A coating device for automotive interior parts

Abstract

This invention discloses a film coating device for automotive interior parts, relating to the field of automotive interior part film coating technology. It includes a worktable with a material-carrying turntable positioned at its center. The turntable has several positioning slots arranged in an array, each containing a material carrier. An unloading roller and a rewind roller are mounted on the inner side of an upper mounting frame. A film coating component for coating automotive interior parts is located between the unloading and rewind rollers. This component comprises a traction mechanism, a cutting mechanism, and a pasting mechanism. This invention achieves continuous film coating through a multi-station rotary mechanism and automatic film tensioning, resulting in high efficiency. By using an adjustable roller frame for tilting and high-pressure gas blowing, the film can be stretched without clamping, perfectly conforming to complex surfaces and eliminating air bubbles and wrinkles. Cutting the film avoids scratches, and non-contact pressing eliminates workplace injuries, eliminates edge sealing failures, improves yield, and reduces waste.

Description

Technical Field

[0001] This invention relates to the field of automotive interior parts coating technology, specifically an automotive interior parts coating device. Background Technology

[0002] As components that passengers come into direct contact with, the surface quality of automotive interior parts not only affects the aesthetics and comfort of the vehicle but also directly impacts the overall vehicle grade. After processing and molding, to protect the working surfaces of interior parts and prevent dust accumulation or scratches during handling and transfer, a protective film is usually applied to their surfaces. Currently, the industry commonly uses manual lamination, where operators use utility knives to directly cut the film. This method is prone to scratching the processed interior parts, causing damage to the finished product. Furthermore, improper knife operation often leads to workplace injuries such as cuts. In addition, manual lamination makes it difficult to ensure a smooth film layer, resulting in frequent bubbles and wrinkles, poor lamination quality, inadequate protection, high labor intensity, and low production efficiency, which cannot meet the requirements of mass production.

[0003] The authorization announcement number is CN119704646B, which discloses a film-coating device for automotive interior parts. This device uses a film-leading frame that moves in conjunction with a film holder, and utilizes a pressing block, a clamping block, and a second spring to automatically clamp the end of the film material. A negative pressure is created within the film-coating suction frame to adsorb and fix the interior parts, thus automatically completing the release, flattening, covering, and cutting of the film material, reducing the intensity and error of manual operation. However, during film coating, the film edge is fixed to the brim by the clamping block, limiting the downward extension of the film material. When dealing with interior parts with greater depth or complex shapes, the film material is difficult to completely adhere to the recessed areas of the parts. Simultaneously, the fixed film edge makes the edge seal prone to failure under the negative pressure peeling force, leading to coating failure and affecting production yield.

[0004] Based on this, an automotive interior parts coating device is now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0005] The purpose of this invention is to provide a coating device for automotive interior parts to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A film-coating device for automotive interior parts includes a worktable mounted on the upper end of a base box. An upper mounting frame is fixedly mounted on the upper end of the worktable. A material-carrying turntable is positioned at the center of the upper part of the worktable, and a plurality of positioning slots are arrayed on the turntable. Material carriers are fitted into each positioning slot. A feeding roller and a take-up roller are fitted inside the upper mounting frame, with a film strip positioned between the feeding roller and the take-up roller. Both the feeding roller and the take-up roller are mounted inside the upper end of the upper mounting frame via a connecting assembly. A film-coating component for coating automotive interior parts is positioned between the feeding roller and the take-up roller. The film-coating component comprises a traction mechanism and a cutting mechanism. The assembly comprises a coating mechanism, wherein the traction mechanism includes a fixed roller frame, and a fixed roller frame is provided on one side of both the feeding roller and the winding roller. A third support frame is symmetrically provided on the upper end of each fixed roller frame, and the third support frame is fixedly installed on the upper inner side of the upper mounting frame. A first adjusting roller frame and a second adjusting roller frame are provided between the two fixed roller frames. The first adjusting roller frame and the second adjusting roller frame are symmetrically arranged above a material carrier. A third adjusting roller frame is provided between one side of the second adjusting roller frame and the fixed roller frame. A first limiting roller and a second limiting roller are rotatably provided on the inner sides of the fixed roller frame, the first adjusting roller frame, the second adjusting roller frame and the third adjusting roller frame.

[0007] Based on the above technical solutions, the present invention also provides the following optional technical solutions: In one alternative embodiment: a fixed shaft is fixedly provided at the bottom end of the material-carrying turntable, a first bearing is installed on the fixed shaft, the first bearing is installed in the mounting groove at the upper end of the base box, the end of the fixed shaft is connected to the output end of the cam divider, the cam divider is installed inside the base box, a support bearing is installed at the bottom end of the material-carrying turntable, a fixed ring is fixedly provided in the inner ring of the support bearing, a plurality of support rods are arrayed at the bottom end of the fixed ring, the support rods are fixedly provided on the upper end of the workbench, a protective cover is installed on the outside of the upper mounting frame, the cam divider is electrically connected to the control component, and the control component is installed on one side of the protective cover.

