Automobile interior fabric composite laminating device

Abstract

This invention relates to the field of fabric composite processing machinery technology, specifically an automotive interior fabric composite bonding device. A fixed frame is fixed to a base and positioned between a fabric unwinding assembly and a pressing assembly. A support roller is fixedly installed inside the fixed frame, and a movable roller is installed on the upper side of the support roller. Two fixed blocks are symmetrically fixed to the base and positioned between the pressing assembly and the winding assembly. A support platform is fixed between the two fixed blocks, and a heating frame with heat dissipation holes at the bottom is installed on the upper side of the support platform. A hot air blower is installed on the upper side of the heating frame, with the blower's air outlet passing through the top plate of the heating frame and positioned inside the heating frame. This device enables multi-level stable pressing of the fabric and substrate, precise tension control, and adaptive thickness adjustment, effectively solving problems such as misalignment, wrinkling, weak bonding, easy rebound and cracking, and poor versatility in traditional equipment. It improves the bonding quality, surface smoothness, and service life of the composite fabric.

Description

Technical Field

[0001] This invention relates to the field of fabric composite processing machinery technology, specifically to a composite bonding device for automotive interior fabrics. Background Technology

[0002] As the automotive industry rapidly develops towards high-end, comfortable, and environmentally friendly directions, the quality requirements for automotive interiors are constantly increasing. Interior fabrics, as core components directly affecting the driving experience and aesthetics of the interior, are crucially important in terms of their lamination quality. Automotive interior fabric lamination devices are key equipment for achieving precise lamination between fabrics and substrates, widely used in the production of interior components such as seats, door panels, sun visors, and headliners. Their performance directly determines the lamination strength, surface smoothness, and service life of the interior fabrics. Currently, most automotive interior fabric lamination devices on the market employ traditional flame lamination processes, such as a flame lamination machine with patent publication number CN217671627U, which discloses "a fabric roller connected between two first support rods via a first connecting rod, and a..." The system includes an extrusion mechanism, a cleaning mechanism between the two third support rods, a collection mechanism between the two fourth support rods, a driving mechanism on one of the fourth support rods, a first connecting rod rotatably connected to the first support rod, a first connecting rod fixedly connected to the fabric roller, and an extrusion mechanism comprising two second connecting rods rotatably connected to the inner wall of the second support rod. Each of the two second connecting rods is fixedly connected to an extrusion wheel, and a connecting pipe is provided between the two second connecting rods. Multiple flame-spraying pipes are provided on the connecting pipe. While it meets basic bonding requirements, the composite bonding strength is insufficient. Furthermore, the use of a single pressing structure results in uneven pressure distribution on the pressure rollers and poor adaptability to fabrics and substrates with different coefficients of thermal expansion, leading to problems such as loose bonding, localized edge curling, and weld cracking during the lamination process. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a simple, rationally designed, and easy-to-use automotive interior fabric composite bonding device. This device enables multi-level stable pressing of the fabric and substrate, precise tension control, and adaptive thickness adjustment, effectively solving problems such as misalignment, wrinkling, weak bonding, easy rebound and cracking, and poor versatility of traditional equipment. It also improves the bonding quality, surface smoothness, and service life of composite fabrics.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a base, and a fabric unwinding assembly, a pressing assembly, and a winding assembly are arranged sequentially from left to right on the upper side of the base;

[0005] The fixed frame is an inverted "U" shaped structure. The fixed frame is fixed to the base and is located between the fabric unwinding assembly and the pressing assembly. A support roller is fixedly installed inside the fixed frame, and a movable roller is installed on the upper side of the support roller.

[0006] An active component is disposed on the upper side of the active roller;

[0007] The fixing blocks are two in number, which are symmetrically fixed to the base and are located between the pressing assembly and the winding assembly.

