Batch nonwoven punching method and puncher

Abstract

The application discloses a batch non-woven fabric punching method and a punching machine, wherein the batch non-woven fabrics are placed on a workbench and a film is covered on the batch non-woven fabrics and the workbench, air between the film and the workbench is pumped out, the film and the punching plate press the non-woven fabrics, and the non-woven fabrics cannot be lifted up even if a hollow drill bit is lifted up after passing through the film and the non-woven fabrics because the film is also covered on the workbench, so that the inner side and the outer side of the punching position of the batch non-woven fabrics are always in a pressed state during the punching process, the hollow position and shape of the hundreds of stacked non-woven fabrics are kept consistent, the punching precision on the non-woven fabrics is improved, the punching efficiency on the non-woven fabrics is improved, the hollow on the non-woven fabrics is more regular, the circular waste generated by the punching of the non-woven fabrics cannot block the hollow drill bit, and the accuracy of the punching on the batch non-woven fabrics is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of nonwoven fabric perforation, and more particularly to a method and machine for batch perforation of nonwoven fabrics. Background Technology

[0002] In existing technologies, perforation of nonwoven fabric is usually achieved by using a hot rod to burn holes into the nonwoven fabric. Moreover, the quantity processed at one time is relatively small. The addition of molten fabric can release a large amount of delays, affecting the working environment. After cooling, the molten fabric may stick to other fabrics, resulting in waste and inconvenience in handling. There are also problems such as uneven hole sizes on nonwoven fabric perforated in the same time.

[0003] Patent document CN115284378A discloses a nonwoven fabric processing and punching device, including a base, a vertical plate fixedly connected to the inner wall of the base, a top plate fixedly connected to the inner wall of the vertical plate, an electric push rod fixedly connected to the inner wall of the top plate, a horizontal plate fixedly connected to the movable end of the electric push rod, multiple cylindrical blocks provided on the inner wall of the horizontal plate, an upper electromagnet embedded in the inner wall of each cylindrical block, a punching head slidably connected to the inner wall of each cylindrical block, a first permanent magnet embedded in the inner wall of the punching head, a conveying plate fixedly connected to the inner wall of the base, and multiple lower cylinders fixedly connected through the inner wall of the conveying plate, each lower cylinder embedded in the inner wall of the lower cylinder. By setting up structures such as magnetic pressure blocks, conductive strips, and magnetic blocks, the magnetic pressure blocks and magnetic blocks respectively abut against the upper and lower sides of the nonwoven fabric, so that multiple magnetic pressure blocks and multiple magnetic blocks jointly stretch the nonwoven fabric, avoiding punching holes in the nonwoven fabric when it is wrinkled.

[0004] The existing technology has the following disadvantages: 1) The clamping blocks and magnetic blocks in the existing technology can only clamp the edges of the non-woven fabric, while the punching operation of the non-woven fabric is usually carried out in the middle position. Since the non-woven fabric is soft, it is inevitable that after the punching head completes the punching and moves upward, it will lift the non-woven fabric at the punching position. Thus, after multiple punchings, the non-woven fabric still has the risk of wrinkles; 2) Using a punching head to punch the non-woven fabric will not only damage the structure of the non-woven fabric itself, but also the amount of non-woven fabric processed by the equipment in the existing technology is relatively small; 3) In the existing technology, the punching position of the equipment is relatively simple and lacks flexibility. Summary of the Invention

[0005] To address the problems in the prior art, the present invention aims to provide a batch nonwoven fabric punching method and punching machine, which enables batch punching of nonwoven fabrics and allows punching at various locations on the nonwoven fabric. During the punching process, the nonwoven fabric remains flat at all locations, greatly improving the punching efficiency and accuracy, and ensuring the yield rate of nonwoven fabric production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A batch nonwoven fabric punching method, the specific steps are as follows: Step 1) Place a pattern board that matches the outline of the nonwoven fabric to be cut on the workbench, insert multiple positioning pins on the workbench, wherein the multiple positioning pins are evenly arranged around the pattern board, and the multiple positioning pins abut against the side of the pattern board.

[0008] Step 2) Place the stacked multi-layer nonwoven fabric on the pattern board, with the nonwoven fabric located inside multiple positioning pins and the multiple positioning pins abutting against the sides of the nonwoven fabric.

[0009] Step 3) Cover the workbench and non-woven fabric with the film, and use a vacuum device to evacuate the space between the film and the workbench, so that the film is pressed tightly onto the workbench and non-woven fabric, and the film, non-woven fabric and workbench are fixed into a whole.

