Gantry suspension clamp type energy-saving tunnel drying oven equipment

Abstract

The invention relates to the technical field of PCB production equipment, and discloses gantry suspension clamp type energy-saving tunnel drying oven equipment which comprises a hot air drying furnace and a chain conveying device, a feeding manipulator is arranged at the input end of the hot air drying furnace, and a discharging manipulator is arranged at the output end of the hot air drying furnace; the chain conveying device comprises a plurality of chain link units, each chain link unit is provided with a PCB fixing frame, each PCB fixing frame comprises a portal frame structure defined by a base, a support and a cross beam, the base is provided with a bracket and a limiting rod, and the cross beam is provided with a suspension clamp; the input end and the output end of the hot air drying furnace are provided with a suspension clamp opening device, a cross beam disassembling and assembling device and a cross beam overturning device in a mirror image mode, and the output end of the hot air drying furnace is provided with a suspension clamp cleaning device. The gantry suspension clamp type energy-saving tunnel drying oven equipment has the advantages of being high in automation degree, good in operation stability and high in continuous working capacity, and the product quality and the production efficiency can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB board production equipment, and particularly relates to a gantry crane clamping type energy-saving tunnel oven equipment. Background Art

[0002] The PCB board, also known as the printed circuit board, is a carrier for the electrical connection of electronic components and is one of the important components of the electronics industry. At present, the PCB board generally uses a hot air drying oven for the drying process. The PCB board is hoisted and transported in the hot air drying oven through a clamping device. However, during the hoisting and transportation process, the PCB board will be blown by the hot air and swing back and forth, which not only easily causes deformation and damage at the clamping position of the PCB board, affecting the product quality, but also in order to prevent the PCB boards from colliding with each other, the front and rear spacing of the clamping device is designed to be relatively large, resulting in a longer length of the conveying production line and a large occupied space. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a gantry crane clamping type energy-saving tunnel oven equipment with high automation, good operation stability, strong continuous working ability, and capable of effectively improving product quality and production efficiency.

[0004] To solve the above technical problem, the present invention adopts the following technical solutions: A gantry crane clamping type energy-saving tunnel oven equipment includes a hot air drying oven and a chain conveying device arranged in the hot air drying oven. A loading manipulator is arranged at the input end of the hot air drying oven, and an unloading manipulator is arranged at the output end of the hot air drying oven; The chain conveying device includes several groups of chain link units connected end to end. A PCB board fixing frame is arranged on each group of chain link units. The PCB board fixing frame includes a gantry structure surrounded by a base, a support, and a cross beam. A bracket for supporting the PCB board and a limiting rod for preventing the PCB board from swinging are arranged on the base, and a hanging clamp for clamping the PCB board is arranged on the cross beam; Clamp opening devices, cross beam disassembly and assembly devices, and cross beam flipping devices are arranged in a mirror image at the input end and the output end of the hot air drying oven, and a clamp cleaning device is arranged at the output end of the hot air drying oven.

[0005] As a further improvement of the above technical solution: An installation seat is arranged on the support. A first installation groove for accommodating the cross beam is arranged on the installation seat. A clamp component for clamping and fixing the cross beam is arranged on the installation seat. The clamp component includes a first clamp jaw and a second clamp jaw rotatably arranged on the installation seat, and a clamping spring for keeping the first clamp jaw and the second clamp jaw in a clamped state.

[0006] A moving seat is provided at the bottom of the limiting rod. The limiting rod is adjustably arranged on the base through the moving seat. A plurality of groups of limiting wing plates are arranged on the limiting rod, and a tapered convex part that gradually narrows from the middle to the inside is formed on the limiting wing plate.

[0007] The hanging clip opening device includes a first substrate and a first lifting drive mechanism for driving the first substrate to reciprocate in the vertical direction. A plurality of groups of pressing blocks for pressing and opening the hanging clip are movably arranged on the first substrate. The pressing blocks are fixedly connected to a movable plate through connecting rods. An opening and closing drive mechanism for driving the movable plate to reciprocate in the horizontal direction is installed on the movable plate, so that the movable plate drives the pressing blocks to make reciprocating movements.

[0008] A plurality of groups of positioning card plates for engaging and positioning with the cross beam are fixedly arranged on the first substrate, and positioning card slots are opened on the positioning card plates.

[0009] The cross beam disassembly and assembly device includes a second substrate. An unlocking and jacking block for jacking open the first clamping jaw and the second clamping jaw and a rotary clamping cylinder for clamping and driving the cross beam to rotate are movably arranged on the second substrate. A second lifting drive mechanism for driving the unlocking and jacking block to reciprocate in the vertical direction and a third lifting drive mechanism for driving the rotary clamping cylinder to reciprocate in the vertical direction are arranged on the second substrate.

[0010] The cross beam flipping device includes a third substrate and a guide plate. A track plate is fixedly arranged on the third substrate. A flipping plate is movably arranged between the track plate and the guide plate. A flipping drive mechanism for driving the flipping plate to reciprocate along the track plate and the guide plate is arranged on the flipping plate. The cross beam disassembly and assembly device is installed on the flipping plate through the second substrate.