[0008] The support platform is fixed between two front and rear fixed blocks. A heating frame with heat dissipation holes at the bottom is provided on the upper side of the support platform. A hot air blower is provided on the upper side of the heating frame. The blowing end of the hot air blower passes through the top plate of the heating frame and is located inside the heating frame. Movable protrusions are fixed symmetrically on both the front and rear sides of the heating frame. The movable protrusions are slidably connected to the movable grooves opened in the inner wall of the fixed blocks.

[0009] The adjustment components are two in number, each disposed on the upper side of the fixed block;

[0010] Through the above technical solution design, the fabric and substrate are pulled through the pre-compression space formed between the movable roller and the support roller, and after being pressed by the pressing assembly, they pass through the shaping pressing space formed between the heating frame and the support table, and are collected by the collecting roller in the winding assembly.

[0011] As a further improvement of the present invention, the active component includes:

[0012] The movable frame is an inverted "U" shaped structure. The movable frame covers the upper side of the fixed frame, and a lifting cylinder is fixed on the upper side of the fixed frame. The pushing end of the lifting cylinder is connected to the inner top surface of the movable frame.

[0013] The movable blocks are two in number, which are slidably inserted into the movable slots opened in the vertical ends of the front and rear sides of the fixed frame, and the front and rear ends of the movable roller are respectively connected to the corresponding movable blocks.

[0014] Two connecting strips are fixed to the outer wall of the movable block, and the connecting strips are connected to the inner wall of the vertical end of the movable frame.

[0015] The above technical solution design activates the lifting cylinder, which moves the movable frame, and the connecting strip moves the movable roller.

[0016] As a further improvement of the present invention, the adjustment component includes:

[0017] The support frame is an inverted "U" shaped structure and is fixed to the upper side of the fixing block.

[0018] An adjusting motor is fixed to the upper side of the support frame via a motor bracket; an adjusting gear is provided after the output shaft of the adjusting motor passes through the horizontal end of the support frame.

[0019] The transmission gear consists of two gears, which are respectively meshed on the left and right sides of the adjusting gear. A transmission shaft is inserted and fixed inside the transmission gear. The transmission shaft rotates through the top plate of the movable groove via a bearing and is provided with a threaded rod. The threaded rod is connected to the movable protrusion via a threaded connection.

[0020] The above technical solution design starts the adjusting motor, causing the adjusting gear to rotate and mesh with the transmission gears on the left and right sides to rotate, driving the threaded rod to rotate, which in turn drives the movable protrusion, which in turn moves the heating frame.

[0021] As a further improvement of the present invention, a support roller is provided on the left side of the support platform. The front and rear sides of the support roller are connected to the support platform through support brackets, and the upper surface of the support roller is flush with the upper surface of the support platform; thus, the pressing material entering the support platform is supported and guided.

[0022] As a further improvement of the present invention, a connecting seat is fixed on the lower right side of the support platform, a connecting platform is inserted into the right side of the connecting seat, a "U"-shaped bracket is fixed on the right side of the connecting platform, a back support roller is provided inside the bracket, and the back support roller is located on the right side of the support platform; a guide seat is fixed on the front side of the connecting seat, a guide block is slidably inserted inside the guide seat, and the rear side of the guide block passes through the front side wall of the connecting seat and is inserted into the connecting platform; a drive motor is fixed on the front side of the guide seat, and the output shaft of the drive motor passes through the front side wall of the guide seat and is connected to a screw, and the screw is rotatably connected to the guide block by a thread;

[0023] Through the above technical solution design, a back support roller is added to the right side of the support platform. The back support roller is supported by the insertion and cooperation of the guide block and the connecting platform, thereby guiding the pressed material after secondary pressing.

[0024] As a further improvement of the present invention, a positioning groove is provided in the left side wall of the connecting seat, and a positioning strip is fixed on the left side of the connecting platform, the positioning strip being inserted into the positioning groove; thus guiding the installation of the connecting platform.