[0010] Step 4) The driving device drives the punching mechanism to move above the non-woven fabric. The punching mechanism moves down, and the clamping plate of the punching mechanism clamps the outer part of the non-woven fabric at the position to be punched. The pressure head of the punching mechanism clamps the inner part of the non-woven fabric at the position to be punched. The hollow drill bit of the punching mechanism rotates and moves downward, extending out from the through hole in the clamping plate to punch a hole in the non-woven fabric at the position to be punched. The pressure head is located inside the hollow drill bit.

[0011] Step 5) After punching several non-woven fabrics, turn off the vacuum device, remove the film from the worktable, and then take out several non-woven fabrics.

[0012] Preferably, the workbench is provided with multiple air extraction holes, which are connected to a vacuum device, and the positioning pin is plugged into the air extraction holes.

[0013] Preferably, the worktable and the drive device are mounted on the same mounting plate.

[0014] Preferably, a rotating shaft is rotatably mounted below the mounting plate, and a film roll is provided on the rotating shaft. In step 3), the film on the film roll is pulled out from below the worktable and covers the worktable.

[0015] Preferably, the driving device includes a lateral driving mechanism for driving the hollow drill bit to move left and right, a longitudinal driving mechanism for driving the hollow drill bit to move forward and backward, a lifting driving mechanism for driving the hollow drill bit to move up and down, and a rotation driving mechanism for driving the hollow drill bit to rotate.

[0016] Preferably, the longitudinal drive mechanism and the worktable are mounted on the same mounting plate, the transverse drive mechanism is mounted on the longitudinal drive mechanism, the lifting drive mechanism is mounted on the transverse drive mechanism, the rotation drive mechanism is mounted on the transverse drive mechanism, and the hollow drill bit is mounted on the rotation drive mechanism.

[0017] Preferably, the pressure head is mounted on the inner side of the hollow drill bit in a liftable manner, and the clamping plate is mounted on the outer side of the hollow drill bit in a liftable manner.

[0018] Preferably, the sample board is an airtight paper board.

[0019] Preferably, the worktable, the hollow drill bit, and the drive mechanism are all installed inside the housing, which has a forward-opening structure, and a laterally extending grating is provided at the front end of the housing.

[0020] A punching machine, employing the aforementioned batch nonwoven fabric punching method, comprises a worktable, positioning pins, a film, a hollow drill bit, and a drive mechanism.

[0021] The beneficial effects of the technical solution of this invention are as follows: Multiple positioning pins flexibly enclose a space similar in shape to the non-woven fabric, making it suitable for processing non-woven fabrics of different shapes and specifications; and because the positioning pins are vertically arranged, the overlap of the stacked non-woven fabrics is higher, ensuring that the positions of the holes on each piece of non-woven fabric remain consistent; in this invention, the vacuum device removes the air between the film and the worktable, causing the film and the pattern plate to tighten the non-woven fabric, and since the film is also covered on the worktable, even when a hollow drill bit is penetrating... Even after lifting through the film and nonwoven fabric, the stacked nonwoven fabric cannot be lifted. This ensures that during the punching process of batch nonwoven fabric, the inner and outer sides of the punching location are always pressed together, keeping the position and shape of the holes on the hundreds of stacked nonwoven fabrics consistent. This improves the punching accuracy and efficiency of nonwoven fabric, resulting in more regular holes. Furthermore, the circular waste generated from punching the nonwoven fabric will not clog the hollow drill bit, effectively improving the accuracy of punching in batches of nonwoven fabric. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the drilling machine in this invention;

[0023] Figure 2 Schematic diagram of the connection structure of the worktable, drive mechanism and hollow drill bit Figure 1 ;

[0024] Figure 3 Schematic diagram of the connection structure of the worktable, drive mechanism and hollow drill bit Figure 2 ;

[0025] Figure 4 Schematic diagram of the connection structure between the lifting assembly and the hollow drill bit Figure 1 ;

[0026] Figure 5Schematic diagram of the connection structure between the lifting assembly and the hollow drill bit Figure 2 ;

[0027] Figure 6 This is a structural schematic diagram of the positioning plate;

[0028] Figure 7 This is a structural diagram of the fixed plate.

