Vacuum pattern suction device of pressing mechanism for breathable materials and synthetic leather

Abstract

The utility model discloses a vacuum pattern suction device of a pressing mechanism for breathable materials and synthetic leather, which relates to the technical field of synthetic leather pattern suction devices, and comprises a rack, a roller is rotatably mounted on the rack, a pattern suction component is arranged on the outer wall of the roller, the pattern suction component is of a cylindrical structure formed by a plurality of fan-shaped aluminum rows in a surrounding manner, and the fan-shaped aluminum rows are arranged on the outer wall of the roller. A roller tool is arranged on the outer wall of the pattern suction assembly, a pressing mechanism is arranged below the roller, and the pressing mechanism comprises an annular crawler belt which is matched with the roller to press the synthetic leather. On the basis of vacuum adsorption, the pressing device can provide extra tensile force so that synthetic leather can be attached to the roller wheel tool more tightly, the extra tensile force is particularly important when thick synthetic leather or synthetic leather not prone to deformation is processed, and the texture processing quality and efficiency can be remarkably improved through the arrangement of the pressing device.

Description

Technical Field

[0001] This utility model belongs to the technical field of synthetic leather suction devices, specifically a vacuum suction device for a pressing mechanism of breathable materials and synthetic leather. Background Technology

[0002] Breathable materials are those that allow gases (such as air or water vapor) to pass through. Breathability is usually measured by air permeability rate, which is the volume of gas passing through a unit area of ​​the material per unit time under certain pressure conditions. Breathable materials are widely used in clothing, footwear, furniture, and other fields to improve comfort and functionality.

[0003] Synthetic leather is a new type of breathable material that mimics the properties of natural leather. It typically consists of a base fabric as the breathable substrate, with a surface coating of polyurethane (PU) or other synthetic resins. Depending on its structure and manufacturing process, synthetic leather has a certain degree of breathability, but the breathability varies depending on the specific materials and processes used.

[0004] Ordinary synthetic leather: Many synthetic leathers have relatively poor breathability due to limitations imposed by their surface coatings. For example, some artificial leathers using a polyvinyl chloride (PVC) coating have poor breathability.

[0005] High-performance synthetic leather: Synthetic leather made with special processes (such as microporous polyurethane layers), such as microfiber synthetic leather, has good breathability and can approach or even rival natural leather.

[0006] Wet-process PU synthetic leather: Synthetic leather produced through a wet process has good moisture permeability and breathability, and a soft feel, making it closer to natural leather.

[0007] Vacuum texturing devices primarily rely on the negative pressure generated by a vacuum pump to adhere synthetic leather to the surface of rollers. During this process, the texture details on the rollers are precisely transferred to the synthetic leather, creating the desired texture effect.

[0008] However, due to the diversity of synthetic leather materials and their varying thicknesses, while ordinary synthetic leather can be treated with vacuum suction devices, high-performance synthetic leathers and wet-process PU synthetic leathers with good breathability mentioned above may sometimes struggle to achieve a perfect fit using only vacuum suction.

[0009] Therefore, in order to enhance the fit between the synthetic leather and the rollers, an additional clamping mechanism is needed to provide additional clamping force, so as to ensure that the synthetic leather and the rollers can fit effectively when processing thicker or less deformable synthetic leather. Utility Model Content

[0010] To address the issue that vacuum adsorption alone may sometimes fail to achieve a perfect fit due to the diversity and varying thicknesses of synthetic leather materials, this invention provides a vacuum adsorption device for pressing mechanisms of breathable materials and synthetic leather.

[0011] The technical solution adopted by this utility model is as follows: A vacuum suction device for a pressing mechanism of breathable materials and synthetic leather includes a frame, on which a roller is rotatably mounted. A suction component is provided on the outer wall of the roller. The suction component is a cylindrical structure formed by several fan-shaped aluminum bars. A roller is provided on the outer wall of the suction component. Synthetic leather is wrapped around the roller. An air bladder is provided between the inner wall of the suction component and the outer wall of the roller for pushing the fan-shaped aluminum bars to press against the roller. The air inlet of the air bladder is connected to the air outlet on the roller. A pressing mechanism is provided below the roller. The pressing mechanism includes an annular track that cooperates with the roller to press the synthetic leather.