[0011] Guide rails are arranged on the track plate. A first roller clamping mechanism for making rolling contact with the guide rails and a second roller clamping mechanism for making rolling contact with the guide plate are arranged on the flipping plate.

[0012] A gear structure is arranged on the outer periphery of the track plate. The flipping drive mechanism includes a driving gear and a driving motor. The driving motor is fixedly arranged on the flipping plate. The driving gear is circumferentially fixedly connected to the output shaft of the driving motor. The driving gear is meshed and connected with the gear structure.

[0013] The hanging clip cleaning device includes a cleaning tank and a fourth lifting drive mechanism for driving the cleaning tank to reciprocate in the vertical direction. An ultrasonic generator is arranged in the cleaning tank.

[0014] Compared with the prior art, the advantages of the present invention are as follows: 1. The gantry crane clamp type energy-saving tunnel oven equipment of the present invention includes a hot air drying furnace and a chain conveying device arranged inside the hot air drying furnace. Each link unit of the chain conveying device is provided with a PCB board fixing rack. The PCB board fixing rack includes a gantry structure enclosed by a base, a bracket, and a cross beam. A lifting clamp is arranged on the cross beam, and a bracket and a limiting rod are arranged on the base. After the PCB board is clamped and hoisted on the lifting clamp, the bracket and the limiting rod can play a limiting role on the PCB board to prevent the PCB board from swinging back and forth during the conveying and transfer process in the hot air drying furnace. This can not only effectively improve the product quality, but also the distance between adjacent PCB board fixing racks is small, the interval is compact. Compared with the prior art, a hot air drying furnace of the same length can convey and dry more PCB boards, or when conveying and drying the same number of PCB boards in the hot air drying furnace, the length of the chain conveying device is shorter, the occupied space is small, the energy utilization rate is high, and it is more energy-saving.

[0015] 2. Clamp opening devices, cross beam disassembly and assembly devices, and cross beam flipping devices are arranged in a mirror image at the input end and the output end of the hot air drying furnace. The clamp opening device is used to open the lifting clamps on the PCB board fixing rack to facilitate the feeding of the feeding manipulator or the picking of the discharging manipulator. The cross beam disassembly and assembly device located at the input end of the hot air drying furnace is used to remove the cross beam of the PCB board fixing rack under the chain conveying device, cooperate with the cross beam flipping device to flip it to the upper side of the chain conveying device, and install the cross beam on the PCB board fixing rack on the upper side of the chain conveying device. The cross beam disassembly and assembly device located at the output end of the hot air drying furnace is used to remove the cross beam of the PCB board fixing rack on the upper side of the chain conveying device, cooperate with the cross beam flipping device to flip it to the lower side of the chain conveying device, and install the cross beam on the PCB board fixing rack on the lower side of the chain conveying device. The cross beam is missing on the PCB board fixing rack at the turning point of the chain conveying device, which can prevent the feeding manipulator and the discharging manipulator from interfering with the cross beam at the turning point during the picking and placing process. A clamp cleaning device is arranged at the output end of the hot air drying furnace. After the discharging manipulator takes out the PCB board from the lifting clamp, the clamp cleaning device can clean the lifting clamp, effectively removing the residual PCB board ink on the lifting clamp. It has the advantages of high automation degree, good operation stability, and strong continuous working ability, and can effectively improve the production efficiency. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the gantry crane clamp type energy-saving tunnel oven equipment of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the gantry crane clamp type energy-saving tunnel oven equipment from the front view angle of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the chain conveying device.

[0019] Figure 4Schematic diagrams of the structure of the hanging clamp opening device, the crossbeam disassembly and assembly device, and the crossbeam flipping device.

[0020] Figure 5 Schematic diagram of the structure of the PCB board fixing bracket.

[0021] Figure 6 Enlarged detail view of the limit rod.

[0022] Figure 7 Enlarged detail view of the mounting seat and the clip assembly.

[0023] Figure 8 Schematic diagram of the structure of the hanging clamp opening device.

[0024] Figure 9 Enlarged detail view of the pressing block and the positioning card board.

[0025] Figure 10 Schematic diagram of the structure of the hanging clamp opening device from a bottom view angle.

[0026] Figure 11 For Figure 10 Enlarged view of detail A in

[0027] Figure 12 Schematic diagram of the structure of the crossbeam disassembly and assembly device.

[0028] Figure 13 Exploded view of the crossbeam disassembly and assembly device.

[0029] Figure 14 Enlarged detail view of the buckle lifting block and the clip assembly.

[0030] Figure 15 Schematic diagram of the structure of the crossbeam flipping device.

[0031] Figure 16 Schematic diagram of the structure of the crossbeam flipping device from another angle.

[0032] Figure 17 For Figure 16 Enlarged view of detail B in

[0033] Figure 18 For Figure 16 Enlarged view of detail C in

[0034] Figure 19 Enlarged detail view of the track plate, the flipping plate, and the guide plate.

[0035] Figure 20 Schematic diagram of the structure of the hanging clamp cleaning device.

