An automatic film laminating device and method for the surface of a lighting fixture

Abstract

The present invention belongs to the technical field of lighting fixture processing, in particular to an automatic film laminating device and method for the surface of lighting fixtures, including 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. A protective film is arranged on the inner surface of the support frame through rollers. The upper surfaces of the first conveyor belt and the second conveyor belt transport hemispherical lighting fixture shells. A detection device is arranged on the surface of the second conveyor belt. A transport mechanism is arranged on the inner surface of the support frame, and a clamping mechanism is arranged on the surface of the transport mechanism. A film laminating mechanism is arranged on the upper surface of the support frame. A cutting mechanism is fixedly installed on the upper surface of the workbench. The automatic film laminating device and method for the surface of lighting fixtures, by setting the cutting mechanism, enables the cutter to cut along the surface of the hemispherical lighting fixture shell, making the cutting edge of the protective film flat and without wrinkles, and cooperating with the film laminating mechanism, is suitable for laminating the surface of the hemispherical lighting fixture.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting fixture processing, and particularly relates to an automatic film laminating device and method for the surface of lighting fixtures. Background Art

[0002] Lighting fixtures refer to a series of products and devices used for lighting. During the processing of lighting fixtures, it is necessary to apply a protective film on the surface of the lighting fixtures. Film laminating can protect the lighting fixtures from dust, oil stains, corrosion, etc., and at the same time enhance the aesthetics of the products.

[0003] However, when the existing film laminating devices for lighting fixtures are in use, most of them are processed by sleeving the film, that is, wrapping the lighting fixture with a protective film, and then moving the cutter up and down to cut the protective film. However, this step cannot make the protective film effectively adhere to the surface of the lighting fixture, and also causes waste of materials, increases production costs. At the same time, wrinkles or uneven edges will occur in the subsequent film laminating, and it is not suitable for hemispherical lighting fixtures, thus affecting production efficiency. Summary of the Invention

[0004] Based on the technical problems that the existing film laminating devices are not suitable for hemispherical lighting fixtures, and most of them are sleeving the film on the lighting fixtures, thus the protective film cannot adhere to the surface of the lighting fixture, resulting in wrinkles and uneven edges during the film laminating process, the present invention proposes an automatic film laminating device and method for the surface of lighting fixtures.

[0005] An automatic film laminating device for the surface of lighting fixtures proposed by the present invention includes 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. A protective film is arranged on the inner surface of the support frame through rollers. The upper surfaces of the first conveyor belt and the second conveyor belt transport hemispherical lighting fixture shells. A detection device is arranged on the surface of the second conveyor belt. A transport mechanism is arranged on the inner surface of the support frame. A clamping mechanism is arranged on the surface of the transport mechanism. A film laminating mechanism is arranged on the upper surface of the support frame. A cutting mechanism is fixedly installed on the upper surface of the workbench.

[0006] Among them, the transport mechanism includes a screw rod, and the rotation of the screw rod drives the clamping mechanism to perform linear movement.

[0007] Among them, the clamping mechanism includes clamping plates arranged symmetrically, and the surface of the lighting fixture shell is clamped by the relative movement of the two clamping plates.

[0008] Among them, the film laminating mechanism includes an elastic silicone head, and the elastic silicone head drives the protective film to adhere to the surface of the lighting fixture shell.

[0009] Among them, the cutting mechanism includes a tool, and the protective film covering the surface of the lighting fixture shell is cut off by the tool.

[0010] Preferably, the transportation mechanism further includes grooves symmetrically distributed on the inner surface of the support frame. Both ends of the two screws are respectively installed on the inner walls of the two grooves through bearings. Two driving motors are respectively fixedly installed on one side surface of the support frame. 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 clamped 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 further includes slide rail groups symmetrically distributed and fixedly installed on the surface of the support frame. The slide rail group is composed of two slide rails. The moving blocks on the surfaces of the two slide rail groups are fixedly connected with concave supporting plates. A telescopic frame is arranged on the inner surface of the concave supporting plate. A clamping groove is formed on the surface of the slider, and the surface of the telescopic frame is slidably clamped with the inner wall of the clamping groove. The clamping plate is fixedly connected with the side surface of the telescopic frame far away from the concave supporting plate.

[0013] Through the above technical solution, the movement of the slider drives the telescopic frame connected thereto to move through the clamping groove. 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 supporting plate to move, and the movement of the concave supporting plate causes the moving block to move along the surface of the slide rail.

