Deslagging device of plasma cutting platform

Abstract

The invention discloses a deslagging device of a plasma cutting platform. The slag removal device of the plasma cutting platform comprises a lifting plate located under a portal frame cross beam, the top face of the lifting plate is movably connected with a portal frame through a lifting mechanism, a plurality of scrapers used for removing slag are arranged on the bottom face of the lifting plate, and check blocks fixedly connected with the lifting plate are arranged on the two sides, in the walking direction of the portal frame, of the scrapers. A plurality of springs are arranged between the check block and the scraper, one end of each spring is attached to the scraper, and the other end of each spring is attached to the check block and is in a pressed state. The problem that in the prior art, the cleaning effect is poor is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting machines, and particularly relates to a slag removal device for a plasma cutting platform. Background Art

[0002] In the shipbuilding industry, a plasma cutting machine is often used to cut a whole steel plate into strip-shaped materials. During the cutting process, molten metal will drip onto the cutting platform and form adhering slag after cooling. Excessive accumulation of adhering slag will affect the accuracy of the cutting size of the plate, so it needs to be processed in time.

[0003] There is a Chinese utility model patent with the publication number CN219786928U and the name "A slag cleaning device for a numerical control plasma cutting machine". This slag cleaning device for a numerical control plasma cutting machine discloses that "a sliding rod 23 is slidably arranged along the length direction of a material receiving groove 21, and the length direction of the sliding rod 23 extends in the vertical direction. A first scraping plate 24 is arranged on the sliding rod 23, and the first scraping plate 24 extends along the width direction of the material receiving groove 21. The first scraping plate 24 is used to scrape the residual slag left on the cutting platform 11 into the material receiving groove 21. The first scraping plate 24 is rotatably connected to the sliding rod 23, and the first scraping plate 24 is provided with a fixing member for fixing the position of the first scraping plate 24. The fixing member is provided with a fixing bolt 231, and the fixing bolt 231 is simultaneously threaded through the top walls of the first scraping plate 24 and the sliding rod 23. A plurality of first bristles 241 are fixedly arranged on the bottom wall of the first scraping plate 24, and the first bristles 241 are made of nylon filaments. The first bristles 241 are used to abut against the cutting platform 11". However, it is difficult for the first bristles to remove relatively stubborn adhering slag, and the cleaning effect is poor. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a slag removal device for a plasma cutting platform with good cleaning effect.

[0005] To achieve the above purpose, the technical solution adopted by the slag removal device for the plasma cutting platform of the present invention is:

[0006] A slag removal device for a plasma cutting platform includes a lifting plate directly below the cross beam of the gantry. The top surface of the lifting plate is movably connected to the gantry through a lifting mechanism. A plurality of scrapers for removing adhering slag are arranged on the bottom surface of the lifting plate. Blocks fixed to the lifting plate are arranged on both sides of the scrapers along the traveling direction of the gantry. A plurality of springs are arranged between the blocks and the scrapers. One end of each spring is in contact with the scraper, and the other end is in contact with the block and is in a compressed state.

[0007] Preferably, the scraper includes a tool holder movably connected to the lifting plate. A first avoidance groove is formed on the bottom surface of the tool holder. A slot is formed on the inner wall of the first avoidance groove, and a blade is arranged in the slot. A locking plate is detachably connected to the bottom surface of the tool holder, and the locking plate fixes the blade in the slot.

[0008] Preferably, a first guide slide plate is provided on the top surface of the tool holder, a second guide slide plate is slidably fitted on the top of the first guide slide plate, and the second guide slide plate is fixedly connected to the bottom surface of the lifting plate.

[0009] Preferably, a bolt sleeved with a spring is fixedly connected to the tool holder, a counterbore through which the bolt passes is provided on the stop block, and a movable space is left between the head of the bolt and the stepped surface of the counterbore.

