Conveying device for lead frame processing

Abstract

The utility model discloses a conveying device for lead frame processing, which belongs to the technical field of lead frame processing and comprises a conveying frame, a plurality of rotating shafts are rotatably arranged in the conveying frame, a protective shell is arranged on the outer side of the conveying frame, one end of each rotating shaft penetrates into the protective shell and is sleeved with a chain wheel, and the other end of each rotating shaft is sleeved with a chain wheel. The multiple chain wheels are in transmission connection through a chain, the outer sides of the multiple rotating shafts are symmetrically sleeved with rolling wheels, the rolling wheels are fixedly connected with the rotating shafts through bolts, bosses used for bearing the lead frame are arranged on the inner sides of the rolling wheels, and an adjusting assembly used for adjusting the installation distance between the rolling wheels on the rotating shafts is arranged in the conveying frame. The lead frame conveying device has the advantages that the lead frame is placed on the boss to be conveyed by arranging the rotating shaft, the idler wheel and the boss, a silver plating area of a product is in a suspended state and does not make contact with the boss and the rotating roller, contact friction of the silver plating area is avoided, and the percent of pass of the product is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lead frame processing, in particular to a conveying device for lead frame processing. Background Art

[0002] Bending and cutting process in the lead frame processing: the coiled copper material passes through the leveling machine from the unwinding machine, and then enters the punching machine, where the copper material is bent by the core pressing die and cut into sheet frames; the sheet frames are sent to the receiving machine for stacking via a conveyor belt.

[0003] The feeder feeds the copper material to the punching machine, and the silver-plated feet of the product are bent through the core pressing die. The bent silver-plated feet protrude downward. During the transportation of products by traditional belt conveyors, the silver-plated area of ​​the product contacts the running belt, and the silver-plated surface will rub against the surface of the running belt, which can easily cause scratches or black marks on the silver-plated surface, and cannot meet the customer's appearance requirements for the product. Utility Model Content

[0004] The utility model aims to solve the above-mentioned technical problems and provides a conveying device for lead frame processing.

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

[0006] A conveying device for processing a lead frame comprises a conveying frame, wherein a plurality of rotating shafts are rotatably arranged inside the conveying frame, a protective shell is arranged outside the conveying frame, one end of the plurality of rotating shafts penetrates into the protective shell and is sleeved with a sprocket, the plurality of sprockets are connected by chain transmission, a motor for driving one of the rotating shafts to rotate is arranged outside the protective shell, rollers are symmetrically sleeved outside the plurality of rotating shafts, the rollers are fixedly connected to the rotating shafts by bolts, a boss for supporting the lead frame is arranged inside the roller, and an adjusting component for adjusting the installation spacing of the rollers on the rotating shaft is arranged inside the conveying frame;

[0007] The adjustment assembly includes a bidirectional screw rod rotatably arranged inside the conveying frame and two movable plates symmetrically slidably arranged on the inner bottom surface of the conveying frame. One end of the bidirectional screw rod passes through the outside of the conveying frame and is provided with an operating handle. The two movable plates are provided with threaded holes that cooperate with the bidirectional screw rod, and the outer surfaces of the multiple rollers are provided with annular grooves that cooperate with the movable plates.

[0008] As a further description of the above technical solution:

[0009] The inner bottom surface of the conveying frame is provided with scale lines matched with the movable plate.

[0010] As a further description of the above technical solution:

[0011] The width of the annular groove is greater than the thickness of the movable plate, the upper end surface of the movable plate is lower than the lower end surface of the annular groove, and the two ends of the movable plate are provided with indicating pieces matching the scale lines.

[0012] As a further description of the above technical solution:

[0013] The indicator includes a connecting plate and a threaded column fixed on the inner side of the connecting plate, the end of the movable plate is provided with a mounting hole for the threaded column to movably pass through, the outer surface of the threaded column is threadedly connected with a threaded sleeve, and the outer side of the connecting plate is provided with a pointer that matches the scale line.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] In the utility model, by arranging a rotating shaft, a roller and a boss, the lead frame is placed on the boss for transportation, and the silver-plated area of ​​the product is in a suspended state and does not contact the boss and the rotating roller, thereby avoiding contact friction of the silver-plated area and improving the qualified rate of the product.

[0016] In the utility model, by setting an adjustment component, under the cooperation between the movable plate and the annular groove of the roller, it is convenient for the staff to adjust the installation spacing of the roller on the rotating shaft to meet the conveying of silver-plated products of different sizes.

[0017] In the utility model, by setting the scale line and the pointer part, it is convenient for the staff to intuitively understand the distance between the two rollers, that is, the staff can quickly adjust the distance between the two rollers to meet the conveying requirements of the silver-plated products of this size. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure shows the appearance of the conveying device provided according to the embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the structure of the adjustment component provided according to an embodiment of the utility model is shown;

[0020] Figure 3 A schematic diagram of the structure of a rotating shaft provided according to an embodiment of the utility model is shown;

[0021] Figure 4 A schematic diagram of the structure of an indicator provided according to an embodiment of the utility model is shown.

[0022] Legend: 1. Conveyor frame; 2. Protective shell; 3. Motor; 4. Rotating shaft; 5. Scale line; 6. Moving plate; 7. Bidirectional screw rod; 8. Connecting plate; 9. Threaded column; 10. Mounting hole; 11. Threaded sleeve; 12. Pointer; 13. Sprocket; 14. Boss; 15. Annular groove; 16. Roller. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments 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.

