Device and method for automatically coating film on surface of lighting appliance

Abstract

The invention belongs to the technical field of lighting lamp processing, and particularly relates to a lighting fixture surface automatic film covering device and method.The lighting fixture surface automatic film covering device comprises a workbench, a supporting frame arranged on the outer surface of the workbench, a first conveying belt and a second conveying belt, and the first conveying belt and the second conveying belt are arranged on the two sides of the workbench; hemispherical lighting lamp shells are conveyed on the upper surfaces of the first conveying belt and the second conveying belt, detection equipment is arranged on the surface of the second conveying belt, a conveying mechanism is arranged on the inner surface of the supporting frame, a clamping mechanism is arranged on the surface of the conveying mechanism, a film covering mechanism is arranged on the upper surface of the supporting frame, and a cutting mechanism is fixedly installed on the upper surface of the workbench. According to the automatic film covering device and method for the surface of the lighting device, by arranging the cutting mechanism, a cutter conducts cutting along the surface of a hemispherical lighting lamp shell, the cutting edge of a protective film is smooth and free of wrinkles, and the automatic film covering device and method are matched with the film covering mechanism and suitable for conducting film covering on the surface of a hemispherical lighting lamp.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting fixture processing, and in particular to a lighting fixture surface automatic coating device and method. Background Art

[0002] Lighting fixtures refer to a series of products and equipment used for lighting. During the processing of lighting fixtures, a protective film needs to be applied to the surface of the lighting fixtures. The coating can protect the lighting fixtures from dust, oil, corrosion, etc., and also enhance the aesthetics of the product.

[0003] However, when the coating devices of existing lighting fixtures are used, most of them are subjected to a coating treatment, that is, the lighting fixture is wrapped with a protective film, and then the protective film is cut by moving a cutter up and down. However, this step cannot make the protective film effectively fit the surface of the lamp, and also causes waste of materials and increases production costs. At the same time, subsequent coating may cause problems such as wrinkles or uneven edges, and it is not suitable for hemispherical lighting fixtures, thereby affecting production efficiency. Summary of the invention

[0004] Based on the fact that existing laminating devices are not suitable for hemispherical lighting fixtures, and most of them are used to cover the lighting fixtures, so that the protective film cannot fit the surface of the lamp, resulting in wrinkles and uneven edges during the laminating process, the present invention proposes an automatic laminating device and method for the surface of lighting fixtures.

[0005] The present invention proposes an automatic coating device for the surface of a lighting fixture, comprising a workbench, a support frame arranged on the outer surface of the workbench, and a first conveyor belt and a second conveyor belt arranged on both sides of the workbench, the inner surface of the support frame is provided with a protective film through a roller, the upper surfaces of the first conveyor belt and the second conveyor belt transport a hemispherical lighting fixture shell, the surface of the second conveyor belt is provided with a detection device, the inner surface of the support frame is provided with a transport mechanism, the surface of the transport mechanism is provided with a clamping mechanism, the upper surface of the support frame is provided with a coating mechanism, and the upper surface of the workbench is fixedly mounted with a cutting mechanism.

[0006] Wherein, the transport mechanism comprises a screw rod, and the rotation of the screw rod drives the clamping mechanism to move linearly.

[0007] Wherein, the clamping mechanism comprises clamping plates which are symmetrically distributed, and the surface of the lighting fixture shell is clamped by relative movement of two clamping plates.

[0008] Wherein, the coating mechanism comprises an elastic silicone head, through which the protective film is driven to adhere to the surface of the lighting fixture shell.

[0009] Wherein, the cutting mechanism comprises a cutter, and the protective film covering the surface of the lighting fixture shell is cut off by the cutter.

[0010] Preferably, the transport mechanism also includes grooves symmetrically distributed on the inner surface of the support frame, and the two ends of the two screws are respectively installed on the inner walls of the two grooves through bearings. Two driving motors are fixedly installed on the one side surface of the support frame, and one end of the output shaft of the driving motor is fixedly sleeved with one end of the screw through a rotating shaft. A slider is threadedly sleeved on the surface of the screw, and the surface of the slider is slidably engaged with the inner wall of the groove.

