A gantry crane type energy-saving tunnel drying equipment

Abstract

The present invention relates to the technical field of PCB production equipment, and discloses a gantry-type, hanging-clamp-type energy-saving tunnel oven device, comprising a hot air drying furnace and a chain conveyor device. The hot air drying furnace input end is provided with a loading robot, and the output end is provided with an unloading robot. The chain conveyor device includes several groups of chain link units, each group of chain link units is provided with a PCB board fixing frame, and the PCB board fixing frame comprises a gantry structure enclosed by a base, a bracket, and a crossbeam. The base is provided with a bracket and a limit rod, and the crossbeam is provided with a hanging clamp. The input and output ends of the hot air drying furnace are provided with a hanging clamp opening device, a crossbeam disassembly device, and a crossbeam flipping device in mirrored form. The output end of the hot air drying furnace is provided with a hanging clamp cleaning device. This gantry-type, hanging-clamp-type energy-saving tunnel oven device has the advantages of a high degree of automation, good operational stability, and strong continuous working capacity, and can effectively improve product quality and production efficiency.

Description

Technical Field

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

[0002] PCBs, also known as printed circuit boards, are the electrical connections for electronic components and are a crucial component in the electronics industry. Currently, PCBs are typically dried in hot air drying ovens, where they are hoisted and moved by clamping devices. However, during this process, the hot air blows the PCBs back and forth, causing them to deform and damage the clamping positions, impacting product quality. Furthermore, to prevent collisions between PCBs, the clamping devices are designed with a large front-to-back spacing, resulting in longer conveyor lines and a large footprint. 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-type energy-saving tunnel drying oven equipment with high degree of automation, good operating stability, strong continuous working ability, and the ability to effectively improve product quality and production efficiency.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A gantry-type energy-saving tunnel drying equipment comprises a hot air drying furnace and a chain conveyor device arranged in the hot air drying furnace, wherein the input end of the hot air drying furnace is provided with a loading manipulator, and the output end of the hot air drying furnace is provided with an unloading manipulator;

[0006] The chain conveyor device includes a plurality of groups of chain link units connected end to end, each group of chain link units is provided with a PCB board fixing frame, and the PCB board fixing frame includes a gantry structure enclosed by a base, a bracket and a crossbeam. The base is provided with a bracket for supporting the PCB board and a limit rod for preventing the PCB board from swinging, and the crossbeam is provided with a hanging clamp for clamping the PCB board;

[0007] The input end and output end of the hot air drying furnace are mirror-imaged and provided with a hanging clamp opening device, a beam disassembling device and a beam turning device, and the output end of the hot air drying furnace is provided with a hanging clamp cleaning device.

[0008] As a further improvement of the above technical solution:

[0009] The bracket is provided with a mounting seat, the mounting seat is provided with a first mounting groove for accommodating the beam, the mounting seat is provided with a clamping assembly for clamping and fixing the beam, the clamping assembly includes a first clamping jaw and a second clamping jaw rotatably provided on the mounting seat, and a clamping spring for keeping the first clamping jaw and the second clamping jaw in a clamped state.

[0010] A movable seat is provided at the bottom of the limiting rod, and the limiting rod is arranged on the base with an adjustable spacing through the movable seat. A plurality of groups of limiting wing plates are provided on the limiting rod, and a conical convex portion is formed on the limiting wing plate that gradually narrows from the middle to the inside.

[0011] The hanging clamp opening device includes a first base plate and a first lifting drive mechanism for driving the first base plate to move back and forth in a vertical direction. Several groups of pressing blocks for pressing to open the hanging clamp are movably arranged on the first base plate. The pressing blocks are fixedly connected to the movable plate through a connecting rod. An opening and closing drive mechanism for driving the movable plate to move back and forth in a horizontal direction is installed on the movable plate, so that the movable plate drives the pressing blocks to move back and forth.

[0012] A plurality of positioning clamping plates for engaging with the crossbeam for positioning are fixedly provided on the first base plate, and positioning clamping slots are provided on the positioning clamping plates.

[0013] The beam disassembly and assembly device includes a second base plate, on which are movably provided a buckle lifting block for pushing open the first clamping jaw and the second clamping jaw, and a rotary clamping cylinder for clamping and driving the beam to rotate. The second base plate is provided with a second lifting drive mechanism for driving the buckle lifting block to move back and forth in the vertical direction, and a third lifting drive mechanism for driving the rotary clamping cylinder to move back and forth in the vertical direction.

