Streamline production and space-saving printing machine

Abstract

The invention relates to the technical field of circuit board production, in particular to a streamline production and space-saving printing machine. The printing machine comprises a rack, a feeding position, a printing position, a discharging position, a conveying table top, a printing assembly, a multi-stage telescopic mechanism and a connecting plate. The conveying table top comprises an upper table top and a lower table top, and an upper driving assembly and a lower driving assembly are mounted on the rack; the feeding position is provided with a first upper limiting piece and a first lower limiting piece. The printing position is provided with a second upper limiting piece and a second lower limiting piece; a moving track horizontally extending in the moving direction of the PCB is arranged above the rack, and the multi-stage telescopic mechanism is installed on the moving track. The printing assembly is arranged on the rack and located above the printing position. The connecting plate is used for connecting the upper table top and the lower table top. The technical problems that in the prior art, the printing process of intermittent printed PCBs is discontinuous, equipment operation needs to be waited for a long time in the machining process, and consequently the machining period of the PCBs is long are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of circuit board manufacturing technology, and more particularly to a streamlined and space-saving printing machine. Background Technology

[0002] A PCB (Printed Circuit Board) is the core carrier supporting electronic components and providing electrical connections. By cleverly integrating precise structures such as wires, pads, and vias onto an insulating substrate, it constructs a complex yet orderly electrical network between components. This not only enables precise wiring between components but also ensures the stability and reliability of signals during high-speed transmission. This highly integrated design makes PCBs an indispensable component of modern electronic products, used in numerous fields such as communications, computers, and consumer electronics.

[0003] Currently, most PCB printing equipment adopts a single-piece flow production model, meaning that the printing equipment can only put one PCB board to be printed into the machine at a time. After printing, it is removed before the next PCB board to be printed is put in. This intermittent operation method requires operators to wait for a long time during the printing process, resulting in discontinuous PCB printing and frequent interruptions to the overall production rhythm. This inefficient operation mode not only prolongs the PCB processing cycle but also increases labor and time costs. Summary of the Invention

[0004] This invention provides a streamlined and space-saving printing machine to solve the technical problem of discontinuous printing process and long processing cycle of PCB boards caused by intermittent printing in the prior art, which requires long waiting time for the equipment to run.

[0005] To solve the above problems, the streamlined and space-saving printing press provided by this invention adopts the following technical solution: A streamlined and space-saving printing machine includes a frame, which has a loading station, a printing station, a unloading station, a conveyor table, a printing assembly, a multi-stage telescopic mechanism, and a connecting plate. The conveying table includes an upper table and a lower table located between the loading position and the printing position for conveying PCB boards. The frame is equipped with an upper drive assembly for driving the upper table to reciprocate and a lower drive assembly for driving the lower table to reciprocate. The end of the feeding position away from the printing position has a first upper limit member for blocking the upper table surface and a first lower limit member for blocking the lower table surface; The printing position has a second upper limit member for blocking the upper table surface and a second lower limit member for blocking the lower table surface at one end away from the feeding position; The multi-stage telescopic mechanism is arranged above the frame along the PCB board moving direction to grip the printed PCB board. The printing assembly is mounted on the frame and located above the printing position, and includes a screen and an automatic screen positioning mechanism. The connecting plate is used to connect the upper platform and the lower platform after the position adjustment is completed at the feeding position, and to separate the upper platform and the lower platform after the position adjustment is completed at the printing position.

[0006] The advantages of the streamlined and space-saving printing press provided by this invention are: 1. By setting up an upper and lower table with intervals, the upper and lower tables can be operated alternately. That is, when the PCB board on the upper table is being printed at the printing position, the lower table is simultaneously being loaded at the feeding position. When the PCB board on the upper table is finished being printed, a new PCB board to be printed is placed on the lower table, and then it is moved to the printing position for printing, thus ensuring that the printing machine can continuously feed and print PCB boards.

[0007] 2. By setting a first upper limit component at the loading position, the movement of the upper table surface away from the printing position can be restricted, preventing excessive displacement of the upper table surface and misalignment between the upper table surface and the PCB board. This avoids the PCB board not being accurately placed on the upper table surface and the multi-stage telescopic mechanism not being able to accurately grasp the PCB board on the upper table surface due to misalignment. Similarly, by setting a first lower limit component at the unloading position, the movement of the lower table surface away from the printing position can be restricted, preventing excessive displacement of the lower table surface and misalignment between the lower table surface and the PCB board. This avoids the PCB board not being accurately placed on the lower table surface and the multi-stage telescopic mechanism not being able to accurately grasp the PCB board on the lower table surface due to misalignment. Likewise, the second upper limit component and the second lower limit component at the printing position can prevent excessive movement of the upper and lower table surfaces away from the loading position at the printing position.