[0011] Through the above technical solution, the rotation of the output shaft of the driving motor drives the screw connected thereto to rotate through the rotating shaft, and the rotation of the screw drives the slider connected thereto to move on the screw along the inner wall of the groove.

[0012] Preferably, the clamping mechanism also includes a slide rail group symmetrically distributed and fixedly installed on the surface of the support frame, the slide rail group is composed of two slide rails, and the moving blocks on the surfaces of the two slide rail groups are fixedly connected with a concave support plate, the inner surface of the concave support plate is provided with a telescopic frame, and the surface of the slider is provided with a slot, the surface of the telescopic frame is slidably engaged with the inner wall of the slot, and the clamping plate is fixedly connected to the side surface of the telescopic frame away from the concave support plate.

[0013] Through the above technical solution, the movement of the slider drives the telescopic frame connected to it to move through the slot, the movement of the telescopic frame drives the clamping plate to move, and at the same time the movement of the telescopic frame drives the concave support plate to move, and the movement of the concave support plate causes the moving block to move along the surface of the slide rail.

[0014] Preferably, the upper and lower surfaces of the telescopic frame are fixedly connected to limit strips, the inner surface of the concave support plate is provided with limit grooves symmetrically distributed up and down, and the surface of the limit strip is slidably engaged with the inner wall of the limit groove.

[0015] Through the above technical solution, the setting of the limiting strip and the limiting groove enables the movement of the telescopic frame to drive the movement of the concave support plate.

[0016] Preferably, a pushing cylinder is fixedly mounted on one side surface of the two concave support plates away from the support frame, and one end of the piston rod of the two pushing cylinders extends into the concave support plate and is fixedly connected to the one side surface of the telescopic frame close to the concave support plate.

[0017] Through the above technical solution, the extension and retraction of the cylinder piston rod drives the telescopic frame connected thereto to move, and the movement of the telescopic frame drives the clamping plate to move, so that the clamping plate is convenient for approaching or moving away from the lighting fixture housing.

[0018] Preferably, a sliding groove is formed through the surface of the support frame, and the surface of the telescopic frame is slidably engaged with the sliding groove and the inner wall of the locking groove respectively.

[0019] Through the above technical solution, the sliding groove and the clamping groove limit the movement of the telescopic frame.

[0020] Preferably, the coating mechanism also includes a telescopic cylinder fixedly mounted on the upper surface of the support frame, the inner top surface of the support frame is fixedly connected to a limiting shell, the surface of the elastic silicone head is slidably connected to the inner wall of the limiting shell, and the piston rod of the telescopic cylinder passes through the support frame and is fixedly connected to the upper end of the elastic silicone head.

[0021] Through the above technical solution, the extension and retraction of the piston rod of the telescopic cylinder drives the elastic silicone head connected thereto to move up and down along the inner wall of the limit shell.

[0022] Preferably, the cutting mechanism also includes a mounting groove provided on the upper surface of the workbench, a fixed concave ring is fixedly installed on the inner wall of the mounting groove, a gear ring is fixedly installed in the concave groove of the fixed concave ring, a concave seat is provided on the outer surface of the fixed concave ring, a servo motor is fixedly installed on the bottom of the concave seat, a gear is installed on the inner surface of the concave seat through a bearing, one end of the output shaft of the servo motor is fixedly sleeved with the axis center of the gear, the gear is meshed with the gear ring, and the tool is installed on the upper surface of the concave seat.

[0023] Through the above technical solution, the rotation of the servo motor output shaft drives the gear connected to it to rotate. The rotation of the gear drives the gear to move along the surface of the gear ring through meshing with the gear ring, thereby driving the concave seat to move along the surface of the fixed concave ring, so that the tool cuts the protective film.