[0014] The beam flipping device includes a third base plate and a guide plate, a track plate is fixedly provided on the third base plate, a flip plate is movably provided between the track plate and the guide plate, and a flip driving mechanism is provided on the flip plate for driving the flip plate to reciprocate along the track plate and the guide plate. The beam disassembly and assembly device is installed on the flip plate through the second base plate.

[0015] The track plate is provided with a guide rail, and the flip plate is provided with a first roller clamping mechanism for rolling contact with the guide rail and a second roller clamping mechanism for rolling contact with the guide plate.

[0016] A gear structure is provided on the outer periphery of the track plate. The flip drive mechanism includes a driving gear and a drive motor. The drive motor is fixedly arranged on the flip plate. The driving gear is circumferentially fixedly connected to the output shaft of the drive motor. The driving gear is meshed with the gear structure.

[0017] The hanging clamp cleaning device includes a cleaning tank and a fourth lifting drive mechanism for driving the cleaning tank to move back and forth in a vertical direction. An ultrasonic generator is provided in the cleaning tank.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. The gantry-type energy-saving tunnel oven equipment of the present invention includes a hot air drying furnace and a chain conveyor device disposed within the hot air drying furnace, wherein each group of chain link units of the chain conveyor device is provided with a PCB board fixing frame, and the PCB board fixing frame includes a gantry structure formed by a base, a bracket, and a crossbeam. The crossbeam is provided with a hanging clamp, and the base is provided with a bracket and a limit rod. When the PCB board is clamped and hoisted on the hanging clamp, the bracket and the limit rod can limit the PCB board, preventing the PCB board from swinging back and forth during transportation in the hot air drying furnace. This can not only effectively improve product quality, but also reduce the spacing between adjacent PCB board fixing frames, making the spacing compact. Compared with the prior art, a hot air drying furnace of the same length can transport and dry more PCB boards, or the same number of PCB boards can be transported and dried in the hot air drying furnace. The chain conveyor device is shorter in length, occupies less space, has high energy utilization rate, and is more energy-efficient.

[0020] Second, the input and output ends of the hot air drying furnace are mirror-imaged and equipped with a hanging clamp opening device, a crossbeam disassembling device and a crossbeam turning device. The hanging clamp opening device is used to open the hanging clamp on the PCB board fixing frame to facilitate the loading robot to load or the unloading robot to take the material. The crossbeam disassembling device at the input end of the hot air drying furnace is used to remove the crossbeam of the PCB board fixing frame on the lower side of the chain conveyor device, and cooperate with the crossbeam turning device to turn it to the upper side of the chain conveyor device, and install the crossbeam on the PCB board fixing frame on the upper side of the chain conveyor device. The crossbeam disassembling device at the output end of the hot air drying furnace is used to remove the crossbeam of the PCB board fixing frame on the upper side of the chain conveyor device. Cooperate with the crossbeam turning device to turn it to the lower side of the chain conveyor device, and install the crossbeam on the PCB board fixing frame on the lower side of the chain conveyor device. The PCB board fixing frame at the rotating part of the chain conveyor device lacks a crossbeam, which can prevent the loading robot and the unloading robot from interfering with the crossbeam at the rotating part during the process of taking and unloading materials. A hanging clamp cleaning device is provided at the output end of the hot air drying furnace. After the unloading robot removes the PCB board from the hanging clamp, the hanging clamp cleaning device can clean the hanging clamp and effectively remove the residual PCB board ink on the hanging clamp. It has the advantages of high degree of automation, good operating stability, and strong continuous working ability, which can effectively improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the gantry crane clamp type energy-saving tunnel drying equipment of the present invention.

[0022] Figure 2 This is a structural schematic diagram of the gantry-type energy-saving tunnel drying equipment of the present invention from a front view.

[0023] Figure 3 It is a structural diagram of the chain conveyor device.

[0024] Figure 4 This is a schematic diagram of the structures of the clamp opening device, beam disassembly and assembly device, and beam flipping device.

[0025] Figure 5 Schematic diagram of the structure of the PCB board fixing frame.

[0026] Figure 6 This is an enlarged view of the limit rod details.

[0027] Figure 7 A detailed enlarged view of the mount and clip assembly.

[0028] Figure 8 This is a schematic diagram of the structure of the clamp opening device.

[0029] Figure 9 This is an enlarged view of the details of the pressure block and positioning card.

[0030] Figure 10This is a schematic diagram of the structure of the clamp opening device from an upward perspective.

[0031] Figure 11 for Figure 10 Enlarged view of detail A.

[0032] Figure 12 This is a structural diagram of the beam disassembly and assembly device.

[0033] Figure 13 This is a schematic diagram of the disassembly of the beam disassembly and assembly device.