[0036] Figure 21 Internal schematic diagram of the hanging clamp cleaning device.

[0037] Legend: 100, hot air drying oven; 200, chain conveyor device; 300, loading manipulator; 400, unloading manipulator; 500, PCB board fixing rack; 600, clamp opening device; 700, crossbeam disassembly and assembly device; 800, crossbeam flipping device; 900, clamp cleaning device; 1, base; 2, bracket; 3, crossbeam; 4, bracket; 5, limit rod; 501, limit wing plate; 502, conical convex part; 6, clamp; 7, mounting seat; 701, first mounting groove; 8, clip assembly; 801, first jaw; 802, second jaw; 803, clamping spring; 9, moving seat; 10, first substrate; 11, first lifting drive mechanism; 12, pressing block; 13, connecting rod; 14, movable plate; 15, opening and closing drive mechanism; 16, positioning card board; 1601, positioning card slot; 17, second substrate; 18, buckle lifting block; 19, rotating clamping cylinder; 20, second lifting drive mechanism; 21, third lifting drive mechanism; 22, third substrate; 23, guide plate; 24, track plate; 2401, guide rail; 2402, gear structure; 25, flipping plate; 2501, first roller clamping mechanism; 2502, second roller clamping mechanism; 26, flipping drive mechanism; 2601, driving gear; 2602, driving motor; 27, cleaning tank; 28, fourth lifting drive mechanism; 29, ultrasonic generator. Detailed implementation mode

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] As Figures 1 to 5 shown, the gantry clamp type energy-saving tunnel oven equipment of this embodiment includes a hot air drying oven 100 and a chain conveyor device 200 arranged in the hot air drying oven 100. A loading manipulator 300 is arranged at the input end of the hot air drying oven 100, and an unloading manipulator 400 is arranged at the output end of the hot air drying oven 100; the chain conveyor device 200 includes several groups of chain link units connected end to end. Each group of chain link units is provided with a PCB board fixing rack 500. The PCB board fixing rack 500 includes a gantry structure enclosed by a base 1, a bracket 2 and a crossbeam 3. A bracket 4 for supporting the PCB board and a limit rod 5 for preventing the PCB board from swinging are arranged on the base 1, and a clamp 6 for clamping the PCB board is arranged on the crossbeam 3; Clamp opening devices 600, crossbeam disassembly and assembly devices 700 and crossbeam flipping devices 800 are arranged in a mirror image at the input end and the output end of the hot air drying oven 100, and a clamp cleaning device 900 is arranged at the output end of the hot air drying oven 100.

[0040] The gantry crane clamp type energy-saving tunnel oven equipment includes a hot air drying furnace 100 and a chain conveying device 200 arranged inside the hot air drying furnace 100. A PCB board fixing bracket 500 is provided on each link unit of the chain conveying device 200. The PCB board fixing bracket 500 includes a gantry structure enclosed by a base 1, a bracket 2, and a cross beam 3. A lifting clamp 6 is arranged on the cross beam 3, and a bracket 4 and a limit rod 5 are arranged on the base 1. After the PCB board is clamped and hoisted on the lifting clamp 6, the bracket 4 and the limit rod 5 can play a limiting role on the PCB board, preventing the PCB board from swinging back and forth during the conveying and transferring process in the hot air drying furnace 100, which can not only effectively improve the product quality, but also the distance between adjacent PCB board fixing brackets 500 is small, the interval is compact. Compared with the prior art, the hot air drying furnace 100 of the same length can convey and dry more PCB boards, or when conveying and drying the same number of PCB boards in the hot air drying furnace 100, the length of the chain conveying device 200 is shorter, the occupied space is small, the energy utilization rate is high, and it is more energy-saving; the input end and the output end of the hot air drying furnace 100 are mirror-image arranged with a lifting clamp opening device 600, a cross beam disassembly and assembly device 700, and a cross beam flipping device 800. The lifting clamp opening device 600 located at the input end of the hot air drying furnace 100 is used to open the lifting clamp 6 on the PCB board fixing bracket 500, facilitating the loading manipulator 300 to place the PCB board at the opening of the lifting clamp 6. The lifting clamp opening device 600 located at the output end of the hot air drying furnace 100 is used to open the lifting clamp 6 on the PCB board fixing bracket 500, facilitating the unloading manipulator 400 to take out the PCB board from the lifting clamp 6. The cross beam disassembly and assembly device 700 located at the input end of the hot air drying furnace 100 is used to remove the cross beam 3 of the PCB board fixing bracket 500 on the lower side of the chain conveying device 200, cooperate with the cross beam flipping device 800 to flip it to the upper side of the chain conveying device 200, and install the cross beam 3 on the PCB board fixing bracket 500 on the upper side of the chain conveying device 200. The cross beam disassembly and assembly device 700 located at the output end of the hot air drying furnace 100 is used to remove the cross beam 3 of the PCB board fixing bracket 500 on the upper side of the chain conveying device 200, cooperate with the cross beam flipping device 800 to flip it to the lower side of the chain conveying device 200, and install the cross beam 3 on the PCB board fixing bracket 500 on the lower side of the chain conveying device 200. The cross beam 3 is missing on the PCB board fixing bracket 500 at the turning point of the chain conveying device 200, which can prevent the loading manipulator 300 and the unloading manipulator 400 from interfering with the cross beam 3 at the turning point during the process of taking and placing materials. A lifting clamp cleaning device 900 is arranged at the output end of the hot air drying furnace 100. After the unloading manipulator 400 takes out the PCB board from the lifting clamp 6, the lifting clamp cleaning device 900 can clean the lifting clamp 6, effectively removing the residual PCB board ink on the lifting clamp 6, having the advantages of high automation degree, good operation stability, and strong continuous working ability, and can effectively improve the production efficiency.

