CN212424971U

CN212424971U - Bonding wire winding frame for packaging

Info

Publication number: CN212424971U
Application number: CN202020900519.6U
Authority: CN
Inventors: 陈磊
Original assignee: Chenxin Electronic Materials Shanghai Co ltd
Current assignee: Chenxin Electronic Materials Shanghai Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-01-29
Anticipated expiration: 2030-05-25

Abstract

The utility model belongs to the bonding wire processing field, concretely relates to packaging bonding wire winding frame, which comprises a winding table, wherein a motor is arranged on the winding table, the output end of the motor is connected with a speed reducer, the output end of the speed reducer is connected with a shaft coupling, one side of the shaft coupling is provided with an A shaft bracket, and the output end of the shaft coupling is connected with an A rotating shaft which runs through the A shaft bracket; the winding disc is placed in a clamping interval between the disc frame A and the disc frame B, and the limiting bolt is screwed into the connection position of the winding disc and the disc frame A and the disc frame B to realize the locking and installation of the winding disc, so that the winding disc can be prevented from deviating along with the rotation of the rotating shaft when the bonding wire is wound, and the winding stability is kept; the lead frame does the at the uniform velocity along with electronic slide and controls the displacement on the guide rail, and in the displacement process about the lead frame, the even winding of bonding wire is on the spool of winding the reel, keeps winding regularity everywhere around the spool on the reel, makes the even winding of bonding wire, promotes around rolling up the quality.

Description

Bonding wire winding frame for packaging

Technical Field

The utility model relates to a bonding wire processing field, concretely relates to encapsulation is with bonding wire winding frame.

Background

The bonding wire is one of four key basic materials in the field of microelectronic packaging, is an inner lead for realizing electrical interconnection between a chip and a lead frame, more than 80% of microelectronic components are interconnected by adopting a lead bonding technology, and the quality of the bonding wire directly determines the performance of an IC packaging product.

The prior art has the following problems:

1. the winding disc is directly sleeved on the outer wall of the rotating shaft for installation, the limitation on the winding disc is lacked, and the winding disc can displace in the rotating process, so that the winding deviation of the bonding wire is caused, and the winding quality is influenced;

2. when the bonding wire is wound, the structure of the lead device is complex, and the displacement of the lead device cannot be stably carried out, so that the bonding wire is unevenly wound on a reel of a winding disc, and the storage of the bonding wire is influenced.

In order to solve the above problems, the present application provides a bonding wire winding frame for packaging.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a bonding wire is around rolling up frame for encapsulation has, and the bonding wire is guaranteed around rolling up the spacing installation of reel to stabilize and lead wire device simple structure controls the characteristics of displacement at the uniform velocity.

(II) technical scheme

In order to solve the technical problem, the utility model provides a bonding wire winding frame for packaging, which comprises a winding table, wherein a motor is arranged on the winding table, the output end of the motor is connected with a speed reducer, the output end of the speed reducer is connected with a shaft coupling, one side of the shaft coupling is provided with an A shaft bracket, the output end of the shaft coupling is connected with an A rotating shaft which runs through the A shaft bracket, and the other end of the A rotating shaft is provided with an A plate frame;

a B-axis frame is arranged on one side of the A-axis frame, a B rotating shaft is sleeved in the B-axis frame, a B-axis frame is fixed on the B rotating shaft, and a winding disc for winding bonding wires is clamped between the B-axis frame and the A-axis frame;

the wire leading device is arranged behind the winding table and comprises a guide rail, an electric sliding seat and a wire leading frame, the top of the guide rail is connected with the electric sliding seat in a sliding mode, and the wire leading frame for drawing bonding wires is fixed on the electric sliding seat.

Preferably, the rotating shaft A and the rotating shaft B are positioned on the same axis, and the specification and the structure of the plate rack A and the plate rack B are the same.

Preferably, a limiting bolt penetrates through the joint of the A tray frame and the winding reel, and correspondingly, a limiting bolt with the same structure penetrates through the joint of the B tray frame and the winding reel.

Preferably, the whole body formed by connecting the rotating shaft A, the winding reel and the rotating shaft B is respectively and rotatably connected with the shaft bracket A and the shaft bracket B.

