Feeding and discharging mechanism of SMT plate discharging machine

By designing and coordinating components such as the lifting frame, L-shaped board, and pushing assembly, the problem of board jamming during the SMT unloading machine's circuit board transportation process was solved, enabling rapid board feeding and improved adaptability, thereby enhancing the equipment's working efficiency and stability.

CN224242127UActive Publication Date: 2026-05-15SHENZHEN HUAYUAN AUTOMATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HUAYUAN AUTOMATION EQUIP CO LTD
Filing Date
2025-07-22
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing SMT unloading machines are prone to board jamming during circuit board transport, resulting in low work efficiency.

Method used

An infeed and outfeed mechanism for an SMT unloading machine was designed, including components such as a lifting frame, an L-shaped plate, a limit plate, a pushing component, and a servo motor. Through the cooperation of a screw and an adjustment knob, the circuit board can be quickly fed in and adapted to circuit boards of different sizes and thicknesses.

Benefits of technology

It effectively reduces board jamming during circuit board transportation, improves work efficiency, enhances equipment flexibility and adaptability, and reduces manual intervention and equipment wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of SMT (surface mount technology) plate unloading machines, and particularly relates to a feeding and discharging mechanism of an SMT plate unloading machine, which comprises a plate unloading machine body. A lifting frame is arranged on the plate unloading machine body; a plate collecting frame is placed in the lifting frame; a platen is fixedly connected to the side wall of the plate discharging machine body. A notch is formed in the top of the table plate; the top of the table plate is fixedly connected with two side plates which are symmetrically arranged; the side wall of the side plate is in threaded connection with a first screw rod; one end, far away from the notch, of the first screw rod is fixedly connected with an adjusting handle; the end, close to the notch, of the first screw is rotationally connected with an L-shaped plate. A limiting plate is arranged on the side wall of the L-shaped plate; by means of the structure, the circuit board can be rapidly fed into the board collecting frame, the situation that the circuit board is clamped in the conveying process is reduced, and therefore the working efficiency is improved, the position of the L-shaped board can be adjusted, and therefore the board discharging machine can adapt to the circuit boards of different sizes, and the flexibility and adaptability of the board discharging machine are greatly improved.
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Description

Technical Field

[0001] This utility model belongs to the field of SMT unloading machine technology, specifically an infeed and discharge mechanism for an SMT unloading machine. Background Technology

[0002] Circuit boards are an indispensable core component in electronic devices. They mainly consist of four parts: substrate, conductive layer, solder mask layer, and silkscreen layer. They provide mechanical support and electrical connection for electronic components and are the "skeleton" for electronic devices to realize their functions. In the circuit board production process, SMT unpacking machine is an essential piece of equipment.

[0003] SMT unloading machines are devices used in surface mount technology (SMT) production lines to automatically receive, temporarily store, and sort circuit boards (PCBs) that have completed the chip mounting or soldering processes. They are a key component of the SMT production line automation process and are usually connected to equipment such as printers, pick-and-place machines, and reflow ovens. Located at the end of the production line, they are responsible for replacing manual labor in the "offline" processing of circuit boards.

[0004] In existing SMT unloading machines, circuit boards are often mounted on a track for transport. When the circuit board approaches the receiving rack, it is pushed into the receiving rack. However, the speed at both ends of the track may be inconsistent during the transport of the circuit board, which can cause the circuit board to jam.

[0005] Therefore, this utility model provides a feeding and discharging mechanism for an SMT unloading machine. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The feeding and discharging mechanism of an SMT unloading machine according to this utility model includes an unloading machine body; a lifting frame is provided on the unloading machine body; a receiving frame is placed inside the lifting frame; a platform is fixedly connected to the side wall of the unloading machine body; a slot is opened on the top of the platform; two symmetrically arranged side plates are fixedly connected to the top of the platform; a first screw is threadedly connected to the side wall of the side plate; an adjusting handle is fixedly connected to the end of the first screw away from the slot; an L-shaped plate is rotatably connected to the end of the first screw near the slot; a limiting plate is provided on the side wall of the L-shaped plate; a pushing component is provided at the bottom of the unloading machine body, and the pushing component is distributed at a position corresponding to the slot; through the above structure, the circuit board can be quickly fed into the receiving frame, reducing the jamming of the circuit board during the transportation process.