[0010] Preferably, the lifting mechanism includes a top plate and a bottom plate. The top plate is fixedly connected to the bottom surface of the cross beam of the gantry, the bottom plate is fixedly connected to the top surface of the lifting plate, and scissor supports are provided on both sides between the top plate and the bottom plate. The scissor support includes two symmetrical first struts. The bottom end of the first strut is hinged to the top surface of the bottom plate, the top end of the first strut is pivotally connected with a first roller, a first chute for the first roller to travel is provided on the bottom surface of the top plate, the middle of the first strut is hinged to a second strut, the first and second struts form an X shape, the top end of the second strut is hinged to the bottom surface of the top plate, the bottom end of the second strut is hinged to a second roller, a second chute for the second roller to travel is provided on the top surface of the bottom plate, a speed reducer is provided in the middle of the bottom plate, a motor is provided at the input end of the speed reducer, a lead screw pivotally connected to the bottom plate is provided at the output end of the speed reducer, a driving block is threadedly connected to the lead screw, the driving block is fixedly connected to the second struts on both sides through a driving rod, and the driving rod is coaxial with the second roller.

[0011] Preferably, convex guide plates are provided on both sides of the lifting plate, and concave guide plates fixedly connected to the gantry are slidably fitted with the convex guide plates.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. When encountering relatively stubborn slag adhesion, the compression stroke of the spring provides a buffer space to prevent the motor (the motor for driving the gantry) from stopping due to overload. At the same time, the rebound force can assist in "shattering" local bonding points to improve the cleaning effect.

[0014] 2. The scraper is hidden under the bottom surface of the cross beam of the gantry and reciprocates by means of the driving system of the gantry itself, with low cost; it moves up and down through the lifting mechanism. That is, when it is necessary to remove the slag on the cutting platform, the lifting mechanism is used to drive the scraper close to the cutting platform. After the cleaning work is completed, the lifting mechanism is reset, which does not affect the loading, unloading and cutting of the steel plate.

[0015] 3. A first guide slide plate is provided on the top surface of the tool holder, and a second guide slide plate is provided on the bottom surface of the lifting plate. The first and second guide slide plates are slidably fitted, which is beneficial to the sliding of the tool holder and can avoid the deviation or jamming of the tool holder caused by lateral force during slag cleaning, improving the stability of slag cleaning. Description of the Drawings

[0016] Figure 1It is a schematic structural diagram of the slag removal device of the plasma cutting platform of the present invention.

[0017] Figure 2 It is Figure 1 An enlarged view of part C of

[0018] Figure 3 It is a front view of the slag removal device of the plasma cutting platform of the present invention.

[0019] Figure 4 It is Figure 3 A sectional view taken along line A-A of

[0020] Figure 5 It is Figure 4 An enlarged view of part D of

[0021] Figure 6 It is a schematic structural diagram of a scraper.

[0022] Figure 7 It is a schematic structural diagram of a tool holder.

[0023] Figure 8 It is a working schematic diagram of the scraper for cleaning slag.

[0024] Figure 9 It is a schematic structural diagram of a stop block.

[0025] Figure 10 It is a schematic structural diagram of a lifting mechanism.

[0026] Figure 11 It is Figure 10 An enlarged view of part E of

[0027] Figure 12 It is a schematic structural diagram of a scissor support frame.

[0028] Among them, 1 is a gantry, 11 is a concave guide plate, 2 is a lifting plate, 21 is a convex guide plate, 22 is a second guide slide plate, 23 is a stop block, 231 is a second avoidance groove, 232 is a counterbore, 3 is a lifting mechanism, 31 is a top plate, 311 is a first guide rail, 32 is a bottom plate, 321 is a second guide rail, 33 is a scissor support frame, 331 is a first support rod, 3311 is a first roller, 332 is a second support rod, 3321 is a second roller, 34 is a speed reducer, 35 is a motor, 36 is a lead screw, 37 is a driving block, 38 is a driving rod, 4 is a scraper, 41 is a tool holder, 411 is a first avoidance groove, 412 is a slot, 42 is a first guide slide plate, 43 is a blade, 44 is a locking plate, 5 is a bolt, 6 is a spring, 7 is a cutting platform, 8 is a water tank. Detailed implementation manners

[0029] The present invention will be further clarified below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, various equivalent modifications made by those skilled in the art to the present invention all fall within the scope defined by the appended claims of this application.

