Automatic prime coat mechanism for automobile sunroof

By using a primer coating device controlled by plasma cleaning and a multi-axis robotic arm, the problem of time-consuming pre-coating cleaning of automotive sunroofs has been solved, achieving an efficient and automated primer coating process and improving the adhesion strength and durability of sunroof components.

CN224101100UActive Publication Date: 2026-04-10FUZHOU COHON AUTOMATION EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUZHOU COHON AUTOMATION EQUIP
Filing Date
2025-04-09
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing pre-coating cleaning methods for automotive sunroofs are time-consuming and difficult to control in terms of quality, affecting the adhesion of the primer and the bonding strength and durability of sunroof components.

Method used

The system employs a plasma cleaning device for automated cleaning, combined with a primer coating device controlled by a multi-axis robotic arm. It is equipped with multiple primer brush heads and a replacement station, and uses photoelectric sensors to detect whether the primer liquid has fully penetrated the surface, thus achieving automated and efficient primer coating.

Benefits of technology

It improves cleaning efficiency, avoids chemical residues and drying time, ensures effective application of the primer, and enhances adhesion strength and durability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an automatic prime coating mechanism for an automobile sunroof, which comprises a rotating disc for placing the sunroof, a plasma generating and cleaning device and a prime coating device are arranged on two sides of the rotating disc, and the prime coating device and the plasma generating and cleaning device are respectively controlled and driven by a prime coating mechanical arm and a cleaning mechanical arm to move. The prime coating device comprises a prime coating fixing plate fixed to the movable end of the prime coating mechanical arm, and a prime coating brush head is arranged on the prime coating fixing plate. According to the embodiment of the utility model, the plasma generation cleaning device is used for automatically cleaning the surface of the skylight, so that the cleaning efficiency can be effectively improved, and the drying waiting time and cleaning machine residues required by chemical agent cleaning are avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to an automobile sunroof automatic processing equipment, concretely relates to an automatic primer mechanism of automobile sunroof. BACKGROUND

[0002] The automobile sunroof primer process is an important link in the automobile manufacturing process, and it relates to the adhesion pretreatment of sunroof glass, sunroof frame and other components. As a kind of pretreatment agent, primer can significantly improve the activity of the adherend surface, enhance the adhesion of subsequent gluing, thereby ensuring the firm adhesion of sunroof components. In the sunroof primer process, cleaning is a crucial step. It directly affects the adhesion effect of primer and substrate, and then affects the adhesion strength and durability of sunroof components. The existing cleaning method mainly uses cleaning liquid or automatic cleaning cloth combined with air drying for cleaning, but it takes a long time, and the primer cannot be effectively attached due to the drying of cleaning liquid, which affects the quality. SUMMARY

[0003] The utility model discloses to solve the problem that the prior art sunroof primer cleaning method takes a long time and is difficult to control quality.

[0004] The technical scheme of the utility model is as follows: an automobile sunroof automatic primer mechanism, including a rotating disc for placing a sunroof, the rotating disc has a plasma generating cleaning device and a primer device on both sides, the primer device and the plasma generating cleaning device are respectively controlled and driven to move by a primer mechanical arm and a cleaning mechanical arm, the primer device includes a primer fixed plate fixed to the movable end of the primer mechanical arm, the primer fixed plate has a primer brush head.

[0005] Preferably, the primer fixed plate is fixed with a primer head insertion pipe, the upper end of the primer brush head has a sleeve, the primer head insertion pipe is inserted into the sleeve, the lower end of the primer head insertion pipe is conical, the upper end of the primer head insertion pipe is columnarly inserted into the sleeve, the upper part of the primer head insertion pipe has a larger diameter than the inner diameter of the sleeve, the primer head insertion pipe is hollow inside, and a primer liquid input pipe is connected to the top.

[0006] Preferably, the rotating disc is arranged on a rack, a rotary motor is fixed on the rack, the output end of the rotary motor is fixedly connected with the bottom of the rotating disc, a support rod is fixed on the rotating disc, a suction disc seat is fixed on the support rod, and a first suction disc for placing glass is fixed on the suction disc seat.

