An automated solder resist production line

Abstract

This utility model discloses an automatic solder resist production line, comprising a board loading machine, a hole plugging machine, a leveling machine, a first solder resist screen printing machine, a board flipping machine, a second solder resist screen printing machine, and a board collecting machine connected in sequence. The board flipping machine includes a first conveyor belt that connects to the first solder resist screen printing machine, a second conveyor belt that connects to the second solder resist screen printing machine, a rotating shaft disposed between the first and second conveyor belts, and a first drive mechanism for driving the rotating shaft to rotate. The outer circumferential surface of the rotating shaft is provided with a receiving groove for the circuit board to enter, and the receiving groove can cooperate and connect with the first or second conveyor belt as the rotating shaft rotates. This utility model embodiment can achieve efficient, stable, and automated production of the solder resist process, effectively solving the problems of low efficiency and poor connection of traditional production lines.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board manufacturing technology, and in particular to an automatic solder mask production line. Background Technology

[0002] In the production of printed circuit boards (PCBs), the solder mask process is a critical step, typically requiring the printing of solder mask ink on both sides of the PCB. Traditional solder mask production lines are mostly segmented operations, with each piece of equipment operating independently. After the PCB is loaded, vias plugged, leveled, and screen-printed on one side, it needs to be flipped manually or semi-automatically before the other side is printed and the board is collected. This operational mode results in discontinuous process connections, long transfer times, and low overall production efficiency. Especially in the flipping stage, existing technologies often use robotic arms or dual conveyor belts with flipping arms, which are complex in structure, have long cycle times, and require multiple positioning and pauses during the flipping process, severely affecting the continuity and speed of the production line. At the same time, due to the lack of effective coordination between equipment, PCBs are prone to waiting or congestion during transfer, causing inconsistent production cycles and limiting the overall line capacity.

[0003] Furthermore, traditional production lines suffer from mismatched cycle times and low automation integration, leading to idle equipment and excessive manual intervention, further reducing production efficiency. As PCB products evolve towards high-density, large-scale production, higher demands are placed on production speed and continuity. Existing solder mask production lines are struggling to meet the needs of efficient, rapid, and stable production. Therefore, there is an urgent need for an automated solder mask production line with tightly integrated processes, continuous operation, high-efficiency board turnover, and a high degree of automation to shorten production cycles and improve overall production efficiency. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an automated solder resist production line, which can achieve efficient, stable, and automated production of the solder resist process, effectively solving the problems of low efficiency and poor coordination in traditional production lines.

[0005] An automatic solder resist production line according to this utility model includes a board loading machine, a hole plugging machine, a leveling machine, a first solder resist screen printing machine, a board flipping machine, a second solder resist screen printing machine, and a board collecting machine connected in sequence. The board flipping machine includes a first conveyor belt connected to the first solder resist screen printing machine, a second conveyor belt connected to the second solder resist screen printing machine, a rotating shaft disposed between the first conveyor belt and the second conveyor belt, and a first driving mechanism for driving the rotating shaft to rotate. The outer circumferential surface of the rotating shaft is provided with a receiving groove for the circuit board to enter. The receiving groove can cooperate and connect with the first conveyor belt or the second conveyor belt as the rotating shaft rotates.

