An automatic packaging device for composite fabrics

Abstract

The present invention provides an automatic packaging device for composite fabrics, which belongs to the technical field of product packaging. The automatic packaging device for composite fabrics comprises a conveying frame, a packaging mechanism located at the middle of the top end of the conveying frame, and a packaging bag located on the conveying frame. The packaging mechanism comprises a top plate, a hydraulic cylinder located at the top of the top plate, a flexible extrusion plate, a pressing assembly, and a flattening assembly. The flexible extrusion plate is a U-shaped plate, and elastic telescopic rods are connected between the two ends of the U-shaped plate and the left and right ends of the bottom of the top plate. The pressing assembly comprises a connecting plate and two pressing plates extending in the front-back direction, the tops of the two pressing plates are hinged to the connecting plate, and the bottoms of the two pressing plates are respectively in contact with the left and right sides of the top of the flexible extrusion plate. The telescopic end of the hydraulic cylinder slides through the top plate and is fixedly connected to the middle of the top end of the connecting plate. The flattening assembly comprises two flattening rollers located on the left and right sides below the flexible extrusion plate and a low-speed motor for driving the flattening rollers to rotate.

Description

Technical Field

[0001] The invention belongs to the technical field of product packaging, and in particular relates to an automatic packaging device for composite fabrics. Background Art

[0002] Composite fabrics are made of two or more different materials through one or more composite processes to form fabrics with specific functions. Composite fabric packaging devices are special equipment used to package composite fabrics. In the prior art, compression packaging machines are generally used for packaging, and the textiles are directly compressed in the vertical direction by hydraulic equipment.

[0003] A Chinese patent with the authorization announcement number CN118083282B discloses a textile compression packaging machine, including a compression packaging mechanism, including an adjustable compression component and two adjustable placement components hinged to the adjustable compression component, both sides of the adjustable compression component are fixedly connected with arc-shaped toothed plates, and the upper part of the two arc-shaped toothed plates is meshedly connected with the same driving component. The first gear and the second gear are driven by a motor to rotate, so that the second gear and the arc-shaped toothed plate can cooperate to move along the arc-shaped toothed plate, so that the pressing plate can rotate at an angle, and the pressing plate rotates with the rotating component as the center, so that the pressing plate can turn to pressurize the cord fabric, thereby exhausting the air in the cord fabric.

[0004] The force of the compression plate of the existing packaging device is directly applied to the surface of the textile packaging. The pressure plate is a straight plate. Therefore, in the process of tilting downward, if the speed of the tilting and pressing is too fast, as the tilt angle increases, the area pressed by the pressure plate becomes larger, resulting in residual air in the package. Larger amounts of air may flow out from other positions of the bag, causing the bag to burst and affecting the sealing quality. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic packaging device for composite fabrics, aiming to solve the problem in the prior art that when packaging composite fabrics, the pressing plate is a straight plate, and as the inclination angle increases, the pressing area of ​​the pressing plate increases, resulting in residual air in the package.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automated packaging device for composite fabrics, comprising a conveyor frame, a packaging mechanism located in the middle of the top end of the conveyor frame, and a packaging bag located on the conveyor frame, the packaging mechanism comprising a top plate, a hydraulic cylinder located on the top of the top plate, a flexible extrusion plate, a pressing assembly, and a flattening assembly.

[0007] The flexible extrusion plate is a U-shaped plate, and elastic telescopic rods are connected between the two ends of the U-shaped plate and the left and right ends of the bottom of the top plate.

[0008] The down-pressing assembly includes a connecting plate extending in the front-to-back direction and two down-pressing plates. The tops of the two down-pressing plates are hinged to the connecting plate, and the bottoms of the two down-pressing plates respectively contact the left and right sides of the top of the flexible extrusion plate. The telescopic end of the hydraulic cylinder slides through the top plate and is fixedly connected to the middle of the top end of the connecting plate.

