Laser presser foot structure of bag opening machine

Abstract

The utility model discloses a kind of laser presser foot structures of bag opening machine, to solve the risk of the risk of leakage of laser beam in the process of laser cutting bag opening, cloth is easily shaken, the insufficient of laser beam exists.The utility model includes workbench and the presser foot of lifting setting, laser cutting head is set below workbench, presser foot is set above workbench, presser foot and laser cutting head are oppositely set, laser cutting head emits laser and irradiates in the range of presser foot lower surface.This patent application's bag opening machine laser presser foot structure can position cloth, block laser beam after cloth cutting, prevent laser beam leakage.

Description

Technical Field

[0001] This utility model relates to the field of bag opening machine technology, and more specifically, it relates to a laser presser foot structure for a bag opening machine. Background Technology

[0002] Currently, the main methods for opening bags in fabrics are mechanical cold-knife opening and laser cutting opening. Mechanical cold-knife opening has a complex structure and is troublesome to assemble, and its cutting effect on elastic fabrics is not good. Therefore, laser cutting opening is often used. However, the fabric is prone to shaking during the cutting process, and there is a risk of laser beam leakage. Chinese patent application number 2020225141635 discloses a continuous production garment bag opening machine, in which a laser cutting device is suspended above the worktable for cutting garments or fabrics. However, the fabric is prone to shaking during laser cutting, and there is a risk of laser beam leakage. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a laser presser foot structure for a bag opening machine, which can position the fabric, block the laser beam after the fabric is cut, and prevent the laser beam from leaking out.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a laser presser foot structure for a bag opening machine, including a worktable and a presser foot with lifting and lowering, a laser cutting head is arranged below the worktable, the presser foot is arranged above the worktable, the presser foot and the laser cutting head are arranged opposite to each other, and the laser emitted by the laser cutting head irradiates the lower surface area of ​​the presser foot.

[0005] During laser cutting and bag opening, the presser foot presses down on the fabric, positioning and holding it in place while simultaneously blocking the laser beam from leaking out. The laser emitted from the laser cutting head illuminates the fabric, causing it to move laterally. This movement of the fabric and the laser cutting head together achieves the cutting and bag opening operation. The laser beam emitted by the laser cutting head is concentrated on the underside of the presser foot, ensuring no leakage. The presser foot is adjustable in height; after cutting, it rises to facilitate fabric unloading.

[0006] The laser presser foot structure of the bag opening machine in this patent application can position the fabric, block the laser beam after the fabric is cut, and prevent the laser beam from leaking out.

[0007] Preferably, a smoking channel is provided corresponding to the presser foot, with the opening of the smoking channel located close to the presser foot.

[0008] The smoke extraction channel can absorb the irritating odors and smoke generated during laser cutting.

[0009] Preferably, a mounting bracket is installed above the workbench, and a lifting piston cylinder is installed on the mounting bracket. The extension rod of the lifting piston cylinder is connected to the pressure foot.

[0010] The pressure foot is raised and lowered by a lifting piston cylinder, ensuring smooth and reliable operation.

[0011] Preferably, the mounting bracket is fastened to the mounting seat, and the mounting seat is provided with an L-shaped connecting part, with the lifting piston cylinder installed at the connecting part.

[0012] The lifting piston cylinder is connected to the mounting bracket via a mounting base, and the L-shaped connecting part on the mounting base facilitates the installation of the lifting piston cylinder.

[0013] In the first option, the end of the telescopic rod of the lifting piston cylinder is fastened to the lifting seat, and the pressure foot is fastened to the lifting seat.

[0014] The presser foot is directly connected and fixed to the lifting seat at the end of the lifting piston cylinder telescopic rod, which is convenient and reliable.

[0015] The second option involves setting a recessed groove on the upper surface of the presser foot, in which a laser stop block is detachably connected, and the laser stop block is set in accordance with the laser cutting head; a smoke chamber is formed between the laser stop block and the recessed groove, and the smoke chamber is connected to the smoke channel; several smoke holes connected to the smoke chamber are set on the lower surface of the laser stop block.

