Laser cutting device for waste metal processing

Abstract

The invention discloses a laser cutting device for waste metal processing, and relates to the technical field of recycling equipment. The device comprises a machining table, supporting columns are installed at the top of the machining table, a top plate is installed at the tops of the supporting columns, and a laser head is arranged at the bottom of the top plate; an adsorption assembly is arranged at the top of the machining table and comprises an air suction pipe installed in the supporting column and an exhaust pipe communicating with the top of the air suction pipe. Through the synergistic effect of an air suction pipe, an exhaust pipe, a metal filter screen and an exhaust fan of the adsorption assembly, smoke generated by laser cutting can be efficiently sucked and filtered, the metal filter screen intercepts large-particle dust, an activated carbon filter screen adsorbs harmful gas, the machining environment is remarkably improved, and the health of operators is protected; a connecting pipe, an air suction pipe, a supporting sleeve, a cleaning rod and cleaning cloth of the cleaning assembly drive driven fan blades to drive the cleaning cloth to rotate through airflow, dust on the mirror face of the laser head is automatically removed, optical pollution is avoided, cutting precision is improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of recycling equipment, and in particular relates to a laser cutting device for processing scrap metal. Background Art

[0002] Laser cutting of scrap metal processing is an efficient and precise modern process. This technology uses a high-energy laser beam to focus on the surface of scrap metal materials, melts or vaporizes the material at instantaneous high temperature, and uses auxiliary gas to blow away the slag to achieve contactless cutting. Its advantages are smooth incisions and small heat-affected zones. It can handle complex and special-shaped parts and can adapt to the recycling needs of various metals (such as steel, aluminum, copper, etc.). Compared with traditional mechanical cutting, laser cutting efficiency is increased by more than 50%, energy consumption is lower, and there is no tool wear. It is particularly suitable for the refined sorting and remanufacturing of small and medium-sized batches of high-precision scrap metals, contributing to the development of the circular economy.

[0003] A Chinese patent application with publication number CN221715905U discloses a laser cutting device for metal processing, including a workbench, a placement plate provided inside the workbench, a plurality of protrusions fixedly connected to the outer wall of the placement plate, a plurality of flow holes opened on the outer wall of the placement plate on one side of the protrusion, and the flow holes and the protrusions are alternately distributed, a plurality of support plates are provided on the lower surface of the workbench, the outer walls of the support plates are fixedly connected to filter bins, and the inner walls of the filter bins are fixedly connected to brackets, which solves the problem that when current laser cutting devices process some special metal materials, a large amount of dust and a small amount of harmful gases are generated, which are suspended in the air and inhaled by operators, causing personal injury to the operators.

[0004] However, the above device still has the following problems during implementation:

[0005] During the laser cutting of scrap metal, although the exhaust fan can drive the air flow and intercept most of the dust through the filter element, some fine particles still diffuse upward in irregular trajectories due to the sputtering of high-energy lasers. These high-temperature dusts easily adhere to the optical mirror at the bottom of the laser device, causing mirror contamination or micro-damage, affecting the stability of the optical path, and even reducing cutting accuracy and equipment life.

[0006] To this end, we provide a laser cutting device for scrap metal processing to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a laser cutting device for scrap metal processing. Through the cooperation of an adsorption component, a cleaning component and a sweeping component, the problem of the existing scrap metal laser cutting processing equipment in the art that the sputtered dust easily adheres to the optical mirror surface during processing, thereby affecting the normal use of the laser equipment.

