A laser blanking device for web plate processing

Abstract

The application relates to the technical field of laser blanking of joint plates, and discloses a laser blanking equipment for joint plate processing, which comprises a base, a knife strip arranged in the middle of the base, a metal plate placed on the knife strip, guide rails arranged on the two sides of the base, a portal frame slidingly connected with the guide rails and moving along the length direction of the guide rails, a cutting head slidingly arranged on the side surface of the portal frame and used for cutting a joint plate on the metal plate, a floating pulling mechanism and a material taking mechanism. The material taking mechanism comprises two transverse seats slidingly connected with the guide rails, a material taking belt arranged between the two transverse seats, a magnetic block arranged on the outer side surface of the material taking belt and used for adsorbing the joint plate, and a pulling rod arranged between the transverse seats and the portal frame. The cutting and material taking are realized by the floating pulling mechanism, the processing efficiency is obviously improved, and the pure mechanical linkage structure is simple and reliable.

Description

Technical Field

[0001] This invention relates to the field of laser blanking technology for connecting plates, specifically a laser blanking device for processing connecting plates. Background Technology

[0002] Connecting plates are core connecting components in power transmission lines and substation hardware strings. They are typically made of carbon structural steel or low-alloy high-strength structural steel plates through stamping or cutting. Common structural types include straight, cross, L-shaped, U-shaped, and irregularly shaped connecting plates. These components are mainly used to connect insulator strings, conductor clamps, and tower crossarm hardware, bearing the line tension load and providing electrical connections. Since they are exposed to outdoor atmospheric environments for extended periods, their surfaces must undergo hot-dip galvanizing or anti-corrosion coating treatment. In current technology, mass production of connecting plate parts often employs laser cutting processes. This involves using CNC laser cutting equipment to cut large-format metal plates according to a preset pattern, completing the contour processing of dozens or even hundreds of connecting plates in a single setup. After laser cutting, the resulting connecting plate workpieces and the remaining sheet material are usually only connected by micro-connections or completely separated. The workpieces must be removed from the original sheet frame by manual tapping, ejection, or suction cup pickup before being transferred to subsequent processes.

[0003] Currently, to improve the utilization rate of single-sheet materials and cutting efficiency, the industry generally uses large-size metal sheets as blanking mother plates, so that the distribution range of finished connected plates on the sheet covers the entire sheet width. In conventional automated material handling solutions, multi-axis articulated robots are usually configured to perform workpiece gripping and transfer tasks. However, since the workpieces are distributed over the entire area of ​​the large-format sheet, the end effector of the robot needs to cover a planar motion range equivalent to the size of the sheet, resulting in a significant increase in the extension of the robot arm. Consequently, the requirements for mechanical structural rigidity, transmission accuracy, and drive power are also increased, leading to a substantial increase in the overall manufacturing cost and floor space of the equipment. Therefore, there is an urgent need for a laser blanking equipment for connected plate processing that can balance the efficiency of large-format laser blanking with reducing the motion span requirements of the material handling mechanism and the overall manufacturing cost. Summary of the Invention

[0004] This invention provides a laser blanking device for processing connecting plates, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A laser cutting device for processing connecting plates includes a base, a blade is provided in the middle of the base, a metal plate is placed on the blade, guide rails are provided on both sides of the base, a gantry frame that moves along the length of the guide rails is slidably connected to the guide rails, a cutting head is slidably provided on the side of the gantry frame, the cutting head is used to cut connecting plates on the metal plate, and also includes a floating traction mechanism and a material handling mechanism. The material handling mechanism includes a transverse sliding seat that is slidably connected to the two guide rails, a material handling belt is provided between the two transverse sliding seats, the running direction of the material handling belt is perpendicular to the length direction of the base, and a magnetic suction block for adsorbing the connecting plate is provided on the outer side of the material handling belt. The floating traction mechanism includes a traction rod disposed between the transverse sliding seat and the gantry frame. When the gantry frame moves from a row of connecting plates that has been cut to a row of connecting plates to be cut, the gantry frame pulls the transverse sliding seat to move synchronously through the traction rod. When the gantry frame cuts a row of connecting plates, the transverse sliding seat stops at a position flush with the previous row of connecting plates.

[0006] As a preferred embodiment of the present invention, the floating traction mechanism includes a first protruding block disposed on the side of the transverse shift seat and a second protruding block disposed on the side of the gantry frame. The traction rod passes through the end of the second protruding block and is slidably connected to the first protruding block. A limit plate is provided at the end of the traction rod away from the second protruding block. The limit plate cooperates with the transverse shift seat to limit the movement. A screw section is provided on the side of the traction rod near the second protruding block. Locking nuts that cooperate with the second protruding block are threadedly connected to both sides of the screw section.

