An integrated device for spraying and UV irradiation of a through-type automotive lamp cover

Abstract

This invention provides an integrated spraying and UV irradiation device for a through-type automotive lampshade, comprising a flexible plate with multiple rows of mounting holes penetrating both sides of the upper part of the flexible plate, and a flexible UV irradiation strip matching the shape of the through-type lampshade on the lower front part of the flexible plate; a sealing strip suitable for filling and sealing the gap between the edge of the through-type lampshade and the surface of the flexible plate is provided at the mounting holes on the upper front part of the flexible plate; each mounting hole in the inner area of ​​the sealing strip is provided with a vent pipe or a sprayer for spraying UV coating, the sprayer being suitable for connection to a UV coating delivery pump, and the vent pipe being suitable for connection to an air extraction device; the flexible plate is used to match through-type lampshades with different curvatures, and the sealing strip is used to seal the gap between the lampshade and the surface of the flexible plate; the sprayer is used to spray UV coating onto the inner wall of the lampshade, and the air extraction device and vent pipe are used to extract excess coating from the inner space of the lampshade; the flexible UV irradiation strip is used to match various shapes of through-type automotive lampshades.

Description

Technical Field

[0001] This invention belongs to the field of automotive lamp cover production equipment, and particularly relates to an integrated device for spraying and UV irradiation of automotive through-type lamp covers. Background Technology

[0002] When applying UV-curing coating to the inner wall of existing automotive through-type headlight covers, a process of spraying first and then irradiating is generally adopted. The production process uses an assembly line-style workstation layout, that is, the spraying station is in front and the UV curing station is behind. However, this distributed workstation setting requires a large space and area, and it cannot be installed and operated in production sites with narrow or limited available space. Summary of the Invention

[0003] (a) Technical problems to be solved To address the aforementioned technical problems, the purpose of this invention is to provide an integrated device for spraying and UV irradiation of automotive through-type lamp covers, which integrates spraying and UV irradiation, reduces area occupation, and improves space utilization.

[0004] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: This invention provides an integrated device for spraying and UV irradiation of a through-type automotive lamp cover, comprising a flexible plate. The upper part of the flexible plate has multiple rows of mounting holes penetrating both sides of the flexible plate, and the lower front part of the flexible plate has a flexible UV irradiation strip that matches the shape of the through-type lamp cover. A sealing strip suitable for filling and sealing the gap between the edge of the through-type lamp cover and the surface of the flexible plate is provided at the mounting holes on the upper front part of the flexible plate. Each mounting hole in the inner area of ​​the sealing strip is provided with a vent pipe or a sprayer for spraying UV coating. The sprayer is suitable for connection to a UV coating delivery pump, and the vent pipe is suitable for connection to an air extraction device.

[0005] The flexible plate has an inner hinge part 1 at each end of its reverse side. The inner hinge part 1 is hinged to the free end of the piston rod 1. The piston rod 1 is slidably fitted inside the telescopic cylinder 1. The closed end of the telescopic cylinder 1 is hinged to the column 1. The flexible plate has an inner hinge part 2 at the center of its reverse side. The inner hinge part 2 is hinged to the free end of the piston rod 2. The piston rod 2 is slidably fitted inside the telescopic cylinder 2. The closed end of the telescopic cylinder 2 is hinged to the column 2.

[0006] The ejector includes a housing sealed within a mounting hole and an ejector portion extending out of the mounting hole. A core column is provided inside the housing. One end of the core column has a threaded hole for connecting to a delivery pump. The other end of the core column is connected to a valve core via a spring. The valve core slides within the housing cavity, which is connected to the threaded hole via a channel within the housing. An outlet is provided at the end of the inner cavity adjacent to the ejector portion. The ejector portion has multiple ejector holes with openings facing different circumferential directions. Each ejector hole is connected to the outlet. An electromagnet for driving the valve core to move is provided inside the housing.

[0007] At least one vent hole is provided between the injection section of the injector and the end of the housing adjacent to the threaded hole.