Preferably, a bearing is installed at the joint of the shaft bracket A and the rotating shaft A, and a bearing is installed at the joint of the shaft bracket B and the rotating shaft B.

Preferably, four lead rods are mounted on the upper surface of the lead frame, and the bonding wire is sequentially pulled to penetrate through the four lead rods.

The above technical scheme of the utility model has following profitable technological effect:

1. the winding disc is placed in a clamping interval between the A disc frame and the B disc frame, the limiting bolt is screwed into the connection position of the winding disc and the A disc frame and the B disc frame, the winding disc is locked and installed, the winding disc can be prevented from offsetting along with rotation of the rotating shaft when the bonding wire is wound, and the winding stability is kept.

2. The lead frame does the at the uniform velocity along with electronic slide and controls the displacement on the guide rail, and in the displacement process about the lead frame, the even winding of bonding wire is on the spool of winding the reel, keeps winding regularity everywhere around the spool on the reel, makes the even winding of bonding wire, promotes around rolling up the quality.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the A-axle bracket and the B-axle bracket of the present invention;

FIG. 3 is a schematic view of the structure of the A plate rack and the winding plate of the present invention;

fig. 4 is a schematic view of the sliding of the lead frame of the present invention.

Reference numerals:

1. a winding table; 2. a motor; 3. a speed reducer; 4. a coupling; 5. a, a shaft bracket; 51. a, a rotating shaft; 52. a, a plate frame; 53. a limit bolt; 6. b, a shaft bracket; 61. b, a rotating shaft; 62. b, a tray frame; 7. winding the reel; 8. a wire-guiding device; 81. a guide rail; 82. an electric slide; 83. a lead frame.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 4 is a schematic view of the lead frame sliding of the present invention;

as shown in fig. 1-4, the utility model provides a bonding wire winding frame for packaging, including winding platform 1, install motor 2 on winding platform 1, the output of motor 2 is connected with speed reducer 3, the output of speed reducer 3 is connected with shaft coupling 4, one side of shaft coupling 4 is provided with a pedestal 5, the output of shaft coupling 4 is connected with a pivot 51 that runs through pedestal 5, the other end of pivot 51 is installed with a plate rail 52;

a B-axis frame 6 is arranged on one side of the A-axis frame 5, a B rotating shaft 61 is sleeved in the B-axis frame 6, a B-axis frame 62 is fixed on the B rotating shaft 61, and a winding disc 7 for winding bonding wires is clamped between the B-axis frame 62 and the A-axis frame 52.

It should be noted that: the A rotating shaft 51 and the B rotating shaft 61 are positioned at the same axis, the specification and the structure of the A disc frame 52 are the same as those of the B disc frame 62, and the whole body formed by connecting the A rotating shaft 51, the winding disc 7 and the B rotating shaft 61 is respectively in rotating connection with the A shaft frame 5 and the B shaft frame 6; the A rotating shaft 51 is matched with the A shaft frame 5 to be a driving rotating mechanism, the B rotating shaft 61 is matched with the B shaft frame 6 to be a driven rotating mechanism, the A rotating shaft 51 rotates on the A shaft frame 5 to drive the winding disc 7 connected on the A disc frame 52 to rotate, and then the B rotating shaft 61 on the B disc frame 62 connected with the winding disc 7 is driven to rotate on the B shaft frame 6, so that stable rotation of the A rotating shaft 51, the winding disc 7 and the B rotating shaft 61 is realized, and stable winding of the bonding wire is carried out.

In order to enable the rotating shaft A51 and the rotating shaft B61 to stably rotate, a bearing is installed at the joint of the shaft bracket A5 and the rotating shaft A51, and a bearing is installed at the joint of the shaft bracket B6 and the rotating shaft B61; the rotating shaft A51 and the rotating shaft B61 penetrate through the inner wall of the bearing, and the bearing is used for assisting in rotation and keeping the rotating shaft A51 and the rotating shaft B61 to rotate stably.