[0007] As a preferred embodiment of the present invention, a square frame is provided on the side of the two transverse seats away from the base, and support wheels that cooperate with the material picking belt are provided on the upper and lower sides of the two square frames. An ejection assembly is provided between the two square frames. The ejection assembly is used to drive the material picking belt on the side closer to the base to move toward the base, so that the distance between the magnetic block and the connecting plate is within the adsorption distance range.

[0008] As a preferred embodiment of the present invention, the ejection assembly includes a U-shaped frame disposed in the middle of the square frame, a guide column arranged parallel to the base is disposed between the two U-shaped frames, a transverse plate is slidably connected to the middle of the guide column, an ejection device is disposed in the middle of the transverse plate, the protruding end of the ejection device faces one side of the base, and the protruding end of the ejection device is connected to a mounting frame, and a pressure roller that cooperates with the material taking belt is disposed on the side of the mounting frame near the base.

[0009] As a preferred embodiment of the present invention, the side wall of the square frame is provided with a transverse driving device for driving the transverse plate to move along the guide post. A tensioning device is provided on one side of the square frame away from the center of the base. The tensioning device is used to drive the material picking belt to maintain a tensioned state. A material unloading device is provided on the other side of the square frame away from the center of the base. The material unloading device is used to separate the connecting plate and the magnetic block.

[0010] As a preferred embodiment of the present invention, the tensioning device includes a fixed block fixedly connected to the square frame, a sliding rod slidably connected to the fixed block, a tensioning block fixedly connected to one end of the sliding rod away from the center of the base, a tensioning wheel rotatably connected to the tensioning block and cooperating with the material picking belt, and a buffer spring sleeved on the outside of the sliding rod, the buffer spring being used to drive the tensioning wheel to move away from the center of the base.

[0011] As a preferred embodiment of the present invention, the transverse driving device includes a suspension frame disposed on the side walls of the two square frames, a drive wheel rotatably connected to the suspension frame, a drive rope connected between the drive wheels on both sides, and an extension bar fixedly connected to the drive rope at the end of the transverse plate.

[0012] As a preferred embodiment of the present invention, the unloading device includes an unloading bracket fixedly connected to the side wall of the square frame, an unloading wheel rotatably connected to the unloading bracket and cooperating with the material picking belt, and a scraper plate for separating the connecting plate from the magnetic block is provided at the end of the unloading bracket.

[0013] As a preferred embodiment of the present invention, a conveyor belt is arranged parallel to the base on the side near the unloading device. Conveying rollers are connected to both sides of the conveyor belt. The conveying rollers are rotatably connected to an extension frame fixedly connected to the side wall of the base. When the connecting plate is separated from the magnetic block, the connecting plate falls onto the conveyor belt under the action of gravity and moves synchronously with the conveyor belt. A guide frame for adjusting the orientation of the connecting plate is slidably connected to the extension frame on the side near the moving direction of the connecting plate.

[0014] The present invention has the following advantages: 1. Parallel cutting and material handling significantly improve processing efficiency. Thanks to the floating traction mechanism, when the gantry performs small-range reciprocating cuts on the current row of plates, the sliding fit between the traction rod and the first extending block absorbs the slight displacement of the gantry, allowing the transverse support to remain stationary at the position of the previous row of plates. This enables the material handling mechanism to independently perform material handling operations within this time window, achieving parallel processing of the cutting and material handling processes and significantly shortening the overall processing cycle of a single sheet of material.

[0015] 2. The floating linkage structure is simple and reliable, avoiding rigid impacts. The floating traction mechanism achieves flexible linkage between the gantry and the transverse seat through the sliding cooperation between the traction rod and the first extension block, transmitting a large range of following motion while isolating small-amplitude cutting motion. This structure consists of only a few mechanical parts and has no electrical control components. Compared with the use of independent servo drives and electronic synchronous control, the structure is simpler and lower in cost, and in principle, it avoids the risk of asynchronous movement caused by electrical faults or signal delays.

[0016] 3. Adjustable pulling stroke to adapt to the production of multi-specification connecting plates. The length of the pulling rod extending beyond the left side of the second extension block can be steplessly adjusted via the locking nut, thereby changing the final stopping position of the transverse seat when the gantry moves over a wide range. When the column width of the connecting plates changes, simply loosen the locking nut, adjust the axial position of the pulling rod, and then re-lock it to complete the adaptation. No parts need to be replaced, improving the equipment's versatility and changeover efficiency.