[0008] The air duct is located in the mounting hole near the edge of the through-type lampshade.

[0009] The hinge joint between the closed end of the telescopic cylinder 2 and the column 2 is provided with a locking device suitable for preventing the telescopic cylinder 2 from rotating relative to the column 2; the hinge joint between the inner hinge part 2 and the free end of the piston rod 2 is provided with a locking device suitable for preventing the piston rod 2 from rotating relative to the flexible plate.

[0010] (III) Beneficial Effects This invention provides an integrated device for spraying and UV irradiation of a through-type automotive lamp cover. It has the following beneficial effects: 1. The integrated spraying and UV irradiation device for automotive through-type lamp covers of the present invention utilizes a flexible, bendable plate to match through-type lamp covers with different curvatures. A sealing strip is used to seal the gap between the through-type lamp cover and the surface of the flexible plate to ensure the sealing of the inner space of the lamp cover and prevent the sprayed paint from leaking outwards. A sprayer is used to spray UV paint onto the inner wall of the lamp cover, and an extraction device and air duct are used to promptly remove excess paint from the inner space of the lamp cover, preventing excessive paint deposition on the inner wall and causing paint dripping. A bendable UV irradiation strip is used, bent into a predetermined shape to match various shapes of automotive through-type lamp covers, ensuring that all parts of the inner wall of the lamp cover have the same irradiation distance with the UV irradiation strip, achieving synchronous and uniform curing of the paint on the inner wall of the lamp cover.

[0011] 2. By utilizing the extension and retraction of piston rod 1 in telescopic cylinder 1 at both ends of the flexible plate's reverse side and the extension and retraction of piston rod 2 in telescopic cylinder 2 in the center of the flexible plate, the curvature of the flexible plate can be adjusted to improve the accuracy of adjustment, thereby adapting to automotive through-type lamp covers with different curvatures; the orientation of the front side of the flexible plate can also be adjusted by utilizing the hinges between each telescopic cylinder 1 and column 1, and the hinges between each telescopic cylinder 2 and column 2.

[0012] 3. The injector uses an electromagnet and spring to control the movement of the valve core, thereby opening or closing the liquid outlet. After the delivery pump is started, each injector can be controlled independently, thus adjusting the spray sequence of each injector according to different types of through-type lamp covers.

[0013] 4. The ventilation holes connect the inner space of the through-type lampshade with the outside, so that when the air extraction device extracts air from the inner space, it balances the air pressure between the space and the outside, making the extraction process smoother.

[0014] 5. The air guide pipe is located in the mounting holes near the edge of the through-type lamp cover. This makes full use of the fact that the lamp cover is not high enough to install the sprayer in these mounting holes, so that the sprayer can be installed in each mounting hole as much as possible, thereby reducing the spray dead corners on the inner wall of the lamp cover.

[0015] 6. Locking devices are provided at the hinge joint between the closed end of the telescopic cylinder 2 and the column 2, and at the hinge joint between the inner hinge part 2 and the free end of the piston rod 2. This facilitates the adjustment of the orientation and curvature of the flexible plate, as well as the locking of the position of the flexible plate, preventing it from shifting or shaking during contact and separation from the through-type lampshade, which would affect the positioning accuracy between the lampshade and the flexible plate. Attached Figure Description

[0016] Figure 1 This is a front view of the automotive through-type lampshade of the present invention; Figure 2 This is a reverse view of the automotive through-type lampshade of the present invention; Figure 3 This is a front view of the integrated spraying and UV irradiation device of the present invention; Figure 4 This is a reverse view of the integrated spraying and UV irradiation device of the present invention; Figure 5 This is a schematic diagram of the working state of the integrated spraying and UV irradiation device of the present invention; Figure 6 This is a schematic diagram of the injector structure of the present invention; Figure 7 This is a schematic diagram of the loading and unloading of the integrated spraying and UV irradiation device of the present invention.

