Post-drying equipment for printed circuit of PET (Polyethylene Terephthalate) substrate

Abstract

The utility model discloses a post-drying device for a PET substrate printed circuit. The post-drying device comprises an electric conveyor belt and a lifting mechanism, a drying box is fixedly connected to the middle of the upper end of the electric conveying belt, and infrared heating pipes which are evenly distributed are fixedly connected to the interior of the drying box; the lifting mechanism comprises lifting cabinets, sliding tables, lifting tables and guide rails, the lifting cabinets are placed on the left side and the right side of the electric conveying belt, the guide rails which are symmetrically distributed left and right are fixedly connected to the inner walls of the front side and the rear side of each lifting cabinet, the sliding tables are slidably connected to the exteriors of the guide rails, and the lifting tables are fixedly connected between the upper ends of the sliding tables located on the same lifting cabinet; positioning frames symmetrically distributed front and back are arranged on the upper surfaces of the lifting tables correspondingly, and transfer boxes are placed on the upper surfaces of the lifting tables correspondingly. According to the drying equipment for the PET substrate printed circuit, through automatic feeding and discharging, the workload is reduced, meanwhile, through an infrared drying mode, energy is saved, and thermal deformation of the substrate is avoided.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board production technology, specifically to a drying device for PET substrates after printing circuits. Background Technology

[0002] PET substrates are lightweight, flexible polymer substrates made from polyethylene terephthalate (PET). They feature high transparency, excellent mechanical strength, chemical resistance, and dimensional stability. They are widely used in flexible displays, thin-film solar cells, flexible circuit boards, and touch panels. Compared to glass substrates, they are 80% thinner (typical thickness 50-250μm), have a bending radius of up to 3mm, and a recyclability rate exceeding 90%, aligning with environmental trends.

[0003] After the PET substrate is printed, it needs to be dried. Usually, the PET substrate is placed in a drying oven for drying. Workers need to put the PET substrate into the drying rack one by one. After drying, the tray containing the PET substrate is taken out from the drying rack again. The workload of workers is large. At the same time, the heating method of the drying oven is electric heating, which cannot penetrate the PET substrate and may cause thermal deformation of the PET substrate. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a drying equipment for PET substrates after printing lines. By automatically loading and unloading materials, the workload is reduced. At the same time, by using infrared drying, energy is saved and the thermal deformation of the substrate is avoided, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drying device for PET substrate printed circuits, comprising an electric conveyor belt and a lifting mechanism;

[0006] A drying box is fixedly connected to the upper middle part of the electric conveyor belt, and infrared heating tubes are fixedly connected inside the drying box in a uniform manner.

[0007] The lifting mechanism includes a lifting cabinet, a sliding table, a lifting platform, and guide rails. Lifting cabinets are placed on both the left and right sides of the electric conveyor belt. Guide rails are symmetrically distributed on both the front and rear inner walls of the lifting cabinets. Sliding tables are slidably connected to the outside of the guide rails. Lifting platforms are fixedly connected between the upper ends of the sliding tables in the same lifting cabinet. Positioning frames are symmetrically distributed on the upper surface of the lifting platform. Transfer boxes are placed on the upper surface of the lifting platform. The lower ends of the transfer boxes are engaged between the two positioning frames in the same lifting platform. Evenly distributed partitions are fixedly connected inside the transfer boxes.

[0008] It also includes a controller, which is located in front of the electric conveyor belt. The input of the controller is electrically connected to an external power source, and the input of the electric conveyor belt is electrically connected to the output of the controller.

[0009] Furthermore, the lifting mechanism also includes a motor, a motor base, gears, and a rack plate. A rack plate is fixedly connected to the middle of the inner rear wall of the lifting cabinet. A motor base is fixedly connected to the rear side of the lower surface of the lifting platform. A motor is fixedly connected to the front side of the motor base. A gear is fixedly sleeved on the rear end of the motor's output shaft. The gears mesh with adjacent rack plates. The input end of the motor is electrically connected to the output end of the controller to realize the lifting of the lifting platform.

[0010] Furthermore, it also includes a feeding mechanism, which includes a base, cylinder one, an electric suction cup, mounting plate one, mounting plate two, and cylinder two. The upper ends of the front and rear side walls of the lifting cabinet are fixedly connected to the base, and cylinder one is fixedly connected to the upper end of each base. The section of the telescopic end of cylinder one near the electric conveyor belt is fixedly connected to mounting plate two. Cylinder two is fixedly connected to the inner ends of the two mounting plates two on the same side. The lower end of the telescopic end of cylinder two is fixedly connected to mounting plate one. Electric suction cups are fixedly connected to the lower surface of mounting plate one. The electric suction cups are all located inside adjacent transfer boxes. The air inlets of cylinder one and cylinder two are connected to an external air pump. The input end of the electric suction cup is electrically connected to the output end of the controller to realize the pulling out and pushing in of the PET substrate.

