PP laser heating cutting machine

Abstract

The invention relates to the technical field of plate cutting, and discloses a PP laser heating cutting machine which comprises a base table, an I-shaped frame is fixedly connected to the upper portion of the base table, a portal frame is fixedly installed on the top of the I-shaped frame, a temperature controller is fixedly installed on the top of the portal frame, and a laser heater is fixedly installed on the lower portion of the inner side of the portal frame. A cutting table is symmetrically arranged between the inner sides of the I-shaped frame, a heat insulation adjusting assembly is arranged between the laser heater and the cutting table and comprises two heat insulation baffles capable of relatively moving, the laser irradiation range is adjusted through the heat insulation adjusting assembly, a non-heating area above the cutting table is physically shielded, and the cutting efficiency is improved. The to-be-heated area of the PP plate is completely exposed below the laser heater, accurate heating is achieved, laser heat is prevented from being radiated to other areas above the cutting table, and deformation or thermal damage caused by overheating of the non-cutting part of the PP plate is prevented.

Description

Technical Field

[0001] This invention belongs to the field of sheet metal cutting technology, specifically relating to a PP laser heating cutting machine. Background Technology

[0002] The PP laser heating and cutting machine achieves environmentally friendly, efficient, and precise processing of PP sheets through the synergistic effect of laser preheating and cutting, combined with a high-precision CNC system.

[0003] PP sheets need to be cut during production to meet usage requirements. In existing technologies, mechanical cutting is mainly used to cut PP sheets. Since PP sheets are brittle at room temperature, mechanical cutting of PP sheets will be subject to external forces, which can cause brittle fracture of the PP sheets, thus affecting the quality of PP sheet cutting.

[0004] Therefore, by using a laser preheating device to preheat the cutting area before cutting, the material can achieve a relatively uniform temperature distribution before cutting, thereby reducing the difference in thermal stress during the cutting process. In addition, preheating can make the material more easily plastically deformed during cutting, further dispersing stress and avoiding delamination or cracking caused by stress concentration. Furthermore, by controlling the size and temperature distribution of the heat-affected zone, its impact on material properties can be minimized. The cut PP sheet can maintain better overall performance and structural strength, reducing the possibility of delamination or cracking.

[0005] When preheating PP boards of different lengths, existing laser heating equipment cannot adjust the irradiation range of the laser heater according to the actual size of the board because the irradiation range of the laser heater is fixed. When the PP board to be cut is placed above the cutting table for preheating, if the length of the PP board is less than the laser irradiation range, the excess heat will directly irradiate the cutting table or the non-heated area. On the one hand, this causes energy waste, and on the other hand, the laser heat cannot be concentrated on the area to be heated. Some of the heat is radiated to the non-cutting area above the cutting table, which can easily cause deformation or thermal damage to the non-heated area above the cutting table due to overheating.

[0006] Therefore, the present invention provides a PP laser heating cutting machine. Summary of the Invention

[0007] To overcome the shortcomings of the prior art: to solve at least one technical problem raised in the background art.

[0008] The technical solution adopted by the present invention to solve its technical problem is as follows: A PP laser heating cutting machine of the present invention includes a base platform, an I-frame fixedly connected above the base platform, a gantry frame fixedly installed on the top of the I-frame, a temperature controller fixedly installed on the top of the gantry frame, a laser heater fixedly installed on the lower inner side of the gantry frame, cutting tables symmetrically arranged between the inner sides of the I-frame, a heat shielding adjustment component between the laser heater and the cutting table, the heat shielding adjustment component including two relatively movable heat insulation baffles, a heat recovery component between the heat insulation baffles and the bottom of the cutting table, the heat insulation baffles adjust the range of heat irradiation by moving to block and adjust, and absorb excess heat and transfer it to the bottom of the cutting table through the heat recovery component, a cutting blade is arranged below the gap between the two cutting tables, the cutting blade can cut PP sheets by lifting and lowering, and a feeding component is arranged outside the cutting table to drive the cutting table to tilt.