[0017] In the diagram: 1. Flexible board; 2. UV irradiation lamp strip; 20. Bending section; 21. Arc-shaped section; 3. Mounting hole; 4. Sprayer; 401. Housing; 402. Spraying section; 403. Threaded hole; 404. Internal thread; 405. Liquid inlet chamber; 406. Core column; 407. Liquid outlet chamber; 408. Connecting hole; 409. Spring; 410. Electromagnet; 411. Valve core; 412. Spraying hole; 413. Vent hole; 414. 5. Liquid outlet; 6. Seal; 7. Air duct; 8. Inner hinge part 1; 9. Hinge rod 1; 10. Piston rod 1; 11. Telescopic cylinder 1; 12. Outer hinge part 1; 13. Column 1; 14. Inner hinge part 2; 15. Hinge rod 2; 16. Piston rod 2; 17. Telescopic cylinder 2; 18. Outer hinge part 2; 19. Column 2; 19. Through-type lampshade; 191. Long strip part; 192. Lamp assembly part; 30. Robotic arm; 31. Suction cup. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figure 1-2 As shown, the car's through-type light cover 19 includes a central elongated section 191 and two end light assembly sections 192. The elongated section 191 is used to house a through-type LED light strip, and the light assembly sections 192 are used to house various functional light assemblies such as high beams, low beams, and turn signals. Because the front of the car is curved, the through-type light cover 19 is also curved from one end to the other.

[0020] like Figure 3-4 As shown, the integrated spraying and UV irradiation device for a through-type automotive lamp cover of the present invention includes a flexible, bendable plate 1. Multiple rows of mounting holes 3, penetrating both sides of the flexible plate 1, are arranged side-by-side on the upper part of the plate 1. Each mounting hole 3 is suitable for mounting a sprayer 4. The lower front part of the flexible plate 1 is used to arrange a UV irradiation light strip 2. The UV irradiation light strip 2 includes a central arc-shaped portion 21 and bent portions 20 at both ends. The UV irradiation light strip 2 can be connected to the flexible plate 1 by adhesive bonding, facilitating disassembly and replacement.

[0021] As a preferred option, the UV irradiation lamp strip 2 can be a UV ultraviolet lamp strip disclosed in document number "CN217004142U".

[0022] The flexible plate 1 has an inner hinge part 7 at both ends on the reverse side. Each inner hinge part 7 is connected to one end of an adjacent hinge rod 8. The other end of each hinge rod 8 is connected to the free end of a piston rod 9. The piston rod 9 is slidably fitted inside the telescopic cylinder 10. The closed end of the cylinder body of the telescopic cylinder 10 is hinged to the top of the column 12 through an outer hinge part 11.

[0023] The flexible plate 1 has an inner hinge part 2 13 in the middle of its reverse side. The inner hinge part 2 13 is connected to one end of an adjacent hinge rod 2 14, and the other end of the hinge rod 2 14 is connected to the free end of a piston rod 2 15. The piston rod 2 15 is slidably fitted within a telescopic cylinder 2 16. The closed end of the telescopic cylinder 2 16 is hinged to the top of a column 2 18 via an outer hinge part 2 17. Preferably, a locking device is provided at the hinge point between the outer hinge part 2 17 and the top of the column 2 18. When this locking device is activated, it can prevent the telescopic cylinder 2 16 from rotating relative to the column 2 18. Preferably, a locking device is also provided at the hinge point between the inner hinge part 2 13 and the reverse side of the flexible plate 1. When this locking device is activated, it can prevent the piston rod 2 15 from rotating relative to the flexible plate 1. The locking device can be a pin or a socket.

[0024] The telescopic cylinder 10 and telescopic cylinder 2 16 can be pneumatic cylinders or hydraulic cylinders.

