An automatic plate turning machine for PCB printing

Abstract

The present invention discloses an automatic plate turning machine for printing PCB boards, and relates to the technical field of printing PCB boards, comprising a support plate, wherein the top of the support plate is fixedly connected with a support frame, wherein two mounting tubes are rotatably connected in the support frame, and a first mounting box is fixedly connected between the two mounting tubes. The automatic plate turning machine for printing PCB boards automatically loads and unloads PCB boards through a loading and unloading mechanism, so that the PCB boards are loaded onto a flipping feeding mechanism on two connecting frames, and then the PCB boards are automatically fed into the printing machine through the flipping feeding mechanism for printing, and then the PCB boards are automatically flipped and the other side is printed. During printing, the loading and unloading mechanism automatically loads the next PCB board, and after the printing is completed, the mounting tube and the first mounting box are driven to rotate, so that the mounting tube and the first mounting box are rotated to the loading and unloading position for unloading, thereby realizing dual-station simultaneous printing processing on both sides of the PCB board, and greatly improving the printing efficiency and printing effect of the PCB board.

Description

Technical Field

[0001] The invention relates to the technical field of PCB board printing, and in particular to an automatic board turning machine for PCB board printing. Background Art

[0002] PCB, also known as printed circuit board, is an important part of electronic circuits as a carrier of electronic components and electrical connections. It occupies an absolute dominant position in the electronics industry. Printed circuit boards have developed from single-layer boards to double-layer boards, multi-layer boards and flexible boards. Their shrinking size, improved performance and reduced costs have enabled printed circuit boards to maintain strong competitiveness in the future development of the electronics industry. Among various printing technologies, inkjet printing technology has attracted much attention due to its advantages of fewer processes, low energy consumption, low cost and low pollution.

[0003] At present, enterprises need to perform spray printing on PCB boards during the production and processing of PCB boards. When spray printing on PCB boards, intelligent spray printers are usually used to spray print on the surface of PCB boards. At present, in the spray printing production process, some PCB boards need to be spray printed on both sides. When spraying, the staff needs to flip the PCB board on one side and then send it to the spray printer for re-printing, which leads to a low degree of automation in the spray printing of PCB boards and low spray printing efficiency of PCB boards. At the same time, the ink sprayed on the surface of the PCB board cannot be dried in time after spray printing, resulting in poor firmness of some sprayed inks, causing the printed inks to shift, resulting in poor quality of the printed PCB boards. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic plate turning machine for PCB board printing to solve the shortcomings of the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] An automatic plate turning machine for printing PCB boards, comprising a support plate, a support frame fixedly connected to the top of the support plate, two mounting tubes rotatably connected in the support frame, a first mounting box fixedly connected between the two mounting tubes, a plurality of connecting frames fixedly connected to the outer surface of the first mounting box, a turning feeding mechanism arranged in the connecting frame, and the turning feeding mechanism used to clamp and turn over the PCB board;

[0007] Two inkjet printers are fixedly connected inside the support frame, the outer surface of the mounting tube is transmission-connected with a driving mechanism connected to the support frame, the driving mechanism is used to drive the mounting tube to rotate, the connecting frame is provided with a blowing and drying mechanism connected to the first mounting box, the blowing and drying mechanism is used to clean the dust on the surface of the PCB and dry the PCB board after printing, the supporting plate is fixedly connected with a mounting platform, the mounting platform is provided with a loading and unloading mechanism, the loading and unloading mechanism is used to load and unload the PCB board.

[0008] As a further solution of the present invention: the flip feeding mechanism includes two transmission threaded rods rotatably connected to the connecting frame, the two transmission threaded rods are connected by a transmission wheel and a transmission belt, one end of one of the transmission threaded rods is fixedly connected to a transmission motor fixedly connected to the connecting frame through a coupling, the outer surface of the transmission threaded rod is threadedly matched with a transmission plate, a transmission groove is provided on the transmission plate, a second installation box is fixedly connected in the transmission groove, the second installation box is rotatably connected with forward and reverse threaded rods, the outer surfaces of the forward and reverse threaded rods are threadedly matched with two clamping boxes slidably connected to the transmission groove, the outer surfaces of the forward and reverse threaded rods are transmission-connected with a first transmission mechanism connected to the second installation box, the clamping box is rotatably connected with a mounting shaft, one end of the mounting shaft is fixedly connected with a clamping plate, and the outer surface of the mounting shaft is transmission-connected with a second transmission mechanism connected to the clamping box.