[0009] The flattening assembly includes two flattening rollers located on the left and right sides below the flexible extrusion plate and a low-speed motor that drives the flattening rollers to rotate. The axis of the flattening roller extends along the length direction of the connecting plate and mounting plates are connected between the two ends of the flattening roller and the front and rear ends of the bottom of the lower pressure plate. The outer wall of the flattening roller is equipped with two spiral strips extending from the two ends to the middle and rotating in opposite directions.

[0010] The effect is that, by setting a flexible extrusion plate, the packaging bag can be flattened from the middle to both sides and the air in the bag can be squeezed out from the middle to the left and right directions. By setting flattening rollers and spiral strips, the packaging bag can be smoothed from the middle to the front and back in cooperation with the flexible extrusion plate; the device can discharge the air in the packaging bag while flattening the packaging bag, thereby avoiding the situation where part of the air is blocked inside when being discharged, causing the bag to burst and affecting the sealing quality.

[0011] There are four elastic telescopic rods, which are respectively located at the four corners of the bottom of the top plate. The fixed ends of the elastic telescopic rods are hinged to the top plate, and the telescopic ends of the elastic telescopic rods are hinged to the flexible extrusion plate.

[0012] The effect is that after sealing one packaging bag, the flexible extrusion plate can be driven to reset, so as to facilitate the sealing of the next packaging bag.

[0013] Heat-sealing strips extending along the axis direction of the flattening roller are fixedly installed on both ends of the flexible extrusion plate. A conveyor belt for conveying packaging bags along the left and right directions is installed on the top of the conveying frame. There are three conveyor belts, which are connected end to end in sequence. A heat-sealing extrusion roller with an axis parallel to the axis of the flattening roller is provided between two adjacent conveyor belts. Both ends of the heat-sealing extrusion roller are rotatably installed on both sides of the top of the conveying frame, and the packaging mechanism is located between the two heat-sealing extrusion rollers.

[0014] The effect is that the packaging bag can be sealed in time after the packaging bag is flattened and the air in the bag is discharged.

[0015] The lower pressure assembly also includes two connecting blocks fixedly installed at both ends of the connecting plate and a supporting mechanism for gradually increasing the distance between the two lower pressure plates from top to bottom. The tops of the two lower pressure plates are located on both sides of the connecting plate. The two ends of the top of the lower pressure plate are respectively rotatably connected to the two connecting blocks at both ends of the connecting plate, and the axis of the rotating shaft is parallel to the axis of the flattening roller.

[0016] A slide groove extending in the up and down directions is provided on one side of the connecting block close to the lower pressure plate, and connecting grooves are provided on the two lower pressure plates. The supporting mechanism includes a connecting shaft and two transmission plates located below the connecting plate, and both ends of the connecting shaft are slidably sleeved in the slide grooves on the two connecting blocks. A first connecting part is provided on both sides of the top end of one of the transmission plates, and a second connecting part is provided in the middle of the top end of the other transmission plate. The top ends of the two first connecting parts are rotatably sleeved on the outer wall of the connecting shaft, and the top end of the second connecting part is fixedly sleeved on the outer wall of the connecting shaft and is located between the two first connecting parts. The bottoms of the two transmission plates are hinged with hinge shafts between the bottoms of the side walls of the two connecting grooves.

[0017] Limiting pieces are fixedly installed at both ends of the outer wall of the connecting shaft, the two first connecting parts are located between the two limiting pieces, and torsion springs sleeved on the outer wall of the connecting shaft are provided between the two limiting pieces and the two first connecting parts, and the two ends of the torsion spring are fixedly connected to the limiting pieces and the first connecting parts respectively.

[0018] One end of the mounting plate is hinged to the side wall of the lower pressure plate, and the other end of the mounting plate is rotatably sleeved on the rotating shaft of the flattening roller. The low-speed motor is fixedly mounted on the mounting plate, and the output shaft of the low-speed motor rotates through the mounting plate and is transmission-connected to the rotating shaft of the flattening roller.

