Laser cutting cutting bed with flue gas treatment function

Abstract

The application relates to a laser cutting cutting bed with a smoke treatment function, which comprises a machine tool main body in a rectangular structure, a rectangular groove is arranged at the middle of the upper end of the machine tool main body, a workbench is installed in the rectangular groove, the workbench is used for supporting a material to be cut, a numerical control unit is installed at the upper end of the machine tool main body, a cutting unit is installed on the numerical control unit, the numerical control unit is used for driving the displacement of the cutting unit in the horizontal direction, the cutting unit is used for cutting the material to be cut and collecting and treating smoke dust generated in the cutting, linkage of a rotating mechanism and a cleaning mechanism is used for automatically disassembling a filter plate, high-pressure back blowing and impurity recovery, filter screen regeneration can be completed without stopping, the filter assembly can keep high permeability for a long time, and the efficiency decay problem caused by frequent blockage of traditional filter screens can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser cutting machine tools, in particular to a laser cutting machine tool with smoke treatment function. BACKGROUND

[0002] Laser cutting technology is widely used in the precision machining field of metal, plastic and other materials due to its advantages of high precision, high efficiency and non-contact processing. However, during the laser cutting process, high temperature will cause the material to vaporize or burn, generating a large amount of smoke containing harmful particulate matter (such as metal dust, volatile organic compounds). If these smoke is not effectively treated and directly dispersed into the workshop environment, it will not only pollute the air and harm the health of the operators, but also may adhere to the internal equipment, affecting the service life of precision components such as laser cutting heads, and even causing equipment failure.

[0003] The Chinese patent with publication number CN 215091347 U and the name "laser cutting device with smoke treatment" can improve the adsorption effect by setting the smoke cooling block, adsorption hole plate group, smoke treatment box and exhaust fan, reduce the overflow of vaporized smoke, improve the health of workers, and is beneficial to the use of people. The entire laser cutting device with smoke treatment has simple structure and convenient operation.

[0004] The above-mentioned prior art has the following defects when sucking the plate: when the above-mentioned prior art processes the smoke generated by laser cutting, the cleaning device is only arranged on one side of the laser cutting head, so that the smoke adsorption treatment effect on the other side is poor, and the phenomenon of smoke overflow is easy to occur; secondly, a large amount of particulate debris and ultrafine dust are mixed in the smoke, and the traditional fixed filter screen needs to be frequently stopped for cleaning or replaced, which cannot automatically clean the filter screen, affecting the filtration and purification efficiency of the smoke; based on this, there is still room for improvement on the basis of the existing laser cutting machine tool with smoke treatment function. SUMMARY

[0005] In order to accurately realize the function of filtering and purifying the smoke generated during the cutting of the laser cutting machine tool, the present application provides a laser cutting machine tool with smoke treatment function.

[0006] The laser cutting machine tool with smoke treatment function provided by the present application adopts the following technical scheme:

[0007] The utility model provides a laser cutting cutting bed with smoke treatment function, including machine tool main part, it is rectangular structure, the middle part of machine tool main part upper end is provided with rectangular groove, the workbench is installed in rectangular groove inside, and the workbench is used for supporting the material to be cut, numerical control unit is installed on the upper end of machine tool main part, cutting unit is installed on numerical control unit, and numerical control unit is used for driving cutting unit displacement in horizontal direction, and cutting unit is used for cutting the material to be cut and collecting and processing the smoke dust generated by cutting.

[0008] The cutting unit includes a moving frame, a dust collecting frame, a smoke filtering assembly, a smoke purifying assembly, a lifting assembly, and a laser cutting head. The moving frame is installed in the middle part of the front end of the numerical control unit and has an L-shaped structure. A rectangular through slot is arranged inside the moving frame. A circular through hole is arranged at the lower end of the moving frame. The dust collecting frame is installed at the lower end of the moving frame. The smoke filtering assembly is installed at the lower end inside the rectangular through slot. The smoke purifying assembly is installed in the middle part inside the rectangular through slot. The lifting assembly is installed at the upper end inside the rectangular through slot. The laser cutting head is installed in the middle part of the lifting assembly. The laser cutting head passes through the middle part of the smoke filtering assembly and the smoke purifying assembly in sequence and reaches the lower end of the moving frame.

[0009] Further, the dust collecting frame has a rectangular structure. A conical through hole is arranged inside the dust collecting frame. The conical through hole is in communication with the circular through hole. A collecting pad is also installed in the middle part of the upper end of the dust collecting frame. The collecting pad has an annular rubber structure and extends into the circular through hole.