[0008] In one alternative embodiment: a sliding rod is installed at the bottom of the material carrier, the sliding rod is slidably disposed in the sliding hole in the middle of the positioning groove at the upper end of the material turntable, and a plug-in seat is fixedly provided at the end of each sliding rod. A return spring is provided at the upper end of the plug-in seat and at the bottom end of the material turntable. A first electric cylinder is installed inside the bottom box and below the covering mechanism. The end of the first electric cylinder is provided with a plug-in connector that mates with the plug-in seat. The first electric cylinder is electrically connected to the control component. A material picking groove is symmetrically provided at the upper end of the material carrier.

[0009] In one alternative embodiment: the connecting assembly includes a first support frame, two first support frames symmetrically arranged inside the upper mounting frame, each first support frame having a limiting groove at its end, the limiting groove being inclined, extension plates fixedly provided at both ends of the feeding roller and the winding roller, each extension plate having a snap-fit ​​seat at its end, a fixed shaft fixedly provided at one end of each snap-fit ​​seat, a second bearing mounted on each fixed shaft, the second bearing mounted at the end of the second support frame, the second support frame being mounted inside the upper mounting frame, one of the fixed shafts being connected to the output end of a first motor, the first motor being mounted on one side of one of the second support frames, and the first motors being electrically connected to a control component.

[0010] In one alternative: the first adjusting roller frame is installed at the telescopic end of the second electric cylinder, the second adjusting roller frame is installed at the telescopic end of the third electric cylinder, the third adjusting roller frame is installed at the telescopic end of the fourth electric cylinder, the second, third and fourth electric cylinders are all installed inside the upper end of the upper mounting frame, the second, third and fourth electric cylinders are all electrically connected to the control component, the first limiting roller is provided with limiting ring grooves at both ends, and the second limiting roller is fixedly provided with limiting rings at the corresponding limiting ring grooves at both ends.

[0011] In one alternative embodiment: the cutting mechanism includes a cutting blade holder and a cutting frame, both of which are symmetrically arranged. The cutting blade holder is positioned above the cutting frame, and the cutting frame is installed below and between the first and second adjusting roller frames. The two cutting blade holders are respectively mounted on the telescopic ends of two sixth electric cylinders, which are mounted on the moving ends of the first ball screw linear modules. The first ball screw linear modules are all mounted on the upper end of the worktable, and the two first ball screw linear modules are arranged in a circular array. The two cutting frames are respectively mounted on the telescopic ends of two seventh electric cylinders, which are mounted on the moving ends of the second ball screw linear modules. The second ball screw linear modules are all mounted on the upper end of the worktable, and the two second ball screw linear modules are arranged in a circular array.

[0012] In one alternative: reinforcing rods are fixedly provided between both ends of the cutting blade holder, and connecting posts are fixedly provided at one end of each reinforcing rod. The two connecting posts are arranged in a circumferential array. A first positioning hole is provided at the other end of each reinforcing rod. A connecting rod is fixedly provided at one end of each cutting frame. The two connecting rods are arranged in a circumferential array. A second positioning hole is provided at the other end of each cutting frame.

[0013] In one alternative embodiment: the coating mechanism includes a coating roller, two of which are symmetrically arranged and installed between a first adjusting roller frame and a second adjusting roller frame. Each coating roller is rotatably mounted inside a sealed mounting box. Several high-pressure nozzles are arrayed on each coating roller, and the ends of the high-pressure nozzles are dynamically sealed to the interior of the sealed mounting box. Notches are provided at the bottom of the sealed mounting box and at the position of the coating roller. The ends of each coating roller are rotatably connected to a connecting head. Air inlets are provided at the ends of the coating rollers. The coating rollers communicate with the interior of the connecting head, which is connected to an external air supply component via an air pipe. The other ends of each coating roller are fixedly connected to the output end of a transmission box. The transmission box is installed inside a fixed box, which is fixedly located at the end of the sealed mounting box. The input end of the transmission box is fixedly connected to the output end of a second motor, which is fixedly located on one side of the fixed box. The sealed mounting box is fixedly connected to the telescopic end of a fifth electric cylinder, which is installed at the upper end of the upper mounting frame. The fifth electric cylinder and the second motor are electrically connected to a control component.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention utilizes a multi-station rotary mechanism consisting of a material carrier turntable and a cam divider, combined with automatic unwinding and rewinding of the film belt and real-time tensioning of multiple sets of adjusting rollers, to achieve fully automated continuous film coating operations for automotive interior parts. The feeding, coating, and unloading processes are carried out in parallel without manual intervention, significantly shortening the production cycle, reducing labor intensity, and completely changing the situation of low efficiency and unstable quality of traditional manual film coating. It can meet the strict requirements of modern mass production for high cycle time and high consistency, and significantly improve overall production capacity.