[0029] Reference numerals: 1. Housing; 10. Grating; 2. Worktable; 3. Longitudinal drive mechanism; 30. First motor; 301. Drive shaft; 31. Support frame; 32. Longitudinal drive bracket; 33. Longitudinal drive pulley; 34. Longitudinal drive belt; 35. Longitudinal slide rail; 36. Longitudinal slider; 37. Longitudinal drive seat; 38. Pressure plate; 39. First chain plate; 4. Transverse drive mechanism; 41. Support plate; 42. Connecting plate; 43. Lead screw; 44. Transverse slide rail; 45. Transverse slider; 46. Motor mounting bracket; 5 51. Lifting cylinder; 6. Lifting drive plate; 7. Worktable; 61. Support leg; 62. Air extraction plate; 621. Opening; 622. Second air extraction hole; 623. First connecting seat; 624. Second connecting seat; 63. Positioning plate; 632. First air extraction hole; 7. Film coating mechanism; 71. Hook; 72. Rotating shaft; 73. Film; 8. Positioning pin; 9. Hollow drill bit; 91. Mounting bracket; 92. Third motor; 93. Discharge rack; 94. Discharge drive component; 95. Press head; 96. Pressing plate; 97. Guide rod. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless explicitly defined otherwise.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] Example 1

[0036] A method for batch perforation of nonwoven fabrics, the specific steps of which are as follows:

[0037] Step 1) Place a pattern board on the workbench 6 that matches the outline of the non-woven fabric to be cut, and insert multiple positioning pins on the workbench 6. The multiple positioning pins are evenly arranged around the pattern board, and the multiple positioning pins 8 abut against the side of the pattern board.

[0038] Step 2) Place the stacked multi-layer nonwoven fabric on the pattern board, with the nonwoven fabric located inside the plurality of positioning pins 8, and the plurality of positioning pins 8 abutting against the side of the nonwoven fabric.

[0039] Step 3) Cover the workbench 6 and the non-woven fabric with the film. The vacuum device will evacuate the space between the film 73 and the workbench 6, so that the film 73 is pressed tightly onto the workbench 6 and the non-woven fabric, and the film 73, the non-woven fabric and the workbench 6 are fixed into a whole.

[0040] Step 4) The driving device drives the punching mechanism to move above the non-woven fabric. The punching mechanism moves down, and the clamping plate of the punching mechanism clamps the outer part of the non-woven fabric at the position to be punched. The pressure head of the punching mechanism clamps the inner part of the non-woven fabric at the position to be punched. The hollow drill bit 9 of the punching mechanism rotates and moves downward, extending out from the through hole in the clamping plate to punch a hole in the non-woven fabric at the position to be punched. The pressure head is located inside the hollow drill bit.

[0041] Step 5) After punching several nonwoven fabrics, turn off the vacuum device, remove the film 73 from the worktable 6, and then take out several nonwoven fabrics.

[0042] In the above method, multiple positioning pins 8 flexibly enclose a space similar in shape to the nonwoven fabric, making it suitable for processing nonwoven fabrics of different shapes and specifications. Furthermore, since the positioning pins 8 are vertically arranged, the overlap of the stacked nonwoven fabrics is higher, ensuring that the position of the holes on each piece of nonwoven fabric remains consistent. In this invention, the vacuum device extracts the air between the film 73 and the worktable 6, causing the film 73 and the pattern plate to tighten the nonwoven fabric. Simultaneously, since the film 73 is also covered on the worktable 6, even if the hollow drill bit 9 is lifted after passing through the film 73 and the nonwoven fabric, it cannot lift the stacked nonwoven fabrics. This ensures that the batch of nonwoven fabrics remains compressed during the punching process, maintaining consistency in the position and shape of the holes on any stacked nonwoven fabric. This improves the punching accuracy and efficiency of nonwoven fabric punching, resulting in more regular holes on the nonwoven fabric.

[0043] like Figure 1 As shown, a punching machine applying the above-mentioned batch nonwoven fabric punching method includes a housing 1 and a worktable 6, positioning pins 8, a film 73, a hollow drill bit 9, and a drive mechanism installed inside the housing 1. The housing 1 has an open structure with the opening facing forward. A mounting plate 2 is fixed in the middle of the housing 1, and the worktable 6 and drive mechanism are both mounted on the mounting plate 2. This ensures that the worktable 6 and drive mechanism are on the same plane, facilitating the assembly of the punching machine and the positioning of each component. A laterally extending grating 10 is provided at the front end of the housing 1. The grating 10 does not affect the worker's punching progress or the status of the punching machine, while providing a good warning effect.