[0012] Furthermore, the inner wall of the annular track is provided with four guide rollers, which are mounted on the frame. The two guide rollers on both sides of the inner wall of the annular track are located above the two guide rollers in the middle of the inner wall. The annular track passes through the four guide rollers in a clockwise or counterclockwise direction and is tensioned in a U-shape with the outer wall of the roller.

[0013] Furthermore, all four guide rollers are rotatably connected to the frame, and the two upper guide rollers are connected to cylinders at both ends via sleeves. The cylinders are fixed to the frame, and the sleeves are fixed to the output ends of the cylinders. The sleeves are rotatably connected to the guide rollers via bearings. The cylinders are used to drive the guide rollers to move upward, tension the annular track, and press the synthetic leather on the rollers.

[0014] Furthermore, the length of the guide roller is greater than or equal to the length of the roller.

[0015] Furthermore, one end of the roller is provided with an air source fixed on the frame, and the other end is provided with a water cooling source fixed on the frame. A vacuum suction assembly is provided between the air source and the outer end face of the roller.

[0016] Furthermore, the vacuum suction component is an external vacuum suction cup with several suction holes evenly distributed on it. The suction holes are connected to the air extraction channel on the end face of the fan-shaped aluminum strip. A first fixed seat is provided at one end of the vacuum suction cup near the roller. A copper brake plate is installed between the vacuum suction cup and the first fixed seat. A second fixed seat is fixedly connected to the first fixed seat. The second fixed seat is installed inside the roller. A bracket sleeved on the outer end face of the roller is fixedly connected to the first fixed seat. A sliding groove is provided on the bracket that slides radially with the end face of the fan-shaped aluminum strip.

[0017] Furthermore, the end face of the fan-shaped aluminum busbar is provided with a water inlet channel and a water outlet channel, and the water inlet channel is located above the water outlet channel, and the water inlet channel and the water outlet channel are connected.

[0018] Furthermore, the water inlet channel and the water outlet channel are provided in two sets, and are symmetrically distributed on both sides of the air extraction channel.

[0019] Furthermore, an air extraction channel is formed by splicing two adjacent fan-shaped aluminum bars.

[0020] Furthermore, the outer surface of the fan-shaped aluminum strip is provided with a textured groove, and an air suction channel is opened on the textured groove, which is connected to the air extraction channel.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0022] This vacuum texturing device, designed for breathable materials and synthetic leather, provides additional tension on top of vacuum adsorption. This tension allows the synthetic leather to adhere more tightly to the rollers, which is particularly important when processing thicker or less deformable synthetic leather. The tightening device significantly improves the quality and efficiency of texturing. The close fit between the synthetic leather and the rollers results in clearer, finer textures, thus enhancing the overall product quality. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a structural schematic diagram provided for Embodiment 1 of the present utility model;

[0025] Figure 2 This is a structural schematic diagram provided for Embodiment 2 of the present utility model;

[0026] Figure 3 for Figure 2 A schematic diagram of the structure with a frame.

[0027] Figure 4 for Figure 2 Schematic diagram of the structure of the central sector-shaped aluminum busbar;

[0028] Figure 5 for Figure 4 Top view.

[0029] Attached diagram descriptions: 1. Frame; 2. Roller; 3. Sector-shaped aluminum strip; 4. Roller fixture; 5. Airbag; 101. Circular track; 102. Guide roller; 103. Cylinder;

[0030] 10. Vacuum suction cup; 11. Suction hole; 12. Air extraction channel; 13. First fixed seat; 14. Copper brake pad; 15. Second fixed seat; 16. Bracket; 17. Slide groove; 18. Water inlet channel; 19. Water outlet channel; 20. Suction groove; 21. Suction channel. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] The following is combined with Figures 1-5 This utility model will be described in detail.