[0009] As a further solution of the present invention: the first transmission mechanism includes a first motor fixedly connected to the second mounting box, the output end of the first motor is fixedly connected to a first rotating shaft rotatably connected to the second mounting box through a coupling, the outer surface of the first rotating shaft is fixedly sleeved with a first bevel gear, and the outer surface of the first bevel gear is meshingly connected with a second bevel gear fixedly sleeved with the forward and reverse threaded rods.

[0010] As a further solution of the present invention: the second transmission mechanism includes an electric telescopic rod fixedly connected to the clamping box, one end of the electric telescopic rod is fixedly connected to a transmission rack slidably connected to the clamping box, and one side of the transmission rack is meshedly connected to a transmission gear fixedly sleeved on the mounting shaft.

[0011] As a further solution of the present invention: a rubber buffer pad is fixedly connected to one side of the clamping plate.

[0012] As a further solution of the present invention: the driving mechanism includes a driving motor fixedly connected to the support frame, the output end of the driving motor is fixedly connected to the driving shaft through a coupling, the outer surface of the driving shaft is fixedly sleeved with a first gear, and the outer surface of the first gear is meshingly connected with a second gear fixedly sleeved with the mounting tube.

[0013] As a further solution of the present invention: the blowing and drying mechanism includes a first connecting pipe fixedly connected to the first installation box, an electromagnetic valve is arranged on the first connecting pipe, the outer surface of the first connecting pipe is fixedly connected to a plurality of blowing boxes fixedly connected to the connecting frame through a pipeline, a blowing hood is fixedly connected to one side of the blowing box, and one end of the installation pipe is rotatably connected to an air supply mechanism connected to the support frame.

[0014] As a further solution of the present invention: the air supply mechanism includes a hot air blower fixedly connected to the support frame, the output end of the hot air blower is fixedly connected to a second connecting pipe rotatably connected to the mounting pipe through a pipeline, and the second connecting pipe is fixedly connected to the support frame.

[0015] As a further solution of the present invention: the loading and unloading mechanism includes a robotic arm fixedly connected to the mounting platform, the output end of the robotic arm is fixedly connected to a vacuum tube, the outer surface of the vacuum tube is fixedly connected to a plurality of vacuum suction cups, the outer surface of the vacuum tube is fixedly connected to a vacuum pump connected to the mounting platform through a hose, and two belt conveyors are fixedly connected to the top of the mounting platform.

[0016] Beneficial effects of the present invention:

[0017] (1) The PCB board is automatically loaded and unloaded by the loading and unloading mechanism, and is loaded onto the flip feeding mechanism on the two connecting frames. Then, the driving mechanism drives the mounting tube, the first mounting box and the connecting frame to rotate to the position of the inkjet printer. Then, the flip feeding mechanism automatically feeds the PCB board into the inkjet printer for printing, and then the PCB board is automatically flipped over to print on the other side. During printing, the loading and unloading mechanism automatically loads the next PCB board. After printing is completed, the mounting tube and the first mounting box are driven to rotate to the loading and unloading position for unloading, thereby realizing the dual-station simultaneous printing of both sides of the PCB board, which greatly improves the printing efficiency and printing effect of the PCB board.

[0018] (2) At the same time, the PCB board is loaded between the clamping plates in the connecting frame through the loading and unloading mechanism, and then the positive and negative threaded rods are driven to rotate through the first transmission mechanism, and the positive and negative threads drive the clamping box, the mounting shaft and the clamping plate to clamp the PCB board, thereby clamping and fixing PCB boards of different sizes. After clamping and fixing, the mounting shaft and the clamping plate are driven to rotate through the second transmission mechanism, and the clamped PCB board is turned over, thereby automatically clamping and fixing and automatically turning over PCB boards of different sizes, which greatly improves the automation degree of PCB printing, further improves the printing efficiency of PCB boards, and also improves the applicability of the device.

