Desktop-level small laser cutting machine

Abstract

The invention relates to a desktop-level small laser cutting machine, and relates to the technical field of laser cutting, the desktop-level small laser cutting machine comprises a machine box, a control module, a propelling table, a movable mechanism and a laser cutting head, a feeding port is formed in one side wall of the machine box in the length direction in a penetrating mode, and a discharging port is formed in the other side wall of the machine box in the length direction in a penetrating mode; supporting tables are arranged on the two inner side walls of the case in the width direction; the propelling table slides in the direction close to or away from the feeding port, a winding wheel is rotationally arranged on the side wall, in the width direction, of the machine box, a pull rope is arranged between the winding wheel and the propelling table, one end of the pull rope is fixedly connected with the propelling table, the other end of the pull rope is wound around the winding wheel, and a driving mechanism is further arranged on the machine box. The driving mechanism is used for driving the winding wheel to rotate, and the driving mechanism is electrically connected with the control module. The cutting device has the effects of reducing the frequency of replacing the plate profile and improving the continuity of cutting machining.

Description

Technical Field

[0001] The present application relates to the field of laser cutting technology, and in particular to a small desktop laser cutting machine. Background Art

[0002] Laser cutting machine is to focus the laser light emitted from the laser into a high power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach the melting point or boiling point, and at the same time, the high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, the material is eventually cut, thus achieving the purpose of cutting.

[0003] In the related art, a desktop laser cutting machine is designed, which includes a chassis, a movable mechanism, a laser cutting head, and a control module. The laser cutting head is movably arranged in the chassis through the movable mechanism. The movable mechanism and the laser cutting head are electrically connected to the control module. A feed port is provided on one side of the chassis in the length direction. The movable mechanism includes a Y-axis guide rail, an X-axis guide rail, and a Z-axis guide rail. The Y-axis guide rail is fixedly arranged on both sides of the width direction in the chassis, and the X-axis guide rail slides on the two Y-axis guide rails along the length direction of the chassis. The Z-axis guide rail slides on the X-axis guide rail along the width direction of the chassis, and the laser cutting head is fixedly mounted on the Z-axis guide rail.

[0004] When using the laser cutting machine, the plate profile is inserted into the chassis from the feed port, and then the control module controls the movable mechanism to drive the laser cutting head to move, and the laser cutting head cuts the required parts on the small section of the plate. After a plate profile is cut, the cut plate profile waste needs to be taken out from the feed port, and a new plate profile is fed into the chassis from the feed port to replace the plate profile.

[0005] In the process of implementing the present application, it was found that there are at least the following problems in this technology: when cutting the plate profile, it is necessary to ensure that the plate profile can be completely stuffed into the chassis, the area available for cutting of the plate profile is limited, and the waste of the plate profile that has been cut needs to be frequently taken out from the feed port and new small sections of the plate need to be fed into the chassis. The operation is cumbersome and affects the continuity of the cutting process. Summary of the invention

[0006] In order to reduce the frequency of replacing plate profiles and improve the continuity of cutting processing, the present application provides a desktop-level small laser cutting machine.

[0007] The present application provides a desktop small laser cutting machine adopts the following technical solution: A desktop small laser cutting machine comprises a chassis, a control module, a push table, a movable mechanism, and a laser cutting head. The laser cutting head is movably arranged in the chassis through the movable mechanism. The movable mechanism and the laser cutting head are electrically connected to the control module. A feed port is provided through one side wall of the chassis in the length direction, and a discharge port is provided through another side wall of the chassis in the length direction. A support table is provided on two inner side walls of the chassis in the width direction. The laser cutting machine also comprises a push table, which slides in a direction approaching or away from the feed port. A discharge trough is provided at the top of the push table toward one side of the feed port, and the bottom wall of the discharge trough is flush with the top of the support table. A winding wheel is rotatably arranged on the side wall of the chassis in the width direction, and a tension rope is arranged between the winding wheel and the push table. One end of the tension rope is fixedly connected to the push table, and the other end of the tension rope is wound around the winding wheel. A driving mechanism is provided on the chassis, and the driving mechanism is used to drive the winding wheel to rotate, and the driving mechanism is electrically connected to the control module.

