Film laminating equipment for automobile seat production

Abstract

The invention belongs to the technical field of automobile seat processing, and particularly relates to automobile seat production film covering equipment which comprises a working table, a fixing device is arranged at the bottom of the working table and used for fixedly arranging an automobile seat, and a film pasting arm and a film pressing arm are arranged on the two sides of the working table correspondingly. When the film pasting arm is used for pasting a film on the automobile seat, the film pressing arm is used for pressing the space between the automobile seat and the film, and a placement plate is arranged on the film pressing arm; through the flexible arrangement of the annular air bag and the cooperation of the pressing and covering assembly and the constant pressure assembly, when the membrane and the automobile seat are pressed, self-adaptive deformation can be conducted between the annular air bag and the seat curved surface contour, and therefore the annular air bag is in an arc-shaped contour shape matched with the seat curved surface during moving; and compared with a traditional rigid pressing plate for pressing the two parts, the annular air bag can better press the two parts, and film covering operation of the automobile seat is better facilitated.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile seat processing, and in particular relates to an automobile seat production film coating device. BACKGROUND

[0002] An automobile seat is a device installed in an automobile interior for a driver or passenger to sit on, which not only provides comfortable support, but also is a key component of a vehicle passive safety system, and integrates human engineering, material science, mechanical design and electronic technology. From the first automobile born in 1886, a simple wooden stool, to the current intelligent multifunctional seat cabin, the automobile seat has evolved from a simple seat to a mobile comfortable space and a safety protection barrier.

[0003] Automobile seat production film coating processing is a core industrialized process after the forming of a seat cover and before the assembly in the automobile seat manufacturing process. Through systematic operations such as piece pretreatment, accurate positioning, flexible pressing, curing and finishing, and quality detection, a preformed functional film or flexible sheet is tightly attached to the human contact surface of the seat cover, and the core goal of protecting the base material, optimizing the touch feeling and expanding the function is finally achieved. It is a key processing link for improving the durability, comfort and product added value of the seat.

[0004] In the prior art, when the automobile seat is produced and coated, a rigid pressing plate is usually used to press the seat cover and the film sheet. Since the surface of the automobile seat is mostly a special-shaped seat cover, when the rigid pressing plate is used to press it, the film coating may not be tightly attached, which leads to wrinkles and bubbles at the corners and curved surfaces of the automobile seat at the end of the film coating, and is not conducive to the film coating operation of the special-shaped seat cover.

[0005] Therefore, the application provides an automobile seat production film coating device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background.

[0007] The technical scheme adopted by the present application to solve its technical problems is: the automobile seat production laminating equipment comprises a workbench, a fixing device is arranged at the bottom of the workbench and is used for fixing and arranging the automobile seat, a film pasting arm and a film pressing arm are arranged at the two sides of the workbench respectively, the film pasting arm is used for pasting the film on the automobile seat, the film pressing arm is used for pressing the automobile seat and the film, a mounting plate is arranged on the film pressing arm, symmetrical frame plates are arranged at the bottom of the mounting plate, a constant pressure assembly is arranged between the two frame plates, the constant pressure assembly comprises a pressing block, the constant pressure assembly is used for driving the pressing block to press the film and the automobile seat in the middle, a pressure covering assembly is arranged below each of the two frame plates, the two pressure covering assemblies are arranged on one side of the constant pressure assembly respectively, the pressure covering assembly comprises a ring-shaped air bag, and the pressure covering assembly is used for driving the ring-shaped air bag to press and cover the film and the automobile seat.

[0008] Preferably, the constant pressure assembly further comprises a hanging plate, the hanging plate is fixedly installed at the middle position of the bottom of the mounting plate, the pressing block is arranged at the bottom of the hanging plate, a plurality of pressure bearing springs are arranged between the top of the pressing block and the bottom of the hanging plate, and the pressing block is an elastic soft rubber block.

[0009] Preferably, a plurality of sleeve rods are fixedly installed at the bottom of the hanging plate, the inner walls of the plurality of sleeve rods are slidably connected with a plurality of ball rods, the ball ends of the plurality of ball rods are movably connected with the inner wall of the top of the pressing block, and the plurality of ball rods are arranged in the plurality of pressure bearing springs respectively.

[0010] Preferably, the pressure covering assembly further comprises a shaft rod, the ring-shaped air bag is arranged outside the shaft rod, the outer wall of the ring-shaped air bag can be in contact with one end of the top of the pressing block, the two ends of the shaft rod are fixedly connected with the bottom of the frame plate, a plurality of split rings are arranged in the ring-shaped air bag, a plurality of air cavities are formed between the plurality of split rings, and the outer wall of the ring-shaped air bag can be in contact with the outer wall of the automobile seat.

