Preparation method of insulating film-coated corrosion-resistant alloy bonding wire

Abstract

The present invention discloses a method for preparing an insulating coated anti-corrosion alloy bonding wire, which relates to the technical field of alloy bonding wire production. The method for preparing an insulating coated anti-corrosion alloy bonding wire is realized by a preparation device for an insulating coated anti-corrosion alloy bonding wire, and the preparation device for an insulating coated anti-corrosion alloy bonding wire comprises: a bracket, a coating box, a curing box, a pay-off wheel and a take-up wheel; the coating box is fixedly connected to the bracket, and a feed pipe is fixedly connected to the bottom of the coating box, and the upper end of the feed pipe passes through the top of the coating box and extends to the upper side of the coating box, and at least two discharge ports are provided on the side wall of the lower end of the feed pipe, so that the liquid insulating coating material at the bottom of the coating tank flows downward and adheres to the upper surface of the alloy bonding wire, so that the liquid insulating coating material is more evenly adhered to the alloy bonding wire, thereby ensuring the production quality of the alloy bonding wire.

Description

Technical Field

[0001] The present invention relates to the technical field of alloy bonding wire production, and more particularly to a method for preparing an insulating film-coated corrosion-resistant alloy bonding wire. Background Art

[0002] With the rapid development of modern industrial technology, electronic products are increasingly moving towards portability, miniaturization, networking, and multimedia. The packaging process is placing increasingly higher demands on bonding wire products, moving towards multi-pin, small pitch, and multi-column and multi-layer stacking. Wire bonding faces increasing challenges. To achieve higher packaging density and multi-functional aggregation within a smaller package volume, it is necessary to reduce lead pitch, increase the number of leads, and reduce wire arc height. At the same time, in some precision devices or under harsh working environments, to ensure device reliability and prevent corrosion of the bonding wire during use, the inability to use cheaper silver or copper wires to replace expensive gold wires results in high device costs.

[0003] The Chinese invention patent with patent application announcement number CN105470228B discloses an insulating coated corrosion-resistant alloy bonding wire and a preparation method thereof, which comprises the following steps: 1) selection or purification of alloy substrate: selecting a high-purity substrate metal of 99.999% or more; or using a purification process to make the purity of the substrate metal reach 99.999% or more; 2) melting and casting: mixing the high-purity substrate metal with the required alloy, and casting it into an alloy metal rod through pre-alloying, master alloying and continuous casting processes; 3) wire drawing: drawing the alloy metal rod into a wire of the required wire diameter through a wire drawing machine; 4) annealing; 5) coating and curing: covering the surface of the alloy bonding wire with an insulating coating material by horizontal immersion coating, and performing UV curing treatment. Process; wherein step 5) adopts the following special device for coating and curing: the special device includes a circulation tank and a horizontal immersion coating tank installed in the circulation tank for containing liquid insulating coating material, the upper edge of the circulation tank is lower than the upper edge of the horizontal immersion coating tank; the special device also includes a circulation dripping device located above the horizontal immersion coating tank, and the circulation tank is connected to the circulation dripping device through a circulation pump and a circulation pipe; the special device also includes a UV curing furnace installed on the right side of the circulation tank; the special device also includes a pay-off device installed on the left side of the circulation tank and a take-up device installed on the right side of the UV curing furnace; the bonding wire between the pay-off device and the take-up device passes through the upper port of the horizontal immersion coating tank and the curing chamber of the UV curing furnace in sequence.

[0004] Although the invention uses a coating material to isolate the metal from the external environment, thereby improving the reliability of bonding; at the same time, it uses alloy doping to reduce the diffusion rate of atoms between the bonding wire and the substrate after welding, thereby improving the brittle failure problem caused by the intermetallic compound (IMC) between the two, and further improving the reliability of the bonding wire.

[0005] However, when coating the alloy bonding wire in this invention, the liquid insulating coating material in its circulating dripping device flows out at a fixed speed and flow rate. When the speed of the pay-off device and the take-up device is too fast, the speed and flow rate of the liquid insulating coating material flowing out remain fixed, which will cause the thickness of the liquid insulating coating material attached to the alloy bonding wire to be relatively uneven, and the liquid insulating coating material gathers at the bottom of the horizontal immersion coating tank due to gravity, while the liquid insulating coating material located on the upper side of the horizontal immersion coating tank flows downward due to gravity, resulting in the thickness of the liquid insulating coating material attached to the upper surface of the alloy bonding wire being less than the thickness of the liquid insulating coating material attached to the lower surface when the alloy bonding wire passes through the horizontal immersion coating tank, resulting in the thickness of the liquid insulating coating material attached to the circumferential wall of the alloy bonding wire being relatively uneven, thereby causing the production quality of the alloy bonding wire to decline. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention aims to provide a method for preparing an insulating coated corrosion-resistant alloy bonding wire.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A method for preparing an insulating film-coated corrosion-resistant alloy bonding wire. The method for preparing an insulating film-coated corrosion-resistant alloy bonding wire is implemented by an insulating film-coated corrosion-resistant alloy bonding wire preparation device. The insulating film-coated corrosion-resistant alloy bonding wire preparation device includes: a bracket, a coating box, a curing box, a wire pay-off wheel and a wire take-up wheel.

