CN111824849A - Rewinding method of gold bonding wire - Google Patents
Rewinding method of gold bonding wire Download PDFInfo
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- CN111824849A CN111824849A CN202010466992.2A CN202010466992A CN111824849A CN 111824849 A CN111824849 A CN 111824849A CN 202010466992 A CN202010466992 A CN 202010466992A CN 111824849 A CN111824849 A CN 111824849A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
- B65H49/18—Methods or apparatus in which packages rotate
- B65H49/20—Package-supporting devices
- B65H49/32—Stands or frameworks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/40—Arrangements for rotating packages
- B65H54/42—Arrangements for rotating packages in which the package, core, or former is rotated by frictional contact of its periphery with a driving surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/70—Other constructional features of yarn-winding machines
- B65H54/702—Arrangements for confining or removing dust
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/511—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning
- B65H2301/5115—Cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/36—Wires
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Wire Bonding (AREA)
Abstract
The invention discloses a rewinding method of a gold bonding wire, wherein before rewinding, a rewinding device with the following structure is obtained, and the rewinding device comprises a rack, a paying-off component and a wire collecting component, wherein the paying-off component and the wire collecting component are erected on the rack; the take-up rotating shaft is rotatably arranged on the rack, one end of the take-up rotating shaft is connected with a take-up motor, and the other end of the take-up rotating shaft is detachably provided with the take-up wheel; a heating annealing device and a cleaning device are sequentially arranged between the pay-off wheel and the take-up wheel; the cleaning device comprises a cleaning seat, wherein a flexible water absorption pad used for absorbing absolute ethyl alcohol is placed on the cleaning seat, and the upper surface of the flexible water absorption pad is matched with the height of a bonding wire connected between a paying-off wheel and a take-up pulley, so that the bonding wire can be attached to the flexible water absorption pad. The invention has the advantages of convenient operation and use, high rewinding efficiency, contribution to reducing the probability of stretch-breaking and dust adhesion, improvement on quality and the like.
Description
Technical Field
The invention relates to the technical field of gold bonding wire production, in particular to a rewinding method of a gold bonding wire.
Background
The gold bonding wire is a gold alloy wire used as a connecting wire in an integrated circuit, is also called a ball bonding wire or a lead wire gold wire, has the gold content of more than or equal to 99.99 percent, has the total of trace additive elements of less than 0.01 percent, has three types of gamma type, C type, FA type and the like, is used for high-speed bonding, has the functions of refining crystal grains, improving recrystallization temperature and strengthening gold for beryllium, copper, silver and the like, is vacuum-melted by a high-frequency furnace, remelted and directionally crystallized for the second time, is cold-processed into a material after being homogenized or manufactured by a liquid extrusion process, is an important material in the microelectronic industry and is used as a connecting wire between a chip and a lead frame.
During the process of processing and producing the bonding wire, the bonding wire needs to be repackaged on a small bobbin, when the bonding wire is rewound on the small bobbin, the speed of taking up and paying off needs to be controlled, and the adhesion of dust in the winding process needs to be removed.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a method for rewinding a gold bonding wire, which has the advantages of convenient operation and use, high rewinding efficiency, contribution to reducing the probability of tensile fracture and dust adhesion and improvement of quality.
In order to solve the technical problems, the invention adopts the following technical scheme:
a rewinding method of a gold bonding wire is characterized in that before rewinding, a rewinding device with the following structure is obtained, the rewinding device comprises a rack, a paying-off component and a wire collecting component, wherein the paying-off component and the wire collecting component are erected on the rack; the wire take-up rotating shaft is rotatably arranged on the rack, one end of the wire take-up rotating shaft is connected with a wire take-up motor, and the other end of the wire take-up rotating shaft is detachably provided with a wire take-up wheel; a heating annealing device and a cleaning device are sequentially arranged between the pay-off wheel and the take-up wheel and are used for annealing and cleaning bonding wires wound and connected between the pay-off wheel and the take-up wheel; the cleaning device comprises a cleaning seat, a flexible water absorption pad for absorbing absolute ethyl alcohol is placed on the cleaning seat, and the upper surface of the flexible water absorption pad is matched with the height of a bonding wire connected between the paying-off wheel and the take-up wheel, so that the bonding wire can be attached to the flexible water absorption pad.
