阅读说明：本技术 一种用于加工复合钢板的均匀涂漆装置及其涂漆方法 (Uniform painting device and painting method for processing composite steel plate ) 是由 谭崴 于 2019-11-27 设计创作，主要内容包括：本发明公开了一种用于加工复合钢板的均匀涂漆装置,包括承载架体和安装于承载架体上的移料装置和喷涂装置；移料装置包括送料机构、操作机构和转移机构,喷涂装置包括支撑机构和安装于支撑机构上的联动机构,联动机构的第三滑块与第二螺纹杆螺纹配合,第三滑块的表面固定有第五竖板,第五竖板的表面垂直固定有承重板,承重板的上表面固定有搅拌桶,油漆涂料置于搅拌桶,搅拌桶的底板上安装有喷头,喷头贯穿承重板且竖直向下。本发明通过移料装置的设置,能够自动化完成将复合钢板的进料和出料过程,通过喷涂装置的设置,能够从喷涂方式以及喷涂原料两方面来实现喷涂效果的均匀性,涂漆效果好、涂漆效率高,适用于复合钢板表面的涂漆加工操作。(The invention discloses a uniform painting device for processing a composite steel plate, which comprises a bearing frame body, and a material moving device and a spraying device which are arranged on the bearing frame body; move the material device and include feeding mechanism, operating device and transfer mechanism, the spraying device includes supporting mechanism and installs the link gear on supporting mechanism, link gear's third slider and second threaded rod screw-thread fit, the fixed surface of third slider has the fifth riser, the perpendicular fixed surface of fifth riser has the bearing plate, the last fixed surface of bearing plate has the agitator, paint coating arranges the agitator in, install the shower nozzle on the bottom plate of agitator, the shower nozzle runs through bearing plate and vertical downwards. According to the invention, the feeding and discharging processes of the composite steel plate can be automatically completed through the arrangement of the material moving device, the uniformity of the spraying effect can be realized in two aspects of a spraying mode and a spraying raw material through the arrangement of the spraying device, the painting effect is good, the painting efficiency is high, and the device is suitable for the painting processing operation of the surface of the composite steel plate.)

1. A uniform painting device for processing a composite steel plate is characterized by comprising a bearing frame body (1), and a material moving device (2) and a spraying device (3) which are arranged on the bearing frame body (1);

the bearing frame body (1) comprises a bearing bottom plate (11), a first C-shaped plate (12), a first sliding frame (13) and a second C-shaped plate (14) are fixed on the upper surface of the bearing bottom plate (11), the first sliding frame (13) comprises two first vertical plates (1301) which are arranged in parallel, two first transverse plates (1302) and two second transverse plates (1303) are vertically fixed on the surface, facing the first C-shaped plate (12), of one first vertical plate (1301), a first threaded rod (1304) arranged in the vertical direction is fixed between the two transverse plates, a first sliding block (1305) is installed on the first threaded rod (1304), a limiting strip (1306) arranged in the vertical direction is fixed on the surface, facing the first C-shaped plate (12), of the other first vertical plate (1301), and a second sliding block (1307) is installed on the limiting strip (1306); a third transverse plate (15) is fixed at the edge position of the second C-shaped plate (14);

the material moving device (2) comprises a feeding mechanism (21), an operating mechanism (22) and a transfer mechanism (23), wherein the feeding mechanism (21) comprises a first electric cylinder (2101), the first electric cylinder (2101) is fixed on the lower surface of a third transverse plate (15), a second electric cylinder (2102) is fixed at the output end of the first electric cylinder (2101), the second electric cylinder (2102) is arranged in the vertical direction, the output end of the second electric cylinder (2102) faces downwards, a first material suction disc (2103) is fixed at the output end of the second electric cylinder (2102), and a suction disc is fixed on the lower surface of the first material suction disc (2103); the operating mechanism (22) comprises a material placing plate (2201), an L-shaped plate (2202) is fixed on the end side of the upper surface of the material placing plate (2201), a first connecting plate (2203) is fixed on the outer side surface of the L-shaped plate (2202), and a second threaded through hole (2204) is formed in the surface of the first connecting plate (2203); a first baffle (2205) and a third vertical plate (2206) are fixed on the upper surface of the material placing plate (2201), a first cylinder (2207) is fixed on the surface of the third vertical plate (2206), and a second baffle (2208) is fixed at the piston end of the first cylinder (2207); the transfer mechanism (23) comprises a third electric cylinder (2301), the third electric cylinder (2301) is fixed to the lower surface of the transverse plate of the first C-shaped plate (12) through a connecting block (2302), a piston end of the third electric cylinder (2301) is fixed with a fourth electric cylinder (2303), the fourth electric cylinder (2303) is arranged in the vertical direction, the piston end faces downwards, a second material suction plate (2304) is fixed to the piston end of the fourth electric cylinder (2303), and a plurality of suckers are fixed to the lower surface of the second material suction plate (2304);

