Composite structure of non-woven fabric

Abstract

The utility model relates to the technical field of non-woven fabric production, in particular to a non-woven fabric composite structure which comprises a base, a shell is installed at the top end of the base, an opening is formed in one end of the shell in a penetrating mode, a through groove is formed in the other end of the shell in a penetrating mode, and a pretreatment mechanism is further included and located at the opening of the shell. And the pretreatment mechanism comprises a lifting assembly and three sets of extrusion heating assemblies, and the lifting assembly is arranged at the top end of the base. According to the utility model, the pretreatment mechanism, the glue spraying mechanism and the pressing mechanism are matched with one another, and the included angle between a plurality of groups of non-woven fabrics before compounding can be changed by utilizing the lifting of the movable block and the close contact between the non-woven fabrics and the fixed heating roller as well as the movable heating roller; according to the non-woven fabric compounding device, the compounding angle of different non-woven fabric materials before compounding can be adjusted, and the glue spraying mechanism and the pressing mechanism are matched to complete the compounding operation of the non-woven fabric, so that the wide applicability of the non-woven fabric during compounding and the compounding quality of the non-woven fabric are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric production technology, and in particular to the composite structure of nonwoven fabric. Background Technology

[0002] Nonwoven fabric, also known as non-woven cloth, needle-punched cotton, or needle-punched nonwoven fabric, is a type of fabric that does not require traditional warp and weft weaving. It is typically made by bonding oriented or randomly arranged fibers together through friction, cohesion, adhesion, or other methods to form sheets, webs, or mats. Composite structures of nonwoven fabrics refer to combining two or more layers of nonwoven materials using specific processes to create a multi-layered composite material. This composite structure aims to enhance the performance of nonwoven fabrics to meet the material properties requirements of various fields.

[0003] In existing multilayer nonwoven fabric composite processes, a fixed composite angle is often used. While this simplifies the production process to some extent, it ignores the diversity and differences in properties of the nonwoven fabric materials themselves. As a result, the above composite process is difficult to meet the specific requirements of different nonwoven fabric materials for the composite angle in practical applications, thereby reducing the wide applicability and composite quality of nonwoven fabrics, resulting in poor practicality. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing multilayer nonwoven fabric composite processes are difficult to meet the specific requirements of different nonwoven fabric materials for the composite angle in practical applications, thereby reducing the wide applicability and composite quality of nonwoven fabrics. Therefore, this invention proposes a composite structure for nonwoven fabrics.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a non-woven composite structure, including a base, a shell mounted on the top of the base, an opening through one end of the shell, and a through groove through the other end of the shell, further comprising:

[0006] The pretreatment mechanism is located at the opening of the outer shell and includes a lifting assembly and three sets of extrusion heating assemblies. The lifting assembly is located at the top of the base and is used to lift the three sets of extrusion heating assemblies. The three sets of extrusion heating assemblies are arranged on the lifting assembly from top to bottom. The extrusion heating assemblies are used to perform clamping contact ironing preheating on a set of nonwoven fabrics before lamination.

[0007] The adhesive spraying mechanism and the pressing mechanism are located at the top of the base and inside the outer shell. The adhesive spraying mechanism is used to spray adhesive onto the upper surface of the two sets of non-woven fabrics located below. The pressing mechanism is used to press the three sets of non-woven fabrics together. The adhesive spraying mechanism is located between the pretreatment mechanism and the pressing mechanism.

[0008] Preferably, the lifting assembly includes two sets of adjusting frames, which are fixedly installed on the top of the base. The two sets of adjusting frames have a common moving groove on their opposite sides. Racks are installed on the inner walls of the two sets of moving grooves. The three sets of extrusion heating assemblies are slidably disposed in the two sets of moving grooves. Two sets of gears are installed on each of the three sets of extrusion heating assemblies. Two built-in motors are provided on the extrusion heating assemblies to drive the two sets of gears to rotate. The racks and the two sets of gears on the extrusion heating assemblies mesh with each other. A protective cover is installed on the top of the two sets of adjusting frames.

