Automatic feeding laser cutting machine

Abstract

The utility model relates to an automatic feeding laser cutting machine. The automatic feeding laser cutting machine comprises a rack, a decoiling part and a cutting part. The cutting part comprises a laser unit and a conveying unit; the conveying unit comprises a conveying chain, a driving shaft, a driven shaft, a driving chain wheel, a driven chain wheel and a plurality of supporting rack sets. The supporting rack set comprises a rack plate, a supporting block and a mounting block. The supporting block is arranged between the two rack plates and is connected with the rack plates; a slag discharging gap is formed between every two adjacent supporting blocks; one end of the mounting block is connected with the conveying chain, and the other end is connected with the ends of the two rack plates. The two rack plates are connected into a whole through the supporting block, and the supporting strength of the supporting rack set is improved; the two rack plates are separated by the supporting block, so that a cavity is formed between the two rack plates; metal residues generated by laser cutting mainly flow out of the residue discharging gap; and the metal residues can smoothly fall into a metal residue designated area, and collection and treatment of the metal residues are facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of laser cutting, and in particular to an automatic feeding laser cutting machine. Background Technology

[0002] In the field of laser cutting, conveyor chain or conveyor belt laser cutting platforms have already appeared on the market. For example, the utility model patent with authorization announcement number CN202137509U discloses a conveyor chain or conveyor belt. Several supporting racks are fixed at equal intervals on the outer surface of the conveyor chain or conveyor belt, and horizontal support plates are set on two crossbeams to support the conveyor chain or conveyor belt. Based on this, existing technology has also developed uncoiling and blanking production equipment that integrates an uncoiler, a leveler, a servo feeder, a laser cutting platform, a palletizing system, and a waste disposal system. For example, the utility model patent with authorization announcement number CN203418240U uses a laser cutting technology uncoiling and blanking production equipment, which also uses a similar conveyor chain or conveyor belt; however, the bottom end of the supporting rack is closed; the metal residue generated by laser cutting will fall to the bottom end of the supporting rack and cannot fall smoothly into the designated metal residue area below the frame, which is not conducive to the collection and treatment of metal residue. Utility Model Content

[0003] The purpose of this invention is to solve the above problems and provide an automatic feeding laser cutting machine.

[0004] The technical solution of this utility model is as follows: An automatic feeding laser cutting machine includes a frame, a leveling section and a cutting section connected end to end, which are respectively responsible for leveling the steel coil and cutting the leveled steel plate; the leveling section and the cutting section are both installed on the frame and integrated together, so that the leveling of the steel coil and the cutting of the leveled steel plate form an assembly line effect, reducing the hoisting and circulation process of the steel plate and improving the overall cutting efficiency; the cutting section includes a laser unit installed on the frame and a conveying unit installed inside the frame; the laser unit is responsible for cutting the steel plate; the laser... The optical unit is a mature technology in the prior art, such as the laser cutting device in the utility model patent with authorization announcement number CN202137509U; therefore, it will not be elaborated on here. The conveying unit conveys the steel plate; the conveying unit includes two symmetrically arranged conveying chains, a drive shaft, a driven shaft, and drive sprockets and driven sprockets respectively cooperating with the two ends of the conveying chains; the drive shaft and the drive sprocket are coaxially fixed; the driven shaft and the driven sprocket are coaxially fixed; the drive shaft and the driven shaft are rotatably connected to the frame; the frame supports the drive shaft and the driven shaft, and... The drive and driven sprockets are supported, causing the conveyor chain to be erected in a ring. The conveying unit also includes several support rack assemblies mounted on the conveyor chain. Due to the symmetrical arrangement of the conveyor chain, the rotation of the drive shaft allows the support rack assemblies to rotate in a ring. The support rack assembly located at the top of the conveyor chain rotates horizontally. This support rack assembly includes two symmetrically arranged transversely facing rack plates, several support blocks, and mounting blocks symmetrically arranged at both ends of the rack plates. The rack plates provide stable support to the steel plates through their teeth. The horizontally rotating support rack assembly provides stable support to the steel plates. The plate is supported by multiple stable steel plates; the support block is set between two rack plates and connected to them; the support block connects the two rack plates into one, improving the support strength of the rack assembly; the support block also separates the two rack plates, forming a cavity between them; within this cavity, there is a slag discharge gap between adjacent support blocks; the metal residue generated by laser cutting mainly flows out from the slag discharge gap; one end of the mounting block is connected to the conveyor chain, and the other end is connected to the ends of the two rack plates, allowing the rack assembly to move with the conveyor chain.

