Metal sign laser cutting device and method

Abstract

The application belongs to the technical field of laser processing, and particularly relates to a metal sign laser cutting device and method, which comprises a processing bin, a light source head for processing materials, a cross guide rail for controlling the precise movement of the light source head, a processing table arranged in the processing bin, the processing table being used for carrying the plate, the number of the processing tables being two, and the processing tables being slidably connected to a guide rail frame, one side of the guide rail frame protruding from the outside of the processing bin, a plate clamping device being hingedly connected to the discharge side of the processing table, the plate clamping device being used for clamping the plate, a turnover device being arranged on the side of the guide rail frame away from the processing bin, the turnover device being used for overturning the plate clamping device, the plate clamping device comprising a turnover frame, a rotating shaft one and a turnover gear, and a lower clamping plate being fixedly connected to the turnover frame. The application can ensure the processing efficiency of the machine through multiple processing tables, and can automatically clean the welding slag on the surface of the workbench.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of laser processing, and particularly relates to a metal sign laser cutting device and method. BACKGROUND

[0002] Metal signs are made of metal materials such as stainless steel, aluminum, copper and brass. They are known for their durability, customizability and professional appearance. Metal signs are widely used in various fields, including product identification, building identification, public place identification, enterprise identification, road identification, mechanical equipment identification, etc.

[0003] A laser cutting engraving machine is a device that uses a high-energy laser beam to cut and engrave materials. It focuses the laser beam to make the material rapidly melt, vaporize or be ablated under laser irradiation, thereby achieving precise cutting and engraving.

[0004] Since the size of the metal sign of the mechanical equipment is generally small, and the demand is large, and since the metal sign of the mechanical equipment is generally ablated with a code, the finished product of the sign needs to be processed in order when collecting, and the existing laser processing equipment is a single processing table, so the laser processing equipment needs to be stopped multiple times for the stacking of the plate and the finished product.

[0005] At the same time, some slag will be attached to the workbench during the laser cutting process, which is not convenient for subsequent cleaning. SUMMARY

[0006] The purpose of the present application is to provide a metal sign laser cutting device and method, which can ensure the processing efficiency of the machine through multiple processing tables, and can automatically clean the slag on the surface of the workbench.

[0007] The technical solutions adopted by the present application are as follows:

[0008] A metal sign laser cutting device, comprising a processing bin, a light source head for processing materials, and a cross guide rail for controlling the precise movement of the light source head, the processing bin is provided with a processing table, and the processing table is used to carry the plate;

[0009] The number of processing tables is two, and they are slidingly connected to the guide rail frame, and one side of the guide rail frame protrudes outward from the processing bin;

[0010] A plate clamping device is hinged to the discharge side of the processing table, and the plate clamping device is used to clamp the plate;

[0011] A turnover device is arranged on the side of the guide rail frame away from the processing bin, and the turnover device is used to turn over the plate clamping device;

[0012] The plate clamping device comprises a turnover frame, a rotating shaft one and a turnover gear, the turnover frame is fixedly connected with a lower clamping plate, the lower clamping plate is hingedly connected with an upper clamping plate, the upper clamping plate is provided with a drag gear on one side, the rotating shaft one is fixedly connected with a transition protrusion, and the drag gear corresponds to the transition protrusion;

[0013] The turnover device comprises a support table, the top of the support table is provided with an air cylinder, one side of the support table is provided with a sector gear plate, the sector gear plate corresponds to the turnover gear, the driving part of the air cylinder is provided with a sliding block one, and the sliding block one drives the sector gear plate to rotate;

[0014] The plate clamped on the lower clamping plate and the upper clamping plate is turned to the side away from the machining table by the sector gear plate driving the turnover gear to rotate, and the metal sign is left on the surface of the machining table.

[0015] The upper clamping plate is hingedly connected with a connecting block, the connecting block is rotationally connected with the lower clamping plate, and the drag gear is rotationally connected with the upper clamping plate;

[0016] The rotating shaft one is slidingly connected with a threaded rod two, the drag gear is in transmission connection with the threaded rod two, the outer edge surface of the threaded rod two is provided with a transition protrusion, and the transition protrusion divides the threaded rod two into a threaded groove two and a threaded groove three;

[0017] One end of the rotating shaft one is in transmission connection with a gear set two, and one side of the turnover frame is provided with a stepping motor for driving the gear set two to rotate.

[0018] Magnets are arranged on the lower clamping plate and the upper clamping plate, and the magnets exert forces away from each other on the lower clamping plate and the upper clamping plate.

