Feeding device for lead frame processing

Abstract

The utility model relates to the field of lead frames, in particular to a feeding device for lead frame processing. Comprising a bottom plate, two sets of supporting columns are symmetrically installed on the edge of the bottom of the bottom plate, a first installation plate is arranged above the bottom plate, two sets of stand columns are symmetrically installed on the edge of the bottom of the first installation plate, the bottoms of each set of stand columns are installed on the top of the bottom plate, and connecting columns are installed on the edge of the top of the bottom plate; a rotating rod is arranged at the end, away from the connecting column, of each first mounting plate, a second mounting plate is mounted on the outer wall of each rotating rod, the two ends of each rotating rod are rotationally connected to the bottoms of the inner walls of the two sides of the corresponding first mounting plate, and a second empty groove is formed in the top of each second mounting plate. According to the embodiment of the invention, the transportation difficulty caused by too high or too low lead frame processing device is avoided, the transportation flexibility is improved, and the working intensity is reduced while the transportation limitation is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of lead frames, and particularly relates to a feeding device for processing lead frames. 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 with external wires. Lead frames are required in most semiconductor integrated blocks and are an important basic material in the electronic information industry.

[0003] After searching, in the prior art, Chinese patent publication number: CN206401283U, authorization publication date: 2016-12-19, announced a lead frame feeding device, including a lead frame feeding assembly and a steel strip feeding assembly arranged on the feeding device frame, the lead frame feeding assembly is arranged longitudinally, the steel strip feeding assembly is arranged transversely at the discharge end on the left side of the rear end of the lead frame feeding assembly, and the steel strip feeding assembly includes a lead frame clamping mechanism and a lead frame conveying mechanism. The feeding spacing of the above embodiment is uniform.

[0004] However, the device still has the following defects: the above embodiment has limitations when the loading device transports the lead frame, and the lead frame processing device being too high or too low will cause transportation difficulties, thereby reducing the flexibility during transportation and increasing the workload of the staff. Summary of the invention

[0005] In view of the above problems, the utility model provides a feeding device for lead frame processing, comprising a base plate, two groups of support columns are symmetrically installed at the bottom edge of the base plate, a first mounting plate is arranged above the base plate, two groups of columns are symmetrically installed at the bottom edge of the first mounting plate, the bottom of each group of the columns is installed on the top of the base plate, a connecting column is installed at the top edge of the base plate, a rotating rod is arranged at one end of each group of the first mounting plates away from the connecting column, a second mounting plate is arranged on the outer wall of the rotating rod, and the two ends of the rotating rod are rotatably connected to the bottom of the inner walls on both sides of the first mounting plate, a second empty slot is opened at the top of the second mounting plate, a second conveyor belt is arranged in the second empty slot, and the two ends of the second conveyor belt are rotatably connected to the inner walls on both sides of the second mounting plate;

[0006] A fixing plate is arranged below the second mounting plate, one end of the fixing plate is mounted on a side wall of the first mounting plate, a third electric push rod is mounted on the top of the fixing plate, a connecting block is mounted on the output end of the third electric push rod, a stepping motor is mounted on the top of the connecting block, and the output end of the stepping motor is mounted on the bottom of the second mounting plate.

[0007] Furthermore, a first empty slot is provided at the top of the first mounting plate, a first conveyor belt is arranged in the first empty slot, and both ends of the first conveyor belt are installed on the top of the inner walls on both sides of the first mounting plate.

[0008] Furthermore, a machine box is installed on the top of the connecting column, and a cavity is opened on the side wall of the machine box close to the first conveyor belt. Two groups of screw rods are arranged in the cavity, and both ends of the two groups of screw rods are installed on the inner walls on both sides of the machine box. The central axes of the two groups of screw rods are located on the same straight line, and the thread directions of the two groups of screw rods are the same.

[0009] Furthermore, a motor is provided at one end of the machine box, and the output end of the screw rod passes through the machine box and is transmission-connected to one group of the screw rods, each group of the screw rods is threadedly connected to a group of sliders, and each group of the sliders slides in the cavity.

