PCB board feeding device

Abstract

The application relates to the technical field of PCB board equipment, and provides a PCB board feeding device, which comprises a first mounting seat and a second mounting seat, a first conveying belt is arranged on the first mounting seat, a second conveying belt is arranged on the second mounting seat, the first conveying belt and the second conveying belt convey in the same direction; a first supporting plate and a first side stopper are arranged on the first mounting seat respectively, the first supporting plate is located above the first conveying belt, the first side stopper is located above the first supporting plate, and a first gap is reserved between the first side stopper and the first supporting plate; a second supporting plate and a second side stopper are arranged on the second mounting seat respectively, a second gap is reserved between the second side stopper and the second supporting plate, a first push plate is movably arranged in the first gap, and a second push plate is movably arranged in the second gap. The application has the effects of conveniently feeding the PCB board and reducing the labor intensity of personnel.

Description

Technical Field

[0001] This application relates to the field of PCB board equipment technology, and in particular to a PCB board loading device. Background Technology

[0002] A PCB, also known as a printed circuit board, provides electrical connections for electronic components and is widely used in electronic industrial equipment. A PCB typically uses an insulating board as its base material, cut to a specific size, and has at least one conductive pattern on it. It primarily replaces the traditional chassis used to mount electronic components and enables interconnections between these components.

[0003] During the PCB manufacturing process, a feeding device is needed to transport the PCB to the corresponding assembly process.

[0004] In existing technologies, most feeding devices include a frame, a storage frame, a lifting mechanism, a pushing mechanism, and a conveyor belt. The frame is supported on the ground, and the storage frame is installed on the frame by lifting and lowering it vertically. PCB boards can be stacked inside the storage frame, with the PCB boards spaced apart vertically and gaps left between adjacent PCB boards.

[0005] The lifting mechanism is installed on the frame and connected to the storage frame to control the up and down lifting of the storage frame; the pushing mechanism and the conveyor belt are on the same horizontal plane and are located on both sides of the storage frame respectively. The pushing mechanism is used to push the PCB board in the storage frame onto the conveyor belt to realize the loading of the PCB board.

[0006] Regarding the aforementioned technologies, a storage frame is required when loading PCB boards. The storage frame is quite heavy, and because a gap needs to be left between two adjacent PCB boards arranged vertically, operators must insert them one by one into the storage frame, which is labor-intensive and requires improvement. Summary of the Invention

[0007] To facilitate the loading of PCB boards and reduce the labor intensity of personnel, this application provides a PCB board loading device.

[0008] The PCB board loading device provided in this application adopts the following technical solution:

[0009] A PCB board loading device includes a first mounting base and a second mounting base, the first mounting base being located on one side of the second mounting base; a first conveyor belt is provided on the first mounting base, and a second conveyor belt is provided on the second mounting base, the first conveyor belt and the second conveyor belt conveying in the same direction;

[0010] The first mounting base is provided with a first support plate and a first side block. The first support plate is located above the first conveyor belt, and the first side block is located above the first support plate. A first gap is left between the first side block and the first support plate.

[0011] The second mounting base is respectively provided with a second support plate and a second side block. The second support plate is located above the second conveyor belt, and the support surface of the second support plate is at the same horizontal plane as the support surface of the first support plate. The second side block is located above the second support plate, and the second side block is arranged opposite to the first side block. A second gap is left between the second side block and the second support plate.

[0012] A first push plate is movably disposed within the first gap, and the first push plate is used to push the PCB board; a second push plate is movably disposed within the second gap, and the second push plate is used to push the PCB board; a driving device and a support plate are respectively disposed between the first mounting base and the second mounting base, the driving device is close to the second mounting base, the support plate is connected to the driving device, and the driving device is used to control the support plate to move up and down in the vertical direction.

[0013] By adopting the above technical solution, before loading, workers stack several PCB boards between the first and second side blocks. At this time, the two sides of the PCB board rest on the first and second support plates respectively, and the first and second support plates together provide support for the PCB board. The height of the first gap and the second gap is slightly greater than the thickness of a single PCB board, allowing the PCB board to enter the first gap or the second gap.

[0014] When PCB boards need to be loaded, the drive device first controls the pallet to rise, so that the upper surface of the pallet is higher than the conveying surface of the second conveyor belt and lower than the supporting surface of the second support plate. Then, the second push plate located in the second gap moves horizontally toward the first push plate to push the bottommost PCB board, causing it to detach from the support of the second support plate, while a portion of the PCB board is pushed into the first gap.

[0015] At this point, the bottom PCB board will sag under its own weight and the pressure of the other PCB boards above it, causing the side of the PCB board closest to the second side block to rest on the support plate. The support plate supports the PCB board and prevents it from breaking under the force.

