Automatic continuous drying equipment for flexible circuit board

Through the design of arc ducts and deformation-resistant tensioning modules, the problem of substrate deformation in flexible circuit board drying equipment is solved, and the effective molding and cost reduction of substrate are achieved.

CN120333109APending Publication Date: 2025-07-18INJECTION PRECISION RUBBER SUZHOU CO LTD
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Patent Information

Application Number
CN202510717807.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-30
Publication Date
2025-07-18

AI Technical Summary

Technical Problem

The existing flexible circuit board drying equipment lacks effective substrate deformation prevention measures, which leads to curling folds or damage in the substrate during drying, affecting production efficiency and cost.

Method used

The arc-shaped duct design is adopted, combining support plates, rotating rods, pallets and anti-deformation tensioning modules, and the substrate plate is subject to temperature stress and the automatic feeding module is used to achieve continuous drying.

Benefits of technology

Effectively prevent the substrate from deforming during the drying process, ensure the complete forming of the circuit board, reduce production costs, and improve drying efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of circuit board processing, particularly relates to automatic continuous drying equipment for a flexible circuit board, and aims to solve the technical problem that the existing drying equipment for the flexible circuit board lacks an effective anti-deformation measure, the automatic continuous drying equipment for the flexible circuit board comprises an arc-shaped duct, and two symmetrical supporting plates are fixedly connected to the outer part of the arc-shaped duct; the two supporting plates are movably connected with the same rotating rod, the rotating rod is fixedly connected with a circular ring, and the outer portion of the circular ring is fixedly connected with a plurality of long rods which are circumferentially distributed at equal intervals; and a plurality of trays. According to the automatic continuous drying equipment for the flexible circuit board, the substrate plate can be tensioned to a certain degree when the substrate plate is dried, so that the substrate plate can resist temperature stress generated in the drying process, deformation of the substrate plate in the drying process is avoided, effective forming of the circuit board is ensured, and the quality of the circuit board is improved. The circuit board is prevented from being damaged, and the cost is reduced.
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Description

Technical Field

[0001] The present invention relates to the technical field of printed circuit board processing, and particularly to an automatic continuous drying device for flexible printed circuit boards. Background Art

[0002] In the production of flexible printed circuit boards, steps such as material preparation and substrate treatment, pattern transfer and etching, lamination and reinforcement process, drilling and conduction treatment, surface treatment and forming, inspection and verification, etc. are required. Among them, in order to eliminate internal stress and remove free moisture to prevent deformation during subsequent processing, it is necessary to dry and dehumidify the substrate in the substrate treatment step.

[0003] During the drying process of the existing flexible printed circuit board drying equipment for the substrate, there are no effective substrate anti-deformation measures, which leads to the gradual accumulation of internal temperature stress in the substrate affected by heat during the drying process, resulting in curling, wrinkling or even damage of the soft substrate itself during the drying process, greatly affecting the production of flexible printed circuit boards and increasing production costs. Summary of the Invention

[0004] The present invention discloses an automatic continuous drying device for flexible printed circuit boards, aiming to solve the technical problem that the existing flexible printed circuit board drying equipment in the background art lacks effective anti-deformation measures.

[0005] An automatic continuous drying device for flexible printed circuit boards proposed by the present invention includes: An arc-shaped duct, two symmetrical support plates are fixedly connected to the outside of the arc-shaped duct, the same rotating rod is movably connected to the two support plates, and a ring is fixedly connected to the rotating rod, and a plurality of long rods are fixedly connected to the outside of the ring and are evenly distributed at equal intervals in the circumferential direction; A plurality of trays, the outsides of the plurality of trays are respectively fixedly connected to one ends of the plurality of long rods, substrate plates are arranged on the trays, and a cutting groove is opened on the arc-shaped duct, and the outsides of the long rods are all slidably connected to the inner wall of the cutting groove; A bearing platform, located outside the arc-shaped duct, a plurality of substrate plates are located on the bearing platform, and fiber gaskets are arranged between the plurality of substrate plates; A plurality of anti-deformation tensioning modules, the plurality of anti-deformation tensioning modules are respectively located outside the plurality of trays, and the anti-deformation tensioning module is used to tension the substrate plate when the device dries the substrate plate; An automatic feeding module, the automatic feeding module is located on the bearing platform and is used to automatically and continuously convey the substrate plate to the tray during the use of the device.

