A spraying device and a spraying process thereof

Abstract

The invention relates to the field of spraying technology, and discloses a spraying device and a spraying process thereof, wherein the spraying device comprises a spraying box, a material transfer mechanism, a spraying mechanism, and a water curtain mechanism, wherein a spraying chamber is formed in the spraying box, and a material feed port is opened on the front of the spraying box; the spraying device is provided with a spraying box, and a water curtain mechanism is provided in the spraying box, so that the sprayed paint can be absorbed during the spraying process to reduce the pollution to the external environment; then, by providing a material transfer mechanism, loading and unloading of workpieces can be realized, and the workpieces can be transported to the spraying mechanism, and then the workpieces are subjected to all-round spraying processing by the spraying mechanism, and the overall structure has a high degree of automation, and is practical and reliable.

Description

Technical Field

[0001] The invention relates to the field of spraying technology, in particular to a spraying device and a spraying process thereof. Background Art

[0002] Spraying is a coating method in which a spray gun or a disc atomizer is used to disperse the spray into uniform and fine droplets with the help of pressure or centrifugal force, and then the droplets are applied to the surface of the object to be coated. The production and processing of some metal parts involve cutting, drilling, grooving, grinding and polishing, spraying, etc. In the existing spraying devices, usually only the upper surface of the workpiece can be sprayed, and the bottom surface of the workpiece cannot be sprayed. It is impossible to spray the workpiece in all directions, and the spraying quality is poor. The publication number is CN107716179A, which discloses an omnidirectional sprayer, including a base, a left crossbeam, a right crossbeam, a longitudinal moving pair, a transverse moving pair, and a spray rod. A column is respectively provided at the four corners of the base, and the column supports four crossbeams including the left crossbeam and the right crossbeam. The left crossbeam and the right crossbeam are provided with two identical longitudinal moving pairs in parallel, and a transverse plate is provided between the longitudinal moving pairs. The upper half of the longitudinal moving pair is sleeved on the transverse plate, and the lower half is sleeved on the crossbeam. A transverse moving pair is provided on the transverse plate, and the front half of the transverse moving pair is sleeved on the transverse plate, and the rear half is sleeved on the spray rod. A sawtooth is provided on one side of the spray rod. The invention changes the rotation direction of the motor by controlling the positive and negative conversion of the current passed to the motor, and the moving pair is moved when the motor rotates through the meshing of the gear and the tooth groove. The operation is convenient, the structure is simple, the manufacturing cost is reduced, and the manufacturing materials are saved. However, the sprayer has a low degree of automation and low processing efficiency. Summary of the invention

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a practical, reliable, and highly automated spraying device and a spraying process thereof.

[0004] To achieve the above-mentioned purpose, the solution provided by the present invention is: a spraying device, including a spray box, a material transfer mechanism, a spraying mechanism, and a water curtain mechanism, a spraying chamber is formed in the spray box, a feed port is opened on the front of the spray box, the feed port is connected to the spraying chamber, the water curtain mechanism is arranged on the side wall of the spraying chamber, the material transfer mechanism is used to input the workpiece into the spraying chamber or output the spraying chamber, the spraying mechanism is arranged in the spraying chamber, and the spraying mechanism is used to perform all-round spraying processing on the workpiece.

[0005] The beneficial effects of the present invention are: achieving all-round spraying processing on the workpiece. The spraying device is provided with a spray box, and a water curtain mechanism is provided in the spray box. The sprayed paint can be absorbed during the spraying process to reduce pollution to the external environment. Then, a material transfer mechanism is provided to achieve loading and unloading of the workpiece, and the workpiece is transported to the spraying mechanism. The workpiece is then subjected to all-round spraying processing by the spraying mechanism. The overall structure has a high degree of automation and is practical and reliable.

[0006] Furthermore, the water curtain mechanism comprises multiple rows of nozzles, and multiple rows of nozzles are respectively arranged in the middle of the three side walls of the spray chamber, and each row of nozzles is used to spray downward to form a water curtain. After adopting the above structure, the present invention realizes the formation of a water curtain.

[0007] Furthermore, a plurality of drainage holes are provided at the bottom of the spray chamber. After the present invention adopts the above structure, the liquid sprayed from the spray head can be drained away.

