Filter screen laser cutting machine and cutting system thereof

Abstract

The invention discloses a filter screen laser cutting machine and a cutting system thereof, and particularly relates to the technical field of cutting equipment.The filter screen laser cutting machine comprises a base, a supporting net is arranged at the upper end of the base, the filter screen laser cutting machine further comprises a moving part and a pressing part, the moving part comprises a longitudinal moving assembly and a transverse moving assembly, and a laser cutting head is arranged at the front end of the transverse moving assembly; a rotating cylinder is rotatably connected to the outer portion of the fixing cylinder, a rotating ring is horizontally and slidably connected to the lower portion of the rotating cylinder, a pressing plate is rotatably connected to the lower end of the rotating ring, a receding groove is formed in the front portion of the pressing plate, and a plurality of pressing assemblies evenly distributed in the circumferential direction of the rotating cylinder are arranged on the lower portion of the laser cutting head. The central part and the edge part of the filter screen cutting piece can be attached to the supporting net, so that the edge of the cutting piece is prevented from being upwarped, the precision of the laser cutting machine is improved, and the cutting speed of the filter screen is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting equipment, and more specifically, to a filter screen laser cutting machine and a cutting system thereof. Background Art

[0002] The working principle of the laser cutting machine is to guide the high-power laser output and use laser optics and computer numerical control technology to guide the laser beam to irradiate the surface of the workpiece. After the laser beam is irradiated on the material, it will make the material reach the melting point or boiling point, and at the same time, the high-pressure gas coaxial with the beam will blow away the melted or vaporized material. As the relative position of the beam and the workpiece moves, the material will eventually form a slit, thereby achieving the purpose of cutting. The filter laser cutting machine is a laser device specially used for cutting filter materials. The positioning accuracy and repeatability of the laser cutting machine are very high, which can ensure the accuracy and consistency of cutting. The filter cutting machine is widely used in industries that require high-precision cutting of filter materials, such as: air purification, water treatment, food processing, automobile manufacturing, machinery manufacturing and other industries.

[0003] When using an existing laser cutting machine, the staff directly lays the filter material flat on the machine bed, and then places a heavy object on the edge of the filter material to press the entire filter material, making the edge of the filter material smoother. However, there is a lack of a special structure for pressing the cutting part, and the cut of the filter cut piece is prone to warping up. In addition, the shape of the cut filter is not fixed, and it is difficult for the staff to press the cut filter, resulting in a decrease in the cutting accuracy of the laser cutting machine, affecting the size and shape accuracy of the cut piece, especially when cutting thinner or softer filters. It may cause the cutting speed to slow down, and even require multiple cuts to achieve the desired cutting effect. The movement or instability of the material during the cutting process may also cause the mechanical parts of the laser cutting machine to bear additional loads and wear, shortening the service life of the equipment and increasing maintenance costs.

[0004] To this end, the present invention proposes a filter screen laser cutting machine and a cutting system thereof to solve the above problems. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a filter laser cutting machine and a cutting system thereof, which solves the problems raised in the above-mentioned background technology by providing a pressing part.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filter screen laser cutting machine, comprising: a base, an opening is arranged at the upper end of the base, a support net is arranged at the opening at the upper end of the base, and the support net is used to support the raw material of the filter screen; a moving part, the moving part comprises a longitudinal moving component and a transverse moving component, the left and right ends of the transverse moving component are respectively connected to the longitudinal moving component, a laser cutting head is arranged at the front end of the transverse moving component, the laser cutting head can be extended and retracted up and down, the head of the laser cutting head faces downward and is located directly above the support net; a pressing part, the pressing part comprises a pressing part sleeved on the laser cutting A fixed cylinder is arranged outside the head and in the vertical direction, and a rotating cylinder is rotatably connected to the outside of the fixed cylinder, and a rotating ring is horizontally slidably connected to the bottom of the rotating cylinder and in the vertical direction, and a pressing plate is rotatably connected to the lower end of the rotating ring, and a clearance groove capable of accommodating the laser cutting head is provided at the front of the pressing plate, and a notch corresponding to the clearance groove is provided at the front end of the rotating ring, and a plurality of pressing components evenly distributed along the circumferential direction of the rotating cylinder are provided at the lower part of the laser cutting head; when the rotating cylinder rotates along the fixed cylinder, the rotating cylinder can sequentially drive the plurality of pressing components to approach the supporting net, thereby pressing the filter net raw material on the supporting net during the cutting process.

[0007] Preferably, the longitudinal moving component includes two longitudinal guide rails symmetrically arranged on the base and in the front-to-back direction, the longitudinal guide rails are provided with a longitudinal moving piece, the longitudinal moving piece is provided with a longitudinal drive motor, and the longitudinal drive motor is used to drive the longitudinal moving piece to move along the longitudinal guide rails; the transverse moving component includes a transverse guide rail arranged between the two longitudinal moving pieces, the transverse guide rail is provided with a transverse moving piece, the transverse moving piece is provided with a transverse drive motor, and the transverse drive motor is used to drive the transverse moving piece to move along the transverse guide rail.