[0017] 4. The tensioning device automatically compensates for belt slack, ensuring long-term operational stability. The tensioning device continuously applies thrust to the tensioning pulley via a buffer spring, maintaining a constant tension on the conveyor belt despite repeated pressing and resetting by the ejector device and plastic elongation during long-term operation. This structure automatically compensates during equipment operation, eliminating the need for periodic manual adjustments, reducing maintenance frequency, and preventing magnetic block positioning deviations and adsorption failures caused by belt slack.

[0018] 5. The hinged installation of the magnetic blocks enables adaptive fitting, improving adsorption reliability. The magnetic blocks are connected to the material handling belt through hinged joints. When adsorbing the connecting plate, they can adaptively deflect according to the actual posture of the connecting plate surface, so that the working surface of the magnetic blocks makes surface contact with the surface of the connecting plate, increasing the effective adsorption area and reducing the risk of insufficient adsorption force or accidental detachment due to point contact or line contact.

[0019] 6. Two material handling modes can be flexibly switched, balancing efficiency and adaptability. The material handling operation offers two modes: column-by-column adsorption (Mode A) and continuous sweep adsorption (Mode B). In Mode A, the ejector device sequentially adsorbs individual connecting plates, suitable for situations where the spacing between connecting plates is uneven or the size of the connecting plates varies greatly. In Mode B, the ejector device remains extended, and the transverse plate continuously moves to sweep the entire column of connecting plates, significantly shortening the material handling time for the entire column, suitable for batch production conditions where the connecting plates are arranged neatly. Operators can flexibly choose according to the actual sample arrangement, balancing production efficiency and adaptability to different operating conditions.

[0020] 7. The scraper-driven unloading system is simple in structure and reliable in its operation. The unloading device utilizes the power of the conveyor belt itself, separating the connecting plate and the magnetic block by wedging a fixed scraper into the interface. No additional drive components or control system are required. The scraper edges are chamfered to ensure effective peeling while avoiding scratches on the connecting plate surface, thus guaranteeing the product quality of the connecting plate.

[0021] 8. The guide rack automatically adjusts the orientation of the connecting plates, reducing manual intervention. After the connecting plates are detached from the magnetic blocks, they fall freely onto the conveyor belt, and their initial orientation is random. By passively guiding the connecting plates through guide racks set on both sides of the conveyor belt, the connecting plates are gradually adjusted to a uniform orientation during the conveying process, eliminating the need for subsequent manual adjustment and improving the automation level of the production line. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a laser cutting device for processing connecting plates.

[0024] Figure 2 This is a top view of a laser blanking device for processing connecting plates.

[0025] Figure 3 This is a schematic diagram of the conveyor belt structure in a laser cutting device for plate processing.

[0026] Figure 4 This is a schematic diagram of the structure of a gantry and a transverse support in a laser blanking equipment for plate processing.

[0027] Figure 5 This is a schematic diagram of the structure of the gantry and base in a laser blanking equipment for plate processing.

[0028] Figure 6 This is a schematic diagram of the floating traction mechanism in a laser blanking device for plate processing.

[0029] Figure 7 This is a schematic diagram of the material handling mechanism in a laser cutting device for plate processing.

[0030] Figure 8 for Figure 7 The left view.

[0031] Figure 9 This is a schematic diagram of the transverse drive device in a laser blanking equipment for plate processing.

[0032] Figure 10 This is a schematic diagram of the structure of a magnetic block and a connecting plate in a laser blanking device for processing connecting plates.

[0033] Figure 11 This is a schematic diagram of the tensioning device in a laser cutting equipment for processing connecting plates.

[0034] Figure 12 This is a schematic diagram of the unloading device in a laser blanking equipment for plate processing.

[0035] In the diagram: 1. Base; 2. Blade; 3. Metal sheet; 4. Guide rail; 5. Gantry frame; 6. Cutting head; 7. Conveyor belt; 8. Extension frame; 9. Conveyor roller; 10. Guide frame; 11. Transverse seat; 12. Floating traction mechanism; 13. Material handling mechanism; 14. Pull rod; 15. Limiting plate; 16. First extension block; 17. Screw section; 18. Second extension block; 19. Locking nut; 20. Square frame; 21. Support wheel; 22. Material handling belt; 23. Hinge joint; 24. Magnetic block 25. Lateral drive device; 26. U-shaped frame; 27. Guide column; 28. Lateral plate; 29. ​​Ejection device; 30. Mounting frame; 31. Pressure roller; 32. Unloading bracket; 33. Unloading wheel; 34. Scraper; 35. Connecting plate; 36. Suspension frame; 37. Drive wheel; 38. Drive rope; 39. Extension bar; 40. Fixing block; 41. Sliding rod; 42. Buffer spring; 43. Tensioning block; 44. Tensioning wheel; 45. Ejection assembly; 46. Tensioning device; 47. Unloading device. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In one embodiment, see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A laser cutting device for processing sheet metal includes a base 1, which is made of welded steel and undergoes annealing treatment to eliminate welding stress and ensure dimensional stability during long-term use. A support worktable is fixedly installed in the center of the base 1. Several parallel cutting blades 2 are evenly arranged on the support worktable. The cutting blades 2 are made of carbon steel and have serrated tips to reduce the contact area with the metal sheet 3, thereby avoiding back reflection and burn marks during laser cutting. The cutting blades 2 are consumable parts and adopt a modular design; each cutting blade 2 can be independently disassembled and replaced, reducing maintenance costs.