[0008] By adopting the above technical solution, when cutting the plate profile, one end of the plate profile is fed into the chassis from the feed port, so that the edges of both sides of the plate profile are placed on the support platform, and the other end of the plate profile is placed in the discharge trough on the push platform. The control module controls the movable mechanism to drive the laser cutting head to move, and the laser cutting head cuts the required parts on the plate profile. After the part of the plate profile in the chassis is cut, the control module drives the winding wheel to rotate through the driving mechanism, and the winding wheel reels the tension rope. The tension rope pulls the push platform to move in the direction close to the discharge port. The push platform drives the uncut part of the plate profile into the chassis, and the cut part of the plate profile leaves the chassis from the discharge port. In this way, there is no need to ensure that the plate profile can be completely stuffed into the chassis, which reduces the frequency of replacing the plate profile and improves the continuity of the cutting process.

[0009] Preferably, an extendable or shortened telescopic rod is provided between the chassis and the propulsion platform, one end of the telescopic rod is fixedly connected to the chassis, and the other end of the telescopic rod is fixedly connected to the propulsion platform.

[0010] By adopting the above technical solution, the telescopic rod can be extended and retracted accordingly during the movement of the propulsion platform, providing guidance for the propulsion platform and ensuring the stability of the propulsion platform's activities, so that the propulsion platform can leave the desktop and perform propulsion work in a suspended state.

[0011] Preferably, the driving mechanism includes a turntable, a lever, a driving motor, a rotating shaft, and a groove wheel. The turntable and the rotating shaft are rotatably arranged on the side wall of the chassis in the width direction. The driving motor is fixedly connected to the chassis. The driving shaft of the driving motor is coaxially fixed with the turntable. The driving motor is electrically connected to the control module. The lever is fixedly arranged at a position where the end face of the turntable deviates from the axis. The groove wheel is fixedly connected to the rotating shaft. A plurality of radial grooves are evenly arranged in the circumferential direction of the groove wheel. The lever can be inserted into the radial grooves and abut against the radial grooves. The winding wheel is mounted on the rotating shaft.

[0012] By adopting the above technical solution, when the plate profile is cut on the support platform, the control module drives the driving motor to drive the turntable to rotate, and after the lever on the turntable rotates and inserts into the radial groove of the groove wheel, the lever drives the groove wheel to rotate a certain angle, thereby driving the winding wheel to rotate, and the winding wheel reels the tension rope to drive the push platform close to the feed port; then the lever disengages from the radial groove, the groove wheel stops, and the winding wheel stops rotating accordingly, so as to ensure that the rotation degree of the winding wheel is consistent each time, thereby ensuring that the moving distance of the push platform is consistent each time.

[0013] Preferably, a locking block is fixedly provided at the center of the end face of the turntable, and a locking arc groove is provided on the groove wheel between two adjacent radial grooves. The locking block can be rotatably matched with any locking arc groove, and a notch groove is provided on the circumferential wall of the locking block for the groove wheel to pass over the locking block, and the notch groove is opposite to the shift rod.

[0014] By adopting the above technical solution, when the lever extends into the radial groove and pushes the groove wheel to rotate, the notch groove of the locking round block faces the groove wheel and does not affect the rotation of the groove wheel. When the lever is released from the radial groove, the locking round block immediately rotates with the locking arc groove to prevent the groove wheel from rotating.

[0015] Preferably, the winding wheel is rotatably matched with the rotating shaft, a plurality of locking holes are evenly opened on the end face of the winding wheel along the circumferential direction, a locking plate is fixedly provided on the rotating shaft, a locking bolt is threadedly connected to the locking plate, and the locking bolt can be extended into the locking hole and abutted against the locking hole.

[0016] By adopting the above technical solution, when it is necessary to drive the push platform away from the feed port, the lock bolt is rotated to make the lock bolt leave the lock hole, and the winding wheel is separated from the rotating shaft and can rotate freely; at this time, the push platform can be directly pulled away from the feed port, and the traction rope can directly drive the winding wheel to rotate in the opposite direction and be released from the winding wheel. When it is necessary to make the winding wheel rotate together with the groove wheel, the lock bolt is rotated again to make it extend into the lock hole, so that the winding wheel is fixed on the rotating shaft.

[0017] Preferably, a movable platform is provided on the side wall of the chassis in the width direction, the movable platform is located between the support platform and the discharge port, the movable platform is flush with the top of the support platform, and a cutting gap is left between the movable platform and the support platform for the laser cutting head to split the plate profile.

