CN112831259A - Modified surfactant, spraying method and spraying device - Google Patents

Modified surfactant, spraying method and spraying device Download PDF

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Publication number
CN112831259A
CN112831259A CN202011583213.3A CN202011583213A CN112831259A CN 112831259 A CN112831259 A CN 112831259A CN 202011583213 A CN202011583213 A CN 202011583213A CN 112831259 A CN112831259 A CN 112831259A
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spraying
nozzle
panel
shaped
strip
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CN202011583213.3A
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CN112831259B (en
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洪进元
曹利涛
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Dongguan Julei Industry Co ltd
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Dongguan Julei Industry Co ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/06Unsaturated polyesters having carbon-to-carbon unsaturation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00Processes for applying liquids or other fluent materials
    • B05D1/02Processes for applying liquids or other fluent materials performed by spraying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254After-treatment
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/20Diluents or solvents

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spray Control Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention discloses a modified surfactant, a spraying method and a spraying device, wherein the modified surfactant comprises the following components in parts by weight: 20-30 parts of unsaturated polyester resin, 20-30 parts of methyl ethyl ketone MEK solvent, 15-20 parts of methyl isobutyl ketone MIBK solvent, 45-50 parts of ethyl acetate EAC solvent and 0.2-0.5 part of auxiliary agent; the modified surface activator is mainly used for improving the adhesive force of various coatings to various metals and special plastic materials and improving the water resistance, salt fog resistance and wet adhesion of the coatings, is specially used for spraying UV and PU coatings on aluminum, aluminum alloy, stainless steel, copper, nickel and the like, and has the advantages of improving the adhesive force of metals difficult to adhere and the problems of water resistance, salt fog resistance and boiling resistance through the spraying method and the spraying device, along with remarkable effect.

Description

Modified surfactant, spraying method and spraying device
Technical Field
The invention relates to the technical field of spraying devices, in particular to a modified surface active agent, a spraying method and a spraying device.
Background
The surface active agent, namely the surfactant, has a series of physical and chemical effects such as wetting or anti-sticking, emulsifying or demulsifying, foaming or defoaming, solubilizing, dispersing, washing, corrosion prevention, antistatic and the like and corresponding practical application, and in the using process of the surfactant, the surfactant is directly added into a corresponding solvent to be used as a performance additive, and is directly covered on the surfaces of metals, plastics and the like in a spraying process to improve the adhesive force between the surfaces of materials and paint, so that the problems of paint falling and the like after the paint is sprayed are avoided.
The prior surfactants do not significantly enhance the improved properties of the coating.
Disclosure of Invention
The invention aims to provide a modified surfactant, a spraying method and a spraying device, which solve the problem that the product quality is influenced because part of the active agent liquid is remained and falls to the surface of a plate in the intermittent spraying process of the conventional spraying device, so that the active agent is distributed on part of the surface of the plate, the thickness of a subsequent paint surface, the adhesive force of a paint film and the like are different.
In order to solve the technical problems, the invention specifically provides the following technical scheme: a modified surface active agent comprises the following components in parts by weight:
20-30 parts of unsaturated polyester resin,
20-30 parts of methyl ethyl ketone MEK solvent,
15-20 parts of methyl isobutyl ketone MIBK solvent,
45-50 parts of ethyl acetate EAC solvent,
0.2-0.5 part of an auxiliary agent.
A spraying method of a modified surface active agent comprises the steps of spraying 6-10 microns of the modified surface active agent on a piece to be sprayed through a spraying device;
drying the mixture for 10 to 20 minutes at the temperature of 70 to 80 ℃;
and then spraying either one or both of UV paint and PU paint.
A spray coating device is used for spraying the modified surface active agent on a piece to be sprayed and comprises a frame and a plurality of nozzles arranged on the frame, wherein each nozzle is provided with a drip leakage prevention device used for cleaning the residual modified surface active agent liquid in the intermittent spray coating process;
the water clock prevention device comprises a base surrounding structure arranged on the rack, two panel prevention structures are symmetrically arranged at the bottom of the base surrounding structure, the nozzle is connected with the base surrounding structure, the panel prevention structures are abutted to the spraying panel of the nozzle, and the panel prevention structures rotate to remove residual activator liquid.
Further, the base surrounding structure comprises a horizontal connecting plate arranged at the bottom of the rack, the bottom of the horizontal connecting plate is fixedly connected with the connecting column, the nozzle is installed at the bottom of the connecting column, a rotating unit is arranged at the top of the connecting column, two supporting column groups are symmetrically arranged on the rotating unit and arranged between the base surrounding structure and the panel prevention structure, each supporting column group comprises two symmetrically arranged supporting columns, one end of each supporting column is connected with the base surrounding structure, and the other end of each supporting column is connected with the panel prevention structure; the panel prevention structure is in contact with the spray panel of the nozzle through a driving unit, and cleans the spray panel of the nozzle through the driving of the rotating unit.
