Flexible circuit board laser cutting apparatus

Abstract

This invention relates to the field of laser cutting technology and discloses a flexible circuit board laser cutting equipment, including a support frame. A laser cutting component is installed at the top center of the support frame. A processing table is fixedly connected to the inner side of the support frame. A guide groove plate is fixedly connected above the processing table. An adsorption and flipping mechanism is provided at the top center of the guide groove plate. The adsorption and flipping mechanism includes four sprockets. The four rotatable sprockets are respectively installed at the four corners of the bottom surface of the processing table. Chains are connected and meshed to the outer sides of two sprockets on the same side. A chain block is fixedly connected to the outer surface of the chain on each side. A bottom slide is fixedly connected to the top surface of the chain block. This invention uses air pressure adsorption to position the cut sheet-like flexible material of the same size. When laser cutting flexible materials, air pressure adsorption not only provides a stable positioning effect, but also significantly improves processing accuracy, efficiency and finished product quality.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting device for flexible circuit boards. Background Technology

[0002] Laser cutting equipment for flexible circuit boards is a mechanical device used for precision cutting of flexible circuit boards. It typically uses laser technology for high-precision cutting and is mainly used in the manufacturing of electronic products, especially for circuit boards that require precision cutting and have complex shapes, such as mobile phones, computers, automotive electronics, and medical devices. The working principle of this equipment is to use a high-energy laser beam to irradiate the surface of the flexible circuit board, and to evaporate or ablate the material through the thermal effect of the laser, thereby achieving cutting.

[0003] Patent CN113977110B discloses a laser cutting device for flexible circuit boards. The technical problem of this patent is the low efficiency of manual feeding and winding, resulting in the cut strip-shaped flexible circuit boards sticking together or being uneven, making it impossible to prevent entanglement and overlap. The technical solution of this invention is: a laser cutting device for flexible circuit boards, including a fixed frame, a laser cutting unit, a transmission and winding unit, and a sorting unit; the upper surface of the fixed frame is equipped with a laser cutting unit for laser cutting the flexible circuit boards; the left and right sides of the upper surface of the fixed frame are equipped with transmission and winding units for transmitting and winding the flexible circuit boards; a sorting unit is connected to the right side of the laser cutting unit for sorting the cut flexible circuit boards. This patent designs a transmission and winding unit, realizing automatic feeding and reel winding of the flexible circuit boards, effectively improving production efficiency and reducing worker workload. However, this patent cannot solve the problem of how to continuously cut flexible circuit boards of the same size. Therefore, a laser cutting device for flexible circuit boards is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a flexible circuit board laser cutting device to address the shortcomings of the prior art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: a flexible circuit board laser cutting equipment, including a support frame, a laser cutting component installed at the top center of the support frame, a processing table fixedly connected to the inner side of the support frame, a guide groove plate fixedly connected above the processing table plate, and an adsorption and flipping mechanism provided at the top center of the guide groove plate.

[0006] The adsorption and flipping mechanism includes four sprockets, each rotatable and mounted at one of the four corners of the bottom surface of the processing table. Chains are meshed with the outer sides of two sprockets on the same side. A chain block is fixedly connected to the outer surface of each chain on each side. A bottom slide block is fixedly connected to the top surface of each chain block. An upper frame plate is slidably connected above the bottom slide block. A flipping plate is hinged to the upper surface of the upper frame plate. An air vent plate is fixedly connected inside the flipping plate. An air supply pipe is fixedly connected to the bottom surface of the air vent plate. A sliding groove is provided on the outer side of the air supply pipe, extending from the upper surface of a guide groove plate to the bottom surface of the processing table. A sprocket is mounted at the bottom of the processing table. An external motor drives a chain to rotate, which in turn moves the connected chain blocks, causing the bottom slide to move. The bottom slide moves the upper frame plate via a vertical sliding rod extending from the top surface. When the flexible circuit board to be processed is above the air cavity plate, the bottom slide is located in the middle of the guide groove plate. At this time, the control air pump is in working condition, drawing gas through the air extraction pipe to create negative pressure inside the pipe. The air valve block connected to the extraction pipe is connected to the vertical groove of the sliding block, allowing the extraction pipe to draw air from the bottom-connected air supply pipe through the vertical groove. The air supply pipe then draws air out of the air cavity plate, and the air cavity plate then adsorbs the flexible material to be cut through small holes on its surface.

[0007] According to the above technical solution, a collection mechanism is provided at the upper front end of the guide groove plate, a material feeding mechanism is provided at the rear side of the adsorption and flipping mechanism, and an air pump is installed on the bottom surface of the processing table.

[0008] According to the above technical solution, a gear is provided between the hinge of the flip plate and the upper frame plate, and a toothed rod is meshed with the bottom surface of the gear. A spring plate is fixedly connected to the front end of the toothed rod, and the end of the spring plate away from the toothed rod is fixedly connected to the front side of the upper frame plate. A guide channel for guiding the sliding of the bottom slide is opened on the upper surface of the front half of the guide groove plate, and an elastic push block and a positioning block are respectively provided on the inner side of the guide channel. A stop bar is fixedly connected to the upper surface of the flip plate, and guide wheels are installed on both the front and rear sides of the upper frame plate.