[0008] Furthermore, the material transfer mechanism includes a rotating disk and a plurality of fixed frames. A working platform is provided at the feed port of the spray box. The working platform is rotatably connected to the rotating disk. A plurality of fixed frames are provided on the rotating disk. The fixed frames are arranged in a ring with equal intervals. The fixed frames are used to place workpieces. A spraying station, a loading and unloading station, and two condensing stations are provided on the rotating disk. The condensing station is located between the spraying station and the loading and unloading station. After the present invention adopts the above structure, loading and unloading and material transfer of workpieces are realized.

[0009] Furthermore, the material transfer mechanism further comprises a driving motor, the driving motor is connected to a driving reduction box, and the driving reduction box is connected to the rotating disk. After the present invention adopts the above structure, the rotating disk is driven to rotate.

[0010] Furthermore, two cooling air blowers are arranged on the working platform, and one of the cooling air blowers is aimed at a fixed frame in the condensation station. After the present invention adopts the above structure, it can blow cold air to the workpiece after spraying to accelerate the condensation of the sprayed paint.

[0011] Furthermore, the fixed frame is provided with bases on the left and right sides respectively, and the bases are provided with lifting cylinders, the lifting cylinders are arranged vertically, the lifting cylinders are upwardly connected to a lifting seat, the lifting seat is provided with a translation guide rail, the translation guide rail is slidably connected to a translation seat, the translation seat is provided with a first servo motor, the first servo motor is connected to a material clamping hand, and the material clamping hand is used to clamp the workpiece on the fixed frame. After the present invention adopts the above structure, it can not only clamp the workpiece, but also drive the workpiece to flip.

[0012] Furthermore, the number of the translation guide rails is two, the two translation guide rails are spaced apart from each other, the two translation guide rails are parallel, and the two translation guide rails are slidably connected to the translation seat together.

[0013] Furthermore, the clamping hand includes a clamping frame, a pneumatic finger, and two clamping claws, the first servo motor is connected to the clamping frame, the pneumatic finger is arranged on the clamping frame, the pneumatic finger is respectively connected to the two clamping claws, and the two clamping claws are used to clamp the workpiece together. After the present invention adopts the above structure, the pneumatic finger drives the two clamping claws to approach each other to achieve the joint clamping of the workpiece.

[0014] Furthermore, a translation cylinder is provided on the lifting seat, and the translation cylinder is connected to the translation seat for driving the translation seat to approach or move away from the fixed frame. After adopting the above structure, the present invention can drive the translation seat to approach or move away from the fixed frame, thereby driving the pneumatic finger to approach or move away from the fixed frame.

[0015] Furthermore, the fixing frame is provided with a fixing groove, and the fixing groove is used for placing the workpiece.

[0016] Furthermore, an ejection cylinder is provided at the bottom of the fixing frame, the ejection cylinder is vertically arranged, the ejection cylinder is upwardly connected to an ejection block, the fixing groove is provided with an ejection hole, the ejection hole passes through the fixing frame downward, and the ejection cylinder is used to drive the ejection block to extend or retract into the ejection hole. After the present invention adopts the above structure, it is convenient for the workpiece to leave the fixing groove.

[0017] Furthermore, a sliding guide rail is provided in the spray chamber, the sliding guide rail extends along the width direction of the spray chamber, a sliding seat is slidably connected to the sliding guide rail, a mechanical arm is provided on the sliding seat, the mechanical arm is connected to a spray frame, two spray guns are provided on the spray frame, and the two spray guns are used to spray the workpiece in the spray station. After the present invention adopts the above structure, it can drive the mechanical arm to translate left and right, so as to spray the workpiece in all directions.

[0018] Furthermore, the working platform is provided with an operation slot, and the loading and unloading station is located directly above the operation slot. The present invention adopts the above structure to facilitate the staff to operate in the operation slot to put the workpiece into the fixed frame in the loading and unloading station, or to take the workpiece out of the fixed frame in the loading and unloading station.

[0019] Furthermore, the spraying frame includes a connecting frame and a connecting rod, the connecting frame is connected to the middle part of the connecting rod, two sliding seats are mounted on the connecting rod, the two sliding seats are spaced apart from each other, and the spraying gun is mounted on the sliding seat. After the present invention adopts the above structure, the position of the spraying gun can be adjusted.