Furthermore, the rotary unit comprises an annular mounting groove formed in the connecting column and a first cylindrical gear rotatably connected to the annular mounting groove, the first cylindrical gear is meshed with a second cylindrical gear connected to the bottom of the horizontal connecting plate, the second cylindrical gear is connected with a first driving device through a rotating shaft, the annular mounting groove is rotatably connected with the first cylindrical gear, the bottom of the first cylindrical gear is fixedly connected with a strip-shaped bottom plate, and the two support column groups are symmetrically arranged at the bottom of the strip-shaped bottom plate. Furthermore, the driving unit comprises two linear grooves and two fixed connection shafts, wherein the two linear grooves and the two fixed connection shafts are symmetrically arranged on one side, opposite to the supporting column, of the supporting column top, the two linear grooves are connected with a horizontal sliding plate in a sliding mode, the bottom of the horizontal sliding plate is vertically and fixedly connected with an extension driving rod, the free end of the extension driving rod is fixedly connected with the two bar-shaped sliding seats in sliding connection with the inside of the linear grooves, the panel prevention structure is installed on the bar-shaped sliding seats through torsion springs, one of the bar-shaped sliding seats is internally provided with an adjusting screw rod in threaded connection with the end part of the horizontal sliding rod through a bearing, one end of the adjusting screw rod is connected with a second driving device, and a carrier roller used for supporting the panel prevention structure is rotatably connected.
Further, the distance between the lowest point on the carrier roller and the horizontal connecting plate is equal to the distance between the bottom of the nozzle and the horizontal connecting plate, and the side wall of the linear groove close to the nozzle in the vertical direction is tangent to the surface of the carrier roller.
Further, panel prevention structure includes and installs through torque spring bar partition panel on the bar slide and along the perpendicular to connecting axle axis direction sets up the T type slot at bar partition panel top, T type slot is inside to be inserted and is equipped with and is used for cleaing away remain the absorbent sponge of activator liquid on the nozzle, just absorbent sponge with the nozzle offsets adsorbs remaining activator liquid and further clears away through the rotation, T type slot is kept away from one side of bar slide with bar partition panel outside intercommunication is provided with and is used for the restriction the spacing subassembly that the absorbent sponge breaks away from.
Further, spacing subassembly is including setting up the spacing groove of bottom is connected with the rotation in the T type slot right angle stopper on the spacing inslot side wall, the bottom of right angle stopper with be connected with reset spring between the spacing inslot bottom jointly, just right angle limit on the right angle stopper is in the restriction under reset spring's the elastic action adsorb the sponge breaks away from T type slot.
Furthermore, the adsorption sponge comprises a slot bottom plate inserted in the T-shaped slot and a sponge body glued on the slot bottom plate, a plurality of table-shaped bulges which are used for contacting with the nozzle extend outwards along the arrangement direction of the T-shaped slot at equal intervals on the surface of the sponge body, two sliding grooves are symmetrically arranged at the bottom of the strip-shaped bottom plate corresponding to the plurality of supporting columns, each supporting column is connected in the corresponding sliding groove in a sliding manner, the bottoms of the two corresponding support columns are connected with a strip-shaped drive plate together, each strip-shaped drive plate is connected with a linear drive screw rod arranged at the bottom of the strip-shaped bottom plate in a threaded manner, and one end of the linear driving screw is connected with a third driving device, and the plurality of table-shaped bulges on the sponge body are in orderly contact with the nozzle for use through the driving of the linear driving screw.
The invention has the beneficial effects that: the embodiment of the invention provides a modified surfactant, a spraying method and a spraying device, wherein the modified surfactant comprises the following components in parts by weight: 20-30 parts of unsaturated polyester resin, 20-30 parts of MEK solvent, 15-20 parts of MIBK solvent, 45-50 parts of EAC solvent and 0.2-0.5 part of auxiliary agent; the modified surface activator is mainly used for improving the adhesive force of various coatings to various metals and special plastic materials and improving the water resistance, salt fog resistance and wet adhesion of the coatings, is specially used for coating UV and PU coatings on aluminum, aluminum alloy, stainless steel, copper, nickel and the like, and has the advantages of improving the adhesive force of metals difficult to adhere and the problems of water resistance, salt fog resistance and boiling resistance through the spraying method and the spraying device, along with remarkable effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a spraying apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a spraying apparatus according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion A of a spraying device according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating steps of a spraying method for modifying a surfactant according to an embodiment of the present invention.
