Copper wire shaping system and method for hot-dip tinned copper wire production line

Abstract

The invention relates to the technical field of copper wire processing, and in particular to a copper wire shaping system and method for a hot-dip tinned copper wire production line, comprising a processing chamber, a partition, a cleaning unit and an execution unit; the invention can solve the following problems existing in the prior art in shaping tinned copper wires: guiding the copper wires by guide wheels is prone to hard contact with the copper wires, resulting in damage to the tin layer; the tin layer of the copper wire is prone to deformation or cracking when subjected to rolling force before cooling, thereby failing to ensure the integrity of the tin layer after cooling; the temperature of circulating water for cooling the copper wires will gradually increase and fail to play a cooling role, thereby affecting the cooling effect; the invention does not contact the outside world during the tinning and cooling of the copper wires, thereby avoiding defects such as deformation and cracking of the tin layer due to hard contact, thereby ensuring the integrity of the tin layer, and by cooling the tin layer twice, rapid cooling of the tin layer can be achieved to ensure the cooling effect.

Description

Technical Field

[0001] The invention relates to the technical field of copper wire processing, and in particular to a copper wire shaping system and method for a hot-dip tinned copper wire production line. Background Art

[0002] Tinning of copper wire refers to copper wire coated with a metallic tin layer on its surface. Tinned copper wire is relatively soft and has good conductivity. Compared with bare copper wire, it has stronger corrosion resistance and oxidation resistance, which can greatly extend the service life of weak-current cables. Tinning of copper wire is to immerse the copper wire in a tinning solution and heat the tinning solution to a certain temperature so that the tin ions are reduced to metallic tin on the surface of the copper wire to form a uniform tin layer.

[0003] Tinning the surface of copper wire can improve the mechanical strength of the copper wire and enhance its wear resistance and corrosion resistance. After tinning the surface of the copper wire, the tin layer needs to be shaped to improve the mechanical strength of the wire, fix the coating, improve the conductivity, and ensure the dimensional stability of the wire. Usually, the copper wire needs to be cooled after hot-dip tinning so that the tin layer on the surface of the copper wire can solidify quickly to prevent it from falling off.

[0004] In the prior art, a large number of galvanized copper wire shaping and corresponding devices are also disclosed. Among them, a Chinese patent with publication number CN219786003U discloses a copper wire shaping device for tinned copper wire production, including a fixed plate, a bracket is fixedly connected to the lower surface of the fixed plate, a water tank is fixedly connected to one side of the inner bottom wall of the bracket, a water pump is fixedly connected to one side of the inner bottom wall of the water tank, and a fixed pipe is fixedly connected to the output end of the water pump; a shunt pipe is fixedly connected to one end of the fixed pipe, a water outlet pipe is fixedly connected to the lower surface of the shunt pipe, a flow guide cover is fixedly connected to the upper surface of the fixed plate near the water outlet pipe, connecting plates are clamped on both sides of the upper surface of the water tank, and a net bucket is fixedly connected to the outer surface of the connecting plate.

[0005] When the above-mentioned prior art is in use, the motor drives the air roller to rotate to reel the copper wire, and then the distance between the second roller and the first roller is changed. The heat generated by the multiple heating tubes after being energized evenly heats the copper wire. The guide wheel prevents the copper wire from being displaced during the shaping process. The first roller and the second roller have a shaping effect. The heated copper wire is cooled by water through multiple water outlet pipes to avoid extrusion deformation caused by direct reeling of the copper wire at a high temperature. The net bucket filters and collects the debris generated during rolling and shaping, so that the cooling water can be recycled.

[0006] However, in the process of shaping the tinned copper wire using the above-mentioned prior art, there are still the following shortcomings:

[0007] 1. In the above-mentioned prior art, the tinned copper wire is heated before being water-cooled. During the heating process, the copper wire is guided by a guide wheel, so that direct contact occurs between the copper wire and the guide wheel. Therefore, the guide wheel is easy to rub against the copper wire and scrape off the tin layer, thereby causing damage to the tin layer on the surface of the copper wire, thereby affecting various performances of the copper wire.

[0008] 2. Since the above-mentioned prior art uses the first roller and the second roller to roll and shape the tinned copper wire before cooling, and the tin layer on the surface of the copper wire has a certain brittleness and poor toughness when it is not cooled, the tin layer on the surface of the copper wire is unevenly stressed when the copper wire is subjected to the rolling force and is prone to deformation or cracking, thereby failing to ensure the integrity of the tin layer after cooling, further affecting the performance of the copper wire.

