A flexible circuit board chipless cutting device

Abstract

This utility model proposes a chip-free cutting device for flexible circuit boards, including a base. Conveying mechanisms are fixedly installed on both sides of the top of the base. A chip removal and purification mechanism is fixedly installed in the middle of the front top of the base. Mounting arms are fixedly installed in the middle of the rear top of the base. A laser cutting mechanism is fixedly installed on the top of each mounting arm. This device uses a suction fan and suction hood to create negative pressure in the laser cutting area, rapidly sucking in micron-sized chips, fumes, and volatile organic compounds generated during cutting. After entering the filter box, the mixture first has large particles of chipped material intercepted by the filter screen, and then the activated carbon adsorption plate deeply adsorbs harmful gases, achieving dual purification. Simultaneously, the filter screen uses a sliding connection, along with a sealing cover, limiting arm, and hand-tightening screw, facilitating chip cleaning and adsorption plate replacement, ensuring long-term efficient operation of the chip removal and purification mechanism, and protecting the cleanliness of the working environment and the health of the operators.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board cutting technology, and in particular to a chipless cutting device for flexible circuit boards. Background Technology

[0002] With the increasing trend of electronic devices towards high density and miniaturization, flexible printed circuit boards (FPCs) have become key components in modern electronic product manufacturing due to their advantages such as being able to bend, roll, and fold freely, being able to be flexibly laid out in three-dimensional space, and being able to integrate component assembly and wire connection. However, the flexible printed circuit board cutting equipment currently on the market generally suffers from complex structure and inconvenient processing. The laser emitter of some equipment has poor stability during the cutting process, which directly affects the flatness of the flexible printed circuit board cutting.

[0003] To address these issues, Chinese patent CN209902491U discloses a flexible circuit board cutting machine. This device, through its structural design including a work frame, electric push rod, and clamping body, improves cutting stability and ensures the flatness of the cut surface to some extent. However, in practical applications, this device still has significant drawbacks. First, despite employing laser cutting technology, the equipment lacks an effective dust and debris prevention structure. During laser cutting, the high-energy laser beam causes the flexible circuit board material to vaporize, melt, or decompose instantaneously. The vaporized gaseous material condenses into micron-sized debris upon cooling, and the incompletely vaporized molten material splashes and cools to form solid residue. These debris are highly prone to scattering, potentially contaminating the work area. In addition to the working environment, the debris may also adhere to the surface of the circuit board, affecting product quality and subsequent assembly. Secondly, the thermal decomposition of materials will produce harmful gases such as fumes and volatile organic compounds (VOCs), and may even produce acidic gases under special circumstances. However, the equipment is not equipped with any filtration and purification devices. Once harmful gases diffuse into the working environment, they will pose a potential threat to the health of operators and will not meet environmental protection requirements. Furthermore, the untreated emission of harmful gases may also lead to environmental penalties for enterprises and increase operating costs. It is evident that the existing flexible circuit board cutting equipment is significantly inadequate in dealing with the debris and harmful gases generated during the cutting process, and its design needs to be improved to meet actual production needs and environmental standards. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a chipless cutting device for flexible circuit boards, which can more accurately solve the problems described above.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model proposes a chipless cutting device for flexible circuit boards, including a base, a conveying mechanism fixedly installed on both sides of the top of the base, a chip removal and purification mechanism fixedly installed in the middle of the front side of the top of the base, an mounting arm fixedly installed in the middle of the rear side of the top of the base, a laser cutting mechanism fixedly installed on the top of the mounting arm, and a positioning mechanism fixedly installed on both sides of the laser cutting mechanism.

[0007] The conveying mechanism includes a concave seat, which is fixedly installed on both sides of the top of the base. The upper part of the concave seat is rotatably connected to a lower guide roller arranged linearly at equal intervals. A drive assembly is fixedly installed on the upper front of the concave seat, and the output end of the drive assembly is fixedly connected to the front of the lower guide roller.

[0008] Furthermore, the drive assembly includes side plates and worm gears. The side plates are fixedly installed on both sides of the upper front end of the concave seat. The worm gears are rotatably connected to the upper front end of the concave seat in a linear arrangement with equal spacing. A worm is rotatably connected between the inner sides of the side plates. The worm and the worm gear are connected by a drive. The back of the worm gear is fixedly connected to the front end of the lower guide roller. A drive motor is fixedly installed on the outer side of one side plate. The output end of the drive motor is fixedly connected to the end of the worm.

