Automobile black film installation auxiliary device

Abstract

The utility model relates to the technical field of automobile black film pasting, in particular to an automobile black film installation auxiliary device which comprises a support, a controller, an electromagnetic valve set, a push rod, a telescopic air cylinder, a vacuum generator and a plurality of first suction cups. The push rod is arranged at the bottom of the support and located between two adjacent first suction cups, and the power output end of the telescopic air cylinder is connected with the push rod so as to drive the push rod to jack back paper of the black film. The automatic film pasting machine can be matched with a robot to automatically complete the working procedures of film taking, backing paper removing, positioning and film pasting, and the working efficiency is high while the film pasting quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automotive black film application technology, and more specifically, to an auxiliary device for automotive black film installation. Background Technology

[0002] Currently, car window frames are decorated by spraying paint, but in practice, this method is complicated, time-consuming, and labor-intensive. Therefore, to address these issues, a black film pasting method has emerged in the market. The black film is mainly applied in large pieces to the outer frame of the car door.

[0003] The application of black film is often done manually. This is because the installation process is complex, involving actions such as removing the film, detaching the backing paper, positioning, and walking. On average, each worker spends 25 seconds of unproductive work time per vehicle, accounting for 32.4% of the total work time. This indicates significant room for improvement, and there is an urgent need to develop automated systems to replace manual labor.

[0004] Chinese patent CN202410319086.8 discloses a tooling for applying black film adhesive strips to automotive door frames. The tooling includes a mounting base with a paper separation cover and a door clamping plate hinged perpendicularly to its two sides. One end of the mounting base is connected to a pressure roller, an adhesive strip guide roller, a guide roller, and a paper separation rod, all perpendicular to the mounting base. One end of the pressure roller, guide roller, and guide roller is rotatably connected to the mounting base, while one end of the paper separation rod is fixedly connected to the mounting base. The pressure roller is located between the guide roller and the guide roller, and the paper separation rod is located between the guide roller and the pressure roller. The other ends of the pressure roller and guide roller are rotatably connected to a limiting plate perpendicular to the paper separation cover. A positioning roller is rotatably connected to one edge of the door clamping plate facing the limiting plate, and clamping rollers are provided on the connecting plate. This solution requires manual operation to position and apply the black film adhesive strip, making it unsuitable for automated robotic operations. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing tooling that requires manual operation, and to propose an auxiliary device for installing automotive black film. This device can work with a robot to automatically complete the processes of film picking, backing paper removal, positioning, and film application, ensuring high work efficiency while ensuring film application quality.

[0006] To achieve the above objectives, this technical solution provides an auxiliary device for installing automotive black film, comprising a bracket, a controller, a solenoid valve assembly, a push rod, a telescopic cylinder, a vacuum generator, and several first suction cups. The controller is mounted on the bracket, and the several first suction cups are sequentially arranged at the bottom of the bracket. The solenoid valve assembly is mounted on the bracket and electrically connected to the controller. The vacuum generator is mounted on the bracket, and its output end is connected to the first suction cups through the solenoid valve assembly. The control end of the vacuum generator is electrically connected to the controller. The push rod is located at the bottom of the bracket and between two adjacent first suction cups. The telescopic cylinder is mounted on the bracket and connected to the solenoid valve assembly. The power output end of the telescopic cylinder is connected to the push rod to drive the push rod to lift the backing paper of the black film.

[0007] In this technical solution, the support is connected to the robot, and the opening and closing of the solenoid valve group is controlled by the controller. The solenoid valve group is connected to the air source. When the solenoid valve group is activated, the vacuum generator controls the first suction cup to pick up the black film. The black film is strip-shaped, and the adhesive side of the black film has a backing paper. When applying the black film, this backing paper needs to be peeled off. One side of the black film is evenly attracted by several first suction cups. The telescopic cylinder drives the push rod to push out, so that the push rod lifts the middle of the black film located on two adjacent first suction cups. At this time, due to the difference in elasticity between the backing paper and the black film, the backing paper is lifted. The push rod is retracted under the action of the telescopic cylinder. Then, the robot peels off the backing paper from the lifted part, thereby realizing the removal of the backing paper. Finally, the film is applied under the action of the robot. During the film application process, the first suction cup attracts the black film for positioning to prevent the black film from moving and deviating from the film application position. After the film application is completed, the controller controls the first suction cup to detach the black film. This device can work with the robot to realize the automated operation of black film picking, backing paper removal, positioning, and film application.

