Laser cutting equipment

Abstract

The utility model relates to the technical field of laser cutting, and discloses laser cutting equipment which comprises a rack, a cutting assembly, a waste recovery assembly and at least three conveying belt units, and the cutting assembly, the waste recovery assembly and the at least three conveying belt units are arranged on the rack. The multiple conveying belt units are sequentially arranged, the interval between every two adjacent conveying belt units is a cutting seam, and the ends of the conveying belt units move in the x direction through the moving assembly. The cutting assembly moves in the cutting seam in the x direction through the moving assembly. The waste recovery assembly is arranged below the kerf, and the collection area of the waste recovery assembly covers the moving interval of the kerf. According to the scheme, workpieces are conveyed through the conveying belt unit, the end of the conveying belt unit is movable, the length of a conveying interval and the position or width of a kerf are changed by moving the end of the conveying belt, blanking is facilitated by changing the position and width of the kerf, the cutting assembly is used for cutting the workpieces, and the cutting assembly is located in the kerf. And the moving interval in the x direction is the width of the kerf, and the waste recovery assembly is used for collecting fallen materials of the kerf.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting technical field especially relates to a laser cutting equipment. BACKGROUND

[0002] The laser cutting equipment is a kind of machine using high-power laser beam to cut, engrave or mark material.Laser cutting is widely used in manufacturing, automobile, aerospace, electronics, electrical appliances, handicrafts and other fields due to its precision, high efficiency and high automation level.Laser cutting equipment has the advantages of high precision, high speed, strong flexibility and non-contact processing.Laser cutting equipment plays an important role in industrial automation and has wide market demand and application prospect.The conventional laser cutting equipment moves workpiece by conveying device, and laser cutting head cuts material.

[0003] Chinese patent CN202123420179.0 discloses a belt type laser follow-up cutting equipment and a multi-head laser blanking equipment, the cutting equipment comprises: a support body, two sides of the support body are provided with follow-up rails arranged in parallel with each other; a laser cutting head arranged on the support body; an X-axis moving unit slidingly connected to the support body, used to drive the laser cutting head to slide along the follow-up rails; a servo unit arranged on the X-axis moving unit; two groups of belt conveying units arranged on the support body, used to drive workpieces to move along the X-axis direction; a follow-up unit slidingly connected to the support body, used to drive the belt conveying units to slide along the follow-up rails to drive the belt conveying units to move synchronously with the X-axis moving unit; a control part; the utility model cuts workpieces by using dynamic cutting technology, thereby improving cutting efficiency.The scheme needs to be improved.

[0004] The utility model overcomes the shortcomings of prior art, provides a kind of laser cutting equipment, with the advantage that cutting is flexible. UTILITY MODEL CONTENT

[0005] The utility model mainly aims at providing a kind of laser cutting equipment, including rack, and cutting assembly, waste recovery component and at least three conveying belt units arranged on the rack;

[0006] A plurality of conveying belt units are sequentially arranged, and the interval between adjacent conveying belt units is a cutting gap, and the end of the conveying belt unit moves along the x direction through a moving assembly, and the width or position of the cutting gap is changed by the movement of the end of the conveying belt unit;

[0007] The cutting assembly is arranged above the cutting gap, and the cutting assembly moves along the x direction in the cutting gap through the moving assembly;

[0008] The waste recycling assembly is arranged below the cutting slot, a collection area of the waste recycling assembly covers a moving interval of the cutting slot, and the waste recycling assembly is used for recycling waste.

[0009] Optionally, the conveying belt unit comprises a telescopic support, a conveying belt, a power assembly, a tensioning assembly and first support rollers, the telescopic support is arranged on the rack, the first support rollers are arranged at the two ends of the telescopic support respectively, the telescopic support drives the first support rollers at the two ends to move close to or away from each other, or the telescopic support drives the first support roller at one end to move close to or away from the first support roller at the other end.

[0010] The conveying belt surrounds the first support rollers at the two ends of the telescopic support, and the power assembly drives the conveying belt to move along the first support rollers.

[0011] The tensioning assembly is arranged on the rack, the tensioning assembly acts on the conveying belt to keep the conveying belt in a tensioned state when conveying workpieces, and the tensioning assembly is used for deviation correction of the conveying belt.