[0016] The laser stop is detachably installed in the recessed groove on the upper surface of the pressure foot. The laser stop is positioned corresponding to the laser cutting head, and the emitted laser shines on the laser stop. If damage occurs to the surface of the laser stop after prolonged use, only the laser stop needs to be replaced, without replacing the entire pressure foot. This makes maintenance convenient and cost-effective. The smoke extraction orifice is directly located on the lower surface of the laser stop, and the laser cutting position is also at the laser stop location. The smoke extraction orifice is directly aligned with the cutting position for effective smoke extraction.

[0017] The third option involves fastening the end of the telescopic rod of the lifting piston cylinder to the lifting seat, sliding the pressure foot to the slide column, fastening the slide column to the lifting seat, and installing a buffer spring between the pressure foot and the lifting seat.

[0018] A buffer spring is installed between the presser foot and the lifting seat to allow the presser foot to move smoothly and prevent the fabric from getting stuck after the presser foot presses on it.

[0019] The fourth option involves fastening the end of the telescopic rod of the lifting piston cylinder to the lifting seat, installing a transverse sliding seat that moves in the Y direction on the lifting seat, and installing the pressure foot on the transverse sliding seat that moves in the X direction.

[0020] The presser foot can be adjusted in the X and Y directions to ensure that it corresponds to the laser cutting head, so that the laser emitted by the laser cutting head irradiates the area on the lower surface of the presser foot.

[0021] Preferably, a fabric feeding mechanism is installed above the workbench. The fabric feeding mechanism includes two opposing pressure plates, which are raised and lowered, and a pressure foot is placed between the two pressure plates.

[0022] During the bag opening operation, the fabric is placed on the worktable, the pressure plate moves downward to press on the fabric, and the fabric is shaped and positioned. Then the presser foot moves downward to press on the fabric, the fabric feeding mechanism moves, and the fabric is pushed to move. The laser emitted by the laser cutting head irradiates the fabric to complete the cutting and bag opening.

[0023] Preferably, the pressure plate is provided with a pressure seat and a slide, the slide is movable in the X direction, the pressure seat and the slide are rotatably connected, the pressure plate is installed on the pressure seat, and a push-pull piston cylinder is installed on the slide. The push-pull piston cylinder pushes the pressure seat to rotate, causing the pressure plate to press against the worktable.

[0024] The push-pull piston cylinder telescopic rod moves, thereby pushing the pressure seat to rotate and pressing the pressure plate against the worktable, thus positioning the fabric on the worktable. The slide moves in the X direction, pushing the fabric to move for cutting and opening the bag.

[0025] Compared with the prior art, the beneficial effects of this utility model are: (1) The laser presser foot structure of the bag opening machine of this patent application can position the fabric, block the laser beam after the fabric is cut, and prevent the laser beam from leaking out; (2) By sucking air through the smoke channel, the irritating smell and smoke generated during laser cutting can be absorbed; (3) The laser block can be detachably installed in the recessed groove on the lower surface of the presser foot. The emitted laser irradiates the laser block. After long-term use, the surface of the laser block is damaged. Only the laser block needs to be replaced, and the entire presser foot does not need to be replaced. Maintenance is convenient and the cost is low; (4) The smoke hole is directly set on the lower surface of the laser block. The laser cutting position is also at the laser block position. The smoke hole is directly aligned with the cutting position for smoke extraction, and the smoke extraction effect is good; (5) The presser foot can move in a buffer mode to avoid the phenomenon of fabric jamming after the presser foot presses on the fabric; (6) The presser foot can be adjusted in the X and Y directions to ensure that the presser foot can correspond to the laser cutting head, so that the laser emitted by the laser cutting head irradiates the lower surface of the presser foot. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the utility model in use.

[0027] Figure 2 This is a structural diagram of the fabric pressing and feeding mechanism of this utility model.

[0028] Figure 3 This is a diagram showing the connection of the presser foot in this utility model.

[0029] Figure 4 This is a side view of the presser foot connection in Embodiment 1 of this utility model.

[0030] Figure 5 This is a side view of the presser foot connection in Embodiment 2 of this utility model.

[0031] Figure 6 This is a side view of the presser foot connection in Embodiment 3 of this utility model.