[0018] By adopting the above technical solution, the laser cutting head can completely split the plate profile at the cutting gap, and cutting at the cutting gap will not damage the movable table and the movable table, so that the cut part of the plate profile is separated from the uncut part. When the cut part of the plate profile is cut off and discharged, the discharged plate profile waste automatically falls, preventing the plate profile on the side of the chassis facing the discharge port from extending too long. It helps to reduce the space required to be reserved on the discharge port side of the chassis in the workplace.

[0019] Preferably, the chassis is fixedly provided with top blocks on the two inner side walls in the width direction, the movable platform is rotatably connected to the chassis at one end facing the discharge port, the bottom of the movable platform away from the discharge port is abutted against the top of the top block, and a tipping piece is provided in the chassis, which is used to drive the movable platform to deflect in the direction away from the top block.

[0020] By adopting the above technical solution, after the cut part of the plate profile is cut off, the cut part is located on the movable table, and then the dumping member drives the movable table to deflect away from the top block, and the cut part is dumped out from the discharge port.

[0021] Preferably, the tipping member includes a movable push rod, an incomplete gear, and a pushing rack. The movable push rod is arranged to slide vertically in the chassis. The top of the movable push rod can be abutted against the bottom of the movable platform. The pushing rack is fixed on the movable push rod. The incomplete gear is rotatably arranged in the chassis. The incomplete gear is coaxially fixed with the turntable. A plurality of teeth are fixed on the peripheral wall of the incomplete gear, and the teeth can mesh with the gear.

[0022] By adopting the above technical solution, the incomplete gear is driven to rotate when the turntable rotates, and the teeth on the incomplete gear mesh with the push rack, thereby driving the push rack and the movable push rod to move upward, pushing the movable platform to deflect away from the top block, and dumping the waste plate profile. When the teeth on the incomplete gear are disengaged from the push rack, the movable push rod moves downward, and the movable platform is reset under the action of its own gravity. And when the lever is disengaged from the radial groove, the teeth can mesh with the gear, ensuring that the push platform can push the plate profile into the chassis when the movable platform is on the top block. In this way, the coordination of the feeding action of the push platform and the dumping action of the movable platform is ensured.

[0023] Preferably, a rotating wheel is rotatably provided on the top of the movable push rod, and the movable push rod abuts against the movable platform through the rotating wheel.

[0024] By adopting the above technical solution, the rotating wheel can reduce the friction between the movable push rod and the movable platform, so that the movable push rod can push the movable platform more smoothly, reduce wear and tear, and extend the service life.

[0025] Preferably, a mounting plate is fixedly provided on the side wall of the discharge trough, a clamping screw is vertically and threadedly connected to the mounting plate, and a clamping block is rotatably provided at the bottom of the clamping screw.

[0026] By adopting the above technical solution, rotating the clamping screw can drive the clamping block to move up and down, thereby clamping and fixing the plate profile placed in the discharge trough, preventing the plate profile from shifting during the advancement process, and ensuring the accuracy and stability of cutting.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up the push table, winding wheel, tension rope, driving mechanism and telescopic rod, the continuous feeding and cutting of plate profiles are realized, the frequency of replacing plate profiles is reduced, and the continuity of cutting processing is improved; 2. By setting a driving motor, a turntable, a lever, a groove wheel, and a locking round block, it is convenient to realize the intermittent rotation of the winding wheel to ensure that the rotation degree of the winding wheel is consistent each time, thereby ensuring that the moving distance of the propulsion platform is consistent each time; 3. By setting a support table, a movable table, a cutting gap, an incomplete gear, a movable slide bar, and a pushing rack, the plate profile can be cut and discharged as waste, preventing the plate profile on the side of the chassis toward the discharge port from extending too long, ensuring the smoothness of the waste from leaving the feed port. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a desktop small laser cutting machine provided in an embodiment of the present application.

[0029] Figure 2 yes Figure 1 Enlarged view of part A.

[0030] Figure 3 It is a partial enlarged view of the movable mechanism in the embodiment of the present application.

[0031] Figure 4 It is a schematic diagram of the cross-sectional structure of a desktop small laser cutting machine provided in an embodiment of the present application.

[0032] Figure 5 yes Figure 4 Enlarged view of part B.