[0012] Optionally, the moving assembly comprises a linear motor, a guide rail and a moving block, the guide rail is arranged on the two sides of the rack and located on the two sides of the conveying belt unit, and is arranged in parallel with the x direction, the moving block is slidably connected with the guide rail through a sliding block, the linear motor is in transmission connection with the moving block, the linear motor drives the moving block to move along the guide rail, and the moving block is connected with the end of the conveying belt unit.

[0013] Optionally, the upper side of the telescopic support is a conveying interval of the conveying belt, the lower side of the telescopic support is a buffer interval of the conveying belt, the conveying belt surrounds the conveying interval and the buffer interval, the tensioning assembly and the power assembly are located below the telescopic support, the tensioning assembly and the power assembly act on the conveying belt in the buffer interval, the end of the telescopic support is connected with the moving block, and the telescopic support is driven to extend or retract through the moving block moving along the guide rail.

[0014] Optionally, the tensioning assembly comprises a moving roller, a first linear guide rail, a connecting plate and a first motor, the first motor is arranged on the rack, an output end of the first motor is connected with the connecting plate, the connecting plate is provided with the moving roller, the moving roller is wound around the conveying belt located in the buffer interval, and the connecting plate is slidably connected with the first linear guide rail; the first linear guide rail is arranged in parallel with the x direction, and the first motor drives the conveying belt wound around the moving roller to move in the x direction.

[0015] Optionally, the conveying belt unit comprises a first conveying belt unit and a second conveying belt unit, one end of the first conveying belt unit is a movable end, the other end is a fixed end, both ends of the second conveying belt unit are movable ends, and the movable ends are telescopically movable through the moving assembly; the second conveying belt unit is located between the first conveying belt units, and the movable ends of the first conveying belt units are arranged adjacent to the movable ends of the second conveying belt unit.

[0016] Optionally, the cutting assembly comprises a laser head and a support beam, the support beam spans both sides of the conveying belt, the support beam is arranged in parallel with the y direction, the laser head is arranged on the support beam, the support beam supports the laser head above the cutting slot, and the laser head moves on the support beam in the y direction.

[0017] Optionally, the cutting assembly comprises a laser head and a support beam, the support beam spans both sides of the conveying belt, the support beam is arranged in parallel with the y direction, the laser head is arranged on the support beam, the support beam supports the laser head above the cutting slot, and the laser head moves on the support beam in the y direction.

[0018] Optionally, the cutting assembly comprises a laser head and a support beam, the support beam spans both sides of the conveying belt, the support beam is arranged in parallel with the y direction, the laser head is arranged on the support beam, the support beam supports the laser head above the cutting slot, and the laser head moves on the support beam in the y direction.

[0019] Optionally, the cutting assembly comprises a laser head and a support beam, the support beam spans both sides of the conveying belt, the support beam is arranged in parallel with the y direction, the laser head is arranged on the support beam, the support beam supports the laser head above the cutting slot, and the laser head moves on the support beam in the y direction.

[0020] Compared with the prior art, the laser cutting equipment has the following beneficial effects:

[0021] The laser cutting equipment provided by the utility model, through the conveying belt unit, workpieces are conveyed, the end of the conveying belt unit is movable, the conveying interval length and the position or width of the cutting slot are changed by moving the conveying belt end, the position and width of the cutting slot are changed to facilitate blanking, the cutting assembly is used for workpiece cutting, the cutting assembly is located in the cutting slot, the moving interval in the x direction is the width of the cutting slot, and the waste recovery assembly is used for collecting blanking of the cutting slot. BRIEF DESCRIPTION OF DRAWINGS

[0022] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and not intended to be limiting of the embodiments, and in which like- referenced numerals designate similar elements throughout the figures. The figures are not necessarily to scale, the emphasis instead being placed upon illustrating the principles of the embodiments.

[0023] Figure 1 A schematic view of a laser cutting device according to an embodiment of the application;

[0024] Figure 2 A partial enlarged view of the laser cutting device according to an embodiment of the application at position A;

[0025] Figure 3 A schematic view of a laser cutting device according to an embodiment of the application with hidden conveyor belts;

[0026] Figure 4 A partial enlarged view of the laser cutting device according to an embodiment of the application at position B;

[0027] Figure 5 A schematic view of a laser cutting device according to an embodiment of the application with multiple conveyor belt units;

[0028] Figure 6 A partial enlarged view of the laser cutting device according to an embodiment of the application at position C;

[0029] Figure 7 A schematic view of a laser cutting device according to an embodiment of the application with a conveyor belt unit;

[0030] Figure 8 A schematic view of a laser cutting device according to an embodiment of the application with a waste recycling assembly;

[0031] Figure 9 A schematic view of a laser cutting device according to an embodiment of the application with a slit sealing assembly.