[0011] Preferably, a plurality of air exchange devices are fixedly installed on the outer wall of the shaft rod, the number of the air exchange devices is the same as that of the plurality of air cavities and the positions of the air exchange devices correspond to those of the plurality of air cavities, a plurality of pipe mouths are fixedly installed on the inner walls of the plurality of air cavities, and a plurality of air flow hoses are arranged between the plurality of pipe mouths and the plurality of air exchange devices.

[0012] Preferably, a plurality of hollow shafts are fixedly installed on the outer wall of the air exchange device, a plurality of round rods are fixedly installed on the inner side of the ring-shaped air bag, the outer walls of the plurality of round rods are slidably connected with the inner walls of the plurality of hollow shafts, pressure measuring pieces are fixedly installed on the inner walls of the plurality of hollow shafts, and pressure measuring springs are arranged between the top of each of the plurality of pressure measuring pieces and the bottom of each of the plurality of round rods.

[0013] Preferably, a plurality of limiting plates are arranged between the ring-shaped air bag and the frame plate, the plurality of limiting plates are arranged above the plurality of air cavities respectively, the plurality of limiting plates are circular half-ring covers, and the outer wall of the ring-shaped air bag can be in contact with the inner wall of the plurality of limiting plates.

[0014] Preferably, each of the multiple limiting plates has a slide rod fixedly installed on its top, the outer wall of each slide rod is slidably connected to the inner wall of the frame plate, and multiple return springs are provided between the top of the multiple limiting plates and the bottom of the frame plate, with each return spring placed outside the multiple slide rods.

[0015] Preferably, guide rails are symmetrically fixedly installed on the top of the mounting plate, electric sliders are slidably installed inside the two guide rails, connecting rods are fixedly installed on the outer walls of the two electric sliders, the bottom ends of the two connecting rods are fixedly connected to the frame plate, the outer walls of the two connecting rods are slidably connected to the inner wall of the mounting plate, and vision sensors are symmetrically fixedly installed on the bottom of the mounting plate.

[0016] Preferably, the work platform is symmetrically equipped with conveyor belts for transporting vehicles. Four transfer arms are symmetrically arranged between the two conveyor belts. The four transfer arms work together to place the car seat into the work platform. The four transfer arms are respectively placed at the four corners of the work platform.

[0017] The beneficial effects of this invention are as follows: 1. The automotive seat laminating equipment of the present invention, through the flexible setting of the annular airbag, in conjunction with the setting of the pressing component and the constant pressure component, allows the annular airbag and the curved contour of the seat to adaptively deform when the film is pressed between them. This allows the annular airbag to be positioned in an arc-shaped contour that matches the curved surface of the seat when it moves. Compared with the traditional rigid pressure plate pressing between the two, the annular airbag can press the two better, which is more conducive to the laminating operation of automotive seats.

[0018] 2. The automotive seat production laminating equipment of the present invention, when the bottom of the pressing block contacts the film, the mounting plate drives the hanging plate to continue moving. With the elastic setting of the pressing block itself, the bottom of the pressing block will push the film to fit tightly against the outer wall of the automotive seat, thereby centeredly pressing the film and the automotive seat. When the subsequent pressing component drives the annular airbag to laminate between the two, the two pressing components can drive the two annular airbags to laminate from the center position to both sides, which can speed up the laminating efficiency of the automotive seat and is more conducive to the laminating operation during automotive seat production.

[0019] 3. The automotive seat production laminating equipment of the present invention, when the pressure block finishes pressing the film between the film and the automotive seat, pushes two annular airbags to move from both sides of the pressure block to both ends of the film. The two annular airbags will then move from the middle position of the film to adaptively press the film and the automotive seat tightly, thereby achieving the function of pressing the film and the automotive seat to adhere.

[0020] 4. The automotive seat production film coating equipment of the present invention processes the gas in multiple air chambers through multiple air exchange devices, performs multiple extraction and minor replenishment of gas in multiple air chambers to ensure that the air pressure in multiple air chambers is in a balanced state, and allows for pressure zoned control of the air chambers in the annular airbag. This ensures that the extrusion pressure at each position of the annular airbag is at the same value, so that the annular airbag can apply uniform pressure to the corners and grooves of key areas such as seat cushions, backrests, and edges, avoiding wrinkles and preventing problems such as loose corner adhesion.