[0009] According to the above technical solution, two vertical sliding rods extend upward from the top surface of the bottom slide block, and a reciprocating spring is provided on the outer side of the vertical sliding rod. The two ends of the reciprocating spring are fixedly connected to the bottom slide block and the upper frame plate, respectively. The interior of the air cavity plate is a hollow structure, and multiple small holes for air outlet are opened on the top surface of the air cavity plate. Both gears are fixedly connected to the flip plate. The gear rack is slidably connected to the upper frame plate. The positioning block is fixed to the guide groove plate with an adjustable screw. The elastic push block is slidably connected to the guide groove of the guide groove plate. An elastic spring is fixedly connected between the elastic push block and the positioning block. The guide wheel is slidably connected to the guide groove of the guide groove plate.

[0010] According to the above technical solution, the air pump is connected to a suction pipe and an exhaust pipe on its side. The end of the suction pipe away from the air pump is fixedly connected to an air valve block. A sliding plug is slidably connected inside the air valve block. A right-angle through groove and a vertical through groove are respectively opened inside the front and rear ends of the sliding plug. An air intake port is provided on the side of the right-angle through groove. An arc-shaped push rod is fixedly connected to the bottom surface of the sliding plug. A spring rod is fixedly connected to the rear end of the sliding plug.

[0011] According to the above technical solution, the top surface of the valve block is fixedly connected to the air supply pipe, and a return spring is provided on the outer side of the spring rod. The two ends of the return spring are fixedly connected to the sliding block and the valve block, respectively. After the flexible material adsorbed on the air cavity plate is processed by the laser cutting assembly, the control sprocket is in working state. The sprocket rotates and drives the chain to move the chain block. The movement of the chain block simultaneously drives the bottom slide and the upper frame plate to move together along the guide channel opened on the surface of the guide groove plate. The upper frame plate moves forward and rolls along the guide channel through the connected guide wheel. The toothed bar connected to the spring plate first moves forward with the upper frame plate and contacts the elastic push block. Then the upper frame plate continues to move forward. During this process, the movement of the upper frame plate drives the air cavity plate to move and flips with the flipping plate. The flipping of the air cavity plate drives the air supply pipe and the valve block to move together. When the arc-shaped push rod connected to the sliding block is squeezed by the front edge of the sliding tube groove, the sliding block is pushed to slide with the air valve block, causing the sliding block to squeeze the return spring. At this time, the vertical channel is no longer connected to the air supply pipe, and the air cavity plate no longer adsorbs the material, allowing the material to slide down along the inclined air cavity plate. This causes the rack to push the elastic push block to compress the elastic spring. After the elastic spring is compressed, the elastic spring applies a reaction force to the elastic push block, pushing the rack to compress the spring plate. At this time, the rack moves relative to the forward-moving upper frame plate and drives the meshing gear to rotate. The rotation of the gear drives the connected flip plate to flip, causing the flip plate to flip upward around the connection of the upper frame plate. After flipping, the flip plate drives the fixed air cavity plate to move together, allowing the processed circuit wires and flexible waste on the air cavity plate to enter the collection mechanism together.

[0012] According to the above technical solution, the collection mechanism includes a waste trough end, which is fixedly connected to the front bottom surface of the guide trough plate. A receiving trough end is provided at the rear end of the waste trough end. A material distribution inclined plate is fixedly connected to the inner top of the receiving trough end and the waste trough end. Multiple material distribution grooves are opened on the upper surface of the material distribution inclined plate. An air extraction strip is provided directly below the material distribution groove. An air extraction pipe is fixedly connected to the end of the air extraction port away from the sliding block. A side transverse groove is opened on the side of the air extraction strip. A grooved plate is fixedly connected to the bottom of the inner wall of the receiving trough end. Multiple collection grooves are opened on the surface of the grooved plate.

[0013] According to the above technical solution, the receiving trough end is fixedly connected to the guide trough plate, the suction pipe passes through the outer wall of the receiving trough end to the inside of the receiving trough end, the suction strip is fixedly connected to the suction pipe, and when the arc-shaped push rod connected to the sliding block is squeezed by the front edge of the sliding pipe groove, the sliding block is pushed to slide with the air valve block, causing the sliding block to squeeze the return spring. At this time, the right-angle through groove in the sliding block is in a connected state with the suction pipe, and the right-angle through groove adsorbs gas from the connected suction pipe through the suction port. The suction pipe adsorbs gas through the side transverse groove opened by the suction strip and passes through the material distribution inclined plate. As the material falls, the material and smaller fragments of waste slide down the inclined vent plate onto the distribution ramp. Even if the fragments of waste are sucked in by the suction strip, they will be blocked outside the side transverse groove. Then, the material slides down the distribution ramp from the distribution groove onto the groove plate, while the waste slides along the groove plate with the wiring material. During the sliding process, the fragments of waste fall into the collection trough, while the finished wiring slides along the groove plate and is discharged from the receiving trough end. Larger waste slides along the groove plate and falls over the receiving trough into the waste trough end.