The reference numerals in the drawings denote the following, respectively:
1-a frame; 2-a nozzle; 3-a drip prevention device;
301-base surround structure; 302-panel prevention structure; 303-horizontal connecting plate; 304-connecting column; 305-a rotation unit; 306-a support column; 307-a drive unit; 308-an annular mounting groove; 309-a first cylindrical gear; 310-a second cylindrical gear; 311-strip-shaped bottom plate; 312-linear slots; 313-a connecting shaft; 314-horizontal sliding plate; 315-linear drive screw; 316-extension drive rod; 317-bar-shaped sliding seats; 318-adjusting screw; 319-carrying rollers; 320-strip-shaped partition boards; 321-T type slot; 322-adsorption sponge; 323-a spacing assembly; 324-a limiting groove; 325-right angle stopper; 326-a return spring; 327-sponge body; 328-a mesa-shaped protrusion; 329-sliding groove; 330-strip drive board; 331-slot floor.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Referring to fig. 4, fig. 4 is a flowchart illustrating steps of a spraying method for modifying a surfactant according to an embodiment of the present invention.
A modified surface active agent comprises the following components in parts by weight:
20 to 30 parts of unsaturated polyester resin, 20 to 30 parts of methyl ethyl ketone MEK solvent,
15-20 parts of methyl isobutyl ketone MIBK solvent,
45-50 parts of ethyl acetate EAC solvent and 0.2-0.5 part of auxiliary agent;
a spraying method of a modified surface active agent comprises the following steps:
step 101: spraying 6-10 um of the modified surfactant on a piece to be sprayed by a spraying device;
step 102: drying the mixture for 10 to 20 minutes at the temperature of 70 to 80 ℃;
step 103: and then spraying either one or both of UV paint and PU paint.
The modified surfactant provided by the embodiment is a special modified surfactant, is mainly used for improving the adhesion of various coatings to various metals and special plastic materials and improving the water resistance, salt fog resistance and wet adhesion of the coatings, is specially used for solving the problems of adhesion of UV (ultraviolet) and PU (polyurethane) coatings to metals difficult to adhere such as aluminum, aluminum alloy, stainless steel, copper, nickel and the like, water resistance, salt fog resistance and boiling resistance, and has a very remarkable effect.
Example 1:
20 parts of unsaturated polyester resin, 20 parts of MEK solvent, 15 parts of MIBK solvent, 45 parts of EAC solvent and 0.2 part of auxiliary agent.
Example 2:
25 parts of unsaturated polyester resin, 25 parts of MEK solvent, 18 parts of MIBK solvent, 48 parts of EAC solvent and 0.35 part of auxiliary agent.
Example 3:
30 parts of unsaturated polyester resin, 30 parts of MEK solvent, 20 parts of MIBK solvent, 50 parts of EAC solvent and 0.5 part of auxiliary agent.
The following table shows the modified surfactants provided in this example 2.
Appearance of the product Clear turbidity
Active ingredient 10%
Density (g/ml) 0.85
Viscosity (number 2 cup) 8 to 10 seconds
Acid value (mg/KOH/g) 5
Molecular weight 10000
When the existing spraying device is used for spraying the surface of a material, an active agent is directly sprayed to the surface of the material to cover the surface of the material in a spraying mode after the surface of the material is sprayed, because a certain time interval exists between two plates entering the spraying device, the spraying device adopts intermittent spraying operation, the spraying is stopped after the spraying operation of the first plate is finished, and the spraying operation is carried out again when the next plate enters the spraying device, so that the waste of a large amount of the active agent is avoided, but the spraying device avoids the waste of the active agent in large amount through the intermittent spraying operation, however, in the intermittent process of stopping spraying of the spraying device, because of the spraying mode of the active agent and the self gravity, the residual part of the active agent liquid at the nozzle of the spraying device can be caused, and finally gathers and separates to the plate below due to the self gravity, the distribution of the active agent on the surface of the plate is uneven, so that the subsequent paint surface thickness and the paint film adhesive force are different, and the product quality is influenced.
As shown in fig. 1 to 3, the present invention provides a modified surfactant comprising a frame 1 and a plurality of spray nozzles 2 provided on the frame 1, each of the spray nozzles 2 being provided with a dripping prevention device 3 for preventing cleaning of activator liquid remaining during intermittent spraying,
the drip prevention device 3 includes a base surrounding structure 301 provided on the frame 1 and two panel prevention structures 302 symmetrically provided at the bottom of the base surrounding structure 301, and the nozzle 2 is provided on the base surrounding structure 301, and the panel prevention structures 302 are brought into contact with the ejection panel of the nozzle 2 through the base surrounding structure 301 and rotated to remove the remaining activator liquid.