[0014] Preferably, limiting strips are fixedly connected to both the upper and lower surfaces of the telescopic frame. Limiting grooves are symmetrically distributed up and down on the inner surface of the concave supporting plate. The surface of the limiting strip is slidably clamped with the inner wall of the limiting groove.

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

[0016] Preferably, pushing cylinders are fixedly installed on the side surfaces of the two concave supporting plates far away from the support frame. One end of the piston rod of each of the two pushing cylinders extends into the concave supporting plate and is fixedly connected with the side surface of the telescopic frame close to the concave supporting plate.

[0017] Through the above technical solution, the telescopic movement of the piston rod of the pushing cylinder drives the telescopic frame connected thereto to move. The movement of the telescopic frame drives the clamping plate to move, facilitating the clamping plate to approach or move away from the lighting fixture shell.

[0018] Preferably, a chute is formed through the surface of the support frame, and the surface of the telescopic frame is slidably clamped to the inner walls of the chute and the clamping groove respectively.

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

[0020] Preferably, the film covering mechanism further includes a telescopic cylinder fixedly installed on the upper surface of the support frame, a limiting shell is fixedly connected to the inner top surface of the support frame, the surface of the elastic silica gel 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 silica gel head.

[0021] Through the above technical solution, the expansion and contraction of the piston rod of the telescopic cylinder drives the connected elastic silica gel head to move up and down along the inner wall of the limiting shell.

[0022] Preferably, the cutting mechanism further includes an installation groove formed on the upper surface of the workbench, a fixed concave ring is fixedly installed on the inner wall of the installation groove, a toothed ring is fixedly installed in the concave groove of the fixed concave ring, a concave seat is arranged on the outer surface of the fixed concave ring, a servo motor is fixedly installed at 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 of the gear, the gear meshes with the toothed ring, and the cutter is installed on the upper surface of the concave seat.

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

[0024] Preferably, limiting wheels and limiting blocks are symmetrically and fixedly installed on the inner surface of the concave seat. Guide grooves are formed on both the inner and outer surfaces of the fixed concave ring. The surfaces of the limiting wheels and the limiting blocks are slidably clamped to the inner walls of the two guide grooves respectively.

[0025] Through the above technical solution, the sliding clamping of the limiting wheels and the limiting blocks to the guide grooves limits the movement of the concave seat.

[0026] A film covering method for an automatic film covering device on the surface of a lighting fixture proposed by the present invention is as follows:

[0027] S1. During use, the lighting fixture shell to be film-covered is transported through the first conveyor belt, and then the pushing cylinder is started. The extension of the piston rods of the two pushing cylinders drives the connected telescopic frame to move along the inner walls of the chute and the clamping groove. The movement of the telescopic frame drives the clamping plate to move, facilitating the clamping plate to approach the lighting fixture shell and clamping the lighting fixture shell.

[0028] S2. Then start the driving motor. The rotation of the output shaft of the driving motor drives the screw rod connected thereto to rotate through the rotating shaft. The rotation of the screw rod drives the slider connected thereto to move along the inner wall of the groove on the screw rod. 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-shaped support plate to move. The movement of the concave-shaped support plate drives the pushing cylinder to move. And the movement of the concave-shaped support plate causes the moving block to 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 pushing cylinder resets.

[0029] S3. Then start the telescopic cylinder. The extension of the piston rod of the telescopic cylinder drives the elastic silica gel head connected thereto to move downward along the inner wall of the limiting housing, so as to cover the protective film on the lighting fixture shell.

[0030] S4. Then drive the servo motor. The rotation of the output shaft of the servo motor drives the gear connected thereto to rotate. The rotation of the gear drives the gear to move along the surface of the toothed ring through the meshing with the toothed ring, so as to drive the concave-shaped seat to move along the inner wall of the guide groove through the limiting wheel and the limiting block, and further make the concave-shaped seat move along the surface of the fixed concave-shaped ring. The circular motion of the concave-shaped seat drives the cutter to rotate synchronously, which is convenient for the cutter to cut the protective film.

[0031] S5. After the film covering is completed, the pushing cylinder extends again to drive the clamping plate to clamp the lighting fixture shell after film covering. And the driving motor is started to transport the lighting fixture shell after film covering to the second conveyor belt, and make the lighting fixture shell move along with the transmission of the second conveyor belt, which is convenient for the detection device to detect the film covering state.