[0009] Preferably, the heat-shielding adjustment assembly further includes a rectangular frame, the outer walls of the two heat-insulating baffles are slidably connected to the inner walls of the two sides of the rectangular frame, internal threaded blocks are fixedly connected to both sides of the heat-insulating baffles, and fixed plates are symmetrically fixedly connected to both sides of the bottom of the rectangular frame. A servo motor is fixedly installed on one side of the fixed plate, and a bidirectional threaded rod is fixedly connected to the output shaft of the servo motor. The bidirectional threaded rod is rotatably connected to the inner wall of the fixed plate, and the inner walls of the two internal threaded blocks are threadedly connected to the two outer walls of the two fixed plates respectively.

[0010] Preferably, the rectangular frame has side sliding grooves on both sides, and the inner walls of the side sliding grooves are symmetrically connected to side sliders. The inner walls of the side sliders are all connected to plug rods, and the bottom of the plug rods are all fixedly connected to positioning balls.

[0011] Preferably, the outer walls of the two plug rods are respectively plugged into the inner walls of the two internal threaded blocks, and each plug rod is provided with a compression spring. The two ends of the compression spring are respectively connected to the top of the side slider and the bottom of the plug rod.

[0012] Preferably, guide rail blocks are fixedly connected to both sides of the rectangular frame, and electrically conductive guide rails are symmetrically fixedly connected to the inner side of the gantry frame. The outer walls of the two guide rail blocks are slidably connected to the outer walls of the two electrically conductive guide rails respectively.

[0013] Preferably, the heat recovery assembly includes two sets of heat collection blocks, each set of heat collection blocks is fixedly connected to the bottom of the heat insulation baffle, and a heat conduction pipe is fixedly connected to the bottom of each heat collection block. A heat spreader plate is fixedly connected to the bottom of each cutting table, and the end of the heat conduction pipe away from the heat collection block is fixedly connected to the bottom of the heat spreader plate.

[0014] Preferably, a pivot is fixedly connected to the inner wall of one end of each of the two cutting tables that are close to each other. The pivot is rotatably connected to the inner wall of the I-frame. A side extension plate is fixedly connected to the outer wall of each pivot. An inclined slide is fixedly installed on both sides of the base platform. The inclined slides are located on the lower side of the two cutting tables respectively.

[0015] Preferably, the unloading assembly includes multiple arc-shaped slides, which are fixedly connected to the side of the I-beam frame. Arc-shaped sliders are slidably connected to the inner walls of the arc-shaped slides and are mutually adapted. A connecting block is fixedly connected above each arc-shaped slider. The connecting block is fixedly connected to the bottom of the side extension plate. A swing rod is fixedly connected to the outer wall of the rotating shaft. The end of the swing rod away from the rotating shaft is fixedly connected to one side of the arc-shaped slider. A swing assembly that drives the swing rod to swing is provided above the swing rod.

[0016] Preferably, a hydraulic cylinder is fixedly installed on the bottom surface of the I-beam frame, the output end of the hydraulic cylinder is fixedly connected to the bottom of the cutting tool, V-shaped frames are fixedly connected to both sides of the cutting tool, and pressure rods are fixedly connected to both ends of the upper part of the V-shaped frames, with the surface of the pressure rods in contact with the upper surface of the swing rod.

[0017] Preferably, lifting blocks are fixedly connected to both sides of the cutting tool, and limit grooves are respectively opened on the inner walls of both sides of the I-beam frame. The lifting blocks and the limit grooves are slidably connected and adapted to each other. A torsion spring is provided inside the arc-shaped slide block, and the two ends of the torsion spring are fixedly connected to one end of the arc-shaped slider and the inner wall surface of the arc-shaped slide block, respectively.

[0018] The beneficial effects of this invention are as follows: 1. The PP laser heating and cutting machine of the present invention uses a heat shielding adjustment component to drive two heat insulation baffles to move away from or closer to each other according to the length of the PP board, thereby adjusting the laser irradiation range and forming a physical shield for the non-heated area above the cutting table. The area of ​​the PP board to be heated is completely exposed to the laser heater, achieving precise heating and preventing laser heat radiation to the remaining area above the cutting table, thus preventing deformation or thermal damage to the non-cutting parts of the PP board due to overheating.

