A galvanized sheet plasma arc cutting mechanism

Abstract

The application discloses a galvanized sheet plasma arc cutting mechanism and relates to the technical field of plasma cutting.The galvanized sheet plasma arc cutting mechanism comprises a cutting platform, Y-axis guide rails are arranged on the two sides of the cutting platform, a lower pressing boss parallel to the sliding table of the Y-axis guide rail is arranged below the sliding table, split type grid plates are arranged in pairs in the cutting platform, and a driving assembly is arranged below the running track of the Y-axis guide rail.The driving displacement of the Y-axis guide rail is used as a driving source to drive the lower pressing boss to apply driving to the split type driving assemblies one by one, the grid plates below the corresponding cutting guns are driven to reciprocate, the synchronous friction cleaning and deslagging process of the burrs adhered to the cutting seam after cutting is carried out, the water flow in the water tank is driven to reciprocate while the grid plates below the corresponding cutting guns reciprocate, the contact area of the water flow and air is increased, the cutting flue gas is fully combined and settled, and the high temperature of the cutting seam can be synchronously water-cooled and cooled down.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plasma cutting, in particular to a galvanized sheet plasma arc cutting mechanism. BACKGROUND

[0002] Plasma arc cutting is a cutting method that uses a high-frequency oscillator to excite gas ionization, forming a high-temperature and high-speed plasma arc. The arc is under the action of compression effect (mechanical compression) and magnetic shrinkage effect, and the energy is highly concentrated, producing high temperature (about 2700-30000°C) to locally melt the metal. At the same time, the high-speed airflow (speed 300-1000m / s) blows away the molten metal, forming a narrow cut. It is widely used in cutting processes of metals such as galvanized sheet, cast iron, tungsten, etc.

[0003] For example, in the Chinese patent with publication number CN119747815A, a numerical control plasma cutting machine and its use method are disclosed. This kind of device uses a cutting frame as its cutting platform when performing the cutting process. The particles after cutting fall into the sterilization water inside the filter box for sedimentation when turning inside the filter box because their mass is greater than that of the gas. This reduces the harm and pollution caused by smoke and dust of the cutting machine. And through the activated carbon filter plate, the smoke and dust can be filtered again, improving the effect of the cutting machine on smoke and dust filtration.

[0004] For example, in the Chinese patent with publication number CN119681397A, a plasma metal cutting equipment and cutting method are disclosed. This kind of device uses a feeding mechanism to push the lowest metal plate in the metal plate stack to the plasma cutting machine, so that the metal plate can be automatically pushed to the cutting platform of the plasma cutting machine for cutting processing. This saves a lot of energy of the workers and makes the operation more convenient.

[0005] However, the existing plasma arc cutting equipment often causes the bottom of the cutting seam to be covered with slag after cutting the metal plate due to improper cutting speed (fast slag residue caused by arc lag of cutting torch, slow cutting torch arc forming multiple bubble metal deposits at the bottom of the cutting gap), abnormal oxygen supply and gas parameters, wear or deformation of key equipment such as nozzle, material properties and thickness, etc. The slag adheres firmly to the cutting seam as the temperature decreases, causing the cut plate to have a rough edge, and subsequent polishing of the rough edge is extremely time-consuming and laborious. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a galvanized sheet plasma arc cutting mechanism to solve the problems raised in the background art.

[0007] In order to achieve the above object, the present application is realized by the following technical scheme: A galvanized sheet plasma arc cutting mechanism, comprising: a cutting platform; Y-axis guide rails, which are provided in two groups and are respectively arranged on both sides of the cutting platform, and a lower pressing boss parallel to the Y-axis guide rails is arranged below the sliding table of the Y-axis guide rails; a grid plate, which is arranged inside the cutting platform along the running track of the Y-axis guide rails and is provided in a split type in two groups; a driving assembly, which is arranged below the running track of the Y-axis guide rails, and when the Y-axis guide rail drives the cutting gun to displace for cutting the galvanized sheet, the lower pressing boss is pressed towards the driving assembly to form a driving force for the reciprocating displacement of the grid plate below the driving cutting gun, so that the grid plate reciprocally rubs against the galvanized sheet to remove slag from the weld joint.

[0008] Further, the water tank is further provided, the water tank is opened in the inside of the cutting platform, the one-way flow guide opening is opened in the bottom of the grid plate and is immersed in the water tank, and the one-way cover plates are arranged on one side of the two groups of one-way flow guide openings.

[0009] Further, the plate surface of the one-way cover plate is larger than the opening of the one-way flow guide opening, and the top of the one-way cover plate is provided with a hinge for opening and closing the one-way flow guide opening.