the spraying device (3) comprises a supporting mechanism (31) and a linkage mechanism (32) arranged on the supporting mechanism (31), the supporting mechanism (31) comprises a supporting plate (3101), the supporting plate (3101) is fixed on the surfaces of a first sliding block (1305) and a second sliding block (1307), two opposite fourth vertical plates (3102) are fixed on the other surface of the supporting plate (3101), a second threaded rod (3103) penetrates through the fourth vertical plate (3102), the second threaded rod (3103) is rotationally connected with the fourth vertical plate (3102), a first bevel gear (3104) is fixed on the second threaded rod (3103), a third threaded rod (3106) penetrates through the other surface of the box body (3105), a second bevel gear (3107) is fixed at one end of the third threaded rod (3106), the second bevel gear (3107) is meshed with the first bevel gear (3104), and a second motor is connected at one end of the second threaded rod (3103), the third threaded rod (3106) is in threaded fit with the first connecting plate (2203); the linkage mechanism (32) comprises a third sliding block (3201), the third sliding block (3201) is in threaded fit with a second threaded rod (3103), a fifth vertical plate (3202) is fixed on the surface of the third sliding block (3201), a bearing plate (3203) is vertically fixed on the surface of the fifth vertical plate (3202), a stirring barrel (3204) is fixed on the upper surface of the bearing plate (3203), paint is placed in the stirring barrel (3204), a third C-shaped plate (3205) is further fixed on the surface of the bearing plate (3203), and a stirring shaft (3206) penetrates through the surface of a transverse plate of the third C-shaped plate (3205); a spray head 3208 is arranged on the bottom plate of the stirring barrel 3206, and the spray head 3208 penetrates through the bearing plate 3203 and vertically faces downwards.

2. The paint homogenizing device for manufacturing composite steel sheets according to claim 1, characterized in that the first C-shaped plate (12) and the second C-shaped plate (14) are respectively located on both sides of the first carriage (13).

3. The uniform painting device for processing the clad steel plate as claimed in claim 1, wherein a threaded through hole matched with the first threaded rod (1304) is formed in the surface of the first sliding block (1305), and a first motor is fixed at the upper end of the first threaded rod (1304) and drives the first motor to rotate.

4. A device for processing composite steel sheet according to claim 1, wherein the second slider (1307) is sliding fit with the limit bar (1306) and the second slider (1307) is flush with the first slider (1305).

5. The uniform painting device for processing the composite steel plate is characterized in that a storage plate (16) is further fixed on the upper surface of the bearing bottom plate (11), a plurality of stop rods are fixed on the surface edge positions of the storage plate (16) along the vertical direction, and the composite steel plate to be painted is stacked in a space surrounded by the storage plate (16) and the stop rods.

6. The uniform painting apparatus for processing composite steel plates according to claim 1, wherein the first bevel gear (3104) and the second bevel gear (3107) are both located in a box (3105).

7. The paint leveling device for processing composite steel plates according to claim 1, wherein limiting strips are fixed on the upper and lower surfaces of the third sliding block (3201) and play a role in limiting, so that the third sliding block (3201) moves in the axial direction under the rotation action of the second threaded rod (3103).

8. The paint homogenizing and coating apparatus for manufacturing clad steel plates as claimed in claim 1, wherein a third motor is connected to one end of the stirring shaft (3206), and a stirring paddle is fixed to the other end.

