Lead frame transfer rack

Abstract

The utility model provides a lead frame transfer rack which comprises a U-shaped frame which comprises a transverse section and two vertical sections perpendicularly connected to the two ends of the transverse section, a first notch is formed in the middle of the upper portion of each vertical section, and a second notch is formed in the end, away from the transverse section, of the upper portion of each vertical section; the strip-shaped plates are vertically arranged on the inner side of the transverse section and used for dividing the interior of the U-shaped frame into a plurality of rectangular containing areas with the same size, the height of the strip-shaped plates is the same as that of the U-shaped frame, supporting pieces are arranged in the rectangular containing areas, third notches aligned with the first notches are formed in the tops of the strip-shaped plates, and fourth notches aligned with the second notches are formed in the tops of the strip-shaped plates; the first limiting strip is slidably arranged in the first notch and the third notch in the vertical direction; the second limiting strip is arranged in the second notch and the fourth notch in a sliding mode in the vertical direction. The lead frames conveyed on the conveying belt can be directly pushed into the rectangular containing areas in the U-shaped frame, and rapid feeding is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of chip manufacturing technology, and is particularly related to a lead frame transfer frame. Background Technology

[0002] In the chip packaging process, the chip needs to be attached to a leadframe. Subsequently, multiple leadframes need to be transferred to a transfer rack, which is then fixed onto the packaging equipment to complete the packaging. Existing leadframe transfer racks have multiple rectangular accommodating areas to hold multiple leadframes. Because these rectangular accommodating areas are separated, a robotic arm can only sequentially transfer multiple leadframes from the conveyor belt to these areas. Since the leadframes can only be placed into the rectangular accommodating areas from the top of the transfer rack, the transfer speed is slow, affecting production efficiency. Therefore, improvements are necessary. Utility Model Content

[0003] To address the aforementioned deficiencies in the prior art, this application provides a lead frame transfer frame that can directly push the lead frame conveyed on the conveyor belt into multiple rectangular receiving areas within a U-shaped frame, achieving rapid material loading.

[0004] To achieve the above objectives, the present invention employs the following technology:

[0005] A lead frame transfer holder, comprising:

[0006] The U-shaped frame includes a horizontal segment and two vertical segments that are vertically connected to both ends of the horizontal segment. A first notch is provided in the middle of the upper part of each vertical segment, and a second notch is provided at the end of each vertical segment away from the horizontal segment. The bottom height of the first notch and the second notch is the same as the height of the support piece.

[0007] Multiple strip plates are vertically arranged inside the horizontal section to divide the U-shaped frame into multiple rectangular accommodating areas of the same size. The height of the strip plates is the same as the height of the U-shaped frame. Each rectangular accommodating area is provided with a support piece. The height of the support piece is lower than the height of the strip plate. Each strip plate has a third notch aligned with the first notch and a fourth notch aligned with the second notch at its top.

[0008] The first limiting strip is slidably disposed in the first and third notches along the vertical direction;

[0009] The second limiting strip is slidably positioned within the second and fourth notches in the vertical direction.

[0010] Furthermore, the first and second gaps are respectively provided with a vertical first guide post and a second guide post, the first limiting strip is slidably connected to the first guide post, and the second limiting strip is slidably connected to the second guide post.

[0011] Furthermore, a first spring and a second spring are respectively fitted on the first guide post and the second guide post. The bottom of each of the two first springs is connected to the top of the first limiting strip, and the top of each of the two first springs is respectively located in the two first U-shaped seats. The bottom of each of the first U-shaped seats is connected to the vertical section. The bottom of each of the two second springs is connected to the top of the second limiting strip, and the top of each of the second springs is respectively located in the two second U-shaped seats. The bottom of each second U-shaped seat is connected to the vertical section. When the first limiting strip and the second limiting strip are pushed upward, both the first spring and the second spring are in a compressed state.

[0012] Furthermore, the bottom ends of both ends of the first limiting strip and the bottom ends of both ends of the second limiting strip are rounded. Limiting holes are provided on the vertical sections. A pair of transfer rods are vertically connected to the side of the horizontal section away from the vertical section.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The lead frame conveyed on the conveyor belt can be directly pushed into multiple rectangular receiving areas within the U-shaped frame, eliminating the need for robotic arms and improving production efficiency.