[0008] Preferably, the pressing assembly includes an outer cylinder fixedly connected to the laser cutting head and with an opening facing downward, an inner cylinder vertically slidingly connected to the outer cylinder, a horizontal rotating rod rotatably connected to the inner cylinder, a driving mechanism is provided inside the outer cylinder, the driving mechanism is used to drive the rotating rod to rotate, a magnetic mother block is provided in the middle of the rotating rod, a shielding cylinder with an opening facing downward is provided at the lower part of the outer cylinder, the lower part of the shielding cylinder is a cone with a small upper part and a large lower part, a magnetic sub-block is provided in the shielding cylinder, the shielding cylinder is used to separate the magnetic sub-block from the magnetic mother block, the magnetic poles of the magnetic sub-block and the upper and lower parts of the magnetic mother block are opposite, and in the initial state, the magnetic sub-block and the magnetic mother block are in a state of mutual attraction.

[0009] Preferably, the driving mechanism includes a rocker arm fixedly connected to the rotating rod in the up and down directions, and steering columns in the front and rear axial directions are provided at the upper and lower ends of the rocker arm. A fixing plate on the same side as the rocker arm is provided in the outer cylinder, and a guide groove in the up and down directions is opened in the middle of the fixing plate. A baffle rod located above the fixing plate is provided in the outer cylinder, and the baffle rod is horizontal on the right part and inclined with the left part lower than the right part, when the steering column on the upper side is located below the baffle rod, the steering column on the lower side is located in the guide groove, and when the steering column on the upper side contacts the inclined part of the baffle rod, the steering column on the lower side moves out of the guide groove.

[0010] Preferably, a pull plate is provided at the upper end of the inner cylinder, the upper part of the pull plate is vertically slidably connected to the outer cylinder, a roller is rotatably connected to the pull plate, a connecting plate is provided on the outside of the rotating cylinder, a top block is provided at the free end of the connecting plate under the rotating cylinder, the upper end of the top block is high in the middle and low on both sides, and the roller can roll along the upper end surface of the top block.

[0011] Preferably, two connecting columns in the front-to-rear direction are symmetrically arranged at the rear end of the rotating cylinder, and sleeves corresponding to the connecting columns are symmetrically arranged at the rear end of the rotating ring. The sleeves are slidingly connected to the connecting columns, and a baffle is provided between the free ends of the two connecting columns to prevent the sleeves from separating from the connecting columns.

[0012] Preferably, a V-shaped notch is provided on the upper end of the fixing plate, and two return springs in the upper and lower directions are symmetrically provided in the outer cylinder, one end of the return spring is fixedly connected to the upper end of the inner cylinder, and the other end is fixedly connected to the top of the outer cylinder, and the return spring always keeps the inner cylinder away from the upper part of the outer cylinder.

[0013] Preferably, the lower end of the pressing plate is provided with a plurality of insert blocks distributed in an array along the lower end surface thereof, and the insert blocks are used to prevent the pressing plate from translating during the cutting process.

[0014] Preferably, the support net is made of a metal material that can attract the magnetic attractor block.

[0015] The present invention also provides a filter screen laser cutting system, which adopts the filter screen laser cutting machine as described above, and also includes: a clamping mechanism, which is installed on a base and is used to clamp the four sides of the filter screen raw material to prevent the filter screen raw material from shifting.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The pressing plate moves downward with the laser cutting head, and the pressing plate can apply downward pressure to the center of the filter cut piece, so that the center of the filter cut piece fits more closely with the support net. When the pressing part moves with the laser cutting head, the multiple magnetic blocks in the pressing part can be separated from the magnetic mother block in turn and adsorbed on the support net, so that the edge of the just-cut filter cut piece is pressed onto the support net to avoid the edge of the filter cut piece from warping up, thereby improving the accuracy of the laser cutting machine. A cut piece that meets the size and shape accuracy standards can be cut in one cut, and the expected cutting effect can be achieved without multiple cuts, which speeds up the filter cutting speed. After the cutting is completed, the laser cutting head can automatically retract all the magnetic blocks by walking an empty circle along the closed graphic trajectory, so that the magnetic blocks can be reused without manual intervention.

[0018] 2. Through the provided sleeve and connecting column, when the laser cutting head moves to any position around the pressing plate, a stable downward pressure can be applied to the pressing plate, so that the pressing plate and the filter raw material always keep a close fit. Multiple pressing parts are evenly arranged around the laser cutting head, so that when the laser cutting head is cutting filter cutting pieces of different shapes, the laser cutting head can start working whenever it rotates a certain angle around the pressing plate, and the magnetic attraction block at the current position is ejected, so that it is adsorbed on the support net and presses the edge of the cutting piece at the current position. Any closed shape of cutting pieces can be applied, which increases the use range of the laser cutting machine, and multiple magnetic attraction blocks are evenly distributed along the trajectory of the edge of the cutting piece, so the pressing effect is better.