[0009] Preferably, the extrusion heating assembly includes two sets of moving blocks, which are slidably connected in two sets of moving grooves. Two sets of gears are installed on the side of each moving block facing the corresponding moving groove. Two sets of built-in motors are installed inside each moving block. A fixed heating roller is rotatably connected to the opposite side of each moving block. A sliding groove is provided on the opposite side of each moving block. A spring is installed on the bottom wall of each sliding groove. A slider is connected to each sliding groove through the spring. A moving heating roller is rotatably connected to the opposite side of each slider. The moving heating roller is located above the fixed heating roller. A set of non-woven fabric is disposed between the moving heating roller and the fixed heating roller.

[0010] Preferably, the glue spraying mechanism includes two sets of drive motors, which are respectively installed on the inner sidewalls of the outer casing. The output ends of the two sets of drive motors are fixedly connected to a first rotating frame. A second rotating frame is rotatably connected to the opposite side of the two sets of first rotating frames near the edge of the pressing mechanism. The sizes of the two sets of first rotating frames and the two sets of second rotating frames correspond to each other. A clearance groove is provided at the bottom of the two sets of second rotating frames. Two sets of electric push rods are symmetrically installed at the top of the base. A locking block is installed at the output end of the two sets of electric push rods. The top of the two sets of locking blocks is slidably connected to the two sets of clearance grooves. Spraying components are provided on the opposite side of the two sets of first rotating frames and the opposite side of the two sets of second rotating frames for spraying glue.

[0011] Preferably, the spraying components on the first and second rotating frames have the same structure. The spraying component on the first rotating frame includes a heating shell. The two ends of the heating shell are fixedly connected to opposite sides of the two sets of first rotating frames, and a glue shell is installed inside the heating shell. Multiple glue nozzles are installed on the glue shell. A through groove is provided at the bottom of the heating shell for the multiple glue nozzles to pass through. A liquid inlet pipe is installed at one end of the glue shell. An arc-shaped groove is provided on the inner wall of one side of the shell. One end of the liquid inlet pipe passes through the inner wall of the heating shell and the outer wall of a set of first rotating frames in sequence, and passes through the arc-shaped groove to connect with an external glue injection device.

[0012] Preferably, the pressing mechanism includes a fixed hot pressing roller group and two sets of electric telescopic rods. The fixed hot pressing roller group is installed at the top of the base, and the two sets of electric telescopic rods are symmetrically fixedly installed on the inner top wall of the outer shell. The output ends of the two sets of electric telescopic rods are jointly fixedly connected to a movable hot pressing roller group. The movable hot pressing roller group is located directly above the fixed hot pressing roller group, and the three sets of non-woven fabric are located between the movable hot pressing roller group and the fixed hot pressing roller group.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] 1. This utility model, through the cooperation of a pretreatment mechanism, an adhesive spraying mechanism, and a pressing mechanism, utilizes the lifting of a moving block and the close contact between the nonwoven fabric and the fixed and moving heating rollers to change the included angle between multiple sets of nonwoven fabrics before lamination. This allows for adjustment of the lamination angle for different nonwoven fabric materials before lamination. Combined with the adhesive spraying and pressing mechanisms, the lamination operation of the nonwoven fabrics is completed, effectively improving the versatility and quality of nonwoven fabric lamination. Furthermore, the fixed and moving heating rollers in the pretreatment mechanism iron and preheat the nonwoven fabric before lamination, further enhancing the lamination quality.

[0015] 2. This utility model, through the setting of the glue spraying mechanism, utilizes the rotation of the drive motor on the outer shell and the lifting of the output end of the electric push rod on the base to adjust the angle of the first rotating frame and the second rotating frame. This ensures that the glue nozzles on the first rotating frame and the second rotating frame are always directly above the corresponding non-woven fabric (i.e., the non-woven fabric below the glue nozzle), thereby effectively ensuring the uniform spraying of glue on the surface of the non-woven fabric. This results in higher bonding strength after the non-woven fabric is laminated, thus ensuring the overall structural stability of the laminated non-woven fabric. In other words, it effectively guarantees the quality of the non-woven fabric lamination. Furthermore, the setting of the heating shell effectively prevents the glue inside the shell from solidifying, thereby preventing the glue nozzle from becoming clogged due to glue solidification and ensuring the smooth operation of the glue spraying work. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of the nonwoven composite structure proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the nonwoven composite structure adjustment frame proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the toothed part of the composite structure of nonwoven fabric proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the nonwoven composite moving block proposed in this utility model.