[0010] Further, the X-axis guide rail is further provided, which is arranged above the sliding table of the Y-axis guide rail; and the electric push rod is arranged on the Y-axis guide rail, and the telescopic end of the electric push rod is provided with a support frame, and the side edges of the support frame are respectively provided with the first pressing roller and the second pressing roller which are opposite to the two sides of the cutting gun.

[0011] Further, the driving assembly comprises: a reciprocating sliding table, which is flush with the grid plate and is arranged on the cutting platform, one side of the reciprocating sliding table is provided with a support seat which is fixedly connected with the grid plate, the other side of the reciprocating sliding table is provided with a reciprocating driving structure for driving the displacement of the grid plate, the reciprocating driving structure is split and arranged on the driving shell; and a pressure bearing seat, which is arranged on the reciprocating sliding table, one side of the pressure bearing seat is provided with a pressure rod, the top end of the pressure rod is provided with a pressure bearing recess which is in pressure contact with the lower pressing boss, the bottom end of the pressure rod is provided with a reciprocating rack which is in meshing transmission with the reciprocating driving structure, and the pressure rod is provided with a compression spring for providing displacement reset for the pressure bearing recess.

[0012] Further, the driving assembly further comprises: a rack, which is provided in two groups and is arranged on the displacement track of the support seat in a tooth pressure upside-down manner; and a passive gear, which is arranged at both ends of the fourth driving shaft and is built-in the support seat and is connected with the rack in meshing.

[0013] Further, the reciprocating driving structure comprises a second driving shaft and a third driving shaft arranged horizontally opposite to the grid plate and close to the driving shell, wherein the second driving shaft and the third driving shaft are respectively provided with a first driving gear and a second driving gear which are engaged with each other, so as to form a forward rotation state and a reverse rotation state of the second driving shaft and the third driving shaft, and the second driving shaft and the third driving shaft are respectively provided with a reciprocating gear one and a reciprocating gear two which are arranged staggeredly, so that the reciprocating gear one and the reciprocating gear two are engaged with the reciprocating rack staggeredly in the forward rotation state and the reverse rotation state, and the reciprocating rack is pushed to reciprocate, so as to form a driving force for driving the grid plate to reciprocate and rub against the galvanized sheet to remove slag.

[0014] Further, the adjacent two groups of pressure receiving recesses are arranged staggeredly, and the pressing protrusions are arranged in two groups and are staggeredly pressed against the adjacent pressure receiving recesses.

[0015] Further, the overflow tank is arranged on both sides of the tank body of the water tank and is used for collecting overflow water in the water tank driven by the grid plate; the telescopic cover is in the organ cover structure, is arranged between the adjacent reciprocating sliding tables along the direction of the tank body of the overflow tank, and is always used for blocking the overflow water in the overflow tank along with the reciprocating sliding tables.

[0016] Further, the first fixing seat arranged on the reciprocating sliding table and the second fixing seat arranged on the driving shell are further included, one side of the first fixing seat is provided with a reset pull rod which slides along the second fixing seat, a reset spring which applies elastic reset to the reset pull rod is arranged on the reset pull rod, and the reciprocating displacement driving force of the reciprocating sliding table is used to drive the grid plate to reset.

[0017] The present application has the following beneficial effects:

[0018] (1) The galvanized sheet plasma arc cutting mechanism uses the driving displacement of the Y-axis guide rail as a driving source, drives the cutting gun to displace for cutting the galvanized sheet, drives the split driving assembly one by one, drives the grid plate below the cutting gun to reciprocate, synchronously rubs and cleans the burr adhered to the cutting seam, drives the water flow in the water tank to reciprocate while the grid plate below the cutting gun reciprocates, increases the contact area of the water flow and the air, fully combines the cutting flue gas and precipitates, and synchronously cools the high temperature of the cutting seam.

[0019] (2), the galvanized sheet plasma arc cutting mechanism, through the split type setting of drive assembly, make it in not work keeps empty load drive, only when Y axis guide rail drive cutting gun displacement cutting to corresponding drive assembly above, to its each apply drive, make the grate plate reciprocating movement just below the cutting gun, synchronous friction cleaning slag of cutting seam after cutting gun cutting, it has excellent transmission performance, can clean slag before cutting seam burr cooling solidification, and has precise transmission control performance, can always keep the slag removal process of cutting seam burr.

[0020] (3), the galvanized sheet plasma arc cutting mechanism, through control cutting gun grate plate reciprocating displacement just below, on the one hand, it has synchronous friction cleaning slag work of galvanized sheet cutting seam burr, on the other hand, the reciprocating movement of grate plate, can drive the water flow dynamic fluctuation in water tank, water flow to the galvanized sheet, cooling cutting seam, and at the same time, cutting seam burr is cooled and solidified, make grate plate friction cleaning, burr fall into the water tank, and the fluctuation of water flow can improve the contact area with air, and the smoke generated by cutting is actively combined with the air, which reduces the diffusion of smoke.