[0006] In a preferred solution, the anti-deformation tensioning module includes: Two mounting frames, the two mounting frames are symmetrical to each other. There are two symmetrical rectangular openings on the arc-shaped duct, and the inner walls of the rectangular openings are fixedly connected to the outside of the mounting frame on the same side; rectangular plates are fixedly connected to the inner walls of the mounting frames, and two symmetrical fans are arranged in each rectangular plate. Two heating wires, the two heating wires are respectively arranged in the two mounting frames. A base is fixedly connected to the outside of the arc-shaped duct, and a plurality of symmetrical observation windows are opened on the outside of the arc-shaped duct. Motor 1, the outside of the motor 1 is fixedly connected to the outside of one of the support plates, and the output end of the motor 1 is fixedly connected to one side of the rotating rod.

[0007] In a preferred embodiment, the anti-deformation tensioning module further includes: A plurality of U-shaped frames, the inner walls of the plurality of U-shaped frames are respectively fixedly connected to the outside of the plurality of trays. A plurality of equally spaced thin openings are opened on the U-shaped frames, and short rods are slidably connected in the thin openings. The upper sides of the plurality of short rods are fixedly connected to the same series plate, and the lower ends are fixedly connected to the same pressing plate 1, and rubber pads are fixedly connected to the bottoms of the pressing plate 1, and the bottoms of the rubber pads are respectively attached to the upper sides of the substrate plates on the same side. A plurality of hydraulic rods 1, circular holes are opened on the plurality of U-shaped frames, and the inner walls of the circular holes are respectively fixedly connected to the outside of the hydraulic rods 1 on the same side, and the output ends of the hydraulic rods 1 are respectively fixedly connected to the bottoms of the series plates on the same side.

[0008] In a preferred embodiment, the anti-deformation tensioning module further includes: A plurality of C-shaped frames, the plurality of C-shaped frames are all located outside the trays on the same side. Two symmetrical circular holes are opened on the upper sides of the C-shaped frames, and hydraulic rods 2 are fixedly connected in the circular holes. The output ends of the two hydraulic rods 2 on the same side are fixedly connected to the same pressing plate 2, and the bottoms of the pressing plate 2 are respectively attached to the upper sides of the substrate plates on the same side. A plurality of slide rails, the upper sides of the plurality of slide rails are respectively fixedly connected to the bottoms of the trays on the same side. Movable plates are slidably connected in the slide rails. Narrow grooves are opened at the bottoms of the movable plates, and motors 2 are fixedly connected to the inner walls of the narrow grooves. The output ends of the motors 2 are connected to lead screws through couplings, and the ends of the lead screws away from the motors 2 are respectively movably connected to the inner walls of the narrow grooves on the same side.

[0009] In a preferred embodiment, the anti-deformation tensioning module further includes: A plurality of Z-shaped parts, one ends of the plurality of Z-shaped parts are respectively movably connected to the bottoms of the C-shaped frames on the same side. Slot holes are opened on the outside of the Z-shaped parts, and bosses are movably connected to the inner walls of the slot holes. The outsides of the bosses are respectively fixedly connected to the bottoms of the movable plates on the same side, and push rods are respectively movably connected to the ends of the Z-shaped parts away from the C-shaped frames. A plurality of moving parts, moving parts are respectively movably connected to the ends of the push rods away from the Z-shaped parts, and the moving parts are all arranged on the lead screws on the same side.

[0010] In a preferred embodiment, the anti-deformation tensioning module further includes: A plurality of conventional magnets, each of the plurality of conventional magnets is fixedly connected to the side opposite to the movable plate on the same side, electromagnets are fixedly connected to the inner walls of the slide rails, and two symmetric cut grooves are formed in the outer parts of the slide rails; A plurality of follower plates, the inner walls of the plurality of cut grooves are slidably connected to the outer parts of the follower plates, springs are fixedly connected to the outer parts of the follower plates, one ends of the springs far from the follower plates are fixedly connected to the outer parts of the slide rails on the same side, and the follower plates are fixedly connected to the sides opposite to the movable plates on the same side.

