Dust-free slitting and cutting machine for PCB cutting equipment

Abstract

The invention relates to the technical field of base material slitting and cutting, and discloses a dust-free slitting and cutting machine used on PCB cutting equipment, the dust-free slitting and cutting machine comprises a mounting plate, the top surface of the mounting plate is fixedly connected with a top plate, the top surface of the top plate is fixedly connected with a hydraulic rod, the bottom end of the hydraulic rod is fixedly connected with a lower pressing plate, and the lower pressing plate is fixedly connected with an upper pressing plate. A cutting mechanism is arranged below the lower pressing plate; the cutting mechanism comprises two connecting rod fixing plates, two vertical sliding rods are fixedly connected to the bottom faces of the connecting rod fixing plates, a lifting frame is slidably connected to the outer surfaces of the vertical sliding rods, sliding groove guide plates are arranged on the front side and the rear side of the lifting frame correspondingly, and a right moving frame and a left moving frame are fixedly connected to the bottom faces of the two sliding groove guide plates correspondingly. The right moving frame and the left moving frame move relatively to drive the chuck end to get close to clamp the splicing chuck on the side face of the cutting disc, so that the splicing chuck is rapidly fixed and installed, and the splicing chuck can be rapidly replaced after being abraded subsequently.

Description

Technical Field

[0001] The present invention relates to the technical field of substrate slitting and cutting, and particularly to a dust-free slitting and cutting machine for PCB cutting equipment. Background Art

[0002] In the production of PCB (printed circuit board), circuit boards using PP substrates (polypropylene substrates) usually have good mechanical strength, chemical stability and low cost, so they are widely used in many applications. For a dust-free slitting and cutting machine for such substrates, its design and function pay more attention to reducing the dust that may be generated during the cutting process, protecting the production environment, and ensuring the cutting accuracy.

[0003] The patent with the publication number CN208946273U discloses a dust-free slitting device for CCL and PCB cutting equipment, including a fixed plate, a slide rail, a sliding frame, a mounting plate, a cylinder, a hot air shell, an air inlet pipe, a heating copper rod, a gas guide shell, a gas guide cavity, an exhaust shell, an air outlet hole, a slitting knife, a cylinder arm and a tool holder. This dust-free slitting device for CCL and PCB cutting equipment has a simple structure and novel design. The air in the hot air shell is heated by the heating copper rod, ensuring that the air in the hot air shell is discharged orderly through the air outlet holes on the surface of the air outlet shell, which is convenient for processing the white edges at the cut-off parts of CCL and PCB boards. When in use, under the action of the set slitting mechanism, the CCL and PCB boards are automatically cut, greatly reducing the labor intensity of manual cutting by workers and improving the slitting efficiency of CCL and PCB boards. It has a good market prospect and is suitable for popularization and use. However, this patent still has the problem that the cutting blade is prone to wear and is not easy to replace. Therefore, a dust-free slitting and cutting machine for PCB cutting equipment 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 dust-free slitting and cutting machine for PCB cutting equipment in view of the above-mentioned deficiencies in the prior art.

[0005] To solve the above technical problem, the technical solution adopted by the present invention is: a dust-free slitting and cutting machine for PCB cutting equipment, including a mounting plate, the top surface of the mounting plate is fixedly connected with a top plate, the top surface of the top plate is fixedly connected with a hydraulic rod, the bottom end of the hydraulic rod is fixedly connected with a lower pressing plate, and a cutting mechanism is arranged below the lower pressing plate; The cutting mechanism includes two connecting rod fixed plates. Two vertical sliding rods are fixedly connected to the bottom surface of the connecting rod fixed plates. A lifting frame is slidably connected to the outer surface of the vertical sliding rods. Chute guide plates are arranged on both the front and rear sides of the lifting frame. A right moving frame and a left moving frame are respectively fixedly connected to the bottom surfaces of the two chute guide plates. A plurality of connecting rod fixed seats are fixedly connected to the sides of the left moving frame and the right moving frame. One end of each connecting rod fixed seat away from the right moving frame or the left moving frame is fixedly connected to a chuck end. A positioning shaft disc is rotatably connected to the inner side of the chuck end. A splicing chuck is fitted and connected to the side surface of the positioning shaft disc. A cutting disc is fixedly connected to the edge surface of the splicing chuck. A transmission key rod is slidably connected to the side surface of the positioning shaft disc.

[0006] According to the above technical solution, a linkage vertical rod is slidably connected to the side of the right moving frame or the left moving frame. A thin rod slider is fixedly connected to the bottom end of the linkage vertical rod. A guiding cross bar is slidably connected to the side surface of the thin rod slider. Lower right moving frames or left moving frames are respectively arranged directly below the upper right moving frames or left moving frames.

[0007] According to the above technical solution, the top surface of the lifting frame is fixedly connected to the lower pressing plate. A chute is provided on the side surface of the chute guide plate, and the chute is formed by connecting an inclined chute and a vertical chute. A convex column extends outward from the chute guide plate and is slidably connected to the chute guide plate. The guiding cross bar is fixedly connected to the mounting plate. The chuck ends on the left and right sides of each cutting disc are taken as a group. The right moving frame located below is fixedly connected to the thin rod slider on the same side. When installing the cutting disc, align the splicing chuck on the side surface of the cutting disc with the positioning shaft disc on one side of the chuck end, and make the splicing chuck and the positioning shaft disc fit together. Then, control the hydraulic rod to extend downward, and push the lifting frame connected to the lower pressing plate to slide downward along the vertical sliding rod. At this time, the downward movement of the lifting frame pushes the chute on the side surface of the chute guide plate, so that the chute on the side surface of the chute guide plate drives the right moving frame and the left moving frame to move under force. When the right moving frame and the left moving frame move, the chuck end is driven through the connected connecting frame base, so that the chuck ends on both sides in the same group approach each other, and drive the positioning shaft discs inside the chuck ends on both sides to clamp the splicing chuck on the side surface of the cutting disc. When the chuck ends connected to the right moving frame and the left moving frame approach each other, the transmission key rod connected to the chuck end slides with the positioning shaft disc. When the positioning shaft disc on the side surface of one chuck end is driven to rotate by an external motor, the positioning shaft disc on the side surface of this chuck end drives the other positioning shaft disc to rotate through the connected transmission key rod, and this positioning shaft disc drives the positioning shaft disc on the other side at the connected position to rotate through fitting with the splicing chuck, so as to realize the synchronous rotation of multiple positioning shaft discs driving the splicing chuck. As the hydraulic rod is in a continuous extension state, the lifting frame continues to move downward, and the chute guide plate connected to the lifting frame moves from the inclined side chute to the connected vertical chute. At this time, the lifting frame will push the chute guide plate to move downward under vertical force. The downward movement of the chute guide plate will drive the right moving frame or the left moving frame to move downward along the connected linkage vertical rod, and make the right moving frame or the left moving frame above approach the right moving frame or the left moving frame below. In this way, the interval between the upper chuck end and the lower chuck end can be controlled to adjust the interval between the cutting discs to adjust the cutting thickness. The splicing chuck on the side surface of the cutting disc is clamped by the relative movement of the right moving frame and the left moving frame to drive the chuck end to approach, so that the splicing chuck can be quickly fixed and installed, so as to be quickly replaced in case of wear later.

