Circuit board surface coating device for circuit board production

Abstract

The invention relates to the technical field of surface coating devices, in particular to a circuit board surface coating device for circuit board production, which comprises a coating machine body, a spray gun movably mounted on the coating machine body, a conveyor belt movably mounted on the coating machine body below the spray gun, and a jig assembly movably mounted on the conveyor belt, the jig assembly is used for fixedly connecting the circuit board; the lifting assembly is movably mounted on the coating machine body; the feeding frame is used for containing the circuit board, and the height of the feeding frame is adjusted through a lifting assembly; the feeding assembly is used for feeding the circuit boards in the feeding frame into the jig assembly in sequence; the circuit board in the jig assembly is overturned through the overturning assembly, so that the coating device can conveniently and automatically feed and overturn the circuit board, in the feeding process, the circuit board moves in a sliding mode, electrical elements on the circuit board are not prone to being damaged, no extra equipment is added to power equipment for feeding and overturning, and therefore the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of surface coating devices, in particular to a circuit board surface coating device used in circuit board production. Background Art

[0002] Circuit board, also known as printed circuit board (PCB), is an indispensable core component in various electronic systems. It plays a key role in providing mechanical assembly support and electrical connection for components. It is also responsible for signal transmission, reception and transmission, and power supply of electronic equipment. Therefore, it is known as the "mother of electronic products."

[0003] In the production and coating process of circuit boards, there are some problems that need to be solved urgently. Due to the large number of electronic components on the circuit board and the high uncertainty of their positions, when a robotic arm is used to absorb or grab the circuit board, it is very easy to be blocked by the electronic components, resulting in poor adsorption and grabbing fixation effects. In addition, if the teeth are grabbed too tightly during grabbing, the circuit board will bend, causing the electronic components on it to squeeze each other, and eventually causing damage to the components. This undoubtedly brings great troubles to the feeding link of the circuit board. Furthermore, the coating of the circuit board usually requires double-sided coating. However, most of the existing double-sided coating methods rely on additional mechanical drive units to achieve the flipping of the circuit board, which undoubtedly increases the production cost.

[0004] In order to solve the above problems, the present application now proposes a circuit board surface coating device for circuit board production. Summary of the invention

[0005] In order to solve the above technical problems, the embodiment of the present application provides a circuit board surface coating device for circuit board production, including a coating body, a spray gun is movably mounted on the coating body, a conveyor belt is movably mounted on the coating body at a position below the spray gun, and also includes a jig assembly, the jig assembly is movably mounted on the conveyor belt, and the jig assembly is fixedly connected to the circuit board; A lifting assembly, wherein the lifting assembly is movably mounted on the coating machine body; A loading rack, which stores circuit boards and is height-adjustable by a lifting assembly; A loading component, which loads the circuit boards in the loading rack into the fixture component in sequence; A flipping assembly is used to flip the circuit board in the fixture assembly.

[0006] In some embodiments, the jig assembly includes a base plate, a back cover plate, a front cover plate and a hinge. The two sides of the base plate are fixedly connected to the conveyor belt by rivets. The back cover plate is movably mounted on the base plate. The front cover plate is movably mounted on the back cover plate by a hinge. The circuit board is located between the back cover plate and the front cover plate.

[0007] In some embodiments, the fixture assembly further includes side edges, a bottom edge, and buckles, the side edges and the bottom edge are fixedly connected to the back cover plate, the buckles are fixedly connected to the front cover plate, and the front cover plate is closed by mutually snapping with the back cover plate through the buckles.

[0008] In some embodiments, the lifting assembly includes a lifting plate, a screw, a guide rod, a No. 1 bearing, a ratchet, a locking tongue, a back plate and a spring sheet. The guide rod is fixedly connected to the coating body, the screw is movably installed in the coating body through the No. 1 bearing, and the upper end of the screw extends outward and is fixedly connected to the ratchet. The lifting plate is movably installed on the guide rod and the screw. The coating body is rotatably connected with a locking tongue. The coating body is fixedly connected with a back plate at a side position of the locking tongue. The spring sheet is located between the locking tongue and the back plate, and the two ends of the spring sheet are respectively fixedly connected to the back plate and the locking tongue, and the locking tongue is movably installed with the ratchet.

[0009] In some embodiments, the lifting assembly also includes a push tube, a No. 1 storage sleeve, a No. 1 slider, a No. 1 spring, a sliding sleeve, a limiting rod, a movable groove, a No. 2 spring, a push plate and a movable plate. The sliding sleeve is fixedly connected to the coating body, the limiting rod is fixedly connected in the sliding sleeve, the movable groove is opened on one side of the push tube, the No. 1 storage sleeve is fixedly connected to the other side of the push tube, the No. 1 spring and the No. 1 slider are movably installed in the No. 1 storage sleeve, and the No. 1 spring is located on the inner side of the No. 1 slider, the push tube is movably installed in the sliding sleeve, the limiting rod is movably installed in the movable groove, the push plate is fixedly connected to one end of the push tube, the No. 2 spring is movably installed on the push tube and is located between the push plate and the sliding sleeve, and the movable plate is fixedly connected to the bottom surface of the base plate.