[0010] Furthermore, a group of connecting plates are installed on the top of a side wall of each group of sliders close to the first conveyor belt, a group of first electric push rods are installed on the bottom end of each group of connecting plates away from the sliders, a group of fixing blocks are installed on the output end of each group of the first electric push rods, and two groups of magnetic suction cups are symmetrically provided at the bottom edge of each group of fixing blocks.

[0011] Furthermore, two groups of material storage boxes are symmetrically installed on the top of the base plate, and each group of material storage boxes has a group of cavities on a side wall away from the first mounting plate, and each group of material storage boxes has a group of second electric push rods installed on the bottom inner wall.

[0012] Furthermore, a group of push plates are installed on the output end of each group of the second electric push rods, the outer walls of each group of the push plates are slidably fitted on the inner walls of the storage box, and several groups of lead frames are arranged on the top of each group of the push plates.

[0013] Furthermore, a group of electric slides are embedded at the edge of a side wall of each group of storage boxes away from the first mounting plate, and a group of baffles are installed on the output end of each group of electric slides.

[0014] The beneficial effects of the utility model are:

[0015] 1. The third electric push rod drives the connection block up and down and drives the stepper motor up and down at the same time, and the stepper motor drives the second mounting plate to move to the required position. This avoids the transportation difficulties caused by the lead frame processing device being too high or too low, increases the flexibility during transportation, reduces the limitations of transportation and reduces the work intensity.

[0016] 2. The electric slide drives the baffle down, and the staff places the lead frame on the push plate. The baffle is restored. When in use, the second electric push rod drives the push plate up and drives the lead frame up at the same time. This improves work efficiency and convenience.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a feeding device according to an embodiment of the utility model is shown;

[0020] Figure 2 A left side schematic diagram of a feeding device according to an embodiment of the utility model is shown;

[0021] Figure 3 A schematic diagram of the structure of a machine box according to an embodiment of the utility model is shown;

[0022] Figure 4 A schematic diagram of the baffle structure according to an embodiment of the utility model is shown;

[0023] Figure 5 A schematic diagram of the structure of a stepper motor according to an embodiment of the utility model is shown.

[0024] In the figure: 1, bottom plate; 2, support column; 3, first mounting plate; 4, column; 5, first empty slot; 6, first conveyor belt; 7, connecting column; 8, machine box; 9, cavity; 10, screw rod; 11, motor; 12, slider; 13, connecting plate; 14, first electric push rod; 15, fixed block; 16, magnetic suction cup; 17, storage box; 18, second electric push rod; 19, push plate; 20, lead frame; 21, electric slide; 22, baffle; 23, second mounting plate; 24, rotating rod; 25, second empty slot; 26, second conveyor belt; 27, fixed plate; 28, third electric push rod; 29, connecting block; 30, stepping motor. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The present utility model provides a feeding device for lead frame processing, for example, Figure 1 , Figure 2 and Figure 3 As shown, it includes a base plate 1, two groups of support columns 2 are symmetrically installed at the bottom edge of the base plate 1, a first mounting plate 3 is arranged above the base plate 1, two groups of columns 4 are symmetrically installed at the bottom edge of the first mounting plate 3, the bottom of each group of the columns 4 is installed on the top of the base plate 1, a first empty slot 5 is opened on the top of the first mounting plate 3, a first conveyor belt 6 is arranged in the first empty slot 5, both ends of the first conveyor belt 6 are installed on the top of the inner walls of both sides of the first mounting plate 3, a connecting column 7 is installed at the top edge of the base plate 1, a machine box 8 is installed on the top of the connecting column 7, a cavity 9 is opened on the side wall of the machine box 8 close to the first conveyor belt 6, two groups of screw rods 10 are arranged in the cavity 9, and both ends of the two groups of the screw rods 10 are installed on the two sides of the machine box 8 On the side inner wall, the central axes of the two groups of the screw rods 10 are located on the same straight line, and the thread directions of the two groups of the screw rods 10 are the same. A motor 11 is provided at one end of the machine box 8. The output end of the screw rod 10 passes through the machine box 8 and is transmission-connected to one of the groups of the screw rods 10. A group of sliders 12 are threadedly connected to each group of the screw rods 10, and each group of the sliders 12 slides in the cavity 9. A group of connecting plates 13 are installed on the top of one side wall of each group of the sliders 12 close to the first conveyor belt 6, and a group of first electric push rods 14 are installed at the bottom of each group of the connecting plates 13 away from the slider 12. A group of fixing blocks 15 are installed on the output end of each group of the first electric push rods 14, and two groups of magnetic suction cups 16 are symmetrically provided at the bottom edge of each group of the fixing blocks 15.