[0019] The effect is that, by providing the supporting mechanism, a certain gap can be initially provided between the bottoms of the two lower pressing plates, so that the two ends of the bottom of the lower pressing plates can smoothly move away from each other when the lower pressing plates are lowered.

[0020] The paving assembly also includes a telescopic connecting rod, a fixed end of the telescopic connecting rod is hinged to the side wall of the lower pressure plate and is located above the mounting plate, and a telescopic end of the telescopic connecting rod is hinged to the middle of the top end of the mounting plate.

[0021] The effect is that by controlling the telescopic end of the telescopic connecting rod to be pushed out or retracted, it is ensured that the mounting plate can always be parallel to the conveyor belt while moving with the lower pressure plate, so that the flattening roller can move smoothly on the surface of the packaging bag.

[0022] A support plate is fixedly installed between the front side and the rear side of the bottom end of the top plate and the top of the conveying frame.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] By setting up a flexible extrusion plate, the packaging bag can be flattened from the middle to both sides and the air in the bag can be squeezed out from the middle to the left and right. By setting up flattening rollers and spiral strips, the packaging bag can be smoothed from the middle to the front and back in cooperation with the flexible extrusion plate; the device can discharge the air in the packaging bag while flattening the packaging bag, thereby avoiding some air being blocked inside when being discharged, causing the bag to burst and affecting the sealing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the structure of the packaging device in the present invention;

[0027] Figure 2 It is a structural schematic diagram of the packaging mechanism in the present invention;

[0028] Figure 3 It is a partial cross-sectional structural schematic diagram of the packaging mechanism in the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the pressing component and the paving component in the present invention;

[0030] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 6 For the present invention Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0032] Figure 7 It is a schematic diagram of the partial structure of the downward pressing component in the present invention.

[0033] In the figure: 1. conveyor frame; 11. conveyor belt; 12. heat-sealing extrusion roller; 13. driving assembly; 2. packaging mechanism; 21. top plate; 211. support plate; 22. flexible extrusion plate; 221. elastic telescopic rod; 222. heat-sealing strip; 23. pressing assembly; 231. connecting plate; 232. connecting block; 2321. slide groove; 233. pressing plate; 234. connecting groove; 235. connecting shaft; 236. transmission plate; 2361. first connecting part; 2362. second connecting part; 2363. hinge shaft; 237. limiter; 238. torsion spring; 24. hydraulic cylinder; 25. flattening assembly; 251. mounting plate; 252. telescopic connecting rod; 253. flattening roller; 254. low-speed motor; 255. spiral strip; 3. packaging bag. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 7 The present invention provides the following technical solution: an automatic packaging device for composite fabrics, comprising a conveyor frame 1, a packaging mechanism 2 located at the middle of the top of the conveyor frame 1, and a packaging bag 3 located on the conveyor frame 1.

[0036] refer to Figure 1 As shown, a conveyor belt 11 for conveying the packaging bags 3 in the left and right directions is installed on the top of the conveyor frame 1. There are three conveyor belts 11, which are connected end to end in sequence. A heat sealing extrusion roller 12 whose axis is parallel to the axis of the flattening roller 253 is provided between two adjacent conveyor belts 11. Both ends of the heat sealing extrusion roller 12 are rotatably installed on both sides of the top of the conveyor frame 1. The packaging mechanism 2 is located between the two heat sealing extrusion rollers 12, and the packaging bags 3 are located between the packaging mechanism 2 and the conveyor belt 11. A driving component 13 is fixedly installed at one end of the conveyor frame 1. The driving component 13 is a motor and a reduction box, which is used to drive the conveyor belt 11 for transportation, wherein the output end of the driving component 13 is drivingly connected to the rotating shaft of the conveyor belt 11. Specifically, a coupling can be used for connection, or the rotating shaft of the conveyor belt 11 can be welded to the output end of the driving component 13 by direct welding.