[0034] Figure 14 This is an enlarged view of the details of the buckle lifting block and clip assembly.

[0035] Figure 15 It is a structural schematic diagram of the beam turning device.

[0036] Figure 16 This is a structural diagram of the beam turning device from another angle.

[0037] Figure 17 for Figure 16 Enlarged view of detail B.

[0038] Figure 18 for Figure 16 Enlarged view of detail C.

[0039] Figure 19 Enlarged view of the details of the track plate, flip plate and guide plate.

[0040] Figure 20 It is a structural schematic diagram of the hanging clamp cleaning device.

[0041] Figure 21 This is a schematic diagram of the interior of the clamp cleaning device.

[0042] Legend:

[0043] 100, hot air drying oven; 200, chain conveyor; 300, loading robot; 400, unloading robot; 500, PCB board fixing frame; 600, hanging clamp opening device; 700, crossbeam disassembly and assembly device; 800, crossbeam turning device; 900, hanging clamp cleaning device;

[0044] 1. Base; 2. Bracket; 3. Beam; 4. Bracket; 5. Limiting rod; 501. Limiting wing plate; 502. Conical protrusion; 6. Hanging clamp; 7. Mounting seat; 701. First mounting slot; 8. Clamp assembly; 801. First clamping jaw; 802. Second clamping jaw; 803. Clamping spring; 9. Moving seat; 10. First base plate; 11. First lifting drive mechanism; 12. Pressing block; 13. Connecting rod; 14. Movable plate; 15. Opening and closing drive mechanism; 16. Positioning card plate; 1601. Positioning slot; 17. Second base plate Plate; 18. Buckle lifting block; 19. Rotary clamping cylinder; 20. Second lifting drive mechanism; 21. Third lifting drive mechanism; 22. Third base plate; 23. Guide plate; 24. Track plate; 2401. Guide rail; 2402. Gear structure; 25. Flip plate; 2501. First roller clamping mechanism; 2502. Second roller clamping mechanism; 26. Flip drive mechanism; 2601. Driving gear; 2602. Drive motor; 27. Cleaning tank; 28. Fourth lifting drive mechanism; 29. ​​Ultrasonic generator. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] like Figures 1 to 5 As shown, the gantry-type energy-saving tunnel drying equipment of this embodiment includes a hot air drying furnace 100 and a chain conveyor 200 arranged in the hot air drying furnace 100. The input end of the hot air drying furnace 100 is provided with a loading robot 300, and the output end of the hot air drying furnace 100 is provided with an unloading robot 400; the chain conveyor 200 includes a plurality of groups of chain link units connected end to end, each group of chain link units is provided with a PCB board fixing frame 500, and the PCB board fixing frame 500 includes a gantry structure enclosed by a base 1, a bracket 2 and a beam 3. The base 1 is provided with a bracket 4 for supporting the PCB board and a limit rod 5 for preventing the PCB board from swinging, and the beam 3 is provided with a hanging clamp 6 for clamping the PCB board; the input and output ends of the hot air drying furnace 100 are provided with a hanging clamp opening device 600, a beam disassembly device 700 and a beam turning device 800 in mirror image, and the output end of the hot air drying furnace 100 is provided with a hanging clamp cleaning device 900.