[0009] Furthermore, the laser cutting mechanism includes a top rail, which is fixedly installed on the top of the mounting arm. A first electric push rod is fixedly installed on the top of the top rail. A connecting rod is fixedly installed at the output end of the first electric push rod. A slider is fixedly installed through the outer end of the connecting rod and is slidably connected to the inside of the top rail. A second electric push rod is fixedly installed at the bottom of the slider, and a laser cutting head is fixedly installed at the output end of the second electric push rod.

[0010] Furthermore, the positioning mechanism includes a fixed plate, which is fixedly installed on the middle of both sides of the top rail. A third electric push rod is fixedly installed at the top outer end of the fixed plate. The output end of the third electric push rod passes through the fixed plate and is fixedly installed with a positioning plate. A hinge frame is fixedly connected to the bottom of the positioning plate in a linear arrangement at equal intervals. An upper guide roller is rotatably connected inside the hinge frame. The positioning plate covers the top of the concave seat.

[0011] Furthermore, the dust removal and purification mechanism includes a suction hood, which is fixedly installed in the middle of the top of the base. A filter box is fixedly installed on the lower front of the suction hood. The input end of the filter box is connected to the output end of the suction hood. A filter assembly is movably installed inside the filter box. A suction fan is fixedly installed on one side of the filter box. The input end of the suction fan is connected to the inside of the filter box.

[0012] Furthermore, the filter assembly includes a filter screen box, which is slidably connected to the inside of the filter box. A sealing cover is fixedly installed on the front of the filter screen box, covering the front of the filter box. An activated carbon adsorption plate is fixedly installed inside the filter screen box on the side near the suction fan.

[0013] Furthermore, a limiting arm is fixedly installed on the top of the sealing cover, and an installation screw is fixedly connected to the end of the limiting arm. The end of the installation screw passes through the limiting arm. A limiting hole is opened in the middle of the side of the top of the filter box near the installation screw. The end of the installation screw is inserted into the limiting hole. The installation screw is a hand-tightening screw.

[0014] The beneficial effects of this utility model are:

[0015] 1. This device uses a suction fan and suction hood to create negative pressure in the laser cutting area, quickly sucking in micron-sized debris, fumes, and volatile organic compounds generated during cutting. After the mixture enters the filter box, large debris is first intercepted by the filter screen, and then harmful gases are deeply adsorbed by the activated carbon adsorption plate, achieving dual purification. At the same time, the filter screen adopts a sliding connection, with a sealing cover, limiting arm, and hand-tightening screw, which facilitates the cleaning of debris and replacement of the adsorption plate, ensuring the long-term efficient operation of the debris removal and purification mechanism, and protecting the clean working environment and the health of operators.

[0016] 2. During the application of this device, after the flexible circuit board is placed on the lower guide roller, the upper guide roller and the lower guide roller are clamped by activating the third electric push rod. The upper guide roller is connected to the positioning plate through the hinge frame, which can adaptively adjust the angle to closely fit circuit boards of different shapes and thicknesses. Two independent drive motors drive the lower guide roller through worm gears to precisely control the movement of the circuit board to below the laser cutting head, and pull its two ends taut before cutting to avoid deformation during cutting, thus providing a reliable guarantee for high-precision and high-quality cutting.

[0017] 3. During the application of this device, when cutting, the first electric push rod drives the laser cutting head to move horizontally, and the second electric push rod controls its vertical downward movement to accurately complete the cutting path. After cutting, the drive motor drives the lower guide roller to discharge the finished product, and at the same time automatically transports a new circuit board to be cut to the cutting position. No frequent manual intervention is required, realizing continuous and uninterrupted rapid cutting of flexible circuit boards. This process greatly improves processing efficiency and meets the production needs of modern electronic products for high density, miniaturization and high reliability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the disassembled structure of the filter component of this utility model;

[0020] Figure 3 This is a front view structural diagram of the laser cutting mechanism and positioning mechanism of this utility model;

[0021] Figure 4 This is a bottom view of the laser cutting mechanism and positioning mechanism of this utility model.