[0037] refer to Figure 2-Figure 7 As shown, the packaging mechanism 2 includes a top plate 21 , a flexible extrusion plate 22 , a pressing assembly 23 , a hydraulic cylinder 24 located on the top of the top plate 21 , and a flattening assembly 25 .

[0038] refer to Figure 2 and Figure 3 As shown, the top plate 21 is parallel to the conveyor belt 11 , and a support plate 211 is fixedly installed between the front and rear sides of the bottom end of the top plate 21 and the top of the conveyor frame 1 .

[0039] The flexible extrusion plate 22 is a U-shaped plate, and elastic telescopic rods 221 are connected between the two ends of the U-shaped plate and the left and right ends of the bottom of the top plate 21. There are four elastic telescopic rods 221, and the four elastic telescopic rods 221 are respectively located at the four corners of the bottom of the top plate 21. The fixed end of the elastic telescopic rod 221 is hinged to the top plate 21, and the telescopic end of the elastic telescopic rod 221 is hinged to the flexible extrusion plate 22. The elastic telescopic rod 221 is used to support and limit the flexible extrusion plate 22 and to drive the flexible extrusion plate 22 to reset after the pressing component 23 flattens the flexible extrusion plate 22 on the packaging bag 3.

[0040] refer to Figure 3-Figure 5 and Figure 7 As shown, the pressing assembly 23 includes a connecting plate 231 extending in the front-to-back direction, two connecting blocks 232 fixedly mounted at both ends of the connecting plate 231, two pressing plates 233, and a supporting mechanism for gradually increasing the distance between the two pressing plates 233 from top to bottom.

[0041] A sliding groove 2321 extending in the up-down direction is formed on one side of the connecting block 232 close to the lower pressing plate 233 .

[0042] The tops of the two lower pressure plates 233 are respectively located on both sides of the connecting plate 231, and the bottoms of the two lower pressure plates 233 are respectively in conflict with the left and right sides of the top of the flexible extrusion plate 22, and the two ends of the top of the lower pressure plates 233 are respectively rotatably connected to the two connecting blocks 232 at both ends of the connecting plate 231, and the axis of the rotating shaft is parallel to the axis of the flattening roller 253, so that the tops of the two lower pressure plates 233 are hinged to the connecting plate 231, and connecting grooves 234 are opened on the two lower pressure plates 233.

[0043] refer to Figure 4 , Figure 5 and Figure 7 As shown, the supporting mechanism includes a connecting shaft 235 located below the connecting plate 231 and two transmission plates 236 .

[0044] Both ends of the connecting shaft 235 are respectively slidably sleeved in the sliding grooves 2321 on the two connecting blocks 232 , and both ends of the outer wall of the connecting shaft 235 are fixedly installed with limiting members 237 .

[0045] A hinge shaft 2363 is hinged between the bottom of the two transmission plates 236 and the bottom of the side walls of the two connecting grooves 234, wherein first connecting parts 2361 are provided on both sides of the top of one transmission plate 236, and a second connecting part 2362 is provided in the middle of the top of the other transmission plate 236, the tops of the two first connecting parts 2361 are rotatably sleeved on the outer wall of the connecting shaft 235, the top of the second connecting part 2362 is fixedly sleeved on the outer wall of the connecting shaft 235 and located between the two first connecting parts 2361, the two first connecting parts 2361 are located between the two limiting members 237, and a torsion spring 238 sleeved on the outer wall of the connecting shaft 235 is provided between the two limiting members 237 and the two first connecting parts 2361, and the two ends of the torsion spring 238 are fixedly connected to the limiting member 237 and the first connecting part 2361, respectively.

[0046] refer to Figure 2 As shown, the hydraulic cylinder 24 is fixedly installed in the middle of the top of the top plate 21. The hydraulic cylinder 24 is extended and retracted in the up and down directions. The retractable end of the hydraulic cylinder 24 slides through the top plate 21 and is fixedly connected to the middle of the top of the connecting plate 231 of the pressing assembly 23, so as to drive the pressing assembly 23 to descend.

