Efficient automatic pin machine with improved structure

Abstract

The efficient automatic pin machine with the improved structure comprises an automatic pin mechanism, an automatic feeding mechanism and an automatic stacking mechanism, the automatic feeding mechanism comprises a first machine frame, two driving motors are fixedly connected to the first machine frame, the output ends of the driving motors are fixedly connected with driving arms, and the driving arms are fixedly connected with the second machine frame. A connecting piece is rotationally connected to the driving arm, and a support is rotationally connected to the connecting piece. The pin machine is improved, full-automatic pin insertion of the circuit board can be achieved, an operator does not need to conduct alignment feeding and taking on the circuit board manually, the efficiency of pin insertion of the circuit board is effectively improved, errors generated by manual operation can be reduced, the pin insertion position of the circuit board can be accurately positioned and aligned, and the pin insertion efficiency of the circuit board is improved. And the circuit board can be limited, deviation of the circuit board in the pin inserting process is prevented, the precision of the circuit board pin is effectively improved, and the quality of the circuit board pin is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of pinning machine technology, specifically to a high-efficiency automatic pinning machine with an improved structure. Background Technology

[0002] Circuit boards are a common material in electronic devices. During the production and processing of some circuit boards, two circuit boards need to be connected together, which requires the use of a pinning machine to fix the two circuit boards together. The pinning machine fixes the circuit board by nailing pins into the two circuit boards.

[0003] Existing circuit board pinning machines require operators to manually stack two circuit boards together, align their corners, and then push them into the pinning machine for pinning. After pinning, the pinned circuit boards need to be manually removed and stacked on a stacking rack. This process is cumbersome, resulting in low efficiency and a high risk of operational errors, leading to misalignment of the pinned circuit boards and affecting the pinning quality. Summary of the Invention

[0004] The purpose of this invention is to provide a highly efficient automatic pinning machine with an improved structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a high-efficiency automatic pinning machine with an improved structure, including an automatic pinning mechanism, an automatic feeding mechanism, and an automatic palletizing mechanism. The automatic feeding mechanism includes a first frame, on which two drive motors are fixedly connected. Drive arms are fixedly connected to the output ends of the drive motors, and connecting members are rotatably connected to the drive arms. A bracket is rotatably connected to the connecting member, and the bracket is rotatably connected to the first frame. A suction cup picking robot is fixedly connected to the lower end of the connecting member. Two lifting racks corresponding to the two suction cup picking robots are fixedly connected to the first frame. A first conveying assembly is fixedly connected inside the first frame. The structure includes a second frame, on which two second material conveying components are fixedly connected. The second material conveying components are connected to a first material conveying component. Two automatic pinning devices are symmetrically fixedly connected to the second frame. A positioning component is fixedly connected to the second frame. The automatic palletizing mechanism includes a third frame, on which a guide rail is fixedly connected. A linear drive component is fixedly connected to the guide rail. A telescopic electric push rod is connected between the linear drive component and the guide rail. An automatic material picking and palletizing mechanism is fixedly connected to the output end of the telescopic electric push rod. A conveyor belt corresponding to the second material conveying components is fixedly connected to the third frame. A lifting palletizing frame is installed on the third frame.

[0006] Furthermore, the positioning component includes a fixed plate fixedly connected to the second frame, a first electric push rod fixedly connected to the fixed plate, a fixed positioning plate fixedly connected to the output end of the first electric push rod, a vertical plate fixedly connected to the second frame, a servo motor fixedly connected to the vertical plate, an adjusting screw fixedly connected to the output end of the servo motor, a movable plate threaded onto the wall of the adjusting screw, a guide rod fixedly connected to the second frame, a guide hole provided on the movable plate, the guide rod passing through the guide hole through the movable plate, a second electric push rod fixedly connected to the movable plate, and a movable positioning plate fixedly connected to the output end of the second electric push rod.

[0007] Furthermore, the linear drive assembly includes two fixed frames fixedly connected to the guide rail, each fixed frame having a rotating shaft rotatably connected to it, and a pulley fixedly fitted on the rotating shaft. A first motor is fixedly connected to one of the fixed frames, and the output end of the first motor is fixedly connected to the rotating shaft. The same belt is wound around the two pulleys, and the belt is fixedly connected to the automatic material picking and stacking mechanism.

