Flame cutting machine capable of automatically discharging slag for metal plates

Abstract

The invention discloses a metal plate flame cutting machine capable of automatically discharging slag, and relates to the technical field of flame cutting machines, the metal plate flame cutting machine comprises a collecting box, guide assemblies are arranged on the two sides of the top end of the collecting box, a fixing frame is in threaded connection with the outer sides of the guide assemblies, and a mounting box is arranged at the upper end of the inner side of the fixing frame; a cutting assembly is fixedly connected to the left side of the mounting box, and an automatic slag discharging mechanism used for cleaning the transverse containing frame is arranged in the fixing rod. According to the flame cutting machine capable of automatically discharging slag for the metal plate, after the metal plate is cut, a scraping plate is driven to reset through the elastic force of a spring in the automatic slag discharging mechanism, then residues left on the surface of the transverse containing frame are scraped through the attaching effect between the scraping plate and the side edge of the transverse containing frame, and automatic slag discharging is achieved; and automatic slag discharging of the flame cutting machine is achieved through mutual cooperation of a scraper, an extension rod and a fixing rod, and therefore metal slag accumulation on the surface of the transverse containing frame is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of flame cutting machines, in particular to a flame cutting machine for metal plates with self-slagging. Background Art

[0002] Flame cutting machine is a kind of equipment that uses the heat energy generated by the combustion of fuel gas (such as acetylene, propane, liquefied gas, etc.) and oxygen to cut metal materials. During cutting, the oxygen tube and acetylene tube provide the oxygen and acetylene required for combustion, and burn at the cutting gun muzzle to generate a high-temperature flame. The flame can quickly melt the metal and form a cutting groove, thereby completing the cutting; During use, since the flame cutting machine relies on molten metal to complete cutting, after cutting, a large amount of metal residue is likely to remain on the grille below the cutting machine. The remaining metal residue on the grille will cause the subsequent placement of the metal sheet to be unstable, and also affect the accuracy of subsequent cutting of the metal sheet by the flame cutting machine.

[0003] In order to overcome the above defects, the prior art (Chinese patent with announcement number CN213560447U and application date 2021-11-12) is a flame cutting machine for metal sheet processing. Through the cooperation of the fixed column, the mounting frame, the guide wheel and the slideway, the slideway can drive the flame cutting machine body to move forward and backward along a straight line so as to split the plate multiple times, and through the cooperation of the telescopic cylinder and the spring, the guide wheel can be close to the slideway, thereby effectively preventing the guide wheel from leaving the slideway, avoiding the slideway from deflecting, and greatly improving the stability during movement.

[0004] Prior art (Chinese patent with announcement number CN217193341U and application date 2022-02-14) An automatic slag discharge laser cutting machine. By setting a scraper, a limit block, a screw rod, an inclined material guide box, a transmission wheel, a transmission belt, a stepper motor, a conveyor belt and a slag discharge port, it is convenient to automatically discharge the slag from the cutting table without manual operation, and it is convenient to prevent the slag from falling on the screw rod by setting a limit block, a slide groove, a second through groove, an inclined material guide box, a fixed seat and a screw rod.

[0005] Although the above mechanism can discharge the slag from the cutting table through the slag discharge port and reduce the slag remaining on the surface of the screw, in actual use, the overall volume of the slag is large, and odor and dust are generated during cutting, which can easily cause physical harm to nearby workers. Summary of the invention