[0035] Example

[0036] Example 1

[0037] Depend on Figures 1-5 It is understood that a vacuum texturing device for pressing breathable materials and synthetic leather includes a frame 1, with a roller 2 rotatably mounted on the frame 1. The frame 1 is welded from high-strength steel to ensure the stability and durability of the equipment. The frame 1 is equipped with bearing seats supporting the roller 2 and a drive motor, which is the same as in the prior art and will not be described in detail here. The roller 2 is preferably made of stainless steel, which has a smooth surface and rotates flexibly. Both ends of the roller 2 are mounted on the frame via bearings and are driven to rotate by the drive motor.

[0038] The outer wall of the roller 2 is equipped with a texturing assembly, which is a cylindrical structure formed by several fan-shaped aluminum bars 3, preferably a cylindrical structure formed by 24 fan-shaped aluminum bars 3. The standard dimensions of each fan-shaped aluminum bar are an arc length of 1750 mm, a width of 68 mm, and a thickness of 50 mm. The outer surface of the fan-shaped aluminum bars is machined with 22 texturing grooves 20, with a groove depth of 2 mm and a groove width of 2.5 mm. There are 48 suction holes 21 evenly distributed on the texturing grooves, with a hole diameter of 2 mm and a hole spacing of 35 mm.

[0039] The outer wall of the texturing assembly is equipped with rollers 4, and synthetic leather is wrapped around the rollers 4. The size of the rollers 4 matches the size of the texturing assembly, and the surface is processed with a pattern corresponding to the desired texture. The depth and shape of the pattern are designed according to product requirements. The rollers 4 can be ceramic molds made of ceramic material, which have strong air permeability.

[0040] An air bladder 5 is provided between the inner wall of the suction assembly and the outer wall of the roller 2 to push the fan-shaped aluminum strip 3 against the roller 4. The air inlet of the air bladder 5 is connected to the air outlet on the roller 2. The air bladder 5 is preferably made of high-temperature and high-pressure resistant rubber.

[0041] A pressing mechanism is provided below the roller 2, including an annular track 101 that cooperates with the roller 2 to press the synthetic leather. Four guide rollers 102 are provided on the inner wall of the annular track 101. Two guide rollers 102 on both sides of the inner wall of the annular track 101 are located above the two guide rollers 102 in the middle of the inner wall. The annular track 101 passes through the four guide rollers 102 clockwise or counterclockwise in sequence and is tensioned in a U-shape with the outer wall of the roller 2. The annular track 101 should be made of a soft, wear-resistant, and high-temperature-resistant material to avoid damaging the synthetic leather.

[0042] The clamping mechanism is designed to enhance the fit between the synthetic leather and the roller 4, ensuring accurate texture transfer. Based on vacuum adsorption, the clamping mechanism provides additional tension, allowing the synthetic leather to adhere more tightly to the roller 4. This additional tension is particularly important when handling thicker or less deformable synthetic leather.

[0043] Four guide rollers 102 are rotatably connected to the frame 1, and the two upper guide rollers 102 are connected to cylinders 103 at both ends via sleeves. The cylinders 103 are fixed to the frame 1, and the sleeves are fixed to the output ends of the cylinders 103. The sleeves are rotatably connected to the guide rollers 102 via bearings. The cylinders 103 are used to drive the guide rollers 102 to move upward, tensioning the annular track 101 and pressing the synthetic leather on the roller 2. The frame 1 is used to fix the guide rollers 102, and the cylinders 103 provide power for the annular track 101 to press the synthetic leather on the roller 4. The upward extension and retraction of the cylinders 103 drives the two upper guide rollers 102 to move upward, so that the annular track 101 is tensioned and the synthetic leather is tightly adhered to the roller 4. Furthermore, the cylinder 103 pulls the guide roller 102 to move vertically, thereby changing the height difference between the two upper guide rollers 102 and the two middle guide rollers 102, which in turn changes the tension of the annular track 101, making the pressing mechanism suitable for pressing synthetic leather of different thicknesses.