The surface active agent is an auxiliary agent, different surface active agents cover different plate surfaces in a spraying mode to have different effects, different problems are solved, for example, the spraying yield of PC + 10/20% GF can be improved, the existing WN-8757 surface active agent can be used on PC + 10/20% GF, the WN-8757 surface active agent and a treating agent are sprayed in a same spraying room in a wet-on-wet mode, the processes of priming paint, plating, intermediate paint and finish paint are sequentially carried out, and the whole coating process uses an NVCM coating process;
or WN-8757 surfactant can be used for spraying, and then the processes of primer, intermediate coat and finish coat are carried out, wherein the primer and the WN-8757 surfactant are sprayed in a same spraying room in a wet-on-wet mode, a UV coating process is used in the whole coating process, the problem that when the WN-8757 surfactant is not used, the primer is sprayed under normal spraying treatment and then baked to cause fiber ends to emerge can be solved through the two modes, and the spraying yield is improved.
Secondly, the metal material can be repaired by using a surfactant, for example, an NCVM (non-volatile memory) coating process is used, the metal material finish paint is polished, WN-8757 surfactant is sprayed, and then the working procedures of the treating agent, the primer, the plating layer, the intermediate paint and the finish paint are sequentially carried out;
or polishing the metal finish paint by using a UV coating process, spraying WN-8757 surfactant, and then sequentially performing the working procedures of primer, intermediate paint and finish paint, wherein the two process flows are wet-on-wet spraying and standing for 24 hours to finish the repair.
In addition, when materials are treated by ultrasonic waves, liquid medicine or cleaning agent residues are generated to cause poor spraying, and the problem can be solved by spraying WN-8757 surfactant.
When the surfactant is sprayed to the surface of a metal plate or a PC + 10/20% GF material through the nozzle 2, the spraying of the surface of the plate is stopped intermittently after the spraying of the surface of the plate is finished, and the spraying operation of spraying the surfactant through the nozzle 2 is started again when the next plate is in the device.
When the nozzle 2 stops spraying the surfactant, part of the liquid of the surfactant can remain on the spraying panel of the nozzle 2 and gather, and is disconnected from the nozzle 2 under the action of self gravity and falls to the surface of the plate below, so that the uniformity of the coverage of the surfactant on the surface of the plate is damaged, the surfactant in the area is thinly covered and the coverage of the peripheral side is thicker when the liquid of the surfactant splashes to the surface of the plate, or the surfactant in the area is thickly covered due to the dripping of the surfactant on the surface of a new plate, the thickness of follow-up primer, finish paint and the like and the adhesive force of a paint film are affected, and the quality of a product is affected.
The panel prevention structure 302 is driven to be in contact with the spraying panel of the nozzle 2 through the base surrounding structure 301, so that residual active agent liquid on the nozzle 2 is prevented from falling to the surface of the plate, and then the panel prevention structure 302 is driven to rotate on the surface of the spraying panel of the nozzle 2 through the base surrounding structure 301 to remove the residual active agent liquid, so that the influence on the quality of a product caused by the fact that the residual active agent liquid continuously falls to the surface of the plate after the panel prevention structure 302 is disconnected from the nozzle 2 is avoided.
Base encircles structure 301 including setting up at the horizontal connection board 303 of frame 1 bottom and the spliced pole 304 of fixed connection in horizontal connection board 303 bottom, and nozzle 2 installs the bottom at spliced pole 304, be provided with rotary unit 305 on the spliced pole 304, the symmetry is provided with two support column groups that are used for installing corresponding panel prevention structure 302 on the rotary unit 305, every support column group all includes two symmetry settings at the support column 306 of rotary unit 305 bottom, all be provided with the drive unit 307 of being connected with panel prevention structure 302 on every support column group, and panel prevention structure 302 passes through the injection panel contact of drive unit 307 with nozzle 2, and clear up the injection panel of nozzle 2 through the drive of rotary unit 305.
When the base surrounding structure 301 is used, the driving unit 307 drives the corresponding panel prevention structure 302 to contact with the injection panel of the nozzle 2, and the rotating unit 305 drives the two support column sets to drive the two panel prevention structures 302 to rotate simultaneously, so that the panel prevention structure 302 cleans the residual active agent liquid on the surface of the injection panel of the nozzle 2.
The nozzle 2 is installed on the connecting column 304, one of the nozzle 2 can be normally installed for use, and the other can extend the distance between the nozzle 2 and the bottom of the horizontal connecting plate 303 through the length of the connecting column 304, so that enough space is provided for the base surrounding structure 301 and interference is not caused to the peripheral nozzle 2 and normal use of the nozzle 2.
The panel prevention structures 302 are driven by the corresponding driving units 307, the two panel prevention structures 302 can be used in a staggered manner, one panel prevention structure 302 can be started to be used when a fault or other problems occur in the other panel prevention structure 302, and the influence on the product quality caused by the fault of the panel prevention structure 302 is avoided.
The rotating unit 305 comprises an annular mounting groove 308 formed in the connecting column 304 and a first cylindrical gear 309 rotatably connected to the annular mounting groove 308, the first cylindrical gear 309 is meshed with a second cylindrical gear 310 connected to the bottom of the horizontal connecting plate 303, the second cylindrical gear 310 is connected with a first driving device through a rotating shaft, a strip-shaped bottom plate 311 fixedly connected to the bottom of the first cylindrical gear 309 is rotatably connected to the annular mounting groove 308, and the two supporting column groups are symmetrically arranged at the bottom of the strip-shaped bottom plate 311.
