Automatic part ejection mechanism

Abstract

The utility model discloses an automatic part ejection mechanism and relates to the technical field of stamping. The guide plate and the ejection support are connected together, the guide plate is welded on the upper mounting plate, the upper mounting plate is fixed on the lower die holder through bolts, the fixed support is welded on the lower mounting plate, the lower mounting plate is fixed on the lower supporting plate, and the air cylinder mounted on the fixed support is connected with the ejection support through a driving rod. When the stamping die needs to be designed according to a manual production line mode, the automatic part ejection mechanism is additionally arranged on the die, manual part taking is omitted during production, parts can be automatically ejected out of a die cavity through the automatic part ejection mechanism, the parts slide onto a belt conveyor under the action of gravity, and the belt conveyor conveys the parts to a next station. Therefore, a plurality of workers can be reduced for each punching machine, so that the labor cost and the production cost can be effectively reduced, and the industrial competitiveness is improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping technology, specifically an automatic ejection mechanism for parts. Background Art

[0002] In the stamping industry, stamping production modes mainly include manual production lines and automated production lines. The biggest difference between manual and automated production lines is the large number of workers required. Manual production lines typically involve several stamping machines connected together, with 2-4 workers per machine. The operators at the front are responsible for loading materials and placing parts into the die cavity, while the operators at the back are responsible for retrieving parts and placing them on a conveyor belt. The conveyor belt then transports the parts to the next process, where operators retrieve parts and place them into the die cavity, and so on, until the finished product is stamped and packaged. Automated production lines require only 2-3 workers, while manual production lines require 8-16 workers. Therefore, manual production lines have gradually lost their competitiveness in the stamping industry. However, in the design of stamping dies, due to limitations in equipment, processes, output, and cost, it is often necessary to design dies according to the manual production line model. This leads to adverse consequences such as a large number of workers, increased production costs, reduced profits, and loss of industry competitiveness. Therefore, in the design of dies for manual production lines, researching an automatic ejection mechanism for parts is particularly important. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, the purpose of this invention is to provide an automatic ejection mechanism for parts, so as to achieve the purpose of automatically ejecting parts from the mold cavity.

[0004] To achieve the above-mentioned objectives, the guide plate of the automatic ejection mechanism of this invention is connected to the ejection bracket. The guide plate is welded to the upper mounting plate, the upper mounting plate is fixed to the lower mold base with bolts, the fixed bracket is welded to the lower mounting plate, the lower mounting plate is fixed to the lower support plate with bolts, and the cylinder mounted on the fixed bracket is connected to the ejection bracket through a drive rod.

[0005] Furthermore, the ejector bracket is mainly composed of round steel 1, connecting plate 1, connecting plate 2, round steel 2, connecting plate 3, connecting plate 4, connecting plate 5, connecting plate 6, round steel 3, and round steel 4 welded together; one end of connecting plate 1 and connecting plate 6 is welded to round steel 4 respectively, and the other end of connecting plate 1 and connecting plate 6 is welded to the upper inner side of connecting plate 2 and connecting plate 5 respectively; one end of connecting plate 3 and connecting plate 4 is welded to round steel 2 respectively, and the other end of connecting plate 3 and connecting plate 4 is welded to the lower part of connecting plate 2 and connecting plate 5 respectively.

[0006] Furthermore, the holes on connecting plate one, connecting plate six, the upper hole of connecting plate two, and the upper hole of connecting plate five are concentric, and the lower hole of connecting plate two is concentric with the lower hole of connecting plate five.

[0007] Furthermore, the guide plate is placed between connecting plate one and connecting plate six and in the groove of the drive rod. Pin one passes through the upper hole of connecting plate two, the hole on connecting plate one, the guide groove two of the guide plate, the hole on connecting plate six, and the upper hole of connecting plate five in sequence. A round washer is fitted on pin one, and cotter pin one is inserted into the hole of pin one. Pin two passes through the lower hole of connecting plate two, the upper hole of the drive rod, the guide groove one of the guide plate, and the lower hole of connecting plate five in sequence. A round washer two is fitted on pin two, and cotter pin two is inserted into the hole of pin two. The ejector bracket slides smoothly along the guide groove two and guide groove one of the guide plate with pin one and pin two.