[0008] Preferably, the L-shaped plate has a groove on its side wall; a second screw is rotatably connected inside the groove; an adjustment knob is rotatably connected to the top of the L-shaped plate, and the adjustment knob is connected to the top end of the second screw; a first connecting block is threadedly connected to the middle of the second screw; the first connecting block is fixedly connected to the side wall of the limiting plate; two symmetrically arranged sliding grooves are formed on the side wall of the L-shaped plate; a slider is slidably connected inside the sliding groove; the slider is fixedly connected to the side wall of the limiting plate; with the above structure, the position of the limiting plate can be effectively adjusted, so that the L-shaped plate and the limiting plate can adapt to circuit boards of different thicknesses.

[0009] Preferably, the pushing component includes a slotted plate; the slotted plate is fixedly connected to the bottom of the platform; a servo motor is fixedly connected to the side wall of the slotted plate; a lead screw is rotatably connected inside the slotted plate, and the lead screw is connected to the output end of the servo motor; a second connecting block is threadedly connected to the middle of the lead screw; an electric push rod is fixedly connected to the top of the second connecting block; a push block is fixedly connected to the output end of the electric push rod; with the above structure, the circuit board can be quickly pushed into the board receiving frame, reducing the need for manual pushing.

[0010] Preferably, the side wall of the side plate is slidably connected to two symmetrically arranged guide rods; the ends of the guide rods are fixed to the side wall of the L-shaped plate; a limit block is fixed to the end of the guide rod away from the L-shaped plate; through the above structure, the guide rods can effectively guide the L-shaped plate, so that the L-shaped plate remains stable during movement.

[0011] Preferably, a protective pad is adhered to the side wall of the push block; the protective pad is made of rubber; with the above structure, the protective pad can effectively protect the circuit board when the push block comes into contact with the circuit board.

[0012] Preferably, two symmetrically arranged triangular plates are fixedly connected to the bottom of the platform; the triangular plates are fixed to the side wall of the lower plate machine body; through the above structure, the triangular plates can effectively support the platform and reduce the platform from shaking or tilting.

[0013] Preferably, a protective cover is fixed to the side wall of the slot plate; the protective cover is positioned corresponding to the servo motor; through the above structure, the protective cover can effectively protect the servo motor, thereby extending the service life of the servo motor.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The feeding and discharging mechanism of the SMT unloading machine described in this utility model, by rotating the adjustment handle, drives the first screw to rotate simultaneously. The first screw moves horizontally, thus pushing the L-shaped plate. After adjusting the L-shaped plate to a suitable distance, the circuit board is inserted between the L-shaped plate and the limiting plate. The pushing component then pushes the circuit board into the receiving rack on the lifting frame. This structure can quickly send the circuit board into the receiving rack, reducing the chance of jamming during circuit board transport, thereby improving work efficiency. Furthermore, the position of the L-shaped plate is adjustable, thus accommodating circuit boards of different sizes, greatly improving the flexibility and adaptability of the unloading machine.

[0016] 2. The feeding and discharging mechanism of the SMT unloading machine described in this utility model, by rotating the adjustment knob, drives the second screw to rotate in the groove. The rotation of the second screw drives the first connecting block to move. The movement of the first connecting block drives the limiting plate to move. This structure can effectively adjust the position of the limiting plate, so that the L-shaped plate and the limiting plate can adapt to circuit boards of different thicknesses, effectively improving the flexibility and adaptability of the unloading machine. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the first screw in this utility model;

[0020] Figure 3 This is a cross-sectional view of the L-shaped plate in this utility model;

[0021] Figure 4 This is a cross-sectional view of the groove plate in this utility model.