[0019] (3) After the double-sided printing of the PCB board is completed, the printed PCB board is then driven to move to the loading and unloading position, and then the transmission motor drives the transmission threaded rod to rotate, and the transmission threaded rod drives the transmission plate and the clamping box to move, thereby driving the printed PCB board to move, and at the same time, the blowing and drying mechanism on the connecting frame blows and dries both sides of the PCB board, thereby achieving timely drying of the surface of the printed PCB board, improving the firmness of the ink after printing, and further improving the quality of printing on the PCB board. After drying, the PCB board is moved to the loading and unloading position for automatic unloading. After unloading, the PCB board is then loaded by the loading and unloading mechanism. After loading, the above actions are repeated to blow air on the surface of the PCB board to blow away the dust and debris on the surface, thereby achieving automatic cleaning of the dust on the surface of the PCB board before printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a first stereogram of the external structure of the present invention;

[0022] Figure 2 is a second stereoscopic diagram of the external structure of the present invention;

[0023] Figure 3 It is a three-dimensional diagram of the external structure of the connection frame and the turning mechanism of the present invention;

[0024] Figure 4 It is a three-dimensional diagram of the internal structure of the connection frame and the turning mechanism of the present invention;

[0025] Figure 5 This is a front view of the internal structure of the clamping box of the present invention;

[0026] Figure 6 is a top view of the internal structure of the second installation box of the present invention;

[0027] Figure 7 The present invention Figure 2 A is an enlarged view of the middle image.

[0028] In the figure: 1, support plate; 2, support frame; 3, mounting tube; 4, first mounting box; 5, connecting frame; 6, inkjet printer; 7, mounting table; 11, transmission threaded rod; 12, transmission motor; 13, transmission plate; 14, transmission groove; 15, second mounting box; 16, positive and negative threaded rod; 17, clamping box; 18, mounting shaft; 19, clamping plate; 190, rubber buffer pad; 21, first motor; 22, first rotating shaft; 23, first bevel gear; 24, second bevel gear; 31, electric telescopic rod; 32, transmission rack; 33, transmission gear; 41, driving motor; 42, driving shaft; 43, first gear; 44, second gear; 51, first connecting pipe; 52, blowing box; 53, blowing hood; 54, hot hair dryer; 55, second connecting pipe; 61, mechanical arm; 62, vacuum tube; 63, vacuum suction cup; 64, belt conveyor. DETAILED DESCRIPTION

[0029] 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.

[0030] Embodiment 1

[0031] See also Figure 1-Figure 7 As shown, the present invention is an automatic plate turning machine for printing PCB boards, comprising a support plate 1, a support frame 2 is fixedly connected to the top of the support plate 1, two mounting tubes 3 are rotatably connected inside the support frame 2, a first mounting box 4 is fixedly connected between the two mounting tubes 3, a plurality of connecting frames 5 are fixedly connected to the outer surface of the first mounting box 4, a turning feeding mechanism is arranged inside the connecting frame 5, and the turning feeding mechanism is used to clamp and turn the PCB board;

[0032] Two inkjet printers 6 are fixedly connected inside the support frame 2, and the outer surface of the mounting tube 3 is transmission-connected with a driving mechanism connected to the support frame 2, and the driving mechanism is used to drive the mounting tube 3 to rotate. A blowing and drying mechanism connected to the first mounting box 4 is provided on the connecting frame 5, and the blowing and drying mechanism is used to clean the dust on the surface of the PCB board and dry the PCB board after printing. A mounting platform 7 is fixedly connected to the support plate 1, and a loading and unloading mechanism is provided on the mounting platform 7, and the loading and unloading mechanism is used to load and unload the PCB board.

[0033] The driving mechanism includes a driving motor 41 fixedly connected to the support frame 2. The driving motor 41 is controlled by a PLC programming program, and can be controlled to rotate forward and reverse and rotate at an angle. The output end of the driving motor 41 is fixedly connected to a driving shaft 42 through a coupling. The outer surface of the driving shaft 42 is fixedly sleeved with a first gear 43, and the outer surface of the first gear 43 is meshingly connected with a second gear 44 fixedly sleeved with the mounting tube 3.

[0034] The driving motor 41 drives the driving shaft 42 to rotate, and the driving shaft 42 drives the mounting tube 3 to rotate through the first gear 43 and the second gear 44 .