[0025] As a further improvement of the present invention, a pressing roller is provided on the left side of the support roller, and a tension roller is provided on the left side of the movable roller, with the tension roller positioned directly above the pressing roller; movable bosses are provided at both the front and rear ends of the tension roller and the pressing roller, and the movable bosses are respectively slidably inserted into movable grooves opened in the vertical ends of the front and rear sides of the fixed frame; the upper and lower movable bosses in the same movable groove are connected by a bidirectional screw thread, and a rotating shaft is provided at the upper end of the bidirectional screw. After the rotating shaft passes through the fixed frame through a bearing, it is positioned on the upper side of the fixed frame, and the front and rear rotating shafts are connected by a worm gear transmission group.

[0026] The above technical solution design uses a worm gear transmission assembly to make the front and rear rotating shafts rotate synchronously, which drives the bidirectional lead screw to rotate simultaneously, thereby driving the moving boss, adjusting the distance between the tension roller and the pressing roller, and adjusting the tension of the fabric and the substrate during the transmission process.

[0027] As a further improvement of the present invention, a limiting platform is provided on the outer side of the movable boss, and the limiting platform is in contact with the outer side of the vertical end of the fixed frame to guide the movement of the movable boss.

[0028] As a further improvement of the present invention, a frame is fixed on the upper side of the fixed frame, and the worm gear transmission assembly is disposed inside the frame, and a frame cover is provided on the upper side of the frame to protect the worm gear transmission assembly.

[0029] When using this invention: First, the interior fabric and substrate to be laminated are respectively installed on the corresponding structures of the fabric unwinding assembly to complete the preparation work; after starting the device, the unwinding assembly synchronously releases the fabric and substrate, conveying them to the fixed frame area. Inside the fixed frame, the worm gear transmission group is activated, driving the rotating shaft and bidirectional lead screw to rotate synchronously, adjusting the distance between the tension roller and the pressure roller, precisely controlling the tension of the fabric and substrate, avoiding slack and wrinkles, and ensuring bonding accuracy; after tensioning, the fabric and substrate enter the pre-pressing space of the support roller and the movable roller, and the lifting cylinder of the movable assembly is activated to push the movable frame, connecting strip and movable block to move, so that the movable roller is close to the support roller, applying uniform pre-pressure to initially bond and align the two, preventing misalignment and wrinkles during the main pressing; after pre-pressing, the fabric and substrate enter the pressing assembly, and the laminated composite material is conveyed to the shaping and pressing space of the support table and the heating frame; the adjusting assembly adjusts the motor, driving the adjusting gear, transmission gear, The drive shaft and threaded rod rotate, adjusting the distance between the heating frame and the support platform via movable protrusions to accommodate composite materials of different thicknesses. Simultaneously, the hot air blower starts, blowing hot air through the heat dissipation holes of the heating frame onto the composite material. Combined with constant pressure, secondary pressing and shaping enhances the bonding strength and prevents springback and cracking after cooling. During the shaping process, the left support roller of the support platform supports and guides the composite material to prevent deviation. The right back support roller is fixed by a bracket and connecting platform, precisely installed using positioning strips and positioning grooves. The drive motor drives the screw and guide block to move, adjusting the position of the connecting platform to adapt to the conveying requirements. Finally, the shaped composite fabric is synchronously wound up by the winding assembly's collecting roller, completing the entire composite bonding process and achieving efficient and high-quality lamination.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] The device employs a three-stage linkage pressing mechanism consisting of pre-pressing, main pressing, and shaping pressing to achieve layered bonding control, effectively preventing misalignment and wrinkles between the fabric and substrate, enhancing bonding strength, preventing springback and weld cracking, and improving the surface smoothness and service life of the composite fabric. A tension adjustment structure with a worm gear drive unit driving a bidirectional lead screw allows for precise tension adjustment and guidance, ensuring bonding accuracy and stability. Simultaneously, by adjusting the motor-driven threaded rod and the back roller-driven connecting table, it flexibly adapts to composite materials of different thicknesses, significantly improving the device's versatility and practicality. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the present invention.

[0033] Figure 2 yes Figure 1 Enlarged view of part A.

[0034] Figure 3 yes Figure 1 A schematic diagram of the southeast isometric structure.