[0022] In the diagram: 1. Base; 2. Conveying mechanism; 21. Concave seat; 22. Lower guide roller; 23. Drive assembly; 231. Side plate; 232. Worm gear; 233. Worm; 234. Drive motor; 3. Chip removal and purification mechanism; 31. Suction hood; 32. Filter box; 33. Filter assembly; 331. Filter screen box; 332. Sealing cover; 333. Activated carbon adsorption plate; 334. Limiting arm; 335. Mounting screw; 336. Limiting hole; 34. Suction fan; 4. Mounting arm; 5. Laser cutting mechanism; 51. Top rail; 52. First electric push rod; 53. Connecting rod; 54. Slider; 55. Second electric push rod; 56. Laser cutting head; 6. Positioning mechanism; 61. Fixing plate; 62. Third electric push rod; 63. Positioning plate; 64. Hinge frame; 65. Upper guide roller. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] A chipless cutting device for flexible circuit boards includes a base 1, a conveying mechanism 2 fixedly installed on both sides of the top of the base 1, a chip removal and purification mechanism 3 fixedly installed in the middle of the front side of the top of the base 1, an mounting arm 4 fixedly installed in the middle of the rear side of the top of the base 1, a laser cutting mechanism 5 fixedly installed on the top of the mounting arm 4, and a positioning mechanism 6 fixedly installed on both sides of the laser cutting mechanism 5.

[0026] The conveying mechanism 2 includes a concave seat 21, which is fixedly installed on both sides of the top of the base 1. Lower guide rollers 22 are rotatably connected to the upper part of the concave seat 21 in a linear arrangement at equal intervals. A drive assembly 23 is fixedly installed on the upper front of the concave seat 21, and the output end of the drive assembly 23 is fixedly connected to the front of the lower guide rollers 22. When this flexible circuit board chipless cutting device is running, the base 1 first provides stable support for each mechanism. After the drive assembly 23 in the conveying mechanism 2 is started, the drive motor 234 drives the worm gear 233 to rotate. The worm gear 233 is driven by the worm wheel 232, which in turn drives the lower guide rollers 22 connected to the worm wheel 232 to rotate synchronously. The lower guide rollers 22 are arranged at equal intervals inside the concave seat 21 and can rotate freely. Through the friction generated by the rotation, the rollers placed on it... The flexible circuit board is transported smoothly. During the transport process, the third electric push rod 62 in the positioning mechanism 6 pushes the positioning plate 63 downward, so that the upper guide roller 65 and the lower guide roller 22 cooperate to firmly clamp the flexible circuit board from the top and bottom. Under the action of the first electric push rod 52 and the second electric push rod 55, the laser cutting mechanism 5 realizes the horizontal displacement and vertical downward movement of the laser cutting head 56 respectively, and completes the precise cutting of the circuit board. At the same time, the suction fan 34 in the chip removal and purification mechanism 3 starts, and the suction hood 31 forms a negative pressure in the cutting area, sucking the chips and harmful gases generated by cutting into the filter box 32. After being purified by the filter screen box 331 and the activated carbon adsorption plate 333, the cutting process is clean and environmentally friendly. All mechanisms work together to achieve efficient and stable cutting of flexible circuit boards.

[0027] Combination Figures 1-2 As shown, the drive assembly 23 includes a side plate 231 and a worm gear 232. The side plate 231 is fixedly installed on both sides of the upper front of the concave seat 21. The worm gears 232 are linearly arranged at equal intervals and rotatably connected to the upper front of the concave seat 21. A worm 233 is rotatably connected between the inner sides of the side plates 231. The worm 233 and the worm gear 232 are connected by a transmission. The back of the worm gear 232 is fixedly connected to the front end of the lower guide roller 22. A drive motor 234 is fixedly installed on the outer side of one side plate 231. The output end of the drive motor 234 and the worm gear 232 are connected by a transmission. The end of 33 is fixedly connected. The laser cutting mechanism 5 includes a top rail 51, which is fixedly installed on the top of the mounting arm 4. A first electric push rod 52 is fixedly installed on the top of the top rail 51. A connecting rod 53 is fixedly installed at the output end of the first electric push rod 52. A slider 54 is fixedly installed through the top rail 51 at the outer end of the connecting rod 53. The slider 54 is slidably connected to the inside of the top rail 51. A second electric push rod 55 is fixedly installed at the bottom of the slider 54. A laser cutting head 56 is fixedly installed at the output end of the second electric push rod 55.