[0011] In a preferred embodiment, the automatic feeding module includes: A receiving bin, the receiving bin is formed on the platform, a groove is formed in the outer part of the platform, a motor three is fixedly connected in the groove, the output end of the motor three is connected to a threaded rod through a coupling, a support plate is arranged on the outer part of the threaded rod, and the outer part of the support plate is slidably connected to the inner wall of the receiving bin; A box door, a rectangular hole is formed in the inner wall of the receiving bin, and a box door is rotatably connected to the inner wall of the rectangular hole through a hinge.

[0012] In a preferred embodiment, the automatic feeding module further includes: Two vertical plates, the bottoms of the two vertical plates are fixedly connected to the upper side of the platform, two symmetric circular holes are formed in each of the vertical plates, the same thin rod one is movably connected in the two circular holes on the same side, rollers one are fixedly connected to the outer parts of the two thin rod ones, and transmission rollers one are fixedly connected to the outer parts of the two thin rod ones, and the same belt one is arranged on the outer parts of the two transmission rollers one; A driving motor one, the driving motor one is fixedly connected to the outer part of one of the vertical plates, and the output end of the driving motor one is connected to one side of the thin rod one on the same side through a coupling.

[0013] In a preferred embodiment, three equally spaced circular openings are formed in the two vertical plates, the same thin rod two is movably connected to the inner walls of the two circular openings on the same side, three equally spaced rollers two are fixedly connected to the outer parts of the two thin rod two close to the thin rod one, and a driving motor two is fixedly connected to the outer part of one of the vertical plates, and the output end of the driving motor two is connected to one side of the thin rod two on the same side through a coupling.

[0014] In a preferred embodiment, transmission rollers two are fixedly connected to the outer parts of the two thin rod two far from the driving motor two among the three thin rod two, the same belt two is arranged on the outer parts of the three transmission rollers two, and two symmetric tensioning rods are arranged on the outer part of the belt two, and the tensioning rods are fixedly connected to the sides opposite to the vertical plates on the same side.

[0015] As can be seen from the above, a flexible circuit board automatic continuous drying device provided by the present invention can apply a certain tension to the base material board when the device dries the base material board, so that the base material board can resist the temperature stress generated during the drying process, avoid deformation of the base material board during the drying process, ensure the effective forming of the circuit board, prevent damage to the circuit board, and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic diagram of the overall structure of a flexible circuit board automatic continuous drying device proposed by the present invention; Figure 2 FIG. is a schematic cross-sectional structure diagram of a flexible circuit board automatic continuous drying device proposed by the present invention; Figure 3 FIG. is a schematic diagram of the arc-shaped duct structure of a flexible circuit board automatic continuous drying device proposed by the present invention; Figure 4 FIG. is a schematic diagram of the U-shaped frame structure of a flexible circuit board automatic continuous drying device proposed by the present invention; Figure 5 FIG. is a schematic diagram of the slide rail structure of a flexible circuit board automatic continuous drying device proposed by the present invention; Figure 6 FIG. is a schematic diagram of the automatic feeding module structure of a flexible circuit board automatic continuous drying device proposed by the present invention; Figure 7 FIG. is a schematic diagram of the vertical plate structure of a flexible circuit board automatic continuous drying device proposed by the present invention.

[0017] In the figure: 1, arc-shaped duct; 2, base; 3, observation window; 4, support plate; 5, rotating rod; 6, long rod; 7, tray; 8, anti-deformation tensioning module; 801, installation frame; 802, heating wire; 803, fan; 804, motor 1; 805, U-shaped frame; 806, short rod; 807, pressing plate 1; 808, rubber pad; 809, hydraulic rod 1; 810, series plate; 811, C-shaped frame; 812, hydraulic rod 2; 813, pressing plate 2; 814, slide rail; 815, movable plate; 816, conventional magnet; 817, electromagnet; 818, cut groove; 819, follower plate; 820, spring; 821, motor 2; 822, lead screw; 823, moving part; 824, push-pull rod; 825, Z-shaped part; 9, automatic feeding module; 901, accommodation bin; 902, box door; 903, motor 3; 904, threaded rod; 905, support plate; 906, vertical plate; 907, thin rod 1; 908, roller 1; 909, driving roller 1; 910, belt 1; 911, driving motor 1; 912, thin rod 2; 913, roller 2; 914, driving roller 2; 915, belt 2; 916, tensioning rod; 917, driving motor 2; 10, base plate; 11, fiber gasket; 12, bearing platform. Detailed implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] A flexible circuit board automatic continuous drying device disclosed by the present invention is mainly applied to the scenario where the existing flexible circuit board drying device lacks effective anti-deformation measures.