[0038] Two heavy-duty linear guide rails 4 are fixedly installed along the length of the front and rear sides of the base 1, and a gantry frame 5 is slidably connected to the guide rails 4. The gantry frame 5 is driven by a dual-drive servo motor and a gear and rack transmission mechanism, and moves linearly back and forth along the length of the guide rails 4. A fiber laser cutting head 6 is slidably installed on the side of the crossbeam of the gantry frame 5. The laser power of the cutting head 6 is in the range of 3000W to 12000W, and it can cut carbon steel connecting plates 35 with a thickness of 6mm to 20mm. The cutting head 6 is used to cut connecting plates 35 column by column on the metal plate 3 according to a preset program. This equipment also includes a floating traction mechanism 12 and a material handling mechanism 13.

[0039] The material handling mechanism 13 includes two transverse seats 11 that are slidably connected to the guide rails 4 on both sides. The transverse seats 11 are made of high-strength aluminum alloy to reduce the inertia of moving parts and improve response speed. A material handling belt 22 is transversely arranged between the two transverse seats 11. The material handling belt 22 is made of high-temperature resistant rubber and its running direction is perpendicular to the length direction of the base 1. Several hinge joints 23 are fixedly installed on the outer side of the material handling belt 22 at equal intervals by bolts. A magnetic block 24 is hinged to the outer side of each hinge joint 23. Through the adaptive deflection of the hinge joints 23, the magnetic block 24 can achieve surface contact with the surface of the connecting plate 35 when adsorbing it, thereby improving adsorption stability. The magnetic blocks 24 are preferably neodymium iron boron permanent magnets, and their spacing can be adjusted according to the size of the connecting plate 35. For larger connecting plates 35, the number of magnetic blocks 24 can be increased accordingly to ensure sufficient adsorption force.

[0040] A floating traction mechanism 12 is disposed between the transverse support 11 and the gantry frame 5, and includes a first protruding block 16, a second protruding block 18, a traction rod 14, a limiting plate 15, and a locking nut 19. The first protruding block 16 is fixed to the side of the transverse support 11 by bolts, and the second protruding block 18 is fixed to the side of the gantry frame 5 by bolts. The traction rod 14 is made of 45# steel round steel with a diameter of 20mm, and the surface is chrome-plated to enhance rust prevention and wear resistance. The traction rod 14 passes through the through hole of the second protruding block 18 in the left-right direction, and its left end slides into the through hole of the first protruding block 16. The sliding clearance is controlled between 0.1mm and 0.2mm to ensure guiding accuracy and avoid jamming. A limiting plate 15 is fixedly welded to the left end of the pull rod 14. The limiting plate 15 cooperates with the first protruding block 16 to achieve unidirectional limiting. A screw section 17 is machined on the right end of the pull rod 14. Two locking nuts 19 are threadedly connected to the screw section 17. The two locking nuts 19 abut against both sides of the second protruding block 18 to lock the axial position of the pull rod 14.

[0041] The working logic of the floating traction mechanism 12 is as follows: When the gantry 5 moves a large range from the row of connecting plates 35 that has been cut to the row of connecting plates 35 to be cut, the second protruding block 18 drives the traction rod 14 to move synchronously through the locking nut 19. The limiting plate 15 at the left end of the traction rod 14 abuts against the first protruding block 16, thereby pulling the transverse seat 11 to move synchronously to the right through the traction rod 14. When the gantry 5 performs small-range reciprocating cutting on a row of connecting plates 35, due to the sliding fit gap between the traction rod 14 and the first protruding block 16, the slight movement of the traction rod 14 will not be transmitted to the first protruding block 16. The transverse seat 11 remains stationary at the position flush with the previous row of connecting plates 35, thus not affecting the material handling operation.

[0042] In one instance of this embodiment, please refer to Figures 7-12 A square frame 20 is fixedly installed on the outer side of each of the two transverse seats 11. The square frame 20 is made of square tubing welded together. Each square frame 20 has a support wheel 21 rotatably connected to its upper and lower ends. The four support wheels 21 together support the material pick-up belt 22 to form a closed loop. At least one of the support wheels 21 has a motor installed inside to drive the material pick-up belt 22 to run in a cycle.