[0047] refer to Figure 4 and Figure 6 As shown, the paving assembly 25 includes a mounting plate 251 , a telescopic connecting rod 252 , two paving rollers 253 located on the left and right sides below the flexible extrusion plate 22 , and a low-speed motor 254 for driving the paving rollers 253 to rotate.

[0048] The mounting plate 251 is located at both sides of the bottom of the two lower pressing plates 233 , and one end of the mounting plate 251 is hinged to the side wall of the lower pressing plate 233 .

[0049] The telescopic connecting rod 252 is an electric telescopic rod. The fixed end of the telescopic connecting rod 252 is hinged to the side wall of the lower pressure plate 233 and is located above the mounting plate 251. The telescopic end of the telescopic connecting rod 252 is hinged to the middle of the top end of the mounting plate 251. By controlling the telescopic end of the telescopic connecting rod 252 to be ejected or retracted, it is ensured that the mounting plate 251 can always be parallel to the conveyor belt 11 while moving with the lower pressure plate 233.

[0050] The axis of the flattening roller 253 extends along the length direction of the connecting plate 231, and the rotating shafts at both ends of the flattening roller 253 are respectively rotated and sleeved on the two mounting plates 251 at both ends of the lower pressure plate 233, and one end away from the lower pressure plate 233, and the outer wall of the flattening roller 253 is installed with two spiral strips 255 extending from the two ends to the middle and rotating in opposite directions.

[0051] The low-speed motor 254 is fixedly mounted on the mounting plate 251, and the output shaft of the low-speed motor 254 rotates through the mounting plate 251 and is transmission-connected to the rotating shaft of the flattening roller 253. Specifically, a coupling can be used for connection, or the rotating shaft of the flattening roller 253 can be directly welded to the output shaft of the low-speed motor 254.

[0052] The implementation principle of the embodiment of the present invention is as follows: when the composite fabric is packaged, the composite fabric is put into the packaging bag 3 , and then the packaging bag 3 containing the composite fabric is conveyed to the bottom of the flexible extrusion plate 22 by the conveyor belt 11 .

[0053] The hydraulic cylinder 24 is started to extend its telescopic end and drive the connecting plate 231 to start descending. Since the distance between the two lower pressing plates 233 gradually increases from top to bottom, as the connecting plate 231 descends, the two bottom ends of the two lower pressing plates 233 gradually move from the middle of the top of the flexible extrusion plate 22 to the left and right sides, and gradually press the flexible extrusion plate 22 from a U-shape to a flat plate. As the flexible extrusion plate 22 is gradually pressed into a flat plate, the middle of the bottom end of the flexible extrusion plate 22 first contacts the middle of the top of the packaging bag 3, and then the flexible extrusion plate 22 begins to gradually squeeze the packaging bag 3 from the middle to the left and right sides, and the squeezing order is from the middle of the packaging bag 3 to the left and right sides. As the flexible extrusion plate 22 squeezes the packaging bag 3, the air inside the packaging bag 3 begins to be gradually squeezed from the middle to the left and right sides, and squeezed out from the openings on the left and right sides. This enables the device to gradually squeeze out the air in the packaging bag 3.