[0021] 5. The automotive seat production lamination equipment of the present invention, when gas compresses the inner wall of the annular airbag and moves, the annular airbag will drive the round rod to move within the hollow shaft. The round rod will then compress the pressure measuring spring within the hollow shaft and move accordingly. The pressure measuring plate within the hollow shaft will sense the gas movement in each air chamber through the continuous pressure sensing of the pressure measuring spring, and provide real-time feedback of the pressure data in each air chamber. The ventilation device will then dynamically adjust the gas content in each air chamber based on the information fed back by the pressure measuring plate, thereby adjusting the pressure at each position within the annular airbag to ensure pressure uniformity during the pressing process. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is an overall diagram of the invention; Figure 2 This is a main body diagram of the present invention; Figure 3 This is a schematic diagram of the structure at the mounting plate in this invention; Figure 4 This is a schematic diagram of the structure at the connecting rod in this invention; Figure 5 This is a schematic diagram of the structure of the pressure block in this invention; Figure 6 This is a schematic diagram of the structure of the limiting plate in this invention; Figure 7 This is a schematic diagram of the air cavity structure in this invention; Figure 8 This is a schematic diagram of the airflow hose in this invention; Figure 9 This is a schematic diagram of the structure at the round rod in this invention; Figure 10 This is a schematic diagram of the structure of the cue in this invention.

[0024] In the diagram: 1. Workbench; 101. Fixing device; 2. Conveyor belt; 201. Transfer arm; 3. Film-applying arm; 301. Film-pressing arm; 4. Mounting plate; 5. Annular airbag; 501. Air chamber; 502. Dividing ring; 6. Guide rail; 601. Electric slider; 602. Connecting rod; 7. Frame plate; 8. Pressure block; 801. Pressure spring; 802. Ball rod; 803. Sleeve rod; 9. Hanging plate; 10. Limiting plate; 1001. Sliding rod; 1002. Return spring; 11. Shaft; 12. Ventilation device; 1201. Airflow hose; 1202. Pipe opening; 13. Hollow shaft; 1301. Pressure measuring plate; 1302. Pressure measuring spring; 14. Round rod; 15. Vision sensor. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] like Figures 1 to 10 As shown in the embodiment of the present invention, a car seat production film coating equipment includes a workbench 1. A fixing device 101 is provided at the bottom of the workbench 1 for fixing the car seat. A film-applying arm 3 and a film-pressing arm 301 are respectively provided on both sides of the workbench 1. The film-applying arm 3 is used to apply the film to the car seat, and the film-pressing arm 301 is used to press the car seat and the film. A mounting plate 4 is provided on the film-pressing arm 301. A frame plate 7 is symmetrically provided at the bottom of the mounting plate 4. A constant pressure component is provided between the two frame plates 7. The constant pressure component includes a pressure block 8. The constant pressure component is used to drive the pressure block 8 to press the film and the car seat in a centered manner. A pressing component is provided below each of the two frame plates 7. The two pressing components are respectively placed on one side of the constant pressure component. The pressing component includes an annular airbag 5. The pressing component is used to drive the annular airbag 5 to press and apply the film and the car seat. Since car seats often have irregularly shaped seat covers, when a rigid pressure plate presses them, the film may not adhere tightly, resulting in wrinkles and bubbles at the edges and curved surfaces of the car seat after the film is applied. When applying film to car seats, the car seat is placed on top of the worktable 1, and then the fixing device 101 is driven to fix it in place. Once the car seat is in place, the film-applying arm 3 is driven to apply the film to the application area of ​​the car seat. When the film is applied to the car seat, the pressure-pressing arm 301 is driven to move the pressing component and the pressure-maintaining component towards the bonding area between the film and the car seat via the mounting plate 4. When the mounting plate 4 is moved to the film-covering area between the two plates 7, the pressure-regulating assembly between the two plates 7 will drive the pressure block 8 to centrally press the film and the car seat together. Then, the pressing assembly will be activated, causing the two annular airbags 5 to move from the center between the film and the car seat to both sides. Simultaneously, the pressing assembly will cause the annular airbags 5 to use pneumatic pressure to compress the film between the two surfaces. The annular airbags 5, through their movement, will press and adhere the film between the two surfaces, thus achieving the film covering of the car seat. In this process, the flexible material of the annular airbag 5, combined with the pressing and pressure-regulating components, allows the annular airbag 5 to adaptively deform with the curved contour of the seat when the film is pressed against it. This results in the annular airbag 5 moving in an arc-shaped contour that matches the seat's curvature. Compared to the traditional rigid pressure plate, the annular airbag 5 provides better pressure, making the film application to the car seat more efficient. It should be noted that both the pressing arm 301 and the applying arm 3 are omnidirectional rotating robotic arms, mainly composed of a drive system, basic support, and connecting components. They can rotate with multiple degrees of freedom, enabling flexible rotation in three-dimensional space and completing various complex tasks. They are mainly used for the cooperation between the applying arm 3 and the pressing arm 301 to apply film to the car seat. The fixing device 101 includes hydraulic rods and clamps, mainly used to fix the car seat placed on the worktable 1. Both are existing technologies, so they are only described in this solution, and their specific structures are not shown.