[0008] 3. By setting up a connecting plate, after the upper and lower tables have been calibrated separately at the loading position, they can be connected as a whole using the connecting plate and then moved synchronously to the printing position for calibration. At this time, the position of the lower table can be calibrated at the same time as the upper table, which greatly shortens the adjustment and calibration time of the upper and lower tables at the printing position, thereby shortening the PCB board processing cycle. After the upper and lower tables have been adjusted at the printing position, the connecting plate can be removed to separate the upper and lower tables, so that the upper and lower tables can move independently during the subsequent operation of the printing machine. 4. By providing a moving track extending horizontally along the PCB board moving direction above the frame, and setting up a multi-stage telescopic mechanism on the moving track, the machine can grab the printed PCB board that has been transported back to the loading position and transport the printed PCB board to the unloading position. The multi-stage telescopic mechanism can extend downward when grabbing and putting down the printed PCB board to facilitate the grabbing of the printed PCB board, and retract upward during transportation to avoid interference with the printing position during transportation.

[0009] Through the above-mentioned design, the present invention effectively solves the technical problem in the prior art that the printing process of intermittent printed PCBs is discontinuous, and the processing requires a long waiting time for the equipment to run, resulting in a long processing cycle for PCBs.

[0010] Furthermore, a moving track extending along the moving direction of the PCB board is provided above the frame, and a first driving mechanism for driving the multi-stage telescopic mechanism to move on the moving track is installed on the moving track.

[0011] Furthermore, the multi-stage telescopic mechanism is a three-stage telescopic mechanism, comprising a second drive mechanism, a first-stage base plate, a second-stage base plate, and a third-stage base plate. The second drive mechanism is connected to the first-stage base plate. The first-stage, second-stage, and third-stage base plates all extend from top to bottom and are staggered. A base plate is provided on the side of the first-stage base plate away from the second-stage base plate. The top of the base plate is fixedly connected to the base of the drive mechanism. A rack one is fixedly installed on the side of the base plate facing the first-stage base plate. A rack two is fixedly installed on the side of the first-stage base plate away from the base plate. A rack three is fixedly installed on the side of the second-stage base plate facing the first-stage base plate. A rack four is fixedly installed on the side of the third-stage base plate facing the second-stage base plate. A gear set one that meshes with rack one and rack three is installed on the first-stage base plate. A gear set two that meshes with rack two and rack four is installed on the second-stage base plate. A gripper is provided at the bottom of the third-stage base plate.

[0012] Furthermore, the second drive mechanism includes a base, a second drive motor, a first synchronous pulley, a second synchronous belt, a second synchronous pulley, and a lead screw. The second drive motor is drivenly connected to the first synchronous pulley, the top end of the lead screw is drivenly connected to the second synchronous pulley, the first synchronous pulley and the second synchronous pulley are drivenly connected via the second synchronous belt, the second drive motor, the second synchronous pulley and the lead screw are all mounted on the base, and the bottom end of the lead screw is provided with a lead screw nut top plate, which is fixedly connected to the first-stage base plate; the base plate is fixedly connected to the base; the base is mounted on the moving track.

[0013] Furthermore, the first-level base plate has linear slide rails on both vertical sides facing the substrate, and the substrate has sliding blocks that match the linear slide rails; the second-level base plate has linear slide rails on both vertical sides facing the first-level base plate, and the first-level base plate has sliding blocks that match the linear slide rails; the third-level base plate has linear slide rails on both vertical sides facing the second-level base plate, and the second-level base plate has sliding blocks that match the linear slide rails.

[0014] Furthermore, the frame is provided with a support frame, and a transverse moving component perpendicular to the conveying direction of the PCB board is provided on the support frame above the loading position. An image acquisition device is installed on the transverse moving component to collect the position information of the PCB board located on the upper and lower platforms of the loading position.

[0015] Furthermore, a dust cover is provided on the outer periphery of the printing assembly, and a telescopic structure is installed on the frame. The output end of the telescopic structure is connected to the dust cover to drive the dust cover to move up and down.

[0016] Beneficial effects: By installing a telescopic structure connected to the dust cover on the frame, the height of the dust cover can be adjusted through the telescopic structure. That is, the dust cover can be raised when inspecting or replacing the screen to provide sufficient working space for the operator, and adjusted downward to a suitable height during normal use to prevent external dust from entering the printing components.