[0020] Refer to Figures 1-7 , a flexible circuit board automatic continuous drying device, including: Arc-shaped duct 1, two symmetrical support plates 4 are connected to the outside of the arc-shaped duct 1 by bolts, the same rotating rod 5 is rotatably connected to the two support plates 4 through bearings, and a ring is connected to the rotating rod 5 by bolts. A plurality of long rods 6 evenly distributed at equal circumferences are connected to the outside of the ring by bolts; A plurality of trays 7, one ends of the plurality of trays 7 are respectively connected to one ends of the plurality of long rods 6 by bolts. Substrate plates 10 are arranged on the trays 7, and cut grooves are formed in the arc-shaped duct 1. The outside of the long rods 6 is slidably connected to the inner wall of the cut grooves; Bearing platform 12, located outside the arc-shaped duct 1, a plurality of substrate plates 10 are located on the bearing platform 12, and fiber gaskets 11 are arranged between the plurality of substrate plates 10; Multiple anti-deformation tensioning modules 8 are respectively located outside multiple pallets 7, and the anti-deformation tensioning module 8 is used to tension the base plate 10 when the device dries the base plate 10; An automatic feeding module 9 is located on the bearing platform 12 and is used to automatically and continuously convey the base plate 10 onto the pallet 7 during the use of the device.

[0021] When the device dries the base plate 10, the device can use the anti-deformation tensioning module 8 to perform a certain tension on the base plate 10, so that the base plate 10 can resist the temperature stress generated during the drying process, avoiding deformation of the base plate 10 during the drying process, ensuring the effective forming of the circuit board, preventing damage to the circuit board, and reducing costs.

[0022] Refer to Figure 3 、 Figure 4 and Figure 5 In a preferred embodiment, the anti-deformation tensioning module 8 includes: Two mounting frames 801, the two mounting frames 801 are symmetrical to each other. Two symmetrical rectangular openings are provided on the arc-shaped culvert 1, and the inner wall of the rectangular opening is connected to the outside of the mounting frame 801 on the same side by bolts; rectangular plates are connected to the inner walls of the mounting frames 801 by bolts, and two symmetrical fans 803 are arranged in each rectangular plate; Two heating wires 802 are respectively arranged in the two mounting frames 801. A base 2 is connected to the outside of the arc-shaped culvert 1 by bolts, and a plurality of symmetrical observation windows 3 are provided on the outside of the arc-shaped culvert 1; A first motor 804, the outside of the first motor 804 is connected to the outside of one of the support plates 4 by bolts, and the output end of the first motor 804 is connected to one side of the rotating rod 5 by bolts.

[0023] In the present invention, the anti-deformation tensioning module 8 further includes: A plurality of U-shaped frames 805, the inner walls of the plurality of U-shaped frames 805 are respectively connected to the outside of the plurality of pallets 7 by bolts. A plurality of equally spaced thin openings are provided on the U-shaped frames 805, and short rods 806 are slidably connected in the thin openings. The upper sides of the plurality of short rods 806 are connected to the same series plate 810 by bolts, and the lower ends are connected to the same pressing plate 807 by bolts. And rubber pads 808 are connected to the bottoms of the pressing plates 807 by bolts, and the bottoms of the rubber pads 808 are attached to the upper sides of the base plates 10 on the same side; A plurality of first hydraulic rods 809, circular holes are provided on the plurality of U-shaped frames 805, and the inner walls of the circular holes are respectively connected to the outside of the first hydraulic rods 809 on the same side by bolts, and the output ends of the first hydraulic rods 809 are respectively connected to the bottoms of the series plates 810 on the same side by bolts.