[0041] Such as Figure 7As shown, preferably, a mounting seat 7 is provided on the support 2. A first mounting groove 701 for accommodating the cross beam 3 is provided on the mounting seat 7. A clamping component 8 for clamping and fixing the cross beam 3 is provided on the mounting seat 7. The clamping component 8 includes a first clamping jaw 801 and a second clamping jaw 802 rotatably arranged on the mounting seat 7, and a clamping spring 803 for keeping the first clamping jaw 801 and the second clamping jaw 802 in a clamped state. In this embodiment, the mounting seat 7 is fixedly provided on the support 2, and the cross beam 3 is embedded in the first mounting groove 701, which can effectively improve the connection stability between the cross beam 3 and the support 2, making the gantry structure have good stability; the first clamping jaw 801 and the second clamping jaw 802 are respectively rotatably connected to the mounting seat 7 through a rotating shaft, and a clamping spring 803 for making the two approach each other and keep in a clamped state is arranged between the first clamping jaw 801 and the second clamping jaw 802. After the cross beam 3 is embedded in the first mounting groove 701, the first clamping jaw 801 and the second clamping jaw 802 clamp and fix the cross beam 3 under the action of the clamping spring 803, preventing the cross beam 3 from disengaging from the mounting seat 7, further enhancing the stability of the gantry structure. The gantry structure has good running stability when clamping the PCB board and conveying it in the hot air drying furnace 100, which is beneficial to improving the product quality.

[0042] As Figure 6 shown, preferably, a moving seat 9 is provided at the bottom of the limiting rod 5. The limiting rod 5 is arranged on the base 1 with adjustable spacing through the moving seat 9. A plurality of groups of limiting wing plates 501 are provided on the limiting rod 5, and a tapered convex part 502 gradually narrowing from the middle to the inside is formed on the limiting wing plate 501. In this embodiment, the limiting rod 5 is movably arranged on the base 1 through the moving seat 9, which can flexibly adjust the spacing between the two groups of limiting rods 5 to meet the production requirements of PCB boards with different size specifications, with high flexibility in use and a wide range of applications; a plurality of groups of limiting wing plates 501 are arranged on the limiting rod 5 from top to bottom, and a tapered convex part 502 is formed on the limiting wing plate 501. Since a plurality of PCB board fixing frames 500 are arranged in a row front and back on the chain conveying device 200, a V-shaped gap formed by combining two tapered convex parts 502 will be formed between the adjacent front and back limiting wing plates 501. The PCB board is located in the V-shaped gap, which can prevent the PCB board from swinging back and forth during conveying in the hot air drying furnace 100, resulting in the PCB board falling off or deforming, which is beneficial to improving the product quality; in other embodiments, a V-shaped limiting groove can also be formed on the limiting wing plate 501, and the limiting rod 5 on a single PCB board fixing frame 500 can also prevent the PCB board from swinging back and forth, not limited to this embodiment.

[0043] As Figures 8 to 11As shown, preferably, the clamp opening device 600 includes a first substrate 10 and a first lifting drive mechanism 11 for driving the first substrate 10 to reciprocate in the vertical direction. A plurality of groups of pressing blocks 12 for pressing and opening the clamp 6 are movably arranged on the first substrate 10. The pressing blocks 12 are fixedly connected to a movable plate 14 through connecting rods 13. An opening and closing drive mechanism 15 for driving the movable plate 14 to reciprocate in the horizontal direction is installed on the movable plate 14, so that the movable plate 14 drives the pressing blocks 12 to reciprocate. In this embodiment, a slide rail is fixedly arranged on the first substrate 10, and a slider is fixedly arranged on the pressing block 12. Then, the pressing block 12 is slidably connected to the first substrate 10 through a slide rail-slider mechanism. The rigid structure and precision machining of the slide rail can ensure that the pressing block 12 moves along a fixed track on the first substrate 10, avoiding deviation of the pressing block 12 during the reciprocating movement; the pressing block 12 is fixedly connected to the movable plate 14 through the connecting rod 13, and an opening and closing drive mechanism 15 is arranged between the movable plate 14 and the first substrate 10. Specifically, the opening and closing drive mechanism 15 adopts a telescopic cylinder. The cylinder body of the telescopic cylinder is fixedly connected to the movable plate 14, and the piston rod of the telescopic cylinder is fixedly connected to the first substrate 10. When the piston rod of the opening and closing drive mechanism 15 makes an extending action, it drives the movable plate 14 to move away from the first substrate 10, and then drives the pressing block 12 to move towards the clamp 6. The pressing block 12 presses and opens the clamp 6, facilitating the loading manipulator 300 to place the PCB board at the opening of the clamp 6, or the unloading manipulator 400 to take out the PCB board from the clamp 6; in this embodiment, a guiding mechanism is arranged between the first substrate 10 and the movable plate 14. The guiding mechanism includes a guiding column fixedly arranged on the first substrate 10 and a guiding sleeve fixedly arranged on the movable plate 14. The guiding column passes through the guiding sleeve, which can ensure that the movable plate 14 moves along the axial direction of the guiding column on the first substrate 10, avoiding yaw of the movable plate 14 during the reciprocating movement.

