DIP lead frame forming die

Abstract

The utility model discloses a DIP lead frame forming die which comprises a lower die supporting table and an upper die supporting table, a lower die is arranged in the lower die supporting table, an upper die is installed in the upper die supporting table in a sliding mode, the upper die supporting table is provided with a cavity at the upper end of the upper die, and a cleaning mechanism is arranged in the cavity. The cleaning mechanism comprises a second lead screw rotationally installed in the cavity, one end of the second lead screw penetrates through the outer surface of the upper die supporting table and is fixedly connected with a circular gear, a scraping plate is arranged on the second lead screw in a threaded and stringed mode, and two leakage holes are formed in the two sides of the inner wall of the upper die supporting table. And two collecting mechanisms are arranged on the two sides of the lower end of the upper die supporting table and located at the lower ends of the two leaking holes correspondingly. According to the utility model, the waste generated by stamping of the upper die is collected in the two collecting boxes through the scraping plate by the cleaning mechanism, so that the waste is prevented from being accumulated in the die, and the equipment needs to be repeatedly started and stopped.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of DIP lead frame processing, in particular to a DIP lead frame forming die. Background Art

[0002] As the chip carrier of integrated circuits, the lead frame is a key structural component that uses bonding materials to achieve electrical connection between the internal circuit lead ends of the chip and the external leads to form an electrical circuit. It serves as a bridge to connect to external wires and is mainly produced by mold stamping and chemical etching.

[0003] During the production process using the die stamping method, the waste generated by die stamping will accumulate in the cavity inside the die. The stamping bed needs to be shut down intermittently to wait for the shutdown before the waste in the die cavity can be taken out. Frequent start and stop not only reduces the working efficiency of the machine, but also affects the working performance of the machine. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a DIP lead frame forming die.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A DIP lead frame forming mold comprises a lower mold support platform and an upper mold support platform, wherein the lower mold support platform is provided with a lower mold, and the upper mold support platform is slidably installed with an upper mold, and the upper mold support platform is provided with a cavity at the upper end of the upper mold, and a cleaning mechanism is provided in the cavity, and the cleaning mechanism comprises a second screw rod rotatably installed in the cavity, one end of the second screw rod passes through the outer surface of the upper mold support platform and is fixedly connected with a circular gear, a scraper is threadedly arranged on the second screw rod, two leakage holes are provided on both sides of the inner wall of the upper mold support platform, and two collecting mechanisms are respectively provided at the lower ends of the two leakage holes on both sides of the lower end of the upper mold support platform.

[0007] As a further description of the above technical solution, a hole is provided in the middle of the upper mold, and the hole is connected with the cavity.

[0008] As a further description of the above technical solution, the collection mechanism includes a connecting box fixedly installed on one side of the lower end of the upper mold support platform, a collection box is slidably installed in the connecting box, a handle is fixedly connected to one side of the collection box, and a locking assembly is provided between one side of the handle and an outer wall of one side of the upper mold support platform.

[0009] As a further description of the above technical solution, the locking assembly includes a wedge-shaped limit block, a first wedge-shaped groove is opened on the outer wall of one side of the upper mold support platform, the wedge-shaped limit block is slidably installed in the first wedge-shaped groove, a second wedge-shaped groove corresponding to the first wedge-shaped groove is opened on one side of the collection box, and the wedge-shaped limit block is slidably connected to the second wedge-shaped groove.

[0010] As a further description of the above technical solution, four sliding rods are fixedly installed at the four corners of the upper end of the lower mold support platform, one end of the four sliding rods respectively penetrates the upper mold support platform and is slidably connected thereto, two of the sliding rods are fixedly connected to one side of the lower mold support platform with a fixed plate and a connecting plate, a long tooth rod is fixedly installed between the fixed plate and the connecting plate, and the circular gear is meshed with the long tooth rod.

[0011] As a further description of the above technical solution, the upper mold support platform is provided with an elongated groove on one side of the upper mold, and a square limit block is slidably installed in the elongated groove. A pull rod is fixedly connected to one side of the square limit block. The pull rod passes through the upper mold support platform and is slidably connected thereto, and one end of the pull rod is fixedly connected to the pull block. A square groove is provided on one side of the upper mold, and the square limit block is adapted to the square groove.