[0024] Embodiment 1:

[0025] As shown in 1-4, a conveying device for processing a lead frame includes a conveying frame 1, a plurality of rotating shafts 4 are rotatably arranged inside the conveying frame 1, a protective shell 2 is arranged outside the conveying frame 1, one end of the plurality of rotating shafts 4 penetrates into the protective shell 2 and is sleeved with a sprocket 13, the plurality of sprockets 13 are connected by chain transmission, a motor 3 for driving one of the rotating shafts 4 to rotate is arranged outside the protective shell 2, rollers 16 are symmetrically sleeved outside the plurality of rotating shafts 4, the rollers 16 are fixedly connected to the rotating shafts 4 by bolts, a boss 14 for supporting the lead frame is arranged inside the roller 16, and an adjusting component for adjusting the installation spacing of the rollers 16 on the rotating shafts 4 is arranged inside the conveying frame 1;

[0026] The adjusting assembly includes a bidirectional screw rod 7 rotatably arranged inside the conveying frame 1 and two movable plates 6 symmetrically slidably arranged on the inner bottom surface of the conveying frame 1. One end of the bidirectional screw rod 7 passes through the outside of the conveying frame 1 and is provided with an operating handle. The two movable plates 6 are provided with threaded holes that cooperate with the bidirectional screw rod 7. The outer surfaces of multiple rollers 16 are provided with annular grooves 15 that cooperate with the movable plates 6. First, the bolts on the rollers 16 are loosened respectively, and then the bidirectional screw rod 7 is rotated to drive the two movable plates 6 to move away from or towards each other. Under the cooperation of the movable plate 6 and the annular groove 15, the multiple rollers 16 are driven to move synchronously to achieve the effect of adjusting the installation spacing of the rollers 16, and then the bolts are tightened in sequence to fix the rollers 16.

[0027] Furthermore, the inner bottom surface of the conveying frame 1 is provided with scale lines 5 matched with the movable plate 6 , and by observing the position of the movable plate 6 at the scale lines 5 , the staff can intuitively understand the installation spacing of the rollers 16 .

[0028] Embodiment 2:

[0029] As shown in 1-4, the width of the annular groove 15 is greater than the thickness of the movable plate 6, the upper end surface of the movable plate 6 is lower than the lower end surface of the annular groove 15, and the ends of the two movable plates 6 are provided with indicators that match the scale lines 5. After the staff adjusts the installation spacing of the rollers 16, they can rotate the bidirectional screw 7 in the opposite direction to drive the two movable plates 6 to retract slightly, so that the outer surface of the movable plate 6 does not contact the inner surface of the annular groove 15, thereby effectively avoiding friction resistance during the rotation of the rollers 6.

[0030] Furthermore, the indicator includes a connecting plate 8 and a threaded column 9 fixed on the inner side of the connecting plate 8. A mounting hole 10 for the threaded column 9 to movably pass through is opened at the end of the movable plate 6. A threaded sleeve 11 is threadedly connected to the outer surface of the threaded column 9. A pointer 12 matching the scale line 5 is provided on the outer side of the connecting plate 8. The threaded column 9 passes through the mounting hole 10, and then the threaded sleeve 11 is screwed on. The distance between the threaded sleeve 11 and the connecting plate 8 is controlled by rotating the threaded sleeve 11, so that the distance value is the same as the width value of the annular groove 15, so that in the later movement of the movable plate 6, the pointer 12 indicates the scale more accurately represents the distance between the two rollers 16, avoiding the presence of a gap between the movable plate 6 and the annular groove 15, which affects the accuracy of the indication.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A conveying device for lead frame processing, comprising a conveying frame (1), characterized in that: The conveying frame (1) is provided with a plurality of rotating shafts (4) for rotation inside, a protective shell (2) is provided on the outside of the conveying frame (1), one end of the plurality of rotating shafts (4) penetrates into the protective shell (2) and is sleeved with a sprocket (13), the plurality of sprockets (13) are connected by chain transmission, a motor (3) is provided on the outside of the protective shell (2) for driving one of the rotating shafts (4) to rotate, rollers (16) are symmetrically sleeved on the outside of the plurality of rotating shafts (4), the rollers (16) are fixedly connected to the rotating shafts (4) by bolts, a boss (14) for supporting a lead frame is provided on the inside of the rollers (16), and an adjusting component for adjusting the installation spacing of the rollers (16) on the rotating shafts (4) is provided inside the conveying frame (1); The adjustment assembly comprises a bidirectional screw rod (7) rotatably arranged inside the conveying frame (1) and two movable plates (6) symmetrically slidably arranged on the inner bottom surface of the conveying frame (1), one end of the bidirectional screw rod (7) passes through the outside of the conveying frame (1) and is provided with an operating handle, the two movable plates (6) are provided with threaded holes matching with the bidirectional screw rod (7), and the outer surfaces of the plurality of rollers (16) are provided with annular grooves (15) matching with the movable plates (6).

2. A conveying device for lead frame processing according to claim 1, characterized in that: The inner bottom surface of the conveying frame (1) is provided with scale lines (5) that match the movable plate (6).

3. The conveying device for lead frame processing according to claim 1, characterized in that: The width of the annular groove (15) is greater than the thickness of the movable plate (6); the upper end surface of the movable plate (6) is lower than the lower end surface of the annular groove (15); and indicator pieces matching the scale lines (5) are provided at the ends of the two movable plates (6).

4. A conveying device for lead frame processing according to claim 3, characterized in that: The indicator comprises a connecting plate (8) and a threaded column (9) fixedly arranged on the inner side of the connecting plate (8); a mounting hole (10) for the threaded column (9) to movably pass through is provided at the end of the movable plate (6); a threaded sleeve (11) is threadedly connected to the outer surface of the threaded column (9); and a pointer (12) matching the scale line (5) is provided on the outer side of the connecting plate (8).

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