[0007] Preferably, the primer brush head has an adsorption layer for adsorbing primer, and the adsorption layer is felt or cotton pad.

[0008] Preferably, the primer fixing plate is fixed with a primer sensor for sensing the primer brush head, the primer sensor is fixed to a sensor mounting seat, the primer fixing plate is provided with a sensor guide rail, and the sensor mounting seat is slidably connected with the sensor guide rail and is locked by bolts.

[0009] Preferably, the primer fixing plate is provided with two or more primer brush heads, and the bottom surfaces of the different primer brush heads are arranged in a staggered manner.

[0010] Preferably, the primer device further comprises a primer brush head adhesive replacement table located beside the primer mechanical arm, the replacement table is provided with a groove for placing the primer brush head, one end of the groove is provided with a push rod extending into the groove, the other end of the groove away from the push rod is closed, the push rod is driven by a push rod mechanism to move along the groove to push the primer brush head to move, and the push rod mechanism is a push rod electric cylinder located below the replacement table, and a moving end of the push rod electric cylinder is fixedly connected with the push rod.

[0011] Preferably, one side of the replacement table is provided with a brush head unloading hopper, the edge of the brush head unloading hopper is fixed with an unloading plate, and the end of the unloading plate is provided with a recess capable of buckling into a sleeve.

[0012] Preferably, the replacement table is further provided with an inclined surface, the lower part of the inclined surface is provided with a photoelectric sensor, and the photoelectric sensor is located at the lower edge of the inclined surface and is used for sensing liquid drops.

[0013] Preferably, the rear side of the replacement table is provided with a magnetic stirrer for placing primer liquid.

[0014] Compared with the prior art, the primer device has the following beneficial effects:

[0015] (1) In the embodiment of the utility model, the automatic cleaning of the sunroof surface by the plasma generating cleaning device can effectively improve the cleaning efficiency and avoid the need for waiting for drying time and cleaning machine residue when chemical agents are used for cleaning.

[0016] (2) In the embodiment of the utility model, the operation of installing the primer brush head by the primer mechanical arm is efficient.

[0017] (3) In the embodiment of the utility model, the plurality of primer brush heads designed on the same primer device can meet the primer demand of different areas and are convenient to use.

[0018] (4) In the embodiment of the utility model, the replacement table is designed to directly replace the primer brush head, which saves the replacement time.

[0019] (5) In the embodiment of the utility model, the primer brush head is used to press the inclined surface to drop the primer liquid, so as to sense whether the primer liquid in the primer brush head is completely soaked, and the effective primer liquid brushing is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure schematic view of primer coating mechanical arm and cleaning mechanical arm of the utility model embodiment;

[0021] Figure 2 It is the structure schematic view of primer coating device of the utility model;

[0022] Figure 3 It is the structure schematic view of replacement platform of the utility model;

[0023] Figure 4 It is the layout schematic view of unloading plate and unloading hopper of the utility model;

[0024] Figure 5 It is the structure schematic view of channel end of the utility model;

[0025] Figure 6 It is the layout structure schematic view of use state of the utility model;

[0026] In the drawing: 10-stand, 20-plasma generation cleaning device, 30-primer coating device, 301-primer coating mechanical arm, 201-cleaning mechanical arm, 310-primer coating fixed plate, 311-primer coating head insertion pipe, 312-primer coating liquid input pipe, 320-primer coating brush head, 321-sleeve, 330-primer coating sensor, 331-sensor mounting seat, 332-sensor guide rail, 120-rotary disc, 121-rotary motor, 122-supporting rod, 123-suction cup seat, 124-first suction cup, 40-replacement platform, 410-channel, 420-push rod, 430-push rod electric cylinder, 440-unloading hopper, 441-unloading plate, 442-recess, 443-inclined surface, 444-optoelectronic sensor. DETAILED DESCRIPTION

[0027] The utility model will be explained in detail below in combination with the drawings and specific embodiments.