[0019] 2. The PP laser heating cutting machine of the present invention uses a heat recovery component to transfer excess heat absorbed by the heat insulation baffle to the bottom of the cutting table. The cutting table then conducts the heat to the lower surface of the PP board, achieving simultaneous preheating of both the upper and lower surfaces of the PP board. This results in a more uniform heat distribution, which helps to soften the cutting area, making the cutting surface smoother during subsequent cutting and improving the cutting quality.

[0020] 3. The PP laser heating cutting machine of the present invention, through the feeding component, when the cutting blade continues to descend after reaching the initial position, drives the two cutting tables to tilt in opposite directions, so that the finished PP board automatically slides down under the action of gravity, avoiding the operator's hands from touching the PP board that is still warm, effectively ensuring operational safety.

[0021] 4. In the PP laser heating and cutting machine of the present invention, after the two heat insulation baffles have moved and the PP board is fully exposed directly below the laser heater, the four positioning balls can be located at the four corner edges of the PP board respectively. After the guide block moves down, the positioning balls press against the PP board with appropriate elastic pressure to achieve stable positioning of the PP board, prevent it from shifting its position during subsequent laser heating and cutting processes, and ensure accurate heating area and neat cutting lines. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a perspective view of the entire invention; Figure 2 This is a schematic diagram of the structure at the cutting table in this invention; Figure 3 This is a schematic diagram of the structure of the cutting tool in this invention; Figure 4 This is a schematic diagram of the structure of the heat insulation baffle in this invention; Figure 5 This is a schematic diagram of the internal thread block structure in this invention; Figure 6 This is a schematic diagram of the structure at the positioning ball in this invention; Figure 7 This is a schematic diagram of the structure of the heat spreader in this invention; Figure 8 This is a schematic diagram of the arc-shaped slide block structure in this invention; Figure 9 This is a schematic diagram of the structure at the swing rod in this invention; Figure 10 This is a schematic diagram of the V-shaped frame structure in this invention.

[0024] In the diagram: 1. Base platform; 2. I-beam frame; 3. Gantry frame; 4. Temperature controller; 5. Laser heater; 6. Cutting table; 7. Cutting blade; 8. Heat insulation baffle; 9. Rectangular frame; 10. Internal threaded block; 11. Fixing plate; 12. Servo motor; 13. Bidirectional threaded rod; 14. Side slider; 15. Positioning ball; 16. Side slide groove; 17. Connecting rod; 18. Compression spring; 19. Heat collection block; 20. Heat dissipation plate; 21. Heat conduction pipe; 22. Rotating shaft; 23. Inclined slide table; 24. Side extension plate; 25. Connecting block; 26. Arc-shaped slider; 27. Swing rod; 28. V-shaped frame; 29. ​​Arc-shaped slide seat; 30. Downward pressure rod; 31. Lifting block; 32. Limiting slide groove; 33. Torsion spring; 34. Hydraulic cylinder; 35. Guide rail block; 36. Powered guide rail. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] like Figures 1 to 10 As shown, the present invention provides a technical solution: a PP laser heating cutting machine, including a base platform 1, a frame 2 fixedly connected above the base platform 1, a gantry frame 3 fixedly installed on the top of the frame 2, a temperature controller 4 fixedly installed on the top of the gantry frame 3, a laser heater 5 fixedly installed on the lower inner side of the gantry frame 3, and cutting tables 6 symmetrically arranged between the inner sides of the frame 2. A heat shielding adjustment component is provided between the laser heater 5 and the cutting table 6. The heat shielding adjustment component includes two relatively movable heat insulation baffles 8. A heat recovery component is provided between the heat insulation baffles 8 and the bottom of the cutting table 6. The heat insulation baffles 8 can block and adjust the range of heat irradiated by the laser by moving, and absorb excess heat and transfer it to the bottom of the cutting table 6 through the heat recovery component. A cutting blade 7 is provided below the gap between the two cutting tables 6. The cutting blade 7 can cut PP sheets by lifting and lowering. A feeding component that drives the cutting table 6 to tilt is provided outside the cutting table 6.