[0008] As a preferred embodiment, in order to position the black film and keep it in a straight and unfolded state, the bottom of the bracket extends downward to form a connecting part, and a crossbar is fixed on the connecting part. Several first suction cups are vertically installed at the bottom of the crossbar, and the several first suction cups respectively adsorb various parts of the black film, thereby making the black film unfold horizontally in a straight line.

[0009] As a preferred embodiment, each of the first suction cups is a vacuum suction cup, and each of the first suction cups is connected in series through a set pipe. The vacuum generator uses a positive pressure air source to generate negative pressure, so that the first suction cups obtain negative pressure and thus adsorb the black film. The series connection method can make the suction force of each first suction cup consistent.

[0010] As a preferred embodiment, to enable the multiple first suction cups to adapt to the shape of the car window frame and improve the adhesion of the black film, a plurality of support rods are sequentially connected in the vertical direction of the crossbar. Each first suction cup is slidably connected to the bottom of each support rod, and a return spring is sleeved on each support rod. One end of each return spring abuts against the crossbar, and the other end of each return spring abuts against each first suction cup. Each first suction cup can slide and adjust its position according to the shape of the car window frame so that the black film forms a certain arc. The return spring can push the first suction cup to adsorb the black film and press it onto the car window frame, thereby improving the film application quality.

[0011] As a preferred embodiment, in order to push the push rod downwards perpendicular to the crossbar to lift the middle of the black film, the telescopic cylinder is vertically fixed at the bottom of the crossbar. The air source input control end of the telescopic cylinder is connected to the solenoid valve group, and the power output end of the telescopic cylinder is connected to the push rod. The power output end of the telescopic cylinder drives the push rod to lift part of the black film, thereby making the back paper curl up to facilitate the robot to peel off the back paper.

[0012] As a preferred embodiment, in order to avoid damage to the black film when lifting it with sharp edges, the bottom of the push rod is provided with an abutment for lifting the black film, and the abutment is an arc-shaped sheet structure.

[0013] As a preferred embodiment, to increase the suction force of the device for easier film removal, the crossbar is also equipped with several second suction cups connected to the solenoid valve assembly. The second suction cups are Bernoulli suction cups, which are used to pick up the black film. These second suction cups are non-contact suction cups. The black films are stacked layer by layer. When removing the film, the second suction cup first picks up the black film, and then the black film comes into contact with the first suction cup and is adsorbed by the first suction cup, thereby improving the error tolerance of film removal.

[0014] As a preferred solution, to prevent the black film from falling off due to insufficient suction from the first suction cup when the push rod lifts it, the bracket is equipped with a rotary cylinder connected to the solenoid valve group. The power output end of the rotary cylinder is connected to a flipping frame, and the flipping frame is equipped with an air clamp. The air clamp is connected to the solenoid valve group. The rotary cylinder drives the flipping frame to rotate so that the air clamp is aligned with the push rod. During the backing paper removal process, the flipping frame flips downward under the drive of the rotary cylinder. After flipping, the air clamp, under the control of the solenoid valve group, can just clamp the black film for simple fixation. Then, the push rod lifts part of the black film, causing the backing paper to curl up. After the robot completes the backing paper removal, the push rod retracts, the air clamp releases the black film, and the rotary cylinder drives the flipping frame to flip upward to avoid interfering with the film application process.

[0015] As a preferred embodiment, in order to improve the reliability of the black film fixation, two air clamps are provided, with the two air clamps respectively located on both sides of the push rod, and the two air clamps respectively clamp the black film on both sides of the push rod.

