A laser cutting waste collection device and a method of collecting

Abstract

This invention discloses a laser cutting waste collection device and method, belonging to the field of laser cutting technology. The device includes a frame, a waste container, multiple rolling wheels, and at least one limiting member. The rolling wheels are installed at the bottom of the frame and are used to roll on the working surface to support the frame. The limiting member is installed at the rear end of the bottom of the frame and is used to cooperate with a limiting guide rail laid under the laser cutting equipment to limit the movement direction of the frame along the limiting guide rail. The arrangement of the rolling wheels and the limiting member satisfies the following condition: when the frame moves to the point where at least part of it is outside the range of the laser cutting equipment, the rolling wheels contact the working surface to bear weight, while the limiting member maintains its cooperation with the limiting guide rail. Through the coordinated arrangement of the limiting member and the rolling wheels, this invention ensures that the frame maintains stable support and precise guidance when moving out of the equipment for waste cleaning, avoiding operational difficulties caused by frame tilting or derailment, and improving the efficiency and safety of waste cleaning.

Description

Technical Field

[0001] This invention relates to the field of laser cutting waste collection technology, specifically to a laser cutting waste collection device and its collection method. Background Technology

[0002] Laser cutting machines generate a large amount of waste during processing, including cut-off workpiece scraps, molten slag, and dust. This waste usually needs to be cleaned up promptly to avoid affecting the normal operation of the equipment or causing safety hazards. Currently, most large and medium-sized laser cutting equipment uses a waste collection trolley installed under the machine tool, which is manually dragged in and out of the equipment area for waste removal.

[0003] Existing waste collection trolleys mainly employ the following technical solutions: First, simple handcarts without a guide structure, such as the laser cutting machine receiving trolley disclosed in CN216541472U, which only has casters at the bottom and relies on manual pushing and pulling for movement. This solution relies entirely on the operator's visual inspection and experience during removal and repositioning, easily leading to collisions or misalignment, resulting in low work efficiency. Second, solutions with guide rails installed below the equipment, such as the laser cutting machine disclosed in CN208977083U, which has positioning rollers on both sides of the waste collection trolley and guide grooves under the frame that cooperate with the positioning rollers. While this solution solves the positioning problem when the trolley is pushed in, the length of the guide rail is usually equivalent to the length of the equipment. When the trolley is moved out of the equipment for waste cleaning, as the frame gradually leaves the equipment's coverage area, the positioning rollers will disengage from the guide grooves, causing the frame to lose its guidance. At this point, the frame is only supported by the wheels, and the operator may cause the frame to deflect or tilt due to external forces during waste cleaning, making accurate repositioning difficult after cleaning.

[0004] Therefore, it is necessary to develop a laser cutting waste collection device that can maintain stable support and precise guidance throughout the entire waste disposal process—including removal, cleaning, and resetting—to solve the aforementioned problems in the prior art. Summary of the Invention

[0005] The purpose of this invention is to address the problems existing in the prior art by providing a laser cutting waste collection device.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a laser cutting waste collection device, comprising a frame and a waste container placed on the frame. It also includes a plurality of rolling wheels installed at the bottom of the frame, which roll on the working surface to support the frame. Furthermore, it includes at least one limiting member installed at the rear end of the bottom of the frame, which cooperates with a limiting guide rail laid below the laser cutting equipment to limit the movement direction of the frame along the limiting guide rail. The arrangement of the rolling wheels and the limiting member satisfies the following condition: when the frame moves to the point where at least part of it is outside the range of the laser cutting equipment, the rolling wheels contact the working surface to bear weight, while the limiting member maintains its cooperation with the limiting guide rail.

[0007] Preferably, the limiting member is a guide wheel, and the guide wheel is provided with an annular groove or annular flange that cooperates with the limiting guide rail.

[0008] Preferably, the limiting member is a sliding limiting member, used for sliding cooperation with the limiting guide rail.

[0009] Preferably, the sliding limiting component is a T-shaped slide rail or a dovetail groove.