[0005] Preferably, the support block has a vertical cavity, which can also allow metal residue to fall to a certain extent.

[0006] Preferably, the cutting section further includes a residue collection unit located directly below the conveying unit; the residue collection unit includes several collection hoppers evenly distributed along the length of the conveying unit, a residue box located directly below the output end of the collection hopper, and a negative pressure pipe running longitudinally through all the collection hoppers; suction holes are evenly distributed on both sides of the section of the negative pressure pipe entering the collection hopper; one end of the negative pressure pipe is closed, and the other end is connected to an external negative pressure air source; the falling metal residue falls into the residue box along the collection hopper, and is then centrally managed through the residue box; the negative pressure pipe can collect harmful gases generated along with the metal residue through the suction holes to protect the health of the operators.

[0007] Preferably, the conveying unit further includes a drive motor, a drive sprocket, a transmission sprocket, and a drive chain; the drive motor is mounted on the frame; the output shaft of the drive motor is coaxially fixed to the drive sprocket; one end of the drive shaft is coaxially fixed to the transmission sprocket; the drive sprocket and the transmission sprocket are connected through the drive chain; the drive motor outputs torque, which acts on the transmission sprocket through the drive sprocket and the chain, causing the drive shaft to rotate and providing power to the conveying unit.

[0008] Preferably, the portion of the rack plate corresponding to the support block is provided with horizontally outwardly bent reinforcing ribs to enhance the support strength of the rack plate.

[0009] Preferably, the mounting block includes a 7-shaped hook plate and an ear plate; the upper end of the hook plate is connected to the conveyor chain; one end of the ear plate is connected to the lower end of the hook plate, and the other end is connected to the lower end of the rack plate; a connecting plate extends inward from the upper edge of the chain plate on the inner side of the conveyor chain; the upper end of the hook plate is connected to the connecting plate; the hook plate causes the rack plate to be embedded between the two conveyor chains, with only the teeth exposed, making the support of the rack assembly for the plate more stable.

[0010] Preferably, the conveying unit further includes an upper support rail and a lower support rail; the upper support rail is located directly below the upper part of the conveyor chain and is fixedly connected to the frame; the lower support rail is located directly below the lower part of the conveyor chain and is fixedly connected to the frame; the upper and lower support rails are connected to the conveyor chain; the upper support rail supports the upper part of the conveyor chain to ensure the flatness of the support plate of the support rack assembly of the upper part of the conveyor chain; the lower support rail supports the lower part of the conveyor chain to prevent the conveyor chain from detaching.

[0011] Preferably, the leveling section includes a conveyor roller track and a set of extrusion rollers spanning the middle of the conveyor roller track. The conveyor roller track includes several conveyor rollers and sidewalls symmetrically arranged on both sides of the conveyor rollers. The sidewalls are provided with vertical lifting grooves, lifting plates that slide vertically with the lifting grooves, buckles, and worm gear screw jacks. Buckles are installed directly above the lifting grooves to close them. The extrusion roller set includes several extrusion rollers. The ends of the extrusion rollers are connected to the lifting blocks. The lifting of the lifting blocks and the lifting of the extrusion rollers are synchronized. The worm gear screw jack is installed above the buckles, and its output end is connected to the top of the lifting blocks. A handwheel is installed on the outward-facing input end of the worm gear screw jack. The worm gear screw jack is operated by the handwheel to raise and lower the lifting blocks and extrusion rollers. The extrusion rollers are staggered with the conveyor rollers. When the extrusion rollers press down, they can squeeze the sheet material, squeezing it to a position below the upper surface of the conveyor rollers, completely eliminating the internal stress of the sheet material, thereby achieving the leveling effect.

[0012] Furthermore, the side wall also has a vertical groove in front of the lifting groove; a vertical slider slides vertically in the vertical groove; a transfer roller is provided below the vertical groove; the leveling section also includes a lower pressure roller; the end of the lower pressure roller is rotatably connected to the vertical slider; the lower pressure roller squeezes the steel on the transfer roller below it due to its own weight, ensuring that the plate moves stably in the leveling section.