[0015] 2. During the lamination process of this invention, the second and first adjusting roller frames move sequentially to tilt the film strip to one end of the interior trim and then cover its highest point, ensuring accurate initial positioning. After cutting, the lamination roller rotates and sprays high-pressure gas to gradually blow the film from the center outwards. The film has no edge clamping constraints and can fully extend according to the shape, perfectly fitting deep and complex depressions and undulations. At the same time, the high-pressure airflow discharges air under the film, eliminating defects such as bubbles and wrinkles. The lamination has high flatness and excellent protective effect, breaking through the limitations of existing technologies in adaptability to complex surface lamination.

[0016] 3. The entire lamination process of this invention avoids contact between the cutting tool and the surface of the interior parts: the cutting mechanism is supported under the film by a cutting frame, and the cutting blade completes the cutting above the film, eliminating the risk of scratching the finished product; the high-pressure gas blowing lamination is a non-contact pressing method, without mechanical scratching, and the automated operation eliminates the occupational injury hazards caused by manual knife lamination, greatly improving safety. At the same time, the free coverage of the film means that the edge sealing is no longer restricted by the clamping point, effectively avoiding the sealing failure problem caused by negative pressure peeling, significantly improving the lamination yield, and reducing material waste and rework costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the installation on the upper part of the workbench of the present invention.

[0019] Figure 3 This is a schematic diagram of the installation of the cam divider and the first electric cylinder of the present invention.

[0020] Figure 4 This is a schematic diagram of the installation of the support bearing of the present invention.

[0021] Figure 5 This is a schematic diagram of the material carrier structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the connection component structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the coating mechanism of the present invention.

[0024] Figure 8 This is a schematic diagram of the installation of the connector and transmission box of the present invention.

[0025] Figure 9 This is a schematic diagram of the coating roller structure of the present invention.

[0026] Figure 10 This is a schematic diagram of the installation of the first ball screw linear module and the second ball screw linear module of the present invention.

[0027] Figure 11 This is a schematic diagram of the installation of the cutting blade holder and cutting frame of the present invention.

[0028] Figure 12 This is a schematic diagram of the cutting blade holder and cutting frame structure of the present invention.

[0029] Figure reference numerals: 11 Workbench, 12 Base box, 13 Upper mounting frame, 14 Protective cover, 15 Material turntable, 16 Fixed shaft, 17 Cam divider, 18 Material carrier, 19 Sliding rod, 20 Return spring, 21 Control component, 22 First electric cylinder, 23 Feed roller, 24 Take-up roller, 25 Film belt, 26 First support frame, 27 Extension plate, 28 Snap-fit ​​seat, 29 Second support frame, 30 First motor, 31 Fixed roller frame, 32 First adjusting roller frame, 33 Second electric cylinder 34 Second adjusting roller frame, 35 Third electric cylinder, 36 Third adjusting roller frame, 37 Fourth electric cylinder, 38 Coating roller, 39 Sealing mounting box, 40 Fifth electric cylinder, 41 Connecting head, 42 Air pipe, 43 Transmission box, 44 Second electric motor, 45 Cutting blade holder, 46 Reinforcing rod, 47 Sixth electric cylinder, 48 First ball screw linear module, 49 Connecting column, 50 Cutting frame, 51 Seventh electric cylinder, 52 Second ball screw linear module, 53 Connecting rod, 54 Support bearing. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] In one embodiment, such as Figures 1-12As shown, an automotive interior trim coating device includes a worktable 11 mounted on the upper end of a base box 12. An upper mounting frame 13 is fixedly mounted on the upper end of the worktable 11. A material carrier turntable 15 is positioned at the center of the upper part of the worktable 11. The material carrier turntable 15 has several positioning slots arranged in an array, each containing a material carrier 18. A feeding roller 23 and a take-up roller 24 are mounted inside the upper mounting frame 13. A film strip 25 is positioned between the feeding roller 23 and the take-up roller 24. Both the feeding roller 23 and the take-up roller 24 are mounted inside the upper end of the upper mounting frame 13 via a connecting assembly. A coating component for coating automotive interior trim is positioned between the feeding roller 23 and the take-up roller 24. The coating component consists of a traction mechanism, a cutting mechanism, and a pasting mechanism. The traction mechanism includes a fixed roller. The frame 31 has a fixed roller frame 31 on one side of the feeding roller 23 and the winding roller 24. The upper end of the fixed roller frame 31 is symmetrically provided with a third support frame. The third support frame is fixedly installed on the upper inner side of the upper mounting frame 13. A first adjusting roller frame 32 and a second adjusting roller frame 34 are provided between the two fixed roller frames 31. The first adjusting roller frame 32 and the second adjusting roller frame 34 are symmetrically arranged above a material carrier 18. A third adjusting roller frame 36 is provided between the second adjusting roller frame 34 and the fixed roller frame 31. The inner sides of the fixed roller frame 31, the first adjusting roller frame 32, the second adjusting roller frame 34 and the third adjusting roller frame 36 are rotatably provided with a first limiting roller and a second limiting roller. The film strip 25 can be shaped and cut by the cutting mechanism. The covering mechanism makes the cut film tightly attached to the upper surface of the automotive interior parts. A fixed shaft 16 is fixedly mounted on the bottom end of the material-carrying turntable 15. A first bearing is mounted on the fixed shaft 16 and installed in the mounting groove at the upper end of the base box 12. The end of the fixed shaft 16 is connected to the output end of the cam divider 17. The cam divider 17 is installed inside the base box 12. A support bearing 54 is mounted on the bottom end of the material-carrying turntable 15. A fixed ring is fixedly mounted on the inner ring of the support bearing 54. Several support rods are arrayed at the bottom end of the fixed ring. The support rods are fixedly mounted on the upper end of the workbench 11. A protective cover 14 is mounted on the outside of the upper mounting bracket 13. The cam divider 17 is electrically connected to the control component 21. Component 21 is installed on one side of the protective cover 14. When it is needed to coat the end face of the automotive interior parts, the automotive interior parts are placed in the upper placement groove of the material carrier 18 at the feeding station near the take-up roller 24. The upper placement groove of the material carrier 18 matches the bottom end of the automotive interior parts. Then, the control component 21 moves intermittently through the cam divider 17. The output end of the cam divider 17 drives the material turntable 15 to rotate 90 degrees intermittently through the fixed shaft 16. After the material turntable 15 drives the automotive interior parts to rotate to the position near the unloading roller 23, the cam divider 17 is in a stationary stage, and the coating component can coat the automotive interior parts.