[0019] The support table is slidingly connected with a sliding block two on one side, the sector gear plate is provided with a waist-shaped groove two, the protrusion on the sliding block two is clamped in the waist-shaped groove two, and the sliding block two is fixedly connected with the sliding block one.

[0020] The machining table comprises longitudinal frames, the longitudinal frames are slidingly connected to the guide rail frame, transverse frames are arranged between the longitudinal frames, and a plurality of plate support strips are arranged between the transverse frames;

[0021] The plate support strips are connected with the transverse frames through plate support strip fixing buckles;

[0022] The guide rail frame is provided with a rolling brush device protruding from the outside bottom of the machining bin;

[0023] The guide rail frame is provided with a belt wheel driver, and the longitudinal frames are fixedly connected with the transmission belt of the belt wheel driver.

[0024] The transverse frame is provided with a plurality of equidistantly distributed semicircular grooves near one side of the plate supporting strip, the plate supporting strip fixing buckle is slidably connected to the semicircular groove, and a control slider is arranged at a position corresponding to the semicircular groove in the transverse frame, a waist-shaped groove one is formed in the control slider, and the plate supporting strip fixing buckle is inserted through the waist-shaped groove one and slidably connected in the waist-shaped groove one.

[0025] A threaded rod one is rotatably connected in the transverse frame and is in transmission connection with the control slider, and a stepping motor two is arranged outside the transverse frame and provides power to the threaded rod one through a gear set one.

[0026] The plate supporting strip fixing buckles on the two sides of the plate supporting strip are two in number, one of the plate supporting strip fixing buckles is slidably arranged in the semicircular groove, and the other plate supporting strip fixing buckle is rotatably connected to the axis of the semicircular groove, a tight nut is threadedly connected to the side of the plate supporting strip fixing buckle away from the plate supporting strip, and the tight nut is used for tensioning the plate supporting strip.

[0027] The rolling brush device comprises a mounting frame, a rotating shaft two is rotatably connected to one side of the mounting frame, and a stepping motor three is arranged on one side of the mounting frame and provides power to the rotating shaft two.

[0028] A swing plate is slidably sleeved on the two sides of the rotating shaft two, and a steel wire rolling brush is rotatably connected to the side of the swing plate away from the rotating shaft two.

[0029] The stepping motor four drives the swing plate to swing through a chain wheel, and the rotating shaft two drives the steel wire rolling brush to rotate through a chain wheel.

[0030] The steel wire rolling brush corresponds to the bottom side of the plate supporting strip, and the steel wire rolling brush is used for rolling the side wall of the plate supporting strip.

[0031] A metal sign laser cutting method, comprising the following steps:

[0032] S1: placing the plate on the top of the processing table, and driving the lower clamp plate and the upper clamp plate to clamp the plate under the driving of the stepping motor;

[0033] S2: conveying the processing table provided with the plate into the processing chamber through the pulley driver;

[0034] S3: cutting and engraving the plate through the work of the light source head and the cross rail;

[0035] S4: taking the processed plate out of the processing chamber under the support of the processing table;

[0036] S5: the whole plate support bar is deflected by the working of the second stepping motor, so that the cut metal sign is separated from the plate, and the processed plate is quickly turned over under the working of the cylinder on the turning device, and the plate can be turned over and removed under the action of inertia;

[0037] S6: the taking and placing of the plate and the finished product are completed with the assistance of manual or mechanical hands;

[0038] S7: when the processing table works for a certain period of time, the sliding block is controlled to move to arrange the plate support bars horizontally, then the steel wire roller brush is swung by the fourth stepping motor and contacts the side wall of the plate support bar, and the steel wire roller brush is rolled on the side wall of the plate support bar under the working of the third stepping motor, and the whole processing table is dragged to move under the working of the pulley driver, so that the plate support bar is cleaned.

[0039] The technical effects obtained by the present application are:

[0040] In the present application, the sliding block is moved downward by the working of the cylinder, and the fan-shaped tooth plate is rotated, and the turning frame is turned over under the meshing transmission of the turning gear. Since the working gap of the cylinder is short, the turning interval of the whole turning frame is short, and the plate clamped by the lower clamp plate and the upper clamp plate has a certain inertia, so that the cut plate is turned over to the side away from the processing table, and the finished product and the plate to be processed are conveniently loaded and unloaded by manual or machine.

[0041] In the present application, the conventional clamping mechanism is limited by the clamping surface after turning over, and the plate is easily clamped in the gap between the clamps. In the present application, after the turning frame is turned over, the upper clamp plate is located below the lower clamp plate, the drag tooth is moved in the threaded groove two by the rotation of the threaded rod two, and the upper clamp plate is rotated around the connecting block until the upper clamp plate is separated from the limitation of the plate, so that the plate is separated from the whole plate clamping device under the action of gravity, and the waste plate is prevented from being clamped in the gap between the upper clamp plate and the lower clamp plate, while ensuring the subsequent placement of the plate.