Therefore, the bonding wire wound on the pay-off wheel sequentially passes through the heating annealing device and the cleaning device and is wound on the take-up wheel, the take-up wheel is driven to rotate by the take-up motor on the take-up wheel, the bonding wire is gradually pulled out of the pay-off wheel, and the bonding wire is rewound on the take-up wheel. The bonding wire is subjected to annealing softening processing treatment in the heating annealing device, so that the bonding wire can obtain higher breaking force and elongation, and the breaking probability of the bonding wire in the rewinding process can be effectively reduced. In addition, the bonding wire is attached to the flexible water absorption pad adsorbed with absolute ethyl alcohol, so that the annealed bonding wire can be cooled immediately, the surface oxidation of the bonding wire is avoided, dust on the bonding wire can be wiped off through the flexible water absorption pad, and the attachment of the dust is reduced. The structure design is reasonable, the operation and the use are convenient, and the rewinding efficiency is favorably improved.
Further, belt cleaning device still including hanging to establish the point of wasing seat top drips infusion mechanism, drip infusion mechanism is including the transfusion bottle that is used for storing absolute ethyl alcohol, be connected with the transfer line on the transfusion bottle, install the infusion valve that is used for controlling absolute ethyl alcohol dropping speed on the transfer line, just the transfer line export is hung in midair the top of flexible absorbent pad.
The flexible water absorption pad mainly cleans the surface of the bonding wire through adsorbed absolute ethyl alcohol, and the absolute ethyl alcohol is extremely volatile and needs to be continuously supplemented in the rewinding process of the bonding wire. However, once the absolute ethyl alcohol is supplemented too much, the absolute ethyl alcohol exceeds the adsorption capacity of the flexible water absorption pad, the absolute ethyl alcohol flows out, the friction force between the bonding wire and the flexible water absorption pad is reduced, the cleaning effect is influenced, the absolute ethyl alcohol is supplemented too little, the friction force between the flexible water absorption pad and the bonding wire is too large, the bonding wire is lack of the absolute ethyl alcohol and cannot be cleaned, and the absolute ethyl alcohol can be supplemented dropwise at a constant speed by arranging the drip infusion mechanism.
Furthermore, the flexible water absorption pad is made of felt or non-woven fabric placed on the cleaning seat.
Furthermore, a drying device is arranged between the cleaning device and the wire take-up assembly, and a channel for the bonding wires to pass through is formed in the middle of the drying device.
Furthermore, drying device is including the whole U type trough-shaped casing that is, the inner wall of casing is provided with infrared fluorescent tube.
Furthermore, the heating annealing device comprises a heating box and a glass tube for the bonding wire to pass through, the glass tube is arranged in the heating box in a penetrating mode, and nitrogen is introduced into the glass tube.
Furthermore, the cleaning devices are provided with two groups which are respectively connected with two ends of the heating annealing device.
Therefore, the bonding wire entering the heating annealing device can be cleaned by the cleaning device arranged at the front end of the heating annealing device, and the increase of the adhesive force between impurities attached to the bonding wire and the bonding wire in the annealing heating process is avoided.
Furthermore, a tension balancing device is further arranged between the paying-off component and the take-up component and comprises a brake mechanism used for limiting the rotating speed of the paying-off rotating shaft, a movable pulley used for applying pressure to change friction force is hung on the brake mechanism through a pull rope, the movable pulley is arranged on the rack in a floating mode through an elastic compensation mechanism, at least one fixed pulley is further arranged on the rack, and a bonding wire between the paying-off component and the take-up component tightly and straightly bypasses the fixed pulley and the movable pulley and upwards lifts the movable pulley.