[0032] Reference signs:

[0033] 100 - rack; 200 - conveyor belt unit; 210 - telescopic support; 211 - fixed support; 212 - movable support; 213 - movable crossbar; 220 - conveyor belt; 230 - power assembly; 231 - support; 232 - second motor; 233 - driving roller; 234 - buffer roller; 240 - tensioning assembly; 241 - movable roller; 242 - first linear guide rail; 243 - connecting plate; 244 - first motor; 250 - first support roller; 260 - support roller set; 261 - second support roller; 270 - first conveyor belt unit; 280 - second telescopic belt unit; 300 - moving assembly; 310 - linear motor; 320 - guide rail; 321 - first guide rail; 322 - second guide rail; 323 - limiting baffle; 330 - moving block; 340 - sliding block; 400 - cutting assembly; 410 - laser head; 420 - support crossbeam; 500 - waste recycling assembly; 510 - collection hopper; 511 - dust suction port; 520 - transport trolley; 530 - support seat; 540 - guide strip; 600 - slot sealing assembly; 610 - sealing strip; 620 - servo motor; 630 - speed reducer; 640 - second linear guide rail; 650 - gear; 660 - rack. DETAILED DESCRIPTION

[0034] For the convenience of understanding the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", "inner", "outer" and similar expressions used in the specification are for the purpose of illustration only. In the description of the present application, the terms "first", "second" are used only for the purpose of description and cannot be understood as indicating relative importance or implying the number of the indicated technical features. Therefore, unless otherwise specified, the features with "first", "second" can explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "comprising" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof can be present or added.

[0035] Furthermore, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. All technical and scientific terms used in the specification are the same as the meanings commonly understood by the skilled in the technical field to which the utility model belongs. The terms used in the specification of the utility model are only for the purpose of describing the specific embodiments and are not applicable to limit the utility model. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0036] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as there is no conflict between them.

[0037] As Figures 1-9 indicated, an embodiment of the laser cutting equipment provided by the utility model is shown.

[0038] Please refer to Figures 1-9 , the embodiment is used to realize laser cutting of workpieces, comprising a rack 100, at least three conveyor belt units 200, a moving assembly 300, a cutting assembly 400 and a waste recycling assembly 500. The conveyor belt unit 200 is arranged on the rack 100, the moving assembly 300 is arranged on both sides of the rack and located on both sides of the conveyor belt unit 200, the moving assembly 300 is connected with the end of the conveyor belt unit 200 and the cutting assembly 400, and drives the end of the conveyor belt unit 200 or the cutting assembly 400 to move. The waste recycling assembly 500 is arranged on the rack 100.

[0039] The plurality of conveyor belt units 200 are arranged in sequence, the interval between adjacent conveyor belt units 200 is a cutting gap, the end of the conveyor belt unit 200 moves along the x direction through the moving assembly 300, and the width or position of the cutting gap is changed by the movement of the end of the conveyor belt unit 200. The cutting assembly 400 is arranged above the cutting gap, and the cutting assembly 400 moves along the x direction in the cutting gap through the moving assembly 300. The waste recycling assembly 500 is arranged below the cutting gap, the collection area of the waste recycling assembly 500 covers the movement interval of the cutting gap, and the waste recycling assembly 500 is used for recycling waste.

[0040] In an embodiment, the conveying belt unit 200 comprises a telescopic support 210, a conveying belt 220, a power assembly 230, a tensioning assembly 240 and first support rollers 250. The telescopic support 210 is arranged on the rack 100, and the first support rollers 250 are arranged at the two ends of the telescopic support 210 respectively. The telescopic support 210 drives the two first support rollers 250 to move closer to or farther away from each other, or drives one first support roller 250 to move closer to or farther away from the other first support roller 250. The conveying belt 220 is wound around the first support rollers 250 at the two ends of the telescopic support 210, and the power assembly 230 drives the conveying belt 220 to move along the first support rollers 250. The tensioning assembly 240 is arranged on the rack 100, and the tensioning assembly 240 acts on the conveying belt 220 to keep the conveying belt 220 in a tensioned state when conveying workpieces, and the tensioning assembly 240 is also used for correcting the deviation of the conveying belt 220.