[0017] Furthermore, the upper platform and the lower platform are provided with positioning pins corresponding to their positions, and the PCB board is provided with pin holes corresponding to the positions of the positioning pins.

[0018] Furthermore, the frame is equipped with adjusting members for adjusting the first upper limit member, the first lower limit member, the second upper limit member, and the second lower limit member.

[0019] Furthermore, the first upper limit member, the first lower limit member, the second upper limit member, and the second lower limit member are all magnets. Attached Figure Description

[0020] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 A schematic diagram of the streamlined and space-saving printing press provided by the present invention; Figure 2 for Figure 1 A magnified view of a portion of point A in the middle; Figure 3 for Figure 1 A magnified view of a portion of point B in the middle; Figure 4 for Figure 1 A magnified view of a portion of point C in the middle; Figure 5 for Figure 1 A magnified view of a portion of point D in the middle; Figure 6 A schematic diagram of the three-stage telescopic mechanism and conveyor table of the streamlined and space-saving printing machine provided by the present invention. Figure 7 This is a schematic diagram showing the arrangement of each rack and each stage of the base plate in the three-stage telescopic mechanism provided by the present invention; Figure 8 A schematic diagram of the conveyor table structure at the printing position in the streamlined production space-saving printing press provided by the present invention. Figure 9 Another structural schematic diagram of the streamlined and space-saving printing press provided by the present invention; Figure 10 for Figure 9 A magnified view of a portion of point A in the middle; Figure 11 This is another structural schematic diagram of the streamlined and space-saving printing press provided by the present invention. Figure 12 for Figure 11 A magnified view of a portion of point A in the middle; Figure 13 for Figure 11 A magnified view of a portion of point B in the middle.

[0021] Explanation of reference numerals in the attached figures: 1. Frame; 11. Support frame; 12. Moving track; 121. First drive mechanism; 1211. First drive motor; 1212. Synchronous belt 1; 1213. Support slider; 2. Loading position; 21. Horizontal movement assembly; 22. Image acquisition device; 3. Printing position; 31. Printing assembly; 311. Screen; 312. Automatic screen positioning mechanism; 32. Dust cover; 321. Telescopic structure; 33. Lifting mechanism; 331. Lifting reducer; 332. Ball screw; 333. Nut; 334. Hollow guide post; 335. Guide sleeve; 336. Drive shaft; 337. Servo motor; 4. Material unloading position; 5. Conveying table; 51. Upper table; 511. First upper limit stop; 512. Second upper limit stop; 513. Upper drive motor; 514. Upper synchronous belt; 52. Lower table; 521. First lower limit stop; 522. Second lower limit stop; 523. Lower drive motor; 524. Lower synchronous belt; 6. Three-stage telescopic mechanism; 61. First-stage telescopic assembly; 611. Rack 1; 612. First-stage base plate; 613. Gear set 1; 614. Rack 3; 62. Second-stage telescopic assembly; 621. Rack 2; 622. Second-stage base plate; 623. Gear set 2; 624. Rack 4; 63. Three-stage telescopic assembly; 631. Third-stage base plate; 632. Gripper; 64. Second drive mechanism; 641. Base; 6411. Limit stop; 642. Second drive motor; 643. Synchronous pulley 1; 644. Synchronous belt 2; 6441. Synchronous belt dust cover; 645. Synchronous pulley 2; 646. Lead screw; 647. Lead screw nut top plate; 648. Support component; 649. Bearing with seat; 65. Base plate; 66. Linear slide rail; 67. Sliding block; 68. Side plate; 69. Positioning reference block. Detailed Implementation

[0022] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0023] An embodiment of the streamlined and space-saving printing press provided by the present invention: like Figures 1 to 13 As shown, the streamlined and space-saving printing press includes a frame 1, a loading station 2, a printing station 3, a unloading station 4, a conveyor table 5, a printing assembly 31, a multi-stage telescopic mechanism, and a connecting plate. The loading station 2, printing station 3, and unloading station 4 are arranged sequentially from left to right on the frame 1.

[0024] Regarding conveyor table 5. For example... Figure 6 and Figure 8 As shown, the conveying table 5 includes an upper table 51 and a lower table 52 arranged at intervals for conveying PCB boards. An upper drive assembly for driving the upper table 51 to move horizontally and a lower drive assembly for driving the lower table 52 to move horizontally are installed on the frame 1.