[0028] In the above-described embodiments of this application, when the flexible circuit board cutting device is running, the drive component 23 and the laser cutting mechanism 5 work together. After the drive motor 234 starts, its output end drives the worm 233 to rotate. Since the worm 233 is connected to the worm wheels 232 arranged at equal intervals, the worm wheels 232 rotate accordingly. Since the back of the worm wheel 232 is fixed to the front end of the lower guide roller 22, the lower guide roller 22 is driven to rotate synchronously, realizing the smooth transport of the flexible circuit board placed on it. At the same time, the laser cutting mechanism 5 starts to operate. After the first electric push rod 52 starts, its output end pushes the connecting rod 53, causing the slider 54 connected to the connecting rod 53 to slide inside the top rail 51, realizing the horizontal displacement of the laser cutting head 56, which can adjust the laser cutting head 56 to the target cutting position. When it is necessary to adjust the cutting height, the second electric push rod 55 starts, and its output end pushes the laser cutting head 56 to move vertically up and down, accurately controlling the distance between the laser cutting head 56 and the flexible circuit board, so as to emit a laser beam to cut the circuit board. The cooperation of the two ensures the efficiency and accuracy of the cutting.

[0029] Example 2

[0030] Combination Figures 1-4 As shown, the positioning mechanism 6 includes a fixed plate 61, which is fixedly installed on the middle of both sides of the top rail 51. A third electric push rod 62 is fixedly installed on the outer top of the fixed plate 61. The output end of the third electric push rod 62 passes through the fixed plate 61 and is fixedly installed with a positioning plate 63. A hinge frame 64 is fixedly connected to the bottom of the positioning plate 63 in a linear arrangement at equal intervals. An upper guide roller 65 is rotatably connected inside the hinge frame 64. The positioning plate 63 covers the top of the concave seat 21. The chip removal and purification mechanism 3 includes a suction hood 31, which is fixedly installed in the middle of the top of the base 1. A filter box 32 is fixedly installed on the lower front of the suction hood 31. The input end of the filter box 32 is connected to the output end of the suction hood 31. A filter assembly 33 is movably installed inside the filter box 32. A suction fan 3 is fixedly installed on one side of the filter box 32. 4. The input end of the suction fan 34 is connected to the inside of the filter box 32. The filter assembly 33 includes a filter screen box 331, which is slidably connected to the inside of the filter box 32. A sealing cover plate 332 is fixedly installed on the front of the filter screen box 331, covering the front of the filter box 32. An activated carbon adsorption plate 333 is fixedly installed inside the filter screen box 331 on the side near the suction fan 34. A limiting arm 334 is fixedly installed on the top of the sealing cover plate 332. An installation screw 335 is fixedly connected to the end of the limiting arm 334. The end of the installation screw 335 passes through the limiting arm 334. A limiting hole 336 is opened in the middle of the top of the filter box 32 on the side near the installation screw 335. The end of the installation screw 335 is inserted into the inside of the limiting hole 336. The installation screw 335 is a hand-tight screw.

[0031] In the above-described embodiments of this application, during the operation of the flexible circuit board cutting device, the positioning mechanism 6 and the chip removal and purification mechanism 3 work together to ensure the stability and environmental friendliness of the cutting process. When the flexible circuit board is transported to the cutting area, the third electric push rod 62 of the positioning mechanism 6 is activated, and its output end pushes the positioning plate 63 downward, so that the upper guide roller 65 covering the top of the concave seat 21 cooperates with the lower guide roller 22 to clamp the circuit board from the top and bottom. The upper guide roller 65 is connected to the positioning plate 63 through the hinge frame 64, which can adaptively adjust the angle to closely fit circuit boards of different thicknesses and shapes, ensuring that the circuit board is stable and does not shift during cutting. At the same time, When the suction fan 34 of the dust removal and purification mechanism 3 is activated, a negative pressure is formed at the suction hood 31, which quickly sucks in the debris and harmful gases generated by laser cutting. After the mixture enters the filter box 32 through the suction hood 31, large particles of debris are first intercepted by the filter screen box 331, which is slidably connected inside the filter box 32. Then, the activated carbon adsorption plate 333 deeply purifies the volatile organic compounds and other harmful gases. When cleaning and maintenance are required, the operator only needs to turn the hand-operated installation screw 335 to release the limit arm 334 from fixing the filter box 32, and then the filter screen box 331 can be pulled out for cleaning or the activated carbon adsorption plate 333 can be replaced to ensure the continuous and efficient operation of the purification mechanism.