[0014] According to the above technical solution, the feeding mechanism includes an air supply bar, which is fixedly connected to the end of the exhaust pipe. A branch pipe is fixedly connected to the top surface of the air supply bar, and a feeding end shell is fixedly connected to the top of the branch pipe. Air outlet groove plates are fixedly connected to the inner walls of both sides of the feeding end shell. An electrically driven conveyor belt is installed on the bottom surface of the feeding end shell. A flipping shaft is fixedly connected between the two air outlet groove plates. A flipping box is rotatably connected to the outer side of the flipping shaft. A pressure roller is rotatably connected to the bottom end of the flipping box. A feeding groove is opened on the front side of the feeding end shell.

[0015] According to the above technical solution, the air supply strip is equipped with filter material inside, the discharge end shell is fixedly connected to the inner rear end of the support frame, the side of the tilting box is equipped with a reciprocating spring, and the two ends of the reciprocating spring are fixedly connected to the tilting box and the discharge end shell respectively. The side of the air outlet plate is provided with a slotted groove, and the gas discharged by the air pump is discharged through the connected exhaust pipe. The gas is transported to the air supply strip through the exhaust pipe, and then transported to the branch pipe by the air supply strip. The branch pipe transports the gas to the interior of the air outlet plates on both sides of the discharge end shell, and blows it onto the stacked flexible circuit board material through the slotted groove on the side of the air outlet plate. When the upper frame plate moves closer to the side of the discharge end shell, the upper frame plate touches the switch on the front side of the discharge end shell, so that the switch controls the conveyor belt to be in working state, and drives the air outlet plate to transfer the contacted material from the discharge trough. During this process, the tilting box rotates around the tilting axis under the action of the reciprocating spring and pushes the pressure roller to press the upper surface of the material, so that the material is aligned with the discharge trough, avoiding the flexible material bending and deformation and being unable to be accurately transferred from the discharge trough.

[0016] The present invention, by adopting the above technical solution, can bring the following beneficial effects:

[0017] This flexible circuit board laser cutting equipment uses air pressure adsorption to position the equally sized sheet-like flexible materials being cut. When laser cutting flexible materials, air pressure adsorption not only provides stable positioning but also significantly improves processing accuracy, efficiency, and finished product quality. Laser cutting requires extremely high material positional stability. Air pressure adsorption uses uniform negative pressure to tightly adhere the material to the worktable, preventing the laser focus point from shifting. It eliminates the need for manual pasting and fixing, making it fast and convenient.

[0018] This flexible circuit board laser cutting equipment eliminates the need for physical contact. Traditional mechanical grippers or suction cups may scratch the surface of the flexible circuit board. The material will fall off naturally after tilting. For hollow designs or grid-like flexible circuits, gravity can help the material detach from the adsorption plate as a whole when tilted, avoiding local residue. By adjusting the tilt angle and canceling the adsorption sequence, the material can slide to the collection in a controlled manner.

[0019] This flexible circuit board laser cutting equipment avoids the mixing of fragmented waste materials such as burrs and slag into the finished product wiring harness by collecting them in separate sections, thus preventing scratches on the surface. It also avoids the stacking of large pieces of waste with the finished product, which may cause indentations or electrostatic adsorption of impurities, and improves the processing efficiency of continuous cutting.

[0020] This flexible circuit board laser cutting equipment blows air on both sides of the circuit material to prevent the stacked materials from adhering to each other due to static electricity, thus affecting normal material output. In addition, the side of the flip box squeezes the inner wall of the feeding end shell, so that the materials stacked between the feeding end shell and the flip box are squeezed to prevent the stacked materials from adhering completely, forming a micro air cushion isolation layer between the material layers to avoid physical contact. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall rear-view three-dimensional structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the adsorption and flipping mechanism of the present invention;

[0024] Figure 4 For the present invention Figure 3 A magnified structural diagram of A in the middle;

[0025] Figure 5 For the present invention Figure 3 A magnified structural diagram of B in the diagram;

[0026] Figure 6 For the present invention Figure 3 A magnified structural diagram of C;

[0027] Figure 7 This is a schematic diagram of the valve block connection structure of the present invention;

[0028] Figure 8 For the present invention Figure 7 A magnified structural diagram of D in the diagram;

[0029] Figure 9 This is a schematic diagram of the collection mechanism of the present invention;

[0030] Figure 10 For the present invention Figure 9 A magnified structural diagram of E in the middle;

[0031] Figure 11 This is a schematic diagram of the feeding mechanism of the present invention.

[0032] In the diagram: 1. Support frame; 2. Laser cutting assembly; 3. Processing table; 4. Guide groove plate; 5. Adsorption and flipping mechanism; 51. Sprocket; 52. Chain; 53. Bottom slide; 54. Upper frame plate; 55. Flipping plate; 56. Air cavity plate; 57. Chain block; 58. Gear; 59. Stop bar; 510. Tooth rack; 511. Spring plate; 512. Elastic push block; 513. Positioning block; 514. Air supply pipe; 515. Guide wheel; 516. Slide groove; 6. Collection mechanism; 61. Waste trough end; 62. Receiving trough end; 63. Dividing inclined plate 64. Material distribution trough; 65. Air extraction strip; 66. Side transverse trough; 67. Groove plate; 68. Collection trough; 69. Suction pipe; 7. Discharge mechanism; 71. Air supply strip; 72. Branch pipe; 73. Discharge end shell; 74. Discharge trough; 75. Conveyor belt; 76. Air outlet plate; 77. Tilting shaft; 78. Tilting box; 79. Pressure roller; 8. Air pump; 81. Air extraction pipe; 82. Exhaust pipe; 83. Air valve block; 84. Sliding block; 85. Right angle through groove; 86. Suction port; 87. Arc-shaped push rod; 88. Spring rod; 89. Vertical through groove. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1-11 One embodiment of the present invention is: a flexible circuit board laser cutting equipment, including a support frame 1, a laser cutting component 2 installed at the top center of the support frame 1, a processing table 3 fixedly connected to the inner side of the support frame 1, a guide groove plate 4 fixedly connected above the processing table plate 3, and an adsorption flipping mechanism 5 provided at the top center of the guide groove plate 4.