[0013] Furthermore, the leveling section also includes a centering assembly; this centering assembly is located at the front and rear ends of the extrusion roller group on the conveyor roller table; the centering assembly includes a double-threaded screw, a transverse guide rod, a locking plate, a guide block, a lead screw nut, and a handwheel B; the two ends of the double-threaded screw are respectively provided with a positive thread section and a negative thread section; the positive thread section and the negative thread section are respectively threaded with corresponding lead screw nuts; the guide block is slidably engaged with the transverse guide rod; the guide block and the lead screw nut are connected to the bottom of the locking plate; the handwheel B is coaxially mounted on the end of the double-threaded screw; the top of the locking plate is provided with a connected stop block and a pressure plate; the stop block is connected to the locking plate; the pressure plate and the stop block are connected and extend inward; operating the handwheel B can make the locking plates move closer or further apart to adapt to the width of the steel coil; at the same time, the two centering assemblies are also centered on the leveled steel plate to facilitate precise cutting of the cutting section.

[0014] Furthermore, the inwardly extending portion of the pressure plate is provided with an observation hole to observe whether the stop block abuts the edge of the steel plate.

[0015] The beneficial effects of this utility model are as follows: The automatic feeding laser cutting machine of this utility model has the following advantages:

[0016] (1) The support block of this utility model connects the two rack plates into one piece, which improves the support strength of the rack plate assembly; the support block also separates the two rack plates, so that a cavity is formed between the two rack plates; the metal residue generated by laser cutting mainly flows out from the slag outlet gap; the metal residue generated by laser cutting can fall smoothly into the designated metal residue area under the frame, which is conducive to the collection and treatment of metal residue.

[0017] (2) The reinforcing ribs of this utility model can enhance the supporting strength of the rack plate;

[0018] (3) The upper support track of this utility model supports the upper part of the conveyor chain to ensure the flatness of the support plate of the support rack group of the upper part of the conveyor chain; the lower support track supports the lower part of the conveyor chain to prevent the conveyor chain from falling off. Attached Figure Description

[0019] Figure 1 This is a perspective view of the automatic feeding laser cutting machine of this utility model;

[0020] Figure 2 yes Figure 1 Left partial sectional view;

[0021] Figure 3 yes Figure 2 AA section view;

[0022] Figure 4 yes Figure 3 A magnified view of the I-shaped image;

[0023] Figure 5 yes Figure 3 BB section view;

[0024] Figure 6 yes Figure 5 II magnified view;

[0025] Figure 7 yes Figure 1 A partial sectional view on the right side;

[0026] Figure 8 yes Figure 7 III magnified view;

[0027] Figure 9 It is a three-dimensional diagram of the rack and pinion system;

[0028] Figure 10 It is a three-dimensional component. Figure 1 ;

[0029] Figure 11 It is a three-dimensional component. Figure 2 ;

[0030] In the diagram: 1. Frame, 21. Flow roller conveyor, 211. Flow roller, 212. Side wall, 2121. Lifting groove, 2122. Lifting plate, 2123. Buckle plate, 2124. Worm gear screw jack, 2125. Handwheel A, 2126. Vertical groove, 2127. Vertical slider, 22. Extrusion roller, 23. Lower pressure roller, 24. Leveling motor, 25. Leveling chain, 26. Leveling sprocket A, 27. Leveling sprocket B, 28. Synchronous gear, 29. Centering assembly, 291. Double screw, 292. Transverse guide rod, 293. Positioning plate, 2931. Stop block, 2932. Pressure plate, 29321. Observation elongated hole, 294. Guide block, 295. Screw nut, 296. Handwheel B, 31. Excitation 32. Light unit, 321. Conveying unit, 321. Conveying chain, 3211. Connecting plate, 322. Drive shaft, 323. Passive shaft, 324. Drive sprocket, 325. Passive sprocket, 326. Support rack assembly, 3261. Rack plate, 32611. Reinforcing rib, 3262. Support block, 32621. Vertical cavity, 3263. Mounting block, 32631. Hook plate, 32632. Ear plate, 3264. Slag discharge gap, 3271. Drive motor, 3272. Drive sprocket, 3273. Transmission sprocket, 3274. Drive chain, 3281. Upper support rail, 3282. Lower support rail, 331. Collection hopper, 332. Residue box, 333. Negative pressure pipe, 3331. Suction hole. Detailed Implementation