[0008] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0009] The present invention is a laser cutting device for processing scrap metal, comprising a processing table, a pillar mounted on the top of the processing table, a top plate mounted on the top of the pillar, and a laser head disposed at the bottom of the top plate; an adsorption assembly disposed on the top of the processing table, the adsorption assembly comprising an air suction pipe mounted inside the pillar, an exhaust pipe connected to the top of the air suction pipe, a metal filter mounted inside the exhaust pipe, and an exhaust fan disposed on one side of the metal filter, wherein smoke and dust generated during laser cutting are filtered through the adsorption assembly; a cleaning assembly disposed at the bottom of the top plate, the cleaning assembly comprising a connecting pipe mounted on one side of the laser head, an air suction pipe connected to the bottom of the connecting pipe, a support sleeve movably connected to the surface of the air suction pipe, a cleaning rod mounted on one side of the support sleeve, and a cleaning cloth mounted on the surface of the cleaning rod, wherein the mirror surface of the laser head is cleaned through the cleaning assembly; a cleaning assembly disposed on the top of the processing table, the cleaning assembly comprising a rotating rod movably connected to the top of the processing table, a gear and a scraper mounted on the surface of the rotating rod, and a toothed plate meshed with one side of the gear, wherein debris on the top of the processing table is cleaned through the cleaning assembly.

[0010] The present invention is further configured such that a driving assembly is provided inside the top plate, and the driving assembly includes a driving motor installed inside the top plate, a screw installed at the output end of the driving motor, and a movable sleeve threadedly connected to the surface of the screw, and the processing position of the laser head is adjusted by the driving assembly.

[0011] The present invention is further configured such that the cleaning assembly also includes a collecting pipe movably connected to the bottom of the support sleeve, a rotating shaft arranged inside the suction pipe, a driven fan blade installed on the surface of the rotating shaft, and a connecting rod fixedly connected to the surface of the rotating shaft, the other end of the connecting rod being fixedly connected to the inner wall of the support sleeve.

[0012] The present invention is further configured such that an air inlet is opened on one side of the connecting pipe, a sealing shell is slidably connected to the inside of the suction pipe, a cross bar is installed inside the sealing shell, a first spring is sleeved on the surface of the cross bar, the other end of the cross bar passes through the suction pipe and is fixedly connected to a limiting block, and the cross bar is slidably connected to the inner wall of the connecting pipe.

[0013] The present invention is further configured such that the cleaning assembly also includes a movable frame installed on one side of the tooth plate, a push plate installed on one side of the movable frame, a second spring sleeved on the surface of the movable frame, and one end of the second spring is fixedly connected to the push plate.

[0014] The present invention is further configured such that the other end of the movable frame passes through the outside of the pillar, the surface of the tooth plate is slidably connected to a support block, and the bottom of the support block is fixedly connected to the processing table.

[0015] The present invention is further configured such that the bottom of the support sleeve passes through the top plate and is fixedly connected to the laser head, and the top of the support sleeve is fixedly connected to a slider, which is slidably connected to the inner wall of the top plate.

[0016] The present invention is further configured such that a connecting frame is fixedly connected to one side of the collecting pipe, the other end of the connecting frame is fixedly connected to the connecting pipe, and the connecting frame is horizontally aligned with the push plate.

[0017] The present invention is further configured such that a support shell is threadedly connected to the surface of the exhaust pipe, an activated carbon filter is installed inside the support shell, and the exhaust fan is arranged between the activated carbon filter and the metal filter.

[0018] The present invention is further configured such that a blocking rod is fixedly connected to one side of the intake pipe, a clockwork spring is fixedly connected to the surface of the support sleeve, and the other end of the clockwork spring is fixedly connected to the intake pipe.

[0019] The present invention has the following beneficial effects.

[0020] 1. The present invention can efficiently suck and filter the smoke and dust generated by laser cutting through the synergistic effect of the suction pipe, exhaust pipe, metal filter and exhaust fan of the adsorption component. The metal filter intercepts large particles of dust, and the activated carbon filter absorbs harmful gases, which significantly improves the processing environment and protects the health of operators. The connecting pipe, suction pipe, support sleeve, cleaning rod and cleaning cloth of the cleaning component drive the driven fan blades through the airflow to drive the cleaning cloth to rotate, automatically removing dust on the laser head mirror, avoiding optical pollution, and improving cutting accuracy and equipment life.