[0044] Preferably, a plurality of groups of positioning card plates 16 for engaging and positioning with the cross beam 3 are fixedly arranged on the first substrate 10, and positioning card slots 1601 are formed on the positioning card plates 16. In this embodiment, when the first lifting drive mechanism 11 drives the first substrate 10 to make a descending movement, the positioning card slots 1601 on the positioning card plates 16 will be engaged with the cross beam 3, playing a role in centering and calibrating the cross beam 3 to ensure the correct position of the pressing block 12 and the clamp 6, thereby ensuring the accuracy of the movement of the pressing block 12 to open the clamp 6.

[0045] In actual application, the clamp opening device 600 is respectively arranged at the top of the input end of the hot air drying furnace 100 and the top of the output end of the hot air drying furnace 100. The first lifting drive mechanism 11 is fixedly arranged in the hot air drying furnace 100. In the initial state, the first substrate 10 is located above the PCB board fixing bracket 500. Here, the clamp opening device 600 at the output end of the hot air drying furnace 100 is taken as an example for illustration: When a group of PCB board fixing brackets 500 reach the position below the first substrate 10, the first lifting drive mechanism 11 drives the first substrate 10 to move downward. The positioning card slot 1601 on the positioning card plate 16 will be engaged with the cross beam 3 to ensure that the position of the pressing block 12 is aligned with that of the clamp 6. Then, the piston rod of the opening and closing drive mechanism 15 extends, and the movable plate 14 moves away from the first substrate 10. The movable plate 14 drives the pressing block 12 to move through the connecting rod 13, so that the pressing block 12 presses and opens the clamp 6. The blanking manipulator 400 takes out the PCB board from the clamp 6. Then, the piston rod of the opening and closing drive mechanism 15 retracts, the pressing block 12 is disengaged from the clamp 6, and the first lifting drive mechanism 11 drives the first substrate 10 to move upward. The first substrate 10 returns to the position above the PCB board fixing bracket 500 and waits for the next group of PCB board fixing brackets 500 to reach. The above is a complete working process of the clamp opening device 600; the clamp opening device 600 at the input end of the hot air drying furnace 100 has the same working process as above. The pressing block 12 presses and opens the clamp 6. The loading manipulator 300 places the PCB board at the opening of the clamp 6, and the pressing block 12 is disengaged from the clamp 6. Then, the PCB board is clamped and fixed on the PCB board fixing bracket 500 through the clamp 6.

[0046] As Figures 12 to 14 shown, preferably, the cross beam disassembly and assembly device 700 includes a second substrate 17. An opening and lifting block 18 for pushing open the first jaw 801 and the second jaw 802 and a rotary clamping cylinder 19 for clamping and driving the cross beam 3 to rotate are movably arranged on the second substrate 17. A second lifting drive mechanism 20 for driving the opening and lifting block 18 to reciprocate in the vertical direction and a third lifting drive mechanism 21 for driving the rotary clamping cylinder 19 to reciprocate in the vertical direction are arranged on the second substrate 17. In this embodiment, a slide rail is fixedly arranged on the second substrate 17. The opening and lifting block 18 is slidably connected to the slide rail. The rigid structure and precision machining of the slide rail can ensure that the opening and lifting block 18 moves along a fixed track on the second substrate 17, avoiding the deviation of the opening and lifting block 18 during the reciprocating movement; the rotary clamping cylinder 19 is used for clamping the cross beam 3. The second lifting drive mechanism 20 drives the opening and lifting block 18 to move upward, so that the opening and lifting block 18 upwardly presses and pushes open the first jaw 801 and the second jaw 802 on the mounting seat 7. The third lifting drive mechanism 21 drives the rotary clamping cylinder 19 to move upward, so that the cross beam 3 is disengaged from the mounting seat 7.