[0025] In this embodiment, as Figure 6 and Figure 9 As shown, the upper drive assembly includes an upper synchronous belt 514 mounted on the frame 1 and extending horizontally along the conveying direction of the PCB board, two upper synchronous pulleys, and an upper drive motor 513. The upper synchronous belt 514 is sleeved on the two upper synchronous pulleys. The upper drive motor 513 and the two upper synchronous pulleys are both mounted on the frame 1, and the upper drive motor 513 is connected to one of the upper synchronous pulleys in a drive transmission.

[0026] In this embodiment, as Figure 9 and Figure 10 As shown, the lower drive assembly includes a lower synchronous belt 524 mounted on the frame 1 and extending horizontally along the conveying direction of the PCB board, two lower synchronous pulleys, and a lower drive motor 523. The lower synchronous belt 524 is sleeved on the two lower synchronous pulleys. The lower drive motor 523 and the two lower synchronous pulleys are both mounted on the frame 1, and the lower drive motor 523 is connected to one of the lower synchronous pulleys in a drive transmission.

[0027] In this embodiment, the upper synchronous belt 514 and the lower synchronous belt 524 are spaced apart along the width direction of the frame 1.

[0028] Regarding loading station 2. In this embodiment, as... Figure 6 As shown, the left end of the loading position 2 is provided with a first upper limit member 511 for blocking the upper platform 51 and a first lower limit member 521 for blocking the lower platform 52. The frame 1 is also provided with two adjusting members at the left end of the loading position 2, respectively for adjusting the horizontal positions of the first upper limit member 511 and the first lower limit member 521. In this embodiment, both the first upper limit member 511 and the first lower limit member 521 are magnets, and the adjusting members are adjusting bolts.

[0029] In this embodiment, the loading station 2 is equipped with a loading robot for loading PCB boards onto the upper table 51 or the lower table 52.

[0030] In this embodiment, the loading position 2 has a loading and photographing position located above the upper table 51; such as Figure 3 As shown, a support frame 11 is provided on the frame 1. A transverse moving component 21, perpendicular to the conveying direction of the PCB board, is provided on the support frame 11 above the loading position 2. An image acquisition device 22 is installed on the transverse moving component 21 to collect the position information of the PCB board located on the upper table 51 and lower table 52 of the loading position 2. In this embodiment, the transverse moving component 21 is a linear module.

[0031] Regarding printing position 3. In this embodiment, as... Figure 8 As shown, the right end of printing position 3 is provided with a second upper limit member 512 for blocking the upper platform 51 and a second lower limit member 522 for blocking the lower platform 52. The frame 1 also has two adjusting members at the right end of printing position 3, respectively used to adjust the horizontal positions of the second upper limit member 512 and the second lower limit member 522. In this embodiment, both the second upper and lower adjusting members are magnets, and the adjusting members are adjusting bolts.

[0032] Regarding multi-stage telescopic mechanisms. For example... Figure 1As shown, in this embodiment, a moving track 12 extending horizontally along the moving direction of the PCB board is provided above the frame 1. A multi-stage telescopic mechanism is installed on the moving track 12 to grip the printed PCB board. A first drive mechanism 121 for driving the multi-stage telescopic mechanism to move on the moving track 12 is installed on the moving track 12.

[0033] In this embodiment, as Figure 6 and Figure 7 As shown, the multi-stage telescopic mechanism is a three-stage telescopic mechanism 6, which includes a second drive mechanism 64, a first-stage base plate 612, a second-stage base plate 622, and a third-stage base plate 631. The second drive mechanism 64 is connected to the first-stage base plate 612. The first-stage base plate 612, the second-stage base plate 622, and the third-stage base plate 631 all extend from top to bottom and are staggered from back to front. A base plate 65 is provided on the side of the first-stage base plate 612 facing away from the second-stage base plate 622. The top of the base plate 65 is fixedly connected to the base 641 of the second drive mechanism 64. A rack 611 is fixedly installed on the side of the base plate 65 facing the first-stage base plate 612, and a rack 621 is fixedly installed on the side of the first-stage base plate 612 facing away from the base plate 65. 21. A rack three 614 is fixedly installed on the side of the secondary base plate 622 facing the primary base plate 612, and a rack four 624 is fixedly installed on the side of the tertiary base plate 631 facing the secondary base plate 622; a gear set one 613 that meshes with rack one 611 and rack three 614 is installed on the primary base plate 612, a gear set two 623 that meshes with rack two 621 and rack four 624 is installed on the secondary base plate 622, and a gripper 632 for gripping the printed PCB board is provided at the bottom of the tertiary base plate 631.