[0020] Furthermore, the sliding seat is threadedly connected with a first locking screw, the first locking screw abuts against and presses the connecting rod, and the first locking screw is used to lock and fix the sliding seat on the connecting rod, wherein the first locking screw is sleeved with a first rotating handle. After the present invention adopts the above structure, the sliding seat is locked and fixed on the connecting rod.

[0021] Furthermore, the connecting frame is provided with an adjustment slot, the adjustment slot extends along the length direction of the connecting frame, a second locking screw is slidably connected to the adjustment slot, the second locking screw is downwardly connected to the middle part of the connecting rod, and the second locking screw is used to lock and fix the connecting rod to the connecting frame, wherein a second rotating handle is mounted on the second locking screw. After the present invention adopts the above structure, the position of the connecting rod on the connecting frame can be adjusted.

[0022] Furthermore, the side wall of the spray box is provided with a second servo motor, a servo screw is rotatably connected in the spray chamber, the servo screw is parallel to the sliding guide rail, the servo screw is threadedly connected to the sliding seat, and the second servo motor is connected to the servo screw. After the present invention adopts the above structure, it can drive the sliding seat and the mechanical arm to move.

[0023] The present invention also includes a spraying process, comprising the following steps:

[0024] S1. Place the workpiece in the fixed groove of the fixed frame in the loading and unloading station, then start the drive motor, which drives the rotating disk to rotate, and move the fixed frame of the workpiece from the loading and unloading station through the condensation station to the spraying station;

[0025] S2. Start the second servo motor and the robotic arm respectively, the second servo motor drives the robotic arm to move left and right, and the robotic arm drives the two spray guns to move to perform all-round spraying processing on the upper half of the workpiece in the spraying station;

[0026] S3. After the upper half of the workpiece is sprayed, the drive motor is controlled to drive the rotating disk to rotate a set number of times until the paint on the upper half of the workpiece solidifies;

[0027] S4. Start the lifting cylinders, translation cylinders, first servo motor, pneumatic fingers on the left and right sides of the fixed frame respectively, and start the ejection cylinder at the bottom of the fixed frame, the lower half of the workpiece is turned 180° upward, and then falls back into the fixed groove of the fixed frame;

[0028] S5. Control the second servo motor and the robotic arm. The second servo motor drives the robotic arm to move left and right. The robotic arm drives the two spray guns to move the unsprayed part of the workpiece in the spraying station to perform all-round spraying processing;

[0029] S6. After the spraying is completed, the driving motor is controlled to drive the rotating disk to rotate the set number of circles until the paint on the workpiece solidifies, and then the fixed frame with the workpiece is transported to the loading and unloading station, and then the workpiece after spraying is output. Through the above steps, the present invention realizes loading, automatic material transfer, and automatic spraying of the workpiece, and after spraying the upper half of the workpiece, after the paint solidifies, the lifting cylinder, the translation cylinder, the first servo motor, the pneumatic finger, and the ejection cylinder are used to realize 180° flipping of the workpiece, and then the remaining part of the workpiece is sprayed, so as to realize all-round processing of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The overall structure of the present invention is three-dimensional Figure 1 .

[0031] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0032] Figure 3 The overall structure of the present invention is three-dimensional Figure 2 .

[0033] Figure 4 The overall structure of the present invention is three-dimensional Figure 3 .