[0006] The automatic solder resist production line according to the above embodiments of the present invention has at least the following beneficial effects: The automatic solder mask production line provided in this embodiment connects a board loading machine, a hole plugging machine, a leveling machine, a first solder mask screen printing machine, a flipping machine, a second solder mask screen printing machine, and a board collecting machine in sequence. This achieves fully automated continuous operation of the entire circuit board process from loading to collecting, reducing waiting time and manual transfer time between processes, significantly shortening the production cycle, and improving the overall line speed and capacity. The flipping machine adopts a structure design with a rotating shaft and a receiving groove. Specifically, after the circuit board enters the receiving groove with the first conveyor belt, it rotates 180° with the rotating shaft to complete the flipping. Then, it is carried away from the receiving groove when it contacts the second conveyor belt. The action is simple and the positioning is accurate. There is no need for complex gripping or adsorption mechanisms, which reduces the action cycle and failure points, and achieves fast and stable automatic flipping, effectively improving the continuity and cycle consistency of the production line. The receiving groove plays a limiting and protective role for the circuit board during the flipping process, avoiding the risks of scratches, deformation, or falling of the board surface that may be caused by traditional suction cup or clamping flipping. It is especially suitable for thin boards, large-size boards, and other easily damaged circuit boards, which helps to improve product yield. On the other hand, the equipment in each process is closely integrated and compactly laid out, reducing the need for intermediate conveyor devices and buffer areas, lowering the equipment footprint, and improving the overall automation and collaborative control level of the line, reducing manual intervention and lowering operation and maintenance costs. Furthermore, the precise control of the start, stop, and angle of the rotating shaft through the first drive mechanism can adapt to the flipping requirements of different sized circuit boards, ensuring good compatibility; the entire line operates smoothly with a low failure rate, meeting the requirements of large-scale, high-efficiency, and continuous PCB production.

[0007] According to some embodiments of the present invention, a plurality of support plates are equidistantly arranged on the outer circumferential surface of the rotating shaft, and the receiving groove is formed between two adjacent support plates, and part of the circuit board can enter the receiving groove.

[0008] According to some embodiments of the present invention, the support plate is composed of a plurality of support rods, and the plurality of support rods are distributed at equal intervals along the axial direction of the rotation axis.

[0009] According to some embodiments of the present invention, a plurality of first conveyor belts are provided, the plurality of first conveyor belts are distributed at equal intervals along the axial direction of the rotation axis, and the plurality of support rods are staggered with the plurality of first conveyor belts along the axial direction of the rotation axis.

[0010] According to some embodiments of the present invention, multiple second conveyor belts are provided, and the multiple second conveyor belts are distributed at equal intervals along the axial direction of the rotation axis, and the multiple support rods and the multiple second conveyor belts are staggered along the axial direction of the rotation axis.

[0011] According to some embodiments of the present invention, the board loading machine includes a first frame, and the two ends of the first frame are respectively provided with a first storage compartment for storing the circuit board and a third conveyor belt for docking with the hole plugging machine. A board loading device for moving the circuit board from the first storage compartment to the third conveyor belt is provided between the first storage compartment and the third conveyor belt.

[0012] According to some embodiments of the present invention, the upper plate device includes two fourth conveyor belts disposed on the first frame, a first rotating plate disposed between the two fourth conveyor belts, and a second driving mechanism for driving the first rotating plate to rotate. The two ends of the fourth conveyor belts are respectively connected to the first warehouse and the third conveyor belt. One end of the first rotating plate is rotatably connected to the side of the first frame near the first warehouse. The other end of the first rotating plate is provided with an adhesive plate. The first rotating plate can transfer the circuit board from the first warehouse to the fourth conveyor belt through the adhesive plate.

[0013] According to some embodiments of the present invention, the upper plate device further includes a sliding frame slidably disposed on the first frame and a third driving mechanism for driving the sliding frame to approach or move away from the first cargo compartment. The sliding frame is located below the first rotating plate, and a vacuum suction cup is provided at one end of the sliding frame facing the first cargo compartment. The vacuum suction cup can press the circuit board or cooperate to extract the circuit board.

[0014] According to some embodiments of the present invention, the first frame is provided with a fourth driving mechanism for driving the first cargo compartment to move closer to or further away from the first rotating plate.

