Automatic blanking mechanism of LED die bonder

Abstract

The utility model discloses an automatic blanking mechanism of a light-emitting diode (LED) die bonder, which comprises a base, a lifting plate, a substrate storage box supported on the lifting plate and a driver capable of driving the lifting plate to move up and down relative to the base, supporting plate structures capable of supporting plate-shaped workpieces are arranged on the inner side wall of the left portion and the inner side wall of the right portion of the base plate storage box correspondingly, an abutting piece and a support located on the left side and / or the right side of the abutting piece are arranged on the lifting plate, and a first elastic piece is arranged on the support; the first elastic piece is provided with a corner part capable of tightly pressing the substrate storage box located between the abutting piece and the first elastic piece, and the distance between the upper edge of the first elastic piece and the abutting piece is larger than the left-right width of the substrate storage box. When the substrate storage box is used, the filled substrate storage box is pulled upwards, the substrate storage box can be pulled upwards, an empty substrate storage box is pushed downwards from the upper direction of the lifting plate, the substrate storage box can be placed in the space between the support and the abutting piece, and convenience and rapidness are achieved.

Description

Technical Field

[0001] This utility model relates to the field of LED light strip production technology, and in particular to an automatic feeding mechanism for an LED die bonder. Background Technology

[0002] LED die bonders play a crucial role in the production of LED light strips. Die bonding is the process of attaching semiconductor chips to a packaging substrate or lead frame. Die bonders not only accelerate the LED light strip production process but also play a key role in improving product quality, reducing production costs, and promoting the development of LED technology.

[0003] Existing LED die bonding machines all use a substrate storage box to hold the die-bonded substrates, which is supported by a lifting platform. The front and rear ends of the substrate storage box are open, and multiple straight slots for supporting the substrates are arranged at intervals along the upper and lower sides of its left and right side plates. The die-bonded substrates enter the substrate storage box under the drive of the conveyor line, so that the left and right edges of the substrates are supported in the corresponding straight slots. Then the lifting platform moves the substrate storage box up or down a certain distance, so that another pair of straight slots can be moved to a position where a substrate can be loaded. After a substrate is loaded into this pair of straight slots, the lifting platform moves the substrate storage box up or down a certain distance, and then uses the next pair of straight slots to load substrates, and so on. When the substrate storage box is full, it needs to be removed and replaced with an empty substrate storage box.

[0004] Existing LED die bonding machines generally have the following problems: In order to fix the substrate storage box to the lifting base, some locking devices are required to lock the substrate storage box to the lifting base, which makes it inconvenient to disassemble and assemble the substrate storage box. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide an automatic feeding mechanism for LED die bonders that facilitates the disassembly and assembly of substrate storage boxes.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] An automatic feeding mechanism for an LED die bonding machine includes a base, a lifting plate, a substrate storage box supported on the lifting plate, and a driver capable of driving the lifting plate to move up and down relative to the base. The front end of the substrate storage box has a workpiece loading inlet. The inner sidewalls of the left and right sides of the substrate storage box are provided with tray structures capable of supporting plate-shaped workpieces. The lifting plate is provided with an abutment and a bracket located to the left and / or right of the abutment. The bracket is provided with a first spring piece. The first spring piece has a corner portion capable of pressing the substrate storage box located between the abutment and the first spring piece. The distance between the upper edge of the first spring piece and the abutment is greater than the left and right width of the substrate storage box.

[0008] In a preferred embodiment of this utility model, the rear end of the substrate storage box has an opening, and a limiting rod located behind the substrate storage box is provided on the lifting plate.

[0009] In a preferred embodiment of this utility model, the lifting plate is provided with an adjustable mounting structure, the bracket is mounted on the adjustable mounting structure so that the distance between the bracket and the abutment is adjustable, and the lifting plate is also provided with a first fastener capable of locking the bracket.

[0010] In a preferred embodiment of this utility model, the adjustable mounting structure includes a plurality of screw holes disposed on the lifting plate, the screw holes being arranged in several rows in the left-right direction, the bracket being provided with a through hole, and the first fastener being a screw or nut capable of passing through the through hole and engaging with the screw hole.

[0011] In a preferred embodiment of this utility model, the lower end of the first spring is fixed to the bracket, and the bracket is further provided with a second spring located below the first spring, the first spring and the second spring being mirror-symmetrical.

[0012] In a preferred embodiment of this utility model, the bracket is provided with a cylindrical arc surface, the axis of which extends along the front-to-back direction. The lower part of the first spring piece has an arc-shaped plate that is in contact with the cylindrical arc surface. The cylindrical arc surface is provided with a fastening hole. The arc plate is provided with an elongated hole arranged along the vertical direction and aligned with the fastening hole. The arc plate and the bracket are locked together by a second fastener, which passes through the elongated hole and engages with the fastening hole.