When the rotating unit 305 is used, the first driving device is started to drive the second cylindrical gear 310 to rotate, the second cylindrical gear 310 drives the first cylindrical gear 309 to rotate through a meshing relation, the first cylindrical gear 309 rotates to drive the strip-shaped bottom plate 311 fixedly connected with the first cylindrical gear to rotate, the strip-shaped bottom plate 311 synchronously drives the two supporting column groups and the panel preventing structure 302 arranged on the supporting column groups to synchronously rotate, and the panel synchronous structure 302 is used for clearing away the residual active agent liquid on the surface of the spraying panel on the nozzle 2.
The first cylindrical gear 309 rotates around the axis of the connecting column 304, so that the panel preventing structure 302 is always in stable contact with the surface of the nozzle 2 in the rotating process, and damage to the surface of the nozzle 2 caused by change of the distance is avoided.
The strip-shaped bottom plate 311 is provided to provide a space for mounting the strut group.
The driving unit 307 comprises two linear grooves 312 symmetrically formed in the opposite sides of the two corresponding supporting columns 306 and a connecting shaft 313 fixedly connected to the tops of the two supporting columns 306, the two linear grooves 312 are jointly and slidably connected with a horizontal sliding plate 314, the bottom of the horizontal sliding plate 314 is vertically and fixedly connected with an extension driving rod 316, the free end of the extension driving rod 316 is fixedly connected with a bar-shaped sliding seat 317 slidably connected with the insides of the two linear grooves 312, the panel prevention structure 302 is mounted on the bar-shaped sliding seat 317 through a torsion spring, an adjusting screw 318 in threaded connection with the end of the horizontal sliding rod 314 is mounted inside one of the linear grooves 312 through a bearing, one end of the adjusting screw 318 is connected with a second driving device, and a carrier roller 319 for lifting the panel prevention structure 302 is rotatably connected to.
When the driving unit 307 is in use, the panel prevention structure 302 is located between the two supporting pillars 306, and the bottom of the panel prevention structure 302 abuts against the supporting roller 319, while the torsion spring is compressed.
The second driving device is started to drive the adjusting screw 318 to rotate, the adjusting screw 318 drives the horizontal sliding rod 314 to slide downwards along the two linear grooves 312 through threaded engagement, the horizontal sliding rod 314 drives the strip-shaped sliding base 317 to move synchronously through the extension driving rod 316, and the panel prevention structure 302 is driven to move synchronously between the two supporting columns 306 through the movement of the strip-shaped sliding base 317 and advances on the carrier roller 319.
When the bar-shaped slider 317 moves to the same height as the carrier roller 319, the panel prevention structure 302 is driven to rotate around the bar-shaped slider 317 by the elastic force of the torsion spring, and as the bar-shaped slider 317 continues to move, the panel prevention structure 302 rotates to a horizontal state to be in contact with the surface of the nozzle 2.
When panel prevention structure 302 is not in use, convert panel prevention structure 302 into vertical state and place between two support posts 306, avoid causing the interference to the normal use of nozzle 2.
The idler rollers 319 are configured to provide a fulcrum to urge the panel prevention structure 319 to rotate about the bar slide 317 into a vertical position when the panel prevention structure 302 is moved between the two support posts 306.
By providing the extension driving rod 316 on the horizontal sliding rod 314, the horizontal sliding motion 314 is prevented from being disconnected from the adjusting screw 318 when the panel prevention structure 302 is driven to rotate around the bar-shaped sliding base 317, considering that the bottom height of the limiting supporting column 306 should be greater than the bottom height of the nozzle 2 to avoid interference with the use of the panel prevention structure 302 on the other side.
The distance between the lowest point on the carrier roller 319 and the horizontal connecting plate 303 is equal to the distance between the bottom of the nozzle 2 and the horizontal connecting plate 303, and the side wall of the linear groove 312 close to the nozzle 2 in the vertical direction is tangent to the surface of the carrier roller 319.
That is, when the panel prevention structure 302 rotates around the bar-shaped slide base 317, the panel prevention device 302 supported by the supporting roller 319 abuts against the bottom of the nozzle 2 when being in a horizontal state, that is, the panel prevention structure 302 can be completely contacted with the nozzle 2 for cleaning, so that the cleaning effect is optimal.
Meanwhile, the surface of the carrier roller 319 is tangent to the inner wall of the linear groove 312, so that the interference of the carrier roller 319 on the movement of the bar-shaped sliding seat 317 sliding in the linear groove 312 is avoided.