[0032] The beneficial effects of the present invention are as follows:

[0033] 1. By setting the film covering mechanism, the softness and elasticity of the elastic silica gel head are used to facilitate the fitting of the protective film to the surface of the hemispherical lighting fixture, thereby avoiding excessive waste of the protective film, saving resources and reducing production costs.

[0034] 2. By setting the cutting mechanism, the cutter cuts along the surface of the hemispherical lighting fixture shell, so that the cutting edge of the protective film is flat and free of wrinkles, and it cooperates with the film covering mechanism, which is suitable for film covering the surface of the hemispherical lighting fixture. Description of the Drawings

[0035] Figure 1 It is a schematic diagram of an automatic film covering device for the surface of a lighting fixture proposed by the present invention;

[0036] Figure 2 It is a three-dimensional view of the limiting housing structure of an automatic film covering device for the surface of a lighting fixture proposed by the present invention;

[0037] Figure 3 Stereogram of the elastic silica gel head structure of an automatic film laminating device for the surface of a lighting fixture proposed by the present invention;

[0038] Figure 4 Stereogram of the clamping plate structure of an automatic film laminating device for the surface of a lighting fixture proposed by the present invention;

[0039] Figure 5 Stereogram of the screw structure of an automatic film laminating device for the surface of a lighting fixture proposed by the present invention;

[0040] Figure 6 Stereogram of the telescopic frame structure of an automatic film laminating device for the surface of a lighting fixture proposed by the present invention;

[0041] Figure 7 Stereogram of the slider structure of an automatic film laminating device for the surface of a lighting fixture proposed by the present invention;

[0042] Figure 8 Stereogram of the workbench structure of an automatic film laminating device for the surface of a lighting fixture proposed by the present invention;

[0043] Figure 9 Stereogram of the fixed concave ring structure of an automatic film laminating device for the surface of a lighting fixture proposed by the present invention;

[0044] Figure 10 Stereogram of the concave seat structure of an automatic film laminating device for the surface of a lighting fixture proposed by the present invention;

[0045] Figure 11 Stereogram of the gear structure of an automatic film laminating device for the surface of a lighting fixture proposed by the present invention.

[0046] In the figure: 1. Workbench; 2. Support frame; 3. First conveyor belt; 4. Second conveyor belt; 5. Protective film; 6. Lighting fixture shell; 7. Detection device; 8. Screw; 81. Groove; 82. Driving motor; 83. Slider; 9. Clamping plate; 91. Slide rail group; 92. Concave support plate; 93. Telescopic frame; 94. Card slot; 95. Limit strip; 96. Limit groove; 97. Pushing cylinder; 98. Chute; 10. Elastic silica gel head; 101. Telescopic cylinder; 102. Limit housing; 11. Tool; 111. Installation groove; 112. Fixed concave ring; 113. Tooth ring; 114. Concave seat; 115. Servo motor; 116. Gear; 117. Limit wheel; 118. Limit block; 119. Guide groove. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0048] Referring to Figures 1 - 11 , an automatic film laminating 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. A protective film 5 is arranged on the inner surface of the support frame 2 through rollers. The upper surface of the first conveyor belt 3 and the second conveyor belt 4 transports a hemispherical lighting fixture housing 6. A detection device 7 is arranged on the surface of the second conveyor belt 4. A transport mechanism is arranged on the inner surface of the support frame 2, a clamping mechanism is arranged on the surface of the transport mechanism, a film laminating mechanism is arranged on the upper surface of the support frame 2, and a cutting mechanism is fixedly installed on the upper surface of the workbench 1.

[0049] Among them, in order to transport the lighting fixture housing 6 on the first conveyor belt 3 to the workbench 1, the arranged transport mechanism includes a screw rod 8, and the rotation of the screw rod 8 drives the clamping mechanism to perform linear movement.

[0050] In order to drive the screw rod 8 to rotate, the transport mechanism further includes grooves 81 symmetrically distributed on the inner surface of the support frame 2. Both ends of the two screw rods 8 are respectively installed on the inner walls of the two grooves 81 through bearings. Two drive motors 82 are respectively fixedly installed on one side surface of the support frame 2. One end of the output shaft of the drive motor 82 is fixedly sleeved with one end of the screw rod 8 through a rotating shaft. A slider 83 is threadedly sleeved on the surface of the screw rod 8, and the surface of the slider 83 is slidably clamped with the inner wall of the groove 81. The rotation of the output shaft of the drive motor 82 drives the screw rod 8 connected thereto to rotate through the rotating shaft, and the rotation of the screw rod 8 drives the slider 83 connected thereto to move along the inner wall of the groove 81 on the screw rod 8.