[0016] As a preferred embodiment, in order to adjust the position of the air clamp and avoid interference between the air clamp and the first suction cup, the flipping frame is provided with two sliding holes, and the two air clamps are slidably connected to the two sliding holes respectively.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model controls the opening and closing of the solenoid valve group through the controller, so that the vacuum generator drives several first suction cups to pick up the black film, thus completing the film removal. Then, the push rod is used to lift one end of the black film so that the backing paper is lifted to facilitate the removal of the backing paper. After the backing paper is removed, each first suction cup continues to adsorb the black film and position it at the bonding position with the car window frame. Finally, the black film is pasted in the designated position. This device can cooperate with the robot to complete the automated processes of film removal, backing paper removal, positioning, and film pasting, with high work efficiency.

[0019] 2. Each first suction cup is slidably connected to the support rod and works with the return spring to adaptively adjust its position, which can adapt to the partial curved structure of the car window frame. Then, the tension of the return spring is used to press the black film onto the car window frame, increasing the adhesion of the black film and thus ensuring the quality of the film application.

[0020] 3. By setting an arc-shaped sheet-like abutment part at the bottom of the push rod, damage to the black film can be avoided when one end of the black film is lifted.

[0021] 4. By setting up air clamps to clamp the two sides of the black film in conjunction with the push rod to lift the black film, it is possible to prevent the black film from falling off due to insufficient suction force of the first suction cup when it is lifted, thereby increasing the reliability of the black film fixation. At the same time, by setting the air clamps on the flipping frame, during the backing paper removal stage, the rotary cylinder drives the flipping frame to flip downward to clamp the black film, and in other stages, it flips upward to avoid interference with the operation.

[0022] 5. By setting a second suction cup on the crossbar, the suction force of this device on the black film can be increased, making it easier to use the first suction cup to pick up the black film during the film removal stage. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0025] Figure 3 This is a schematic diagram of the state after the tilting frame has been tilted.

[0026] In the diagram: bracket 1; crossbar 11; support rod 12; return spring 13; connecting part 14; controller 2; solenoid valve group 21; relay 22; power supply 23; voltage converter 24; push rod 3; abutment part 31; telescopic cylinder 4; first suction cup 5; vacuum generator 51; second suction cup 6; rotary cylinder 7; flipping frame 8; sliding hole 81; air clamp 82; pipe 9. Detailed Implementation

[0027] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0028] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0030] Example 1:

[0031] like Figures 1 to 3 As shown, an auxiliary device for installing automotive black film in this embodiment includes a bracket 1, a controller 2, a solenoid valve assembly 21, a push rod 3, a telescopic cylinder 4, a vacuum generator 51, and several first suction cups 5. The controller 2 is mounted on the bracket 1, and several first suction cups 5 are sequentially arranged at the bottom of the bracket 1. The solenoid valve assembly 21 is mounted on the bracket 1 and electrically connected to the controller 2. The vacuum generator 51 is mounted on the bracket 1, and its output end is connected to the first suction cups 5 through the solenoid valve assembly 21. The control end of the vacuum generator 51 is electrically connected to the controller 2. The push rod 3 is located at the bottom of the bracket 1 and between two adjacent first suction cups 5. The telescopic cylinder 4 is mounted on the bracket 1 and connected to the solenoid valve assembly 21. The power output end of the telescopic cylinder 4 is connected to the push rod 3 to drive the push rod 3 to lift the backing paper of the black film.

[0032] In this embodiment, the bracket 1 is mounted on the robot, and the controller 2 is electrically connected to the robot. The controller 2 can issue control commands to control the opening and closing of the solenoid valve group 21 in accordance with the robot's rhythmic movements. The solenoid valve group 21 is connected to multiple pipes 9, which are respectively connected to several first suction cups 5 and telescopic cylinders 4. The solenoid valve group 21 is composed of multiple solenoid valves arranged in parallel and is connected to the air source.

[0033] In this embodiment, a power supply 23 electrically connected to the controller 2 is installed on the bracket 1. A relay 22 is connected between the controller 2 and the solenoid valve group 21 to switch the forward and reverse operation of the electronic control element. A voltage converter 24 for protection circuit is also connected between the relay 22 and the solenoid valve group 21.