[0034] Specifically, rack 1 611, primary base plate 612, gear set 1 613 and rack 3 614 form primary telescopic assembly 61, rack 2 621, secondary base plate 622, gear set 2 623 and rack 4 624 form secondary telescopic assembly 62, and tertiary base plate 631 and gripper 632 form tertiary telescopic assembly 63.

[0035] In this embodiment, as Figure 6 As shown, a positioning reference block 69 is provided on the first-stage base plate 612 above the gear set 613, and a positioning reference block 69 is also provided on the second-stage base plate 622 above the gear set 623.

[0036] In this embodiment, as Figure 2 and Figure 6As shown, the second drive mechanism 64 includes a base 641, a second drive motor 642, a first synchronous pulley 643, a second synchronous belt 644, a second synchronous pulley 645, and a lead screw 646. The second drive motor 642 is drivenly connected to the first synchronous pulley 643, and the top end of the lead screw 646 is drivenly connected to the second synchronous pulley 645. The first synchronous pulley 643 and the second synchronous pulley 645 are drivenly connected through the second synchronous belt 644. The second drive motor 642, the second synchronous pulley 645, and the lead screw 646 are all mounted on the base 641, and the bottom end of the lead screw 646 is provided with a lead screw nut top plate 647, which is fixedly connected to the first-stage base plate 612. The base plate 65 is fixedly connected to the base 641. The base 641 is mounted on the moving track 12.

[0037] In this embodiment, as Figure 2 As shown, a synchronous belt dust cover 6441 is provided on the outer periphery of the synchronous belt 644.

[0038] The working principle of the three-stage telescopic mechanism 6 is explained below using the upward retraction of the three-stage telescopic mechanism 6 as an example: When the second drive mechanism 64 drives the lead screw 646 to rotate, causing the lead screw nut top plate 647 to move upward, it simultaneously drives the first-stage base plate 612 and gear set 1 613 in the first-stage telescopic assembly 61 and the rack 2 621 in the second-stage telescopic assembly 62 to move upward. At this time, since rack 1 611 meshes with gear set 1 613, it will drive gear set 1 613 to rotate during the upward movement. The rotation of gear set 1 613 will drive rack 3 614, which meshes with it, to move upward, thereby driving the second-stage base plate 622 and gear set 2 623 in the second-stage telescopic assembly 62 to move upward. At this time, since rack 2 621 meshes with gear set 2 623, it will drive gear set 2 623 to rotate during the upward movement. The rotation of gear set 2 623 will drive rack 4 624, which meshes with it, to move upward, thereby driving the three-stage telescopic assembly 63 to move upward and retract.

[0039] In this embodiment, as Figure 2 As shown, an inverted U-shaped support member 648 is installed on the base 641. A seated bearing 649 is installed on the top surface of the support member 648. The top end of the lead screw 646 passes through the second synchronous pulley 645 and is installed inside the seated bearing 649. When the second drive motor 642 drives the first synchronous pulley 643 to rotate, the second synchronous belt 644 and the second synchronous pulley 645 rotate synchronously under the drive of the first synchronous pulley 643, thereby driving the lead screw 646 to rotate. This causes the lead screw nut top plate 647 to move upward or downward along the lead screw 646, thereby driving the first-stage base plate 612 to rise or fall. In this embodiment, the lead screw 646 is a ground ball screw.

[0040] In this embodiment, as Figure 7As shown, the first-level base plate 612 has two vertical sides facing the base plate 65 with linear slide rails 66, and the base plate 65 has sliding blocks 67 that match the linear slide rails 66; the second-level base plate 622 has two vertical sides facing the first-level base plate 612 with linear slide rails 66, and the first-level base plate 612 has sliding blocks 67 that match the linear slide rails 66; the third-level base plate 631 has two vertical sides facing the second-level base plate 622 with linear slide rails 66, and the second-level base plate 622 has sliding blocks 67 that match the linear slide rails 66.

[0041] In this embodiment, as Figure 6 As shown, side plates 68 are provided on both sides of the substrate 65, the left and right sides of the primary base plate 612, the left and right sides of the secondary base plate 622, and the left and right sides of the tertiary base plate.

[0042] In this embodiment, as Figure 1 As shown, the first drive mechanism 121 includes a first drive motor 1211, a timing belt 1212, a first timing pulley, and a second timing pulley. The first drive motor 1211 is mounted on the support frame 11 and located at the left end of the support frame 11. The output end of the first drive motor 1211 is connected to the first timing pulley for transmission. The second timing pulley is mounted on the support frame 11 and located at the right end of the support frame 11. The timing belt 1212 is sleeved on the outer periphery of the first timing pulley and the second timing pulley. The base 641 is mounted on the timing belt 1212.