[0035] The adsorption and flipping mechanism 5 includes four sprockets 51, which are rotatable and installed at the four corners of the bottom surface of the processing table 3. Chains 52 are meshed with the outer sides of two sprockets 51 on the same side. Chain blocks 57 are fixedly connected to the outer surface of each chain 52. A bottom slide block 53 is fixedly connected to the top surface of the chain block 57. An upper frame plate 54 is slidably connected above the bottom slide block 53. A flipping plate 55 is hinged to the upper surface of the upper frame plate 54. An air-perforated cavity plate is fixedly connected inside the flipping plate 55. 56. An air supply pipe 514 is fixedly connected to the bottom surface of the air chamber plate 56. A sliding groove 516 is provided on the outer side of the air supply pipe 514. The sliding groove 516 extends from the upper surface of the guide groove plate 4 to the bottom surface of the processing table 3. The sprocket 51 installed at the bottom of the processing table 3 drives the chain 52 to rotate through an external motor. The movement of the chain 52 drives the connected chain block 57 to move, causing the bottom slide 53 to move. The bottom slide 53 drives the upper frame plate 54 to move through the vertical sliding rod extending from the top surface. The flexible circuit to be processed... When the sheet material is above the venting chamber plate 56, the bottom slide 53 is located in the middle of the guide groove plate 4. At this time, the control air pump 8 is in working condition, and the air pump 8 draws the gas away through the air extraction pipe 81, creating a negative pressure inside the air extraction pipe 81. The air valve block 83 connected to the air extraction pipe 81 is connected to the vertical groove 89 of the sliding block 84, allowing the air extraction pipe 81 to draw air from the air supply pipe 514 connected to the bottom through the vertical groove 89, and then draws the air out of the venting chamber plate 56 through the air supply pipe 514. The venting chamber plate 56 then adsorbs the flexible material to be cut through the small holes on its surface. The air pressure adsorption plays a positioning role for the cut sheet-like flexible material of the same size. When laser cutting flexible materials, air pressure adsorption not only provides a stable positioning role, but also significantly improves the processing accuracy, efficiency and finished product quality. Laser cutting has extremely high requirements for the stability of the material position. Air pressure adsorption uses uniform negative pressure to tightly adhere the material to the worktable, avoiding the laser focus point from shifting. It does not require manual pasting and fixing, and is fast and convenient.

[0036] A collection mechanism 6 is provided at the upper front end of the guide trough plate 4, a feeding mechanism 7 is provided at the rear side of the adsorption and flipping mechanism 5, and an air pump 8 is installed on the bottom surface of the processing table plate 3.

[0037] A gear 58 is provided between the hinge of the flip plate 55 and the upper frame plate 54, and a toothed bar 510 is meshed with the bottom surface of the gear 58. A spring plate 511 is fixedly connected to the front end of the toothed bar 510. The end of the spring plate 511 away from the toothed bar 510 is fixedly connected to the front side of the upper frame plate 54. A guide channel for guiding the sliding of the bottom slide 53 is opened on the upper surface of the front half of the guide groove plate 4, and an elastic push block 512 and a positioning block 513 are respectively provided on the inner side of the guide channel. A stop bar 59 is fixedly connected to the upper surface of the flip plate 55, and guide wheels 515 are installed on both the front and rear sides of the upper frame plate 54.

[0038] Two vertical sliding rods extend upward from the top surface of the bottom slide block 53, and reciprocating springs are provided on the outer side of the vertical sliding rods. The two ends of the reciprocating springs are fixedly connected to the bottom slide block 53 and the upper frame plate 54, respectively. The air vent plate 56 has a hollow structure inside, and multiple small holes for air outlet are opened on the top surface of the air vent plate 56. Both gears 58 are fixedly connected to the flip plate 55. The rack 510 is slidably connected to the upper frame plate 54. The positioning block 513 is fixed to the guide groove plate 4 with an adjustable screw. The elastic push block 512 is slidably connected to the guide groove of the guide groove plate 4. An elastic spring is fixedly connected between the elastic push block 512 and the positioning block 513. The guide wheel 515 is slidably connected to the guide groove of the guide groove plate 4.

