Breathable membrane automatic punching and ultrasonic welding equipment

Abstract

The present invention belongs to the field of industrial automation technology, and discloses an automatic punching and ultrasonic welding device for breathable membranes, including an equipment table, a breathable membrane unwinding mechanism and a breathable membrane winding mechanism are fixedly installed on the right side of the top of the equipment table from right to left in sequence, a breathable membrane cutting mechanism and a breathable membrane supporting mechanism located between the breathable membrane unwinding mechanism and the breathable membrane winding mechanism are fixedly installed on the top of the equipment table, a breathable membrane suction mechanism located on the back of the breathable membrane unwinding mechanism is fixedly installed on the top of the equipment table, and a slide rail located in front of the breathable membrane unwinding mechanism is fixedly installed on the top of the equipment table. The present invention effectively automatically punches the shape of the breathable membrane from the breathable membrane raw material, overcomes the deformation of the breathable membrane in the production and assembly process and the assembly positioning welding accuracy problems, solves the problems of low efficiency, slow production and poor quality of products, realizes automated production, and ensures product assembly quality and efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial automation, in particular to automatic punching and ultrasonic welding equipment for breathable films. Background Art

[0002] As a special material, breathable membrane is widely used in occasions that require gas exchange or permeability, such as medical equipment, personal protective equipment, and certain industrial applications. In order to ensure that the breathable membrane can effectively perform its functions and form a stable combination with other components (such as plastic parts), welding technology becomes a key link.

[0003] At present, the commonly used breathable membrane welding methods on the market mainly include hot pressing welding machine and ultrasonic welding. Hot pressing welding machine achieves welding by heating and applying pressure, but this method is often complicated to operate, requires precise control of temperature and pressure, and has relatively low welding efficiency. Ultrasonic welding uses the heat generated by high-frequency vibration to melt and combine materials. The operation is relatively simple and quick. You only need to place the plastic part on the welding head fixture and start the button to complete the welding process, which significantly improves production efficiency.

[0004] Although ultrasonic welding has shown obvious advantages in terms of cost-effectiveness and ease of operation, it also has certain limitations. In particular, the problem of connection strength. Since ultrasonic welding mainly relies on molecular friction between materials to generate heat to achieve bonding, it may be difficult to achieve the same connection strength as traditional welding methods in some cases. In addition, the stability and consistency of welding quality is also one of the challenges faced by ultrasonic welding technology.

[0005] In view of the above background, the present invention aims to further optimize the application of ultrasonic welding technology in the welding of breathable membranes. Summary of the invention

[0006] The object of the present invention is to provide an automatic punching and ultrasonic welding device for a breathable film to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: automatic punching and ultrasonic welding equipment for breathable membranes, comprising an equipment platform, characterized in that: a breathable membrane unwinding mechanism and a breathable membrane winding mechanism are fixedly installed on the right side of the top of the equipment platform from right to left in sequence, a breathable membrane cutting mechanism and a breathable membrane supporting mechanism located between the breathable membrane unwinding mechanism and the breathable membrane winding mechanism are fixedly installed on the top of the equipment platform, a breathable membrane suction mechanism located on the back of the breathable membrane unwinding mechanism is fixedly installed on the top of the equipment platform, a slide rail located in front of the breathable membrane unwinding mechanism is fixedly installed on the top of the equipment platform, a tray is slidably provided on the top of the slide rail, an ultrasonic welding mechanism located above the tray is fixedly installed on the top of the equipment platform, there are two trays, both of which are located on the slide rail, and an air permeability detection mechanism located above the left tray is fixedly installed on the top of the equipment platform;

[0008] The breathable film cutting mechanism includes a vertical plate fixedly mounted on the top of the mounting plate, a first cylinder fixedly mounted on the inner side of the vertical plate, a top block fixedly mounted on the top of the vertical plate, a bottom block located below the top block fixedly mounted on the top of the vertical plate, the top block and the bottom block are separated by a breathable film, a limiting hole is provided inside the bottom block, a cutting rod is fixedly mounted on the top of the first cylinder, limiting rods located on both sides of the cutting rod are fixedly mounted on the top of the output end of the first cylinder, and the outer surface of the limiting rod is elastically connected to a spring located between the bottom block and the output end of the first cylinder;