[0033] Description of the reference numerals: 1, chassis; 11, feed port; 12, discharge port; 13, support platform; 14, movable platform; 141, top block; 15, winding wheel; 151, tension rope; 152, lock hole; 16, telescopic rod; 17, observation window; 18, movable push rod; 181, push rack; 182, rotating wheel; 2, push platform; 21, discharge trough; 22, mounting plate; 23, clamping screw; 24, pressing block; 3, movable mechanism; 31, Y-axis guide rail; 311, first rack; 32, X-axis guide rail; 321, second rack; 322, first motor; 3 23. First gear; 33. Z-axis guide rail; 331. Laser cutting head; 3311. Third motor; 3312. Third gear; 332. Second motor; 333. Second gear; 334. Third rack; 4. Driving mechanism; 41. Turntable; 411. Push rod; 412. Locking block; 4121. Notch groove; 413. Incomplete gear; 4131. Tooth; 42. Driving motor; 43. Rotating shaft; 431. Locking plate; 432. Locking bolt; 44. Grooved wheel; 441. Radial groove; 442. Locking arc groove; 5. Collecting box; 6. Receiving tray. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-5 This application is described in further detail.

[0035] The present application embodiment discloses a desktop small laser cutting machine. Figures 1 to 4 , which includes a chassis 1, a control module, a pusher 2, a movable mechanism 3, and a laser cutting head 331. The laser cutting head 331 is movably arranged in the chassis 1 through the movable mechanism 3, and the movable mechanism 3 and the laser cutting head 331 are both electrically connected to the control module. A feed port 11 is formed through one side wall of the chassis 1 in the length direction, and a discharge port 12 is formed through the other side wall of the chassis 1 in the length direction.

[0036] Reference Figure 3 and Figure 4The movable mechanism 3 includes a Y-axis guide rail 31, an X-axis guide rail 32, and a Z-axis guide rail 33. The Y-axis guide rail 31 is fixedly arranged on both sides in the width direction of the chassis 1, and the X-axis guide rail 32 slides on the Y-axis guide rail 31 along the length direction of the chassis 1. A first rack 311 is fixedly arranged on the Y-axis guide rail 31, a first motor 322 is fixedly arranged on the X-axis guide rail 32, a first gear 323 is fixedly arranged on the driving shaft of the first motor 322, and the first gear 323 and the first rack 311 are meshed with each other. The Z-axis guide rail 33 slides on the X-axis guide rail 32 along the width direction of the chassis 1, a second rack 321 is fixedly arranged on the X-axis guide rail 32, a second motor 332 is fixedly arranged on the Z-axis guide rail 33, a second gear 333 is fixedly arranged on the driving shaft of the second motor 332, and the second gear 333 and the second rack 321 are meshed with each other. A third rack 334 is fixedly arranged on the Z-axis guide rail 33, the laser cutting head 331 is slidably arranged on the Z-axis guide rail 33 in the vertical direction, a third motor 3311 is fixedly arranged on the laser cutting head 331, a third gear 3312 is fixedly arranged on the driving shaft of the third motor 3311, and the third gear 3312 is meshed with the third rack 334. Among them, the first motor 322, the second motor 332, and the third motor 3311 are all servo motors, and the control module is a PLC controller. The first motor 322, the second motor 332, and the third motor 3311 are all electrically connected to the control module.

[0037] Reference Figure 1 , the chassis 1 is provided with a support 13 on the two inner side walls in the width direction, and the support 13 is used to carry the plate profile. The laser cutting machine also includes a push platform 2, which slides in the direction close to or away from the feed port 11. The push platform 2 is provided with a discharge trough 21 on the top side facing the feed port 11, and the bottom wall of the discharge trough 21 is flush with the top of the support 13. Specifically, an extendable or shortenable telescopic rod 16 is provided between the chassis 1 and the push platform 2, one end of the telescopic rod 16 is fixedly connected to the chassis 1, and the other end of the telescopic rod 16 is fixedly connected to the push platform 2. The telescopic rod 16 is formed by multiple sections of sleeves of different diameters nested in sequence, and the telescopic rod 16 is used to improve the guiding property of the sliding of the push platform 2.

