Reciprocating type automatic spraying equipment and method for workpiece paint spraying

Abstract

The invention discloses reciprocating type automatic spraying equipment and method for workpiece paint spraying, and belongs to the field of workpiece spraying, the reciprocating type automatic spraying equipment comprises an operation case, a paint spraying chamber is arranged in the operation case, the two ends of the operation case are each provided with a penetrating opening, and a belt conveyor used for conveying a workpiece to be painted is located on one side of the penetrating opening of the operation case. According to the reciprocating type automatic spraying equipment and method for workpiece paint spraying, the reciprocating type spraying component and the blowing component are arranged, so that integrated progressive spraying operation can be conducted on the three transverse and longitudinal side faces of the workpiece to be painted, no dead corner exists in spraying, and the spraying efficiency is high; the air blowing component can be triggered in the paint spraying process to blow air so as to accelerate air drying after paint spraying, and when the reciprocating type spraying component is converted from the first period to the second period or from the second period to the first period, air drying after paint spraying can be accelerated; the air blowing efficiency of the air blowing component is increased progressively, so that the air drying efficiency is increased progressively.

Description

Technical Field

[0001] The invention belongs to the field of workpiece spraying, and in particular relates to a reciprocating automatic spraying device and method for workpiece painting. Background Art

[0002] When a plate-shaped workpiece needs to be painted, workers usually use a brush to manually paint it. The workpiece often needs to be placed in a positioning fixture, and then several sides of the plate are sprayed with paint. The workload is large, and there will be problems such as paint leakage and dead corners in the spraying. There is an urgent need to improve the problems of paint leakage, dead corners in spraying and low spraying efficiency.

[0003] The present invention seeks to alleviate or at least mitigate such problems or deficiencies by providing new or otherwise improved workpiece spraying. Summary of the invention

[0004] In response to one or more of the above defects or improvement needs in the prior art, the present invention provides a reciprocating automatic spraying equipment and method for workpiece painting, which has the advantages of no dead angle in spraying and high efficiency in spraying, and can trigger a blowing component to blow air during the painting process to accelerate the air drying after painting.

[0005] To achieve the above-mentioned purpose, the present invention provides a reciprocating automatic spraying equipment for workpiece painting, which includes an operating chassis, a paint spraying chamber, an insertion opening at both ends of the operating chassis, a belt conveyor for conveying the workpiece to be painted located on one side of the insertion opening, and an NG product recovery box in the paint spraying chamber; A grabbing and feeding member is removably arranged in the painting chamber and is used for grabbing and feeding the workpiece to be painted in the belt conveyor; A rotating bearing member is removably arranged in the painting chamber, adjacent to one side of the grabbing and feeding member, and is used to position the workpiece to be painted after being grabbed by the grabbing and feeding member and to rotate and change the positions of multiple groups of workpieces to be painted; A reciprocating spraying component is detachably arranged in the spraying chamber, adjacent to one side of the rotating bearing component, and is composed of a fourth ball screw linear module, a displacement module connected to the fourth ball screw linear module, and a spraying module connected to the displacement module; The position changing module can be sequentially changed between the first position, the second position and the third position; When located at the first position, the paint spraying module is parallel to an edge of the workpiece to be painted, and the displacement module can drive the paint spraying module to spray from bottom to top along an edge of the workpiece to be painted; When located at the second position, the paint spraying module is parallel to another side surface of the workpiece to be painted that is perpendicular to the other side surface, and the displacement module can drive the paint spraying module to spray from right to left along the other side surface perpendicular to the one side surface of the workpiece to be painted; When located at the third position, the paint spraying module is parallel to another side surface perpendicular to another side surface of the workpiece to be painted, and the displacement module can drive the paint spraying module to spray from top to bottom along another side surface perpendicular to another side surface of the workpiece to be painted; The spraying of the paint spraying module from the first position to the second position and the third position is defined as a first cycle; The spraying of the paint spraying module from the third position to the second position and the first position is defined as the second cycle, and the fourth ball screw linear module is used to convert the paint spraying module cycle from the first cycle to the second cycle to complete the spraying operation of the workpiece to be sprayed.

[0006] As a further improvement of the present invention, the grabbing and feeding component comprises: A connecting frame, which is detachably arranged in the paint spraying chamber, and on which a first ball screw linear module is detachably arranged; A first slide rail, which is detachably mounted on the other end of the connecting frame and arranged along the width direction of the connecting frame; A displacement plate, which is detachably mounted on the first ball screw linear module, and a first sliding block which can slide on the first sliding rail is detachably arranged at the bottom thereof; A second ball screw linear module is detachably mounted on the displacement plate and arranged along the length direction of the displacement plate; a third ball screw linear module, which is detachably mounted on the second ball screw linear module and extends toward the bottom surface of the spray chamber; A CCD industrial camera is detachably arranged on the third ball screw linear module and extends toward the bottom surface of the paint spray chamber; and a first vacuum suction cup adsorption module is detachably arranged on the third ball screw linear module and is located on one side of the CCD industrial camera.

[0007] As a further improvement of the present invention, the rotating bearing member comprises: A connecting base is detachably arranged in the operating chassis, a first driving motor is detachably arranged on the connecting base, and the output end of the first driving motor can pass through the connecting base, a driving wheel is arranged on the output end of the first driving motor, and a belt is removably sleeved on the driving wheel; A fitting base, which is detachably arranged in the paint spraying chamber, on which a turbine reducer is detachably arranged, and a driven wheel is removably arranged on an output end of the turbine reducer, and the driven wheel is passed around by the belt; and a turntable, which is detachably arranged on the other output end of the turbine reducer, on the top of which an electromagnet adsorption disk is detachably arranged, and the electromagnet adsorption disk is coaxially arranged therebetween.

[0008] As a further improvement of the present invention, the displacement module of the fourth ball screw linear module includes: A first support plate, which is detachably arranged on the fourth ball screw linear module; A second support plate, which is detachably mounted on the first support plate, and on which a second slide rail is detachably arranged; A connecting base plate, a second sliding block which can slide on a second sliding rail is detachably arranged at the bottom thereof, and a third sliding block is detachably arranged at a back thereof; A third slide rail is slidably arranged in the third sliding block, and a driving roller is detachably arranged in the middle thereof; A left sealing plate, which is detachably arranged on the connecting base plate and is located on one side of the third sliding block; A right sealing plate, which is detachably arranged on the connecting base plate and is located on the other side of the third sliding block, and is used together with the left sealing plate to protect the third sliding rail; A second driving motor is detachably mounted on the second supporting plate, and its output end passes through the second driving motor. A slotted driving rod is detachably arranged on the output end, and a protective slot is provided in the slotted driving rod, and the protective slot can be passed through by the driving roller; and a bidirectional guide plate is detachably arranged on the second supporting plate, and is composed of two sub-plates assembled together, and each group of sub-plates has an inverted L-groove, and the two groups of inverted L-grooves are fitted with each other, and the two groups of inverted L-grooves can allow the driving roller to pass through.