[0010] Preferably, the plurality of rolling wheels located at the rear of the frame are coaxially connected via a pivot.

[0011] Preferably, the device also includes a power system for driving the device to move; the power system includes a motor mounted on the frame and a transmission assembly connecting the motor to the shaft, the transmission assembly including a drive sprocket mounted on the motor, a driven sprocket mounted on the shaft, and a chain connecting the drive sprocket and the driven sprocket.

[0012] Preferably, a cable chain is provided on one side of the vehicle frame, and a fireproof plate is provided on the cable chain.

[0013] Preferably, the system also includes load-bearing wheels mounted on the frame, which assist in supporting the frame. The load-bearing wheels can roll on limiting guide rails to share the load of the rolling wheels and reduce the contact pressure between the rolling wheels and the working surface.

[0014] Preferably, the waste container includes a bottom plate and side plates made of refractory material, and the bottom plate and the side plates are connected by angle steel.

[0015] The present invention also provides a waste collection method, employing a collection device as described above, comprising the following steps:

[0016] The collecting device is placed on the limiting guide rail below the laser cutting equipment, so that the limiting component cooperates with the limiting guide rail;

[0017] The collecting device is driven to move along the limiting guide rail, and the limiting member still engages with the limiting guide rail when the frame is at least partially away from below the laser cutting equipment;

[0018] Clean the waste from the waste container;

[0019] The collecting device is driven to move backward and reset, causing the limiting member to guide the frame back below the laser cutting equipment along the limiting guide rail. Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The laser cutting waste collection device of the present invention, through the cooperation of limiting components and limiting guide rails, can maintain the constraint on the movement direction of the vehicle frame during the process of the vehicle frame being moved out of the equipment. Even if the front end of the vehicle frame has been moved out of the equipment, its rear end is still in cooperation with the limiting components and guide rails, effectively preventing the vehicle frame from deflecting or derailing, and ensuring the stability and safety of the movement process.

[0021] 2. The coordinated arrangement of the rolling wheels and limiting components in this device ensures that when the chassis is partially removed from the equipment, the rolling wheels in contact with the working surface bear the entire support task, while the limiting components focus on guiding the movement. This clear division of labor not only simplifies the structure but also allows the chassis to remain stably on the working surface after removal, facilitating waste removal by operators.

[0022] 3. By introducing load-bearing wheels as auxiliary supports, and having the load-bearing wheels roll on the limiting guide rails, the high load-bearing capacity and low wear characteristics of the guide rails can be effectively utilized to share the load of the rolling wheels, extend the service life of the rolling wheels, and further enhance the overall stability of the frame after it is removed, which is especially suitable for heavy-duty waste collection scenarios.

[0023] 4. The device offers various methods for implementing the limiting components, including rolling guide wheels and sliding rails, which can adapt to different working conditions and cost budgets, and have good versatility and scalability. Attached Figure Description

[0024] Figure 1 This is a top-view three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention.

[0026] Figure 3 This is a front view structural diagram of the present invention.

[0027] Figure 4 This is a side view of the three-dimensional structure of the present invention.

[0028] Figure 5 This is a schematic diagram of the connection structure between the power system and the rotating shaft of the present invention.

[0029] In the diagram: 1. Frame; 2. Waste container; 21. Base plate; 22. Side plate; 23. Angle steel; 3. Rolling wheel; 4. Working surface; 5. Limiting component; 6. Limiting guide rail; 7. Shaft; 8. Power system; 81. Motor; 82. Transmission assembly; 9. Cable chain; 10. Fireproof board; 11. Load-bearing wheel. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely 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.

[0031] Example 1: Basic Structure Example

[0032] Please refer to Figures 1 to 3 This embodiment provides a laser cutting waste collection device. The device mainly includes a frame 1, a waste container 2, multiple rolling wheels 3, and at least one limiting member 5.