[0038] Reference Figure 1 A winding wheel 15 is rotatably provided on the side wall of the chassis 1 in the width direction, a tension rope 151 is provided between the winding wheel 15 and the propulsion platform 2, one end of the tension rope 151 is fixedly connected to the propulsion platform 2, and the other end of the tension rope 151 is wound around the winding wheel 15, and a driving mechanism 4 is provided on the chassis 1, and the driving mechanism 4 is used to drive the winding wheel 15 to rotate, and the driving mechanism 4 is electrically connected to the control module.

[0039] In order to improve the stability of the plate profile on the movable platform 14, refer to Figure 1A mounting plate 22 is fixedly arranged on the side wall of the discharge trough 21, a clamping screw 23 is vertically and threadedly connected to the mounting plate 22, and a clamping block 24 is rotatably arranged at the bottom of the clamping screw 23. The end of the plate profile away from the chassis 1 can be clamped between the clamping block 24 and the bottom wall of the discharge trough 21.

[0040] In order to drive the winding wheel 15 to rotate, refer to Figure 1 and Figure 2 The driving mechanism 4 includes a turntable 41, a lever 411, a driving motor 42, a rotating shaft 43, and a groove wheel 44. The turntable 41 and the rotating shaft 43 are symmetrically and rotatably arranged on the two side walls of the chassis 1 in the width direction. The turntables 41 located on both sides of the chassis 1 are connected by the same rotating shaft. The driving motor 42 is set as one and fixedly connected to the side wall of the chassis 1. The driving shaft of the driving motor 42 is coaxially fixed with the two turntables 41 through the rotating shaft, and the driving motor 42 is electrically connected to the control module. The driving motor 42 is a servo motor. The lever 411 is fixedly set at the end face of the turntable 41 deviating from the axis. The groove wheel 44 is fixedly connected to the rotating shaft 43. A plurality of radial grooves 441 are evenly opened in the circumferential direction of the groove wheel 44. The lever 411 can be inserted into the radial groove 441 and abut against the radial groove 441. The winding wheel 15 is installed on the rotating shaft 43.

[0041] Reference Figure 2 A locking round block 412 is fixedly arranged at the center of the end surface of the rotating disk 41, and a locking arc groove 442 is provided between two adjacent radial grooves 441 on the groove wheel 44. The locking round block 412 can be rotatably matched with any locking arc groove 442. A notch groove 4121 is provided on the peripheral wall of the locking round block 412 for the groove wheel 44 to pass over the locking round block 412, and the notch groove 4121 is directly opposite to the lever 411. In this embodiment, four radial grooves 441 are provided.

[0042] In order to facilitate the pull rope 151 to quickly disengage the winding wheel 15, refer to Figure 2 The winding wheel 15 rotates with the rotating shaft 43, and a plurality of locking holes 152 are evenly opened on the end surface of the winding wheel 15 along the circumferential direction. A locking plate 431 is fixedly arranged on the rotating shaft 43, and a locking bolt 432 is threadedly connected to the locking plate 431. The locking bolt 432 can extend into the locking hole 152 and abut against the locking hole 152.

[0043] In order to prevent the plate profile of the chassis 1 from extending too long toward the discharge port 12, refer to Figure 4 A movable platform 14 is provided on the side wall of the chassis 1 in the width direction. The movable platform 14 is located between the support platform 13 and the discharge port 12. The movable platform 14 is flush with the top of the support platform 13. A cutting gap is left between the movable platform 14 and the support platform 13 for the laser cutting head 331 to split the plate profile.

[0044] Reference Figure 4 and Figure 5, top blocks 141 are fixedly arranged on the two inner side walls in the width direction of the chassis 1, and the end of the movable platform 14 facing the discharge port 12 is rotatably connected to the chassis 1. A torsion spring is arranged at the rotation connection between the movable platform 14 and the chassis 1, and the torsion spring drives the movable platform 14 to abut against the top block 141. The bottom of the end of the movable platform 14 away from the discharge port 12 abuts against the top of the top block 141, and a tilting member is arranged in the chassis 1, and the tilting member is used to drive the movable platform 14 to deflect in a direction away from the top block 141.