[0042] In the present application, the gear set one and the threaded rod one are rotated by the second stepping motor, and the control sliding block is dragged to slide in the transverse frame, so that the plate support bar is fixedly buckled in the waist-shaped groove one and the semicircular groove under the guidance, and the plate support bar is deflected to the horizontal state, so as to facilitate the cleaning of the surface of the plate support bar, and cooperate with the working of the roller brush device to polish the plate in the horizontal plane, so as to ensure the flatness of the plate and improve the processing precision. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 is a structural schematic diagram of the present application;

[0044] Figure 2 is a plate clamping device in the present application Figure 1Figure 2 is a schematic diagram of the reverse structure of the processing table 2 in the present application;

[0045] Figure 3 Figure 3 is a schematic diagram of the structure of the processing table 2 in the present application;

[0046] Figure 4 Figure 4 is a schematic diagram of the structure of the plate clamping device 6 in the present application;

[0047] Figure 5 Figure 5 is a schematic diagram of the partial structure of the plate clamping device 6 in the present application;

[0048] Figure 6 Figure 6 is a schematic diagram of the partial expanded structure of the plate clamping device 6 in the present application;

[0049] Figure 7 Figure 7 is a schematic diagram of the structure of the turnover device 7 in the present application;

[0050] Figure 8 Figure 8 is a schematic diagram of the reverse structure of the processing table 2 in the present application; Figure 7

[0051] Figure 9 Figure 9 is a schematic diagram of the expanded structure of the transverse frame 203 and the internal structure in the present application;

[0052] Figure 10 Figure 10 is a schematic diagram of the A area of the processing table 2 in the present application; Figure 9

[0053] Figure 11 Figure 11 is a schematic diagram of the structure of the rolling brush device 8 in the present application.

[0054] In the drawings, the components represented by each reference numeral are listed as follows:

[0055] 1, processing warehouse;

[0056] 2, processing table; 201, longitudinal frame; 202, plate support strip; 203, transverse frame; 204, control slider; 205, semicircular groove; 206, plate support strip fixing buckle; 207, tension nut; 208, threaded rod one; 209, gear set one; 210, step motor two; 211, waist-shaped groove one;

[0057] 3, light source head;

[0058] 4, pulley driver;

[0059] 5, cross rail;

[0060] ​​6, plate clamping device; 601, turnover frame; 602, turnover gear; 603, gear set two; 604, shaft one; 605, threaded groove two; 606, transition block; 607, threaded groove three; 608, lower clamping plate; 609, upper clamping plate; 610, drag tooth; 611, connecting block; 612, magnet; 613, threaded rod two;

[0061] 7, turnover device; 701, air cylinder; 702, support table; 703, slider one; 704, slider two; 705, sector tooth plate; 706, waist-shaped groove two;

[0062] 8, rolling brush device; 801, installation frame; 802, shaft two; 803, stepper motor three; 804, steel wire rolling brush; 805, swing plate; 806, stepper motor four;

[0063] 9, guide rail frame. DETAILED DESCRIPTION

[0064] In order to make the purpose and advantages of the present application more clear and obvious, the present application is specifically described below in combination with examples. It should be understood that the following text is only used to describe one or several specific embodiments of the present application, and does not strictly limit the specific protection scope requested by the present application.

[0065] As shown in Figures 1-11 A metal sign laser cutting device, comprising a processing bin 1, a light source head 3 for processing materials, a cross guide rail 5 for controlling the precise movement of the light source head 3, a processing table 2 is arranged in the processing bin 1, and the processing table 2 is used to carry the plate;

[0066] The number of processing tables 2 is two, and they are slidingly connected to the guide rail frame 9, and one side of the guide rail frame 9 protrudes from the outside of the processing bin 1;

[0067] The discharge side of the processing table 2 is hingedly connected with a plate clamping device 6, and the plate clamping device 6 is used to clamp the plate;

[0068] The side of the guide rail frame 9 away from the processing bin 1 is provided with a turnover device 7, and the turnover device 7 is used to turn over the plate clamping device 6;

[0069] The plate clamping device 6 comprises a turnover frame 601, a shaft one 604, and a turnover gear 602, the turnover frame 601 is fixedly connected with a lower clamping plate 608, the lower clamping plate 608 is hingedly connected with an upper clamping plate 609, one side of the upper clamping plate 609 is provided with a drag tooth 610, the shaft one 604 is fixedly connected with a transition block 606, and the drag tooth 610 corresponds to the transition block 606;

[0070] The turnover device 7 comprises a support table 702, the top of the support table 702 is provided with a pneumatic cylinder 701, one side of the support table 702 is provided with a sector gear plate 705, the sector gear plate 705 corresponds to a turnover gear 602, the driving part of the pneumatic cylinder 701 is provided with a sliding block 703, and the sliding block 703 drives the sector gear plate 705 to rotate.