[0016] Next, the first pusher plate, located within the first gap, moves horizontally towards the second pusher plate, pushing the PCB board out of the first gap and removing it from the support of the first support plate. Under the influence of gravity, the side of the PCB board closest to the first side stop falls above the conveyor surface of the first conveyor belt, causing the PCB board to tilt. Because the side of the PCB board closest to the second side stop is restrained by the second support plate, the PCB board remains below the support surface of the second support plate.

[0017] Finally, the control tray is lowered to a position flush with the second conveyor belt, so that the side of the PCB board closest to the second side stop falls onto the second conveyor belt, completing the conveying of a single PCB board.

[0018] Throughout the process, operators only need to place several PCB boards on the first and second support plates, and then repeat the above operation to complete the loading of a single PCB board. Unlike existing technologies, there is no need to prepare a storage box or insert each PCB board individually into the storage box, which makes it convenient to load PCB boards, improves the degree of automation, and reduces the labor intensity of personnel.

[0019] Preferably, it further includes a first driving member and a second driving member. The first driving member is disposed on the first mounting base and connected to the first push plate. The first driving member is used to control the first push plate to move linearly in a direction close to or away from the second push plate. The second driving member is disposed on the second mounting base and connected to the second push plate. The second driving member is used to control the second push plate to move linearly in a direction close to or away from the first push plate.

[0020] By adopting the above technical solution, under the action of the first driving component, the first push plate is controlled to move in a straight line, so that the first push plate can push the PCB board; similarly, under the action of the second driving component, the second push plate is controlled to move in a straight line, so that the second push plate pushes the PCB board.

[0021] Preferably, the second support plate is provided with an inclined portion, so that the thickness of the second support plate gradually increases in the direction away from the first support plate.

[0022] By adopting the above technical solution, after the second pusher pushes the bottommost PCB board, one side of the PCB board falls onto the surface of the support plate. When the first pusher pushes the PCB board out of the first gap, the PCB board will move in the direction close to the second support plate; when the PCB board moves, it will come into contact with the inclined part, which plays a guiding role, so that the PCB board moves along the inclined surface of the inclined part, improving the smoothness of the PCB board movement.

[0023] Preferably, the driving device is a pneumatic cylinder or a hydraulic cylinder, and the piston rod of the pneumatic cylinder or hydraulic cylinder is connected to the support plate.

[0024] By adopting the above technical solution, when the piston rod of the pneumatic or hydraulic cylinder extends, the piston rod drives the pallet to move vertically upward, thereby raising the vertical height of the pallet and positioning it between the second support plate and the second conveyor belt. When the piston rod of the pneumatic or hydraulic cylinder retracts, the piston rod drives the pallet to move vertically downward, thereby reducing the vertical height of the pallet.

[0025] Preferably, the assembly further includes a fixed plate, a screw, and a slider. The fixed plate is disposed on the piston rod, the support plate is hinged to the fixed plate, the screw is rotatably disposed on the fixed plate, the slider is screwed to the screw, and the slider and the support plate are connected by a connecting strip, the two ends of which are respectively hinged to the slider and the support plate.

[0026] By adopting the above technical solution, when the control screw rotates, the slider moves along the screw. Since the slider and the support plate are hinged together, under the action of the connecting strip, the slider can push the support plate to rotate as it moves, thereby changing the plane angle between the support plate and the fixed plate. Before loading, the tilt angle of the support plate can be adjusted according to the actual situation so that the support plate can better support the PCB board.

[0027] Preferably, it also includes a frame, a first lead screw, a first guide rod and a drive motor, and the second mounting base is disposed on the frame, and the distance between the first mounting base and the second mounting base is adjustable;

[0028] One end of the first lead screw is mounted on the frame and connected to the drive motor, and the other end is rotatably connected to the second mounting base. The first mounting base is screwed onto the first lead screw. The first guide rod is parallel to the first lead screw, and both ends of the first guide rod are connected to the second mounting base and the frame, respectively. The first guide rod passes through the first mounting base.

[0029] By adopting the above technical solution, when the drive motor controls the first lead screw to rotate, it drives the first mounting seat to move on the first lead screw, causing the first mounting seat to move closer to or further away from the second mounting seat, thereby changing the distance between the first and second mounting seats. When it is necessary to use the first and second support plates to support the PCB board, since the PCB board has different length and width specifications, the distance between the first and second mounting seats can be adjusted according to the actual situation to better place the PCB board.

[0030] In addition, during the movement of the first mounting base, the first guide rod can play a role in limiting and guiding, making the movement of the first mounting base more stable.