[0010] In some embodiments, a plurality of slots are provided in the loading rack, and the circuit board is movably installed in the slots of the loading rack.

[0011] In some embodiments, the feeding assembly includes a No. 1 transmission rod, a No. 1 transmission gear, a No. 2 bearing, a turntable, a connecting rod, a linkage rod, a telescopic rod, a connecting piece, a guide plate, a guide sleeve, a No. 2 transmission rod, a No. 2 transmission gear, a No. 3 transmission rod, a No. 3 transmission gear, a No. 4 gear and a support bearing. The No. 1 transmission rod is rotatably connected to the coating body through the No. 2 bearing, the No. 1 transmission gear is fixedly connected to the No. 1 transmission rod, the turntable is fixedly connected to the upper end position of the No. 1 transmission rod, the connecting rod is fixedly connected to the turntable, the guide sleeve and the support bearing are fixedly connected to the coating body, and the telescopic rod It is movably installed in the material guide sleeve, one end of the telescopic rod is fixedly connected with a connecting piece, and the other end of the telescopic rod is fixedly connected with a material guide plate, the No. 2 transmission gear is fixedly connected to the two end positions of the No. 1 transmission rod, the No. 2 transmission rod and the No. 3 transmission rod are movably installed on the coating body through supporting bearings, the No. 2 transmission rod is movably installed with the No. 1 transmission gear through the No. 2 transmission gear at one end, the No. 3 transmission gear is fixedly connected to one end position of the No. 3 transmission rod, the No. 2 transmission rod is movably installed with the No. 3 transmission gear through the No. 2 transmission gear at the other end, and the No. 4 gear is fixedly connected to the No. 3 transmission rod.

[0012] In some embodiments, the loading assembly also includes a rollover rod, a rollover sleeve, a No. 3 bearing, a connecting plate, a rack plate, a slide bar, a tooth plate, a support seat, a slide groove and a material guide frame. The rollover rod is fixedly connected to the front cover plate, the support seat is fixedly connected to the coating body, the slide groove is opened at the upper position of the support seat, the slide bar is fixedly connected to the two side positions of the rack plate, the tooth plate is fixedly connected to the bottom position of the rack plate, the rack plate is movably installed with the slide groove of the support seat through the slide bar, one end of the rack plate is rotatably connected to the connecting plate, the upper end of the connecting plate is rotatably connected to the rollover sleeve through the No. 3 bearing, the rollover sleeve is movably installed with the rollover rod, and the tooth plate is movably installed with the No. 4 gear.

[0013] In some embodiments, the flip assembly includes a flip bearing, a flip rod, a flip gear, a gear frame and a flip frame, the flip bearing is fixedly connected to the base plate, one end of the flip rod is fixedly connected to the reverse cover plate, and the other end of the flip rod is rotatably connected in the flip bearing, the flip gear is fixedly connected to the flip rod, the flip frame is fixedly connected to the coating body, and the gear frame is slidably connected to the flip frame.

[0014] In some embodiments, the flipping assembly also includes an insert rod, a positioning groove, a positioning sleeve, a No. 3 spring, a positioning slider and a hanging hole, the insert rod is fixedly connected to the spray gun, the positioning sleeve is fixedly connected to the flipping frame, the positioning groove is opened at the side position of the gear frame, the No. 3 spring and the positioning slider are movably installed in the positioning sleeve, and the No. 3 spring is located at the inner side of the positioning slider, the hanging hole is fixedly connected to the upper position of the gear frame, and the insert rod is movably installed in the hanging hole.