[0035] Figure 4 yes Figure 1 Front view.

[0036] Figure 5 This is a schematic diagram of the internal structure of the present invention.

[0037] Figure 6 yes Figure 5 Front view.

[0038] Figure 7 This is a schematic diagram of the fixed frame structure in this invention.

[0039] Figure 8 This is a schematic diagram of the internal structure of the fixed frame in this invention.

[0040] Figure 9 This is a schematic diagram of the connection structure of the connecting seat and the back roller in this invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Base; 1-1 Fabric unwinding assembly; 1-2 Pressing assembly; 1-3 Winding assembly; 2. Fixed frame; 2-1 Movable groove; 2-2 Moving groove; 3. Support roller; 4. Movable roller; 5. Movable assembly; 5-1 Movable frame; 5-2 Lifting cylinder; 5-3 Movable block; 5-4 Connecting strip; 6. Fixed block; 6-1 Movable groove; 7. Support platform; 8. Heating frame; 9. Hot air blower; 10. Movable protrusion; 11. Adjustment assembly; 11. Support frame 11-1 Adjusting motor 11-2, adjusting gear 11-3, transmission gear 11-4, threaded rod 11-5, support roller 12, connecting seat 13, connecting platform 14, bracket 15, back support roller 16, guide seat 17, guide block 18, drive motor 19, screw 20, positioning bar 21, pressure roller 22, tension roller 23, moving boss 24, bidirectional lead screw 25, worm gear transmission group 26, limiting platform 27, frame 28, frame cover 29. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Example 1:

[0045] Please see Figures 1-9 In this embodiment, it includes a base 1, and a fabric unwinding assembly 1-1, a pressing assembly 1-2, and a winding assembly 1-3 arranged sequentially from left to right on the upper side of the base 1;

[0046] The fixed frame 2 is an inverted "U" shaped structure. The fixed frame 2 is fixed on the base 1 and is located between the fabric unwinding assembly 1-1 and the pressing assembly 1-2. A support roller 3 is fixedly installed inside the fixed frame 2, and a movable roller 4 is installed on the upper side of the support roller 3.

[0047] The movable component 5 is disposed on the upper side of the movable roller 4;

[0048] Fixing block 6, there are two fixing blocks 6, which are symmetrically fixed to the base 1, and the fixing blocks 6 are disposed between the pressing assembly 1-2 and the winding assembly 1-3;

[0049] The support platform 7 is fixed between two front and rear fixed blocks 6. A heating frame 8 with heat dissipation holes at the bottom is provided on the upper side of the support platform 7. A hot air blower 9 is provided on the upper side of the heating frame 8. The blowing end of the hot air blower 9 passes through the top plate of the heating frame 8 and is located inside the heating frame 8. Movable protrusions 10 are fixed symmetrically on both the front and rear sides of the heating frame 8. The movable protrusions 10 are slidably connected to the movable grooves 6-1 opened in the inner wall of the fixed block 6.

[0050] Adjustment component 11, there are two adjustment components 11, which are respectively disposed on the upper side of the fixed block 6;

[0051] Through the above technical solution design, the fabric and substrate are pulled through the pre-compression space formed between the movable roller 4 and the support roller 3, and after being pressed by the pressing assembly 1-2, they pass through the shaping pressing space formed between the heating frame 8 and the support platform 7, and are collected by the collecting roller in the winding assembly 1-3.

[0052] Example 2:

[0053] Please see Figures 1-9 Based on Embodiment 1, the active component 5 is further improved and includes:

[0054] The movable frame 5-1 is an inverted "U" shaped structure. The movable frame 5-1 covers the upper side of the fixed frame 2, and a lifting cylinder 5-2 is fixed on the upper side of the fixed frame 2. The pushing end of the lifting cylinder 5-2 is connected to the inner top surface of the movable frame 5-1.

[0055] Two movable blocks 5-3 are slidably inserted into the movable slots 2-1 opened in the vertical ends of the front and rear sides of the fixed frame 2, and the front and rear ends of the movable roller 4 are respectively connected to the corresponding movable blocks 5-3.