[0025] like Figure 5 As shown, the flexible plate 1 is bent into a predetermined arc and matches the arc of the through-type lampshade 19, thereby facilitating the through-type lampshade 19 to fit against the area with mounting holes 3 on the upper front side of the flexible plate 1. Insulators 4 are installed in most of the mounting holes 3 within the area covered by the through-type lampshade 19, and the injectors 4 are sealed to the mounting holes 3; for example... Figure 4 As shown, an air duct 6 is installed in the remaining mounting holes 3 within the coverage area. One end of the air duct 6 extends into the mounting hole 3 and seals against it, while the other end is located on the outer side of the reverse side of the flexible plate 1. A sealing strip 5 is provided at the upper part of the front side of the flexible plate 1 where it meets the edge of the through-type lampshade 19. The sealing strip 5 surrounds the edge of the through-type lampshade 19, thereby sealing the gap between the edge of the through-type lampshade 19 and the surface of the flexible plate 1 when the through-type lampshade 19 is pressed against the upper part of the front side of the flexible plate 1. The sealing strip 5 can be connected to the flexible plate 1 by adhesive, facilitating disassembly and replacement to suit through-type lampshades of various shapes.

[0026] Since the edge height of the through-type lampshade 19 is small and insufficient to accommodate the spray section 402 of the injector 4, as a preferred option, the air guide 6 is adapted to be installed in the mounting hole 3 adjacent to the edge of the through-type lampshade 19.

[0027] The UV irradiation light strip 2 at the bottom of the flexible plate 1 is made of flexible UV light strip. The length of the arc part 21 and the bending shape and size of the bending part 20 of the UV light strip can be selected according to the shape and size of the through-type lamp cover 19. So when the through-type lamp cover 19 covers the UV irradiation light strip 2, the UV light can be evenly irradiated on the inner wall of the through-type lamp cover 19.

[0028] like Figure 6 As shown, the injector 4 includes a housing 401, with a hemispherical spray section 402 at the front end of the housing 401. When the injector 4 is installed in the mounting hole 3, the outer wall of the housing 401 and the inner wall of the mounting hole 3 are sealed together, and the spray section 402 extends out of the mounting hole 3 and faces outwards through a lampshade 19. A threaded hole 403 is provided in the middle of the rear end of the housing 401, and the edge of the threaded hole 403 is provided with an internal thread 404. A core post 406 is provided in front of the threaded hole 403. The middle part of the core post 406 is connected to the housing 401, and the connection part is provided with a plurality of connecting holes 408 along the axial direction of the core post 406. A liquid inlet chamber 405 is provided circumferentially outwards at the rear end of the core post 406 of the connecting hole 408. The liquid inlet chamber 405 is adapted to connect the rear end of the connecting hole 408 and the threaded hole 403. A liquid outlet chamber 407 is provided circumferentially outwards at the front end of the core post 406 of the connecting hole 408. The spray section 402 is provided with multiple spray holes 412. The front end of the liquid outlet chamber 407 is connected to the inner end of the spray hole 412, and the rear end of the liquid outlet chamber 407 is connected to the front end of each connecting hole 408. The spray holes 412 are distributed circumferentially along the spray section 402, so that the outer end (i.e., the open end) of each spray hole 412 faces different directions of the spray section 402. The liquid outlet chamber 407 located in front of the core column 406 is provided with a valve core 411. The valve core 411 slides and is clearance-fitted in the liquid outlet chamber 407. A spring 409 is provided between the valve core 411 and the core column 406. A liquid outlet 414 is provided at the connection between the front end of the liquid outlet chamber 407 and the inner end of the spray hole 412. The liquid outlet 414 is connected to each spray hole 412 in the spray section 402. Under the elastic force of the spring 409, the valve core 411 is pressed against the liquid outlet 414 to close the liquid outlet 414. A pair of electromagnets 410 are installed inside the housing 401 on the outer periphery of the valve core 411. When the electromagnets 410 are energized, the magnetic force they generate attracts the valve core 411, causing the valve core 411 to overcome the elastic force of the spring 409 and move towards the core column 406, thereby opening the liquid outlet 414. Multiple vent holes 413 are provided in the edge portions of the housing 401 and the spray section 402. The rear opening of each vent hole 413 is located at the tail of the housing 401, and the front opening of the vent hole 413 is located at the circumferential edge of the spray section 402. The vent holes 413 connect the outer side of the spray section 402 with the outer side of the tail of the housing 401, thereby balancing the air pressure inside the through-type lamp cover 19 on the outer side of the spray section 402.