[0009] The film coating box is fixedly connected to the bracket, and the bottom of the film coating box is fixedly connected to a feed pipe, the upper end of the feed pipe passes through the top of the film coating box and extends to the upper side of the film coating box, and at least two discharge ports are provided on the side wall of the lower end of the feed pipe, and a coating plate is horizontally arranged on the lower side of the film coating box, and a coating groove is provided on the coating plate, and at least two coating tubes are vertically arranged directly above the coating groove, and the upper end of the coating tube passes through the bottom of the film coating box and is connected to the film coating box, and the bottom of the film coating box is elastically connected to a horizontally movable plate, and at least two material baffles are fixedly connected to the side wall of the movable plate, and the material baffles are inserted in the coating tube.

[0010] The curing box is fixedly connected to the side wall of the coating box, and a cylinder is rotatably connected to the inner wall of the curing box. The two ends of the cylinder pass through the side wall of the curing box and extend to the outside of the curing box, and one end of the cylinder is fixedly connected to the coating plate. At least two UV curing lamps are fixedly connected to the side wall of the cylinder.

[0011] The pay-off wheel and the take-up wheel are both rotatably connected to the side wall of the bracket, and the pay-off wheel and the take-up wheel are respectively located on both sides of the laminating box. At least two positioning rods are fixedly connected to the pay-off wheel, and the positioning rods cooperate with the movable plate.

[0012] Preferably, both ends of the bracket are rotatably connected to a rotating shaft, the pay-out wheel and the take-up wheel are respectively fixedly connected to the rotating shafts at both ends of the bracket, and a drive motor is fixedly connected to the bracket, and the output shaft of the drive motor is fixedly connected to the end of one of the rotating shafts.

[0013] The bracket is rotatably connected to a rotating shaft, the rotating shaft is close to and parallel to the take-up wheel, the rotating shaft is fixedly connected to a worm, the cylinder is fixedly connected to a turbine, and the turbine is meshed with the worm.

[0014] Preferably, the rotating shaft and the rotary shaft are both fixedly connected with pulleys, a belt is sleeved on the pulley, and the pulleys are connected via belt transmission.

[0015] Preferably, a cavity is opened at the bottom of the coating box, the movable plate is slidably connected to the side wall of the cavity, and one end of the movable plate is fixedly connected to a push rod, one end of the push rod passes through the side wall of the cavity and is fixedly connected to a push plate, and the push plate cooperates with the positioning rod.

[0016] A first spring is fixedly connected to the side wall of the movable plate, one end of the first spring is fixedly connected to the side wall of the cavity, and the end of the movable plate is fixedly connected to a connecting plate, at least two connecting rods are fixedly connected to the side wall of the connecting plate, and the connecting rods are fixedly connected to the side wall of the material blocking plate.

[0017] Preferably, the lower surface of the coating box is fixedly connected to a fixed plate, and the end of the coating plate away from the curing box is fixedly connected to a connecting tube, the connecting tube is rotatably connected to the fixed plate, and one end of the connecting tube passes through the fixed plate and extends to the side of the fixed plate away from the coating plate.

[0018] Preferably, at least two circular limit plates are fixedly connected to the coating plate, and the upper end surface of the circular limit plate contacts a positioning plate that moves up and down. The positioning plate is located between two adjacent coating tubes, and the two ends of the positioning plate are fixedly connected to a blocking block through a moving rod. The blocking block is located directly below the coating tube, and the blocking block is used to block the coating tube. A second spring is fixedly connected to the upper surface of the positioning plate, and the upper end of the second spring is fixedly connected to the bottom of the coating box.

[0019] Preferably, a sliding rod is fixedly connected to the positioning plate, and the sliding rod is slidably connected to the outer side wall of the coating tube.

[0020] Preferably, a buoyancy plate is horizontally arranged in the film coating box, and a limiting rod is fixedly connected to the buoyancy plate. The limiting rod extends to the outside of the film coating box, and the limiting rod cooperates with the positioning rod.

[0021] Preferably, rubber scrapers are fixedly connected to the four sides of the buoyancy plate, and the ends of the rubber scrapers are in contact with the inner walls of the film coating box.

[0022] A gravity block is fixedly connected to the buoyancy plate, and the gravity value of the gravity block is smaller than the buoyancy value of the buoyancy plate in the insulating coating material.

[0023] Preferably, the method for preparing the insulating coated corrosion-resistant alloy bonding wire specifically comprises the following steps:

[0024] S1: Fix the pay-off wheel wound with the alloy bonding wire on the rotating shaft close to the coating box, fix the take-up wheel on the rotating shaft close to the UV curing lamp, and pass one end of the alloy bonding wire through the connecting tube, the coating tank, the cylinder and wind it on the take-up wheel.

[0025] S2: The liquid insulating coating material is injected into the coating box through the feed pipe, and the liquid insulating coating material flows into the coating tank through the coating pipe to achieve coating treatment of the alloy bonding wire.

[0026] S3: Start the drive motor and the UV curing lamp. The output shaft of the drive motor drives the rotating shaft, the rotating shaft, the pay-off wheel, the take-up wheel and the worm to rotate simultaneously through the cooperation of the belt and the pulley. The pay-off wheel pays off the alloy bonding wire and the take-up wheel reels the alloy bonding wire. When the alloy bonding wire passes through the coating tank, the liquid insulating coating material in the coating tank adheres to the alloy bonding wire. When the alloy bonding wire with the liquid insulating coating material passes through the UV curing lamp, the UV curing lamp cures the liquid insulating coating material adhered to the surface of the alloy bonding wire, thereby realizing the coating treatment of the alloy bonding wire.