[0006] The object of the present invention is to provide a flame cutting machine for metal plates with self-slag discharge, so as to solve the problem mentioned in the above background technology that the overall volume of the slag is large and odor and dust are generated during cutting.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flame cutting machine for metal plates with self-slag discharge, comprising a collection box, guide assemblies are arranged on both sides of the top of the collection box, and a fixing frame is threadedly connected to the outer side of the guide assembly, the fixing frame is arranged at the top of the collection box, a mounting box is arranged at the upper end of the inner side of the fixing frame, and a cutting assembly is fixedly connected to the left side of the mounting box, horizontal placement frames are evenly distributed inside the collection box, and a longitudinal support frame is fixedly connected to one side between the horizontal placement frames; A fixed rod is fixedly connected to the left side of the horizontal placement rack, and an autonomous slag discharge mechanism for cleaning the horizontal placement rack is arranged inside the fixed rod, the autonomous slag discharge mechanism includes an elastic airbag, and the elastic airbag is fixedly connected to the inside of the fixed rod, an extension rod is bonded to the top of the elastic airbag, and the extension rod and the fixed rod are slidably connected, and a scraper is fixedly connected to the top of the extension rod; An air intake pipe is arranged at the middle position of the bottom end of the installation box through a pipeline, and a filtering and dust removal mechanism for processing smoke and debris is arranged inside the installation box.

[0008] Furthermore, the left side of the scraper is in contact with the left side of the horizontal placement rack, and the cross-section of the scraper is trapezoidal.

[0009] Furthermore, a storage bag is provided at the rear end of the collection box, and an angle adjustment mechanism is provided at the outer upper end of the intake pipe at the front end of the storage bag, the angle adjustment mechanism includes a gear, and the gear is fixedly connected to the outer upper end of the intake pipe, a piston rod is installed at the top of the storage bag through a hose, and the piston rod is fixed to the bottom end of the installation box through a connecting frame, and the output end of the piston rod is fixedly connected to a rack, and the left side of the rack is meshed with the gear.

[0010] Furthermore, a torsion spring is wound around the upper end of the outer side of the gear, and an elastic structure is formed between the gear and the mounting box through the torsion spring.

[0011] Furthermore, the rear end of the elastic airbag is connected to the connecting tube through a hose, and the top end of the connecting tube is connected to the storage soft bag through a hose.

[0012] Furthermore, a negative pressure fan is fixedly connected to the top of the installation box, the filtering and dust removal mechanism includes a filter, and the filter is slidably connected to the inside of the installation box, the filter is arranged below the negative pressure fan, and the filter is arranged above the intake pipe.

[0013] Furthermore, a fan blade is provided on the left side above the suction pipe, and the fan blade is rotatably connected to the inside of the installation box through a rotating rod, a threaded rod is rotatably connected to the right side below the filter, the front end of the rotating rod is connected to the threaded rod through a belt transmission mechanism, a movable block is threadedly connected to the outer side of the threaded rod, and a cleaning brush is installed on the top of the movable block through bolts, and the top of the cleaning brush is in contact with the bottom end of the filter.

[0014] Furthermore, a guide rod is rotatably connected to the other side below the filter screen inside the installation box, and the bottom end of the cleaning brush is slidably connected to the guide rod through a slider.