[0015] The present invention has at least the following beneficial effects: Through the provided lifting assembly and loading rack, the two sides of the circuit board are slid into the slots of the loading rack. When the conveyor belt moves the bottom plate, the moving plate pushes the push plate, so that the push tube moves inward, and the No. 1 slider on it pushes the ratchet wheel to rotate in turn, so that the screw rod rotates, and the height of the loading rack is increased, so that the circuit boards arranged from bottom to top in the loading rack can be moved to the side position of the guide plate in turn, so that the circuit boards in the loading rack are easy to switch; Through the provided loading assembly, when the front cover plate is turned upward, the guide plate moves forward, pushing the corresponding circuit board in the loading rack to slide forward, and the circuit board slides into the rear cover plate under the guidance of the guide rack, and is finally blocked by the bottom edge, so as to be positioned between the side plate and the bottom plate. After the front cover plate is closed, the circuit board is fixed and limited, so that automatic loading of the circuit board is realized. The circuit board adopts a sliding manner, so that the circuit board is not easy to fall during the loading process, the loading position is more accurate, and the circuit components thereon are not easy to be damaged. In addition, during the loading process, all the power comes from the movement of the conveyor belt and the turning of the rear cover plate, which reduces the power source and reduces the cost. By setting up the flip assembly, after the spray gun coating is completed, during the process of resetting the spray gun upward, the rod is inserted into the hanging hole, driving the jig assembly to flip so that the other side of the circuit board faces upward, the spray gun is separated from the hanging hole, and the spray gun coats the other side of the circuit board. After the coating is completed, the rod is inserted into the hanging hole again and moves downward, so that the jig assembly flips again, resets, and then is output as the conveyor belt moves. This structure makes it easy to flip the jig assembly, and no additional power equipment is required, thereby reducing costs.

[0016] Invention Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of another aspect of the present invention; Figure 3 It is an enlarged view of A of the present invention; Figure 4 It is an enlarged view of B of the present invention; Figure 5 This is a structural schematic diagram of the material loading rack of the present invention being located on a lifting plate; Figure 6 It is a structural schematic diagram of the sliding sleeve and the push tube of the present invention; Figure 7 It is a structural schematic diagram of the material guide frame of the present invention; Figure 8 It is a schematic diagram of the connection structure of the first transmission rod, the second transmission rod and the third transmission rod of the present invention; Fig. 9 It is a schematic diagram of the connection structure of the connecting plate, the rack plate and the supporting seat of the present invention; Fig.10 It is a schematic diagram of the connection structure of the fixture assembly of the present invention; Fig.11 It is a schematic structural diagram of the turning gear, the latch rack and the turning rack of the present invention.

[0017] In the figure: 1, coating machine body; 2, spray gun; 3, conveyor belt; 4, fixture assembly; 401, bottom plate; 402, back cover plate; 403, front cover plate; 404, side edge; 405, bottom edge; 406, buckle; 407, hinge; 5, lifting assembly; 501, lifting plate; 502, screw rod; 503, guide rod; 504, No. 1 bearing; 505, ratchet; 506, lock tongue; 507, back plate; 50 8. Spring piece; 509. Push tube; 510. No. 1 storage sleeve; 511. No. 1 slider; 512. No. 1 spring; 513. Sliding sleeve; 514. Limiting rod; 515. Movable slot; 516. No. 2 spring; 517. Push plate; 518. Moving plate; 6. Loading rack; 601. Slot; 7. Loading assembly; 701. Rollover rod; 702. No. 1 transmission rod; 703. No. 1 transmission gear; 704. No. 2 shaft bearing; 705, turntable; 706, connecting rod; 707, linkage rod; 708, telescopic rod; 709, connecting piece; 710, guide plate; 711, guide sleeve; 712, No. 2 transmission rod; 713, No. 2 transmission gear; 714, No. 3 transmission rod; 715, No. 3 transmission gear; 716, No. 4 gear; 717, rollover sleeve; 718, No. 3 bearing; 719, connecting plate; 720, rack plate; 7 21. Slide bar; 722. Gear plate; 723. Support seat; 724. Slide groove; 725. Material guide rack; 726. Support bearing; 8. Flip assembly; 801. Insert rod; 802. Flip bearing; 803. Flip rod; 804. Flip gear; 805. Gear rack; 806. Flip rack; 807. Positioning groove; 808. Positioning sleeve; 809. No. 3 spring; 810. Positioning slider; 811. Hanging hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: See also Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Fig.10 The present invention provides a technical solution: a circuit board surface coating device for circuit board production, comprising a coating body 1, a spray gun 2 is movably mounted on the coating body 1, a conveyor belt 3 is movably mounted on the coating body 1 at a position below the spray gun 2, and also comprises a jig assembly 4, the jig assembly 4 is movably mounted on the conveyor belt 3, and the jig assembly 4 is fixedly connected to the circuit board; A lifting assembly 5, the lifting assembly 5 is movably mounted on the coating machine body 1; The loading rack 6 stores the circuit boards and is height-adjustable through the lifting assembly 5 .

[0020] Further, the jig assembly 4 includes a bottom plate 401, a back cover plate 402, a front cover plate 403 and a hinge 407. The two sides of the bottom plate 401 are fixedly connected to the conveyor belt 3 by rivets, the back cover plate 402 is movably mounted on the bottom plate 401, and the front cover plate 403 is movably mounted on the back cover plate 402 by the hinge 407. The circuit board is located between the back cover plate 402 and the front cover plate 403. The front cover plate 403 can be turned over by means of the hinge 407, so as to display the circuit board on the rear cover plate 402 and to facilitate the placement and removal of the circuit board.