[0043] In this embodiment, as Figure 12 As shown, support sliders 1213 are provided on the front and rear sides of the bottom surface of the base 641. The bottom of the support sliders 1213 is slidably mounted on the movable slide rail. When the first drive mechanism 121 works, it drives the three-stage telescopic mechanism 6 to move. At the same time, the support sliders 1213 move on the movable slide rail.

[0044] In this embodiment, as Figure 12 and Figure 13 As shown, limit stops 6411 are provided at both the left and right ends of the support frame 11 to assist in positioning the base 641. That is, when the base 641 moves to the left to the designated position, the limit stop 6411 at the left end of the support frame 11 prevents the base 641 from moving to the left. When the base 641 moves to the right to the designated position, the limit stop 6411 at the right end of the support frame prevents the base 641 from moving to the right.

[0045] In this embodiment, an adjusting member is provided at each of the left and right ends of the support frame 11 to adjust the position of the magnet on the support frame 11. In this embodiment, the adjusting member is an adjusting bolt.

[0046] Regarding printed component 31. For example... Figure 4As shown, the printing assembly 31 is mounted on the frame 1 and located above the printing position 3. It includes a screen 311 and an automatic screen positioning mechanism 312. The automatic screen positioning mechanism 312 is connected to the screen 311 for fine-tuning the position of the screen 311. In this embodiment, a dust cover 32 is provided around the outer periphery of the printing assembly 31. A telescopic structure 321 is mounted on the support frame 11. The output end of the telescopic structure 321 is connected to the dust cover 32 for driving the dust cover 32 to move up and down. In this embodiment, the telescopic structure 321 is a cylinder.

[0047] In this embodiment, as Figure 1 , Figure 5 and Figure 9 As shown, four lifting mechanisms 33 are provided at the four feet of the printing position 3 on the frame 1. The four lifting mechanisms 33 are respectively connected to the four corners of the printing assembly 31 to drive the printing assembly 31 to lift. The lifting mechanism 33 includes a lifting reducer 331 mounted on the frame 1. A ball screw 332 is connected to the top of the lifting reducer 331. A nut 333 is also provided at the bottom of the ball screw 332. A hollow guide post 334 is provided outside the ball screw 332. A guide sleeve 335 is provided outside the hollow guide post 334. The top of the hollow guide post 334 is connected to the frame of the screen 311. The four lifting reducers 331 are connected to each other through a drive shaft 336 to ensure the synchronicity of the operation of the four lifting reducers 331. The drive shaft 336 is also connected to a servo motor 337. In use, the servo motor 337 drives the transmission shaft 336 to rotate, thereby driving the four lifting reducers 331 to rotate synchronously. At the same time, the lifting reducers 331 drive the ball screw 332 connected to them to rotate. The nut 333 installed on the ball screw 332 moves upward with the rotation of the ball screw 332, thereby driving the hollow guide post 334 to move upward, thus causing the mesh plate 311 to move upward.

[0048] Furthermore, the streamlined and space-saving printing press provided in this application also includes a connecting plate. The connecting plate is used to connect the upper table 51 and the lower table 52 after the position adjustment in the loading position 2, so that when both the upper table 51 and the lower table 52 are in the printing position 3, the upper table 51 and the lower table 52 are a whole. At this time, only the position of the upper table 51 needs to be adjusted to achieve synchronous adjustment of the positions of the upper table 51 and the lower table 52, thereby saving the time of adjustment of the upper table 51 and the lower table 52 in the printing position 3. After the upper table 51 and the lower table 52 have completed the position adjustment in the printing position 3, the connecting plate can be removed to separate the upper table 51 and the lower table 52, thereby realizing the individual movement of the upper table 51 and the lower table 52.

[0049] It should be noted that, in this embodiment, the upper platform 51 and the lower platform 52 are provided with positioning pins corresponding to their positions, and the PCB board is provided with pin holes corresponding to the positions and sizes of the positioning pins. When loading at position 2, the position of the upper platform 51 is adjusted by fitting the pin holes on the PCB board onto the pin shaft of the upper platform 51, and the position of the lower platform 52 is adjusted by fitting the pin holes on the PCB board onto the pin shaft of the lower platform 52.

[0050] In this embodiment, the upper drive motor 513, the lower drive motor 523, the transverse component 21, the image acquisition unit 22, the second drive motor 642, the first drive motor 1211, the automatic positioning mechanism of the mesh plate 312, and the telescopic structure 321 are all connected to the controller signal.