[0033] The frame 1 serves as the load-bearing foundation of the entire device. In this embodiment, the frame 1 is constructed using high-strength angle steel 23 through a welding process. A waste container 2 is mounted on the frame 1 to hold the waste generated during laser cutting. In this embodiment, the waste container 2 includes a base plate 21 and side plates 22 made of refractory material, which are connected and fixed by angle steel 23. The refractory material is refractory brick, which has excellent high-temperature resistance and can form a thermal insulation layer between the high-temperature waste and the metal frame 1, protecting the frame 1 structure from heat damage. The angle steel 23 acts as a connector, firmly fixing the refractory brick to the frame 1 to prevent loosening or detachment during movement. This structural design ensures that the waste container 2 possesses both high-temperature resistance and sufficient structural strength.

[0034] Multiple rollers 3 are mounted on the bottom of the frame 1. These rollers 3 roll on the working surface 4, thereby supporting the entire frame 1 and the waste container 2 on it. The working surface 4 can be the floor of a factory workshop or a hardened, flat surface. The rollers 3 can be directional wheels, such as directional nylon wheels. Nylon material has the advantages of good wear resistance, high load-bearing capacity, and low cost, making it suitable for long-term use in industrial environments. The design of the directional wheels allows them to roll only in one direction, helping to maintain the straightness of the frame 1 during movement and reducing deviation.

[0035] Please refer to Figure 2 and Figure 3At least one limiting member 5 is installed at the bottom rear end of the frame 1. The limiting member 5 is used to cooperate with the limiting guide rail 6 laid under the laser cutting equipment to limit the movement direction of the frame 1 along the limiting guide rail 6. The limiting guide rail 6 is laid along the length of the laser cutting equipment, and its length can be set to not exceed the length range of the equipment. The advantage of this laying method is that the limiting guide rail 6 is completely located under the equipment and does not extend into the workshop aisle area, thereby avoiding tripping hazards caused by the guide rail protruding from the ground or obstructing the passage of transport vehicles, and reducing safety hazards in the workshop.

[0036] The core of this embodiment lies in the arrangement of the rolling wheel 3 and the limiting member 5. Specifically, when the frame 1 needs to be moved out from under the laser cutting equipment for waste removal, the frame 1 moves forward along the limiting guide rail 6. When the frame 1 has moved to the point where it is at least partially out of the range of the laser cutting equipment, that is, the front end of the frame 1 has left the area covered by the equipment, the rolling wheel 3 at the front of the frame 1 disengages from the area under the equipment, contacts the working surface 4, and bears the weight of the front of the frame 1. At the same time, the limiting member 5 installed at the bottom of the rear end of the frame 1 remains in cooperation with the limiting guide rail 6, continuing to constrain the movement direction of the frame 1 and preventing the rear of the frame 1 from shifting laterally or derailing.

[0037] The technical advantages of this arrangement are reflected in several aspects. First, it fully utilizes the load-bearing capacity of the working surface 4 and the guiding capacity of the limiting guide rail 6, allowing each to perform its specific function. The working surface 4 has a large area and is easily accessible, making it suitable as a load-bearing foundation after removal; the limiting guide rail 6 has high precision and rigidity, making it suitable as a guiding reference during movement. Second, after the frame 1 is removed, its front is directly supported by the working surface 4, while its rear is indirectly supported and guided by the limiting guide rail 6 through the limiting component 5. The frame 1 maintains a stable three- or four-point support state and will not tip over. Third, because the limiting component 5 always maintains its engagement with the guide rail, even if the front of the frame 1 has been removed, the frame 1 will not move or turn unexpectedly due to external forces when the operator is cleaning up waste materials, improving operational safety. After cleaning, the operator can push the frame 1 backward to reset it, and the limiting component 5 guides the frame 1 accurately back under the laser cutting equipment along the limiting guide rail 6.