[0015] 2. Push the first and second limit bars upwards to complete the lead frame loading. Then, cancel the upward push of the first and second limit bars. The first and second springs will push the first and second limit bars back to their original positions. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of an embodiment of this application.

[0017] Figure 2 This is a three-dimensional view of the U-shaped frame and strip plate in the embodiments of this application.

[0018] Figure 3 for Figure 2 Enlarged view of section B in the middle.

[0019] Figure 4 for Figure 1 Enlarged view of section A in the middle.

[0020] Figure 5 This is a partial structure of a side view of an embodiment of this application.

[0021] Figure 6 This is a perspective view of the connection structure between the second limiting bar and the second spring in an embodiment of this application.

[0022] Reference numerals: U-shaped frame-1, strip plate-2, support piece-3, first limiting strip-4, second limiting strip-5, rounded corner-6, transfer rod-7, triangular block-8, horizontal segment-101, vertical segment-102, rectangular accommodating area-103, first guide post-104, second guide post-105, first spring-1041, second spring-1051, first U-shaped seat-1042, second U-shaped seat-1052, limiting hole-1023, first notch-1021, second notch-1022, third notch-201, fourth notch-202. Detailed Implementation

[0023] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0024] This application provides a lead frame transfer frame, such as... Figures 1-6 As shown, it includes a U-shaped frame 1, a strip plate 2, a first limiting strip 4, a second limiting strip 5, etc.

[0025] Specifically, the U-shaped frame 1 includes a horizontal segment 101 and two vertical segments 102 perpendicularly connected to both ends of the horizontal segment 101. A first notch 1021 is provided in the middle of the upper part of each vertical segment 102, and a second notch 1022 is provided at the upper end of each vertical segment 102 away from the horizontal segment 101. Multiple strip plates 2 are vertically arranged inside the horizontal segment 101, used to divide the U-shaped frame 1 into multiple rectangular accommodating areas 103 of the same size. The height of the strip plates 2 is the same as the height of the U-shaped frame 1. Each rectangular accommodating area 103 contains... The support plate 3 is lower than the height of the strip plate 2. The bottom heights of the first notch 1021 and the second notch 1022 are the same as the height of the support plate 3. The top of the strip plate 2 is provided with a third notch 201 aligned with the first notch 1021 and a fourth notch 202 aligned with the second notch 1022. The first limiting strip 4 is slidably disposed in the first notch 1021 and the third notch 201 in the vertical direction. The second limiting strip 5 is slidably disposed in the second notch 1022 and the fourth notch 202 in the vertical direction.

[0026] In actual use, the transfer frame is placed at the discharge end of the conveyor belt of the lead frame. Then, the first limiting bar 4 and the second limiting bar 5 are pushed upward. Next, the lead frames conveyed on the conveyor belt are pushed into the inner side of the multiple rectangular accommodating areas 103 in the U-shaped frame 1. Then, the first limiting bar 4 is lowered. Then, the lead frames conveyed on the conveyor belt are pushed into the outer side of the multiple rectangular accommodating areas in the U-shaped frame 1. Finally, the second limiting bar 5 is lowered. The rectangular accommodating areas 103 in the transfer frame can be filled with lead frames, and the two rows of lead frames are separated by the first limiting bar 4 to achieve the limiting of the lead frames.

[0027] For details, please refer to Figures 3-6 The first notch 1021 and the second notch 1022 are respectively provided with a vertical first guide post 104 and a second guide post 105. The first limiting strip 4 is slidably connected to the first guide post 104, and the second limiting strip 5 is slidably connected to the second guide post 105, which is used to improve the stability of the first limiting strip 4 and the second limiting strip 5 during the up and down movement. More specifically, a first spring 1041 and a second spring 1051 are respectively fitted on the first guide post 104 and the second guide post 105. The bottom of both first springs 1041 is connected to the top of the first limiting strip 4, and the top of both first springs 1041 is respectively located in the two first U-shaped seats 1042. The bottom of both first U-shaped seats 1042 is connected to the vertical section 102. The bottom of both second springs 1051 is connected to the top of the second limiting strip 5, and the top of both second springs 1051 is respectively located in the two second U-shaped seats 1052. The bottom of the second U-shaped seats 1052 is connected to the vertical section 102. When the first limiting strip 4 and the second limiting strip 5 are pushed upward, both the first spring 1041 and the second spring 1051 are in a compressed state. After pushing the first limiting bar 4 and the second limiting bar 5 upwards to complete the feeding of the lead frame, cancel the upward pushing of the first limiting bar 4 and the second limiting bar 5. The first spring 1041 and the second spring 1051 will push the first limiting bar 4 and the second limiting bar 5 to reset, so as to avoid the gap between the first limiting bar 4 and the second limiting bar 5 and the support plate 3 after they are lowered.