[0022] In the diagram: 1. Lowering machine body; 11. Lifting frame; 12. Platform; 13. Side plate; 14. First screw; 15. Adjusting handle; 16. L-shaped plate; 17. Limiting plate; 18. Groove; 19. Pushing assembly; 2. Groove; 21. Second screw; 22. Adjusting knob; 23. First connecting block; 24. Slide groove; 25. Sliding block; 3. Groove plate; 31. Lead screw; 32. Servo motor; 33. Second connecting block; 34. Electric push rod; 35. Push block; 4. Guide rod; 41. Limiting block; 5. Protective pad; 6. Triangular plate; 7. Protective cover. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 3 As shown in the embodiment of this utility model, the feeding and discharging mechanism of an SMT unloading machine includes an unloading machine body 1; a lifting frame 11 is provided on the unloading machine body 1; a receiving frame is placed inside the lifting frame 11; a platform 12 is fixedly connected to the side wall of the unloading machine body 1; a slot 18 is opened on the top of the platform 12; two symmetrically arranged side plates 13 are fixedly connected to the top of the platform 12; a first screw 14 is threadedly connected to the side wall of the side plate 13; an adjusting handle 15 is fixedly connected to the end of the first screw 14 away from the slot 18; an L-shaped plate 16 is rotatably connected to the end of the first screw 14 near the slot 18; a limit plate 17 is provided on the side wall of the L-shaped plate 16; a pushing component 19 is provided at the bottom of the unloading machine body 1, and the pushing components 19 are distributed in a manner corresponding to the slot 18. At the designated position; during operation, rotating the adjustment handle 15 causes the first screw 14 to rotate, which in turn moves the first screw 14 horizontally, thereby pushing the L-shaped plate 16 to move. After adjusting the L-shaped plate 16 to a suitable distance, the circuit board is inserted between the L-shaped plate 16 and the limiting plate 17. The pushing component 19 pushes the circuit board into the receiving rack on the lifting frame 11. Through the above structure, the circuit board can be quickly sent into the receiving rack, reducing the possibility of jamming during the circuit board transportation process, thereby improving work efficiency. Furthermore, the position of the L-shaped plate 16 is adjustable, which can accommodate circuit boards of different sizes, greatly improving the flexibility and adaptability of the unloading machine.

[0026] like Figure 2 and Figure 3As shown, the L-shaped plate 16 has a groove 2 on its side wall; a second screw 21 is rotatably connected inside the groove 2; an adjustment knob 22 is rotatably connected to the top of the L-shaped plate 16, and the adjustment knob 22 is connected to the top end of the second screw 21; a first connecting block 23 is threadedly connected to the middle of the second screw 21; the first connecting block 23 is fixedly connected to the side wall of the limiting plate 17; two symmetrically arranged sliding grooves 24 are opened on the side wall of the L-shaped plate 16; a slider 25 is slidably connected inside the sliding grooves 24; the slider 25 is fixedly connected to the side wall of the limiting plate 17. During operation, rotating the adjustment knob 22 causes the second screw 21 to rotate within the groove 2. Simultaneously, the rotation of the second screw 21 moves the first connecting block 23, which in turn moves the limiting plate 17. At this time, the slider 25 slides inside the slide groove 24. Through the above structure, the position of the limiting plate 17 can be effectively adjusted, allowing the L-shaped plate 16 and the limiting plate 17 to adapt to circuit boards of different thicknesses, effectively improving the flexibility and adaptability of the unloading machine.

[0027] like Figure 1 and Figure 4 As shown, the pushing assembly 19 includes a slotted plate 3; the slotted plate 3 is fixedly connected to the bottom of the platform 12; a servo motor 32 is fixedly connected to the side wall of the slotted plate 3; a lead screw 31 is rotatably connected inside the slotted plate 3, and the lead screw 31 is connected to the output end of the servo motor 32; a second connecting block 33 is threadedly connected to the middle of the lead screw 31; an electric push rod 34 is fixedly connected to the top of the second connecting block 33; a push block 35 is fixedly connected to the output end of the electric push rod 34; during operation, the circuit board is inserted between the L-shaped plate 16 and the limiting plate 17, the electric push rod 34 is activated, and the electric push rod 34 drives the push block 35 to advance. The vertical movement of the pusher block 35 ensures that it is at the same height as the circuit board. Then, the servo motor 32 is activated, which drives the lead screw 31 to rotate inside the slot plate 3. As the lead screw 31 rotates, it drives the second connecting block 33 to move horizontally. The movement of the second connecting block 33 drives the pusher block 35 to push the circuit board. Through the above structure, the circuit board can be quickly pushed into the receiving rack, reducing the need for manual pushing. This allows the circuit board to enter the receiving rack in a stable and accurate manner, and also reduces the labor intensity of the workers.