[0009] The breathable film supporting mechanism includes a rotating wheel rotatably mounted on the upper part of the vertical plate, and the number of the rotating wheels is two, which are distributed up and down and are in contact with each other by pressing, and a second motor is fixedly mounted on the back of the vertical plate, and the output end of the second motor is fixedly connected to the rotating wheel above;

[0010] The breathable membrane suction mechanism comprises a fixing plate fixedly mounted on the top of the equipment table, a pillar fixedly mounted on the top of the fixing plate, a horizontal linear module fixedly mounted on the top of the pillar, a vertical linear module fixedly mounted on the front end of the horizontal linear module, a fixing block fixedly mounted on the front end of the vertical linear module, a suction rod fixedly mounted on the front of the fixing block, and a suction nozzle fixedly mounted on the bottom end of the suction rod;

[0011] The ultrasonic welding mechanism comprises a vertical rod fixedly mounted on the top of the equipment platform, a second cylinder is fixedly mounted on the top of the vertical rod, a moving block is fixedly connected to the output end of the second cylinder, and an ultrasonic welder is fixedly mounted on the bottom end of the moving block;

[0012] The air permeability detection mechanism includes a third vertical plate fixedly mounted on the top of the equipment table, a third cylinder fixedly mounted on the top of the third vertical plate, a cross bar fixedly connected to the bottom output end of the third cylinder, and an air permeability detector fixedly mounted on the front of the cross bar.

[0013] Preferably, the breathable film unwinding mechanism comprises a mounting plate fixedly mounted on the top of the equipment platform, a first vertical plate fixedly mounted on the top of the mounting plate, an unwinding wheel rotatably mounted on the top of the front side of the first vertical plate, and a guide rod rotatably mounted on the front side of the first vertical plate;

[0014] Preferably, the breathable film winding mechanism comprises a second vertical plate fixedly mounted on the top of the mounting plate, a winding wheel is rotatably mounted on the top of the front side of the second vertical plate, a first motor is arranged on the back side of the second vertical plate, and an output end of the first motor is fixedly connected to the winding wheel;

[0015] The outer surfaces of the unwinding wheel and the winding wheel are wound with a breathable film, and the breathable film simultaneously wraps around the surface of the guide rod.

[0016] The beneficial effects of the present invention are as follows:

[0017] The beneficial effects of the present invention are remarkable. Through innovative design, the application of ultrasonic welding technology in breathable membrane welding is further optimized. It not only retains the advantages of ultrasonic welding, which is easy to operate and low in cost, but also effectively improves the problem of insufficient connection strength, and automatically detects the air permeability after welding is completed to ensure that the quality and performance of each welding point meet the expected standards. This technological innovation realizes the continuous automatic punching, automatic feeding, ultrasonic automatic welding and automatic air permeability detection of the breathable membrane, effectively overcomes the deformation of the breathable membrane during the production and assembly process and the assembly positioning welding accuracy problems, significantly improves the quality and efficiency of product assembly, solves the problems of low product efficiency, slow production and poor quality, and brings new solutions to the field of breathable membrane welding, which is expected to be widely used in multiple industries and fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the planar structure of the invention when viewed from above;

[0020] Figure 3 This is a schematic diagram of the structure of the breathable membrane mechanism of the present invention;

[0021] Figure 4 It is a schematic diagram of the combined structure of the breathable film unwinding mechanism and the breathable film winding mechanism of the present invention;

[0022] Figure 5 It is a schematic diagram of the internal structure of the breathable film cutting mechanism of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the slide rail of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the ultrasonic welding mechanism of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the air permeability detection mechanism of the present invention;

[0026] Fig. 9 For the present invention Figure 5 Schematic diagram of the local enlarged structure at point A in the middle.