[0031] Preferably, it further includes a second lead screw and a second guide rod. The second lead screw is parallel to the first lead screw and is rotatably connected to the second mounting base. The first lead screw and the second lead screw are connected to the drive motor through a transmission assembly. The first mounting base is screwed onto both the first lead screw and the second lead screw. The second guide rod is parallel to the first guide rod and passes through the first mounting base.

[0032] By adopting the above technical solution, the second lead screw and the first lead screw have the same function: to control the movement of the first mounting base. The second guide rod and the first guide rod have the same function: to further improve the stability of the first mounting base during movement.

[0033] In addition, under the linkage of the transmission components, the drive motor can simultaneously control the first lead screw and the second lead screw to rotate in the same direction, without the need for two drive motors to control the rotation of the first lead screw and the second lead screw separately.

[0034] Preferably, it also includes a bellows cover, one end of which is disposed on the frame and the other end on the first mounting base, and the first lead screw is located inside the bellows cover.

[0035] By adopting the above technical solution, the first lead screw is installed inside the bellows cover, which can reduce the direct contact between the first lead screw and external dust and other impurities, thereby protecting the first lead screw and avoiding any impact on the first lead screw driving the first mounting base.

[0036] Meanwhile, the bellows cover is telescopic. When the first mounting base slides, the bellows cover can extend and retract in the same direction as the first mounting base, without interfering with the normal movement of the first mounting base.

[0037] Preferably, the system further includes a first positioning plate, a second positioning plate, and a plurality of return springs. The first positioning plate and the second positioning plate are parallel to each other and are arranged sequentially along the conveying direction of the first conveyor belt. The first positioning plate and the second positioning plate are both arranged between the first side stop and the second side stop. The first positioning plate is adjustablely arranged on the second positioning plate. Each of the return springs is spaced apart between the first positioning plate and the second positioning plate. The elastic force direction of each return spring is parallel to the conveying direction of the first conveyor belt.

[0038] While the first and second side blocks can limit the movement of the PCB board on both sides using the above technical solution, the other two sides of the PCB board lack positioning. When operators stack several PCB boards on the first and second support plates, it is necessary to adjust the flatness of the PCB boards to align the edges between adjacent PCB boards.

[0039] The first positioning plate, acting as a positioning plane, can cooperate with the first and second side blocks to restrict the three sides of the PCB board. When the PCB board is placed between the first and second side blocks, a pushing force can be applied directly to the PCB board, causing one side of the PCB board to abut against the plane of the first positioning plate, thereby adjusting the alignment of the PCB board.

[0040] Meanwhile, a return spring is installed between the first and second positioning plates, which acts as a buffer. When the operator accidentally applies too much force and pushes the PCB board onto the first positioning plate, the return spring is compressed, allowing the first positioning plate to retract a certain distance. Finally, under the elastic restoring force of the return spring, the first positioning plate returns to its initial position.

[0041] Preferably, it further includes an elastic layer, wherein the elastic layer is provided on the side of the first push plate facing the second push plate, and the elastic layer is also provided on the side of the second push plate facing the first push plate.

[0042] By adopting the above technical solution, the elastic layer will come into contact with the PCB board when the first or second pusher plate pushes the PCB board. The elastic layer is elastic and can play a buffering role, reducing the force on the PCB board when it is pushed.

[0043] In summary, this application includes at least one of the following beneficial technical effects:

[0044] (1) During loading, the drive device is first used to control the pallet to rise between the second conveyor belt and the second support plate. Then, the second pusher plate is used to push the bottommost PCB board. At this time, the side of the bottommost PCB board closest to the second side stop rests on the pallet. Next, the first pusher plate is used to push the PCB board to detach it from the support of the first support plate. Finally, the pallet is controlled to descend to a position flush with the second conveyor belt so that the PCB board falls onto the first and second conveyor belts, completing the conveying of a single PCB board. In the entire operation, it is not necessary to insert each PCB board individually into the storage box as in the prior art, thus facilitating the loading of PCB boards and reducing the labor intensity of personnel.

[0045] (2) By setting a first lead screw, a first guide rod, and a drive motor, when the drive motor controls the first lead screw to rotate, it drives the first mounting seat to move on the first lead screw, so that the first mounting seat moves closer to or further away from the second mounting seat, thereby changing the distance between the first mounting seat and the second mounting seat. During the movement of the first mounting seat, the first guide rod can play a limiting and guiding role, so that the first mounting seat moves more smoothly.