[0047] The gantry hanging clamp type energy-saving tunnel oven equipment includes a hot air drying furnace 100 and a chain conveyor 200 arranged in the hot air drying furnace 100, wherein each group of chain link units of the chain conveyor 200 is provided with a PCB board fixing frame 500, and the PCB board fixing frame 500 includes a gantry structure formed by a base 1, a bracket 2 and a crossbeam 3, a hanging clamp 6 is provided on the crossbeam 3, and a bracket 4 and a limit rod 5 are provided on the base 1. When the PCB board is clamped and hoisted on the hanging clamp 6, the bracket 4 and the limit rod 5 can limit the PCB board, preventing the PCB board from swinging back and forth during transportation in the hot air drying furnace 100, which can not only effectively improve product quality, but also ensure that adjacent PCB board fixing frames 5 are in a stable position. 00 is small and compact. Compared with the prior art, a hot air drying oven 100 of the same length can transport and dry more PCB boards, or the same number of PCB boards can be transported and dried in the hot air drying oven 100. The chain conveyor device 200 is shorter in length, occupies less space, has high energy utilization rate, and is more energy-efficient. The input and output ends of the hot air drying oven 100 are mirror-imaged and are provided with a hanging clamp opening device 600, a crossbeam disassembly device 700, and a crossbeam turning device 800. The hanging clamp opening device 600 located at the input end of the hot air drying oven 100 is used to open the hanging clamp 6 on the PCB board fixing frame 500, so that the loading robot 300 can place the PCB board at the opening of the hanging clamp 6. The hanging clamp opening device 600 at the output end is used to open the hanging clamp 6 on the PCB board fixing frame 500, so that the unloading robot 400 can take the PCB board out of the hanging clamp 6. The crossbeam disassembly and assembly device 700 at the input end of the hot air drying furnace 100 is used to remove the crossbeam 3 of the PCB board fixing frame 500 on the lower side of the chain conveyor device 200, cooperate with the crossbeam turning device 800 to turn it to the upper side of the chain conveyor device 200, and install the crossbeam 3 on the PCB board fixing frame 500 on the upper side of the chain conveyor device 200. The crossbeam disassembly and assembly device 700 at the output end of the hot air drying furnace 100 is used to remove the crossbeam 3 of the PCB board fixing frame 500 on the upper side of the chain conveyor device 200, cooperate with the crossbeam turning device 800 to turn it to the upper side of the chain conveyor device On the lower side of the chain conveyor 200, the crossbeam 3 is installed on the PCB board fixing frame 500 on the lower side of the chain conveyor 200. The PCB board fixing frame 500 located at the rotating part of the chain conveyor 200 lacks the crossbeam 3, which can prevent the loading robot 300 and the unloading robot 400 from interfering with the crossbeam 3 at the rotating part during the process of taking and unloading materials. The output end of the hot air drying furnace 100 is provided with a hanging clamp cleaning device 900. After the unloading robot 400 takes the PCB board out of the hanging clamp 6, the hanging clamp cleaning device 900 can clean the hanging clamp 6 and effectively remove the residual PCB board ink on the hanging clamp 6. It has the advantages of high degree of automation, good operating stability, and strong continuous working ability, and can effectively improve production efficiency.

[0048] like Figure 7As shown, preferably, a mounting seat 7 is provided on the bracket 2, and a first mounting groove 701 for accommodating the beam 3 is provided on the mounting seat 7. A clamping assembly 8 for clamping and fixing the beam 3 is provided on the mounting seat 7, and the clamping assembly 8 includes a first clamping jaw 801 and a second clamping jaw 802 rotatably provided 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, a mounting seat 7 is fixedly provided on the bracket 2, and the beam 3 is embedded in the first mounting groove 701, which can effectively improve the connection stability between the beam 3 and the bracket 2, so that the gantry structure is stable; the first clamping jaw 801 and the second clamping jaw 802 are respectively connected to the mounting seat 7 through a rotating shaft, and a clamping spring 803 is provided between the first clamping jaw 801 and the second clamping jaw 802 for bringing the two close to each other and maintaining a clamped state. After the beam 3 is embedded in the first mounting groove 701, the first clamping jaw 801 and the second clamping jaw 802 clamp the fixed beam 3 under the action of the clamping spring 803 to prevent the beam 3 from falling off from the mounting seat 7, further enhancing the stability of the gantry structure. The gantry structure has good operating stability for clamping the PCB board for transportation in the hot air drying furnace 100, which is conducive to improving product quality.

[0049] like Figure 6 As shown, preferably, a movable seat 9 is provided at the bottom of the limiting rod 5, and the limiting rod 5 is arranged on the base 1 with an adjustable spacing through the movable seat 9. Several groups of limiting wing plates 501 are provided on the limiting rod 5, and the limiting wing plates 501 are formed with a conical protrusion 502 that gradually narrows from the middle to the inside. In this embodiment, the limit rod 5 is movably arranged on the base 1 through the movable seat 9, and the distance between the two groups of limit rods 5 can be flexibly adjusted to meet the production requirements of PCB boards of different sizes and specifications. It has high flexibility in use and a wide range of applications. The limit rod 5 is provided with multiple groups of limit wings 501 from top to bottom, and a conical convex portion 502 is formed on the limit wings 501. Since multiple PCB board fixing frames 500 are arranged front and back on the chain conveyor 200, a V-shaped gap composed of two conical convex portions 502 is formed between the front and rear adjacent limit wings 501. The PCB board is located in the V-shaped gap, which can prevent the PCB board from swinging back and forth during transportation in the hot air drying furnace 100, causing the PCB board to fall off or deform, which is beneficial to improving product quality. In other embodiments, the limit wings 501 can also be formed with V-shaped limit grooves, so that the limit rod 5 on a single PCB board fixing frame 500 can also prevent the PCB board from swinging back and forth. It is not limited to this embodiment.