[0012] As a further description of the above technical solution, a return spring is fixedly connected between one side of the square limit block and the inner wall of the elongated groove, and the return spring is slidably sleeved on the outer surface of the pull rod.

[0013] As a further description of the above technical solution, a receiving groove is provided in the lower mold support platform, and the lower mold is slidably installed in the receiving groove. A first screw rod is rotatably installed at the lower end of the receiving groove, and a clamping block is threadedly strung on the first screw rod. One end of the first screw rod passes through the lower mold support platform and is fixedly connected to a knob. A clamping groove is provided at the bottom end of the lower mold, and the clamping block is slidably engaged in the clamping groove.

[0014] As a further description of the above technical solution, the card slot is arranged in an oblique groove shape on the other side adapted to the card block.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, the waste generated by the stamping of the upper mold is collected in two collection boxes by a cleaning mechanism through a scraper, so as to avoid the waste accumulating in the mold, requiring repeated starting and stopping of the equipment, and affecting the working efficiency of the equipment.

[0017] 2. In the utility model, the upper mold and the lower mold can be disassembled through the cooperation between the square limit block and the square groove, and the cooperation between the clamping block and the clamping groove, so as to facilitate the maintenance and replacement of the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure inside the upper mold support platform of the utility model

[0020] Figure 3 It is a cross-sectional view of the upper die support platform of the utility model;

[0021] Figure 4 It is a cross-sectional view of the lower die support platform of the utility model;

[0022] Figure 5 for Figure 3 A magnified view of the structure in the middle.

[0023] Reference numerals: 10, lower die support platform; 101, receiving groove; 11, lower die; 111, clamping groove; 12, first screw rod; 13, clamping block; 14, knob;

[0024] 20. upper die support platform; 201. cavity; 202. long groove; 203. leak hole; 204. first wedge-shaped groove; 21. upper die; 211. square groove; 22. square stopper; 23. pull rod; 24. return spring; 25. pull block; 26. wedge-shaped stopper; 27. second screw rod; 271. scraper; 28. round gear; 29. ​​connection box;

[0025] 30. Sliding rod; 31. Fixed plate; 32. Connecting plate; 33. Long tooth rod;

[0026] 40. Collection box; 401. Second wedge-shaped groove; 41. Handle. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0028] Please refer to the attached Figure 1-5As shown, the utility model provides a technical solution: a DIP lead frame molding mold, comprising a lower mold support platform 10 and an upper mold support platform 20, wherein a lower mold 11 is arranged in the lower mold support platform 10, an upper mold 21 is slidably installed in the upper mold support platform 20, and a cavity 201 is opened at the upper end of the upper mold 21 of the upper mold support platform 20, and a cleaning mechanism is arranged in the cavity 201, and the cleaning mechanism comprises a second screw rod 27 rotatably installed in the cavity 201, one end of the second screw rod 27 passes through the outer surface of the upper mold support platform 20 and is fixedly connected with a circular gear 28, a scraper 271 is threadedly arranged on the second screw rod 27, two leakage holes 203 are opened on both sides of the inner wall of the upper mold support platform 20, and two collecting mechanisms are respectively arranged at the lower ends of the two leakage holes 203 on both sides of the lower end of the upper mold support platform 20.

[0029] In this embodiment, a hole is provided in the middle of the upper mold 21 , and the hole is connected with the cavity 201 , so that waste materials generated by stamping the upper mold 21 can enter the cavity 201 .

[0030] In this embodiment, the collection mechanism includes a connecting box 29 fixedly mounted on one side of the lower end of the upper mold support platform 20, a collection box 40 is slidably mounted in the connecting box 29, a handle 41 is fixedly connected to one side of the collection box 40, and a locking assembly is provided between one side of the handle 41 and an outer wall of one side of the upper mold support platform 20 of the collection box 40.