[0027] like Figures 4 to 10 As shown, the constant pressure assembly also includes a hanging plate 9, which is fixedly installed at the bottom center of the mounting plate 4. The pressure block 8 is placed at the bottom of the hanging plate 9. Multiple pressure springs 801 are provided between the top of the pressure block 8 and the bottom of the hanging plate 9. The pressure block 8 is an elastic soft rubber block. When the pressure arm 301 moves the mounting plate 4 to the position between the diaphragm and the car seat, the mounting plate 4 moves between the diaphragm and the car seat via the pressure arm 301. The mounting plate 4 then moves the pressure block 8 between the two via the hanging plate 9. When the bottom of the pressure block 8 contacts the diaphragm, it is restricted from further movement. The mounting plate 4 continues to move the hanging plate 9, and with the elasticity of the pressure block 8 itself, the bottom of the pressure block 8 pushes the diaphragm to fit tightly against the outer wall of the car seat. The mounting plate 4 then moves the hanging plate 9 to push the pressure spring 801 towards the pressure block 8. Step 8 will perform a centering and pressing operation between the diaphragm and the car seat, which serves to center and press the diaphragm and the car seat together for lamination. The purpose of this setting is, on the one hand, to fix the diaphragm and the car seat in a centered position, which facilitates the subsequent lamination component to drive the annular airbag 5 to perform the lamination operation between the diaphragm and the car seat. On the other hand, when the subsequent lamination component drives the annular airbag 5 to lamination between the two, the two lamination components can drive the two annular airbags 5 to lamination from the center position to both sides, which can speed up the lamination efficiency of the car seat and make it more conducive to the lamination operation during the production of car seats.

[0028] like Figures 5 to 10 As shown, multiple sleeve rods 803 are fixedly installed at the bottom of the hanging plate 9. Ball rods 802 are slidably connected to the inner walls of the multiple sleeve rods 803. The ball ends of the multiple ball rods 802 are movably connected to the top inner wall of the pressure block 8. The multiple ball rods 802 are respectively placed inside the multiple pressure springs 801. When the bottom of the pressure block 8 contacts the diaphragm, the mounting plate 4 pushes the hanging plate 9 to continue moving. The sleeve rod 803 will slide outside the ball rod 802, and the bottom end of the ball rod 802 will rotate on the pressure block 8. When the bottom of the pressure block 8 pushes the diaphragm to fully fit against the outer wall of the car seat, the pressure arm 301 stops working, and the sleeve rod 803 will stop moving outside the ball rod 802. This serves to cooperate with the pressure spring 801 to drive the pressure block 8 to move. At the same time, it can also strengthen the connection between the hanging plate 9 and the pressure block 8, preventing the pressure block 8 and the hanging plate 9 from shifting or dislodging during operation, which would affect the centering and pressing operation between the diaphragm and the car seat.

[0029] like Figures 5 to 7 As shown, the pressing assembly also includes a shaft 11, an annular airbag 5 is placed outside the shaft 11, the outer wall of the annular airbag 5 can fit and contact the top end of the pressing block 8, both ends of the shaft 11 are fixedly connected to the bottom of the frame plate 7, the annular airbag 5 is provided with multiple dividing rings 502 inside, multiple air chambers 501 are formed between the multiple dividing rings 502, and the outer wall of the annular airbag 5 can fit and contact the outer wall of the car seat. Before use, gas is introduced into the air chamber 501 formed between the multiple dividing rings 502 inside the annular airbag 5. The gas will inflate the annular airbag 5 in the air chamber 501, thus forming a complete airbag. When the pressure block 8 finishes pressing the diaphragm and the car seat in a centered position, the two annular airbags 5 can then be moved from both sides of the pressure block 8 to both ends of the diaphragm. The two annular airbags 5 will then move from the middle position of the diaphragm to adaptively press the diaphragm and the car seat tightly together, thus pressing the diaphragm and the car seat together. It should be noted that in the initial state, all the air chambers 501 contain gas, and the gas content in all the air chambers 501 is the same. The dividing rings 502 are made of soft rubber, and the annular airbag 5 should be covered with a silicone cushioning layer. The flexible contact of the silicone cushioning layer can prevent the leather from being scratched.