[0032] The material carrier 18 is equipped with a sliding rod 19 at its bottom end. The sliding rod 19 is slidably disposed in the sliding hole in the middle of the positioning groove at the upper end of the material turntable 15. Each end of the sliding rod 19 is fixedly provided with a plug-in seat. The upper end of the plug-in seat and the bottom end of the material turntable 15 are both provided with a return spring 20. A first electric cylinder 22 is installed inside the bottom box 12 and below the covering mechanism. The end of the first electric cylinder 22 is provided with a plug-in connector that mates with the plug-in seat. The first electric cylinder 22 is electrically connected to the control component 21. The material carrier 18 is symmetrically provided with material picking slots at its upper end. In use, the material turntable 15 rotates 180 degrees to rotate the automotive interior parts to the first electric cylinder. After the extension end of the moving cylinder 22, the control unit 21 controls the first electric cylinder 22 to start. The extension end of the first electric cylinder 22 drives the connector to be inserted into the connector seat, and then pushes the material carrier 18 to rise through the sliding rod 19. The material carrier 18 drives the automotive interior parts to rise, so that the automotive interior parts are coated. After the coating is completed, the extension end of the first electric cylinder 22 retracts. After the material turntable 15 rotates intermittently twice, the automotive interior parts are rotated to the loading station, so that the coated automotive interior parts can be taken out through the material picking slot. Then the automotive interior parts to be coated are placed inside the material carrier 18, and then the automotive interior parts are continuously coated.

[0033] The connecting assembly includes a first support frame 26, two of which are symmetrically arranged inside the upper mounting frame 13. Each end of the first support frame 26 has a limiting groove, which is inclined. Extension plates 27 are fixedly mounted at both ends of the feeding roller 23 and the winding roller 24. Each end of the extension plate 27 is fitted with a locking seat 28, and a fixed shaft is fixedly mounted at one end of each locking seat 28. A second bearing is mounted on each fixed shaft, and the second bearing is mounted at the end of a second support frame 29, which is installed inside the upper mounting frame 13. One of the fixed shafts is connected to the output end of a first motor 30, which is mounted on one side of a second support frame 29. The first motors 30 are all electrically connected to the control unit 21. In use, when continuously conveying the film belt 25, the unloading roller 23 with the film belt 25 wound on it is installed between two first support frames 26 at opposite positions of the loading station, and the take-up roller 24 is installed between two other first support frames 26. The shaft ends of the unloading roller 23 and the take-up roller 24 are placed in the limiting groove, thereby completing the rapid positioning of the unloading roller 23 and the take-up roller 24. At the same time, the extension plate 27 is snapped into the inside of the snap-fit ​​seat 28. Then, the end of the film belt 25 is passed through the film covering components and the end of the film belt 25 is fixed on the take-up roller 24. Then, the control unit 21 controls the first motors 30 of the unloading roller 23 and the take-up roller 24 respectively, thereby continuously conveying the film belt 25.