[0010] Further, the smoke filtering assembly includes an annular slide rail, a filtering frame, a filtering plate, a rotating mechanism, and a cleaning mechanism. The annular slide rails are symmetrically arranged inside the rectangular through slot. The annular slide rail at the lower end inside the rectangular through slot is installed on the moving frame. The annular slide rail at the upper end inside the rectangular through slot is installed at the lower end of the smoke purifying assembly. The filtering frame is installed between the two annular slide rails. The filtering frame has a circular ring structure. Filtering grooves are uniformly arranged on the outer side of the filtering frame. Air holes are uniformly arranged on the inner side of the filtering frame and are in communication with the filtering grooves. The filtering plate is installed at the outer end of the filtering groove. The rotating mechanism is installed at the lower end inside the moving frame. The cleaning mechanism is installed on the inner wall of the moving frame. The gap between the outer side of the filtering frame and the inner wall of the moving frame is an adsorption space.

[0011] Further, the filtering plate has a rectangular structure. The middle part of the filtering plate has a hollow structure. A filtering cloth bag is installed in the middle part of the filtering plate. The filtering cloth bag has a wavy shape. Inserting rods are uniformly installed on both sides of the filtering plate. The filtering plate is fixed on the filtering groove through the inserting rods. Unlocking holes are uniformly arranged on the outer side of the filtering plate.

[0012] Further, the rotating mechanism includes a rotating gear and an annular gear. The rotating gear is installed in the adsorption space through a bearing. The rotating gear is connected with the output shaft of the motor. The annular gear is installed on the outer side of the lower end of the filtering frame. The annular gear is engaged with the rotating gear.

[0013] Further, the cleaning mechanism comprises a cleaning frame, a telescopic air cylinder, a dismounting plate, a turnover plate and a collection rack, the cleaning frame is internally mounted in the moving frame, an installation slot is formed in the middle of the cleaning frame, the inner side surface of the cleaning frame is tightly attached to the outer side surface of the filter frame, the telescopic air cylinder is installed in the installation slot, the dismounting plate is installed at the end of the telescopic air cylinder, the dismounting plate is matched with the filter plate, the turnover plate is installed on the side wall of the installation slot through a pin shaft, the cross section of the turnover plate is in L-shaped structure, the collection area is formed on the both sides of the cleaning frame, the flexible rubber is installed between the inner side end of the turnover plate and the collection area, the turnover plate is in louver structure, and the collection rack is installed in the collection area.

[0014] Further, the dismounting plate is uniformly arranged with dismounting rods on the inner side surface, the cam disc is arranged at the end of the dismounting rod, and the dismounting rod is rotatably arranged.

[0015] Further, the smoke gas purification assembly comprises a fixed frame, a negative pressure fan and a purification filter screen, the fixed frame is internally and centrally mounted in the rectangular through slot, the fixed frame is in annular hollow structure, the annular slot is arranged in the middle of the fixed frame, the connecting holes communicated with the adsorption space are uniformly arranged at the lower end of the annular slot, the negative pressure fan is installed in the middle of the annular slot, and the purification filter screen is installed at the upper end of the annular slot, the negative pressure fan is used for driving the filtered gas in the adsorption space to be discharged upwards through the purification filter screen.

[0016] Further, the flexible sealing gasket is installed between the middle of the fixed frame and the laser cutting head.

[0017] Further, the lifting assembly comprises a lifting frame, a connecting frame and a connecting rod, the lifting frame is installed at the upper end of the rectangular through slot, the lifting frame can move up and down along the length direction of the rectangular through slot, the connecting frame is arranged in the middle of the lifting frame, and the connecting rod is uniformly installed between the connecting frame and the lifting frame, the upper end of the laser cutting head is fixedly installed in the connecting frame.

[0018] Advantages

[0019] Compared with the prior art, the laser cutting cutting bed with smoke gas treatment function has the following advantages:

[0020] 1. The negative pressure fan and the conical through hole of the dust collection rack cooperate to form a directional negative pressure adsorption area near the cutting point, realize the instant capture and rapid flow guiding of smoke dust, and the flexible sealing gasket dynamically seals the laser cutting head and the smoke gas purification assembly, effectively prevents smoke dust from escaping, and improves the air quality in the workshop.

[0021] 2. The application adopts a rotating filter frame and a wave-shaped filter bag to filter flue gas, so that the particulate matter can be accurately intercepted; through linkage of the rotating mechanism and the cleaning mechanism, automatic disassembly, high-pressure back blowing and impurity recovery of the filter plate are realized, so that filter screen regeneration can be completed without stopping the machine, the filter assembly maintains high permeability for a long time, and the problem of efficiency decay caused by frequent blockage of traditional filter screens is avoided.

