Automatic gold bonding wire cutting device

Abstract

The utility model relates to a cutting device, belongs to the technical field of gold bonding wires, and particularly relates to an automatic gold bonding wire cutting device. The mounting frame is fixedly mounted on the top end wall surface of the base, an electric telescopic rod is fixedly mounted on the top end wall surface in the mounting frame, a cutter is arranged on the bottom end wall surface of the electric telescopic rod, a connecting plate is fixedly mounted on the side wall of the electric telescopic rod, and four springs are fixedly mounted on the bottom end wall surface of the connecting plate; wherein a pressing plate is arranged below every two springs, a workbench is fixedly installed on the wall face of the top end of the base, and a notch groove is formed in the wall face of the top of the workbench; when the cutter moves towards the direction of the gold bonding wire, the pressing plate firstly makes contact with the gold bonding wire and fixes the gold bonding wire, then the cutter continues to move downwards to cut off the gold bonding wire, when the cutter moves upwards subsequently, the pressing plate can continuously act on the gold bonding wire until next winding, and pollution caused by the fact that the gold bonding wire makes contact with other objects is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of gold bonding wires, in particular to an automatic gold bonding wire cutting device. Background Art

[0002] Gold bonding wire, also known as ball bonding gold wire, is a gold wire used to connect chip electrodes to lead frames during integrated circuit packaging. Its main purpose is to bond the electrodes on the integrated circuit silicon wafer to the lead frame to ensure the stability and reliability of the circuit. The gold bonding wire has good flexibility while maintaining a certain hardness and strength.

[0003] The Chinese patent publication number is CN220717632U, which discloses a rapid cutting device for bonding gold wires, including a bottom plate, an upper side of the bottom plate is provided with an installation groove at one end, and a fixing plate is fixed at the upper side of the bottom plate at the other end; the patent can timely sense the thickness of the bonding gold wire wound on the I-shaped wheel through the sensing contact block, and then timely control the extension of the telescopic end of the electric telescopic rod to drive the cutting knife to cut the bonding gold wire, avoiding the problem of poor accuracy of manual observation, and adjusting the height of the sensing contact block by adjusting the height of the slider, so as to facilitate sensing according to different winding thicknesses, and the operation is simple; it solves the problem that the existing traditional device cannot control the number of turns of the I-shaped wheel winding thickness according to needs, thereby controlling the cutting, so that the bonding gold wire is divided and cut according to the required winding thickness, and the dehumidification efficiency in the production process is improved, and the problems caused by manual operation are avoided, ensuring the output and quality of the product.

[0004] The above technical solution controls the telescopic end of the electric telescopic rod to extend, thereby driving the cutting knife to cut the bonding gold wire. However, in the above existing technical solution, after the bonding gold wire is cut, there is no tension on the bonding gold wire, and the end will slide directly under the action of gravity. The end of the bonding gold wire is easy to contact the bottom plate, so that the surface of the bonding gold wire is contaminated, affecting the quality of the gold wire and causing waste. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes an automatic cutting device for bonding gold wire. When the cutter moves toward the bonding gold wire, the pressure plate will first contact the bonding gold wire to fix it. Then the cutter continues to move downward to cut the bonding gold wire. When the subsequent cutter moves upward, the pressure plate can continue to act on the bonding gold wire until the next winding, thereby preventing the bonding gold wire from contacting other objects and causing contamination.

[0006] The technical solution to achieve the purpose of the utility model is: an automatic bonding wire cutting device, comprising a base, a mounting plate 2 is fixedly installed on the top wall of the base, a motor 1 is fixedly installed on the side wall of the mounting plate 2, a wire feeding roller is fixedly installed on the output end of the motor 1, and also includes;

[0007] The mounting frame is fixedly mounted on the top wall of the base, an electric telescopic rod is fixedly mounted on the inner top wall of the mounting frame, a cutter is arranged on the bottom wall of the electric telescopic rod, a connecting plate is fixedly mounted on the side wall of the electric telescopic rod, four springs are fixedly mounted on the bottom wall of the connecting plate, a pressure plate is arranged under every two springs, the pressure plate is connected to the connecting plate through the spring, a workbench is fixedly mounted on the top wall of the base, a cutting groove is arranged on the top wall of the workbench, and the cutting groove corresponds to the cutter.