[0028] Preferred options, please refer to Figure 6 The bottom ends of both ends of the first limiting strip 4 and the bottom ends of both ends of the second limiting strip 5 are provided with rounded corners 6. After the rounded corners 6 are provided, the first limiting strip 4 and the second limiting strip 5 can be quickly pushed upward by pushing the triangular block 8 under them.

[0029] For details, please refer to Figure 1 Each vertical section 102 has a limiting hole 1023 for connecting with a limiting part on the sealing equipment to achieve alignment of the transfer frame. Specifically, a pair of transfer rods 7 are vertically connected to the side of the horizontal section 101 away from the vertical section 102, which facilitates lifting and transferring the transfer frame.

[0030] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A lead frame transfer frame, characterized in that, include: The U-shaped frame (1) includes a horizontal section (101) and two vertical sections (102) vertically connected to both ends of the horizontal section (101). A first notch (1021) is provided in the middle of the upper part of each vertical section (102), and a second notch (1022) is provided at the end of the vertical section (102) away from the horizontal section (101). Multiple strip plates (2) are vertically arranged inside the transverse section (101) to divide multiple rectangular accommodating areas (103) of the same size within the U-shaped frame (1). The height of the strip plates (2) is the same as the height of the U-shaped frame (1). Each rectangular accommodating area (103) is provided with a support piece (3). The height of the support piece (3) is lower than the height of the strip plate (2). The bottom height of the first notch (1021) and the second notch (1022) is the same as the height of the support piece (3). The top of each strip plate (2) is provided with a third notch (201) aligned with the first notch (1021) and a fourth notch (202) aligned with the second notch (1022). The first limiting bar (4) is slidably disposed in the first notch (1021) and the third notch (201) in the vertical direction; The second limiting bar (5) is slidably disposed in the second notch (1022) and the fourth notch (202) in the vertical direction.

2. The lead frame transfer frame according to claim 1, characterized in that, The first gap (1021) and the second gap (1022) are respectively provided with a vertical first guide post (104) and a second guide post (105). The first limiting strip (4) is slidably connected to the first guide post (104), and the second limiting strip (5) is slidably connected to the second guide post (105).

3. A lead frame transfer frame according to claim 2, characterized in that, A first spring (1041) and a second spring (1051) are respectively fitted on the first guide post (104) and the second guide post (105). The bottom of the two first springs (1041) is connected to the top of the first limiting strip (4). The top of the two first springs (1041) is respectively located in the two first U-shaped seats (1042). The bottom of the first U-shaped seats (1042) is connected to the vertical section (102). The bottom of the two second springs (1051) is connected to the top of the second limiting strip (5). The top of the second springs (1051) is respectively located in the two second U-shaped seats (1052). The bottom of the second U-shaped seats (1052) is connected to the vertical section (102). When the first limiting strip (4) and the second limiting strip (5) are pushed upward, the first spring (1041) and the second spring (1051) are both in a compressed state.

4. A lead frame transfer frame according to claim 3, characterized in that, The bottom of both ends of the first limiting strip (4) and the bottom of both ends of the second limiting strip (5) are provided with rounded corners (6).

5. A lead frame transfer frame according to claim 1, characterized in that, Limiting holes (1023) are provided on the vertical section (102).

6. A lead frame transfer frame according to claim 1, characterized in that, A pair of transfer rods (7) are vertically connected to the side of the transverse section (101) away from the vertical section (102).

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