[0046] (3) By setting a first positioning plate and a second positioning plate, the first positioning plate serves as a positioning plane and can cooperate with the first side block and the second side block to restrict the three sides of the PCB board, making it convenient to adjust the neatness of each PCB board. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the PCB board loading device in one embodiment of this application;

[0048] Figure 2 This is a partial structural schematic diagram of a PCB board loading device in one embodiment of this application;

[0049] Figure 3 This application Figure 2 A structural diagram from another perspective;

[0050] Figure 4 This is a schematic diagram of the structure of the first mounting base and the second mounting base in one embodiment of this application;

[0051] Figure 5 This is a schematic diagram of the drive device and the tray in another embodiment of this application;

[0052] Figure 6 This is a schematic diagram of the PCB board loading device in another embodiment of this application;

[0053] Figure 7 This is a partial structural schematic diagram of the PCB board loading device in another embodiment of this application;

[0054] Figure 8 This is a schematic diagram of the PCB board loading device in another embodiment of this application;

[0055] Figure 9 This is a schematic diagram of the structure of the first positioning plate and the second positioning plate cooperating in another embodiment of this application.

[0056] Reference numerals: 1. Frame; 2. First mounting base; 3. Second mounting base; 4. First conveyor belt; 5. Second conveyor belt; 6. First support plate; 7. First side stop; 8. Second support plate; 9. Second side stop; 10. First gap; 11. Second gap; 12. First push plate; 13. Second push plate; 14. Drive device; 15. Support plate; 16. First drive component; 17. Second drive component; 18. Elastic layer; 19. Inclined part; 20. Fixed plate; 21. Receiving groove; 22. Screw; 23. Slider; 24. Connecting bar; 25. First lead screw; 26. First guide rod; 27. Second lead screw; 28. Second guide rod; 29. ​​Drive motor; 30. Transmission assembly; 301. Sprocket; 302. Chain; 31. Bellows cover; 32. First positioning plate; 33. Second positioning plate; 34. Return spring. Detailed Implementation

[0057] The technical solutions of this application will now be described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can be embodied in many different forms and is not limited to the embodiments described herein.

[0058] In the representation of this application, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0060] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection; a detachable connection; an integral part; or a mechanical connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0061] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Without conflict, those skilled in the art can combine and integrate the different embodiments or examples shown in this application, as well as the features of those embodiments or examples.

[0062] This application discloses a PCB board loading device. (Refer to...) Figure 1 The PCB board loading device includes a frame 1, a first mounting base 2, and a second mounting base 3. The frame 1 serves as a carrier, and both the first mounting base 2 and the second mounting base 3 are mounted on the frame 1; wherein the first mounting base 2 is located on one side of the second mounting base 3, and there is a certain distance between them. Figure 1 As shown, the first mounting base 2 is located to the left of the second mounting base 3.

[0063] Reference Figure 2 and Figure 3 A first conveyor belt 4 is mounted on the first mounting base 2, and the first conveyor belt 4 is used to carry and transport PCB boards. A second conveyor belt 5 is mounted on the second mounting base 3, and the second conveyor belt 5 is parallel to the first conveyor belt 4. The second conveyor belt 5 is also used to carry and transport PCB boards. The conveying surface of the second conveyor belt 5 is on the same horizontal plane as the conveying surface of the first conveyor belt 4, and the first conveyor belt 4 and the second conveyor belt 5 transport in the same direction.

[0064] A first support plate 6 and a first side block 7 are respectively installed on the first mounting base 2. The first support plate 6 is fixedly connected to the first mounting base 2 and located above the first conveyor belt 4. The long side of the first support plate 6 is parallel to the conveying direction of the first conveyor belt 4. The first side block 7 is fixedly connected to the first mounting base 2 and located above the first support plate 6. A first gap 10 is left between the first side block 7 and the first support plate 6. The height of the first gap 10 is slightly greater than the thickness of a single PCB board.

[0065] The second mounting base 3 is respectively equipped with a second support plate 8 and a second side block 9. The second support plate 8 is fixedly connected to the second mounting base 3 and is located above the second conveyor belt 5. The long side of the second support plate 8 is parallel to the conveying direction of the second conveyor belt 5, and the support surface of the second support plate 8 is on the same horizontal plane as the support surface of the first support plate 6.

[0066] The second side block 9 is fixedly connected to the second mounting base 3 and located above the second support plate 8. The second side block 9 is located to the right of the first side block 7 and the two are arranged opposite to each other. A second gap 11 is left between the second side block 9 and the second support plate 8. The height of the second gap 11 is the same as the height of the first gap 10.

[0067] A first push plate 12 is movably disposed within the first gap 10. The first push plate 12 moves horizontally in the direction of approaching or moving away from the second side block 9 to push the PCB board. A second push plate 13 is movably disposed within the second gap 11. The second push plate 13 moves horizontally in the direction of approaching or moving away from the first side block 7 to push the PCB board as well.