[0015] According to some embodiments of the present invention, the fourth conveyor belt includes a plurality of first rollers rotatably mounted on the first frame and a fifth drive mechanism for driving the first rollers to rotate. The first rollers include an inner shaft and a plurality of outer wheels fixedly mounted on the inner shaft, and the plurality of outer wheels are evenly spaced along the axial direction of the inner shaft.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of an automatic solder resist production line according to an embodiment of the present utility model; Figure 2 This is a first structural schematic diagram of the flipping machine according to an embodiment of the present utility model; Figure 3This is a second structural schematic diagram of the flipping machine according to an embodiment of the present utility model; Figure 4 This is a first structural schematic diagram of the board mounting machine according to an embodiment of the present utility model; Figure 5 This is a second structural schematic diagram of the board mounting machine according to an embodiment of the present utility model; Figure 6 This is a third structural schematic diagram of the board mounting machine according to an embodiment of the present utility model; Figure 7 This is a first structural schematic diagram of the plate take-up machine according to an embodiment of the present utility model; Figure 8 This is a second structural schematic diagram of the plate take-up machine according to an embodiment of the present utility model; In the attached figures, the following labels are used: 1. Board loading machine; 2. Hole plugging machine; 3. Leveling machine; 4. First solder resist screen printing machine; 5. Flipping machine; 6. Second solder resist screen printing machine; 7. Board collecting machine; 8. Circuit board; First frame 11; First cargo bin 12; Third conveyor belt 13; Second roller 131; Fourth conveyor belt 14; First roller 141; Inner shaft 1411; Outer wheel 1412; First rotating plate 15; Adhesion plate 151; Sliding frame 16; Vacuum suction cup 161; Third drive mechanism 17; Fourth drive mechanism 18; First centering mechanism 19; First push frame 191; Vertical rod 1911; Connecting rod 1912; Sixth drive mechanism 192; Buffer spring 193; Connecting frame 194; Pressure roller 195; First conveyor belt 51; Second conveyor belt 52; Rotating shaft 53; Support rod 54; Second frame 71; fifth conveyor belt 72; second cargo bin 73; sixth conveyor belt 74; second rotating plate 75; blocking bracket 751; ninth drive mechanism 76; second centering mechanism 77. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution. In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] Reference Figures 1 to 8 According to the present invention, an automatic solder resist production line includes a board loading machine 1, a hole plugging machine 2, a leveling machine 3, a first solder resist screen printing machine 4, a board flipping machine 5, a second solder resist screen printing machine 6, and a board collecting machine 7 connected in sequence. The board flipping machine 5 includes a first conveyor belt 51 connected to the first solder resist screen printing machine 4, a second conveyor belt 52 connected to the second solder resist screen printing machine 6, a rotating shaft 53 disposed between the first conveyor belt 51 and the second conveyor belt 52, and a first driving mechanism for driving the rotating shaft 53 to rotate. The outer circumferential surface of the rotating shaft 53 is provided with a receiving groove for the circuit board 8 to enter. The receiving groove can cooperate and connect with the first conveyor belt 51 or the second conveyor belt 52 as the rotating shaft 53 rotates.

[0023] It is understood that the automatic solder resist production line provided in this embodiment of the utility model connects the board loading machine 1, the hole plugging machine 2, the leveling machine 3, the first solder resist screen printing machine 4, the flipping machine 5, the second solder resist screen printing machine 6, and the receiving machine 7 in sequence to realize the fully automated continuous operation of the circuit board 8 from loading to receiving, reducing the waiting time and manual transfer time between processes, significantly shortening the production cycle, and improving the overall line speed and capacity. The flipping machine 5 adopts a structural design of rotating shaft 53 and receiving groove. Specifically, after the circuit board 8 enters the receiving groove with the movement of the first conveyor belt 51, it rotates 180° with the rotating shaft 53 to complete the flipping, and then is carried away from the receiving groove when it contacts the second conveyor belt 52. The action is simple and the positioning is accurate. There is no need for complex gripping or adsorption mechanisms, which reduces the action cycle and failure points, realizes fast and stable automatic flipping, and effectively improves the continuity and cycle consistency of the production line. The receiving slot serves to limit and protect the circuit board 8 during the flipping process, avoiding the risks of scratches, deformation, or falling that may occur with traditional suction cup or clamp-type flipping. It is especially suitable for fragile circuit boards 8 such as thin boards and large-size boards, helping to improve product yield. On the other hand, the close integration and compact layout of each process reduces the need for intermediate conveying devices and buffer areas, reducing the equipment footprint, while improving the level of automation and collaborative control of the entire line, reducing manual intervention, and lowering operating and maintenance costs. Furthermore, the precise control of the start, stop, and angle of the rotating shaft 53 through the first drive mechanism can adapt to the flipping requirements of circuit boards 8 of different specifications, with good compatibility; the entire line operates smoothly with a low failure rate, meeting the requirements of large-scale, high-efficiency, and continuous PCB production.