[0035] The PCB board is automatically loaded onto the flip feeding mechanism through the loading and unloading mechanism, and then the PCB board is clamped and fixed by the flip feeding mechanism on the connecting frame 5, and then the installation tube 3 and the first installation box 4 are driven to rotate by the driving mechanism, and the first installation box 4 drives the connecting frame 5 to rotate, and the connecting frame 5 drives the PCB board on the flip feeding mechanism to rotate, so that it rotates to the position of the inkjet printer 6, and then the PCB board is transported to the inkjet printer 6 through the flip feeding mechanism, and then the surface of the PCB board is printed by the inkjet printer 6. When one side of the printing is completed, the flip feeding mechanism then removes the PCB board from the inkjet printer 6, and then the PCB board is automatically flipped. After flipping, the flipped PCB board is automatically sent to the inkjet printer 6 for printing, and then the PCB board is automatically fed into the inkjet printer 6 for printing. The automatic printing on both sides of the PCB board is realized, which greatly improves the efficiency of the printing on the PCB board. At the same time, during the printing process, the PCB board is automatically loaded and unloaded by the loading and unloading mechanism, and then the mounting tube 3 and the first mounting box 4 are driven to rotate by the driving mechanism, so that the printed PCB board is rotated to the loading and unloading mechanism for unloading. At this time, the surface of the printed PCB board is dried by the blowing and drying mechanism on the connecting frame, so that the ink after printing is more solid, thereby further improving the effect of the printing on the PCB board, and then the dried PCB board is automatically unloaded, and then the new PCB board is automatically loaded and unloaded, thereby realizing the dual-station simultaneous printing processing on both sides of the PCB board, which greatly improves the printing efficiency and printing effect of the PCB board.

[0036] Embodiment 2

[0037] Based on Example 1, please refer to Figure 2-Figure 7As shown, the flip feeding mechanism includes two transmission threaded rods 11 rotatably connected to the connecting frame 5, and the two transmission threaded rods 11 are connected by a transmission wheel and a transmission belt. One end of one of the transmission threaded rods 11 is fixedly connected to a transmission motor 12 fixedly connected to the connecting frame 5 through a coupling, and the outer surface of the transmission threaded rod 11 is threadedly matched with a transmission plate 13, and a transmission groove 14 is provided on the transmission plate 13. A second installation box 15 is fixedly connected in the transmission groove 14, and a positive and negative threaded rod 16 is rotatably connected in the second installation box 15. The outer surface of the positive and negative threaded rod 16 is threadedly matched with two clamping boxes 17 slidably connected to the transmission groove 14, and the outer surface of the positive and negative threaded rod 16 is transmission-connected to a first transmission mechanism connected to the second installation box 15, and a mounting shaft 18 is rotatably connected in the clamping box 17, and one end of the mounting shaft 18 is fixedly connected to a clamping plate 19, and the outer surface of the mounting shaft 18 is transmission-connected to a second transmission mechanism connected to the clamping box 17.

[0038] The first transmission mechanism includes a first motor 21 fixedly connected to the second installation box 15. The first motor 21 is controlled by a PLC programming program, and can be controlled to rotate forward and reverse and rotate at an angle. The output end of the first motor 21 is fixedly connected to a first rotating shaft 22 rotatably connected to the second installation box 15 through a coupling. A first bevel gear 23 is fixedly sleeved on the outer surface of the first rotating shaft 22, and a second bevel gear 24 fixedly sleeved on the outer surface of the first bevel gear 23 is meshingly connected to a second bevel gear 24 fixedly sleeved on the forward and reverse threaded rods 16.

[0039] The first motor 21 drives the first rotating shaft 22 to rotate, and the first rotating shaft 22 drives the forward and reverse threaded rod 16 to rotate through the first bevel gear 23 and the second bevel gear 24 .

[0040] The second transmission mechanism includes an electric telescopic rod 31 fixedly connected to the clamping box 17, one end of the electric telescopic rod 31 is fixedly connected to a transmission rack 32 slidably connected to the clamping box 17, and one side of the transmission rack 32 is meshedly connected to a transmission gear 33 fixedly sleeved on the mounting shaft 18.

[0041] The electric telescopic rod 31 drives the transmission rack 32 to move, and the transmission rack 32 drives the transmission gear 33 and the installation shaft 18 to rotate.

[0042] A rubber buffer pad 190 is fixedly connected to one side of the clamping plate 19 .

