Glue removing die for removing redundant glue of lead frame through punching

Abstract

The utility model belongs to the technical field of lead frame glue removing, and particularly relates to a glue removing die for removing redundant glue of a lead frame through punching, which comprises a mounting seat, a lower die holder and an upper die holder are respectively and fixedly mounted on the surface of the front end of the mounting seat, and a control device is arranged in the upper die holder. And the control device comprises a driving motor, a driving bevel gear, a driven bevel gear, a control rod and a moving plate. According to the glue removing die for removing the redundant glue of the lead frame through punching, when the residual glue on the lead frame is cleaned, the lead frame is firstly placed in the lower die base, then the inserting plate is accurately inserted into the correct position of the side of the lead frame, then the limiting plate is inserted into the inserting plate and limited through the limiting screw, and then the driving motor is started; the control rod controls the moving plate to move, the fixed circular plate and the electric telescopic rod are driven to move, and the moving plate drives the transverse plate and the glue removing knife to move to clean residual glue on the lead frame.

Description

Technical Field

[0001] The utility model relates to the technical field of lead frame debonding, in particular to a debonding die for punching and removing excess colloid from a lead frame. Background Art

[0002] For example, in a degumming mold for punching and removing excess glue from a lead frame disclosed on the Chinese Patent Network (application number: 202420137411.4), when degumming the mold, two driving bars are used to drive the corresponding sliding plate to move, thereby pushing the position of the lead frame fixing plate, so that the lead frame is located at the center point of the mold for degumming. However, this degumming method is not convenient for cleaning the residual glue on the degumming knife during degumming, which causes inconvenience when the degumming knife is used to clean the glue next time. Utility Model Content

[0003] Based on the technical problem that the residual colloid on the degumming knife of the existing lead frame degumming mechanism is inconvenient to clean during degumming, the utility model proposes a degumming mold for punching and removing excess colloid from the lead frame.

[0004] The utility model proposes a debonding mold for punching and removing excess glue from a lead frame, comprising a mounting seat, a lower die seat and an upper die seat being fixedly mounted on the front end surface of the mounting seat, a control device being arranged inside the upper die seat, the control device comprising a driving motor, an active bevel gear, a driven bevel gear, a control rod and a movable plate, the driving motor controlling the rotation of the active bevel gear, the active bevel gear driving the driven bevel gear and the control rod to rotate, and the control rod driving the movable plate to move horizontally.

[0005] Preferably, the driving motor is fixedly mounted inside the upper die base, the active bevel gear is fixedly mounted on the rotating shaft of the driving motor, a sliding groove is provided inside the upper die base, and the movable plate is slidably inserted inside the sliding groove.

[0006] Through the above technical solution, when the driving motor is started, the rotating shaft drives the active bevel gear to rotate, and the moving plate remains horizontal and moves in the sliding groove.

[0007] Preferably, the control rod is threadedly connected to the inside of the movable plate, the driven bevel gear is fixedly mounted on the right end surface of the control rod, the left end surface of the control rod and the right end surface of the driven bevel gear are both fixedly mounted with connecting rods, and the outer surfaces of the two connecting rods are both fixedly mounted with fixed bearings, and the fixed bearings are fixedly mounted inside the upper mold base.

[0008] Through the above technical solution, the active bevel gear drives the driven bevel gear to rotate, the control rod rotates with the driven bevel gear, and the two connecting rods are both installed on the inner shaft of the fixed bearing to rotate, ensuring that the control rod remains stable and rotates.

[0009] Preferably, the outer surface of the driven bevel gear is meshed with the outer surface of the driving bevel gear, and the interior of the upper mold base is fixedly installed with forward and reverse switches at both sides of the sliding groove. The two forward and reverse switches are electrically connected to the drive motor through wires, and a fixed circular plate is fixedly installed on the lower surface of the movable plate.

[0010] Through the above technical solution, when the movable plate moves, the forward and reverse switch will be squeezed, and the forward and reverse switch will control the driving motor shaft to reverse.

[0011] Preferably, an electric telescopic rod is fixedly installed on the lower surface of the fixed circular plate, a horizontal plate is fixedly installed on the lower surface of the electric telescopic rod, a degumming knife is fixedly installed on the lower surface of the horizontal plate, a lead frame is placed inside the lower mold base, and plug-in plates are slidably inserted at both ends of the lead frame, and limit plates are slidably inserted inside the two plug-in plates, and the internal threads of the plug-in plates are connected to limit screws, and the limit screws pass through the interior of the limit plate and are connected to the internal threads of the plug-in plate.