[0068] In addition, refer to Figure 4 The frame 1 is also equipped with a drive unit 14 and a pallet 15. The drive unit 14 is located between the first mounting base 2 and the second mounting base 3, and is close to the second mounting base 3. The length direction of the pallet 15 is parallel to the conveying direction of the first conveyor belt 4. The pallet 15 is mounted on the drive unit 14, and the drive unit 14 is used to control the pallet 15 to move up and down in the vertical direction.

[0069] Before loading, workers stack several PCB boards between the first side stop 7 and the second side stop 9. At this time, the two sides of the PCB boards rest on the first support plate 6 and the second support plate 8 respectively, and the first support plate 6 and the second support plate 8 together provide support for the PCB boards. Since the height of the first gap 10 and the second gap 11 is slightly greater than the thickness of a single PCB board, the PCB board can enter the first gap 10 or the second gap 11.

[0070] When PCB boards need to be loaded, the drive device 14 first controls the pallet 15 to rise, so that the upper surface of the pallet 15 is higher than the conveying surface of the second conveyor belt 5 and lower than the supporting surface of the second support plate 8. Then, the second push plate 13 located in the second gap 11 moves horizontally toward the first push plate 12 to push the lowest PCB board, causing it to detach from the support of the second support plate 8. At the same time, a portion of the PCB board is pushed into the first gap 10.

[0071] At this time, the bottom PCB board will sag under its own weight and the pressure of the other PCB boards above it, so that the side of the PCB board closest to the second side block 9 rests on the support plate 15. The support plate 15 supports the PCB board and prevents the PCB board from being broken by the force.

[0072] Next, the first push plate 12, located within the first gap 10, moves horizontally towards the second push plate 13, pushing the PCB board out of the first gap 10 and removing it from the support of the first support plate 6. Under the influence of gravity, the side of the PCB board closest to the first side stop 7 falls above the conveying surface of the first conveyor belt 4, causing the PCB board to tilt. Because the side of the PCB board closest to the second side stop 9 is restricted by the second support plate 8, the PCB board remains below the support surface of the second support plate 8.

[0073] Finally, the control tray 15 is lowered to a position flush with the second conveyor belt 5, so that the side of the PCB board closest to the second side stop 9 falls onto the second conveyor belt 5, completing the conveying of a single PCB board.

[0074] Throughout the process, the operator only needs to place several PCB boards on the first support plate 6 and the second support plate 8, and then repeat the above operation to complete the loading of a single PCB board. Unlike the existing technology, there is no need to prepare a storage box or insert each PCB board into the storage box individually, which makes it convenient to load PCB boards, improves the degree of automation, and reduces the labor intensity of personnel.

[0075] Specifically, the drive device 14 is a pneumatic cylinder or a hydraulic cylinder, and the piston rod of the pneumatic cylinder or hydraulic cylinder is fixedly connected to the support plate 15.

[0076] When the piston rod of the pneumatic or hydraulic cylinder extends, it moves the support plate 15 vertically upward, raising its vertical height so that it is positioned between the second support plate 8 and the second conveyor belt 5. When the piston rod of the pneumatic or hydraulic cylinder retracts, it moves the support plate 15 vertically downward, lowering its vertical height.

[0077] According to some embodiments of this application, optionally, please refer to Figure 4 A first drive unit 16 and a second drive unit 17 are respectively installed on the frame 1. The first drive unit 16 is fixed on the first mounting base 2 and connected to the first push plate 12. The first drive unit 16 is used to control the first push plate 12 to move linearly in the direction of approaching or moving away from the second push plate 13.

[0078] The second driving component 17 is fixed on the second mounting base 3 and connected to the second push plate 13. The second driving component 17 is used to control the second push plate 13 to move linearly in a direction that approaches or moves away from the first push plate 12. The first driving component 16 and the second driving component 17 are conventional components in the prior art, such as cylinders or hydraulic cylinders, and will not be described in detail here.

[0079] According to some embodiments of this application, optionally, please refer to Figure 4 An elastic layer 18 is provided on both the side of the first push plate 12 facing the second push plate 13 and the side of the second push plate 13 facing the first push plate 12. The elastic layer 18 is made of an elastic material, including but not limited to rubber, sponge, and latex.

[0080] When the PCB board needs to be pushed, the elastic layer 18 replaces the first pusher plate 12 or the second pusher plate 13 to make contact with the PCB board. Because the elastic layer 18 is elastic, it can act as a buffer, reducing the force on the PCB board when it is pushed.