[0034] The first adjusting roller frame 32 is installed at the telescopic end of the second electric cylinder 33, the second adjusting roller frame 34 is installed at the telescopic end of the third electric cylinder 35, and the third adjusting roller frame 36 is installed at the telescopic end of the fourth electric cylinder 37. The second electric cylinder 33, the third electric cylinder 35, and the fourth electric cylinder 37 are all installed inside the upper end of the upper mounting frame 13. The second electric cylinder 33, the third electric cylinder 35, and the fourth electric cylinder 37 are all electrically connected to the control component 21. The first limiting roller has limiting ring grooves at both ends, and the second limiting roller has limiting rings fixed at the corresponding limiting ring grooves at both ends. In use, when conveying the film belt 25, the ends of the film belt 25 pass sequentially between the fixed roller frame 31, the first adjusting roller frame 32, the second adjusting roller frame 34, the third adjusting roller frame 36, and the first and second limiting rollers inside the fixed roller frame 31. At the same time, the ends of the film belt 25 are fixed inside the limiting ring grooves under the action of the limiting rings, thereby correcting and limiting the film belt 25.

[0035] The cutting mechanism includes a cutting blade holder 45 and a cutting frame 50. The two cutting blade holders 45 and the two cutting frames 50 are symmetrically arranged. The cutting blade holder 45 is positioned above the cutting frame 50. The cutting frame 50 is installed below and between the first adjusting roller frame 32 and the second adjusting roller frame 34. The two cutting blade holders 45 are respectively mounted on the extension ends of two sixth electric cylinders 47. The sixth electric cylinders 47 are mounted on the moving ends of first ball screw linear modules 48. The first ball screw linear modules 48 are both mounted on the upper end of the worktable 11. The two first ball screw linear modules 48 are arranged in a circular array. The two cutting frames 50 are respectively mounted on the extension ends of two seventh electric cylinders 51. Cylinder 51 is installed on the moving end of the second ball screw linear module 52. Both second ball screw linear modules 52 are installed on the upper end of the worktable 11. The two second ball screw linear modules 52 are arranged in a circular array. During use, when applying film to automotive interior parts, the control unit 21 first controls the third electric cylinder 35 and the fourth electric cylinder 37 to start. The second adjusting roller frame 34 drives the film belt 25 downwards. The extension end of the fourth electric cylinder 37, through the third adjusting roller frame 36, constantly controls the tension of the waste film, ensuring that the film belt 25 between the first adjusting roller frame 32 and the second adjusting roller frame 34 is always taut. The extension end of the third electric cylinder 35 extends a fixed distance, making the film belt 25 tightly adhere to one end of the upper surface of the automotive interior part. At this time, the second adjusting roller frame 36... The film belt 25 is inclined between the roller frame 34 and the first adjusting roller frame 32. Then, the control unit 21 controls the second electric cylinder 33 to start. The extension end of the second electric cylinder 33 drives the film belt 25 to descend through the first adjusting roller frame 32. At the same time, the control unit 21 controls the first motor 30 at the end of the feeding roller 23 to start, so that the film belt 25 is kept taut. After the bottom end of the film belt 25 is in close contact with the highest point of the upper surface of the automotive interior part, the control unit 21 controls the sixth electric cylinder 47 and the seventh electric cylinder 51 to start. The sixth electric cylinder 47 and the seventh electric cylinder 51 drive the cutting blade holder 45 and the cutting frame 50 to move respectively. The two cutting blade holders 45 and the cutting frame 50 are assembled respectively. The control unit 21 controls the first ball screw linear module 48 and the second roller. When the ball screw linear module 52 is activated, the moving ends of the first ball screw linear module 48 and the second ball screw linear module 52 respectively drive the cutting blade holder 45 and the cutting frame 50 to move vertically, so that the cutting frame 50 is in close contact with the bottom end of the film strip 25. Then the cutting blade holder 45 cuts the film strip 25, with the outer side of the cutting blade holder 45 in close contact with the inner side of the cutting frame 50. After the cutting is completed, the cutting blade holder 45 separates from the cutting frame 50. The sixth electric cylinder 47 and the seventh electric cylinder 51 respectively drive the cutting blade holder 45 and the cutting frame 50 to move to the initial position. Then the extension ends of the second electric cylinder 33, the third electric cylinder 35, the fourth electric cylinder 37 and the fifth electric cylinder 40 are reset. Then the take-up roller 24 takes up the waste strip.