[0044] like Figure 1-3 As shown, in this embodiment, the workbench 6 includes a positioning plate 63, an air extraction plate 62, and multiple support legs 61. The tops of the multiple support legs 61 are fixed to the bottom of the air extraction plate 62, and the bottoms of the multiple support legs 61 are fixed to the top of the mounting plate 2, as shown. Figure 6 and Figure 7As shown, the positioning plate 63 has several first air extraction holes 632 that can be inserted with positioning pins 8. The air extraction plate 62 is fixed to the bottom of the positioning plate 63. The air extraction plate 62 has several second air extraction holes 622 that communicate with the first air extraction holes 632. A vacuuming device is connected to the second air extraction holes 622. In this way, the worktable 6 is installed above the mounting plate 2, which facilitates the connection of the worktable 6 with other components. The split-type worktable 6 is also more convenient for manufacturing and assembly. Furthermore, as... Figure 7 As shown, the top of the suction plate 62 is provided with an upward opening 621. Multiple first connecting seats 623 and second connecting seats 624 protrude from the opening 621. Multiple second suction holes 622 are provided on the second connecting seats 624. When the positioning plate 63 and the suction plate 62 are installed, the multiple first connecting seats 623 and the multiple second connecting seats 624 abut against the bottom of the positioning plate 63. Fasteners pass through the first connecting seats 623 to fix the positioning plate 63 and the suction plate 62 in place.

[0045] like Figure 1 and Figure 2 As shown in this embodiment, a film-coating mechanism 7 is provided below the mounting plate 2. The film-coating mechanism 7 includes a rotating shaft 72 and two hooks 71. The two hooks 71 are arranged on the left and right sides, and the two hooks 71 respectively hook the two ends of the rotating shaft 72. A film roll is provided on the rotating shaft 72, wherein the film roll is formed by rolling up petroleum film. When film-coating on the worktable 6, only the end of the film roll needs to be pulled to pull the film 73 out from below the mounting plate 2 and cover the worktable 6. In this way, rapid film-coating can be achieved, and the film 73 is not easy to stick together during the film-coating process, so that the film 73 can be easily laid flat on the worktable 6.

[0046] like Figure 1-3 As shown, in this embodiment, the driving mechanism includes a transverse driving mechanism 4 for driving the hollow drill bit 9 to move left and right, a longitudinal driving mechanism 3 for driving the hollow drill bit 9 to move back and forth, a lifting driving mechanism for driving the hollow drill bit 9 to move up and down, and a rotation driving mechanism for driving the hollow drill bit 9 to rotate. Each driving mechanism is independently controlled, which can meet the needs of different drilling positions and further improve the applicability of the drilling machine. Furthermore, the longitudinal driving mechanism 3 is mounted on the same mounting plate 2 as the worktable 6, the transverse driving mechanism 4 is mounted on the longitudinal driving mechanism 3, the lifting driving mechanism is mounted on the transverse driving mechanism 4, the rotation driving mechanism is mounted on the transverse driving mechanism 4, and the hollow drill bit 9 is mounted on the rotation driving mechanism.

[0047] The longitudinal drive mechanism 3 includes two identical guide components, which are respectively located on the left and right sides of the worktable 6. Each guide component includes a support frame 31, a longitudinal slide rail 35, a longitudinal slider 36, and a longitudinal drive seat 37. The bottom of the support frame 31 is fixed to the mounting plate 2. The longitudinal slide rail 35 is fixed to the support frame 31, the longitudinal slider 36 is mounted on the longitudinal slide rail 35, and the longitudinal drive seat 37 is fixed to the longitudinal slider 36. Two longitudinal drive brackets 32 are fixed to both ends of the support frame 31. The longitudinal slide rail 35 is located between the two longitudinal drive brackets 32. A longitudinal transmission pulley 33 is rotatably mounted on each of the longitudinal drive brackets 32. The two longitudinal transmission pulleys 33 are connected by a longitudinal transmission belt 34, which is fixedly connected to the longitudinal drive seat 37. When one of the longitudinal transmission pulleys 33 rotates, the longitudinal transmission belt 34 drives the longitudinal drive seat 37 to slide on the longitudinal slide rail 35. This provides stable support at both ends of the transverse drive mechanism 4, ensuring the stability of the unit's operation.