[0031] Example 1: See Figure 1-11An automatic feeding laser cutting machine includes a frame 1, a leveling section and a cutting section connected end to end, which are responsible for leveling steel coils and cutting the leveled steel plates, respectively. The leveling section and the cutting section are both installed on the frame 1 and integrated together, creating a streamlined process for leveling the steel coils and cutting the leveled steel plates, reducing the lifting and handling of the steel plates and improving overall cutting efficiency. The cutting section includes a laser unit 31 installed on the frame 1 and a conveying unit 32 installed inside the frame 1. The laser unit 31 is responsible for cutting the steel plates. The laser unit 31 is a mature technology in the prior art, such as the laser cutting device in the utility model patent with authorization announcement number CN202137509U. Therefore, this... The details are omitted here; the conveying unit 32 conveys the steel plate; the conveying unit 32 includes two symmetrically arranged conveying chains 321, a drive shaft 322, a driven shaft 323, and drive sprockets 324 and driven sprockets 325 respectively cooperating with both ends of the conveying chains 321; the drive shaft 322 is coaxially and fixedly connected to the drive sprocket 324; the driven shaft 323 is coaxially and fixedly connected to the driven sprocket 325; the drive shaft 322 and driven shaft 323 are rotatably connected to the frame 1; the frame 1 supports the drive shaft 322 and driven shaft 323, and in turn supports the drive sprockets 324 and driven sprockets 325, so that the conveying chain 321 is erected in a ring; the conveying unit 32 also includes several supports installed on the conveying chain 321. Rack assembly 326; due to the symmetrical arrangement of the conveyor chain 321, the rotation of the drive shaft 322 enables the supporting rack assembly 326 to rotate in a ring; the supporting rack assembly 326 located above the conveyor chain 321 rotates horizontally; the supporting rack assembly 326 includes two symmetrically arranged transversely toothed rack plates 3261, several support blocks 3262, and mounting blocks 3263 symmetrically arranged at both ends of the rack plates 3261; in this embodiment, each supporting rack assembly 326 includes 5 support blocks 3262; the 5 support blocks 3262 are evenly distributed along the length direction of the rack plates 3261; the rack plates 3261 provide stable support for the steel plates through their teeth; the horizontally rotating supporting rack assembly 326 provides stable support for the flat plate steel plates. The system features multi-point support; the support block 3262 is positioned between two rack plates 3261 and connects with them; the support block 3262 connects the two rack plates 3261 into one unit, improving the support strength of the rack assembly 326; the support block 3262 also separates the two rack plates 3261, forming a cavity between them; within this cavity, a slag discharge gap 3264 is provided between adjacent support blocks 3262; the metal residue generated by laser cutting mainly flows out from the slag discharge gap 3264; one end of the mounting block 3263 connects to the conveyor chain 321, and the other end connects to the ends of the two rack plates 3261, allowing the rack assembly 326 to rotate with the conveyor chain 321.

[0032] Compared with the prior art, the support block 3262 of this utility model connects the two rack plates 3261 into one, improving the support strength of the rack assembly 326; the support block 3262 also separates the two rack plates 3261, so that a cavity is formed between the two rack plates 3261; the metal residue generated by laser cutting mainly flows out from the slag discharge gap 3264; the metal residue generated by laser cutting can fall smoothly into the designated metal residue area below the frame 1, which is beneficial to the collection and treatment of metal residue.

[0033] The support block 3262 is provided with a vertical cavity 32621, which can also allow metal residue to fall to a certain extent.

[0034] The cutting section also includes a residue collection unit located directly below the conveying unit 32. This residue collection unit comprises several collection hoppers 331 evenly distributed along the length of the conveying unit 32, a residue box 332 located directly below the output end of each collection hopper 331, and a negative pressure pipe 333 running longitudinally through all the collection hoppers 331. In this embodiment, there are two collection hoppers 331. Suction holes 3331 are evenly distributed on both sides of the section of the negative pressure pipe 333 entering the collection hopper 331. One end of the negative pressure pipe 333 is closed, and the other end is connected to an external negative pressure air source. The falling metal residue falls along the collection hopper 331 into the residue box 332, where it is then centrally managed. The negative pressure pipe 333 can collect harmful gases generated along with the metal residue through the suction holes 3331 to protect the health of the operators.