[0008] According to the above technical solution, a detection module is installed on the side surface of the cutting mechanism, a hot pressing mechanism is arranged on the front side of the cutting mechanism, a tensioning mechanism is arranged below the hot pressing mechanism. A support plate is fixedly connected to the front side surface of the right moving frame located below. A guiding roller is rotatably connected to the bottom end of the support plate. A base material is arranged above the support plate.

[0009] According to the above technical solution, the detection module includes two connecting blocks, and the two connecting blocks are respectively fixedly connected to the front sides of the two chuck ends in the same group. One end of each of the two connecting blocks away from the chuck end is respectively fixedly connected with a power-on end and an alarm end. The power-on end and the alarm end are electrically connected to a power-on wire on the side. Elastic sheets are fixedly connected to the rear sides of the power-on end and the alarm end, and a metal contact piece is fixedly connected to the top surface of the elastic sheet. When the cutting disc is placed between the chuck ends, as the two chuck ends on both sides approach each other, the connecting blocks connected to the chuck ends on both sides of the same group respectively drive the power-on end and the alarm end to approach each other. The elastic sheets connected to the power-on end and the alarm end move together with them and fit against the side surface of the cutting disc. When the cutting disc wears and becomes thinner during use, the elastic sheets attached to both sides of the cutting disc will approach each other under the action of elasticity until the metal contact pieces connected to the elastic sheets approach and contact. At this time, the metal contact piece is in a conductive state with the buzzer built in the alarm end through the elastic sheet, and the buzzer built in the alarm end works.

[0010] According to the above technical solution, the hot pressing mechanism includes a hinge rod seat, a lower pressing hinge rod is rotatably connected to the inside of the hinge rod seat, a limiting block is fixedly connected to the bottom surface of the lower pressing hinge rod, an inclined groove rod is fixedly connected to the side surface of the lower pressing hinge rod, a sliding rod block is slidably connected to the outside of the inclined groove rod, a short hinge rod is rotatably connected to the side surface of the sliding rod block, a long hinge rod is hinged to the end of the short hinge rod away from the sliding rod block, a pressing plate is hinged to the side surface of the bottom end of the long hinge rod, an electric heating tube is fixedly connected to the upper surface of the pressing plate, a short column is fixedly connected to the middle of the top surface of the rear end of the pressing plate, a deviation correcting shaft rod is rotatably connected to the outer surface of the short column, deviation correcting wheels are rotatably connected to both ends of the deviation correcting shaft rod, and a pressing wheel is rotatably connected to the bottom end of the lower pressing hinge rod.

[0011] According to the above technical solution, a return spring is arranged on the outer side of the inclined chute rod, and both ends of the return spring are fixedly connected to the slide rod block and the downward pressing hinge rod respectively. A torsion spring is arranged on the outer side of the short column, and both ends of the torsion spring are fixedly connected to the short column and the alignment shaft rod respectively. There is damping between the downward pressing hinge rod and the hinge rod seat. When the upper right moving frame moves downward, the hinge rod seat connected to the right moving frame drives the downward pressing hinge rod to approach the pallet. When the pressing plate on the side of the downward pressing hinge rod fits the base material on the pallet, at this time, the pressing plate drives the slide rod block to slide along the short hinge rod and stretch the return spring through the force received by the extension plate slide rod connected thereto. At this time, the electric heating tube on the pressing plate transfers heat to the pressing plate through heating, and then contacts the base material through the pressing plate to heat the base material. The base material is kept flat by heating the pressing plate, and the thermoplasticity of the material is increased by heating the base material, so that the cut of the base material remains flat when being pressed and cut by the cutting disc, and dust generation during the cutting process is avoided by pressing and cutting. When the base material passes through the bottom surface of the pressing plate, the alignment wheels at both ends of the pressing plate will guide the movement of the base material. When the base material deviates towards one of the alignment wheels, the alignment wheel will drive the alignment shaft rod to deflect a small angle around the short column and twist the torsion spring under force. At this time, the deflected alignment wheel will deflect towards the side close to the right moving frame, and the offset of the alignment wheel is used to guide the base material to rotate away from the contacted alignment wheel along with the pressing wheel, so that the base material is centered above the pallet.

[0012] According to the above technical solution, the tensioning mechanism includes a vertical guide rod, a resilient extension rod is slidably connected to the bottom end of the vertical guide rod, a pressing link is fixedly connected to the bottom end of the resilient extension rod, a deflecting groove frame is slidably connected to the outer surface of the pressing link, a pressing material arc plate is hingedly connected to the bottom end of the deflecting groove frame, an extension plate slide rod is fixedly connected to the front side surface of the pressing material arc plate, an extending arc plate is slidably connected to the outer surface of the extension plate slide rod, a long connecting frame is fixedly connected to the bottom surface of the lower left moving frame, a short connecting frame is fixedly connected to the bottom surface of the lower right moving frame, a bracket plate is fixedly connected to the bottom surfaces of both the short connecting frame and the long connecting frame, a rotating shaft disc is rotatably connected to the bottom ends of both the short connecting frame and the long connecting frame, a keyway groove is formed on the side surface of the rotating shaft disc, a coil material wheel is arranged between the two rotating shaft discs, and convex bar discs are fixedly connected to both ends of the coil material wheel.