[0048] Furthermore, such as Figure 2 and Figure 3 As shown, the longitudinal drive mechanism 3 includes a first motor 30 and a drive shaft 301. The left end of the drive shaft 301 is connected to a longitudinal drive pulley 33 on a guide assembly located on the left side, and the right end of the drive shaft 301 is connected to a longitudinal drive pulley 33 on a guide assembly located on the right side. The drive shaft 301 is connected to a longitudinal drive pulley located on the rear side. The first motor 30 is mounted on a support frame 31 in the longitudinal drive structure, and a synchronous pulley is mounted on the drive shaft 301. The synchronous pulley is connected to the output end of the first motor 30 via a synchronous belt drive. This arrangement allows the left and right ends of the transverse drive mechanism 4 to move synchronously, improving the accuracy of the hollow drill bit 9 movement.

[0049] Furthermore, such as Figure 1 As shown in Figure 3, to facilitate the connection between the longitudinal drive seat 37 and the longitudinal transmission belt, the longitudinal drive seat 37 is a frame structure, with the longitudinal transmission belt passing through it, making the structure more compact. A pressure plate 38 is fixed to the inner wall of the longitudinal drive seat 37, clamping the lower part of the longitudinal transmission belt between the pressure plate 38 and the inner wall of the longitudinal drive seat 37, thereby fixing the longitudinal transmission belt and the longitudinal drive seat 37. This makes the structure of the longitudinal drive mechanism more compact and also facilitates disassembly and installation. Furthermore, the longitudinal drive mechanism 3 also includes a first chain plate 39, one end of which is fixed to the front end of a support frame 31, and the other end of which is connected to the longitudinal drive seat 37 mounted on the support frame 31.

[0050] In this embodiment, as Figure 2 and Figure 3As shown, the transverse drive mechanism 4 includes a support plate 41, a lead screw 43, a second motor, a transverse slide rail 44, and a transverse slider 45. The left and right ends of the support plate 41 are respectively fixed to two longitudinal drive seats 37 of the longitudinal drive mechanism 3. Two connecting plates 42 are mounted on the support plate 41, arranged left and right. The two ends of the lead screw 43 are rotatably connected to the two connecting plates 42. The second motor is mounted on a motor mounting bracket 46 on the support plate 41, and its output end is connected to one end of the lead screw 43. The two ends of the transverse slide rail 44 are fixedly connected to the two connecting plates 42, and the transverse slide rail 44 is located above the lead screw 43. The transverse slider 45 is slidably mounted on the transverse slide rail 44, and a nut is fixedly installed at the bottom of the transverse slider 45. The nut is fitted onto the lead screw 43 and threadedly connected to it. The transverse drive mechanism also includes a second chain plate, one end of which is fixedly connected to the support plate 41, and the other end of which is fixedly connected to the transverse slider 45. This configuration makes the lateral movement of the hollow drill bit 9 easier to control, and the upper and lower lateral slide rails 44, lead screws 43 and support plates 41 make the structure of the lateral drive mechanism more compact.

[0051] In this embodiment, as Figure 4 and Figure 5 As shown, the lifting drive mechanism includes a lifting cylinder 5, and the rotation drive mechanism includes a mounting frame 91. The telescopic end of the lifting cylinder 5 is fixed to the mounting frame 91. The hollow drill bit 9 is rotatably mounted on the mounting frame 91. A third motor 92 is mounted on the mounting frame 91. A first drilling pulley is mounted on the output end of the third motor 92, and a second drilling pulley is mounted on the hollow drill bit 9. The first and second drilling pulleys are connected by a drilling transmission belt. Furthermore, a lifting drive plate 51 is slidably mounted on the lifting cylinder 5. The bottom of the lifting drive plate 51 is fixed to the bottom of the output end of the lifting cylinder 5, and the rear end of the mounting frame 91 is fixedly connected to the front end of the lifting drive plate 51. This configuration makes the movement of the lifting drive mechanism more stable.

[0052] In this embodiment, as Figure 4 and Figure 5 As shown, a material discharge rack 93 is fixedly mounted on the mounting bracket 91, and a material discharge drive component 94 is fixedly mounted on the material discharge rack 93. The material discharge drive component can be a cylinder or an electric push rod. The telescopic end of the material discharge drive component 94 is fixed with a pressure head 95, and the pressure head 95 extends downward and is inserted into the hollow drill bit 9.

[0053] To make the drilling action more stable, in this embodiment, as follows: Figure 4 and Figure 5As shown, a clamping plate 96 is installed at the bottom of the mounting frame 91. The clamping plate 96 is slidably connected to the mounting frame 91 via multiple guide rods 97. The clamping plate is located below the mounting frame. Springs are sleeved on the guide rods, with both ends of the springs abutting against the mounting frame and the clamping plate, respectively. A through hole is opened in the middle of the clamping plate 96, through which the hollow drill bit 9 extends. When drilling holes in the non-woven fabric, the cylinder drives the clamping plate 96 downward via the mounting frame 91. When the clamping plate 96 presses onto the non-woven fabric, it ensures that the outer area of ​​the non-woven fabric to be drilled remains flat during the drilling process. When the hollow drill bit moves downward and extends out of the through hole of the clamping plate, the springs on the guide rods are compressed. This allows the clamping plate to adapt to the thickness of the stacked non-woven fabrics, making it more widely applicable.