[0034] Specifically, the bottom of the bracket 1 extends downward to form a connecting part 14, and a crossbar 11 is fixed on the connecting part 14. Several first suction cups 5 are vertically installed at the bottom of the crossbar 11.

[0035] In this embodiment, as Figure 1 As shown, seven first suction cups 5 are vertically mounted on the crossbar 11, with each first suction cup 5 at the same horizontal height, which ensures that the black film can be evenly adsorbed and that the black film is spread out horizontally in a straight line.

[0036] Specifically, each of the first suction cups 5 is a vacuum suction cup, and each of the first suction cups 5 is connected in series through the provided pipes 9.

[0037] In this embodiment, when the vacuum generator 51 compresses air through its power nozzle, the nozzle cross-section decreases, resulting in a faster flow rate, increased dynamic pressure, and decreased static pressure. When the compressed air passes through the power nozzle, the faster-flowing air expands, generating a vacuum effect, which causes the first suction cup 5 to generate negative pressure, thereby adsorbing the black film.

[0038] Specifically, the telescopic cylinder 4 is vertically fixed to the bottom of the crossbar 11, the air source input control end of the telescopic cylinder 4 is connected to the solenoid valve group 21, and the power output end of the telescopic cylinder 4 is connected to the push rod 3.

[0039] In this embodiment, when the telescopic cylinder 4 is in the retracted state, the push rod 3 does not protrude beyond the two adjacent first suction cups 5, thus avoiding interference with the film application process.

[0040] Specifically, the bottom of the push rod 3 is provided with an abutment part 31 for lifting the black film, and the abutment part 31 is an arc-shaped sheet structure.

[0041] In this embodiment, the length of the contact portion 31 is adapted to the width of the black film.

[0042] Specifically, the crossbar 11 is also provided with several second suction cups 6 connected to the solenoid valve assembly 21. The second suction cups 6 are Bernoulli suction cups and are used to pick up the black film.

[0043] In this embodiment, the working principle of the Bernoulli suction cup is based on Bernoulli's principle. When compressed air flows at high speed through the small gap between the suction cup and the surface of the black film, according to Bernoulli's principle, the air pressure flowing through the gap will decrease, thereby forming a low-pressure area between the suction cup and the object. Due to the high pressure of the surrounding air, the black film will be adsorbed on the suction cup, realizing contactless handling. The Bernoulli suction cup has the characteristic of strong adsorption force. In the film picking stage, the device does not need to contact the black film to pick up the upward black film. Subsequently, the black film is further adsorbed by the first suction cup 5.

[0044] Example 2:

[0045] This embodiment is similar to Embodiment 1, except that, in this embodiment, as shown... Figure 2 As shown, multiple support rods 12 are sequentially connected in the vertical direction of the crossbar 11. Each first suction cup 5 is slidably connected to the bottom of each support rod 12. Each support rod 12 is fitted with a return spring 13. One end of each return spring 13 abuts against the crossbar 11, and the other end of each return spring 13 abuts against each first suction cup 5.

[0046] In this embodiment, the tension of each return spring 13 can keep each first suction cup 5 extended, thereby keeping each first suction cup 5 at the same horizontal height. During the film application process, each first suction cup 5 can adjust its position according to the surface structure of the car window frame, such as if the surface car window frame is curved, so that the curved posture of the black film fits the car window frame, improving the film application quality.

[0047] Example 3:

[0048] This embodiment is similar to Embodiment 1, except that, in this embodiment, as shown... Figure 1 , 3 As shown, the bracket 1 is equipped with a rotary cylinder 7 connected to the solenoid valve group 21. The power output end of the rotary cylinder 7 is connected to a flipping frame 8. The flipping frame 8 is equipped with an air clamp 82, which is connected to the solenoid valve group 21. The rotary cylinder 7 drives the flipping frame 8 to rotate so that the air clamp 82 corresponds to the position of the push rod 3.