[0013] In a preferred embodiment of this utility model, a vertical guide is provided on the base, a slide is provided on the lower surface of the lifting plate and slides that slide with the guide, and the driver is a motor mounted on the base, the motor being connected to the slide via a lead screw pair.

[0014] The beneficial effects of this utility model are: In this mechanism, by using a certain force to pull the full substrate storage box upward, the substrate storage box can be pulled upward and an empty substrate storage box can be pushed downward from above the lifting plate to put the substrate storage box into the space between the bracket and the abutment. This is convenient and quick, and it is also convenient to use a robotic arm to automatically disassemble and assemble the substrate storage box. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is a perspective view of the main parts of this utility model;

[0017] Figure 3 This is the front view of the substrate storage box;

[0018] Figure 4 This is a schematic diagram of the connection structure between the first spring, the second spring, and the support;

[0019] Figure 5 yes Figure 4 Enlarged view of section A;

[0020] Figure 6 This is an exploded view of the connection structure between the first spring, the second spring, and the support. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly. Furthermore, descriptions involving "preferred," "second-preferred," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "preferred" or "second-preferred" may explicitly or implicitly include at least one of those features.

[0023] Reference Figures 1 to 6This utility model proposes an automatic feeding mechanism for an LED die bonding machine, including a base 1, a lifting plate 2, a substrate storage box 3 supported on the lifting plate 2, and a driver 4 capable of driving the lifting plate 2 to move up and down relative to the base 1. The front end of the substrate storage box 3 has a workpiece loading inlet. The inner sidewalls of the left and right sides of the substrate storage box 3 are provided with a support plate structure capable of supporting a plate-shaped workpiece 5. The lifting plate 2 is provided with an abutment 21 and a bracket 7 located on the left and / or right side of the abutment 21. The bracket 7 is provided with a first spring 81. The first spring 81 has a corner portion 811 capable of pressing the substrate storage box 3 located between the abutment 21 and the first spring 81. The distance between the upper edge of the first spring 81 and the abutment 21 is greater than the left and right width of the substrate storage box 3.

[0024] Preferably, the lower end of the first spring piece 81 is fixed to the bracket 7, and the bracket 7 is also provided with a second spring piece 82 located below the first spring piece 81. The first spring piece 81 and the second spring piece 82 are mirror-symmetrical. The mirror-symmetrical plane of the two is a horizontal plane. The abutment 21 is a vertical plate, and there are two brackets 7, which are located on the left and right sides of the vertical plate respectively. Each vertical plate is provided with a first spring piece 81 and a second spring piece 82. The tray structure is a horizontal straight groove 301 set on the inner side of the substrate storage box 3. The die-bonded substrate enters the substrate storage box 3 under the drive of the conveyor line, so that the left and right edges of the substrate are supported in the corresponding straight grooves 301 respectively. Then the lifting seat carries the substrate storage box 3 up or down a certain distance, so that another pair of straight grooves moves to a position where the substrate can be loaded. After the substrate is loaded into this pair of straight grooves, the lifting seat carries the substrate storage box 3 up or down a certain distance, and continues to use the next pair of straight grooves 301 to load the substrate... When the substrate storage box 3 Once full, the substrate storage box 3 can be pulled upwards to overcome its weight and the frictional force of the first spring piece 81 and the second spring piece 82 on the substrate storage box 3. Then, since the distance between the upper edge of the spring piece and the abutment 21 is greater than the left and right width of the substrate storage box 3, an empty substrate storage box 3 can be pushed downwards from above the lifting plate 2 to insert the substrate storage box 3 into the space between the bracket 7 and the abutment 21. This is convenient, quick, and allows for automatic assembly and disassembly of the substrate storage box 3 using a robotic arm.

[0025] Furthermore, the lifting plate 2 is provided with an adjustable mounting structure, and the bracket 7 is installed on the adjustable mounting structure so that the distance between the bracket 7 and the abutment 21 is adjustable. The lifting plate 2 is also provided with a first fastener 61 that can lock the bracket 7.

[0026] In a preferred embodiment of this utility model, the adjustable mounting structure includes multiple screw holes 23 disposed on the lifting plate 2, arranged in several rows in the left-right direction. The bracket 7 is provided with through holes 71. The first fastener 61 is a screw or nut that can pass through the through hole 71 and engage with the screw holes 23. After loosening the first fastener 61, the bracket 7 can be moved left or right to adjust the distance between the bracket 7 and the abutment 21, thereby accommodating the width of different models of substrate storage boxes 3. After adjustment, the first fastener 61 is locked into the corresponding screw hole 23.

[0027] In some embodiments of this utility model, the adjustable mounting structure described above can also adopt other structural forms, such as using a long strip hole 813 to replace a row of screw holes 23. At the same time, in order to adapt to the long strip hole 813, the first fastener 61 described above adopts a combination of bolts and nuts.