9. The painting method of a uniform painting apparatus for working a clad steel sheet according to claim 1, comprising the steps of:

firstly, stacking the composite steel plates to be painted in a space surrounded by a storage plate (16) and a baffle plate layer by layer, firstly controlling a first electric cylinder (2101) to enable a first suction disc (2103) to be positioned right above the composite steel plates to be painted, then controlling a second electric cylinder (2102) to move the first suction disc (2103) downwards and enable the suction disc and the composite steel plates to be painted to be extruded, enabling the painted composite steel plates to be adsorbed on the lower surface of the first suction disc (2103) through the suction disc, then controlling the first electric cylinder (2101) to enable the first suction disc (2103) adsorbed with the composite steel plates to be positioned right above a material placing plate (2201), controlling the second electric cylinder (2102) to enable the composite steel plates on the first suction disc (2103) to be contacted with the upper surface of the material placing plate (2201), and then controlling a first air cylinder (2207) to enable a second baffle plate (2208) to fix the composite steel plates to be painted between a first baffle plate (2205) and a second baffle plate (2208), -homing the first thin material disc (2103);

secondly, placing the paint coating to be sprayed into a stirring barrel (3204), starting a third motor connected with a stirring shaft (3206), and driving a stirring paddle to fully stir the paint coating in the stirring barrel (3204);

thirdly, a second motor is started, the second motor drives a second threaded rod (3103) to rotate, through meshing transmission among bevel gears, a third threaded rod (3106) rotates, the second threaded rod (3103) rotates to drive a third sliding block (3201) arranged on the second threaded rod to move axially along the second threaded rod (3103), the third threaded rod (3106) rotates to drive a first connecting plate (2203) arranged on the third threaded rod to move axially along the third threaded rod (3106), so that a spray head (3208) moves in the left-right direction under the driving of the second motor, a composite steel plate to be painted moves in the front-back direction, and a control valve of the spray head (3208) is started, so that paint is uniformly sprayed to the surface of the composite steel plate by the spray head;

and fourthly, after finishing painting and after the surface of the composite steel plate is dried, firstly controlling a first air cylinder (2207) to enable a second baffle (2208) to loosen the composite steel plate, then controlling a third electric cylinder (2301) to enable a second suction disc (2304) to be positioned right above the painted composite steel plate, controlling a fourth electric cylinder (2203) to enable the second suction disc (2304) to absorb the painted composite steel plate, controlling the third electric cylinder (2301) and the fourth electric cylinder (2203) again, transferring the painted composite steel plate out, and finishing the painting operation of the composite steel plate.

Technical Field

The invention belongs to the technical field of composite steel plate processing, and particularly relates to a uniform painting device and a painting method for processing a composite steel plate.

Background

The composite material for household appliances is a product prepared by coating various high molecular coatings (such as polyester, silicon modified polyester, polyvinylidene fluoride resin, polyvinyl chloride, acrylic resin, epoxy resin and the like) or sticking various plastic films (such as PET, PET-PVC composite film and the like) on the surface of a metal strip steel serving as a base material (such as cold-rolled steel plates, hot-dip galvanized plates, electro-galvanized plates and the like) through strict process control. Since the clad steel sheet has high strength and high durability, it is increasingly used in industry and life, and thus, automobiles, refrigerators, washing machines, high-grade furniture, kitchen equipment, industrial and civil buildings, etc. are required to be used. However, in order to further expand the usability of the clad steel plate, a functional paint, such as a paint for improving the surface appearance, wear resistance or corrosion resistance of the clad steel plate, is generally applied to the surface of the clad steel plate.

The traditional painting device on the production line of the composite steel plate is to place paint liquid to be painted in a paint groove, transfer a layer of paint film to a rubber roller through a steel roller rotating in the paint groove, and then transfer the paint film on the rubber roller to a steel plate passing through a back roller again, thereby finishing the painting operation on the surface of the steel plate. However, the traditional steel plate surface painting device has the defects that the paint liquid is not uniform due to the fact that the paint liquid is easy to precipitate in a paint tank, or the mixed liquid of various paint liquids is easy to generate flooding, so that the paint liquid coating on the surface of the final steel plate is colored, the product quality does not reach the standard, and the like.