[0030] like Figures 7 to 8 As shown, multiple ventilation devices 12 are fixedly installed on the outer wall of the shaft 11. The number of ventilation devices 12 is the same as the number of multiple air chambers 501 and their positions correspond to each other. Multiple pipe ports 1202 are fixedly installed on the inner wall of each of the multiple air chambers 501. Multiple airflow hoses 1201 are provided between each of the multiple pipe ports 1202 and the multiple ventilation devices 12. When the annular airbag 5 comes into contact with the diaphragm and the car seat, because the car seat cover is irregularly shaped, the gas in the multiple air chambers 501 is restricted to move within the air chambers 501 due to the convex or concave surface of the car seat. This results in uneven pressure at different locations within the annular airbag 5. At this point, multiple ventilation devices 12 can be activated. These devices process the gas in the multiple air chambers 501 through airflow hoses 1201 and nozzles 1202, performing a process of extracting more gas and replenishing less in the multiple air chambers 501, thereby maintaining the air pressure within the multiple air chambers 501. The balanced state allows for pressure zone adjustment of the air chamber 501 within the annular airbag 5, ensuring that the compression pressure at all locations of the annular airbag 5 is at the same value. This allows the annular airbag 5 to apply uniform pressure to the corners and grooves of key areas such as the seat cushion, backrest, and edges, preventing wrinkles and ensuring a tight fit at the corners. It should be noted that the ventilation device 12 includes an air extraction component and an air replenishment component. The air extraction component mainly consists of a vacuum pump and a filter, while the air replenishment component mainly consists of an air replenishment pump and an air storage tank. Both are primarily used for replenishing and extracting air from the air chamber 501. Both are existing technologies, so they are only described in this solution without showing their specific structures.

[0031] like Figures 8 to 9As shown, multiple hollow shafts 13 are fixedly installed on the outer wall of the ventilation device 12, and multiple round rods 14 are fixedly installed on the inner side of the annular airbag 5. The outer walls of the multiple round rods 14 are slidably connected to the inner walls of the multiple hollow shafts 13, and pressure measuring plates 1301 are fixedly installed on the inner walls of the multiple hollow shafts 13. Pressure measuring springs 1302 are provided between the top of the multiple pressure measuring plates 1301 and the bottom of the multiple round rods 14. When the gas moves within the air chamber 501, constrained by the concave and convex surfaces of the car seat, it compresses the inner wall of the annular airbag 5, causing it to move. The annular airbag 5 is then propelled by the gas, causing the round rod 14 to move within the hollow shaft 13. The round rod 14 then compresses the pressure-sensing spring 1302 within the hollow shaft 13, causing it to move. The pressure sensor 1301 within the hollow shaft 13 senses the gas movement within each air chamber 501 through the continuous pressure sensing of the pressure-sensing spring 1302, providing real-time feedback of the pressure data within each air chamber 501. The ventilation device 12 then dynamically adjusts the gas content within each air chamber 501 based on the information fed back from the pressure sensor 1301, thereby adjusting the pressure at various locations within the annular airbag 5 to ensure pressure uniformity during the pressing process. This serves to detect whether the pressure at various points within the annular airbag 5 is uniform.

[0032] like Figures 1 to 2 As shown, multiple limiting plates 10 are provided between the annular airbag 5 and the frame plate 7. The multiple limiting plates 10 are respectively placed above the multiple air chambers 501. The multiple limiting plates 10 are all circular semi-circular covers. The outer wall of the annular airbag 5 can fit and contact the inner wall of the multiple limiting plates 10. When gas pushes the annular airbag 5 to move within the air chamber 501, the outer wall of the annular airbag 5 is restricted by the contact between the inner wall of the limiting plate 10 and the outer wall of the annular airbag 5. Combined with the squeezing and pushing of the bottom of the annular airbag 5 by the car seat, the gas in the air chamber 501 will push the annular airbag 5 to move inward within the air chamber 501. The annular airbag 5 will then push the round rod 14 to squeeze the pressure measuring spring 1302 within the hollow shaft 13 to detect the pressure response. This allows the pressure measuring plate 1301 to better detect and respond to the pressure situation within the air chamber 501, thus limiting the position of the annular airbag 5.

[0033] like Figures 6 to 7 As shown, a sliding rod 1001 is fixedly installed on the top of each of the multiple limiting plates 10, and the outer wall of each sliding rod 1001 is slidably connected to the inner wall of the frame plate 7. A multiple return spring 1002 is provided between the top of each of the multiple limiting plates 10 and the bottom of the frame plate 7, and the multiple return springs 1002 are respectively placed outside the multiple sliding rods 1001. When the annular airbag 5 comes into contact with the car seat cover, it is restricted by the car seat cover and moves towards the frame plate 7 by the slide rod 1001 pressing the return spring 1002 within the limiting plate 10. When the outer wall of the annular airbag 5 is in complete contact with the diaphragm, the return spring 1002 pushes the annular airbag 5 and the diaphragm together through the limiting plate 10, preventing the annular airbag 5 and the diaphragm from not being tightly fitted, thus promoting contact between the annular airbag 5 and the diaphragm.