[0036] A reinforcing rod 46 is fixedly provided between both ends of the cutting blade holder 45. A connecting post 49 is fixedly provided at one end of each reinforcing rod 46. The two connecting posts 49 are arranged in a circumferential array. A first positioning hole is provided at the other end of each reinforcing rod 46. A connecting rod 53 is fixedly provided at one end of each cutting frame 50. The two connecting rods 53 are arranged in a circumferential array. A second positioning hole is provided at the other end of each cutting frame 50. In use, when the two cutting blade holders 45 are docked, the connecting post 49 is inserted into the corresponding first positioning hole, thereby completing the assembly of the two cutting blade holders 45. The two reinforcing rods 46 and the connecting post 49 can increase the strength of the cutting blade holders 45. At the same time, when the two cutting frames 50 are docked, the two connecting rods 53 are inserted into the corresponding second positioning holes, thereby completing the assembly of the cutting frames 50, which increases the strength of the cutting frames 50.

[0037] The coating mechanism includes coating rollers 38, two of which are symmetrically arranged. The coating rollers 38 are installed between a first adjusting roller frame 32 and a second adjusting roller frame 34. Each coating roller 38 is rotatably mounted inside a sealed mounting box 39. Several high-pressure nozzles are arrayed on each coating roller 38. The ends of the high-pressure nozzles are dynamically sealed to the interior of the sealed mounting box 39. Notches are provided at the bottom of the sealed mounting box 39 where the coating rollers 38 are located. The ends of each coating roller 38 are rotatably connected to a connecting head 41. Air inlets are provided at the ends of each coating roller 38. The coating roller 38 communicates with the interior of the connecting head 41, which is connected to an external air supply component via an air pipe 42. The other ends of each coating roller 38 are fixedly connected to the output end of a transmission box 43, which is installed inside a fixed box at the end of the sealed mounting box 39. The input end of the transmission box 43 is fixedly connected to the output end of a second motor 44. The motor 44 is fixedly mounted on one side of the fixed box. The sealed mounting box 39 is fixedly connected to the telescopic end of the fifth electric cylinder 40. The fifth electric cylinder 40 is installed inside the upper end of the upper mounting bracket 13. The fifth electric cylinder 40 and the second motor 44 are electrically connected to the control component 21. In use, after the cutting blade holder 45 finishes cutting, the cutting blade holder 45 first resets. Then, the control component 21 controls the fifth electric cylinder 40 to start. The telescopic end of the fifth electric cylinder 40 drives the sealed mounting box 39 to descend. The output end of the second motor 44 drives the two film-coating rollers 38 to rotate through the transmission box 43. The two film-coating rollers 38 rotate synchronously and in opposite directions. At the same time, the external air supply component delivers high-pressure gas into the connecting head 41 through the air pipe 42. Then, the gas enters the interior of the film-coating roller 38. When the high-pressure nozzle on the film-coating roller 38 rotates to the bottom of the sealed mounting box 39, the high-pressure nozzle discharges the gas. As the film-coating roller 38 continues to rotate, the film is then covered on the upper surface of the automotive interior parts.

[0038] The above embodiment discloses an automotive interior parts coating device. When it is necessary to coat the end face of the automotive interior parts, the automotive interior parts are placed in the upper placement groove of the material carrier 18 at the loading station near the take-up roller 24. After the material turntable 15 rotates 180 degrees so that the automotive interior parts rotate to the extension end of the first electric cylinder 22, the control component 21 controls the first electric cylinder 22 to start. The extension end of the first electric cylinder 22 drives the connector to be inserted into the connector seat, and then pushes the material carrier 18 to rise through the sliding rod 19. The material carrier 18 drives the automotive interior parts to rise. First, control unit 21 starts the third electric cylinder 35 and the fourth electric cylinder 37. The second adjusting roller frame 34 drives the film belt 25 to move downward. The extension end of the fourth electric cylinder 37 controls the tension of the waste belt through the third adjusting roller frame 36, so that the film belt 25 between the first adjusting roller frame 32 and the second adjusting roller frame 34 is always taut. The extension end of the third electric cylinder 35 extends a fixed distance, so that the film belt 25 is in close contact with one end of the upper surface of the automotive interior part. At this time, the film belt 25 between the second adjusting roller frame 34 and the first adjusting roller frame 32 is inclined. Then, control unit 21 starts the second electric cylinder 33. The extension end of the second electric cylinder 33 drives the film belt 25 to descend through the first adjusting roller frame 32. At the same time, control unit 21 controls the first motor at the end of the feed roller 23. 30 is started, ensuring the film belt 25 is taut. After the bottom end of the film belt 25 is in close contact with the highest point of the upper surface of the automotive interior part, the control unit 21 controls the sixth electric cylinder 47 and the seventh electric cylinder 51 to start. The sixth electric cylinder 47 and the seventh electric cylinder 51 respectively drive the cutting blade holder 45 and the cutting frame 50 to move. The two cutting blade holders 45 and the cutting frame 50 are assembled respectively. The control unit 21 controls the first ball screw linear module 48 and the second ball screw linear module 52 to start. The moving ends of the first ball screw linear module 48 and the second ball screw linear module 52 respectively drive the cutting blade holder 45 and the cutting frame 50 to move vertically, so that the cutting frame 50 is in close contact with the bottom end of the film belt 25. Then the cutting blade holder 45 cuts the film belt 25. The cutting blade holder 45 is reset, and then the control unit 21 controls the fifth electric cylinder 40 to start. The extension end of the fifth electric cylinder 40 drives the sealing mounting box 39 to descend. The output end of the second motor 44 drives the two coating rollers 38 to rotate through the transmission box 43. The two coating rollers 38 rotate synchronously and in opposite directions. At the same time, the external air supply component delivers high-pressure gas into the connecting head 41 through the air pipe 42. Then the gas enters the interior of the coating roller 38. When the high-pressure nozzle on the coating roller 38 rotates to the bottom of the sealing mounting box 39, the high-pressure nozzle discharges the gas. As the coating roller 38 continues to rotate, the film is covered on the upper surface of the automotive interior parts. Then the extension ends of the second electric cylinder 33, the third electric cylinder 35, the fourth electric cylinder 37 and the fifth electric cylinder 40 are reset, and then the take-up roller 24 takes up the waste tape.