[0019] 3. Through the V-shaped notch set on the fixed plate, when the upper and lower positions of the two guide columns are interchanged, the two guide columns move downward with the rocker arm. Even if the positions of the two guide columns are deflected to a certain extent, the lower guide column will contact the inclined edge of the V-shaped notch, so that the lower guide column can smoothly enter the guide groove. The V-shaped notch can correct the deviation of the guide column to avoid affecting the use of the pressing part. By setting a reset spring between the inner cylinder and the outer cylinder, the inner cylinder always has a tendency to move downward, so that the roller and the upper end surface of the top block are always kept in contact during the pressing process, so that the inner cylinder and the roller can move downward more smoothly.

[0020] 4. By setting a plurality of plug-ins at the lower end of the pressing plate, when the lower end surface of the pressing plate contacts the raw material of the filter screen, the plurality of plug-ins at the lower end of the pressing plate can be inserted into the holes on the filter screen, thereby preventing the pressing plate from making a small displacement on the filter screen during the cutting process, and fixing the relative position of the laser head when it returns to the initial position. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2It is a top view of the overall structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the structure of the moving part of the present invention.

[0024] Figure 4 It is a schematic diagram of the pressing part structure of the present invention.

[0025] Figure 5 It is a left-side cutaway schematic diagram of the pressing portion of the present invention.

[0026] Figure 6 It is an exploded view of the pressing portion of the present invention.

[0027] Figure 7 It is a front view cutaway schematic diagram of the pressing portion of the present invention.

[0028] Figure 8 It is a cross-sectional schematic diagram of the pressing assembly of the present invention.

[0029] Fig. 9 Schematic diagram of the driving mechanism of the present invention.

[0030] Fig.10 It is a bottom view of the pressing portion of the present invention.

[0031] The accompanying drawings are marked as follows:

[0032] 1. Base;

[0033] 11. Support net;

[0034] 2. Mobile unit;

[0035] 21. Vertically move components;

[0036] 211, longitudinal guide rail; 212, longitudinal moving member; 213, longitudinal driving motor;

[0037] 22. Lateral movement component;

[0038] 221, transverse guide rail; 222, transverse moving member; 223, transverse driving motor;

[0039] 23. Laser cutting head;

[0040] 3. Pressing part;

[0041] 31. Fixed cylinder; 32. Rotating cylinder; 33. Rotating ring; 34. Pressing plate; 35. Giving way groove;

[0042] 36. Pressing assembly;

[0043] 361, outer cylinder; 362, inner cylinder; 363, rotating rod; 364, magnetic mother block; 365, shielding cylinder; 366, magnetic child block;

[0044] 37. Driving mechanism;

[0045] 371, swing rod; 372, steering column; 373, fixing plate; 374, guide groove; 375, stop rod;

[0046] 38, pull plate; 39, roller; 310, connecting plate; 311, top block;

[0047] 4. Return spring;

[0048] 5. Connecting column;

[0049] 6. Sleeve;

[0050] 7. Baffle;

[0051] 8. Insert the block. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Embodiment 1

[0054] In the actual production process, the staff directly spreads the raw material of the filter mesh flat on the machine bed, and then places heavy objects on the edge of the raw material of the filter mesh to press the entire filter mesh material to make the edge of the filter mesh material smoother. However, due to the lack of a special structure for pressing the cutting part, the cut part of the cutting part is prone to warping up, and the shape of the cut filter mesh is not fixed, it may be round, square or other shapes, it is difficult for the staff to press the cut filter mesh, resulting in a decrease in the cutting accuracy of the laser cutting machine, affecting the size and shape accuracy of the cut piece, especially when cutting thinner or softer filters, which may cause the cutting speed to slow down, and even require multiple cuts to achieve the desired cutting effect. This embodiment is specially invented to solve the above problems.

[0055] See also Figures 1 to 3 As shown, the present invention proposes a filter screen laser cutting machine comprising a base 1 , a moving part 2 and a pressing part 3 .

[0056] See also Figure 1 and Figure 2 As shown, a base 1 is provided with an opening at the upper end of the base 1, and a support net 11 is provided at the opening at the upper end of the base 1, and the support net 11 is used to support the raw materials of the filter net.

[0057] See also Figures 1 to 3 As shown, the moving part 2 includes a longitudinal moving component 21 and a transverse moving component 22. The left and right ends of the transverse moving component 22 are respectively connected to the longitudinal moving component 21. The front end of the transverse moving component 22 is provided with a laser cutting head 23. The laser cutting head 23 can be extended up and down. The head of the laser cutting head 23 faces downward and is located directly above the supporting net 11. Figures 4 to 7 As shown, the pressing part 3 includes a fixed cylinder 31 which is sleeved on the outside of the laser cutting head 23 and is axially arranged in the upper and lower directions. A rotating cylinder 32 is rotatably connected to the outside of the fixed cylinder 31. A rotating ring 33 is horizontally slidably connected to the lower part of the rotating cylinder 32 and is axially arranged in the upper and lower directions. A pressing plate 34 is rotatably connected to the lower end of the rotating ring 33. A clearance groove 35 capable of accommodating the laser cutting head 23 is provided at the front part of the pressing plate 34. A notch corresponding to the clearance groove 35 is provided at the front end of the rotating ring 33. A plurality of pressing components 36 evenly distributed along the circumferential direction of the rotating cylinder 32 are provided at the lower part of the laser cutting head 23.