[0009] As a further improvement of the present invention, the paint spraying module of the reciprocating spraying component includes: A tail plate is detachably arranged at the bottom of the third slide rail, and a rotating cylinder is detachably installed in the middle thereof; An electronic spray gun, which is detachably mounted on the output end of the rotating cylinder and can be driven to rotate by the rotating cylinder, and a paint spray bucket which is detachably arranged on one end and is interconnected with the electronic spray gun; and a spray plate, which is detachably mounted on the output end of the electronic spray gun and has a plurality of sub-spray heads thereon.

[0010] As a further improvement of the present invention, a plurality of first positioning holes are provided on one of the groups of sub-plates of the bidirectional guide plate, a plurality of second positioning holes are provided on another group of sub-plates of the bidirectional guide plate, a running-in plate is provided on one of the groups of sub-plates of the bidirectional guide plate, a running-in surface is provided on the other group of sub-plates of the bidirectional guide plate, and the running-in surface is abutted against the running-in plate.

[0011] As a further improvement of the present invention, a touch plate is also provided in the reciprocating spraying component, and the touch plate can be detachably mounted on one side surface of the fourth ball screw linear module. The touch plate can move synchronously with the movement of the fourth ball screw linear module. There is a gap between the touch plate and the fourth ball screw linear module. A first inclined surface and a transition plane in contact with the first inclined surface and a second inclined surface in contact with the transition plane are provided on one side surface of the touch plate, wherein the angle between the first inclined surface and the horizontal plane is smaller than the angle between the second inclined surface and the horizontal plane.

[0012] As a further improvement of the present invention, it also includes a blowing component, which includes: A connection box is detachably mounted in the paint spray chamber, with a first trigger port on one side thereof and a second trigger port on the upper end thereof, and the first trigger port and the second trigger port are connected to each other; A trigger rod, which is removably disposed in the second trigger port, has an inclined slope at one end thereof, and the size of the inclined slope is adapted to the size of the trigger rod; When in the initial state, the touch plate penetrates into the first trigger opening, and the touch plate does not directly contact the touch rod; A lifting plate is detachably mounted on the connection box, an airbag box is detachably arranged on the top of the lifting plate, and an inflatable airbag is detachably arranged inside the airbag box; and a spray rod is detachably mounted on an air outlet end of the inflatable airbag, and the spray rod can pass through the airbag box.

[0013] As a further improvement of the present invention, two sets of receiving components are also included, one set of receiving components is used to grab OK products of the painted workpieces, and the other set of receiving components is used to grab NG products of the painted workpieces, and the receiving components include: A receiving frame is detachably arranged in the paint spraying chamber, and a buffer slide bar is detachably arranged in the receiving frame; A first electric cylinder is detachably mounted on one side of the receiving frame, and an output end thereof penetrates into the receiving frame; A displacement guide seat, which is slidably arranged in the receiving frame and is penetrated by the buffer slide bar, and is detachably connected to the output end of the first electric cylinder; A second electric cylinder is detachably mounted on the displacement guide seat; a fourth slide rail, which is detachably mounted on the displacement guide seat and is in contact with the bottom surface of the displacement guide seat; A connecting pull plate, which is detachably arranged on the output end of the second electric cylinder, and on which a fourth slider that can slide on the fourth slide rail is detachably arranged; and a vacuum suction cup seat, which is detachably mounted on the connecting pull plate, and on which a detection camera is also provided, and on which a plurality of groups of second vacuum suction cup adsorption modules are provided, and the sizes of the plurality of groups of the second vacuum suction cup adsorption modules are adapted to the size of the vacuum suction cup seat; A lower hopper is detachably provided in another insertion opening of the operating chassis, and the lower hopper can pass through the other insertion opening of the operating chassis. A OK product recovery box is also detachably provided on the other side surface of the operating chassis, and the OK product recovery box is located below the lower hopper.

[0014] Another technical problem to be solved by the present invention is a method for using a reciprocating automatic spraying device for painting a workpiece. S1. Loading workpieces to be painted: placing multiple groups of workpieces to be painted on a belt conveyor to complete the loading and conveying operation of the workpieces to be painted; S2. Grabbing and feeding the workpiece to be painted: the workpiece to be painted is transferred to the rotating bearing member by the grabbing and feeding member to complete the grabbing and feeding operation of the workpiece to be painted; S3, rotational positioning operation of the workpieces to be painted: after multiple groups of workpieces to be painted are placed on the rotating bearing member, the rotating bearing member is opened to complete the positioning operation of the workpieces to be painted, and the workpieces to be painted can also be rotated to change the painting position of each group of workpieces to be painted; S4, performing a first cycle of spraying operation on the workpiece to be sprayed: sequentially switching the spraying module from the first position to the second position through the shifting module, and then switching the spraying module from the second position to the third position through the shifting module, so as to complete the first cycle of spraying operation on the workpiece to be sprayed; S5, performing a second cycle of spraying operation on the workpiece to be painted: sequentially switching the spraying module from the third position to the second position through the shifting module, and then switching the spraying module from the second position to the first position through the shifting module, so as to complete the second cycle of spraying operation on the workpiece to be painted; S6, cyclic spraying operation of the workpiece to be painted: by moving the fourth ball screw linear module forward, the module to be painted is sequentially switched from the first cycle to the second cycle, and the cycle is repeated in the same way to complete the cyclic progressive spraying operation of the workpiece to be painted; S7, blowing operation on the painted workpiece: when the fourth ball screw linear module is gradually advanced, the blowing component can be triggered to perform linkage operation, when the fourth ball screw linear module moves forward, the receiving component can be pushed to blow the painted workpiece, when the fourth ball screw linear module moves forward again, the receiving component can be pushed again to blow the painted workpiece, and the blowing frequency is greater than the first blowing frequency; S8. Collection of workpieces that have been painted: by arranging two sets of collecting components, when one set of collecting components is in operation, it can grab and collect the workpieces that have been painted OK, and when the other set of collecting components is in operation, it can grab and collect the workpieces that have been painted NG.