[0020] Figure 5 This is a schematic diagram of the internal structure of the nonwoven composite structure proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the first and second rotating frames of the nonwoven fabric composite structure proposed in this utility model.

[0022] Figure 7 This is a schematic diagram of the internal structure of the nonwoven composite heating shell proposed in this utility model.

[0023] Figure 8 This is a schematic diagram of the nonwoven composite structure clip frame proposed in this utility model.

[0024] In the diagram: 1. Base; 2. Outer shell; 3. Adjustment frame; 4. Rack; 5. Moving block; 6. Gear; 7. Slider; 8. Fixed heating roller; 9. Moving heating roller; 10. Fixed hot pressing roller assembly; 11. Moving hot pressing roller assembly; 12. First rotating frame; 13. Second rotating frame; 14. Relief groove; 15. Clamping block; 16. Glue nozzle; 17. Heating shell. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1 to 5The composite structure of nonwoven fabric includes a base 1, with a shell 2 mounted on the top of the base 1. One end of the shell 2 has an opening, and the other end has a through groove. A pre-treatment mechanism is located at the top of the base 1, used to adjust the composite angle of three sets of nonwoven fabrics before lamination and to preheat and iron these three sets of nonwoven fabrics. The pre-treatment mechanism is located at the opening of the shell 2 and includes a lifting assembly and three sets of extrusion heating assemblies. The lifting assembly is located at the top of the base 1 and is used to raise and lower the three sets of extrusion heating assemblies. The three sets of extrusion heating assemblies are arranged sequentially from top to bottom on the lifting assembly. The extrusion heating assemblies are used to perform clamping contact ironing preheating on one set of nonwoven fabrics before lamination. The lifting assembly includes two sets of adjusting frames 3, which are fixedly mounted on the top of the base 1. A moving groove is opened on the opposite side of each of the two sets of adjusting frames 3. A rack 4 is installed on the inner wall of each of the two moving grooves. The three sets of extrusion heating assemblies are slidably arranged within the two moving grooves, and each of the three extrusion heating assemblies is equipped with a... Two sets of gears 6 are provided on the extrusion heating assembly, and two sets of built-in motors are respectively installed to drive the two sets of gears 6 to rotate. Two sets of racks 4 mesh with the two sets of gears 6 on the extrusion heating assembly. The top of the two sets of adjustment frames 3 are jointly installed with protective covers, which can provide certain protection for the three sets of extrusion heating assemblies. The extrusion heating assembly includes two sets of moving blocks 5, which are slidably connected in two sets of moving grooves. Two sets of gears 6 are respectively installed on the side of the two sets of moving blocks 5 facing the corresponding moving groove. Two sets of built-in motors are respectively installed inside the two sets of moving blocks 5. The opposite side of the two sets of moving blocks 5 is rotatably connected to a fixed heating roller 8, and each opposite side of the two sets of moving blocks 5 has a sliding groove. Springs are installed on the bottom wall of each of the two sets of sliding grooves, and each set of sliding grooves is connected to a slider 7 through the springs. The opposite side of the two sets of sliders 7 is rotatably connected to a moving heating roller 9, which is located above the fixed heating roller 8. A set of non-woven fabric is provided between the moving heating roller 9 and the fixed heating roller 8.

[0027] In the initial state, according to the requirements of the composite process, multiple sets of moving blocks 5 are placed in the moving slots on the adjusting frame 3 and slidably connected to the moving slots. A gear 6 is installed near the rack 4 on the moving block 5. The gear 6 is controlled by a built-in motor inside the moving block 5. By controlling the rotation of the gear 6 through the built-in motor, the moving block 5 can be raised and lowered to a suitable position inside the adjusting frame 3. Since both the fixed heating roller 8 and the moving heating roller 9 can rotate freely, and the moving heating roller 9 will approach the fixed heating roller 8 under the action of the spring in the sliding groove, the moving heating roller 9 and the fixed heating roller 8 will be in close contact with the nonwoven fabric between them. This allows the nonwoven fabric between them to be ironed flat and preheated, thereby improving the subsequent composite quality of the nonwoven fabric. Through the raising and lowering of the moving block 5 and the close contact between the nonwoven fabric and the fixed heating roller 8 and the moving heating roller 9, the included angle between the multiple sets of nonwoven fabrics before composite can be changed. That is, the composite angle can be adjusted for different nonwoven fabric materials before composite, thereby effectively improving the versatility and composite quality of nonwoven fabrics.