[0044] The length of the guide roller 102 is greater than or equal to the length of the roller 2. To ensure that the synthetic leather on the roller 2 can be effectively pressed, the length of the guide roller 102 is designed to be equal to or greater than the length of the roller 2. As a result, the annular track 101 on the guide roller 102 will make the synthetic leather on the roller 2 fit more tightly to the roller 4.

[0045] In the specific implementation process, it is worth noting that in order to ensure that the annular track 101 can be tensioned smoothly and without deviation, a high-precision automatic deviation correction device is configured on the two guide rollers 102 below. This perfectly solves the problem of deviation and instability during production, and a perfectly clear textured product can be obtained in the future.

[0046] Example 2

[0047] Depend on Figures 1-5 As can be seen, this embodiment adds a vacuum suction component to the first embodiment to achieve internal suction and external pressure on the synthetic leather, so that the synthetic leather adheres more tightly to the roller, thereby improving the quality and efficiency of synthetic leather texture processing.

[0048] A vacuum texturing device for synthetic leather includes a frame 1, on which a roller 2 is rotatably mounted. One end of the roller 2 is equipped with an inflation source fixed to the frame 1. The inflation source inflates an air bladder 5, with gas entering the air bladder 5 through an air outlet in the roller 2, causing the air bladder 5 to expand. This expansion of the air bladder 5 exerts an outward expansion force on the fan-shaped aluminum strips 3 on its outer surface. This outward expansion force allows the outer surface of the fan-shaped aluminum strips 3 to tightly adhere to the inner surface of the roller 4, overcoming the friction between the roller 4 and the fan-shaped aluminum strips 3, thus fixing the fan-shaped aluminum strips 3 to the roller 4. The other end of the roller 2 is equipped with a water cooling source fixed to the frame 1. The water cooling source is used to cool the fan-shaped aluminum strips 3, preventing them from overheating due to friction or other reasons, which could affect the quality of the synthetic leather.

[0049] A vacuum suction assembly is provided between the air source and the outer end face of the roller 2. The vacuum suction assembly is an external vacuum suction cup 10, which has a disc-shaped structure. Several suction holes 11 are evenly distributed on the vacuum suction cup 10. The suction holes 11 are connected to the air extraction channel 12 on the end face of the fan-shaped aluminum strip 3. A first fixing seat 13 is provided at the end of the vacuum suction cup 10 near the roller 2. The suction holes 11 of the vacuum suction cup 10 and the air extraction channel 12 on the end face of the fan-shaped aluminum strip 3 are connected through a sealed pipe. When the vacuum pump is started, the air inside the vacuum suction cup 10 and the fan-shaped aluminum strip 3 is extracted to form a negative pressure environment. Due to the strong air permeability of the roller 4, the synthetic leather surface is attracted and adhered tightly to the roller 4 under the action of negative pressure.

[0050] A copper brake pad 14 is installed between the vacuum suction cup 10 and the first fixed seat 13, serving as a buffer and sealing element. A second fixed seat 15 is fixedly connected to the first fixed seat 13, which is used to fix the copper brake pad 14 and the second fixed seat 15. The second fixed seat 15 is installed inside the roller 2 and rotatably connected to the inner wall of the roller 2. A bracket 16, sleeved on the outer end face of the roller 2, is fixedly connected to the first fixed seat 13. The bracket 16 has a sliding groove 17 that slides radially with the end face of the fan-shaped aluminum busbar 3. The dimensions of the sliding groove 17 match the end face dimensions of the fan-shaped aluminum busbar 3, ensuring the stability and flexibility of the fan-shaped aluminum busbar 3.

[0051] With the cooperation of the first fixed seat 13, the second fixed seat 15 and the copper brake pad 14, the roller 2 rotates when the drive motor is started, but the vacuum suction cup 10 and the external vacuum pump connected to the vacuum suction cup will not rotate together, ensuring normal operation and forming a vacuum negative pressure environment.