[0058] See also Figure 2 and Figure 3 As shown, the longitudinal moving component 21 includes two longitudinal guide rails 211 symmetrically arranged on the base 1 and in the front-to-back direction, the longitudinal guide rails 211 are provided with a longitudinal moving member 212, the longitudinal moving member 212 is provided with a longitudinal driving motor 213, and the longitudinal driving motor 213 is used to drive the longitudinal moving member 212 to move along the longitudinal guide rails 211; the transverse moving component 22 includes a transverse guide rail 221 arranged between the two longitudinal moving members 212, the transverse guide rail 221 is provided with a transverse moving member 222, the transverse moving member 222 is provided with a transverse driving motor 223, and the transverse driving motor 223 is used to drive the transverse moving member 222 to move along the transverse guide rail 221.

[0059] It should be noted that the longitudinal drive motor 213, the transverse drive motor 223 and the laser cutting head 23 that can be extended and retracted up and down belong to the prior art and will not be described in detail here.

[0060] See also Figures 4 to 7 As shown, the pressing assembly 36 includes an outer cylinder 361 fixedly connected to the laser cutting head 23 and with an opening facing downward, an inner cylinder 362 is vertically slidably connected inside the outer cylinder 361, and a horizontal rotating rod 363 is rotatably connected inside the inner cylinder 362. A driving mechanism 37 is provided inside the outer cylinder 361, and the driving mechanism 37 is used to drive the rotating rod 363 to rotate. A magnetic mother block 364 is provided in the middle of the rotating rod 363, and a shielding cylinder 365 with an opening facing downward is provided at the lower part of the outer cylinder 361. The lower part of the shielding cylinder 365 is a cone with a small upper part and a large lower part. A magnetic sub-block 366 is provided in the shielding cylinder 365, and the shielding cylinder 365 is used to separate the magnetic sub-block 366 from the magnetic mother block 364. The magnetic poles of the magnetic sub-block 366 and the magnetic mother block 364 are opposite. In the initial state, the magnetic sub-block 366 and the magnetic mother block 364 are in a mutually attractive state.

[0061] See also Figure 8 and Fig. 9 As shown, the driving mechanism 37 includes a rocker rod 371 fixedly connected to the rotating rod 363 and in the up and down directions, and steering columns 372 in the front and rear axial directions are provided at the upper and lower ends of the rocker rod 371. A fixing plate 373 on the same side as the rocker rod 371 is provided in the outer cylinder 361, and a guide groove 374 in the up and down directions is opened in the middle of the fixing plate 373. A blocking rod 375 located above the fixing plate 373 is provided in the outer cylinder 361, and the blocking rod 375 is horizontal on the right part and inclined with the left part lower than the right part. When the upper steering column 372 is located below the blocking rod 375, the lower steering column 372 is located in the guide groove 374. When the upper steering column 372 contacts the inclined part of the blocking rod 375, the lower steering column 372 moves out of the guide groove 374.

[0062] See also Figure 7 As shown, a pull plate 38 is provided at the upper end of the inner cylinder 362, and the upper part of the pull plate 38 is vertically slidably connected to the outer cylinder 361, and a roller 39 is rotatably connected to the pull plate 38. A connecting plate 310 is provided on the outside of the rotating cylinder 32, and a top block 311 located below the rotating cylinder 32 is provided at the free end of the connecting plate 310. The upper end of the top block 311 is in an eight-shaped shape, and the roller 39 can roll along the upper end surface of the top block 311.

[0063] See also Figure 5 and Figure 7 As shown, two connecting columns 5 in the front-to-rear direction are symmetrically arranged at the rear end of the rotating cylinder 32, and sleeves 6 corresponding to the connecting columns 5 are symmetrically arranged at the rear end of the rotating ring 33. The sleeves 6 are slidingly connected to the connecting columns 5, and a baffle 7 is provided between the free ends of the two connecting columns 5. The baffle 7 is used to prevent the sleeves 6 from separating from the connecting columns 5.

[0064] It should be noted that the connections between the fixed cylinder 31 and the rotating cylinder 32, between the sleeve 6 and the connecting column 5, and between the rotating ring 33 and the pressing plate 34 all adopt interference fit, that is, in the absence of external force, these components will not rotate or slide relative to each other.

[0065] When in use, in the initial state, the laser cutting head 23 is in a retracted state. At this time, the interval between the pressing plate 34 and the support net 11 is large, and each magnetic block 366 is in an initial state of mutual attraction with the corresponding magnetic mother block 364. The staff needs to first spread the filter net raw material flat on the support net 11. The support net 11 makes the filter net raw material spread horizontally, and use a clamping mechanism to press the edge of the filter net raw material. The clamping mechanism can use a long strip of heavy objects. The staff transfers the drawing file of the filter net cutting part to the laser cutting machine, and the laser cutting machine starts working.

[0066] It should be noted that the clamping mechanism is a prior art and is used to press the edge of the filter screen raw material, which will not be described in detail here.