The rotating speed of the pay-off rotating shaft is controlled through the brake mechanism, so that the bonding wire is straightened under the rotating action of the take-up pulley, in order to pull out the bonding wire, the pulling force needs to exceed the friction force of the brake mechanism acting on the pay-off rotating shaft, the pulling force applied by the take-up pulley is gradually increased, the larger the lifting force of the bonding wire on the movable pulley is, the movable pulley moves upwards under the action of external force, the movable pulley is hung on the pull rope of the brake mechanism at the same time, after the movable pulley moves upwards, the smaller the pressure applied to the brake mechanism by the pull rope is, the friction force applied to the pay-off rotating shaft by the brake mechanism is also reduced at the same time, and balance is finally achieved, so that the bonding wire is pulled out from the pay. At the moment, the tension on the bonding wire is half of the difference between the gravity of the movable pulley and the tension of the pull rope and the lifting force of the elastic compensation mechanism, and the tension of the bonding wire can be controlled within a reasonable value as long as the relationship among the movable pulley, the brake mechanism and the elastic compensation mechanism is controlled. The wire winding linear speed of the bonding wire is increased along with the increase of the number of wire winding layers on the wire winding wheel, but the wire winding linear speed is slowly changed due to the small diameter of the bonding wire, and the whole tension balancing device can quickly reach balance again. The mechanism has an automatic adjusting function, and can adjust the tension of the bonding wire in a self-adaptive manner without an additional sensing device.
Furthermore, the brake mechanism comprises a brake seat arranged above the paying-off rotating shaft, the brake seat is provided with a shaft hole vertically arranged along the radial direction of the paying-off rotating shaft, a brake shaft is arranged in the shaft hole, the lower end of the brake shaft is provided with a brake pad matched with the paying-off rotating shaft, and a return spring is arranged between the brake shaft and the brake seat, so that a gap is formed between the brake pad and the paying-off rotating shaft; the upper end of the brake shaft is provided with a fixed pulley, and the movable pulley is suspended through a pull rope which bypasses the fixed pulley.
Furthermore, the elastic compensation mechanism comprises a vertically arranged limiting pipe, a first magnet is fixedly arranged at the bottom of the limiting pipe, a second magnet is arranged above the first magnet in a suspending manner, and a movable pulley is rotatably arranged above the second magnet.
In conclusion, the invention has the advantages of convenient operation and use, high rewinding efficiency, contribution to reducing the probability of tensile failure and dust adhesion, improvement on quality and the like.
Drawings
Fig. 1 is a schematic structural view of a production winding device of a bonding wire of the present invention.
Fig. 2 is a schematic structural view of the tension balancing mechanism.
Fig. 3 is a schematic structural view of the brake mechanism.
Detailed Description
The invention will be described in further detail below with reference to an example of a production winding device for use in the method according to the invention.
In the specific implementation: as shown in fig. 1 to 3, a bonding wire production and winding device includes a frame 1, and a wire releasing assembly 2 and a wire collecting assembly 3 erected on the frame 1, where the wire releasing assembly 2 includes a wire releasing rotating shaft 21 for detachably mounting a wire releasing wheel 22, and the wire releasing rotating shaft 21 is rotatably mounted on the frame 1; the wire take-up rotating shaft 31 is used for detachably mounting a wire take-up pulley 33, the wire take-up rotating shaft 31 is rotatably mounted on the rack 1, one end of the wire take-up rotating shaft is connected with a wire take-up motor 32, and the other end of the wire take-up rotating shaft is detachably mounted with the wire take-up pulley 33; a heating annealing device 4 and a cleaning device 5 are sequentially arranged between the pay-off wheel 22 and the take-up wheel 33 and are used for annealing and cleaning bonding wires wound and connected between the pay-off wheel 22 and the take-up wheel 33; the cleaning device 5 comprises a cleaning seat 51, a flexible water absorption pad 52 used for absorbing absolute ethyl alcohol is placed on the cleaning seat 51, and the upper surface of the flexible water absorption pad 52 is matched with the height of a bonding wire connected between the pay-off wheel 22 and the take-up wheel 33, so that the bonding wire can be attached to the flexible water absorption pad 52.