[0022] 3. The application solves the defects of traditional laser cutting, such as smoke dust processing lag, low-efficiency filter screen maintenance and harmful gas residue, through a full-process closed-loop design of "cutting-adsorption-filtration-purification-self-cleaning", improves processing precision, realizes production environmentalization, operation intelligentization and cost intensification, and is suitable for high-standard precision manufacturing scenes. BRIEF DESCRIPTION OF DRAWINGS

[0023] The application will be further described below in combination with the drawings and examples.

[0024] Figure 1 is a perspective structural schematic diagram of the application.

[0025] Figure 2 is a perspective structural schematic diagram of the cutting unit of the application.

[0026] Figure 3 is a cutaway structural schematic diagram of the cutting unit of the application.

[0027] Figure 4 is a first cutaway structural schematic diagram of the cutting unit of the application.

[0028] Figure 5 is a second cutaway structural schematic diagram of the cutting unit of the application.

[0029] Figure 6 is a cutaway structural schematic diagram between the dust collecting frame, the flue gas filtering assembly and the flue gas purification assembly of the application.

[0030] Figure 7 is a perspective structural schematic diagram of the flue gas filtering assembly of the application.

[0031] Figure 8 is a cutaway structural schematic diagram of the flue gas filtering assembly of the application.

[0032] Figure 9 is a cutaway structural schematic diagram of the filter plate of the application.

[0033] Figure 10 is a perspective structural schematic diagram of the cleaning mechanism of the application.

[0034] Figure 11 is a cutaway structural schematic diagram of the cleaning mechanism of the application.

[0035] Explanation of reference signs: 1, machine tool main body; 2, workbench; 3, numerical control unit; 31, transverse electric sliding rail; 32, mounting seat; 33, cross beam frame; 34, longitudinal electric sliding rail; 4, cutting unit; 41, moving frame; 42, dust collecting frame; 421, collecting pad; 43, flue gas filtering assembly; 431, annular sliding rail; 432, filtering frame; 433, filter plate; 434, rotating mechanism; 4341, rotating gear; 4342, annular gear; 435, cleaning mechanism; 4351, cleaning frame; 4352, telescopic air cylinder; 4353, dismounting plate; 4354, turnover plate; 4355, collecting frame; 44, flue gas purification assembly; 441, fixing frame; 442, negative pressure fan; 443, purification filter screen; 45, lifting assembly; 451, lifting frame; 452, connecting frame; 453, connecting rod; 46, laser cutting head; 461, flexible sealing pad. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0037] Please refer to Figures 1-11 The laser cutting machine provided in the embodiment of the present application has a flue gas treatment function, comprising a bottom machine tool main body 1, which is in a rectangular structure, and a rectangular groove is arranged at the middle of the upper end of the machine tool main body 1; a workbench 2 is arranged inside the rectangular groove, and the workbench 2 is used for supporting the material to be cut; a numerical control unit 3 is arranged at the upper end of the machine tool main body 1; a cutting unit 4 is arranged on the numerical control unit 3, the numerical control unit 3 is used for driving the displacement of the cutting unit 4 in the horizontal direction, and the cutting unit 4 is used for cutting the material to be cut and collecting and treating the smoke dust generated in the cutting.

[0038] The numerical control unit 3 comprises a transverse electric sliding rail 31, a mounting seat 32, a cross beam frame 33 and a longitudinal electric sliding rail 34, the machine tool main body 1 is symmetrically provided with the transverse electric sliding rail 31 at the upper end, the mounting seat 32 is arranged at the upper end of the transverse electric sliding rail 31, the cross beam frame 33 is fixedly arranged between the upper ends of the two mounting seats 32, the longitudinal electric sliding rail 34 is arranged at the front end of the cross beam frame 33, the cutting unit 4 is arranged on the cross beam frame 33, and the cutting unit 4 is connected with the longitudinal electric sliding rail 34 at the inner side.

[0039] In the above technical solution, the transverse electric sliding rail 31 and the longitudinal electric sliding rail 34 can drive the cutting unit 4 to move arbitrarily in the horizontal plane, the cutting unit 4 can accurately cut the material to be cut by means of laser cutting, and the cutting unit 4 can collect and treat the flue gas generated in the cutting, thereby avoiding the influence of the flue gas overflow on the air environment in the workshop.