[0011] Furthermore, the feeding mechanism also includes guide rods. The front and rear sides of the electric conveyor belt are fixedly connected with guide rods that are symmetrically distributed on the left and right sides through fixed seats. The lower end of the second mounting plate is slidably connected to the outside of the vertically adjacent guide rods, so that the movement of the second mounting plate is more stable.

[0012] Furthermore, the front side of the drying oven has two detection ports, and two mounting bases are fixedly connected to the front side of the drying oven. Infrared temperature probes are fixedly connected to the upper end of each mounting base. The infrared temperature probes are positioned corresponding to the front and rear of the detection ports, and are bidirectionally electrically connected to the controller to realize temperature detection in both areas.

[0013] Furthermore, transition plates are fixedly connected to the upper part of both lifting cabinets near the electric conveyor belt. The transition plates are designed to cooperate with the electric conveyor belt to facilitate the transfer of PET substrates.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The lifting platform on the left raises the transfer box, and the lifting platform on the right lowers the transfer box. At the same time, cylinder one, cylinder two and electric suction cup work together to realize automatic feeding and unloading of PET substrate before and after printing and drying, which greatly reduces the workload of drying operation.

[0016] 2. Infrared heating tubes consume less power than electric heating tubes. They can penetrate the PET substrate and act directly on the inside of the PET substrate, resulting in better drying effect and preventing substrate thermal deformation. The infrared heating tube is divided into two areas: the left end is the preheating area and the right end is the drying area. The temperature of the two areas is detected by infrared temperature probes to achieve precise temperature control. The dried PET substrate is separated by a partition on the right side to facilitate air circulation and rapid cooling, resulting in better drying effect. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural schematic diagram of the lifting mechanism of this utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the feeding mechanism of this utility model;

[0020] Figure 4 This is an enlarged cross-sectional view of section A of the present invention.

[0021] In the diagram: 1 Electric conveyor belt, 2 Lifting mechanism, 21 Lifting cabinet, 22 Motor, 23 Slide table, 24 Motor base, 25 Gear, 26 Lifting platform, 27 Guide rail, 28 Rack plate, 3 Feeding mechanism, 31 Base, 32 Cylinder 1, 33 Electric suction cup, 34 Mounting plate 1, 35 Mounting plate 2, 36 Cylinder 2, 37 Guide rod, 4 Drying box, 5 Infrared heating tube, 6 Detection port, 7 Mounting seat, 8 Infrared temperature probe, 9 Controller, 10 Transition plate, 11 Positioning frame, 12 Transfer box, 13 Partition. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This embodiment provides a technical solution: a PET substrate printing circuit post-drying equipment, including an electric conveyor belt 1 and a lifting mechanism 2; it also includes a controller 9, which is disposed in front of the electric conveyor belt 1, the input end of the controller 9 is electrically connected to an external power supply, and the input end of the electric conveyor belt 1 is electrically connected to the output end of the controller 9.

[0024] The upper middle part of the electric conveyor belt 1 is fixedly connected to a drying box 4. The interior of the drying box 4 is fixedly connected to evenly distributed infrared heating tubes 5. Two detection ports 6 are opened on the front side of the drying box 4. Two mounting bases 7 are fixedly connected to the front side of the drying box 4. Infrared temperature probes 8 are fixedly connected to the upper end of each mounting base 7. The infrared temperature probes 8 are all positioned corresponding to the front and rear positions of the detection ports 6. The infrared temperature probes 8 are all bidirectionally electrically connected to the controller 9.

[0025] The lifting mechanism 2 includes a lifting cabinet 21, a sliding table 23, a lifting platform 26, and guide rails 27. Lifting cabinets 21 are placed on both the left and right sides of the electric conveyor belt 1. Guide rails 27, symmetrically distributed on both the front and rear inner walls of the lifting cabinets 21, are fixedly connected. Sliding tables 23 are slidably connected to the outside of each guide rail 27. Lifting platforms 26 are fixedly connected between the upper ends of the sliding tables 23 located within the same lifting cabinet 21. Positioning frames 11, symmetrically distributed front and rear, are provided on the upper surface of each lifting platform 26. Transfer boxes 12 are placed on the upper surface of each lifting platform 26. The lower ends of each transfer box 12 are engaged between two positioning frames 11 located within the same lifting platform 26. The interior of each transfer box 12 is fixedly connected to... The lifting mechanism 2 includes a motor 22, a motor base 24, a gear 25, and a rack plate 28. The rack plate 28 is fixedly connected to the middle of the inner rear wall of the lifting cabinet 21. The motor base 24 is fixedly connected to the rear side of the lower surface of the lifting platform 26. The motor 22 is fixedly connected to the front side of the motor base 24. The rear end of the output shaft of the motor 22 is fixedly fitted with a gear 25. The gear 25 meshes with the adjacent rack plate 28. The input end of the motor 22 is electrically connected to the output end of the controller 9. The upper end of the two lifting cabinets 21 is fixedly connected to the side of the electric conveyor belt 1. The transition plate 10 is configured to cooperate with the conveyor belt of the electric conveyor belt 1.

