Automatic spraying device for outer frame of washing machine cover

Abstract

The present application discloses an automatic spraying device for the outer frame of a washing machine cover plate. When a rotating plate drives a stirring tank to rotate, the arc plate is also driven to rotate synchronously through a connected center rod. The paint that is separated from the accumulation by the stirring plate and scattered above the paint liquid surface will be cut and layered by the rotating arc plate during the falling process. A part of the paint will be taken away by the rotating arc plate, so that the scattered paint is further broken up, thereby improving the shearing effect and mixing effect of the paint. At the same time, a part of the paint that is separated from the accumulation by the stirring plate and scattered above the paint liquid surface will be scattered onto a deformable screen, and the paint will be divided and scattered from the mesh holes through the densely distributed mesh holes on the screen, thereby improving the dispersion effect. The part of the deformable screen that is wrapped by the bottom paint will be in direct contact with the stirred paint, thereby forming paint cutting at the mesh holes, thereby further improving the mixing and stirring effect.

Description

Technical Field

[0001] The present application relates to the field of mechanical processing technology, and in particular to an automatic spraying device for a washing machine cover frame. Background Art

[0002] When producing and processing the outer frame of the washing machine cover, the outer frame needs to be sprayed with paint, which can not only improve the appearance of the washing machine, but also be anti-corrosive, rust-proof, waterproof, dust-proof and increase durability through the sprayed paint. For this reason, most manufacturers now complete the spraying operation through automatic paint spraying equipment.

[0003] The automatic spraying device is mainly based on the automatic control system and spraying system. It adopts PLC control program to provide intelligent control system. The paint is put into the paint tank and the paint in the paint tank is automatically stirred by the stirring device. Then the paint evenly stirred in the paint tank is transported to the spray gun by the pump pipe. The position of the spray gun is adjusted by the designed guide rail, pulley and other driving devices. Then the paint is atomized by the atomization device on the spray gun and attached to the surface of the workpiece to complete the spraying.

[0004] In this automated operation process, the automatic stirring device used is generally a vertical stirring device. Stirring is completed by setting stirring blades from top to bottom in the tank and starting the motor to rotate the stirring blades. However, this single stirring blade stirring has a good stirring effect on the paint around the stirring blades, but a poor stirring effect on the paint far away from the stirring blades, and stratification is serious. It is necessary to set up an additional displacement device to continuously change the position of the stirring blades in order to effectively contact and stir the paint at the bottom, top and side of the tank, which will undoubtedly prolong the stirring time. Summary of the invention

[0005] The present application proposes an automatic spraying device for the outer frame of a washing machine cover, which is provided with a stirring plate for stirring the paint for mixing, the stirring plate drives a part of the paint to be lifted up, the lifted paint is transferred and then scattered back into the paint accumulated at the bottom, the scattered paint falls on the part of the deformable screen above the liquid level and is cut and dispersed by the mesh holes, the accumulated paint is dispersed, cut and mixed through the mesh holes of the deformable screen when being stirred, the rotating arc plate cuts and transfers the scattered paint, the rotating arc plate stirs and mixes the paint accumulated at the bottom, the rotating arc plate toggles the shaping rod to cooperate with the scattered paint to drive the deformable screen to deform and move its position, the deformed and displaced deformable screen has the advantages of cutting, dispersing and mixing the paint in more directions, and is used to solve the problem that the existing paint mixer has a single stirring position and poor stirring effect.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions: an automatic spraying device for the outer frame of a washing machine cover plate, comprising a motor assembly for providing power and a base frame for providing support force, wherein a processing tank is arranged on the base frame; the processing tank comprises a stirring tank for providing a processing place, a stirring plate evenly distributed on the inner wall of the stirring tank, a fixed plate movably sealed at one end of the stirring tank, and a rotating plate fixedly sealed at the other end of the stirring tank, wherein the rotating plate and the stirring tank are movably arranged on the base frame, the fixed plate is fixedly arranged on the base frame, the rotating plate is connected to the output end of the motor assembly, and is used to receive power to drive the stirring tank to rotate; a central stirring device is arranged in the stirring tank, comprising a central rod movably inserted into the rotating plate and an arc plate arranged on the central rod, which is used to stir the paint at the center position of the stirring tank; uniformly distributed shaping rods are arranged in the stirring tank, and a circumferentially penetrating through-slit is opened on the shaping rod, and a deformable screen is sleeved in the through-slit for dividing and mixing the paint.