[0028] Reference Figures 5 to 8The base 1 has an adhesive spraying mechanism and a pressing mechanism at its top. Both mechanisms are located inside the outer shell 2. The adhesive spraying mechanism sprays adhesive onto the upper surfaces of the two sets of non-woven fabrics located below. The pressing mechanism presses the three sets of non-woven fabrics together (since there is a set of non-woven fabrics between the moving heating roller 9 and the fixed heating roller 8 in the extrusion heating assembly, and there are three sets of extrusion heating assemblies, there are also three sets of non-woven fabrics). The adhesive spraying mechanism is located between the pretreatment mechanism and the pressing mechanism. The adhesive spraying mechanism includes two sets of drive motors, which are respectively installed on the two inner side walls of the outer shell 2. The output ends of the two sets of drive motors are fixedly connected to the first rotating frame 12. The two sets of first rotating frames 12 are rotatably connected to the edge of the pressing mechanism on opposite sides. The size of the two sets of first rotating frames 12 corresponds to the size of the two sets of second rotating frames 13. The bottom ends of the two sets of second rotating frames 13 are provided with clearance grooves 14. The top of the base 1 is symmetrically equipped with Two sets of electric push rods are provided, each with a locking block 15 installed at its output end. The tops of the two locking blocks 15 are slidably connected to two sets of clearance grooves 14. Spraying components are provided on opposite sides of the two sets of first rotating frames 12 and opposite sides of the two sets of second rotating frames 13 for spraying glue. The spraying components on the first rotating frames 12 and the second rotating frames 13 have the same structure. The spraying component on the first rotating frame 12 includes a heating shell 17, with both ends of the heating shell 17 connected to the two sets of first rotating frames. 12 is fixedly connected to the opposite side, and a glue shell is installed inside the heating shell 17. Multiple glue nozzles 16 are installed on the glue shell. A through groove is opened through the bottom of the heating shell 17 for the multiple glue nozzles 16 to pass through. A liquid inlet pipe is installed at one end of the glue shell. An arc-shaped groove is provided through the inner wall of one side of the outer shell 2. One end of the liquid inlet pipe passes through the inner wall of the heating shell 17 and the outer wall of a set of first rotating frames 12 in sequence, and passes through the arc-shaped groove to connect with the external glue injection device. Glue is added into the glue shell through the external glue injection device.

[0029] Reference Figure 5 The pressing mechanism includes a fixed hot pressing roller group 10 and two sets of electric telescopic rods. The fixed hot pressing roller group 10 is installed at the top of the base 1. The two sets of electric telescopic rods are symmetrically fixed on the inner top wall of the outer shell 2, and the output ends of the two sets of electric telescopic rods are fixedly connected to a movable hot pressing roller group 11. The movable hot pressing roller group 11 is located directly above the fixed hot pressing roller group 10, and three sets of non-woven fabric are located between the movable hot pressing roller group 11 and the fixed hot pressing roller group 10.

[0030] The drive motor inside the outer casing 2 controls the free rotation of the first rotating frame 12, allowing the glue nozzles 16 between the two sets of first rotating frames 12 to move directly above the corresponding non-woven fabric. The glue nozzles 16 between the two sets of second rotating frames 13 are also moved directly above the corresponding non-woven fabric by the lifting and pulling action of the locking block 15 (which is lifted and lowered via an electric push rod). At this time, the glue nozzles 16 on the first rotating frame 12 and the second rotating frame 13 are always directly above the corresponding non-woven fabric (i.e., the non-woven fabric below the glue nozzle 16), effectively ensuring uniform spraying of glue onto the surface of the non-woven fabric, thus ensuring the non-woven fabric... The bonding strength after lamination is higher, thus ensuring the overall structural stability of the nonwoven fabric after lamination, which effectively guarantees the lamination quality of the nonwoven fabric. The setting of the heating shell 17 can effectively prevent the glue in the shell from solidifying, thereby preventing the glue nozzle 16 from being blocked due to glue solidification, thus ensuring the smooth operation of glue spraying. After the glue is applied to the upper surface of the nonwoven fabric, it will be pressed and bonded together by the fixed hot pressing roller group 10 and the moving hot pressing roller group 11 (at this time, the moving hot pressing roller group 11 moves down under the action of the electric telescopic rod), becoming a layer of composite fabric, and finally output to the outside through the through groove on the shell 2.