[0028] Furthermore, the bracket 7 is provided with a cylindrical arc surface 72, the axis of which extends along the front-to-back direction. The lower part of the first spring piece 81 has an arc-shaped plate 812 that abuts against the cylindrical arc surface 72. The cylindrical arc surface 72 is provided with a fastening hole 73, and the arc plate 812 is provided with an elongated hole 813 arranged along the vertical direction and aligned with the fastening hole 73. The arc plate 812 and the bracket 7 are locked together by a second fastener 62, which passes through the elongated hole 813 and engages with the fastening hole 73. In this design, the tightness of the first spring piece 81 clamping the substrate storage box 3 can be adjusted without changing the position of the bracket 7. The specific adjustment method is as follows: the second fastener 62 is a screw, and the fastening hole 73 is a corresponding screw hole 23. When it is necessary to adjust the tightness of the first spring 81, the second fastener 62 can be loosened, and then the first spring 81 can be pushed along the cylindrical arc surface 72 to rotate the first spring 81 by a certain angle. When the first spring 81 is adjusted to the appropriate position, the second fastener 62 can be tightened.

[0029] To facilitate adjustment of the tightness of the second spring 82, the second spring 82 can also adopt the same mounting structure as the first spring 81.

[0030] Reference Figure 1 and Figure 2 The base 1 is provided with a vertical guide 15, and the lower surface of the lifting plate 2 is provided with a slide 9 that slides with the guide 15. The driver 4 is a motor mounted on the base 1, and the motor is connected to the slide 9 through a lead screw pair. The rear end of the substrate storage box 3 has an opening, and the lifting plate 2 is provided with a limiting rod 28 located behind the substrate storage box 3.

[0031] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An automatic feeding mechanism for an LED die bonder, characterized in that, The system includes a base (1), a lifting plate (2), a substrate storage box (3) supported on the lifting plate (2), and a driver (4) capable of driving the lifting plate (2) to move up and down relative to the base (1). The front end of the substrate storage box (3) has a workpiece loading inlet. The inner sidewalls of the left and right sides of the substrate storage box (3) are provided with a support plate structure capable of supporting a plate-shaped workpiece (5). The lifting plate (2) is provided with an abutment (21) and a bracket (7) located on the left and / or right side of the abutment (21). The bracket (7) is provided with a first spring (81). The first spring (81) has a corner portion (811) capable of pressing the substrate storage box (3) located between the abutment (21) and the first spring (81). The distance between the upper edge of the first spring (81) and the abutment (21) is greater than the left and right width of the substrate storage box (3).

2. The automatic feeding mechanism of an LED die bonder according to claim 1, characterized in that, The substrate storage box (3) has an open rear end, and the lifting plate (2) is provided with a limiting rod (28) located behind the substrate storage box (3).

3. The automatic feeding mechanism for an LED die bonder according to claim 1, characterized in that, The lifting plate (2) is provided with an adjustable mounting structure, and the bracket (7) is installed on the adjustable mounting structure so that the distance between the bracket (7) and the abutment (21) is adjustable. The lifting plate (2) is also provided with a first fastener (61) that can lock the bracket (7).

4. The automatic feeding mechanism of an LED die bonder according to claim 3, characterized in that, The adjustable mounting structure includes multiple screw holes (23) on the lifting plate (2), the screw holes (23) are arranged in several rows in the left and right direction, the bracket (7) is provided with a through hole (71), and the first fastener (61) is a screw or nut that can pass through the through hole (71) and engage with the screw hole (23).

5. The automatic feeding mechanism of an LED die bonder according to claim 1 or 3, characterized in that, The lower end of the first spring piece (81) is fixed to the bracket (7), and the bracket (7) is also provided with a second spring piece (82) located below the first spring piece (81). The first spring piece (81) and the second spring piece (82) are mirror symmetrical.

6. The automatic feeding mechanism of an LED die bonder according to claim 1 or 3, characterized in that, The bracket (7) is provided with a cylindrical arc surface (72) with the axis of the cylindrical arc surface (72) extending along the front-back direction. The lower part of the first spring piece (81) has an arc plate (812) that is in contact with the cylindrical arc surface (72). The cylindrical arc surface (72) is provided with a fastening hole (73). The arc plate (812) is provided with an elongated hole (813) arranged along the up-down direction and aligned with the fastening hole (73). The arc plate (812) and the bracket (7) are locked together by a second fastener (62). The second fastener (62) passes through the elongated hole (813) and cooperates with the fastening hole (73).

7. The automatic feeding mechanism for an LED die bonder according to claim 1, characterized in that, The base (1) is provided with a vertical guide (15), and the lower surface of the lifting plate (2) is provided with a slide (9) that slides with the guide (15). The driver (4) is a motor installed on the base (1), and the motor is connected to the slide (9) through a lead screw pair.

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