[0008] Furthermore, the first guide groove is formed by connecting and combining a vertical groove on the guide plate and an oblique groove located obliquely above the vertical groove. The second guide groove is a vertical groove on the guide plate, located above the extending direction of the first vertical groove.

[0009] Furthermore, the lower end of the drive rod is connected to the cylinder piston rod of the cylinder. A nut is provided at the connection between the drive rod and the cylinder piston rod to prevent loosening between the drive rod and the cylinder piston rod. The hole at the lower end of the cylinder is aligned with the round hole on the fixed bracket. The pin three is inserted into the hole at the lower end of the cylinder and the round hole on the fixed bracket. The round washer three is sleeved on the pin three, and the cotter pin three is inserted into the hole of the pin three. The cylinder can rotate freely around the pin three. When the cylinder piston rod moves in extension and retraction, it drives the drive rod to move in the vertical direction. The drive rod slides along the guide groove one of the guide plate through the pin two connected to it, driving the connecting plate two and the connecting plate five to move synchronously along the guide groove one of the guide plate. At the same time, it drives the pin one to slide along the guide groove two of the guide plate, driving the ejector bracket to move along the guide groove two.

[0010] In practical application, the upper mounting plate is fixed to the lower mold base with bolts, and the lower mounting plate is fixed to the lower support plate. The cylinder piston rod is in the closed state, and the ejector bracket is located below the part. After the part is stamped and the upper and lower molds are separated, the stamping machine controls the cylinder piston rod to lift it through the air circuit. The cylinder piston rod drives the drive rod to move upward along the cylinder piston rod. The drive rod slides upward along the guide groove 1 of the guide plate through the pin 2 connected to it, driving the connecting plate 2 and connecting plate 5 to move synchronously along the guide groove 1 of the guide plate. At the same time, it drives the pin 1 to slide upward along the guide groove 2 of the guide plate, thereby driving the ejector bracket to move upward along the guide groove 2. The ejector bracket vertically lifts the part out of the mold cavity. Under the action of gravity, the part slides down along the round steel 1 and round steel 3 of the ejector bracket onto the belt conveyor. The belt conveyor transports the part to the next station.

[0011] Compared with existing technologies, this invention addresses the issue of adding an automatic part ejection mechanism to stamping dies designed for manual production lines. This eliminates the need for manual part handling during production, as the mechanism automatically ejects parts from the die cavity, which then slides onto a conveyor belt under gravity. This reduces the number of staff required for each stamping machine, effectively lowering labor and production costs and enhancing industry competitiveness. Attached Figure Description

[0012] Figure 1 This is a simplified structural diagram of the present invention.

[0013] Figure 2 for Figure 1 Exploded view.

[0014] Figure 3 for Figure 1 A simplified diagram of the welded structure of the guide plate and the upper mounting plate.

[0015] Figure 4 for Figure 1 A simplified diagram of the welded structure of the lower mounting plate and the fixed bracket.

[0016] Figure 5 for Figure 1 A simplified diagram of the welded structure of the ejector bracket.

[0017] Figure 6 This is a simplified diagram illustrating the application of this utility model.