[0013] According to the above technical solution, the vertical guide rod is fixedly connected to the bottom surface of the lifting frame. An internal spring is provided inside the elastic extension rod, and both ends of the internal spring are fixedly connected to the vertical guide rod and the elastic extension rod respectively. A sliding rotating shaft is fixedly connected to the side surface of the deflection groove frame, and the sliding rotating shaft is slidably connected to the bracket plate. A tension spring is provided outside the extension plate sliding rod, and both ends of the tension spring are respectively connected to the extension arc plate and the pressing material arc plate. The rotating shaft disc is structurally engaged with the convex strip shaft disc through the wedge strip groove. When the lifting frame moves downward, the lifting frame will drive the connected vertical guide rod and elastic extension rod to move downward together. Due to the large rigidity of the internal spring of the elastic extension rod, when the vertical guide rod is stressed, it will push the elastic extension rod downward through the internal spring, and the pressing link rod connected to the elastic extension rod will push the deflection groove frame. At this time, the deflection groove frame will deflect around the connection of the bracket plate. At this time, the deflection groove frame will lift the pressing material arc plate upward, so that the pressing material arc plate and the extension arc plate will jointly fit the base material outside the coil wheel. As the base material outside the coil wheel gradually decreases, the thickness of the base material outside the coil wheel gradually decreases. At this time, the extension plate sliding rod connected to the pressing material arc plate pulls the extension plate sliding rod to fit the base material through the tension spring, so that the base material outside the coil wheel is slowly released, and the base material passing through the guide roller is kept in a tensioned state, ensuring that the base material is in a tensioned state when the cutting disc cuts, avoiding the influence of the relaxation of the base material on the cutting smoothness and the incision flatness. At the same time, by the relative movement of the right moving frame and the left moving frame, the short connecting frame and the long connecting frame connected to the right moving frame are respectively driven to approach. At this time, the rotating shaft disc connected to the short connecting frame and the long connecting frame will clamp the convex strip shaft disc on the side of the coil wheel through the side wedge strip groove, and the coil wheel located above the pressing material arc plate can be lifted and fixed.

[0014] Adopting the above technical solution, the present invention can bring the following beneficial effects: For the dust-free slitting and cutting machine used on the PCB cutting equipment, by setting the connecting rod fixing plate, vertical sliding rod, lifting frame, chute guide plate, right moving frame, left moving frame, connecting frame fixing seat, chuck end, transmission key rod, positioning shaft disc, cutting disc, splicing chuck, linkage vertical rod, thin rod slider, and guiding cross bar, the interval between the upper chuck end and the lower chuck end is controlled to adjust the interval between the cutting discs to adjust the cutting thickness. Through the relative movement of the right moving frame and the left moving frame, the chuck end is driven to approach to clamp the splicing chuck on the side of the cutting disc, so that the splicing chuck can be quickly fixed and installed for quick replacement in case of wear later. When the hydraulic rod pushes the lifting frame to move downward to control the mutual approach or separation of the chute guide plates to position the cutting discs, it also plays a driving role in the up and down movement of the right moving frame or the left moving frame connected to the chute guide plates, so as to adjust the distance between the upper chuck ends at different heights. By adjusting the interval, the pressure exerted by the cutting discs on the coil is further controlled to improve the cutting effect.

[0015] The dust-free slitting and cutting machine for PCB cutting equipment, by setting a hinge rod seat, a downward pressure hinge rod, a limit block, an inclined groove rod, a long hinge rod, a short hinge rod, a slide rod block, a pressing plate, a short column, a deviation correction shaft rod, a deviation correction wheel, an electric heating tube, and a pressing wheel, keeps the base material flat by heating with the pressing plate, and increases the thermoplasticity of the material by heating the base material, so that the cut surface is flat when the base material is pressed and cut by the cutting disc, and dust is avoided during the cutting process. At the same time, the deviation correction wheel connected to the deviation correction shaft rod centers the base material on the support plate, ensuring that the base material on the support plate has consistent cutting dimensions when entering the area below the cutting disc for cutting, and avoiding the influence of the deviation of the base material on the cutting effect.

[0016] The dust-free slitting and cutting machine for PCB cutting equipment, by setting a vertical guide rod, an elastic extension rod, a pressure application connecting rod, a deflection groove frame, a pressure material arc plate, an extension plate slide rod, an extended arc plate, a long connecting frame, a bracket plate, a short connecting frame, a rotating shaft disc, a wedge strip groove, a convex strip shaft disc, and a coiled material wheel, the extension plate slide rod connected to the pressure material arc plate pulls the extension plate slide rod to fit the base material through a tension spring, slowly releasing the base material outside the coiled material wheel, and keeping the base material passing through the guide roller in a tensioned state, ensuring that the base material is in a tensioned state when the cutting disc cuts, avoiding the influence of the relaxation of the base material on the cutting smoothness and the flatness of the cut surface. At the same time, the relative movement of the right shift frame and the left shift frame drives the relative movement of the short connecting frame and the long connecting frame to quickly fix the coiled material wheel by the rotating shaft disc, facilitating subsequent replacement.

[0017] The dust-free slitting and cutting machine for PCB cutting equipment, by setting a connecting block, a power-on end, an alarm end, a power-on wire, an elastic piece, and a metal contact piece, when the cutting disc wears and thins, the elastic pieces on both sides approach each other under the action of elastic force to make the metal contact piece conductive, reminding that the cutting disc is excessively worn and needs to be replaced. Description of the Drawings

[0018] Figure 1 It is a front three-dimensional structure schematic diagram of the whole invention; Figure 2 It is a structure schematic diagram of the position distribution of the mechanism of the invention; Figure 3 It is a structure schematic diagram of the cutting mechanism of the invention; Figure 4 It is a structure schematic diagram of the connection of the chuck end of the invention; Figure 5 For the present invention Figure 4 An enlarged structure schematic diagram of A in the invention; Figure 6 It is a structure schematic diagram of the hot pressing mechanism of the invention; Figure 7 It is a structure schematic diagram of the tensioning mechanism of the invention; Figure 8 It is a structure schematic diagram of the connection of the coiled material wheel of the invention; Figure 9 For the present invention Figure 8 Schematic enlarged structure diagram of B in the present invention; Figure 10 For the present invention Figure 8 Schematic enlarged structure diagram of C in the present invention; Figure 11 For the present invention Figure 9 Schematic enlarged structure diagram of C in the present invention.