[0021] 2. The present invention realizes automatic cleaning of debris on the surface of the processing table through meshing transmission of the rotating rod, gear, scraper and tooth plate of the cleaning component, and cooperates with the second spring reset function of the movable frame and the push plate to ensure timely cleaning of debris and prevent accumulation affecting the processing quality. The driving motor, screw and movable sleeve of the driving component can accurately adjust the processing position of the laser head and improve the cutting flexibility. The sealing shell, cross bar and first spring cooperate to realize dynamic sealing of the suction pipe, optimize the airflow channel control, and further improve the smoke and dust filtration efficiency.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0024] Figure 1 A three-dimensional diagram of a laser cutting device for processing scrap metal.

[0025] Figure 2A cross-sectional view of a support in a laser cutting device for processing scrap metal.

[0026] Figure 3 This is a schematic diagram of the connection between the gear and the tooth plate in a laser cutting device for scrap metal processing.

[0027] Figure 4 A cross-sectional view of an exhaust duct in a laser cutting device for scrap metal processing.

[0028] Figure 5 A cross-sectional view of a top plate in a laser cutting device for scrap metal processing.

[0029] Figure 6 This is a bottom view of the surface structure of a laser head in a laser cutting device for scrap metal processing.

[0030] Figure 7 A laser cutting device for scrap metal processing Figure 6 rear view.

[0031] Figure 8 A cross-sectional view of a connecting pipe and an air intake pipe in a laser cutting device for processing scrap metal.

[0032] Figure 9 A partial cross-sectional view of an air suction pipe in a laser cutting device for processing scrap metal.

[0033] Figure 10 This is a schematic diagram of a connecting pipe inserted into a suction pipe in a laser cutting device for scrap metal processing.

[0034] In the accompanying drawings: 1. Processing table; 2. Support column; 3. Top plate; 4. Laser head; 5. Adsorption assembly; 501. Suction pipe; 502. Exhaust pipe; 503. Metal filter; 504. Exhaust fan; 6. Cleaning assembly; 601. Connecting pipe; 602. Suction pipe; 603. Support sleeve; 604. Cleaning rod; 605. Cleaning cloth; 7. Cleaning assembly; 701. Rotating rod; 702. Gear; 703. Scraper; 704. Tooth plate; 8. Driving assembly; 801. Driving motor; 802. Screw; 803. Moving sleeve; 606. Collecting tube; 607. Rotating shaft; 608. Driven fan blade; 609. Connecting rod; 9. Air inlet; 10. Sealing shell; 11. Cross bar; 12. First spring; 705. Moving frame; 706. Push plate; 707. Second spring; 13. Support block; 14. Connecting frame; 15. Support shell; 16. Stop rod; 17. Spring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Example 1

[0037] See also Figures 1-10 The present invention is a laser cutting device for scrap metal processing, comprising a processing table 1, a support 2 is mounted on the top of the processing table 1, a top plate 3 is mounted on the top of the support 2, and a laser head 4 is arranged at the bottom of the top plate 3; an adsorption component 5 is arranged on the top of the processing table 1, the adsorption component 5 comprises a suction pipe 501 mounted inside the support 2, an exhaust pipe 502 connected to the top of the suction pipe 501, a metal filter 503 mounted inside the exhaust pipe 502, and an exhaust fan 504 arranged on one side of the metal filter 503, and the smoke generated during laser cutting is filtered through the adsorption component 5; a cleaning component 6 is arranged at the bottom of the top plate 3, and the cleaning component 6 comprises a suction pipe 501 mounted on the inside of the support 2, an exhaust pipe 502 connected to the top of the suction pipe 501, a metal filter 503 mounted on the inside of the exhaust pipe 502, and an exhaust fan 504 arranged on one side of the metal filter 503. A connecting tube 601 on one side of the laser head 4 is connected to an air intake pipe 602 at the bottom of the connecting tube 601, a support sleeve 603 movably connected to the surface of the air intake pipe 602, a cleaning rod 604 installed on one side of the support sleeve 603, and a cleaning cloth 605 installed on the surface of the cleaning rod 604. The mirror surface of the laser head 4 is cleaned through the cleaning assembly 6; a cleaning assembly 7 is provided on the top of the processing table 1. The cleaning assembly 7 includes a rotating rod 701 movably connected to the top of the processing table 1, a gear 702 and a scraper 703 installed on the surface of the rotating rod 701, and a tooth plate 704 meshed with the gear 702. The debris on the top of the processing table 1 is cleaned through the cleaning assembly 7.