[0071] Further, the top of the support table 702 is provided with the pneumatic cylinder 701, one side of the support table 702 is provided with the sector gear plate 705, the driving part of the pneumatic cylinder 701 is provided with the sliding block 703, and the sliding block 703 drives the sector gear plate 705 to rotate.

[0072] The sector gear plate 705 drives the turnover gear 602 to rotate, so that the plate clamped on the lower clamping plate 608 and the upper clamping plate 609 is turned to the side away from the machining table 2, and the metal sign is left on the surface of the machining table 2.

[0073] Further, the top of the lower clamping plate 608 is provided with a positioning block, so as to ensure that the plate is flush on one side.

[0074] Further, the number of the lower clamping plate 608 is at least two, and the position of the lower clamping plate 608 can be adjusted.

[0075] Further, the extension time of the pneumatic cylinder 701 is less than the retraction time, the extension time can drive the turnover frame 601 to quickly turn over, one side of the turnover frame 601 is provided with a limiting buckle, and a supporting spring is arranged, which is used for buffering the impact force after turning over.

[0076] Further, the light source head 3 is provided with an electric push rod, which is used for controlling the gap between the light source head 3 and the machining table 2, and is also used for focusing.

[0077] According to the above structure, the upper clamping plate 609 is rotated and clamps the plate by supporting the drag tooth 610 through the rotation of the rotating shaft 604;

[0078] The sliding block 703 moves downward through the working of the pneumatic cylinder 701, drives the sector gear plate 705 to rotate, and drives the turnover frame 601 to turn over through the meshing transmission of the turnover gear 602. Since the working gap of the pneumatic cylinder 701 is short, the turnover interval of the turnover frame 601 as a whole is short, so that the plate clamped by the lower clamping plate 608 and the upper clamping plate 609 has a certain inertia, so that the cut plate is turned to the side away from the machining table 2, which is convenient for manual or machine to load and unload the finished product and the plate to be processed.

[0079] Referring to the drawings Figure 3 The machining table 2 comprises longitudinal frames 201, the longitudinal frames 201 are slidably connected to the guide frame 9, transverse frames 203 are arranged between the longitudinal frames 201, and a plurality of plate support strips 202 are arranged between the transverse frames 203.

[0080] The plate support strip 202 is connected with the transverse frame 203 through the plate support strip fixing buckle 206;

[0081] The guide rail frame 9 is provided with a rolling brush device 8 protruding from the outer bottom of the machining bin 1;

[0082] The guide rail frame 9 is provided with a belt drive 4, and the longitudinal frame 201 is fixedly connected with the transmission belt of the belt drive 4.

[0083] Further, the two belt drives 4 are connected with the two machining tables 2 through the adapter plate, so that a single belt drive 4 controls the sliding of a single machining table 2 on the guide rail frame 9.

[0084] Further, the belt drive 4 is composed of a stepping motor and a transmission belt group, and the machining table 2 is fixedly connected with the transmission belt to drive the machining table 2, and a pressure sensor can be added to control the moving position of the machining table 2.

[0085] According to the above structure, the machining table 2 is driven to slide under the guidance of the guide rail frame 9 through the work of the belt drive 4, so that the light source head 3 is always in working state, and the working efficiency is improved.

[0086] Referring to the accompanying drawings Figure 4 to the accompanying drawings Figure 6 The upper clamping plate 609 is hingedly connected with a connecting block 611, the connecting block 611 is rotationally connected with the lower clamping plate 608, and the drag tooth 610 is rotationally connected with the upper clamping plate 609;

[0087] The threaded rod two 613 is slidingly connected with the rotating shaft one 604, the drag tooth 610 is in transmission connection with the threaded rod two 613, the outer edge surface of the threaded rod two 613 is provided with a transition bump 606, and the transition bump 606 divides the threaded rod two 613 into a threaded groove two 605 and a threaded groove three 607;

[0088] The rotating shaft one 604 is in transmission connection with a gear set two 603 at one end, and the flip frame 601 is provided with a stepping motor for driving the gear set two 603 to rotate on one side.