[0019] In the figure: 1, mounting plate; 2, top plate; 3, hydraulic rod; 4, lower pressing plate; 5, cutting mechanism; 51, connecting rod fixing plate; 52, vertical sliding rod; 53, lifting frame; 54, chute guide plate; 55, right moving frame; 56, left moving frame; 57, connecting frame fixing seat; 58, chuck end; 59, transmission key rod; 510, positioning shaft disc; 511, cutting disc; 512, splicing chuck; 513, linkage vertical rod; 514, thin rod slider; 515, guiding cross bar; 6, hot pressing mechanism; 61, hinge rod seat; 62, lower pressing hinge rod; 63, limiting block; 64, inclined groove rod; 65, long hinge rod; 66, short hinge rod; 67, sliding rod block; 68, pressing plate; 69, short column; 610, alignment shaft rod; 611, alignment wheel; 612, electric heating tube; 613, pressing wheel; 7, tensioning mechanism; 71, vertical guide rod; 72, elastic extension rod; 73, pressing connecting rod; 74, deflection groove frame; 75, pressing material arc plate; 76, extension plate sliding rod; 77, extension arc plate; 78, long connecting frame; 79, bracket plate; 710, short connecting frame; 711, rotating shaft disc; 712, wedge bar groove; 713, convex bar shaft disc; 714, coil wheel; 8, detection module; 81, connecting block; 82, energizing end; 83, alarm end; 84, energizing wire; 85, elastic sheet; 86, metal contact; 9, supporting plate; 10, guiding roller; 11, base material. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] Please refer to Figure 1 - Figure 11 , an embodiment of the present invention is: a dust-free slitting cutter for a PCB cutting device, including a mounting plate 1, the top surface of the mounting plate 1 is fixedly connected with a top plate 2, the top surface of the top plate 2 is fixedly connected with a hydraulic rod 3, the bottom end of the hydraulic rod 3 is fixedly connected with a lower pressing plate 4, and a cutting mechanism 5 is arranged below the lower pressing plate 4; The cutting mechanism 5 includes two connecting rod fixed plates 51. Two vertical sliding rods 52 are fixedly connected to the bottom surface of the connecting rod fixed plate 51. A lifting frame 53 is slidably connected to the outer surface of the vertical sliding rod 52. Chute guide plates 54 are arranged on both the front and rear sides of the lifting frame 53. A right shifting frame 55 and a left shifting frame 56 are respectively fixedly connected to the bottom surfaces of the two chute guide plates 54. A plurality of connecting frame fixed seats 57 are fixedly connected to the sides of the left shifting frame 56 and the right shifting frame 55. One end of each connecting frame fixed seat 57 away from the right shifting frame 55 or the left shifting frame 56 is fixedly connected to a chuck end 58. A positioning shaft disc 510 is rotatably connected to the inner side of the chuck end 58. A splicing chuck 512 is fitted and connected to the side surface of the positioning shaft disc 510. A cutting disc 511 is fixedly connected to the edge surface of the splicing chuck 512. A transmission key rod 59 is slidably connected to the side surface of the positioning shaft disc 510.

[0022] On the sides of the right moving frame 55 or the left moving frame 56, there are sliding connections with the linkage vertical rod 513. At the bottom end of the linkage vertical rod 513, there is a fixed connection with the thin rod slider 514. The side of the thin rod slider 514 is slidably connected with the guiding cross rod 515. Below the upper right moving frame 55 or the left moving frame 56, there are respectively arranged the lower right moving frame 55 or the left moving frame 56. The top surface of the lifting frame 53 is fixedly connected with the lower pressing plate 4. On the side of the chute guide plate 54, there is a chute opened, and the chute is composed of a slanting chute and a vertical chute connected. The chute guide plate 54 extends outwards with a convex column and is slidably connected with the chute guide plate 54. The guiding cross rod 515 is fixedly connected with the mounting plate 1. The chuck ends 58 on the left and right sides of each cutting disc 511 are taken as a group. The lower right moving frame 55 on the lower side is fixedly connected with the thin rod slider 514 on the same side, so that the splicing chuck 512 is spliced and fitted with the positioning shaft disc 510. Subsequently, control the hydraulic rod 3 to extend downwards, and push the lifting frame 53 connected with the lower pressing plate 4 to slide downwards along the vertical sliding rod 52. At this time, the downward movement of the lifting frame 53 pushes the chute on the side of the chute guide plate 54, so that the chute on the side of the chute guide plate 54 drives the right moving frame 55 and the left moving frame 56 to move under the force. When the right moving frame 55 and the left moving frame 56 move, they drive the chuck end 58 through the connected connecting frame base 57, so that the two chuck ends 58 on both sides in the same group approach each other, and drive the positioning shaft discs 510 on the inner sides of the two chuck ends 58 to clamp the splicing chuck 512 on the side of the cutting disc 511. When the chuck ends 58 connected to the right moving frame 55 and the left moving frame 56 approach each other, the transmission key rod 59 connected to the chuck end 58 slides with the positioning shaft disc 510. When driving the positioning shaft disc 510 on the side of one chuck end 58 to rotate by an external motor, the positioning shaft disc 510 on the side of this chuck end 58 drives the other positioning shaft disc 510 to rotate through the connected transmission key rod 59, and this positioning shaft disc 510 drives the positioning shaft disc 510 on the other side at the connected part to rotate through fitting with the splicing chuck 512, so as to realize the synchronous rotation of multiple positioning shaft discs 510 driving the splicing chuck 512. As the hydraulic rod 3 is in a continuous extension state, the lifting frame 53 continues to move downwards, and the chute guide plate 54 connected to the lifting frame 53 moves from the inclined side chute to the connected vertical chute. At this time, the lifting frame 53 will push the chute guide plate 54 to move vertically and downwards under force. The downward movement of the chute guide plate 54 will drive the right moving frame 55 or the left moving frame 56 to move downwards along the connected linkage vertical rod 513, and make the upper right moving frame 55 or the left moving frame 56 approach the lower right moving frame 55 or the left moving frame 56. In this way, the interval between the upper chuck end 58 and the lower chuck end 58 can be controlled to adjust the interval between the cutting discs 511 to adjust the cutting thickness. Through the relative movement of the right moving frame 55 and the left moving frame 56 to drive the chuck end 58 to approach and clamp the splicing chuck 512 on the side of the cutting disc 511, the splicing chuck 512 can be quickly fixed and installed, so as to be quickly replaced in case of wear in the future. When the hydraulic rod 3 pushes the lifting frame 53 to move downwards to control the chute guide plate 54 to approach or move away from each other to position the cutting disc 511, it also plays a driving role in the up and down movement of the right moving frame 55 or the left moving frame 56 connected to the chute guide plate 54.Thus, the distance between the chuck ends 58 at different heights is adjusted, and the cutting effect is improved by controlling the pressure of the cutting disc 511 on the coil through adjusting the interval.