[0027] S4: When the positioning rod on the pay-off wheel contacts the push plate, the rotation of the positioning rod pushes the push plate toward the coating box, driving the baffle plate to separate from the coating tube. The coating tube opens, and the liquid insulating coating material flows into the coating tank for filling. The faster the pay-off wheel rotates, the more frequently the coating tube opens, and the more frequently the liquid insulating coating material flows out. This realizes the control of the outflow of the liquid insulating coating material according to the moving speed of the alloy bonding wire.

[0028] S5: The rotation of the worm drives the turbine to rotate, which drives the cylinder and the UV curing lamp to rotate. The UV curing lamp cures the liquid insulating coating material covering the circumferential wall of the alloy bonding wire, so as to facilitate uniform curing of the liquid insulating coating material covering the circumferential wall of the alloy bonding wire.

[0029] S6: As the liquid insulating coating material in the coating box decreases, the buoyancy plate drives the limit rod to move downward. When the liquid insulating coating material in the coating box is used up, the end of the limit rod away from the buoyancy plate contacts the side wall of the pay-off wheel. When the positioning rod contacts the limit rod, the limit rod blocks the pay-off wheel, the rotating shaft and the take-up wheel from continuing to rotate, thereby preventing the alloy bonding wire from being wound up when the take-up wheel is not coated with the insulating coating material.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. In the present invention, the driving motor drives the rotating shaft, the rotating shaft, the pay-off wheel, the take-up wheel, and the worm to rotate simultaneously, the pay-off wheel pays off the alloy bonding wire, and the take-up wheel reels the alloy bonding wire. The worm drives the turbine to rotate, driving the cylinder, the UV curing lamp, the coating plate, and the circular limiting plate to rotate. During the rotation of the coating plate, the opening of the coating tank rotates downward, and the arc edge of the circular limiting plate rotates upward, pushing the positioning plate and the blocking block upward, and the blocking block is inserted into the coating tube to achieve the closure of the coating tube. At the same time, the liquid insulating coating material at the bottom of the coating tank flows downward and adheres to the upper surface of the alloy bonding wire, so that the liquid insulating coating material is evenly adhered to the alloy bonding wire, thereby ensuring the production quality of the alloy bonding wire. The rotation of the UV curing lamp solidifies the liquid insulating coating material attached to the circumferential wall of the alloy bonding wire in a ring shape, thereby achieving the coating treatment of the alloy bonding wire, and avoiding the phenomenon that the liquid insulating coating material on the circumferential wall of the alloy bonding wire away from the UV curing lamp is slowly and unevenly cured.

[0032] 2. In the present invention, the movable plate, the push rod and the push plate are pushed toward the pay-off wheel through the outward elastic force of the first spring. At this time, the positions of the movable plate and the push plate are restored. When the pay-off wheel rotates faster, the coating tube is opened more frequently and the liquid insulating coating material flows out more frequently. Thus, the outflow amount of the liquid insulating coating material is controlled according to the moving speed of the alloy bonding wire, so as to avoid the alloy bonding wire moving too fast and the liquid insulating coating material flowing out too little, which affects the coating effect of the alloy bonding wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 Schematic diagram of the internal structure of the present invention;

[0035] Figure 3 for Figure 2 A is a schematic diagram of the partially enlarged structure;

[0036] Figure 4 for Figure 2 A schematic diagram of the partially enlarged structure of the figure B;

[0037] Figure 5 It is a schematic diagram of the partial structure of the upper side of the present invention;

[0038] Figure 6 Schematic diagram of the connection structure between the film laminating box and the pay-off wheel in the present invention;

[0039] Figure 7 Schematic diagram of the connection structure between the connecting plate and the coating plate in the present invention.

[0040] 1. Bracket; 2. Laminating box; 3. Curing box; 4. Pay-off wheel; 5. Take-up wheel; 6. Feed pipe; 7. Discharge port; 8. Coating plate; 9. Coating tank; 10. Coating tube; 11. Moving plate; 12. Baffle plate; 13. Cylinder; 14. UV curing lamp; 15. Positioning rod; 16. Rotating shaft; 17. Driving motor; 18. Rotating shaft; 19. Worm; 20. Turbine; 21. Pulley; 22. Belt; 23. Cavity; 24. Push rod; 25. Push plate; 26. First spring; 27. Connecting plate; 28. Connecting rod; 29. ​​Fixed plate; 30. Connecting cylinder; 31. Circular limit plate; 32. Positioning plate; 33. Moving rod; 34. Block; 35. Second spring; 36. Buoyancy plate; 37. Limit rod; 38. Rubber scraper; 39. Gravity block; 40. Sliding rod. DETAILED DESCRIPTION

[0041] Reference Figures 1 to 7 .

[0042] Example 1 further illustrates the method for preparing the insulating coated corrosion-resistant alloy bonding wire proposed by the present invention.

[0043] A method for preparing an insulating coated anti-corrosion alloy bonding wire. The method for preparing an insulating coated anti-corrosion alloy bonding wire is implemented by an insulating coated anti-corrosion alloy bonding wire preparation device. The insulating coated anti-corrosion alloy bonding wire preparation device includes: a bracket 1, a coating box 2, a curing box 3, a wire pay-off wheel 4 and a wire take-up wheel 5.