Therefore, the bonding wire wound on the pay-off wheel sequentially passes through the heating annealing device and the cleaning device and is wound on the take-up wheel, the take-up wheel is driven to rotate by the take-up motor on the take-up wheel, the bonding wire is gradually pulled out of the pay-off wheel, and the bonding wire is rewound on the take-up wheel. The bonding wire is subjected to annealing softening processing treatment in the heating annealing device, so that the bonding wire can obtain higher breaking force and elongation, and the breaking probability of the bonding wire in the rewinding process can be effectively reduced. In addition, the bonding wire is attached to the flexible water absorption pad adsorbed with absolute ethyl alcohol, so that the annealed bonding wire can be cooled immediately, the surface oxidation of the bonding wire is avoided, dust on the bonding wire can be wiped off through the flexible water absorption pad, and the attachment of the dust is reduced. The structure design is reasonable, the operation and the use are convenient, and the rewinding efficiency is favorably improved.
During implementation, belt cleaning device 5 is still including hanging to be established drip infusion mechanism 53 above wash seat 51, drip infusion mechanism 53 is including the transfusion bottle that is used for storing absolute ethyl alcohol, be connected with the transfer line on the transfusion bottle, install the infusion valve that is used for controlling absolute ethyl alcohol dropping speed on the transfer line, just the transfer line export suspends in midair the top of flexible absorbent pad 52.
The flexible water absorption pad mainly cleans the surface of the bonding wire through adsorbed absolute ethyl alcohol, and the absolute ethyl alcohol is extremely volatile and needs to be continuously supplemented in the rewinding process of the bonding wire. However, once the absolute ethyl alcohol is supplemented too much, the absolute ethyl alcohol exceeds the adsorption capacity of the flexible water absorption pad, the absolute ethyl alcohol flows out, the friction force between the bonding wire and the flexible water absorption pad is reduced, the cleaning effect is influenced, the absolute ethyl alcohol is supplemented too little, the friction force between the flexible water absorption pad and the bonding wire is too large, the bonding wire is lack of the absolute ethyl alcohol and cannot be cleaned, and the absolute ethyl alcohol can be supplemented dropwise at a constant speed by arranging the drip infusion mechanism.
In practice, the flexible absorbent pad 52 is felt or non-woven fabric placed on the cleaning seat 51.
When the wire winding device is implemented, a drying device 6 is further arranged between the cleaning device 5 and the wire winding assembly 3, and a channel for the bonding wires to pass through is formed in the middle of the drying device 6.
In implementation, the drying device 6 comprises a casing which is integrally in a U-shaped groove shape, and an infrared lamp tube is arranged on the inner wall of the casing.
During implementation, the heating annealing device 4 comprises a heating box and a glass tube for the bonding wire to pass through, the glass tube is arranged in the heating box in a penetrating manner, and nitrogen is introduced into the glass tube.
In implementation, the cleaning devices 5 are provided with two groups, which are respectively connected and arranged at two ends of the heating and annealing device 4.
Therefore, the bonding wire entering the heating annealing device can be cleaned by the cleaning device arranged at the front end of the heating annealing device, and the increase of the adhesive force between impurities attached to the bonding wire and the bonding wire in the annealing heating process is avoided.
In implementation, a tension balancing device 7 is further arranged between the paying-off component 2 and the take-up component 3, the tension balancing device 7 comprises a brake mechanism 71 used for limiting the rotating speed of the paying-off rotating shaft 21, a movable pulley 72 used for applying pressure to change friction force is hung on the brake mechanism 71 through a pull rope, the movable pulley 72 is arranged on the rack 1 in a floating and lifting mode through an elastic compensation mechanism 73, at least one fixed pulley 74 is further arranged on the rack 1, and a bonding wire between the paying-off component 2 and the take-up component 3 tightly and directly bypasses the fixed pulley 74 and the movable pulley 72 and upwards lifts the movable pulley 72.