[0024] Preferably, the inner surface of the concave seat is symmetrically fixed with limit wheels and limit blocks, the inner and outer surfaces of the fixed concave ring are provided with guide grooves, and the surfaces of the limit wheels and the limit blocks are slidably engaged with the inner walls of the two guide grooves respectively.

[0025] Through the above technical solution, the sliding engagement between the limiting wheel and the limiting block and the guide groove limits the movement of the concave seat.

[0026] The present invention provides a coating method for an automatic coating device on the surface of a lighting fixture, and the coating method comprises: S1. When in use, the lighting fixture shell that needs to be coated is transported through the first conveyor belt, and then the pushing cylinder is started. The extension of the two pushing cylinder piston rods drives the telescopic frame connected to it to move along the inner wall of the slide groove and the card groove. The movement of the telescopic frame drives the clamping plate to move, so that the clamping plate is close to the lighting fixture shell and clamps the lighting fixture shell.

[0027] S2. Then start the driving motor, and the rotation of the output shaft of the driving motor drives the screw connected to it to rotate through the rotating shaft. The rotation of the screw drives the slider connected to it to move on the screw along the inner wall of the groove. The movement of the slider drives the telescopic frame to move. The movement of the telescopic frame drives the clamping plate to move. At the same time, the movement of the telescopic frame drives the concave support plate to move. The movement of the concave support plate drives the push cylinder to move. The movement of the concave support plate makes the moving block move along the surface of the slide rail, so that the clamped lighting fixture shell is transported to the workbench. Then the driving motor stops running and the piston rod of the push cylinder is reset.

[0028] S3, then start the telescopic cylinder, and the elastic silicone head connected to the telescopic cylinder is driven to move down along the inner wall of the limit shell by extending the piston rod of the telescopic cylinder, so that the protective film is covered on the lighting fixture shell.

[0029] S4, then drive the servo motor, and the rotation of the servo motor output shaft drives the gear connected to it to rotate. The rotation of the gear drives the gear to move along the surface of the gear ring through the engagement with the gear ring, thereby driving the concave seat to move along the inner wall of the guide groove through the limiting wheel and the limiting plate, and then the concave seat moves along the surface of the fixed concave ring. The circular motion of the concave seat drives the tool to rotate synchronously, which is convenient for the tool to cut the protective film.

[0030] S5. After the coating is completed, the cylinder is pushed out again to drive the clamping plate to clamp the coated lighting fixture shell, and the driving motor is started to transport the coated lighting fixture shell to the second conveyor belt, and the lighting fixture shell is transported along the second conveyor belt, so that the detection equipment can detect the coating status.

[0031] The beneficial effects of the present invention are: 1. By setting up a laminating mechanism, the softness and elasticity of the elastic silicone head are utilized to facilitate the protective film to be attached to the surface of the hemispherical lighting fixture, thereby avoiding excessive waste of protective film, saving resources, and reducing production costs.

[0032] 2. By setting up a cutting mechanism, the tool is made to cut along the surface of the hemispherical lighting fixture shell, so that the cutting edge of the protective film is smooth and wrinkle-free, and cooperates with the laminating mechanism, which is suitable for laminating the surface of the hemispherical lighting fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of an automatic coating device for the surface of a lighting fixture proposed by the present invention; Figure 2 A three-dimensional diagram of the limit housing structure of an automatic film coating device for the surface of a lighting fixture proposed by the present invention; Figure 3 A three-dimensional diagram of the structure of the elastic silicone head of an automatic film coating device for the surface of a lighting fixture proposed by the present invention; Figure 4 A three-dimensional diagram of the structure of a clamping plate of an automatic film coating device for the surface of a lighting fixture proposed by the present invention; Figure 5 A three-dimensional diagram of the screw structure of an automatic film coating device for the surface of a lighting fixture proposed by the present invention; Figure 6 A three-dimensional diagram of the telescopic frame structure of an automatic film coating device for the surface of a lighting fixture proposed by the present invention; Figure 7 A three-dimensional diagram of the structure of a slider of an automatic coating device for the surface of a lighting fixture proposed by the present invention; Figure 8 A three-dimensional diagram of the working table structure of an automatic coating device for the surface of a lighting fixture proposed by the present invention; Fig. 9 A three-dimensional diagram of a fixed concave ring structure of an automatic coating device on the surface of a lighting fixture proposed by the present invention; Fig.10 A three-dimensional diagram of the concave seat structure of an automatic film coating device for the surface of a lighting fixture proposed by the present invention; Fig.11 This is a three-dimensional diagram of the gear structure of the automatic coating device on the surface of a lighting fixture proposed by the present invention.