Disclosure of Invention

The invention aims to provide a uniform painting device and a painting method for processing a composite steel plate, wherein the feeding and discharging processes of the composite steel plate can be automatically finished through the arrangement of a material moving device, the whole process is automatic, and the processing efficiency can be effectively improved; through the setting of spraying device, not only can make the shower nozzle remove at the uniform velocity on a large scale, can make coating keep the state of stirring in the spraying process moreover, prevent sinking or the come-up phenomenon of coating raw materials, can realize the homogeneity of spraying effect from spraying mode and spraying raw materials two aspects, it is effectual, efficient to paint, is applicable to the japanning processing operation on clad steel sheet surface.

The purpose of the invention can be realized by the following technical scheme:

a uniform painting device for processing a composite steel plate comprises a bearing frame body, a material moving device and a spraying device, wherein the material moving device and the spraying device are installed on the bearing frame body;

the bearing frame body comprises a bearing bottom plate, a first C-shaped plate, a first sliding frame and a second C-shaped plate are fixed on the upper surface of the bearing bottom plate, the first sliding frame comprises two first vertical plates which are arranged in parallel, two first transverse plates and two second transverse plates are vertically fixed on one first vertical plate facing to the surface of the first C-shaped plate, a first threaded rod arranged along the vertical direction is fixed between the two transverse plates, a first sliding block is installed on the first threaded rod, a limiting strip arranged along the vertical direction is fixed on the other first vertical plate facing to the surface of the first C-shaped plate, and a second sliding block is installed on the limiting strip; a third transverse plate is fixed at the edge of the second C-shaped plate;

the material moving device comprises a feeding mechanism, an operating mechanism and a transferring mechanism, the feeding mechanism comprises a first electric cylinder, the first electric cylinder is fixed on the lower surface of the third transverse plate, a second electric cylinder is fixed at the output end of the first electric cylinder, the second electric cylinder is arranged along the vertical direction, the output end of the second electric cylinder faces downwards, a first material sucking disc is fixed at the output end of the second electric cylinder, and a sucking disc is fixed on the lower surface of the first material sucking disc; the operating mechanism comprises a material placing plate, an L-shaped plate is fixed on the end side of the upper surface of the material placing plate, a first connecting plate is fixed on the outer side surface of the L-shaped plate, and a second threaded through hole is formed in the surface of the first connecting plate; a first baffle and a third vertical plate are fixed on the upper surface of the material placing plate, a first cylinder is fixed on the surface of the third vertical plate, and a second baffle is fixed at the piston end of the first cylinder; the transfer mechanism comprises a third electric cylinder, the third electric cylinder is fixed on the lower surface of the transverse plate of the first C-shaped plate through a connecting block, a fourth electric cylinder is fixed on a piston end of the third electric cylinder, the fourth electric cylinder is arranged in the vertical direction, the piston end faces downwards, a second material suction disc is fixed on the piston end of the fourth electric cylinder, and a plurality of suckers are fixed on the lower surface of the second material suction disc;

the spraying device comprises a supporting mechanism and a linkage mechanism arranged on the supporting mechanism, the supporting mechanism comprises a supporting plate, the supporting plate is fixed on the surfaces of a first sliding block and a second sliding block, two fourth vertical plates which are arranged oppositely are fixed on the other surface of the supporting plate, a second threaded rod penetrates through and is arranged on each fourth vertical plate, the second threaded rod is rotatably connected with the fourth vertical plates, a first bevel gear is fixed on the second threaded rod, a third threaded rod further penetrates through and is arranged on the other surface of the box body, a second bevel gear is fixed at one end of each third threaded rod, the second bevel gear is meshed with the first bevel gear, a second motor is connected at one end of the second threaded rod, and the third threaded rod is in threaded fit with; the linkage mechanism comprises a third sliding block, the third sliding block is in threaded fit with the second threaded rod, a fifth vertical plate is fixed on the surface of the third sliding block, a bearing plate is vertically fixed on the surface of the fifth vertical plate, a stirring barrel is fixed on the upper surface of the bearing plate, paint is placed in the stirring barrel, a third C-shaped plate is also fixed on the surface of the bearing plate, and a stirring shaft penetrates through the surface of a transverse plate of the third C-shaped plate; the bottom plate of the stirring barrel is provided with a spray head which penetrates through the bearing plate and is vertically downward.