[0024] In the present invention, the anti-deformation tensioning module 8 further includes: A plurality of C-shaped frames 811, all of the plurality of C-shaped frames 811 are located outside the trays 7 on the same side. Two symmetric round holes are provided on the upper sides of the C-shaped frames 811. Hydraulic rods II 812 are connected by bolts in the round holes. The output ends of the two hydraulic rods II 812 on the same side are connected by bolts to the same pressing plate II 813. The bottoms of the pressing plate II 813 are all in contact with the upper sides of the substrate plates 10 on the same side; A plurality of slide rails 814, the upper sides of all of the plurality of slide rails 814 are connected to the bottoms of the trays 7 on the same side by bolts. Movable plates 815 are slidably connected in the slide rails 814. Narrow grooves are provided at the bottoms of the movable plates 815. Electric motors II 821 are connected by bolts to the inner walls of the narrow grooves. The output ends of the electric motors II 821 are connected by couplings to lead screws 822. The ends of the lead screws 822 away from the electric motors II 821 are rotatably connected to the inner walls of the narrow grooves on the same side through bearings.

[0025] In the present invention, the anti-deformation tensioning module 8 further includes: A plurality of Z-shaped members 825, one ends of all of the plurality of Z-shaped members 825 are rotatably connected to the bottoms of the C-shaped frames 811 on the same side through bearings. Slot holes are provided on the exteriors of the Z-shaped members 825. Protrusions are rotatably connected to the inner walls of the slot holes through bearings. The exteriors of the protrusions are all connected to the bottoms of the movable plates 815 on the same side by bolts. And the ends of the Z-shaped members 825 away from the C-shaped frames 811 are all rotatably connected to push rods 824 through bearings; A plurality of moving members 823, one ends of all of the push rods 824 away from the Z-shaped members 825 are rotatably connected to moving members 823 through bearings. The moving members 823 are all arranged on the lead screws 822 on the same side.

[0026] In the present invention, the anti-deformation tensioning module 8 further includes: A plurality of conventional magnets 816, the sides of the plurality of conventional magnets 816 opposite to the movable plates 815 on the same side are all connected by bolts. Electromagnets 817 are connected by bolts to the inner walls of the slide rails 814. And two symmetric cut grooves 818 are provided on the exteriors of the slide rails 814; A plurality of follower plates 819, the exteriors of the follower plates 819 are all slidably connected to the inner walls of the cut grooves 818. Springs 820 are connected by bolts to the exteriors of the follower plates 819. The ends of the springs 820 away from the follower plates 819 are all connected by bolts to the exteriors of the slide rails 814 on the same side. The sides of the follower plates 819 opposite to the movable plates 815 on the same side are all connected by bolts.

[0027] In a specific application scenario, the anti-deformation tensioning module 8 is mainly applicable to the anti-deformation tensioning link during the anti-deformation tensioning process. That is, the anti-deformation tensioning module 8 can quickly and conveniently provide effective tension for the substrate plate 10 when the substrate plate 10 is dried by using the U-shaped frame 805 and the C-shaped frame 811. While helping to resist deformation, it can also control the magnitude of the tension, avoid breaking the substrate plate 10, and ensure the integrity of the substrate plate 10. By using the arc-shaped duct 1, the heating wire 802, and the fan 803, a temperature gradient can be formed in the arc-shaped duct 1, thereby controlling the heating rate of the substrate plate 10 and reducing the generation of thermal stress. By using the rotating rod 5, the long rod 6, the tray 7, and the first motor 804, the device can automatically and continuously supply the substrate plate 10 to the tray 7, thereby ensuring the continuous progress of the drying process and improving the drying efficiency.

[0028] Referring to Figure 6 and Figure 7 , in a preferred embodiment, the automatic feeding module 9 includes: A receiving bin 901 is opened on the bearing platform 12. A groove is opened outside the bearing platform 12, and a third motor 903 is connected in the groove by bolts. The output end of the third motor 903 is connected to a threaded rod 904 through a coupling. A support plate 905 is arranged outside the threaded rod 904, and the outside of the support plate 905 is slidably connected to the inner wall of the receiving bin 901; A box door 902. A rectangular hole is opened on the inner wall of the receiving bin 901, and the inner wall of the rectangular hole is rotatably connected to the box door 902 through a hinge.