[0040] Please refer to Figures 2-5As shown, the cutting unit 4 includes a moving frame 41, a dust collecting frame 42, a flue gas filtering assembly 43, a flue gas purification assembly 44, a lifting assembly 45, and a laser cutting head 46, the moving frame 41 is installed in the middle of the front end of the numerical control unit 3, the moving frame 41 is in an L-shaped structure, a rectangular through slot is arranged inside the moving frame 41, a circular through hole is arranged at the lower end of the moving frame 41, the dust collecting frame 42 is installed at the lower end of the moving frame 41, the flue gas filtering assembly 43 is installed at the lower end inside the rectangular through slot, the flue gas purification assembly 44 is installed at the middle inside the rectangular through slot, the lifting assembly 45 is installed at the upper end inside the rectangular through slot, and the laser cutting head 46 is installed at the middle of the lifting assembly 45. The laser cutting head 46 passes through the middle of the flue gas filtering assembly 43 and the flue gas purification assembly 44 in sequence to reach the lower end of the moving frame 41.

[0041] In the above technical solution, the laser cutting head 46 is used for laser cutting of the material to be cut, the height of the laser cutting head 46 can be adjusted through the lifting assembly 45, the flue gas generated by the laser cutting head 46 is negatively absorbed and filtered through the flue gas filtering assembly 43, the filtered gas is further treated through the flue gas purification assembly 44, so that the discharged gas meets the discharge standard, the dust collecting frame 42 can guide the flue gas, and the large-particle dust that does not enter the inside of the filtering assembly 43 falls on the upper end of the dust collecting frame 42, so that the dust collecting frame 42 can collect the dust to avoid secondary diffusion of the dust.

[0042] A sealing plate is installed at the upper end of the rectangular through slot of the moving frame 41, a circular hole is formed in the middle of the sealing plate, and the gas filtered and treated through the flue gas filtering assembly 43 and the flue gas purification assembly 44 is discharged outward through the circular hole in the middle of the sealing plate.

[0043] Referring to Figures 5-6 As a preferred technical solution of the embodiment, the dust collecting frame 42 is in a rectangular structure, a conical through hole is arranged inside the dust collecting frame 42, the conical through hole is in communication with the circular through hole, and a collecting pad 421 is further installed at the middle of the upper end of the dust collecting frame 42, the collecting pad 421 is in an annular rubber structure, and the collecting pad 421 extends into the inside of the circular through hole.

[0044] In the above technical solution, when flue gas is generated by cutting, the flue gas enters the inside of the flue gas filtering assembly 43 through the conical through hole under the action of negative pressure, and at the same time, since there are a large number of particle debris inside the flue gas, the particle debris that does not enter the inside of the flue gas filtering assembly 43 falls downward into the inside of the collecting pad 421; after a long time, the dust collecting frame 42 can be disassembled to clean the collected particle impurities.

[0045] Referring to Figures 5-9As shown in the preferred technical solution of the present embodiment, the flue gas filtering assembly 43 comprises an annular sliding rail 431, a filtering frame 432, a filtering plate 433, a rotating mechanism 434 and a cleaning mechanism 435. The annular sliding rail 431 is symmetrically arranged inside the rectangular through slot, the annular sliding rail 431 at the lower end of the rectangular through slot is mounted on the moving frame 41, the annular sliding rail 431 at the upper end of the rectangular through slot is mounted on the lower end of the flue gas purification assembly 44, the filtering frame 432 is mounted between the two annular sliding rails 431, the filtering frame 432 has a circular ring structure, filtering grooves are uniformly arranged on the outer side of the filtering frame 432, air holes communicating with the filtering grooves are uniformly arranged on the inner side of the filtering frame 432, the filtering plate 433 is mounted at the outer end of the filtering groove, the rotating mechanism 434 is mounted at the lower end of the moving frame 41, the cleaning mechanism 435 is mounted on the inner wall of the moving frame 41, and the gap between the outer side of the filtering frame 432 and the inner wall of the moving frame 41 is an adsorption space.

[0046] In the above technical solution, when a negative pressure is generated in the adsorption space, the cutting generated flue gas enters the filtering groove through the air hole, the filtering plate 433 filters the flue gas, so that the particles in the flue gas are retained on the inner side of the filtering plate 433, and the filtered gas enters the adsorption space. At the same time, the rotating mechanism 434 can drive the filtering frame 432 to rotate intermittently, when one filtering plate 433 on the filtering frame 432 rotates to the inner side of the cleaning mechanism 435, the cleaning mechanism 435 first seals the outer side of the filtering plate 433, and then removes and takes out the filtering plate 433, so that the filtering plate 433 can move into the cleaning mechanism 435. The filtering plate 433 can be cleaned by back blowing, preventing impurities in the flue gas from accumulating on the inner side of the filtering plate 433 for a long time, and avoiding the phenomenon of clogging of the filtering plate 433.