[0034] In the figure: 1. workbench; 2. support frame; 3. first conveyor belt; 4. second conveyor belt; 5. protective film; 6. lighting fixture shell; 7. testing equipment; 8. screw; 81. groove; 82. drive motor; 83. slider; 9. clamping plate; 91. slide rail group; 92. concave support plate; 93. telescopic frame; 94. slot; 95. limit strip; 96. limit slot; 97. push cylinder; 98. slide slot; 10. elastic silicone head; 101. telescopic cylinder; 102. limit shell; 11. tool; 111. mounting groove; 112. fixed concave ring; 113. gear ring; 114. concave seat; 115. servo motor; 116. gear; 117. limit wheel; 118. limit block; 119. guide groove. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Reference Figure 1-Figure 11, an automatic film coating device for the surface of a lighting fixture, comprising a workbench 1, a support frame 2 arranged on the outer surface of the workbench 1, and a first conveyor belt 3 and a second conveyor belt 4 arranged on both sides of the workbench 1, the inner surface of the support frame 2 is provided with a protective film 5 through a roller, the upper surfaces of the first conveyor belt 3 and the second conveyor belt 4 transport a hemispherical lighting fixture shell 6, the surface of the second conveyor belt 4 is provided with a detection device 7, the inner surface of the support frame 2 is provided with a transport mechanism, the surface of the transport mechanism is provided with a clamping mechanism, the upper surface of the support frame 2 is provided with a film coating mechanism, and the upper surface of the workbench 1 is fixedly installed with a cutting mechanism.

[0037] In order to transport the lighting fixture housing 6 on the first conveyor belt 3 to the workbench 1, a transport mechanism is provided including a screw rod 8, and the rotation of the screw rod 8 drives the clamping mechanism to move linearly.

[0038] In order to drive the screw 8 to rotate, the transportation mechanism also includes grooves 81 symmetrically distributed on the inner surface of the support frame 2. The two ends of the two screws 8 are respectively installed on the inner walls of the two grooves 81 through bearings. Two driving motors 82 are fixedly installed on the surface of one side of the support frame 2. One end of the output shaft of the driving motor 82 is fixedly sleeved with one end of the screw 8 through a rotating shaft. A slider 83 is threadedly sleeved on the surface of the screw 8. The surface of the slider 83 is slidably engaged with the inner wall of the groove 81. The rotation of the output shaft of the driving motor 82 drives the screw 8 connected thereto to rotate through the rotating shaft. The rotation of the screw 8 drives the slider 83 connected thereto to move on the screw 8 along the inner wall of the groove 81.

[0039] In order to cooperate with the transport mechanism and facilitate the transport of the lighting fixture shell 6 on the first conveyor belt 3 to the workbench 1, the clamping mechanism includes clamping plates 9 symmetrically distributed, and the surface of the lighting fixture shell 6 is clamped by the relative movement of the two clamping plates 9.