[0056] Connecting strip 5-4, there are two connecting strips 5-4, which are respectively fixed on the outer wall of the movable block 5-3, and the connecting strip 5-4 is connected to the inner wall of the vertical end of the movable frame 5-1;

[0057] The above technical solution design activates the lifting cylinder 5-2, which moves the movable frame 5-1, and the movable roller 4 moves through the connecting strip 5-4.

[0058] Example 3:

[0059] Please see Figures 1-9 Based on Embodiment 1, the adjustment component 11 is further improved and includes:

[0060] The support frame 11-1 is an inverted "U" shaped structure and is fixed to the upper side of the fixing block 6.

[0061] The adjusting motor 11-2 is fixed to the upper side of the support frame 11-1 by a motor bracket; the specific model of the adjusting motor 11-2 is purchased directly from the market and installed according to the actual use requirements; after the output shaft of the adjusting motor 11-2 passes through the horizontal end of the support frame 11-1, an adjusting gear 11-3 is provided.

[0062] The transmission gear 11-4 consists of two gears, which are respectively meshed on the left and right sides of the adjusting gear 11-3. A transmission shaft is inserted and fixed inside the transmission gear 11-4. After the transmission shaft rotates through the top plate of the movable groove 6-1 via a bearing, a threaded rod 11-5 is provided. The threaded rod 11-5 is connected to the movable protrusion 10 by a threaded rotation.

[0063] Through the above technical solution design, the adjustment motor 11-2 is started, causing the adjustment gear 11-3 to rotate and mesh with the transmission gears 11-4 on the left and right sides to rotate, driving the threaded rod 11-5 to rotate, driving the movable protrusion 10, and the movable protrusion 10 drives the heating frame 8 to move.

[0064] Example 4:

[0065] Please see Figures 1-9Based on Embodiment 1, further improvements are made. A support roller 12 is provided on the left side of the support platform 7. The front and rear sides of the support roller 12 are connected to the support platform 7 via support brackets, and the upper surface of the support roller 12 is flush with the upper surface of the support platform 7. A connecting seat 13 is fixed to the lower right side of the support platform 7. A connecting platform 14 is inserted into the right side of the connecting seat 13. A positioning groove is formed in the left side wall of the connecting seat 13. A positioning strip 21 is fixed to the left side of the connecting platform 14 and inserted into the positioning groove. A U-shaped bracket 15 is fixed to the right side of the connecting platform 14. A back support roller 16 is provided, which is located on the right side of the support platform 7. A guide seat 17 is fixed to the front side of the connecting seat 13. A guide block 18 is slidably inserted inside the guide seat 17. The rear side of the guide block 18 passes through the front side wall of the connecting seat 13 and is inserted into the connecting platform 14. A drive motor 19 is fixed to the front side of the guide seat 17. The specific model of the drive motor 19 is purchased and installed directly from the market according to the actual use requirements. The output shaft of the drive motor 19 passes through the front side wall of the guide seat 17 and is connected to a screw 20. The screw 20 is rotatably connected to the guide block 18 by a thread.

[0066] Through the above technical solution design, the support roller 12 supports and guides the pressing material entering the support platform 7; a back support roller 16 is added on the right side of the support platform 7, and the back support roller 16 is supported by the insertion and cooperation of the guide block 18 and the connecting platform 14, thereby guiding the pressing material after secondary pressing.