[0067] The longitudinal driving motor 213 drives the longitudinal moving member 212 to move along the longitudinal guide rail 211 in the front-to-back direction. The two longitudinal moving members 212 jointly drive the transverse moving component 22 to move forward and backward. At the same time, the transverse driving motor 223 drives the transverse moving member 222 to move along the transverse guide rail 221 in the left-right direction. Therefore, the transverse moving member 222 drives the laser cutting head 23 to move in the front-to-back direction and in the left-to-right direction at the same time. The longitudinal moving component 21 and the transverse moving component 22 in the moving part 2 can adjust the position of the laser cutting head 23 in the horizontal plane. The shape of the filter cutting member is a closed figure, so that the head of the laser cutting head 23 is aligned with the center point of the closed figure.

[0068] Start the laser cutting head 23 to extend downward, adjust the position of the laser cutting head 23 in the vertical direction, so that the head of the laser cutting head 23 is close to the raw material of the filter screen. When the laser cutting head 23 extends downward, it will drive the fixed cylinder 31 to move downward, the fixed cylinder 31 drives the rotating cylinder 32 to move downward, the rotating cylinder 32 drives the two symmetrically distributed connecting columns 5 to move downward, the two connecting columns 5 drive the two sleeves 6 to move downward, and the two sleeves 6 jointly drive the rotating ring 33 to move downward. The two sets of connecting columns 5 and sleeves 6 make the rotating ring 33 more stable when moving up and down, and the rotating ring 33 drives the pressing plate 34 to move downward.

[0069] When the lower end surface of the pressing plate 34 is in close contact with the raw material of the filter screen, the laser cutting head 23 stops extending downward. At this time, the head of the laser cutting head 23 is maintained in a plane, and the longitudinal drive motor 213 is started. The longitudinal drive motor 213 drives the transverse moving assembly 22 and the laser cutting head 23 to move forward, while the lower end of the pressing plate 34 is stuck on the filter screen and cannot move. The laser cutting head 23 gradually moves out of the gap at the front end of the giving way groove 35 and the rotating ring 33, and the laser cutting head 23 drives the fixed cylinder 31 and the rotating cylinder 32 to move forward, and the rotating cylinder 32 drives The two connecting columns 5 move forward, and the rotating ring 33 and the pressing plate 34 are in a rotationally connected relationship. The sleeve 6 cannot move forward, so relative sliding occurs between the connecting column 5 and the sleeve 6, so that the laser cutting head 23 moves to the cutting position of the filter mesh cutting piece, and the laser of the laser cutting head 23 is turned on. The horizontal drive motor 223 and the longitudinal drive motor 213 jointly drive the laser cutting head 23 to move, so that the laser cutting head 23 moves clockwise along the closed graphic trajectory of the filter mesh cutting piece, and the laser emitted by the laser cutting head 23 begins to cut the filter mesh cutting piece.

[0070] The laser cutting head 23 can only move within the plane with the moving part 2 and cannot rotate by itself. The position of the laser cutting head 23 is offset relative to the pressing plate 34, and the fixed cylinder 31 fixedly connected to the laser cutting head 23 does not rotate either. The rotating cylinder 32 rotates clockwise relative to the fixed cylinder 31, and the rotating cylinder 32 drives the connecting column 5 and the sleeve 6 to rotate clockwise. The rotating ring 33 fixedly connected to the sleeve 6 begins to rotate clockwise around the center of the give way groove 35. That is to say, when the laser cutting head 23 is cutting, although the relative position of the laser cutting head 23 and the pressing plate 34 changes, the laser cutting head 23 always applies downward pressure to the pressing plate 34 through the connecting column 5 and the sleeve 6, so that the pressing plate 34 presses the middle part of the filter screen cutting piece onto the support net 11.

[0071] When the rotating cylinder 32 rotates clockwise, it will drive the connecting plate 310 to rotate clockwise, and the connecting plate 310 will drive the top block 311 to rotate clockwise, and the multiple pressing components 36 are evenly arranged along the circumferential direction of the rotating cylinder 32. The multiple pressing components 36 do not rotate, and the upper end of the top block 311 is in an eight-shaped shape. When the upper end of the top block 311 contacts the outer surface of the adjacent roller 39, the top block 311 will drive the roller 39 to move upward and then downward.

[0072] When the roller 39 moves upward, the roller 39 drives the pull plate 38 to move upward, the pull plate 38 drives the inner cylinder 362 to move upward, the inner cylinder 362 drives the rotating rod 363 to move upward, the rotating rod 363 drives the swing rod 371 and the two steering columns 372 to move upward, and the lower steering column 372 slides upward in the guide groove 374. At this time, the guide groove 374 and the lower steering column 372 can prevent the rotating rod 363 from rotating, and the lower end surface of the magnetic mother block 364 remains parallel to the upper end surface of the magnetic sub-block 366. The magnetic mother block 364 moves upward with the rotating rod 363, and the magnetic sub-block 366 is set in the shielding tube 365 and cannot move upward, and the magnetic sub-block 366 is gradually separated from the magnetic mother block 364.