[0027] During operation: Place the PP board to be cut directly above the two cutting tables 6, aligning the pre-set cutting lines on the PP board surface with the gap between the two cutting tables 6; before starting the laser heater 5, according to the length of the PP board, drive the two heat insulation baffles 8 to move away from each other via the heat shielding adjustment component, so that the area of ​​the PP board to be heated is completely exposed below the laser heater 5, while the two heat insulation baffles 8 shield the remaining non-heated area above the cutting tables 6; then the temperature controller 4 controls the laser heater 5 to start laser heat irradiation, at which time P The upper surface of the P board is fully heated due to complete exposure, while excess heat at the edge of the laser heater 5's irradiation range is absorbed by the heat insulation baffles 8 on both sides, preventing the laser heat from irradiating other areas above the cutting table 6 that do not need heating. Then, the excess heat absorbed by the heat insulation baffles 8 can be transferred to the bottom of the cutting table 6 through the heat recovery component. After receiving the heat, the bottom of the cutting table 6 can transfer it to the lower surface of the PP board. In this way, both sides of the PP board can be preheated simultaneously. Heating both sides can make the heat distribution more even, which is beneficial for a flat cutting surface during subsequent cutting. After the PP board is preheated, the cutting blade 7 is raised by controlling the cutting blade 7 to gradually insert into the gap between the two cutting tables 6. The cutting blade 7 applies cutting force to the cutting line of the PP board from bottom to top along the gap, so that the preheated and softened PP board is neatly separated along the preset cutting line. After the cutting is completed, the cutting blade 7 first descends back to the initial position and then continues to descend. During this movement, the two cutting tables 6 are tilted by the unloading component. Since the PP board has been cut at this time, the upper surfaces of the two cutting tables 6 will tilt downwards in opposite directions, so that the cut PP board products will automatically slide down under the action of gravity and complete the unloading. This unloading method can avoid the operator touching the PP board that is still warm. Through the above embodiments, the heat shielding adjustment component drives the two heat insulation baffles 8 to move away from or closer to each other according to the length of the PP board, adjusting the laser irradiation range and forming a physical shield for the non-heated area above the cutting table 6. The area of ​​the PP board to be heated is completely exposed to the laser heater 5, achieving precise heating and preventing laser heat radiation to the remaining area above the cutting table 6, thus preventing deformation or thermal damage to the non-cutting parts of the PP board due to overheating. Through the heat recovery component, the excess heat absorbed by the heat insulation baffles 8 is transferred to the bottom of the cutting table 6, and the heat is conducted to the lower surface of the PP board through the cutting table 6, achieving simultaneous preheating of the upper and lower surfaces of the PP board, making the heat distribution more uniform. Uniform preheating helps to soften the cutting area, making the cutting surface smoother during subsequent cutting and improving the cutting quality. Through the unloading component, when the cutting blade 7 continues to descend after reaching the initial position, it drives the two cutting tables 6 to tilt in opposite directions, so that the finished PP board automatically slides down under the action of gravity, avoiding the operator's hands from touching the still warm PP board, effectively ensuring operational safety.

[0028] like Figures 4 to 6 As shown, the heat-shielding adjustment assembly also includes a rectangular frame 9. The outer walls of the two heat-insulating baffles 8 are slidably connected to the inner walls of the two sides of the rectangular frame 9. Internal threaded blocks 10 are fixedly connected to both sides of the heat-insulating baffles 8. Fixed plates 11 are symmetrically fixedly connected to both sides of the bottom of the rectangular frame 9. A servo motor 12 is fixedly installed on one side of the fixed plate 11. A bidirectional threaded rod 13 is fixedly connected to the output shaft of the servo motor 12. The bidirectional threaded rod 13 is rotatably connected to the inner wall of the fixed plate 11. The inner walls of the two internal threaded blocks 10 are threadedly connected to the two outer walls of the two fixed plates 11 respectively.