[0051] Among them, in order to cooperate with the transport mechanism to facilitate transporting the lighting fixture housing 6 on the first conveyor belt 3 to the workbench 1, the arranged clamping mechanism includes clamping plates 9 symmetrically distributed, and the surface of the lighting fixture housing 6 is clamped by the relative movement of the two clamping plates 9.

[0052] In order to drive the lighting fixture housing 6 to move, the clamping mechanism further includes slide rail groups 91 symmetrically distributed and fixedly installed on the surface of the support frame 2. The slide rail groups 91 are composed of two slide rails. Moving blocks on the surfaces of the two slide rail groups 91 are fixedly connected with concave support plates 92. A telescopic frame 93 is arranged on the inner surface of the concave support plate 92. A clamping groove 94 is formed on the surface of the slider 83, and the surface of the telescopic frame 93 is slidably clamped with the inner wall of the clamping groove 94. The clamping plate 9 is fixedly connected with the side surface of the telescopic frame 93 far away from the concave support plate 92. The movement of the slider 83 drives the telescopic frame 93 connected thereto to move through the clamping groove 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, and the movement of the concave support plate 92 enables the moving block to move along the surface of the slide rail.

[0053] To facilitate the movement of the telescopic frame 93 to drive the concave support plate 92 to move, limit strips 95 are fixedly connected to both the upper and lower surfaces of the telescopic frame 93. Limit grooves 96 are symmetrically distributed on the inner surface of the concave support plate 92 in the up and down directions, and the surface of the limit strip 95 is slidably clamped with the inner wall of the limit groove 96.

[0054] To facilitate the clamping of the lighting fixture housing 6, push cylinders 97 are fixedly installed on the surface of both sides of the two concave support plates 92 away from the support frame 2. One end of the piston rod of each of the two push cylinders 97 extends into the concave support plate 92 and is fixedly connected to the surface of the telescopic frame 93 close to the concave support plate 92. By the telescopic movement of the piston rod of the push cylinder 97, the connected telescopic frame 93 is driven to move, and the movement of the telescopic frame 93 drives the clamping plate 9 to move, facilitating the clamping plate 9 to approach or move away from the lighting fixture housing 6.

[0055] To limit the movement of the telescopic frame 93, a sliding groove 98 is penetrated and opened on the surface of the support frame 2, and the surface of the telescopic frame 93 is slidably clamped with the inner walls of the sliding groove 98 and the clamping groove 94 respectively.

[0056] Among them, in order to make the protective film 5 fit the surface of the hemispherical lighting fixture housing 6, the film covering mechanism provided includes an elastic silica gel head 10, and the elastic silica gel head 10 drives the protective film 5 to adhere to the surface of the lighting fixture housing 6.

[0057] To drive the elastic silica gel head 10 to drive the protective film 5 to fit the surface of the lighting fixture housing 6, the film covering mechanism further includes a telescopic cylinder 101 fixedly installed on the upper surface of the support frame 2. A limit housing 102 is fixedly connected to the inner top surface of the support frame 2. The surface of the elastic silica gel head 10 is slidably connected to the inner wall of the limit housing 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 silica gel head 10. By the telescopic movement of the piston rod of the telescopic cylinder 101, the connected elastic silica gel head 10 is driven to move up and down along the inner wall of the limit housing 102.

[0058] By providing the film covering mechanism, the softness and elasticity of the elastic silica gel head 10 are used to facilitate the fitting of the protective film 5 to the hemispherical lighting fixture surface, thereby avoiding excessive waste of the protective film 5, saving resources, and reducing production costs.

[0059] Among them, in order to cut off the attached protective film 5 along the edge of the lighting fixture housing 6, the cutting mechanism provided includes a cutter 11, and the cutter 11 cuts off the protective film 5 covering the surface of the lighting fixture housing 6.