[0018] In the diagram: 1. Guide plate; 2. Upper mounting plate; 3. Ejector bracket; 4. Round steel bar 1; 5. Connecting plate 1; 6. Connecting plate 2; 7. Round steel bar 2; 8. Connecting plate 3; 9. Connecting plate 4; 10. Connecting plate 5; 11. Connecting plate 6; 12. Round steel bar 3; 13. Round steel bar 4; 14. Guide groove 1; 15. Guide groove 2; 16. Upper hole of connecting plate 2; 17. Lower hole of connecting plate 2; 18. Lower hole of connecting plate 5; 19. Upper hole of connecting plate 5; 20. Pin 1; 21. Pin 2; 22. Drive rod; 2 3. Cylinder; 24. Pin 3; 25. Lower mounting plate; 26. Fixed bracket; 27. Round washer 3; 28. Cotter pin 3; 29. ​​Nut; 30. Cylinder piston rod; 31. Round washer 2; 32. Cotter pin 2; 33. Round washer 1; 34. Cotter pin 1; 35. Upper end hole of drive rod; 36. Lower mold base; 37. Lower support plate; 38. Part; 39. Position 1; 40. Position 2; 41. Belt conveyor; 42. Vertical groove 1; 43. Vertical groove 2; 44. Angled groove; 45. Round hole of fixed bracket. DETAILED DESCRIPTION

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the guide plate 1 of the automatic ejection mechanism of this utility model is connected to the ejection bracket 3. The guide plate 1 is welded to the upper mounting plate 2. The upper mounting plate 2 is fixed to the lower mold base 36 with bolts. The fixed bracket 26 is welded to the lower mounting plate 25. The lower mounting plate 25 is fixed to the lower support plate 37 with bolts. The cylinder 23 installed on the fixed bracket 26 is connected to the ejection bracket 3 through the drive rod 22.

[0020] Preferably, the ejector bracket 3 is mainly composed of round steel 4, connecting plate 5, connecting plate 6, round steel 7, connecting plate 8, connecting plate 9, connecting plate 10, connecting plate 11, round steel 12, and round steel 13 welded together. One end of connecting plate 5 and connecting plate 6 is welded to round steel 13, and the other end of connecting plate 5 and connecting plate 6 is welded to the upper inner side of connecting plate 6 and connecting plate 5, respectively. One end of connecting plate 8 and connecting plate 4 is welded to round steel 7, and the other end of connecting plate 8 and connecting plate 4 is welded to the lower part of connecting plate 6 and connecting plate 5, respectively. The holes on connecting plate 5 and connecting plate 6 are concentric with the upper hole 16 of connecting plate 2 and the upper hole 19 of connecting plate 5, and the lower hole 17 of connecting plate 2 is concentric with the lower hole 18 of connecting plate 5.

[0021] Preferably, the guide plate 1 is placed between the connecting plate 5 and the connecting plate 6 11 and in the groove of the drive rod 22. The pin 1 20 passes sequentially through the upper end hole 16 of the connecting plate 2, the hole on the connecting plate 5, the guide groove 2 15 of the guide plate 1, the hole on the connecting plate 6 11, and the upper end hole 19 of the connecting plate 5. The round washer 33 is fitted onto the pin 1 20, and the cotter pin 34 is inserted into the hole of the pin 1 20. The pin 2 21 passes sequentially through the lower end hole 17 of the connecting plate 2, the upper end hole 35 of the drive rod, the guide groove 14 of the guide plate 1, and the lower end hole of the connecting plate 5. 18 passes through, the round washer 31 is fitted onto the pin 21, and the cotter pin 32 is inserted into the hole of the pin 21; the guide groove 14 is formed by connecting and combining the vertical groove 42 opened on the guide plate 1 and the oblique groove 44 located obliquely above the vertical groove 42; the guide groove 15 is the vertical groove 43 opened on the guide plate 1, and the vertical groove 43 is located above the extending direction of the vertical groove 42; the ejector bracket 3 can slide smoothly along the guide groove 15 and guide groove 14 of the guide plate 1 with the pin 20 and the pin 21.