[0023] A detection module 8 is installed on the side of the cutting mechanism 5. A hot pressing mechanism 6 is arranged on the front side of the cutting mechanism 5. A tensioning mechanism 7 is arranged below the hot pressing mechanism 6. A support plate 9 is fixedly connected to the front side of the lower right moving frame 55. A guide roller 10 is rotatably connected to the bottom end of the support plate 9. A base material 11 is arranged above the support plate 9.

[0024] The detection module 8 includes two connecting blocks 81. The two connecting blocks 81 are respectively fixedly connected to the front sides of the two chuck ends 58 in the same group. One ends of the two connecting blocks 81 far away from the chuck ends 58 are respectively fixedly connected with a power-on end 82 and an alarm end 83. The power-on end 82 and the alarm end 83 are electrically connected with a power-on wire 84 on the side. Elastic sheets 85 are fixedly connected to the rear sides of the power-on end 82 and the alarm end 83. Metal contact pieces 86 are fixedly connected to the top surfaces of the elastic sheets 85. When the two chuck ends 58 approach each other, the connecting blocks 81 connected to the two chuck ends 58 in the same group respectively drive the power-on end 82 and the alarm end 83 to approach each other. The elastic sheets 85 connected to the power-on end 82 and the alarm end 83 move together with them and fit against the side surface of the cutting disc 511. When the cutting disc 511 wears and becomes thinner during use, the elastic sheets 85 attached to both sides of the cutting disc 511 will approach each other under the elastic action until the metal contact pieces 86 connected to the elastic sheets 85 approach and contact. At this time, the metal contact piece 86 is in a conductive state with the buzzer built in the alarm end 83 through the elastic sheet 85. At this time, the buzzer built in the alarm end 83 works. When the cutting disc 511 wears and becomes thinner, the elastic sheets 85 sandwiched on both sides approach each other under the elastic force to make the metal contact piece 86 conductive, so as to remind that the cutting disc 511 is excessively worn and needs to be replaced.

[0025] The hot pressing mechanism 6 includes a hinge rod seat 61. An inner side of the hinge rod seat 61 is rotatably connected with a downward pressing hinge rod 62. A bottom surface of the downward pressing hinge rod 62 is fixedly connected with a limit block 63. A side surface of the downward pressing hinge rod 62 is fixedly connected with an inclined groove rod 64. An outer side of the inclined groove rod 64 is slidably connected with a slide rod block 67. A side surface of the slide rod block 67 is rotatably connected with a short hinge rod 66. One end of the short hinge rod 66 far from the slide rod block 67 is hingedly connected with a long hinge rod 65. A bottom side surface of the long hinge rod 65 is hingedly connected with a pressing plate 68. An upper surface of the pressing plate 68 is fixedly connected with an electric heating tube 612. A middle part of a top surface at a rear end of the pressing plate 68 is fixedly connected with a short column 69. An outer surface of the short column 69 is rotatably connected with a deviation correcting shaft rod 610. Both ends of the deviation correcting shaft rod 610 are rotatably connected with deviation correcting wheels 611. A bottom end of the downward pressing hinge rod 62 is rotatably connected with a pressing wheel 613. A return spring is arranged on an outer side of the inclined groove rod 64, and two ends of the return spring are respectively fixedly connected with the slide rod block 67 and the downward pressing hinge rod 62. A torsion spring is arranged on an outer side of the short column 69, and two ends of the torsion spring are respectively fixedly connected with the short column 69 and the deviation correcting shaft rod 610. There is damping between the downward pressing hinge rod 62 and the hinge rod seat 61. The hinge rod seat 61 connected to the right moving frame 55 drives the downward pressing hinge rod 62 to approach the pallet 9. When the pressing plate 68 on a side surface of the downward pressing hinge rod 62 fits the base material 11 on the pallet 9, at this time, the pressing plate 68 drives the slide rod block 67 to slide along the short hinge rod 66 and stretch the return spring by the force received through the connected extension plate slide rod 76. At this time, the electric heating tube 612 on the pressing plate 68 transfers heat to the pressing plate 68 through heating, and then transfers the heat to the base material 11 through the contact between the pressing plate 68 and the base material 11 to heat the base material 11. By heating the pressing plate 68, the base material 11 is kept flat, and the thermoplasticity of the material is increased by heating the base material 11, so that the cut of the base material 11 is kept flat when being pressed and cut by the cutting disc 511, and dust generation during the cutting process is avoided by pressing and cutting. When the base material 11 passes through a bottom surface of the pressing plate 68, the deviation correcting wheels 611 at both ends of the pressing plate 68 will guide the movement of the base material 11. When the base material 11 deviates towards one of the deviation correcting wheels 611, the deviation correcting wheel 611 will drive the deviation correcting shaft rod 610 to deflect a small angle around the short column 69 and twist the torsion spring. At this time, the deflected deviation correcting wheel 611 will deflect towards the side close to the right moving frame 55. The deviation correcting wheel 611 is used to guide the base material 11 to rotate away from the contacted deviation correcting wheel 611 along with the pressing wheel 613, so that the base material 11 is centered above the pallet 9. The deviation correcting wheel 611 connected to the deviation correcting shaft rod 610 is used to center the base material 11 on the pallet 9, which can ensure the consistency of the cutting size when the base material 11 on the pallet 9 enters below the cutting disc 511 for cutting, and avoid the cutting effect caused by the deviation movement of the base material 11.