[0041] In an embodiment, the moving assembly 300 comprises a linear motor 310, guide rails 320 and a moving block 330 (equivalent to the mover of the linear motor). The guide rails 320 are arranged on both sides of the rack 100 and are located on both sides of the conveying belt unit 200, and are arranged in parallel with the x direction. The moving block 330 is slidingly connected to the guide rails 320 through sliding blocks 340. The linear motor 310 is drivingly connected to the moving block 330, and the linear motor 310 drives the moving block 330 to move along the guide rails 320. The moving block 330 is connected to the end of the conveying belt unit 200.

[0042] The guide rails 320 comprise first guide rails 321 and second guide rails 322. The first guide rails 321 are arranged on the horizontal plane on both sides of the rack 100, and the second guide rails 322 are arranged on the vertical plane on both sides of the rack 100. The moving block 330 has an L-shaped structure. The horizontal plane of the moving block 330 is slidingly connected to the first guide rails 321 through the sliding blocks 340, and the vertical plane of the moving block 330 is slidingly connected to the second guide rails 322 through the sliding blocks 340. The second guide rails 322 are in the form of multiple parallel rails. Specifically, the number of the first guide rails 321 is one, and the number of the second guide rails 322 is two. The arrangement of the first guide rails 321 and the second guide rails 322 makes the movement of the moving block 330 more stable. The sliding blocks 340 are actually arranged in the moving block 330. Since the moving block 330 will block the sliding blocks 340, the sliding blocks 340 are shown separately from the moving block 330 for convenience.

[0043] Further, the second guide rails 322 are provided with limiting baffle plates 323 at the two ends thereof for limiting the movement range of the end of the conveying belt unit 200. The length of the first guide rails 321 is greater than the length of the second guide rails 322. Specifically, the length of the first guide rails 321 matches the length of the rack 100, and the moving blocks 330 connected to the ends of multiple conveying belt units 200 can share the first guide rails 321 for movement.

[0044] In an embodiment, the upper side of the telescopic support 210 is the conveying section of the conveying belt 220, and the lower side of the telescopic support 210 is the buffer section of the conveying belt. The conveying belt 220 is arranged around the conveying section and the buffer section. The tensioning assembly 240 is arranged below the telescopic support 210 and acts on the conveying belt 220 to tension the conveying belt 220. The power assembly 230 is in driving connection with the conveying belt 220 to drive the conveying belt 220 to move around the telescopic support 210. The end of the telescopic support 210 is connected with the moving block 330, and the telescopic support 210 is driven to extend or retract by moving the moving block 330 along the guide rail 320. The conveying belt 220 in the conveying section is used for conveying workpieces, and the conveying belt 220 in the buffer section is used for buffering the conveying belt 220. The conveying belt 220 is folded and wound in an S shape in the buffer section.

[0045] The telescopic support 210 changes the length of the conveying section by changing the distance between the first support rollers 250 at the two ends of the telescopic support 210. The distance between the first support rollers 250 between adjacent conveying belt units 200 can be adjusted to change the width and position of the slits. The telescopic support 210 includes a plurality of parallel fixed supports 211, a plurality of parallel movable supports 212, and a moving cross bar 213. The fixed supports 211 and the movable supports 212 are arranged alternately and are fixed to the rack 100. The moving cross bar 213 connects the movable supports 212, and is connected with the moving block 330. The first support rollers 250 are arranged on the moving cross bar 213 and are in contact with the conveying belt 220. The fixed supports 211 and the movable supports 212 are used to support the conveying belt 220. The movable supports 212 change the length of the conveying section of the conveying belt 220 by moving in the x direction.

[0046] The telescopic support 210 is provided with the first support rollers 250 on the upper side and the lower side at the two ends, respectively. The first support rollers 250 on the upper side and the first support rollers 250 on the lower side are arranged in parallel. The first support rollers 250 are arranged on the upper side and the lower side to adapt to the telescopic support 210 with a certain thickness, so as to ensure smooth movement of the conveying belt 220.