[0031] In this invention, in the initial state, according to the requirements of lamination, multiple sets of movable blocks 5 are placed in the movable grooves on the adjustment frame 3 and slidably connected to the movable grooves. A gear 6 is installed near the rack 4 on the movable block 5. The gear 6 is controlled by a built-in motor inside the movable block 5. By controlling the rotation of the gear 6 through the built-in motor, the movable block 5 can be raised and lowered to a suitable position inside the adjustment frame 3. Since both the fixed heating roller 8 and the movable heating roller 9 can rotate freely, and the movable heating roller 9 will approach the fixed heating roller 8 under the action of the spring in the sliding groove, that is, the movable heating roller 9 and the fixed heating roller 8 will be in close contact with the nonwoven fabric between them, so that the nonwoven fabric between them can be ironed flat and preheated, thereby improving the lamination quality of the nonwoven fabric in the subsequent process. Through the raising and lowering of the movable block 5 and the close contact between the nonwoven fabric and the fixed heating roller 8 and the movable heating roller 9, the included angle between the multiple sets of nonwoven fabrics before lamination can be changed, that is, the lamination angle can be adjusted for different nonwoven fabric materials before lamination, thereby effectively improving the wide applicability and lamination quality of nonwoven fabrics.

[0032] The drive motor inside the outer casing 2 controls the free rotation of the first rotating frame 12, allowing the glue nozzles 16 between the two sets of first rotating frames 12 to move directly above the corresponding non-woven fabric. The glue nozzles 16 between the two sets of second rotating frames 13 are also moved directly above the corresponding non-woven fabric by the lifting and pulling action of the locking block 15 (which is lifted and lowered via an electric push rod). At this time, the glue nozzles 16 on the first rotating frame 12 and the second rotating frame 13 are always directly above the corresponding non-woven fabric (i.e., the non-woven fabric below the glue nozzle 16), effectively ensuring uniform spraying of glue onto the surface of the non-woven fabric, thus ensuring the non-woven fabric... The bonding strength after lamination is higher, thus ensuring the overall structural stability of the nonwoven fabric after lamination, which effectively guarantees the lamination quality of the nonwoven fabric. The setting of the heating shell 17 can effectively prevent the glue in the shell from solidifying, thereby preventing the glue nozzle 16 from being blocked due to glue solidification, thus ensuring the smooth operation of glue spraying. After the glue is applied to the upper surface of the nonwoven fabric, it will be pressed and bonded together by the fixed hot pressing roller group 10 and the moving hot pressing roller group 11 (at this time, the moving hot pressing roller group 11 moves down under the action of the electric telescopic rod), becoming a layer of composite fabric, and finally output to the outside through the through groove on the shell 2.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite structure of nonwoven fabric, comprising a base (1), wherein a shell (2) is mounted on the top of the base (1), one end of the shell (2) has an opening through it, and the other end of the shell (2) has a through groove through it, characterized in that, Also includes: The pretreatment mechanism is located at the opening of the outer shell (2) and includes a lifting assembly and three sets of extrusion heating assemblies. The lifting assembly is set at the top of the base (1) and is used to enable the three sets of extrusion heating assemblies to be lifted. The three sets of extrusion heating assemblies are arranged on the lifting assembly from top to bottom. The extrusion heating assemblies are used to perform clamping contact ironing preheating on a set of nonwoven fabrics before lamination. The glue spraying mechanism and the pressing mechanism are located at the top of the base (1) and both are located inside the outer shell (2). The glue spraying mechanism is used to spray glue onto the upper surface of the two sets of non-woven fabrics located below. The pressing mechanism is used to press the three sets of non-woven fabrics together. The glue spraying mechanism is located between the pretreatment mechanism and the pressing mechanism.