[0047] When the cleaning of the filtering plate 433 in one filtering groove is completed, the rotating mechanism 434 drives the filtering frame 432 to rotate by a certain angle, so that the next filtering plate 433 on the filtering frame 432 rotates to the inner side of the cleaning mechanism 435. By repeating the above steps, the filtering plate 433 on the filtering frame 432 can be cleaned one by one, the filtering efficiency of the filtering plate 433 is improved, the permeability of the filtering plate 433 is ensured, and the phenomenon of flue gas overflow caused by delayed flue gas adsorption due to clogging of the filtering plate 433 is avoided.

[0048] As shown in 9, as the preferred technical solution of the present embodiment, the filtering plate 433 has a rectangular structure, the middle part of the filtering plate 433 is a hollow structure, a filtering cloth bag is mounted in the middle part of the filtering plate 433, the filtering cloth bag has a wave shape, a plurality of insertion rods are uniformly mounted on both sides of the filtering plate 433, the filtering plate 433 is fixed in the insertion hole of the filtering groove through the insertion rods, and a plurality of unlocking holes are uniformly arranged on the outer side of the filtering plate 433.

[0049] In the above technical scheme, the filter plate 433 is installed and fixed through the inserting rod, when negative pressure is generated inside the adsorption space, flue gas enters the filter groove through the air hole, the filter cloth bag in the middle of the filter plate 433 can filter the flue gas, so that the dust, particles and other impurities in the flue gas can stay on the inner side of the filter cloth bag, when the filter plate 433 needs to be cleaned, the inside of the cleaning mechanism 435 is inserted into the unlocking hole, the inserting rod is extruded and shrunk inward, so that the inserting rod is separated from the insertion hole, thereby the function of disassembling the filter plate 433 can be realized, and the filter plate 433 is convenient to clean.

[0050] The filter groove is also provided with a limiting frame, which is used for limiting and blocking the filter plate 433, when the disassembled filter plate 433 is installed, the limiting frame can block the filter plate 433, so that the inserting rod on the filter plate 433 can be accurately inserted into the insertion hole on the side wall of the filter groove.

[0051] Referring to Figures 4-7 As shown in the preferred technical scheme of the embodiment, the rotating mechanism 434 comprises a rotating gear 4341 and an annular gear 4342, the rotating gear 4341 is installed inside the adsorption space through a bearing, the rotating gear 4341 is connected with the output shaft of the motor, and the annular gear 4342 is installed outside the lower end of the filter frame 432 and is engaged with the rotating gear 4341.

[0052] In the above technical scheme, the motor can drive the rotating gear 4341 to rotate, the rotating gear 4341 drives the annular gear 4342 to rotate through the gear engagement, thereby the function of rotating and adjusting the filter frame 432 can be realized.

[0053] Referring to Figures 7-10 As shown in the preferred technical scheme of the embodiment, the cleaning mechanism 435 comprises a cleaning frame 4351, a telescopic air cylinder 4352, a disassembly plate 4353, a turnover plate 4354 and a collection frame 4355, the cleaning frame 4351 is installed inside the moving frame 41, the middle of the cleaning frame 4351 is provided with an installation groove, the inside of the cleaning frame 4351 is tightly attached to the outside of the filter frame 432, the telescopic air cylinder 4352 is installed in the installation groove, the end of the telescopic air cylinder 4352 is provided with the disassembly plate 4353, the disassembly plate 4353 is matched with the filter plate 433, the turnover plate 4354 is installed on the side wall of the installation groove through a pin shaft, the cross section of the turnover plate 4354 is in L-shaped structure, the both sides of the cleaning frame 4351 are provided with a collection area, the inside end of the turnover plate 4354 and the collection area are provided with flexible rubber, the turnover plate 4354 is in louver structure, and the collection frame 4355 is installed in the collection area.

[0054] Referring to Figure 10As shown in the preferred technical solution of the present embodiment, the inner side of the dismounting plate 4353 is uniformly provided with dismounting rods, and the end of the dismounting rod is provided with a cam disc, and the dismounting rod is rotatably arranged.

[0055] In the above technical solution, when it is necessary to dismount and clean the filter plate 433 inside the filter tank, the telescopic air cylinder 4352 drives the dismounting plate 4353 to move inward, so that the dismounting rods on the inner side of the dismounting plate 4353 can be inserted into the unlocking holes, the dismounting rods are rotatable, and the rotation of the cam disc at the end of the dismounting rod can press the insertion rod, so that the insertion rod can be separated from the insertion hole, thereby achieving the purpose of dismounting the filter plate 433. Then, the telescopic air cylinder 4352 drives the dismounting plate 4353 to retract into the inside of the mounting groove, and the filter plate 433 will be synchronized into the inside of the mounting groove, and the dismounting plate 4353 will press the turnover plate 4354 when retracted, so that the turnover plate 4354 will turn inward, and the flexible rubber will be deformed when the turnover plate 4354 turns, so that the mounting groove end will be closed when the two turnover plates 4354 turn inward synchronously.