[0008] In some embodiments, a mounting plate 1 is fixedly installed on the top wall of the base, a motor 2 is fixedly installed on the side wall of the mounting plate 1, a take-up roller is fixedly installed on the output end of the motor 2, a fixing plate is fixedly installed on the side wall of the take-up roller, an I-shaped wheel is provided on the side wall of the take-up roller, a connecting rod is fixedly installed on the side wall of the fixing plate close to the mounting plate 1, a counter is fixedly installed on the side wall of the mounting plate 1 close to the connecting rod, and the counter corresponds to the connecting rod.

[0009] In some embodiments, an electric push rod is fixedly mounted on the side wall of the mounting plate 1, and a limiting ring is fixedly mounted on one end of the electric push rod away from the mounting plate 1.

[0010] In some embodiments, two guide rods are fixedly mounted on the top wall of the pressure plate. The guide rods are located inside the spring and penetrate the connecting plate and extend to the top of the connecting plate.

[0011] In some embodiments, a limit plate is fixedly mounted on the top wall of the guide rod, and the limit plate is located above the connecting plate.

[0012] In some embodiments, a rubber pad is fixedly mounted on the bottom wall of the pressure plate.

[0013] Compared with the prior art, the utility model has the following significant advantages:

[0014] First: when the electric telescopic rod is started to move toward the bonding gold wire, the bottom wall of the pressure plate will first contact the bonding gold wire, and then the electric telescopic rod will continue to drive the cutter to move downward, so that the cutter contacts the bonding gold wire and cuts the bonding gold wire. At this time, the pressure plate will be affected by the force of the workbench and move upward relative to the cutter. The spring acts on the pressure plate, so that the pressure plate is tightly pressed on the bonding gold wire to prevent the bonding gold wire from shaking, and after the subsequent cutter cuts the bonding gold wire, the bonding gold wire is pressed by the pressure plate and will not contact other objects. When the subsequent cutter moves upward, the pressure plate can continue to act on the bonding gold wire until the next winding, to prevent the bonding gold wire from contacting other objects and causing contamination.

[0015] Secondly: when the utility model is winding and reeling the bonding gold wire, motor two is started, and motor two drives the take-up roller to rotate, and the rotation of the take-up roller drives the I-shaped wheel to wind the bonding gold wire, and at the same time the connecting rod rotates so that the connecting rod contacts the counter. When the connecting rod contacts the counter, the counter counts the number of rotations. When the counted number of rotations reaches the set number of rotations, motor two stops rotating. At this time, the electric telescopic rod is started to cut the bonding gold wire with a cutter, thereby improving the accuracy of the length of the bonding gold wire wound by the I-shaped wheel and the convenience of cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the cutting component of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the utility model.

[0020] Description of reference numerals:

[0021] 1. Base; 11. Mounting plate 1; 12. Mounting frame; 13. Mounting plate 2; 14. Workbench; 2. Electric telescopic rod; 21. Cutter; 3. Press plate; 31. Spring; 32. Guide rod; 321. Limit plate; 33. Connecting plate; 4. Motor 1; 41. Wire feeding roller; 5. Motor 2; 51. Wire taking-up roller; 52. Fixed plate; 53. I-shaped wheel; 6. Electric push rod; 61. Limit ring; 7. Counter; 71. Connecting rod. DETAILED DESCRIPTION

[0022] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides an automatic cutting device for bonding gold wire by improvement. The technical solution of the utility model is:

[0024] like Figure 1 - Figure 3As shown, the automatic cutting device for bonding gold wire includes a base 1, a mounting plate 2 13 is fixedly installed on the top wall of the base 1, a motor 4 is fixedly installed on the side wall of the mounting plate 2 13, and a wire feeding roller 41 is fixedly installed on the output end of the motor 4, and also includes a mounting frame 12; the mounting frame 12 is fixedly installed on the top wall of the base 1, an electric telescopic rod 2 is fixedly installed on the inner top wall of the mounting frame 12, a cutter 21 is provided on the bottom wall of the electric telescopic rod 2, a connecting plate 33 is fixedly installed on the side wall of the electric telescopic rod 2, and the bottom end of the connecting plate 33 is fixedly installed on the side wall of the electric telescopic rod 2. Four springs 31 are fixedly installed on the wall, wherein a pressure plate 3 is arranged below every two springs 31, and the pressure plate 3 is connected to the connecting plate 33 through the spring 31. Two guide rods 32 are fixedly installed on the top wall of the pressure plate 3. The guide rods 32 are inside the springs 31, and the guide rods 32 pass through the connecting plate 33 and extend to the top of the connecting plate 33. The springs 31 are limited by the setting of the guide rods 32 to prevent the springs 31 from weakening in elastic force and deforming during subsequent use, affecting the use effect. A limit plate 321 is fixedly installed on the top wall of the guide rod 32. 321 is located above the connecting plate 33. The setting of the limiting plate 321 facilitates the limiting of the guide rod 32. The bottom wall of the pressing plate 3 is fixedly installed with a rubber pad. The setting of the rubber pad facilitates the protection of the bonding wire. The top wall of the base 1 is fixedly installed with a workbench 14. The top wall of the workbench 14 is provided with a notch, which corresponds to the cutter 21. When the electric telescopic rod 2 is started to move toward the bonding wire, the bottom wall of the pressing plate 3 will first contact the bonding wire, and then the electric telescopic rod 2 will continue to drive the cutter 21 downward. The cutter 21 moves so that the cutter 21 contacts the bonding gold wire and cuts the bonding gold wire. At this time, the pressure plate 3 is subjected to the force of the workbench 14 and moves upward relative to the cutter 21. The spring 31 acts on the pressure plate 3, so that the pressure plate 3 is tightly pressed on the bonding gold wire to prevent the bonding gold wire from shaking. After the subsequent cutter 21 cuts the bonding gold wire, the bonding gold wire is pressed by the pressure plate 3 and will not contact other objects. When the subsequent cutter 21 moves upward, the pressure plate 3 can continue to act on the bonding gold wire until the next winding, so as to prevent the bonding gold wire from contacting other objects and causing contamination.

[0025] like Figure 1 and Figure 3As shown, in one embodiment, a mounting plate 11 is fixedly installed on the top wall of the base 1, a motor 2 5 is fixedly installed on the side wall of the mounting plate 11, a take-up roller 51 is fixedly installed on the output end of the motor 2 5, a fixing plate 52 is fixedly installed on the side wall of the take-up roller 51, an I-shaped wheel 53 is arranged on the side wall of the take-up roller 51, a connecting rod 71 is fixedly installed on the side wall of the fixing plate 52 close to the mounting plate 11, a counter 7 is fixedly installed on the side wall of the mounting plate 11 close to the connecting rod 71, the counter 7 corresponds to the connecting rod 71, an electric push rod 6 is fixedly installed on the side wall of the mounting plate 11, a limiting ring 61 is fixedly installed on the end of the electric push rod 6 away from the mounting plate 11, and the limiting ring 61 is fixedly installed on the side wall of the electric push rod 6. 1 and the electric push rod 6 make the bonding gold wire more evenly wound on the I-shaped wheel 53; when the bonding gold wire is wound, the motor 2 5 is started, the motor 2 5 drives the wire take-up roller 51 to rotate, and the wire take-up roller 51 rotates to drive the I-shaped wheel 53 to wind the bonding gold wire, and at the same time, the connecting rod 71 rotates so that the connecting rod 71 contacts the counter 7. When the connecting rod 71 contacts the counter 7, the counter 7 counts the number of rotations. When the counted number of rotations reaches the set number of rotations, the motor 2 5 stops rotating. At this time, the electric telescopic rod 2 is started to use the cutter 21 to cut the bonding gold wire, thereby improving the accuracy of the length of the bonding gold wire wound by the I-shaped wheel 53 and the convenience of cutting.