[0008] Furthermore, the first feeding assembly and the second feeding assembly have the same structure. The second feeding assembly includes a plurality of rotating shafts rotatably connected to the second frame. A second motor connected to the rotating shafts is fixedly connected to the second frame. A sprocket is fixedly sleeved on each of the plurality of rotating shafts. The same chain is wound around the plurality of sprockets. A plurality of feeding rollers are fixedly sleeved on each of the plurality of rotating shafts.

[0009] Furthermore, the automatic material picking and stacking mechanism includes a third motor fixedly connected to the output end of the telescopic electric push rod. The output end of the third motor is fixedly connected to a crossbeam. Two lead screw and nut drivers are symmetrically fixedly connected to the crossbeam. Each of the two lead screw and nut drivers is fixedly connected to a sliding plate. Each of the two sliding plates is fixedly connected to a torsion motor. A gearbox is fixedly connected to the sliding plate. The torsion motor is connected to the gearbox. The output end of the gearbox is fixedly connected to two electric material picking clamps.

[0010] Furthermore, the lifting and stacking rack includes a screw and nut drive motor fixedly connected to the third frame, a lifting plate is installed on the screw and nut drive motor, and multiple stacking rods are evenly fixedly connected to the lifting plate.

[0011] Furthermore, the lifting frame includes a lead screw and nut drive assembly fixedly connected to the first frame, and the lifting frame is mounted on the lead screw and nut drive assembly.

[0012] Furthermore, a central control equipment box for controlling the automatic pinning mechanism, the automatic feeding mechanism, and the automatic palletizing mechanism is fixedly connected to the third frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention improves the pinning machine by setting up an automatic pinning mechanism, an automatic feeding mechanism, and an automatic stacking mechanism, which can realize fully automatic pinning of circuit boards. There is no need for operators to manually align, feed, and unload the circuit boards, which effectively improves the efficiency of circuit board pinning and reduces the error caused by manual operation, thus effectively improving the quality of circuit board pins.

[0014] 2. The present invention, through the positioning component, can accurately position and align the pins of the circuit board, and can limit the circuit board to prevent the pins from shifting during the pin-setting process, thus effectively improving the accuracy and quality of the circuit board pins. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Schematic diagram of the automatic feeding mechanism; Figure 3 for Figure 1 A schematic diagram of the automatic palletizing mechanism in China; Figure 4 for Figure 1 A schematic diagram of the automatic palletizing mechanism from another direction; Figure 5 for Figure 1 A partial structural diagram of the automatic material handling and palletizing mechanism; Figure 6 for Figure 5 A structural diagram from another direction; Figure 7 for Figure 1 Schematic diagram of the automatic pin mechanism; Figure 8 for Figure 1 A schematic diagram of the automatic pin mechanism from another direction.