[0029] During operation: When the laser irradiation range needs to be adjusted according to the length of the PP board, the servo motor 12 is started, and its output shaft drives the bidirectional threaded rod 13 to rotate. Since the two threads of the bidirectional threaded rod 13 have opposite directions of rotation, and the two internal threaded blocks 10 are respectively engaged with these two threads, when the bidirectional threaded rod 13 rotates, the two internal threaded blocks 10 will drive the heat insulation baffles 8 to move synchronously away from or towards each other along the inner wall of the rectangular frame 9. When the two heat insulation baffles 8 move away from each other, the area of ​​the PP board to be heated is completely exposed below the laser heater 5, and at the same time, the heat insulation baffles 8 shield the remaining non-heated area above the cutting table 6. Conversely, when the two heat insulation baffles 8 move towards each other, it can adapt to the heating requirements of shorter PP boards and realize flexible adjustment of the laser irradiation range.

[0030] like Figures 5 to 6 As shown, side sliding grooves 16 are provided on both sides of the rectangular frame 9. Side sliders 14 are symmetrically slidably connected to the inner walls of the side sliding grooves 16. Insertion rods 17 are inserted into the inner walls of the side sliders 14. Positioning balls 15 are fixedly connected to the bottom of the insertion rods 17.

[0031] During operation: Multiple positioning balls 15 can be used to press down and position the four corner edges of the PP board. Since the plug-in rod 17 and the side slider 14 are plugged in, the positioning balls 15 can automatically adjust the extension and retraction amount according to the height of the board when they contact the PP board, avoiding indentation or damage to the surface of the PP board caused by rigid pressing. At the same time, the side slider 14 can slide along the side slide groove 16, adjusting the distribution position of the four positioning balls 15 according to the length and width of the PP board, so that the positioning balls 15 always act on the four corner edge areas of the PP board, realizing adaptive positioning for PP boards of different sizes, ensuring that the PP board remains stable in position during heating and cutting, and preventing the cutting line from shifting or uneven heating due to board material displacement.

[0032] like Figures 5 to 6 As shown, the outer walls of the two plug rods 17 are respectively plugged into the inner walls of the two internal thread blocks 10. Each plug rod 17 is provided with a compression spring 18. The two ends of the compression spring 18 are respectively connected to the top of the side slider 14 and the bottom side of the plug rod 17.

[0033] During operation: When the positions of the two heat insulation baffles 8 are adjusted, the two internal threaded blocks 10 move closer to or further away from each other along the surface of the bidirectional threaded rod 13, and at the same time drive the plug rod 17 and the positioning ball 15 to move synchronously, so that the positioning ball 15 always follows the adjustment position of the heat insulation baffles 8, ensuring that the positioning ball 15 can accurately act on the four corner edge areas of the PP board. When the positioning ball 15 presses down to contact the PP board, the plug rod 17 retracts slightly upward relative to the side slider 14, the compression spring 18 is compressed and generates a downward elastic restoring force, so that the positioning ball 15 presses against the surface of the PP board with elastic pressure.

[0034] like Figure 2 and Figure 4 As shown, guide rail blocks 35 are fixedly connected to both sides of the rectangular frame 9, and power-conducting guide rails 36 are symmetrically fixedly connected to the inner side of the gantry 3. The outer walls of the two guide rail blocks 35 are slidably connected to the outer walls of the two power-conducting guide rails 36 respectively.

[0035] During operation: After the two heat insulation baffles 8 have moved and the PP board is fully exposed directly below the laser heater 5, the four positioning balls 15 can be positioned at the four corner edges of the PP board. By controlling the energized guide rail 36, the guide rail block 35 can slide downwards along its surface, thereby driving the entire rectangular frame 9 and components such as the heat insulation baffles 8, the plug-in rod 17, and the positioning balls 15 to descend synchronously. As the rectangular frame 9 moves downwards as a whole, the positioning balls 15 gradually approach and eventually contact the four corner edges of the PP board. Under the elastic action of the compression spring 18, the positioning balls 15 press against the PP board with appropriate elastic pressure to achieve stable positioning of the PP board, preventing it from shifting position during subsequent laser heating and cutting processes, and ensuring accurate heating area and neat cutting lines.