[0021] Furthermore, the fixture assembly 4 further includes a side 404, a bottom 405 and a buckle 406, the side 404 and the bottom 405 are fixedly connected to the back cover 402, the buckle 406 is fixedly connected to the front cover 403, and the front cover 403 is clamped and closed with the back cover 402 through the buckle 406; The side edge 404 and the bottom edge 405 are located at three of the four sides of the rectangle, thereby confining the circuit board therein, and the opening direction faces the guide frame 725, so as to facilitate the circuit board to slide from the guide frame 725 to the position between the side edge 404 and the bottom edge 405.

[0022] Further, the lifting assembly 5 includes a lifting plate 501, a screw 502, a guide rod 503, a No. 1 bearing 504, a ratchet 505, a locking tongue 506, a backing plate 507 and a spring piece 508. The guide rod 503 is fixedly connected in the coating body 1, the screw 502 is movably installed in the coating body 1 through the No. 1 bearing 504, and the upper end of the screw 502 extends outward and is fixedly connected with the ratchet 505. The lifting plate 501 is movably installed on the guide rod 503 and the screw 502, the coating body 1 is rotatably connected with the locking tongue 506, the coating body 1 is fixedly connected with the backing plate 507 at the side position of the locking tongue 506, the spring piece 508 is located between the locking tongue 506 and the backing plate 507, and the two ends of the spring piece 508 are respectively fixedly connected to the backing plate 507 and the locking tongue 506, and the locking tongue 506 and the ratchet 505 are movably installed; The lifting plate 501 is provided with sliding holes and screw holes at positions corresponding to the guide rod 503 and the screw rod 502, respectively. The screw rod 502 rotates when the ratchet 505 rotates, and the locking tongue 506 and the ratchet 505 are movably installed with each other. When the ratchet 505 rotates one by one, the locking tongue 506 engages with the locking teeth one by one, and the spring piece 508 is compressed again and again. The locking tongue 506 structure prevents the ratchet 505 from rotating in the opposite direction, so that the lifting plate 501 on the screw rod 502 will not fall naturally under the action of gravity.

[0023] Furthermore, the lifting assembly 5 also includes a push tube 509, a No. 1 storage sleeve 510, a No. 1 slider 511, a No. 1 spring 512, a sleeve 513, a limiting rod 514, a movable groove 515, a No. 2 spring 516, a push plate 517 and a movable plate 518, the sleeve 513 is fixedly connected to the coating machine body 1, the limiting rod 514 is fixedly connected in the sleeve 513, the movable groove 515 is opened on one side of the push tube 509, the No. 1 storage sleeve 510 is fixedly connected to the other side of the push tube 509, and the No. 1 The spring 512 and the first slider 511 are movably installed in the first storage sleeve 510, and the first spring 512 is located at the inner side of the first slider 511. The push tube 509 is movably installed in the sliding sleeve 513. The limiting rod 514 is movably installed in the movable groove 515. The push plate 517 is fixedly connected to one end of the push tube 509. The second spring 516 is movably installed on the push tube 509 and is located between the push plate 517 and the sliding sleeve 513. The moving plate 518 is fixedly connected to the bottom surface of the bottom plate 401. A plurality of retractable No. 1 sliders 511 are provided at the front end of the push tube 509. One side of the No. 1 slider 511 is provided with an arc surface, and the other side is a plane structure. The plane structure is engaged with the teeth of the ratchet 505, thereby pushing the ratchet 505 to rotate.

[0024] Furthermore, a plurality of slots 601 are provided in the loading rack 6 , and the circuit boards are movably installed in the slots 601 of the loading rack 6 .

[0025] The bottom surface of the bottom plate 401 is provided with a plurality of rivets, which are riveted with the conveyor belts 3 at both sides. The conveyor belts 3 move back and forth left and right, thereby driving the jig assembly 4 to move back and forth left and right. The conveyor belts 3 drive the jig assembly 4 to move toward the loading rack 6. The movable plate 518 pushes the push plate 517, and the push plate 517 pushes the push tube 509 to move in the sliding sleeve 513. The limiting rod 514 moves in the movable groove 515. The No. 2 spring 516 is compressed, and the No. 1 sliders 511 at the front end of the push tube 509 move synchronously. The No. 1 slider 511 at the corresponding position uses a plane structure on one side to engage with the teeth of the ratchet 505, and pushes the ratchet 5 05 rotates, so that the ratchet 505 drives the screw 502 to rotate, so that the lifting plate 501 moves upward, and the loading rack 6 on the lifting plate 501 moves synchronously. A plurality of card slots 601 are arranged at equal distances in the loading rack 6, and the two sides of the circuit board slide into the card slots 601 to store the circuit board. By moving the push plate 517 a set distance, a fixed number of No. 1 sliders 511 push the ratchet 505 to rotate, so that the screw 502 rotates a fixed amount, and the lifting plate 501 is raised a fixed amount, so that the circuit boards arranged from top to bottom inside are raised in turn, and the ratchet 505 is prevented from rotating in the opposite direction by the lock tongue 506.