[0040] In order to drive the lighting fixture shell 6 to move, the clamping mechanism also includes a slide rail group 91 symmetrically distributed and fixedly installed on the surface of the support frame 2. The slide rail group 91 is composed of two slide rails. The moving blocks on the surfaces of the two slide rail groups 91 are fixedly connected with a concave support plate 92. The inner surface of the concave support plate 92 is provided with a telescopic frame 93. The surface of the slider 83 is provided with a slot 94. The surface of the telescopic frame 93 is slidably engaged with the inner wall of the slot 94. The clamping plate 9 is fixedly connected to the side surface of the telescopic frame 93 away from the concave support plate 92. The movement of the slider 83 drives the movement of the telescopic frame 93 connected to it through the slot 94. The movement of the telescopic frame 93 drives the clamping plate 9 to move. At the same time, the movement of the telescopic frame 93 drives the concave support plate 92 to move. The movement of the concave support plate 92 causes the moving block to move along the surface of the slide rail.

[0041] In order to facilitate the movement of the telescopic frame 93 to drive the movement of the concave support plate 92, limit strips 95 are fixedly connected to the upper and lower surfaces of the telescopic frame 93, and the inner surface of the concave support plate 92 is symmetrically distributed with limit grooves 96, and the surface of the limit strip 95 is slidably engaged with the inner wall of the limit groove 96.

[0042] In order to facilitate clamping of the lighting fixture shell 6, a pushing cylinder 97 is fixedly installed on the side surface of the two concave support plates 92 away from the support frame 2. One end of the piston rod of the two pushing cylinders 97 extends into the concave support plate 92 and is fixedly connected to the side surface of the telescopic frame 93 close to the concave support plate 92. The telescopic frame 93 connected to it is moved by the extension and retraction of the piston rod of the pushing cylinder 97, and the movement of the telescopic frame 93 drives the clamping plate 9 to move, which facilitates the clamping plate 9 to approach or move away from the lighting fixture shell 6.

[0043] In order to limit the movement of the telescopic frame 93 , a sliding groove 98 is formed through the surface of the support frame 2 , and the surface of the telescopic frame 93 is slidably engaged with the inner wall of the sliding groove 98 and the locking groove 94 .

[0044] In order to make the protective film 5 fit the surface of the hemispherical lighting fixture shell 6, the provided coating mechanism includes an elastic silicone head 10, and the protective film 5 is driven to adhere to the surface of the lighting fixture shell 6 by the elastic silicone head 10.

[0045] In order to drive the elastic silicone head 10 to drive the protective film 5 to fit the surface of the lighting fixture shell 6, the laminating mechanism also includes a telescopic cylinder 101 fixedly installed on the upper surface of the support frame 2, the inner top surface of the support frame 2 is fixedly connected to the limiting shell 102, the surface of the elastic silicone head 10 is slidably connected to the inner wall of the limiting shell 102, the piston rod of the telescopic cylinder 101 passes through the support frame 2 and is fixedly connected to the upper end of the elastic silicone head 10, and the elastic silicone head 10 connected to it is driven to move up and down along the inner wall of the limiting shell 102 by the telescopic movement of the piston rod of the telescopic cylinder 101.

[0046] By providing a laminating mechanism, the softness and elasticity of the elastic silicone head 10 are utilized to facilitate the protective film 5 to be attached to the surface of the hemispherical lighting fixture, thereby avoiding excessive waste of the protective film 5, saving resources, and reducing production costs.

[0047] In order to cut the laminated protective film 5 along the edge of the lighting fixture shell 6 , the provided cutting mechanism includes a cutter 11 , and the protective film 5 covering the surface of the lighting fixture shell 6 is cut by the cutter 11 .

[0048] In order to drive the tool 11 to perform circular motion, the cutting mechanism also includes a mounting groove 111 opened on the upper surface of the workbench 1, and a fixed concave ring 112 is fixedly installed on the inner wall of the mounting groove 111, and a gear ring 113 is fixedly installed in the concave groove of the fixed concave ring 112. A concave seat 114 is provided on the outer surface of the fixed concave ring 112, and a servo motor 115 is fixedly installed on the bottom of the concave seat 114. A gear 116 is installed on the inner surface of the concave seat 114 through a bearing. One end of the output shaft of the servo motor 115 is fixedly sleeved with the axis of the gear 116, and the gear 116 is meshed with the gear ring 113. The tool 11 is installed on the upper surface of the concave seat 114, and the rotation of the output shaft of the servo motor 115 drives the gear 116 connected thereto to rotate. The rotation of the gear 116 drives the gear 116 to move along the surface of the gear ring 113 through the meshing with the gear ring 113, thereby driving the concave seat 114 to move along the surface of the fixed concave ring 112, so that the tool 11 cuts the protective film 5.