[0016] In the diagram: 1. Automatic pinning mechanism; 101. Second frame; 102. Second conveying assembly; 103. Automatic pinner; 2. Automatic feeding mechanism; 201. First frame; 202. Drive motor; 203. Drive arm; 204. Connector; 205. Bracket; 206. Suction cup picking robot; 207. Lifting rack; 208. First conveying assembly; 3. Automatic palletizing mechanism; 301. Third frame; 302. Guide rail; 303. Linear drive assembly; 304. Telescopic electric push rod; 305. Automatic picking and palletizing mechanism; 306. Conveyor belt; 307. Lifting palletizing rack; 4. Fixing plate; 5. First electric push rod; 6. Fixed positioning plate; 7. 1. Vertical plate; 8. Servo motor; 9. Adjusting screw; 10. Moving plate; 11. Guide rod; 12. Second electric push rod; 13. Movable positioning plate; 14. Fixed frame; 15. Rotating shaft; 16. Pulley; 17. First motor; 18. Belt; 19. Rotating shaft; 20. Second motor; 21. Sprocket; 22. Chain; 23. Feeding roller; 24. Third motor; 25. Horizontal frame; 26. Screw and nut driver; 27. Sliding plate; 28. Torsion motor; 29. ​​Gearbox; 30. Electric material handling clamp; 31. Screw and nut drive; 32. Lifting plate; 33. Stacking rod; 34. Screw and nut drive assembly; 35. Lifting frame; 36. Central control equipment box. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-8This invention provides a high-efficiency automatic pinning machine with an improved structure, comprising an automatic pinning mechanism 1, an automatic feeding mechanism 2, and an automatic palletizing mechanism 3. The automatic feeding mechanism 2 includes a first frame 201, on which two drive motors 202 are fixedly connected. A drive arm 203 is fixedly connected to the output end of each drive motor 202. A connecting member 204 is rotatably connected to the drive arm 203, and a bracket 205 is rotatably connected to the connecting member 204. The bracket 205 is rotatably connected to the first frame 201. A suction cup material-grabbing robot 206 is fixedly connected to the lower end of the connecting member 204. Two lifting material racks 207 corresponding to the two suction cup material-grabbing robots 206 are fixedly connected to the first frame 201. A first conveying assembly 208 is fixedly connected inside the first frame 201. The automatic pinning mechanism 1 includes a second... The automatic palletizing mechanism 3 includes a third frame 301, a guide rail 302 fixedly connected to the third frame 301, a linear drive assembly 303 fixedly connected to the guide rail 302, a telescopic electric push rod 304 connected between the linear drive assembly 303 and the guide rail 302, an automatic material picking and palletizing mechanism 305 fixedly connected to the output end of the telescopic electric push rod 304, a conveyor belt 306 corresponding to the second material conveying assembly 102 fixedly connected to the third frame 301, and a lifting palletizing frame 307 installed on the third frame 301.

[0019] In the above embodiment, during operation, two stacks of circuit boards are placed on two lifting racks 207 respectively. Two drive motors 202 drive the drive arm 203, bracket 205, and connector 204 to rotate, thereby enabling two suction cup picking robots 206 to move above the two stacks of circuit boards and pick them up using the vacuum adsorption principle. After picking up the boards, the two drive motors 202 control the suction cup picking robots 206 to place the two circuit boards one after the other on the first conveying component 208, so that the two circuit boards are neatly stacked together. The first conveying component 208 synchronously conveys the two circuit boards to the second conveying component 102, and the second conveying component 102 conveys the two circuit boards to the bottom of the automatic pinning device 103. The positioning component automatically positions and aligns the circuit boards, and the two automatic pinning devices 103 automatically drive the two circuit boards in. After pinning, the second feeding assembly 102 continues to transport the circuit board to the conveyor belt 306. The conveyor belt 306 transports the circuit board to the designated position. The linear drive assembly 303 drives the automatic material handling and stacking mechanism 305 to move to the circuit board. The telescopic electric push rod 304 controls the automatic material handling and stacking mechanism 305 to move down and align with the circuit board. The automatic material handling and stacking mechanism 305 clamps the circuit board. The linear drive assembly 303 drives the automatic material handling and stacking mechanism 305 to move to the lifting stacking frame 307. The automatic material handling and stacking mechanism 305 places the pinned circuit board on the lifting stacking frame 307, completing the fully automatic pinning of the circuit board. There is no need for operators to manually align, load, and unload the circuit board, which effectively improves the efficiency of circuit board pinning and reduces the error caused by manual operation, thus effectively improving the quality of circuit board pinning.

[0020] The positioning assembly includes a fixed plate 4 fixedly connected to the second frame 101, a first electric push rod 5 fixedly connected to the fixed plate 4, a fixed positioning plate 6 fixedly connected to the output end of the first electric push rod 5, a vertical plate 7 fixedly connected to the second frame 101, a servo motor 8 fixedly connected to the vertical plate 7, an adjusting screw 9 fixedly connected to the output end of the servo motor 8, a movable plate 10 threadedly fitted onto the wall of the adjusting screw 9, a guide rod 11 fixedly connected to the second frame 101, a guide hole provided on the movable plate 10, the guide rod 11 passing through the guide hole through the movable plate 10, a second electric push rod 12 fixedly connected to the movable plate 10, and a movable positioning plate 13 fixedly connected to the output end of the second electric push rod 12.