[0030] As Figure 1-12 shown, a slag removal device for a plasma cutting platform includes a lifting plate 2 directly below the crossbeam of the gantry 1. The top surface of the lifting plate is movably connected to the gantry through a lifting mechanism 3. The lifting mechanism includes a top plate 31 and a bottom plate 32. The top plate is fixedly connected to the bottom surface of the gantry crossbeam, and the bottom plate is fixedly connected to the top surface of the lifting plate. Scissor supports 33 are installed on both sides between the top plate and the bottom plate. The scissor support includes two symmetrical first struts 331. The bottom end of the first strut is hinged to the top surface of the bottom plate, and the top end of the first strut is pivotally connected to a first roller 3311. A first guide rail 311 for the first roller to travel is installed on the bottom surface of the top plate. The middle of the first strut is hinged to a second strut 332. The first and second struts form an X shape. The top end of the second strut is hinged to the bottom surface of the top plate, and the bottom end of the second strut is hinged to a second roller 3321. A second guide rail 321 for the second roller to travel is installed on the top surface of the bottom plate. A speed reducer 34 is installed in the middle of the bottom plate. A motor 35 is installed at the input end of the speed reducer, and a lead screw 36 pivotally connected to the bottom plate is installed at the output end of the speed reducer. The lead screw is threadedly connected to a driving block 37. The driving block is fixedly connected to the second struts on both sides through a driving rod 38. The driving rod is coaxial with the second roller. Convex guide plates 21 are installed on both sides of the lifting plate. The convex guide plates are slidably fitted with concave guide plates 11 fixedly connected to the gantry. The convex guide plates and the concave guide plates are slidably fitted to ensure the stability of the up and down movement of the lifting plate. A plurality of scrapers 4 for removing hanging slag are installed on the bottom surface of the lifting plate. The scraper includes a tool holder 41 movably connected to the lifting plate. A first guide slide plate 42 is installed on the top surface of the tool holder. The top of the first guide slide plate is slidably fitted with a second guide slide plate 22 fixedly connected to the bottom surface of the lifting plate. The first and second guide slide plates are slidably fitted, which is beneficial for the sliding of the tool holder and can avoid the offset or jamming of the tool holder caused by lateral force during slag cleaning, improving the stability of slag cleaning. A first avoidance groove 411 is opened on the bottom surface of the tool holder. Two insertion slots 412 are opened on the inner wall of the first avoidance groove. Blades 43 are inserted into the insertion slots. The bottom surface of the tool holder is detachably connected to a locking plate 44. The locking plate fixes the blade in the insertion slot. By removing the locking plate, the severely worn blade can be replaced, which is convenient to operate. Blocks 23 fixedly connected to the lifting plate are arranged on both sides of the tool holder along the traveling direction of the gantry. A second avoidance groove 231 is opened on the bottom surface of the block. The first and second avoidance grooves are both used to avoid the flat steel of the cutting platform, so that the blade can straddle the flat steel conveniently. Two counterbores 232 are opened on both sides of the side wall of the block located on both sides of the second avoidance groove. Bolts 5 penetrate through the counterbores. The bolts of the bolts are fixedly connected to the tool holder. There is a movable space between the head of the bolt and the stepped surface of the counterbore. A spring 6 is sleeved on the outer side of the screw rod of the bolt. One end of the spring is in contact with the tool holder, and the other end is in contact with the block and is in a compressed state.