[0032] Figure 7 This is a side view of the presser foot connection in Embodiment 7 of this utility model.

[0033] In the diagram: 1. Workbench, 2. Presser foot, 3. Laser cutting head, 4. Long groove, 5. Smoke extraction channel, 6. Mounting bracket, 7. Lifting piston cylinder, 8. Mounting seat, 9. Lifting seat, 10. Pressure plate, 11. Pressure seat, 12. Slide seat, 13. Transmission belt, 14. Push-pull piston cylinder, 15. Connecting groove, 16. Push-pull rod, 17. Push-pull seat, 18. Adjusting piston cylinder, 19. Support, 20. Sliding column, 21. Buffer spring, 22. Sliding hole, 23. Sliding head, 24. Raised edge, 25. Horizontal sliding seat, 26. Wedge slide rail, 27. Wedge slide groove, 28. Positioning screw, 29. Guide bar, 30. Guide groove, 31. Locking screw, 32. Laser stop block, 33. Smoke extraction chamber, 34. Smoke extraction orifice. Detailed Implementation

[0034] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings: Example 1: A laser presser foot structure for a bag opening machine (see...) Figure 1 , Figure 2 , Figure 3 , Figure 4 The machine includes a worktable 1 and a lifting presser foot 2. The worktable 1 is set on the bag opening machine. A laser cutting head 3 is set below the worktable 1. A long groove 4 corresponding to the laser cutting head 3 is set on the worktable 1. The long groove 4 allows the laser emitted by the laser cutting head 3 to pass through. The presser foot 2 is set above the worktable 1. The presser foot 2 and the laser cutting head 3 are set opposite to each other. The lower surface of the presser foot 2 is a planar structure. The presser foot 2 is a long strip structure. The laser emitted by the laser cutting head 3 irradiates the lower surface area of ​​the presser foot 2.

[0035] A fumigation channel 5 is provided corresponding to the presser foot 2, with the opening of the fumigation channel 5 located close to the presser foot 2. A fumigation device is connected to the fumigation channel 5, and the fumigation device uses an exhaust fan. The exhaust fan operates to draw air from the fumigation channel 5, thereby absorbing the irritating odors and smoke generated during laser cutting.

[0036] A mounting bracket 6 is installed above the workbench 1. A lifting piston cylinder 7 is mounted on the mounting bracket 6, and the telescopic rod of the lifting piston cylinder 7 is connected to the pressure foot 2. A mounting base 8 is fastened to the mounting bracket 6. The mounting base 8 has an L-shaped connecting part, and the lifting piston cylinder 7 is installed at the connecting part. The end of the telescopic rod of the lifting piston cylinder 7 is fastened to the lifting seat 9, and the pressure foot 2 is fastened to the lifting seat 9. The lifting piston cylinder 7 is a dual-shaft cylinder with two parallel telescopic rods. The lower ends of both telescopic rods are fastened to the lifting seat 9.

[0037] The lifting piston cylinder 7 drives the pressure foot 2 to move up and down, ensuring smooth and reliable operation. The lifting piston cylinder 7 is connected to the mounting bracket 6 via the mounting base 8, and the L-shaped connecting part on the mounting base 8 facilitates the installation of the lifting piston cylinder 7. The pressure foot 2 is directly connected and fixed to the lifting seat 9, which is connected to the end of the telescopic rod of the lifting piston cylinder 7, making the connection convenient and reliable.