Panel prevention structure 302 includes that install bar partition panel 320 on bar slide 317 through torsion spring and set up the T type slot 321 at bar partition panel 320 top along perpendicular to connecting axle 313 axis direction, and T type slot 321 is inside to be inserted to be equipped with and to be used for cleaing away residual activator liquid on the nozzle 2 and with the absorption sponge 322 that bar partition panel 320 surface flushed, and absorption sponge 322 offset with nozzle 2 adsorbs remaining activator liquid and further clear away through the rotation, and one side that bar slide 317 was kept away from to T type slot 321 and bar partition panel 320 outside intercommunication and be provided with the spacing subassembly 323 that is used for restricting absorption sponge 322 and breaks away from.
When the panel prevention structure 302 is used, the adsorption sponge 322 adsorbs the residual active agent liquid on the nozzle 2, and the adsorption sponge 322 further adsorbs and removes the residual active agent liquid in the surface rotation of the nozzle 2 by the driving of the rotating unit 305, so that the removing effect of the residual active agent liquid is improved.
Adsorb sponge 322 and directly insert when using and establish the inside use that gets into T type slot 321, adsorb sponge 322 and T type slot 321 break away from the connection through spacing subassembly 323 restriction simultaneously for it is more simple convenient that adsorb sponge 322 changes when receiving damage or absorption volume to reach the biggest.
Secondly, considering that the side of the strip-shaped partition plate 320 provided with the adsorption sponge 322 rolls on the carrier roller 319, in order to avoid the damage of the carrier roller 319 to the adsorption sponge 322, the surface of the adsorption sponge 322 is limited to be flush with the surface of the strip-shaped partition plate 320, that is, the carrier roller 319 only contacts with the surface of the strip-shaped partition plate 320 and does not damage the non-adsorption sponge 322, and meanwhile, when the adsorption sponge 322 is in a horizontal state, the adsorption sponge 322 can normally contact with the bottom of the nozzle 2 to remove residual active agent liquid.
Further, the bar-shaped sliding base 317 can be driven to further move, so that the bar-shaped partition plate 320 further deflects after reaching the horizontal state, the contact between the adsorption sponge 322 and the nozzle 2 is tighter, and the adsorption effect is better.
The limiting component 323 comprises a limiting groove 324 arranged at the bottom in the T-shaped slot 321 and a right-angle limiting block 325 rotatably connected to the inner side wall of the limiting groove 324, a return spring 326 is commonly connected between the bottom of the right-angle limiting block 325 and the bottom in the limiting groove 324, and a right-angle edge on the right-angle limiting block 325 limits the adsorption sponge 322 to be separated from the T-shaped slot 321 under the elastic action of the return spring 306.
When spacing subassembly 323 uses, the inclined plane of right angle stopper 325 with adsorb sponge 322 insert establish the route relative and be located the spacing groove 324 outside, it establishes inside entering T type slot 321 to adsorb sponge 322, the bottom of adsorbing sponge 322 forces the right angle stopper 325 to rotate in spacing groove 324 inside gradually through the inclined plane of right angle stopper 325 and gets into during spacing groove 324 is inside until the junction of the right angle limit of right angle stopper 325 and hypotenuse gets into spacing groove 324, reset spring 326 is compressed, it can normally insert and establish inside entering T type slot 321 to adsorb sponge 322.
When the adsorption sponge 322 is inserted into the T-shaped slot 321, the right-angle limiting block 325 is reset under the elastic force of the return spring 326, and the adsorption sponge 322 is limited to be separated from the T-shaped slot 321 by the side wall of the right-angle side of the right-angle limiting block 325, which is perpendicular to the bottom of the T-shaped slot 321.
The adsorption sponge 322 comprises a slot bottom plate 331 inserted in the T-shaped slot 321 and a sponge body 327 adhered to the slot bottom plate 331, wherein a plurality of table-shaped protrusions 328 for contacting with the nozzle 2 extend outwards from the surface of the sponge body 327 along the arrangement direction of the T-shaped slot 321 at equal intervals.
The adsorption sponge 322 is driven by the slot bottom plate 331 to enable the sponge body 327 to enter the T-shaped slot 321, and meanwhile, the adsorption effect is improved by matching the arranged table-shaped protrusion 328 with the nozzle 2. The bottom of the strip-shaped bottom plate 311 is symmetrically provided with two sliding grooves 329 corresponding to the plurality of supporting columns 306, each supporting column 306 is slidably connected in the corresponding sliding groove 329, the bottom of each corresponding two supporting columns 306 is commonly connected with a strip-shaped driving plate 330, each strip-shaped driving plate 330 is connected with a linear driving screw 315 installed at the bottom of the strip-shaped bottom plate 311 in a threaded manner, one end of each linear driving screw 315 is connected with a third driving device, and the plurality of table-shaped protrusions 328 on the sponge body 327 are in orderly contact with the nozzle 2 through the driving of the linear driving screws 315.