[0073] Since the right part of the blocking rod 375 is horizontal and the left part is inclined with the left lower and the right higher, when the upper steering column 372 contacts the inclined part of the blocking rod 375, the lower steering column 372 moves out of the guide groove 374, and the upper steering column 372 begins to shift to the right, and the upper steering column 372 drives the swing rod 371 to swing clockwise, and the swing rod 371 drives the lower steering column 372 to swing clockwise. At the same time, the swing rod 371 drives the rotating rod 363 to rotate clockwise, and the rotating rod 363 drives the magnetic mother block 364 to swing. When the lower steering column 372 moves to above the blocking rod 375, the positive and negative poles of the magnetic mother block 364 change, and the magnetic mother block 364 and the magnetic child block 366 change from attracting each other to repelling each other.

[0074] The roller 39 drives the pull plate 38 to move downward, the pull plate 38 drives the inner cylinder 362 to move downward, the inner cylinder 362 drives the rotating rod 363 to move downward, the rotating rod 363 drives the swing rod 371 and the two steering columns 372 to move downward, the positions of the two steering columns 372 are reversed, and at the same time, the rotating rod 363 drives the magnetic mother block 364 to move downward, and the steering column 372 on the lower side re-enters the guide groove 374 to keep the magnetic mother block 364 horizontal, and the magnetic mother block 364 moves the magnetic sub-block 366 out of the shielding cylinder 365, and the magnetic sub-block 366 is adsorbed on the supporting net 11, and the edge of the filter screen cutting piece between the magnetic sub-block 366 and the supporting net 11 is clamped.

[0075] As the laser cutting head 23 moves and cuts along the trajectory of the closed figure, the top block 311 sequentially drives multiple rollers 39 to move upward and then downward, so that the multiple magnetic blocks 366 leave the shielding tube 365 and are adsorbed on the support net 11, and the multiple magnetic blocks 366 are evenly distributed along the trajectory of the closed figure, which can effectively suppress the edge part of the filter mesh cutting piece and prevent the filter mesh cutting piece from prying the edge and affecting the cutting accuracy.

[0076] When the laser cutting head 23 moves to the front of the pressing plate 34, the laser cutting head 23 cuts the filter mesh cutting piece off from the filter mesh raw material, turns off the laser of the laser cutting head 23, and moves the laser cutting head 23 along the trajectory of the closed figure again. This time the laser cutting head 23 can move quickly, and the top block 311 drives multiple rollers 39 to move upward and then downward in turn, so that the multiple magnetic mother blocks 364 are flipped again, and the magnetic mother block 364 and the magnetic sub-block 366 become mutually attracted again. The attraction between the magnetic mother block 364 and the magnetic sub-block 366 is greater than the attraction between the magnetic sub-block 366 and the support net 11, and the magnetic sub-block 366 re-enters the shielding tube 365, and the lower end of the shielding tube 365 is set to a cone with a small top and a large bottom, so that the magnetic sub-block 366 can enter the shielding tube 365 more smoothly.

[0077] When the laser cutting head 23 moves to the front of the pressing plate 34 again, the laser cutting head 23 moves backward, and the laser cutting head 23 drives the fixed cylinder 31 and the rotating cylinder 32 to move backward, and the rotating cylinder 32 drives the connecting column 5 to slide backward along the sleeve 6. When the laser cutting head 23 enters the clearance groove 35, the axis of the rotating cylinder 32 coincides with the axis of the rotating ring 33. At this time, the laser cutting head 23 is started to contract, and the laser cutting head 23 drives the pressing plate 34 to move upward, and the pressing plate 34 is separated from the raw material of the filter mesh. At this time, the staff can move the laser cutting head 23 to other positions of the raw material of the filter mesh for cutting.

[0078] Embodiment 2

[0079] In actual use, it is found that the guide groove 374 is set in the up and down direction, and the two steering columns 372 may be deflected to a certain extent after the up and down positions are interchanged, which makes it difficult for the steering column 372 to enter the guide groove 374 when moving downward, thereby causing a certain impact on the use of the pressing part 3. In addition, when the roller 39 rolls to the left at the highest point of the top block 311, the roller 39 cannot fit well with the upper surface of the top block 311, and the roller 39 drives the inner cylinder 362 to move downward smoothly. Further improvements are made on the basis of the above embodiments.

[0080] See also Figure 7 and Fig.10 As shown, a V-shaped notch is provided at the upper end of the fixing plate 373, and two return springs 4 are symmetrically provided in the upper and lower directions in the outer cylinder 361. One end of the return spring 4 is fixedly connected to the upper end of the inner cylinder 362, and the other end is fixedly connected to the top of the outer cylinder 361. The return spring 4 always keeps the inner cylinder 362 away from the upper part of the outer cylinder 361.

[0081] On the basis of the above embodiment, during use, after the two steering columns 372 are interchanged in upper and lower positions, the two steering columns 372 move downward along with the rocker arm 371, and a V-shaped notch is provided at the upper end of the fixing plate 373. Even if the two steering columns 372 are deflected to a certain extent, the lower steering column 372 will contact the inclined edge of the V-shaped notch, so that the lower steering column 372 can smoothly enter the guide groove 374. The V-shaped notch can correct the deviation of the steering column 372 to avoid affecting the use of the pressing part 3.