[0038] A fabric feeding mechanism is installed above the workbench 1. This mechanism includes two opposing pressure plates 10, which are raised and lowered. A pressure foot 2 is positioned between the two pressure plates 10. Each pressure plate 10 is equipped with a pressure seat 11 and a slide seat 12. The slide seat 12 is movable in the X-direction and slidably mounted on a mounting frame 6. A drive belt 13, driven by a motor, is mounted on the mounting frame 6. The slide seat 12 is securely connected to the drive belt, and the drive belt 13 moves the slide seat 12. Two pressure seats 11 are mounted on the slide seat 12, and the pressure seats 11 are rotatably connected to the slide seat 12. The pressure plate 10 is mounted on the pressure seats 11. A push-pull piston cylinder 14 is mounted on the slide seat 12. The push-pull piston cylinder 14 pushes the pressure seats 11 to rotate, causing the pressure plate 10 to press against the workbench 1. A connecting groove 15 is provided on the pressure seat 11, which is movably connected to a push-pull rod 16. The telescopic rod of the push-pull piston cylinder 14 is connected to a push-pull seat 17, and the push-pull rod 16 is mounted on the push-pull seat 17. An adjusting piston cylinder 18 is installed on the pressure base 11. The telescopic rod of the adjusting piston cylinder 18 is connected to the support 19, and the pressure plate 10 is fastened to the support 19. The telescopic rod of the adjusting piston cylinder 18 moves to adjust the distance between the two pressure plates 10.

[0039] During the bag opening operation, the fabric is placed on the worktable 1. The pressure plate 10 moves downward to press down on the fabric, achieving fabric shaping and positioning. Then, the pressure foot 2 moves downward to press down on the fabric. The fabric feeding mechanism moves, pushing the fabric forward. The laser emitted by the laser cutting head 3 irradiates the fabric, and the laser cutting head 3 moves laterally, thus achieving the cutting and bag opening operation. The laser emitted by the laser cutting head 3 irradiates the lower surface area of ​​the pressure foot 2, ensuring that the laser beam does not leak out. The pressure foot 2 is height-adjustable; after the bag opening and cutting are completed, the pressure foot 2 rises to facilitate fabric unloading.

[0040] Example 2: A laser presser foot structure for a bag opening machine (see...) Figure 1 , Figure 2 , Figure 5The machine includes a worktable 1 and a lifting presser foot 2. The worktable 1 is set on the bag opening machine. A laser cutting head 3 is set below the worktable 1. A long groove 4 corresponding to the laser cutting head 3 is set on the worktable 1. The long groove 4 allows the laser emitted by the laser cutting head 3 to pass through. The presser foot 2 is set above the worktable 1. The presser foot 2 and the laser cutting head 3 are set opposite to each other. The lower surface of the presser foot 2 is a planar structure. The presser foot 2 is a long strip structure. The laser emitted by the laser cutting head 3 irradiates the lower surface area of ​​the presser foot 2.

[0041] A fumigation channel 5 is provided corresponding to the presser foot 2, with the opening of the fumigation channel 5 located close to the presser foot 2. A fumigation device is connected to the fumigation channel 5, and the fumigation device uses an exhaust fan. The exhaust fan operates to draw air from the fumigation channel 5, thereby absorbing the irritating odors and smoke generated during laser cutting.

[0042] A mounting frame 6 is installed above the workbench 1. A lifting piston cylinder 7 is mounted on the mounting frame 6, and the telescopic rod of the lifting piston cylinder 7 is connected to the pressure foot 2. A mounting base 8 is fastened to the mounting frame 6. The mounting base 8 has an L-shaped connecting part, and the lifting piston cylinder 7 is installed at the connecting part. The end of the telescopic rod of the lifting piston cylinder 7 is fastened to the lifting seat 9. The pressure foot 2 is slidably connected to two sliding columns 20. The sliding columns 20 are fastened to the lifting seat 9. A buffer spring 21 is installed between the pressure foot 2 and the lifting seat 9. Both sliding columns 20 are fitted with buffer springs 21. The pressure foot 2 has a sliding hole 22 corresponding to the sliding column 20. The sliding column 20 has a sliding head 23 adapted to the sliding hole 22. The sliding head 23 is inserted into the sliding hole 22. A protruding edge 24 is provided at the upper opening of the sliding hole 22. The protruding edge 24 limits the sliding head 23 and prevents the sliding head 23 from slipping out of the sliding hole 22. A buffer spring 21 is installed between the presser foot 2 and the lifting seat 9 to allow the presser foot 2 to move buffered, preventing the fabric from getting stuck after the presser foot 2 presses onto the fabric. The lifting piston cylinder 7 is a dual-axis cylinder with two parallel lifting piston cylinder 7 telescopic rods, the lower ends of which are both firmly connected to the lifting seat 9.