In this embodiment, a position-limiting bolt 53 penetrates through a connection portion between the a plate frame 52 and the winding plate 7, correspondingly, a position-limiting bolt 53 having the same structure penetrates through a connection portion between the B plate frame 62 and the winding plate 7, the winding plate 7 is placed in a clamping area between the a plate frame 52 and the B plate frame 62, and the position-limiting bolt 53 is screwed into the connection portion between the winding plate 7 and the a plate frame 52 and the B plate frame 62, so that the winding plate 7 is locked and mounted, the winding plate can be prevented from shifting along with rotation of the rotating shaft when the bonding wire is wound, and the winding stability is maintained.

As shown in fig. 1, a lead device 8 is disposed behind the winding table 1, the lead device 8 includes a guide rail 81, an electric slide 82 and a lead frame 83, the electric slide 82 is slidably connected to the top of the guide rail 81, and the lead frame 83 for pulling the bonding wire is fixed on the electric slide 82.

In this embodiment, the lead frame 83 moves left and right on the guide rail 81 at a constant speed along with the electric slide 82, and during the left and right movement of the lead frame 83, the bonding wire is uniformly wound on the reel of the reel 7, so as to maintain the uniformity of winding around the reel 7, so that the bonding wire is uniformly wound, and the winding quality is improved.

In this embodiment, in order to keep the bonding wire in a tight state, further, four lead rods are mounted on the upper surface of the lead frame 83, and the bonding wire is sequentially pulled through the four lead rods, so that the tight state of the bonding wire is kept and the winding of the bonding wire is facilitated.

The utility model discloses a theory of operation and use flow: the winding reel 7 is arranged between the A disc frame 52 and the B disc frame 62, the motor 2 drives the coupler 4 connected with the speed reducer 3 to work, the rotating shaft A51 is driven to rotate, the winding reel 7 is driven to rotate at a constant speed, the lead frame 83 moves left and right on the guide rail 81 at a constant speed along with the electric sliding seat 82, and the bonding wire is uniformly wound on a reel of the winding reel 7 in the left and right moving process of the lead frame 83.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The bonding wire winding frame for packaging is characterized by comprising a winding table (1), wherein a motor (2) is mounted on the winding table (1), the output end of the motor (2) is connected with a speed reducer (3), the output end of the speed reducer (3) is connected with a coupler (4), an A shaft frame (5) is arranged on one side of the coupler (4), the output end of the coupler (4) is connected with an A rotating shaft (51) penetrating through the A shaft frame (5), and an A plate frame (52) is mounted at the other end of the A rotating shaft (51);

a B-axis frame (6) is arranged on one side of the A-axis frame (5), a B rotating shaft (61) is sleeved in the B-axis frame (6), a B disc frame (62) is fixed on the B rotating shaft (61), and a winding reel (7) for winding bonding wires is clamped between the B disc frame (62) and the A disc frame (52);

the wire guiding device (8) is arranged behind the winding table (1), the wire guiding device (8) comprises a guide rail (81), an electric sliding seat (82) and a wire guiding frame (83), the top of the guide rail (81) is connected with the electric sliding seat (82) in a sliding mode, and the wire guiding frame (83) for drawing bonding wires is fixed on the electric sliding seat (82).

2. The bonding wire reel for packaging as claimed in claim 1, wherein the A spindle (51) and the B spindle (61) are coaxial, and the A tray (52) and the B tray (62) have the same specification and structure.

3. The bonding wire reel for encapsulation according to claim 1, wherein a connection between the A plate frame (52) and the reel (7) is penetrated with a limit bolt (53), and correspondingly, a connection between the B plate frame (62) and the reel (7) is penetrated with a limit bolt (53) of the same structure.

4. The bonding wire reel for packaging according to claim 1, wherein the whole of the connection of the A spindle (51), the reel (7) and the B spindle (61) is rotatably connected with the A spindle frame (5) and the B spindle frame (6), respectively.

5. The bonding wire winding frame for packaging as claimed in claim 1, wherein a bearing is mounted at the joint of the A shaft frame (5) and the A rotating shaft (51), and a bearing is mounted at the joint of the B shaft frame (6) and the B rotating shaft (61).

6. A wire reel for packaging according to claim 1, wherein the upper surface of the lead frame (83) is provided with four lead bars through which the wire is drawn in turn.