[0029] In the present invention, the automatic feeding module 9 further includes: Two vertical plates 906. The bottoms of the two vertical plates 906 are connected to the upper side of the bearing platform 12 by bolts. Two symmetric circular holes are opened on each of the vertical plates 906. The same thin rod 907 is rotatably connected in the two circular holes on the same side through bearings. The outside of each of the two thin rods 907 is connected to a first roller 908 by bolts, and the outside of each of the two thin rods 907 is also connected to a first transmission roller 909 by bolts. A first belt 910 is arranged outside the two first transmission rollers 909; A driving motor 911. A driving motor 911 is connected to the outside of one of the vertical plates 906 by bolts, and the output end of the driving motor 911 is connected to one side of the thin rod 907 on the same side through a coupling.

[0030] In the present invention, three circular openings are provided on two vertical plates 906 at equidistant intervals. The inner walls of two circular openings on the same side are rotatably connected to the same second thin rod 912 through bearings. Three rollers 913 are equidistantly distributed and bolted to the outside of the two second thin rods 912 close to the first thin rod 907. A second driving motor 917 is bolted to the outside of one of the vertical plates 906, and the output end of the second driving motor 917 is connected to one side of the second thin rod 912 on the same side through a coupling.

[0031] In the present invention, two of the three second thin rods 912 that are far from the second driving motor 917 have a second transmission roller 914 bolted to their outside. A second belt 915 is provided on the outside of the three second transmission rollers 914. Two symmetrical tensioning rods 916 are provided on the outside of the second belt 915, and the tensioning rods 916 are bolted to the side opposite to the same-side vertical plate 906.

[0032] In a specific application scenario, the automatic feeding module 9 is mainly applicable to the automatic feeding link in the automatic feeding process. That is, the automatic feeding module 9 enables personnel to quickly and conveniently complete the feeding operation of the base material plate 10 by using the pallet 905 and the pallet 905. The fiber gaskets 11 sandwiched between the base material plates 10 can effectively and evenly transfer the pressure between the stacked base material plates 10, thereby avoiding damage to the base material plates 10 caused by pressure concentration. The device can evenly convey the base material plates 10 to the tray 7 by using the first roller 908 and the second roller 913, and ensure that the soft base material plates 10 will not curl or fold during movement.

[0033] Working principle: Open the box door 902, place the substrate board 10 to be dried and the fiber gasket 11 sandwiched between the substrate boards 10 on the pallet 905 on the receiving bin 901, close the box door 902, start the third motor 903, and the third motor 903 drives the threaded rod 904 to push the pallet 905 upward, so that the pallet 905 pushes the uppermost substrate board 10 and the fiber gasket 11 towards the second roller 913. Start the second driving motor 917, and through the linkage of the second belt 915, the second roller 913 pushes the substrate board 10 towards the first roller 908. Start the first driving motor 911, and the first driving motor 911 drives the first roller 908 to rotate, pushing the substrate board 10 onto the tray 7. Start the second driving motor 917 again, making the second driving motor 917 rotate in the reverse direction, so that the second roller 913 pushes the fiber gasket 11 under the substrate board 10 outside the bearing platform 12. Continue to operate according to the above steps until all the substrate boards 10 are conveyed. After the substrate board 10 lands on the tray 7, start the first hydraulic rod 809, and the first hydraulic rod 809 drives the series plate 810 and the short rod 806 to press down the first pressing plate 807, so that the rubber pad 808 tightly presses one side of the substrate board 10 on the tray 7. Start the second motor 821, and the second motor 821 drives the moving part 823 on the lead screw 822 to move in the direction away from the second motor 821, so that the push-pull rod 824 pushes the C-shaped frame 811 to rotate from the bottom of the tray 7 to the edge of the substrate board 10. Start the second hydraulic rod 812 to make the second pressing plate 813 tightly press on the substrate board 10. Start the first motor 804, and the first motor 804 drives the tray 7 connected to the long rod 6 to rotate around the rotating rod 5 as the axis, so that the tray 7 drives the substrate board 10 into the arc-shaped duct 1. Start the heating wire 802 and the fan 803, and the fan 803 sucks air into the arc-shaped duct 1 and flows along the inner wall of the arc-shaped duct 1 upward to the upper outlet of the arc-shaped duct 1 after being heated by the heating wire 802, forming a scene where the temperature gradually increases from top to bottom in the arc-shaped duct 1. As the tray 7 moves in the arc-shaped duct 1, start the electromagnet 817, and the electromagnet 817 forms the same magnetic field as the conventional magnet 816, thus repelling and overcoming the pulling force of the spring 820 to push the movable plate 815 to move on the slide rail 814, so that the C-shaped frame 811 tenses the substrate board 10 on the tray 7. After the tray 7 comes out of the arc-shaped duct 1, take the dried substrate board 10 off the tray 7.