[0045] Reference Figure 2 and Figure 5 The tipping member includes a movable push rod 18, an incomplete gear 413, and a push rack 181. The movable push rod 18 is arranged to slide vertically in the chassis 1. The top of the movable push rod 18 can be against the bottom of the movable platform 14. The push rack 181 is fixedly arranged on the movable push rod 18. The incomplete gear 413 is rotatably arranged in the chassis 1. The incomplete gear 413 is coaxially fixed with the turntable 41. A plurality of teeth 4131 are fixed on the peripheral wall of the incomplete gear 413, and the teeth 4131 can mesh with the gear. A rotating wheel 182 is rotatably arranged on the top of the movable push rod 18, and the movable push rod 18 is against the movable platform 14 through the rotating wheel 182. It is worth noting that when the teeth 4131 are meshed with the gear, the lever 411 disengages from the radial groove 441.

[0046] Reference Figure 1 The cabinet 1 is provided with a collecting box 5 on the side facing the discharge port 12. The cabinet 1 is provided with a receiving slot on the side facing the feed port 11. The receiving slot is located below the feed port 11. A receiving tray 6 is inserted into the receiving slot. The top wall of the cabinet 1 is also provided with an observation window 17. The implementation principle of a desktop small laser cutting machine in an embodiment of the present application is as follows: when cutting a plate profile, one end of the plate profile is fed into the chassis 1 from the feed port 11, so that the edges of both sides of the plate profile are placed on the support platform 13, and the other end of the plate profile is placed in the discharge trough 21 of the push platform 2, and the clamping screw 23 is rotated to drive the clamping block 24 to clamp and fix the plate profile.

[0047] The control module controls the movable mechanism 3 to drive the laser cutting head 331 to move, and the laser cutting head 331 cuts the plate profile on the support platform 13, cuts the required parts on the plate profile, and the parts fall into the receiving tray 6. When the plate profile on the support platform 13 is cut, the control module controls the drive motor 42 to start, and the drive motor 42 drives the turntable 41 to rotate, and the lever 411 on the turntable 41 is inserted into the radial groove 441 of the groove wheel 44 and drives the groove wheel 44 to rotate, thereby driving the winding wheel 15 to rotate the winding tension rope 151, pulling the push platform 2 to move in the direction close to the discharge port 12, and the push platform 2 drives the uncut part of the plate profile to enter the support platform 13. The cut part of the plate profile enters the movable platform 14.

[0048] Next, the control module controls the driving motor 42 to stop briefly, and controls the laser cutting head 331 and the cutting gap between the movable table 14 and the support table 13 to separate and pull down the cut portion of the plate profile from the uncut portion. The control module controls the turntable 41 to rotate again, and the turntable 41 drives the incomplete gear 413 to rotate. The teeth 4131 on the incomplete gear 413 mesh with the push rack 181, pushing the movable push rod 18 to move upward, and the rotating wheel 182 on the top of the movable push rod 18 pushes the movable table 14 to deflect away from the top block 141, and dumps the cut portion of the plate profile into the collection box 5. When the teeth 4131 on the incomplete gear 413 disengage from the push rack 181, the movable push rod 18 moves downward under the action of the torsion spring on the movable table 14 and its own gravity, and the movable table 14 is reset. The whole process realizes the continuous feeding cutting of the plate profile, improves the cutting efficiency and continuity, reduces manual operation, and reduces labor intensity.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A desktop small laser cutting machine, comprising a chassis (1), a control module, a propulsion platform (2), a movable mechanism (3), and a laser cutting head (331), wherein the laser cutting head (331) is movably arranged in the chassis (1) through the movable mechanism (3), and the movable mechanism (3) and the laser cutting head (331) are both electrically connected to the control module, and a feed port (11) is provided through one side wall of the chassis (1) in the longitudinal direction, characterized in that: The case (1) is provided with a discharge port (12) through the other side wall in the length direction, and a support platform (13) is provided on the two inner side walls in the width direction of the case (1); the laser cutting machine also includes a propulsion platform (2), the propulsion platform (2) slides in a direction approaching or moving away from the feed port (11), and the propulsion platform (2) is provided with a discharge trough (21) at the top facing the feed port (11), and the bottom wall of the discharge trough (21) is flush with the top of the support platform (13), and the case (1) A winding wheel (15) is rotatably arranged on the side wall in the width direction, a pulling rope (151) is arranged between the winding wheel (15) and the propulsion platform (2), one end of the pulling rope (151) is fixedly connected to the propulsion platform (2), and the other end of the pulling rope (151) is wound around the winding wheel (15), and a driving mechanism (4) is arranged on the chassis (1), and the driving mechanism (4) is used to drive the winding wheel (15) to rotate, and the driving mechanism (4) is electrically connected to the control module.