[0044] The film coating box 2 is fixedly connected to the bracket 1, and the bottom of the film coating box 2 is fixedly connected with a feed pipe 6, the upper end of the feed pipe 6 passes through the top of the film coating box 2 and extends to the upper side of the film coating box 2, and at least two discharge ports 7 are provided on the side wall of the lower end of the feed pipe 6. A coating plate 8 is horizontally arranged on the lower side of the film coating box 2, and a coating groove 9 is provided on the coating plate 8. At least two coating tubes 10 are vertically arranged directly above the coating groove 9. The upper end of the coating tube 10 passes through the bottom of the film coating box 2 and is connected to the film coating box 2. The bottom of the film coating box 2 is elastically connected with a horizontally movable The movable plate 11 has at least two baffle plates 12 fixedly connected to the side wall of the movable plate 11, and the baffle plates 12 are inserted in the coating tube 10. A piston is inserted at the top of the feed pipe 6 to facilitate the control of the opening of the feed pipe 6. An arc-shaped notch is provided on the side wall of the coating tank 9 to facilitate the alloy bonding wire to pass through the notch through the coating tank 9. A collecting box is provided on the lower side of the coating plate 8. When the open end of the coating tank 9 rotates downward, it is convenient to collect the excess liquid insulating coating material flowing out of the coating tank 9, and the end of the collecting box is inserted on the outer wall of the coating box 2.

[0045] The curing box 3 is fixedly connected to the side wall of the coating box 2, and a cylinder 13 is rotatably connected to the inner wall of the curing box 3. The two ends of the cylinder 13 pass through the side wall of the curing box 3 and extend to the outside of the curing box 3, and one end of the cylinder 13 is fixedly connected to the coating plate 8. At least two UV curing lamps 14 are fixedly connected to the side wall of the cylinder 13. A plurality of through holes are opened on the cylinder 13. The UV curing lamps 14 are fixedly connected to the side walls of the through holes, so that the cylinder 13 drives the UV curing lamps 14 to rotate, thereby facilitating the annular curing treatment of the liquid insulating coating material attached to the circumferential wall of the alloy bonding wire, thereby avoiding the difficulty in curing the liquid insulating coating material on the circumferential wall of the alloy bonding wire that is away from the UV curing lamps 14.

[0046] The pay-off wheel 4 and the take-up wheel 5 are both rotatably connected to the side wall of the bracket 1, and the pay-off wheel 4 and the take-up wheel 5 are respectively located on both sides of the coating box 2. At least two positioning rods 15 are fixedly connected to the pay-off wheel 4, and the positioning rods 15 are matched with the movable plate 11. The number of the pay-off wheel 4, the take-up wheel 5, the coating plate 8 and the cylinder 13 are all the same, and the positions of the pay-off wheel 4, the take-up wheel 5, the coating plate 8 and the cylinder 13 correspond to each other.

[0047] Both ends of the bracket 1 are rotatably connected to a rotating shaft 16, and the pay-off wheel 4 and the take-up wheel 5 are respectively fixedly connected to the rotating shaft 16 at both ends of the bracket 1. A drive motor 17 is fixedly connected to the bracket 1, and the output shaft of the drive motor 17 is fixedly connected to the end of one of the rotating shafts 16.

[0048] A rotating shaft 18 is rotatably connected to the bracket 1, and the rotating shaft 18 is close to the take-up wheel 5 and parallel to the take-up wheel 5. A worm 19 is fixedly connected to the rotating shaft 18, and a turbine 20 is fixedly connected to the cylinder 13. The turbine 20 is engaged with the worm 19, and the worms 19 on two adjacent cylinders 13 are fixedly connected.

[0049] A pulley 21 is fixedly connected to the rotating shaft 16 and the rotating shaft 18. A belt 22 is sleeved on the pulley 21. The pulley 21 is connected to the rotating rod through the belt 22, so that the rotating shaft 18 drives the multiple worms 19 to rotate.

[0050] A cavity 23 is provided at the bottom of the coating box 2, and the movable plate 11 is slidably connected to the side wall of the cavity 23, and one end of the movable plate 11 is fixedly connected to a push rod 24, one end of the push rod 24 passes through the side wall of the cavity 23 and is fixedly connected to a push plate 25, which cooperates with the positioning rod 15.

[0051] A first spring 26 is fixedly connected to the side wall of the movable plate 11, one end of the first spring 26 is fixedly connected to the side wall of the cavity 23, and a connecting plate 27 is fixedly connected to the end of the movable plate 11, and at least two connecting rods 28 are fixedly connected to the side wall of the connecting plate 27. The connecting rods 28 are fixedly connected to the side wall of the baffle plate 12, and a plurality of grooves are provided on the side wall of the cavity 23. The number of grooves is consistent with the number of the baffle plates 12, and the positions correspond. The baffle plate 12 is located in the groove, so that the connecting plate 27 can drive the baffle plate 12 to move back and forth through the connecting rod 28.

[0052] A fixed plate 29 is fixedly connected to the lower surface of the coating box 2, and a connecting tube 30 is fixedly connected to the end of the coating plate 8 away from the curing box 3. The connecting tube 30 is rotatably connected to the fixed plate 29, and one end of the connecting tube 30 passes through the fixed plate 29 and extends to the side of the fixed plate 29 away from the coating plate 8, so as to facilitate the coating plate 8 to be rotatably connected to the fixed plate 29.