[0051] The working principle of the streamlined and space-saving printing press provided by this invention is as follows: First, the upper drive motor 513 is controlled to move the upper platform 51 to the loading position 2. The loading robot places the PCB board at the loading photo position. The image acquisition device 22 collects the positions of the four reference points of the PCB board at the loading photo position and feeds the collected information back to the controller. Then, the position of the first upper limit member 511 is adjusted by adjusting the bolts so that it abuts against the left side of the upper platform 51. The position of the upper platform 51 is then finely adjusted until the pin hole on the PCB board corresponds to the positioning pin on the upper platform 51. After the adjustment is completed, the upper drive motor 513 moves the upper platform 51 to the right. Following the above steps, the position adjustment of the lower platform 52 at the loading position 2 and the position adjustment of the first lower limit member 521 are completed.

[0052] Then, the upper platform 51 is moved to the printing position 3. The controller controls the automatic positioning mechanism 312 of the stencil to automatically adjust the position of the stencil 311 according to the position information of the four reference points of the PCB board. After the adjustment is completed, the position of the second upper limit member 512 is adjusted by adjusting the bolts so that the second upper limit member 512 abuts against the right side of the upper platform 51.

[0053] Then, the upper platform 51 is moved to the loading position 2, and the left side of the upper platform 51 abuts against the first upper limit member 511. At the same time, the left side of the lower platform 52 abuts against the left side of the first lower limit member 521. Then, the upper platform 51 and the lower platform 52 are connected by a connecting plate, so that the upper platform 51 and the lower platform 52 are connected as a whole.

[0054] Next, the upper platform 51 and the lower platform 52, which are connected as a whole, are moved synchronously to the printing position 3 by the upper drive motor 513 or the lower drive motor 523, so that the second upper limit member 512 abuts against the right side of the upper platform 51. At this time, the lower platform 52 has been adjusted into position at the printing position 3. The position of the second lower limit member 522 is adjusted by adjusting the bolts so that the second lower limit member 522 abuts against the right side of the lower platform 52, thereby completing the position adjustment of the upper platform 51 and the lower platform 52 at the printing position 3. After the position adjustment is completed, the connecting plate is removed to separate the upper platform 51 and the lower platform 52.

[0055] Then, the upper table 51 and the lower table 52 alternate between the loading position 2 and the printing position 3. That is, when the PCB board on the upper table 51 is printed at the printing position 3, the lower table 52 is simultaneously loading at the loading position 2. When the PCB board on the upper table 51 is finished printing, the lower table 52 has placed a new PCB board to be printed and then moves to the printing position 3 for printing. The upper table 51 then moves to the loading position 2 with the printed PCB board, thus ensuring that the printing machine can continuously load and print PCB boards.

[0056] When the upper table 51 moves to the loading position 2 with the printed PCB board, the second drive motor 642 drives the first synchronous wheel 643 to rotate, which in turn drives the second synchronous belt 644 and the second synchronous wheel 645 to rotate, thereby driving the lead screw 646 to rotate. As the lead screw 646 rotates, the lead screw nut top plate 647 moves upward along the lead screw 646, which in turn drives the first telescopic component 61, the second telescopic component 62 and the third telescopic component 63 to move upward and retract in sequence, so as to remove the printed PCB board from the upper table 51. When the third telescopic mechanism 6 retracts to its minimum size, it moves from left to right under the drive of the first drive motor 1211 until it moves to the unloading position 4.

[0057] After the three-stage telescopic mechanism 6 moves to the unloading position 4, the second drive motor 642 rotates in the opposite direction, causing the lead screw nut top plate 647 to move downward along the lead screw 646. This sequentially drives the first-stage telescopic component 61, the second-stage telescopic component 62, and the third-stage telescopic component 63 to extend downward. After the printed PCB board is placed into the unloading position 4, the second drive motor 642 drives the lead screw 646 to rotate, causing the lead screw nut top plate 647 to move upward along the lead screw 646. This sequentially drives the first-stage telescopic component 61, the second-stage telescopic component 62, and the third-stage telescopic component 63 to move upward and retract. When the three-stage telescopic mechanism 6 retracts to its minimum size, it moves from right to left under the drive of the first drive motor 1211 until it moves to the loading position 2, ready to grab the next printed PCB board.