[0054] At the same time, the low-speed motor 254 is started to drive the flattening rollers 253 to rotate. The two flattening rollers 253 rotate in opposite directions and the direction of rotation is from the center of the packaging bag 3 to its end. As the flattening rollers 253 rotate, the flattening rollers 253 discharge the air in the packaging bag 3 from the middle to the sides. The two spiral strips 255 on the outer wall of the flattening rollers 253 rotate with the flattening rollers 253. As the bottom ends of the two lower pressing plates 233 gradually move from the middle of the top of the flexible extrusion plate 22 to the left and right sides, the air in the packaging bag 3 is discharged from the middle of the flattening rollers 253 to the sides along the axis of the flattening rollers 253. Under the action of the mounting plate 251, the roller 253 also starts to move from the middle of the packaging bag 3 to the left and right sides respectively, and at the same time controls the telescopic end of the telescopic connecting rod 252 to extend, so that it drives the mounting plate 251 to rotate with the hinge of the mounting plate 251 and the lower pressure plate 233 as the axis, so that the mounting plate 251 can always be parallel to the conveyor belt 11. As the flattening roller 253 moves from the middle of the packaging bag 3 to both sides and the flattening roller 253 rotates, the air in the packaging bag 3 can be discharged, and at the same time, it can prevent part of the air from being blocked inside when being discharged, thereby causing the bag to burst and affecting the sealing quality.

[0055] As the bottoms of the two lower pressing plates 233 gradually open, the bottoms of the two transmission plates 236 also gradually open, causing the torsion spring 238 to be twisted due to force.

[0056] As the flexible extrusion plate 22 gradually changes from a U-shape to a flat plate, the telescopic end of the elastic telescopic rod 221 is pulled out. When the flexible extrusion plate 22 completely becomes a flat plate, the flattening roller 253 presses the bag opening of the packaging bag 3 to the heat sealing extrusion roller 12. At this time, the heat sealing strips 222 on the left and right sides of the flexible extrusion plate 22 are just at the heat sealing extrusion roller 12, and cooperate with the heat sealing extrusion roller 12 to heat-seal the bag opening of the packaging bag 3. After the bag opening of the packaging bag 3 is sealed, the telescopic end of the hydraulic cylinder 24 is retracted. At this time, the torsion spring 238 drives the two transmission plates 236 and the bottom of the two lower pressure plates 233 to gradually approach under the action of its own elastic force, and the two ends of the flexible extrusion plate 22 begin to restore to a U-shape under the action of its own elastic force and the elastic telescopic rod 221.

[0057] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An automatic packaging device for composite fabrics, comprising a conveyor frame (1), a packaging mechanism (2) located at the middle of the top of the conveyor frame (1), and a packaging bag (3) located on the conveyor frame (1), the packaging mechanism (2) comprising a top plate (21) and a hydraulic cylinder (24) located at the top of the top plate (21), characterized in that: The packaging mechanism (2) further comprises a flexible extrusion plate (22), a pressing component (23) and a flattening component (25); The flexible extrusion plate (22) is a U-shaped plate, and elastic telescopic rods (221) are connected between the two ends of the U-shaped plate and the left and right ends of the bottom of the top plate (21); The pressing assembly (23) comprises a connecting plate (231) extending in the front-rear direction and two pressing plates (233), the tops of the two pressing plates (233) are hinged to the connecting plate (231), the bottoms of the two pressing plates (233) are respectively in contact with the left and right sides of the top of the flexible extrusion plate (22), and the telescopic end of the hydraulic cylinder (24) slides through the top plate (21) and is fixedly connected to the middle of the top of the connecting plate (231); The paving assembly (25) comprises two paving rollers (253) located on the left and right sides below the flexible extrusion plate (22) and a low-speed motor (254) for driving the paving rollers (253) to rotate. The axis of the paving roller (253) extends along the length direction of the connecting plate (231) and mounting plates (251) are connected between the two ends of the paving roller (253) and the front and rear ends of the bottom of the lower pressing plate (233). The outer wall of the paving roller (253) is provided with two spiral strips (255) extending from the two ends to the middle and rotating in opposite directions.

2. The automatic packaging device for composite fabrics according to claim 1, characterized in that: There are four elastic telescopic rods (221), which are respectively located at the four corners of the bottom of the top plate (21); the fixed ends of the elastic telescopic rods (221) are hinged to the top plate (21); and the telescopic ends of the elastic telescopic rods (221) are hinged to the flexible extrusion plate (22).