[0039] The air pump 8 is connected to a suction pipe 81 and an exhaust pipe 82 on its side. The end of the suction pipe 81 away from the air pump 8 is fixedly connected to a valve block 83. A sliding block 84 is slidably connected inside the valve block 83. Right-angle through grooves 85 and vertical through grooves 89 are respectively opened inside the front and rear ends of the sliding block 84. An air intake port 86 is provided on the side of the right-angle through groove 85. An arc-shaped push rod 87 is fixedly connected to the bottom surface of the sliding block 84. A spring rod 88 is fixedly connected to the rear end of the sliding block 84.

[0040] The top surface of the valve block 83 is fixedly connected to the air supply pipe 514. A return spring is provided on the outside of the spring rod 88, and the two ends of the return spring are fixedly connected to the sliding block 84 and the valve block 83 respectively. After the flexible material adsorbed on the air cavity plate 56 is processed by the laser cutting assembly 2, the control sprocket 51 is in working state. The sprocket 51 rotates and drives the chain 52 to move the chain block 57. The chain block 57 moves along the guide groove opened on the surface of the guide groove plate 4 together with the upper frame plate 54. The upper frame plate 54 moves forward through the connected guide wheel 515. Rolling along the guide channel, the toothed rod 510 connected to the spring plate 511 first moves forward with the upper frame plate 54 to contact the elastic push block 512. Then the upper frame plate 54 continues to move forward. During this process, the movement of the upper frame plate 54 drives the air cavity plate 56 to move and flips with the flipping plate 55. The flipping of the air cavity plate 56 drives the air supply pipe 514 and the air valve block 83 to move together. When the arc-shaped push rod 87 connected to the sliding block 84 is squeezed by the front edge of the sliding pipe groove 516, the sliding block 84 is pushed to slide with the air valve block 83, so that the sliding block 84 squeezes the reset spring. At this point, the vertical slot 89 is no longer connected to the air supply pipe 514, and the air cavity plate 56 no longer adsorbs material, causing the material to slide down along the inclined air cavity plate 56. This causes the rack 510 to push the elastic push block 512 to compress the spring spring. After the spring spring is compressed, the spring spring exerts a reaction force on the elastic push block 512, pushing the rack 510 to compress the spring plate 511. At this time, the rack 510 moves relative to the forward-moving upper frame plate 54 and drives the meshing gear 58 to rotate. The rotation of the gear 58 drives the connected flip plate 55 to flip, causing the flip plate to... The flipping mechanism 55 causes the connection point of the upper frame plate 54 to flip upwards. After flipping, the flipping plate 55 drives the fixed air cavity plate 56 to move together, allowing the processed circuit wires and flexible waste on the air cavity plate 56 to enter the collection mechanism 6 together. Traditional mechanical grippers or suction cups may scratch the surface of the flexible circuit. After tilting, the wires will fall off naturally without physical contact. For hollow designs or grid-like flexible circuits, gravity can help the material to detach from the adsorption plate as a whole when tilted, avoiding local residue. By adjusting the tilt angle and canceling the adsorption sequence, the material can slide into the collection in a controlled manner.

[0041] The collection mechanism 6 includes a waste trough end 61, which is fixedly connected to the front bottom surface of the guide trough plate 4. A receiving trough end 62 is provided at the rear end of the waste trough end 61. A material distribution inclined plate 63 is fixedly connected to the inner top of the receiving trough end 62 and the waste trough end 61. Multiple material distribution grooves 64 are provided on the upper surface of the material distribution inclined plate 63. An air extraction strip 65 is provided directly below the material distribution groove 64. An air suction pipe 69 is fixedly connected to the end of the suction port 86 away from the sliding block 84. A side transverse groove 66 is provided on the side of the air extraction strip 65. A grooved plate 67 is fixedly connected to the bottom of the inner wall of the receiving trough end 62. Multiple collection grooves 68 are provided on the surface of the grooved plate 67.

[0042] The receiving trough end 62 is fixedly connected to the guide trough plate 4. The suction pipe 69 passes through the outer wall of the receiving trough end 62 and into the inside of the receiving trough end 62. The suction strip 65 is fixedly connected to the suction pipe 69. When the arc-shaped push rod 87 connected to the sliding block 84 is squeezed by the front edge of the sliding tube groove 516, the sliding block 84 is pushed and slides against the air valve block 83, causing the sliding block 84 to squeeze the return spring. At this time, the right-angle through groove 85 in the sliding block 84 is in a connected state with the suction pipe 81. The right-angle through groove 85 absorbs gas from the connected suction pipe 69 through the suction port 86. The suction pipe 69 absorbs the material falling through the material distribution inclined plate 63 through the side transverse groove 66 opened by the suction strip 65. The material and smaller fragmented waste on the inclined air cavity plate 56 flow down the air cavity plate 56. As the material slides down the inclined plate 63, the fragmented waste, even if sucked up by the suction strip 65, will be blocked outside the side transverse groove 66. Then, the material slides down the inclined plate 63 from the distribution groove 64 onto the groove plate 67. The waste slides along the groove plate 67 with the wire material. During the sliding process, the fragmented waste falls into the collection groove 68, while the finished wire slides along the groove plate 67 and is discharged from the receiving groove end 62. Larger waste slides along the groove plate 67 and falls over the collection groove 68 into the waste trough end 61. Through separate collection, fragmented waste such as burrs and slag are prevented from mixing into the finished wire and scratching the surface. Large pieces of waste are also prevented from piling up with the finished product, which may cause indentations or electrostatic adsorption of impurities. This also improves the processing efficiency of continuous cutting.