[0028] Referring to Figures 1-6 , the automobile sunroof automatic primer coating mechanism, the automobile sunroof automatic primer coating mechanism, including the rotary disc 120 for placing sunroof, the both sides of rotary disc 120 have plasma generation cleaning device 20 and primer coating device 30, the primer coating device 30 with plasma generation cleaning device 20 is respectively by primer coating mechanical arm 301 and cleaning mechanical arm 201 control drive movement, the primer coating device 30 includes the primer coating fixed plate 310 fixed in the mobile end of primer coating mechanical arm, the primer coating fixed plate 310 has primer coating brush head 320 on.

[0029] In operation, the sunroof is placed on the first suction disc 124 of the rotating disc 120, and before the primer coating process, the atmospheric plasma cleaning device 20 is used first, which is controlled by the cleaning mechanical arm 201 to move along the area to be primed, and the atmospheric plasma cleaning device 20 adopts the structure of an atmospheric plasma cleaning spray gun, and plasma is sprayed from the spray head of the spray gun to separate the contaminants from the surface of the sunroof.

[0030] The primer coating brush head 320 of the primer coating device 30 is controlled by the primer coating mechanical arm 301 to move along the area to be primed to perform primer coating, and the bottom of the primer coating brush head 320 is dipped in primer coating liquid. The primer coating brush head has an adsorption layer 322 for adsorbing primer coating liquid, which is a felt or a cotton pad.

[0031] In an embodiment of the present application, the primer coating head insertion pipe 311 is fixed on the primer coating fixed plate 310, and the primer coating brush head 320 has a sleeve 321 at the upper end, and the upper and lower ends of the sleeve 321 are open, and the lower end opening of the sleeve 321 corresponds to the arrangement of the adsorption layer 322.

[0032] The primer coating head insertion pipe 311 is inserted into the sleeve 321, the lower end of the primer coating head insertion pipe is tapered, the upper end of the primer coating head insertion pipe is inserted into the sleeve 321 in a columnar shape, the upper part of the primer coating head insertion pipe 311 has a diameter larger than the inner diameter of the sleeve, so that after insertion, the sleeve 321 and the primer coating head insertion pipe 311 can use friction force to make the primer coating brush head 320 clamped in the inserted sleeve 321. The primer coating head insertion pipe 311 is hollow inside, and the top is connected with a primer coating liquid input pipe 312, and in use, the primer coating liquid is pumped through the primer coating liquid input pipe 312 to realize that the primer coating liquid enters the primer coating brush head 320 through the primer coating liquid input pipe 312, the inner cavity of the primer coating head insertion pipe 311, the inner cavity of the sleeve 321, and then infiltrates the adsorption layer 322 at the bottom of the primer coating brush head.

[0033] In an embodiment of the present application, the gantry 10 is provided with a rotating motor 121, the rotating motor 121 drives the rotating disc 120 to rotate, the rotating disc 120 is fixed with a support rod 122, the support rod is fixed with a suction disc seat 123, and the suction disc seat 123 is fixed with a first suction disc 124 for placing glass. When the sunroof is placed on the first suction disc 124 of the rotating disc 120, the first suction disc 124 is connected with a negative pressure pump through a pipeline, and the first suction disc 124 adsorbs the sunroof through negative pressure to ensure the fixation of the sunroof. Since the atmospheric plasma cleaning device 20 and the primer coating device 30 are separately arranged on the two sides of the rotating disc 120, the rotating disc 120 is rotated to realize that the atmospheric plasma cleaning device 20 and the primer coating device 30 can work alternately in half areas, or after completing work in half areas, the rotating disc 120 rotates the sunroof to complete work in the other half area.

[0034] In an embodiment of the utility model, the bottom coating fixed plate is fixed with a bottom coating sensor 330 for inducting the bottom coating brush head 320, the bottom coating sensor 330 is fixed on a sensor mounting seat 331, the bottom coating fixed plate 320 is provided with a sensor guide rail 332, the sensor mounting seat 331 can be slidably matched with the sensor guide rail and is locked by bolt. The bottom coating sensor 330 is used for monitoring whether the bottom coating brush head 320 is completely installed in place.