[0038] Please refer to Figure 2 , Figure 3 and Figure 5 In this embodiment, multiple rolling wheels 3 located at the rear of the frame 1 can be coaxially connected via a pivot 7. This coaxial design ensures that the rotation of the multiple rolling wheels 3 at the rear remains synchronized, reducing sliding friction and abnormal wear caused by inconsistent wheel speeds. Simultaneously, the coaxial connection simplifies the assembly structure, requiring only one pivot 7 to drive multiple rolling wheels 3, facilitating the subsequent introduction of the power system 8.

[0039] Example 2: Specific Form of Limiting Component 5

[0040] This embodiment is basically the same as the structure of embodiment 1. The difference is that the specific form of the limiting member 5 has been refined and two different implementation methods have been provided.

[0041] As a specific implementation method, the limiting component 5 can be a guide wheel. Please refer to [reference needed]. Figure 3 and Figure 5 The guide wheel has an annular groove that mates with the limiting guide rail 6. The limiting guide rail 6 is correspondingly a convex rail, with a raised structure on its top that matches the annular groove. When the guide wheel is placed on the limiting guide rail 6, the convex part of the guide rail engages with the annular groove of the guide wheel, forming a rolling fit. This combination of a concave wheel and a convex rail effectively restricts the lateral freedom of the frame 1, allowing it to move only longitudinally along the guide rail. Simultaneously, the rolling friction coefficient is low, resulting in low resistance during frame 1 movement and easy operation. This fit also has a self-centering characteristic; even if the frame 1 is slightly misaligned, the contact between the groove and the convex rail will generate a corrective torque, causing the frame 1 to automatically return to the centered position.

[0042] In another variation, the guide wheel can also be provided with an annular flange (not shown in this embodiment), and the corresponding limiting guide rail 6 is provided with a groove, in which the flange is embedded. This structure, in conjunction with the grooved guide rail, is functionally equivalent and can also achieve the guiding and limiting function. The choice of which structure to use can be optimized based on factors such as the specific installation space and load direction. For example, when the guide wheel needs to withstand a large upward pulling force, the structure of the flange embedded in the groove may provide better anti-detachment capability.

[0043] As another specific implementation (not shown in this embodiment), the limiting member 5 can be a sliding member for sliding engagement with the limiting guide rail 6. The sliding member can be a T-shaped slide rail. Specifically, the T-shaped slide rail has a T-shaped head that is embedded in the T-shaped groove of the limiting guide rail 6, forming a sliding engagement. In this engagement, the contact surface between the T-shaped head and the T-shaped groove undertakes the guiding task and can also transmit vertical loads. The technical characteristics of this sliding engagement method are its simple structure and strong load-bearing capacity, making it particularly suitable for applications where the moving speed requirement is not high but the stability and load-bearing capacity requirements are high. The sliding engagement has a large contact area and a small pressure per unit area, which helps to reduce wear and extend service life. However, correspondingly, the sliding friction coefficient is greater than the rolling friction coefficient, requiring a larger thrust during movement.

[0044] In other alternative solutions, the sliding component can also employ a dovetail groove structure. The dovetail groove has a trapezoidal cross-section, and the dovetail slider mates with the dovetail guide rail, achieving guidance and load-bearing through the contact of the inclined surfaces. A key feature of the dovetail groove structure is that the clearance can be adjusted; this clearance can be eliminated by grinding or adding shims, achieving high guiding accuracy. Simultaneously, the dovetail groove can withstand a certain degree of overturning torque, making it suitable for applications where the frame 1 may be subjected to eccentric loading. When using a dovetail groove structure, lubricant is typically added between the sliding surfaces to reduce friction and wear.

[0045] The two implementation methods of the aforementioned limiting component 5 each have their own characteristics and can adapt to different working conditions. The guide wheel solution is easy to move and suitable for scenarios with frequent movement; the sliding component solution has a strong load-bearing capacity and is suitable for heavy-load or high-stability scenarios. Those skilled in the art can choose the appropriate solution according to actual needs, and all such solutions are within the protection scope of this invention.