[0028] like Figure 1 and Figure 2As shown, two symmetrically arranged guide rods 4 are slidably connected to the side wall of the side plate 13; the ends of the guide rods 4 are fixed to the side wall of the L-shaped plate 16; a limiting block 41 is fixed to the end of the guide rod 4 away from the L-shaped plate 16; during operation, when the L-shaped plate 16 moves, the L-shaped plate 16 will drive the guide rods 4 to slide on the side plate 13, and the limiting block 41 limits the sliding distance of the guide rods 4. Through the above structure, the guide rods 4 can effectively guide the L-shaped plate 16, so that the L-shaped plate 16 remains stable during movement, thereby improving the stability of the L-shaped plate 16 structure.

[0029] like Figure 4 As shown, a protective pad 5 is bonded to the side wall of the push block 35; the protective pad 5 is made of rubber; during operation, the push block 35 may cause wear to the circuit board when it pushes it. The protective pad 5 is made of rubber and has a soft texture. Through the above structure, the protective pad 5 can effectively protect the circuit board when the push block 35 contacts the circuit board, reduce the wear of the push block 35 on the circuit board, and thus improve the safety of the structure.

[0030] like Figure 1 As shown, two symmetrically arranged triangular plates 6 are fixed to the bottom of the platform 12; the triangular plates 6 are fixed to the side wall of the lower plate machine body 1; during operation, the structure of the platform 12 may not be stable enough, so the triangular plates 6 are set between the platform 12 and the lower plate machine body 1. The shape of the triangular plates 6 is relatively stable. Through the above structure, the triangular plates 6 can effectively support the platform 12, reduce the shaking or tilting of the platform 12, and also improve the deformation resistance of the platform 12.

[0031] like Figure 1 As shown, a protective cover 7 is fixed to the side wall of the slot plate 3; the protective cover 7 is set at a position corresponding to the servo motor 32; during operation, the protective cover 7 is set outside the servo motor 32. Through the above structure, the protective cover 7 can effectively protect the servo motor 32, reduce the wear caused by dust, hair and other impurities entering the servo motor 32, and thus extend the service life of the servo motor 32.

[0032] During operation, rotating the adjustment handle 15 simultaneously rotates the first screw 14, which moves horizontally, thus pushing the L-shaped plate 16. After adjusting the L-shaped plate 16 to a suitable distance, the circuit board is inserted between the L-shaped plate 16 and the limiting plate 17. The pushing component 19 then pushes the circuit board into the receiving rack on the lifting frame 11. This structure allows for rapid feeding of the circuit board into the receiving rack, reducing jamming during circuit board transport and improving work efficiency. Furthermore, the position of the L-shaped plate 16 is adjustable to accommodate circuit boards of different sizes, greatly enhancing the flexibility and adaptability of the unloading machine. Rotating the adjustment knob 22 adjusts the position of the L-shaped plate 16. When the knob 22 is rotated, it drives the second screw 21 to rotate within the groove 2. Simultaneously, the rotation of the second screw 21 moves the first connecting block 23, which in turn moves the limiting plate 17. At this time, the slider 25 slides within the slide groove 24. This structure effectively adjusts the position of the limiting plate 17, allowing the L-shaped plate 16 and the limiting plate 17 to adapt to circuit boards of different thicknesses, effectively improving the flexibility and adaptability of the unloading machine. The circuit board is inserted between the L-shaped plate 16 and the limiting plate 17. The electric push rod 34 is activated, driving the push block 35 to move vertically, ensuring the push block 35 is at the same height as the circuit board. Then, the servo motor 32 is activated, driving... The lead screw 31 rotates inside the slot plate 3. Simultaneously, the lead screw 31 drives the second connecting block 33 to move horizontally. This movement of the second connecting block 33, in turn, drives the push block 35 to push the circuit board. This structure allows the circuit board to be quickly pushed into the receiving rack, reducing manual pushing and ensuring the circuit board enters the receiving rack smoothly and accurately, thus reducing the workload of workers. When the L-shaped plate 16 moves, it drives the guide rod 4 to slide on the side plate 13. The limiting block 41 limits the sliding distance of the guide rod 4. This structure effectively guides the L-shaped plate 16, ensuring its stability during movement and improving the efficiency of the L-shaped plate. To ensure the stability of the forming plate 16 structure, and to prevent wear on the circuit board when the pusher block 35 pushes it, a protective pad 5 is provided on the pusher block 35. The protective pad 5 is made of soft rubber. This structure effectively protects the circuit board when the pusher block 35 contacts it, reducing wear and improving structural safety. The platform 12 structure may not be stable enough. A triangular plate 6 is provided between the platform 12 and the lower platen body 1. The triangular plate 6 has a stable shape and effectively supports the platform 12, reducing wobbling or tilting and improving its resistance to deformation. A protective cover 7 is provided outside the servo motor 32. Through the above structure...The protective cover 7 effectively protects the servo motor 32, reducing the entry of dust, hair, and other impurities into the servo motor 32 and preventing wear, thereby extending the service life of the servo motor 32.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding and discharging mechanism for an SMT unloading machine, characterized in that: The machine includes a lowering machine body (1); a lifting frame (11) is provided on the lowering machine body (1); a receiving frame is placed inside the lifting frame (11); a platform (12) is fixedly connected to the side wall of the lowering machine body (1); a slot (18) is opened on the top of the platform (12); two symmetrically arranged side plates (13) are fixedly connected to the top of the platform (12); a first screw (14) is threadedly connected to the side wall of the side plate (13); an adjusting handle (15) is fixedly connected to the end of the first screw (14) away from the slot (18); an L-shaped plate (16) is rotatably connected to the end of the first screw (14) near the slot (18); a limit plate (17) is provided on the side wall of the L-shaped plate (16); a pushing component (19) is provided at the bottom of the lowering machine body (1), and the pushing component (19) is distributed at the position corresponding to the slot (18).