[0034] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0035] Among them, 1 is a spray box, 11 is a spray chamber, 12 is a feed port, 13 is a drain hole, 2 is a working platform, 21 is a rotating disk, 211 is a driving motor, 22 is a fixed frame, 221 is a fixed slot, 222 is an ejection hole, 223 is an ejection cylinder, 224 is an ejection block, 23 is a base, 231 is a guide rod, 24 is a lifting cylinder, 241 is a lifting seat, 25 is a translation guide rail, 251 is a translation seat, 26 is a translation cylinder, 27 is a first servo motor, 28 is a clamping frame, 281 is a pneumatic finger, 282 is the clamping claw, 29 is the cooling fan, 2a is the loading and unloading station, 2b is the spraying station, 2c is the condensing station, 31 is the sliding guide rail, 311 is the sliding seat, 32 is the second servo motor, 321 is the servo screw, 33 is the mechanical arm, 34 is the spraying frame, 341 is the connecting frame, 3411 is the adjusting slot, 342 is the connecting rod, 343 is the sliding seat, 344 is the first locking screw, 3441 is the first rotating handle, 345 is the second locking screw, 3451 is the second rotating handle, 35 is the spray gun, and 41 is the nozzle. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] See attached Figure 1 To Attachment Figure 5 As shown, a spraying device includes a spray box 1, a material transfer mechanism, a spraying mechanism, and a water curtain mechanism. A spraying chamber 11 is formed in the spray box 1. A feed port 12 is opened on the front of the spray box 1, and the feed port 12 is connected to the spraying chamber 11. The water curtain mechanism is arranged on the side wall of the spraying chamber 11. The material transfer mechanism is used to input the workpiece into the spraying chamber 11 or output the spraying chamber 11. The spraying mechanism is arranged in the spraying chamber 11, and the spraying mechanism is used to perform all-round spraying processing on the workpiece.

[0039] In this embodiment, the water curtain mechanism includes multiple rows of nozzles 41. Multiple rows of nozzles 41 are respectively arranged in the middle of three side walls of the spraying chamber 11. Each row of nozzles 41 is used to spray downward to form a water curtain.

[0040] In this embodiment, a plurality of drainage holes 13 are opened at the bottom of the spray chamber 11 , and the plurality of drainage holes 13 are arranged in an array.

[0041] In this embodiment, the material transfer mechanism includes a rotating disk 21 and a plurality of fixed frames 22. A working platform 2 is arranged at the feed port 12 of the spray box 1. The working platform 2 is rotatably connected to the rotating disk 21. A plurality of fixed frames 22 are arranged on the rotating disk 21. The plurality of fixed frames 22 are arranged in a ring at equal intervals. The fixed frames 22 are used to place workpieces. A spraying station 2b, a loading and unloading station 2a, and two condensation stations 2c are arranged on the rotating disk 21. The condensation station 2c is located between the spraying station 2b and the loading and unloading station 2a.

[0042] In this embodiment, the material transfer mechanism further includes a driving motor 211 , the driving motor 211 is connected to a driving reduction box, and the driving reduction box is connected to the rotating disk 21 .

[0043] In this embodiment, two cooling fans 29 are provided on the working platform 2, and one cooling fan 29 is directed toward the fixing frame 22 in one condensation station 2c.

[0044] In this embodiment, the working platform 2 is provided with an operating groove for accommodating staff members. At the same time, part of the rotating disk 21 and the loading and unloading station 2a are located directly above the operating groove, so that the staff members can operate in the operating groove to place the workpiece into the fixed frame 22 in the loading and unloading station 2a, or take the workpiece out of the fixed frame 22 in the loading and unloading station 2a, which is convenient for the staff members to operate.

[0045] In this embodiment, bases 23 are respectively provided on the left and right sides of the fixed frame 22, and lifting cylinders 24 are provided on the base 23. The lifting cylinders 24 are vertically arranged, and the lifting cylinders 24 are upwardly connected to a lifting seat 241. A translation guide rail 25 is provided on the lifting seat 241, and a translation seat 251 is slidably connected to the translation guide rail 25. A first servo motor 27 is provided on the translation seat 251, and the first servo motor 27 is connected to a clamping hand, which is used to clamp the workpiece on the fixed frame 22; the number of the translation guide rails 25 is two, and the two translation guide rails 25 are arranged at intervals on the left and right, and the two translation guide rails 25 are parallel, and the two translation guide rails 25 are slidably connected to the translation seat 251 together.

[0046] In this embodiment, the clamping arm includes a clamping frame 28, a pneumatic finger 281, and two clamping jaws 282. The first servo motor 27 is connected to the clamping frame 28. The pneumatic finger 281 is arranged on the clamping frame 28. The pneumatic finger 281 is respectively connected to the two clamping jaws 282, and the two clamping jaws 282 are used to clamp the workpiece together.

[0047] In this embodiment, the first servo motor 27 is arranged horizontally, and the clamping arm is also arranged horizontally. Thus, after the first servo motor 27 is connected to the clamping arm, it can drive the clamping arm to rotate horizontally, thereby driving the clamping arm to flip, thereby driving the workpiece to flip 180°.