[0046] Example 3: Example of introducing load-bearing wheel 11

[0047] This embodiment, based on embodiment 1 or embodiment 2, adds a load-bearing wheel 11 as an auxiliary support structure. Please refer to... Figure 2 , Figure 3 and Figure 5 The load-bearing wheel 11 is mounted on the frame 1, and its specific installation position can be set as needed. As a typical arrangement, the load-bearing wheel 11 can be installed at the rear of the frame 1, near the limiting member 5, for example, side by side with the limiting member 5 or staggered front and rear. The load-bearing wheel 11 is used to roll on the limiting guide rail 6 to assist in supporting the frame 1.

[0048] The design intent and working principle of the load-bearing roller 11 are based on the following considerations. The limiting guide rail 6 is typically made of high-strength metal materials such as steel rails and is firmly fixed to the ground by pressure blocks and pads, providing a stable installation foundation. Therefore, its load-bearing capacity and wear resistance are superior to ordinary working surfaces 4. When the frame 1 is under heavy load, for example, when a large amount of heavy metal scrap accumulates in the waste container 2, relying solely on the rolling roller 3 for support on the working surface 4 may lead to excessive wear of the rolling roller 3, or damage to the ground if the working surface 4 is not sufficiently robust. In this case, the introduction of the load-bearing roller 11 allows it to roll on the limiting guide rail 6, distributing part of the load, thereby reducing the pressure on the rolling roller 3 and extending its service life.

[0049] From a stress analysis perspective, when the frame 1 is stationary or moving, its total weight is borne by multiple support points. After adding the load-bearing wheel 11, the weight that was originally entirely borne by the rolling wheel 3 is partially transferred to the load-bearing wheel 11, and then transmitted to the ground through the limiting guide rail 6. Since the rigidity of the limiting guide rail 6 is much higher than that of the ordinary working surface 4, this load transfer helps to reduce the overall deformation of the frame 1 and maintain the uniform force on each wheel set.

[0050] The contact between the load-bearing roller 11 and the limiting guide rail 6 further improves the stability of the frame 1's movement. Especially when the frame 1 is partially removed from the equipment and the center of gravity shifts forward, the load on the rear of the frame 1 is relatively reduced, but the rear of the frame 1 still needs to be guided by the limiting member 5. If the rear loses vertical support, the limiting member 5 may affect the guiding accuracy due to changes in the force state. The presence of the load-bearing roller 11 can effectively suppress the downward trend of the rear of the frame 1, ensuring that the limiting member 5 is always in the correct engagement position and maintaining stable guiding performance.

[0051] It is worth noting that the load-bearing roller 11 and the rear rolling roller 3 can coexist. That is, the rear of the frame 1 has both coaxially connected rolling rollers 3 and independent load-bearing rollers 11, both of which jointly support the frame 1. In this configuration, the rolling rollers 3 mainly roll on the working surface 4, while the load-bearing roller 11 rolls on the limiting guide rail 6, forming multi-point support. When the frame 1 is removed from the equipment, the working surface 4 of the front rolling roller 3 bears the weight, while the rear rolling roller 3 may partially or completely detach from the working surface 4. At this time, the load-bearing roller 11 still rolls on the guide rail, bearing the rear weight and ensuring that the frame 1 does not tilt due to the loss of rear support.

[0052] In another configuration, if the frame 1 is structurally robust enough and the load-bearing capacity of the load-bearing wheels 11 is sufficient, some of the rear rollers 3 can even be eliminated, with the load-bearing wheels 11 bearing the rear weight entirely on the limiting guide rail 6. In this case, after the frame 1 is removed from the equipment, the working surface 4 of the front rollers 3 bears the weight, the guide rail of the rear load-bearing wheels 11 bears the weight, and the limiting member 5 still maintains its guiding function. This configuration reduces the number of rollers 3 and simplifies the structure, but requires the load-bearing wheels 11 to have sufficient load-bearing capacity and stability. Regardless of the configuration used, as long as the core condition of "at least some of the rollers 3 contacting the working surface 4 to bear the weight when the frame 1 is removed, while the limiting member 5 remains in contact with the guide rail" is met, the purpose of this invention can be achieved.