[0021] (4), the galvanized sheet plasma arc cutting mechanism, through the setting of two groups of pressure roller on both sides of cutting gun, on the one hand, it can press the galvanized sheet during cutting horizontally, avoid the galvanized sheet during cutting due to stress and other reasons, on the other hand, it can press the galvanized sheet during reciprocating displacement cleaning slag of grate plate, form pressure state with grate plate, reciprocating displacement friction of grate plate can push the cutting seam burr, avoid the galvanized sheet material.

[0022] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure of the present application is shown in the figure;

[0024] Figure 2 The assembly of the two groups of pressure rollers in the present application is shown in the figure;

[0025] Figure 3 The assembly of the lower pressure boss in the present application is shown in the figure;

[0026] Figure 4 The transmission of the two groups of pressure rollers in the present application is shown in the figure;

[0027] Figure 5 The first drive of the grate plate in the present application is shown in the figure;

[0028] Figure 6 The second drive of the grate plate in the present application is shown in the figure;

[0029] Figure 7 The third driving schematic diagram of the grid plate in the application;

[0030] Figure 8 The force transmission schematic diagram of the reciprocating slide in the application;

[0031] Figure 9 The first structural schematic diagram of the driving assembly in the application;

[0032] Figure 10 The second structural schematic diagram of the driving assembly in the application;

[0033] Figure 11 The planar schematic diagram of the driving assembly in the application;

[0034] Figure 12 The force schematic diagram of the lower pressing boss and the pressure bearing recess in the application;

[0035] Figure 13 The assembly schematic diagram of the grid plate, the one-way cover plate and the water-repelling turning plate in the application;

[0036] Figure 14 The planar assembly diagram of the grid plate, the one-way cover plate and the water-repelling turning plate in the application;

[0037] Figure 15 The exploded view of the grid plate, the one-way cover plate and the water-repelling turning plate in the application;

[0038] Figure 16 The transmission schematic diagram of the water-repelling turning plate in the application.

[0039] In the figure, 1 is a cutting platform; 2 is a driving shell; 3 is a grid plate; 4 is a driving motor; 5 is a first driving shaft; 6 is a transmission worm; 7 is a transmission worm gear; 8 is a Y-axis guide rail; 9 is an X-axis guide rail; 10 is a Z-axis guide rail; 11 is a plasma cutting gun; 12 is a first pressing roller; 13 is a second pressing roller; 14 is a support frame; 15 is an electric push rod; 16 is a lower pressing boss; 17 is a pressure bearing recess; 18 is a water tank; 19 is an overflow tank; 20 is a one-way flow guide; 21 is a support seat; 22 is a reciprocating slide; 23 is an extension cover; 24 is a hinge; 25 is a one-way cover plate; 26 is a guide slide; 27 is a guide slide rail; 28 is a pressure bearing seat; 29 is a reciprocating rack; 30 is a reciprocating gear one; 31 is a reciprocating gear two; 32 is a pull rod reset structure; 321 is a first fixed seat; 322 is a second fixed seat; 323 is a reset pull rod; 324 is a reset spring; 33 is a pressure rod; 34 is a compression spring; 35 is a second driving shaft; 36 is a third driving shaft; 37 is a driving gear one; 38 is a driving gear two; 39 is a fourth driving shaft; 40 is a water-repelling turning plate; 41 is a driven gear; and 42 is a rack. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0041] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the referred component or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0042] Please refer to Figures 1-16 The embodiment of the present application provides a technical solution: a galvanized sheet plasma arc cutting mechanism.

[0043] Please refer to Figures 1-3 A galvanized sheet plasma arc cutting mechanism, comprising a cutting platform 1, the inside of the cutting platform 1 is provided with a grid plate 3 arranged in two groups, the upper two sides of the cutting platform 1 are provided with Y-axis guide rails 8, the sliding table of the Y-axis guide rails 8 is provided with X-axis guide rails 9, the sliding table of the X-axis guide rails 9 is provided with Z-axis guide rails 10, the sliding table of the Z-axis guide rails 10 is provided with a plasma cutting gun 11, during the cutting process of the galvanized sheet, the galvanized sheet to be cut is placed on the grid plate 3, and then based on the horizontal driving of the Y-axis guide rails 8, the left and right driving of the X-axis guide rails 9 and the lifting driving of the Z-axis guide rails 10, the plasma cutting gun 11 is driven to move down to the appropriate height of the galvanized sheet, and the plasma cutting gun 11 is driven to translate along the surface of the galvanized sheet to perform the plasma cutting process.