[0047] In an embodiment, the tensioning assembly 240 comprises a moving roller 241, a first linear guide rail 242, a connecting plate 243, and a first motor 244. The first motor 244 is arranged on the rack 100, the output end of the first motor 244 is connected to the connecting plate 243, the connecting plate 243 is provided with the moving roller 241, the moving roller 241 is wound around the conveying belt 220 in the buffer area, the connecting plate 243 is in sliding connection with the first linear guide rail 242, and the first linear guide rail 242 is arranged in parallel with the x direction. The first motor 244 drives the moving roller 241 to move along the first linear guide rail 242. When the conveying belt 220 in the conveying area becomes shorter, the conveying belt 220 in the buffer area becomes longer, and the length of the conveying belt 220 in the buffer area changes by an equal amount according to the length of the conveying belt 220 in the conveying area. At this time, the first motor 244 drives the moving roller 241 to move and pull the conveying belt 220, so that the conveying belt 220 is kept in a tensioned state.

[0048] Further, the first and last ends of the moving roller 241 are respectively provided with the first linear guide rail 242, the connecting plate 243, and the first motor 244. The first linear guide rail 242 is symmetrically arranged on both sides of the conveying belt 220. The first and last ends of the moving roller 241 are respectively in sliding connection with the guide rail 242 through the connecting plate 243. The two first motors 244 respectively control the movement of the first and last ends of the moving roller 241. The movement of the two ends of the moving roller 241 is controlled by the first motor 244, so that the moving roller 241 can swing, and the deviation of the conveying belt 220 can be corrected.

[0049] In an embodiment, the power assembly 230 comprises a support 231, a second motor 232, a driving roller 233, and a buffer roller 234. The support 231 is arranged on the rack 100, the second motor 232 and the buffer roller 234 are arranged on the support 231, the second motor 232 is in transmission connection with the driving roller 233, and drives the driving roller 233 to rotate. The driving roller 233 and the buffer roller 234 are arranged in parallel, the height of the driving roller 233 is higher than the height of the buffer roller 234, the buffer roller 234 is arranged in parallel with the moving roller 241, the buffer roller 234 is arranged at the same height as the moving roller 241, and the driving roller 233 is located between the buffer roller 234 and the moving roller 241.

[0050] The conveying belt 220 extends from the conveying area below the buffer roller 234 to below the moving roller 241, the conveying belt 220 below the moving roller 241 extends to above the moving roller 241, and then extends to below the driving roller 233, to above the driving roller 233, and then to the conveying area. The conveying belt 220 is wound in an S shape between the moving roller 241 and the buffer roller 234.

[0051] The second motor 232 drives the main roller 233 to rotate, and then drives the winding conveying belt 220 to move between the buffer roller 234, the moving roller 241 and the first supporting roller 250. The first motor 244 drives the moving roller 241 to move along the guide rail 242, and then moves close to or away from the buffer roller 234, so as to change the length of the conveying belt between the moving roller 241 and the buffer roller 234, so as to adapt to the length change of the conveying belt 220 in the conveying section, and keep the conveying belt 220 in tension at all times.

[0052] The buffer section is provided with a supporting roller group 260, which includes two second supporting rollers 261 arranged in parallel between the telescopic support 210 and the power assembly 230. The two second supporting rollers 261 are located at different heights and have a predetermined width distance between them. The upper second supporting roller 261 is fixedly connected to the lower middle part of the telescopic support 210 and moves with the telescopic support 210. The lower second supporting roller 261 is fixedly connected to the rack 100. As shown in the figure, the conveying belt 220 is wound around the second supporting roller 261 in an S shape. The supporting roller group 260 further increases the buffer length of the conveying belt 220 in the buffer section.

[0053] In an embodiment, the conveying belt unit 200 includes a first conveying belt unit 270 and a second conveying belt unit 280. One end of the first conveying belt unit 270 is a movable end, and the other end is a fixed end. Both ends of the second conveying belt unit 280 are movable ends, which can move telescopically through the moving assembly. The number of conveying belt units 200 is three, including two first conveying belt units 270 and one second conveying belt unit 280. The second conveying belt unit 280 is located between the two first conveying belt units 270.