[0043] The PCB board is placed between the two clamping plates 19 in the connecting frame 5 through the loading and unloading mechanism, and then the positive and negative threaded rods 16 are driven to rotate through the first transmission mechanism, and the positive and negative threaded rods 16 drive the two clamping boxes 17 to approach each other, and the two clamping boxes 17 drive the installation shaft 18 and the clamping plate 19 to approach each other to clamp and fix the PCB board, thereby clamping and fixing PCB boards of different sizes. After clamping and fixing, the installation tube 3 and the first installation box 4 are driven to rotate through the driving mechanism, and the first installation box 4 drives the connecting frame 5 to rotate, so that the clamped PCB board is rotated to the position of the inkjet printer 6, and then the transmission threaded rod 11 is driven to rotate through the transmission motor 12, and the transmission threaded rod 11 drives the transmission plate 13 and the clamping box 17 to move, so that the clamped PC The B board enters the inkjet printer 6 for inkjet printing. After the printing is completed, the transmission motor 12 drives the transmission threaded rod 11 to rotate in the opposite direction, so that the PCB board is moved out of the inkjet printer 6. After moving out, the second transmission mechanism drives the installation shaft 18 to rotate, and the installation shaft 18 drives the clamping plate 19 to rotate, thereby driving the clamped PCB board to rotate and flip the PCB board. After flipping, the transmission motor 12 drives the transmission threaded rod 11 to rotate again and drives the clamping box 17 to move, and the PCB board is sent to the inkjet printer 6 for printing, thereby realizing automatic flipping and automatic feeding of the PCB board during the printing process of the PCB board, greatly improving the automation degree of the printing of the PCB board, and further improving the printing efficiency of the PCB board.

[0044] Embodiment 3

[0045] Based on Example 2, please refer to Figure 1 , Figure 3 and Figure 4 As shown, the blowing and drying mechanism includes a first connecting pipe 51 fixedly connected to the first installation box 4, an electromagnetic valve is arranged on the first connecting pipe 51, the outer surface of the first connecting pipe 51 is fixedly connected to a plurality of blowing boxes 52 fixedly connected to the connecting frame 5 through a pipeline, a blowing hood 53 is fixedly connected to one side of the blowing box 52, and one end of the installation pipe 3 is rotatably connected to an air supply mechanism connected to the support frame 2.

[0046] The air supply mechanism includes a hot air blower 54 fixedly connected to the support frame 2 , and an output end of the hot air blower 54 is fixedly connected to a second connecting pipe 55 rotatably connected to the mounting pipe 3 through a pipeline, and the second connecting pipe 55 is fixedly connected to the support frame 2 .

[0047] After the PCB board is printed, the driving mechanism drives the installation tube 3 and the first installation box 4 to rotate, and the first installation box 4 drives the connecting frame 5 to rotate, so that the printed PCB board is rotated to the loading station position. At this time, the transmission threaded rod 11 is driven by the transmission motor 12 to rotate, and the transmission threaded rod 11 drives the transmission plate 13 and the clamping box 17 to move to the position of the first installation box 4. At this time, the installation tube 3 is supplied with air through the air supply mechanism, and the installation tube 3 supplies hot air into the first connecting tube 51 through the first installation box 4. Then the electromagnetic valve 51 on the corresponding first connecting tube is opened, and the hot air passes through the first connecting tube 5 1 and the pipeline enter into the blowing box 52, and then the blowing box 52 uses the blowing cover 53 to dry the top and bottom surfaces of the printed PCB with hot air, so as to realize timely drying of the surface of the printed PCB, improve the firmness of the ink after printing, and further improve the quality of printing on the PCB. After drying, it is moved to the loading and unloading position for automatic unloading. After unloading, the PCB is loaded through the loading and unloading mechanism. After loading, the above actions are repeated to blow air on the surface of the PCB to blow away the dust and debris on the surface, so as to realize automatic cleaning of the dust on the surface of the PCB before printing.

[0048] The loading and unloading mechanism includes a robotic arm 61 fixedly connected to the mounting platform 7, the output end of the robotic arm 61 is fixedly connected to a vacuum tube 62, the outer surface of the vacuum tube 62 is fixedly connected to a plurality of vacuum suction cups 63, the outer surface of the vacuum tube 62 is fixedly connected to a vacuum pump connected to the mounting platform 7 through a hose, and the top of the mounting platform 7 is fixedly connected to two belt conveyors 64.

[0049] The vacuum tube 62 and the vacuum suction cup 63 are driven by the mechanical arm 61 to move, so that they are moved to the PCB board on the belt conveyor 64, and then the PCB board is adsorbed and grabbed by the vacuum suction cup 63, and then the grabbed PCB board is sent to the clamping plate 19 position in the connecting frame 5 by the mechanical arm 61, and then clamped and fixed by the clamping plate 19, so as to realize automatic loading and unloading of the PCB board. At the same time, when the PCB board is printed, the vacuum tube 62 and the vacuum suction cup 63 are driven by the mechanical arm 61 to move, and the PCB board clamped and printed in the connecting frame 5 is grabbed, and then it is moved to the belt conveyor 64 for transportation, so as to realize automatic loading and unloading of the PCB board.