[0048] In this embodiment, a plurality of guide rods 231 are disposed on the base 23 . The plurality of guide rods 231 are respectively disposed vertically. The plurality of guide rods 231 respectively pass upward through the lifting seat 241 to guide the lifting seat 241 to move up and down.

[0049] In this embodiment, a translation cylinder 26 is disposed on the lifting seat 241 , and the translation cylinder 26 is connected to the translation seat 251 for driving the translation seat 251 to move closer to or away from the fixing frame 22 .

[0050] In this embodiment, the fixing frame 22 is provided with a fixing groove 221 , and the fixing groove 221 is used for placing a workpiece.

[0051] In this embodiment, the fixing groove 221 is formed on the top surface of the fixing frame 22 , and a groove is formed on the lower side of the fixing frame 22 , and the groove is used to accommodate the ejection cylinder 223 .

[0052] In this embodiment, an ejection cylinder 223 is provided at the bottom of the fixed frame 22, and the ejection cylinder 223 is vertically arranged. The ejection cylinder 223 is upwardly connected to an ejection block 224, and the fixed groove 221 is provided with an ejection hole 222. The ejection hole 222 penetrates the fixed frame 22 downward, and the ejection block 224 is located in the ejection hole 222. The ejection cylinder 223 is used to drive the ejection block 224 to extend or retract into the ejection hole 222.

[0053] In this embodiment, a sliding guide rail 31 is provided in the spray chamber 11, and the sliding guide rail 31 extends along the width direction of the spray chamber 11. A sliding seat 311 is slidably connected to the sliding guide rail 31. The sliding seat 311 is provided with a mechanical arm 33. The mechanical arm 33 is connected to a spray rack 34. Two spray guns 35 are provided on the spray rack 34. The two spray guns 35 are used to spray the workpiece in the spray station 2b.

[0054] In this embodiment, a second servo motor 32 is disposed on the side wall of the spray box 1 , a servo screw 321 is rotatably connected in the spray chamber 11 , the servo screw 321 is threadedly connected to the sliding seat 311 , and the second servo motor 32 is connected to the servo screw 321 .

[0055] In this embodiment, the spraying frame 34 includes a connecting frame 341 and a connecting rod 342. The connecting frame 341 is connected to the middle part of the connecting rod 342. Two sliding seats 343 are mounted on the connecting rod 342. The two sliding seats 343 are spaced apart from each other. The spraying gun 35 is arranged on the sliding seat 343. A first locking screw 344 is threadedly connected to the sliding seat 343. The first locking screw 344 abuts against and presses the connecting rod 342. The first locking screw 344 is used to lock and fix the sliding seat 343 on the connecting rod 342. The first locking screw 344 is mounted with a first rotating handle. 3441; an adjusting slot 3411 is provided on the connecting frame 341, and the adjusting slot 3411 extends along the length direction of the connecting frame 341, and a second locking screw 345 is slidably connected to the adjusting slot 3411, and the second locking screw 345 is downwardly connected to the middle part of the connecting rod 342, and the second locking screw 345 is used to lock and fix the connecting rod 342 on the connecting frame 341, wherein the second locking screw 345 is provided with a second rotating handle 3451; through the above structure, the positions of the two spray guns 35 can be adjusted according to actual production conditions, and spraying of different processing techniques can be carried out.

[0056] In this embodiment, the adjustment slot 3411 is perpendicular to the connecting rod 342 .

[0057] In this embodiment, a water collecting chamber is formed in the spray box 1, and a plurality of drainage holes 13 are respectively connected downward to the water collecting chamber, and the water collecting chamber is used to collect water sprayed by the water curtain mechanism.

[0058] In this embodiment, in order to improve the environmental protection effect, a filter pool can be set up, the water inlet of the filter pool is connected to the water outlet of the water collection chamber, the filter pool is used to filter the paint in the water collected by the water collection chamber, and then the water outlet of the filter pool is connected to the multiple rows of nozzles 41 of the water curtain mechanism, so that the liquid filtered by the filter pool can be transported to the multiple rows of nozzles 41 for spraying, so as to realize the recycling and reuse of water and the overall environmental protection; wherein, the water transportation can be realized by setting a suction pump.