[0021] In the above embodiment, during use, the first electric push rod 5 drives the fixed positioning plate 6 to move downward. When the circuit board is located between the fixed positioning plate 6 and the movable positioning plate 13, the second electric push rod 12 drives the movable positioning plate 13 to move downward, and the servo motor 8 drives the adjusting screw 9 to rotate. Through the threaded engagement between the adjusting screw 9 and the movable plate 10, the movable plate 10 slides on the guide rod 11. The movable plate 10 drives the movable positioning plate 13 to approach the circuit board. The movable positioning plate 13 pushes the circuit board to the position of contact with the fixed positioning plate 6, thereby enabling accurate positioning and alignment of the pin position of the circuit board, and limiting the circuit board to prevent the circuit board pin from shifting during the pinning process. This effectively improves the accuracy and quality of the circuit board pin.

[0022] The linear drive assembly 303 includes two fixed frames 14 fixedly connected to the guide rail 302. A rotating shaft 15 is rotatably connected to each of the two fixed frames 14. A pulley 16 is fixedly sleeved on the rotating shaft 15. A first motor 17 is fixedly connected to one of the fixed frames 14. The output end of the first motor 17 is fixedly connected to the rotating shaft 15. The same belt 18 is wound around the two pulleys 16. The belt 18 is fixedly connected to the automatic material picking and palletizing mechanism 305.

[0023] In this embodiment, during use, the first motor 17 drives the pulley 16 to rotate, the pulley 16 drives the belt 18 to run, and the belt 18 drives the automatic material picking and stacking mechanism 305 to move. The forward and reverse rotation of the first motor 17 can drive the automatic material picking and stacking mechanism 305 to reciprocate, thereby enabling the picking and stacking of circuit boards.

[0024] The first feeding assembly 208 has the same structure as the second feeding assembly 102. The second feeding assembly 102 includes a plurality of rotating shafts 19 rotatably connected to the second frame 101. A second motor 20 connected to the rotating shafts 19 is fixedly connected to the second frame 101. A sprocket 21 is fixedly sleeved on each of the plurality of rotating shafts 19. The same chain 22 is wound around the plurality of sprockets 21. A plurality of feeding rollers 23 are fixedly sleeved on each of the plurality of rotating shafts 19.

[0025] In this embodiment, during use, the second motor 20 drives the rotating shaft 19 to rotate, the rotating shaft 19 drives a sprocket 21 to rotate, and the chain 22 drives all the sprockets 21 to rotate, thereby driving all the rotating shafts 19 to rotate. The rotating shaft 19 drives multiple conveying rollers 23 to rotate, thereby enabling stable conveying of the circuit board placed on the conveying rollers 23.

[0026] The automatic material picking and palletizing mechanism 305 includes a third motor 24 fixedly connected to the output end of a telescopic electric push rod 304. A crossbeam 25 is fixedly connected to the output end of the third motor 24. Two lead screw and nut drivers 26 are symmetrically fixedly connected to the crossbeam 25. A sliding plate 27 is fixedly connected to each of the two lead screw and nut drivers 26. A torsion motor 28 is fixedly connected to each of the two sliding plates 27. A gearbox 29 is fixedly connected to the sliding plate 27. The torsion motor 28 is connected to the gearbox 29. Two electric material picking clamps 30 are fixedly connected to the output end of the gearbox 29.

[0027] In the above embodiment, during material handling, the lead screw nut driver 26 drives the sliding plate 27 to move, adjusting the horizontal position of the electric material handling clamp 30. The torsion motor 28 drives the electric material handling clamp 30 to rotate, adjusting the angle of the electric material handling clamp 30 so that the electric material handling clamp 30 can be aligned with the edge of the circuit board. The lead screw nut driver 26 drives the electric material handling clamp 30 to clamp the edge of the circuit board. The electric material handling clamp 30 clamps the circuit board. The two electric material handling clamps 30 cooperate with each other to stably pick up and unload the circuit board.

[0028] The lifting and stacking frame 307 includes a screw and nut drive motor 31 fixedly connected to the third frame 301. A lifting plate 32 is installed on the screw and nut drive motor 31, and multiple stacking rods 33 are evenly fixedly connected to the lifting plate 32.

[0029] In the above embodiment, the lead screw and nut drive 31 can drive the palletizing rod 33 to move up and down, thereby allowing for flexible adjustment according to the palletizing height.