[0026] The tensioning mechanism 7 includes a vertical guide rod 71. The bottom end of the vertical guide rod 71 is slidably connected with an elastic extension rod 72. The bottom end of the elastic extension rod 72 is fixedly connected with a pressure-applying connecting rod 73. The outer surface of the pressure-applying connecting rod 73 is slidably connected with a deflection groove frame 74. The bottom end of the deflection groove frame 74 is hingedly connected with a pressure-applying arc plate 75. The front side of the pressure-applying arc plate 75 is fixedly connected with an extension plate sliding rod 76. The outer surface of the extension plate sliding rod 76 is slidably connected with an extension arc plate 77. A long connecting frame 78 is fixedly connected to the bottom surface of the lower left moving frame 56. A short connecting frame 710 is fixedly connected to the bottom surface of the lower right moving frame 55. Bracket plates 79 are fixedly connected to the bottom surfaces of both the short connecting frame 710 and the long connecting frame 78. Rotating shaft discs 711 are rotatably connected to the bottom ends of both the short connecting frame 710 and the long connecting frame 78. A keyway groove 712 is formed on the side surface of the rotating shaft disc 711. A coiling material wheel 714 is arranged between the two rotating shaft discs 711. Convex bar discs 713 are fixedly connected to both ends of the coiling material wheel 714. The vertical guide rod 71 is fixedly connected to the bottom surface of the lifting frame 53. An internal spring is arranged inside the elastic extension rod 72, and the two ends of the internal spring are respectively fixedly connected with the vertical guide rod 71 and the elastic extension rod 72. A sliding rotating shaft is fixedly connected to the side surface of the deflection groove frame 74, and the sliding rotating shaft is slidably connected with the bracket plate 79. A tension spring is arranged outside the extension plate sliding rod 76, and the two ends of the tension spring are respectively connected with the extension arc plate 77 and the pressure-applying arc plate 75. The rotating shaft disc 711 and the convex bar disc 713 are structurally engaged through the keyway groove 712. The lifting frame 53 will drive the connected vertical guide rod 71 and elastic extension rod 72 to move downward together. Due to the large rigidity of the internal spring in the elastic extension rod 72, when the vertical guide rod 71 is stressed, it will push the elastic extension rod 72 downward through the internal spring, and the pressure-applying connecting rod 73 connected to the elastic extension rod 72 will push the deflection groove frame 74. At this time, the deflection groove frame 74 will deflect around the connection point of the bracket plate 79. At this time, the deflection groove frame 74 will lift the pressure-applying arc plate 75 upward, so that the pressure-applying arc plate 75 and the extension arc plate 77 will jointly fit the base material 11 outside the coiling material wheel 714. As the base material 11 outside the coiling material wheel 714 gradually decreases, the thickness of the base material 11 outside the coiling material wheel 714 gradually decreases. At this time, the extension plate sliding rod 76 connected to the pressure-applying arc plate 75 pulls the extension plate sliding rod 76 through the tension spring to fit the base material 11, so that the base material 11 outside the coiling material wheel 714 is slowly released, and the base material 11 passing through the guide roller 10 is kept in a tensioned state, ensuring that the base material 11 is in a tensioned state during the cutting of the cutting disc 511, avoiding the slack of the base material 11 from affecting the cutting smoothness and the incision flatness. At the same time, by using the relative movement of the right moving frame 55 and the left moving frame 56, the short connecting frame 710 connected to the right moving frame 55 and the long connecting frame 78 are respectively driven to approach. At this time, the rotating shaft discs 711 connected to the short connecting frame 710 and the long connecting frame 78 will clamp the convex bar disc 713 on the side surface of the coiling material wheel 714 through the keyway groove 712 on the side surface, so that the coiling material wheel 714 located above the pressure-applying arc plate 75 can be lifted and fixed for replacing the coiling material wheel 714.The relative movement of the right moving frame 55 and the left moving frame 56 drives the relative movement of the short connecting frame 710 and the long connecting frame 78, so that the rotating shaft disc 711 can quickly fix the coil wheel 714, facilitating subsequent replacement.

[0027] Working principle: In a stacking manner, multiple layers of PCB materials are stacked, and each layer of material is bonded with glue. Under the action of a pressing device, the excess glue between the materials overflows from the side. The overflowing glue is roughly cut by a downward pressing guillotine. After simultaneously cutting both sides of the square PCB material, the material is rotated 90 degrees to continue cutting the other two sides. Subsequently, it is moved by a conveyor belt to the lower part of another device, and the edges of the material are finely cut by special blades, such as chamfering treatment. During the treatment, the internal coordinate points of the PCB board are viewed through an x-ray camera, and the material is cut into a suitable size according to the coordinate points. After the treatment, the material is conveyed to a deburring device to remove the excess burrs. After removing the burrs, the overall thickness of the board is measured by laser ranging to determine whether the cut material is qualified.