[0049] In order to limit the movement of the concave seat 114, limiting wheels 117 and limiting blocks 118 are symmetrically fixedly installed on the inner surface of the concave seat 114, and guide grooves 119 are provided on the inner and outer surfaces of the fixed concave ring 112. The surfaces of the limiting wheels 117 and the limiting blocks 118 are slidably engaged with the inner walls of the two guide grooves 119 respectively.

[0050] By setting up the cutting mechanism, the cutter 11 cuts along the surface of the hemispherical lighting fixture shell 6, so that the cut edge of the protective film 5 is smooth and wrinkle-free, and cooperates with the coating mechanism, which is suitable for coating the surface of the hemispherical lighting fixture.

[0051] Reference Figure 1-Figure 11 , a coating method of an automatic coating device on the surface of a lighting fixture, the coating method comprising: S1. When in use, the lighting fixture shell 6 to be coated is transported through the first conveyor belt 3, and then the push cylinder 97 is started. The two piston rods of the push cylinder 97 are extended to drive the telescopic frame 93 connected thereto to move along the inner wall of the slide groove 98 and the card groove 94. The movement of the telescopic frame 93 drives the clamping plate 9 to move, so that the clamping plate 9 is close to the lighting fixture shell 6 and clamps the lighting fixture shell 6. S2, then start the driving motor 82, and the output shaft of the driving motor 82 rotates through the rotating shaft to drive the screw 8 connected thereto to rotate, and the rotation of the screw 8 drives the slider 83 connected thereto to move along the inner wall of the groove 81 on the screw 8, and the movement of the slider 83 drives the telescopic frame 93 to move, and the movement of the telescopic frame 93 drives the clamping plate 9 to move, and at the same time, the movement of the telescopic frame 93 drives the concave support plate 92 to move, and the movement of the concave support plate 92 drives the push cylinder 97 to move, and the movement of the concave support plate 92 makes the moving block move along the surface of the slide rail, so that the clamped lighting fixture shell 6 is transported to the workbench 1, and then the driving motor 82 stops running, and the piston rod of the push cylinder 97 is reset; S3, then start the telescopic cylinder 101, and the elastic silicone head 10 connected thereto is driven to move downward along the inner wall of the limiting housing 102 by extending the piston rod of the telescopic cylinder 101, so that the protective film 5 is covered on the housing 6 of the lighting fixture; S4, then drive the servo motor 115, and the rotation of the output shaft of the servo motor 115 drives the gear 116 connected thereto to rotate. The rotation of the gear 116 drives the gear 116 to move along the surface of the gear ring 113 through the meshing with the gear ring 113, thereby driving the concave seat 114 to move along the inner wall of the guide groove 119 through the limiting wheel 117 and the limiting plate, and then the concave seat 114 moves along the surface of the fixed concave ring 112. The circular motion of the concave seat 114 drives the tool 11 to rotate synchronously, so that the tool 11 can cut the protective film 5; S5. After the coating is completed, the cylinder 97 is pushed out again to drive the clamping plate 9 to clamp the coated lighting fixture shell 6, and the driving motor 82 is started to transport the coated lighting fixture shell 6 to the second conveyor belt 4. The lighting fixture shell 6 is transported along the second conveyor belt 4, which is convenient for the detection device 7 to detect the coating status.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic coating device for the surface of a lighting fixture, comprising a workbench (1), a support frame (2) arranged on the outer surface of the workbench (1), and a first conveyor belt (3) and a second conveyor belt (4) arranged on both sides of the workbench (1), characterized in that: The inner surface of the support frame (2) is provided with a protective film (5) via a roller, the upper surfaces of the first conveyor belt (3) and the second conveyor belt (4) transport a hemispherical lighting fixture shell (6), the surface of the second conveyor belt (4) is provided with a detection device (7), the inner surface of the support frame (2) is provided with a transport mechanism, the surface of the transport mechanism is provided with a clamping mechanism, the upper surface of the support frame (2) is provided with a coating mechanism, and the upper surface of the workbench (1) is fixedly provided with a cutting mechanism; Wherein, the transport mechanism comprises a screw rod (8), and the rotation of the screw rod (8) drives the clamping mechanism to move linearly; Wherein, the clamping mechanism comprises clamping plates (9) arranged in a symmetrical distribution, and the surface of the lighting fixture housing (6) is clamped by relative movement of two clamping plates (9); Wherein, the coating mechanism comprises an elastic silicone head (10), and the protective film (5) is driven by the elastic silicone head (10) to adhere to the surface of the lighting fixture shell (6); Wherein, the cutting mechanism comprises a cutter (11), and the protective film (5) covering the surface of the lighting fixture shell (6) is cut off by the cutter (11).