[0015] Furthermore, both sides of the bottom end of the filter are connected to the movable plate through springs, the front end of the installation box is rotatably connected to a cam, and the front end of the rotating rod is connected to the threaded rod wheel through a belt transmission mechanism, and the cam is arranged below the filter.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. After the metal sheet is cut, the elastic force of the spring inside the autonomous slag discharge mechanism drives the scraper to reset, and then the scraper and the side of the horizontal rack are used to scrape off the residue on the surface of the horizontal rack to achieve autonomous slag discharge. The scraper, extension rod and fixed rod cooperate with each other to achieve autonomous slag discharge of the flame cutting machine, thereby effectively reducing the accumulation of metal residue on the surface of the horizontal rack; Furthermore, the cooperation between the suction pipe and the negative pressure fan can absorb scattered metal particles, and can also absorb the smoke and odor generated during flame cutting, effectively preventing smoke and debris from remaining in the working environment. The meshing of the rack and the gear can drive the suction pipe to perform reciprocating rotation, so that the suction pipe surrounds the cutting component and absorbs smoke and debris, effectively reducing the emission of odor. Furthermore, the tooth blocks on the surface of the rack are arranged in groups, so when the rack is repeatedly pulled, it will intermittently stop meshing with the gear. When the gear is not meshing with the rack, the elastic force of the torsion spring will reset the gear angle and drive the suction pipe below to reset its angle, thereby realizing the reciprocating rotation of the suction pipe. 2. When the negative pressure fan and the suction pipe cooperate with each other to absorb smoke and debris, the wind force generated by the negative pressure fan will blow the fan blades to rotate, and the rotating rod is driven and the threaded rod is rotated through the belt transmission mechanism. The movable block is driven by the threaded rod, and the cleaning brush on the top of the movable block can clean and scrape the dust from the filter to avoid clogging of the filter; Furthermore, in order to avoid angle deviation during the movement of the movable block, the movable block is connected to the cleaning brush through a guide rod so that the angle of the movable block is limited, thereby preventing the movable block from having angle deviation during the movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the side cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the connection structure of the automatic slag discharge mechanism and the angle adjustment mechanism of the present invention; Figure 4 It is a partial enlarged structural schematic diagram of the angle adjustment mechanism of the present invention; Figure 5 It is a schematic diagram of the explosion structure of the automatic slag discharge mechanism of the present invention; Figure 6 It is a structural schematic diagram of the angle adjustment mechanism of the present invention; Figure 7 It is a front view cross-sectional structural schematic diagram of the present invention; Figure 8 It is a partial enlarged structural schematic diagram of the filtering and dust removal mechanism of the present invention; Fig. 9 It is a structural schematic diagram of the filtering and dust removal mechanism of the present invention.

[0018] In the figure: 1. collecting box; 2. guide assembly; 3. fixing frame; 4. mounting box; 5. cutting assembly; 6. horizontal placement frame; 7. longitudinal support frame; 8. fixing rod; 9. elastic air bag; 10. extension rod; 11. scraper; 12. connecting pipe; 13. storage soft bag; 14. piston rod; 15. rack; 16. gear; 17. torsion spring; 18. suction pipe; 19. negative pressure fan; 20. filter; 21. fan blade; 22. rotating rod; 23. cam; 24. movable plate; 25. threaded rod; 26. movable block; 27. cleaning brush; 28. guide rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0020] like Figure 1-Figure 3 and Figure 5The technical solution shown in the figure is to solve the problem that the overall volume of the slag is large and there will be odor and dust generated during cutting: the flame cutting machine for metal plates with self-slag discharge discloses an automatic slag discharge mechanism, including a collecting box 1, both sides of the top of the collecting box 1 are provided with guide components 2, and the outer side of the guide component 2 is threadedly connected with a fixing frame 3, the fixing frame 3 is arranged at the top of the collecting box 1, the upper end of the inner side of the fixing frame 3 is provided with an installation box 4, and the left side of the installation box 4 is fixedly connected with a cutting component 5, and the interior of the collecting box 1 is evenly spaced with horizontal placement frames 6, and the horizontal placement frames 6 are arranged on the inner side of the collecting box 1. A longitudinal support frame 7 is fixedly connected to one side between the racks 6, a fixing rod 8 is fixedly connected to the left side of the transverse rack 6, and an autonomous slag discharge mechanism for cleaning the transverse rack 6 is arranged inside the fixing rod 8, the autonomous slag discharge mechanism comprises an elastic airbag 9, and the elastic airbag 9 is fixedly connected to the inside of the fixing rod 8, an extension rod 10 is bonded to the top end of the elastic airbag 9, and the extension rod 10 and the fixing rod 8 are slidably connected, a scraper 11 is fixedly connected to the top end of the extension rod 10, the left side of the scraper 11 is in contact with the left side of the transverse rack 6, and the cross-section of the scraper 11 is trapezoidal.