[0015] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects: The reciprocating automatic spraying equipment and method for workpiece painting of the present invention can perform integrated progressive spraying operations on the three horizontal and vertical sides of the workpiece to be painted by means of the reciprocating spraying components and blowing components, and can achieve spraying without dead angles and high spraying efficiency. The blowing component can be triggered to blow air during the painting process to accelerate air drying after painting, and the blowing efficiency of the blowing component can be progressively increased when the reciprocating spraying component is switching from the first cycle to the second cycle, or from the second cycle to the first cycle, to achieve progressive acceleration of air drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the reciprocating automatic spraying equipment for painting workpieces of the present invention; Figure 2 This is a schematic structural diagram of the reciprocating automatic spraying equipment for spraying paint on workpieces according to the present invention from another angle; Figure 3 A top view of the reciprocating automatic spraying equipment for spraying paint on a workpiece according to the present invention; Figure 4 It is a schematic diagram of the overall structure of the grabbing and feeding component of the present invention; Figure 5 It is a schematic diagram of the overall structure of the rotating bearing member of the present invention; Figure 6 It is a schematic diagram of the overall structure of the reciprocating spraying component of the present invention; Figure 7 It is a schematic diagram of the overall structure of the reciprocating spraying component of the present invention viewed from another angle; Figure 8 This is a schematic diagram of the overall structure of the reciprocating spraying component of the present invention from another perspective; Fig. 9This is a disassembled diagram of the reciprocating spraying component of the present invention; Fig.10 It is a schematic diagram of the overall structure of the bidirectional guide plate of the present invention; Fig.11 It is a schematic diagram of the overall structure of the notch drive rod of the present invention; Fig.12 It is a schematic diagram of the overall structure of the blowing component of the present invention; Fig.13 It is a schematic diagram of the overall structure of the material receiving component of the present invention.

[0017] In all the drawings, the same reference numerals represent the same technical features, specifically: 1. operating chassis; 11. belt conveyor; 12. NG product recovery box; 2. grabbing and feeding member; 21. connecting frame; 22. first ball screw linear module; 23. first slide rail; 24. displacement plate; 25. first slider; 26. second ball screw linear module; 27. third ball screw linear module; 28. CCD industrial camera; 29. ​​first true Empty suction cup adsorption module; 3, rotating bearing member; 31, connecting base; 32, first driving motor; 33, driving wheel; 34, belt; 35, fitting base; 36, turbine reducer; 37, driven wheel; 38, turntable; 39, electromagnet adsorption disk; 4, reciprocating spraying member; 41, fourth ball screw linear module; 42, touch plate; 421, first inclined plane; 422, transition plane; 423, second inclined plane; 43, first support Support plate; 44, second support plate; 441, second slide rail; 442, connecting base plate; 443, second slider; 444, third slider; 445, third slide rail; 446, driving roller; 447, left sealing plate; 448, right sealing plate; 45, second driving motor; 451, slot driving rod; 46, two-way guide plate; 47, tail plate; 48, rotating cylinder; 49, electronic spray gun; 491, spraying plate; 5, blowing component; 51, connecting plate Connecting box; 52. Trigger rod; 53. Lifting plate; 54. Airbag box; 55. Inflatable airbag; 56. Spray rod; 6. Material collecting component; 61. Material collecting rack; 62. Buffer slide bar; 63. First electric cylinder; 64. Displacement guide seat; 65. Second electric cylinder; 66. Fourth slide rail; 67. Connecting pull plate; 671. Fourth slide block; 68. Vacuum suction cup seat; 69. Second vacuum suction cup adsorption module; 7. Lower hopper; 8. OK product recycling box. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "comprise", "include", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0020] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.

[0021] In the embodiment, Figure 1-3 A reciprocating automatic spraying device for workpiece painting is provided, which includes an operating chassis 1, a paint spraying chamber is provided therein, a through hole is provided at both ends of the operating chassis 1, a belt conveyor 11 for conveying the workpiece to be painted is provided on one side of the through hole, and an NG product recovery box 12 is provided in the paint spraying chamber; a grabbing and feeding component 2 is removably arranged in the paint spraying chamber, and is used for grabbing and feeding the workpiece to be painted in the belt conveyor 11; a rotating bearing component 3 is removably arranged in the paint spraying chamber , which is adjacent to one side of the grabbing and feeding member 2, and is used to position the workpiece to be painted after being grabbed by the grabbing and feeding member 2 and to rotate and change the position of multiple groups of workpieces to be painted; the reciprocating spraying member 4, which is detachably arranged in the spraying chamber, is adjacent to one side of the rotating bearing member 3, and is composed of a fourth ball screw linear module 41 and a displacement module connected to the fourth ball screw linear module 41 and a spraying module connected to the displacement module; wherein the displacement module can be in the first position and the second position and The paint spraying module is parallel to one side of the workpiece to be painted, and the displacement module can drive the paint spraying module to spray from bottom to top along one side of the workpiece to be painted; when located in the second position, the paint spraying module is parallel to another side perpendicular to one side of the workpiece to be painted, and the displacement module can drive the paint spraying module to spray from right to left along another side perpendicular to one side of the workpiece to be painted; when located in the third position, the paint spraying module is parallel to another side perpendicular to the workpiece to be painted. Another side face is perpendicular to the side face of the workpiece to be painted, and the displacement module can drive the paint spraying module to spray from top to bottom along another side face perpendicular to the other side face of the workpiece to be painted; the spraying of the paint spraying module from the first position to the second position and the third position is defined as the first cycle; the spraying of the paint spraying module from the third position to the second position and the first position is defined as the second cycle, and the fourth ball screw linear module 41 is used to convert the paint spraying module cycle from the first cycle to the second cycle to complete the spraying operation of the workpiece to be sprayed.