[0036] like Figure 2 and Figure 7 As shown, the heat recovery assembly includes two sets of heat collection blocks 19. Each set of heat collection blocks 19 is fixedly connected to the bottom of the heat insulation baffle 8. A heat conduction pipe 21 is fixedly connected to the bottom of each heat collection block 19. A heat spreader plate 20 is fixedly connected to the bottom of each cutting table 6. The end of the heat conduction pipe 21 away from the heat collection block 19 is fixedly connected to the bottom of the heat spreader plate 20.

[0037] During operation: When the laser heater 5 is activated to irradiate with laser heat, the excess heat at the edge of the irradiation range directly irradiates and acts on the heat insulation baffles 8 on both sides. After the heat insulation baffles 8 absorb this excess heat, their temperature gradually rises. The heat on the heat insulation baffles 8 is quickly conducted to the heat collection block 19. The heat collection block 19, as the concentrated heat collection end, gathers the heat and conducts it downward through the heat conduction pipe 21. The heat conduction pipe 21 transfers the heat to the heat spreader 20. The heat spreader 20 evenly distributes the received heat on the bottom surface of the cutting table 6, and then transfers the heat to the lower surface of the PP board placed on it through the cutting table 6, realizing the preheating of the lower surface of the PP board, so that the upper and lower surfaces of the PP board are heated simultaneously, improving the heat utilization efficiency, and making the heat distribution more uniform, which is beneficial to the flatness of the cutting surface during subsequent cutting.

[0038] like Figure 2 and Figure 8 As shown, the inner walls of the two cutting tables 6 that are close to each other are fixedly connected with a rotating shaft 22. The rotating shaft 22 is rotatably connected to the inner wall of the I-frame 2. The outer walls of the rotating shaft 22 are fixedly connected with side extension plates 24. Inclined slides 23 are fixedly installed on both sides of the base platform 1. The inclined slides 23 are located on the lower sides of the two cutting tables 6 respectively.

[0039] During operation: After the cutting blade 7 rises to complete the cutting, it first descends to return to its initial position. As it continues to descend, the feeding assembly drives the two side extension plates 24 to rotate around the pivot 22. The rotation of the side extension plates 24 causes the cutting table 6 to tilt downwards synchronously, so that the upper surfaces of the two cutting tables 6 tilt downwards in opposite directions until the end of the cutting table 6 is aligned with the top of the inclined slide 23. At this time, the cut PP board is slid down the inclined upper surface of the cutting table 6 under the action of gravity onto the inclined slides 23 on both sides. The inclined slides 23 further guide the cut PP board to the collection area, realizing automatic feeding. When the cutting blade 7 rises again to prepare for the next cutting, the feeding assembly resets, driving the side extension plates 24 and the cutting table 6 to rotate back to a horizontal state, returning to the initial position, waiting for the next PP board to be fed.

[0040] like Figures 8 to 10 As shown, the unloading assembly includes multiple arc-shaped slides 29, which are fixedly connected to the side of the I-frame 2. Arc-shaped sliders 26 are slidably connected to the inner wall of each arc-shaped slide 29 and are mutually compatible. Connecting blocks 25 are fixedly connected to the top of each arc-shaped slider 26. The connecting blocks 25 are fixedly connected to the bottom of the side extension plate 24. Swing rods 27 are fixedly connected to the outer wall of the rotating shaft 22. The end of the swing rod 27 away from the rotating shaft 22 is fixedly connected to one side of the arc-shaped slider 26. A swinging component that drives the swing rod 27 to swing is provided above the swing rod 27.

[0041] During operation: When the cutting blade 7 finishes cutting and descends to the initial position and continues to descend, the further descent of the cutting blade 7 will drive the swing rod 27 to swing downward around the rotating shaft 22 through the swing assembly; when the swing rod 27 swings downward, the arc-shaped slider 26 slides downward along the inner wall of the arc-shaped slide block 29, and the arc-shaped slider 26 drives the side extension plate 24 to move synchronously through the connecting block 25. The side extension plate 24 rotates downward around the rotating shaft 22, thereby driving the cutting table 6 to tilt synchronously; when the arc-shaped slider 26 slides to the bottom limit position of the arc-shaped slide block 29, the cutting table 6 tilts to the maximum angle, and the PP board finished product slides down along the inclined surface to complete the unloading.