Further, the first C-shaped plate and the second C-shaped plate are respectively positioned on two sides of the first sliding frame.

Furthermore, the surface of the first sliding block is provided with a threaded through hole matched with the first threaded rod, the upper end of the first threaded rod is fixed with a first motor, and the first motor drives the first threaded rod to rotate.

Further, the second sliding block is in sliding fit with the limiting strip, and the second sliding block is flush with the first sliding block.

Furthermore, a material storage plate is fixed on the upper surface of the bearing bottom plate, a plurality of stop rods are fixed on the edge position of the surface of the material storage plate along the vertical direction, and the composite steel plate to be painted is stacked in a space defined by the material storage plate and the stop rods.

Further, the first bevel gear and the second bevel gear are both located in the box body.

Furthermore, the upper surface and the lower surface of the third sliding block are fixed with limiting strips, so that the third sliding block can move axially under the rotating action of the second threaded rod.

Furthermore, one end of the stirring shaft is connected with a third motor, and the other end of the stirring shaft is fixed with a stirring paddle.

A painting method of a uniform painting apparatus for processing a clad steel sheet includes the steps of:

the method comprises the following steps that firstly, composite steel plates to be painted are stacked in a space surrounded by a storage plate and a baffle plate layer by layer, a first electric cylinder is controlled to enable a first suction disc to be located right above the composite steel plates to be painted, then a second electric cylinder is controlled to move the first suction disc downwards, the suction disc and the composite steel plates to be painted are extruded, the painted composite steel plates are made to be adsorbed on the lower surfaces of the first suction discs through the suction disc, the first electric cylinder is controlled to enable the first suction disc adsorbed with the composite steel plates to be located right above a material placing plate, the second electric cylinder is controlled to enable the composite steel plates on the first suction disc to be in contact with the upper surfaces of the material placing plate, the first air cylinder is controlled to enable a second baffle plate to fix the composite steel plates to be painted between the first baffle plate and the second baffle plate, and the first fine material;

secondly, placing the paint coating to be sprayed into a stirring barrel, starting a third motor connected with the stirring shaft, and driving a stirring paddle to fully stir the paint coating in the stirring barrel;

the third step, a second motor is started, the second motor drives a second threaded rod to rotate, through meshing transmission among bevel gears, a third threaded rod rotates, the second threaded rod rotates to drive a third sliding block arranged on the second threaded rod to move along the axial direction of the second threaded rod, the third threaded rod rotates to drive a first connecting plate arranged on the third threaded rod to move along the axial direction of the third threaded rod, so that a spray head moves along the left-right direction under the driving of the second motor, a composite steel plate to be painted moves along the front-back direction, and a control valve of the spray head is started, so that paint is uniformly sprayed to the surface of the composite steel plate through the spray head;

and fourthly, after painting is finished, after the surface of the composite steel plate is dried, firstly controlling the first air cylinder to enable the second baffle to loosen the composite steel plate, then controlling the third electric cylinder to enable the second material sucking disc to be positioned right above the painted composite steel plate, controlling the fourth electric cylinder to enable the second material sucking disc to suck the painted composite steel plate, and controlling the third electric cylinder and the fourth electric cylinder again to transfer the painted composite steel plate out, so that the painting operation of the composite steel plate is finished.