[0027] In the figure: 1. Equipment table; 2. Breathable film unwinding mechanism; 3. Breathable film rewinding mechanism; 4. Breathable film cutting mechanism; 5. Breathable film supporting mechanism; 6. Breathable film suction mechanism; 7. Slide rail; 8. Tray; 9. Ultrasonic welding mechanism; 10. Air permeability detection mechanism; 11. Fixed plate; 12. Pillar; 13. Horizontal linear module; 14. Vertical linear module; 15. Fixed block; 16. Suction rod; 17. Suction nozzle; 18. Mounting plate; 19. First vertical plate; 20. Unwinding wheel; 21. Guide rod ; 22. Second vertical plate; 23. Winding wheel; 24. First motor; 25. Breathable membrane; 26. Rotating wheel; 27. Second motor; 28. Vertical plate; 29. ​​First cylinder; 30. Top block; 31. Bottom block; 32. Limiting hole; 33. Cutting rod; 34. Limiting rod; 35. Spring; 36. Vertical rod; 37. Second cylinder; 38. Moving block; 39. Ultrasonic welder; 40. Workpiece shell; 41. Third vertical plate; 42. Third cylinder; 43. Cross bar; 44. Air permeability detector. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figures 1 to 9As shown, an embodiment of the present invention provides an automatic punching and ultrasonic welding device for a breathable film, comprising an equipment platform 1, a breathable film unwinding mechanism 2 and a breathable film winding mechanism 3 are fixedly installed on the right side of the top of the equipment platform 1 from right to left in sequence, a breathable film cutting mechanism 4 and a breathable film supporting mechanism 5 located between the breathable film unwinding mechanism 2 and the breathable film winding mechanism 3 are fixedly installed on the top of the equipment platform 1, a breathable film suction mechanism 6 located on the back side of the breathable film unwinding mechanism 2 (the side away from the slide rail 7) is fixedly installed on the top of the equipment platform 1, a slide rail 7 located in front of the breathable film unwinding mechanism 2 is fixedly installed on the top of the equipment platform 1, a tray 8 is slidably provided on the top of the slide rail 7, and the tray 8 has a conventional driving and positioning locking device built in; an ultrasonic welding mechanism 9 located above the tray 8 is fixedly installed on the top of the equipment platform 1, and there are two trays 8, both of which are located on the slide rail 7; a permeability detection mechanism 10 located above the left tray 8 (the center of the device) is fixedly installed on the top of the equipment platform 1.

[0030] After the staff fixes the workpiece shell 40 at a suitable position on the tray 8, the tray 8 is moved to the right below the ultrasonic welding mechanism 9 through the driving device of the tray 8; then the breathable membrane supporting mechanism 5, the breathable membrane unwinding mechanism 2 and the breathable membrane winding mechanism 3 are started, and the breathable membrane 25 is dragged by the breathable membrane supporting mechanism 5, so that the breathable membrane unwinding mechanism 2 is unwinding and rotating. Due to the winding rotation of the breathable membrane winding mechanism 3, the breathable membrane 25 passing through the breathable membrane supporting mechanism 5 will be wound on the outer surface of the breathable membrane winding mechanism 3; the rotation of the breathable membrane supporting mechanism 5 is intermittent, and each rotation drives the breathable membrane 25 to move After moving a certain distance, it stops, and at this time, the breathable film cutting mechanism 4 is started. Since the breathable film cutting mechanism 4 performs a cutting operation on the breathable film 25, the breathable film suction mechanism 6 is started, and the breathable film 25 disc after cutting is adsorbed to the top of the tray 8 by the breathable film suction mechanism 6, and then the breathable film 25 on the upper part of the tray 8 is ultrasonically welded to the tray 8 through the ultrasonic welding mechanism 9; finally, the tray 8 is moved on the slide rail 7 to the bottom of the air permeability detection mechanism 10 through the slide rail 7, and the final air permeability detection is performed on the tray 8 by the air permeability detection mechanism 10, and then it is transported to the next processing station for further processing.

[0031] The breathable film unwinding mechanism 2 includes a mounting plate 18 fixedly mounted on the top of the equipment platform 1, a first vertical plate 19 fixedly mounted on the top of the mounting plate 18, an unwinding wheel 20 rotatably mounted on the top of the front side (the side close to the ultrasonic welding mechanism 9), and a guide rod 21 rotatably mounted on the front side (the side close to the ultrasonic welding mechanism 9) of the first vertical plate 19;

[0032] Among them, the breathable film winding mechanism 3 includes a second vertical plate 22 fixedly installed on the top of the mounting plate 18, a winding wheel 23 is rotatably installed on the top of the front side (the side close to the slide rail 7) of the second vertical plate 22, and a first motor 24 is arranged on the back side (the side away from the slide rail 7) of the second vertical plate 22, and the output end of the first motor 24 is fixedly connected to the winding wheel 23; the outer surfaces of the unwinding wheel 20 and the winding wheel 23 are wound with a breathable film 25, and the breathable film 25 simultaneously bypasses the surface of the guide rod 21.