[0032] The working principle and advantages of this utility model are as follows: During the laser cutting of flexible circuit boards, the material is instantly vaporized, melted or decomposed by the high-energy laser beam, which will generate a large number of micron-sized debris and harmful gases such as smoke and volatile organic compounds. At this time, the suction fan 34 is started and the suction hood 31 fixedly installed in the middle of the top of the base 1 can form a negative pressure environment in the laser cutting area, which will quickly suck in the debris and harmful gases generated during the cutting process.

[0033] The inhaled mixture enters the filter box 32 connected to it through the output end of the suction hood 31. The fine mesh structure of the filter box 331 can effectively intercept larger particles of debris, preventing them from entering the subsequent purification stage and causing blockage. The gas that has passed the initial filtration continues to flow into the filter box 32 and reaches the activated carbon adsorption plate 333 near the suction fan 34. With its rich porous structure and huge specific surface area, the activated carbon adsorption plate 333 uses the principles of physical adsorption and partial chemical adsorption to deeply adsorb harmful gases such as flue gas and volatile organic compounds. The micropores of activated carbon can capture harmful gas molecules and firmly adsorb them on the pore surface, thereby achieving the removal of harmful gases.

[0034] Throughout the purification process, the suction fan 34 provides a continuous and stable suction force. It is fixedly installed on one side of the filter box 32 and connected to the inside of the filter box 32 through its input end. It draws out the air purified by the filter assembly 33 and discharges it into the external environment. In order to facilitate the maintenance and replacement of the filter assembly 33, the filter screen box 331 is installed inside the filter box 32 by a sliding connection. The front sealing cover 332 can effectively prevent the leakage of unfiltered gas. The design of the limiting arm 334 and the hand-tightening installation screw 335 at the top of the sealing cover 332 allows the operator to easily disassemble and install the filter screen box 331. When too much debris accumulates in the filter screen box 331 or the activated carbon adsorption plate 333 is saturated, it can be cleaned and replaced in time to ensure that the dust removal and purification mechanism 3 always maintains a high-efficiency working state.

[0035] When performing flexible circuit board cutting, the flexible circuit board to be cut is first placed on the lower guide rollers 22 inside the concave seats 21 on both sides of the top of the base 1. The lower guide rollers 22 are linearly arranged at equal intervals and can rotate freely, providing a stable support surface for the circuit board. At this time, the third electric push rod 62 in the positioning mechanism 6 is activated, and its output end pushes the positioning plate 63 to move down, so that the upper guide roller 65 in the hinge frame 64 at the bottom of the positioning plate 63 cooperates with the lower guide roller 22 to firmly clamp the flexible circuit board from both the top and bottom. The upper guide roller 65 is connected to the positioning plate 63 through the hinge frame 64, and can automatically adjust the angle according to the shape and thickness of the circuit board during the clamping process to ensure the tightness and stability of the clamping.

[0036] After clamping is completed, two independently configured drive motors 234 are started. The output end of the drive motors 234 is connected to the worm gear 233. When the worm gear 233 rotates, it drives the worm wheels 232 arranged at equal intervals to rotate, thereby driving the lower guide roller 22, which is fixedly connected to the back of the worm wheel 232, to rotate synchronously. Through the coordinated work of the two drive motors 234, the movement of the circuit board can be precisely controlled and it can be smoothly transported to the bottom of the laser cutting head 56. When the circuit board reaches the designated position, the two drive motors 234 are started again. The rotation of the lower guide roller 22 pulls the two ends of the flexible circuit board, making it taut. This taut state can effectively prevent the circuit board from deforming due to uneven force during the cutting process, ensuring the cutting accuracy and flatness.

[0037] Subsequently, the first electric push rod 52 in the laser cutting mechanism 5 is activated, and its output end drives the connecting rod 53 to move, thereby causing the slider 54 fixed at the outer end of the connecting rod 53 to make linear displacement inside the top rail 51, thereby realizing the horizontal position adjustment of the laser cutting head 56. At the same time, the second electric push rod 55 is activated, and its output end pushes the laser cutting head 56 to move vertically downward, so that the laser cutting head 56 approaches and aligns with the flexible circuit board. When the laser cutting head 56 reaches the appropriate cutting position, it emits a high-energy laser beam to cut the circuit board. During the cutting process, the first electric push rod 52 continuously drives the laser cutting head 56 to move along the preset cutting path to complete the entire cutting operation.