[0029] Each injector 4 has a threaded hole 403 connected to a supply pipe (not shown in the figure) for supplying UV coating via threads. Each supply pipe is connected to a UV coating delivery pump (not shown in the figure). Preferably, the delivery pump can be a coating delivery pump disclosed in document number "CN222415257U".

[0030] Each air guide pipe 6 is located at its outer end on the reverse side of the flexible plate 1 and is connected to the air extraction device via a pipeline. After the air extraction device is activated, it removes excess UV coating sprayed from the spray hole 412 inside the through-type lampshade 19, preventing UV coating from depositing on the inner wall of the through-type lampshade 19 and the front side of the flexible plate 1. As a preferred option, the air extraction device can be a high-efficiency gas-liquid separation device disclosed in document number "CN208287659U" to achieve the functions of air extraction and gas-liquid separation.

[0031] like Figure 1-7 As shown, the working principle of the integrated spraying and UV irradiation device for automotive through-type lamp covers of the present invention is as follows: (1) The telescopic cylinders 10 at both ends of the reverse side of the flexible plate 1 operate, driving their respective piston rods 9 to move. At the same time, the telescopic cylinder 16 at the center of the reverse side of the flexible plate 1 operates, driving its internal piston rod 15 to move. With the assistance of the inner hinge 7, outer hinge 11, inner hinge 13, and outer hinge 17, the flexible plate 1 bends in the left and right directions with a set arc to match the through-type lampshade 19 with the corresponding bending arc. At the same time, the outer hinge 11 and outer hinge 17 can be used to make the telescopic cylinders 10 and 16 rotate synchronously to adjust the orientation of the front side of the flexible plate 1, thereby matching the movement trajectory of the robotic arm 30, which facilitates the loading and unloading of through-type lampshades of various shapes and sizes.

[0032] (2) A pair of robotic arms 30 use suction cups 31 at their ends to pick up a pair of lamp groups 192 of the through-type lamp cover 19, remove the through-type lamp cover 19 to be processed from the assembly line, and place the through-type lamp cover 19 in the area surrounded by the seal 5, so that the lamp cover is in contact with the front of the flexible plate 1 and the edge of the lamp cover is pressed against the seal 5, thereby achieving a seal between the edge of the lamp cover and the surface of the flexible plate 1. The delivery pump operates, delivering UV coating at a set pressure to the inlet chamber 405 of each sprayer 4. At this time, the electromagnet 410 in the selected sprayer 4 is energized. Under the action of magnetic force, the valve core 411 in the sprayer 4 overcomes the elastic force of the adjacent spring 409 and moves away from the outlet 414. The UV coating in the inlet chamber 405 is sprayed outward in a mist after passing through the connecting holes 408, the outlet chamber 407, the outlet 414, and the spray hole 412. The sprayed UV coating will adhere to the inner wall of the through-type lampshade 19 on the outside of the spray section 402. At the same time, the air extraction device is activated, and the remaining UV coating droplets inside the through-type lampshade 19 are drawn away through the air guide pipe 6 for separation and sedimentation for reuse. At this time, in order to balance the air pressure inside the through-type lampshade 19 and maintain the above-mentioned suction process, purified air from the outside enters the vent 413 from the tail of each ejector 4, through the rear end of the vent 413, and enters the inside of the through-type lampshade 19 from the front end of the vent 413.

[0033] (3) After the UV coating spraying process is completed, the robotic arm 30 uses the suction cup 31 at its end to remove the through lamp cover 19 from the seal 5 and cover it to the surface of the UV irradiation strip 2, so that the through lamp cover 19 and the UV irradiation strip 2 are symmetrical, so that each part of the inner wall of the through lamp cover 19 has the same irradiation distance with the UV irradiation strip 2, so as to ensure that the UV coating sprayed on the inner wall of the through lamp cover 19 can be cured synchronously and uniformly.