[0059] In this embodiment, the robot arm 33 can move in the X, Y, and Z axis directions, so that the spraying rack 34 and the paint gun 35 on the spraying rack 34 can move in multiple directions, so that the paint gun 35 can be aimed at the workpiece from all directions, thereby spraying the workpiece in all directions.

[0060] The spraying process of this embodiment includes the following steps:

[0061] S1. Place the workpieces one by one in the fixing groove 221 of the fixing frame 22 in the loading and unloading station 2a, and then start the driving motor 211, the driving motor 211 drives the driving reduction box to work, and the driving reduction box drives the rotating disk 21 to rotate, and the fixing frame 22 of the workpiece passes from the loading and unloading station 2a through the condensation station 2c and enters the spraying station 2b.

[0062] S2. Start the second servo motor 32 and the robot arm 33 respectively. The second servo motor 32 drives the servo screw 321 to rotate, so as to drive the sliding seat 311 to translate left and right, thereby driving the robot arm 33 to translate left and right. The robot arm 33 drives the two spray guns 35 to move in multiple directions, and performs all-round spraying processing on the upper half of the workpiece in the spraying station 2b.

[0063] S3. After the upper half of the workpiece is sprayed, the drive motor 211 is controlled to drive the rotating disk 21 to rotate, so that the sprayed workpiece passes through the condensation station 2c, the loading and unloading station 2a, the condensation station 2c, and the spraying station 2b in sequence to complete a circle of rotation, and then the rotating disk is driven to rotate a set number of circles until the paint on the upper half of the workpiece solidifies; wherein, when the workpiece passes through the condensation station 2c, the cold air blower 29 is started, and the cold air blower 29 blows air to the workpiece to accelerate the solidification of the paint on the workpiece.

[0064] S4. The lifting cylinders 24, the translation cylinder 26, the first servo motor 27, and the pneumatic fingers 281 on the left and right sides of the fixed frame 22 are respectively started, and the ejection cylinder 223 at the bottom of the fixed frame 22 is started. The piston rod of the ejection cylinder 223 is extended to slightly lift the workpiece to facilitate the subsequent clamping of the workpiece. The piston rod of the translation cylinder 26 is extended to drive the translation seat 251 and the pneumatic fingers 281 to approach the workpiece on the fixed frame 22. The pneumatic fingers 281 drive the two clamping claws 282 to clamp the workpiece;

[0065] After clamping the workpiece, the lifting cylinder 24 is started, and the piston rod of the lifting cylinder 24 is extended to push the lifting seat 241 and the pneumatic finger 281 to move upward, thereby driving the workpiece to move upward and leave the fixed groove 221, and then the first servo motor 27 is started, and the first servo motor 27 drives the pneumatic finger 281 to rotate, so as to drive the workpiece to rotate, so that the lower half of the workpiece is turned 180° upward, and then the lifting cylinder 24, the translation cylinder 26, the first servo motor 27, the pneumatic finger 281, and the ejection cylinder 223 are re-controlled to make the workpiece fall back into the fixed groove 221 of the fixed frame 22.

[0066] S5. Control the second servo motor 32 and the robot arm 33. The second servo motor 32 drives the robot arm 33 to move horizontally. The robot arm 33 drives the two spray guns 35 to move to perform all-round spray processing on the unsprayed part of the workpiece in the spraying station 2b.

[0067] S6. After spraying is completed, repeat the operation of step S3, control the drive motor 211, drive the rotating disk 21 to rotate a set number of circles until the paint on the workpiece solidifies, and then transport the fixed frame 22 with the workpiece to the loading and unloading station 2a, and then take the sprayed workpiece out of the fixed frame 22.

[0068] In this embodiment, when it is necessary to adjust the position of the spray gun 35, the corresponding first rotating handle 3441 and the second rotating handle 3451 are respectively turned to loosen the first locking screw 344 and the second locking screw 345, and then the second locking screw 345 is correspondingly driven to slide in the adjustment groove 3411 to drive the connecting rod 342 to move until it moves to the set position, and then the second locking screw 345 is retightened to fix the connecting rod 342, and synchronously, the corresponding sliding seat 343 is driven to slide on the connecting rod 342, thereby driving the spray gun 35 to move until it moves to the set position, and then the first locking screw 344 is retightened to fix the sliding seat 343 to adjust the position of the sliding seat 343.

