Lead frame storage box

Abstract

A lead frame storage box comprises a bottom plate, a limiting vertical plate is formed on the bottom plate, the limiting vertical plate is provided with a pair of rotating lugs, the rotating lugs are provided with a lower placing plate, one end of the lower placing plate is bent upwards to form a short plate, the other end of the lower placing plate is bent upwards to form a long plate, and the long plate is longer than the short plate. The long plate and the short plate are each provided with a pair of vertical guide holes, a lower support is movably arranged between the long plate and the short plate, the two ends of the lower support are each provided with a pair of limiting screws, and the limiting screws are arranged in the vertical guide holes in a penetrating mode. The long plate and the short plate play a role in limiting the lead frame vertically placed in the long plate and the short plate so as to avoid the deformation of the internal structure of the lead frame, the movably arranged support can push the lead frame upwards so as to facilitate the ejection of the lead frame, and a part for placing the lead frame is rotatably arranged in the limiting vertical plate so as to facilitate the ejection of the lead frame. When the lead frame is placed and taken out, the long plate can be rotated to be in a horizontal posture, so that the lead frame can be placed and taken out conveniently.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor processing technology, and in particular to a lead frame storage box. Background Technology

[0002] Leadframes are devices used in semiconductor processing to provide external connections and secure chip mounting. Typically, leadframes are stamped from copper or aluminum strips, resulting in a rectangular sheet structure. During leadframe transfer, they are often stacked together. However, during this process, operator sweat can corrode the leadframes, and pressure is applied to prevent them from falling. This method introduces another problem: the leadframe structure is prone to deformation, thus affecting semiconductor processing. Utility Model Content

[0003] This utility model provides a lead frame storage box to overcome the shortcomings of the prior art, and solves the problems of easy contamination and internal structural deformation during the transfer of lead frames, thus having strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0005] A lead frame storage box includes a base plate, which is bent upwards to form a limiting vertical plate. A pair of rotating ears are rotatably provided at the lower end of the limiting vertical plate, and a lower plate is provided at the upper end of the rotating ears. A short plate is bent upwards at one end of the lower plate, and a long plate is bent upwards at the other end. The length of the long plate is greater than the length of the short plate. A pair of vertical guide holes are respectively provided on the long plate and the short plate. A lower support is movably provided between the long plate and the short plate. A pair of limiting screws are provided at both ends of the lower support, and the limiting screws pass through the vertical guide holes. The lead frame is placed vertically on the support. The long plate and the short plate limit the vertically placed lead frame to prevent deformation of the internal structure of the lead frame. The movable support can push the lead frame upwards, facilitating its ejection. The components for placing the lead frame are rotatably positioned within the limiting vertical plate. When placing and removing the lead frame, the long plate can be rotated to a horizontal position to facilitate placement and removal.

[0006] Furthermore, to facilitate the removal of the lead frame and ensure the effectiveness of the support for the lead frame when the support is in a high position, a movable outer plate is threaded to the outer ends of a pair of limiting screws on the long plate. The movable outer plate extends upward and is provided with an upper convex plate. A middle block is installed on the long plate by screws. Guide rods are threaded to both sides of the middle block. The outer ends of the guide rods are provided with end caps. Springs are sleeved on the guide rods. An inner pressure plate is sleeved on the guide rods on the same side. A locking block is formed at the lower end of the inner pressure plate. Locking grooves are opened on both sides of the upper convex plate.

[0007] Furthermore, when the upper convex plate moves upward, in order to enable the upper convex plate to push open the locking block, the upper end of the upper convex plate is machined into a V-shaped structure, the locking block is a right-angled trapezoidal structure, and the lower wall of the locking block is an inclined surface.

[0008] Furthermore, a grip bar is provided on the movable outer plate to facilitate holding during transfer.

[0009] Furthermore, in order to limit the position of the placed lead frame, limit side plates are fixed on both sides of the lower support with screws.

[0010] Furthermore, in order to protect the lead frame, a pair of locking posts are provided on the upper part of the outer wall of the limiting vertical plate. A concave locking plate is fitted on the locking post, and an L-shaped buckle is provided on the inner end of the concave locking plate. The L-shaped buckle is located between the limiting vertical plates, and the lower end of the vertical section of the L-shaped buckle acts on the upper end of the short plate.

[0011] The advantages of the above technical solution are:

[0012] This invention can protect the lead frame and avoid deformation of the internal structure of the lead frame during transfer. Attached Figure Description

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0014] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .

[0015] Figure 2 A three-dimensional structure of one embodiment is shown. Figure 2 .

[0016] Figure 3 A magnified view of point A is shown. Detailed Implementation

[0017] like Figures 1-3 As shown, a lead frame storage box includes a base plate 1, which is bent upward to form a limiting vertical plate 10.