[0050] The working principle of the present invention is as follows: the PCB board is placed between the two clamping plates 19 in the connecting frame 5 through the loading and unloading mechanism, and then the positive and negative threaded rods 16 are driven to rotate through the first transmission mechanism, and the positive and negative threaded rods 16 drive the two clamping boxes 17 to approach each other, and the two clamping boxes 17 drive the installation shaft 18 and the clamping plates 19 to approach each other to clamp and fix the PCB board, thereby clamping and fixing PCB boards of different sizes. After clamping and fixing, the installation tube 3 and the first installation box 4 are driven to rotate through the driving mechanism, and the first installation box 4 drives the connecting frame 5 to rotate, so that the clamped PCB board is rotated to the position of the inkjet printer 6, and then the transmission threaded rod 11 is driven to rotate through the transmission motor 12, and the transmission threaded rod 11 drives the transmission plate 13 and the clamping box 17 to move, so that The clamped PCB board enters the inkjet printer 6 for inkjet printing. After the printing is completed, the transmission motor 12 drives the transmission threaded rod 11 to rotate in the opposite direction, so that the PCB board is moved out of the inkjet printer 6. After moving out, the second transmission mechanism drives the installation shaft 18 to rotate, and the installation shaft 18 drives the clamping plate 19 to rotate, thereby driving the clamped PCB board to rotate and flip the PCB board. After flipping, the transmission motor 12 drives the transmission threaded rod 11 to rotate again and drives the clamping box 17 to move, and the PCB board is sent to the inkjet printer 6 for inkjet printing, thereby realizing automatic flipping and automatic feeding of the PCB board during the printing process of the PCB board, greatly improving the automation degree of inkjet printing of the PCB board, and further improving the inkjet printing efficiency of the PCB board.

[0051] After the PCB board is printed, the driving mechanism drives the installation tube 3 and the first installation box 4 to rotate, and the first installation box 4 drives the connecting frame 5 to rotate, so that the printed PCB board is rotated to the loading station position. At this time, the transmission threaded rod 11 is driven by the transmission motor 12 to rotate, and the transmission threaded rod 11 drives the transmission plate 13 and the clamping box 17 to move to the position of the first installation box 4. At this time, the installation tube 3 is supplied with air through the air supply mechanism, and the installation tube 3 supplies hot air into the first connecting tube 51 through the first installation box 4. Then the electromagnetic valve 51 on the corresponding first connecting tube is opened, and the hot air passes through the first connecting tube 5 1 and the pipeline enter into the blowing box 52, and then the blowing box 52 uses the blowing cover 53 to dry the top and bottom surfaces of the printed PCB with hot air, so as to realize timely drying of the surface of the printed PCB, improve the firmness of the ink after printing, and further improve the quality of printing on the PCB. After drying, it is moved to the loading and unloading position for automatic unloading. After unloading, the PCB is loaded through the loading and unloading mechanism. After loading, the above actions are repeated to blow air on the surface of the PCB to blow away the dust and debris on the surface, so as to realize automatic cleaning of the dust on the surface of the PCB before printing.