[0081] Optionally, according to some embodiments of this application, please refer to Figure 4 An inclined portion 19 is provided on the second support plate 8, and the plane formed by the inclined portion 19 and the support surface of the second support plate 8 is an acute angle; at the same time, the thickness of the second support plate 8 where the inclined portion 19 is located gradually increases in the direction away from the first support plate 6.

[0082] After the second pusher plate 13 pushes the bottommost PCB board, one side of the PCB board falls onto the surface of the support plate 15. When the first pusher plate 12 pushes the PCB board out of the first gap 10, the PCB board will move in the direction close to the second support plate 8; when the PCB board moves, it will come into contact with the inclined part 19, which acts as a guide, so that the PCB board moves along the inclined surface of the inclined part 19, improving the smoothness of the PCB board movement.

[0083] Optionally, according to some embodiments of this application, please refer to Figure 5 A fixed plate 20 is also fixedly connected to the piston rod of the pneumatic or hydraulic cylinder. The length direction of the fixed plate 20 is parallel to the conveying direction of the first conveyor belt 4. The long side of the support plate 15 is rotatably connected to the fixed plate 20, so that a planar angle is formed between the support plate 15 and the fixed plate 20. A receiving groove 21 is formed on the surface of the fixed plate 20. A screw 22 and a slider 23 are respectively installed in the receiving groove 21. The screw 22 is rotatably connected to the fixed plate 20, and the rotation axis of the screw 22 is parallel to the width direction of the fixed plate 20. The slider 23 is screwed to the screw 22 and abuts against the bottom of the receiving groove 21. The slider 23 and the support plate 15 are connected by a connecting strip 24, and the two ends of the connecting strip 24 are respectively hinged to the slider 23 and the support plate 15.

[0084] When the control screw 22 rotates, the slider 23 moves along the screw 22. Under the action of the connecting strip 24, the slider 23, as it moves, can push the support plate 15 to rotate, thereby changing the plane angle between the support plate 15 and the fixed plate 20. Because the PCB board will tilt at a certain angle when it lands on the support plate 15 after the second push plate 13 pushes it off the second support plate 8, the tilt angle of the support plate 15 can be adjusted according to the actual situation before loading, so that the support plate 15 can better support the PCB board.

[0085] Optionally, according to some embodiments of this application, please refer to Figure 6The frame 1 is equipped with a first lead screw 25, a first guide rod 26, a second lead screw 27, a second guide rod 28, and a drive motor 29. The first lead screw 25 is horizontally positioned, with one end mounted on the frame 1 and connected to the output shaft of the drive motor 29, and the other end rotatably connected to the second mounting base 3, such that the rotation axis of the first lead screw 25 is perpendicular to the conveying direction of the first conveyor belt 4. The first mounting base 2 is screwed onto the first lead screw 25. When the drive motor 29 drives the first lead screw 25 to rotate, the first mounting base 2 moves along the first lead screw 25 to move closer to or further away from the second mounting base 3, thereby adjusting the distance between the first mounting base 2 and the second mounting base 3.

[0086] When the first support plate 6 and the second support plate 8 are needed to support the PCB board, since the PCB board has different length and width specifications, the distance between the first mounting base 2 and the second mounting base 3 can be adjusted according to the actual situation in order to better place the PCB board.

[0087] The second lead screw 27 is parallel to the first lead screw 25. One end of the second lead screw 27 is rotatably connected to the second mounting base 3, and the other end is mounted on the frame 1. The first lead screw 25 and the second lead screw 27 are connected to the drive motor 29 through the transmission assembly 30. The transmission assembly 30 can be a belt drive or a chain drive. In this embodiment, chain drive will be used for explanation.

[0088] Reference Figure 7 The transmission assembly 30 includes a pair of sprockets 301 and a chain 302. One sprocket 301 is fixedly connected to the end of the first lead screw 25 away from the second mounting base 3, and the other sprocket 301 is fixedly connected to the end of the second lead screw 27 away from the second mounting base 3. The two sprockets 301 are connected together by the chain 302. The output shaft of the drive motor 29 is fixedly connected to the sprocket 301 connected to the first lead screw 25 to drive the sprocket 301 to rotate.

[0089] The second lead screw 27 and the first lead screw 25 serve the same purpose: to control the movement of the first mounting base 2. Under the linkage of the transmission assembly 30, the drive motor 29 can simultaneously control the first lead screw 25 and the second lead screw 27 to rotate in the same direction, eliminating the need for two separate drive motors 29 to control the rotation of the first lead screw 25 and the second lead screw 27.

[0090] Both the first guide rod 26 and the second guide rod 28 are parallel to the first lead screw 25. The first guide rod 26 is close to the first lead screw 25, and its two ends are fixed to the second mounting base 3 and the frame 1, respectively. The second guide rod 28 is close to the second lead screw 27, and its two ends are fixed to the second mounting base 3 and the frame 1, respectively. Both the first guide rod 26 and the second guide rod 28 pass through the first mounting base 2.