[0022] First of all, the paint spraying chamber of the operating chassis 1 can be determined according to the actual production size, and the NG product recovery box 12 can pass through one of the through holes of the operating chassis 1; Please refer to Figure 4 Specifically, the grabbing and feeding member 2 includes a connecting frame 21, which is detachably arranged in the paint spraying chamber. It should be noted that the connecting frame 21 is a known driving module in the prior art, which can be composed of a housing, a screw rod rotating in the housing, a motor module for driving the screw rod to rotate, and a ball bearing base in the sliding housing; Next, the following description is made: a first ball screw linear module 22 is detachably arranged on the connecting frame 21; a first slide rail 23 is detachably mounted on the other end of the connecting frame 21 and arranged along the width direction of the connecting frame 21; a displacement plate 24 is detachably mounted on the first ball screw linear module 22, and a first slider 25 detachably arranged at the bottom thereof and slidable on the first slide rail 23; a second ball screw linear module 26 is detachably mounted on the displacement plate 24 The first vacuum suction cup module 29 is detachably arranged on the third ball screw linear module 27 and is located on one side of the CCD industrial camera 28. It should also be explained that the first vacuum suction cup adsorption module 29 is a known component in the prior art, and its purpose is to perform adsorption operations on the workpiece to be sprayed with paint. It can be observed more clearly through the CCD industrial camera 28, and when grabbing the workpiece to be sprayed with paint in the NG product recovery box 12, by opening the first ball screw linear module 22, the second ball screw linear module 26, and the third ball screw linear module 27 in sequence, the first vacuum suction cup adsorption module 29 can be adjusted and moved in six directions including front, back, left, right, up and down, so as to increase the flexibility of the first vacuum suction cup adsorption module 29 in grabbing the workpiece to be sprayed.

[0023] Please continue reading Figure 5 , Figure 5The main purpose is to further explain the rotating bearing member 3. The rotating bearing member 3 includes a connecting base 31, which is detachably arranged in the operating chassis 1, on which a first driving motor 32 is detachably arranged, and the output end of the first driving motor 32 can pass through it, and a driving wheel 33 is arranged on the output end of the first driving motor 32, and a belt 34 is removably sleeved on the driving wheel 33; a fitting base 35, which is detachably arranged in the paint spraying chamber, on which a turbine reducer 36 is detachably arranged, and a driven wheel 37 is removably arranged on an output end of the turbine reducer 36, and the driven wheel 37 is bypassed by the belt 34; It should be noted that the diameter ratio between the driving wheel 33 and the driven wheel 37 is 1:1, so that the rationality of the ratio between the driving wheel 33 and the driven wheel 37 is increased, and the turntable 38 is detachably arranged on the other output end of the worm reducer 36, and an electromagnet adsorption disk 39 is detachably arranged on the top thereof, and the electromagnet adsorption disk 39 is coaxially arranged therebetween; It should also be noted that the electromagnet adsorption disk 39 and the rotating disk 38 are coaxially arranged, and a through hole is also provided in the middle of the electromagnet adsorption disk 39, through which the excess paint sprayed during the spraying process can be collected in the disk-shaped collection area; When the rotating bearing member 3 is operated, the switch of the first driving motor 32 is first turned on, so that the first driving motor 32 drives the driving wheel 33 to rotate, and transmits the transmission to the driven wheel 37 through the belt 34 to rotate, and the speed is changed through the turbine reducer 36 to drive the rotating disk 38 to rotate, and then the rotating disk 38 drives the electromagnet adsorption disk 39 to rotate; It should also be noted that the electromagnet adsorption plate 39 is a known component in the prior art. After placing multiple groups of workpieces to be sprayed on the electromagnet adsorption plate 39, once the electromagnet adsorption plate 39 is powered on, the workpieces to be sprayed can be subjected to electromagnetic adsorption operation to enhance the stability during spraying. After the electromagnet adsorption plate 39 is powered off, the workpieces to be sprayed on the electromagnet adsorption plate 39 can be removed. In a more specific embodiment, the workpieces to be sprayed on the electromagnet adsorption plate 39 can be limited to two groups, and the two groups of workpieces to be sprayed are distributed along the cross-sectional diameter of the electromagnet adsorption plate 39 to facilitate subsequent spraying operations.

[0024] Next, please refer to Figure 6 , Figure 7 , Figure 8 , Fig. 9, followed by a detailed description of the displacement module of the reciprocating spraying component 4, the displacement module of the fourth ball screw linear module 41 includes a first support plate 43, which is detachably arranged on the fourth ball screw linear module 41; a second support plate 44, which is detachably mounted on the first support plate 43, and a second slide rail 441 is detachably arranged thereon; a connecting base plate 442, a second slider 443 that can slide on the second slide rail 441 is detachably arranged at the bottom thereof, and a third slider 444 is detachably arranged on a back thereof; a third slide rail 445, which is slidably arranged in the third slider 444, and a driving roller 446 is detachably arranged in the middle thereof; a left sealing plate 447, which is detachably arranged on the connecting base plate 442, and is located on the third slider 444; a right sealing plate 448, which is detachably arranged on the connecting base plate 442, which is located on the other side of the third sliding block 444, and is used to protect the third sliding rail 445 together with the left sealing plate 447; a second driving motor 45, which is detachably mounted on the second supporting plate 44, and its output end passes through the second driving motor 45, and a notch driving rod 451 is detachably arranged on its output end, and a protective notch is provided in the notch driving rod 451, and the protective notch can be passed through by the driving roller 446; and a two-way guide plate 46, which is detachably arranged on the second supporting plate 44, and is composed of two sub-plates assembled together, and each group of sub-plates has an inverted L-groove, and the two groups of inverted L-grooves fit each other, and the two groups of inverted L-grooves can be passed through by the driving roller 446; When the displacement module drives the spraying module to change the first position, first, the second driving motor 45 in the displacement module drives the slot driving rod 451 to rotate, which is subject to the inverted L-slot movement of the driving roller 446 in the two groups of sub-plates of the bidirectional guide plate 46. Fig. 9 It can be known that it is equivalent to the vertical section of the driving roller 446 in the inverted L-groove moving. When the slot driving rod 451 rotates clockwise, the vertical end section of the driving roller 446 in the inverted L-groove will move, and the third slide rail 445 can be driven to slide in the third slider 444 at the same time to maintain the stability of the third slide rail 445 during movement without interference and collision. At this time, the paint spraying module can be turned on to spray paint on one side of the workpiece to be painted, and the paint spraying operation at this time is a recursive spraying from bottom to top along the workpiece to be sprayed, so there is no dead angle problem during the spraying process; Subsequently, after the third slide rail 445 is supported by the left sealing plate 447 and the right sealing plate 448, the stability of the third slide rail 445 when the third slider 444 moves upward or downward can be further enhanced; Please refer to the following Fig.11By setting a protective notch in the notch driving rod 451, the driving roller 446 can be effectively stabilized during movement, and space is provided on both sides when the third slide rail 445 moves up or down to prevent the driving roller 446 from being suffocated during movement; When the displacement module drives the paint spraying module to change to the second position, the notch driving rod 451 continues to rotate clockwise, and when the driving roller 446 approaches the transverse notch of the inverted L-groove, that is, the horizontal section of the inverted L-groove, at this time, the driving roller 446 moves along the transverse notch of the inverted L-groove, and at the same time, the connecting base plate 442 drives the second slider 443 to slide on the second slide rail 441, so that the displacement module can drive the paint spraying module to spray from right to left along another side surface perpendicular to one side surface of the workpiece to be painted, and the spraying path is equivalent to the length of the transverse notch of the two-way guide plate 46; When the displacement module drives the paint spraying module to change to the third position, the slot drive rod 451 continues to rotate clockwise, and after the drive roller 446 approaches the vertical section of the inverted L-slot, the drive roller 446 moves along the vertical section of the L-slot, and at the same time, the third slide rail 445 moves in the third slide block 444, so that the displacement module can drive the paint spraying module to spray from top to bottom along another side surface perpendicular to another side surface of the workpiece to be painted; After the spraying at the first position, the second position and the third position is completed, the spraying of the paint spraying module from the first position to the second position and the third position is defined as the first cycle; On the contrary, when the second drive motor 45 rotates counterclockwise, the displacement module drives the paint spraying module to transform from the third position to the second position and the first position, and then the paint spraying module is defined to transform from the third position to the second position and the first position as the second cycle. It should also be noted that since the movement directions of the second cycle are opposite to those of the first cycle, the description of the second cycle is omitted in this embodiment.