2. The automatic coating device for the surface of a lighting fixture according to claim 1, characterized in that: The transport mechanism further comprises grooves (81) symmetrically distributed on the inner surface of the support frame (2), the two ends of the two screw rods (8) being respectively mounted on the inner walls of the two grooves (81) via bearings, two drive motors (82) being respectively fixedly mounted on one side surface of the support frame (2), one end of the output shaft of the drive motor (82) being fixedly sleeved with one end of the screw rod (8) via a rotating shaft, a sliding block (83) being threadedly sleeved on the surface of the screw rod (8), and the surface of the sliding block (83) being slidably engaged with the inner wall of the groove (81).

3. The automatic coating device for the surface of a lighting fixture according to claim 2, characterized in that: The clamping mechanism further comprises a slide rail group (91) symmetrically distributed and fixedly mounted on the surface of the support frame (2), the slide rail group (91) being composed of two slide rails, the moving blocks on the surfaces of the two slide rail groups (91) being fixedly connected to a concave support plate (92), the inner surface of the concave support plate (92) being provided with a telescopic frame (93), the surface of the slide block (83) being provided with a slot (94), the surface of the telescopic frame (93) being slidably engaged with the inner wall of the slot (94), and the clamping plate (9) being fixedly connected to a surface of the telescopic frame (93) on a side away from the concave support plate (92).

4. The automatic coating device for the surface of a lighting fixture according to claim 3, characterized in that: The upper and lower surfaces of the telescopic frame (93) are fixedly connected to the limit strip (95), the inner surface of the concave support plate (92) is provided with limit slots (96) symmetrically distributed in the upper and lower parts, and the surface of the limit strip (95) is slidably engaged with the inner wall of the limit slot (96).

5. The automatic coating device for the surface of a lighting fixture according to claim 4, characterized in that: A push cylinder (97) is fixedly mounted on a side surface of the two concave support plates (92) away from the support frame (2), and one end of the piston rod of the two push cylinders (97) extends into the concave support plate (92) and is fixedly connected to a side surface of the telescopic frame (93) close to the concave support plate (92).

6. The automatic coating device for the surface of a lighting fixture according to claim 5, characterized in that: A sliding groove (98) is formed through the surface of the support frame (2), and the surface of the telescopic frame (93) is slidably engaged with the inner wall of the sliding groove (98) and the clamping groove (94) respectively.

7. The automatic coating device for the surface of a lighting fixture according to claim 6, characterized in that: The laminating mechanism further comprises a telescopic cylinder (101) fixedly mounted on the upper surface of the support frame (2); the inner top surface of the support frame (2) is fixedly connected to a limiting shell (102); the surface of the elastic silicone head (10) is slidably connected to the inner wall of the limiting shell (102); and the piston rod of the telescopic cylinder (101) passes through the support frame (2) and is fixedly connected to the upper end of the elastic silicone head (10).