[0043] The lifting piston cylinder 7 drives the pressure foot 2 to move up and down, ensuring smooth and reliable operation. The lifting piston cylinder 7 is connected to the mounting bracket 6 via the mounting base 8, and the L-shaped connecting part on the mounting base 8 facilitates the installation of the lifting piston cylinder 7. The pressure foot 2 is directly connected and fixed to the lifting seat 9, which is connected to the end of the telescopic rod of the lifting piston cylinder 7, making the connection convenient and reliable.

[0044] A fabric feeding mechanism is installed above the workbench 1. This mechanism includes two opposing pressure plates 10, which are raised and lowered. A pressure foot 2 is positioned between the two pressure plates 10. Each pressure plate 10 is equipped with a pressure seat 11 and a slide seat 12. The slide seat 12 is movable in the X-direction and slidably mounted on a mounting frame 6. A drive belt 13, driven by a motor, is mounted on the mounting frame 6. The slide seat 12 is securely connected to the drive belt, and the drive belt 13 moves the slide seat 12. Two pressure seats 11 are mounted on the slide seat 12, and the pressure seats 11 are rotatably connected to the slide seat 12. The pressure plate 10 is mounted on the pressure seats 11. A push-pull piston cylinder 14 is mounted on the slide seat 12. The push-pull piston cylinder 14 pushes the pressure seats 11 to rotate, causing the pressure plate 10 to press against the workbench 1. A connecting groove 15 is provided on the pressure seat 11, which is movably connected to a push-pull rod 16. The telescopic rod of the push-pull piston cylinder 14 is connected to a push-pull seat 17, and the push-pull rod 16 is mounted on the push-pull seat 17. An adjusting piston cylinder 18 is installed on the pressure base 11. The telescopic rod of the adjusting piston cylinder 18 is connected to the support 19, and the pressure plate 10 is fastened to the support 19. The telescopic rod of the adjusting piston cylinder 18 moves to adjust the distance between the two pressure plates 10.

[0045] During the bag opening operation, the fabric is placed on the worktable 1. The pressure plate 10 moves downward to press down on the fabric, achieving fabric shaping and positioning. Then, the pressure foot 2 moves downward to press down on the fabric. The fabric feeding mechanism moves, pushing the fabric forward. The laser emitted by the laser cutting head 3 irradiates the fabric, and the laser cutting head 3 moves laterally, thus achieving the cutting and bag opening operation. The laser emitted by the laser cutting head 3 irradiates the lower surface area of ​​the pressure foot 2, ensuring that the laser beam does not leak out. The pressure foot 2 is height-adjustable; after the bag opening and cutting are completed, the pressure foot 2 rises to facilitate fabric unloading.

[0046] Example 3: A laser presser foot structure for a bag opening machine (see...) Figure 1 , Figure 2 , Figure 6 The machine includes a worktable 1 and a lifting presser foot 2. The worktable 1 is set on the bag opening machine. A laser cutting head 3 is set below the worktable 1. A long groove 4 corresponding to the laser cutting head 3 is set on the worktable 1. The long groove 4 allows the laser emitted by the laser cutting head 3 to pass through. The presser foot 2 is set above the worktable 1. The presser foot 2 and the laser cutting head 3 are set opposite to each other. The lower surface of the presser foot 2 is a planar structure. The presser foot 2 is a long strip structure. The laser emitted by the laser cutting head 3 irradiates the lower surface area of ​​the presser foot 2.

[0047] A fumigation channel 5 is provided corresponding to the presser foot 2, with the opening of the fumigation channel 5 located close to the presser foot 2. A fumigation device is connected to the fumigation channel 5, and the fumigation device uses an exhaust fan. The exhaust fan operates to draw air from the fumigation channel 5, thereby absorbing the irritating odors and smoke generated during laser cutting.