[0089] The lower clamping plate 608 and the upper clamping plate 609 are provided with a magnet 612, and the magnet 612 applies a force away from each other to the lower clamping plate 608 and the upper clamping plate 609.

[0090] Further, the threaded groove two 605 and the threaded groove three 607 are used for guiding the drag tooth 610;

[0091] The transition bump 606 is used for supporting the drag tooth 610 and clamping the plate under the guidance of the connecting block 611 and the upper clamping plate 609;

[0092] The second thread groove 605 is used to drive the upper clamping plate 609 to rotate around the connecting block 611.

[0093] The third thread groove 607 is used to reset the drag tooth 610.

[0094] Further, the side of the upper clamping plate 609 away from the deflection direction is provided with an arc-shaped avoiding surface.

[0095] Further, the second thread groove 605 and the third thread groove 607 are partially staggered, which facilitates the third thread groove 607 to guide the drag tooth 610 to the reset position.

[0096] Further, the lower clamping plate 608 and the upper clamping plate 609 are under the repulsion, so that the surface of the drag tooth 610 and the surface of the second threaded rod 613 are always in contact.

[0097] According to the above structure, in the conventional clamping mechanism, after the turnover, the plate is easily clamped into the gap between the clamps due to the limiting of the clamping surface. In the present scheme, after the turnover of the turnover frame 601, the upper clamping plate 609 is located below the lower clamping plate 608. Through the rotation of the second threaded rod 613, the drag tooth 610 is in contact with the surface of the transition block 606 under the repulsion support of the magnet 612, so as to realize the clamping and removal of the plate. With the rotation of the second threaded rod 613 and the guidance of the third thread groove 607, the drag tooth 610 is engaged with the second thread groove 605, and under the guidance of the second thread groove 605, the drag tooth 610 moves in the second thread groove 605, and the upper clamping plate 609 rotates around the connecting block 611 until the upper clamping plate 609 is limited to disengage from the plate, so that the plate is separated from the plate clamping device 6 as a whole under the weight.

[0098] Referring to the accompanying drawings Figure 7 and the accompanying drawings Figure 8 , one side of the support table 702 is slidably connected with a sliding block 704, a waist-shaped groove 706 is formed on the fan-shaped tooth plate 705, and the protrusion on the sliding block 704 is clamped in the waist-shaped groove 706. The sliding block 704 is fixedly connected with the sliding block 703.

[0099] Further, the turnover frame 601 is in contact with the surface of the machining table 2 through the magnet 612, so that when the turnover gear 602 on the plate clamping device 6 is in contact with the fan-shaped tooth plate 705, the fan-shaped tooth plate 705 is engaged with the turnover gear 602.

[0100] Further, the distance between the sliding block 704 and the rotation axis of the fan-shaped tooth plate 705 can be adjusted to control the rotation speed of the fan-shaped tooth plate 705.

[0101] According to the above structure, the convex block on the slider two 704 slides in the waist-shaped groove two 706 through the sliding of the slider two 704, drags the overall rotation of the sector tooth plate 705, drives the rotation of the turnover gear 602 on one side, and realizes the overall turnover of the turnover frame 601.

[0102] Referring to the drawings Figure 9 and the drawings Figure 10 The transverse frame 203 is provided with a plurality of equidistantly distributed semicircular grooves 205 near one side of the plate supporting strip 202, and the plate supporting strip fixing buckles 206 are slidingly connected to the semicircular grooves 205; the transverse frame 203 is provided with regulating sliding blocks 204 at positions corresponding to the semicircular grooves 205, and the plate supporting strip fixing buckles 206 pass through the waist-shaped grooves one 211 and are slidingly connected in the waist-shaped grooves one 211;

[0103] The transverse frame 203 is provided with a plurality of equidistantly distributed semicircular grooves 205 near one side of the plate supporting strip 202, and the plate supporting strip fixing buckles 206 are slidingly connected to the semicircular grooves 205; the transverse frame 203 is provided with regulating sliding blocks 204 at positions corresponding to the semicircular grooves 205, and the plate supporting strip fixing buckles 206 pass through the waist-shaped grooves one 211 and are slidingly connected in the waist-shaped grooves one 211;

[0104] The plate supporting strip fixing buckles 206 on both sides of the plate supporting strip 202 are two in number, one plate supporting strip fixing buckle 206 slides in the semicircular groove 205, and the other plate supporting strip fixing buckle 206 is rotatably connected to the axis of the semicircular groove 205; the plate supporting strip fixing buckle 206 in the plate supporting strip fixing buckle 206 is threadedly connected with a tension nut 207 away from one side of the plate supporting strip 202, and the tension nut 207 is used to tension the plate supporting strip 202.