[0039] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A coating device for automotive interior parts, comprising a worktable (11), the worktable (11) being mounted on the upper end of a base box (12), an upper mounting bracket (13) being fixedly provided on the upper end of the worktable (11), and a material-carrying turntable (15) being provided at the center of the upper part of the worktable (11), the material-carrying turntable (15) being provided with a plurality of positioning grooves arranged in an array, characterized in that, Material carriers (18) are provided in the positioning slots. A feeding roller (23) and a take-up roller (24) are provided inside the upper mounting frame (13). A film strip (25) is provided between the feeding roller (23) and the take-up roller (24). The feeding roller (23) and the take-up roller (24) are both installed inside the upper end of the upper mounting frame (13) via connecting components. A film-coating component for coating automotive interior parts is provided between the feeding roller (23) and the take-up roller (24). The film-coating component consists of a traction mechanism, a cutting mechanism, and a pasting mechanism. The traction mechanism includes a fixed roller frame (31). A fixed roller frame (31) is provided on one side of both the feeding roller (23) and the take-up roller (24). The fixed roller frame (31) is symmetrically provided with a third support frame at its upper end. The third support frame is fixedly provided on the upper inner side of the upper mounting frame (13). A first adjusting roller frame (32) and a second adjusting roller frame (34) are provided between the two fixed roller frames (31). The first adjusting roller frame (32) and the second adjusting roller frame (34) are symmetrically provided above a material carrier (18). A third adjusting roller frame (36) is provided between the second adjusting roller frame (34) and the fixed roller frame (31). A first limiting roller and a second limiting roller are rotatably provided on the inner side of the fixed roller frame (31), the first adjusting roller frame (32), the second adjusting roller frame (34) and the third adjusting roller frame (36). The coating mechanism includes a coating roller (38), with two coating rollers (38) arranged symmetrically. The coating rollers (38) are installed between a first adjusting roller frame (32) and a second adjusting roller frame (34). Each coating roller (38) is rotatably mounted inside a sealed mounting box (39). Several high-pressure nozzles are arrayed on the coating rollers (38). The ends of the high-pressure nozzles are dynamically sealed to the inside of the sealed mounting box (39). The bottom of the sealed mounting box (39) and the position of the coating roller (38) are both provided with notches. The ends of the coating rollers (38) are rotatably connected to a connecting head (41). The ends of the coating rollers (38) are provided with air inlets. The coating rollers (38) are internally connected to the connecting head (41). The connecting head (41) is connected to the inside of the connecting head (41). The air pipe (42) is connected to the external air supply component. The other end of the film coating roller (38) is fixedly connected to the output end of the transmission box (43). The transmission box (43) is installed inside the fixed box. The fixed box is fixedly installed at the end of the sealed mounting box (39). The input end of the transmission box (43) is fixedly connected to the output end of the second motor (44). The second motor (44) is fixedly installed on one side of the fixed box. The sealed mounting box (39) is fixedly connected to the telescopic end of the fifth electric cylinder (40). The fifth electric cylinder (40) is installed inside the upper end of the upper mounting frame (13). The fifth electric cylinder (40) and the second motor (44) are electrically connected to the control component (21). The control component (21) is installed on one side of the protective cover (14).