[0058] Based on the above description in this specification, those skilled in the art will also understand that the following terms, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0059] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A streamlined and space-saving printing press, characterized in that, It includes a frame, which contains a loading station, a printing station, a unloading station, a conveyor table, printing components, a multi-stage telescopic mechanism, and a connecting plate; The conveying table includes an upper table and a lower table located between the loading position and the printing position for conveying PCB boards. The frame is equipped with an upper drive assembly for driving the upper table to reciprocate and a lower drive assembly for driving the lower table to reciprocate. The end of the feeding position away from the printing position has a first upper limit member for blocking the upper table surface and a first lower limit member for blocking the lower table surface; The printing position has a second upper limit member for blocking the upper table surface and a second lower limit member for blocking the lower table surface at one end away from the feeding position; The multi-stage telescopic mechanism is arranged above the frame along the PCB board moving direction to grip the printed PCB board. The printing assembly is mounted on the frame and located above the printing position, and includes a screen and an automatic screen positioning mechanism. The connecting plate is used to connect the upper platform and the lower platform after the position adjustment is completed at the feeding position, and to separate the upper platform and the lower platform after the position adjustment is completed at the printing position.

2. The streamlined and space-saving printing press according to claim 1, characterized in that, The frame is provided with a moving track extending along the moving direction of the PCB board, and a first driving mechanism for driving the multi-stage telescopic mechanism to move on the moving track is installed on the moving track.

3. The streamlined and space-saving printing press according to claim 2, characterized in that, The multi-stage telescopic mechanism is a three-stage telescopic mechanism, comprising a second drive mechanism, a first-stage base plate, a second-stage base plate, and a third-stage base plate. The second drive mechanism is connected to the first-stage base plate. The first-stage, second-stage, and third-stage base plates extend from top to bottom and are staggered. A base plate is provided on the side of the first-stage base plate away from the second-stage base plate. The top of the base plate is fixedly connected to the base of the drive mechanism. A rack one is fixedly installed on the side of the base plate facing the first-stage base plate. A rack two is fixedly installed on the side of the first-stage base plate away from the base plate. A rack three is fixedly installed on the side of the second-stage base plate facing the first-stage base plate. A rack four is fixedly installed on the side of the third-stage base plate facing the second-stage base plate. A gear set one that meshes with rack one and rack three is installed on the first-stage base plate. A gear set two that meshes with rack two and rack four is installed on the second-stage base plate. A gripper is provided at the bottom of the third-stage base plate.

4. The streamlined and space-saving printing press according to claim 3, characterized in that, The second drive mechanism includes a base, a second drive motor, a first synchronous pulley, a second synchronous belt, a second synchronous pulley, and a lead screw. The second drive motor is driven by the first synchronous pulley, and the top end of the lead screw is driven by the second synchronous pulley. The first synchronous pulley and the second synchronous pulley are driven by the second synchronous belt. The second drive motor, the second synchronous pulley, and the lead screw are all mounted on the base, and the bottom end of the lead screw is provided with a lead screw nut top plate, which is fixedly connected to the first-stage base plate. The base plate is fixedly connected to the base, and the base is mounted on the moving track.

5. The streamlined and space-saving printing press according to claim 3, characterized in that, The first-level base plate has linear slide rails on both vertical sides facing the substrate, and the substrate has sliding blocks that match the linear slide rails; the second-level base plate has linear slide rails on both vertical sides facing the first-level base plate, and the first-level base plate has sliding blocks that match the linear slide rails; the third-level base plate has linear slide rails on both vertical sides facing the second-level base plate, and the second-level base plate has sliding blocks that match the linear slide rails.

6. The streamlined and space-saving printing press according to claim 1 or 2, characterized in that, The frame is equipped with a support frame, and a transverse moving component perpendicular to the conveying direction of the PCB board is provided on the support frame above the loading position. An image acquisition device is installed on the transverse moving component to collect the position information of the PCB board located on the upper and lower platforms of the loading position.

7. The streamlined and space-saving printing press according to claim 1 or 2, characterized in that, The printing assembly is provided with a dust cover on its outer periphery, and a telescopic structure is installed on the frame. The output end of the telescopic structure is connected to the dust cover to drive the dust cover to move up and down.

8. The streamlined and space-saving printing press according to claim 1 or 2, characterized in that, The upper platform and the lower platform are provided with positioning pins corresponding to their positions, and the PCB board is provided with pin holes corresponding to the positions of the positioning pins.

9. The streamlined and space-saving printing press according to claim 1 or 2, characterized in that, The frame is equipped with adjusting components for adjusting the first upper limit component, the first lower limit component, the second upper limit component, and the second lower limit component.

10. The streamlined and space-saving printing press according to claim 1 or 2, characterized in that, The first upper limit component, the first lower limit component, the second upper limit component, and the second lower limit component are all magnets.

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