[0043] The feeding mechanism 7 includes an air supply bar 71, which is fixedly connected to the end of the exhaust pipe 82. A branch pipe 72 is fixedly connected to the top surface of the air supply bar 71. A feeding end shell 73 is fixedly connected to the top of the branch pipe 72. Air outlet plates 76 are fixedly connected to the inner walls of both sides of the feeding end shell 73. An electrically driven conveyor belt 75 is installed on the bottom surface of the feeding end shell 73. A tilting shaft 77 is fixedly connected between the two air outlet plates 76. A tilting box 78 is rotatably connected to the outside of the tilting shaft 77. A pressure roller 79 is rotatably connected to the bottom of the tilting box 78. A feeding trough 74 is opened on the front side of the feeding end shell 73.

[0044] The air supply bar 71 is equipped with filter material inside. The discharge end shell 73 is fixedly connected to the inner rear end of the support frame 1. The side of the tilting box 78 is equipped with a reciprocating spring, and the two ends of the reciprocating spring are fixedly connected to the tilting box 78 and the discharge end shell 73 respectively. The side of the air outlet plate 76 is provided with a slot. The gas discharged by the air pump 8 is discharged through the connected exhaust pipe 82. The gas is transported to the air supply bar 71 through the exhaust pipe 82, and then transported to the branch pipe 72 through the air supply bar 71. The branch pipe 72 transports the gas to the interior of the air outlet plates 76 on both sides of the discharge end shell 73, and blows it onto the stacked flexible circuit board material through the slot on the side of the air outlet plate 76. When the upper frame plate 54 moves closer to the discharge end shell 73, it presses the front side of the discharge end shell 73. The switch controls the conveyor belt 75 to be in working condition, and drives the air outlet plate 76 to transfer the contacted material from the discharge trough 74. During this process, the tilting box 78 rotates around the tilting shaft 77 under the action of the reciprocating spring and pushes the pressure roller 79 to press the upper surface of the material, so that the material is aligned with the discharge trough 74. This prevents the flexible material from bending and deforming and failing to be accurately transferred from the discharge trough 74. By blowing air on both sides of the circuit material, the stacked materials will not adhere to each other due to static electricity, which will affect the normal discharge. In addition, the side of the tilting box 78 squeezes the inner wall of the discharge end shell 73, so that the materials stacked between the discharge end shell 73 and the tilting box 78 are squeezed to prevent the stacked materials from completely adhering to each other, forming a micro air cushion isolation layer between the material layers to avoid physical contact.

[0045] Working principle: The sprocket 51 installed at the bottom of the processing table 3 drives the chain 52 to rotate via an external motor. The movement of the chain 52 drives the connected chain block 57 to move, causing the bottom slide 53 to move. The bottom slide 53 moves the upper frame plate 54 via the vertical sliding rod extending from the top surface. When the flexible circuit board to be processed is above the air cavity plate 56, the bottom slide 53 is located in the middle of the guide groove plate 4. At this time, the control air pump 8 is in working state. The air pump 8 draws the gas away through the air extraction pipe 81, creating a negative pressure inside the air extraction pipe 81. The air valve block 83 connected to the air extraction pipe 81 is connected to the vertical groove 89 of the sliding block 84, allowing the air extraction pipe 81 to open. Air is drawn from the air supply pipe 514 connected to the bottom through the vertical slot 89, and the air in the air cavity plate 56 is also drawn out through the air supply pipe 514. The air cavity plate 56 then adsorbs the flexible material to be cut through the small holes on its surface. The air pressure adsorption plays a positioning role for the cut sheet-like flexible material of the same size. When laser cutting flexible materials, air pressure adsorption can not only provide a stable positioning role, but also significantly improve the processing accuracy, efficiency and finished product quality. Laser cutting has extremely high requirements for the stability of material position. Air pressure adsorption uses uniform negative pressure to tightly adhere the material to the worktable, avoiding the laser focus point from shifting. No manual pasting and fixing is required, which is fast and convenient.

[0046] After the flexible material adsorbed on the pore cavity plate 56 is processed by the laser cutting assembly 2, the control sprocket 51 is put into working condition. The rotation of the sprocket 51 drives the chain 52 to move the chain block 57. The chain block 57 moves together with the upper frame plate 54 along the guide groove opened on the surface of the guide groove plate 4. The upper frame plate 54 moves forward and rolls along the guide groove through the connected guide wheel 515. The toothed bar 510 connected to the spring plate 511 first moves forward with the upper frame plate 54 and contacts the elastic push block 512, and then... As the upper frame plate 54 continues to move forward, the movement of the upper frame plate 54 drives the air chamber plate 56 to move and flip along with the flipping plate 55. The flipping of the air chamber plate 56 causes the air supply pipe 514 and the valve block 83 to move together. When the arc-shaped push rod 87 connected to the sliding block 84 is squeezed by the front edge of the sliding tube groove 516, the sliding block 84 is pushed to slide with the valve block 83, causing the sliding block 84 to squeeze the return spring. At this time, the vertical groove 89 is no longer connected to the air supply pipe 514, and the air chamber plate 56 no longer sucks. The material slides down the inclined vent plate 56, causing the rack 510 to push the elastic push block 512 to compress the spring. After the spring is compressed, the spring exerts a reaction force on the elastic push block 512, pushing the rack 510 to compress the spring plate 511. At this time, the rack 510 moves relative to the forward-moving upper frame plate 54 and drives the meshing gear 58 to rotate. The rotation of the gear 58 drives the connected flip plate 55 to flip, causing the flip plate 55 to flip so that the connection point around the upper frame plate 54 is upward. The flipping plate 55, after flipping, moves the fixed vent plate 56 together, allowing the processed circuit wires on the vent plate 56 and the flexible waste to enter the collection mechanism 6 together. Traditional mechanical grippers or suction cups may scratch the surface of the flexible circuit. After tilting, the wires will fall off naturally without physical contact. For hollow designs or grid-like flexible circuits, gravity can help the material detach from the adsorption plate as a whole when tilted, avoiding local residue. By adjusting the tilt angle and canceling the adsorption sequence, the material can slide to the collection in a controlled manner.