[0053] At least two circular limit plates 31 are fixedly connected to the coating plate 8, and the upper end surface of the circular limit plate 31 contacts a positioning plate 32 that moves up and down. The positioning plate 32 is located between two adjacent coating tubes 10, and the two ends of the positioning plate 32 are fixedly connected to a blocking block 34 through a moving rod 33. The blocking block 34 is located directly below the coating tube 10, and the blocking block 34 is used to block the coating tube 10. The upper surface of the positioning plate 32 is fixedly connected to a second spring 35, and the upper end of the second spring 35 is fixedly connected to the bottom of the coating box 2. An opening is provided on the top of the circular limit plate 31, and the bottom of the opening is fixedly connected to the bottom of the coating plate 8, and the contact part between the circular limit plate 31 and the positioning plate 32 is in a horizontal state. The positioning plate 32 and the blocking block 34 are pushed upward by the rotation of the circular limit plate 31, so that the blocking block 34 is inserted into the coating tube 10 to achieve the closure of the coating tube 10, and the moving rod 33 facilitates the blocking block 34 to move up and down.

[0054] A sliding rod 40 is fixedly connected to the positioning plate 32, and the sliding rod 40 is slidably connected to the outer wall of the coated tube 10. A vertical sliding groove is provided on the outer wall of the coated tube 10, and the sliding rod 40 is slidably connected in the sliding groove, and the sliding rod 40 is in a "Z" shape, so that the two ends of the sliding rod 40 are connected to the sliding groove and the positioning plate 32 respectively. The sliding rod 40 can prevent the positioning plate 32 from shifting in position during the up and down movement, and in the process of the positioning plate 32 driving the blocking block 34 to move upward, it is convenient for the blocking block 34 to be accurately inserted into the coated tube 10.

[0055] The preparation method of the insulating coated corrosion-resistant alloy bonding wire specifically includes the following steps:

[0056] S1: Fix the pay-off wheel 4 wound with the alloy bonding wire on the rotating shaft 16 close to the coating box 2, fix the take-up wheel 5 on the rotating shaft 16 close to the UV curing lamp 14, and pass one end of the alloy bonding wire through the connecting tube 30, the coating tank 9, the cylinder 13 and wind it on the take-up wheel 5.

[0057] S2: injecting the liquid insulating coating material into the coating box 2 through the feed pipe 6, and the liquid insulating coating material flows into the coating tank 9 through the coating pipe 10 to achieve coating treatment of the alloy bonding wire.

[0058] S3: Start the drive motor 17 and the UV curing lamp 14. The output shaft of the drive motor 17 drives the rotating shaft 16, the rotating shaft 18, the pay-off wheel 4, the take-up wheel 5, and the worm 19 to rotate simultaneously through the cooperation of the belt 22 and the pulley 21. The pay-off wheel 4 pays off the alloy bonding wire, and the take-up wheel 5 reels the alloy bonding wire. When the alloy bonding wire passes through the coating tank 9, the liquid insulating coating material in the coating tank 9 adheres to the alloy bonding wire. When the alloy bonding wire with the liquid insulating coating material adhered to the surface of the alloy bonding wire passes through the UV curing lamp 14, the UV curing lamp 14 cures the liquid insulating coating material adhered to the surface of the alloy bonding wire, thereby realizing the coating treatment of the alloy bonding wire.

[0059] S4: When the positioning rod 15 on the pay-off wheel 4 contacts the push plate 25, the rotation of the positioning rod 15 pushes the push plate 25 toward the coating box 2, driving the baffle plate 12 to separate from the coating tube 10, the coating tube 10 opens, and the liquid insulating coating material flows into the coating tank 9 for filling. The faster the pay-off wheel 4 rotates, the more frequently the coating tube 10 is opened, and the more frequently the liquid insulating coating material flows out, thereby realizing the control of the outflow of the liquid insulating coating material according to the moving speed of the alloy bonding wire.

[0060] S5: The rotation of the worm 19 drives the turbine 20 to rotate, which drives the cylinder 13 and the UV curing lamp 14 to rotate. The UV curing lamp 14 cures the liquid insulating coating material covering the circumferential wall of the alloy bonding wire, so as to facilitate uniform curing of the liquid insulating coating material covering the circumferential wall of the alloy bonding wire.

[0061] S6: As the liquid insulating coating material in the coating box 2 decreases, the buoyancy plate 36 drives the limiting rod 37 to move downward. When the liquid insulating coating material in the coating box 2 is used up, the end of the limiting rod 37 away from the buoyancy plate 36 contacts the side wall of the pay-off wheel 4. When the positioning rod 15 contacts the limiting rod 37, the limiting rod 37 blocks the pay-off wheel 4, the rotating shaft 16, and the take-up wheel 5 from continuing to rotate, thereby preventing the take-up wheel 5 from winding up the alloy bonding wire when the alloy bonding wire is not coated with the insulating coating material.

[0062] Working principle: The pay-off wheel 4 wound with the alloy bonding wire is fixed on the rotating shaft 16 close to the coating box 2 by existing technical means such as screws, and the take-up wheel 5 is fixed on the rotating shaft 16 close to the UV curing lamp 14, and one end of the alloy bonding wire is passed through the connecting tube 30, the coating tank 9, the cylinder 13 and wound on the take-up wheel 5.

[0063] The liquid insulating coating material is injected into the coating box 2 through the feed pipe 6, and the liquid insulating coating material flows into the coating tank 9 through the coating pipe 10 to achieve coating treatment of the alloy bonding wire.