[0035] In an embodiment of the utility model, the bottom coating fixed plate 310 has two or more than two bottom coating brush heads 320, and different bottom coating brush heads are arranged in staggered mode. The design structure is mainly used for realizing the bottom coating brush head 320 with different bottom areas as shown in the figure, which is used for adapting to different bottom coating areas, that is, a larger area uses a bottom coating brush head 320 with a larger bottom area, and a smaller or narrow area needs to select a bottom coating brush head 320 with a smaller bottom area. When different bottom coating brush heads are used, the different bottom coating brush heads 320 are switched by the rotation operation of the multi-axis bottom coating mechanical arm 301.

[0036] Generally, as shown in the figure, two bottom coating brush heads 320 are designed in the embodiment, and the two are arranged in staggered mode by 90 DEG. The bottom coating mechanical arm 301 and the cleaning mechanical arm 201 described in the text are multi-axis (at least 5 axes) mechanical arms on the market, which can satisfy the basic lifting, translation and end head rotation operation capabilities and can satisfy the automatic movement according to the designed coordinate area.

[0037] In order to ensure the cleaning of the bottom coating brush head 320 and the sufficient soaking of the bottom coating liquid of the bottom coating brush head 320, the bottom coating brush head 320 needs to be replaced after completing a certain number of bottom coating work. In an embodiment of the utility model, the bottom coating device further includes a bottom coating brush head material sticking replacement table 40 beside the bottom coating mechanical arm, the replacement table 40 is provided with a groove 410 for placing the bottom coating brush head, the gap of the groove 410 should be smaller than the bottom area of the bottom coating brush head, one end of the groove 410 is provided with a push rod 420 extending into the groove, and the other end of the groove 410 away from the push rod 420 is closed, the push rod 420 is driven by a push rod mechanism to move along the groove to push the bottom coating brush head to move, and the push rod mechanism is a push rod electric cylinder located below the replacement table, and the moving end of the push rod electric cylinder is fixedly connected with the push rod 420.

[0038] In the case of multiple kinds of bottom coating brush heads 320 (different bottom areas), the groove 410 for placing the bottom coating brush head to be replaced can also be provided with multiple groups, two groups are designed in the embodiment and are used for conveying bottom coating brush heads 320 with different sizes of end heads, and the bottom coating brush head 320 and the sleeve 321 are designed as a whole.

[0039] The replacement station 40 has a brush head unloading hopper 440 on one side, and an unloading plate 441 is fixed to the edge of the brush head unloading hopper. The end of the unloading plate is provided with a recess 442 that can be fastened into the sleeve 321.

[0040] The changing table 40 also has an inclined surface 443, and a photoelectric sensor 444 is located at the lower edge of the inclined surface 443 for sensing droplets.

[0041] During operation, when the primer brush head 320 needs to be replaced after completing a certain number of primer coating operations, the primer coating robot arm 301 inserts the primer brush head 320 into the recess 442 through the opening. After the sleeve 321 is inserted into the recess 442, it is lifted upward by the primer coating robot arm 301. The primer head, which is snapped into the lower end of the primer head insertion tube 311, is blocked by the unloading plate 441 and falls into the unloading hopper 440 below. Then, the primer coating robot arm 301 controls the primer head insertion tube 311 to move to the top of the channel 410 of the replacement table 40, and moves the insertion tube 311 downward so that the insertion tube 311 is inserted into the sleeve 321 of the primer brush head 320 arranged in the channel 410. Then, it is replaced by an unused primer brush head in the channel by snapping.

[0042] like Figure 4 As shown, after the primer brush head 320 is replaced, the primer robotic arm 301 controls the pressing of the primer brush head 320 onto the inclined surface 443. The primer liquid is poured in through the primer liquid inlet pipe 312, and the photoelectric sensor 441 at the lower position of the inclined surface 443 senses whether there is liquid dripping, so that the control system confirms whether the primer liquid has fully soaked into the bottom of the primer brush head 320, avoiding insufficient primer liquid during the application process.

[0043] Then, push rod 420 pushes each primer brush head 320 in the channel 410 forward, ensuring that the positioning of the primer coating robot arm 301 for picking up new primer brush heads 320 is more convenient. In this way, the primer coating robot arm 301 only needs to be set to the outermost position (the end pushed by push rod 420) to replace the primer brush head 320, and photoelectric sensors can also be used to determine whether the primer brush head 320 to be replaced needs to be replenished.