[0050] like Figures 8 to 11As shown, preferably, the hanging clamp opening device 600 includes a first base plate 10 and a first lifting drive mechanism 11 for driving the first base plate 10 to move back and forth in the vertical direction. The first base plate 10 is movably provided with a plurality of groups of pressing blocks 12 for pressing to open the hanging clamp 6. The pressing blocks 12 are fixedly connected to the movable plate 14 through a connecting rod 13. The movable plate 14 is installed with an opening and closing drive mechanism 15 for driving the movable plate 14 to move back and forth in the horizontal direction, so that the movable plate 14 drives the pressing blocks 12 to move back and forth. In this embodiment, a slide rail is fixedly provided on the first substrate 10, and a slider is fixedly provided on the pressing block 12. The pressing block 12 is slidably connected to the first substrate 10 through a slide rail and slider mechanism. The rigid structure and precision processing of the slide rail can ensure that the pressing block 12 moves along a fixed track on the first substrate 10, thereby preventing the pressing block 12 from deflecting during the reciprocating movement; the pressing block 12 is fixedly connected to the movable plate 14 through a connecting rod 13, and an opening and closing drive mechanism 15 is provided 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 is During the extension action, the movable plate 14 is driven to move away from the first substrate 10, and then the pressing block 12 is driven to move toward the hanging clamp 6. The pressing block 12 presses and opens the hanging clamp 6, so that the loading robot 300 can place the PCB board at the opening of the hanging clamp 6, or the unloading robot 400 can take the PCB board out of the hanging clamp 6. In this embodiment, a guide mechanism is provided between the first substrate 10 and the movable plate 14. The guide mechanism includes a guide column fixedly provided on the first substrate 10 and a guide sleeve fixedly provided on the movable plate 14. The guide column is inserted into the guide sleeve, which can ensure that the movable plate 14 moves along the axial direction of the guide column on the first substrate 10, thereby avoiding the movable plate 14 from swinging during the reciprocating movement.

[0051] Preferably, the first base plate 10 is fixedly provided with a plurality of positioning plates 16 for engaging with the crossbeam 3. Positioning slots 1601 are defined in the positioning plates 16. In this embodiment, when the first lifting drive mechanism 11 drives the first base plate 10 downward, the positioning slots 1601 in the positioning plates 16 engage with the crossbeam 3, thereby aligning and calibrating the crossbeam 3. This ensures that the pressing block 12 is aligned with the hanging clamp 6, thereby ensuring the accuracy of the movement of the pressing block 12 and the opening of the hanging clamp 6.

[0052] In actual application, the hanging clamp opening device 600 is respectively arranged at the top of the input end and the top of the output end of the hot air drying furnace 100, and 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 frame 500. Here, the hanging clamp opening device 600 at the output end of the hot air drying furnace 100 is taken as an example for explanation: when a group of PCB board fixing frames 500 are in place under the first substrate 10, the first lifting drive mechanism 11 drives the first substrate 10 to descend, and the positioning slot 1601 on the positioning card plate 16 will be engaged with the crossbeam 3 to ensure that the position of the pressure block 12 is aligned with the hanging clamp 6, and then the piston rod of the opening and closing drive mechanism 15 is extended, and the movable plate 14 moves away from the first substrate 10, and the movable plate 14 drives the pressure block through the connecting rod 13 12 moves, so that the pressing block 12 presses and opens the hanging clamp 6, the unloading robot 400 takes the PCB board out of the hanging clamp 6, and then the piston rod of the opening and closing drive mechanism 15 retracts, the pressing block 12 is released from the hanging clamp 6, and the first lifting drive mechanism 11 drives the first substrate 10 to rise, and the first substrate 10 is reset to above the PCB board fixing frame 500, waiting for the next group of PCB board fixing frames 500 to be in place. The above is a complete working process of the hanging clamp opening device 600; the hanging 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 hanging clamp 6, the loading robot 300 places the PCB board at the opening of the hanging clamp 6, the pressing block 12 is released from the hanging clamp 6, and then the PCB board is clamped and fixed on the PCB board fixing frame 500 through the hanging clamp 6.