[0025] After the first cycle is completed, when the fourth ball screw linear module 41 moves, the displacement module can drive the spraying module to the second cycle, and then the fourth ball screw linear module 41 is used to perform a cyclic spraying operation from the first cycle to the second cycle, and from the first cycle to the second cycle, so as to complete the integrated progressive spraying operation of the three sides of the horizontal and vertical sides of the workpiece to be painted, so as to achieve no dead angle in the spraying, and the spraying efficiency is high, avoiding the problem of spraying one side surface at a time and the existence of dead angles in the spraying; Please continue reading Figure 6 , Figure 7 , Figure 8, and then the paint spraying module of the reciprocating spraying component 4 is further described. The paint spraying module of the reciprocating spraying component 4 includes a tail plate 47, which is detachably arranged at the bottom of the third slide rail 445, and a rotating cylinder 48 is detachably installed in the middle thereof; an electronic spray gun 49, which is detachably installed on the output end of the rotating cylinder 48, and can be driven to rotate by the rotating cylinder 48, and a paint spray bucket interconnected with the electronic spray gun 49 is detachably arranged on one end thereof; and a spraying plate 491, which is detachably installed on the output end of the electronic spray gun 49, and has a plurality of sub-spray heads thereon; More specifically, during the conversion from the first position to the second position, the output end of the rotary cylinder 48 needs to be opened so that the rotary cylinder 48 rotates ninety degrees clockwise so that the spray plate 491 is aligned with the upper end surface of the workpiece to be painted; Similarly, in the process of switching from the second position to the third position, the output end of the rotary cylinder 48 needs to be kept open, so that the rotary cylinder 48 rotates ninety degrees clockwise, so that the spray plate 491 is aligned with the left end surface of the workpiece to be painted. During this period, the switch of the electronic spray gun 49 is kept turned on to continue the painting operation; The movement path of the spraying operation in the second cycle is opposite to that of the spraying operation in the first cycle, so it will not be described in detail in this embodiment; In some other embodiments, see Fig.10 In order to further spray paint components of different widths, the present invention has been modified in the above embodiment. Specifically, a plurality of first positioning holes are provided on one of the sub-plates of the bidirectional guide plate 46, a plurality of second positioning holes are provided on another sub-plate of the bidirectional guide plate 46, a running-in plate is provided on one of the sub-plates of the bidirectional guide plate 46, a running-in surface is provided on another sub-plate of the bidirectional guide plate 46, and the running-in surface and the running-in plate are in contact with each other; By splitting the bidirectional guide plate 46 into two sub-plates, and one sub-plate having a running-in plate, and the other sub-plate having a running-in surface, after the two groups of sub-plates are pulled apart and extended, the transverse slot of the bidirectional guide plate 46 can be enlarged, which means that the length of the driving roller 446 when moving in the transverse slot is increased to adapt to the use of the workpiece to be painted with an increased width. Conversely, the two groups of sub-plates are pushed together to reduce the transverse slot of the bidirectional guide plate 46, so as to process the workpiece to be painted with a reduced width. Please continue to refer to Figure 6In order to enable the reciprocating spraying component 4 to be linked with the blowing component 5, and to enable blowing to dry other sprayed areas during the process of spraying the workpiece to be sprayed, a touch plate 42 is also provided in the reciprocating spraying component 4. The touch plate 42 is detachably mounted on one side of the fourth ball screw linear module 41. The touch plate 42 can move synchronously with the movement of the fourth ball screw linear module 41. There is a gap between the touch plate 42 and the fourth ball screw linear module 41. There is a first inclined surface 421 and a transition plane 422 in contact with the first inclined surface 421 and a second inclined surface 423 in contact with the transition plane 422 on one side of the touch plate 42, wherein the angle between the first inclined surface 421 and the horizontal plane is smaller than the angle between the second inclined surface 423 and the horizontal plane; It should be noted that the force of the electronic spray gun 49 spraying paint is greater than the blowing speed of the blowing member 5, and there will be no interference between the two; In the meantime, please see Fig.12 , the device also includes a blowing component 5, the blowing component 5 includes a connecting box 51, which is detachably installed in the paint spraying chamber, a first trigger port is provided on one side surface thereof, a second trigger port is provided on the upper end surface thereof, and the first trigger port and the second trigger port are connected to each other; a trigger rod 52, which is removably arranged in the second trigger port, and has an inclined slope surface at one end thereof, and the size of the inclined slope surface is adapted to the size of the trigger rod 52; when it is in the initial state, the touch plate 42 penetrates into the first trigger port, and the touch plate 42 does not directly contact the touch rod 52; a lifting plate 53, which is detachably installed on the connecting box 51, an air bag box 54 is detachably arranged on the top thereof, and an inflatable air bag 55 is detachably arranged in the air bag box 54; and a spray rod 56, which is detachably installed on an air outlet end of the inflatable air bag 55, and the spray rod 56 can pass through the air bag box 54; When the reciprocating spraying component 4 moves from the first cycle to the second cycle and the fourth ball screw linear module 41 is pushed, the touch plate 42 is first inserted into the first trigger port to push the touch rod 52, so that the touch rod 52 slowly pushes the airbag box 54 and the inflatable airbag 55, so that the inflatable airbag 55 is inflated into the spray rod 56 and blows air to the vicinity of the sprayed workpiece to accelerate the drying degree of the sprayed paint; Secondly, when the second cycle moves toward the first cycle, the fourth ball screw linear module 41 continues to advance, so that the touch plate 42 can continue to push the touch rod 52 when passing through the second inclined surface 423. Since the running speed of the touch plate 42 is constant and the second inclined surface 423 has a greater slope than the first inclined surface 421, when the touch rod 52 pushes the airbag box 54 and the inflatable airbag 55, the efficiency of the inflation can be further accelerated, so as to progressively increase the drying degree of the spray paint. Of course, the inflatable airbag 55 also has an inflation port, which can be connected to an external inflation source, so that the inflation and deflation operations can be continued after the inflatable airbag 55 is deflated; Of course, it is not limited to a set of first inclined surfaces 421 and a set of second inclined surfaces 423, and the inclined surfaces may be gradually increased in slope, and can be manufactured according to actual production requirements; See also Fig.13 In order to facilitate the recovery of the workpieces that have been painted, the present device also includes two groups of receiving components 6, one of which is used to grab the OK products of the painted workpieces, and the other is used to grab the NG products of the painted workpieces. The receiving components 6 include a receiving frame 61, which is detachably arranged in the paint spraying chamber, and a buffer slide bar 62 is detachably arranged therein; a first electric cylinder 63, which is detachably installed on one side of the receiving frame 61, and its output end is inserted into the receiving frame 61; a displacement guide seat 64, which is slidably arranged in the receiving frame 61, and is passed through by the buffer slide bar 62, and is connected to the output end of the first electric cylinder 63. a second electric cylinder 65, which is detachably mounted on the displacement guide seat 64; a fourth slide rail 66, which is detachably mounted on the displacement guide seat 64, and which contacts the bottom surface of the displacement guide seat 64; a connecting pull plate 67, which is detachably arranged on the output end of the second electric cylinder 65, and on which a fourth slider 671 that can slide on the fourth slide rail 66 is detachably arranged; and a vacuum suction cup seat 68, which is detachably mounted on the connecting pull plate 67, on which a detection camera is also provided, and on which a plurality of second vacuum suction cup adsorption modules 69 are provided, and the size of the plurality of second vacuum suction cup adsorption modules 69 is adapted to the size of the vacuum suction cup seat 68; When collecting the workpieces that have been painted, firstly, the first electric cylinder 63 is turned on to move the connecting pull plate 67 as a whole, and the second electric cylinder 65 is turned on to move the second vacuum suction cup adsorption module 69 as a whole; A lower hopper 7 is detachably arranged in another insertion opening of the operating chassis 1, and the lower hopper 7 can pass through another insertion opening of the operating chassis 1. A OK product recovery box 8 is also detachably arranged on the other side of the operating chassis 1, and the OK product recovery box 8 is located below the lower hopper 7; After the inspection camera detects that there is no problem with the spraying of the workpiece, it can be grabbed by the second vacuum suction cup adsorption module 69 and sent to the lower hopper 7. After the inspection camera detects that there is any sprayed workpiece that has missed the paint, it can be thrown into the NG product recovery box 12 by the second vacuum suction cup adsorption module 69 to complete the collection.