[0044] Furthermore, the slide table of the Y-axis guide rail 8 is provided with a downward pressing boss 16 parallel to the slide table, and the driving assembly is arranged below the running track of the Y-axis guide rail 8. When the Y-axis guide rail 8 drives the plasma cutting torch 11 to displace for cutting the galvanized sheet, the downward pressing boss 16 is driven to press the driving assembly, thereby forming the driving force for the grid plate 3 below the plasma cutting torch 11 to reciprocate and displace, so that the grid plate 3 reciprocates and rubs against the galvanized sheet horizontally, thereby rubbing and removing the slag on the welding seam. When the plasma cutting torch 11 cuts the galvanized sheet by horizontally displacing along the Y-axis guide rail 8, the downward pressing boss 16 below the Y-axis guide rail 8 is synchronously slid into the corresponding driving assembly, the grid plate 3 below the plasma cutting torch 11 reciprocates and displaces horizontally, thereby rubbing and removing the slag on the cutting seam, and with the horizontal extension of the cutting path, the horizontal cutting path of the plasma cutting torch 11 changes, and the running state of the grid plate 3 below the plasma cutting torch 11 can synchronously change, thereby keeping reciprocating and displacing along with the horizontal displacement of the plasma cutting torch 11, and accurately rubbing and removing the slag on the horizontal cutting seam. When the plasma cutting torch 11 cuts by leftward and rightward displacing along the X-axis guide rail 9, the grid plate 3 reciprocates and displaces horizontally, thereby always rubbing and removing the slag on the whole surface of the galvanized sheet, so that the slag removing process of the left and right cutting seams of the galvanized sheet can be realized by controlling the horizontal reciprocation of the grid plate 3. The Z-axis guide rail 10 for driving the plasma cutting torch 11 to displace vertically is used for adjusting and controlling the cutting distance between the plasma cutting torch 11 and the galvanized sheet, and does not participate in the adjustment of the cutting seam path, so the displacement state of the Z-axis guide rail 10 does not need to be considered.

[0045] Please refer to Figures 5-12To realize the reciprocating displacement of the grid plate 3 to remove slag from the cutting seam of the galvanized sheet, the driving assembly includes a reciprocating sliding table 22 provided on the cutting platform 1 and flush with the grid plate 3, a support seat 21 provided on one side of the reciprocating sliding table 22 and fixedly connected with the grid plate 3, a reciprocating driving structure provided on the other side of the reciprocating sliding table 22 and driving the displacement of the grid plate 3, the reciprocating driving structure being in a split type and mounted on the driving shell 2, and a pressure bearing seat 28 provided on the reciprocating sliding table 22, one side of the pressure bearing seat 28 being provided with a pressure rod 33, the top end of the pressure rod 33 being provided with a pressure bearing concave platform 17 in pressure contact with the downward pressing convex platform 16, the bottom end of the pressure rod 33 being provided with a reciprocating rack 29 in meshing transmission with the reciprocating driving structure, the pressure rod 33 being provided with a compression spring 34 for providing displacement reset for the pressure bearing concave platform 17. During the cutting process of the galvanized sheet, the Y-axis guide rail 8 drives the plasma cutting gun 11 to move horizontally along the galvanized sheet, and in combination with the X-axis guide rail 9, drives the plasma cutting gun 11 to move left and right along the galvanized sheet to perform the cutting process. At the same time, the Y-axis guide rail 8 drives the downward pressing convex platform 16 to displace synchronously with the plasma cutting gun 11, so that the downward pressing convex platform 16 is pressed into the pressure bearing concave platform 17 one by one and slides relatively with the pressure bearing concave platform 17. When the downward pressing convex platform 16 slides into the pressure bearing concave platform 17, the pressure bearing concave platform 17 is pressed, and the reciprocating rack 29 is driven by the pressure rod 33 to press downward and mesh with the corresponding reciprocating driving structure (the reciprocating driving structure and the grid plate 3 are in a split type and correspond one by one. When the downward pressing convex platform 16 is pressed into the pressure bearing concave platform 17 one by one, the corresponding reciprocating driving structure is in a driving state to drive the corresponding grid plate 3 to displace reciprocally. When the downward pressing convex platform 16 slides out of the current pressure bearing concave platform 17, the driving force of the current reciprocating driving structure disappears, and the grid plate 3 stops reciprocating displacement. At this time, the downward pressing convex platform 16 slides into the next group of pressure bearing concave platforms 17, and the next group of reciprocating driving structures drives the reciprocating driving force of the next group of grid plates 3, so that each grid plate 3 always displaces reciprocally synchronously with the horizontal displacement of the plasma cutting gun 11), a reciprocating driving force of the reciprocating rack 29 is generated, and then the reciprocating driving force is transmitted to the grid plate 3 through the reciprocating sliding table 22 due to the integral assembly of the reciprocating rack 29 and the reciprocating sliding table 22 through the pressure bearing seat 28, so as to drive the grid plate 3 below the corresponding plasma cutting gun 11 to displace reciprocally. The reciprocating displacement of the grid plate 3 is used to rub the edges of the cutting seam of the galvanized sheet to remove slag, and when the plasma cutting gun 11 continues to cut forward (since the grid plate 3 penetrates the surface of the galvanized sheet, when the X-axis guide rail 9 drives the plasma cutting gun 11 to move left and right to cut, the horizontal reciprocating displacement of the downward grid plate 3 can clean the edges of the cutting seam synchronously), the pressure bearing concave platform 17 slides out of the corresponding downward pressing convex platform 16 and slides into the next group of downward pressing convex platforms 16 to apply the reciprocating driving force to the next group of grid plates 3, and the downward pressing convex platform 16 is reset by the compression spring 34 after the pressing force disappears, so that the reciprocating rack 29 is reset upward.The meshing driving state with the reciprocating driving structure is released to stop the current grid plate 3, specifically:

[0046] The reciprocating driving structure includes a second driving shaft 35 and a third driving shaft 36 horizontally opposite to the driving shell 2 near the grid plate 3, wherein the second driving shaft 35 and the third driving shaft 36 are respectively provided with a driving gear one 37 and a driving gear two 38 which are meshed with each other in the axial middle part, forming the forward and reverse rotation state of the second driving shaft 35 and the third driving shaft 36. The second driving shaft 35 and the third driving shaft 36 are respectively provided with reciprocating gears one 30 and two 31 at one end, and the reciprocating gears one 30 and two 31 are arranged with tooth gaps. The second driving shaft 35 is provided with a transmission worm gear 7 at the other end, and the driving motor 4 and the first driving shaft 5 are combined on one side of the driving shell 2. The first driving shaft 5 is provided with a transmission worm 6 along its axial direction which is meshed with the transmission worm gear 7. During the plasma cutting of galvanized sheet and the like, the driving motor 4 is controlled to drive the first driving shaft 5 to rotate, and then drive the transmission worm 6 and the transmission worm gear 7 to rotate, thereby driving the second driving shaft 35 to rotate. During the rotation of the second driving shaft 35, the transmission combination of the driving gear one 37 and the driving gear two 38 forms the forward and reverse rotation state of the second driving shaft 35 and the third driving shaft 36, so that the reciprocating gears one 30 and two 31 on the second driving shaft 35 and the third driving shaft 36 rotate relatively. When the reciprocating rack 29 is pressed to the reciprocating gears one 30 and two 31 by the pressing force, the reciprocating gears one 30 and two 31 are sequentially meshed with the reciprocating rack 29 in a staggered manner, thereby generating a reciprocating gear meshing force on the reciprocating rack 29. The reciprocating force is transmitted to the grid plate 3, thereby forming a driving force for driving the grid plate 3 to reciprocally rub against the galvanized sheet.

[0047] It should be noted that the transmission combination of the driving motor 4 and the first driving shaft 5 drives all the reciprocating gears one 30 and two 31 to rotate relatively. The reciprocating driving force formed thereby is only started when the pressure recess 17 and the pressing boss 16 are in pressure contact, thereby forming a local linkage parallel state of the plasma cutting gun 11 and the grid plate 3 below it. The linkage state is always maintained at the cutting position of the galvanized sheet, and the grid plate 3 below the galvanized sheet at other cutting and slag removal positions will not be displaced. Only the ability to support the galvanized sheet is provided, and the reciprocating driving structure at other positions remains in an unloaded running state, thereby saving the running cost caused by unnecessary load operation.

[0048] In addition, the two adjacent groups of pressure recesses 17 are arranged in a staggered manner, and the pressing boss 16 is arranged in two groups and is staggered with the adjacent pressure recesses 17. By arranging the pressure recesses 17 in a staggered manner, the reciprocating racks 29 below the pressure recesses 17 are arranged in a staggered manner, thereby saving the displacement space required for the reciprocation of adjacent reciprocating racks 29 and improving the compactness of the structure.