[0064] Start the drive motor 17 and the UV curing lamp 14, and the output shaft of the drive motor 17 drives the rotating shaft 16, the rotating shaft 18, the pay-off wheel 4, the take-up wheel 5, and the worm 19 to rotate simultaneously through the cooperation of the belt 22 and the pulley 21. The pay-off wheel 4 pays off the alloy bonding wire, and the take-up wheel 5 reels the alloy bonding wire. When the alloy bonding wire passes through the coating tank 9, the liquid insulating coating material in the coating tank 9 adheres to the alloy bonding wire, and through the engagement of the worm 19 and the turbine 20, the worm 19 drives the turbine 20 to rotate, driving the cylinder 13, the UV curing lamp 14, the coating plate 8, and the circular limit plate 31 to rotate. During the rotation of the coating plate 8, the opening of the coating tank 9 rotates downward, and at the same time, the arc edge of the circular limit plate 31 rotates upward, pushing the positioning plate 32 and the blocking block 34 upward, and the blocking block 34 is inserted into the coating tube 10, thereby achieving the closing of the coating tube 10. Closed, at the same time, the liquid insulating coating material at the bottom of the coating tank 9 flows downward and adheres to the upper surface of the alloy bonding wire, so that the liquid insulating coating material is evenly adhered to the alloy bonding wire. When the alloy bonding wire with the liquid insulating coating material passes through the UV curing lamp 14, due to the rotation of the UV curing lamp 14, the UV curing lamp 14 cures the liquid insulating coating material adhered to the circumferential wall of the alloy bonding wire, thereby realizing the coating treatment of the alloy bonding wire. When the opening of the coating tank 9 is facing upward, the positioning plate 32 is disengaged from the pushing of the arc-shaped side wall of the circular limiting plate 31, and the positioning plate 32 is pushed downward by the downward elastic force of the second spring 35. The positioning plate 32 contacts the horizontal surface of the circular limiting plate 31. At this time, the coating tube 10 is in an open state, and the liquid insulating coating material in the coating tube 10 flows into the coating tank 9.

[0065] When the positioning rod 15 is separated from the push plate 25, the movable plate 11, the push rod 24 and the push plate 25 are pushed toward the direction of the pay-off wheel 4. At this time, the positions of the movable plate 11 and the push plate 25 are restored. When the pay-off wheel 4 rotates faster, the coating tube 10 is opened more frequently, and the liquid insulating coating material flows out more frequently, thereby controlling the outflow of the liquid insulating coating material according to the moving speed of the alloy bonding wire, avoiding that the moving speed of the alloy bonding wire is too fast and the outflow of the liquid insulating coating material is too little, which affects the coating effect of the alloy bonding wire.

[0066] Example 2

[0067] The following technical features are added based on Example 1:

[0068] A preparation method of an insulating film-coated anti-corrosion alloy bonding wire. A buoyancy plate 36 is horizontally arranged in a film coating box 2. A limiting rod 37 is fixedly connected to the buoyancy plate 36. The limiting rod 37 extends to the outside of the film coating box 2 and is matched with a positioning rod 15. The limiting rod 37 is in a "冂" shape, facilitating the end face of the limiting rod 37 far from the buoyancy plate 36 to extend to the side part of the film coating box 2.

[0069] Rubber scraping plates 38 are fixedly connected to the peripheral walls of the buoyancy plate 36. The ends of the rubber scraping plates 38 are in contact with the inner wall of the film coating box 2.

[0070] A gravity block 39 is fixedly connected to the buoyancy plate 36. The gravity value of the gravity block 39 is less than the buoyancy value of the buoyancy plate 36 in the insulating film coating material. Through holes for a feed pipe 6 to pass through are formed in both the buoyancy plate 36 and the gravity block 39, facilitating the up and down movement of the buoyancy plate 36 and the gravity block 39. A positioning line is arranged on the vertical end of the limiting rod 37 located outside the film coating box 2. The distance value between the positioning line and the lower end face of the limiting rod 37 is equal to the sum of the thickness value of the top of the film coating box 2 and the thickness value of the gravity block 39, facilitating the staff to observe the addition situation of the liquid insulating film coating material in the film coating box 2.

[0071] Working principle: Due to the continuous outflow of the liquid insulating film coating material in the film coating box 2, the liquid level of the liquid insulating film coating material in the film coating box 2 decreases continuously. Under the gravity action of the gravity block 39, the buoyancy plate 36 drives the limiting rod 37 and the rubber scraping plates 38 to move downward. The rubber scraping plates 38 scrape the liquid insulating film coating material attached to the inner wall of the film coating box 2 downward, reducing the residual amount of the liquid insulating film coating material on the inner wall of the film coating box 2. When the liquid insulating film coating material in the film coating box 2 is used up, the lower surface of the buoyancy plate 36 contacts the bottom of the film coating box 2. At this time, the end part of the limiting rod 37 far from the buoyancy plate 36 contacts the side wall of a wire pay-off reel 4. When the positioning rod 15 contacts the limiting rod 37, the positioning rod 15 close to a push plate 25 disengages from the push plate 25. The push plate 25 moves away from the film coating box 2 under the elastic force of a first spring 26. A material blocking plate 12 is inserted into a coating pipe 10, and the coating pipe 10 is closed. Due to the blocking of the limiting rod 37, the positioning rod 15 prevents the wire pay-off reel 4, a rotating shaft 16, and a wire take-up reel 5 from continuing to rotate, thus preventing the wire take-up reel 5 from winding the alloy bonding wire when the alloy bonding wire has not been coated with the insulating film coating material.