[0048] A mounting bracket 6 is installed above the workbench 1. A lifting piston cylinder 7 is mounted on the mounting bracket 6, and the telescopic rod of the lifting piston cylinder 7 is connected to the pressure foot 2. A mounting base 8 is fastened to the mounting bracket 6. The mounting base 8 has an L-shaped connecting part, and the lifting piston cylinder 7 is installed at the connecting part. The end of the telescopic rod of the lifting piston cylinder 7 is fastened to a lifting seat 9. A transverse sliding seat 25 that moves in the Y direction is installed on the lifting seat 9, and the pressure foot 2 is mounted on the transverse sliding seat 25 that moves in the X direction. Two parallel wedge-shaped slide rails 26 are provided on the lower surface of the lifting seat 9. A wedge-shaped groove 27 that matches the wedge-shaped slide rails 26 is provided on the transverse sliding seat 25. The wedge-shaped slide rails 26 and the wedge-shaped groove 27 are slidably connected. A positioning screw 28 is installed on the lifting seat 9, and the end of the positioning screw 28 abuts against the transverse sliding seat 25. Two parallel guide bars 29 are provided on the lower surface of the transverse shifter 25. A guide groove 30 adapted to the guide bars 29 is provided on the pressure foot 2. Both the guide bars 29 and the guide groove 30 have a wedge-shaped structure and are slidably connected. A locking screw 31 is connected to the transverse shifter 25, with its end abutting against the pressure foot 2. The pressure foot 2 can be adjusted in the X and Y directions to ensure that it corresponds to the laser cutting head 3, so that the laser emitted by the laser cutting head 3 irradiates the lower surface area of ​​the pressure foot 2.

[0049] The lifting piston cylinder 7 is a dual-shaft cylinder with two parallel telescopic rods. The lower ends of both telescopic rods are securely connected to the lifting seat 9. The lifting piston cylinder 7 drives the pressure foot 2 to move up and down smoothly and reliably. The lifting piston cylinder 7 is connected to the mounting bracket 6 via a mounting base 8. The L-shaped connection on the mounting base 8 facilitates the installation of the lifting piston cylinder 7. The pressure foot 2 is directly connected and fixed to the lifting seat 9, which is convenient and reliable.

[0050] A fabric feeding mechanism is installed above the workbench 1. This mechanism includes two opposing pressure plates 10, which are raised and lowered. A pressure foot 2 is positioned between the two pressure plates 10. Each pressure plate 10 is equipped with a pressure seat 11 and a slide seat 12. The slide seat 12 is movable in the X-direction and slidably mounted on a mounting frame 6. A drive belt 13, driven by a motor, is mounted on the mounting frame 6. The slide seat 12 is securely connected to the drive belt, and the drive belt 13 moves the slide seat 12. Two pressure seats 11 are mounted on the slide seat 12, and the pressure seats 11 are rotatably connected to the slide seat 12. The pressure plate 10 is mounted on the pressure seats 11. A push-pull piston cylinder 14 is mounted on the slide seat 12. The push-pull piston cylinder 14 pushes the pressure seats 11 to rotate, causing the pressure plate 10 to press against the workbench 1. A connecting groove 15 is provided on the pressure seat 11, which is movably connected to a push-pull rod 16. The telescopic rod of the push-pull piston cylinder 14 is connected to a push-pull seat 17, and the push-pull rod 16 is mounted on the push-pull seat 17. An adjusting piston cylinder 18 is installed on the pressure base 11. The telescopic rod of the adjusting piston cylinder 18 is connected to the support 19, and the pressure plate 10 is fastened to the support 19. The telescopic rod of the adjusting piston cylinder 18 moves to adjust the distance between the two pressure plates 10.

[0051] During the bag opening operation, the fabric is placed on the worktable 1. The pressure plate 10 moves downward to press down on the fabric, achieving fabric shaping and positioning. Then, the pressure foot 2 moves downward to press down on the fabric. The fabric feeding mechanism moves, pushing the fabric forward. The laser emitted by the laser cutting head 3 irradiates the fabric, and the laser cutting head 3 moves laterally, thus achieving the cutting and bag opening operation. The laser emitted by the laser cutting head 3 irradiates the lower surface area of ​​the pressure foot 2, ensuring that the laser beam does not leak out. The pressure foot 2 is height-adjustable; after the bag opening and cutting are completed, the pressure foot 2 rises to facilitate fabric unloading.