[0027] For example, Figure 1 , Figure 2 and Figure 4As shown, two groups of material storage boxes 17 are symmetrically installed on the top of the base plate 1, and a group of cavities are opened on the side wall of each group of material storage boxes 17 away from the first mounting plate 3, and a group of second electric push rods 18 are installed on the bottom inner wall of each group of material storage boxes 17, and a group of push plates 19 are installed on the output end of each group of second electric push rods 18, and the outer wall of each group of push plates 19 is slidably fitted on the inner wall of the material storage box 17, and a plurality of groups of lead frames 20 are arranged on the top of each group of push plates 19, and the edge of the side wall of each group of material storage boxes 17 away from the first mounting plate 3 is provided. A group of electric slides 21 are embedded in each place, and a group of baffles 22 are installed on the output end of each group of the electric slides 21. A rotating rod 24 is provided at the end of each group of the first mounting plate 3 away from the connecting column 7, and a second mounting plate 23 is installed on the outer wall of the rotating rod 24. The two ends of the rotating rod 24 are rotatably connected to the bottom of the inner walls on both sides of the first mounting plate 3. A second empty slot 25 is opened at the top of the second mounting plate 23, and a second conveyor belt 26 is arranged in the second empty slot 25. The two ends of the second conveyor belt 26 are rotatably connected to the inner walls on both sides of the second mounting plate 23.

[0028] For example, Figure 2 and Figure 5 As shown, a fixing plate 27 is provided below the second mounting plate 23, one end of the fixing plate 27 is mounted on a side wall of the first mounting plate 3, a third electric push rod 28 is mounted on the top of the fixing plate 27, a connecting block 29 is mounted on the output end of the third electric push rod 28, a stepping motor 30 is mounted on the top of the connecting block 29, and the output end of the stepping motor 30 is mounted on the bottom of the second mounting plate 23.

[0029] Working principle: the baffle 22 is driven down by the electric slide 21, and the staff places the lead frame 20 on the push plate 19, and the baffle 22 is restored. When in use, the second electric push rod 18 drives the push plate 19 to rise and drives the lead frame 20 to rise at the same time, the motor 11 drives the screw rod 10 to rotate and drives the slider 12 to slide in the cavity 9, the slider 12 drives the connecting plate 13 and drives the magnetic suction cup 16 to move, the first electric push rod 14 drives the magnetic suction cup 16 to descend, and the lead frame 20 is adsorbed on the magnetic suction cup 16, the first electric push rod 14 drives the magnetic suction cup 16 to rise, the motor 11 drives the connecting plate 13 to move again, the connecting plate 13 drives the magnetic suction cup 16 to move to the top of the first conveyor belt 6, the first electric push rod 14 drives the magnetic suction cup 16 to descend and place the lead frame 20 on the first conveyor belt 6, and the first conveyor belt 6 transports the lead frame 20 to the second conveyor belt 26.

[0030] The third electric push rod 28 drives the connection block 29 to move up and down, and at the same time drives the stepping motor 30 to move up and down, and the stepping motor 30 drives the second mounting plate 23 to move to a desired position.

[0031] Beneficial effect: The third electric push rod 28 drives the connection block 29 to rise and fall, and drives the stepper motor 30 to rise and fall, and the stepper motor 30 drives the second mounting plate 23 to move to a desired position. This avoids the lead frame processing device being too high or too low to cause transportation difficulties, increases the flexibility during transportation, reduces the limitations of transportation, and reduces the work intensity.