[0031] The installation method of the slag removal device of the plasma cutting platform comprises the following steps:

[0032] Step 1: Fix the cutting platform 7 in the water tank 8, and ensure that the flat steel of the cutting platform is parallel to the movement direction of the gantry;

[0033] Step 2: Place the slag removal device on the top of the cutting platform, with the blade straddling the corresponding flat steel;

[0034] Step 3: Move the gantry to the top of the slag removal device;

[0035] Step 4: Start the motor to drive the top plate to move upward to fit the bottom surface of the gantry beam, and fix the top plate to the bottom surface of the gantry with bolts;

[0036] Step 5: Fix the concave guide plate that is slidably matched with the convex guide plate to the side wall of the column of the gantry through bolts.

[0037] The specific working process and principle of the present invention are as follows: when slag cleaning is required, the motor is started, the bottom plate drives the lifting plate to move downward, the blade rides on the corresponding flat steel, the driving system of the plasma cutting equipment is started, and the gantry is driven to move in a straight line. The loose slag stuck on the flat steel can be easily scraped off. When encountering more stubborn slag, the blade drives the knife seat compression spring to relieve the impact force between the blade and the stubborn slag, avoiding the motor (used to drive the gantry) from shutting down due to overload. At the same time, the rebound force can assist in "shattering" the local bonding points (stubborn slag) to improve the cleaning effect.

Claims

1. A slag removal device for a plasma cutting platform, characterized in that: It includes a lifting plate located directly below the crossbeam of the gantry. The top surface of the lifting plate is movably connected to the gantry through a lifting mechanism. A number of scrapers for removing slag are provided on the bottom surface of the lifting plate. Blocks fixed to the lifting plate are provided on both sides of the scraper along the walking direction of the gantry. A number of springs are provided between the blocks and the scrapers. One end of the spring is in contact with the scraper, and the other end is in contact with the block and is in a compressed state.

2. The slag removal device of the plasma cutting platform according to claim 1, characterized in that: The scraper includes a tool holder movably connected to the lifting plate. A first relief groove is formed on the bottom surface of the tool holder. A slot is formed on the inner wall of the first relief groove. A blade is arranged in the slot. A locking plate is detachably connected to the bottom surface of the tool holder, and the locking plate fixes the blade in the slot.

3. The slag removal device of the plasma cutting platform according to claim 2, characterized in that: A first guide slide plate is arranged on the top surface of the tool holder. A second guide slide plate is slidably fitted on the top of the first guide slide plate, and the second guide slide plate is fixed to the bottom surface of the lifting plate.

4. The slag removal device of the plasma cutting platform according to claim 3, characterized in that: A bolt sleeved with a spring is fixed to the tool holder. A counterbore through which the bolt passes is formed in the block, and there is a movable space between the head of the bolt and the stepped surface of the counterbore.

5. The slag removal device of the plasma cutting platform according to claim 1, characterized in that: The lifting mechanism includes a top plate and a bottom plate. The top plate is fixed to the bottom surface of the crossbeam of the gantry, and the bottom plate is fixed to the top surface of the lifting plate. Scissor supports are arranged on both sides between the top plate and the bottom plate. The scissor support includes two symmetric first struts. The bottom end of the first strut is hinged to the top surface of the bottom plate. The top end of the first strut is pivotally connected with a first roller. A first chute for the first roller to travel is arranged on the bottom surface of the top plate. The middle of the first strut is hinged to a second strut. The first and second struts form an X shape. The top end of the second strut is hinged to the bottom surface of the top plate. The bottom end of the second strut is hinged with a second roller. A second chute for the second roller to travel is arranged on the top surface of the bottom plate. A speed reducer is arranged in the middle of the bottom plate. An electric motor is arranged at the input end of the speed reducer. A lead screw pivotally connected to the bottom plate is arranged at the output end of the speed reducer. A driving block is threadedly connected to the lead screw. The driving block is fixed to the second struts on both sides through a driving rod, and the driving rod is coaxial with the second roller.

6. The slag removal device of the plasma cutting platform according to claim 5, characterized in that: Convex guide plates are arranged on both sides of the lifting plate, and concave guide plates fixed to the gantry are slidably fitted with the convex guide plates.

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