[0052] Example 4: A laser presser foot structure for a bag opening machine (see...) Figure 1 , Figure 2 , Figure 7 The machine includes a worktable 1 and a lifting presser foot 2. The worktable 1 is set on the bag opening machine. A laser cutting head 3 is set below the worktable 1. A long groove 4 corresponding to the laser cutting head 3 is set on the worktable 1. The long groove 4 allows the laser emitted by the laser cutting head 3 to pass through. The presser foot 2 is set above the worktable 1. The presser foot 2 and the laser cutting head 3 are set opposite to each other. The lower surface of the presser foot 2 is a planar structure. The presser foot 2 is a long strip structure. The laser emitted by the laser cutting head 3 irradiates the lower surface area of ​​the presser foot 2.

[0053] A mounting bracket 6 is installed above the workbench 1. A lifting piston cylinder 7 is mounted on the mounting bracket 6, and the telescopic rod of the lifting piston cylinder 7 is connected to the pressure foot 2. A mounting base 8 is fastened to the mounting bracket 6. An L-shaped connecting part is provided on the mounting base 8, and the lifting piston cylinder 7 is installed at the connecting part.

[0054] A recessed groove is provided on the lower surface of the pressure foot 2, and a laser stop block 32 is detachably connected to the recessed groove. The lower surface of the laser stop block 32 is flush with the lower surface of the pressure foot 2, and the laser stop block 32 is correspondingly positioned with the laser cutting head 3. A smoke chamber 33 is formed between the laser stop block 32 and the recessed groove, and the smoke chamber 33 is connected to the smoke channel 5. Several smoke holes 34 connected to the smoke chamber 33 are provided on the lower surface of the laser stop block 32. The smoke channel 5 is correspondingly positioned with the pressure foot 2, and a smoke extraction device is connected to the smoke channel 5. The smoke extraction device uses an exhaust fan, which works to extract air from the smoke channel 5, thereby absorbing the irritating odors and smoke generated during laser cutting.

[0055] The laser stop 32 is detachably installed in the recessed groove on the lower surface of the pressure foot 2. The laser stop 32 is correspondingly positioned to the laser cutting head 3, and the emitted laser irradiates the laser stop 32. After prolonged use, if the surface of the laser stop 32 is damaged, only the laser stop 32 needs to be replaced, without replacing the entire pressure foot 2. This makes maintenance convenient and cost-effective. The smoke extraction orifice 34 is directly located on the lower surface of the laser stop 32, and the laser cutting position is also at the location of the laser stop 32. The smoke extraction orifice 34 directly targets the cutting position for smoke extraction, resulting in excellent smoke extraction performance.

[0056] The lifting piston cylinder 7 is a dual-shaft cylinder with two parallel telescopic rods. The lower ends of both telescopic rods are securely connected to the lifting seat 9. The lifting piston cylinder 7 drives the pressure foot 2 to move up and down smoothly and reliably. The lifting piston cylinder 7 is connected to the mounting bracket 6 via a mounting base 8. The L-shaped connection on the mounting base 8 facilitates the installation of the lifting piston cylinder 7. The pressure foot 2 is directly connected and fixed to the lifting seat 9, which is convenient and reliable.

[0057] A fabric feeding mechanism is installed above the workbench 1. This mechanism includes two opposing pressure plates 10, which are raised and lowered. A pressure foot 2 is positioned between the two pressure plates 10. Each pressure plate 10 is equipped with a pressure seat 11 and a slide seat 12. The slide seat 12 is movable in the X-direction and slidably mounted on a mounting frame 6. A drive belt 13, driven by a motor, is mounted on the mounting frame 6. The slide seat 12 is securely connected to the drive belt, and the drive belt 13 moves the slide seat 12. Two pressure seats 11 are mounted on the slide seat 12, and the pressure seats 11 are rotatably connected to the slide seat 12. The pressure plate 10 is mounted on the pressure seats 11. A push-pull piston cylinder 14 is mounted on the slide seat 12. The push-pull piston cylinder 14 pushes the pressure seats 11 to rotate, causing the pressure plate 10 to press against the workbench 1. A connecting groove 15 is provided on the pressure seat 11, which is movably connected to a push-pull rod 16. The telescopic rod of the push-pull piston cylinder 14 is connected to a push-pull seat 17, and the push-pull rod 16 is mounted on the push-pull seat 17. An adjusting piston cylinder 18 is installed on the pressure base 11. The telescopic rod of the adjusting piston cylinder 18 is connected to the support 19, and the pressure plate 10 is fastened to the support 19. The telescopic rod of the adjusting piston cylinder 18 moves to adjust the distance between the two pressure plates 10.