8. The automatic coating device for the surface of a lighting fixture according to claim 7, characterized in that: The cutting mechanism further comprises a mounting groove (111) provided on the upper surface of the workbench (1); a fixed concave ring (112) is fixedly mounted on the inner wall of the mounting groove (111); a toothed ring (113) is fixedly mounted in the concave groove of the fixed concave ring (112); a concave seat (114) is provided on the outer surface of the fixed concave ring (112); a servo motor (115) is fixedly mounted on the bottom of the concave seat (114); a gear (116) is mounted on the inner surface of the concave seat (114) via a bearing; one end of the output shaft of the servo motor (115) is fixedly sleeved with the axis of the gear (116); the gear (116) is meshed with the toothed ring (113); and the tool (11) is mounted on the upper surface of the concave seat (114).

9. The automatic coating device for the surface of a lighting fixture according to claim 8, characterized in that: The inner surface of the concave seat (114) is symmetrically and fixedly mounted with a limiting wheel (117) and a limiting block (118); the inner and outer surfaces of the fixed concave ring (112) are provided with guide grooves (119); the surfaces of the limiting wheel (117) and the limiting block (118) are respectively slidably engaged with the inner walls of the two guide grooves (119).

10. A coating method of the automatic coating device on the surface of a lighting fixture according to claim 9, characterized in that: S1. When in use, the lighting fixture shell (6) to be coated is transported via the first conveyor belt (3), and then the push cylinder (97) is started. The piston rods of the two push cylinders (97) are extended to drive the telescopic frame (93) connected thereto to move along the inner wall of the slide groove (98) and the clamping groove (94). The movement of the telescopic frame (93) drives the clamping plate (9) to move, so that the clamping plate (9) is close to the lighting fixture shell (6) and clamps the lighting fixture shell (6); S2, then start the driving motor (82), and the output shaft of the driving motor (82) rotates to drive the screw (8) connected thereto to rotate through the rotating shaft, and the rotation of the screw (8) drives the slider (83) connected thereto to move along the inner wall of the groove (81) on the screw (8), and the movement of the slider (83) drives the telescopic frame (93) to move, and the movement of the telescopic frame (93) drives the clamping plate (9) to move, and at the same time, the movement of the telescopic frame (93) drives the concave support plate (92) to move, and the movement of the concave support plate (92) drives the push cylinder (97) to move, and the movement of the concave support plate (92) causes the moving block to move along the surface of the slide rail, so that the clamped lighting fixture shell (6) is transported to the workbench (1), and then the driving motor (82) stops running, and the piston rod of the push cylinder (97) is reset; S3, then starting the telescopic cylinder (101), and extending the piston rod of the telescopic cylinder (101) to drive the elastic silicone head (10) connected thereto to move downward along the inner wall of the limiting housing (102), thereby covering the protective film (5) on the lighting fixture housing (6); S4, then driving the servo motor (115), and the rotation of the output shaft of the servo motor (115) drives the gear (116) connected thereto to rotate, and the rotation of the gear (116) drives the gear (116) to move along the surface of the gear ring (113) through meshing with the gear ring (113), thereby driving the concave seat (114) to move along the inner wall of the guide groove (119) through the limiting wheel (117) and the limiting plate, thereby causing the concave seat (114) to move along the surface of the fixed concave ring (112), and the circular motion of the concave seat (114) drives the tool (11) to rotate synchronously, so that the tool (11) can cut the protective film (5); S5. After the coating is completed, the cylinder (97) is pushed out again to drive the clamping plate (9) to clamp the coated lighting fixture shell (6), and the driving motor (82) is started to transport the coated lighting fixture shell (6) to the second conveyor belt (4). The lighting fixture shell (6) is transported along the second conveyor belt (4) to facilitate the detection device (7) to detect the coating status.

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