[0056] The inner side of the dismounting plate 4353 is uniformly provided with spray holes, and when it is necessary to clean the filter plate 433, high-pressure gas is generated through the spray holes, which can blow back the filter plate 433, so that the dust, particles and other impurities adhered to the inner side of the filter plate 433 can be cleaned out, and the dust, particles and other impurities cleaned out enter the inside of the collecting frame 4355 through the turnover plate 4354 of the louver structure.

[0057] The collecting frame 4355 is detachably arranged, and the mounting hole matched with the collecting frame 4355 is formed in the side wall of the moving frame 41. When the collecting frame 4355 is used for a period of time, the collecting frame 4355 can be dismounted to clean and remove the collected dust, particles and other impurities.

[0058] Referring to Figures 5-6 As shown in the preferred technical solution of the present embodiment, the flue gas purification assembly 44 includes a fixing frame 441, a negative pressure fan 442 and a purification filter screen 443. The fixing frame 441 is installed in the middle of the rectangular through groove and has a ring-shaped hollow structure. The fixing frame 441 is provided with a ring-shaped groove in the middle, and the lower end of the ring-shaped groove is uniformly provided with a connecting hole in communication with the adsorption space. The negative pressure fan 442 is installed in the middle of the ring-shaped groove, and the purification filter screen 443 is installed at the upper end of the ring-shaped groove. The negative pressure fan 442 is used to drive the filtered gas in the adsorption space to be discharged upward through the purification filter screen 443, and the purification filter screen 443 is sequentially provided with an activated carbon layer and a membrane filter layer.

[0059] In the technical scheme, the high-speed rotation of the negative pressure fan 442 generates downward negative pressure suction force, so that the inside of the adsorption space is in a negative pressure state, facilitating upward movement of the filtered gas, and the upwardly moving gas is filtered and purified by the purification filter screen 443, harmful substances in the flue gas can be effectively removed through the active carbon layer and the membrane filter layer, and the flue gas purification effect is improved.

[0060] Referring to Figure 6 As shown in the preferred technical scheme of the embodiment, a flexible sealing gasket 461 is mounted between the middle part of the fixing frame 441 and the laser cutting head 46.

[0061] In the technical scheme, the flexible sealing gasket plays a role of sealing between the laser cutting head 46 and the flue gas purification assembly 44, preventing the flue gas from moving upward through the gap between the laser cutting head 46 and the flue gas purification assembly 44, ensuring that the flue gas can be completely filtered and purified, and the laser cutting head 46 needs to move up and down to adjust the height during laser cutting, so that when the lifting assembly 45 moves up and down, the flexible sealing gasket can effectively deform correspondingly, ensuring the sealing effect between the laser cutting head 46 and the flue gas purification assembly 44.

[0062] Referring to Figure 5 As shown in the preferred technical scheme of the embodiment, the lifting assembly 45 includes a lifting frame 451, a connecting frame 452 and a connecting rod 453, the lifting frame 451 is mounted at the upper end inside the rectangular through slot and can move up and down along the length direction of the rectangular through slot, the connecting frame 452 is arranged in the middle part of the lifting frame 451, the connecting rods 453 are uniformly mounted between the lifting frame 451 and the connecting frame 452, and the laser cutting head 46 is fixedly installed at the upper end inside the connecting frame 452.

[0063] In the technical scheme, the lifting frame 451 can drive the laser cutting head 46 to move up and down, so that the laser cutting head 46 can cut materials of different thicknesses.

[0064] In combination with the above structure, the laser cutting machine bed with flue gas treatment function according to the embodiment implements the following steps when cutting and processing the material to be cut:

[0065] S1: Material positioning and equipment starting

[0066] The material to be cut is placed on the workbench 2, and the cutting path parameters are set by the numerical control unit 3. After starting the equipment, the horizontal electric sliding rail 31 drives the mounting seat 32 to move horizontally along the machine tool body 1, drives the cross beam frame 33 and the vertical electric sliding rail 34 to move cooperatively, moves the cutting unit 4 to the initial processing position, adjusts the laser cutting head 46 to the preset height by the lifting assembly 45, and ensures the cutting precision.