[0043] An ejector assembly 45 is disposed between the two square frames 20. The ejector assembly 45 drives the material-collecting belt 22 near the base 1 to protrude towards the base 1, so that the gap between the magnetic block 24 and the connecting plate 35 enters the adsorption distance range. Specifically, the ejector assembly 45 includes two U-shaped frames 26 respectively fixed in the middle of the square frames 20. Two chrome-plated guide posts 27 are fixedly installed between the two U-shaped frames 26, and the guide posts 27 are arranged parallel to the base 1. A transverse plate 28 is slidably connected to the guide post 27 through a linear bearing. The linear bearing makes the transverse plate 28 slide along the guide post 27 with low frictional resistance and smooth movement. An ejector device 29 is fixedly installed in the middle of the transverse plate 28, with the protruding end of the ejector device 29 facing the side where the base 1 is located. The ejector device 29 is preferably a cylinder, which has the advantages of fast response speed and low cost; as an optional implementation, an electric push rod can also be used to obtain higher positioning accuracy and precisely control the pressing distance to adapt to plates of different thicknesses. The extended end of the ejector device 29 is fixedly connected to a mounting bracket 30. A pressure roller 31 is rotatably connected to the side of the mounting bracket 30 closest to the base 1. The pressure roller 31 rolls in contact with the inner side of the material-collecting belt 22. When the ejector device 29 extends, the pressure roller 31 presses the material-collecting belt 22 downwards towards the base 1, causing the magnetic chuck 24 to adhere to the surface of the connecting plate 35 for adsorption. When the ejector device 29 retracts, the material-collecting belt 22 resets under its own tension and lifts the adsorbed connecting plate 35, detaching it from the residual material frame. Alternatively, the magnetic chuck 24 can be replaced by an electromagnetic chuck instead of a permanent magnet. The magnitude of the adsorption force can be adjusted by a control system to achieve more thorough material removal control.

[0044] In one instance of this embodiment, please refer to Figures 7-12 A transverse drive device 25 is provided on the left side wall of the square frame 20. This device drives the transverse plate 28 to move back and forth along the guide post 27, aligning the ejector assembly 45 sequentially with the connecting plates 35 at different positions. The transverse drive device 25 includes two suspension brackets 36 fixed to the side wall of the square frame 20. Each suspension bracket 36 has a drive wheel 37 rotatably connected to it, and a drive rope 38 connects the two drive wheels 37. An extension bar 39 is provided at the end of the transverse plate 28, and the extension bar 39 is fixedly connected to the drive rope 38. One of the drive wheels 37 is connected to a servo motor, which drives the transverse plate 28 to move precisely to the target position along the guide post 27 via the drive rope 38.

[0045] A tensioning device 46 is provided on the side of the square frame 20 located at the rear of the base 1, away from the center of the base 1. This device drives the material handling belt 22 to maintain a constant tension, compensating for any slack that occurs when the ejector device 29 is operating. The tensioning device 46 includes a fixed block 40 fixed to the square frame 20, with a sliding rod 41 slidably connected to the fixed block 40 in the front-rear direction. A tensioning block 43 is fixedly connected to one end of the sliding rod 41 away from the center of the base 1, and a tensioning wheel 44 that cooperates with the material handling belt 22 is rotatably connected to the tensioning block 43. A buffer spring 42 is sleeved on the outside of the sliding rod 41, with one end of the buffer spring 42 abutting against the tensioning block 43 and the other end abutting against the fixed block 40. The preload of the buffer spring 42 can be adjusted by adjusting the axial position of the sliding rod 41. Under the continuous thrust of the buffer spring 42, the tension wheel 44 always presses against the material taking belt 22 in a direction away from the center of the base 1, so that the material taking belt 22 always remains taut during the repeated pressing and resetting process of the ejector device 29, avoiding transmission failure or adsorption position deviation caused by belt slack.

[0046] A stripping device 47 is provided on the side of the square frame 20 located in front of the base 1 away from the center of the base 1, for separating the connecting plate 35 from the magnetic block 24. The stripping device 47 includes a stripping bracket 32 ​​fixed to the side wall of the square frame 20, and a stripping wheel 33 rotatably connected to the stripping bracket 32, which rolls with the inner side of the picking belt 22. A scraper 34 is fixedly installed at the end of the stripping bracket 32. The scraper 34 has a U-shaped structure and its edges are chamfered to avoid scratching the surface of the connecting plate 35. When the picking belt 22 drives the connecting plate 35 adsorbed on the magnetic block 24 to the position of the stripping device 47, the connecting plate 35 passes through the gap between the stripping wheel 33 and the scraper 34 with the picking belt 22. The front end of the scraper 34 inserts into the mating surface between the connecting plate 35 and the magnetic block 24, and smoothly peels the connecting plate 35 off the magnetic block 24.