[0105] Further, a ball groove can be formed on the regulating sliding block 204, and cooperates with a pressure sensor to realize the control of the moving state of the plate supporting strip 202.

[0106] Further, the plate supporting strip fixing buckle 206 is pulled by tightening the tension nut 207, so as to ensure that the plate supporting strip 202 is in a tension state, and the surface of the plate supporting strip 202 is convenient to clean.

[0107] According to the above structure, since metal sputtering is generated in the process of metal cutting and is easy to adhere to the surface of the plate supporting strip 202, and the plate supporting strip 202 is in a vertical state and has a small interval, it is difficult to clean the surface of the plate supporting strip 202. Therefore, the stepping motor two 210 drives the gear set one 209 and the threaded rod one 208 to rotate, and drags the control slider 204 to slide in the transverse frame 203, so that the plate supporting strip fixing buckle 206 is guided by the waist-shaped groove one 211 and the semicircular groove 205, and the plate supporting strip 202 is deflected to a horizontal state, thereby facilitating the cleaning of the surface of the plate supporting strip 202, and the plate supporting strip 202 can be turned over on both sides under the guidance of the semicircular groove 205, avoiding the existence of cleaning dead angle.

[0108] At the same time, when the plate supporting strip 202 is deflected, the top of the plate supporting strip 202 moves downward with the deflection, so that the metal sign after cutting is separated from the plate, which is convenient for subsequent removal of the plate.

[0109] Referring to the accompanying drawings Figure 11 The rolling brush device 8 comprises a mounting frame 801, one side of the mounting frame 801 being rotatably connected with a second rotating shaft 802, one side of the mounting frame 801 being provided with a stepping motor three 803, and the stepping motor three 803 providing power to the second rotating shaft 802.

[0110] The second rotating shaft 802 is slidably sleeved with a swing plate 805 on both sides, and the swing plate 805 is rotatably connected with a steel wire rolling brush 804 away from the second rotating shaft 802.

[0111] The stepping motor four 806 drives the swing plate 805 to swing through a chain wheel, and the second rotating shaft 802 drives the steel wire rolling brush 804 to rotate through a chain wheel.

[0112] The steel wire rolling brush 804 corresponds to the bottom side of the plate supporting strip 202, and the steel wire rolling brush 804 is used for rolling the side wall of the plate supporting strip 202.

[0113] Further, the stepping motor four 806 is used for adjusting the inclination angle of the steel wire rolling brush 804 to ensure that the steel wire rolling brush 804 is in contact with the surface of the plate supporting strip 202.

[0114] Further, the stepping motor three 803 is used for driving the steel wire rolling brush 804 to rotate, so as to ensure that the steel wire rolling brush 804 polishes the surface of the plate supporting strip 202.

[0115] Further, the surface of the steel wire rolling brush 804 is densely covered with metal wires.

[0116] According to the above structure, according to the polishing of the processing table 2, the working of the step motor four 806 is controlled, so that the swing plate 805 is deflected by a certain angle, and the steel wire roller brush 804 is in contact with the surface of the plate supporting strip 202, at this time, under the working of the step motor three 803, the steel wire roller brush 804 is driven to rotate, and the processing table 2 is dragged to move by the belt wheel driver 4 to realize the polishing of the processing table 2, and each process is controlled by the motor, so as to realize the surface slag cleaning of the corresponding processing table 2, so as to ensure the flatness of the end of the plate supporting strip 202 and ensure the processing precision.

[0117] A metal sign laser cutting method, comprising the following steps:

[0118] S1: placing the plate on the top of the processing table 2, and driving the lower clamp plate 608 and the upper clamp plate 609 to clamp the plate under the driving of the step motor;

[0119] S2: conveying the processing table 2 provided with the plate into the processing chamber 1 by the belt wheel driver 4;

[0120] S3: cutting and engraving the plate by the working of the light source head 3 and the cross rail 5;

[0121] S4: taking the processed plate out of the processing chamber 1 under the support of the processing table 2;

[0122] S5: deflection of the plate supporting strip 202 as a whole by the working of the step motor two 210, so that the cut metal sign is separated from the plate, and the processed plate is quickly turned over under the working of the cylinder 701 on the turnover device 7, and the plate can be turned over and removed under the action of inertia;

[0123] S6: then the taking and placing of the plate and the finished product are completed with the assistance of manual or mechanical hand;

[0124] S7: when the processing table 2 works for a certain time, the horizontal arrangement of each plate supporting strip 202 is realized by adjusting and controlling the movement of the sliding block 204, then the swing of the steel wire roller brush 804 is driven by the step motor four 806, and the steel wire roller brush 804 is in contact with the side wall of the plate supporting strip 202, and the side wall of the plate supporting strip 202 is brushed by the steel wire roller brush 804 under the working of the step motor three 803, then the whole processing table 2 is dragged to move under the working of the belt wheel driver 4, so as to realize the cleaning of the plate supporting strip 202.