[0024] Furthermore, refer to Figure 2 and Figure 3 According to some embodiments of the present invention, a plurality of support plates are provided at equal intervals along the circumferential direction on the outer peripheral surface of the rotating shaft 53, and a receiving groove is formed between two adjacent support plates, and part of the circuit board 8 can enter the receiving groove.

[0025] Understandably, by setting equidistant support plates on the rotating shaft 53 to form a receiving groove, the circuit board 8 is ensured to be firmly fixed in the receiving groove during the flipping process, avoiding the risk of the circuit board 8 shifting or falling off during high-speed rotation, and improving the stability and reliability of the flipping process.

[0026] Furthermore, refer to Figure 2 and Figure 3 According to some embodiments of this utility model, the support plate is composed of a plurality of support rods 54, which are equidistantly distributed along the axial direction of the rotation shaft 53. To reduce damage to the surface of the circuit board 8, the support rods 54 can be made of a flexible material, including but not limited to rubber and silicone.

[0027] Understandably, the design of the support rod 54 enhances the strength and stability of the support plate, reduces the risk of deformation or damage due to long-term use, and the equidistant distribution of the support rods 54 ensures that the circuit board 8 is subjected to uniform force, further improving the stability and safety during the flipping process.

[0028] Furthermore, refer to Figure 2 and Figure 3 According to some embodiments of the present invention, multiple first conveyor belts 51 are provided, and the multiple first conveyor belts 51 are distributed at equal intervals along the axial direction of the rotation shaft 53, and multiple support rods 54 are staggered with the multiple first conveyor belts 51 along the axial direction of the rotation shaft 53; multiple second conveyor belts 52 are provided, and the multiple second conveyor belts 52 are distributed at equal intervals along the axial direction of the rotation shaft 53, and multiple support rods 54 are staggered with the multiple second conveyor belts 52 along the axial direction of the rotation shaft 53.

[0029] Specifically, as the rotating shaft 53 rotates, the support rod 54 can move between two adjacent first conveyor belts 51 or second conveyor belts 52. When the circuit board 8 is output from the first solder mask screen printing machine 4 onto the first conveyor belt 51, the support rod 54 can pass upward between the two adjacent first conveyor belts 51 to lift the circuit board 8 from below and feed it into the receiving groove as the rotating shaft 53 rotates. As the rotating shaft 53 continues to rotate, the circuit board 8 rotates 180° and can contact the second conveyor belt 52. Since the support rod 54 and the second conveyor belt 52 do not interfere with each other, the circuit board 8 can be directly carried away from the receiving groove after contacting the second conveyor belt 52, thereby reducing interaction time and improving work efficiency. On the other hand, the staggered distribution design optimizes the transfer path of the circuit board 8 from the first conveyor belt 51 to the rotating shaft 53, ensuring that the circuit board 8 is accurately positioned when entering and leaving the receiving groove, reducing jamming or damage caused by misalignment, and improving the smoothness and efficiency of the entire line.

[0030] Furthermore, refer to Figures 4 to 6 According to some embodiments of the present invention, the board loading machine 1 includes a first frame 11, and the two ends of the first frame 11 are respectively provided with a first storage compartment 12 for storing circuit boards 8 and a third conveyor belt 13 for docking and plugging machine 2. A board loading device for moving circuit boards 8 from the first storage compartment 12 to the third conveyor belt 13 is provided between the first storage compartment 12 and the third conveyor belt 13.

[0031] Understandably, the integrated design of the board loading machine 1 simplifies the process of the circuit board 8 from storage to entering the production line, reduces manual intervention, improves the degree of automation and production efficiency, and at the same time reduces the error and failure rate caused by human operation.