[0028] As a processing device before PCB stacking and bonding, the device strips and cuts the PCB sheet coil. When installing the cutting disc 511, align the splicing chuck 512 on the side of the cutting disc 511 with the positioning shaft disc 510 on one side of the chuck end 58, and make the splicing chuck 512 fit with the positioning shaft disc 510. Then control the hydraulic rod 3 to extend downward, and push the lifting frame 53 connected to the lower pressing plate 4 to slide downward along the vertical sliding rod 52. At this time, the lifting frame 53 moves downward to push the chute on the side of the chute guide plate 54, so that the chute on the side of the chute guide plate 54 drives the right moving frame 55 and the left moving frame 56 to move under force. When the right moving frame 55 and the left moving frame 56 move, the chuck end 58 is driven through the connected link fixing seat 57, so that the chuck ends 58 on both sides in the same group approach each other, and drive the positioning shaft discs 510 inside the two chuck ends 58 to clamp the splicing chuck 512 on the side of the cutting disc 511. When the chuck ends 58 connected to the right moving frame 55 and the left moving frame 56 approach each other, the transmission key rod 59 connected to the chuck end 58 slides with the positioning shaft disc 510. When the positioning shaft disc 510 on the side of one chuck end 58 is driven to rotate by an external motor, the positioning shaft disc 510 on the side of this chuck end 58 drives another positioning shaft disc 510 to rotate through the connected transmission key rod 59, and this positioning shaft disc 510 drives the positioning shaft disc 510 on the other side of the connected part to rotate through the fit with the splicing chuck 512, so as to realize the synchronous rotation of multiple positioning shaft discs 510 driving the splicing chuck 512. As the hydraulic rod 3 is in a continuous extension state, the lifting frame 53 continues to move downward, and the chute guide plate 54 connected to the lifting frame 53 moves from the inclined side groove to the connected vertical groove. At this time, the lifting frame 53 will push the chute guide plate 54 to move downward under vertical force. The downward movement of the chute guide plate 54 will drive the right moving frame 55 or the left moving frame 56 to move downward along the connected linkage vertical rod 513, and make the upper right moving frame 55 or the left moving frame 56 approach the lower right moving frame 55 or the left moving frame 56. In this way, the interval between the upper chuck end 58 and the lower chuck end 58 can be controlled to adjust the interval between the cutting discs 511 to adjust the cutting thickness. The relative movement of the right moving frame 55 and the left moving frame 56 drives the chuck end 58 to approach and clamp the splicing chuck 512 on the side of the cutting disc 511, so that the splicing chuck 512 can be quickly fixed and installed, so as to be quickly replaced in case of wear in the future. While controlling the chute guide plate 54 to approach or separate to position the cutting disc 511 by pushing the lifting frame 53 downward by the hydraulic rod 3, it also plays a driving role in the up and down movement of the right moving frame 55 or the left moving frame 56 connected to the chute guide plate 54, so as to adjust the distance between the upper chuck ends 58 at different heights. By adjusting the interval, the pressure and shear of the cutting disc 511 on the coil are further controlled to improve the cutting effect; When the cutting disc 511 is placed between the chuck ends 58, as the two chuck ends 58 on both sides approach each other, the connecting blocks 81 connected to the two chuck ends 58 of the same group drive the power-on end 82 and the alarm end 83 to approach each other respectively. The elastic sheet 85 connected to the power-on end 82 and the alarm end 83 moves with them and fits against the side of the cutting disc 511. When the cutting disc 511 wears and thins during use, the elastic sheets 85 attached to both sides of the cutting disc 511 will approach each other under the elastic action until the metal contacts 86 connected to the elastic sheet 85 are close enough to make contact. At this time, the metal contacts 86 are in a conductive state with the buzzer built into the alarm end 83 through the elastic sheet 85, and the buzzer built into the alarm end 83 works. When the cutting disc 511 wears and thins, the elastic sheets 85 on both sides are close to each other under the elastic force, making the metal contacts 86 conductive, to remind that the cutting disc 511 is excessively worn and needs to be replaced; When the upper right moving frame 55 moves downward, the hinge rod seat 61 connected to the right moving frame 55 drives the downward pressing hinge rod 62 to approach the pallet 9. When the pressing plate 68 on the side of the downward pressing hinge rod 62 fits against the base material 11 on the pallet 9, at this time, the pressing plate 68 drives the sliding rod block 67 to slide along the short hinge rod 66 and stretch the return spring through the connected extension plate sliding rod 76 under force. At this time, the electric heating tube 612 on the pressing plate 68 transfers heat to the pressing plate 68 through heating, and then transfers the heat to the base material 11 through the contact between the pressing plate 68 and the base material 11, heating the base material 11. By heating the base material 11 by the pressing plate 68, the base material 11 is kept flat, and the thermoplasticity of the material is increased by heating the base material 11, so that the cut of the base material 11 is kept flat when being pressed and cut by the cutting disc 511, and dust generation during the cutting process is avoided by pressing and cutting. When the base material 11 passes under the bottom surface of the pressing plate 68, the alignment wheels 611 at both ends of the pressing plate 68 will guide the movement of the base material 11. When the base material 11 deviates towards one of the alignment wheels 611, the alignment wheel 611 will drive the alignment shaft rod 610 to deflect a small angle around the short column 69 and twist the torsion spring under force. At this time, the deflected alignment wheel 611 will deviate towards the side close to the right moving frame 55, and use the deviation of the alignment wheel 611 to guide the base material 11 to rotate away from the contacted alignment wheel 611 along with the pressing wheel 613, so that the base material 11 is centered above the pallet 9. Using the alignment wheel 611 connected to the alignment shaft rod 610 to center the base material 11 on the pallet 9 can ensure that the cutting size is consistent when the base material 11 on the pallet 9 enters under the cutting disc 511 for cutting, and avoid the cutting effect caused by the deviation of the base material 11; When the lifting frame 53 moves downward, the lifting frame 53 drives the connected vertical guide rod 71 and the elastic extension rod 72 to move downward together. Since the built-in spring of the elastic extension rod 72 has a large rigidity, when the vertical guide rod 71 is stressed, it will push the elastic extension rod 72 downward through the built-in spring, and the pressure application connecting rod 73 connected to the elastic extension rod 72 will push the deflection groove frame 74. At this time, the deflection groove frame 74 will deflect around the connection of the bracket plate 79. At this time, the deflection groove frame 74 will lift the pressing material arc plate 75 upward, so that the pressing material arc plate 75 and the extension arc plate 77 are attached to the base material 11 outside the coil wheel 714 together. As the base material 11 outside the coil wheel 714 gradually decreases, the thickness of the base material 11 outside the coil wheel 714 gradually decreases. At this time, the extension plate slide rod 76 connected to the pressing material arc plate 75 pulls the extension plate slide rod 76 to fit the base material 11 through the tension spring, so that the base material 11 outside the coil wheel 714 is slowly released, and the base material 11 passing through the guide roller 10 is kept in a tensioned state, ensuring that the base material 11 is in a tensioned state during the cutting of the cutting disc 511, avoiding the slack of the base material 11 from affecting the cutting smoothness and the incision flatness. At the same time, by using the relative movement of the right shift frame 55 and the left shift frame 56, the short connecting frame 710 and the long connecting frame 78 connected to the right shift frame 55 are respectively driven to approach. At this time, the rotating shaft disc 711 connected to the short connecting frame 710 and the long connecting frame 78 clamps the convex bar shaft disc 713 on the side of the coil wheel 714 through the side wedge groove 712, and the coil wheel 714 located above the pressing material arc plate 75 can be lifted and fixed, so as to replace the coil wheel 714. By using the relative movement of the right shift frame 55 and the left shift frame 56 to drive the relative movement of the short connecting frame 710 and the long connecting frame 78, the rotating shaft disc 711 can quickly fix the coil wheel 714, which is convenient for subsequent replacement.

[0029] The present invention provides a dust-free slitting and cutting machine for PCB cutting equipment. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be realized by the prior art.

Claims

1. A dust-free slitting and cutting machine for PCB cutting equipment, comprising a mounting plate (1), characterized in that: The top surface of the mounting plate (1) is fixedly connected to a top plate (2), the top surface of the top plate (2) is fixedly connected to a hydraulic rod (3), the bottom end of the hydraulic rod (3) is fixedly connected to a lower pressing plate (4), and a cutting mechanism (5) is provided below the lower pressing plate (4); The cutting mechanism (5) comprises two connecting rod fixing plates (51), the bottom surface of the connecting rod fixing plates (51) is fixedly connected to two vertical sliding rods (52), the outer surface of the vertical sliding rod (52) is slidably connected to a lifting frame (53), the front and rear sides of the lifting frame (53) are provided with a slide groove guide plate (54), the bottom surfaces of the two slide groove guide plates (54) are respectively fixedly connected to a right moving frame (55) and a left moving frame (56), and the sides of the left moving frame (56) and the right moving frame (55) are fixedly connected to multiple A connecting frame fixed seat (57), one end of each connecting frame fixed seat (57) away from the right shifting frame (55) or the left shifting frame (56) is fixedly connected to a chuck end (58), the inner side of the chuck end (58) is rotatably connected to a positioning shaft disk (510), the side of the positioning shaft disk (510) is fittedly connected to a splicing chuck (512), the edge surface of the splicing chuck (512) is fixedly connected to a cutting disk (511), and the side of the positioning shaft disk (510) is slidably connected to a transmission key rod (59).