[0030] The lifting rack 207 includes a lead screw and nut drive assembly 34 fixedly connected to the first frame 201, and a lifting frame 35 is mounted on the lead screw and nut drive assembly 34.

[0031] In this embodiment, during use, the lead screw and nut drive assembly 34 drives the lifting frame 35 to move downward, thereby reducing the height of the lifting frame 35 and making it easier for workers to place circuit boards.

[0032] The third frame 301 is fixedly connected to a main control equipment box 36 for controlling the automatic pinning mechanism 1, the automatic feeding mechanism 2 and the automatic stacking mechanism 3. The main control equipment box 36 can improve the convenience of controlling the pinning machine.

[0033] Working principle: During operation, two stacks of circuit boards are placed on two lifting racks 207. Two drive motors 202 drive the drive arms 203, brackets 205, and connectors 204 to rotate, thereby moving two suction cup robotic arms 206 above the two stacks of circuit boards. The robotic arms then use vacuum suction to pick up the circuit boards. After picking up the boards, the two drive motors 202 control the suction cup robotic arms 206 to place the two circuit boards onto the first conveying assembly 208, ensuring they are neatly stacked together. The first conveying assembly 208 then... Two circuit boards are synchronously fed onto the second feeding assembly 102. The second feeding assembly 102 feeds the two circuit boards to the bottom of the automatic pinning device 103. The first electric push rod 5 drives the fixed positioning plate 6 to move downward. When the circuit board is between the fixed positioning plate 6 and the movable positioning plate 13, the second electric push rod 12 drives the movable positioning plate 13 to move downward, and the servo motor 8 drives the adjusting screw 9 to rotate. Through the threaded engagement between the adjusting screw 9 and the moving plate 10, the moving plate 10 slides on the guide rod 11. The moving plate 10 drives the movable positioning plate 13 closer to the circuit board. The moving positioning plate 13 pushes the circuit board to the position where it contacts the fixed positioning plate 6, thereby accurately positioning and aligning the pins on the circuit board and limiting the circuit board to prevent it from shifting during the pinning process. Two automatic pinning devices 103 automatically drive pins into the two circuit boards. After pinning, the second conveying assembly 102 continues to convey the circuit board to the conveyor belt 306. The conveyor belt 306 conveys the circuit board to the designated position. The linear drive assembly 303 drives the automatic material picking and stacking mechanism 305 to move to the circuit board. The telescopic electric push rod 304 controls... The automatic material handling and palletizing mechanism 305 moves down to align with the circuit board. The automatic material handling and palletizing mechanism 305 clamps the circuit board, and the linear drive component 303 drives the automatic material handling and palletizing mechanism 305 to move to the lifting palletizing frame 307. The automatic material handling and palletizing mechanism 305 places the pinned circuit board on the lifting palletizing frame 307, completing the fully automatic pinning of the circuit board. There is no need for operators to manually align, load, and unload the circuit board, which effectively improves the efficiency of circuit board pinning and reduces the error caused by manual operation, thus effectively improving the quality of circuit board pinning.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency automatic pin-making machine with an improved structure, characterized in that: The system includes an automatic pinning mechanism (1), an automatic feeding mechanism (2), and an automatic palletizing mechanism (3). The automatic feeding mechanism (2) includes a first frame (201), on which two drive motors (202) are fixedly connected. A drive arm (203) is fixedly connected to the output end of the drive motors (202). A connecting piece (204) is rotatably connected to the drive arm (203), and a bracket (205) is rotatably connected to the connecting piece (204). The bracket (205) is rotatably connected to the first frame (201). A suction cup manipulator (206) is fixedly connected to the lower end of the connector (204). Two lifting material racks (207) corresponding to the two suction cup manipulators (206) are fixedly connected to the first frame (201). A first material conveying assembly (208) is fixedly connected inside the first frame (201). The automatic pinning mechanism (1) includes a second frame (101). Two second feeding assemblies (102) are fixedly connected to the frame (101), and the second feeding assemblies (102) are docked with the first feeding assembly (208). Two automatic pinning devices (103) are symmetrically fixedly connected to the second frame (101). A positioning assembly is fixedly connected to the second frame (101). The automatic palletizing mechanism (3) includes a third frame (301), and a guide rail (302) is fixedly connected to the third frame (301). 02) A linear drive assembly (303) is fixedly connected to the upper part. A telescopic electric push rod (304) is connected between the linear drive assembly (303) and the guide rail (302). An automatic material picking and stacking mechanism (305) is fixedly connected to the output end of the telescopic electric push rod (304). A conveyor belt (306) corresponding to the second material conveying assembly (102) is fixedly connected to the third frame (301). A lifting stacking frame (307) is installed on the third frame (301).