[0032] Furthermore, refer to Figures 4 to 6According to some embodiments of the present invention, the upper plate device includes two fourth conveyor belts 14 disposed on the first frame 11, a first rotating plate 15 disposed between the two fourth conveyor belts 14, and a second driving mechanism for driving the first rotating plate 15 to rotate. The two ends of the fourth conveyor belts 14 are respectively connected to the first cargo compartment 12 and the third conveyor belt 13. One end of the first rotating plate 15 is rotatably connected to the side of the first frame 11 near the first cargo compartment 12. The other end of the first rotating plate 15 is provided with an adhesive plate 151 facing upward. The first rotating plate 15 can transfer the circuit board 8 from the first cargo compartment 12 to the fourth conveyor belt 14 through the adhesive plate 151.

[0033] Understandably, the design of the first rotating plate 15 and the adhesion plate 151 enables the rapid and precise transfer of the circuit board 8, reduces the damage that may be caused by traditional robotic gripping or suction cup adsorption, and improves the safety and efficiency of the transfer process.

[0034] Furthermore, refer to Figures 4 to 6 According to some embodiments of the present invention, the upper plate device further includes a sliding frame 16 slidably disposed on the first frame 11 and a third drive mechanism 17 for driving the sliding frame 16 to approach or move away from the first cargo compartment 12. The sliding frame 16 is located below the first rotating plate 15. A vacuum suction cup 161 is provided at one end of the sliding frame 16 facing the first cargo compartment 12. The vacuum suction cup 161 can press the circuit board 8 or cooperate to extract the circuit board 8.

[0035] Understandably, the combination of the sliding frame 16 and the vacuum suction cup 161 provides additional means of fixing and extracting the circuit board 8, which is more flexible and efficient, especially when dealing with circuit boards 8 of different sizes or shapes, reducing equipment adjustment time and improving adaptability and work efficiency.

[0036] Furthermore, refer to Figures 4 to 6 According to some embodiments of the present invention, the first frame 11 is provided with a fourth drive mechanism 18 for driving the first cargo compartment 12 to approach or move away from the first rotating plate 15.

[0037] Understandably, the fourth drive mechanism 18 allows the position of the first cargo compartment 12 to be dynamically adjusted to adapt to the loading and unloading needs of different batches or specifications of circuit boards 8, increasing the flexibility and adaptability of the system and helping to improve production efficiency.

[0038] Furthermore, refer to Figures 4 to 6 According to some embodiments of the present invention, the fourth conveyor belt 14 includes a plurality of first rollers 141 rotatably mounted on the first frame 11 and a fifth drive mechanism for driving the first rollers 141 to rotate. The first rollers 141 include an inner shaft 1411 and a plurality of outer wheels 1412 fixedly mounted on the inner shaft 1411. The plurality of outer wheels 1412 are evenly spaced along the axial direction of the inner shaft 1411.

[0039] Understandably, this design ensures flexibility and stability during transmission, effectively reduces contact friction between the first roller 141 and the circuit board, protects the surface of the circuit board, and increases the service life of the first roller 141.

[0040] Furthermore, refer to Figures 4 to 6 According to some embodiments of the present invention, a first centering mechanism 19 is provided on the third conveyor belt 13. The first centering mechanism 19 includes two first push frames 191 symmetrically arranged on both sides of the third conveyor belt 13 and a sixth drive mechanism 192 that drives the two first push frames 191 to move closer or further apart from each other.

[0041] Understandably, the first centering mechanism 19 ensures that the circuit board 8 is accurately positioned before entering the hole-filling machine 2, avoiding process problems caused by positional deviations, improving product quality and consistency, and reducing the amount of adjustment work in subsequent processes.

[0042] Furthermore, refer to Figures 4 to 6 According to some embodiments of the present invention, the third conveyor belt 13 includes a plurality of second rollers 131 rotatably mounted on the first frame 11 and a seventh drive mechanism for driving the second rollers 131 to rotate. The plurality of second rollers 131 are evenly spaced along a straight line. The first push frame 191 includes a plurality of vertical rods 1911. The plurality of second rollers 131 and the plurality of vertical rods 1911 are staggered. The two ends of the vertical rods 1911 are located above and below the second rollers 131, respectively. The two ends of the plurality of vertical rods 1911 are fixedly connected by connecting rods 1912.