2. The feeding and discharging mechanism of an SMT unloading machine according to claim 1, characterized in that: The L-shaped plate (16) has a groove (2) on its side wall; a second screw (21) is rotatably connected inside the groove (2); an adjustment knob (22) is rotatably connected to the top of the L-shaped plate (16), and the adjustment knob (22) is connected to the top of the second screw (21); a first connecting block (23) is threadedly connected to the middle of the second screw (21); the first connecting block (23) is fixedly connected to the side wall of the limiting plate (17); the L-shaped plate (16) has two symmetrically arranged sliding grooves (24) on its side wall; a slider (25) is slidably connected inside the sliding groove (24); the slider (25) is fixedly connected to the side wall of the limiting plate (17).

3. The feeding and discharging mechanism of an SMT unloading machine according to claim 1, characterized in that: The pushing component (19) includes a slotted plate (3); the slotted plate (3) is fixed to the bottom of the platform (12); a servo motor (32) is fixed to the side wall of the slotted plate (3); a lead screw (31) is rotatably connected inside the slotted plate (3), and the lead screw (31) is connected to the output end of the servo motor (32); a second connecting block (33) is threaded to the middle of the lead screw (31); an electric push rod (34) is fixed to the top of the second connecting block (33); a push block (35) is fixed to the output end of the electric push rod (34).

4. The feeding and discharging mechanism of an SMT unloading machine according to claim 1, characterized in that: The side wall of the side plate (13) is slidably connected to two symmetrically arranged guide rods (4); the end of the guide rod (4) is fixed to the side wall of the L-shaped plate (16); the end of the guide rod (4) away from the L-shaped plate (16) is fixed to a limit block (41).

5. The feeding and discharging mechanism of an SMT unloading machine according to claim 3, characterized in that: The side wall of the pusher (35) is bonded with a protective pad (5); the protective pad (5) is made of rubber.

6. The feeding and discharging mechanism of an SMT unloading machine according to claim 1, characterized in that: The bottom of the platform (12) is fixed with two symmetrically arranged triangular plates (6); the triangular plates (6) are fixed to the side wall of the lower plate machine body (1).

7. The feeding and discharging mechanism of an SMT unloading machine according to claim 3, characterized in that: The side wall of the slot plate (3) is fixed with a protective cover (7); the protective cover (7) is set at a position corresponding to the servo motor (32).