[0007] Furthermore, an annular sealing ring groove is provided at one end of the fixed plate facing the stirring tank, and an end of the stirring tank away from the rotating plate is movably inserted into the sealing ring groove to provide a relative rotation space between the stirring tank and the fixed plate. A feed port is provided at the top of the fixed plate, and a discharge pipe is provided at the bottom of the fixed plate to provide a channel for inputting and discharging the paint.

[0008] Furthermore, an annular movable ring groove is provided at one end of the fixed plate facing the rotating plate, and an end of the center rod away from the rotating plate is inserted into the movable ring groove. The width of the movable ring groove is equal to the diameter of the center rod, which is used to limit the position of the center rod and provide space for relative rotation between the center rod and the fixed plate. A torsion spring is provided at one end of the center rod inserted into the rotating plate, and a space for the torsion spring to move is provided in the rotating plate, which is used to provide power for the center rod to rotate and reset.

[0009] Furthermore, the cross-section of the arc plate is arc-shaped, and one end of the arc plate that enters the coating at the bottom of the processing chamber is away from the axial center of the processing chamber, and the other end of the arc plate is close to the axial center of the processing chamber, which is used to change the angle of the arc plate to affect the surrounding structure and coating.

[0010] Furthermore, a circular separation plate is movably arranged at the center of one end of the rotating plate facing the fixed plate, and expansion holes II are evenly distributed circumferentially opened on the separation plate. An expansion hole I is evenly distributed circumferentially opened at the center of one end of the fixed plate facing the rotating plate, and the expansion holes I and expansion holes II are symmetrical.

[0011] Furthermore, the two ends of the shaping rod are respectively inserted into the expansion hole I and the expansion hole II, which are used to limit the movable position of the shaping rod. The diameter values ​​of the expansion hole I and the expansion hole II are the same, and the diameter value is larger than the diameter value of the shaping rod, which is used to limit the movable space of the shaping rod. The bottom of both sides of the shaping rod inserted into the two expansion holes are provided with reciprocating springs, and the other end of the reciprocating spring is connected to the inner wall of the expansion hole, which is used to provide power for resetting the shaping rod.

[0012] Furthermore, the deformable screen is cylindrical and has dense mesh holes for providing a coating separation path.

[0013] Furthermore, the shaping rod is closer to the axial center of the processing chamber than the central rod, and one end of the arc plate close to the axial center of the processing chamber is close to the deformation screen, so that the arc plate contacts the shaping rod.

[0014] The present application provides an automatic spraying device for the outer frame of a washing machine cover. The device puts the paint into a horizontal stirring tank. The stirring plate arranged on the inner wall of the stirring tank will stir the surrounding paint during the rotation of the stirring tank, and drive a part of the paint to be lifted up, separate from the paint accumulated at the bottom, and scatter back to the paint layer from above the paint liquid surface. In this way, the paint in different areas is stirred and mixed by stirring the paint, dividing the paint and transferring the position of the paint, thereby improving the stirring effect of the paint.

[0015] At the same time, when the rotating plate drives the stirring tank to rotate, it will also drive the arc plate to rotate synchronously through the connected center rod. The paint that is driven by the stirring plate to separate from the accumulated paint and then scattered above the paint liquid surface will be cut and layered by the rotating arc plate during the falling process. Part of the paint will be taken away by the rotating arc plate, so that the scattered paint will be further broken up, thereby improving the shearing effect and mixing effect of the paint.

[0016] At the same time, the agitating plate drives the paint away from the accumulation, and the paint that is scattered above the paint liquid surface, part of which will be scattered onto the deformable screen, and through the dense mesh holes on the screen, the paint will be divided and scattered from the mesh holes, thereby improving the dispersion effect. The part of the deformable screen wrapped by the bottom paint will come into direct contact with the agitated paint, forming paint cutting at the mesh holes, thereby further improving the mixing and stirring effect.