2. A desktop small laser cutting machine according to claim 1, characterized in that: An extendable or shortenable telescopic rod (16) is provided between the chassis (1) and the propulsion platform (2); one end of the telescopic rod (16) is fixedly connected to the chassis (1), and the other end of the telescopic rod (16) is fixedly connected to the propulsion platform (2).

3. A desktop small laser cutting machine according to claim 1, characterized in that: The driving mechanism (4) comprises a rotating disk (41), a lever (411), a driving motor (42), a rotating shaft (43), and a groove wheel (44); the rotating disk (41) and the rotating shaft (43) are both rotatably arranged on the side wall of the chassis (1) in the width direction; the driving motor (42) is fixedly connected to the chassis (1); the driving shaft of the driving motor (42) is coaxially fixed with the rotating disk (41); the driving motor (42) is electrically connected to a control module; the lever (411) is fixedly arranged at a position where the end face of the rotating disk (41) deviates from the axis; the groove wheel (44) is fixedly connected to the rotating shaft (43); a plurality of radial grooves (441) are evenly opened in the circumferential direction of the groove wheel (44); the lever (411) can be inserted into the radial grooves (441) and abut against the radial grooves (441); and the winding wheel (15) is mounted on the rotating shaft (43).

4. A desktop small laser cutting machine according to claim 3, characterized in that: A locking round block (412) is fixedly arranged at the center of the end surface of the rotating disk (41); a locking arc groove (442) is provided on the groove wheel (44) between two adjacent radial grooves (441); the locking round block (412) can be rotatably matched with any locking arc groove (442); a notch groove (4121) is provided on the peripheral wall of the locking round block (412) for the groove wheel (44) to pass over the locking round block (412); the notch groove (4121) is directly opposite to the shifting rod (411).

5. The desktop small laser cutting machine according to claim 3, characterized in that: The winding wheel (15) is rotatably matched with the rotating shaft (43); a plurality of locking holes (152) are evenly arranged on the end surface of the winding wheel (15) along the circumferential direction; a locking plate (431) is fixedly arranged on the rotating shaft (43); a locking bolt (432) is threadedly connected to the locking plate (431); and the locking bolt (432) can extend into the locking hole (152) and abut against the locking hole (152).

6. The desktop small laser cutting machine according to claim 3, characterized in that: The chassis (1) is provided with a movable platform (14) on the side wall in the width direction. The movable platform (14) is located between the support platform (13) and the discharge port (12). The movable platform (14) is flush with the top of the support platform (13). A cutting gap is left between the movable platform (14) and the support platform (13) for the laser cutting head (331) to split the plate profile.

7. A desktop small laser cutting machine according to claim 6, characterized in that: The chassis (1) is fixedly provided with top blocks (141) on the two inner side walls in the width direction; the movable platform (14) is rotatably connected to the chassis (1) at one end facing the discharge port (12); the bottom of the movable platform (14) at one end away from the discharge port (12) abuts against the top of the top block (141); a tilting member is provided in the chassis (1) and is used to drive the movable platform (14) to deflect in a direction away from the top block (141).

8. The desktop small laser cutting machine according to claim 7, characterized in that: The tipping member comprises a movable push rod (18), an incomplete gear (413), and a pushing rack (181); the movable push rod (18) is arranged to slide vertically in the case (1); the top of the movable push rod (18) can abut against the bottom of the movable platform (14); the pushing rack (181) is fixedly arranged on the movable push rod (18); the incomplete gear (413) is rotatably arranged in the case (1); the incomplete gear (413) is coaxially fixed with the turntable (41); a plurality of teeth (4131) are fixed on the peripheral wall of the incomplete gear (413); the teeth (4131) can mesh with the gear.

9. A desktop small laser cutting machine according to claim 8, characterized in that: A rotating wheel (182) is rotatably provided on the top of the movable push rod (18), and the movable push rod (18) abuts against the movable platform (14) via the rotating wheel (182).

10. The desktop small laser cutting machine according to claim 1, characterized in that: A mounting plate (22) is fixedly arranged on the side wall of the discharge trough (21), a clamping screw (23) is vertically and threadedly connected to the mounting plate (22), and a pressing block (24) is rotatably arranged at the bottom of the clamping screw (23).

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