[0047] In actual application, the crossbeam disassembly and assembly device 700 is respectively arranged at the input end and the output end of the hot air drying furnace 100. Here, the crossbeam disassembly and assembly device 700 at the output end of the hot air drying furnace 100 is taken as an example for description: The crossbeam disassembly and assembly device 700 removes the crossbeam 3 of the PCB board fixing frame 500 above the chain conveyor device 200, cooperates with the crossbeam flipping device 800 to flip it to the lower side of the chain conveyor device 200, and installs the crossbeam 3 on the PCB board fixing frame 500 under the chain conveyor device 200. In the initial state, the rotating clamping cylinder 19 is located above the PCB board fixing frame 500, and the unlocking lifting block 18 is located below the crossbeam 3. When a group of PCB board fixing frames 500 are in place, the third lifting drive mechanism 21 drives the rotating clamping cylinder 19 to move downward. After the rotating clamping cylinder 19 is aligned with the crossbeam 3, the jaws of the rotating clamping cylinder 19 clamp the crossbeam 3. Then the second lifting drive mechanism 20 extends, driving the unlocking lifting block 18 to push. The unlocking lifting block 18 upwardly presses and pushes open the first jaw 801 and the second jaw 802 on the mounting seat 7. At this time, the third lifting drive mechanism 21 extends, driving the rotating clamping cylinder 19 to lift. The rotating clamping cylinder 19 drives the crossbeam 3 to move upward, so that the crossbeam 3 is disengaged from the mounting seat 7. The unlocking lifting block 18 returns to its initial position on the second substrate 17, realizing the disassembly process of the crossbeam 3. Then the crossbeam disassembly and assembly device 700 cooperates with the crossbeam flipping device 800 to flip the crossbeam 3 from the upper side of the chain conveyor device 200 to the lower side. When the crossbeam 3 is flipped to be aligned with another group of PCB board fixing frames 500 below (the opening of the first mounting groove 701 of the mounting seat 7 faces downward), the second lifting drive mechanism 20 extends, driving the unlocking lifting block 18 to push. The unlocking lifting block 18 downwardly presses and pushes open the first jaw 801 and the second jaw 802 on the mounting seat 7. At this time, the third lifting drive mechanism 21 retracts, driving the rotating clamping cylinder 19 to lift. The rotating clamping cylinder 19 drives the crossbeam 3 to move upward, so that the crossbeam 3 is embedded in the mounting seat 7. The unlocking lifting block 18 returns to its initial position on the second substrate 17, and the first jaw 801 and the second jaw 802 clamp and fix the crossbeam 3, realizing the installation process of the crossbeam 3. Then the crossbeam disassembly and assembly device 700 cooperates with the crossbeam flipping device 800 to flip back from the lower side of the chain conveyor device 200 to the upper side, waiting for the next group of PCB board fixing frames 500 to be in place. The above is a complete working process of the crossbeam disassembly and assembly device 700; The crossbeam disassembly and assembly device 700 at the input end of the hot air drying furnace 100 has the same working process as above. The crossbeam disassembly and assembly device 700 removes the crossbeam 3 of the PCB board fixing frame 500 below the chain conveyor device 200, cooperates with the crossbeam flipping device 800 to flip it to the upper side, and installs the crossbeam 3 on the PCB board fixing frame 500 above the chain conveyor device 200.

[0048] Such as Figures 15 to 19As shown, preferably, the beam turning device 800 includes a third base plate 22 and a guide plate 23, a track plate 24 is fixedly provided on the third base plate 22, a turning plate 25 is movably provided between the track plate 24 and the guide plate 23, a turning driving mechanism 26 is provided on the turning plate 25 for driving the turning plate 25 to reciprocate along the track plate 24 and the guide plate 23, and the beam disassembling device 700 is installed on the turning plate 25 through the second base plate 17. In this embodiment, the third base plate 22 and the guide plate 23 are fixedly provided in the hot air drying furnace 100, the track plate 24 is fixedly provided on the third base plate 22, a turning plate 25 is movably provided between the track plate 24 and the guide plate 23, and the turning driving mechanism 26 drives the turning plate 25 to reciprocate along the track plate 24 and the guide plate 23, so as to realize the turning process of driving the beam disassembling device 700 to turn from top to bottom or from bottom to top.

[0049] Preferably, a guide rail 2401 is provided on the track plate 24 , and a first roller clamping mechanism 2501 for rolling contact with the guide rail 2401 and a second roller clamping mechanism 2502 for rolling contact with the guide plate 23 are provided on the flip plate 25 . In this embodiment, an arc-shaped guide rail 2401 is provided on the track plate 24, and the first roller clamping mechanism 2501 includes a first roller arranged on the outer side of the guide rail 2401 and a second roller arranged on the inner side of the guide rail 2401. The first roller and the second roller are respectively arranged on the inner and outer sides of the guide rail 2401 to form a centering clamp, which can effectively prevent the flip plate 25 from separating from the guide rail 2401 during the reciprocating motion and has good operating stability; the second roller clamping mechanism 2502 includes a third roller arranged on the inner side of the guide plate 23 and a fourth roller arranged on the outer side of the guide plate 23. The third roller and the fourth roller are respectively arranged on the inner and outer sides of the guide plate 23 to form a centering clamp, which can ensure that the flip plate 25 moves along the fixed track of the guide plate 23 and avoid the flip plate 25 from deviating during the reciprocating motion.