[0038] After cutting is completed, the drive motor 234 is restarted to rotate the lower guide roller 22, which discharges the cut flexible circuit board from the output end. At the same time, the drive motor 234 at the other input end runs, driving the lower guide roller 22 inside its concave seat 21 to rotate, which transports the flexible circuit board to be cut to the bottom of the laser cutting head 56, thereby realizing continuous and uninterrupted rapid cutting of flexible circuit boards. This efficient cutting process and transmission method greatly improves the processing efficiency of flexible circuit boards and meets the strict requirements of modern electronic product manufacturing for production efficiency and product quality.

[0039] To achieve automated cutting of flexible circuit boards, various sensors and corresponding control systems can be installed. At the conveying mechanism 2, a photoelectric sensor is installed at the front end of the concave seat 21 to detect whether the circuit board has been conveyed to the correct position. The signal is fed back to the drive assembly 23 control system, which promptly starts and stops the drive motor 234. A displacement sensor is installed on the top rail 51 of the laser cutting mechanism 5 to monitor the horizontal and vertical displacement of the slider 54 and the laser cutting head 56 in real time, ensuring accurate cutting path. The data is transmitted to the electric push rod control system for dynamic adjustment. A pressure sensor is installed on the side plate 231 of the positioning mechanism 6 to sense the pressure of the upper guide roller 65 and lower guide roller 22 clamping the circuit board. This pressure is then transmitted via a third electric... The control system of the push rod 62 adjusts the clamping force to avoid damage to the circuit board due to excessive tightness or displacement due to excessive looseness; a gas concentration sensor is installed in the filter box 32 of the chip removal and purification mechanism 3 to monitor the residual concentration of harmful gases. If the concentration exceeds the standard, it will be fed back to the control system of the suction fan 34 to increase the suction or prompt the replacement of the activated carbon adsorption plate 333. Each sensor and its control system work closely together and are integrated into the control module of the corresponding mechanism. Data interaction and collaborative control are achieved through bus or wireless communication technology to ensure the automated and intelligent operation of the cutting process. The above-mentioned intelligent control methods are conventional intelligent control methods in the existing technology. The existing technology is very mature and therefore will not be described in detail here.

[0040] In this flexible circuit board chipless cutting device, the base 1 is made of high-strength 6061 aluminum alloy, with dimensions of approximately 1500mm × 1000mm × 800mm; the concave seat 21 of the conveying mechanism 2 is made of SUS304 stainless steel, the lower guide roller 22 has a diameter of 20-30mm and is hard chrome plated, the worm gear 233 and worm wheel 232 of the drive assembly 23 are made of 45# steel with a module of 2-3, and the drive motor 234 has a power of 0.5-1kW; the top rail 51 of the laser cutting mechanism 5 is made of European standard 4040 aluminum profile, and the strokes of the first electric push rod 52, the second electric push rod 55 and the third electric push rod 62 are... The laser cutting head 56 has a power of 20-100W and a diameter of 300-500mm (horizontal) and 50-100mm (vertical). The side plate 231 and positioning plate 63 of the positioning mechanism 6 are made of aluminum alloy. The upper guide roller 65 has a diameter of 15-20mm and a polyurethane coating. The third electric push rod 62 has a stroke of 50-80mm. The suction hood 31 of the chip removal and purification mechanism 3 is made of galvanized steel plate. The filter box 331 has a mesh size of 80-120. The activated carbon adsorption plate 333 has an iodine value of ≥800mg / g. The suction fan 34 has an air volume of 2000-3000m³ / h and a wind pressure of 1000-1500Pa. Regarding electronic components, the drive motor 234 uses a 24V DC power supply, model Leadshine M542H paired with a 57 series stepper motor; the first electric actuator 52, the second electric actuator 55, and the third electric actuator 62 are powered by a 24V DC power supply, model JINGGONGJT-06; the photoelectric sensor (E3Z-D62), displacement sensor (RGH22Z01C01), pressure sensor (Honeywell SCLTD series), and gas concentration sensor (MQ-135) are powered by 12-24V, 5V, 10-30V, and 5V respectively, and the output signals are conditioned and processed by a Siemens S7-200 SMART PLC controller; the laser cutting head 56 is model YLPN-50-S2-SM from IPG Photonics, and is powered by wires. The above technical means are all conventional technical means in the existing technology, so they will not be described in detail here.