[0026] Another technical problem to be solved by the present invention is a method for using a reciprocating automatic spraying device for painting a workpiece. S1, loading workpieces to be painted: placing multiple groups of workpieces to be painted on the belt conveyor 11 to complete the loading and conveying operation of the workpieces to be painted; S2, the workpiece to be painted is grasped and fed: the workpiece to be painted is transferred to the rotating bearing member 3 by the grasping and feeding member 2, so as to complete the grasping and feeding operation of the workpiece to be painted; S3, rotational positioning operation of the workpieces to be painted: after multiple groups of workpieces to be painted are placed on the rotating bearing member 3, the rotating bearing member 3 is opened to complete the positioning operation of the workpieces to be painted, and the workpieces to be painted can also be rotated to change the painting position of each group of workpieces to be painted; S4, performing a first cycle of spraying operation on the workpiece to be sprayed: sequentially switching the spraying module from the first position to the second position through the shifting module, and then switching the spraying module from the second position to the third position through the shifting module, so as to complete the first cycle of spraying operation on the workpiece to be sprayed; S5, performing a second cycle of spraying operation on the workpiece to be painted: sequentially switching the spraying module from the third position to the second position through the shifting module, and then switching the spraying module from the second position to the first position through the shifting module, so as to complete the second cycle of spraying operation on the workpiece to be painted; S6, cyclic spraying operation of the workpiece to be painted: by moving the fourth ball screw linear module 41 forward, the modules to be painted are sequentially switched from the first cycle to the second cycle, and the cycle is repeated in the same way to complete the cyclic progressive spraying operation of the workpiece to be painted; S7, blowing operation on the painted workpiece: when the fourth ball screw linear module 41 is gradually and progressively advanced, the blowing component 5 can be triggered to perform linkage operation, when the fourth ball screw linear module 41 moves forward, the receiving component 6 can be pushed to perform blowing operation on the painted workpiece, when the fourth ball screw linear module 41 moves forward again, the receiving component 6 can be pushed again to perform blowing operation on the painted workpiece, and the blowing frequency is greater than the first blowing frequency; S8. Collection of workpieces that have been painted: by arranging two groups of collecting components 6, when one group of collecting components 6 is in operation, it can grab and collect the workpieces that have been painted OK, and when the other group of collecting components 6 is in operation, it can grab and collect the workpieces that have been painted NG.