[0052] In the specific implementation process, it is worth noting that the end face of the fan-shaped aluminum busbar 3 is also provided with a water inlet channel 18 and a water outlet channel 19, with the water inlet channel 18 located above the water outlet channel 19 and connected to it. Two sets of water inlet channels 18 and water outlet channels 19 are provided, symmetrically distributed on both sides of the air extraction channel 12. An air extraction channel 12 is formed by splicing two adjacent fan-shaped aluminum busbars 3. The outer surface of the fan-shaped aluminum busbar 3 is provided with a textured groove 20, and an air extraction channel 21 is provided on the textured groove 20, which is connected to the air extraction channel 12.

[0053] Specifically, when using the vacuum suction device for pressing breathable materials and synthetic leather, the synthetic leather material is wrapped around the roller 4 to ensure the material is flat and wrinkle-free. The equipment is started, and the drive motor rotates the roller 2. The rotation of the roller 2 causes the cylindrical structure—the suction assembly—composed of several fan-shaped aluminum strips 3 to rotate. The rotation of the suction assembly causes the synthetic leather on the roller to rotate accordingly. Due to the placement of the first fixed seat 13, the copper brake pad 14, and the second fixed seat 15, the vacuum suction cup 10 remains fixed and does not rotate with the roller 2.

[0054] The vacuum pump is started, and the air inside the vacuum suction cup 10 is extracted through the pipeline to form a negative pressure environment. The suction hole 11 on the vacuum suction cup is connected to the suction channel 12 on the end face of the fan-shaped aluminum strip 3. The negative pressure is transmitted through the suction hole 11 to the suction channel 21 on the suction groove 20 on the fan-shaped aluminum strip 3. Because the roller 4 has strong air permeability, the synthetic leather is adsorbed and tightly attached to the roller 4 under the action of negative pressure.

[0055] Under negative pressure, the synthetic leather is pressed tightly onto the pattern on the roller 4, and the shape of the pattern is transferred to the surface of the synthetic leather to form the desired texture. The fan-shaped aluminum strips 3 of the suction assembly are pressed against the roller 4 under external force, further enhancing the clarity and consistency of the texture.

[0056] The water pump starts, delivering cooling water to the inlet channel 18 of the fan-shaped aluminum drain 3, and then discharging it through the outlet channel 19, carrying away the heat generated by the synthetic leather and equipment to prevent material deformation. The temperature of the cooling water is maintained below 10℃ to ensure that the synthetic leather quickly sets after the texture is formed, maintaining the stability and consistency of the texture.

[0057] After processing, the synthetic leather is output from the machine's outlet, at which point the desired texture has been formed on its surface. Further processing or direct use in product manufacturing can then be carried out as needed.

[0058] Vacuum embossing technology can precisely transfer patterns to the surface of synthetic leather, resulting in clear and consistent textures. It is suitable for synthetic leather materials of various shapes and sizes and can process complex textures. Automated production is achieved through continuous roller rotation or conveyor belt transport, improving production efficiency. Compared to traditional mechanical embossing, vacuum embossing causes less damage to the material and results in lower material waste.

[0059] When processing thicker or less deformable synthetic leather, cylinder 103 can be activated. Cylinder 103 extends and retracts upwards, causing the two guide rollers 102 to move upwards, thus tensioning the annular track 101 and tightly adhering the synthetic leather to the roller assembly 4. This tight adhesion between the synthetic leather and the roller assembly 4 results in a clearer and finer texture, thereby improving the overall quality of the product.

[0060] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0061] In conclusion, incorporating a pressing device into a vacuum texturing apparatus for synthetic leather is an effective means of improving the texture processing effect. Through proper design and implementation, a tight fit between the synthetic leather and the rollers can be ensured, thereby improving product quality and production efficiency.

Claims

1. A vacuum texturing device for a pressing mechanism of breathable materials and synthetic leather, comprising a frame (1), characterized in that: A roller (2) is rotatably mounted on the frame (1). A texturing assembly is provided on the outer wall of the roller (2). The texturing assembly is a cylindrical structure formed by several fan-shaped aluminum bars (3). A roller (4) is provided on the outer wall of the texturing assembly. Synthetic leather is wrapped around the roller (4). An airbag (5) is provided between the inner wall of the texturing assembly and the outer wall of the roller (2) for pushing the fan-shaped aluminum bars (3) to press against the roller (4). The air inlet of the airbag (5) is connected to the air outlet on the roller (2). A pressing mechanism is provided below the roller (2). The pressing mechanism includes an annular track (101) that cooperates with the roller (2) to press against the synthetic leather.