[0069] In this embodiment, the workpiece is manually loaded, automatically transferred, and automatically sprayed in sequence. Specifically, the paint spray gun 35 is driven by the mechanical arm 33 to move to spray the upper half of the workpiece. After the paint is solidified, the workpiece is flipped 180 degrees by the lifting cylinder 24, the translation cylinder, the first servo motor, the pneumatic finger, and the ejection cylinder, and then the remaining part of the workpiece is sprayed, so that the workpiece is sprayed in all directions. After the processing is completed, the drive motor 211 is controlled to drive the rotating disk 21 to rotate, so as to move the processed workpiece to the loading and unloading station 2a, and then the ejection cylinder 223 at the bottom of the fixed frame 22 is controlled, and the piston rod of the ejection cylinder 223 is extended, and the workpiece is slightly lifted from the fixed frame 22, and finally the sprayed workpiece is taken out from the fixed frame 22. The whole spraying process has a high degree of automation, which reduces manual operation. The whole process only requires manual installation of the workpiece on the fixed frame 22 and removal of the workpiece from the fixed frame 22.

[0070] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any technician familiar with the art can use the above disclosed technical content to make more possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent and equivalent changes made according to the ideas of the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A spraying device, comprising a spraying box (1), a material transfer mechanism, a spraying mechanism, and a water curtain mechanism, characterized in that: A spray chamber (11) is formed in the spray box (1), a feed port (12) is opened on the front of the spray box (1), the feed port (12) is connected to the spray chamber (11), the water curtain mechanism is arranged on the side wall of the spray chamber (11), the material transfer mechanism is used to input the workpiece into the spray chamber (11) or output the spray chamber (11), the spray mechanism is arranged in the spray chamber (11), and the spray mechanism is used to perform all-round spray processing on the workpiece; The material transfer mechanism comprises a rotating disk (21) and a plurality of fixed frames (22); a working platform (2) is arranged at the material inlet (12) of the spray box (1); the working platform (2) is rotatably connected to the rotating disk (21); a plurality of fixed frames (22) are arranged on the rotating disk (21); the plurality of fixed frames (22) are arranged in a ring at equal intervals; the fixed frames (22) are used to place workpieces; a spraying station (2b), a loading and unloading station (2a), and two condensation stations (2c) are arranged on the rotating disk (21); the condensation station (2c) is located between the spraying station (2b) and the loading and unloading station (2a), so that the workpiece passes through the condensation station (2c), the loading and unloading station (2a), the condensation station (2c), and the spraying station (2b) in sequence to complete one circle of rotation; Bases (23) are respectively provided on the left and right sides of the fixed frame (22); a lifting cylinder (24) is provided on the base (23); the lifting cylinder (24) is arranged vertically; the lifting cylinder (24) is upwardly connected to a lifting seat (241); a translation guide rail (25) is provided on the lifting seat (241); a translation seat (251) is slidably connected to the translation guide rail (25); a first servo motor (27) is provided on the translation seat (251); the first servo motor (27) is connected to a material clamping hand; the material clamping hand is used to clamp a workpiece on the fixed frame (22); The material gripper comprises a material gripper frame (28), a pneumatic finger (281), and two clamping jaws (282); the first servo motor (27) is connected to the material gripper frame (28); the pneumatic finger (281) is arranged on the material gripper frame (28); the pneumatic finger (281) is respectively connected to the two clamping jaws (282); the two clamping jaws (282) are used to clamp a workpiece together; The lifting seat (241) is provided with a translation cylinder (26), and the translation cylinder (26) is connected to the translation seat (251) and is used to drive the translation seat (251) to move closer to or away from the fixed frame (22); The fixing frame (22) is provided with a fixing groove (221), and the fixing groove (221) is used to place a workpiece; an ejection cylinder (223) is provided at the bottom of the fixing frame (22), and the ejection cylinder (223) is arranged vertically, and the ejection cylinder (223) is upwardly connected to an ejection block (224); the fixing groove (221) is provided with an ejection hole (222), and the ejection hole (222) penetrates the fixing frame (22) downward, and the ejection cylinder (223) is used to drive the ejection block (224) to extend out of or retract into the ejection hole (222); A sliding guide rail (31) is arranged in the spray chamber (11), the sliding guide rail (31) extends along the width direction of the spray chamber (11), a sliding seat (311) is slidably connected to the sliding guide rail (31), a mechanical arm (33) is arranged on the sliding seat (311), the mechanical arm (33) is connected to a spray frame (34), two spray guns (35) are arranged on the spray frame (34), and the two spray guns (35) are used to spray the workpiece in the spray station (2b); a second servo motor (32) is arranged on the side wall of the spray box (1), a servo screw (321) is rotatably connected to the spray chamber (11), the servo screw (321) is parallel to the sliding guide rail (31), the servo screw (321) is threadedly connected to the sliding seat (311), and the second servo motor (32) is connected to the servo screw (321); The spraying frame (34) comprises a connecting frame (341) and a connecting rod (342). The connecting frame (341) is connected to the middle part of the connecting rod (342). Two sliding seats (343) are mounted on the connecting rod (342). The two sliding seats (343) are spaced apart from each other. A spraying gun (35) is arranged on the sliding seat (343). A first locking screw (344) is threadedly connected to the sliding seat (343). The first locking screw (344) abuts against and presses the connecting rod (342). The first locking screw (344) is used to lock and fix the sliding seat (343) on the connecting rod (342). The first locking screw (344) is mounted with a first rotating handle (3441); the connecting frame (341) is provided with an adjusting slot (3411), the adjusting slot (3411) extends along the length direction of the connecting frame (341), a second locking screw (345) is slidably connected to the adjusting slot (3411), the second locking screw (345) is downwardly connected to the middle part of the connecting rod (342), the second locking screw (345) is used to lock and fix the connecting rod (342) to the connecting frame (341), wherein the second rotating handle (3451) is mounted on the second locking screw (345).