[0027] In summary, by setting up the reciprocating spraying component 4 and the blowing component 5, the three horizontal and vertical sides of the workpiece to be painted can be subjected to an integrated progressive spraying operation, and the problem of spraying without dead angles and high efficiency can be solved. The blowing component 5 can be triggered to blow air during the painting process to accelerate the air-drying after the paint is sprayed, and when the reciprocating spraying component 4 is converted from the first cycle to the second cycle, or from the second cycle to the first cycle, the blowing efficiency of the blowing component 5 can be progressively increased to achieve progressive acceleration of the air-drying efficiency.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reciprocating automatic spraying equipment for workpiece painting, characterized in that: It includes: An operating chassis (1) has a paint spraying chamber therein, has an insertion opening at both ends, has a belt conveyor (11) for conveying a workpiece to be painted located on one side of the insertion opening, and has an NG product recovery box (12) in the paint spraying chamber; A grabbing and feeding member (2) is removably arranged in the paint spraying chamber and is used to carry out a grabbing and feeding operation on a workpiece to be painted in the belt conveyor (11); A rotating bearing member (3) is removably arranged in the paint spraying chamber and is adjacent to one side of the grabbing and feeding member (2), and is used to position the workpiece to be painted after being grabbed by the grabbing and feeding member (2) and to rotate and change the positions of multiple groups of workpieces to be painted; A reciprocating spraying component (4) is detachably arranged in the spraying chamber, adjacent to one side of the rotating bearing component (3), and is composed of a fourth ball screw linear module (41), a displacement module on the fourth ball screw linear module (41), and a spraying module connected to the displacement module; The position changing module can be sequentially changed between the first position, the second position and the third position; When located at the first position, the paint spraying module is parallel to an edge of the workpiece to be painted, and the displacement module can drive the paint spraying module to spray from bottom to top along an edge of the workpiece to be painted; When located at the second position, the paint spraying module is parallel to another side surface of the workpiece to be painted that is perpendicular to the other side surface, and the displacement module can drive the paint spraying module to spray from right to left along the other side surface perpendicular to the one side surface of the workpiece to be painted; When located at the third position, the paint spraying module is parallel to another side surface perpendicular to another side surface of the workpiece to be painted, and the displacement module can drive the paint spraying module to spray from top to bottom along another side surface perpendicular to another side surface of the workpiece to be painted; The spraying of the paint spraying module from the first position to the second position and the third position is defined as a first cycle; The spraying of the paint spraying module along the third position to the second position and the first position is defined as a second cycle, and the fourth ball screw linear module (41) is used to convert the cycle of the paint spraying module from the first cycle to the second cycle to complete the spraying operation of the workpiece to be sprayed.

2. The reciprocating automatic spraying equipment for workpiece painting according to claim 1 is characterized in that: The grabbing and feeding component (2) comprises: A connecting frame (21) is detachably arranged in the paint spraying chamber, and a first ball screw linear module (22) is detachably arranged on the connecting frame; A first slide rail (23) which is detachably mounted on the other end of the connecting frame (21) and is arranged along the width direction of the connecting frame (21); A displacement plate (24) is detachably mounted on the first ball screw linear module (22), and a first sliding block (25) detachably arranged at the bottom thereof and slidable on the first sliding rail (23); A second ball screw linear module (26) is detachably mounted on the displacement plate (24) and is arranged along the length direction of the displacement plate (24); A third ball screw linear module (27) is detachably mounted on the second ball screw linear module (26) and extends toward the bottom surface of the paint spray chamber; A CCD industrial camera (28) is detachably arranged on the third ball screw linear module (27) and extends toward the bottom surface of the spray painting chamber; and a first vacuum suction cup adsorption module (29) is detachably arranged on the third ball screw linear module (27) and is located on one side of the CCD industrial camera (28).

3. The reciprocating automatic spraying equipment for workpiece painting according to claim 1 is characterized in that: The rotating bearing component (3) comprises: A connecting base (31) is detachably arranged in the operating case (1), a first driving motor (32) is detachably arranged on the connecting base, and the output end of the first driving motor (32) can pass through the connecting base, a driving wheel (33) is arranged on the output end of the first driving motor (32), and a belt (34) is removably sleeved on the driving wheel (33); A fitting base (35) is detachably arranged in the paint spraying chamber, on which a turbine reducer (36) is detachably arranged, and a driven wheel (37) is removably arranged on an output end of the turbine reducer (36), and the driven wheel (37) is passed around by the belt (34); and a turntable (38) is detachably arranged on the other output end of the turbine reducer (36), on the top of which an electromagnet adsorption disk (39) is detachably arranged, and the electromagnet adsorption disk (39) is coaxially arranged therebetween.

4. The reciprocating automatic spraying equipment for workpiece painting according to claim 3 is characterized in that: The displacement module of the fourth ball screw linear module (41) comprises: A first support plate (43) which is detachably arranged on the fourth ball screw linear module (41); A second support plate (44) is detachably mounted on the first support plate (43), and a second slide rail (441) is detachably arranged on the second support plate; A connecting base plate (442) is provided at the bottom thereof with a second sliding block (443) that can slide on the second sliding rail (441) and at the back thereof with a third sliding block (444) that can be detachably provided; A third slide rail (445) is slidably disposed in the third sliding block (444), and a driving roller (446) is detachably disposed in the middle thereof; A left sealing plate (447) is detachably arranged on the connecting base plate (442) and is located on one side of the third sliding block (444); a right sealing plate (448) which is detachably arranged on the connecting base plate (442) and is located on the other side of the third sliding block (444); the right sealing plate (448) and the left sealing plate (447) are used to protect the third sliding rail (445); A second drive motor (45) is detachably mounted on the second support plate (44), the output end of which passes through the second drive motor (45), and a slot drive rod (451) is detachably arranged on the output end, the slot drive rod (451) has a protective slot, and the protective slot can be passed through by the drive roller (446); and a bidirectional guide plate (46) is detachably arranged on the second support plate (44), which is composed of two sub-plates assembled together, each group of sub-plates has an inverted L-groove, the two groups of inverted L-grooves are fitted together, and the two groups of inverted L-grooves can allow the drive roller (446) to pass through.

5. The reciprocating automatic spraying equipment for workpiece painting according to claim 4 is characterized in that: The reciprocating spraying component (4) has a paint spraying module comprising: A tail plate (47) is detachably arranged at the bottom of the third slide rail (445), and a rotating cylinder (48) is detachably mounted in the middle thereof; An electronic spray gun (49) is detachably mounted on the output end of the rotating cylinder (48), can be driven to rotate by the rotating cylinder (48), and has a spray paint bucket detachably arranged on one end thereof and interconnected with the electronic spray gun (49); and a spray plate (491) is detachably mounted on the output end of the electronic spray gun (49), and has a plurality of groups of sub-spray heads thereon.