[0054] The first conveying belt unit 270 includes one supporting roller group 260. The second conveying belt unit 280 includes two supporting roller groups 260, which are located at the two ends below the telescopic support 210. One end of the telescopic support 210 of the first conveying belt unit 270 is fixed to the rack 100, and the other end is telescopically movable. Both ends of the telescopic support 210 of the second conveying belt unit 280 are telescopically movable.

[0055] In an embodiment, the laser cutting assembly 400 comprises a laser head 410 and a support beam 420, the support beam 420 is arranged across the two sides of the conveying belt 220 and is parallel to the y direction. The laser head 410 is arranged on the support beam 420, and the support beam 420 supports the laser head 410 above the kerf. The laser head 410 is arranged to move along the support beam 420, and can be moved by a y-axis linear motor, and the moving direction is perpendicular to the conveying direction of the conveying belt unit 200, that is, the laser head 410 moves along the y direction on the support beam 410. In addition, the laser head can also move up and down through a z-axis linear motor.

[0056] Further, a kerf sealing assembly 600 is also included, which is arranged on both sides of the support beam 420 and moves synchronously with the support beam 420 along the x direction. The kerf sealing assembly 600 is used for sealing the two ends of the kerf. When the cutting assembly 400 is working, the kerf has a predetermined width, and the kerf sealing assembly 600 is used for sealing the two sides of the kerf at this time. The kerf sealing assembly 600 is used to seal the two ends of the kerf when the workpiece is cut, to improve the wind speed in the cutting area, to take the dust generated by the laser head cutting to the collection hopper, to avoid dust overflow, and to reduce subsequent cleaning work.

[0057] Specifically, the kerf sealing assembly 600 comprises a sealing strip 610, a servo motor 620, a reducer 630, a second linear guide rail 640, a gear 650, and a rack 660. The servo motor 620 is arranged on the support beam 420, and the output end of the servo motor 620 is connected to the gear 650 through the reducer 630. The rack 660 is engaged with the gear 650, and the rack 660 moves along the second linear guide rail 640, which is arranged parallel to the y direction. The rack 660 is fixedly connected with the sealing strip 610, and the cross-sectional shape of the sealing strip 610 matches the cross-sectional shape of the kerf when the cutting assembly 400 is working. The sealing strip can be a sealing sheet metal.

[0058] Through the above structure, the sealing strip 610 enters or exits from both sides of the kerf. When the cutting work is not performed, the sealing strip 610 exits from both sides of the kerf. When the cutting work is performed, the sealing strip enters from both sides of the kerf, and the entering distance can adapt to the width of the workpiece.

[0059] In an embodiment, the waste recycling assembly 500 comprises a collection hopper 510, a transport trolley 520, and a support seat 530. The collection hopper 510 is arranged on the transport trolley 520, and the opening of the collection hopper 510 faces the kerf. The width of the collection hopper 510 is greater than the moving range of the kerf. The support seat 530 supports the transport trolley 520, and guide strips 540 are arranged on both sides of the support seat 530 to guide the movement of the transport trolley 520. The collection hopper 510 is provided with a dust suction port 511, which is used to connect a dust collector to form a negative pressure in the collection hopper 510 to collect waste.

[0060] In summary, the laser cutting equipment embodiment provided by the utility model, through the conveying belt unit to workpiece is transported, the end of conveying belt unit is movable, through moving the conveying belt end changes the length of the delivery interval and the position or width of the slit, through changing the position and width of the slit facilitates blanking, the cutting assembly is used for workpiece cutting, the cutting assembly is located in the slit, the moving interval of x direction is the width of the slit, the waste recovery assembly is used for blanking collection of the slit.

[0061] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them; under the idea of the utility model, the technical features among the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the utility model as described above, for the sake of simplicity, they are not provided in details; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A laser cutting apparatus, characterized by, The machine frame, a cutting assembly, a waste recycling assembly and at least three conveying belt units are provided; The conveying belt units are arranged in sequence, and the space between adjacent conveying belt units is a cutting gap. The end of the conveying belt unit moves along the x direction through a moving assembly, and the width or position of the cutting gap is changed by the movement of the end of the conveying belt unit. The cutting assembly is arranged above the cutting gap, and moves along the x direction in the cutting gap through the moving assembly. The waste recycling assembly is arranged below the cutting gap, and the collection area of the waste recycling assembly covers the movement interval of the cutting gap. The waste recycling assembly is used for recycling waste.