[0031] In this embodiment, the locking assembly includes a wedge-shaped limit block 26, and a first wedge-shaped groove 204 is opened on the outer wall of one side of the upper mold support platform 20. The wedge-shaped limit block 26 is slidably installed in the first wedge-shaped groove 204. A second wedge-shaped groove 401 corresponding to the first wedge-shaped groove 204 is opened on one side of the collection box 40. The wedge-shaped limit block 26 is slidably connected to the second wedge-shaped groove 401. By sliding the wedge-shaped limit block 26 to engage in the second wedge-shaped groove 401, the collection box 40 in the connecting box 29 is fixed to prevent the collection box 40 from slipping out of the connecting box 29 when the equipment is running.

[0032] In this embodiment, four sliding rods 30 are fixedly installed at the four corners of the upper end of the lower mold support platform 10, and one end of the four sliding rods 30 passes through the upper mold support platform 20 and is slidably connected thereto. Two of the sliding rods 30 are fixedly connected to one side of the lower mold support platform 10 with a fixed plate 31 and a connecting plate 32, respectively. A long tooth rod 33 is fixedly installed between the fixed plate 31 and the connecting plate 32, and the circular gear 28 is meshed with the long tooth rod 33.

[0033] Specifically, during the stamping descent of the upper die support platform 20, the circular gear 28 rotates on the long tooth rod 33 to drive the second screw to rotate, driving the scraper 271 to move from one end of the cavity 201 to the other end. When the waste enters the cavity 201 from the hole in the upper mold 21, when the upper die support platform 20 rises, the cooperation between the circular gear 28 and the long tooth rod 33 causes the circular gear 28 to rotate in the opposite direction, and the scraper 271 scrapes the waste in the cavity 201 into the leak hole 203, and the waste falls into the collection box 40 in the connecting box 29 for collection.

[0034] In this embodiment, the upper mold support platform 20 is provided with an elongated groove 202 on one side of the upper mold 21, and a square limit block 22 is slidably installed in the elongated groove 202. A pull rod 23 is fixedly connected to one side of the square limit block 22. The pull rod 23 passes through the upper mold support platform 20 and is slidably connected thereto. A pull block 25 is fixedly connected to one end of the pull rod 23. A square groove 211 is provided on one side of the upper mold 21, and the square limit block 22 is adapted to the square groove 211.

[0035] In this embodiment, a return spring 24 is fixedly connected between one side of the square limit block 22 and the inner wall of the elongated slot 202 , and the return spring 24 is slidably sleeved on the outer surface of the pull rod 23 .

[0036] By pulling the pull block 25 , the pull rod 23 pulls the square limit block 22 to squeeze the return spring 24 , so that the square limit block 22 is disengaged from the square groove 211 , thereby releasing the fixation of the upper mold 21 , and facilitating the disassembly of the upper mold 21 .

[0037] In this embodiment, a receiving groove 101 is opened in the lower mold support platform 10, and the lower mold 11 is slidably installed in the receiving groove 101. A first screw rod 12 is rotatably installed at the lower end of the receiving groove 101, and a clamping block 13 is threadedly strung on the first screw rod 12. One end of the first screw rod 12 passes through the lower mold support platform 10 and is fixedly connected to a knob 14. A clamping groove 111 is opened at the bottom end of the lower mold 11, and the clamping block 13 is slidably engaged in the clamping groove 111.

[0038] In this embodiment, the other side of the card slot 111 that matches the card block is set in the shape of an inclined groove. The card block 13 moves into the inclined groove in the card slot 111 to push the lower mold 11 up, making it easier to remove the lower mold 11 from the lower mold support platform 10.

[0039] By turning the knob 14 to drive the first screw rod 12 to rotate, the block 13 is driven to move on the first screw rod 12, and the upper end of the block 13 moves out of the slot 111 in the slot 111, so that the lower mold 11 is released from fixation. When the block 13 continues to move in the slot 111, the block 13 will move to the inclined groove in the slot 111, pushing the lower mold 11 to move up in the accommodating groove 101, so as to facilitate the removal of the lower mold 11.