[0017] At the same time, one side of the arc plate is close to the deformable screen, and the other side is far away from the deformable screen. Therefore, during the rotation of the arc plate, the side close to the deformable screen will contact the paint accumulated on the deformable screen, causing this part of the paint to be carried away and dispersed. At the same time, the side close to the deformable screen will contact the shaping rod, exerting a force in the rotation direction on the shaping rod, thereby causing the shaping rod to displace and pull the deformable screen to deform and displace. After the arc plate is separated from the shaping rod, the reciprocating spring will drive the shaping rod to reset and pull the deformable screen to reset the deformation and displacement again, causing the paint on the deformable screen to be divided and broken up through the meshes of different apertures during the reciprocating deformation and displacement of the screen, shifting its position and improving the mixing effect.

[0018] Due to the viscosity of the paint, the paint on the deformable screen separates from the holes of the screen slowly and falls down. Therefore, the deformable screen is squeezed at the top of the deformable screen to expand and deform downward. At this time, the shaping rods around the paint accumulation will move downward. At the same time, the other parts of the deformable screen will be stretched due to the influence of the top deformation expansion, so that the deformable screen pulls the shaping rods to move toward the center of the separation plate, which reduces the contact area between all shaping rods and the passing arc plate, or even does not contact. However, when the arc plate enters the bottom of the mixing tank, When there is paint accumulated at the bottom of the mixing tank, the end of the arc plate away from the deformable screen will be affected by the reaction force of the paint, and the arc plate will rotate with the center rod as the rotation center, so that the end of the arc plate close to the deformable screen is closer to the deformable screen, so that the arc plate in the paint accumulated at the bottom of the mixing tank can still contact the shaping rod with a large area, so that the contacted shaping rod is displaced, and the deformable screen is pulled to displace and deform, so that the part of the deformable screen where the paint is accumulated on the top is deformed and displaced under the tension, further ensuring the multi-directional transportation and multi-point segmentation of the paint, and improving the mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0020] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure distribution of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure distribution of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the stirring tank of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the shaping rod and the deformable screen of the present invention;

[0025] Figure 5 This is a schematic diagram of the fixing plate structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the rotating plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the arc plate structure position of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the shaping rod of the present invention;

[0029] Fig. 9 It is a schematic diagram of the center rod and arc plate structure of the present invention.

[0030] Among them: 1. Motor assembly; 2. Base frame; 3. Mixing tank; 4. Processing chamber; 5. Stirring plate; 6. Fixed plate; 61. Feed inlet; 62. Discharge pipe; 63. Sealing ring groove; 64. Movable ring groove; 65. Expansion hole I; 7. Rotating plate; 8. Separation plate; 81. Expansion hole II; 9. Forming rod; 91. Through seam; 10. Reciprocating spring; 11. Deformation screen; 12. Center rod; 13. Arc plate; 14. Torsion spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] Embodiment 1

[0033] See also Figure 1 , including a motor assembly 1, a base frame 2 is provided on one side of the motor assembly 1, arc-shaped grooves are opened at both ends of the base frame 2, and a circular rotating plate 7 is fixedly connected to the output end of the motor assembly 1 by bolts, and the rotating plate 7 is movably sleeved in the groove opened on the base frame 2 near the motor assembly 1, so that after the motor assembly 1 is started, it can drive the rotating plate 7 to rotate under the support of the groove of the base frame 2.

[0034] See also Figures 1 to 3The end of the rotating plate 7 away from the motor assembly 1 is fixedly connected to the stirring tank 3 by bolts, so that when the rotating plate 7 rotates, it can drive the stirring tank 3 to rotate synchronously. The stirring tank 3 is composed of two symmetrical semicircular cylinders fixedly spliced ​​together, so that the stirring tank 3 can be disassembled and opened in half, which is convenient for the installation and disassembly of other structures in the stirring tank 3. The inner wall of the stirring tank 3 is welded with uniformly distributed stirring plates 5. A processing chamber 4 for stirring the paint is formed in the stirring tank 3, so that when the stirring tank 3 rotates, it can drive the stirring plate 5 to rotate synchronously, thereby stirring the paint in the processing chamber 4. The processing chamber 4 is stirred because the processing chamber 4 is not filled with paint at this time. Therefore, when the stirring plate 5 rotates upward to leave the accumulated paint, it will drive a part of the paint to separate from the large group and be lifted upward to form a tearing separation. In the process of continuing to rotate upward, the entrained paint will gradually separate from the stirring plate 5 and scatter downward. Due to the viscosity of the paint, this scattering is not completed instantly, but gradually detached. In other words, the paint on the same stirring plate 5 falls to different points, thereby completing the multi-point transportation of the paint and improving the multi-point mixing effect of the paint.