[0026] The system also includes a feeding mechanism 3, which comprises a base 31, a first cylinder 32, an electric suction cup 33, a first mounting plate 34, a second mounting plate 35, and a second cylinder 36. The upper ends of the front and rear side walls of the lifting cabinet 21 are fixedly connected to the base 31, and the upper ends of the base 31 are fixedly connected to the first cylinder 32. The section of the telescopic end of the first cylinder 32 near the electric conveyor belt 1 is fixedly connected to the second mounting plate 35. The inner ends of the two second mounting plates 35 on the same left and right sides are fixedly connected to the second cylinder 36. The lower ends of the telescopic ends of the second cylinder 36 are fixedly connected to the second cylinder 36. The mounting plate 34 is fixedly connected to the upper surface of the mounting plate 34, and electric suction cups 33 are fixedly connected to the lower surface of the mounting plate 34. The electric suction cups 33 are located inside the adjacent transfer box 12. The air inlets of cylinder 32 and cylinder 36 are connected to the external air pump. The input end of the electric suction cup 33 is electrically connected to the output end of the controller 9. The feeding mechanism 3 also includes guide rods 37. The front and rear sides of the electric conveyor belt 1 are fixedly connected to guide rods 37 that are symmetrically distributed on the left and right sides through fixed seats. The lower end of the mounting plate 35 is slidably connected to the outside of the vertically adjacent guide rods 37.

[0027] The working principle of this utility model is as follows:

[0028] The staff placed the printed PET substrates one by one onto the upper surface of the partition 13 of the transfer box 12. Each PET substrate was placed separately for easy removal and subsequent cooling. Then the transfer box 12 was placed on the upper end of the lifting platform 26 on the left. The lower end of the transfer box 12 was engaged between the two positioning frames 11 located on the same lifting platform 26 to achieve positioning.

[0029] Subsequently, the controller 9 starts all the electrical components of the drying equipment. The telescopic ends of cylinder 2 36 all descend, the suction cup of electric suction cup 33 contacts the vertically adjacent PET substrate and picks up the PET substrate, cylinder 2 36 resets, the telescopic end of cylinder 1 32 extends, the mounting plate 2 35 slides to the right outside the adjacent guide rod 37, the electric suction cup 33 moves synchronously, and the PET substrate is pulled out to the upper surface of the electric conveyor belt 1, the transition plate 10, to avoid excessive gaps between the partition 13 and the electric conveyor belt 1, which facilitates the transfer of the PET substrate.

[0030] Subsequently, the electric conveyor belt 1 drives the PET substrate to the right, and the infrared heating tube 5 dries and heats the PET substrate. The infrared heating tube 5 consumes less power than the electric heating tube, and can penetrate the PET substrate to act directly on the inside of the PET substrate, resulting in a better drying effect. The infrared heating tube 5 is divided into two areas: the left end is the preheating area and the right end is the drying area. Two infrared temperature probes 8 are obliquely aligned with the inside of the drying chamber 4 to realize temperature detection in the two areas and precise temperature control.

[0031] After the PET substrate is dried, it is brought to the lower end of the electric suction cup 33 on the right. The electric conveyor belt 1 temporarily stops, the cylinder 2 36 on the right descends, and the electric suction cup 33 on the right contacts and picks up the dried PET substrate. Then the telescopic end of the cylinder 1 32 retracts, pushing the similarly dried PET substrate onto the partition 13 on the right. The running speed of the electric conveyor belt 1 is constant, so each PET substrate moves at the same speed, and the time error of reaching the same position on the conveyor belt is very small, which facilitates the gripping of PET substrates. The output shaft of the motor 22 rotates, driving the gear 25 to rotate. The gear 25 rotates on the meshing rack plate 28, driving the lifting platform 26 to slide up and down between the guide rails 27. Whenever a PET substrate is pulled out from the partition 13 on the left, the lifting platform 26 on the left rises. Whenever a PET substrate is pushed into the partition 13 on the right, the lifting platform 26 on the right descends, realizing the automatic loading and unloading of PET substrates.