[0034] like Figures 4 to 6 As shown, guide rails 6 are symmetrically fixedly installed on the top of the mounting plate 4. Electric sliders 601 are slidably installed inside the two guide rails 6. Connecting rods 602 are fixedly installed on the outer walls of the two electric sliders 601. The bottom ends of the two connecting rods 602 are fixedly connected to the frame plate 7. The outer walls of the two connecting rods 602 are slidably connected to the inner wall of the mounting plate 4. Visual sensors 15 are symmetrically fixedly installed on the bottom of the mounting plate 4. When the pressure block 8 finishes centering and pressing the diaphragm between the film and the car seat, the electric slider 601 slides within the guide rail 6. The electric slider 601 then moves the frame plate 7 via the connecting rod 602, thereby moving the annular airbag 5 between the electric slider 601 and the frame plate 7. The annular airbag 5 moves to press and adhere the film between the diaphragm and the car seat. At the same time, the vision sensor 15 monitors the two in real time, reflecting the situation during the adhesion process and detecting the film quality. This serves to move the annular airbag 5 to adhere the film between the diaphragm and the car seat.

[0035] like Figures 1 to 2 As shown, conveyor belts 2 are symmetrically arranged on the outside of the work platform 1. The conveyor belts 2 are used to transport the car. Four transfer arms 201 are symmetrically arranged between the two conveyor belts 2. The four transfer arms 201 are used to cooperate with each other to place the car seat in the work platform 1. The four transfer arms 201 are respectively placed at the four corners of the work platform 1. When conveying car seats, the car is placed on conveyor belt 2. When conveyor belt 2 transports the car seat to the vicinity of workbench 1, the conveying stops, and multiple transfer arms 201 work together to place the car seat conveyed from conveyor belt 2 into workbench 1 for film coating. When the film coating of the car seat is finished, the multiple transfer arms 201 are driven again to work together to transfer the filmed car seat to another conveyor belt 2 for further processing. By setting up two conveyor belts 2 and multiple transfer arms 201, the film coating operation of car seats can be realized during production, which plays the role of conveying and placing car seats. It should be noted that the transfer arm 201 is a clamping robotic arm, which mainly includes basic support and connecting parts and clamping parts. It is mainly used to move car seats and is existing technology. Therefore, it is only described in this solution and the specific structure is not shown.