[0026] Embodiment 2: See also Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10On the basis of Example 1, the present invention provides another technical solution: a loading component 7, the loading component 7 loads the circuit board in the loading rack 6 into the fixture component 4 in sequence, the loading component 7 includes a No. 1 transmission rod 702, a No. 1 transmission gear 703, a No. 2 bearing 704, a turntable 705, a connecting rod 706, a linkage rod 707, a telescopic rod 708, a connecting piece 709, a guide plate 710, a guide sleeve 711, a No. 2 transmission rod 712, a No. 2 transmission gear 713, a No. 3 transmission rod 714, a No. 3 transmission gear 715, a No. 4 gear 716 and a supporting bearing 726, the No. 1 transmission rod 702 is rotatably connected to the coating machine body 1 through the No. 2 bearing 704, the No. 1 transmission gear 703 is fixedly connected to the No. 1 transmission rod 702, the turntable 705 is fixedly connected to the upper end position of the No. 1 transmission rod 702, and the connecting rod 706 is fixedly connected to the turntable 705, the guide sleeve 711 and the support bearing 726 are fixedly connected to the coating machine body 1, the telescopic rod 708 is movably installed in the guide sleeve 711, one end of the telescopic rod 708 is fixedly connected to the connecting piece 709, and the other end of the telescopic rod 708 is fixedly connected to the guide plate 710, the second transmission gear 713 is fixedly connected to the two end positions of the first transmission rod 702, the second transmission rod 712 and the third transmission rod 714 are movably installed on the coating machine body 1 through the support bearing 726, the second transmission rod 712 is movably installed with the first transmission gear 703 through the second transmission gear 713 at one end, the third transmission gear 715 is fixedly connected to one end position of the third transmission rod 714, the second transmission rod 712 is movably installed with the third transmission gear 715 through the second transmission gear 713 at the other end, and the fourth gear 716 is fixedly connected to the third transmission rod 714; The third transmission rod 714 rotates, and the second transmission rod 712 rotates through the third transmission gear 715 and the second transmission gear 713. The second transmission rod 712 rotates, and the first transmission rod 702 rotates through the second transmission gear 713 and the first transmission gear 703. The turntable 705 on the upper end of the first transmission rod 702 rotates synchronously. The turntable 705 enables the telescopic rod 708 to move back and forth through the linkage rod 707. As the turntable 705 rotates, the telescopic rod 708 moves downward and forward, thereby gradually approaching the circuit board and pushing the circuit board outward.

[0027] Furthermore, the loading assembly 7 also includes a rollover rod 701, a rollover sleeve 717, a third bearing 718, a connecting plate 719, a rack plate 720, a slide bar 721, a latch plate 722, a support seat 723, a slide groove 724 and a guide rack 725. The rollover rod 701 is fixedly connected to the front cover plate 403, the support seat 723 is fixedly connected to the coating machine body 1, the slide groove 724 is opened at the upper position of the support seat 723, the slide bar 721 is fixedly connected to the gear plate 72 ... gear plate 722, the support seat 723 is fixedly connected to At both sides of the strip plate 720, the latch plate 722 is fixedly connected to the bottom surface of the rack plate 720, the rack plate 720 is movably installed through the slide bar 721 and the slide groove 724 of the support seat 723, one end of the rack plate 720 is rotatably connected to the connecting plate 719, the upper end of the connecting plate 719 is rotatably connected to the rollover sleeve 717 through the No. 3 bearing 718, the rollover sleeve 717 is movably installed with the rollover rod 701, and the latch plate 722 is movably installed with the No. 4 gear 716; The rollover rod 701 is fixedly connected to the front cover plate 403. When the front cover plate 403 flips upward, the rollover rod 701 drives the rollover sleeve 717 to rotate downward, driving the rack plate 720 to move forward. The rack plate 720 engages with the fourth gear 716 through the tooth plate 722 on the bottom surface, thereby driving the third transmission rod 714 to rotate.