[0067] Example 5:

[0068] Please see Figures 1-9 Based on Embodiment 1, a further improvement is made: a pressure roller 22 is provided on the left side of the support roller 3, and a tension roller 23 is provided on the left side of the movable roller 4, with the tension roller 23 positioned directly above the pressure roller 22; movable bosses 24 are provided at both the front and rear ends of the tension roller 23 and the pressure roller 22, and the movable bosses 24 are slidably inserted into movable grooves 2-2 opened in the vertical ends on the front and rear sides of the fixed frame 2, respectively; a limiting platform 27 is provided on the outer side of the movable bosses 24, and the limiting platform 27 is in contact with the frame. On the outside of the vertical end of the fixed frame 2; the upper and lower movable bosses 24 in the same movable groove 2-2 are connected by a double-acting screw 25. The upper end of the double-acting screw 25 is provided with a rotating shaft. After the rotating shaft passes through the fixed frame 2 through the bearing, it is set on the upper side of the fixed frame 2. The front and rear rotating shafts are connected by a worm gear transmission group 26. A frame 28 is fixed on the upper side of the fixed frame 2, and the worm gear transmission group 26 is set in the frame 28. A frame cover 29 is provided on the upper side of the frame 28.

[0069] Through the above technical solution design, the worm gear transmission group 26 makes the front and rear rotating shafts rotate synchronously, which drives the bidirectional lead screw 25 to rotate simultaneously, drives the moving boss 24, adjusts the distance between the tension roller 23 and the pressure roller 22, and adjusts the tension of the fabric and the substrate during the transmission process.

[0070] The working principle of the present invention is as follows: First, the interior fabric to be laminated and the substrate are respectively installed on the corresponding unwinding structure of the fabric unwinding assembly 1-1 to complete the preparation work before unwinding; after the device is started, the fabric unwinding assembly 1-1 releases the fabric and the substrate simultaneously, and the two are simultaneously transported to the fixed frame 2 area.

[0071] Within the fixed frame 2, the worm gear transmission assembly 26 is first activated, driving the two front and rear rotating shafts to rotate synchronously, which in turn drives the bidirectional lead screw 25 to rotate. The bidirectional lead screw 25 drives the two upper and lower movable bosses 24 within the same movable groove 2-2 to move relative to each other, adjusting the distance between the tension roller 23 and the pressure roller 22, thereby precisely controlling the tension of the fabric and substrate during the transmission process, avoiding problems such as looseness and wrinkles, and ensuring the subsequent bonding accuracy. After tensioning, the fabric and substrate continue to be conveyed to the pre-pressing space between the support roller 3 and the movable roller 4. The lifting cylinder 5-2 in the movable component 5 is activated, and the lifting cylinder 5-2 pushes the movable frame 5-1 to move up and down. The movable frame 5-1 drives the movable block 5-3 to slide along the movable groove 2-1 of the fixed frame 2 through the connecting strip 5-4, thereby driving the movable roller 4 to approach the support roller 3, applying a slight and uniform pre-pressure to initially bond and align the fabric and substrate, preventing defects such as misalignment and wrinkles during the subsequent main pressing process.

[0072] After pre-pressing and alignment, the fabric and substrate enter the pressing assembly 1-2. The pressed composite material continues to be conveyed to the shaping and pressing space between the support platform 7 and the heating frame 8. The adjusting motor 11-2 of the adjusting assembly 11 is started, driving the adjusting gear 11-3 to rotate. The adjusting gear 11-3 meshes with and drives the transmission gears 11-4 on the left and right sides to rotate synchronously. The transmission gears 11-4 drive the transmission shaft to rotate, which in turn drives the threaded rod 11-5 to rotate. The threaded rod 11-5 drives the movable protrusion 10 to move up and down along the movable groove 6-1 of the fixed block 6 through the threaded transmission, thereby adjusting the distance between the heating frame 8 and the support platform 7 to adapt to composite materials of different thicknesses. At the same time, the hot air blower 9 is started, blowing air into the heating frame 8. The heat dissipation holes at the bottom of the heating frame 8 blow the hot air evenly onto the surface of the composite material, applying constant pressure to the composite material for secondary pressing and shaping, enhancing the bonding strength between the fabric and the substrate, and preventing problems such as springback and weld cracking after the composite material cools down.