[0082] When the roller 39 is squeezed by the right part of the upper end of the top block 311 and moves upward, the roller 39 drives the pull plate 38 to move upward, and the pull plate 38 drives the inner cylinder 362 to move upward, and the return spring 4 between the upper end of the inner cylinder 362 and the top of the outer cylinder 361 is compressed. When the roller 39 moves to the left part of the upper end of the top block 311, the elastic force of the return spring 4 begins to drive the inner cylinder 362 to move downward, and the inner cylinder 362 drives the pull plate 38 to slide downward, and the pull plate 38 drives the roller 39 to move downward, so that the roller 39 fits against the left part of the upper end of the top block 311, so that the inner cylinder 362 and the roller 39 can move downward more smoothly.

[0083] Embodiment 3

[0084] In actual use, it was found that the force between the pressing plate 34 and the raw material of the filter screen is unstable. Sometimes the pressing plate 34 will have a small displacement on the filter screen, which will cause the relative position of the laser cutting head 23 and the pressing plate 34 to gradually change when returning to the initial position.

[0085] See also Fig.10 As shown, the lower end of the pressing plate 34 is provided with a plurality of inserting blocks 8 distributed in an array along the lower end surface thereof, and the inserting blocks 8 are used to prevent the pressing plate 34 from translating during the cutting process.

[0086] On the basis of the above embodiment, when in use, the pressing plate 34 moves downward with the laser cutting head 23. When the lower end surface of the pressing plate 34 contacts the raw material of the filter screen, the multiple plug-in blocks 8 at the lower end of the pressing plate 34 can be inserted into the holes on the filter screen, which can prevent the pressing plate 34 from making a small displacement on the filter screen during the cutting process, so that the relative position of the laser cutting head 23 when it returns to the initial position is fixed.

[0087] In summary, by moving the pressing plate 34 downward with the laser cutting head 23, the pressing plate 34 can apply downward pressure to the center of the filter mesh cut piece, so that the center of the filter mesh cut piece fits more closely with the support net 11. When the pressing portion 3 moves with the laser cutting head 23, the magnetic suction block 366 in the pressing portion 3 can be separated from the magnetic suction mother block 364 in turn and adsorbed on the support net 11, thereby pressing the edge of the filter mesh cut piece that has just been cut better onto the support net 11, avoiding the edge of the filter mesh cut piece from warping up, improving the accuracy of the laser cutting machine, and cutting once Cutting can make the size and shape accuracy of the cut piece more in line with the standard, and multiple cuttings are no longer required to achieve the expected cutting effect, which speeds up the cutting speed of the filter screen. The laser cutting head 23 can automatically retract all the magnetic attractor blocks 366 by moving once along the closed graphic trajectory, which is convenient for subsequent use. In addition, multiple pressing parts 3 are evenly distributed around the laser cutting head 23. Whenever the laser cutting head 23 rotates the rod 363 around the pressing plate 34 at a certain angle, the edge of the cut piece at the current position can be pressed. Cutting pieces of various shapes are applicable, which increases the scope of use of the laser cutting machine.

[0088] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A filter screen laser cutting machine, characterized in that: The filter screen laser cutting machine comprises: A base (1), wherein an opening is provided at the upper end of the base (1), and a support net (11) is provided at the opening at the upper end of the base (1), and the support net (11) is used to support raw materials of the filter net; A moving part (2), the moving part (2) comprising a longitudinal moving component (21) and a transverse moving component (22), the left and right ends of the transverse moving component (22) being respectively connected to the longitudinal moving component (21), the front end of the transverse moving component (22) being provided with a laser cutting head (23), the laser cutting head (23) being able to be extended and retracted up and down, the head of the laser cutting head (23) facing downward and being located directly above the supporting net (11); A pressing part (3), the pressing part (3) comprising a fixed cylinder (31) sleeved on the outside of the laser cutting head (23) and arranged in an up-and-down axial direction, the fixed cylinder (31) is rotatably connected to the outside with a rotating cylinder (32), a rotating ring (33) is horizontally slidably connected to the bottom of the rotating cylinder (32) and arranged in an up-and-down axial direction, a pressing plate (34) is rotatably connected to the lower end of the rotating ring (33), a recess (35) capable of accommodating the laser cutting head (23) is provided at the front of the pressing plate (34), a notch corresponding to the recess (35) is provided at the front end of the rotating ring (33), and a plurality of pressing components (36) evenly distributed along the circumferential direction of the rotating cylinder (32) are provided at the lower part of the laser cutting head (23); When the rotating cylinder (32) rotates along the fixed cylinder (31), the rotating cylinder (32) can sequentially drive a plurality of pressing assemblies (36) to approach the supporting net (11), thereby pressing the filter net raw material on the supporting net (11) during the cutting process.