2. A spraying device according to claim 1, characterized in that: The water curtain mechanism comprises a plurality of rows of spray heads (41), and the plurality of rows of spray heads (41) are respectively arranged in the middle of three side walls of the spray chamber (11), and each row of the spray heads (41) is used to spray downwards to form a water curtain.

3. A spraying device according to claim 2, characterized in that: The material transfer mechanism further comprises a drive motor (211), the drive motor (211) being connected to a drive reduction box, and the drive reduction box being connected to the rotating disk (21).

4. A spraying process of the spraying device according to claim 3, characterized in that: The following steps are involved: S1. Place the workpiece in the fixing groove (221) of the fixing frame (22) in the loading and unloading station (2a), and then start the driving motor (211), so that the driving motor (211) drives the rotating disk (21) to rotate, and move the fixing frame (22) of the workpiece from the loading and unloading station (2a) through the condensation station (2c) to the spraying station (2b); S2. The second servo motor (32) and the robotic arm (33) are respectively started, the second servo motor (32) drives the robotic arm (33) to move horizontally, and the robotic arm (33) drives the two spray guns (35) to move to perform all-round spraying processing on the upper half of the workpiece in the spraying station (2b); S3. After the upper half of the workpiece is sprayed, the drive motor (211) is controlled to drive the rotating disk (21) to rotate a set number of times until the spray paint on the upper half of the workpiece solidifies; S4. The lifting cylinders (24), the translation cylinders (26), the first servo motor (27), and the pneumatic fingers (281) on the left and right sides of the fixed frame (22) are respectively started, and the ejection cylinder (223) at the bottom of the fixed frame (22) is started, so that the lower half of the workpiece is turned 180 degrees upward and then falls back into the fixing groove (221) of the fixed frame (22); S5. Control the second servo motor (32) and the robotic arm (33), the second servo motor (32) drives the robotic arm (33) to move horizontally, and the robotic arm (33) drives the two spray guns (35) to move to perform all-round spraying processing on the unsprayed part of the workpiece in the spraying station (2b); S6. After the spraying is completed, the driving motor (211) is controlled to drive the rotating disk (21) to rotate a set number of times until the spray paint on the workpiece is solidified, and then the fixed frame (22) with the workpiece is transported to the loading and unloading station (2a), and then the sprayed workpiece is output.

Images