[0028] When the conveyor belt 3 moves the bottom plate 401, after the rollover rod 701 enters the rollover sleeve 717, the conveyor belt 3 is stopped, and the front cover plate 403 is flipped sideways, so that the rollover rod 701 and the rollover sleeve 717 are synchronously rotated downward, thereby pushing the rack plate 720 forward, and the rack plate 720 is meshed with the fourth gear 716 through the tooth plate 722, so that the third transmission rod 714 rotates, and the third transmission rod 714 drives the second transmission rod 712 through the third transmission gear 715 and other structures, and the second transmission rod 712 drives the second transmission gear 713 and the first transmission gear 703 through the second transmission gear 713 and the first transmission gear 703. , so that the No. 1 transmission rod 702 rotates, and finally the turntable 705 rotates, and the linkage rod 707 on the turntable 705 rotates, so that the telescopic rod 708 moves forward, and pushes the circuit board in the loading rack 6. When the front cover 403 is opened to a suitable position, the staff manually unloads the circuit board on the back cover 402. As the linkage rod 707 moves forward, the circuit board is ejected, and then enters the guide rack 725, and slides to the back cover 402 through the guide rack 725. The movement of the circuit board is finally stopped by the bottom edge 405, thereby limiting the position of the circuit board; Then the front cover plate 403 is closed, so that the rollover rod 701 and the rollover sleeve 717 rotate in the opposite direction, and the rack plate 720 moves in the opposite direction, which drives the No. 3 transmission rod 714 to rotate in the opposite direction, so that the turntable 705 rotates in the opposite direction, and the telescopic rod 708 is reset. At this time, the conveyor belt 3 moves in the opposite direction, so that the fixture assembly 4 moves in the opposite direction and gradually approaches the spray gun 2. After the rollover rod 701 is moved out of the rollover sleeve 717, the moving plate 518 and the push plate 517 are separated from each other. At this time, the push tube 509 is reset under the push of the No. 2 spring 516, and the No. 1 slider 511 is moved in the opposite direction. The arc surface of the No. 1 slider 511 contacts the teeth of the ratchet 505. The arc surface structure facilitates the No. 1 slider 511 to move in the opposite direction in the No. 1 storage sleeve 510, thereby compressing the No. 1 spring 512 to facilitate the reset of the push tube 509.

[0029] Embodiment three: See also Figure 1 , Figure 2 , Figure 4 , Fig.10 and Fig.11 , the present invention provides another technical solution based on Example 2: a flip assembly 8, the flip assembly 8 flips the circuit board in the fixture assembly 4, the flip assembly 8 includes a flip bearing 802, a flip rod 803, a flip gear 804, a latch rack 805 and a flip rack 806, the flip bearing 802 is fixedly connected to the bottom plate 401, one end of the flip rod 803 is fixedly connected to the back cover plate 402, and the other end of the flip rod 803 is rotatably connected to the flip bearing 802, the flip gear 804 is fixedly connected to the flip rod 803, the flip rack 806 is fixedly connected to the coating machine body 1, and the latch rack 805 is slidably connected to the flip rack 806; One end of the flip rod 803 is fixedly connected to the reverse cover plate 402, and the other end is rotationally connected to the flip bearing 802. The flip gear 804 is fixedly connected to the flip rod 803. Several teeth on the side of the tooth frame 805 are engaged with the flip gear 804. By positioning the tooth frame 805, the flip gear 804 is positioned, and finally the reverse cover plate 402 is fixed and limited.

[0030] Further, the flip assembly 8 also includes an insertion rod 801, a positioning groove 807, a positioning sleeve 808, a No. 3 spring 809, a positioning slide block 810 and a hanging hole 811, the insertion rod 801 is fixedly connected to the spray gun 2, the positioning sleeve 808 is fixedly connected in the flip frame 806, the positioning groove 807 is provided at the side position of the latch rack 805, the No. 3 spring 809 and the positioning slide block 810 are movably installed in the positioning sleeve 808, and the No. 3 spring 809 is located at the inner side position of the positioning slide block 810, the hanging hole 811 is fixedly connected to the upper position of the latch rack 805, and the insertion rod 801 is movably installed in the hanging hole 811; The spray gun 2 moves downward and sprays the circuit board. After spraying is completed, the spray gun 2 is moved upward, and the position of the spray gun 2 is adjusted laterally so that the insertion rod 801 is inserted into the hanging hole 811, thereby raising or lowering the tooth frame 805.