6. The reciprocating automatic spraying equipment for workpiece painting according to claim 4, characterized in that: A plurality of first positioning holes are provided on one of the sub-plates of the bidirectional guide plate (46), a plurality of second positioning holes are provided on another of the sub-plates of the bidirectional guide plate (46), a grinding plate is provided on one of the sub-plates of the bidirectional guide plate (46), a grinding surface is provided on another of the sub-plates of the bidirectional guide plate (46), and the grinding surface abuts against the grinding plate.

7. The reciprocating automatic spraying equipment for workpiece painting according to claim 4 is characterized in that: The reciprocating spraying component (4) also has a touch plate (42), which is detachably mounted on one side of the fourth ball screw linear module (41). The touch plate (42) can move synchronously with the movement of the fourth ball screw linear module (41), and there is a gap between the touch plate (42) and the fourth ball screw linear module (41). A first inclined surface (421), a transition plane (422) in contact with the first inclined surface (421), and a second inclined surface (423) in contact with the transition plane (422) are provided on one side of the touch plate (42), wherein the angle between the first inclined surface (421) and the horizontal plane is smaller than the angle between the second inclined surface (423) and the horizontal plane.

8. The reciprocating automatic spraying equipment for workpiece painting according to claim 7, characterized in that: It also includes a blowing component (5), which includes: A connection box (51) is detachably mounted in the paint spray chamber, with a first trigger port being provided on one side surface thereof and a second trigger port being provided on an upper end surface thereof, and the first trigger port and the second trigger port being communicated with each other; A trigger rod (52) is removably disposed in the second trigger port and has an inclined slope at one end thereof, and the size of the inclined slope is adapted to the size of the trigger port; When in the initial state, the touch plate (42) penetrates into the first trigger opening, and the touch plate (42) does not directly contact the touch rod (52); A lifting plate (53) is detachably mounted on the connection box (51), an airbag box (54) is detachably arranged on the top of the lifting plate, and an inflatable airbag (55) is detachably arranged inside the airbag box (54); and a spray rod (56) is detachably mounted on an air outlet end of the inflatable airbag (55), and the spray rod (56) can pass through the airbag box (54).

9. The reciprocating automatic spraying equipment for workpiece painting according to claim 1, characterized in that: The invention also comprises two groups of receiving components (6), wherein one group of receiving components (6) is used to grab OK products of the painted workpieces, and the other group of receiving components (6) is used to grab NG products of the painted workpieces. The receiving components (6) comprise: A material receiving frame (61) is detachably arranged in the paint spraying chamber, and a buffer sliding rod (62) is detachably arranged in the frame; A first electric cylinder (63) is detachably mounted on a side surface of the receiving frame (61), and an output end thereof penetrates into the receiving frame (61); A displacement guide seat (64) which is slidably arranged in the material receiving frame (61) and is penetrated by the buffer slide bar (62), and is detachably connected to the output end of the first electric cylinder (63); A second electric cylinder (65) detachably mounted on the displacement guide seat (64); a fourth slide rail (66) which is detachably mounted on the displacement guide seat (64) and is in contact with the bottom surface of the displacement guide seat (64); a connecting pull plate (67) which is detachably arranged on the output end of the second electric cylinder (65), on which a fourth sliding block (671) which can slide on a fourth sliding rail (66) is detachably arranged; and a vacuum suction cup seat (68) which is detachably mounted on the connecting pull plate (67), on which a detection camera is also arranged, and on which a plurality of groups of second vacuum suction cup adsorption modules (69) are arranged, and the sizes of the plurality of groups of second vacuum suction cup adsorption modules (69) are adapted to the sizes of the vacuum suction cup seat (68); A lower hopper (7) is detachably provided in another insertion opening of the operating case (1), and the lower hopper (7) can pass through another insertion opening of the operating case (1). An OK product recovery box (8) is also detachably provided on another side surface of the operating case (1), and the OK product recovery box (8) is located below the lower hopper (7).

10. The method for using the reciprocating automatic spraying equipment for workpiece painting according to claim 9, characterized in that: S1. Loading workpieces to be painted: placing multiple groups of workpieces to be painted on a belt conveyor (11) to complete the loading and conveying operation of the workpieces to be painted; S2. Grabbing and feeding the workpiece to be painted: the workpiece to be painted is transferred to the rotating bearing member (3) by the grabbing and feeding member (2) to complete the grabbing and feeding operation of the workpiece to be painted; S3, rotational positioning operation of the workpieces to be painted: after a plurality of groups of workpieces to be painted are placed on the rotating bearing member (3), the rotating bearing member (3) is opened to complete the positioning operation of the workpieces to be painted, and the workpieces to be painted are also rotated to change the painting position of each group of workpieces to be painted; S4, performing a first cycle of spraying operation on the workpiece to be sprayed: sequentially switching the spraying module from the first position to the second position through the shifting module, and then switching the spraying module from the second position to the third position through the shifting module, so as to complete the first cycle of spraying operation on the workpiece to be sprayed; S5, performing a second cycle of spraying operation on the workpiece to be painted: sequentially switching the spraying module from the third position to the second position through the shifting module, and then switching the spraying module from the second position to the first position through the shifting module, so as to complete the second cycle of spraying operation on the workpiece to be painted; S6, cyclic spraying operation of the workpiece to be painted: by moving the fourth ball screw linear module (41) forward, the modules to be painted are sequentially switched from the first cycle to the second cycle, and the cycle is repeated in the same way to complete the cyclic progressive spraying operation of the workpiece to be painted; S7, blowing air on the painted workpiece: when the fourth ball screw linear module (41) is gradually and progressively advanced, the blowing component (5) can be triggered to perform linkage operation, and when the fourth ball screw linear module (41) moves forward, the receiving component (6) can be pushed to perform blowing air on the painted workpiece, and when the fourth ball screw linear module (41) moves forward again, the receiving component (6) can be pushed again to perform blowing air on the painted workpiece, and the blowing frequency is greater than the first blowing frequency; S8. Collection of workpieces that have been painted: by arranging two sets of collecting components (6), when one set of collecting components (6) is in operation, it can grab and collect the workpieces that have been painted OK, and when the other set of collecting components (6) is in operation, it can grab and collect the workpieces that have been painted NG.

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