[0067] S2: Laser cutting and synchronous fume adsorption

[0068] The laser cutting head 46 emits a high-energy laser beam to cut the material, while the negative pressure fan 442 is started to form a negative pressure in the adsorption space; the smoke dust and debris generated by cutting are guided into the fume filter assembly 43 through the conical through hole of the dust collection frame 42, and the large-particle debris falls on the collection pad 421 due to gravity to avoid diffusion; the fume enters the filter tank through the air holes, and the wave-shaped filter bag of the filter plate 433 intercepts the particulate impurities, and the gas after preliminary filtration enters the adsorption space.

[0069] S3: Automatic cleaning of filter plate and impurity recovery

[0070] The rotating mechanism 434 periodically drives the ring gear 4342 to drive the filter frame 432 to rotate intermittently, so that a single filter plate 433 is aligned with the cleaning mechanism 435; the extension cylinder 4352 pushes the disassembly plate 4353 to insert into the unlocking hole, the cam disc extrudes the insertion rod to unlock the filter plate 433; the disassembly plate 4353 withdraws to pull the filter plate 433 into the cleaning frame 4351, and the disassembly plate 4353 drives the turnover plate 4354 to seal the mounting groove, the high-pressure gas is back-flushed through the injection hole to clean the filter bag; the debris falls into the collection frame 4355 through the louver-shaped turnover plate 4354, and the cleaned filter plate 433 is reassembled into the filter tank, and the limiting frame ensures accurate resetting of the insertion rod.

[0071] S4: Multi-stage purification and gas discharge

[0072] The gas after preliminary filtration enters the annular groove of the fume purification assembly 44 through the connecting hole, and the negative pressure fan 442 drives the gas to pass through the purification filter screen 443 upwards. The activated carbon layer adsorbs harmful gas, and the membrane filter layer intercepts superfine particles, and the finally purified gas is discharged through the top of the moving frame 41; the flexible sealing pad ensures the sealing property of the purification assembly 44 when the laser cutting head 46 is lifted, to prevent fume leakage.

[0073] S5: Cutting completion and maintenance operation

[0074] After cutting is completed, the numerical control unit 3 resets the cutting unit 4, the dust collection frame 42 is disassembled regularly to clean the debris on the collection pad 421, and the collection frame 4355 is taken out to handle the back-flushed impurities, the circulating cleaning mechanism of the filter frame 432 and the replaceable design of the purification filter screen 443 ensure the filtering efficiency and environmental protection compliance of long-term operation of the equipment.

[0075] The above describes certain exemplary embodiments of the present application in a manner of illustration only, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above figures and description are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A laser cutting and cutting bed having a smoke treatment function, characterized by, Include: Machine tool body (1), which is in a rectangular structure, the upper end of the machine tool body (1) is provided with a rectangular slot; Workbench (2), which is installed inside the rectangular slot, the workbench (2) is used for supporting the material to be cut; Numerical control unit (3), which is installed on the upper end of the machine tool body (1); Cutting unit (4), which is installed on the numerical control unit (3), the numerical control unit (3) is used for driving the displacement of the cutting unit (4) in the horizontal direction, the cutting unit (4) is used for cutting the material to be cut and collecting and processing the smoke dust generated by cutting; The cutting unit (4) includes a moving frame (41), a dust collecting frame (42), a smoke filtering assembly (43), a smoke purifying assembly (44), a lifting assembly (45) and a laser cutting head (46), the moving frame (41) is installed in the front end of the numerical control unit (3), the moving frame (41) is in an L-shaped structure, the moving frame (41) is provided with a rectangular through slot inside, the moving frame (41) is provided with a circular through hole at the lower end, the moving frame (41) is installed with the dust collecting frame (42) at the lower end, the rectangular through slot is installed with the smoke filtering assembly (43) at the lower end inside, the rectangular through slot is installed with the smoke purifying assembly (44) at the middle inside, the rectangular through slot is installed with the lifting assembly (45) at the upper end inside, the lifting assembly (45) is installed with the laser cutting head (46) at the middle, the laser cutting head (46) passes through the middle of the smoke filtering assembly (43) and the smoke purifying assembly (44) in turn to reach the lower end of the moving frame (41); The smoke filtering assembly (43) includes an annular slide rail (431), a filter frame (432), a filter plate (433), a rotating mechanism (434) and a cleaning mechanism (435), the rectangular through slot is symmetrically provided with an annular slide rail (431) inside, the annular slide rail (431) at the lower end of the rectangular through slot is installed on the moving frame (41), the annular slide rail (431) at the upper end of the rectangular through slot is installed at the lower end of the smoke purifying assembly (44), the filter frame (432) is installed between the two annular slide rails (431), the filter frame (432) is in a circular ring structure, the filter frame (432) is uniformly provided with a filter groove on the outer side, the filter frame (432) is uniformly provided with an air hole on the inner side which communicates with the filter groove, the filter plate (433) is installed at the outer end of the filter groove, the rotating mechanism (434) is installed at the lower end of the moving frame (41) inside, the cleaning mechanism (435) is installed on the inner wall of the moving frame (41), the gap between the outer side of the filter frame (432) and the inner wall of the moving frame (41) is an adsorption space; The cleaning mechanism (435) comprises a cleaning frame (4351), a telescopic air cylinder (4352), a dismounting plate (4353), a turnover plate (4354) and a collecting rack (4355), the moving frame (41) is internally provided with the cleaning frame (4351), a mounting groove is formed in the middle of the cleaning frame (4351), the inner side surface of the cleaning frame (4351) is tightly attached to the outer side surface of the filter frame (432), the telescopic air cylinder (4352) is mounted in the mounting groove, the dismounting plate (4353) is mounted at the end of the telescopic air cylinder (4352), the dismounting plate (4353) is matched with the filter plate (433), the turnover plate (4354) is mounted on the side wall of the mounting groove through a pin shaft, the cross section of the turnover plate (4354) is in L-shaped structure, the collecting area is formed on the both sides of the cleaning frame (4351), the flexible rubber is mounted between the inner side end of the turnover plate (4354) and the collecting area, the turnover plate (4354) is in louver structure, and the collecting rack (4355) is mounted in the collecting area.