[0032] The electric slide 21 drives the baffle 22 down, and the staff places the lead frame 20 on the push plate 19, and the baffle 22 is restored. When in use, the second electric push rod 18 drives the push plate 19 up and drives the lead frame 20 up at the same time, thereby improving work efficiency and convenience.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A feeding device for lead frame processing, comprising a base plate (1), characterized in that: Two groups of support columns (2) are symmetrically installed at the bottom edge of the bottom plate (1), a first mounting plate (3) is arranged above the bottom plate (1), two groups of columns (4) are symmetrically installed at the bottom edge of the first mounting plate (3), the bottom of each group of columns (4) is installed on the top of the bottom plate (1), a connecting column (7) is installed at the top edge of the bottom plate (1), a rotating rod (24) is arranged at one end of each group of the first mounting plates (3) away from the connecting column (7), a second mounting plate (23) is installed on the outer wall of the rotating rod (24), the two ends of the rotating rod (24) are rotatably connected to the bottom of the inner walls on both sides of the first mounting plate (3), a second empty slot (25) is opened at the top of the second mounting plate (23), a second conveyor belt (26) is arranged in the second empty slot (25), and the two ends of the second conveyor belt (26) are rotatably connected to the inner walls on both sides of the second mounting plate (23); A fixing plate (27) is arranged below the second mounting plate (23); one end of the fixing plate (27) is mounted on a side wall of the first mounting plate (3); a third electric push rod (28) is mounted on the top of the fixing plate (27); a connecting block (29) is mounted on the output end of the third electric push rod (28); a stepping motor (30) is mounted on the top of the connecting block (29); and the output end of the stepping motor (30) is mounted on the bottom of the second mounting plate (23).

2. The lead frame processing feeding device according to claim 1, characterized in that: A first empty slot (5) is provided at the top of the first mounting plate (3), a first conveyor belt (6) is arranged in the first empty slot (5), and both ends of the first conveyor belt (6) are mounted on the tops of the inner walls on both sides of the first mounting plate (3).

3. The lead frame processing feeding device according to claim 2, characterized in that: A machine box (8) is installed on the top of the connecting column (7), and a cavity (9) is opened on a side wall of the machine box (8) close to the first conveyor belt (6). Two groups of screw rods (10) are arranged in the cavity (9), and both ends of the two groups of screw rods (10) are installed on the inner walls of the machine box (8) on both sides. The central axes of the two groups of screw rods (10) are located on the same straight line, and the thread directions of the two groups of screw rods (10) are the same.

4. The lead frame processing feeding device according to claim 3, characterized in that: A motor (11) is disposed at one end of the machine box (8); an output end of the lead screw (10) passes through the machine box (8) and is transmission-connected to one of the groups of lead screws (10); each group of lead screws (10) is threadedly connected to a group of sliders (12); and each group of sliders (12) slides in the cavity (9).

5. The lead frame processing feeding device according to claim 4, characterized in that: A group of connecting plates (13) are installed on the top of a side wall of each group of the sliders (12) close to the first conveyor belt (6), a group of first electric push rods (14) are installed on the bottom end of each group of the connecting plates (13) away from the sliders (12), a group of fixing blocks (15) are installed on the output end of each group of the first electric push rods (14), and two groups of magnetic suction cups (16) are symmetrically provided at the bottom edge of each group of the fixing blocks (15).

6. The lead frame processing feeding device according to claim 1, characterized in that: Two groups of material storage boxes (17) are symmetrically mounted on the top of the base plate (1), each group of material storage boxes (17) is provided with a group of cavities on a side wall away from the first mounting plate (3), and each group of material storage boxes (17) is provided with a group of second electric push rods (18) on the bottom inner wall.

7. The lead frame processing feeding device according to claim 6, characterized in that: A group of push plates (19) are installed on the output end of each group of the second electric push rods (18), the outer wall of each group of the push plates (19) is slidably fitted on the inner wall of the storage box (17), and a plurality of groups of lead frames (20) are arranged on the top of each group of the push plates (19).

8. The lead frame processing feeding device according to claim 7, characterized in that: A group of electric slides (21) are embedded at the edge of a side wall of each group of the material storage boxes (17) away from the first mounting plate (3), and a group of baffles (22) are installed on the output end of each group of the electric slides (21).

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