[0049] And, the reciprocating slide 22 is provided with a first fixed seat 321, the driving shell 2 is provided with a second fixed seat 322, one side of the first fixed seat 321 is provided with a reset pull rod 323 which slides along the second fixed seat 322, the reset pull rod 323 is provided with a reset spring 324 which applies elastic extension reset to it, through the pull rod reset structure 32 composed of the first fixed seat 321, the second fixed seat 322, the reset pull rod 323 and the reset spring 324, when the reciprocating slide 22 is forced to displace reciprocally, it overcomes the elastic tension of the reset spring 324 in the pull rod reset structure 32 to displace reciprocally, and after the force on the reciprocating slide 22 is removed, through the pulling reset of the pull rod reset structure 32, it can drive the reciprocating slide 22 to reset, reset the grid plate 3 after the reciprocating friction displacement, keep the initial position to support the galvanized sheet, and make the pressure bearing concave 17 displace to reset to keep the continuous pressure contact with the subsequent lower pressing convex 16.

[0050] Please refer to Figures 5-7 , Figures 13-16In order to realize the dust removal of cutting flue gas and the cooling of cutting seam, the water tank 18 is arranged in the cutting platform 1, the one-way guide opening 20 is arranged in the bottom of the grid plate 3 and is immersed in the water tank 18, the one-way cover plate 25 is arranged on one side of the two groups of one-way guide openings 20 and is rotatable, the plate surface of the one-way cover plate 25 is larger than the opening of the one-way guide opening 20, the hinge 24 is arranged on the top of the one-way cover plate 25 and provides the opening and closing of the one-way cover plate 25 along the one-way guide opening 20, the water is usually injected in the water tank 18 of the plasma arc cutting equipment during the daily cutting, so as to be used as the cooling medium of the tail flame of the plasma cutting gun 11 and is simultaneously used as the adsorption and dust removal medium of the cutting flue gas, the water is injected in the water tank 18 of the equipment and is higher than the one-way guide opening 20, when the slag is removed by the reciprocating displacement of the grid plate 3, the water flow in the water tank 18 is reciprocated, so as to increase the contact area of the water flow and air, increase the contact range of the cutting flue gas, improve the combination and settlement efficiency of the cutting flue gas, when the grid plate 3 is displaced in the positive direction, the water flow at the one-way guide opening 20 of the grid plate 3 close to the positive displacement direction is opened by the passive impact of the water flow, so that the water flow is converged between the two adjacent groups of grid plates 3 through the one-way guide opening 20, the one-way cover plate 25 at the one-way guide opening 20 of the other group of grid plates 3 is pressed by the passive water flow, is tightly attached to the one-way guide opening 20 and forms the state of one-way flow and the other way flow, on one hand, the relative resistance of the water flow and the grid plate 3 is reduced, on the other hand, the water flow is converged between the two groups of grid plates 3 and generates greater dynamic wave under the pushing of the grid plate 3, so as to be combined with the cutting flue gas, when the grid plate 3 is displaced in the reverse direction, the one-way cover plate 25 at the one-way guide opening 20 close to the reverse displacement side is opened by the water flow, the one-way cover plate 25 of the other group is closed under the impact of the water flow, the water flow is again converged between the two adjacent groups of grid plates 3, the reciprocating pushing of the water flow is formed, so that the grid plate 3 has the function of pushing the dynamic wave of the water flow for dust removal when the slag on the cutting seam is removed.

[0051] As a further aspect of the present embodiment, the displacement track of the support base 21 is provided with a rack 42 in the form of a tooth pressure inverted installation, and a fourth drive shaft 39 is arranged between the two adjacent groups of grating plates 3, the fourth drive shaft 39 is provided with a water stirring flap 40 along its axial direction, which is staggered with the one-way cover plate 25 and immersed in the water tank 18, and the two ends of the fourth drive shaft 39 are provided with passive gears 41 which are embedded in the support base 21 and engaged with the rack 42. When the support base 21 is displaced reciprocatingly along with the grating plate 3, the passive gears 41 are driven to rotate along the rack 42, generating a passive thrust to drive the fourth drive shaft 39 to rotate along with the displacement of the grating plate 3, so that the water stirring flap 40 on the fourth drive shaft 39 rotates to stir the dynamic water flow between the two adjacent groups of grating plates 3 again. On the one hand, the water flow is more turbulent, which is more sufficient to combine and settle with the cutting smoke. On the other hand, the water flow is stirred to the cutting gap, which cools and cools the cutting gap and the burr at the cutting gap, facilitating the subsequent cutting plate material taking while enabling the burr at the cutting gap to tend to solidify from liquid state, avoiding the burr not being completely cooled and solidified to adhere to the grating plate 3 when the grating plate 3 is rubbed and cleaned. The cutting burr and impurities in the smoke finally settle to the bottom of the water under the action of gravity, and the teeth of the rack 42 are inverted, and the transmission between the rack 42 and the passive gears 41 is embedded in the support base 21, which can effectively prevent impurities in the water flow from gathering on the rack 42 and the passive gears 41, so that the two can maintain the characteristics of continuous engagement and transmission.