[0049] In this embodiment, the tilting frame 8 is an L-shaped mechanism, and the rotating cylinder 7 drives the tilting frame 8 to rotate 180° under the drive of the solenoid valve group 21.

[0050] Specifically, there are two air clips 82, which are respectively located on both sides of the push rod 3.

[0051] In this embodiment, two air clamps 82 clamp the two sides of the black film respectively.

[0052] Specifically, the flipping frame 8 is provided with two sliding holes 81, and the two air clamps 82 are slidably connected to the two sliding holes 81 respectively.

[0053] In this embodiment, the two air clamps 82 are fixed by fasteners after their positions are adjusted.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An auxiliary device for installing automotive black film, characterized in that, The system includes a bracket (1), a controller (2), a solenoid valve assembly (21), a push rod (3), a telescopic cylinder (4), a vacuum generator (51), and several first suction cups (5). The controller (2) is mounted on the bracket (1), and the several first suction cups (5) are sequentially arranged at the bottom of the bracket (1). The solenoid valve assembly (21) is mounted on the bracket (1) and electrically connected to the controller (2). The vacuum generator (51) is mounted on the bracket (1), and its output end is connected to the controller (2). The solenoid valve assembly (21) is connected to the first suction cup (5), the control end of the vacuum generator (51) is electrically connected to the controller (2), the push rod (3) is located at the bottom of the bracket (1) and between two adjacent first suction cups (5), the telescopic cylinder (4) is located on the bracket (1) and connected to the solenoid valve assembly (21), the power output end of the telescopic cylinder (4) is connected to the push rod (3) to drive the push rod (3) to lift the back paper of the black film.

2. The automotive black film installation auxiliary device according to claim 1, characterized in that, The bottom of the bracket (1) extends downward to form a connecting part (14), and a crossbar (11) is fixed on the connecting part (14). Several first suction cups (5) are vertically installed at the bottom of the crossbar (11).

3. The automotive black film installation auxiliary device according to claim 1, characterized in that, Each of the first suction cups (5) is a vacuum suction cup, and each of the first suction cups (5) is connected in series through the provided pipes (9).

4. The automotive black film installation auxiliary device according to claim 2, characterized in that, Multiple support rods (12) are connected in sequence in the vertical direction of the crossbar (11). Each first suction cup (5) is slidably connected to the bottom of each support rod (12). Each support rod (12) is fitted with a return spring (13). One end of each return spring (13) abuts against the crossbar (11), and the other end of each return spring (13) abuts against each first suction cup (5).

5. The automotive black film installation auxiliary device according to claim 2, characterized in that, The telescopic cylinder (4) is vertically fixed at the bottom of the crossbar (11). The air source input control end of the telescopic cylinder (4) is connected to the solenoid valve group (21), and the power output end of the telescopic cylinder (4) is connected to the push rod (3).

6. The automotive black film installation auxiliary device according to claim 5, characterized in that, The bottom of the push rod (3) is provided with an abutment part (31) for lifting the black film, and the abutment part (31) is an arc-shaped sheet structure.

7. The automotive black film installation auxiliary device according to claim 2, characterized in that, The crossbar (11) is also provided with several second suction cups (6) connected to the solenoid valve group (21). The second suction cups (6) are Bernoulli suction cups and are used to pick up the black film.

8. The automotive black film installation auxiliary device according to claim 1, characterized in that, The bracket (1) is provided with a rotary cylinder (7) connected to the solenoid valve group (21). The power output end of the rotary cylinder (7) is connected to a flipping frame (8). The flipping frame (8) is provided with an air clamp (82). The air clamp (82) is connected to the solenoid valve group (21). The rotary cylinder (7) drives the flipping frame (8) to rotate so that the air clamp (82) corresponds to the position of the push rod (3).

9. The automotive black film installation auxiliary device according to claim 8, characterized in that, Two air clips (82) are provided, and the two air clips (82) are respectively located on both sides of the push rod (3).

10. The automotive black film installation auxiliary device according to claim 9, characterized in that, The flipping frame (8) is provided with two sliding holes (81) respectively, and the two air clamps (82) are slidably connected to the two sliding holes (81).

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