Four-column material collecting and conveying device for sheet-shaped lead frame

Abstract

The utility model discloses a four -row material collecting conveyor for sheet lead frame relates to material collecting conveyor field, including conveyer belt, roller, downward conveyer belt, upward conveyer belt, the both ends symmetrical swing joint of conveyer belt top has level -adjusting subassembly, and the outer wall of roller is installed with first chromium plating stainless steel conical guide pulley, second chromium plating stainless steel conical guide pulley, and the outside of conveyer belt is installed with first drive frame, and the central of first drive frame bottom is provided with movable slot, and the inner chamber of movable slot is rotatably connected with two -way screw rod, and the side of level -adjusting subassembly bottom is installed with servo motor. The utility model discloses a four -row material collecting conveyor for sheet lead frame can handle four -row lead frame's material collecting conveyor simultaneously, can solve the problem of low conveying speed, and simultaneously need to ensure that lead frame is not damaged in the conveying process, can realize automatic control, reduce manual intervention, improve production efficiency, and the precision of material distribution can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of material receiving and conveying devices, and in particular to a four-column material receiving and conveying device for sheet-like lead frames. Background Technology

[0002] Leadframes are critical components in semiconductor packaging, used to connect chips to external circuits. During leadframe production, the take-up and conveyor system is crucial for ensuring production efficiency and quality. Traditional take-up and conveyor systems are mostly single-row or double-row designs, which are insufficient to meet the demands of high throughput and high precision.

[0003] Existing material receiving and conveying devices for lead frames have the following drawbacks: low conveying speed; easy to damage products during conveying; lack of automated control, requiring manual intervention, resulting in low material receiving efficiency; and bulky structure, making operation difficult.

[0004] Therefore, it is necessary to propose a four-column receiving and conveying device for sheet lead frames to solve the above problems. Utility Model Content

[0005] The main objective of this invention is to provide a four-column receiving and conveying device for sheet-like lead frames, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A four-column receiving and conveying device for sheet lead frames includes a conveyor belt, rollers, a downward conveyor belt, and an upward conveyor belt. The top ends of the conveyor belts are symmetrically and movably connected with leveling components. The outer walls of the rollers are equipped with a first chrome-plated stainless steel conical guide wheel and a second chrome-plated stainless steel conical guide wheel.

[0007] Preferably, a first drive frame is installed on the outside of the conveyor belt, and a movable groove is opened in the center of the bottom of the first drive frame. A bidirectional lead screw is rotatably connected in the inner cavity of the movable groove. A servo motor is installed on the side of the bottom of the leveling component, and the servo motor is connected to the bidirectional lead screw through a first rotating shaft.

[0008] Preferably, C-shaped rods are symmetrically installed on opposite sides of the two leveling components, and the bottom of the C-shaped rods is movably connected in the inner cavity of the movable groove and threadedly connected to the outer wall of the bidirectional lead screw.

[0009] Preferably, a second drive frame is installed at both ends of the roller, and a synchronous pulley for driving the roller is installed in the inner cavity of the second drive frame. There are eight rollers. The second chrome-plated stainless steel conical guide wheel is bi-conical and is installed in the center of the outer wall of the right roller. The first chrome-plated stainless steel conical guide wheel is uni-conical and is installed on the outer wall of the remaining rollers.

[0010] Preferably, the first chrome-plated stainless steel tapered guide wheels are staggered and used to divide the conveyed sheet-like lead frame into smaller pieces. The other ends of the downward conveyor belt and the upward conveyor belt are both used to extend into the double-row flip-plate receiving machine.

[0011] Preferably, the roller has symmetrical adjustment grooves at the center of its top and bottom, one end of the first chrome-plated stainless steel conical guide wheel has a groove, and adjustment blocks are symmetrically installed at the top and bottom of the inner cavity of the first chrome-plated stainless steel conical guide wheel. The adjustment blocks are movably connected in the inner cavity of the adjustment groove, and a positioning bolt is threaded into the inner cavity of the groove. The other end of the positioning bolt passes through the adjustment block and fits against the inner wall of the adjustment groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This four-column receiving and conveying device for sheet lead frames can simultaneously handle the receiving and conveying of four columns of lead frames, solving the problem of low conveying speed. At the same time, it must ensure that the lead frames are not damaged during the conveying process, realize automated control, reduce manual intervention, improve production efficiency, and ensure the accuracy of material distribution.

[0013] 2. The four-column receiving and conveying device for sheet-shaped lead frames can drive the bidirectional lead screw to rotate by activating the servo motor, so that the bottom of the C-shaped rod can be threaded into the bidirectional lead screw. At this time, the leveling component can be moved. When the conveyor belt conveys the lead frame, it can be leveled to ensure that the initial position of the conveyor is horizontal, which can improve the efficiency and accuracy of subsequent conveying.