[0034] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An automatic continuous drying device for flexible printed circuit boards, characterized in that, Including: An arc-shaped duct, two symmetrical support plates are fixedly connected to the outside of the arc-shaped duct, the same rotating rod is movably connected to the two support plates, and a ring is fixedly connected to the rotating rod, and a plurality of long rods are fixedly connected to the outside of the ring and are equally distributed circumferentially; A plurality of trays, the outsides of the plurality of trays are respectively fixedly connected to one ends of the plurality of long rods, a base material plate is arranged on each tray, a cutting groove is formed in the arc-shaped duct, and the outside of each long rod is slidably connected to the inner wall of the cutting groove; A bearing platform, located outside the arc-shaped duct, a plurality of base material plates are located on the bearing platform, and fiber gaskets are arranged between the plurality of base material plates; A plurality of anti-deformation tensioning modules, the plurality of anti-deformation tensioning modules are respectively located outside the plurality of trays, and the anti-deformation tensioning module is used to tension the base material plate when the device dries the base material plate; An automatic feeding module, the automatic feeding module is located on the bearing platform and is used to automatically and continuously convey the base material plate to the tray during the use of the device.

2. The automatic continuous drying device for flexible printed circuit boards according to claim 1, characterized in that The anti-deformation tensioning module includes: Two mounting frames, the two mounting frames are symmetrical to each other, two symmetrical rectangular openings are formed in the arc-shaped duct, and the inner wall of the rectangular opening is fixedly connected to the outside of the mounting frame on the same side; rectangular plates are fixedly connected to the inner walls of the mounting frames, and two symmetrical fans are arranged in each rectangular plate; Two heating wires, the two heating wires are respectively arranged in the two mounting frames, a base is fixedly connected to the outside of the arc-shaped duct, and a plurality of symmetrical observation windows are formed in the outside of the arc-shaped duct; A motor one, the outside of the motor one is fixedly connected to the outside of one of the support plates, and the output end of the motor one is fixedly connected to one side of the rotating rod.

3. The automatic continuous drying equipment for flexible printed circuit boards according to claim 1, characterized in that, The anti-deformation tensioning module further includes: A plurality of U-shaped frames, the inner walls of the plurality of U-shaped frames are respectively fixedly connected to the outsides of the plurality of trays, a plurality of equally distributed narrow openings are formed in the U-shaped frames, short rods are slidably connected in the narrow openings, the upper sides of the plurality of short rods are fixedly connected to the same series plate, the lower ends are fixedly connected to the same pressing plate one, and rubber pads are fixedly connected to the bottoms of the pressing plate one, and the bottoms of the rubber pads are respectively attached to the upper sides of the base material plates on the same side; A plurality of hydraulic rods one, circular holes are formed in the plurality of U-shaped frames, the inner walls of the circular holes are respectively fixedly connected to the outsides of the hydraulic rods one on the same side, and the output ends of the hydraulic rods one are respectively fixedly connected to the bottoms of the series plates on the same side.