[0073] During the shaping and pressing process, the support roller 12 on the left side of the support platform 7 supports and guides the composite material entering the support platform 7 to prevent the composite material from shifting; the back support roller 16 on the right side of the support platform 7 guides the composite material after secondary pressing. The back support roller 16 is fixed on the connecting platform 14 by the bracket 15. The connecting platform 14 and the positioning strip 21 and positioning groove of the connecting seat 13 cooperate to achieve precise installation. The drive motor 19 drives the screw 20 to rotate. The screw 20 drives the guide block 18 to slide along the guide seat 17 through the thread transmission, thereby adjusting the position of the connecting platform 14 to meet the conveying requirements of the composite material.

[0074] Finally, the composite fabric, after being shaped and pressed, is synchronously wound up by the collecting rollers in the winding assembly 1-3 to complete the entire composite bonding process, achieving efficient and high-quality composite bonding of automotive interior fabric and substrate.

[0075] Compared with the prior art, the beneficial effects of the present invention are:

[0076] 1. Abandoning the traditional single-roller pressing method, a three-stage linkage pressing mechanism of "pre-press + main press + shaping press" is designed to achieve layered control of the bonding process; ensure that the fabric and the substrate are initially aligned and bonded, avoiding misalignment and wrinkles during the main press; the secondary pressing and shaping effectively enhances the bonding firmness, prevents springback after cooling and weld cracking, and significantly improves the surface smoothness and service life of the composite fabric.

[0077] 2. A tension adjustment structure is added. The worm gear transmission group 26 drives the bidirectional lead screw 25 to rotate synchronously, adjusting the distance between the tension roller 23 and the pressure roller 22 to accurately control the tension of the fabric and the substrate, avoiding slack and wrinkles during transmission, and further ensuring the bonding accuracy. At the same time, the limiting platform 27 on the outside of the moving boss 24 can guide the movement of the moving boss 24 to ensure the stability and accuracy of tension adjustment.

[0078] 3. The adjustment component 11 can adjust the distance between the heating frame 8 and the support platform 7 by driving the threaded rod 11-5 to rotate through the adjustment motor 11-2; the back support roller 16 can adjust the position of the connecting platform 14 through the drive motor 19. The two can work together to flexibly adapt to composite materials of different thicknesses, improving the versatility and practicality of the device.

[0079] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A composite bonding device for automotive interior fabrics, comprising a base (1), and fabric unwinding assembly (1-1), pressing assembly (1-2), and winding assembly (1-3) arranged sequentially from left to right on the upper side of the base (1); characterized in that: The fixed frame (2) is an inverted "U" shaped structure. The fixed frame (2) is fixed on the base (1) and is located between the fabric unwinding assembly (1-1) and the pressing assembly (1-2). A support roller (3) is fixedly installed inside the fixed frame (2), and a movable roller (4) is installed on the upper side of the support roller (3). The active component (5) is disposed on the upper side of the active roller (4); Fixing block (6), there are two fixing blocks (6), which are fixed on the base (1) symmetrically front and back, and the fixing block (6) is located between the pressing assembly (1-2) and the winding assembly (1-3); The support platform (7) is fixed between two front and rear fixed blocks (6). The upper side of the support platform (7) is provided with a heating frame (8) with heat dissipation holes at the bottom. The upper side of the heating frame (8) is provided with a hot air blower (9). The blowing end of the hot air blower (9) passes through the top plate of the heating frame (8) and is set inside the heating frame (8). The front and rear sides of the heating frame (8) are symmetrically fixed with movable protrusions (10). The movable protrusions (10) are slidably connected in the movable grooves (6-1) opened in the inner wall of the fixed block (6). Adjustment component (11), there are two adjustment components (11), which are respectively set on the upper side of the fixed block (6).

2. The automotive interior fabric composite bonding device according to claim 1, characterized in that: The activity component (5) includes: The movable frame (5-1) is an inverted "U" shaped structure. The movable frame (5-1) covers the upper side of the fixed frame (2), and a lifting cylinder (5-2) is fixed on the upper side of the fixed frame (2). The pushing end of the lifting cylinder (5-2) is connected to the inner top surface of the movable frame (5-1). Two movable blocks (5-3) are slidably inserted into the movable slots (2-1) opened in the vertical ends of the front and rear sides of the fixed frame (2). The front and rear ends of the movable roller (4) are respectively connected to the corresponding movable blocks (5-3). Connecting strip (5-4), there are two connecting strips (5-4), which are respectively fixed on the outer wall of the movable block (5-3), and the connecting strip (5-4) is connected to the inner wall of the vertical end of the movable frame (5-1).