[0014] 3. This four-column receiving and conveying device for sheet-shaped lead frames can separate the four columns of lead frames by means of a first chrome-plated stainless steel conical guide wheel and a second chrome-plated stainless steel conical guide wheel. The first chrome-plated stainless steel conical guide wheel can separate the four columns of lead frames into three columns, namely one middle column and two columns at both ends. The second chrome-plated stainless steel conical guide wheel can separate the middle column of lead frames into two columns, so that they can be subsequently transported by the downward conveyor belt and the upward conveyor belt. The setting of the adjustment groove and the positioning bolt can facilitate the adjustment of the spacing of the first chrome-plated stainless steel conical guide wheel according to the size of the lead frame. Based on this, it can be adapted to lead frames of various sizes for material separation and conveying. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the first drive frame of this utility model; Figure 3 This is a schematic diagram of the structure of the second drive frame of this utility model; Figure 4 This is a schematic diagram of the structure of the roller of this utility model.

[0016] In the diagram: 1. Conveyor belt; 2. First drive frame; 3. Leveling assembly; 4. C-shaped rod; 5. Movable groove; 6. Bidirectional lead screw; 7. Servo motor; 8. Second drive frame; 9. Roller; 10. First chrome-plated stainless steel tapered guide wheel; 11. Second chrome-plated stainless steel tapered guide wheel; 12. Adjustment groove; 13. Groove; 14. Positioning bolt; 15. Adjusting block; 16. Downward conveyor belt; 17. Upward conveyor belt. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figures 1-4As shown, a four-column receiving conveyor for sheet-like lead frames includes a conveyor belt 1, rollers 9, a downward conveyor belt 16, and an upward conveyor belt 17. Leveling components 3 are symmetrically and movably connected to both ends of the top of the conveyor belt 1. A first chrome-plated stainless steel conical guide wheel 10 and a second chrome-plated stainless steel conical guide wheel 11 are installed on the outer wall of the rollers 9. A first drive frame 2 is installed outside the conveyor belt 1. A movable groove 5 is formed in the center of the bottom of the first drive frame 2. A bidirectional lead screw 6 is rotatably connected to the inner cavity of the movable groove 5. A servo motor 7 is installed on the side of the bottom of the leveling component 3. The servo motor 7 is connected to the bidirectional lead screw 6 via a first rotating shaft. C-shaped rods 4 are symmetrically installed on opposite sides of the two leveling components 3. The bottom of the C-shaped rods 4 is movably connected to the inner cavity of the movable groove 5 and threaded to the outer wall of the bidirectional lead screw 6. Second drive frames 8 are installed at both ends of the rollers 9. Synchronous pulleys for driving the rollers 9 are installed in the inner cavity of the second drive frame 8. There are eight rollers 9. The second chrome-plated stainless steel conical guide wheel 11 is double-sided conical. The second chrome-plated stainless steel conical guide wheel 11 is installed in the center of the outer wall of the right roller 9. The first chrome-plated stainless steel conical guide wheel 10 is single-sided conical. The first chrome-plated stainless steel conical guide wheel 10 is installed in the outer wall of the remaining rollers 9. The first chrome-plated stainless steel conical guide wheels 10 are staggered and are used to process the conveyed sheet-like lead frame. The other ends of the downward conveyor belt 16 and the upward conveyor belt 17 are used to extend into the double-row flip-plate receiving machine. Adjustment grooves 12 are symmetrically opened in the center of the top and bottom of the rollers 9. A groove 13 is opened at one end of the first chrome-plated stainless steel conical guide wheel 10. Adjustment blocks 15 are symmetrically installed at the top and bottom of the inner cavity of the first chrome-plated stainless steel conical guide wheel 10. The adjustment blocks 15 are movably connected in the inner cavity of the adjustment groove 12. A positioning bolt 14 is threadedly connected in the inner cavity of the groove 13. The other end of the positioning bolt 14 passes through the adjustment block 15 and fits against the inner wall of the adjustment groove 12.

[0019] Photoelectric sensors are installed on both the downward conveyor belt 16 and the upward conveyor belt 17 to monitor the conveying of the sheet lead frame. If a conveying failure occurs, the downward conveyor belt 16, the upward conveyor belt 17, the roller 9 and the conveyor belt 1 will be stopped. It can simultaneously handle the feeding and conveying of four rows of lead frames, solving the problem of low conveying speed. It also ensures that the lead frames are not damaged during conveying, enabling automated control, reducing manual intervention, improving production efficiency, and guaranteeing material distribution accuracy. By activating the servo motor 7, the bidirectional lead screw 6 can be rotated, allowing the bottom of the C-shaped rod 4 to connect threadedly with the bidirectional lead screw 6. This then drives the leveling component 3 to move. When the conveyor belt 1 conveys the lead frames, it can level them, ensuring their initial position is horizontal, thus improving the efficiency and accuracy of subsequent conveying. This is achieved through the installation of a first chrome-plated stainless steel conical guide wheel. The first chrome-plated stainless steel tapered guide wheel 10 and the second chrome-plated stainless steel tapered guide wheel 11 can process the four rows of lead frames. The first chrome-plated stainless steel tapered guide wheel 10 can divide the four rows of lead frames into three rows, namely one middle row and two rows at both ends. The second chrome-plated stainless steel tapered guide wheel 11 can divide the middle row of lead frames into two rows, so that they can be subsequently transported by the downward conveyor belt 16 and the upward conveyor belt 17. The adjustment groove 12 and the positioning bolt 14 can be used to adjust the spacing of the first chrome-plated stainless steel tapered guide wheel 10 according to the size of the lead frame. Based on this, it can be adapted to lead frames of various sizes for material distribution and conveying.