2. The high-efficiency automatic pin-making machine with an improved structure according to claim 1, characterized in that: The positioning assembly includes a fixed plate (4) fixedly connected to the second frame (101), a first electric push rod (5) fixedly connected to the fixed plate (4), a fixed positioning plate (6) fixedly connected to the output end of the first electric push rod (5), a vertical plate (7) fixedly connected to the second frame (101), a servo motor (8) fixedly connected to the vertical plate (7), an adjusting screw (9) fixedly connected to the output end of the servo motor (8), a moving plate (10) threadedly fitted on the wall of the adjusting screw (9), a guide rod (11) fixedly connected to the second frame (101), a guide hole opened on the moving plate (10), the guide rod (11) passing through the guide hole through the moving plate (10), a second electric push rod (12) fixedly connected to the moving plate (10), and a movable positioning plate (13) fixedly connected to the output end of the second electric push rod (12).

3. The high-efficiency automatic pin-making machine with an improved structure according to claim 2, characterized in that: The linear drive assembly (303) includes two fixed frames (14) fixedly connected to the guide rail (302). A rotating shaft (15) is rotatably connected to each of the two fixed frames (14). A pulley (16) is fixedly sleeved on the rotating shaft (15). A first motor (17) is fixedly connected to one of the fixed frames (14). The output end of the first motor (17) is fixedly connected to the rotating shaft (15). The same belt (18) is wound around the two pulleys (16). The belt (18) is fixedly connected to the automatic material picking and stacking mechanism (305).

4. The high-efficiency automatic pin-making machine with an improved structure according to claim 3, characterized in that: The first feeding assembly (208) has the same structure as the second feeding assembly (102). The second feeding assembly (102) includes a plurality of rotating shafts (19) rotatably connected to the second frame (101). A second motor (20) connected to the rotating shafts (19) is fixedly connected to the second frame (101). A sprocket (21) is fixedly sleeved on each of the plurality of rotating shafts (19). The same chain (22) is wound around the plurality of sprockets (21). A plurality of feeding rollers (23) are fixedly sleeved on each of the plurality of rotating shafts (19).

5. The high-efficiency automatic pin-making machine with an improved structure according to claim 4, characterized in that: The automatic material picking and stacking mechanism (305) includes a third motor (24) fixedly connected to the output end of the telescopic electric push rod (304). The output end of the third motor (24) is fixedly connected to a crossbeam (25). Two lead screw and nut drivers (26) are symmetrically fixedly connected to the crossbeam (25). A sliding plate (27) is fixedly connected to each of the two lead screw and nut drivers (26). A torsion motor (28) is fixedly connected to each of the two sliding plates (27). A gearbox (29) is fixedly connected to the sliding plate (27). The torsion motor (28) is connected to the gearbox (29). Two electric material picking clamps (30) are fixedly connected to the output end of the gearbox (29).

6. The high-efficiency automatic pin-making machine with an improved structure according to claim 5, characterized in that: The lifting and stacking rack (307) includes a screw and nut drive (31) fixedly connected to the third frame (301), a lifting plate (32) is installed on the screw and nut drive (31), and multiple stacking rods (33) are evenly fixedly connected on the lifting plate (32).

7. A high-efficiency automatic pin-making machine with an improved structure according to claim 6, characterized in that: The lifting rack (207) includes a screw and nut drive assembly (34) fixedly connected to the first frame (201), and a lifting frame (35) is mounted on the screw and nut drive assembly (34).

8. The high-efficiency automatic pin-making machine with an improved structure according to claim 7, characterized in that: The third frame (301) is fixedly connected to a main control equipment box (36) for controlling the automatic pinning mechanism (1), the automatic feeding mechanism (2) and the automatic palletizing mechanism (3).

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