The rotating speed of the pay-off rotating shaft is controlled through the brake mechanism, so that the bonding wire is straightened under the rotating action of the take-up pulley, in order to pull out the bonding wire, the pulling force needs to exceed the friction force of the brake mechanism acting on the pay-off rotating shaft, the pulling force applied by the take-up pulley is gradually increased, the larger the lifting force of the bonding wire on the movable pulley is, the movable pulley moves upwards under the action of external force, the movable pulley is hung on the pull rope of the brake mechanism at the same time, after the movable pulley moves upwards, the smaller the pressure applied to the brake mechanism by the pull rope is, the friction force applied to the pay-off rotating shaft by the brake mechanism is also reduced at the same time, and balance is finally achieved, so that the bonding wire is pulled out from the pay. At the moment, the tension on the bonding wire is half of the difference between the gravity of the movable pulley and the tension of the pull rope and the lifting force of the elastic compensation mechanism, and the tension of the bonding wire can be controlled within a reasonable value as long as the relationship among the movable pulley, the brake mechanism and the elastic compensation mechanism is controlled. The wire winding linear speed of the bonding wire is increased along with the increase of the number of wire winding layers on the wire winding wheel, but the wire winding linear speed is slowly changed due to the small diameter of the bonding wire, and the whole tension balancing device can quickly reach balance again. The mechanism has an automatic adjusting function, and can adjust the tension of the bonding wire in a self-adaptive manner without an additional sensing device.
In implementation, the brake mechanism 71 comprises a brake seat arranged above the paying-off rotating shaft 21, the brake seat is provided with a shaft hole vertically arranged along the radial direction of the paying-off rotating shaft, a brake shaft is arranged in the shaft hole, the lower end of the brake shaft is provided with a brake pad matched with the paying-off rotating shaft, and a return spring is arranged between the brake shaft and the brake seat, so that a gap is formed between the brake pad and the paying-off rotating shaft; the upper end of the brake shaft is provided with a fixed pulley, and the movable pulley 72 is suspended by a pull rope passing around the fixed pulley.
During implementation, the elastic compensation mechanism 73 comprises a vertically arranged limiting pipe, a first magnet is fixedly arranged at the bottom of the limiting pipe, a second magnet is arranged above the first magnet in a suspending manner, and the movable pulley 72 is rotatably arranged above the second magnet.
When the magnetic control device is used, the limiting pipe is provided with a guide groove which is arranged in a penetrating mode along the radial direction, the guide groove is arranged along the axial direction of the limiting pipe, the second magnet is provided with a guide block which is formed in a protruding mode along the radial direction, and the guide block is correspondingly arranged in the guide groove.
Therefore, the second magnet can be placed to drive the movable pulley to rotate along the axial direction.
When the device is implemented, the limiting pipe is provided with a yielding groove which is arranged in a penetrating manner along the radial direction, and the yielding groove is arranged in a penetrating manner upwards along the axial direction of the limiting pipe; the pulley groove of the movable pulley 72 is opposite to the two yielding grooves.
Therefore, the bonding wire can conveniently pass through the position limiting pipe from the lower part of the movable pulley.
The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A rewinding method of a gold bonding wire is characterized in that before rewinding, a rewinding device with the following structure is obtained, the rewinding device comprises a rack (1), a paying-off component (2) and a wire collecting component (3) which are erected on the rack (1), the paying-off component (2) comprises a paying-off rotating shaft (21) used for detachably mounting a paying-off wheel (22), and the paying-off rotating shaft (21) is rotatably mounted on the rack (1); the wire take-up device comprises a frame (1), a take-up rotating shaft (31) and a take-up wheel (33), wherein the take-up rotating shaft (31) is used for detachably mounting the take-up wheel (33), the take-up rotating shaft (31) is rotatably mounted on the frame (1), one end of the take-up rotating shaft is connected with a take-up motor (32), and the other end of the; a heating annealing device (4) and a cleaning device (5) are sequentially arranged between the paying-off wheel (22) and the take-up wheel (33) and are used for annealing and cleaning bonding wires wound and connected between the paying-off wheel (22) and the take-up wheel (33); the cleaning device (5) comprises a cleaning seat (51), a flexible water absorption pad (52) used for absorbing absolute ethyl alcohol is placed on the cleaning seat (51), the upper surface of the flexible water absorption pad (52) is matched with the height of a bonding wire connected between the paying-off wheel (22) and the take-up wheel (33), and the bonding wire can be attached to the flexible water absorption pad (52).