[0035] See also Figure 1 to Figure 2 , Figure 5 A circular fixing plate 6 is fixedly sleeved in the groove at one end of the base frame 2 away from the motor assembly 1, and an annular sealing ring groove 63 is provided at one end of the fixing plate 6 facing the stirring tank 3. The end of the stirring tank 3 away from the rotating plate 7 is movably inserted into the sealing ring groove 63, and the sealing ring groove 63 is provided with a sealing ring, so that when the stirring tank 3 rotates, it will not drive the fixing plate 6 to rotate synchronously, but the fixing plate 6 can still cooperate with the rotating plate 7 to seal the processing chamber 4, and a feed port 61 is provided on the top of the fixing plate 6, so that the paint to be stirred can be put into the processing chamber 4 through the feed port 61, and a discharge pipe 62 is fixedly connected to the bottom of the fixing plate 6, so that the stirred paint can be discharged to the spray gun through the discharge pipe 62.

[0036] Embodiment 2

[0037] See also Figure 2 , Figures 5 to 7 , Fig. 9 On the basis of the first embodiment, a center rod 12 is movably sleeved on one end of the rotating plate 7 facing the fixed plate 6, so that the rotating plate 7 can drive the center rod 12 to rotate synchronously when it rotates. An annular movable ring groove 64 is opened on the end of the fixed plate 6 facing the rotating plate 7. The other end of the center rod 12 is inserted into the movable ring groove 64. The width of the movable ring groove 64 is equal to the diameter of the center rod 12. When the center rod 12 rotates with the rotating plate 7, the other end can rotate in the ring formed by the movable ring groove 64. When one end of the center rod 12 is supported by the rotating plate 7 and the other end is supported by the movable ring groove 64, it can still rotate.

[0038] See also Figure 2 , Figure 7 , Fig. 9 , an arc plate 13 is fixedly connected to the center rod 12, and the cross section of the arc plate 13 is arc-shaped. The end of the arc plate 13 that enters the paint at the bottom of the processing chamber 4 is away from the axial center of the processing chamber 4, and the other end of the arc plate 13 is close to the axial center of the processing chamber 4. A torsion spring 14 is arranged at one end of the center rod 12 that is inserted into the rotating plate 7. A space for the torsion spring 14 to move is provided in the rotating plate 7, so that when the center rod 12 rotates with the rotating plate 7, the arc plate 13 can be driven to rotate synchronously. When the arc plate 13 enters the paint accumulated at the bottom of the processing chamber 4 from the vacant space above the processing chamber 4, the paint will be stirred. At the same time, since the arc plate 13 is in an inclined state, the end of the arc plate 13 that is first inserted into the paint is affected by the paint The resistance is greater, therefore, it will drive the center rod 12 to rotate. At this time, the end of the arc plate 13 close to the axial center of the processing chamber 4 is closer to the axial center, and the end of the arc plate 13 away from the axial center of the processing chamber 4 is farther away from the axial center, forming a larger inclination angle. Therefore, the arc plate 13 has a larger stirring area for the paint, which improves the stirring effect. At this time, the torsion spring 14 stores energy. When the center rod 12 drives the arc plate 13 to leave the accumulated paint, the energy-stored torsion spring 14 will drive the center rod 12 and the arc plate 13 to rotate and reset. At this time, the arc plate that continues to rotate with the center rod 12 will cut and pull the scattered paint, further shear stirring the paint and transfer the position, thereby improving the mixing effect.

[0039] Embodiment 3

[0040] See also Figure 2 , Figures 5 to 7 On the basis of the second embodiment, a circular separation plate 8 is movably sleeved at the center of one end of the rotating plate 7 facing the fixed plate 6, so that when the rotating plate 7 rotates, it will not drive the separation plate 8 to rotate synchronously. The separation plate 8 is provided with uniformly distributed expansion holes II81 in the circumferential direction, and the fixed plate 6 is provided with uniformly distributed expansion holes I65 in the circumferential direction at the center of one end of the rotating plate 7, and the expansion holes I65 and the expansion holes II81 are symmetrical.