[0020] It should be noted that this utility model is a four-column receiving and conveying device for a sheet-like lead frame. In use, the spacing of the first chrome-plated stainless steel conical guide wheel 10 is adjusted according to the size of the lead frame. After loosening the positioning bolt 14, the first chrome-plated stainless steel conical guide wheel 10 is moved on the outer wall of the roller 9. After moving to the appropriate position, the positioning bolt 14 is tightened to fix the first chrome-plated stainless steel conical guide wheel 10. The four rows of lead frames to be conveyed are placed on top of the conveyor belt 1. The servo motor 7 is started, which drives the bidirectional lead screw 6 to rotate in the inner cavity of the movable groove 5, so that the C-shaped rod 4 can be threadedly connected to it. Based on this, the leveling component 3 is driven to fit against both sides of the lead frame. When the lead frame moves to the roller 9, it can be divided into two rows by the first chrome-plated stainless steel conical guide wheel 10 and the second chrome-plated stainless steel conical guide wheel 11, so that it can be conveyed to the double-row flip-plate receiving machine through the downward conveyor belt 16 and the upward conveyor belt 17.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A four-column receiving and conveying device for sheet-like lead frames, comprising a conveyor belt (1), rollers (9), a downward conveyor belt (16), and an upward conveyor belt (17), characterized in that: The top two ends of the conveyor belt (1) are symmetrically and movably connected with leveling components (3), and the outer wall of the roller (9) is equipped with a first chrome-plated stainless steel conical guide wheel (10) and a second chrome-plated stainless steel conical guide wheel (11).

2. The four-column receiving and conveying device for a sheet-like lead frame according to claim 1, characterized in that: The conveyor belt (1) is equipped with a first drive frame (2) on its outside. A movable groove (5) is provided in the center of the bottom of the first drive frame (2). A bidirectional lead screw (6) is rotatably connected in the inner cavity of the movable groove (5). A servo motor (7) is installed on the side of the bottom of the leveling component (3). The servo motor (7) is connected to the bidirectional lead screw (6) through a first rotating shaft.

3. A four-column receiving and conveying device for a sheet-like lead frame according to claim 2, characterized in that: Two leveling components (3) are symmetrically mounted with C-shaped rods (4) on opposite sides. The bottom of the C-shaped rods (4) is movably connected in the inner cavity of the movable groove (5) and threaded to the outer wall of the bidirectional lead screw (6).

4. A four-column receiving and conveying device for a sheet-like lead frame according to claim 3, characterized in that: The roller (9) is equipped with a second drive frame (8) at both ends. The inner cavity of the second drive frame (8) is equipped with a synchronous pulley for driving the roller (9). There are eight rollers (9). The second chrome-plated stainless steel conical guide wheel (11) is bi-conical. The second chrome-plated stainless steel conical guide wheel (11) is installed in the center of the outer wall of the right roller (9). The first chrome-plated stainless steel conical guide wheel (10) is single-conical. The first chrome-plated stainless steel conical guide wheel (10) is installed on the outer wall of the remaining rollers (9).

5. A four-column receiving and conveying device for a sheet-like lead frame according to claim 4, characterized in that: The first chrome-plated stainless steel conical guide wheel (10) is staggered and is used to divide the conveyed sheet wire frame. The other ends of the downward conveyor belt (16) and the upward conveyor belt (17) are both used to extend into the double-row flip-plate receiving machine.

6. A four-column receiving and conveying device for a sheet-like lead frame according to claim 1, characterized in that: The roller (9) has symmetrical adjustment grooves (12) at the center of its top and bottom. The first chrome-plated stainless steel conical guide wheel (10) has a groove (13) at one end. Adjustment blocks (15) are symmetrically installed at the top and bottom of the inner cavity of the first chrome-plated stainless steel conical guide wheel (10). The adjustment blocks (15) are movably connected in the inner cavity of the adjustment groove (12). The inner cavity of the groove (13) is threaded with a positioning bolt (14). The other end of the positioning bolt (14) passes through the adjustment block (15) and fits against the inner wall of the adjustment groove (12).

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