[0125] The working principle of the present application is that the convex block on the slider two 704 slides in the waist-shaped groove two 706 through the sliding of the slider two 704, and drags the overall rotation of the sector tooth plate 705, and makes the turnover frame 601 overturn under the meshing transmission of the turnover gear 602. Since the working gap of the air cylinder 701 is short, the overall turnover interval of the turnover frame 601 is short, so that the plate clamped by the lower clamp plate 608 and the upper clamp plate 609 has a certain inertia, so that the cut plate is turned to the side away from the machining table 2, which is convenient for manual or machine loading and unloading of finished products and plate to be processed.

[0126] The gear set one 209 and the threaded rod one 208 are driven to rotate by the stepping motor two 210, and the control sliding block 204 is dragged to slide in the transverse frame 203, so that the plate support strip fixing buckle 206 is guided under the waist-shaped groove one 211 and the semicircular groove 205, so that the plate support strip 202 is deflected to a horizontal state. At the same time, according to the polishing of the machining table 2, the working of the stepping motor four 806 is controlled, so that the swing plate 805 is deflected by a certain angle, and the steel wire roller brush 804 is in contact with the surface of the plate support strip 202 in the horizontal state. At this time, under the working of the stepping motor three 803, the steel wire roller brush 804 is driven to rotate, and the machining table 2 is dragged to move by the belt pulley driver 4 to realize polishing of the machining table 2, so as to facilitate cleaning of the surface of the plate support strip 202. At the same time, under the guidance of the semicircular groove 205, the plate support strip 202 on both sides can be turned over, avoiding the existence of cleaning dead angle.

[0127] The above is only the preferred embodiment of the present application, it should be pointed out that, for the ordinary skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as no special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A laser cutting device for metal signs, comprising a processing chamber (1), a light source head (3), and a cross guide rail (5), characterized in that: The processing chamber (1) is equipped with a processing table (2), which is used to support the sheet metal. The processing table (2) is slidably connected to the guide rail frame (9), and one side of the guide rail frame (9) protrudes out of the outside of the processing chamber (1); The processing table (2) is hinged to a plate clamping device (6) on the discharge side. A flipping device (7) is provided on the side of the guide rail frame (9) away from the processing chamber (1). The plate clamping device (6) includes a flipping frame (601) and a flipping gear (602). A plate clamp is fixedly connected to the flipping frame (601). The plate clamp consists of an upper clamping plate (609) and a lower clamping plate (608), which are hinged together. A transition protrusion (606) is rotatably connected to the flipping frame (601). The transition protrusion (606) is used to support the upper clamping plate (609) to clamp the plate. The flipping device (7) includes a cylinder (701) and a support platform (702). The cylinder (701) is used to drive the sector tooth plate (705) on one side of the support platform (702) to rotate. The sector tooth plate (705) corresponds to the flipping gear (602). The cylinder (701) drives the flipping frame (601) to flip as a whole. A drag tooth (610) is provided on one side of the upper clamping plate (609), the drag tooth (610) is rotatably connected to the upper clamping plate (609), and a connecting block (611) is hinged on the upper clamping plate (609), the connecting block (611) is rotatably connected to the lower clamping plate (608). The tilting frame (601) is rotatably connected to a rotating shaft (604), and a threaded rod (613) is slidably connected to the rotating shaft (604). The dragging tooth (610) is connected to the threaded rod (613) in a transmission connection. The outer surface of the threaded rod (613) is provided with a transition protrusion (606), which divides the threaded rod (613) into a threaded groove (605) and a threaded groove (607). One end of the rotating shaft (604) is connected to the gear set (603), and a stepper motor for driving the gear set (603) to rotate is provided on one side of the flipping frame (601).

2. The laser cutting device for metal signs according to claim 1, characterized in that: Magnets (612) are provided on the lower clamping plate (608) and the upper clamping plate (609), and the magnets (612) exert opposing forces on the lower clamping plate (608) and the upper clamping plate (609).