[0036] Working Principle: When applying film to car seats, the car seat is placed on top of the worktable 1, and then the fixing device 101 is driven to fix it in place. Once the car seat is in place, the film-applying arm 3 is driven to apply the film to the application area of ​​the car seat. When the film is applied to the car seat, the pressing arm 301 is driven to move the pressing component and the pressure-regulating component towards the bonding area between the film and the car seat via the mounting plate 4. When the mounting plate 4 is positioned at the film-applying area, the pressure-regulating component between the two mounting plates 7 drives the pressure block 8 to center and press the film against the car seat. Then, the pressing component is driven to apply the film, which in turn moves the two... An annular airbag 5 moves from the middle between the diaphragm and the car seat to both sides. As it moves, the pressing component drives the annular airbag 5 to squeeze the two together using pneumatic pressure. The annular airbag 5 then presses the film between the two together, thus achieving the filming operation of the car seat. Due to the flexible material of the annular airbag 5, combined with the setting of the pressing component and the pressure-regulating component, when the diaphragm and the car seat are pressed together, the annular airbag 5 can adaptively deform with the curved contour of the seat. This allows the annular airbag 5 to be positioned in an arc-shaped contour that matches the curved surface of the seat when it moves. Compared with the traditional rigid pressure plate that presses the two together, the annular airbag 5 can press the two together better, which is more conducive to the filming operation of the car seat. When the pressing arm 301 moves the mounting plate 4 to the position between the film and the car seat, the mounting plate 4 is moved between the film and the car seat by driving the pressing arm 301. The mounting plate 4 will then move the pressure block 8 between the two via the hanging plate 9. When the bottom of the pressure block 8 contacts the film, the pressure block 8 will be restricted and unable to move. The mounting plate 4 will drive the hanging plate 9 to continue moving. With the elastic setting of the pressure block 8 itself, the bottom of the pressure block 8 will push the film to fit tightly against the outer wall of the car seat. The mounting plate 4 will drive the hanging plate 9 to push the pressure spring 801 to move towards the pressure block 8. The pressure block 8 will then perform a centering pressure operation between the film and the car seat, playing the role of centering the pressure of the film and the car seat for film bonding. When the bottom of the pressure block 8 contacts the diaphragm, the mounting plate 4 pushes the hanging plate 9 to continue moving. The sleeve rod 803 will slide outside the ball rod 802, and the bottom end of the ball rod 802 will rotate on the pressure block 8. When the bottom of the pressure block 8 pushes the diaphragm to fully fit against the outer wall of the car seat, the pressing arm 301 stops working, and the sleeve rod 803 will stop moving outside the ball rod 802. This serves to cooperate with the pressure spring 801 to drive the pressure block 8 to move. At the same time, it can also strengthen the connection between the hanging plate 9 and the pressure block 8, preventing the pressure block 8 and the hanging plate 9 from shifting or dislodging during operation, which would affect the centering and pressing operation between the diaphragm and the car seat. When the pressure block 8 finishes pressing the diaphragm and the car seat in a centered position, the two annular airbags 5 can then be pushed from both sides of the pressure block 8 toward both ends of the diaphragm. The two annular airbags 5 will then move from the middle position of the diaphragm to adaptively press the diaphragm and the car seat tightly together, thus achieving the function of pressing the diaphragm and the car seat together. When the annular airbag 5 comes into contact with the diaphragm and the car seat, because the car seat cover is irregularly shaped, when the annular airbag 5 contacts the diaphragm and presses against it, the gas in the multiple air chambers 501 will be restricted to move within the air chambers 501 by the convex or concave surfaces of the car seat. This results in uneven pressure at different locations within the annular airbag 5. At this time, multiple ventilation devices 12 can be activated, and the multiple ventilation devices 12 will then operate through the airflow hose 1201 and the nozzle. 1202 processes the gas in multiple air chambers 501 by performing a process of extracting more gas and replenishing less gas in multiple air chambers 501, thereby balancing the air pressure in multiple air chambers 501. This allows for pressure zone control of the air chambers 501 in the annular airbag 5, ensuring that the compression pressure at each position of the annular airbag 5 is at the same value. This allows the annular airbag 5 to apply uniform pressure to the corners and grooves of key areas such as the seat cushion, backrest, and edges, preventing wrinkles and avoiding problems such as loose corner fitting. When the gas moves within the air chamber 501, constrained by the concave and convex surfaces of the car seat, it compresses the inner wall of the annular airbag 5. The annular airbag 5 is then propelled by the gas, causing the round rod 14 to move within the hollow shaft 13. The round rod 14 then compresses the pressure-sensing spring 1302 within the hollow shaft 13. The pressure-sensing plate 1301 within the hollow shaft 13 senses the gas movement within each air chamber 501 through the continuous pressure sensing of the pressure-sensing spring 1302, providing real-time feedback of the pressure data within each air chamber 501. The ventilation device 12 then dynamically adjusts the gas content within each air chamber 501 based on the information fed back from the pressure-sensing plate 1301, thereby adjusting the pressure at various locations within the annular airbag 5 to ensure pressure uniformity during the pressing process. This serves to detect whether the pressure at various points within the annular airbag 5 is uniform. When gas pushes the annular airbag 5 to move within the air chamber 501, the outer wall of the annular airbag 5 is restricted by the contact between the inner wall of the limiting plate 10 and the outer wall of the annular airbag 5. Combined with the squeezing and pushing of the bottom of the annular airbag 5 by the car seat, the gas in the air chamber 501 will push the annular airbag 5 to move inward within the air chamber 501. The annular airbag 5 will then push the round rod 14 to squeeze the pressure measuring spring 1302 within the hollow shaft 13 to detect the pressure response. This allows the pressure measuring plate 1301 to better detect and respond to the pressure situation within the air chamber 501, thus limiting the position of the annular airbag 5. When the annular airbag 5 comes into contact with the car seat cover, it will be restricted by the car seat cover and move towards the frame plate 7 by the slide rod 1001 pressing the return spring 1002 within the limiting plate 10. When the outer wall of the annular airbag 5 is in complete contact with the diaphragm, the return spring 1002 will push the annular airbag 5 and the diaphragm to fit together through the limiting plate 10, preventing the annular airbag 5 and the diaphragm from not fitting tightly, and thus promoting the contact between the annular airbag 5 and the diaphragm. When the pressure block 8 finishes centering the pressure between the diaphragm and the car seat, the electric slider 601 slides within the guide rail 6. The electric slider 601 then moves the frame plate 7 via the connecting rod 602, thereby moving the annular airbag 5 through the frame plate 7. The annular airbag 5 moves between the diaphragm and the car seat for pressing and bonding. Simultaneously, the vision sensor 15 monitors the two in real time, reflecting the bonding situation and detecting the bonding quality, thus playing the role of moving the annular airbag 5 to bond the diaphragm and the car seat. When conveying car seats, the car is placed on the conveyor belt 2. When the conveyor belt 2 transports the car seat to the vicinity of the worktable 1, the conveying stops, and multiple transfer arms 201 work together to place the car seat conveyed from the conveyor belt 2 into the worktable 1 for film coating. When the film coating of the car seat is finished, the multiple transfer arms 201 are driven again to work together to transfer the filmed car seat to another conveyor belt 2 for transport to the next step of processing. By setting up two conveyor belts 2 and multiple transfer arms 201, the automated film coating operation of car seats can be realized during production, which plays the role of conveying and placing car seats.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A film-coating equipment for automobile seat production, characterized in that: The system includes a worktable with a fixing device at its bottom for securing the car seat. Two arms, a film-applying arm and a film-pressing arm, are located on either side of the worktable. The film-applying arm applies the film to the car seat, while the film-pressing arm presses the film between the car seat and the seat. A mounting plate is mounted on the film-pressing arm, and symmetrical support plates are positioned at the bottom of the mounting plate. A pressure-regulating assembly, including a pressure block, is positioned between the two support plates to apply centered pressure between the car seat and the film. Two pressing components, each located on one side of the pressure-regulating assembly, are positioned below the two support plates. Each pressing component includes an annular airbag, which presses the film between the car seat and the pressing assembly.