[0047] When the arc-shaped push rod 87 connected to the sliding block 84 is squeezed by the front edge of the sliding tube groove 516, the sliding block 84 is pushed to slide against the air valve block 83, causing the sliding block 84 to squeeze the return spring. At this time, the right-angle through groove 85 in the sliding block 84 is in a connected state with the suction pipe 81. The right-angle through groove 85 draws gas from the connected suction pipe 69 through the suction port 86. The suction pipe 69 draws in the material falling through the distribution inclined plate 63 through the side transverse groove 66 opened by the suction strip 65. The material and small fragmented waste on the inclined air cavity plate 56 slide down the air cavity plate 56 to the top of the distribution inclined plate 63. Even if the fragmented waste is sucked by the suction strip 65, it will still be able to pass through the air cavity plate 63. The material is blocked outside the side transverse groove 66. Then, it slides down from the material distribution groove 64 to the groove plate 67 along the material distribution inclined plate 63. The waste slides along the groove plate 67 with the wire material. During the sliding process, the fragmented waste falls into the collection groove 68, while the finished wire slides along the groove plate 67 and is discharged from the receiving groove end 62. The larger waste slides along the groove plate 67 and falls over the collection groove 68 into the waste groove end 61. By collecting the waste separately, fragmented waste such as burrs and slag are prevented from being mixed into the finished wire and scratching the surface. Large pieces of waste are also prevented from being piled up with the finished product, which may cause indentations or static electricity to attract impurities. This also improves the processing efficiency of continuous cutting.

[0048] The gas discharged by the air pump 8 is discharged through the connected exhaust pipe 82, which then delivers the gas to the air supply bar 71. From the air supply bar 71, the gas is delivered to the branch pipe 72, and from the branch pipe 72, it is delivered to the interior of the air outlet plates 76 on both sides of the discharge end shell 73. The gas is then blown onto the stacked flexible circuit board material through the slots on the sides of the air outlet plates 76. When the upper frame plate 54 moves closer to the discharge end shell 73, it presses a switch on the front side of the discharge end shell 73, which controls the conveyor belt 75 to be in working condition and drives the air outlet plates 76 to transfer the contacted material from the discharge trough 74. During this process, the flip box 78 rotates around the flip shaft 77 under the action of the reciprocating spring and pushes the pressure roller 79 to press the upper surface of the material, so that the material is aligned with the discharge slot 74. This prevents the flexible material from bending and deforming and failing to be accurately transferred out of the discharge slot 74. By blowing air on both sides of the circuit material, the stacked materials will not adhere to each other due to static electricity, thus affecting normal discharge. In addition, the flip box 78 presses the inner wall of the discharge end shell 73 from the side, so that the materials stacked between the discharge end shell 73 and the flip box 78 are squeezed to prevent the stacked materials from completely adhering to each other, forming a micro air cushion isolation layer between the material layers to avoid physical contact.