[0047] In one instance of this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 A conveyor belt 7 is installed on the side of the base 1 near the unloading device 47. The conveyor belt 7 is arranged parallel to the base 1 and is preferably made of PVC. The two sides of the conveyor belt 7 are supported by conveyor rollers 9, which are rotatably connected to the extension frame 8. The extension frame 8 has an L-shaped structure, with its front end supporting the conveyor rollers 9 and its rear end fixedly connected to the front side wall of the base 1. A guide frame 10 is slidably connected to the extension frame 8 on the side (i.e., the right side) near the moving direction of the connecting plate 35. The guide frame 10 can be fixed in different positions by bolts. The guiding surface of the guide frame 10 is deflected away from the center of the conveyor belt 7. By adjusting the distance between the two guide frames 10, the connecting plates 35, which fall onto the conveyor belt 7 with different orientations, are gradually guided by the guide frames 10 as they move to the right with the conveyor belt 7, and finally adjusted to a uniform left-right orientation, neatly arranged and output to the next process to meet the sorting requirements of connecting plates 35 with different widths.

[0048] The complete working process of this equipment includes the following steps: Step 1: Material Preparation The metal sheet 3 to be cut is hoisted onto the cutting strip 2 using a hoisting device. The sheet is precisely positioned using locating pins, and then a pneumatic clamping device is activated to fix the sheet onto the cutting strip 2. A pre-programmed cutting program for the connecting plate 35 is imported into the CNC system; this program has already arranged the connecting plates 35 in columns. At this time, the material handling mechanism 13 is in its initial position (i.e., outside the left edge of the sheet), the ejector device 29 is in the retracted state, the lower surface of the material handling belt 22 is approximately 20mm higher than the upper surface of the connecting plate 35, and the magnetic suction block 24 is beyond its adsorption distance range, thus not interfering with subsequent cutting operations.

[0049] Step 2: Cut the first column plate 35 The equipment is started, and the gantry 5 moves along the guide rail 4 to the cutting start position of the first column plate 35. The laser cutting head 6 cuts the first column plate 35 according to the preset program. During this process, the gantry 5 makes small reciprocating movements within the range of the first column plate 35. The slight movement of the traction rod 14 is absorbed by the sliding fit between it and the first extension block 16, and the transverse seat 11 remains stationary in the initial position.

[0050] Step 3: The gantry frame 5 moves over a large range, simultaneously bringing the material handling mechanism 13 into position. After the first column plate 35 is cut, the gantry 5 moves to the right along the guide rail 4 to the cutting position of the second column plate 35. At this time, the second protruding block 18 on the side of the gantry 5 drives the pull rod 14 to move to the right through the locking nut 19. When the limiting plate 15 at the left end of the pull rod 14 abuts against the first protruding block 16, the pull rod 14 begins to pull the transverse seat 11 to move synchronously to the right along the guide rail 4. When the gantry 5 reaches the cutting area of ​​the second column plate 35, the material handling mechanism 13 stops at a position flush with the center of the first column plate 35. For column plates 35 with different column widths, the final stopping position of the transverse seat 11 can be adjusted by adjusting the length of the pull rod 14 extending to the left side of the second protruding block 18. After adjustment, the second protruding block 18 is locked and fixed on both sides by two locking nuts 19.

[0051] Step 4: Take material from the first connecting plate 35. During the cutting process of the second row of connecting plates 35 by the gantry 5, the material handling mechanism 13 utilizes the time window during which the transverse seat 11 remains stationary while the gantry 5 reciprocates within a small range to perform a material handling operation on the first row of already cut connecting plates 35. At this time, due to the sliding engagement between the traction rod 14 and the first extension block 16 in the floating traction mechanism 12, the cutting motion of the gantry 5 will not affect the positioning of the material handling mechanism 13, thus achieving parallel operation of cutting and material handling. The material handling operation can be performed in one of the following two modes: Mode A, "Column-by-Column Adsorption": The transverse drive device 25 drives the transverse plate 28 to move along the guide column 27 towards the rear of the base 1. When the transverse plate 28 reaches the position directly above the last connecting plate 35, the extension end of the ejector device 29 extends downward, pushing the material-taking belt 22 towards the base 1 through the pressure roller 31, causing the magnetic block 24 to move down to the adsorption distance range and adsorb the connecting plate 35 below. After adsorption is completed, the ejector device 29 retracts in the opposite direction. Under the action of the tensioning device 46, the material-taking belt 22 is restored to tension and drives the magnetic block 24 and the adsorbed connecting plate 35 to move upward, causing the connecting plate 35 to detach from the remaining material frame below. Afterward, the transverse drive device 25 drives the transverse plate 28 forward again by a preset distance, so that the transverse plate 28 reaches the position directly above the next connecting plate 35, repeating the extension and retraction action of the ejector device 29 to adsorb the next connecting plate 35 to a high position. Continue this process until all the connecting plates 35 in that column are adsorbed.