[0035] The conveying unit 32 also includes a drive motor 3271, a drive sprocket 3272, a transmission sprocket 3273, and a drive chain 3274. The drive motor 3271 is mounted on the frame 1. The output shaft of the drive motor 3271 is coaxially fixed to the drive sprocket 3272. One end of the drive shaft 322 is coaxially fixed to the transmission sprocket 3273. The drive sprocket 3272 and the transmission sprocket 3273 are connected through the drive chain 3274. The drive motor 3271 outputs torque, which acts on the transmission sprocket 3273 through the drive sprocket 3272 and the chain, causing the drive shaft 322 to rotate and providing power to the conveying unit 32.

[0036] The portion of the rack plate 3261 corresponding to the support block 3262 is provided with horizontally outwardly bent reinforcing ribs 32611 to enhance the support strength of the rack plate 3261.

[0037] Mounting block 3263 includes a 7-shaped hook plate 32631 and an ear plate 32632; the upper end of hook plate 32631 is connected to conveyor chain 321; one end of ear plate 32632 is connected to the lower end of hook plate 32631, and the other end is connected to the lower end of rack plate 3261; a connecting plate 3211 extends inward from the upper edge of the chain plate on the inner side of conveyor chain 321; the upper end of hook plate 32631 is connected to the connecting plate 3211; hook plate 32631 causes rack plate 3261 to be embedded between two conveyor chains 321, with only the teeth exposed, making the support of rack assembly 326 for plate more stable.

[0038] The conveying unit 32 also includes an upper support rail 3281 and a lower support rail 3282; the upper support rail 3281 is located directly below the upper part of the conveying chain 321 and is fixedly connected to the frame 1; the lower support rail 3282 is located directly below the lower part of the conveying chain and is fixedly connected to the frame 1; the upper support rail 3281 and the lower support rail 3282 are connected to the conveying chain 321; the upper support rail 3281 supports the upper part of the conveying chain 321 to ensure the flatness of the support plate of the support rack assembly 326 of the upper part of the conveying chain 321; the lower support rail 3282 supports the lower part of the conveying chain 321 to prevent the conveying chain 321 from detaching.

[0039] The leveling section includes a conveyor roller track 21 and a group of extrusion rollers 22 spanning the middle of the conveyor roller track 21. The conveyor roller track 21 includes several conveyor rollers 211 and side walls 212 symmetrically arranged on both sides of the conveyor rollers 211. The side wall 212 is provided with a vertical lifting groove 2121, a lifting plate 2122 that slides vertically with the lifting groove 2121, a buckle plate 2123, and a worm gear screw jack 2124. The buckle plate 2123 is installed directly above the lifting groove 2121 to close it. The group of extrusion rollers 22 includes several extrusion rollers 22. The ends of the extrusion rollers 22 are connected to the lifting blocks. The lifting of the block and the lifting of the extrusion roller 22 are synchronized; the worm gear screw jack 2124 is installed above the buckle plate 2123, and its output end is connected to the top of the lifting block; a handwheel A 2125 is installed on the outward input end of the worm gear screw jack 2124; the worm gear screw jack 2124 is operated by the handwheel A 2125 to make the lifting block and the extrusion roller 22 rise and fall; the extrusion roller 22 is offset from the flow roller 211; when the extrusion roller 22 presses down, it can squeeze the plate, so that the plate is squeezed to a position lower than the upper surface of the flow roller 211, completely eliminating the internal stress of the plate, so as to achieve the plate leveling effect.

[0040] The side wall 212 also has a vertical groove 2126 in front of the lifting groove 2121; a vertical slider 2127 slides vertically in the vertical groove; a flow roller 211 is provided below the vertical groove 2126; the leveling part also includes a lower pressure roller 23; the end of the lower pressure roller 23 is rotatably connected to the vertical slider 2127; the lower pressure roller 23 squeezes the steel on the flow roller 211 below it due to its own weight, so as to ensure that the plate moves stably in the leveling part.

[0041] In this embodiment, the buckle plate 2123 is connected to the side wall 212 by screws, and at the same time, it closes the lifting groove 2121 and the vertical groove 2126.