[0052] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An automatic plate turning machine for printing PCB boards, comprising a support plate (1), characterized in that: The top of the support plate (1) is fixedly connected to a support frame (2), two mounting tubes (3) are rotatably connected inside the support frame (2), a first mounting box (4) is fixedly connected between the two mounting tubes (3), a plurality of connecting frames (5) are fixedly connected to the outer surface of the first mounting box (4), a flipping feeding mechanism is arranged inside the connecting frame (5), and the flipping feeding mechanism is used to clamp and flip the PCB board; Two inkjet printers (6) are fixedly connected inside the support frame (2); the outer surface of the mounting tube (3) is transmission-connected with a driving mechanism connected to the support frame (2); the driving mechanism is used to drive the mounting tube (3) to rotate; the connecting frame (5) is provided with a blowing and drying mechanism connected to the first mounting box (4); the blowing and drying mechanism is used to clean dust on the surface of the PCB and dry the PCB board after printing; the support plate (1) is fixedly connected with a mounting platform (7); the mounting platform (7) is provided with a loading and unloading mechanism; the loading and unloading mechanism is used to load and unload the PCB board; The overturning feeding mechanism comprises two transmission threaded rods (11) rotatably connected to the connecting frame (5), the two transmission threaded rods (11) are connected to each other through a transmission wheel and a transmission belt, one end of one of the transmission threaded rods (11) is fixedly connected to a transmission motor (12) fixedly connected to the connecting frame (5) through a coupling, the outer surface of the transmission threaded rod (11) is threadedly matched with a transmission plate (13), the transmission plate (13) is provided with a transmission groove (14), a second installation box (15) is fixedly connected in the transmission groove (14), and the second installation box (15) is fixedly connected in the transmission groove (14), and the second installation box (15) is fixedly connected in the transmission groove (14). A forward and reverse threaded rod (16) is rotatably connected inside the packaging box (15); the outer surface of the forward and reverse threaded rod (16) is threadedly matched with two clamping boxes (17) slidably connected to the transmission groove (14); the outer surface of the forward and reverse threaded rod (16) is transmission-connected to a first transmission mechanism connected to the second installation box (15); a mounting shaft (18) is rotatably connected inside the clamping box (17); one end of the mounting shaft (18) is fixedly connected to a clamping plate (19); the outer surface of the mounting shaft (18) is transmission-connected to a second transmission mechanism connected to the clamping box (17); The first transmission mechanism comprises a first motor (21) fixedly connected to the second installation box (15); an output end of the first motor (21) is fixedly connected to a first rotating shaft (22) rotatably connected to the second installation box (15) via a coupling; a first bevel gear (23) is fixedly sleeved on an outer surface of the first rotating shaft (22); and a second bevel gear (24) is meshingly connected to an outer surface of the first bevel gear (23) fixedly sleeved on a forward and reverse threaded rod (16); The second transmission mechanism comprises an electric telescopic rod (31) fixedly connected to the clamping box (17), one end of the electric telescopic rod (31) being fixedly connected to a transmission rack (32) slidably connected to the clamping box (17), and one side of the transmission rack (32) being meshingly connected to a transmission gear (33) fixedly sleeved on the mounting shaft (18).

2. The automatic plate turning machine for PCB printing according to claim 1 is characterized in that: A rubber buffer pad (190) is fixedly connected to one side of the clamping plate (19).

3. The automatic plate turning machine for PCB printing according to claim 1 is characterized in that: The driving mechanism comprises a driving motor (41) fixedly connected to the support frame (2); the output end of the driving motor (41) is fixedly connected to a driving shaft (42) via a coupling; a first gear (43) is fixedly sleeved on the outer surface of the driving shaft (42); and the outer surface of the first gear (43) is meshingly connected to a second gear (44) fixedly sleeved on the mounting tube (3).

4. The automatic plate turning machine for PCB printing according to claim 1 is characterized in that: The blowing and drying mechanism comprises a first connecting pipe (51) fixedly connected to a first installation box (4), an electromagnetic valve being arranged on the first connecting pipe (51), a plurality of blowing boxes (52) fixedly connected to a connecting frame (5) being fixedly connected to the outer surface of the first connecting pipe (51) via a pipeline, a blowing hood (53) being fixedly connected to one side of the blowing box (52), and an air supply mechanism connected to the support frame (2) being rotatably connected to one end of the installation pipe (3).

5. The automatic plate turning machine for PCB printing according to claim 4 is characterized in that: The air supply mechanism comprises a hot air blower (54) fixedly connected to the support frame (2); an output end of the hot air blower (54) is fixedly connected to a second connecting pipe (55) rotatably connected to the mounting pipe (3) via a pipeline; and the second connecting pipe (55) is fixedly connected to the support frame (2).

6. The automatic plate turning machine for PCB printing according to claim 1 is characterized in that: The loading and unloading mechanism comprises a mechanical arm (61) fixedly connected to a mounting platform (7); an output end of the mechanical arm (61) is fixedly connected to a vacuum tube (62); an outer surface of the vacuum tube (62) is fixedly connected to a plurality of vacuum suction cups (63); an outer surface of the vacuum tube (62) is fixedly connected to a vacuum pump connected to the mounting platform (7) via a hose; and two belt conveyors (64) are fixedly connected to the top of the mounting platform (7).

Images