[0012] Through the above technical solution, the movable plate drives the fixed circular plate and the electric telescopic rod to move, and then drives the horizontal plate and the glue removal knife to clean the residual glue on the lead frame, and the limit screw limits the position of the plug-in plate and the limit plate.

[0013] Preferably, the inner surface of the lower mold base is located in the front and rear of the lead frame and is slidably connected to a sliding plate, and the lower surfaces of the two sliding plates are fixedly installed with a clamping plate, and the clamping plate is slidably inserted into the interior of the lower mold base, and the internal thread of the clamping plate is connected to a bidirectional threaded screw, and the front and rear ends of the bidirectional threaded screw are fixedly installed with a rotating rod, and the outer surface of the rotating rod is fixedly installed with a limit bearing, and the limit bearing is fixedly installed inside the lower mold base.

[0014] Through the above technical solution, the bidirectional threaded screw is rotated to control the two clamping plates to move horizontally toward each other, driving the two sliding plates to clamp the lead frame, so that the lead frame remains in the middle position of the lower mold base.

[0015] The beneficial effects of the present invention are:

[0016] By setting a control device, when cleaning the residual glue on the lead frame, the lead frame is first placed inside the lower mold base, and then the bidirectional threaded screw is rotated to control the two clamping plates to move horizontally toward each other, driving the two sliding plates to clamp the lead frame, so that the lead frame is maintained in the middle position of the lower mold base, so that the plug-in plate can be accurately inserted into the correct position on the side of the lead frame, and then the limit plate is inserted into the plug-in plate and limited by the limit screw. Then the drive motor is started to drive the rotating shaft to drive the active bevel gear to rotate, and the active bevel gear drives the driven bevel gear to rotate. The control rod rotates with the driven bevel gear, and the control rod controls the movement of the movable plate to drive the fixed circular plate and the electric telescopic rod to move. The electric telescopic rod is started to control the glue removal knife to descend and be placed on the lead frame, and the movable plate drives the horizontal plate and the glue removal knife to move to clean the residual glue on the lead frame. After the electric telescopic rod is turned off, the glue removal knife moves up, which is convenient for cleaning the residual glue on the glue removal knife, thereby achieving the effect of facilitating the cleaning of the residual colloid on the glue removal knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a debonding die for punching and removing excess glue from a lead frame proposed by the present invention;

[0018] Figure 2 This is a cross-sectional view of the upper die base structure of a debonding die for punching and removing excess glue from a lead frame proposed by the present invention;

[0019] Figure 3 The utility model provides a cross-sectional view of the lower die base structure of a debonding die for punching and removing excess glue from a lead frame.

[0020] In the figure: 1. Mounting base; 2. Lower die base; 21. Lead frame; 22. Insert plate; 23. Limit plate; 24. Limit screw; 25. Sliding plate; 26. Clamping plate; 27. Bidirectional threaded screw; 28. Rotating rod; 29. ​​Limit bearing; 3. Upper die base; 31. Sliding groove; 32. Forward and reverse switch; 4. Driving motor; 5. Driving bevel gear; 6. Driven bevel gear; 7. Control rod; 71. Connecting rod; 72. Fixed bearing; 8. Moving plate; 81. Fixed circular plate; 82. Electric telescopic rod; 83. Horizontal plate; 84. Glue removal knife. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-Figure 3A debonding mold for punching and removing excess glue from a lead frame includes a mounting base 1, on the front end surface of which a lower die base 2 and an upper die base 3 are fixedly mounted. In order to facilitate the cleaning of residual glue on the lead frame 21, a control device is provided inside the upper die base 3. The control device includes a driving motor 4, an active bevel gear 5, a driven bevel gear 6, a control rod 7 and a movable plate 8. The driving motor 4 controls the rotation of the active bevel gear 5, and the active bevel gear 5 drives the driven bevel gear 6 and the control rod 7 to rotate. The control rod 7 drives the movable plate 8 to move horizontally.

[0023] In order to ensure that the movable plate 8 is stuck in the sliding groove 31 and moves horizontally, the driving motor 4 is fixedly installed inside the upper mold base 3, and the active bevel gear 5 is fixedly installed on the rotating shaft of the driving motor 4. A sliding groove 31 is opened inside the upper mold base 3, and the movable plate 8 is slidably inserted into the inside of the sliding groove 31. When the driving motor 4 is started, the rotating shaft drives the active bevel gear 5 to rotate, and the movable plate 8 is stuck in the sliding groove 31 and moves horizontally.