[0021] In this example, the metal sheet is placed above the horizontal placement rack 6, and the horizontal placement rack 6 is used to support the metal sheet. After the metal sheet is placed, pressure is applied to the scraper 11, so that the extension rod 10 below the scraper 11 moves to the inside of the fixed rod 8, and at the same time, the elastic air bag 9 inside the fixed rod 8 is stressed and squeezes the gas out to the inside of the storage soft bag 13, and the storage soft bag 13 is used to store the gas. Then, the cutting assembly 5 can be controlled to move forward, backward, left and right through the cooperation between the guide assembly 2 and the fixed frame 3, so that the installation box 4 can cut the metal sheet placed above the horizontal placement rack 6; After cutting, the cut metal workpiece is separated from the metal plate and falls off. After the cut metal workpiece is taken out, the pressure on the scraper 11 above the horizontal placement frame 6 where there is no metal workpiece will be reduced. The spring inside the extension rod 10 will be reset by elastic force after losing the extrusion and drive the scraper 11 to push upward. The scraper 11 fits against the side of the horizontal placement frame 6, so that the scraper 11 can scrape off the metal residue remaining on the top of the horizontal placement frame 6. The scraper 11, the extension rod 10 and the fixed rod 8 cooperate with each other to realize the autonomous slag discharge of the flame cutting machine, thereby effectively reducing the accumulation of metal residue on the surface of the horizontal placement frame 6. Example

[0022] like Figure 1-Figure 4 and Figure 6The technical solution shown is to solve the problem of debris and smoke generated by the flame cutting machine when it is working: the flame cutting machine for metal plates with self-slag discharge discloses an angle adjustment mechanism, a storage bag 13 is provided at the rear end of the collecting box 1, and an angle adjustment mechanism is provided at the outer upper end of the suction pipe 18 at the front end of the storage bag 13, the angle adjustment mechanism includes a gear 16, and the gear 16 is fixedly connected to the outer upper end of the suction pipe 18, a piston rod 14 is installed at the top of the storage bag 13 through a hose, and the piston rod 14 is fixed to the bottom end of the installation box 4 through a connecting frame, a rack 15 is fixedly connected to the output end of the piston rod 14, and the left side of the rack 15 is meshed with the gear 16, a torsion spring 17 is wound around the upper end of the outer side of the gear 16, and an elastic structure is formed between the gear 16 and the installation box 4 through the torsion spring 17, the rear end of the elastic airbag 9 is connected to the connecting pipe 12 through a hose, and the top of the connecting pipe 12 is connected to the storage bag 13 through a hose.

[0023] In this example, during the cutting process, since flame cutting relies on melting the metal sheet to achieve cutting, the solidified metal fine particles will be scattered around during cutting. The cooperation between the suction pipe 18 and the negative pressure fan 19 can absorb the scattered metal particles, and at the same time, the smoke and odor generated during flame cutting can be absorbed, effectively preventing smoke and debris from remaining in the working environment. After the metal sheet is processed and the slag is removed by the autonomous slag removal mechanism, the scraper 11 removes the slag from the surface of the horizontal placement rack 6, which will cause some debris particles to be lifted up. Therefore, at this time, the angle adjustment mechanism is used to control the suction pipe 18 to reciprocate, which can better clean the lifted debris particles; When the scraper 11 is pressed by the metal plate, the gas inside the elastic airbag 9 is discharged into the storage bag 13. Part of the gas that cannot be stored is transported to the inside of the piston rod 14 through the hose and pushes out the rack 15, so that the angle of the gear 16 changes. Therefore, when the scraper 11 is reset, the gas inside the storage bag 13 is also transported back to the inside of the elastic airbag 9 through the hose. Due to the pumping flow of the gas, the output end of the piston rod 14 is pulled and moved in the opposite direction, so that one side of the rack 15 is meshed with the gear 16 and drives the gear 16 to rotate. Since the tooth blocks on the surface of the rack 15 are arranged in groups and gaps are intermittently provided, when the rack 15 and the gear 16 are not in a meshing state, the gear 16 is rotated and reset by the elastic force of the torsion spring 17, so that the suction pipe 18 under the gear 16 can reciprocate around the cutting assembly 5, so that the smoke around the cutting assembly 5 can be adsorbed and processed, effectively reducing the residue of smoke and debris. Example