[0053] like Figures 12 to 14 As shown, preferably, the beam disassembly and assembly device 700 includes a second base plate 17, on which a buckle lifting block 18 for pushing open the first clamping jaw 801 and the second clamping jaw 802 and a rotating clamping cylinder 19 for clamping and driving the beam 3 to rotate are movably provided, and the second base plate 17 is provided with a second lifting drive mechanism 20 for driving the buckle lifting block 18 to move back and forth in the vertical direction and a third lifting drive mechanism 21 for driving the rotating clamping cylinder 19 to move back and forth in the vertical direction. In this embodiment, a slide rail is fixedly provided on the second substrate 17, and the buckle lifting block 18 is slidably connected to the slide rail. The rigid structure and precision processing of the slide rail can ensure that the buckle lifting block 18 moves along a fixed track on the second substrate 17, thereby preventing the buckle lifting block 18 from offsetting during the reciprocating movement; the rotary clamping cylinder 19 is used to clamp the beam 3, and the second lifting drive mechanism 20 drives the buckle lifting block 18 to perform an upward movement, so that the buckle lifting block 18 squeezes upward and pushes open the first clamping jaw 801 and the second clamping jaw 802 on the mounting seat 7, and the third lifting drive mechanism 21 drives the rotary clamping cylinder 19 to perform an upward movement, so that the beam 3 is disengaged from the mounting seat 7.

[0054] 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. The crossbeam disassembly and assembly device 700 at the output end of the hot air drying furnace 100 is taken as an example for explanation: the crossbeam disassembly and assembly device 700 removes the crossbeam 3 of the PCB board fixing frame 500 on the upper side of the chain conveyor 200, cooperates with the crossbeam turning device 800 to turn it to the lower side of the chain conveyor 200, and installs the crossbeam 3 to the PCB board fixing frame 500 on the lower side of the chain conveyor 200. In the initial state, the rotary clamping cylinder 19 is located above the PCB board fixing frame 500, and the buckle lifting block 18 is located below the crossbeam 3. When a group of PCB board fixing frames 500 are in place, the third lifting block 800 is lifted. The lowering drive mechanism 21 drives the rotary clamping cylinder 19 to descend. After the rotary clamping cylinder 19 is aligned with the beam 3, the clamping claw of the rotary clamping cylinder 19 clamps the beam 3. Then the second lifting drive mechanism 20 extends to drive the buckle lifting block 18 to push. The buckle lifting block 18 squeezes upward and opens the first clamping claw 801 and the second clamping claw 802 on the mounting seat 7. At this time, the third lifting drive mechanism 21 extends to drive the rotary clamping cylinder 19 to lift. The rotary clamping cylinder 19 drives the beam 3 to move upward, so that the beam 3 is out of the mounting seat 7. The buckle lifting block 18 is reset to its initial position on the second base plate 17, realizing the disassembly process of the beam 3, and then the beam disassembly device 700 cooperates with the beam turning device 800 to turn the beam 3 from the upper side of the chain conveyor 200 to the lower side. When the beam 3 is turned to align with the other set of PCB board fixing frames 500 on the lower side (the first mounting groove 701 of the mounting seat 7 is open downward), the second lifting drive mechanism 20 extends, driving the buckle lifting block 18 to push, and the buckle lifting block 18 squeezes downward and opens the first clamping jaw 801 and the second clamping jaw 802 on the mounting seat 7. At this time, the third lifting drive mechanism 21 retracts, driving the rotary clamping cylinder 19 to lift, and the rotary clamping cylinder 19 drives the beam 3 to move upward, so that the beam 3 is embedded in the mounting seat 7, and the buckle lifting block 18 is reset to its initial position on the second base plate 17. The first clamping jaw 801 and the second clamping jaw 802 clamp the fixed beam 3 to complete the installation process of the beam 3. Then the beam disassembling and assembling device 700 cooperates with the beam turning device 800 to turn over from the lower side of the chain conveyor 200 to the upper side, waiting for the next set of PCB board fixing frames 500 to be in place. The above is a complete working process of the beam disassembling and assembling device 700; the beam disassembling and assembling device 700 at the input end of the hot air drying furnace 100 has the same working process as above. The beam disassembling and assembling device 700 removes the beam 3 of the PCB board fixing frame 500 on the lower side of the chain conveyor 200, cooperates with the beam turning device 800 to turn it to the upper side, and installs the beam 3 to the PCB board fixing frame 500 on the upper side of the chain conveyor 200.

[0055] like 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 mounted on the third base plate 22. A turning plate 25 is movably mounted between the track plate 24 and the guide plate 23. The turning plate 25 is provided with a turning drive mechanism 26 for driving the turning plate 25 to reciprocate along the track plate 24 and the guide plate 23. The beam disassembly and assembly device 700 is mounted on the turning plate 25 via the second base plate 17. In this embodiment, the third base plate 22 and the guide plate 23 are fixedly mounted in the hot air drying furnace 100. The track plate 24 is fixedly mounted on the third base plate 22. The turning plate 25 is movably mounted between the track plate 24 and the guide plate 23. The turning drive mechanism 26 drives the turning plate 25 to reciprocate along the track plate 24 and the guide plate 23, thereby achieving a turning process of driving the beam disassembly and assembly device 700 to turn from top to bottom or from bottom to top.