[0034] As a preferred embodiment, the integrated spraying and UV irradiation device for the automotive through-type lamp cover of the present invention also includes a controller. The controller is connected to and controls the operation of each sprayer 4, UV irradiation lamp strip 2, telescopic cylinder one 10, telescopic cylinder two 16, robotic arm 30, delivery pump, and air extraction device. In particular, it can control the spraying sequence of each sprayer 4 according to the different shapes of lamp covers, so as to accurately control the spraying volume, achieve no dead corners in the spraying of the inner wall of the lamp cover, and reduce the consumption of UV coating.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated device for spraying and UV irradiation of a through-type automotive lamp cover, characterized in that... include: The flexible plate (1) has multiple rows of mounting holes (3) on the upper part of the flexible plate (1) that penetrate the front and back sides of the flexible plate (1). The lower front part of the flexible plate (1) has a flexible UV irradiation strip (2) that matches the shape of the through-type lampshade (19). A sealing strip (5) suitable for filling and sealing the gap between the edge of the through-type lampshade (19) and the surface of the flexible plate (1) is provided at the mounting hole (3) on the upper front part of the flexible plate (1). Each mounting hole (3) in the inner area of ​​the sealing strip (5) is provided with a duct (6) or a sprayer (4) for spraying UV coating. The sprayer (4) is suitable for connecting to the UV coating delivery pump, and the duct (6) is suitable for connecting to the air extraction device.

2. The integrated spraying and UV irradiation device for automotive through-type lamp covers according to claim 1, characterized in that: The flexible plate (1) has an inner hinge part 1 (7) at both ends of the reverse side. The inner hinge part 1 (7) is hinged to the free end of the piston rod 1 (9). The piston rod 1 (9) is slidably fitted in the telescopic cylinder 1 (10). The closed end of the telescopic cylinder 1 (10) is hinged to the column 1 (12). The flexible plate (1) has an inner hinge part 2 (13) at the center of the reverse side. The inner hinge part 2 (13) is hinged to the free end of the piston rod 2 (15). The piston rod 2 (15) is slidably fitted in the telescopic cylinder 2 (16). The closed end of the telescopic cylinder 2 (16) is hinged to the column 2 (18).

3. The integrated spraying and UV irradiation device for automotive through-type lamp covers according to any one of claims 1-2, characterized in that: The injector (4) includes a housing (401) sealed in the mounting hole (3) and an injection part (402) extending out of the mounting hole (3). The housing (401) is provided with a core column (406). One end of the core column (406) is provided with a threaded hole (403) for connecting to the delivery pump. The other end of the core column (406) is connected to the valve core (411) by a spring (409). The valve core (411) slides and fits in the inner cavity of the housing. The inner cavity is connected to the threaded hole (403) through a channel in the housing. The end of the inner cavity adjacent to the injection part (402) is provided with a liquid outlet (414). The injection part (402) is provided with a plurality of injection holes (412) with openings facing different directions in the circumference. Each injection hole (412) is connected to the liquid outlet (414). The housing (401) is provided with an electromagnet (410) for driving the valve core (411) to move.

4. The integrated spraying and UV irradiation device for automotive through-type lamp covers according to claim 3, characterized in that: At least one vent (413) is provided between the injection part (402) of the injector (4) and the end of the housing (401) adjacent to the threaded hole (403).

5. The integrated spraying and UV irradiation device for automotive through-type lamp covers according to claim 1, characterized in that: The air duct (6) is located in the mounting hole (3) near the edge of the through lampshade (19).

6. The integrated spraying and UV irradiation device for automotive through-type lamp covers according to claim 2, characterized in that: The hinge between the closed end of the telescopic cylinder 2 (16) and the column 2 (18) is provided with a locking device suitable for preventing the telescopic cylinder 2 (16) from rotating relative to the column 2 (18); the hinge between the inner hinge part 2 (13) and the free end of the piston rod 2 (15) is provided with a locking device suitable for preventing the piston rod 2 (15) from rotating relative to the flexible plate (1).

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