[0024] like Figure 1-Figure 3 and Figure 7-Figure 9The technical solution shown is to solve the problem that debris may damage the negative pressure fan 19 when adsorbing smoke and debris: the flame cutting machine for metal plates with independent slag discharge discloses a filtering dust removal mechanism, an air intake pipe 18 is arranged at the middle position of the bottom end of the installation box 4 through a pipeline, and a filtering dust removal mechanism for treating smoke and debris is arranged inside the installation box 4, the top of the interior of the installation box 4 is fixedly connected to the negative pressure fan 19, the filtering dust removal mechanism includes a filter screen 20, and the filter screen 20 is slidably connected to the interior of the installation box 4, the filter screen 20 is arranged below the negative pressure fan 19, and the filter screen 20 is arranged above the suction pipe 18, a fan blade 21 is arranged on the left side above the suction pipe 18, and the fan blade 21 is rotatably connected to the rotating rod 22. Inside the installation box 4, a threaded rod 25 is rotatably connected to the right side below the filter 20, and the front end of the rotating rod 22 is connected to the threaded rod 25 through a belt transmission mechanism. A movable block 26 is threadedly connected to the outer side of the threaded rod 25, and a cleaning brush 27 is installed on the top of the movable block 26 through a bolt, and the top of the cleaning brush 27 is fitted with the bottom end of the filter 20, and a guide rod 28 is rotatably connected to the other side below the filter 20 inside the installation box 4, and the bottom end of the cleaning brush 27 is slidably connected to the guide rod 28 through a slider, and the two sides of the bottom end of the filter 20 are connected to the movable plate 24 through springs, and a cam 23 is rotatably connected to the front end of the inside of the installation box 4, and the front end of the rotating rod 22 is connected to the threaded rod wheel 23 through a belt transmission mechanism, and the cam 23 is arranged below the filter 20.

[0025] In this example, in order to extend the service life of the negative pressure fan 19 and reduce the residual smoke when the debris and smoke are being processed, the filter 20 can block the debris and adsorb the smoke at the same time, so that the debris blocking process and the smoke adsorption process can be better achieved; When the negative pressure fan 19 and the suction pipe 18 cooperate with each other to adsorb smoke and debris, the wind force generated by the negative pressure fan 19 will blow the fan blades 21 to rotate, so that the fan blades 21 and the rotating rod 22 rotate. When the rotating rod 22 rotates, it can drive the threaded rod 25 to rotate through the belt transmission mechanism. When the threaded rod 25 rotates, it meshes with the outer movable block 26 and drives the movable block 26 to reset its position. The movable block 26 can drive the cleaning brush 27 at the top to scrape and move under the filter 20, so that the dust on the surface of the filter 20 can be scraped off, avoiding the filter 20 from being blocked by dust when used for a long time. In the process of being driven to rotate, the rotating rod 22 can drive the cam 23 to rotate through the belt transmission mechanism. The cam 23 can continuously squeeze the filter 20 during the rotation. Since the filter 20 is connected to the movable plate 24 through a spring, when the cam 23 squeezes and pushes the filter 20, the filter 20 continuously swings up and down inside the installation box 4. The forward and backward sliding of the cleaning brush 27 and the up and down swinging of the filter 20 cooperate with each other to effectively reduce the accumulation of debris on the surface of the filter 20.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame cutting machine for metal plates with self-slag discharge, comprising a collecting box (1), guide assemblies (2) are arranged on both sides of the top of the collecting box (1), and a fixing frame (3) is threadedly connected to the outer side of the guide assembly (2), the fixing frame (3) is arranged at the top of the collecting box (1), a mounting box (4) is arranged at the upper end of the inner side of the fixing frame (3), and a cutting assembly (5) is fixedly connected to the left side of the mounting box (4), and transverse placement frames (6) are evenly spaced inside the collecting box (1), and a longitudinal support frame (7) is fixedly connected to one side between the transverse placement frames (6); Features: The left side of the transverse placement rack (6) is fixedly connected to a fixed rod (8), and an autonomous slag discharge mechanism for cleaning the transverse placement rack (6) is arranged inside the fixed rod (8), the autonomous slag discharge mechanism comprises an elastic airbag (9), and the elastic airbag (9) is fixedly connected to the inside of the fixed rod (8), an extension rod (10) is bonded to the top end of the elastic airbag (9), and the extension rod (10) and the fixed rod (8) are slidably connected, and a scraper (11) is fixedly connected to the top end of the extension rod (10); An air intake pipe (18) is provided at a middle position at the bottom end of the installation box (4) through a pipeline, and a filtering and dust removal mechanism for processing smoke and debris is provided inside the installation box (4).