[0041] See also Figure 2 , Figures 4 to 8A circumferentially uniformly distributed shaping rod 9 is movably sleeved in the processing cavity 4, one end of the shaping rod 9 is inserted into the expansion hole Ⅰ65, and the other end is inserted into another symmetrical expansion hole Ⅱ81, the diameter value of the expansion hole Ⅰ65 and the expansion hole Ⅱ81 is the same, and the diameter value is greater than the diameter value of the shaping rod 9, so that the shaping rod 9 can be restricted by the position of the expansion hole Ⅰ65 and the expansion hole Ⅱ81, but the shaping rod 9 can still move in the two expansion holes (expansion hole Ⅰ65 and expansion hole Ⅱ81), and the bottoms of both sides of the shaping rod 9 inserted into the two expansion holes are fixedly connected with reciprocating springs 10, and the other end of the reciprocating spring 10 is fixedly connected to the inner wall of the expansion hole, so that the reciprocating spring 10 restricts the shaping rod 9 in the two expansion holes. When the shaping rod 9 moves under the action of external force, work will be done on the reciprocating spring 10, so that the reciprocating spring 10 accumulates energy. When the shaping rod 9 loses the external force, the accumulated reciprocating spring 10 will drive the shaping rod 9 to reset and move.

[0042] See also Figure 4 , Figure 8 A circumferentially penetrating through-slot 91 is provided in the shaping rod 9, and a deformable screen 11 is movably sleeved in the through-slot 91. The deformable screen 11 is cylindrical, and dense mesh holes are provided on the deformable screen 11. The deformable screen 11 passes through the through-slot 91 of all the shaping rods 9. The deformable screen 11 is made of an elastic material, such as rubber, so that the shaping rods 9 evenly distributed around the circumference pull up the deformable screen 11 to form a cylindrical shape, so that the shaping rods 9 and the bottom of the deformable screen 11 at the bottom are buried by the paint accumulated at the bottom. When the paint accumulated at the bottom is stirred, the paint passing through the deformable screen 11 will be cut and separated by the mesh holes of the deformable screen 11, thereby improving the mixing effect, and the top position of the deformable screen 11 that is not buried At this time, part of the scattered paint will fall on the deformable screen 11. At this time, this part of the paint will be separated through the mesh holes of the deformable screen 11, further improving the effect of breaking up and mixing. At the same time, due to the viscosity of the paint, the paint falling on the deformable screen 11 leaves the mesh holes slowly, which will cause the accumulation of paint. At this time, the accumulated paint will cause this part of the deformable screen 11 to be pulled downward and deformed, so that the deformable screen 11 pulls the shaping rod 9 at the bottom to move upward and the shaping rod 9 close to the top to move downward. The change in position will affect the direction of the resistance to the paint and change the movement direction of the paint. A more complex movement direction will further increase the degree of turbulence and improve the mixing effect.

[0043] See also Figure 2 , Figure 7, the shaping rod 9 is closer to the axial center of the processing chamber 4 than the center rod 12, and the end of the arc plate 13 close to the axial center of the processing chamber 4 is close to the deformable screen 11, so that when the center rod 12 drives the arc plate 13 to rotate in a circle, the end of the arc plate 13 close to the deformable screen 11 will scrape the paint accumulated on the deformable screen 11, and hit the shaping rod 9, pulling the shaping rod 9 to move a distance in the rotation direction of the arc plate 13, so that the shaping rod 9 pulls the deformable screen 11 to deform, and the reciprocating spring 10 stores energy, at this time, the reaction force will push the arc plate 13, which rotates with the center rod 12 as the center, and gradually separates from the contacting shaping rod 9. The torsion spring 14 stores energy. When the arc plate 13 leaves the shaping rod 9, the reciprocating spring 10 will drive the shaping rod 9 to reset, so that the shaping rod 9 pulls the deformable screen 11 to reset, thereby making the mesh size of the deformable screen 11 constantly change, and the position angle constantly change, thereby improving the various states and angle directions of the contacting paint being dispersed, and further improving the mixing effect.