[0038] Specifically: the laser head 4 can emit a high-energy laser beam to cut scrap metal, which is an existing mature technology application. The suction pipe 501 is connected to the exhaust pipe 502 to form an air flow channel to suck the smoke and dust generated during the processing. The metal filter 503 can filter large particles of dust to prevent it from entering the exhaust fan 504. The exhaust fan 504 can generate negative pressure to extract smoke and dust to ensure the cleanliness of the processing environment. The connecting pipe 601 connects the suction pipe 602 and the top plate 3 to form an air flow channel. The suction pipe 602 guides the airflow to suck in the dust on the surface of the laser head 4.

[0039] Example 2

[0040] See also Figures 1-10On the basis of Example 1, a driving assembly 8 is provided inside the top plate 3, and the driving assembly 8 includes a driving motor 801 installed inside the top plate 3, a screw 802 installed at the output end of the driving motor 801, and a movable sleeve 803 threadedly connected to the surface of the screw 802. The processing position of the laser head 4 is adjusted by the driving assembly 8, and the cleaning assembly 6 also includes a collecting pipe 606 movably connected to the bottom of the supporting sleeve 603, a rotating shaft 607 provided inside the suction pipe 602, a driven fan blade 608 installed on the surface of the rotating shaft 607, a connecting rod 609 fixedly connected to the surface of the rotating shaft 607, and the other end of the connecting rod 609 It is fixedly connected to the inner wall of the support sleeve 603, an air inlet 9 is opened on one side of the connecting pipe 601, and a sealing shell 10 is slidably connected to the inside of the suction pipe 501. A cross bar 11 is installed inside the sealing shell 10, and a first spring 12 is sleeved on the surface of the cross bar 11. The other end of the cross bar 11 passes through the suction pipe 501 and is fixedly connected to the limiting block. The cross bar 11 is slidably connected to the inner wall of the connecting pipe 601. The cleaning component 7 also includes a movable frame 705 installed on one side of the tooth plate 704, a push plate 706 installed on one side of the movable frame 705, and a second spring 707 sleeved on the surface of the movable frame 705. One end of the second spring 707 is fixedly connected to the push plate 706.

[0041] Specifically: the cleaning rod 604 is used to install the cleaning cloth 605, which directly contacts the surface of the laser head 4 for cleaning. The cleaning cloth 605 is sleeved on the surface of the cleaning rod 604 and is used to wipe the surface of the laser head 4 to remove dust and stains. It needs to be manually replaced after two or three uses. The collection tube 606 is used to collect the dust under cleaning to prevent secondary pollution. The cross bar 11 connects the sealing shell 10 and the first spring 12 to realize the movement of the sealing shell 10, ensuring that the sealing shell 10 can move under the action of airflow, thereby realizing the sealing and opening of the suction tube 501.

[0042] Example 3

[0043] See also Figures 1-10 On the basis of Examples 1 and 2, the other end of the movable frame 705 passes through the outside of the pillar 2, the surface of the tooth plate 704 is slidably connected to the support block 13, the bottom of the support block 13 is fixedly connected to the processing table 1, the bottom of the support sleeve 603 passes through the top plate 3 and is fixedly connected to the laser head 4, the top of the support sleeve 603 is fixedly connected to a slider, the slider is slidably connected to the inner wall of the top plate 3, one side of the collection pipe 606 is fixedly connected to the connecting frame 14, the other end of the connecting frame 14 is fixedly connected to the connecting pipe 601, the connecting frame 14 and the push plate 706 are kept horizontally aligned, the surface of the exhaust pipe 502 is threadedly connected to the support shell 15, the inside of the support shell 15 is installed with an activated carbon filter, the exhaust fan 504 is arranged between the activated carbon filter and the metal filter 503, one side of the intake pipe 602 is fixedly connected to a baffle 16, the surface of the support sleeve 603 is fixedly connected to a spring spring 17, and the other end of the spring spring 17 is fixedly connected to the intake pipe 602.