[0033] The breathable membrane supporting mechanism 5 is started, and the first motor 24 is driven by the breathable membrane supporting mechanism 5 to move a certain distance. At this time, the breathable membrane 25 on the surface of the unwinding wheel 20 will be unwound outward as the breathable membrane 25 rotates counterclockwise, and then the movement direction of the breathable membrane 25 is changed by the guide rod 21, and then the operation of the first motor 24 will drive the winding wheel 23 to rotate, and the winding wheel 23 rotates clockwise, thereby winding the breathable membrane 25.

[0034] Among them, the breathable membrane cutting mechanism 4 includes a vertical plate 28 fixedly installed on the top of the mounting plate 18, a first cylinder 29 fixedly installed on the inner side of the vertical plate 28, a top block 30 fixedly installed on the top of the vertical plate 28, and a hole is opened above the top block 30; a bottom block 31 located below the top block 30 is fixedly installed on the top of the vertical plate 28, the top block 30 and the bottom block 31 are separated by the breathable membrane 25, and a limiting hole 32 is opened inside the bottom block 31, a cutting rod 33 is fixedly installed on the top of the first cylinder 29, and a limiting rod 34 located on both sides of the cutting rod 33 is fixedly installed on the top of the output end of the first cylinder 29, and the outer surface of the limiting rod 34 is elastically connected to a spring 35 located between the bottom block 31 and the output end of the first cylinder 29.

[0035] When the breathable membrane supporting mechanism 5 moves to a suitable position, the first cylinder 29 is started. Due to the operation of the first cylinder 29, the cutting rod 33 and the limiting rod 34 are pushed upward, and the top of the cutting rod 33 enters into the limiting hole 32, and continues to move until it contacts the breathable membrane 25 between the top block 30 and the bottom block 31, and performs a cutting operation on it. The cut material continues to move upward with the cutting rod 33 to the hole inside the top block 30, and is adsorbed away by the breathable membrane suction mechanism 6, and then the cutting rod 33 is reset.

[0036] Due to the limiting effect of the limiting rod 34, the lifting and lowering movement of the cutting rod 33 can be made more stable to avoid deviation. During the lifting and lowering movement of the limiting rod 34, the spring 35 can prevent the output end of the first cylinder 29 from colliding violently with the bottom block 31.

[0037] Among them, the breathable membrane supporting mechanism 5 includes a rotating wheel 26 rotatably installed on the upper part of the vertical plate 28. There are two rotating wheels 26, which are distributed up and down and squeeze and contact each other. A second motor 27 is fixedly installed on the back side of the vertical plate 28 (the side close to the breathable membrane mechanism 6), and the output end of the second motor 27 is fixedly connected to the rotating wheel 26 above.

[0038] The operation of the second motor 27 will drive the upper rotating wheel 26 to rotate, and the upper rotating wheel 26 will drive the lower rotating wheel 26 to rotate in the opposite direction, thereby carrying and moving the breathable membrane 25 between the two, so as to continuously perform the cutting operation through the cutting rod 33.

[0039] Among them, the breathable membrane suction mechanism 6 includes a fixed plate 11 fixedly installed on the top of the equipment table 1, a pillar 12 is fixedly installed on the top of the fixed plate 11, a horizontal linear module 13 is fixedly installed on the top of the pillar 12, a vertical linear module 14 is fixedly installed at the front end of the horizontal linear module 13 (the side close to the breathable membrane unwinding mechanism 2), a fixed block 15 is fixedly installed at the front end of the vertical linear module 14 (the side away from the horizontal linear module 13), a suction rod 16 is fixedly installed on the front side of the fixed block 15 (the side close to the slide rail 7), and a suction nozzle 17 is fixedly installed at the bottom end of the suction rod 16.

[0040] When the cutting rod 33 cuts the air-permeable film 25 between the top block 30 and the bottom block 31, the air-permeable film 25 disc is pushed to the highest point by the cutting rod 33. At this time, the horizontal linear module 13 is started. Since the operation of the horizontal linear module 13 will drive the suction rod 16 to move forward through the vertical linear module 14, when it moves to the same vertical position as the air-permeable film 25 disc, the vertical linear module 14 drives the fixed block 15 and the suction rod 16 to move downward together. The top of the suction rod 16 is connected to the air pipe.