[0024] In order to facilitate the control of the rotation of the driven bevel gear 6 and the control rod 7, the control rod 7 is threadedly connected to the inside of the movable plate 8, the driven bevel gear 6 is fixedly mounted on the right end surface of the control rod 7, and the left end surface of the control rod 7 and the right end surface of the driven bevel gear 6 are fixedly mounted with a connecting rod 71. The outer surfaces of the two connecting rods 71 ​​are fixedly mounted with fixed bearings 72, and the fixed bearings 72 are fixedly mounted inside the upper die base 3. The active bevel gear 5 drives the driven bevel gear 6 to rotate, and the control rod 7 rotates with the driven bevel gear 6. The two connecting rods 71 ​​are both mounted on the inner shaft of the fixed bearing 72 to rotate, ensuring that the control rod 7 remains stable for rotation.

[0025] In order to facilitate the control of the reciprocating movement of the movable plate 8, the outer surface of the driven bevel gear 6 is meshed with the outer surface of the active bevel gear 5, and the interior of the upper mold base 3 is fixedly installed with forward and reverse switches 32 on both sides of the sliding groove 31. The two forward and reverse switches 32 are electrically connected to the drive motor 4 through wires. A fixed circular plate 81 is fixedly installed on the lower surface of the movable plate 8. When the movable plate 8 moves, the forward and reverse switches 32 will be squeezed. The forward and reverse switches 32 will control the reverse rotation shaft of the drive motor 4, control the movable plate 8 to return, and thereby make the movable plate 8 move back and forth.

[0026] In order to facilitate the control of the horizontal plate 83 and the glue removal knife 84 to clean the residual glue on the lead frame 21, an electric telescopic rod 82 is fixedly installed on the lower surface of the fixed circular plate 81, and a horizontal plate 83 is fixedly installed on the lower surface of the electric telescopic rod 82. A glue removal knife 84 is fixedly installed on the lower surface of the horizontal plate 83. The lead frame 21 is placed inside the lower mold base 2, and the left and right ends of the lead frame 21 are slidably plugged with plug-ins 22. The interiors of the two plug-ins 22 are slidably plugged with limit plates 23. The internal threads of the plug-ins 22 are connected to the limit screws 24. The limit screws 24 pass through the interior of the limit plate 23 and are connected to the internal threads of the plug-in plates 22. The movable plate 8 drives the fixed circular plate 81 and the electric telescopic rod 82 to move, and then drives the horizontal plate 83 and the glue removal knife 84 to clean the residual glue on the lead frame 21. The limit screws 24 limit the positions of the plug-in plates 22 and the limit plates 23.

[0027] In order to ensure that the lead frame 21 remains in the middle position of the lower mold base 2, the inner surface of the lower mold base 2 is located in the front and rear of the lead frame 21 and is slidably connected with sliding plates 25. The lower surfaces of the two sliding plates 25 are fixedly installed with clamping plates 26. The clamping plates 26 are slidably inserted into the interior of the lower mold base 2. The internal threads of the clamping plates 26 are connected with a bidirectional threaded screw 27. The front and rear ends of the bidirectional threaded screw 27 are fixedly installed with a rotating rod 28. The outer surface of the rotating rod 28 is fixedly installed with a limiting bearing 29. The limiting bearing 29 is fixedly installed inside the lower mold base 2. The bidirectional threaded screw 27 is rotated to control the two clamping plates 26 to move horizontally toward each other, driving the two sliding plates 25 to clamp the lead frame 21, so that the lead frame 21 remains in the middle position of the lower mold base 2.

[0028] By setting up a control device, when cleaning the residual glue on the lead frame 21, first place the lead frame 21 inside the lower mold base 2, and then rotate the bidirectional threaded screw 27 to control the two clamping plates 26 to move horizontally toward each other, driving the two sliding plates 25 to clamp the lead frame 21, so that the lead frame 21 is kept in the middle position of the lower mold base 2, making it convenient for the insert plate 22 to be accurately inserted into the correct position on the side of the lead frame 21, and then insert the limit plate 23 into the insert plate 22, limit it with the limit screw 24, and then start the drive motor 4, so that the shaft drives the active bevel gear 5 to rotate The driving bevel gear 5 drives the driven bevel gear 6 to rotate, and the control rod 7 rotates with the driven bevel gear 6. The control rod 7 controls the movable plate 8 to move, driving the fixed circular plate 81 and the electric telescopic rod 82 to move. The electric telescopic rod 82 is started to control the glue removal knife 84 to descend and be placed on the lead frame 21, and the movable plate 8 drives the cross plate 83 and the glue removal knife 84 to move to clean the residual glue on the lead frame 21. After the electric telescopic rod 82 is turned off, the glue removal knife 84 moves up, which is convenient for cleaning the residual glue on the glue removal knife 84, thereby achieving the effect of facilitating the cleaning of the residual colloid on the glue removal knife 84.