[0042] like Figure 3 , Figure 9 and Figure 10 As shown, a hydraulic cylinder 34 is fixedly installed on the bottom surface of the I-beam frame 2. The output end of the hydraulic cylinder 34 is fixedly connected to the bottom of the cutting blade 7. V-shaped frames 28 are fixedly connected to both sides of the cutting blade 7. Downward pressure rods 30 are fixedly connected to both ends of the upper part of the V-shaped frames 28. The surface of the downward pressure rods 30 is in contact with the upper surface of the swing rod 27.

[0043] During operation: After the PP board is preheated, the hydraulic cylinder 34 starts and extends upward, pushing the cutting blade 7 to rise. The cutting blade 7 gradually inserts into the gap between the two cutting tables 6 to cut the PP board. In the initial state, the pressure rod 30 is in contact with the surface of the swing rod 27. When the cutting blade 7 rises, it will gradually move away from the swing rod 27. After the cutting blade 7 finishes cutting and returns to the initial position, the two pressure rods 30 continue to be in contact with the upper surface of the two swing rods 27. Then, when the cutting blade 7 continues to descend, the pressure rod 30 presses down and pushes the swing rod 27, causing the swing rod 27 to swing downward around the pivot 22. This drives the arc-shaped slider 26 to slide downward along the arc-shaped slide block 29. Through the connecting block 25 and the side extension plate 24, the cutting table 6 is tilted downward, thereby achieving automatic unloading after cutting.

[0044] like Figures 9 to 10 As shown, lifting blocks 31 are fixedly connected to both sides of the cutting tool 7. Limiting grooves 32 are respectively opened on the inner walls of both sides of the I-beam frame 2. The lifting blocks 31 and the limiting grooves 32 are slidably connected and adapted to each other. A torsion spring 33 is provided inside the arc-shaped slide 29. The two ends of the torsion spring 33 are fixedly connected to one end of the arc-shaped slider 26 and the inner wall surface of the arc-shaped slide 29, respectively.

[0045] During operation: When the cutting blade 7 moves up and down, the lifting block 31 slides up and down along the limiting slide groove 32 to guide and limit the movement of the cutting blade 7, ensuring that the cutting blade 7 rises vertically and accurately inserts into the gap between the two cutting tables 6 to cut the PP board; the arc-shaped slider 26 slides along the inner wall of the arc-shaped slide block 29, causing the torsion spring 33 to deform when the cutting table 6 tilts; after the cutting table 6 completes the tilting and unloading, the two cutting blades 7 rise back to the initial position under the drive of the hydraulic cylinder 34, the swing rod 27 loses downward pressure, the torsion spring 33 resets again, driving the arc-shaped slider 26 to slide upward, so that the cutting table 6 returns to the horizontal state, waiting for the next cutting operation.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PP laser heating cutting machine, comprising a base platform, characterized in that: A frame is fixedly connected above the base platform. A gantry frame is fixedly installed on top of the frame. A temperature controller is fixedly installed on top of the gantry frame. A laser heater is fixedly installed on the lower inner side of the gantry frame. Cutting tables are symmetrically arranged between the inner sides of the frame. A heat shielding adjustment component is installed between the laser heater and the cutting table. The heat shielding adjustment component includes two relatively movable heat insulation baffles. A heat recovery component is installed between the heat insulation baffles and the bottom of the cutting table. The heat insulation baffles adjust the range of heat irradiated by the laser by moving and absorb excess heat and transfer it to the bottom of the cutting table through the heat recovery component. A cutting blade is installed below the gap between the two cutting tables. The cutting blade can cut the PP sheet by lifting and lowering. A feeding component is installed on the outside of the cutting table to drive the cutting table to tilt.