In order to further improve the adsorption utilization rate of the surface of the sponge body 327 on the active agent liquid, a third driving device is started to drive the linear driving screw 315 to rotate, the linear driving screw 315 drives the strip-shaped driving plate 330 to do linear motion along the sliding groove 329 through thread engagement, and the linear driving screw is driven by the strip-shaped driving plate 330; the two support posts 306 move synchronously within the slide slots 329.
The interval between the movement driving panel preventing structure 302 of the two supporting columns 306 and the nozzle 2 is changed, so that the plurality of table-shaped protrusions 328 on the sponge body 327 can be sequentially contacted with the bottom of the nozzle 2, the utilization rate of the sponge body 327 is improved, and the adsorption sponge 322 is prevented from being frequently replaced.
The bar-shaped partition plate 320 is slidably connected to the inside of the two linear grooves 312, and the length of the bar-shaped partition plate 320 is equal to the maximum distance between the bar-shaped sliding base 317 and the carrier roller 319.
The strip-shaped partition plate 320 is prevented from coming out of contact with the carrier roller 3189 during the movement between the two support pillars 306, so that the panel prevention structure 302 cannot come into contact with the nozzle 2 to remove the remaining active agent liquid.
According to the invention, the base surrounding structure is arranged to drive the panel prevention structure to be in contact with the spray panel of the nozzle, so that the influence on the uniform distribution of the panel surfactant caused by the fact that the residual active agent liquid at the nozzle drops to the surface of the panel is avoided, then the residual active agent liquid is removed by the rotation of the base surrounding structure to drive the panel prevention structure to rotate on the surface of the spray panel of the nozzle, the influence on the uniformity of the active agent spraying caused by the fact that the residual active agent liquid continuously drops to the surface of a subsequently processed panel after the panel prevention structure is separated from the nozzle is avoided, and the problems of different paint surface thicknesses and different paint film adhesive forces in the subsequent paint spraying process and the influence on the product quality caused by the problems are avoided by removing the residual active agent liquid.
In summary, embodiments of the present invention provide a modified surfactant, a spraying method, and a spraying apparatus, where the modified surfactant includes the following components in parts by weight: 20-30 parts of unsaturated polyester resin, 20-30 parts of MEK solvent, 15-20 parts of MIBK solvent, 45-50 parts of EAC solvent and 0.2-0.5 part of auxiliary agent; the modified surface activator is mainly used for improving the adhesive force of various coatings to various metals and special plastic materials and improving the water resistance, salt fog resistance and wet adhesion of the coatings, is specially used for coating UV and PU coatings on aluminum, aluminum alloy, stainless steel, copper, nickel and the like, and has the advantages of improving the adhesive force of metals difficult to adhere and the problems of water resistance, salt fog resistance and boiling resistance through the spraying method and the spraying device, along with remarkable effect.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The modified surfactant is characterized by comprising the following components in parts by weight:
20-30 parts of unsaturated polyester resin,
20-30 parts of methyl ethyl ketone MEK solvent,
15-20 parts of methyl isobutyl ketone MIBK solvent,
45-50 parts of ethyl acetate EAC solvent,
0.2-0.5 part of an auxiliary agent.
2. A spraying method of a modified surface active agent is characterized in that,
spraying 6-10 um of the modified surfactant on a piece to be sprayed by a spraying device;
drying the mixture for 10 to 20 minutes at the temperature of 70 to 80 ℃;
and then spraying either one or both of UV paint and PU paint.
3. A spray coating device for spraying the modified surfactant onto a member to be sprayed, comprising a frame (1) and a plurality of spray nozzles (2) arranged on the frame (1), each of the spray nozzles (2) being provided with a drip-leak prevention device (3) for cleaning the modified surfactant liquid remaining during intermittent spraying;
the water clock prevention device (3) is including setting up base encirclement structure (301) on frame (1) base encirclement structure (301) bottom symmetry is provided with two panel prevention structures (302), just nozzle (2) with base encirclement structure (301) are connected, panel prevention structure (302) with the injection panel butt of nozzle (2) carries out the rotation and clears away remaining activator liquid.
4. A painting device according to claim 3, characterized in that said base surrounding structure (301) comprises a horizontal web (303) arranged at the bottom of said frame (1), the bottom of said horizontal web (303) being fixedly connected to a connection column (304), the nozzle (2) is arranged at the bottom of the connecting column (304), the top of the connecting column (304) is provided with a rotating unit (305), two supporting column groups are symmetrically arranged on the rotating unit (305), the two supporting column groups are arranged between the base surrounding structure (301) and the panel preventing structure (302), each supporting column group comprises two symmetrically arranged supporting columns (306), one end of the support post (306) is connected to the base surround structure (301), the other end of the support column (306) is connected with the panel prevention structure (302); the panel prevention structure (302) is in contact with the spray panel of the nozzle (2) by a driving unit (307), and cleans the spray panel of the nozzle (2) by the driving of the rotating unit (305).