[0031] When the jig assembly 4 moves to a reasonable position below the spray gun 2, the spray gun 2 is moved downward, and the sprayed quick-drying glue passes through the notch on the front cover 403 to coat the circuit board. When the front coating is completed, the spray gun 2 is moved upward for a certain distance, and then the position of the spray gun 2 is adjusted laterally so that the insertion rod 801 is inserted into the hanging hole 811, and the gear rack 805 is pulled upward so that the gear rack 805 moves upward on the flip rack 806. The front end of the positioning slide block 810 is squeezed and continuously removed from the previous positioning groove 807 and moves to slide into the next positioning groove 807. The No. 3 spring 809 in the positioning sleeve 808 is continuously compressed. As the gear rack 805 moves, the flip gear 804 rotates, and the flip gear 80 4 drives the flip rod 803 to rotate, and the flip rod 803 drives the back cover plate 402 to rotate, so that the fixture assembly 4 starts to rotate. When the fixture assembly 4 is flipped 180 degrees and the other side of the circuit board is facing up, stop raising the spray gun 2, move the spray gun 2 horizontally, so that the insertion rod 801 is removed from the hanging hole 811, and then the spray gun 2 falls, and continues to spray the other side of the circuit board. After spraying is completed, move the spray gun 2 so that the insertion rod 801 is stuck in the hanging hole 811 again, and then move the spray gun 2 downward, so that the tooth frame 805 moves in the reverse direction on the flip frame 806, so that the fixture assembly 4 is flipped in the reverse direction, and the reset is completed, which is convenient for subsequent loading and other operations, and then the insertion rod 801 is removed, and the spray gun 2 is raised to wait for the next circuit board to be coated.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board surface coating device for circuit board production, comprising a coating body (1), a spray gun (2) movably mounted on the coating body (1), and a conveyor belt (3) movably mounted on the coating body (1) at a position below the spray gun (2), characterized in that: It also includes a jig assembly (4), wherein the jig assembly (4) is movably mounted on the conveyor belt (3), and the jig assembly (4) is fixedly connected to the circuit board; A lifting assembly (5), wherein the lifting assembly (5) is movably mounted on the coating machine body (1); A loading rack (6), the loading rack (6) receiving the circuit boards and having its height adjusted by a lifting assembly (5); A loading component (7), wherein the loading component (7) sequentially loads the circuit boards in the loading rack (6) into the fixture component (4); A flipping assembly (8), wherein the flipping assembly (8) flips the circuit board in the fixture assembly (4).

2. A circuit board surface coating device for circuit board production according to claim 1, characterized in that: The jig assembly (4) comprises a bottom plate (401), a back cover plate (402), a front cover plate (403) and a hinge (407); two sides of the bottom plate (401) are fixedly connected to the conveyor belt (3) by rivets; the back cover plate (402) is movably mounted on the bottom plate (401); the front cover plate (403) is movably mounted on the back cover plate (402) by the hinge (407); and the circuit board is located between the back cover plate (402) and the front cover plate (403).

3. A circuit board surface coating device for circuit board production according to claim 2, characterized in that: The jig assembly (4) further comprises a side edge (404), a bottom edge (405) and a buckle (406); the side edge (404) and the bottom edge (405) are fixedly connected to the back cover plate (402); the buckle (406) is fixedly connected to the front cover plate (403); the front cover plate (403) and the back cover plate (402) are mutually buckled and closed via the buckle (406).

4. A circuit board surface coating device for circuit board production according to claim 1, characterized in that: The lifting assembly (5) comprises a lifting plate (501), a screw rod (502), a guide rod (503), a No. 1 bearing (504), a ratchet (505), a locking tongue (506), a support plate (507) and a spring (508), wherein the guide rod (503) is fixedly connected to the coating machine body (1), the screw rod (502) is movably installed in the coating machine body (1) via the No. 1 bearing (504), and the upper end of the screw rod (502) extends outward and is fixedly connected to the ratchet (505), and the lifting plate (501) is fixedly connected to the coating machine body (1). 01) is movably mounted on a guide rod (503) and a screw rod (502); a locking tongue (506) is rotatably connected to the coating body (1); a supporting plate (507) is fixedly connected to the coating body (1) at a side position of the locking tongue (506); the spring piece (508) is located between the locking tongue (506) and the supporting plate (507); and the two ends of the spring piece (508) are respectively fixedly connected to the supporting plate (507) and the locking tongue (506); and the locking tongue (506) is movably mounted on the ratchet (505).

5. A circuit board surface coating device for circuit board production according to claim 2, characterized in that: The lifting assembly (5) further comprises a push tube (509), a No. 1 storage sleeve (510), a No. 1 slider (511), a No. 1 spring (512), a sleeve (513), a limiting rod (514), a movable groove (515), a No. 2 spring (516), a push plate (517) and a movable plate (518), wherein the sleeve (513) is fixedly connected to the coating machine body (1), the limiting rod (514) is fixedly connected in the sleeve (513), the movable groove (515) is provided at one side of the push tube (509), the No. 1 storage sleeve (510) is fixedly connected to the other side of the push tube (509), and the No. 1 A spring (512) and a first slider (511) are movably mounted in a first storage sleeve (510), and the first spring (512) is located at an inner side of the first slider (511). The push tube (509) is movably mounted in a sliding sleeve (513). The limiting rod (514) is movably mounted in a movable groove (515). The push plate (517) is fixedly connected to one end of the push tube (509). The second spring (516) is movably mounted on the push tube (509) and is located between the push plate (517) and the sliding sleeve (513). The movable plate (518) is fixedly connected to the bottom surface of the bottom plate (401).