3. The laser cutting device for metal signs according to claim 1, characterized in that: A second slider (704) is slidably connected to one side of the support platform (702). A second waist-shaped groove (706) is provided on the fan-shaped toothed plate (705). The protrusion on the second slider (704) is engaged in the second waist-shaped groove (706). A first slider (703) is provided on the driving part of the cylinder (701). The second slider (704) is fixedly connected to the first slider (703).

4. The laser cutting device for metal signs according to claim 1, characterized in that: The processing table (2) includes a longitudinal frame (201), which is slidably connected to the guide rail frame (9). A transverse frame (203) is provided between the longitudinal frames (201), and a plurality of plate support strips (202) are provided between the transverse frames (203). The plate support strip (202) is connected to the transverse frame (203) through the plate support strip fixing buckle (206); The guide rail frame (9) protrudes from the outer bottom of the processing chamber (1) and is equipped with a roller brush device (8). The guide rail frame (9) is equipped with a pulley driver (4), and the longitudinal frame (201) is fixedly connected to the transmission belt of the pulley driver (4).

5. The laser cutting device for metal signs according to claim 4, characterized in that: The transverse frame (203) has multiple equally spaced semicircular grooves (205) on the side near the plate support strip (202). The plate support strip fixing buckle (206) is slidably connected to the semicircular groove (205). An adjustment slider (204) is provided in the transverse frame (203) at the position corresponding to the semicircular groove (205). The adjustment slider (204) has a waist-shaped groove (211). The plate support strip fixing buckle (206) passes through the waist-shaped groove (211) and is slidably connected in the waist-shaped groove (211). A threaded rod (208) is rotatably connected inside the transverse frame (203). The threaded rod (208) is connected to the control slider (204) via a transmission. A stepper motor (210) is provided on the outside of the transverse frame (203). The stepper motor (210) provides power to the threaded rod (208) through a gear set (209).

6. The laser cutting device for metal signs according to claim 5, characterized in that: The number of plate support bar fixing buckles (206) on both sides of the plate support bar (202) is two. One of the plate support bar fixing buckles (206) slides in the semi-circular groove (205), and the other plate support bar fixing buckle (206) is rotated and locked at the axis of the semi-circular groove (205). The plate support bar fixing buckle (206) located in the plate support bar fixing buckle (206) is threaded with a tension nut (207) on the side away from the plate support bar (202). The tension nut (207) is used to tighten the plate support bar (202).

7. The laser cutting device for metal signs according to claim 6, characterized in that: The roller brush device (8) includes a mounting frame (801) and a stepper motor (806). A rotating shaft (802) is rotatably connected to one side of the mounting frame (801), and a stepper motor (803) is provided on one side of the mounting frame (801). The stepper motor (803) provides power to the rotating shaft (802). The two sides of the rotating shaft (802) are slidably sleeved with swing plates (805), and the side of the swing plate (805) away from the rotating shaft (802) is rotatably connected to a wire roller brush (804). The stepper motor four (806) drives the swing plate (805) to swing through the sprocket, and the rotating shaft two (802) drives the wire roller brush (804) to rotate through the sprocket.

8. The laser cutting device for metal signs according to claim 7, characterized in that: The wire roller brush (804) corresponds to the bottom side of the plate support strip (202), and the wire roller brush (804) is used to brush the side wall of the plate support strip (202).

9. A method for laser cutting metal signs, using any one of the metal sign laser cutting apparatuses as described in claims 1-8, characterized in that, Includes the following steps: S1: Place the plate on top of the processing table (2), and drive the lower clamping plate (608) and the upper clamping plate (609) to clamp the plate under the drive of the stepper motor; S2: The processing table (2) with the plate material is driven by the pulley drive (4) and transported into the processing chamber (1); S3: The plate is cut and engraved by the operation of the light source head (3) and the cross guide rail (5); S4: The processed board is carried out of the processing chamber (1) under the support of the processing table (2). S5: The stepper motor (210) causes the plate support bar (202) to deflect as a whole, thereby causing the cut metal sign to separate from the plate. Under the operation of the cylinder (701) on the flipping device (7), the processed plate is quickly flipped, and under the action of inertia, the plate can be flipped and removed. S6: Then, with the assistance of manual labor or robotic arms, the handling of boards and finished products is completed; S7: After the processing table (2) has been working for a certain period of time, the sliding block (204) is adjusted to make each plate support bar (202) horizontally arranged. Then, the stepper motor four (806) drives the wire roller brush (804) to swing and contact the side wall of the plate support bar (202). Under the operation of the stepper motor three (803), the wire roller brush (804) brushes the side wall of the plate support bar (202). Then, under the operation of the pulley driver (4), the processing table (2) is dragged to move as a whole, thereby cleaning the plate support bar (202).

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