[0052] Furthermore, the tank body of the water tank 18 is provided with an overflow tank 19, the tank body of the overflow tank 19 is provided with a telescopic cover 23 in the form of an organ cover structure, and the telescopic cover 23 is arranged between the adjacent reciprocating sliding tables 22. When the grating plate 3 moves reciprocatingly to push the water flow in the water tank 18 to dynamically fluctuate, the overflow caused by the dynamic fluctuation can be collected by the arrangement of the overflow tank 19 to prevent water from splashing out. Moreover, the reciprocating sliding table 22 drives the grating plate 3 to move reciprocatingly, and at the same time, it drives the telescopic cover 23 to synchronously extend and retract, so as to always close the space required by the displacement of the reciprocating sliding table 22 to maintain the closed overflow water collection characteristics of the overflow tank 19.

[0053] In addition, the inner wall of the tank body of the overflow tank 19 is provided with a guide sliding rail 27, and a guide sliding table 26 supporting the reciprocating sliding table 22 and the support base 21 is arranged on the guide sliding rail 27. The sliding combination of the guide sliding table 26 and the guide sliding rail 27 improves the stability of the displacement linkage of the reciprocating sliding table 22 and the support base 21.

[0054] Please refer to Figures 1-4In order to realize the stability of the galvanized plate during the plasma cutting, the electric push rod 15 is arranged on the X-axis guide rail 9, the telescopic end of the electric push rod 15 is provided with the support frame 14, the side edges of the support frame 14 are respectively provided with the first compression roller 12 and the second compression roller 13 which are opposite to the two sides of the cutting torch, during the cutting of the galvanized plate by the plasma cutting torch 11, the telescopic brake of the electric push rod 15 is controlled, so that the combination of the first compression roller 12 and the second compression roller 13 is centered on the plasma cutting torch 11 and is pressed onto the galvanized plate on the two sides of the plasma cutting torch 11, so as to position and press the galvanized plate, then the rolling characteristics of the two groups of compression rollers are utilized, when the Y-axis guide rail 8 drives the horizontal displacement cutting of the plasma cutting torch 11, the two groups of compression rollers can be synchronously rolled and displaced with the horizontal displacement of the cutting torch 11, so as to keep the dynamic pressing on the cutting part of the galvanized plate, when the X-axis guide rail 9 drives the left-right translation cutting of the plasma cutting torch 11, since the two groups of compression rollers penetrate the left-right translation cutting path of the plasma cutting torch 11, they can keep the static pressing on the cutting part of the galvanized plate in the static state, so as to keep the cutting path of the galvanized plate within the two groups of compression rollers, on the one hand, the situation that the galvanized plate during the cutting is impacted by the cutting torch head due to the stress and the like is avoided, on the other hand, the galvanized plate during the cutting can be pressed in real time, so as to press the galvanized plate cleaned by the reciprocating displacement of the grid plate 3 from the cutting seam and the like, form the counter-pressing state with the grid plate 3, keep the grid plate 3 to push and rub the cutting seam in the flat mode, and avoid the situation that the galvanized plate is lifted during the slag removal.

[0055] It is to be understood that the terminology used herein such as first and second, and the like, is only used to distinguish one entity or action from another entity or action, and does not necessarily require or imply that there is any such actual relationship or order between such entities or actions. In addition, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or device that includes a list of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such process, method, article, or device.