[0032] It is worth noting that the controller 9 disclosed in the above embodiments can be a 02DA-E2 general-purpose controller, the motor 22 can be a 130TM-19015C5-C servo motor, the electric suction cup 33 can be an S70Z-N1 miniature electric vacuum suction cup, the infrared temperature probe 8 can be an OPTCTLT15 infrared temperature probe, and the infrared heating tube 5 can be a YH-95223 infrared heating tube. The controller 9 controls the operation of the motor 22, the electric suction cup 33, the infrared temperature probe 8, the infrared heating tube 5, the electric conveyor belt 1, and the external air pump using methods commonly used in the prior art.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A drying device for PET substrates after printing circuitry, characterized in that: Includes an electric conveyor belt (1) and a lifting mechanism (2); A drying box (4) is fixedly connected to the middle of the upper end of the electric conveyor belt (1), and infrared heating tubes (5) are fixedly connected inside the drying box (4) in a uniform manner. The lifting mechanism (2) includes a lifting cabinet (21), a slide (23), a lifting platform (26), and a guide rail (27). Lifting cabinets (21) are placed on both the left and right sides of the electric conveyor belt (1). Guide rails (27) are symmetrically distributed on the front and rear inner walls of the lifting cabinets (21). Slides (23) are slidably connected to the outside of the guide rails (27). Lifting platforms (26) are fixedly connected between the upper ends of the slides (23) in the same lifting cabinet (21). Positioning frames (11) are symmetrically distributed on the upper surface of the lifting platform (26). Transfer boxes (12) are placed on the upper surface of the lifting platform (26). The lower ends of the transfer boxes (12) are snapped between the two positioning frames (11) in the same lifting platform (26). Evenly distributed partitions (13) are fixedly connected inside the transfer boxes (12). It also includes a controller (9), which is located on the front side of the electric conveyor belt (1). The input end of the controller (9) is electrically connected to an external power source, and the input end of the electric conveyor belt (1) is electrically connected to the output end of the controller (9).

2. The drying equipment for PET substrates after printing circuitry according to claim 1, characterized in that: The lifting mechanism (2) also includes a motor (22), a motor base (24), a gear (25) and a rack plate (28). The rack plate (28) is fixedly connected to the middle of the inner wall of the rear side of the lifting cabinet (21). The motor base (24) is fixedly connected to the rear side of the lower surface of the lifting platform (26). The motor (22) is fixedly connected to the front side of the motor base (24). The rear end of the output shaft of the motor (22) is fixedly fitted with a gear (25). The gear (25) meshes with the adjacent rack plate (28). The input end of the motor (22) is electrically connected to the output end of the controller (9).

3. The drying equipment for PET substrates after printing circuitry according to claim 1, characterized in that: It also includes a feeding mechanism (3), which includes a base (31), a cylinder (32), an electric suction cup (33), a mounting plate (34), a mounting plate (35), and a cylinder (36). The upper ends of the front and rear side walls of the lifting cabinet (21) are fixedly connected to the base (31), and the upper ends of the base (31) are fixedly connected to the cylinder (32). The telescopic end of the cylinder (32) near the electric conveyor belt (1) is fixedly connected to the mounting plate (35). The left and right sides are the same. Two mounting plates (35) on the side are fixedly connected to the inner ends of the two mounting plates (36) respectively. The lower ends of the telescopic ends of the two mounting plates (36) are fixedly connected to the mounting plates (34). The lower surfaces of the mounting plates (34) are fixedly connected to the electric suction cups (33). The electric suction cups (33) are located inside the adjacent transfer boxes (12). The air inlets of the cylinders (32) and (36) are connected to the external air pump. The input end of the electric suction cups (33) is electrically connected to the output end of the controller (9).

4. The drying equipment for PET substrates after printing circuitry according to claim 3, characterized in that: The feeding mechanism (3) also includes guide rods (37). The front and rear sides of the electric conveyor belt (1) are fixedly connected with guide rods (37) that are symmetrically distributed on the left and right sides through fixed seats. The lower end of the mounting plate (35) is slidably connected to the outside of the vertically adjacent guide rods (37).

5. The drying equipment for PET substrates after printing circuitry according to claim 1, characterized in that: The front side of the drying oven (4) has two detection ports (6) and two mounting bases (7) are fixedly connected to the front side of the drying oven (4). Infrared temperature probes (8) are fixedly connected to the upper end of each mounting base (7). The infrared temperature probes (8) are all positioned in front and behind the detection ports (6) and are bidirectionally electrically connected to the controller (9).

6. The drying equipment for PET substrates after printing circuitry according to claim 1, characterized in that: Both lifting cabinets (21) have a transition plate (10) fixedly connected to the side of the upper end near the electric conveyor belt (1), and the transition plate (10) is set in conjunction with the conveyor belt of the electric conveyor belt (1).

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