[0041] The suction nozzle 17 penetrates into the hole on the surface of the top block 30 to contact the air-permeable membrane 25 disc, and then adsorbs the air-permeable membrane 25 disc through negative pressure, and then places the air-permeable membrane 25 disc on the surface of the workpiece shell 40 through the vertical linear module 14 and the horizontal linear module 13, completing an action cycle.

[0042] The ultrasonic welding mechanism 9 includes a vertical rod 36 fixedly mounted on the top of the equipment platform 1, a second cylinder 37 fixedly mounted on the top of the vertical rod 36, a moving block 38 fixedly connected to the output end of the second cylinder 37, and an ultrasonic welder 39 fixedly mounted on the bottom end of the moving block 38. The ultrasonic welder 39 and the gas permeable membrane 25 disc are at the same longitudinal position;

[0043] The breathable membrane 25 disc is placed on the workpiece shell 40 for welding through the suction nozzle 17 in the breathable membrane suction mechanism 6, and the second cylinder 37 is started at this time. Due to the operation of the second cylinder 37, the moving block 38 and the ultrasonic welder 39 will be driven to move downward together, so that the bottom end of the ultrasonic welder 39 contacts the breathable membrane 25 disc and presses it down, and then the ultrasonic welder 39 is started to perform ultrasonic welding on it.

[0044] The air permeability detection mechanism 10 includes a third vertical plate 41 fixedly mounted on the top of the equipment table 1, a third cylinder 42 fixedly mounted on the top of the third vertical plate 41, a crossbar 43 fixedly connected to the bottom output end of the third cylinder 42, and an air permeability detector 44 fixedly mounted on the front side of the crossbar 43 (the side close to the tray 8). The top of the air permeability detector 44 is connected to the external air pipe;

[0045] After ultrasonic welding, the workpiece shell 40 will move on the slide rail 7 to the bottom of the air permeability detection mechanism 10 under the action of the tray 8 and then stop. At this time, the third cylinder 42 is started. Due to the operation of the third cylinder 42, the cross bar 43 and the air permeability detector 44 will be driven to move downward together, and then the air permeability detector 44 will contact with the air permeable membrane 25 disc and press it down, and the air permeability detection operation will be performed on it through the air permeability detector 44.

[0046] Working principle and usage process:

[0047] After the staff fixes the workpiece shell 40 at a suitable position on the tray 8, the tray 8 is moved to the right below the ultrasonic welding mechanism 9 through the driving device of the tray 8; then the breathable membrane supporting mechanism 5, the breathable membrane unwinding mechanism 2 and the breathable membrane winding mechanism 3 are started, and the breathable membrane 25 is dragged by the breathable membrane supporting mechanism 5, so that the breathable membrane unwinding mechanism 2 is unwinding and rotating. Due to the winding rotation of the breathable membrane winding mechanism 3, the breathable membrane 25 passing through the breathable membrane supporting mechanism 5 will be wound on the outer surface of the breathable membrane winding mechanism 3; the rotation of the breathable membrane supporting mechanism 5 is intermittent, and each rotation drives the breathable membrane 25 to move After moving a certain distance, it stops, and at this time, the breathable film cutting mechanism 4 is started. Since the breathable film cutting mechanism 4 performs a cutting operation on the breathable film 25, the breathable film suction mechanism 6 is started, and the breathable film 25 disc after cutting is adsorbed to the top of the tray 8 by the breathable film suction mechanism 6, and then the breathable film 25 on the upper part of the tray 8 is ultrasonically welded to the tray 8 through the ultrasonic welding mechanism 9; finally, the tray 8 is moved on the slide rail 7 to the bottom of the air permeability detection mechanism 10 through the slide rail 7, and the final air permeability detection is performed on the tray 8 by the air permeability detection mechanism 10, and then it is transported to the next processing station for further processing.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic punching and ultrasonic welding device for a breathable film, comprising an equipment table (1), characterized in that: A breathable film unwinding mechanism (2) and a breathable film winding mechanism (3) are fixedly installed on the right side of the top of the equipment platform (1) from right to left in sequence; a breathable film cutting mechanism (4) and a breathable film supporting mechanism (5) are fixedly installed on the top of the equipment platform (1) and are located between the breathable film unwinding mechanism (2) and the breathable film winding mechanism (3); a breathable film suction mechanism (6) is fixedly installed on the top of the equipment platform (1) and is located on the back of the breathable film unwinding mechanism (2); a slide rail (7) is fixedly installed on the top of the equipment platform (1) and is located in front of the breathable film unwinding mechanism (2); a tray (8) is slidably provided on the top of the slide rail (7); an ultrasonic welding mechanism (9) is fixedly installed on the top of the equipment platform (1) and is located above the tray (8); there are two trays (8) both located on the slide rail (7); and a permeability detection mechanism (10) is fixedly installed on the top of the equipment platform (1) and is located above the left tray (8); The air-permeable film cutting mechanism (4) comprises a vertical plate (28) fixedly mounted on the top of the mounting plate (18), a first cylinder (29) fixedly mounted on the inner side of the vertical plate (28), a top block (30) fixedly mounted on the top of the vertical plate (28), a bottom block (31) located below the top block (30) fixedly mounted on the top of the vertical plate (28), the top block (30) and the bottom block (31) are separated by an air-permeable film (25), a limiting hole (32) is provided inside the bottom block (31), a cutting rod (33) fixedly mounted on the top of the first cylinder (29), limiting rods (34) located on both sides of the cutting rod (33) fixedly mounted on the top of the output end of the first cylinder (29), and the outer surface of the limiting rod (34) is elastically connected to a spring (35) located between the bottom block (31) and the output end of the first cylinder (29); The breathable film supporting mechanism (5) comprises a rotating wheel (26) rotatably mounted on the upper part of the vertical plate (28), wherein the number of the rotating wheels (26) is two, which are arranged vertically and press-contact each other, and a second motor (27) is fixedly mounted on the back of the vertical plate (28), and the output end of the second motor (27) is fixedly connected to the rotating wheel (26) at the top; The breathable membrane mechanism (6) comprises a fixed plate (11) fixedly mounted on the top of the equipment platform (1), a pillar (12) fixedly mounted on the top of the fixed plate (11), a horizontal linear module (13) fixedly mounted on the top of the pillar (12), a vertical linear module (14) fixedly mounted on the front end of the horizontal linear module (13), a fixed block (15) fixedly mounted on the front end of the vertical linear module (14), a suction rod (16) fixedly mounted on the front of the fixed block (15), and a suction nozzle (17) fixedly mounted on the bottom end of the suction rod (16); The ultrasonic welding mechanism (9) comprises a vertical rod (36) fixedly mounted on the top of the equipment platform (1); a second cylinder (37) is fixedly mounted on the top of the vertical rod (36); a moving block (38) is fixedly connected to the output end of the second cylinder (37); and an ultrasonic welder (39) is fixedly mounted on the bottom end of the moving block (38); The air permeability detection mechanism (10) comprises a third vertical plate (41) fixedly mounted on the top of the equipment platform (1); a third cylinder (42) is fixedly mounted on the top of the third vertical plate (41); a cross bar (43) is fixedly connected to the bottom output end of the third cylinder (42); and an air permeability detector (44) is fixedly mounted on the front of the cross bar (43).

2. The breathable film automatic punching and ultrasonic welding equipment according to claim 1 is characterized in that: The breathable film unwinding mechanism (2) comprises a mounting plate (18) fixedly mounted on the top of the equipment platform (1), a first vertical plate (19) fixedly mounted on the top of the mounting plate (18), an unwinding wheel (20) rotatably mounted on the top of the front face of the first vertical plate (19), and a guide rod (21) rotatably mounted on the front face of the first vertical plate (19).

3. The breathable film automatic punching and ultrasonic welding equipment according to claim 1 is characterized in that: The breathable film winding mechanism (3) comprises a second vertical plate (22) fixedly mounted on the top of the mounting plate (18); a winding wheel (23) is rotatably mounted on the top of the front side of the second vertical plate (22); a first motor (24) is arranged on the back side of the second vertical plate (22); an output end of the first motor (24) is fixedly connected to the winding wheel (23); a breathable film (25) is wound around the outer surfaces of the winding wheel (23) and the unwinding wheel (20); and the breathable film (25) simultaneously passes around the surface of the guide rod (21).

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