[0043] Understandably, the staggered structure of the second roller 131 and the vertical bar 1911 not only ensures the smooth transport of the circuit board 8, but also provides physical support for centering adjustment, making the centering process more precise and stable, and improving the reliability and efficiency of the overall production.

[0044] Furthermore, refer to Figures 4 to 6 According to some embodiments of the present invention, the first centering mechanism 19 further includes a connecting frame 194 connected to the input end of the plugging machine 2 via a buffer spring 193. The connecting frame 194 is located above the third conveyor belt 13. A pressure roller 195 is rotatably connected to the connecting frame 194. When the circuit board 8 moves below the pressure roller 195, the pressure roller 195 can press down on the circuit board 8.

[0045] Understandably, the design of the buffer spring 193 and the pressure roller 195 provides flexible adjustment during the centering process of the circuit board 8, preventing damage caused by hard collisions, ensuring the flatness and stability of the circuit board 8 before entering the hole-filling machine 2, and improving the product yield.

[0046] Furthermore, refer to Figure 7 and Figure 8 According to some embodiments of the present invention, the board receiving machine 7 includes a second frame 71. The two ends of the second frame 71 are respectively provided with a fifth conveyor belt 72 that docks with the second solder resist screen printing machine 6 and a second storage compartment 73 for storing circuit boards 8. A board receiving device is provided between the fifth conveyor belt 72 and the second storage compartment 73 to move the circuit boards 8 from the fifth conveyor belt 72 to the second storage compartment 73.

[0047] Understandably, the integrated design of the board receiving machine 7 simplifies the process of the circuit board 8 from the production line to storage, reduces manual handling, improves production efficiency and automation level, and at the same time ensures the safety and integrity of the circuit board 8 during transportation.

[0048] Furthermore, refer to Figure 7 and Figure 8 According to some embodiments of the present invention, the plate receiving device includes two sixth conveyor belts 74 disposed on the second frame 71, a second rotating plate 75 disposed between the two sixth conveyor belts 74, and an eighth driving mechanism for driving the second rotating plate 75 to rotate. The two ends of the sixth conveyor belts 74 are respectively connected to the fifth conveyor belt 72 and the second cargo bin 73. One end of the second rotating plate 75 is rotatably connected to the side of the second frame 71 near the second cargo bin 73 and is provided with a blocking bracket 751. The second rotating plate 75 can block the movement of the circuit board 8 through the blocking bracket 751 and transfer the circuit board 8 from the sixth conveyor belt 74 to the second cargo bin 73 by rotation.

[0049] Understandably, the design of the second rotating plate 75 and the blocking bracket 751 enables the automatic transfer and stacking of the circuit board 8, reduces manual intervention, improves the efficiency and accuracy of the board collection process, and protects the circuit board 8 from damage.

[0050] Furthermore, refer to Figure 7 and Figure 8 According to some embodiments of the present invention, the second frame 71 is provided with a ninth drive mechanism 76 for driving the second cargo compartment 73 to approach or move away from the second rotating plate 75, and the fifth conveyor belt 72 is provided with a second centering mechanism 77.

[0051] Understandably, the dynamic adjustment function of the second storage compartment 73 enables it to adapt to different production needs, improving the system's flexibility and adaptability. The second centering mechanism 77 ensures the accurate positioning of the circuit board 8 before it enters the receiving machine 7, improving overall production quality and efficiency. It should be noted that in this embodiment, the sixth conveyor belt 74 may adopt the same structure as the fourth conveyor belt 14 in the above embodiment, and therefore should have the same beneficial effects, which will not be elaborated further here; the fifth conveyor belt 72 may adopt the same structure as the third conveyor belt 13 in the above embodiment, and therefore should have the same beneficial effects, which will not be elaborated further here; the second centering mechanism 77 may adopt the same structure as the first centering mechanism 19 in the above embodiment, and therefore should have the same beneficial effects, which will not be elaborated further here.