The invention has the beneficial effects that:

according to the invention, through the arrangement of the material moving device, the feeding and discharging processes of the composite steel plate can be automatically completed, the whole process is automatic, and the processing efficiency can be effectively improved; the arrangement of the spraying device enables one motor to simultaneously control the movement of the coating nozzle in the left-right direction and the movement of the composite steel plate to be painted in the front-back direction, so that the spraying device is easy to control, can effectively save energy, and can achieve the effect of uniform spraying by taking the composite steel plate as a reference, namely the nozzle moves at a constant speed in two directions along the horizontal direction; in addition, the paint coating is fully stirred before spraying, and is kept in a stirring state in the spraying process, so that the phenomenon of bottom sinking or floating of the coating raw material can be effectively avoided, and the spraying uniformity of the composite steel plate is improved in the aspect of spraying the raw material; the painting device can complete the operations of feeding, painting and transferring, can realize the uniformity of the spraying effect in the aspects of spraying mode and spraying raw materials, has good painting effect and high painting efficiency, and is suitable for the painting processing operation of the surface of the composite steel plate.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a uniform painting apparatus for processing a clad steel sheet according to the present invention;

FIG. 2 is a schematic structural diagram of a carrier body of an even painting device for processing composite steel plates according to the present invention;

FIG. 3 is a schematic structural diagram of a carrier body of an even painting apparatus for processing a clad steel plate according to the present invention;

FIG. 4 is a schematic structural diagram of a material moving device of a uniform painting device for processing a clad steel plate according to the present invention;

FIG. 5 is a schematic view of a portion of the structure of FIG. 4;

FIG. 6 is a schematic view of a portion of the structure of FIG. 4;

FIG. 7 is a schematic view of a portion of the structure of FIG. 4;

FIG. 8 is a schematic structural diagram of a material moving device of a uniform painting device for processing a clad steel plate according to the present invention;

FIG. 9 is a partial structural view of a uniform painting apparatus for processing a clad steel sheet according to the present invention;

FIG. 10 is a schematic structural view of a spray coating apparatus of a uniform painting apparatus for processing a clad steel sheet according to the present invention;

FIG. 11 is a schematic view of a portion of the structure of FIG. 10;

fig. 12 is a partial structural view of fig. 10.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments 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.

Referring to fig. 1-12, an apparatus for uniformly painting composite steel sheets, as shown in fig. 1, includes a frame body 1, and a material moving device 2 and a spraying device 3 mounted on the frame body 1;

specifically, as shown in fig. 2 and 3, the carrying frame body 1 includes a carrying base plate 11, and the lower surface of the carrying base plate 11 is provided with universal wheels, so that the whole device can be moved conveniently; a first C-shaped plate 12, a first sliding frame 13 and a second C-shaped plate 14 are fixed on the upper surface of the bearing bottom plate 11, and the first C-shaped plate 12 and the second C-shaped plate 14 are respectively positioned at two sides of the first sliding frame 13; the first sliding frame 13 comprises two first vertical plates 1301 which are arranged in parallel, wherein two first transverse plates 1302 and two second transverse plates 1303 are vertically fixed on the surface, facing the first C-shaped plate 12, of one first vertical plate 1301, a first threaded rod 1304 arranged in the vertical direction is fixed between the two transverse plates, a first sliding block 1305 is mounted on the first threaded rod 1304, specifically, a threaded through hole matched with the first threaded rod 1304 is formed in the surface of the first sliding block 1305, a first motor is fixed at the upper end of the first threaded rod 1304, and the first motor drives the first sliding block to rotate; a limiting strip 1306 arranged in the vertical direction is fixed on the surface, facing the first C-shaped plate 12, of the other first vertical plate 1301, a second sliding block 1307 is installed on the limiting strip 1306, the second sliding block 1307 is in sliding fit with the limiting strip 1306, and the second sliding block 1307 is flush with the first sliding block 1305; a third transverse plate 15 is fixed at the edge position of the second C-shaped plate 14, it should be noted that a material storage plate 16 is also fixed on the upper surface of the bearing bottom plate 11, a plurality of stop rods are fixed at the edge position of the surface of the material storage plate 16 along the vertical direction, and the composite steel plate to be painted is stacked in a space enclosed by the material storage plate 16 and the stop rods;