2. The method for rewinding gold bonding wires according to claim 1, wherein the cleaning device (5) further comprises a drip infusion mechanism (53) suspended above the cleaning seat (51), the drip infusion mechanism (53) comprises an infusion bottle for storing absolute ethyl alcohol, an infusion tube is connected to the infusion bottle, an infusion valve for controlling the dropping speed of the absolute ethyl alcohol is mounted on the infusion tube, and the outlet of the infusion tube is suspended above the flexible absorbent pad (52).
3. The method of rewinding gold bonding wires according to claim 1, wherein said flexible absorbent pad (52) is felt or non-woven fabric placed on said cleaning seat (51).
4. The method for rewinding gold bonding wires according to claim 1, characterized in that a drying device (6) is further arranged between said cleaning device (5) and said wire take-up assembly (3), and a passage for the bonding wires to pass through is arranged in the middle of said drying device (6).
5. The method for rewinding gold bonding wires according to claim 4, characterized in that said drying means (6) comprise a casing having a U-shaped channel shape as a whole, the inner wall of said casing being provided with infrared lamps.
6. The method of rewinding a gold bonding wire according to claim 1, characterized in that said thermal annealing device (4) comprises a heating chamber and a glass tube for the passage of the bonding wire, said glass tube being inserted inside said heating chamber and being filled with nitrogen.
7. The method for rewinding gold bonding wires according to claim 1, characterized in that said cleaning means (5) are provided in two groups, respectively arranged in abutment at the two ends of said heating and annealing device (4).
8. The method for rewinding the gold bonding wire according to claim 1, wherein a tension balancing device (7) is further disposed between the wire releasing assembly (2) and the wire retrieving assembly (3), the tension balancing device (7) comprises a brake mechanism (71) for limiting the rotation speed of the wire releasing rotating shaft (21), a movable pulley (72) for applying pressure to change the friction force is suspended from the brake mechanism (71) through a pulling rope, the movable pulley (72) is floatingly lifted on the frame (1) through an elastic compensation mechanism (73), at least one fixed pulley (74) is further disposed on the frame (1), and the bonding wire between the wire releasing assembly (2) and the wire retrieving assembly (3) straightly bypasses the fixed pulley (74) and the movable pulley (72) and lifts the movable pulley (72) upwards.
9. The method for rewinding the gold bonding wire according to claim 8, wherein the brake mechanism (71) includes a brake base disposed above the wire releasing rotating shaft (21), the brake base has a shaft hole vertically disposed along a radial direction of the wire releasing rotating shaft, a brake shaft is mounted in the shaft hole, a brake pad matched with the wire releasing rotating shaft is mounted at a lower end of the brake shaft, and a return spring is further disposed between the brake shaft and the brake base to provide a gap between the brake pad and the wire releasing rotating shaft; the upper end of the brake shaft is provided with a fixed pulley, and the movable pulley (72) is suspended through a pull rope which bypasses the fixed pulley.
10. The method for rewinding gold bonding wires according to claim 8, wherein said elastic compensation mechanism (73) comprises a vertically arranged limiting tube, a first magnet is fixedly arranged at the bottom of said limiting tube, a second magnet is arranged above said first magnet in a floating manner, and said movable pulley (72) is rotatably mounted above said second magnet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010466992.2A CN111824849B (en) | 2020-05-28 | 2020-05-28 | Rewinding method of gold bonding wire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010466992.2A CN111824849B (en) | 2020-05-28 | 2020-05-28 | Rewinding method of gold bonding wire |
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| CN111824849A true CN111824849A (en) | 2020-10-27 |
| CN111824849B CN111824849B (en) | 2022-08-09 |
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