[0091] During the movement of the first mounting base 2, both the first guide rod 26 and the second guide rod 28 can play a role in limiting and guiding, making the first mounting base 2 move more smoothly and improving the stability of the first mounting base 2 during movement.

[0092] Optionally, according to some embodiments of this application, please refer to Figure 8 A bellows cover 31 is also fitted onto the first lead screw 25. One end of the bellows cover 31 is fixed to the frame 1, and the other end is fixed to the first mounting base 2. The bellows cover 31 is telescopic, and the telescopic direction is parallel to the length direction of the first lead screw 25. Similarly, a bellows cover 31 can also be fitted onto the second lead screw 27.

[0093] The bellows cover 31 protects the first lead screw 25, reducing direct contact between external dust and other impurities and the lead screw 25, thus preventing any impact on the first lead screw 25's movement of the first mounting base 2. Furthermore, when the first mounting base 2 slides, the bellows cover 31 can extend or retract in the same direction as the first mounting base 2, without interfering with its normal movement.

[0094] According to some embodiments of this application, optionally, such as Figure 8 and Figure 9 As shown, a first positioning plate 32 and a second positioning plate 33 are also installed on the frame 1. Both the first positioning plate 32 and the second positioning plate 33 are rectangular and parallel to each other. The first positioning plate 32 and the second positioning plate 33 are arranged sequentially along the conveying direction of the first conveyor belt 4, and both are located between the first side stop 7 and the second side stop 9. The plane containing the second positioning plate 33 is perpendicular to the plane containing the first side stop 7, and both sides of the second positioning plate 33 are fixed to the first side stop 7 and the second side stop 9, respectively.

[0095] Several return springs 34 are also installed between the first positioning plate 32 and the second positioning plate 33. The two ends of the return springs 34 are fixedly connected to the first positioning plate 32 and the second positioning plate 33 respectively, and the elastic force direction of each return spring 34 is parallel to the conveying direction of the first conveyor belt 4.

[0096] Although the first side stop 7 and the second side stop 9 can limit the movement of the two sides of the PCB board, the other two sides of the PCB board lack positioning. When the operator stacks several PCB boards on the first support plate 6 and the second support plate 8, it is necessary to adjust the flatness of the PCB boards to align the edges between adjacent PCB boards.

[0097] The first positioning plate 32 serves as a positioning plane and can cooperate with the first side stop 7 and the second side stop 9 to restrict the three sides of the PCB board. When the PCB board is placed between the first side stop 7 and the second side stop 9, a pushing force can be directly applied to the PCB board, causing one side of the PCB board to abut against the plane of the first positioning plate 32, thereby adjusting the alignment of the PCB board.

[0098] Meanwhile, a return spring 34 is installed between the first positioning plate 32 and the second positioning plate 33, which acts as a buffer. When the operator accidentally applies too much force and pushes the PCB board onto the first positioning plate 32, the return spring 34 is compressed, allowing the first positioning plate 32 to retract a certain distance. Finally, under the elastic restoring force of the return spring 34, the first positioning plate 32 can return to its initial position.

[0099] The implementation principle of the PCB board loading device in this application embodiment is as follows: Before loading, the operator places several PCB boards on the first support plate 6 and the second support plate 8. During loading, the drive device 14 first controls the pallet 15 to rise between the second conveyor belt 5 and the second support plate 8, and then the second push plate 13 pushes the bottommost PCB board and removes it from the support of the second support plate 8; at this time, the side of the bottommost PCB board closest to the second side stop 9 rests on the pallet 15.

[0100] Next, the first pusher plate 12 pushes the PCB board, causing it to detach from the support of the first support plate 6. Finally, the control plate 15 is lowered to a position flush with the second conveyor belt 5, so that the PCB board falls onto the first conveyor belt 4 and the second conveyor belt 5, completing the conveying of a single PCB board. Throughout the entire operation, unlike existing technologies where each PCB board is individually inserted into a storage box, this method facilitates PCB board loading and reduces labor intensity.