[0029] Working principle: When cleaning the residual glue on the lead frame 21, first place the lead frame 21 inside the lower mold base 2, and then rotate the bidirectional threaded screw 27 to control the two clamping plates 26 to move horizontally toward each other, driving the two sliding plates 25 to clamp the lead frame 21, so that the lead frame 21 remains in the middle position of the lower mold base 2, making it convenient for the inserting plate 22 to be accurately inserted into the correct position on the side of the lead frame 21, and then insert the limiting plate 23 into the inserting plate 22, and limit it with the limiting screw 24, and then start the driving motor 4, let the rotating shaft drive the active bevel gear 5 to rotate, and the active bevel gear 5 drives the driven bevel gear 6 to rotate, and the control rod 7 rotates with the driven bevel gear 6, and the control rod 7 controls the movable plate 8 to move, driving the fixed circular plate 81 and the electric telescopic rod 82 to move, starting the electric telescopic rod 82 to control the glue removing knife 84 to descend and be placed on the lead frame 21, and the movable plate 8 drives the horizontal plate 83 and the glue removing knife 84 to move to clean the residual glue on the lead frame 21.

[0030] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A debonding die for punching and removing excess glue from a lead frame, comprising a mounting seat (1), characterized in that: A lower die base (2) and an upper die base (3) are fixedly mounted on the front end surface of the mounting base (1), and a control device is provided inside the upper die base (3). The control device comprises a driving motor (4), an active bevel gear (5), a driven bevel gear (6), a control rod (7) and a movable plate (8). The driving motor (4) controls the active bevel gear (5) to rotate, the active bevel gear (5) drives the driven bevel gear (6) and the control rod (7) to rotate, and the control rod (7) drives the movable plate (8) to move horizontally.

2. The debonding mold for punching and removing excess glue from a lead frame according to claim 1, characterized in that: The driving motor (4) is fixedly mounted inside the upper die base (3), the active bevel gear (5) is fixedly mounted on the rotating shaft of the driving motor (4), a sliding groove (31) is provided inside the upper die base (3), and the movable plate (8) is slidably inserted inside the sliding groove (31).

3. The debonding mold for punching and removing excess glue from a lead frame according to claim 1, characterized in that: The control rod (7) is threadedly connected to the inside of the movable plate (8), the driven bevel gear (6) is fixedly mounted on the right end surface of the control rod (7), the left end surface of the control rod (7) and the right end surface of the driven bevel gear (6) are both fixedly mounted with connecting rods (71), and the outer surfaces of the two connecting rods (71) are both fixedly mounted with fixed bearings (72), and the fixed bearings (72) are fixedly mounted inside the upper die base (3).

4. The debonding mold for punching and removing excess glue from a lead frame according to claim 2, characterized in that: The outer surface of the driven bevel gear (6) is meshed with the outer surface of the driving bevel gear (5); a forward and reverse switch (32) is fixedly installed on both sides of the sliding groove (31) inside the upper die base (3); the two forward and reverse switches (32) are electrically connected to the driving motor (4) through a wire; and a fixed circular plate (81) is fixedly installed on the lower surface of the movable plate (8).

5. The debonding mold for punching and removing excess glue from a lead frame according to claim 4, characterized in that: An electric telescopic rod (82) is fixedly mounted on the lower surface of the fixed circular plate (81), a horizontal plate (83) is fixedly mounted on the lower surface of the electric telescopic rod (82), a degumming knife (84) is fixedly mounted on the lower surface of the horizontal plate (83), a lead frame (21) is placed inside the lower mold base (2), and plug-in plates (22) are slidably inserted at both left and right ends of the lead frame (21), and limiting plates (23) are slidably inserted inside the two plug-in plates (22), and the internal threads of the plug-in plates (22) are connected to limiting screws (24), and the limiting screws (24) pass through the interior of the limiting plates (23) and are connected to the internal threads of the plug-in plates (22).

6. The debonding mold for punching and removing excess glue from a lead frame according to claim 5, characterized in that: The inner surface of the lower die base (2) is located at the front and rear of the lead frame (21) and is slidably connected to a sliding plate (25). The lower surfaces of the two sliding plates (25) are fixedly installed with a clamping plate (26). The clamping plate (26) is slidably inserted into the interior of the lower die base (2). The internal thread of the clamping plate (26) is connected to a bidirectional threaded screw (27). The front and rear ends of the bidirectional threaded screw (27) are fixedly installed with a rotating rod (28). The outer surface of the rotating rod (28) is fixedly installed with a limit bearing (29). The limit bearing (29) is fixedly installed inside the lower die base (2).

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