2. The automotive seat production lamination equipment according to claim 1, characterized in that: The constant pressure assembly also includes a hanging plate, which is fixedly installed at the bottom center of the mounting plate. The pressure block is placed at the bottom of the hanging plate, and multiple pressure-bearing springs are provided between the top of the pressure block and the bottom of the hanging plate. The pressure block is an elastic soft rubber block.

3. The automotive seat production lamination equipment according to claim 2, characterized in that: Multiple sleeve rods are fixedly installed at the bottom of the hanging plate. Ball rods are slidably connected to the inner walls of the multiple sleeve rods. The ball ends of the multiple ball rods are movably connected to the top inner wall of the pressure block. The multiple ball rods are respectively placed inside multiple pressure springs.

4. The automotive seat production lamination equipment according to claim 3, characterized in that: The pressing assembly also includes a shaft, with an annular airbag placed outside the shaft. The outer wall of the annular airbag can fit in contact with the top end of the pressing block. Both ends of the shaft are fixedly connected to the bottom of the frame plate. The annular airbag has multiple segmented rings inside, forming multiple air chambers between the segmented rings. The outer wall of the annular airbag can fit in contact with the outer wall of the car seat.

5. The automotive seat production lamination equipment according to claim 4, characterized in that: Multiple ventilation devices are fixedly installed on the outer wall of the shaft. The number of ventilation devices is the same as the number of air chambers and their positions correspond to each other. Multiple pipe openings are fixedly installed on the inner wall of each air chamber, and multiple airflow hoses are provided between each pipe opening and each ventilation device.

6. The automotive seat production lamination equipment according to claim 5, characterized in that: Multiple hollow shafts are fixedly installed on the outer wall of the ventilation device, and multiple round rods are fixedly installed on the inner side of the annular airbag. The outer walls of the multiple round rods are slidably connected to the inner walls of the multiple hollow shafts. Pressure measuring plates are fixedly installed on the inner walls of the multiple hollow shafts, and pressure measuring springs are provided between the top of the multiple pressure measuring plates and the bottom of the multiple round rods.

7. The automotive seat production lamination equipment according to claim 6, characterized in that: Multiple limiting plates are provided between the annular airbag and the frame plate. The multiple limiting plates are placed above the multiple air chambers. The multiple limiting plates are all circular semi-circular covers. The outer wall of the annular airbag can fit and contact the inner wall of the multiple limiting plates.

8. The automotive seat production lamination equipment according to claim 7, characterized in that: Each of the multiple limiting plates has a sliding rod fixedly installed on its top. The outer wall of each sliding rod is slidably connected to the inner wall of the frame plate. Multiple return springs are provided between the top of each limiting plate and the bottom of the frame plate, and each return spring is placed outside the sliding rod.

9. The automotive seat production lamination equipment according to claim 8, characterized in that: The top of the mounting plate is symmetrically fixed with guide rails, and electric sliders are slidably installed inside the two guide rails. Connecting rods are fixedly installed on the outer walls of the two electric sliders. The bottom ends of the two connecting rods are fixedly connected to the frame plate, and the outer walls of the two connecting rods are slidably connected to the inner wall of the mounting plate. Vision sensors are symmetrically fixedly installed at the bottom of the mounting plate.

10. The automotive seat production lamination equipment according to claim 9, characterized in that: The workbench is symmetrically equipped with conveyor belts for transporting car seats. Four transfer arms are symmetrically arranged between the two conveyor belts. The four transfer arms work together to place the car seats into the workbench. The four transfer arms are located at the four corners of the workbench.

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