[0044] The rear side of the changing table 40 has a magnetic stirrer 450 for placing the primer liquid. The magnetic stirrer 450 is used to ensure that the primer liquid is continuously and evenly mixed. The primer liquid is pumped to the primer brush head 320 through the primer liquid inlet pipe 312.

[0045] The above description is only an embodiment of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this utility model.

Claims

1. An automatic primer mechanism for an automotive sunroof, characterized by, The application relates to a rotating disc for placing a skylight, and the rotating disc is provided with a plasma generating cleaning device and a primer coating device on two sides, the primer coating device and the plasma generating cleaning device are respectively controlled and driven to move by a primer coating mechanical arm and a cleaning mechanical arm, the primer coating device comprises a primer coating fixed plate fixed to a movable end of the primer coating mechanical arm, and the primer coating fixed plate is provided with a primer coating brush head.

2. The automotive sunroof automatic primer mechanism according to claim 1, wherein The primer coating fixed plate is fixed with a primer coating head insertion pipe, the primer coating brush head is provided with a sleeve at an upper end, the primer coating head insertion pipe is inserted into the sleeve, the lower end of the primer coating head insertion pipe is conical, the upper end of the primer coating head insertion pipe is columnar and inserted into the sleeve, the upper part of the primer coating head insertion pipe has a diameter larger than the inner diameter of the sleeve, the primer coating head insertion pipe is hollow, and a primer coating liquid input pipe is connected to the top of the primer coating head insertion pipe.

3. The automotive sunroof automatic primer mechanism of claim 1, wherein The rotating disc is arranged on a rack, the rack is fixed with a rotating motor, the output end of the rotating motor is fixedly connected with the bottom of the rotating disc, the rotating disc is fixed with a supporting rod, the supporting rod is fixed with a suction disc seat, and the suction disc seat is fixed with a first suction disc for placing glass.

4. The automotive sunroof automatic primer mechanism of claim 1, wherein The primer coating brush head is provided with an adsorption layer for adsorbing primer coating liquid, and the adsorption layer is felt or a cotton pad.

5. The automotive sunroof automatic primer mechanism of claim 2, wherein The primer coating fixed plate is fixed with a primer coating sensor for sensing the primer coating brush head, the primer coating sensor is fixed to a sensor mounting seat, the primer coating fixed plate is provided with a sensor guide rail, the sensor mounting seat can be slidably matched with the sensor guide rail and is locked by bolts.

6. The automotive sunroof automatic primer mechanism of claim 1, wherein The primer coating fixed plate is provided with two or more primer coating brush heads, and the bottom surfaces of the different primer coating brush heads are arranged in a staggered mode.

7. The automotive sunroof automatic primer mechanism of claim 1, wherein The primer coating device further comprises a primer coating brush head adhesive replacement table arranged on the side of the primer coating mechanical arm, the replacement table is provided with a groove for placing the primer coating brush head, one end of the groove is provided with a push rod extending into the groove, the end of the groove away from the push rod is closed, the push rod is driven to move along the groove by a push rod mechanism to push the primer coating brush head to move, and the push rod mechanism is a push rod electric cylinder arranged below the replacement table, and the moving end of the push rod electric cylinder is fixedly connected with the push rod.

8. The automotive sunroof automatic primer mechanism of claim 7, wherein, One side of the replacement table is provided with a brush head unloading hopper, the edge of the brush head unloading hopper is fixed with an unloading plate, and the end of the unloading plate is provided with a recess capable of buckling into the sleeve.

9. The automotive sunroof automatic primer mechanism of claim 7, wherein, The replacement table is further provided with an inclined surface, the lower part of the inclined surface is provided with a photoelectric sensor, and the photoelectric sensor is arranged at the lower edge of the inclined surface and used for sensing liquid drops.

10. The automotive sunroof automatic primer mechanism of claim 7, wherein, The rear side of the replacement table is provided with a magnetic stirrer for placing primer coating liquid.