2. The filter screen laser cutting machine according to claim 1, characterized in that: The longitudinal moving assembly (21) comprises two longitudinal guide rails (211) symmetrically arranged on the base (1) in the front-to-back direction, a longitudinal moving member (212) is provided on the longitudinal guide rails (211), a longitudinal driving motor (213) is provided on the longitudinal moving member (212), and the longitudinal driving motor (213) is used to drive the longitudinal moving member (212) to move along the longitudinal guide rails (211); The transverse moving assembly (22) comprises a transverse guide rail (221) arranged between the two longitudinal moving members (212); a transverse moving member (222) is arranged on the transverse guide rail (221); a transverse driving motor (223) is arranged on the transverse moving member (222); and the transverse driving motor (223) is used to drive the transverse moving member (222) to move along the transverse guide rail (221).

3. The filter screen laser cutting machine according to claim 2, characterized in that: The pressing assembly (36) comprises an outer cylinder (361) fixedly connected to the laser cutting head (23) and with its opening facing downwards, an inner cylinder (362) vertically slidably connected inside the outer cylinder (361), a horizontal rotating rod (363) rotatably connected inside the inner cylinder (362), a driving mechanism (37) is provided inside the outer cylinder (361), the driving mechanism (37) is used to drive the rotating rod (363) to rotate, a magnetic mother block (364) is provided in the middle of the rotating rod (363), and the outer cylinder (361) is provided with a magnetic mother block (364). A shielding tube (365) with an opening facing downward is provided at the lower part of (361), and the lower part of the shielding tube (365) is in the shape of a cone with a small upper part and a large lower part. A magnetic attractor block (366) is provided inside the shielding tube (365), and the shielding tube (365) is used to separate the magnetic attractor block (366) from the magnetic attractor mother block (364). The magnetic poles of the upper and lower parts of the magnetic attractor block (366) and the magnetic attractor mother block (364) are opposite. In the initial state, the magnetic attractor block (366) and the magnetic attractor mother block (364) are in a state of mutual attraction.

4. The filter screen laser cutting machine according to claim 3, characterized in that: The driving mechanism (37) comprises a swing rod (371) fixedly connected to the rotating rod (363) and extending in the up-down direction. The swing rod (371) is provided with a steering column (372) extending in the front-rear axial direction at both the upper and lower ends. The outer cylinder (361) is provided with a fixing plate (373) on the same side as the swing rod (371). A guide groove (374) extending in the up-down direction is provided in the middle of the fixing plate (373). The outer cylinder (361) is provided with a fixing plate (373) located on the same side as the swing rod (371). ) above the baffle rod (375), the baffle rod (375) is horizontal on the right side and inclined on the left side with the left side lower and the right side higher. When the steering column (372) on the upper side is located below the baffle rod (375), the steering column (372) on the lower side is located in the guide groove (374). When the steering column (372) on the upper side contacts the inclined portion of the baffle rod (375), the steering column (372) on the lower side moves out of the guide groove (374).

5. The filter screen laser cutting machine according to claim 4, characterized in that: A pull plate (38) is provided at the upper end of the inner cylinder (362), the upper part of the pull plate (38) is vertically slidably connected to the outer cylinder (361), a roller (39) is rotatably connected to the pull plate (38), a connecting plate (310) is provided outside the rotating cylinder (32), a top block (311) located below the rotating cylinder (32) is provided at the free end of the connecting plate (310), the upper end of the top block (311) is in an eight-shaped shape, and the roller (39) can roll along the upper end surface of the top block (311).

6. The filter screen laser cutting machine according to claim 5, characterized in that: The rear end of the rotating cylinder (32) is symmetrically provided with two connecting columns (5) in the front-rear direction, and the rear end of the rotating ring (33) is symmetrically provided with sleeves (6) corresponding to the connecting columns (5) one by one, and the sleeves (6) are slidably connected to the connecting columns (5). A baffle (7) is provided between the free ends of the two connecting columns (5), and the baffle (7) is used to prevent the sleeves (6) from separating from the connecting columns (5).

7. The filter screen laser cutting machine according to claim 6, characterized in that: A V-shaped notch is provided at the upper end of the fixing plate (373), and two return springs (4) are symmetrically provided in the upper and lower directions in the outer cylinder (361). One end of the return spring (4) is fixedly connected to the upper end of the inner cylinder (362), and the other end is fixedly connected to the top of the outer cylinder (361). The return spring (4) always keeps the inner cylinder (362) away from the upper part of the outer cylinder (361).

8. The filter screen laser cutting machine according to claim 7, characterized in that: The lower end of the pressing plate (34) is provided with a plurality of insert blocks (8) distributed in an array along the lower end surface thereof, and the insert blocks (8) are used to prevent the pressing plate (34) from translating during the cutting process.

9. The filter screen laser cutting machine according to claim 8, characterized in that: The supporting net (11) is made of a metal material capable of attracting the magnetic attractor block (366).

10. A filter screen laser cutting system, comprising a filter screen laser cutting machine as claimed in any one of claims 1 to 9, characterized in that: Also includes: A clamping mechanism is installed on the base (1) and is used to clamp the four sides of the filter screen raw material to prevent the filter screen raw material from shifting.

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