[0022] Preferably, the lower end of the drive rod 22 is connected to the cylinder piston rod 30 of the cylinder 23. Tightening the nut 29 can prevent loosening at the connection between the drive rod 22 and the cylinder piston rod 30. The hole at the lower end of the cylinder 23 is aligned with the round hole 45 on the fixing bracket 26. The pin 24 is inserted into the hole at the lower end of the cylinder 23 and the round hole 45 on the fixing bracket 26. The round washer 27 is fitted onto the pin 24, and the cotter pin 28 is inserted into the hole of the pin 24. The cylinder 23 can rotate freely around the pin 24. When the cylinder piston rod 30 extends and retracts, it drives the drive rod 22 to move vertically. The drive rod 22 slides along the guide groove 14 of the guide plate 1 via the pin 21 connected to it, causing the connecting plate 6 and the connecting plate 10 to move synchronously along the guide groove 14 of the guide plate 1. At the same time, it drives the pin 20 to slide along the guide groove 15 of the guide plate 1, thereby driving the ejector bracket 3 to move along the guide groove 15. Meanwhile, the cylinder 23 rotates slightly around the circular hole 45 of the fixed bracket 26. The automatic ejection mechanism of this utility model converts the linear motion of the cylinder piston rod 30 into the motion of the ejector bracket 3 along the guide grooves 14 and 15 of the guide plate 1.

[0023] In practical applications, such as Figure 6As shown, the upper mounting plate 2 is fixed to the lower mold base 36 with bolts, and the lower mounting plate 25 is fixed to the lower support plate 37. The piston rod 30 of the cylinder 23 is in the closed state, and the ejector bracket 3 is located below the part 38. After the part 38 is stamped and the upper and lower molds are separated, the stamping machine controls the piston rod 30 of the cylinder 23 to lift it through the air circuit. The piston rod 30 drives the drive rod 22 to move upward along the piston rod 30. The drive rod 22 slides upward along the guide groove 14 of the guide plate 1 through the pin 21 connected to it, which drives the connecting plate 6 and the connecting plate 10 to move synchronously along the guide groove 14 of the guide plate 1. At the same time, it drives the pin 20 to slide upward along the guide groove 15 of the guide plate 1, which in turn drives the ejector bracket 3 to move along the guide groove. When pin 21 moves upward along guide groove 14 of guide plate 1 from point A to point B, ejector bracket 3 vertically lifts part 38 out of mold cavity. When pin 21 moves along guide groove 14 of guide plate 1 from point B to point C, ejector bracket 3 is in position 39. Part 38 is lifted by ejector bracket 3 and is located in part position 40. Under the action of gravity, part 38 slides down along round steel 4 and round steel 12 of ejector bracket 3 onto conveyor belt 41. Conveyor belt 41 conveys part 38 to the next station. The time from when cylinder 23 starts lifting part 38 to when part 38 slides onto conveyor belt 41 is set to S seconds. After S seconds, the piston rod 30 of cylinder 23 is controlled by the air circuit to retract into cylinder 23. Cylinder piston 30 drives drive rod 22 to move downward along cylinder piston rod 30. Drive rod 22 slides along guide groove 14 of guide plate 1 through pin 21 connected to it, driving connecting plate 6 and connecting plate 10 to move downward along guide groove 14 of guide plate 1. At the same time, it drives pin 20 to slide downward along guide groove 15 of guide plate 1. When cylinder piston rod 30 of cylinder 23 is fully closed, ejector bracket 3 returns to the initial position. The operator puts the part into the mold cavity. Thus, one stamping cycle is completed.

Claims

1. An automatic ejection mechanism for parts, characterized in that: The guide plate (1) of the automatic ejection mechanism of the part is connected to the ejection bracket (3). The guide plate (1) is welded to the upper mounting plate (2). The upper mounting plate (2) is fixed to the lower mold base (36) with bolts. The fixed bracket (26) is welded to the lower mounting plate (25). The lower mounting plate (25) is fixed to the lower support plate (37) with bolts. The cylinder (23) installed on the fixed bracket (26) is connected to the ejection bracket (3) through the drive rod (22).