[0044] Specifically: the rotating rod 701 is installed with the gear 702 and the scraper 703 to realize the rotational motion. The gear 702 is engaged with the tooth plate 704 to transmit power and drive the scraper 703 to rotate. The scraper 703 cleans the debris on the surface of the processing table 1 to keep the workbench clean. The second spring 707 provides elastic force to ensure the reset of the push plate 706, which can automatically clean the debris on the surface of the processing table 1 to prevent the accumulation of debris from affecting the processing accuracy. The drive motor 801 provides power to drive the screw 802 to rotate. The screw 802 is threadedly connected to the movable sleeve 803 to drive the movable sleeve 803 to move. The movable sleeve 803 is connected to the laser head 4 to drive the laser head 4 to move and adjust the processing position. The clockwork spring 17 provides elastic force to ensure that the cleaning rod 604 is reset when there is no power.

[0045] The working principle of the present invention is as follows: the staff starts the laser head 4 through the external controller to process the workpiece on the top of the processing table 1. When waste chips and dust are generated during the processing, the exhaust fan 504 can be started. The exhaust fan 504 draws in the air generated during the processing through the suction pipe 501. When the exhausted air enters the exhaust pipe 502, large particles of dust are filtered through the metal filter 503, and harmful gases in the air are adsorbed and filtered through the activated carbon filter.

[0046] When the surface of the laser head 4 is blocked by dust, the drive motor 801 can be started, and the drive motor 801 cooperates with the screw 802 to drive the movable sleeve 803 to move. The movable sleeve 803 drives the laser head 4 to move to adjust the cutting range of the workpiece, and can also drive the laser head 4 to clean. The specific operation process is to continue to drive the laser head 4 to move to the left. When the laser head 4 moves, it drives the connecting pipe 601 and the suction pipe 602 to move synchronously. When the connecting pipe 601 contacts the sealing shell 10, it can push the sealing shell 10 to move. When the sealing shell 10 moves, it seals the bottom of the suction pipe 501. When the connecting pipe 601 is inserted into the suction pipe 501, the air inlet 9 at the top of the suction pipe 501 can be connected to the suction pipe 501, such as Figure 9 and Figure 10 As shown, the exhaust fan 504 is started at this time, and the wind pressure generated by the exhaust fan 504 will drive the air flow inside the connecting pipe 601 and the suction pipe 602. The flowing air can push the driven fan blade 608 to rotate, and the driven fan blade 608 cooperates with the rotating shaft 607 to drive the connecting rod 609 to rotate, and the connecting rod 609 cooperates with the support sleeve 603 to drive the cleaning rod 604 to rotate, and the cleaning rod 604 drives the cleaning cloth 605 to rotate, and cleans the debris at the bottom of the laser head 4. At the same time, the cleaned debris is sucked in through the collection pipe 606, and the dust is adsorbed and filtered again through the metal filter 503 and the activated carbon filter, which can improve the cleaning effect of the laser head 4.

[0047] When the connecting tube 601 moves, it can drive the connecting frame 14 to move. The connecting frame 14 pushes the push plate 706 to move. The push plate 706 cooperates with the moving frame 705 to drive the tooth plate 704 to move. The tooth plate 704 cooperates with the gear 702 to drive the scraper 703 to rotate, cleaning the debris on the surface of the processing table 1, which can further improve the cleaning effect.