2. The vacuum suction device for pressing mechanisms of breathable materials and synthetic leather according to claim 1, characterized in that: The inner wall of the annular track (101) is provided with four guide rollers (102). The guide rollers (102) are mounted on the frame (1). The two guide rollers (102) on both sides of the inner wall of the annular track (101) are located above the two guide rollers (102) in the middle of the inner wall. The annular track (101) passes through the above four guide rollers (102) in a clockwise or counterclockwise direction and is tensioned in a U-shape with the outer wall of the roller (2).

3. The vacuum suction device for pressing mechanisms of breathable materials and synthetic leather according to claim 2, characterized in that: All four guide rollers (102) are rotatably connected to the frame (1), and the two upper guide rollers (102) are connected to cylinders (103) at both ends through sleeves. The cylinders (103) are fixed on the frame (1), and the sleeves are fixed on the output end of the cylinders (103). The sleeves are rotatably connected to the guide rollers (102) through bearings. The cylinders (103) are used to drive the guide rollers (102) to move upward, to tension the annular track (101), and to press the synthetic leather on the rollers (2).

4. The vacuum suction device for pressing mechanisms of breathable materials and synthetic leather according to claim 3, characterized in that: The length of the guide roller (102) is greater than or equal to the length of the roller (2).

5. The vacuum suction device for pressing mechanisms of breathable materials and synthetic leather according to claim 1, characterized in that: One end of the roller (2) is provided with an air source fixed on the frame (1), and the other end is provided with a water cooling source fixed on the frame (1). A vacuum suction assembly is provided between the air source and the outer end face of the roller (2).

6. The vacuum suction device for pressing mechanisms of breathable materials and synthetic leather according to claim 5, characterized in that: The vacuum suction assembly is an external vacuum suction cup (10). Several suction holes (11) are evenly distributed on the vacuum suction cup (10). The suction holes (11) are connected to the air extraction channel (12) on the end face of the fan-shaped aluminum busbar (3). A first fixed seat (13) is provided at one end of the vacuum suction cup (10) near the roller (2). A copper brake pad (14) is installed between the vacuum suction cup (10) and the first fixed seat (13). A second fixed seat (15) is fixedly connected to the first fixed seat (13). The second fixed seat (15) is installed inside the roller (2). A bracket (16) is fixedly connected to the first fixed seat (13) and sleeved on the outer end face of the roller (2). A sliding groove (17) is opened on the bracket (16) that slides radially with the end face of the fan-shaped aluminum busbar (3).

7. The vacuum suction device for pressing mechanisms of breathable materials and synthetic leather according to claim 6, characterized in that: The end face of the fan-shaped aluminum busbar (3) is also provided with a water inlet channel (18) and a water outlet channel (19), and the water inlet channel (18) is located above the water outlet channel (19), and the water inlet channel (18) and the water outlet channel (19) are connected.

8. The vacuum suction device for pressing mechanisms of breathable materials and synthetic leather according to claim 7, characterized in that: The water inlet channel (18) and water outlet channel (19) are provided in two sets and are symmetrically distributed on both sides of the air extraction channel (12).

9. The vacuum texturing device for the pressing mechanism of breathable materials and synthetic leather according to claim 6, characterized in that: An air extraction channel (12) is formed by splicing two adjacent fan-shaped aluminum bars (3).

10. The vacuum suction device for pressing mechanisms of breathable materials and synthetic leather according to claim 9, characterized in that: The outer surface of the fan-shaped aluminum strip (3) is provided with a textured groove (20), and an air suction channel (21) is provided on the textured groove (20). The air suction channel (21) is connected to the air extraction channel (12).

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