[0072] When the liquid insulating coating material in the coating box 2 is used up, the staff turns off the drive motor 17, pulls the limit rod 37 upward, and manually pulls out the piston on the feed pipe 6 to inject the liquid insulating coating material into the feed pipe 6, and flows into the coating box 2 through the discharge port 7. As the amount of liquid insulating coating material in the coating box 2 increases, the liquid level of the liquid insulating coating material rises, and the buoyancy plate 36, the limit rod 37, and the gravity block 39 are moved upward. When the positioning line on the limit rod 37 is flush with the upper surface of the top of the coating box 2, it indicates that the liquid insulating coating material in the coating box 2 is full. The staff stops injecting liquid insulating coating material into the coating box 2 and inserts the piston into the feed pipe 6.

[0073] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for preparing an insulating coated corrosion-resistant alloy bonding wire, characterized in that: The method for preparing the insulating film-coated anti-corrosion alloy bonding wire is realized by using an insulating film-coated anti-corrosion alloy bonding wire preparation device, wherein the insulating film-coated anti-corrosion alloy bonding wire preparation device comprises: a bracket (1), a coating box (2), a curing box (3), a pay-off wheel (4) and a take-up wheel (5); The film coating box (2) is fixedly connected to the bracket (1), and the bottom of the film coating box (2) is fixedly connected to a feed pipe (6), the upper end of the feed pipe (6) passes through the top of the film coating box (2) and extends to the upper side of the film coating box (2), and at least two discharge ports (7) are provided on the side wall of the lower end of the feed pipe (6), and a coating plate (8) is horizontally provided on the lower side of the film coating box (2), and a coating plate (8) is provided on the coating plate (8). A trough (9), at least two coating tubes (10) are vertically arranged directly above the coating trough (9), the upper ends of the coating tubes (10) pass through the bottom of the coating box (2) and are connected to the coating box (2), the bottom of the coating box (2) is elastically connected to a horizontally movable movable plate (11), and at least two baffle plates (12) are fixedly connected to the side walls of the movable plate (11), and the baffle plates (12) are inserted into the coating tubes (10); The curing box (3) is fixedly connected to the side wall of the film coating box (2), and a cylinder (13) is rotatably connected to the inner side wall of the curing box (3), and both ends of the cylinder (13) pass through the side wall of the curing box (3) and extend to the outside of the curing box (3), and one end of the cylinder (13) is fixedly connected to the coating plate (8), and at least two UV curing lamps (14) are fixedly connected to the side wall of the cylinder (13); the pay-off wheel (4) and the take-up wheel (5) are both rotatably connected to the side wall of the bracket (1), and the pay-off wheel (4) and the take-up wheel (5) are respectively located on both sides of the film coating box (2), and at least two positioning rods (15) are fixedly connected to the pay-off wheel (4), and the positioning rods (15) cooperate with the movable plate (11); the film coating box (2) A cavity (23) is provided at the bottom of the movable plate (11), the movable plate (11) is slidably connected to the side wall of the cavity (23), and one end of the movable plate (11) is fixedly connected to a push rod (24), one end of the push rod (24) passes through the side wall of the cavity (23) and is fixedly connected to a push plate (25), and the push plate (25) cooperates with the positioning rod (15); a first spring (26) is fixedly connected to the side wall of the movable plate (11), one end of the first spring (26) is fixedly connected to the side wall of the cavity (23), and the end of the movable plate (11) is fixedly connected to a connecting plate (27), and at least two connecting rods (28) are fixedly connected to the side wall of the connecting plate (27), and the connecting rod (28) is fixedly connected to the side wall of the blocking plate (12).

2. The method for preparing an insulating coated corrosion-resistant alloy bonding wire according to claim 1, characterized in that: Both ends of the bracket (1) are rotatably connected to a rotating shaft (16); the pay-off wheel (4) and the take-up wheel (5) are respectively fixedly connected to the rotating shafts (16) at both ends of the bracket (1); a driving motor (17) is fixedly connected to the bracket (1); and an output shaft of the driving motor (17) is fixedly connected to an end of one of the rotating shafts (16); A rotating shaft (18) is rotatably connected to the bracket (1), the rotating shaft (18) is close to and parallel to the take-up wheel (5), a worm (19) is fixedly connected to the rotating shaft (18), and a turbine (20) is fixedly connected to the cylinder (13), and the turbine (20) is meshed with the worm (19).

3. The method for preparing an insulating coated corrosion-resistant alloy bonding wire according to claim 2, wherein: The rotating shaft (16) and the rotating shaft (18) are both fixedly connected with a pulley (21), a belt (22) is sleeved on the pulley (21), and the pulley (21) is connected by transmission through the belt (22).

4. The method for preparing an insulating coated corrosion-resistant alloy bonding wire according to claim 3, characterized in that: A cavity (23) is provided at the bottom of the film coating box (2), the movable plate (11) is slidably connected to the side wall of the cavity (23), and one end of the movable plate (11) is fixedly connected to a push rod (24), one end of the push rod (24) passes through the side wall of the cavity (23) and is fixedly connected to a push plate (25), and the push plate (25) cooperates with the positioning rod (15); A first spring (26) is fixedly connected to the side wall of the movable plate (11), one end of the first spring (26) is fixedly connected to the side wall of the cavity (23), and a connecting plate (27) is fixedly connected to the end of the movable plate (11), at least two connecting rods (28) are fixedly connected to the side wall of the connecting plate (27), and the connecting rods (28) are fixedly connected to the side wall of the blocking plate (12).