[0041] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A chipless cutting device for flexible circuit boards, characterized in that, Includes a base (1), on both sides of the top of the base (1) a conveying mechanism (2) is fixedly installed, on the middle of the front side of the top of the base (1) a chip removal and purification mechanism (3) is fixedly installed, on the middle of the rear side of the top of the base (1) an installation arm (4) is fixedly installed, on the top of the installation arm (4) a laser cutting mechanism (5) is fixedly installed, and on both sides of the laser cutting mechanism (5) a positioning mechanism (6) is fixedly installed. The conveying mechanism (2) includes a concave seat (21), which is fixedly installed on both sides of the top of the base (1). The upper part of the concave seat (21) is rotatably connected with a lower guide roller (22) arranged linearly at equal intervals. A drive assembly (23) is fixedly installed on the upper front of the concave seat (21). The output end of the drive assembly (23) is fixedly connected to the front of the lower guide roller (22).

2. The flexible circuit board chipless cutting device according to claim 1, characterized in that, The drive assembly (23) includes a side plate (231) and a worm gear (232). The side plate (231) is fixedly installed on both sides of the upper front of the concave seat (21). The worm gears (232) are rotatably connected to the upper front of the concave seat (21) in a linear arrangement with equal spacing. A worm (233) is rotatably connected between the inner sides of the side plate (231). The worm (233) and the worm gear (232) are connected in a transmission. The back of the worm gear (232) is fixedly connected to the front end of the lower guide roller (22). A drive motor (234) is fixedly installed on the outer side of one side plate (231). The output end of the drive motor (234) is fixedly connected to the end of the worm gear (233).

3. The chipless cutting device for flexible circuit boards according to claim 1, characterized in that, The laser cutting mechanism (5) includes a top rail (51), which is fixedly installed on the top of the mounting arm (4). A first electric push rod (52) is fixedly installed on the top of the top rail (51). A connecting rod (53) is fixedly installed at the output end of the first electric push rod (52). A slider (54) is fixedly installed through the top rail (51) at the outer end of the connecting rod (53). The slider (54) is slidably connected to the inside of the top rail (51). A second electric push rod (55) is fixedly installed at the bottom of the slider (54). A laser cutting head (56) is fixedly installed at the output end of the second electric push rod (55).

4. The chipless cutting device for flexible circuit boards according to claim 3, characterized in that, The positioning mechanism (6) includes a fixed plate (61), which is fixedly installed on the middle of both sides of the top rail (51). A third electric push rod (62) is fixedly installed on the top outer end of the fixed plate (61). The output end of the third electric push rod (62) passes through the fixed plate (61) and is fixedly installed with a positioning plate (63). The bottom of the positioning plate (63) is linearly arranged with equal spacing and is fixedly connected with a hinge frame (64). The inside of the hinge frame (64) is rotatably connected with an upper guide roller (65). The positioning plate (63) covers the top of the concave seat (21).

5. The chipless cutting device for flexible circuit boards according to claim 1, characterized in that, The chip removal and purification mechanism (3) includes a suction hood (31), which is fixedly installed in the middle of the top of the base (1). A filter box (32) is fixedly installed on the lower front end of the suction hood (31). The input end of the filter box (32) is connected to the output end of the suction hood (31). A filter assembly (33) is movably installed inside the filter box (32). A blower (34) is fixedly installed on one side of the filter box (32). The input end of the blower (34) is connected to the inside of the filter box (32).

6. The chipless cutting device for flexible circuit boards according to claim 5, characterized in that, The filter assembly (33) includes a filter screen box (331), which is slidably connected to the inside of the filter box (32). A sealing cover plate (332) is fixedly installed on the front of the filter screen box (331), which covers the front of the filter box (32). An activated carbon adsorption plate (333) is fixedly installed on the side of the filter screen box (331) near the suction fan (34).

7. The chipless cutting device for flexible circuit boards according to claim 6, characterized in that, A limiting arm (334) is fixedly installed on the top of the sealing cover (332). An installation screw (335) is fixedly connected to the end of the limiting arm (334). The end of the installation screw (335) passes through the limiting arm (334). A limiting hole (336) is opened in the middle of the side of the top of the filter box (32) near the installation screw (335). The end of the installation screw (335) is inserted into the limiting hole (336). The installation screw (335) is a hand-tightening screw.

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