[0054] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A method for batch perforation of nonwoven fabrics, characterized in that: The specific steps are as follows: Step 1) Place a pattern board on the workbench (6) that matches the outline of the non-woven fabric to be cut, insert multiple positioning pins on the workbench (6), wherein the multiple positioning pins are evenly arranged around the pattern board, and the multiple positioning pins (8) abut against the side of the pattern board. Step 2) Place the stacked multilayer nonwoven fabric on the sample board, the nonwoven fabric is located inside the multiple positioning pins (8), and the multiple positioning pins (8) abut against the side of the nonwoven fabric. Step 3) Cover the workbench (6) and the non-woven fabric with the film. The vacuum device will evacuate the space between the film (73) and the workbench (6) so that the film (73) is pressed tightly onto the workbench (6) and the non-woven fabric, and the film (73), the non-woven fabric and the workbench (6) are fixed into a whole. Step 4) The driving device drives the punching mechanism to move above the nonwoven fabric. The punching mechanism moves down, and the clamping plate (96) of the punching mechanism clamps the outer part of the nonwoven fabric to be punched. The pressure head (95) of the punching mechanism clamps the inner part of the nonwoven fabric to be punched. The hollow drill bit (9) of the punching mechanism rotates and moves downward, extending out from the through hole on the clamping plate (96) to punch a hole in the nonwoven fabric to be punched. The pressure head (95) is located inside the hollow drill bit (9). Step 5) After completing the perforation of several non-woven fabrics, turn off the vacuum device and remove the film (73) from the workbench (6), and then take out several non-woven fabrics.

2. The method for batch perforation of nonwoven fabric according to claim 1, characterized in that: The workbench (6) is provided with multiple air extraction holes, which are connected to a vacuum pumping device. The positioning pin is plugged into and disconnected from the air extraction holes.

3. The method for batch perforation of nonwoven fabric according to claim 1, characterized in that: The workbench (6) and the drive device are mounted on the same mounting plate (2).

4. The method for batch perforation of nonwoven fabric according to claim 3, characterized in that: A rotating shaft (72) is rotatably mounted below the mounting plate (2), and a film roll is provided on the rotating shaft (72). In step 3), the film (73) on the film roll is pulled out from below the worktable (6) and covered the worktable (6).

5. The method for batch perforation of nonwoven fabric according to claim 1, characterized in that: The drive device includes a lateral drive mechanism (4) for driving the hollow drill bit (9) to move left and right, a longitudinal drive mechanism (3) for driving the hollow drill bit (9) to move forward and backward, a lifting drive mechanism for driving the hollow drill bit (9) to move up and down, and a rotation drive mechanism for driving the hollow drill bit (9) to rotate.

6. The method for batch perforation of nonwoven fabric according to claim 5, characterized in that: The longitudinal drive mechanism (3) and the worktable (6) are mounted on the same mounting plate (2). The transverse drive mechanism (4) is mounted on the longitudinal drive mechanism (3). The lifting drive mechanism is mounted on the transverse drive mechanism (4). The rotating drive mechanism is mounted on the transverse drive mechanism (4). The hollow drill bit (9) is mounted on the rotating drive mechanism.

7. The method for batch perforation of nonwoven fabrics according to claim 1, characterized in that: The pressure head (95) is mounted on the inside of the hollow drill bit (9) in a liftable manner, and the clamping plate is mounted on the outside of the hollow drill bit in a liftable manner.

8. The method for batch perforation of nonwoven fabrics according to claim 1, characterized in that: The sample board is an airtight paper board.

9. The method for batch perforation of nonwoven fabric according to claim 1, characterized in that: The workbench (6), the hollow drill bit (9) and the drive device are all installed inside the housing (1). The housing (1) has a forward-opening structure, and a horizontally extending grating (10) is provided at the front end of the housing (1).

10. A punching machine, characterized in that: The batch nonwoven fabric punching method according to any one of claims 1-9 includes a punching machine comprising a worktable (6), a positioning pin (8), a film (73), a hollow drill bit (9), and a drive device.

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