[0058] During the bag opening operation, the fabric is placed on the worktable 1. The pressure plate 10 moves downward to press down on the fabric, achieving fabric shaping and positioning. Then, the pressure foot 2 moves downward to press down on the fabric. The fabric feeding mechanism moves, pushing the fabric forward. The laser emitted by the laser cutting head 3 irradiates the fabric, and the laser cutting head 3 moves laterally, thus achieving the cutting and bag opening operation. The laser emitted by the laser cutting head 3 irradiates the lower surface area of ​​the pressure foot 2, ensuring that the laser beam does not leak out. The pressure foot 2 is height-adjustable; after the bag opening and cutting are completed, the pressure foot 2 rises to facilitate fabric unloading.

[0059] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A laser presser foot structure for a bag opening machine, characterized in that, It includes a worktable and a presser foot with lifting mechanism. A laser cutting head is installed below the worktable, and the presser foot is installed above the worktable. The presser foot and the laser cutting head are positioned opposite each other, and the laser emitted by the laser cutting head irradiates the lower surface of the presser foot.

2. The laser presser foot structure for a bag opening machine according to claim 1, characterized in that, The presser foot is equipped with a corresponding smoking channel, and the opening end of the smoking channel is located close to the presser foot.

3. The laser presser foot structure for a bag opening machine according to claim 1, characterized in that, A mounting frame is installed above the workbench, and a lifting piston cylinder is installed on the mounting frame. The extension rod of the lifting piston cylinder is connected to the pressure foot.

4. The laser presser foot structure for a bag opening machine according to claim 3, characterized in that, The mounting bracket is fastened to the mounting seat, which is provided with an L-shaped connecting part. The lifting piston cylinder is installed at the connecting part.

5. The laser presser foot structure for a bag opening machine according to claim 3, characterized in that, The end of the extension rod of the lifting piston cylinder is fastened to the lifting seat, and the pressure foot is fastened to the lifting seat.

6. The laser presser foot structure for a bag opening machine according to claim 5, characterized in that the presser foot... A recessed groove is set on the surface under the feet, and a laser stop block is detachably connected in the recessed groove. The laser stop block is set in correspondence with the laser cutting head. A smoke chamber is formed between the laser stop block and the recessed groove. The smoke chamber is connected to the smoke channel. Several smoke holes connected to the smoke chamber are set on the lower surface of the laser stop block.

7. The laser presser foot structure for a bag opening machine according to claim 3, characterized in that, The end of the telescopic rod of the lifting piston cylinder is fastened to the lifting seat, the pressure foot is slidably connected to the slide column, the slide column is fastened to the lifting seat, and a buffer spring is installed between the pressure foot and the lifting seat.

8. The laser presser foot structure for a bag opening machine according to claim 3, characterized in that, The end of the telescopic rod of the lifting piston cylinder is fastened to the lifting seat. A transverse sliding seat that moves in the Y direction is installed on the lifting seat, and the pressure foot is installed on the transverse sliding seat that moves in the X direction.

9. A laser presser foot structure for a bag opening machine according to any one of claims 1 to 8, characterized in that, A fabric feeding mechanism is installed above the workbench. The fabric feeding mechanism includes two opposing pressure plates, which are raised and lowered, with the pressure foot placed between the two pressure plates.

10. The laser presser foot structure for a bag opening machine according to claim 9, characterized in that, The pressure plate is equipped with a pressure seat and a slide. The slide is movable in the X direction. The pressure seat and the slide are rotatably connected. The pressure plate is installed on the pressure seat. A push-pull piston cylinder is installed on the slide. The push-pull piston cylinder pushes the pressure seat to rotate, causing the pressure plate to press against the worktable.

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