2. The laser cutting apparatus of claim 1, wherein, The conveying belt unit comprises a telescopic support, a conveying belt, a power assembly, a tensioning assembly and a first supporting roller. The telescopic support is arranged on the machine frame, and the first supporting roller is arranged at the two ends of the telescopic support. The telescopic support drives the two first supporting rollers to move closer to or away from each other, or drives one first supporting roller to move closer to or away from the other first supporting roller. The conveying belt surrounds the first supporting rollers at the two ends of the telescopic support, and the power assembly drives the conveying belt to move along the first supporting rollers. The tensioning assembly is arranged on the machine frame, and acts on the conveying belt to keep the conveying belt in a tensioned state when conveying workpieces. The tensioning assembly is used for correcting the deviation of the conveying belt.

3. The laser cutting apparatus of claim 2, wherein, The moving assembly comprises a linear motor, a guide rail and a moving block. The guide rail is arranged on both sides of the machine frame and is parallel to the x direction. The moving block is slidably connected to the guide rail through a sliding block, and the linear motor is drivingly connected to the moving block. The linear motor drives the moving block to move along the guide rail, and the moving block is connected to the end of the conveying belt unit.

4. The laser cutting apparatus of claim 3, wherein, The upper side of the telescopic support is a conveying interval of the conveying belt, the lower side of the telescopic support is a buffer interval of the conveying belt, and the conveying belt surrounds the conveying interval and the buffer interval. The tensioning assembly and the power assembly are located below the telescopic support, and act on the conveying belt in the buffer interval. The end of the telescopic support is connected to the moving block, and the telescopic support is driven to extend or retract through the moving block moving along the guide rail.

5. The laser cutting apparatus of claim 4, wherein, The tensioning assembly comprises a moving roller, a first linear guide rail, a connecting plate and a first motor. The first motor is arranged on the machine frame, the output end of the first motor is connected to the connecting plate, the connecting plate is provided with the moving roller, the moving roller is wound around the conveying belt in the buffer interval, and the connecting plate is slidably connected to the first linear guide rail. The first linear guide rail is parallel to the x direction, and the first motor drives the conveying belt wound around the moving roller to move along the x direction.

6. The laser cutting apparatus of claim 1, wherein, The conveying belt unit comprises a first conveying belt unit and a second conveying belt unit, one end of the first conveying belt unit is a movable end, the other end is a fixed end, both ends of the second conveying belt unit are movable ends, and the movable ends can move telescopically through the moving assembly; the second conveying belt unit is located between the first conveying belt units, and the movable ends of the first conveying belt units are arranged adjacent to the movable ends of the second conveying belt unit.

7. The laser cutting apparatus of claim 1, wherein, The cutting assembly comprises a laser head and a support beam, the support beam spans both sides of the conveying belt, the support beam is arranged in parallel with the y direction, the laser head is arranged on the support beam, the support beam supports the laser head above the cutting slot, and the laser head moves along the y direction on the support beam.

8. The laser cutting apparatus of claim 7, wherein, The cutting slot sealing assembly is arranged on both sides of the support beam, and is used for sealing both ends of the cutting slot when the cutting assembly is working; the cutting slot has a predetermined width when the cutting assembly is working, and the cutting slot sealing assembly is used for sealing both sides of the cutting slot at this time.

9. The laser cutting apparatus of claim 8, wherein, The cutting slot sealing assembly comprises a sealing strip, a servo motor, a speed reducer, a second linear guide rail, a gear and a rack, the servo motor is arranged on the support beam, the output end of the servo motor is connected to the gear through the speed reducer, the rack is engaged with the gear, the rack moves along the second linear guide rail, the second linear guide rail is arranged in parallel with the y direction, the rack is fixedly connected with the sealing strip, and the cross-sectional shape of the sealing strip matches the cross-sectional shape of the cutting slot when the cutting assembly is working.

10. The laser cutting apparatus of claim 1, wherein, The waste recycling assembly comprises a collecting hopper, a transport trolley and a support seat, the collecting hopper is arranged on the transport trolley, the opening of the collecting hopper faces the cutting slot, the width of the collecting hopper is greater than the moving range of the cutting slot, the support seat supports the transport trolley, guide strips are arranged on both sides of the support seat for guiding the movement of the transport trolley, the collecting hopper is provided with a dust suction port, and the dust suction port is used for connecting a dust collector.

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