as shown in fig. 4, the material moving device 2 comprises a feeding mechanism 21, an operating mechanism 22 and a transfer mechanism 23, specifically, as shown in fig. 5, the feeding mechanism 21 comprises a first electric cylinder 2101, the first electric cylinder 2101 is fixed on the lower surface of the third transverse plate 15, a second electric cylinder 2102 is fixed on the output end of the first electric cylinder 2101, the second electric cylinder 2102 is arranged in the vertical direction, the output end faces downward, a first suction disc 2103 is fixed on the output end of the second electric cylinder 2102, a suction disc is fixed on the lower surface of the first suction disc 2103, the first suction disc 2103 is positioned right above the composite steel plate to be painted through the first electric cylinder 2101, the second electric cylinder 2102 is controlled to move the first suction disc 2103 downward, and the suction disc is pressed between the composite steel plate to be painted, so that the painted composite steel plate is adsorbed on the lower surface of the first suction disc 2103 through the suction disc 2101; as shown in fig. 6, the operating mechanism 22 includes a material placing plate 2201, an L-shaped plate 2202 is fixed on an end side of an upper surface of the material placing plate 2201, a first connecting plate 2203 is fixed on an outer side surface of the L-shaped plate 2202, and a second threaded through hole 2204 is formed in a surface of the first connecting plate 2203; a first baffle 2205 and a third vertical plate 2206 are fixed on the upper surface of the material placing plate 2201, a first air cylinder 2207 is fixed on the surface of the third vertical plate 2206, a second baffle 2208 is fixed on the piston end of the first air cylinder 2207, when the composite steel plate to be painted is placed on the material placing plate 2201, and the first air cylinder 2207 is controlled to enable the second baffle 2208 to fix the composite steel plate to be painted between the first baffle 2205 and the second baffle 2208; the transfer mechanism 23 comprises a third electric cylinder 2301, the third electric cylinder 2301 is fixed to the lower surface of the transverse plate of the first C-shaped plate 12 through a connecting block 2302, a fourth electric cylinder 2303 is fixed to the piston end of the third electric cylinder 2301, the fourth electric cylinder 2303 is arranged in the vertical direction with the piston end facing downward, a second suction tray 2304 is fixed to the piston end of the fourth electric cylinder 2303, and a plurality of suction discs are fixed to the lower surface of the second suction tray 2304, so that the painted composite steel plate is transferred out of the operating mechanism 22 similarly to the principle of the feeding mechanism 21;

as shown in fig. 9-11, the spraying device 3 includes a supporting mechanism 31 and a linkage mechanism 32 mounted on the supporting mechanism 31, specifically, the supporting mechanism 31 includes a supporting plate 3101, the supporting plate 3101 is fixed on the surfaces of a first sliding block 1305 and a second sliding block 1307, two opposite fourth vertical plates 3102 are fixed on the other surface of the supporting plate 3101, a second threaded rod 3103 is mounted on the fourth vertical plate 3102 in a penetrating manner, the second threaded rod 3103 is rotatably connected with the fourth vertical plate 3102, a first bevel gear 3104 is fixed on the second threaded rod 3103, the first bevel gear 3104 is located in a box 3105, a third threaded rod 3106 is further mounted on the other surface of the box 3105 in a penetrating manner, a second bevel gear 3107 is fixed on one end of the third threaded rod 3106, the second bevel gear 3107 is meshed with the first bevel gear 3104, it should be noted that a second motor is connected to one end of the second threaded rod 3103, and the third threaded rod 3106 is threadedly engaged with the; the linkage mechanism 32 comprises a third sliding block 3201, the third sliding block 3201 is in threaded fit with a second threaded rod 3103, a limiting strip is fixed on the upper and lower surfaces of the third sliding block 3201 and plays a limiting role, so that the third sliding block 3201 moves axially under the rotation action of the second threaded rod 3103, a fifth vertical plate 3202 is fixed on the surface of the third sliding block 3201, a bearing plate 3203 is vertically fixed on the surface of the fifth vertical plate 3202, a stirring barrel 3204 is fixed on the upper surface of the bearing plate 3203, paint is placed in the stirring barrel 3204, a third C-shaped plate 3205 is fixed on the surface of the bearing plate 3203, a stirring shaft 3206 is installed on the surface of a transverse plate of the third C-shaped plate 3205 in a penetrating manner, a third motor is connected with one end of the stirring shaft 3206, and a stirring paddle is fixed at the other; it should be noted that a bottom plate of the stirring barrel 3206 is provided with a spray head 3208, the spray head 3208 penetrates through the bearing plate 3203 and vertically faces downwards, and the surface painting operation is performed on the composite steel plate to be painted;