2. The dust-free strip cutting machine for PCB cutting equipment according to claim 1, characterized in that: The side surfaces of the right moving frame (55) or the left moving frame (56) are slidably connected to a linkage vertical rod (513), the bottom end of the linkage vertical rod (513) is fixedly connected to a thin rod slider (514), the side surfaces of the thin rod slider (514) are slidably connected to a guide cross rod (515), and the right moving frame (55) or the left moving frame (56) located below is respectively arranged directly below the right moving frame (55) or the left moving frame (56) located above.

3. The dust-free strip cutting machine for PCB cutting equipment according to claim 2, characterized in that: The top surface of the lifting frame (53) is fixedly connected to the lower pressure plate (4), a sliding groove is provided on the side of the sliding groove guide plate (54), and the sliding groove is composed of an oblique groove and a vertical groove connected to each other, the sliding groove guide plate (54) extends outward to form a protrusion that is slidably connected to the sliding groove guide plate (54), the guide cross bar (515) is fixedly connected to the mounting plate (1), the chuck ends (58) on the left and right sides of each cutting disk (511) are a group, and the right shift frame (55) located below is fixedly connected to the thin rod slider (514) on the same side.

4. The dust-free slitting and cutting machine for PCB cutting equipment according to claim 3, characterized in that: A detection module (8) is installed on the side of the cutting mechanism (5), a hot pressing mechanism (6) is arranged on the front side of the cutting mechanism (5), a tensioning mechanism (7) is arranged below the hot pressing mechanism (6), a support plate (9) is fixedly connected to the front side of the right shifting frame (55) located below, a guide roller (10) is rotatably connected to the bottom end of the support plate (9), and a substrate (11) is arranged above the support plate (9).

5. The dust-free strip cutting machine for PCB cutting equipment according to claim 4, characterized in that: The detection module (8) comprises two connection blocks (81), the two connection blocks (81) are respectively fixedly connected to the front sides of two chuck ends (58) of the same group, and the ends of the two connection blocks (81) away from the chuck ends (58) are respectively fixedly connected to a power-on end (82) and an alarm end (83), the sides of the power-on end (82) and the alarm end (83) are electrically connected to a power-on wire (84), the rear sides of the power-on end (82) and the alarm end (83) are both fixedly connected to an elastic sheet (85), and the top surface of the elastic sheet (85) is fixedly connected to a metal contact sheet (86).

6. The dust-free slitting and cutting machine for PCB cutting equipment according to claim 5, characterized in that: The hot pressing mechanism (6) comprises a hinge rod seat (61), the inner side of the hinge rod seat (61) is rotatably connected to a downward hinge rod (62), the bottom surface of the downward hinge rod (62) is fixedly connected to a limit block (63), the side of the downward hinge rod (62) is fixedly connected to an inclined groove rod (64), the outer side of the inclined groove rod (64) is slidably connected to a slide rod block (67), the side of the slide rod block (67) is rotatably connected to a short hinge rod (66), and one end of the short hinge rod (66) away from the slide rod block (67) is hingedly connected to A long hinge rod (65), wherein the bottom side of the long hinge rod (65) is hingedly connected to a pressure plate (68), the upper surface of the pressure plate (68) is fixedly connected to an electric heating tube (612), a short column (69) is fixedly connected to the middle of the top surface of the rear end of the pressure plate (68), the outer surface of the short column (69) is rotatably connected to a deflection correction shaft rod (610), both ends of the deflection correction shaft rod (610) are rotatably connected to deflection correction wheels (611), and the bottom end of the downward pressure hinge rod (62) is rotatably connected to a pressure wheel (613).

7. The dust-free slitting and cutting machine for PCB cutting equipment according to claim 6, characterized in that: A return spring is arranged on the outside of the inclined slot rod (64), and the two ends of the return spring are respectively fixedly connected to the slide rod block (67) and the downward hinge rod (62); a torsion spring is arranged on the outside of the short column (69), and the two ends of the torsion spring are respectively fixedly connected to the short column (69) and the deviation correction shaft rod (610); damping exists between the downward hinge rod (62) and the hinge rod seat (61).

8. The dust-free strip cutting machine for PCB cutting equipment according to claim 7, characterized in that: The tensioning mechanism (7) comprises a vertical guide rod (71), the bottom end of the vertical guide rod (71) is slidably connected to an elastic extension rod (72), the bottom end of the elastic extension rod (72) is fixedly connected to a pressure connecting rod (73), the outer surface of the pressure connecting rod (73) is slidably connected to a deflection slot frame (74), the bottom end of the deflection slot frame (74) is hingedly connected to a pressing material arc plate (75), the front end side of the pressing material arc plate (75) is fixedly connected to an extension plate slide rod (76), the outer surface of the extension plate slide rod (76) is slidably connected to an extension arc plate (77), and the left shift frame (5) located below 6) A long connecting frame (78) is fixedly connected to the bottom surface, and a short connecting frame (710) is fixedly connected to the bottom surface of the right shift frame (55) located below. The bottom surfaces of the short connecting frame (710) and the long connecting frame (78) are fixedly connected to a bracket plate (79). The bottom ends of the short connecting frame (710) and the long connecting frame (78) are rotatably connected to a rotating shaft disk (711). A groove (712) is provided on the side of the rotating shaft disk (711). A coiling wheel (714) is provided between the two rotating shaft disks (711), and both ends of the coiling wheel (714) are fixedly connected to a convex shaft disk (713).

9. The dust-free slitting and cutting machine for PCB cutting equipment according to claim 8, characterized in that: The vertical guide rod (71) is fixedly connected to the bottom surface of the lifting frame (53); the elastic extension rod (72) is provided with an internal spring, and the two ends of the internal spring are respectively fixedly connected to the vertical guide rod (71) and the elastic extension rod (72); the side of the deflection slot frame (74) is fixedly connected with a sliding shaft, and the sliding shaft is slidably connected to the bracket plate (79); the outer side of the extension plate slide rod (76) is provided with a tension spring, and the two ends of the tension spring are respectively connected to the extension arc plate (77) and the pressing material arc plate (75); the rotating shaft disk (711) is structurally matched with the convex strip shaft disk (713) through the groove (712).

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