2. The automatic part ejection mechanism according to claim 1, characterized in that: The ejector bracket (3) is composed of round steel one (4), connecting plate one (5), connecting plate two (6), round steel two (7), connecting plate three (8), connecting plate four (9), connecting plate five (10), connecting plate six (11), round steel three (12), and round steel four (13) welded together; one end of connecting plate one (5) and connecting plate six (11) is welded to round steel four (13) respectively, and the other end of connecting plate one (5) and connecting plate six (11) is welded to the upper inner side of connecting plate two (6) and connecting plate five (10) respectively, one end of connecting plate three (8) and connecting plate four (9) is welded to round steel two (7) respectively, and the other end of connecting plate three (8) and connecting plate four (9) is welded to the lower part of connecting plate two (6) and connecting plate five (10) respectively.

3. The automatic part ejection mechanism according to claim 2, characterized in that: The holes on the connecting plate 1 (5), the connecting plate 6 (11), the upper hole (16) of the connecting plate 2, and the upper hole (19) of the connecting plate 5 are concentric, and the lower hole (17) of the connecting plate 2 and the lower hole (18) of the connecting plate 5 are concentric.

4. The automatic part ejection mechanism according to claim 1, characterized in that: The guide plate (1) is placed between the connecting plate one (5) and the connecting plate six (11) and in the groove of the drive rod (22). The first pin (20) passes through the upper end hole (16) of the connecting plate two, the hole on the connecting plate one (5), the guide groove two (15) of the guide plate (1), the hole on the connecting plate six (11), and the upper end hole (19) of the connecting plate five in sequence. The first round washer (33) is fitted on the first pin (20), and the first cotter pin (34) is inserted into the hole of the first pin (20). Pin 2 (21) passes through the lower end hole (17) of connecting plate 2, the upper end hole (35) of drive rod, the guide groove 1 (14) of guide plate (1) and the lower end hole (18) of connecting plate 5 in sequence. Round washer 2 (31) is fitted on pin 2 (21) and cotter pin 2 (32) is inserted into the hole of pin 2 (21). The ejector bracket (3) slides smoothly along the guide groove 2 (15) and guide groove 1 (14) of guide plate (1) as pin 1 (20) and pin 2 (21) slide.

5. The automatic part ejection mechanism according to claim 4, characterized in that: The first guide groove (14) is formed by connecting and combining the first vertical groove (42) opened on the guide plate (1) with the oblique groove (44) located obliquely above the first vertical groove (42). The second guide groove (15) is the second vertical groove (43) opened on the guide plate (1), and the second vertical groove (43) is located above the extension direction of the first vertical groove (42).

6. The automatic part ejection mechanism according to claim 1, characterized in that: The lower end of the drive rod (22) is connected to the cylinder piston rod (30) of the cylinder (23). A nut (29) is provided at the connection between the drive rod (22) and the cylinder piston rod (30) to prevent loosening between the drive rod (22) and the cylinder piston rod (30). The hole at the lower end of the cylinder (23) is aligned with the round hole (45) on the fixed bracket (26). The pin three (24) is inserted into the hole at the lower end of the cylinder (23) and the round hole (45) on the fixed bracket (26). The round washer three (27) is fitted on the pin three (24). The cotter pin three (28) is inserted into the pin three (24). In the hole; the cylinder (23) can rotate freely around the pin three (24). When the cylinder piston rod (30) moves in extension and retraction, it drives the drive rod (22) to move in the vertical direction. The drive rod (22) slides along the guide groove one (14) of the guide plate (1) through the pin two (21) connected to it, which drives the connecting plate two (6) and the connecting plate five (10) to move synchronously along the guide groove one (14) of the guide plate (1). At the same time, it drives the pin one (20) to slide along the guide groove two (15) of the guide plate (1), which drives the ejector bracket (3) to move along the guide groove two (15).

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