the working principle and the mode of the painting device are as follows:

firstly, stacking the composite steel plates to be painted in a space surrounded by the storage plates 16 and the baffles layer by layer, firstly controlling the first electric cylinder 2101 to enable the first suction disc 2103 to be positioned right above the composite steel plates to be painted, then controlling the second electric cylinder 2102 to move the first suction disc 2103 downwards and enable the suction discs to be extruded with the composite steel plates to be painted, enabling the painted composite steel plates to be adsorbed on the lower surfaces of the first suction discs 2103 through the suction discs, then controlling the first electric cylinder 2101 to enable the first suction disc 2103 adsorbed with the composite steel plates to be positioned right above the material placing plates 2201, controlling the second electric cylinder 2102 to enable the composite steel plates on the first suction discs 2103 to be in contact with the upper surfaces of the material placing plates 2201, and then controlling the first air cylinder 2207 to enable the second baffles 2208 to fix the composite steel plates to be painted between the first baffles 2205 and the second baffles 2208 so as to enable the first fine material discs 2103 to return to the position;

secondly, placing the paint coating to be sprayed into a stirring barrel 3204, starting a third motor connected with a stirring shaft 3206, and driving a stirring paddle to fully stir the paint coating in the stirring barrel 3204;

third, the second motor is started, the second motor drives the second threaded rod 3103 to rotate, the third threaded rod 3106 rotates through the meshing transmission between the bevel gears, the second threaded rod 3103 rotates to drive the third slider 3201 mounted on the second threaded rod 3103 to move axially, the third threaded rod 3106 rotates to drive the first connecting plate 2203 mounted on the third threaded rod 3106 to move axially (it should be noted that, not shown in the figures, a limiting rod is fixed on the surface of the box 3105, a circular through hole matched with the limiting rod is formed on the surface of the second connecting plate 2203 to play a role in limiting, so that the first connecting plate 2203 moves axially when the third threaded rod 3106 rotates), under the driving of the second motor, the spray head 3208 moves in the left-right direction, the composite steel plate to be painted moves in the front-back direction, and a control valve of the spray head 3208 is opened, so that the paint is uniformly sprayed to the surface of the composite steel plate by the spray head;

fourthly, after painting is finished and the surface of the composite steel plate is dried, firstly controlling the first air cylinder 2207 to enable the second baffle 2208 to loosen the composite steel plate, then controlling the third electric cylinder 2301 to enable the second material sucking disc 2304 to be positioned right above the painted composite steel plate, controlling the fourth electric cylinder 2203 to enable the second material sucking disc 2304 to suck the painted composite steel plate, and controlling the third electric cylinder 2301 and the fourth electric cylinder 2203 again to transfer the painted composite steel plate out, thereby finishing the painting operation of the composite steel plate;

according to the invention, through the arrangement of the material moving device, the feeding and discharging processes of the composite steel plate can be automatically completed, the whole process is automatic, and the processing efficiency can be effectively improved; the arrangement of the spraying device enables one motor to simultaneously control the movement of the coating nozzle in the left-right direction and the movement of the composite steel plate to be painted in the front-back direction, so that the spraying device is easy to control, can effectively save energy, and can achieve the effect of uniform spraying by taking the composite steel plate as a reference, namely the nozzle moves at a constant speed in two directions along the horizontal direction; in addition, the paint coating is fully stirred before spraying, and is kept in a stirring state in the spraying process, so that the phenomenon of bottom sinking or floating of the coating raw material can be effectively avoided, and the spraying uniformity of the composite steel plate is improved in the aspect of spraying the raw material; the painting device can complete the operations of feeding, painting and transferring, can realize the uniformity of the spraying effect in the aspects of spraying mode and spraying raw materials, has good painting effect and high painting efficiency, and is suitable for the painting processing operation of the surface of the composite steel plate.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.