[0052] Furthermore, according to some embodiments of this utility model, the board collecting machine 7 can also be connected to a tunnel oven to bake the circuit board 8 that has completed the solder resist process. The tunnel oven can be made using existing technology, which will not be described in detail here.

[0053] In this embodiment of the invention, the driving mechanism may be a cylinder, hydraulic cylinder, lead screw motor, or a combination of multiple structures, which can be determined according to the actual situation and is not specifically limited here. The embodiments of the invention have been described in detail above with reference to the accompanying drawings. However, the invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. An automated solder resist production line, characterized in that, include: The board loading machine, hole plugging machine, leveling machine, first solder resist screen printing machine, flipping machine, second solder resist screen printing machine, and board collecting machine are connected in sequence. The flipping machine includes a first conveyor belt that connects to the first solder resist screen printing machine, a second conveyor belt that connects to the second solder resist screen printing machine, a rotating shaft located between the first conveyor belt and the second conveyor belt, and a first driving mechanism that drives the rotating shaft to rotate. The outer circumferential surface of the rotating shaft is provided with a receiving groove for the circuit board to enter. The receiving groove can cooperate and connect with the first conveyor belt or the second conveyor belt as the rotating shaft rotates.

2. The automatic resist welding production line according to claim 1, characterized in that, The outer circumferential surface of the rotating shaft is provided with a plurality of support plates at equal intervals along the circumference, and the receiving groove is formed between two adjacent support plates, and part of the circuit board can enter the receiving groove.

3. The automatic resist welding production line according to claim 2, characterized in that, The support plate is composed of a plurality of support rods, which are distributed at equal intervals along the axial direction of the rotation axis.

4. The automatic solder resist production line according to claim 3, characterized in that, The first conveyor belt is provided in multiple ways, and the multiple first conveyor belts are distributed at equal intervals along the axial direction of the rotation axis, and the multiple support rods are staggered with the multiple first conveyor belts along the axial direction of the rotation axis.

5. The automatic resist welding production line according to claim 3, characterized in that, The second conveyor belt is provided in multiple ways, and the multiple second conveyor belts are distributed at equal intervals along the axial direction of the rotation axis, and the multiple support rods are staggered with the multiple second conveyor belts along the axial direction of the rotation axis.

6. The automatic resist welding production line according to claim 1, characterized in that, The board loading machine includes a first frame, with a first storage compartment for storing the circuit board and a third conveyor belt for docking with the plugging machine at both ends of the first frame. A board loading device is provided between the first storage compartment and the third conveyor belt to move the circuit board from the first storage compartment to the third conveyor belt.

7. The automatic solder resist production line according to claim 6, characterized in that, The upper plate device includes two fourth conveyor belts mounted on the first frame, a first rotating plate disposed between the two fourth conveyor belts, and a second driving mechanism for driving the first rotating plate to rotate. The two ends of the fourth conveyor belts are respectively connected to the first warehouse and the third conveyor belt. One end of the first rotating plate is rotatably connected to the side of the first frame near the first warehouse. The other end of the first rotating plate has an adhesive plate facing upwards. The first rotating plate can transfer the circuit board from the first warehouse to the fourth conveyor belt through the adhesive plate.

8. The automatic resist welding production line according to claim 7, characterized in that, The upper plate device further includes a sliding frame that can be slidably mounted on the first frame and a third drive mechanism that drives the sliding frame to move closer to or away from the first cargo compartment. The sliding frame is located below the first rotating plate, and a vacuum suction cup is provided at one end of the sliding frame facing the first cargo compartment. The vacuum suction cup can press the circuit board or cooperate to extract the circuit board.

9. The automatic resist welding production line according to claim 8, characterized in that, The first frame is provided with a fourth drive mechanism that drives the first cargo compartment to move closer to or further away from the first rotating plate.

10. The automatic resist welding production line according to claim 7, characterized in that, The fourth conveyor belt includes a plurality of first rollers rotatably mounted on the first frame and a fifth drive mechanism for driving the first rollers to rotate. The first rollers include an inner shaft and a plurality of outer wheels fixedly mounted on the inner shaft. The plurality of outer wheels are evenly spaced along the axial direction of the inner shaft.

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