[0052] Mode B, "Continuous Sweeping Adsorption": The transverse drive device 25 drives the transverse plate 28 to move along the guide post 27 towards the rear of the base 1. When the transverse plate 28 reaches the position directly above the last side connecting plate 35, the extended end of the ejector device 29 extends downward, pushing the material-taking belt 22 towards the base 1 through the pressure roller 31, causing the magnetic blocks 24 to move downward into the adsorption distance range. After the magnetic blocks 24 adsorb the first connecting plate 35, the ejector device 29 remains extended, while the transverse drive device 25 drives the transverse plate 28 to move continuously from back to front. As the pressure roller 31 continuously pushes the material-taking belt 22 downward, as the transverse plate 28 moves forward, the pressure area sweeps past the top of the connecting plates 35 from back to front. Each magnetic block 24 on the material-taking belt 22 enters the adsorption distance range in sequence in the pressure area, contacting and adsorbing each connecting plate 35 in that row one by one. When the transverse plate 28 moves to the foremost position, all the connecting plates 35 in the column from back to front are attracted to the material picking belt 22 by the magnetic block 24, completing the one-time picking of the entire column of connecting plates 35.

[0053] Step 5: 35-inch transverse conveyor and unloading After the picking belt 22 attracts the connecting plate 35, the drive motor inside the support wheel 21 starts, driving the picking belt 22 forward and conveying the connecting plate 35 attracted to the outer surface of the picking belt 22 forward. When the first connecting plate 35 moves with the picking belt 22 to the position of the unloading device 47, the connecting plate 35 passes through the gap between the unloading wheel 33 and the scraper 34. The front end of the scraper 34 wedges into the interface between the connecting plate 35 and the magnetic block 24, applying a separation force away from the magnetic block 24 to the connecting plate 35, and smoothly peeling the connecting plate 35 off the magnetic block 24. The connecting plate 35, detached from the magnetic block 24, falls downward onto the conveyor belt 7 below under the action of gravity. The conveyor belt 7 conveys the connecting plate 35 to the right. During the conveying process, the connecting plate 35 passes between two guide frames 10. The deflection guide surfaces of the guide frames 10 apply a guiding force to the connecting plate 35, gradually adjusting the orientation of the connecting plate 35 to a uniform left-right direction, and neatly arranging it for output to the next process. After the material is removed, the picking belt 22 continues to run in a loop, and the magnetic block 24 returns with the picking belt 22 to prepare for the next cycle of adsorption operation.

[0054] Step Six: Cyclic Operation After the second row of connecting plates 35 is cut, the gantry 5 moves to the right along the guide rail 4 to the cutting position of the third row of connecting plates 35. At the same time, the floating traction mechanism 12 drives the material handling mechanism 13 to move synchronously to a position flush with the second row of connecting plates 35. Thereafter, the material handling, conveying, and unloading processes in steps four and five are repeated. This cycle continues until all connecting plates 35 on the entire metal sheet 3 are cut and removed.

[0055] Step 7: Cleaning up leftover materials and proceeding to the next processing round After the entire sheet metal is processed, the pneumatic clamping device releases its grip on the scrap frame, which is then removed from the cutter bar 2 worktable by manual or automated means. The next sheet metal 3 to be cut is then hoisted onto the cutter bar 2 worktable, beginning a new processing cycle.

[0056] This invention provides a laser cutting device for processing connecting plates. A floating traction mechanism 12 enables parallel cutting and material handling, significantly improving processing efficiency. This purely mechanical linkage structure is simple and reliable, requiring no electrical synchronization control. The adjustable stroke of the traction rod 14 and the automatic compensation for belt slack by the tensioning device 46 allow the equipment to adapt to the production of multiple specifications of connecting plates 35 and ensure stable long-term operation. The hinged installation of the magnetic blocks 24 achieves adaptive surface contact and reliable adsorption. The material handling operation supports both column-by-column adsorption and continuous sweeping modes, balancing adaptability and efficiency. The non-powered peeling device 47 and the automatic orientation adjustment of the connecting plates 35 by the guide rack 10 reduce manual intervention and improve the automation level of the production line.