2. The laser cutting and cutting bed with a smoke treatment function according to claim 1, characterized in that, The dust collecting frame (42) is in rectangular structure, a conical through hole is arranged in the dust collecting frame (42), the conical through hole is communicated with the circular through hole, and a collecting pad (421) is further mounted on the upper middle part of the dust collecting frame (42), the collecting pad (421) is in annular rubber structure, and the collecting pad (421) extends into the circular through hole.

3. The laser cutting and cutting bed with a smoke treatment function according to claim 1, characterized in that, The filter plate (433) is in rectangular structure, the middle part of the filter plate (433) is in hollow structure, a filter cloth bag is mounted in the middle part of the filter plate (433), the filter cloth bag is arranged in wave shape, the plug rods are uniformly mounted on the both sides of the filter plate (433), the filter plate (433) is fixed on the filter groove through plug connection of the plug rods, and the unlocking holes are uniformly arranged on the outer side surface of the filter plate (433).

4. The laser cutting and cutting bed with a smoke treatment function according to claim 1, characterized in that, The rotating mechanism (434) comprises a rotating gear (4341) and an annular gear (4342), the rotating gear (4341) is mounted in the adsorption space through a bearing, the rotating gear (4341) is connected with the output shaft of the motor, and the annular gear (4342) is mounted on the outer side of the lower end of the filter frame (432) and is engaged with the rotating gear (4341).

5. The laser cutting and cutting bed with a smoke treatment function according to claim 1, characterized in that, The inner side surface of the dismounting plate (4353) is uniformly provided with the dismounting rods, the end of the dismounting rod is provided with a cam disc, and the dismounting rod is rotatably arranged.

6. The laser cutting and cutting bed with a smoke treatment function according to claim 1, characterized in that, The smoke gas purification assembly (44) comprises a fixing frame (441), a negative pressure fan (442) and a purification filter screen (443), the rectangular through groove is internally provided with the fixing frame (441) in the middle part, the fixing frame (441) is in annular hollow structure, the annular groove is arranged in the middle part of the fixing frame (441), the connecting holes communicated with the adsorption space are uniformly arranged on the lower end of the annular groove, the negative pressure fan (442) is mounted in the annular groove, and the purification filter screen (443) is mounted on the inner upper end of the annular groove.

7. The laser cutting and cutting bed with a smoke treatment function according to claim 6, characterized in that, The flexible sealing gasket (461) is mounted between the middle part of the fixing frame (441) and the laser cutting head (46).

8. The laser cutting and cutting bed with a smoke treatment function according to claim 1, characterized in that, The lifting assembly (45) comprises a lifting frame (451), a connecting frame (452) and a connecting rod (453), the rectangular through slot is internally provided with the lifting frame (451) at the upper end, the lifting frame (451) can move up and down along the length direction of the rectangular through slot, the connecting frame (452) is arranged in the middle of the lifting frame (451), and the connecting rod (453) is uniformly arranged between the lifting frame (451) and the connecting frame (452), and the upper end of the laser cutting head (46) is fixedly installed in the connecting frame (452).

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