[0056] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details of the application, and the application is not limited to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of the specification. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A plasma arc cutting mechanism for galvanized sheet, characterized in that: include: Cutting platform (1); Y-axis guide rail (8), the Y-axis guide rail (8) is set in two sets, respectively located on both sides of the cutting platform (1), and a pressing boss (16) parallel to it is provided below the slide of the Y-axis guide rail (8). The grid plate (3) is located inside the cutting platform (1) along the travel track of the Y-axis guide rail (8). The grid plate (3) is set in pairs of separate units. The drive assembly is located below the travel track of the Y-axis guide rail (8). When the Y-axis guide rail (8) drives the cutting gun to move and cut the galvanized sheet, it drives the lower pressing boss (16) to press against the drive assembly, forming a driving force to drive the grid plate (3) below the cutting gun to move back and forth, so that the grid plate (3) rubs back and forth relative to the galvanized sheet, and rubs back and forth to remove slag from the cut weld. The driving component includes: A reciprocating slide (22) is flush with the grid plate (3) and is set on the cutting platform (1). A support seat (21) is fixedly connected to the grid plate (3) on one side of the reciprocating slide (22). A reciprocating drive structure for driving the grid plate (3) to move is provided on the other side of the reciprocating slide (22). The reciprocating drive structure is split and mounted on the drive housing (2). The pressure seat (28) is located on the reciprocating slide (22). A pressure rod (33) is provided on one side of the pressure seat (28). The top of the pressure rod (33) is provided with a pressure-bearing recess (17) that is in pressure contact with the lower pressure boss (16). The bottom of the pressure rod (33) is provided with a reciprocating rack (29) that meshes with the reciprocating drive structure. A compression spring (34) is provided on the pressure rod (33) to provide displacement reset for the pressure-bearing recess (17). The reciprocating drive structure includes a second drive shaft (35) and a third drive shaft (36) horizontally opposite each other on the drive housing (2) near the grid plate (3). The second drive shaft (35) and the third drive shaft (36) are respectively provided with a drive gear 1 (37) and a drive gear 2 (38) meshing with each other in the middle of their axial direction, forming a forward and reverse rotation state of the second drive shaft (35) and the third drive shaft (36). One end of the second drive shaft (35) and the third drive shaft (36) is respectively provided with a reciprocating gear 1 (30) and a reciprocating gear 2 (31) with staggered teeth, so that the reciprocating gear 1 (30) and the reciprocating gear 2 (31) mesh with the reciprocating rack (29) after being pressed down, pushing the reciprocating rack (29) to move back and forth, forming a driving force for the drive grid plate (3) to reciprocate and rub against the galvanized plate to remove slag.

2. The plasma arc cutting mechanism for galvanized sheet according to claim 1, characterized in that: Also includes: A water tank (18) is provided inside the cutting platform (1); One-way flow inlet (20), the one-way flow inlet (20) is opened at the bottom of the grid plate (3) and immersed in the water tank (18), and one-way cover plate (25) with relative rotation is provided on one side of each of the two sets of one-way flow inlets (20). The fourth drive shaft (39) is located between two adjacent sets of grid plates (3). The fourth drive shaft (39) is provided with a staggered one-way cover plate (25) and a water-dispelling flap (40) immersed in the water tank (18) along its axial direction.

3. The plasma arc cutting mechanism for galvanized sheet according to claim 2, characterized in that: The surface of the one-way cover (25) is larger than the opening of the one-way flow port (20), and the top of the one-way cover (25) is provided with a hinge (24) that allows it to open and close along the one-way flow port (20).

4. The plasma arc cutting mechanism for galvanized sheet according to claim 2, characterized in that: Also includes: X-axis guide rail (9), which is located above the slide table of Y-axis guide rail (8); Electric push rod (15), the electric push rod (15) is mounted on Y-axis guide rail (8), the telescopic end of the electric push rod (15) is provided with support frame (14), the side of the support frame (14) is provided with first pressure roller (12) and second pressure roller (13) facing the two sides of the cutting gun respectively.

5. A plasma arc cutting mechanism for galvanized sheet according to any one of claims 2-4, characterized in that: The driving component also includes: The rack (42) is provided in two sets, and the rack (42) is provided on the displacement track of the support base (21) in the form of tooth pressing and inverted mounting; The passive gear (41) is located at both ends of the fourth drive shaft (39). The passive gear (41) has a built-in support seat (21) and is meshed with the rack (42).

6. The plasma arc cutting mechanism for galvanized sheet according to claim 5, characterized in that: The two adjacent sets of pressure-bearing recesses (17) are arranged in a staggered manner, and the lower pressure protrusions (16) are set in two groups, which are respectively pressed into the adjacent pressure-bearing recesses (17).

7. The plasma arc cutting mechanism for galvanized sheet according to claim 5, characterized in that: Also includes: Overflow trough (19), the overflow trough (19) is located on both sides of the tank body of the water tank (18) to collect the overflow water in the water tank (18) driven by the grid plate (3); Telescopic cover (23), the telescopic cover (23) is a bellows cover structure. The telescopic cover (23) is located between adjacent reciprocating slides (22) along the direction of the overflow channel (19). The telescopic cover (23) extends and retracts with the reciprocating slides (22) and always blocks the overflow water in the overflow channel (19).

8. The plasma arc cutting mechanism for galvanized sheet according to claim 5, characterized in that: It also includes a first fixed seat (321) on the reciprocating slide (22) and a second fixed seat (322) on the drive housing (2). The first fixed seat (321) has a reset pull rod (323) that slides along the second fixed seat (322) on one side. The reset pull rod (323) has a reset spring (324) that applies elastic extension and retraction reset to it. After the reciprocating displacement driving force of the reciprocating slide (22) disappears, the grid plate (3) is driven to move and reset.

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