[0053] Example 4: Example of introducing power system 8

[0054] This embodiment, based on embodiment 3, adds a power system 8 to achieve automatic movement of the device. Please refer to... Figure 2 and Figure 5 The power system 8 includes a motor 81 mounted on the frame 1 and a transmission assembly 82 connecting the motor 81 to the shaft 7. The shaft 7 is the shaft that connects the multiple rolling wheels 3 at the rear.

[0055] Motor 81 is the power source, and a suitable model with appropriate power and speed can be selected as needed. Motor 81 can be directly mounted on the frame 1 and fixed by motor 81 mount. One specific implementation of transmission component 82 is chain drive. The specific structure includes a drive sprocket mounted on the output shaft of motor 81, a driven sprocket mounted on the rotating shaft 7, and a chain connecting the drive sprocket and the driven sprocket. When motor 81 starts, its output torque is transmitted to the chain through the drive sprocket, and the chain then transmits the power to the driven sprocket, thereby driving the rotating shaft 7 to rotate. The rotating shaft 7 drives the coaxial rolling wheel 3 to rotate, realizing the movement of frame 1. Chain drive has the advantages of high strength, good wear resistance, and adaptability to high temperature and oily environments.

[0056] By controlling the forward and reverse rotation of motor 81, the frame 1 can move forward and backward, thus enabling the automatic entry and exit of the waste collection device. Operators can use control buttons or a remote control to perform the removal and reset of the device with a single click, avoiding manual dragging and improving waste cleaning efficiency. In practical use, limit switches or position sensors can also be set to automatically stop the frame 1 when it moves to a preset position, further improving operational convenience and safety.

[0057] Example 5: Example of introducing a wiring system

[0058] Please refer to Figure 1 and Figure 4 This embodiment, based on embodiment 1, adds a cable routing system to protect the cables. A cable carrier 9 is provided on one side of the frame 1. The cable carrier 9 is a flexible cable protection device; it is hollow inside and consists of multiple links, allowing it to bend within a specific plane. One end of the cable carrier 9 is fixed to the frame 1, and the other end is fixed to a fixed point on the equipment or the ground. When the frame 1 moves, the cable carrier 9 bends or extends accordingly, ensuring that the internal cables remain in an orderly and protected state.

[0059] A fireproof plate 10 is installed above the cable carrier 9. The fireproof plate 10 can be made of metal sheet, such as steel plate. To further improve fire resistance, the surface of the fireproof plate 10 can be covered with high-temperature resistant materials such as firebricks to form a composite protective layer. The fireproof plate 10 is installed above the cable carrier 9 to block high-temperature sparks or molten slag splashed during laser cutting, preventing them from falling directly onto the cable carrier 9. During laser cutting, waste material falling from the workpiece may be hot and even contain incompletely cooled molten slag. If these hot objects fall directly onto the cable carrier 9, it may cause the plastic or rubber parts of the cable carrier 9 to melt or deform, or even ignite the internal cables, causing equipment damage or safety accidents. The fireproof plate 10, as a physical barrier, can effectively block these hot objects and protect the cable carrier 9 and its internal cables.

[0060] The technical advantage of this protective structure lies in its combination of protection for the wiring system and fire prevention requirements, thereby improving the reliability and safety of the device under harsh operating conditions. Simultaneously, the fireproof plate 10 is positioned above the cable chain 9, ensuring it does not interfere with the normal bending movement of the cable chain 9, thus achieving a balance between protection and functionality.

[0061] This embodiment provides a waste collection method using the collection device described in any of the above embodiments. The specific operation is as follows:

[0062] First, place the collecting device on the limiting guide rail 6 below the laser cutting equipment, ensuring that the limiting component 5 and the limiting guide rail 6 are properly matched. At this time, the frame 1 is completely under the equipment, and the rolling wheels 3 are in contact with the working surface 4 to bear the weight.