[0056] 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 provided on the outside of the guide rail 2401 and a second roller provided on the inside of the guide rail 2401. The first roller and the second roller are respectively provided 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 provided on the inner side of the guide plate 23 and a fourth roller provided on the outer side of the guide plate 23. The third roller and the fourth roller are respectively provided 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, thereby avoiding the flip plate 25 from offsetting during the reciprocating motion.

[0057] Preferably, a gear structure 2402 is provided on the outer periphery of the track plate 24, and the flip drive mechanism 26 includes a driving gear 2601 and a drive motor 2602. The drive motor 2602 is fixedly mounted on the flip plate 25, and the driving gear 2601 is circumferentially fixedly connected to the output shaft of the drive motor 2602. The driving gear 2601 is meshed with the gear structure 2402. In this embodiment, a gear structure 2402 is provided on the outer periphery of the track plate 24, and a drive motor 2602 is mounted on the flip plate 25. The output shaft of the drive motor 2602 is circumferentially fixedly connected to the driving gear 2601. The driving gear 2601 is meshed with the gear structure 2402, and can drive the flip plate 25 to move along a fixed track on the outer periphery of the track plate 24.

[0058] In actual application, the beam turning device 800 is respectively arranged at the input end and the output end of the hot air drying furnace 100. The beam turning device 800 at the output end of the hot air drying furnace 100 is taken as an example for explanation: in the initial state, the turning plate 25 is located on the upper side of the chain conveyor 200, and the beam disassembly and assembly device 700 is installed on the turning plate 25. When the beam disassembly and assembly device 700 completes the disassembly process of the beam 3, the driving motor 2602 drives the active gear 2601 to rotate, and the active gear 2601 drives the turning plate 25 to rotate around the axis along the track plate 24, and the turning plate 25 moves from the upper position to the lower position, completing the first turning process of the beam disassembly and assembly device 700. When the beam disassembly and assembly device 700 completes the installation process of the beam 3, the driving motor 2602 drives the active gear 2601 to rotate in the opposite direction, and the flip plate 25 is reset from the lower position to the upper position, completing the second flipping process of the beam disassembly and assembly device 700. The above is a complete working process of the beam flipping device 800; the beam flipping device 800 at the input end of the hot air drying furnace 100 has the same working process as above. In the initial state, the flip plate 25 is located at the lower side of the chain conveyor device 200. When the beam disassembly and assembly device 700 completes the disassembly process of the beam 3, the flip plate 25 moves from the lower position to the upper position, completing the first flipping process of the beam disassembly and assembly device 700. When the beam disassembly and assembly device 700 completes the installation process of the beam 3, the flip plate 25 is reset from the upper position to the lower position, completing the second flipping process of the beam disassembly and assembly device 700.

[0059] like Figure 20 and Figure 21 As shown, the hanging clamp cleaning device 900 preferably includes a cleaning tank 27 and a fourth lifting drive mechanism 28 for driving the cleaning tank 27 to reciprocate in a vertical direction. An ultrasonic generator 29 is disposed within the cleaning tank 27. In this embodiment, the fourth lifting drive mechanism 28 is fixedly disposed within the hot air drying furnace 100. The ultrasonic generator 29 is disposed within 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 ascend, thereby immersing the hanging clamp 6 in the ink cleaning agent. The operation of the ultrasonic generator 29 causes the hanging clamp 6 to undergo ultrasonic cleaning within the ink cleaning agent, effectively removing residual PCB ink from the hanging clamp 6.

[0060] In actual application, the hanging 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 beam 3 at the output end of the hot air drying furnace 100 is in the upper position of the chain conveyor 200, the hanging clamp 6 opens downward. After the beam flipping device 800 flips from the upper position to the lower position, the hanging clamp 6 opens upward. Therefore, it is necessary to rotate the clamping cylinder 19 to rotate the beam 3 180 degrees so that the hanging clamp 6 opens downward. When the beam 3 is installed in place, the fourth lifting drive mechanism 28 drives the cleaning tank 27 to rise, so that the hanging clamp 6 is immersed in the ink cleaning agent, and cooperates with the ultrasonic generator 29 to perform ultrasonic cleaning. After a period of ultrasonic cleaning, the fourth lifting drive mechanism 28 drives the cleaning tank 27 to descend, waiting for the next group of beams 3 to be installed in place. It should be noted that when the beam 3 at the input end of the hot air drying furnace 100 is on the lower side of the chain conveyor 200, the opening of the clamp 6 faces downward. After the beam flipping device 800 flips from the lower position to the upper position, the opening of the clamp 6 faces upward. Therefore, it is necessary to rotate the clamping cylinder 19 to rotate the beam 3 180 degrees so that the opening of the clamp 6 faces downward, which makes it easier for the loading robot 300 to place the PCB board at the opening of the clamp 6.