[0026] The specific working method is as follows: start motor 2 5 and motor 1 4, motor 2 5 and motor 1 4 respectively drive the wire take-up roller 51 and wire feeding roller 41 to rotate, the wire take-up roller 51 rotates to drive the I-shaped wheel 53 to wind the bonding gold wire, and at the same time the connecting rod 71 rotates so that the connecting rod 71 contacts the counter 7, when the connecting rod 71 contacts the counter 7, the counter 7 will count the number of rotations, when the counted number of circles reaches the set number of circles, the motor 2 5 will stop rotating, at this time, when the electric telescopic rod 2 is started to move in the direction of the bonding gold wire, the bottom end wall of the pressure plate 3 will first contact the bonding gold wire, and then the electric The telescopic rod 2 continues to drive the cutter 21 to move downward, so that the cutter 21 contacts the bonding gold wire and cuts the bonding gold wire. At this time, the pressure plate 3 will be subjected to the force of the workbench 14 and move upward relative to the cutter 21. The spring 31 acts on the pressure plate 3, so that the pressure plate 3 is tightly pressed on the bonding gold wire to prevent the bonding gold wire from shaking. After the subsequent cutter 21 cuts the bonding gold wire, the bonding gold wire is pressed by the pressure plate 3 and will not contact other objects. When the subsequent cutter 21 moves upward, the pressure plate 3 can continue to act on the bonding gold wire until the next winding, so as to prevent the bonding gold wire from contacting other objects and causing contamination.

[0027] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. An automatic gold wire cutting device, comprising a base (1), a second mounting plate (13) being fixedly mounted on the top wall of the base (1), a first motor (4) being fixedly mounted on the side wall of the second mounting plate (13), and a wire feeding roller (41) being fixedly mounted on the output end of the first motor (4), characterized in that: Also includes; A mounting frame (12) is fixedly mounted on the top wall of the base (1); an electric telescopic rod (2) is fixedly mounted on the inner top wall of the mounting frame (12); a cutter (21) is arranged on the bottom wall of the electric telescopic rod (2); a connecting plate (33) is fixedly mounted on the side wall of the electric telescopic rod (2); four springs (31) are fixedly mounted on the bottom wall of the connecting plate (33); a pressing plate (3) is arranged below every two springs (31); the pressing plate (3) is connected to the connecting plate (33) via the springs (31); a working table (14) is fixedly mounted on the top wall of the base (1); a notch is provided on the top wall of the working table (14); the notch corresponds to the cutter (21).

2. The automatic gold bonding wire cutting device according to claim 1, characterized in that: A mounting plate 1 (11) is fixedly mounted on the top wall of the base (1), a motor 2 (5) is fixedly mounted on the side wall of the mounting plate 1 (11), a wire take-up roller (51) is fixedly mounted on the output end of the motor 2 (5), a fixing plate (52) is fixedly mounted on the side wall of the wire take-up roller (51), an I-shaped wheel (53) is arranged on the side wall of the wire take-up roller (51), a connecting rod (71) is fixedly mounted on the fixing plate (52) near the side wall of the mounting plate 1 (11), a counter (7) is fixedly mounted on the side wall of the mounting plate 1 (11) near the connecting rod (71), and the counter (7) corresponds to the connecting rod (71).

3. The automatic gold bonding wire cutting device according to claim 2, characterized in that: An electric push rod (6) is fixedly mounted on the side wall of the mounting plate 1 (11), and a limiting ring (61) is fixedly mounted on one end of the electric push rod (6) away from the mounting plate 1 (11).

4. The automatic gold bonding wire cutting device according to claim 1, characterized in that: Two guide rods (32) are fixedly mounted on the top wall of the pressure plate (3), the guide rods (32) are located inside the spring (31), and the guide rods (32) penetrate the connecting plate (33) and extend to the top of the connecting plate (33).

5. The automatic gold bonding wire cutting device according to claim 4, characterized in that: A limit plate (321) is fixedly mounted on the top wall of the guide rod (32), and the limit plate (321) is located above the connecting plate (33).

6. The automatic gold bonding wire cutting device according to claim 1, characterized in that: A rubber pad is fixedly mounted on the bottom wall surface of the pressing plate (3).

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