5. The spraying device according to claim 4, characterized in that the rotating unit (305) comprises an annular mounting groove (308) formed in the connecting column (304) and a first cylindrical gear (309) rotatably connected to the annular mounting groove (308), the first cylindrical gear (309) is engaged with a second cylindrical gear (310) connected to the bottom of the horizontal connecting plate (303), the second cylindrical gear (310) is connected to a first driving device through a rotating shaft, the annular mounting groove (308) is further rotatably connected to the first cylindrical gear (309), a strip-shaped bottom plate (311) is fixedly connected to the bottom of the first cylindrical gear (309), and the two support column groups are symmetrically arranged at the bottom of the strip-shaped bottom plate (311).
6. The spraying device according to claim 4, characterized in that the driving unit (307) comprises two linear grooves (312) symmetrically arranged on opposite sides of the two corresponding supporting columns (306) and a connecting shaft (313) fixedly connected to tops of the two supporting columns (306), the two linear grooves (312) are jointly and slidably connected with a horizontal sliding plate (314), the bottom of the horizontal sliding plate (314) is vertically and fixedly connected with an extension driving rod (316), a free end of the extension driving rod (316) is fixedly connected with a bar-shaped sliding seat (317) slidably connected with the insides of the two linear grooves (312), the panel prevention structure (302) is installed on the bar-shaped sliding seat (317) through a torsion spring, an adjusting screw rod (318) in threaded connection with an end of the horizontal sliding rod (314) is installed inside one of the linear grooves (312) through a bearing, and one end of the adjusting screw rod (318) is connected with a second driving device, and a carrier roller (319) used for lifting the panel preventing structure (302) is rotatably connected to the connecting shaft (313).
7. A spray device according to claim 6, characterised in that the spacing between the lowermost point on the idler (319) and the horizontal web (303) is the same as the spacing between the bottom of the nozzle (2) and the horizontal web (303), and that the side wall of the linear slot (312) vertically adjacent the nozzle (2) is tangential to the idler (319) surface.
8. The spraying device according to claim 7, wherein the panel prevention structure (302) comprises a strip-shaped partition plate (320) mounted on the strip-shaped sliding seat (317) through a torsion spring and a T-shaped slot (321) arranged at the top of the strip-shaped partition plate (320) along a direction perpendicular to the axis of the connecting shaft (313), an adsorption sponge (322) used for removing residual activator liquid on the nozzle (2) is inserted into the T-shaped slot (321), the adsorption sponge (322) is abutted against the nozzle (2) to adsorb the residual activator liquid and further removed through rotation, one side of the T-shaped slot (321) far away from the strip-shaped sliding seat (317) is communicated with the outside of the strip-shaped partition plate (320) and is provided with a limiting component (323) used for limiting the adsorption sponge (322) to be separated.
9. The spraying device according to claim 8, characterized in that the limiting component (323) comprises a limiting groove (324) arranged at the bottom in the T-shaped slot (321) and a right-angle limiting block (325) rotatably connected to the inner side wall of the limiting groove (324), a return spring (326) is commonly connected between the bottom of the right-angle limiting block (325) and the bottom in the limiting groove (324), and the right-angle side of the right-angle limiting block (325) limits the adsorption sponge (322) to be separated from the T-shaped slot (321) under the elastic force of the return spring (306).
10. The spraying device according to claim 9, wherein the adsorption sponge (322) comprises a slot bottom plate (331) inserted inside the T-shaped slot (321) and a sponge body (327) glued on the slot bottom plate (331), a plurality of table-shaped protrusions (328) for contacting with the nozzle (2) extend outwards from the surface of the sponge body (327) at equal intervals along the arrangement direction of the T-shaped slot (321), two sliding grooves (329) are symmetrically arranged at the bottom of the strip bottom plate (311) corresponding to the plurality of supporting columns (306), each supporting column (306) is slidably connected in the corresponding sliding groove (329), a strip driving plate (330) is commonly connected between the bottoms of the corresponding two supporting columns (306), and a linear driving screw (315) installed at the bottom of the strip bottom plate (311) is in threaded connection with each strip driving plate (330), and one end of the linear driving screw (315) is connected with a third driving device, and the plurality of table-shaped protrusions (328) on the sponge body (327) are in orderly contact with the nozzle (2) for use through the driving of the linear driving screw (315).
CN202011583213.3A 2020-12-28 2020-12-28 Spraying device Active CN112831259B (en)

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CN115365041A (en) * 2022-08-22 2022-11-22 江西万橡家具集团有限公司 Surface plastic spraying device for steel-wood furniture processing
CN115365041B (en) * 2022-08-22 2023-12-05 江西万橡家具集团有限公司 Surface plastic spraying device for processing steel-wood furniture

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