[0018] The lower end of the limiting vertical plate 10 is provided with a pair of rotating ears 2. The upper end of the rotating ears 2 is provided with a placement lower plate 20. One end of the placement lower plate 20 is bent upward with a short plate 22, and the other end of the placement lower plate 20 is bent upward with a long plate 21. The length of the long plate 21 is greater than the length of the short plate 22. A pair of vertical guide holes 23 are respectively opened on the long plate 21 and the short plate 22. A lower support 25 is movably provided between the long plate 21 and the short plate 22. The two sides of the lower support 25 are fixed with limiting side plates 26 by screws. A pair of limiting screws 24 are respectively provided at both ends of the lower support 25. The limiting screws 24 pass through the vertical guide holes 23.

[0019] A pair of limiting screws 24 located on the long plate 21 have a movable outer plate 28 connected to their outer ends by threads. The movable outer plate 28 is provided with a holding rod 29. The movable outer plate 28 extends upward and is provided with an upper convex plate 30. The upper end of the upper convex plate 30 has a V-shaped structure. The locking block 35 has a right-angled trapezoidal structure and the lower wall of the locking block 35 is inclined. A middle block 31 is installed on the long plate 21 by screws. Guide rods 32 are connected to both sides of the middle block 31 by threads. The outer end of the guide rod 32 is provided with an end cap. A spring 34 is sleeved on the guide rod 32. An inner pressure plate 33 is sleeved on the guide rod 32 on the same side. A locking block 35 is formed at the lower end of the inner pressure plate 33. The upper convex plate 30 has locking grooves on both sides.

[0020] A pair of locking posts 11 are provided on the upper end of the outer wall of the limiting vertical plate 10. A concave locking plate 38 is fitted on the locking post 11. An L-shaped buckle 37 is provided on the inner end of the concave locking plate 38. The L-shaped buckle 37 is located between the limiting vertical plates 10, and the lower end of the vertical section of the L-shaped buckle 37 acts on the upper end of the short plate 22.

[0021] In application, the operator rotates the long plate 21 and the short plate 22 to make them horizontal. Then, the operator places the stacked lead frame on the long plate 21 and rotates the long plate 21 upward to make it vertical. At this time, the lead frame will also be vertical. Then, the operator places the L-shaped cover 37 between the limiting vertical plates 10 and inserts the locking post 11 into the concave locking plate 38. Then, the lead frame is transferred to the designated location.

[0022] When the lead frame is removed, the operator pulls the concave plate 38 outward to disengage the locking post 11 from the concave plate 38. Then, the L-shaped cover 37 is removed, and the outer plate 28 is moved upward by the gripping rod 29. When the outer plate 28 is moved, the V-shaped structure at its upper end acts on the inclined surface of the locking block 35, thereby opening the locking block 35 so that the locking block 35 is aligned with the locking slot. Then, the locking block 35 moves inward under the action of the spring 35 and locks the position of the upper convex plate 30. At this time, the upper end of the lead frame will extend out of the long plate 21, and then the lead frames are removed one by one.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A lead frame storage cassette characterized by, Includes a base plate (1), which is bent upward to form a limit vertical plate (10). The lower end of the limiting vertical plate (10) is provided with a pair of rotating ears (2), and the upper end of the rotating ears (2) is provided with a placement lower plate (20). One end of the placement lower plate (20) is bent upward with a short plate (22), and the other end of the placement lower plate (20) is bent upward with a long plate (21). The length of the long plate (21) is greater than the length of the short plate (22). A pair of vertical guide holes (23) are respectively opened on the long plate (21) and the short plate (22). A lower support (25) is movably provided between the long plate (21) and the short plate (22). A pair of limiting screws (24) are respectively provided at both ends of the lower support (25). The limiting screws (24) are inserted into the vertical guide holes (23).

2. The lead frame container of claim 1, wherein A pair of limiting screws (24) on the long plate (21) are connected to a movable outer plate (28) by threads on their outer ends. The movable outer plate (28) extends upward and is provided with an upper convex plate (30). A middle block (31) is installed on the long plate (21) by screws. Guide rods (32) are connected to both sides of the middle block (31) by threads. An end cap is provided on the outer end of the guide rod (32). A spring (34) is sleeved on the guide rod (32). An inner pressure plate (33) is sleeved on the guide rod (32) on the same side. A locking block (35) is formed at the lower end of the inner pressure plate (33). The upper convex plate (30) has slots on both sides.

3. The lead frame container of claim 2, wherein The upper end of the upper convex plate (30) has a V-shaped structure, the card block (35) has a right-angled trapezoidal structure, and the lower wall of the card block (35) is an inclined surface.

4. The lead frame storage box according to claim 2, characterized in that, A grip bar (29) is provided on the movable outer panel (28).

5. The lead frame storage box according to claim 1, characterized in that, Limiting side plates (26) are fixed to both sides of the lower support (25) by screws.

6. The lead frame storage box according to claim 1, characterized in that, A pair of locking posts (11) are provided on the upper end of the outer wall of the limiting vertical plate (10). A concave locking plate (38) is fitted on the locking post (11). An L-shaped buckle (37) is provided on the inner end of the concave locking plate (38). The L-shaped buckle (37) is located between the limiting vertical plates (10), and the lower end of the vertical section of the L-shaped buckle (37) acts on the upper end of the short plate (22).

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