[0042] The leveling section also includes a leveling motor 24, a leveling chain 25, a leveling sprocket A 26, and a leveling sprocket B 27; a flow roller 211 below the extrusion roller 22 and a flow roller 211 below the lower pressure roller 23 are driving rollers, both of which are coaxially fixed to the end with a leveling sprocket A 26; the output shaft of the leveling motor 24 is coaxially fixed to the leveling sprocket B 27; the leveling sprocket A 26 and the leveling sprocket B 27 are connected through the leveling chain 25; the leveling motor 24 outputs torque, which acts on the leveling sprocket A 26 through the leveling sprocket B 27 and the leveling chain 25, causing the two flow rollers to rotate synchronously, thereby increasing the flow power of the steel plate in the leveling section; at the same time, the power to drive the steel plate to flow is provided at both the front and rear ends of the leveling section, so that the steel plate can flow stably in the leveling section.

[0043] Both the lower pressure roller 23 and the flow roller 211 below it are equipped with synchronous gears 28 of the same size at their ends, so that the lower pressure roller 23 and the flow roller 211 below it rotate at the same speed, ensuring the driving effect on the steel plate.

[0044] The leveling section also includes a centering assembly 29; this centering assembly 29 is disposed at the front and rear ends of the extrusion rollers 22 on the conveyor roller table 21; the centering assembly 29 includes a double-screw 291, a transverse guide rod 292, a locking plate 293, a guide block 294, a screw nut 295, and a handwheel 296; the double-screw 291 has a positive thread section and a negative thread section at both ends; the positive thread section and the negative thread section are respectively threaded with corresponding screw nuts 295; the guide block 294 is slidably engaged with the transverse guide rod 292; the guide block 294... The lead screw nut 295 is connected to the bottom of the positioning plate 293; a handwheel 296 is coaxially mounted at the end of the double lead screw 291; the top of the positioning plate 293 is provided with a connected stop block 2931 and a pressure plate 2932; the stop block 2931 is connected to the positioning plate 293; the pressure plate 2932 is connected to the stop block 2931 and extends inward; the operation of the handwheel 296 can make the positioning plates 293 move closer or further apart to adapt to the width of the steel coil; at the same time, the two centering components 29 are also flattened steel plates centered to facilitate precise cutting of the cutting part.

[0045] The working principle of this embodiment is as follows: The leveling and cutting parts are integrated and installed on the frame 1, so that the leveling of the steel coil and the cutting of the steel plate after leveling form an assembly line effect, reducing the hoisting and transfer process of the steel plate and improving the overall cutting efficiency; the laser unit 31 is responsible for cutting the steel plate; the conveying unit 32 conveys the steel plate; the rack plate 3261 provides stable support for the steel plate through its teeth; the horizontally rotating support rack group 326 provides stable multi-point support for the flat plate steel plate; the support block 3262 holds the two rack plates 3261 together. The 61 components are integrated to improve the support strength of the rack assembly 326; the support block 3262 also separates the two rack plates 3261, creating a cavity between them; the metal residue generated by laser cutting mainly flows out from the slag discharge gap 3264; the reinforcing rib 32611 strengthens the support strength of the rack plates 3261; the hook plate 32631 embeds the rack plates 3261 between the two conveyor chains 321, exposing only the teeth, making the support rack assembly 326 more stable in supporting the plate. The upper support rail 3281 lifts the upper part of the conveyor chain 321 to ensure the flatness of the plate supported by the rack assembly 326 on the upper part of the conveyor chain 321; the lower support rail 3282 lifts the lower part of the conveyor chain 321 to prevent the conveyor chain 321 from detaching. When the extrusion roller 22 presses down, it can compress the sheet metal, pressing it to a position below the upper surface of the transfer roller 211, completely eliminating the internal stress of the sheet metal to achieve a leveling effect. Power is provided at both the front and rear ends of the leveling section to drive the steel sheet to rotate stably within the leveling section; the operating handwheel 296 allows the positioning plates 293 to move closer or further apart to accommodate the width of the steel coil; simultaneously, the two centering components 29 center the leveled steel sheet to facilitate precise cutting in the cutting section.

[0046] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that the pressure plate 2932 has an observation hole 29321 in the inward extension part to observe whether the stop block 2931 abuts the edge of the steel plate.