[0060] In order to drive the tool 11 to perform a circular motion, the cutting mechanism further includes a mounting groove 111 formed on the upper surface of the workbench 1. The inner wall of the mounting groove 111 is fixedly installed with a fixed concave ring 112. A toothed ring 113 is fixedly installed in the concave groove of the fixed concave ring 112. The outer surface of the fixed concave ring 112 is provided with a concave seat 114. A servo motor 115 is fixedly installed at 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. The gear 116 meshes with the toothed ring 113. The tool 11 is installed on the upper surface of the concave seat 114. By rotating the output shaft of the servo motor 115, the connected gear 116 is driven to rotate. The rotation of the gear 116 drives the gear 116 to move along the surface of the toothed ring 113 through meshing with the toothed 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.

[0061] In order to limit the movement of the concave seat 114, a limiting wheel 117 and a limiting block 118 are symmetrically and fixedly installed on the inner surface of the concave seat 114. Guide grooves 119 are provided on both the inner and outer surfaces of the fixed concave ring 112. The surfaces of the limiting wheel 117 and the limiting block 118 are respectively slidably clamped with the inner walls of the two guide grooves 119.

[0062] By setting the cutting mechanism, the tool 11 cuts along the surface of the hemispherical lighting fixture shell 6, so that the cutting edge of the protective film 5 is flat and free of wrinkles, and it cooperates with the film covering mechanism, which is suitable for film covering on the surface of the hemispherical lighting fixture.

[0063] Refer to Figures 1 - 11 , a film covering method of an automatic film covering device for the surface of a lighting fixture. The film covering method is as follows:

[0064] S1. During use, the lighting fixture shell 6 to be film covered is transported through the first conveyor belt 3, and then the pushing cylinder 97 is started. The extension of the piston rods of the two pushing cylinders 97 drives the telescopic frame 93 connected thereto to move along the inner walls of the sliding groove 98 and the clamping groove 94. The movement of the telescopic frame 93 drives the clamping plate 9 to move, facilitating the clamping plate 9 to approach the lighting fixture shell 6 and clamping the lighting fixture shell 6.

[0065] S2. Then start the driving motor 82. The rotation of the output shaft of the driving motor 82 drives the screw rod 8 connected thereto to rotate through the rotating shaft. The rotation of the screw rod 8 drives the slider 83 connected thereto to move along the inner wall of the groove 81 on the screw rod 8. The movement of the slider 83 drives the telescopic frame 93 to move. 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-shaped support plate 92 to move. The movement of the concave-shaped support plate 92 drives the pushing cylinder 97 to move. And the movement of the concave-shaped 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. Then the driving motor 82 stops running, and the piston rod of the pushing cylinder 97 resets;

[0066] S3. Then start the telescopic cylinder 101. The extension of the piston rod of the telescopic cylinder 101 drives the elastic silica gel head 10 connected thereto to move downward along the inner wall of the limiting housing 102, so as to cover the protective film 5 on the lighting fixture shell 6;

[0067] S4. Then drive the servo motor 115. 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 toothed ring 113 through the engagement with the toothed ring 113, thereby driving the concave-shaped seat 114 to move along the inner wall of the guide groove 119 through the limiting wheels 117 and the limiting blocks 118, and further causing the concave-shaped seat 114 to move along the surface of the fixed concave-shaped ring 112. The circular motion of the concave-shaped seat 114 drives the cutter 11 to rotate synchronously, which is convenient for the cutter 11 to cut the protective film 5;

[0068] S5. After the film covering is completed, the pushing cylinder 97 extends again to drive the clamping plate 9 to clamp the lighting fixture shell 6 after film covering. And the driving motor 82 is started to transport the lighting fixture shell 6 after film covering to the second conveyor belt 4, and the lighting fixture shell 6 is conveyed along with the second conveyor belt 4, which is convenient for the detection device 7 to detect the film covering state.

[0069] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within 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; The transport mechanism comprises a screw rod (8), and the rotation of the screw rod (8) drives the clamping mechanism to move linearly, and a sliding block (83) is threadedly sleeved on the surface of the screw rod (8); 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); 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 a side of the telescopic frame (93) away from the concave support plate (92); A push cylinder (97) is fixedly mounted 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 push 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); 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; The upper and lower surfaces of the telescopic frame (93) are fixedly connected to the limit strips (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 strips (95) is slidably engaged with the inner wall of the limit slots (96); 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); 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).

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, and the surface of the slider (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 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).

4. The automatic coating device for the surface of a lighting fixture according to claim 3, 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).

5. A coating method for the automatic coating device on the surface of a lighting fixture according to claim 4, 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 block (118), 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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