[0057] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A laser cutting device for processing a web plate, comprising a base, a knife strip is arranged in the middle of the base, a metal plate is placed on the knife strip, guide rails are arranged on both sides of the base, a gantry frame is slidingly connected to the guide rails and moves along the length direction of the guide rails, a cutting head is slidingly arranged on the side surface of the gantry frame, and the cutting head is used for cutting a web plate on the metal plate, characterized in that, It also includes a floating traction mechanism and a material handling mechanism; The material handling mechanism includes a transverse sliding seat that is slidably connected to the two guide rails, a material handling belt is provided between the two transverse sliding seats, the running direction of the material handling belt is perpendicular to the length direction of the base, and a magnetic suction block for adsorbing the connecting plate is provided on the outer side of the material handling belt. The floating traction mechanism includes a traction rod disposed between the transverse sliding seat and the gantry frame. When the gantry frame moves from a row of connecting plates that has been cut to a row of connecting plates to be cut, the gantry frame pulls the transverse sliding seat to move synchronously through the traction rod. When the gantry frame cuts a row of connecting plates, the transverse sliding seat stops at a position flush with the previous row of connecting plates.

2. The laser blanking equipment for processing connecting plates according to claim 1, characterized in that, The floating traction mechanism includes a first protruding block disposed on the side of the transverse shift seat and a second protruding block disposed on the side of the gantry frame. The traction rod passes through the end of the second protruding block and is slidably connected to the first protruding block. A limit plate is provided at the end of the traction rod away from the second protruding block. The limit plate cooperates with the transverse shift seat to limit the movement. A screw section is provided on the side of the traction rod near the second protruding block. Locking nuts that cooperate with the second protruding block are threadedly connected to both sides of the screw section.

3. The laser blanking equipment for processing connecting plates according to claim 1, characterized in that, Two transverse seats are provided with square frames on the side away from the base. Support wheels that cooperate with the material picking belt are provided on the upper and lower sides of the two square frames. An ejection assembly is provided between the two square frames. The ejection assembly is used to drive the material picking belt on the side closer to the base to move towards the base so that the distance between the magnetic block and the connecting plate is within the adsorption distance range.

4. The laser blanking equipment for processing connecting plates according to claim 3, characterized in that, The ejection assembly includes a U-shaped frame disposed in the middle of the square frame, a guide column arranged parallel to the base between the two U-shaped frames, a transverse plate slidably connected to the middle of the guide column, an ejection device disposed in the middle of the transverse plate, the protruding end of the ejection device facing one side of the base, and a mounting frame connected to the protruding end of the ejection device, and a pressure roller cooperating with the material picking belt disposed on the side of the mounting frame near the base.

5. The laser blanking equipment for processing connecting plates according to claim 4, characterized in that, The sidewall of the square frame is provided with a transverse driving device that drives the transverse plate to move along the guide post. One side of the square frame away from the center of the base is provided with a tensioning device, which is used to drive the material picking belt to keep it in a tensioned state. The other side of the square frame away from the center of the base is provided with a material unloading device, which is used to separate the connecting plate and the magnetic block.

6. The laser blanking equipment for processing connecting plates according to claim 5, characterized in that, The tensioning device includes a fixed block fixedly connected to the square frame, a sliding rod slidably connected to the fixed block, a tensioning block fixedly connected to one end of the sliding rod away from the center of the base, a tensioning wheel rotatably connected to the tensioning block and cooperating with the material picking belt, and a buffer spring sleeved on the outside of the sliding rod, the buffer spring being used to drive the tensioning wheel to move away from the center of the base.

7. The laser blanking equipment for processing connecting plates according to claim 5, characterized in that, The lateral movement drive device includes a suspension frame disposed on the side walls of the two square frames. The suspension frame is rotatably connected to a drive wheel, and a drive rope is connected between the drive wheels on both sides. The end of the lateral movement plate is provided with an extension bar that is fixedly connected to the drive rope.

8. The laser blanking equipment for processing connecting plates according to claim 5, characterized in that, The unloading device includes an unloading bracket fixedly connected to the side wall of the square frame, an unloading wheel rotatably connected to the unloading bracket and cooperating with the material picking belt, and a scraper plate for separating the connecting plate from the magnetic block at the end of the unloading bracket.

9. A laser blanking device for processing connecting plates according to claim 8, characterized in that, A conveyor belt is arranged parallel to the base on the side near the unloading device. Conveying rollers are connected to both sides of the conveyor belt. The conveying rollers are rotatably connected to the extension frame fixedly connected to the side wall of the base. When the connecting plate is separated from the magnetic block, the connecting plate falls onto the conveyor belt under the action of gravity and moves synchronously with the conveyor belt. A guide frame for adjusting the orientation of the connecting plate is slidably connected to the extension frame on the side near the moving direction of the connecting plate.

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