Claims

1. An automatic spraying device for the outer frame of a washing machine cover, characterized in that: It comprises a motor assembly (1) for providing power and a base frame (2) for providing support force, wherein a processing tank is arranged on the base frame (2); The processing tank comprises a stirring tank (3) providing a processing site, stirring plates (5) evenly distributed on the inner wall of the stirring tank (3), a fixed plate (6) movably sealed at one end of the stirring tank (3), and a rotating plate (7) fixedly sealed at the other end of the stirring tank (3); a processing chamber (4) is formed in the stirring tank (3); the rotating plate (7) and the stirring tank (3) are movably arranged on a base frame (2); the fixed plate (6) is fixedly arranged on the base frame (2); the rotating plate (7) is connected to the output end of the motor assembly (1) and is used to receive power to drive the stirring tank (3) to rotate; The stirring tank (3) is provided with a central stirring device, comprising a central rod (12) movably inserted into the rotating plate (7) and an arc plate (13) arranged on the central rod (12), and used for stirring the paint at the central position of the stirring tank (3); The stirring tank (3) is provided with uniformly distributed shaping rods (9), the shaping rods (9) are provided with circumferentially penetrating through slots (91), and a deformable screen (11) is sleeved in the through slots (91) for dividing and mixing the coating.

2. The automatic spraying device for the outer frame of a washing machine cover according to claim 1, characterized in that: An annular sealing groove (63) is provided at one end of the fixed plate (6) facing the stirring tank (3), and one end of the stirring tank (3) away from the rotating plate (7) is movably inserted into the sealing groove (63) to provide a relative rotation space between the stirring tank (3) and the fixed plate (6). A feed port (61) is provided at the top of the fixed plate (6), and a discharge pipe (62) is provided at the bottom of the fixed plate (6) to provide a channel for inputting and discharging paint.

3. The automatic spraying device for the outer frame of a washing machine cover according to claim 1, characterized in that: An annular movable ring groove (64) is provided at one end of the fixed plate (6) facing the rotating plate (7); an end of the center rod (12) away from the rotating plate (7) is inserted into the movable ring groove (64); the width of the movable ring groove (64) is equal to the diameter of the center rod (12), and is used to limit the position of the center rod (12) and provide space for relative rotation of the center rod (12) and the fixed plate (6); a torsion spring (14) is provided at one end of the center rod (12) inserted into the rotating plate (7); a space for the torsion spring (14) to move is provided in the rotating plate (7), and is used to provide power for the center rod (12) to rotate and reset.

4. The automatic spraying device for the outer frame of the washing machine cover according to claim 3, characterized in that: The cross section of the arc plate (13) is arc-shaped, and one end of the arc plate (13) that is rotated into the bottom coating of the processing chamber (4) is away from the axial center of the processing chamber (4), and the other end of the arc plate (13) is close to the axial center of the processing chamber (4), so as to change the angle of the arc plate (13) and thus affect the surrounding structure and coating.

5. The automatic spraying device for the outer frame of a washing machine cover according to claim 1, characterized in that: A circular separation plate (8) is movably arranged at the center of one end of the rotating plate (7) facing the fixed plate (6), and expansion holes II (81) are evenly distributed circumferentially opened on the separation plate (8). An expansion hole I (65) is evenly distributed circumferentially opened at the center of one end of the fixed plate (6) facing the rotating plate (7), and the expansion hole I (65) and the expansion hole II (81) are symmetrical.

6. The automatic spraying device for the outer frame of the washing machine cover according to claim 5, characterized in that: The two ends of the shaping rod (9) are respectively inserted into the expansion hole I (65) and the expansion hole II (81) to limit the movable position of the shaping rod (9); the diameters of the expansion hole I (65) and the expansion hole II (81) are the same and larger than the diameter of the shaping rod (9) to limit the movable space of the shaping rod (9); the bottoms of both sides of the shaping rod (9) inserted into the two expansion holes are provided with reciprocating springs (10); the other end of the reciprocating spring (10) is connected to the inner wall of the expansion hole to provide power for resetting the shaping rod (9).

7. The automatic spraying device for the outer frame of a washing machine cover according to claim 1, characterized in that: The deformable screen (11) is cylindrical and is provided with dense mesh holes for providing a coating separation path.

8. The automatic spraying device for the outer frame of a washing machine cover according to claim 1, characterized in that: The shaping rod (9) is closer to the axial center of the processing chamber (4) than the center rod (12), and one end of the arc plate (13) close to the axial center of the processing chamber (4) is close to the deformation screen (11), so that the arc plate (13) contacts the shaping rod (9).

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