[0040] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A DIP lead frame forming die, comprising a lower die support platform (10) and an upper die support platform (20), characterized in that: A lower mold (11) is provided in the lower mold support platform (10), and an upper mold (21) is slidably installed in the upper mold support platform (20). The upper mold support platform (20) is provided with a cavity (201) at the upper end of the upper mold (21), and a cleaning mechanism is provided in the cavity (201), and the cleaning mechanism comprises a second screw rod (27) rotatably installed in the cavity (201), one end of the second screw rod (27) passes through the outer surface of the upper mold support platform (20) and is fixedly connected to a circular gear (28), and a scraper (271) is threadedly arranged on the second screw rod (27), two leakage holes (203) are provided on both sides of the inner wall of the upper mold support platform (20), and two collecting mechanisms are respectively provided at the lower ends of the two leakage holes (203) on both sides of the lower end of the upper mold support platform (20).

2. The DIP lead frame forming die according to claim 1, characterized in that: A hole is provided in the middle of the upper mold (21), and the hole is connected to the cavity (201).

3. The DIP lead frame forming die according to claim 1, characterized in that: The collecting mechanism comprises a connecting box (29) fixedly mounted on one side of the lower end of the upper die support platform (20), a collecting box (40) being slidably mounted in the connecting box (29), a handle (41) being fixedly connected to one side of the collecting box (40), and a locking assembly being provided between one side of the handle (41) and an outer wall of one side of the upper die support platform (20) of the collecting box (40).

4. The DIP lead frame forming die according to claim 3, characterized in that: The locking assembly comprises a wedge-shaped limit block (26); a first wedge-shaped groove (204) is provided on an outer wall of one side of the upper mold support platform (20); the wedge-shaped limit block (26) is slidably installed in the first wedge-shaped groove (204); a second wedge-shaped groove (401) corresponding to the first wedge-shaped groove (204) is provided on one side of the collection box (40); the wedge-shaped limit block (26) is slidably connected to the second wedge-shaped groove (401).

5. The DIP lead frame forming die according to claim 1, characterized in that: Four sliding rods (30) are fixedly installed at the four corners of the upper end of the lower die support platform (10), one end of the four sliding rods (30) respectively penetrates the upper die support platform (20) and is slidably connected thereto, two of the sliding rods (30) are fixedly connected to one side of the lower die support platform (10) with a fixing plate (31) and a connecting plate (32), a long toothed rod (33) is fixedly installed between the fixing plate (31) and the connecting plate (32), and the circular gear (28) is meshed with the long toothed rod (33).

6. The DIP lead frame forming die according to claim 1, characterized in that: The upper mold support platform (20) is provided with an elongated groove (202) on one side of the upper mold (21), a square limit block (22) is slidably installed in the elongated groove (202), one side of the square limit block (22) is fixedly connected with a pull rod (23), the pull rod (23) passes through the upper mold support platform (20) and is slidably connected thereto, one end of the pull rod (23) is fixedly connected with a pull block (25), and a square groove (211) is provided on one side of the upper mold (21), and the square limit block (22) is adapted to the square groove (211).

7. The DIP lead frame forming die according to claim 6, characterized in that: A return spring (24) is fixedly connected between one side of the square limit block (22) and the inner wall of the long groove (202), and the return spring (24) is slidably sleeved on the outer surface of the pull rod (23).

8. The DIP lead frame forming die according to claim 1, characterized in that: A receiving groove (101) is provided in the lower die support platform (10), and the lower die (11) is slidably installed in the receiving groove (101). A first screw rod (12) is rotatably installed at the lower end of the receiving groove (101), and a clamping block (13) is threadedly arranged on the first screw rod (12). One end of the first screw rod (12) passes through the lower die support platform (10) and is fixedly connected to a knob (14). A clamping groove (111) is provided at the bottom end of the lower die (11), and the clamping block (13) is slidably engaged in the clamping groove (111).

9. The DIP lead frame forming die according to claim 8, characterized in that: The clamping groove (111) is arranged in the shape of an oblique groove on the other side adapted to the clamping block.

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