2. The PP laser heating cutting machine according to claim 1, characterized in that: The heat-shielding adjustment assembly also includes a rectangular frame. The outer walls of the two heat-insulating baffles are slidably connected to the inner walls of the two sides of the rectangular frame. Internal threaded blocks are fixedly connected to both sides of the heat-insulating baffles. Fixed plates are symmetrically fixedly connected to both sides of the bottom of the rectangular frame. A servo motor is fixedly installed on one side of the fixed plate. A bidirectional threaded rod is fixedly connected to the output shaft of the servo motor. The bidirectional threaded rod is rotatably connected to the inner wall of the fixed plate. The inner walls of the two internal threaded blocks are threadedly connected to the two outer walls of the two fixed plates respectively.

3. A PP laser heating cutting machine according to claim 2, characterized in that: The rectangular frame has side sliding grooves on both sides, and side sliders are symmetrically connected to the inner walls of the side sliding grooves. Insertion rods are inserted into the inner walls of the side sliders, and positioning balls are fixedly connected to the bottom of the insertion rods.

4. A PP laser heating cutting machine according to claim 3, characterized in that: The outer walls of the two plug rods are respectively inserted into the inner walls of the two internal threaded blocks. Each plug rod is equipped with a compression spring, and the two ends of the compression spring are respectively connected to the top of the side slider and the bottom of the plug rod.

5. A PP laser heating cutting machine according to claim 4, characterized in that: Guide rail blocks are fixedly connected to both sides of the rectangular frame, and electrically powered guide rails are symmetrically fixedly connected to the inner side of the gantry. The outer walls of the two guide rail blocks are slidably connected to the outer walls of the two electrically powered guide rails respectively.

6. A PP laser heating cutting machine according to claim 5, characterized in that: The heat recovery assembly includes two sets of heat collection blocks. Each set of heat collection blocks is fixedly connected to the bottom of the heat insulation baffle. A heat conduction pipe is fixedly connected to the bottom of each heat collection block. A heat spreader is fixedly connected to the bottom of each cutting table. The end of the heat conduction pipe away from the heat collection block is fixedly connected to the bottom of the heat spreader.

7. A PP laser heating cutting machine according to claim 6, characterized in that: The inner walls of the two cutting tables, which are close to each other, are fixedly connected to a pivot. The pivot is rotatably connected to the inner wall of the I-frame. The outer walls of the pivot are fixedly connected to side extension plates. Inclined slides are fixedly installed on both sides of the base platform. The inclined slides are located on the lower sides of the two cutting tables respectively.

8. A PP laser heating cutting machine according to claim 7, characterized in that: The feeding assembly includes multiple arc-shaped slides, which are fixedly connected to the side of the I-frame. Arc-shaped sliders are slidably connected to the inner walls of the arc-shaped slides and are mutually compatible. Connecting blocks are fixedly connected to the top of the arc-shaped sliders. The connecting blocks are fixedly connected to the bottom of the side extension plates. Swing rods are fixedly connected to the outer walls of the rotating shaft. The end of the swing rod away from the rotating shaft is fixedly connected to one side of the arc-shaped slider. A swing assembly that drives the swing rod to swing is provided above the swing rod.

9. A PP laser heating cutting machine according to claim 8, characterized in that: A hydraulic cylinder is fixedly installed on the bottom surface of the I-beam frame. The output end of the hydraulic cylinder is fixedly connected to the bottom of the cutting tool. V-shaped frames are fixedly connected to both sides of the cutting tool. Downward pressure rods are fixedly connected to both ends of the upper part of the V-shaped frames. The surface of the downward pressure rod is in contact with the upper surface of the swing rod.

10. A PP laser heating cutting machine according to claim 9, characterized in that: Lifting blocks are fixedly connected to both sides of the cutting tool. Limiting grooves are opened on the inner walls of both sides of the I-beam frame. The lifting blocks and the limiting grooves are slidably connected and adapted to each other. A torsion spring is installed inside the arc-shaped slide. The two ends of the torsion spring are fixedly connected to one end of the arc-shaped slider and the inner wall surface of the arc-shaped slide, respectively.

Images