4. The automatic continuous drying device for a flexible printed circuit board according to claim 3, wherein, The anti-deformation tensioning module further includes: A plurality of C-shaped frames, the plurality of C-shaped frames are all located outside the trays on the same side, two symmetrical circular holes are formed in the upper sides of the C-shaped frames, hydraulic rods two are fixedly connected in the circular holes, the output ends of the two hydraulic rods two on the same side are fixedly connected to the same pressing plate two, and the bottoms of the pressing plate two are respectively attached to the upper sides of the base material plates on the same side; A plurality of slide rails, the upper sides of the plurality of slide rails are respectively fixedly connected to the bottoms of the trays on the same side, movable plates are slidably connected in the slide rails, narrow grooves are formed in the bottoms of the movable plates, motors two are fixedly connected to the inner walls of the narrow grooves, the output ends of the motors two are connected to lead screws through couplings, and the ends of the lead screws away from the motors two are movably connected to the inner walls of the narrow grooves on the same side.

5. The automatic continuous drying device for a flexible printed circuit board according to claim 4, characterized in that, The anti-deformation tensioning module further includes: Multiple Z-shaped parts, one end of each of the multiple Z-shaped parts is movably connected to the bottom of the C-shaped frame on the same side. Slots are provided on the outer part of the Z-shaped parts, and bosses are movably connected to the inner walls of the slots. The outer parts of the bosses are fixedly connected to the bottoms of the movable plates on the same side, and push-pull rods are movably connected to the ends of the Z-shaped parts far from the C-shaped frame. Multiple moving parts, one end of each of the push-pull rods far from the Z-shaped parts is movably connected to a moving part, and the moving parts are all arranged on the lead screws on the same side.

6. The automatic continuous drying device for a flexible circuit board according to claim 4, characterized in that, The anti-deformation tensioning module further includes: Multiple conventional magnets, the multiple conventional magnets are fixedly connected to the sides opposite to the movable plates on the same side. Electromagnets are fixedly connected to the inner walls of the slide rails, and two symmetrical cut grooves are provided on the outer parts of the slide rails. Multiple follower plates, the inner walls of the cut grooves are slidably connected to the outer parts of the follower plates. Springs are fixedly connected to the outer parts of the follower plates, and the ends of the springs far from the follower plates are fixedly connected to the outer parts of the slide rails on the same side. The sides of the follower plates opposite to the movable plates on the same side are fixedly connected.

7. The automatic continuous drying device for flexible printed circuit boards according to claim 1, characterized in that, The automatic feeding module includes: A storage bin, the storage bin is provided on the bearing platform. A groove is provided on the outer part of the bearing platform, and a motor three is fixedly connected in the groove. The output end of the motor three is connected to a threaded rod through a coupling. A support plate is arranged on the outer part of the threaded rod, and the outer part of the support plate is slidably connected to the inner wall of the storage bin. A box door, a rectangular hole is provided on the inner wall of the storage bin, and a box door is rotatably connected to the inner wall of the rectangular hole through a hinge.

8. An automatic continuous drying device for a flexible circuit board according to claim 7, characterized in that, The automatic feeding module further includes: Two vertical plates, the bottoms of the two vertical plates are fixedly connected to the upper side of the bearing platform. Two symmetrical circular holes are provided on each of the vertical plates. The same thin rod one is movably connected in the two circular holes on the same side. Two rollers one are fixedly connected to the outer parts of the two thin rod ones, and two transmission rollers one are fixedly connected to the outer parts of the two thin rod ones. The same belt one is arranged on the outer parts of the two transmission rollers one. A driving motor one, the driving motor one is fixedly connected to the outer part of one of the vertical plates, and the output end of the driving motor one is connected to one side of the thin rod one on the same side through a coupling.

9. The automatic continuous drying device for a flexible circuit board according to claim 8, characterized in that, Three equally spaced circular openings are provided on the two vertical plates. The same thin rod two is movably connected to the inner walls of the two circular openings on the same side. Three equally spaced rollers two are fixedly connected to the outer parts of the two thin rod two close to the thin rod one. A driving motor two is fixedly connected to the outer part of one of the vertical plates, and the output end of the driving motor two is connected to one side of the thin rod two on the same side through a coupling.

10. An automatic continuous drying device for a flexible printed circuit board according to claim 9, characterized in that, Two transmission rollers two are fixedly connected to the outer parts of the two thin rod two far from the driving motor two among the three thin rod two. The same belt two is arranged on the outer parts of the three transmission rollers two, and two symmetrical tensioning rods are arranged on the outer part of the belt two. The tensioning rods are fixedly connected to the sides opposite to the vertical plates on the same side.