5. The method for preparing an insulating coated corrosion-resistant alloy bonding wire according to claim 4, characterized in that: The lower surface of the coating box (2) is fixedly connected to a fixed plate (29), and the end of the coating plate (8) away from the curing box (3) is fixedly connected to a connecting tube (30), and the connecting tube (30) is rotatably connected to the fixed plate (29), and one end of the connecting tube (30) passes through the fixed plate (29) and extends to the side of the fixed plate (29) away from the coating plate (8).

6. The method for preparing an insulating coated corrosion-resistant alloy bonding wire according to claim 5, characterized in that: At least two circular limiting plates (31) are fixedly connected to the coating plate (8), and the upper end surface of the circular limiting plate (31) contacts a positioning plate (32) that moves up and down. The positioning plate (32) is located between two adjacent coating tubes (10), and the two ends of the positioning plate (32) are fixedly connected to a blocking block (34) through a moving rod (33). The blocking block (34) is located directly below the coating tube (10), and the blocking block (34) is used to block the coating tube (10). The upper surface of the positioning plate (32) is fixedly connected to a second spring (35), and the upper end of the second spring (35) is fixedly connected to the bottom of the coating box (2).

7. The method for preparing an insulating coated corrosion-resistant alloy bonding wire according to claim 6, characterized in that: A sliding rod (40) is fixedly connected to the positioning plate (32), and the sliding rod (40) is slidably connected to the outer wall of the coating tube (10).

8. The method for preparing an insulating coated corrosion-resistant alloy bonding wire according to claim 7, characterized in that: A buoyancy plate (36) is horizontally arranged in the film coating box (2), and a limiting rod (37) is fixedly connected to the buoyancy plate (36). The limiting rod (37) extends to the outside of the film coating box (2), and the limiting rod (37) cooperates with the positioning rod (15).

9. The method for preparing an insulating coated corrosion-resistant alloy bonding wire according to claim 8, characterized in that: The four walls of the buoyancy plate (36) are fixedly connected with a rubber scraper (38), and the end of the rubber scraper (38) is in contact with the inner wall of the film coating box (2); A gravity block (39) is fixedly connected to the buoyancy plate (36), and the gravity value of the gravity block (39) is smaller than the buoyancy value of the buoyancy plate (36) in the insulating coating material.

10. The method for preparing an insulating coated corrosion-resistant alloy bonding wire according to claim 9, characterized in that: The method for preparing the insulating coated corrosion-resistant alloy bonding wire specifically comprises the following steps: S1: Fix the pay-off wheel (4) wound with the alloy bonding wire on the rotating shaft (16) close to the coating box (2), fix the take-up wheel (5) on the rotating shaft (16) close to the UV curing lamp (14), and pass one end of the alloy bonding wire through the connecting tube (30), the coating tank (9), the cylinder (13) and wind it on the take-up wheel (5); S2: injecting the liquid insulating coating material into the coating box (2) through the feed pipe (6), and the liquid insulating coating material flows into the coating tank (9) through the coating pipe (10), thereby achieving coating treatment on the alloy bonding wire; S3: starting the driving motor (17) and the UV curing lamp (14); the output shaft of the driving motor (17) drives the rotating shaft (16), the rotating shaft (18), the pay-off wheel (4), the take-up wheel (5), and the worm (19) to rotate simultaneously through the cooperation of the belt (22) and the pulley (21); the pay-off wheel (4) pays off the alloy bonding wire, and the take-up wheel (5) rewinds the alloy bonding wire; when the alloy bonding wire passes through the coating tank (9), the liquid insulating coating material in the coating tank (9) adheres to the alloy bonding wire; when the alloy bonding wire adhered with the liquid insulating coating material passes through the UV curing lamp (14), the UV curing lamp (14) cures the liquid insulating coating material adhered to the surface of the alloy bonding wire, thereby achieving coating treatment of the alloy bonding wire; S4: When the positioning rod (15) on the pay-off wheel (4) contacts the push plate (25), the rotation of the positioning rod (15) pushes the push plate (25) toward the coating box (2), driving the blocking plate (12) to separate from the coating tube (10), the coating tube (10) opens, and the liquid insulating coating material flows into the coating tank (9) for filling. When the pay-off wheel (4) rotates faster, the coating tube (10) opens more frequently, and the liquid insulating coating material flows out more frequently, thereby achieving control of the outflow of the liquid insulating coating material according to the moving speed of the alloy bonding wire; S5: The rotation of the worm (19) drives the turbine (20) to rotate, which drives the cylinder (13) and the UV curing lamp (14) to rotate. The UV curing lamp (14) cures the liquid insulating film material covered on the circumferential wall of the alloy bonding wire, so that the liquid insulating film material covered on the circumferential wall of the alloy bonding wire is cured evenly. S6: As the amount of liquid insulating coating material in the coating box (2) decreases, the buoyancy plate (36) drives the limiting rod (37) to move downward. When the amount of liquid insulating coating material in the coating box (2) is used up, the end of the limiting rod (37) away from the buoyancy plate (36) contacts the side wall of the pay-off wheel (4). When the positioning rod (15) contacts the limiting rod (37), the limiting rod (37) blocks the pay-off wheel (4), the rotating shaft (16) and the take-up wheel (5) from continuing to rotate, thereby preventing the take-up wheel (5) from winding up the alloy bonding wire when the alloy bonding wire is not coated with the insulating coating material.

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