Claims

1. An automatic feeding laser cutting machine, comprising a frame, a leveling section and a cutting section connected end-to-end; both the leveling section and the cutting section are mounted on the frame; the cutting section includes a laser unit mounted on the frame and a conveying unit mounted inside the frame; the conveying unit includes two symmetrically arranged conveying chains, a drive shaft, a driven shaft, and drive sprockets and driven sprockets respectively cooperating with both ends of the conveying chains; the drive shaft and the drive sprocket are coaxially fixedly connected; the driven shaft and the driven sprocket are coaxially fixedly connected; the drive shaft and the driven shaft are rotatably connected to the frame; characterized in that, The conveying unit also includes several support rack assemblies installed on the conveying chain; the support rack assembly includes two symmetrically arranged transverse rack plates with outward-facing teeth, several support blocks, and mounting blocks symmetrically arranged at both ends of the rack plates; the support blocks are located between the two rack plates and are connected to the rack plates; there is a slag discharge gap between adjacent support blocks; one end of the mounting block is connected to the conveying chain, and the other end is connected to the ends of the two rack plates.

2. The automatic feeding laser cutting machine according to claim 1, characterized in that: The support block has a vertical cavity.

3. The automatic feeding laser cutting machine according to claim 1, characterized in that: The cutting section also includes a residue collection unit located directly below the conveying unit; the residue collection unit includes several collection hoppers evenly distributed along the length of the conveying unit, a residue box located directly below the output end of the collection hopper, and a negative pressure pipe running longitudinally through all the collection hoppers; the pipe section of the negative pressure pipe entering the collection hopper has suction holes evenly distributed on both sides; one end of the negative pressure pipe is closed, and the other end is connected to an external negative pressure air source.

4. The automatic feeding laser cutting machine according to claim 1, characterized in that: The conveying unit also includes a drive motor, a drive sprocket, a transmission sprocket, and a drive chain; the drive motor is mounted on the frame; the output shaft of the drive motor is coaxially fixed to the drive sprocket; one end of the drive shaft is coaxially fixed to the transmission sprocket; the drive sprocket and the transmission sprocket are connected by the drive chain.

5. The automatic feeding laser cutting machine according to claim 1, characterized in that: The portion of the rack plate corresponding to the support block is provided with horizontally outward-bent reinforcing ribs.

6. The automatic feeding laser cutting machine according to claim 1, characterized in that: The mounting block includes a 7-shaped hook plate and an ear plate; the upper end of the hook plate is connected to the conveyor chain; one end of the ear plate is connected to the lower end of the hook plate, and the other end is connected to the lower end of the rack plate; a connecting plate extends inward from the upper edge of the chain plate on the inner side of the conveyor chain; the upper end of the hook plate is connected to the connecting plate.

7. The automatic feeding laser cutting machine according to claim 1, characterized in that: The conveying unit also includes an upper support rail and a lower support rail; the upper support rail is located directly below the upper part of the conveyor chain and is fixedly connected to the frame; the lower support rail is located directly below the lower part of the conveyor chain and is fixedly connected to the frame; the upper support rail and the lower support rail are connected to the conveyor chain.

8. The automatic feeding laser cutting machine according to claim 1, characterized in that: The leveling section includes a flow roller conveyor and a set of extrusion rollers spanning the middle of the flow roller conveyor. The flow roller conveyor includes several flow rollers and side walls symmetrically arranged on both sides of the flow rollers. The side walls are provided with vertical lifting grooves, lifting plates that slide vertically with the lifting grooves, buckles, and worm gear screw jacks. The buckles are installed directly above the lifting grooves. The extrusion roller set includes several extrusion rollers. The ends of the extrusion rollers are connected to the lifting blocks. The worm gear screw jacks are installed above the buckles, and their output ends are connected to the top of the lifting blocks. A handwheel is installed on the outward-facing input end of the worm gear screw jacks. The extrusion rollers and flow rollers are staggered.

9. The automatic feeding laser cutting machine according to claim 8, characterized in that: The leveling section also includes a centering assembly; this centering assembly is located at the front and rear ends of the extrusion roller group on the conveyor roller table; the centering assembly includes a double-screw, a transverse guide rod, a positioning plate, a guide block, a lead screw nut, and a handwheel B; the two ends of the double-screw are respectively provided with a positive thread section and a negative thread section; the positive thread section and the negative thread section are respectively threaded with corresponding lead screw nuts; the guide block is slidably engaged with the transverse guide rod; the guide block and the lead screw nut are connected to the bottom of the positioning plate; the handwheel B is coaxially mounted on the end of the double-screw; the top of the positioning plate is provided with a connected stop block and a pressure plate; the stop block is connected to the positioning plate; the pressure plate is connected to the stop block and extends inward.

10. The automatic feeding laser cutting machine according to claim 9, characterized in that: The inward extension of the pressure plate is provided with an observation hole.

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