6. A circuit board surface coating device for circuit board production according to claim 1, characterized in that: A plurality of slots (601) are provided in the loading rack (6), and the circuit boards are movably mounted in the slots (601) of the loading rack (6).

7. A circuit board surface coating device for circuit board production according to claim 2, characterized in that: The feeding assembly (7) comprises a first transmission rod (702), a first transmission gear (703), a second bearing (704), a rotating disk (705), a connecting rod (706), a linkage rod (707), a telescopic rod (708), a connecting piece (709), a material guide plate (710), a material guide sleeve (711), a second transmission rod (712), a second transmission gear (713), a third transmission rod (714), a third transmission gear (715), a fourth gear (716) and a connecting rod (717). ) and a supporting bearing (726), the No. 1 transmission rod (702) is rotatably connected to the coating machine body (1) via the No. 2 bearing (704), the No. 1 transmission gear (703) is fixedly connected to the No. 1 transmission rod (702), the turntable (705) is fixedly connected to the upper end of the No. 1 transmission rod (702), the connecting rod (706) is fixedly connected to the turntable (705), the guide sleeve (711) and the supporting bearing (726) are fixedly connected to the coating machine body (1). The body (1) is provided with a telescopic rod (708) movably mounted in a material guide sleeve (711), one end of the telescopic rod (708) is fixedly connected to a connecting piece (709), and the other end of the telescopic rod (708) is fixedly connected to a material guide plate (710), the second transmission gear (713) is fixedly connected to the two end positions of the first transmission rod (702), and the second transmission rod (712) and the third transmission rod (714) are movably mounted on the coating via support bearings (726). The second transmission rod (712) is movably mounted on the machine body (1) through the second transmission gear (713) at one end and the first transmission gear (703); the third transmission gear (715) is fixedly connected to one end of the third transmission rod (714); the second transmission rod (712) is movably mounted on the third transmission gear (715) through the second transmission gear (713) at the other end; and the fourth gear (716) is fixedly connected to the third transmission rod (714).

8. A circuit board surface coating device for circuit board production according to claim 7, characterized in that: The loading assembly (7) further comprises a rollover rod (701), a rollover sleeve (717), a third bearing (718), a connecting plate (719), a rack plate (720), a slide bar (721), a tooth plate (722), a support seat (723), a slide groove (724) and a material guide rack (725); the rollover rod (701) is fixedly connected to the front cover plate (403); the support seat (723) is fixedly connected to the coating machine body (1); the slide groove (724) is provided at an upper position of the support seat (723); the slide bar (721) is fixedly connected to the rack plate The rack plate (720) is fixedly connected to the bottom surface of the rack plate (720), the rack plate (720) is movably installed through the slide bar (721) and the slide groove (724) of the support seat (723), one end of the rack plate (720) is rotatably connected to a connecting plate (719), the upper end of the connecting plate (719) is rotatably connected to the rollover sleeve (717) through a No. 3 bearing (718), the rollover sleeve (717) is movably installed with the rollover rod (701), and the rack plate (722) is movably installed with the No. 4 gear (716).

9. A circuit board surface coating device for circuit board production according to claim 2, characterized in that: The flip assembly (8) comprises a flip bearing (802), a flip rod (803), a flip gear (804), a latch gear frame (805) and a flip frame (806); the flip bearing (802) is fixedly connected to the bottom plate (401); one end of the flip rod (803) is fixedly connected to the back cover plate (402); the other end of the flip rod (803) is rotatably connected to the flip bearing (802); the flip gear (804) is fixedly connected to the flip rod (803); the flip frame (806) is fixedly connected to the coating machine body (1); and the latch gear frame (805) is slidably connected to the flip frame (806).

10. A circuit board surface coating device for circuit board production according to claim 9, characterized in that: The flip assembly (8) further comprises an insert rod (801), a positioning groove (807), a positioning sleeve (808), a No. 3 spring (809), a positioning slide block (810) and a hanging hole (811); the insert rod (801) is fixedly connected to the spray gun (2); the positioning sleeve (808) is fixedly connected to the flip frame (806); the positioning groove (807) is provided at a side position of the latch gear frame (805); the No. 3 spring (809) and the positioning slide block (810) are movably installed in the positioning sleeve (808); the No. 3 spring (809) is located at an inner side position of the positioning slide block (810); the hanging hole (811) is fixedly connected to an upper position of the latch gear frame (805); and the insert rod (801) is movably installed in the hanging hole (811).

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