2. The automotive interior parts coating device according to claim 1, characterized in that, The bottom end of the material-carrying turntable (15) is fixedly provided with a fixed shaft (16), and a first bearing is installed on the fixed shaft (16). The first bearing is installed in the mounting groove at the upper end of the base box (12). The end of the fixed shaft (16) is connected to the output end of the cam divider (17). The cam divider (17) is installed inside the base box (12). The bottom end of the material-carrying turntable (15) is provided with a support bearing (54). The inner ring of the support bearing (54) is fixedly provided with a fixed ring. The bottom end of the fixed ring is provided with a number of support rods. The support rods are fixedly provided on the upper end of the workbench (11). A protective cover (14) is installed on the outside of the upper mounting frame (13). The cam divider (17) is electrically connected to the control component (21).

3. The automotive interior trim coating device according to claim 2, characterized in that, The material carrier (18) is equipped with a sliding rod (19) at the bottom. The sliding rod (19) is slidably disposed in the sliding hole in the middle of the positioning groove at the upper end of the material turntable (15). The ends of the sliding rod (19) are all fixedly provided with plug-in seats. The upper end of the plug-in seat and the bottom end of the material turntable (15) are both provided with a return spring (20). The bottom box (12) and the area below the covering mechanism are both equipped with a first electric cylinder (22). The end of the first electric cylinder (22) is provided with a plug-in connector that cooperates with the plug-in seat. The first electric cylinder (22) is electrically connected to the control component (21). The material carrier (18) is symmetrically provided with material picking slots at the upper end.

4. The automotive interior trim coating device according to claim 2, characterized in that, The connecting assembly includes a first support frame (26), two first support frames (26) are symmetrically arranged inside the upper end of the upper mounting frame (13), each of the ends of the first support frame (26) is provided with a limiting groove, the limiting groove is inclined, both ends of the feeding roller (23) and the winding roller (24) are fixedly provided with extension plates (27), the ends of the extension plates (27) are snapped together with snap-fit ​​seats (28), one end of each snap-fit ​​seat (28) is fixedly provided with a fixed shaft, each fixed shaft is installed with a second bearing, the second bearing is installed at the end of the second support frame (29), the second support frame (29) is installed inside the upper end of the upper mounting frame (13), one of the fixed shafts is connected to the output end of the first motor (30), the first motor (30) is installed on one side of one of the second support frames (29), and the first motor (30) is electrically connected to the control component (21).

5. The automotive interior trim coating device according to claim 2, characterized in that, The first adjusting roller frame (32) is installed at the telescopic end of the second electric cylinder (33), the second adjusting roller frame (34) is installed at the telescopic end of the third electric cylinder (35), and the third adjusting roller frame (36) is installed at the telescopic end of the fourth electric cylinder (37). The second electric cylinder (33), the third electric cylinder (35), and the fourth electric cylinder (37) are all installed inside the upper end of the upper mounting frame (13). The second electric cylinder (33), the third electric cylinder (35), and the fourth electric cylinder (37) are all electrically connected to the control component (21). The first limiting roller is provided with limiting ring grooves at both ends, and the second limiting roller is fixedly provided with limiting rings at the corresponding limiting ring grooves at both ends.

6. The automotive interior trim coating device according to claim 5, characterized in that, The cutting mechanism includes a cutting blade holder (45) and a cutting frame (50). The two cutting blade holders (45) and the cutting frame (50) are symmetrically arranged. The cutting blade holder (45) is located above the cutting frame (50). The cutting frame (50) is installed below and between the first adjusting roller frame (32) and the second adjusting roller frame (34). The two cutting blade holders (45) are respectively installed at the extension ends of two sixth electric cylinders (47). The sixth electric cylinders (47) are installed on the first ball screw linear module (48) for movement. At the moving end, the first ball screw linear module (48) is installed on the upper end of the worktable (11), and the two first ball screw linear modules (48) are arranged in a circular array. The two cutting frames (50) are respectively installed on the extension end of the two seventh electric cylinders (51). The seventh electric cylinder (51) is installed on the moving end of the second ball screw linear module (52). The second ball screw linear module (52) is installed on the upper end of the worktable (11), and the two second ball screw linear modules (52) are arranged in a circular array.

7. The automotive interior trim coating device according to claim 6, characterized in that, A reinforcing rod (46) is fixed between both ends of the cutting blade holder (45). A connecting post (49) is fixed at one end of each reinforcing rod (46). The two connecting posts (49) are arranged in a circular array. A first positioning hole is provided at the other end of each reinforcing rod (46). A connecting rod (53) is fixed at one end of each cutting frame (50). The two connecting rods (53) are arranged in a circular array. A second positioning hole is provided at the other end of each cutting frame (50).

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