3. The automatic packaging device for composite fabrics according to claim 2, characterized in that: The left and right ends of the flexible extrusion plate (22) are fixedly mounted with heat-sealing strips (222) extending along the axis direction of the flattening roller (253); the top of the conveying frame (1) is mounted with a conveyor belt (11) for conveying the packaging bag (3) along the left and right directions; there are three conveyor belts (11), which are connected end to end in sequence; a heat-sealing extrusion roller (12) whose axis is parallel to the axis of the flattening roller (253) is provided between two adjacent conveyor belts (11); the two ends of the heat-sealing extrusion roller (12) are rotatably mounted on both sides of the top of the conveying frame (1); and the packaging mechanism (2) is located between the two heat-sealing extrusion rollers (12).

4. The automatic packaging device for composite fabrics according to claim 1, characterized in that: The pressing assembly (23) further comprises two connecting blocks (232) fixedly mounted at both ends of the connecting plate (231) and a supporting mechanism for gradually increasing the distance between the two pressing plates (233) from top to bottom, the tops of the two pressing plates (233) being located on both sides of the connecting plate (231), the top ends of the pressing plates (233) being rotatably connected to the two connecting blocks (232) at both ends of the connecting plate (231), and the axis of the rotating shaft being parallel to the axis of the flattening roller (253).

5. The automatic packaging device for composite fabrics according to claim 4, characterized in that: A sliding groove (2321) extending in the up-down direction is provided on one side of the connecting block (232) close to the lower pressing plate (233), and a connecting groove (234) is provided on both lower pressing plates (233). The supporting mechanism comprises a connecting shaft (235) and two transmission plates (236) located below the connecting plate (231), and both ends of the connecting shaft (235) are respectively slidably sleeved in the sliding grooves (2321) on the two connecting blocks (232). Both sides of the top of one of the transmission plates (236) are provided with a first A connecting portion (2361) is provided at the middle of the top end of the other transmission plate (236), the top ends of the two first connecting portions (2361) are rotatably sleeved on the outer wall of the connecting shaft (235), the top end of the second connecting portion (2362) is fixedly sleeved on the outer wall of the connecting shaft (235) and is located between the two first connecting portions (2361), and the bottom ends of the two transmission plates (236) are respectively hinged to the bottom ends of the side walls of the two connecting grooves (234) with hinge shafts (2363).

6. The automatic packaging device for composite fabrics according to claim 5, characterized in that: Limiting members (237) are fixedly mounted on both ends of the outer wall of the connecting shaft (235); the two first connecting portions (2361) are located between the two limiting members (237); a torsion spring (238) sleeved on the outer wall of the connecting shaft (235) is provided between the two limiting members (237) and the two first connecting portions (2361); and the two ends of the torsion spring (238) are fixedly connected to the limiting member (237) and the first connecting portion (2361), respectively.

7. The automatic packaging device for composite fabrics according to claim 1, characterized in that: One end of the mounting plate (251) is hinged to the side wall of the lower pressure plate (233), and the other end of the mounting plate (251) is rotatably sleeved on the rotating shaft of the flattening roller (253). The low-speed motor (254) is fixedly mounted on the mounting plate (251), and the output shaft of the low-speed motor (254) rotatably passes through the mounting plate (251) and is drivingly connected to the rotating shaft of the flattening roller (253).

8. The automatic packaging device for composite fabrics according to claim 7, characterized in that: The paving assembly (25) further comprises a telescopic connecting rod (252), the fixed end of the telescopic connecting rod (252) being hinged to the side wall of the lower pressing plate (233) and being located above the mounting plate (251), and the telescopic end of the telescopic connecting rod (252) being hinged to the middle of the top end of the mounting plate (251).

9. The automatic packaging device for composite fabrics according to claim 1, characterized in that: A support plate (211) is fixedly mounted between the front and rear sides of the bottom end of the top plate (21) and the top of the conveying frame (1).

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