[0061] The above is only a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiment. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of the present invention should also be considered as the scope of protection of the present invention.

Claims

1. A gantry hanging clamp type energy-saving tunnel oven equipment, characterized in that, It comprises a hot air drying furnace (100) and a chain conveyor device (200) arranged in the hot air drying furnace (100), wherein the input end of the hot air drying furnace (100) is provided with a loading robot (300), and the output end of the hot air drying furnace (100) is provided with a unloading robot (400); The chain conveyor (200) comprises a plurality of groups of chain link units connected end to end, each group of chain link units being provided with a PCB board fixing frame (500), the PCB board fixing frame (500) comprising a gantry structure formed by a base (1), a bracket (2) and a crossbeam (3), the base (1) being provided with a bracket (4) for supporting the PCB board and a limit rod (5) for preventing the PCB board from swinging, and the crossbeam (3) being provided with a hanging clamp (6) for clamping the PCB board; The input end and output end of the hot air drying furnace (100) are provided with a hanging clamp opening device (600), a beam disassembling device (700), and a beam turning device (800) in mirror images, and the output end of the hot air drying furnace (100) is provided with a hanging clamp cleaning device (900); The bracket (2) is provided with a mounting seat (7), the mounting seat (7) is provided with a first mounting groove (701) for accommodating the crossbeam (3), the mounting seat (7) is provided with a clamping assembly (8) for clamping and fixing the crossbeam (3), the clamping assembly (8) comprising a first clamping jaw (801) and a second clamping jaw (802) rotatably provided 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; The hanging clamp opening device (600) comprises a first base plate (10) and a first lifting drive mechanism (11) for driving the first base plate (10) to move back and forth in a vertical direction, a plurality of pressing blocks (12) for pressing and opening the hanging clamp (6) are movably provided on the first base plate (10), the pressing blocks (12) are fixedly connected to the movable plate (14) via a connecting rod (13), and an opening and closing drive mechanism (15) for driving the movable plate (14) to move back and forth in a horizontal direction is installed on the movable plate (14), so that the movable plate (14) drives the pressing blocks (12) to move back and forth; The beam disassembly and assembly device (700) includes a second base plate (17), on which a buckle lifting block (18) for pushing open the first clamping jaw (801) and the second clamping jaw (802) and a rotary clamping cylinder (19) for clamping and driving the beam (3) to rotate are movably provided, and a second lifting drive mechanism (20) for driving the buckle lifting block (18) to move back and forth in the vertical direction and a third lifting drive mechanism (21) for driving the rotary clamping cylinder (19) to move back and forth in the vertical direction are provided on the second base plate (17).

2. The gantry-type energy-saving tunnel drying equipment according to claim 1 is characterized in that: A movable seat (9) is provided at the bottom of the limiting rod (5), and the limiting rod (5) is arranged on the base (1) with an adjustable spacing through the movable seat (9). A plurality of groups of limiting wing plates (501) are provided on the limiting rod (5), and a conical convex portion (502) that gradually narrows from the middle to the inside is formed on the limiting wing plates (501).

3. The gantry-type energy-saving tunnel drying equipment according to claim 1 is characterized in that: Several groups of positioning clamping plates (16) for engaging and positioning with the crossbeam (3) are fixedly arranged on the first base plate (10), and positioning clamping slots (1601) are provided on the positioning clamping plates (16).

4. The gantry-type energy-saving tunnel drying equipment according to claim 1 is characterized in that: 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), and a turning drive 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 disassembly and assembly device (700) is mounted on the turning plate (25) through the second base plate (17).

5. The gantry-type energy-saving tunnel drying equipment according to claim 4 is characterized in that: The track plate (24) is provided with a guide rail (2401), and the flip plate (25) is provided with 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).

6. The gantry-type energy-saving tunnel drying equipment according to claim 5 is characterized in that: The outer periphery of the track plate (24) is provided with a gear structure (2402), the flip drive mechanism (26) comprises 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).

7. The gantry-type energy-saving tunnel drying equipment according to claim 1 is characterized in that: The hanging clamp cleaning device (900) comprises a cleaning tank (27) and a fourth lifting drive mechanism (28) for driving the cleaning tank (27) to move back and forth in a vertical direction. An ultrasonic generator (29) is provided in the cleaning tank (27).

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