[0063] When waste needs to be removed, the operator drives the collection device forward along the limiting guide rail 6. When the frame 1 is at least partially moved out of the range of the laser cutting equipment, the rolling wheel 3 at the front of the frame 1 still contacts the working surface 4 to bear the weight, while the limiting member 5 installed at the rear bottom of the frame 1 still cooperates with the limiting guide rail 6 to ensure that the frame 1 moves in the predetermined direction.

[0064] After the chassis 1 is moved to the predetermined position, for example, when the waste container 2 is completely exposed outside the equipment, the operator cleans the waste from the waste container 2. During this process, the chassis 1 will not deflect or derail because the limiting member 5 always cooperates with the limiting guide rail 6.

[0065] After cleaning, the operator drives the collection device to move backward and reset. The limit component 5 guides the frame 1 accurately back under the laser cutting equipment along the limit guide rail 6, completing one waste collection cycle.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser cutting waste collection device, characterized in that, Includes a frame (1) and a waste container (2) placed on the frame (1); Multiple rollers (3) are mounted on the bottom of the frame (1), the rollers (3) are used to roll on the working surface (4) to support the frame (1). At least one limiting member (5) installed at the bottom rear end of the frame (1) is used to cooperate with the limiting guide rail (6) laid under the laser cutting equipment to limit the movement direction of the frame (1) along the limiting guide rail (6); The arrangement of the rolling wheel (3) and the limiting member (5) satisfies the following: when the frame (1) moves to the point where at least part of it moves out of the range of the laser cutting equipment, the rolling wheel (3) contacts the working surface (4) to bear the weight, while the limiting member (5) still maintains its cooperation with the limiting guide rail (6).

2. The laser cutting waste collection device according to claim 1, characterized in that, The limiting member (5) is a guide wheel, and the guide wheel is provided with an annular groove or annular flange that cooperates with the limiting guide rail (6).

3. The laser cutting waste collection device according to claim 1, characterized in that, The limiting member (5) is a sliding member used to slide with the limiting guide rail (6).

4. The laser cutting waste collection device according to claim 3, characterized in that, The sliding element is a T-shaped slide rail or a dovetail groove.

5. The laser cutting waste collection device according to claim 1, characterized in that, The multiple rolling wheels (3) located at the rear of the frame (1) are coaxially connected by a pivot (7).

6. The laser cutting waste collection device according to claim 5, characterized in that, It also includes a power system (8) for driving the device to move; the power system (8) includes a motor (81) mounted on the frame (1) and a transmission assembly (82) connecting the motor (81) to the shaft (7), the transmission assembly (82) including a drive sprocket mounted on the motor (81), a driven sprocket mounted on the shaft (7) and a chain connecting the drive sprocket and the driven sprocket.

7. The laser cutting waste collection device according to claim 1, characterized in that, The frame (1) is provided with a drag chain (9) on one side, and a fireproof plate (10) is provided on the drag chain (9).

8. The laser cutting waste collection device according to claim 1, characterized in that, It also includes load-bearing wheels (11) mounted on the frame (1), which are used to assist in supporting the frame (1).

9. The laser cutting waste collection device according to claim 1, characterized in that, The waste container (2) includes a bottom plate (21) and a side plate (22) made of refractory material, which are connected by angle steel (23).

10. A waste collection method, characterized in that, The collection device as described in any one of claims 1-9 comprises the following steps: The collecting device is placed on the limiting guide rail (6) below the laser cutting equipment, so that the limiting member (5) cooperates with the limiting guide rail (6); The collecting device is driven to move along the limiting guide rail (6), and the limiting member (5) still engages with the limiting guide rail (6) when the frame (1) is at least partially away from below the laser cutting equipment; Clean the waste from the waste container (2); Drive the collecting device to move backward and reset, so that the limiting member (5) guides the frame (1) back to the bottom of the laser cutting equipment along the limiting guide rail (6).

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