[0050] Preferably, a gear structure 2402 is provided on the periphery of the track plate 24, and the flip drive mechanism 26 includes a driving gear 2601 and a driving motor 2602, the driving motor 2602 is fixedly arranged on the flip plate 25, the driving gear 2601 is circumferentially fixedly connected to the output shaft of the driving motor 2602, and the driving gear 2601 is meshedly connected to the gear structure 2402. In this embodiment, a gear structure 2402 is provided on the periphery of the track plate 24, and a driving motor 2602 is installed on the flip plate 25, the output shaft of the driving motor 2602 is circumferentially fixedly connected to the driving gear 2601, and the driving gear 2601 is meshedly connected to the gear structure 2402, which can drive the flip plate 25 to move along a fixed track on the periphery of the track plate 24.

[0051] In actual application, the crossbeam turning device 800 is respectively arranged at the input end and the output end of the hot air drying furnace 100. Here, the crossbeam turning device 800 at the output end of the hot air drying furnace 100 is taken as an example for illustration: In the initial state, the turning plate 25 is located above the chain conveying device 200, and the crossbeam disassembly and assembly device 700 is installed on the turning plate 25. After the crossbeam disassembly and assembly device 700 completes the disassembly process of the crossbeam 3, the driving motor 2602 drives the driving gear 2601 to rotate, and then the driving gear 2601 drives the turning plate 25 to rotate around the axis along the track plate 24. The turning plate 25 moves from the upper position to the lower position, completing the first turning process of the crossbeam disassembly and assembly device 700. After the crossbeam disassembly and assembly device 700 completes the assembly process of the crossbeam 3, the driving motor 2602 drives the driving gear 2601 to rotate in the reverse direction, and the turning plate 25 returns from the lower position to the upper position, completing the second turning process of the crossbeam disassembly and assembly device 700. The above is a complete working process of the crossbeam turning device 800; the working process of the crossbeam turning device 800 at the input end of the hot air drying furnace 100 is the same as the above. In the initial state, the turning plate 25 is located below the chain conveying device 200. After the crossbeam disassembly and assembly device 700 completes the disassembly process of the crossbeam 3, the turning plate 25 moves from the lower position to the upper position, completing the first turning process of the crossbeam disassembly and assembly device 700. After the crossbeam disassembly and assembly device 700 completes the assembly process of the crossbeam 3, the turning plate 25 returns from the upper position to the lower position, completing the second turning process of the crossbeam disassembly and assembly device 700.

[0052] As Figure 20 and Figure 21 shown, preferably, the clamp cleaning device 900 includes a cleaning tank 27 and a fourth lifting drive mechanism 28 for driving the cleaning tank 27 to reciprocate vertically. An ultrasonic generator 29 is arranged in the cleaning tank 27. In this embodiment, the fourth lifting drive mechanism 28 is fixedly arranged in the hot air drying furnace 100. An ultrasonic generator 29 is arranged in the cleaning tank 27, and the cleaning tank 27 is filled with ink cleaning agent. The fourth lifting drive mechanism 28 drives the cleaning tank 27 to move upward, so that the clamp 6 is immersed in the ink cleaning agent. The ultrasonic generator 29 works to perform ultrasonic cleaning on the clamp 6 in the ink cleaning agent, which can effectively remove the residual PCB board ink on the clamp 6.

[0053] In actual application, the clamp cleaning device 900 is arranged at the bottom of the output end of the hot air drying furnace 100. In the initial state, the cleaning tank 27 is located below the PCB board fixing frame 500. It should be noted that when the cross beam 3 at the output end of the hot air drying furnace 100 is at the upper side position of the chain conveying device 200, the clamp 6 has its opening facing downwards. After being flipped from the upper side position to the lower side position by the cross beam flipping device 800, the opening of the clamp 6 faces upwards. Therefore, it is necessary to rotate the clamping cylinder 19 to rotate the cross beam 3 by 180 degrees to make the opening of the clamp 6 face downwards. After the cross beam 3 is installed in place, the fourth lifting drive mechanism 28 drives the cleaning tank 27 to move upwards, so that the clamp 6 is immersed in the ink cleaning agent, and ultrasonic cleaning is carried out in cooperation with the ultrasonic generator 29. After ultrasonic cleaning for a period of time, the fourth lifting drive mechanism 28 drives the cleaning tank 27 to move downwards and waits for the next group of cross beams 3 to be installed in place. It should be noted that when the cross beam 3 at the input end of the hot air drying furnace 100 is at the lower side of the chain conveying device 200, the clamp 6 has its opening facing downwards. After being flipped from the lower side position to the upper side position by the cross beam flipping device 800, the opening of the clamp 6 faces upwards. Therefore, it is necessary to rotate the clamping cylinder 19 to rotate the cross beam 3 by 180 degrees to make the opening of the clamp 6 face downwards, which is convenient for the loading manipulator 300 to place the PCB board at the opening of the clamp 6.