[0048] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A laser cutting device for processing scrap metal, comprising a processing table (1), characterized in that: A pillar (2) is installed on the top of the processing table (1), a top plate (3) is installed on the top of the pillar (2), and a laser head (4) is provided at the bottom of the top plate (3); An adsorption assembly (5) is provided on the top of the processing table (1), and the adsorption assembly (5) comprises a suction pipe (501) installed inside the support (2), an exhaust pipe (502) connected to the top of the suction pipe (501), a metal filter (503) installed inside the exhaust pipe (502), and an exhaust fan (504) provided on one side of the metal filter (503), and filters smoke generated during laser cutting through the adsorption assembly (5); A cleaning assembly (6) is provided at the bottom of the top plate (3), and the cleaning assembly (6) comprises a connecting pipe (601) installed on one side of the laser head (4), an air suction pipe (602) connected to the bottom of the connecting pipe (601), a support sleeve (603) movably connected to the surface of the air suction pipe (602), a cleaning rod (604) installed on one side of the support sleeve (603), and a cleaning cloth (605) installed on the surface of the cleaning rod (604). The mirror surface of the laser head (4) is cleaned by the cleaning assembly (6); A cleaning assembly (7) is provided on the top of the processing table (1), and the cleaning assembly (7) comprises a rotating rod (701) movably connected to the top of the processing table (1), a gear (702) and a scraper (703) mounted on the surface of the rotating rod (701), and a toothed plate (704) meshed with one side of the gear (702). The cleaning assembly (7) cleans debris on the top of the processing table (1).

2. The laser cutting device for scrap metal processing according to claim 1, characterized in that: A driving assembly (8) is provided inside the top plate (3), and the driving assembly (8) comprises a driving motor (801) installed inside the top plate (3), a screw (802) installed at the output end of the driving motor (801), and a movable sleeve (803) threadedly connected to the surface of the screw (802). The processing position of the laser head (4) is adjusted through the driving assembly (8).

3. The laser cutting device for scrap metal processing according to claim 1, characterized in that: The cleaning assembly (6) further comprises a collecting pipe (606) movably connected to the bottom of the support sleeve (603), a rotating shaft (607) arranged inside the suction pipe (602), a driven fan blade (608) mounted on the surface of the rotating shaft (607), and a connecting rod (609) fixedly connected to the surface of the rotating shaft (607), wherein the other end of the connecting rod (609) is fixedly connected to the inner wall of the support sleeve (603).

4. The laser cutting device for scrap metal processing according to claim 1, characterized in that: An air inlet (9) is provided on one side of the connecting pipe (601), a sealing shell (10) is slidably connected inside the air suction pipe (501), a cross bar (11) is installed inside the sealing shell (10), a first spring (12) is sleeved on the surface of the cross bar (11), the other end of the cross bar (11) passes through the air suction pipe (501) and is fixedly connected to a limiting block, and the cross bar (11) is slidably connected to the inner wall of the connecting pipe (601).

5. The laser cutting device for scrap metal processing according to claim 1, characterized in that: The cleaning assembly (7) further comprises a movable frame (705) mounted on one side of the tooth plate (704), a push plate (706) mounted on one side of the movable frame (705), and a second spring (707) sleeved on the surface of the movable frame (705), wherein one end of the second spring (707) is fixedly connected to the push plate (706).

6. The laser cutting device for scrap metal processing according to claim 5, characterized in that: The other end of the movable frame (705) extends through the outside of the pillar (2), and the surface of the tooth plate (704) is slidably connected to a support block (13), and the bottom of the support block (13) is fixedly connected to the processing table (1).

7. The laser cutting device for scrap metal processing according to claim 1, characterized in that: The bottom of the support sleeve (603) passes through the top plate (3) and is fixedly connected to the laser head (4); the top of the support sleeve (603) is fixedly connected to a slider, which is slidably connected to the inner wall of the top plate (3).

8. The laser cutting device for scrap metal processing according to claim 3, characterized in that: One side of the collecting pipe (606) is fixedly connected to a connecting frame (14), and the other end of the connecting frame (14) is fixedly connected to the connecting pipe (601), and the connecting frame (14) and the push plate (706) are kept horizontally aligned.

9. The laser cutting device for scrap metal processing according to claim 1, characterized in that: The exhaust pipe (502) is threadedly connected to a support shell (15), an activated carbon filter is installed inside the support shell (15), and the exhaust fan (504) is arranged between the activated carbon filter and the metal filter (503).

10. The laser cutting device for scrap metal processing according to claim 1, characterized in that: A blocking rod (16) is fixedly connected to one side of the air intake pipe (602), a spring spring (17) is fixedly connected to the surface of the support sleeve (603), and the other end of the spring spring (17) is fixedly connected to the air intake pipe (602).

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