2. The flame cutting machine for metal plates with self-slagging according to claim 1, characterized in that: The left side of the scraper (11) is in contact with the left side of the horizontal placement rack (6), and the cross section of the scraper (11) is trapezoidal.

3. The flame cutting machine for metal plates with self-slagging according to claim 1, characterized in that: A storage bag (13) is provided at the rear end of the collection box (1), and an angle adjustment mechanism is provided at the outer upper end of the suction pipe (18) at the front end of the storage bag (13), the angle adjustment mechanism comprising a gear (16), and the gear (16) is fixedly connected to the outer upper end of the suction pipe (18), the top end of the storage bag (13) is equipped with a piston rod (14) through a hose, and the piston rod (14) is fixed to the bottom end of the installation box (4) through a connecting frame, the output end of the piston rod (14) is fixedly connected to a rack (15), and the left side of the rack (15) is meshed with the gear (16).

4. The flame cutting machine for metal plates with self-slagging according to claim 3, characterized in that: A torsion spring (17) is wound around the upper end of the outer side of the gear (16), and an elastic structure is formed between the gear (16) and the mounting box (4) through the torsion spring (17).

5. The flame cutting machine for metal plates with self-slagging according to claim 4, characterized in that: The rear end of the elastic airbag (9) is connected to the connecting pipe (12) via a hose, and the top end of the connecting pipe (12) is connected to the storage soft bag (13) via a hose.

6. The flame cutting machine for metal plates with self-slagging according to claim 1, characterized in that: A negative pressure fan (19) is fixedly connected to the top of the installation box (4), the filtering and dust removal mechanism comprises a filter screen (20), and the filter screen (20) is slidably connected to the inside of the installation box (4), the filter screen (20) is arranged below the negative pressure fan (19), and the filter screen (20) is arranged above the suction pipe (18).

7. The flame cutting machine for metal plates with self-slagging according to claim 6, characterized in that: A fan blade (21) is arranged on the left side above the air intake pipe (18), and the fan blade (21) is rotatably connected to the inside of the installation box (4) via a rotating rod (22). A threaded rod (25) is rotatably connected to the right side below the filter (20), and the front end of the rotating rod (22) is connected to the threaded rod (25) via a belt transmission mechanism. A movable block (26) is threadedly connected to the outer side of the threaded rod (25), and a cleaning brush (27) is installed at the top end of the movable block (26) via bolts, and the top end of the cleaning brush (27) is in contact with the bottom end of the filter (20).

8. The flame cutting machine for metal plates with self-slagging according to claim 7, characterized in that: A guide rod (28) is rotatably connected to the other side below the filter screen (20) inside the installation box (4), and the bottom end of the cleaning brush (27) is slidably connected to the guide rod (28) via a slider.

9. The flame cutting machine for metal plates with self-slagging according to claim 8, characterized in that: Both sides of the bottom end of the filter screen (20) are connected to a movable plate (24) via a spring, the front end of the interior of the installation box (4) is rotatably connected to a cam (23), and the front end of the rotating rod (22) is connected to a threaded rod wheel (23) via a belt transmission mechanism, and the cam (23) is arranged below the filter screen (20).

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