2. The composite structure of nonwoven fabric according to claim 1, characterized in that, The lifting assembly includes two sets of adjustment frames (3), which are fixedly installed on the top of the base (1). The two sets of adjustment frames (3) have a common moving groove on opposite sides. The inner walls of the two sets of moving grooves are equipped with racks (4). The three sets of extrusion heating assemblies are slidably arranged in the two sets of moving grooves. The three sets of extrusion heating assemblies are equipped with two sets of gears (6). The extrusion heating assemblies are equipped with two sets of built-in motors that drive the two sets of gears (6) to rotate. The two sets of racks (4) mesh with the two sets of gears (6) on the extrusion heating assemblies. The tops of the two sets of adjustment frames (3) are equipped with a protective cover.

3. The composite structure of nonwoven fabric according to claim 2, characterized in that, The extrusion heating assembly includes two sets of moving blocks (5), which are slidably connected in two sets of moving slots. Two sets of gears (6) are installed on the side of the two sets of moving blocks (5) facing the corresponding moving slot. Two sets of built-in motors are installed inside the two sets of moving blocks (5). The opposite sides of the two sets of moving blocks (5) are rotatably connected to a fixed heating roller (8). The opposite sides of the two sets of moving blocks (5) are provided with sliding grooves. Springs are installed on the bottom walls of the sliding grooves. The sliding grooves are connected to sliders (7) through springs. The opposite sides of the two sets of sliders (7) are rotatably connected to a moving heating roller (9). The moving heating roller (9) is located above the fixed heating roller (8). A set of non-woven fabric is provided between the moving heating roller (9) and the fixed heating roller (8).

4. The composite structure of nonwoven fabric according to claim 1, characterized in that, The glue spraying mechanism includes two sets of drive motors. The two sets of drive motors are respectively installed on the two inner side walls of the outer shell (2). The output ends of the two sets of drive motors are fixedly connected to the first rotating frame (12). The two sets of first rotating frames (12) are rotatably connected to the edge of the pressing mechanism on the opposite side. The size of the two sets of first rotating frames (12) corresponds to the size of the two sets of second rotating frames (13). The bottom end of the two sets of second rotating frames (13) is provided with a clearance groove (14). The top of the base (1) is symmetrically equipped with two sets of electric push rods. The output ends of the two sets of electric push rods are equipped with snap-fit ​​blocks (15). The top ends of the two sets of snap-fit ​​blocks (15) are slidably connected to the two sets of clearance grooves (14). Spraying components are provided on the opposite side of the two sets of first rotating frames (12) and the opposite side of the two sets of second rotating frames (13) for spraying glue.

5. The composite structure of nonwoven fabric according to claim 4, characterized in that, The spraying components on the first rotating frame (12) and the second rotating frame (13) have the same structure. The spraying component on the first rotating frame (12) includes a heating shell (17). The two ends of the heating shell (17) are fixedly connected to the opposite side of the two sets of first rotating frames (12). A glue shell is installed inside the heating shell (17). Multiple glue nozzles (16) are installed on the glue shell. A through groove is opened at the bottom of the heating shell (17) for multiple glue nozzles (16) to pass through. A liquid inlet pipe is installed at one end of the glue shell. An arc groove is provided on the inner side wall of one side of the outer shell (2). One end of the liquid inlet pipe passes through the inner wall of the heating shell (17) and the outer wall of a set of first rotating frames (12) in sequence, and passes through the arc groove to connect with the glue injection device in the outside.

6. The composite structure of nonwoven fabric according to claim 1, characterized in that, The pressing mechanism includes a fixed hot pressing roller group (10) and two sets of electric telescopic rods. The fixed hot pressing roller group (10) is installed at the top of the base (1). The two sets of electric telescopic rods are symmetrically fixed on the inner top wall of the outer shell (2). The output ends of the two sets of electric telescopic rods are fixedly connected to a movable hot pressing roller group (11). The movable hot pressing roller group (11) is located directly above the fixed hot pressing roller group (10). The three sets of non-woven fabrics are located between the movable hot pressing roller group (11) and the fixed hot pressing roller group (10).

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