3. The automotive interior fabric composite bonding device according to claim 1, characterized in that: The adjustment component (11) includes: The support frame (11-1) is an inverted "U" shaped structure and is fixed to the upper side of the fixing block (6); The adjusting motor (11-2) is fixed to the upper side of the support frame (11-1) by a motor bracket; the output shaft of the adjusting motor (11-2) passes through the horizontal end of the support frame (11-1) and is provided with an adjusting gear (11-3). The transmission gear (11-4) consists of two gears, which are respectively meshed on the left and right sides of the adjusting gear (11-3). A transmission shaft is inserted and fixed inside the transmission gear (11-4). The transmission shaft rotates through the top plate of the movable groove (6-1) via a bearing and is then provided with a threaded rod (11-5). The threaded rod (11-5) is connected to the movable protrusion (10) by a threaded rotation.

4. The automotive interior fabric composite bonding device according to claim 1, characterized in that: The support platform (7) is provided with a support roller (12) on the left side. The front and rear sides of the support roller (12) are connected to the support platform (7) through support brackets, and the upper surface of the support roller (12) is flush with the upper surface of the support platform (7).

5. The automotive interior fabric composite bonding device according to claim 1, characterized in that: The support platform (7) is fixed with a connecting seat (13) on the lower right side. A connecting platform (14) is inserted into the right side of the connecting seat (13). A U-shaped bracket (15) is fixed to the right side of the connecting platform (14). A back support roller (16) is provided inside the bracket (15). The back support roller (16) is located on the right side of the support platform (7). A guide seat (17) is fixed to the front side of the connecting seat (13). A guide block (18) is slidably inserted inside the guide seat (17). The rear side of the guide block (18) passes through the front side wall of the connecting seat (13) and is inserted into the connecting platform (14). A drive motor (19) is fixed to the front side of the guide seat (17). The output shaft of the drive motor (19) passes through the front side wall of the guide seat (17) and is connected to a screw (20). The screw (20) is connected to the guide block (18) by a threaded rotation.

6. The automotive interior fabric composite bonding device according to claim 4, characterized in that: The connecting seat (13) has a positioning groove in the left side wall, and the connecting platform (14) has a positioning strip (21) fixed on the left side, which is inserted into the positioning groove.

7. The automotive interior fabric composite bonding device according to claim 1, characterized in that: The support roller (3) is provided with a pressing roller (22) on the left side, and the movable roller (4) is provided with a tension roller (23) on the left side, and the tension roller (23) is located directly above the pressing roller (22); both the tension roller (23) and the pressing roller (22) are provided with movable bosses (24) at the front and rear ends, and the movable bosses (24) slide through the movable grooves (2-2) opened in the vertical ends of the front and rear sides of the fixed frame (2); the upper and lower movable bosses (24) in the same movable groove (2-2) are connected by a double-acting screw (25) threaded together, and the upper end of the double-acting screw (25) is provided with a rotating shaft. After the rotating shaft passes through the fixed frame (2) through the bearing, it is located on the upper side of the fixed frame (2), and the front and rear rotating shafts are connected by a worm gear transmission group (26).

8. The automotive interior fabric composite bonding device according to claim 7, characterized in that: The movable boss (24) is provided with a limiting platform (27) on its outer side, and the limiting platform (27) is located on the outer side of the vertical end of the fixed frame (2).

9. The automotive interior fabric composite bonding device according to claim 7, characterized in that: The upper side of the fixed frame (2) is fixed with a frame (28), and the worm gear transmission assembly (26) is set inside the frame (28). The upper side of the frame (28) is covered with a frame cover (29).

Images