[0049] This invention provides a laser cutting device for flexible printed circuit boards. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A flexible circuit board laser cutting device, comprising a support frame (1), characterized in that: A laser cutting assembly (2) is installed at the top center of the support frame (1), a processing table (3) is fixedly connected to the inner side of the support frame (1), a guide groove plate (4) is fixedly connected above the processing table plate (3), and an adsorption flipping mechanism (5) is provided at the top center of the guide groove plate (4). The adsorption flipping mechanism (5) includes four sprockets (51). The four rotatable sprockets (51) are respectively installed at the four corners of the bottom surface of the processing table (3). The outer sides of the two sprockets (51) on the same side are connected to a chain (52). The outer surface of the chain (52) on each side is fixedly connected to a chain block (57). The top surface of the chain block (57) is fixedly connected to a bottom slide (53). The bottom slide (53) is slidably connected to an upper frame plate (54). The upper surface of the upper frame plate (54) is hinged to a flipping plate (55). The inside of the flipping plate (55) is fixedly connected to an air cavity plate (56). The bottom surface of the air cavity plate (56) is fixedly connected to an air supply pipe (514). The outer side of the air supply pipe (514) is provided with a sliding pipe groove (516). The sliding pipe groove (516) extends from the upper surface of the guide groove plate (4) to the bottom surface of the processing table (3). A collection mechanism (6) is provided at the upper front end of the guide trough plate (4), a feeding mechanism (7) is provided at the rear side of the adsorption and flipping mechanism (5), and an air pump (8) is installed on the bottom surface of the processing table (3). A gear (58) is provided between the hinge of the flip plate (55) and the upper frame plate (54), and a toothed rod (510) is meshed with the bottom surface of the gear (58). A spring plate (511) is fixedly connected to the front end of the toothed rod (510). The end of the spring plate (511) away from the toothed rod (510) is fixedly connected to the front side of the upper frame plate (54). A guide channel for guiding the sliding of the bottom slide (53) is opened on the upper surface of the front half of the guide groove plate (4), and an elastic push block (512) and a positioning block (513) are respectively provided on the inner side of the guide channel. A stop bar (59) is fixedly connected to the upper surface of the flip plate (55), and guide wheels (515) are installed on both the front and rear sides of the upper frame plate (54). The air pump (8) is connected to a suction pipe (81) and an exhaust pipe (82) on its side. The end of the suction pipe (81) away from the air pump (8) is fixedly connected to a valve block (83). A sliding block (84) is slidably connected inside the valve block (83). A right-angle through groove (85) and a vertical through groove (89) are respectively opened inside the front and rear ends of the sliding block (84). An air intake port (86) is provided on the side of the right-angle through groove (85). An arc-shaped push rod (87) is fixedly connected to the bottom surface of the sliding block (84). A spring rod (88) is fixedly connected to the rear end of the sliding block (84).

2. The flexible circuit board laser cutting equipment according to claim 1, characterized in that: Two vertical sliding rods extend upward from the top surface of the bottom slide (53), and a reciprocating spring is provided on the outer side of the vertical sliding rod. The two ends of the reciprocating spring are fixedly connected to the bottom slide (53) and the upper frame plate (54) respectively. The interior of the air cavity plate (56) is a hollow structure, and multiple small holes for air outlet are opened on the top surface of the air cavity plate (56). Both gears (58) are fixedly connected to the flip plate (55). The rack (510) is slidably connected to the upper frame plate (54). The positioning block (513) is fixed to the guide groove plate (4) with an adjustable screw. The elastic push block (512) is slidably connected to the guide groove of the guide groove plate (4). An elastic spring is fixedly connected between the elastic push block (512) and the positioning block (513). The guide wheel (515) is slidably connected to the guide groove of the guide groove plate (4).

3. The flexible circuit board laser cutting equipment according to claim 2, characterized in that: The top surface of the valve block (83) is fixedly connected to the air supply pipe (514), and a return spring is provided on the outside of the spring rod (88), and the two ends of the return spring are fixedly connected to the sliding block (84) and the valve block (83) respectively.

4. The flexible circuit board laser cutting equipment according to claim 3, characterized in that: The collection mechanism (6) includes a waste trough end (61), which is fixedly connected to the front bottom surface of the guide trough plate (4). A receiving trough end (62) is provided at the rear end of the waste trough end (61). A material distribution inclined plate (63) is fixedly connected to the inner top of the receiving trough end (62) and the waste trough end (61). A plurality of material distribution grooves (64) are provided on the upper surface of the material distribution inclined plate (63). An air extraction strip (65) is provided directly below the material distribution groove (64). An air suction pipe (69) is fixedly connected to the end of the air suction port (86) away from the sliding block (84). A side transverse groove (66) is provided on the side of the air extraction strip (65). A groove plate (67) is fixedly connected to the bottom of the inner wall of the receiving trough end (62). A plurality of collection grooves (68) are provided on the surface of the groove plate (67).

5. The flexible circuit board laser cutting equipment according to claim 4, characterized in that: The receiving trough end (62) is fixedly connected to the guide trough plate (4), the suction pipe (69) passes through the outer wall of the receiving trough end (62) to the inside of the receiving trough end (62), and the suction strip (65) is fixedly connected to the suction pipe (69).

6. The flexible circuit board laser cutting equipment according to claim 5, characterized in that: The feeding mechanism (7) includes an air supply bar (71), which is fixedly connected to the end of the exhaust pipe (82). A branch pipe (72) is fixedly connected to the top surface of the air supply bar (71), and a feeding end shell (73) is fixedly connected to the top of the branch pipe (72). An air outlet plate (76) is fixedly connected to the inner walls of both sides of the feeding end shell (73). An electrically driven conveyor belt (75) is installed on the bottom surface of the feeding end shell (73). A flipping shaft (77) is fixedly connected between the two air outlet plates (76). A flipping box (78) is rotatably connected to the outside of the flipping shaft (77). A pressure roller (79) is rotatably connected to the bottom of the flipping box (78). A feeding groove (74) is opened on the front side of the feeding end shell (73).

7. The flexible circuit board laser cutting equipment according to claim 6, characterized in that: The air supply bar (71) is provided with filter material inside. The discharge end shell (73) is fixedly connected to the inner side of the rear end of the support frame (1). The side of the flip box (78) is provided with a reciprocating spring, and the two ends of the reciprocating spring are fixedly connected to the flip box (78) and the discharge end shell (73) respectively. The side of the air outlet plate (76) is provided with a slot.

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