[0101] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A PCB board loading device, characterized in that, It includes a first mounting base (2) and a second mounting base (3), the first mounting base (2) being located on one side of the second mounting base (3); a first conveyor belt (4) is provided on the first mounting base (2), and a second conveyor belt (5) is provided on the second mounting base (3), the first conveyor belt (4) and the second conveyor belt (5) conveying in the same direction; The first mounting base (2) is provided with a first support plate (6) and a first side block (7). The first support plate (6) is located above the first conveyor belt (4), and the first side block (7) is located above the first support plate (6). A first gap (10) is left between the first side block (7) and the first support plate (6). The second mounting base (3) is provided with a second support plate (8) and a second side block (9). The second support plate (8) is located above the second conveyor belt (5), and the support surface of the second support plate (8) is at the same horizontal plane as the support surface of the first support plate (6). The second side block (9) is located above the second support plate (8), and the second side block (9) is opposite to the first side block (7). A second gap (11) is left between the second side block (9) and the second support plate (8). A first push plate (12) is movably disposed within the first gap (10), and the first push plate (12) is used to push the PCB board; a second push plate (13) is movably disposed within the second gap (11), and the second push plate (13) is used to push the PCB board; a driving device (14) and a support plate (15) are respectively disposed between the first mounting base (2) and the second mounting base (3), the driving device (14) is close to the second mounting base (3), the support plate (15) is connected to the driving device (14), and the driving device (14) is used to control the support plate (15) to move up and down in the vertical direction; The driving device (14) is a pneumatic cylinder or a hydraulic cylinder, and the piston rod of the pneumatic cylinder or hydraulic cylinder is connected to the support plate (15); It also includes a fixed plate (20), a screw (22) and a slider (23). The fixed plate (20) is disposed on the piston rod. The support plate (15) is hinged to the fixed plate (20). The screw (22) is rotatably disposed on the fixed plate (20). The slider (23) is screwed to the screw (22). The slider (23) and the support plate (15) are connected by a connecting strip (24). The two ends of the connecting strip (24) are respectively hinged to the slider (23) and the support plate (15).

2. The PCB board loading device according to claim 1, characterized in that, It also includes a first driving member (16) and a second driving member (17). The first driving member (16) is disposed on the first mounting base (2) and connected to the first push plate (12). The first driving member (16) is used to control the first push plate (12) to move linearly in a direction close to or away from the second push plate (13). The second driving member (17) is disposed on the second mounting base (3) and connected to the second push plate (13). The second driving member (17) is used to control the second push plate (13) to move linearly in a direction close to or away from the first push plate (12).

3. The PCB board loading device according to claim 1, characterized in that, The second support plate (8) is provided with an inclined portion (19), so that the thickness of the second support plate (8) gradually increases in the direction away from the first support plate (6).

4. The PCB board loading device according to claim 1, characterized in that, It also includes a frame (1), a first lead screw (25), a first guide rod (26) and a drive motor (29), and the second mounting base (3) is disposed on the frame (1), and the distance between the first mounting base (2) and the second mounting base (3) is adjustable; One end of the first lead screw (25) is mounted on the frame (1) and connected to the drive motor (29), and the other end is rotatably connected to the second mounting base (3). The first mounting base (2) is screwed onto the first lead screw (25). The first guide rod (26) is parallel to the first lead screw (25). The two ends of the first guide rod (26) are respectively connected to the second mounting base (3) and the frame (1). The first guide rod (26) passes through the first mounting base (2).

5. A PCB board loading device according to claim 4, characterized in that, It also includes a second lead screw (27) and a second guide rod (28). The second lead screw (27) is parallel to the first lead screw (25). The second lead screw (27) is rotatably connected to the second mounting base (3). The first lead screw (25) and the second lead screw (27) are connected to the drive motor (29) through a transmission assembly (30). The first mounting base (2) is screwed onto both the first lead screw (25) and the second lead screw (27). The second guide rod (28) is parallel to the first guide rod (26) and passes through the first mounting base (2).

6. A PCB board loading device according to claim 4, characterized in that, It also includes a bellows cover (31), one end of which is disposed on the frame (1) and the other end is disposed on the first mounting base (2), and the first lead screw (25) is located inside the bellows cover (31).

7. A PCB board loading device according to claim 1, characterized in that, It also includes a first positioning plate (32), a second positioning plate (33), and several return springs (34). The first positioning plate (32) and the second positioning plate (33) are parallel to each other and are arranged sequentially along the conveying direction of the first conveyor belt (4). The first positioning plate (32) and the second positioning plate (33) are both arranged between the first side stop (7) and the second side stop (9). The first positioning plate (32) is adjustablely arranged on the second positioning plate (33). Each of the return springs (34) is spaced apart between the first positioning plate (32) and the second positioning plate (33). The elastic direction of each of the return springs (34) is parallel to the conveying direction of the first conveyor belt (4).

8. A PCB board loading device according to claim 1, characterized in that, It also includes an elastic layer (18), on the side of the first push plate (12) facing the second push plate (13) the elastic layer (18) is provided, and on the side of the second push plate (13) facing the first push plate (12) the elastic layer (18) is also provided.

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