[0054] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art of this technology, the improvements and transformations obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A gantry crane clamp type energy-saving tunnel oven equipment, characterized in that, It includes a hot air drying furnace (100) and a chain conveying device (200) arranged inside the hot air drying furnace (100). An upper loading manipulator (300) is arranged at the input end of the hot air drying furnace (100), and a discharging manipulator (400) is arranged at the output end of the hot air drying furnace (100). The chain conveying device (200) includes several groups of chain link units connected end to end. A PCB board fixing frame (500) is arranged on each group of chain link units. The PCB board fixing frame (500) includes a gantry structure enclosed by a base (1), a bracket (2), and a cross beam (3). A bracket (4) for supporting the PCB board and a limiting rod (5) for preventing the PCB board from swinging are arranged on the base (1). A hanging clamp (6) for clamping the PCB board is arranged on the cross beam (3). Clamp opening devices (600), cross beam disassembly and assembly devices (700), and cross beam flipping devices (800) are arranged in a mirror image at the input end and the output end of the hot air drying furnace (100). A clamp cleaning device (900) is arranged at the output end of the hot air drying furnace (100).

2. The gantry crane clamp type energy-saving tunnel oven equipment according to claim 1, characterized in that, An installation seat (7) is arranged on the bracket (2). A first installation groove (701) for accommodating the cross beam (3) is arranged on the installation seat (7). A clamp component (8) for clamping and fixing the cross beam (3) is arranged on the installation seat (7). The clamp component (8) includes a first clamping jaw (801) and a second clamping jaw (802) rotatably arranged on the installation seat (7), and a clamping spring (803) for keeping the first clamping jaw (801) and the second clamping jaw (802) in a clamped state.

3. The gantry crane clamp type energy-saving tunnel oven equipment according to claim 2, characterized in that, A moving seat (9) is arranged at the bottom of the limiting rod (5). The limiting rod (5) is arranged on the base (1) with adjustable spacing through the moving seat (9). Several groups of limiting wing plates (501) are arranged on the limiting rod (5). A tapered convex part (502) that gradually narrows from the middle to the inside is formed on the limiting wing plate (501).

4. The gantry crane clamp type energy-saving tunnel oven equipment according to claim 1, characterized in that, The clamp opening device (600) includes a first substrate (10) and a first lifting drive mechanism (11) for driving the first substrate (10) to reciprocate in the vertical direction. Several groups of pressing blocks (12) for pressing and opening the hanging clamp (6) are movably arranged on the first substrate (10). The pressing blocks (12) are fixedly connected to a movable plate (14) through a connecting rod (13). An opening and closing drive mechanism (15) for driving the movable plate (14) to reciprocate in the horizontal direction is installed on the movable plate (14), so that the movable plate (14) drives the pressing blocks (12) to make reciprocating movements.

5. The gantry crane clamp type energy-saving tunnel oven equipment according to claim 4, characterized in that, Several groups of positioning card boards (16) for engaging and positioning with the cross beam (3) are fixedly arranged on the first substrate (10). A positioning card slot (1601) is opened on the positioning card board (16).

6. The gantry crane clamp type energy-saving tunnel oven equipment according to claim 2, characterized in that, The crossbeam disassembly and assembly device (700) includes a second substrate (17). An unlocking lifting block (18) for pushing open the first jaw (801) and the second jaw (802) and a rotary clamping cylinder (19) for clamping and driving the crossbeam (3) to rotate are movably arranged on the second substrate (17). A second lifting drive mechanism (20) for driving the unlocking lifting block (18) to reciprocate in the vertical direction and a third lifting drive mechanism (21) for driving the rotary clamping cylinder (19) to reciprocate in the vertical direction are arranged on the second substrate (17).

7. The gantry crane clamp type energy-saving tunnel oven equipment according to claim 6, characterized in that, The crossbeam turning device (800) includes a third substrate (22) and a guide plate (23). A track plate (24) is fixedly arranged on the third substrate (22). A turning plate (25) is movably arranged between the track plate (24) and the guide plate (23). A turning drive mechanism (26) for driving the turning plate (25) to reciprocate along the track plate (24) and the guide plate (23) is arranged on the turning plate (25). The crossbeam disassembly and assembly device (700) is installed on the turning plate (25) through the second substrate (17).

8. The gantry crane clamp type energy-saving tunnel oven equipment according to claim 7, characterized in that, A guide rail (2401) is arranged on the track plate (24). A first roller clamping mechanism (2501) for rolling contact with the guide rail (2401) and a second roller clamping mechanism (2502) for rolling contact with the guide plate (23) are arranged on the turning plate (25).

9. The gantry crane clip type energy-saving tunnel oven equipment according to claim 8, characterized in that, A gear structure (2402) is arranged on the outer periphery of the track plate (24). The turning drive mechanism (26) includes a driving gear (2601) and a driving motor (2602). The driving motor (2602) is fixedly arranged on the turning plate (25). The driving gear (2601) is circumferentially and fixedly connected to the output shaft of the driving motor (2602). The driving gear (2601) is meshed and connected with the gear structure (2402).

10. The gantry crane clamp type energy-saving tunnel oven equipment according to claim 1, characterized in that, The hanging clamp cleaning device (900) includes a cleaning tank (27) and a fourth lifting drive mechanism (28) for driving the cleaning tank (27) to reciprocate in the vertical direction. An ultrasonic generator (29) is arranged in the cleaning tank (27).

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