[0009] 3. In addition, the above-mentioned prior art cools the tinned copper wire by water cooling, and the water needs to be circulated. After the water contacts the copper wire, its own temperature will increase. Therefore, after the water is circulated for many times, its own temperature will increase and it will not be able to play a cooling role, thereby affecting the cooling effect, causing the tin layer on the surface of the copper wire to fail to cool in time and miss the best shaping time, which in turn causes the tin layer to be uneven, poorly adhered, unstable and easy to fall off, and cracks or deformation.

[0010] Therefore, based on the above-stated viewpoints, there is still room for improvement in the shaping method of tinned copper wire in the prior art. Summary of the invention

[0011] In order to solve the above problems, the present invention provides a copper wire shaping system for a hot-dip tinned copper wire production line, comprising a processing chamber, wherein the processing chamber is an L-shaped structure, the horizontal section of the processing chamber is a cleaning area for cleaning the copper wire, and the inner wall of the vertical section of the processing chamber is provided with two partitions arranged up and down, a processing area for tinning the copper wire is formed between the processing chamber and the two partitions, and a cooling area is formed between the top wall of the processing chamber and the upper partition.

[0012] A cleaning unit is arranged inside the cleaning area of ​​the processing chamber, and an execution unit for heating the tinning liquid and cooling the tinned copper wire is installed on the processing chamber, and the execution unit is located inside the processing area.

[0013] As a preferred technical solution of the present invention, the cleaning unit includes a through hole opened on the side of the horizontal section of the processing chamber away from the vertical section, there are multiple through holes corresponding to the positions of the guide wheels, and a wiping sponge for cleaning the copper wire is arranged between the upper and lower side walls of the horizontal section of the processing chamber through a support block.

[0014] As a preferred technical solution of the present invention, the support blocks and wiping sponges are divided into two groups. The support blocks and wiping sponges on the side away from the vertical section of the processing chamber are arranged horizontally, and the support blocks and wiping sponges on the side close to the vertical section of the processing chamber are arranged vertically, and the wiping sponges are arranged symmetrically along the copper wire.

[0015] As a preferred technical solution of the present invention, a liquid storage cavity is provided inside the support block, the support block is connected to the wiping sponge through the liquid storage cavity, and multiple support blocks outside the same copper wire are connected through a connecting tube.

[0016] As a preferred technical solution of the present invention, the execution unit includes a storage chamber installed on the top of the horizontal section of the processing chamber, a liquid inlet is opened at the upper end of the storage chamber, and a water pump is installed at the upper end of the storage chamber, the water inlet end of the water pump extends to the interior of the storage chamber, and the water outlet end of the water pump extends to the interior of the processing area between the two partitions.

[0017] As a preferred technical solution of the present invention, the execution unit further comprises an electric heating block installed inside the processing area, and a heat conducting plate abutting against the electric heating block is provided on the inner side wall of the processing area;

[0018] Two gas supply channels are symmetrically installed on the outer wall of the vertical section of the processing chamber along the width direction. Two first air pumps are arranged at the lower end of the gas supply channel. Multiple exhaust pipes corresponding to the positions of the guide wheels are installed on the gas supply channel. The end of the exhaust pipe away from the gas supply channel passes through the processing area and the upper partition in turn and then extends to the cooling area.

[0019] As a preferred technical solution of the present invention, the partition is provided with a plurality of threading holes corresponding to the positions of the guide wheels, and an annular sealing plug sleeved on the outer wall of the copper wire is installed on the top of the partition located at the lower side of the processing chamber.

[0020] As a preferred technical solution of the present invention, the inner wall of the processing chamber is located between the cleaning area and the processing area and is provided with a plurality of guide wheels corresponding to the positions of the through holes through a rotating shaft sleeve, and the diameter of the guide wheels gradually increases from the middle to the two ends.

[0021] As a preferred technical solution of the present invention, a plurality of guide cylinders corresponding to the positions of the guide wheels are installed at the upper end of the processing chamber, the bottom of the guide cylinders extends into the cooling zone, an air inlet groove is provided at the bottom of the guide cylinders, and an annular hollow groove for cooling the copper wire is provided inside the guide cylinders.

[0022] In addition, the present invention also provides a copper wire shaping method for a hot-dip tinned copper wire production line, comprising the following steps:

[0023] S1: copper wire insertion: firstly, the copper wire to be processed passes through the cleaning unit and the execution unit in sequence;

[0024] S2: Copper wire cleaning: The copper wire is cleaned by a cleaning unit;

[0025] S3: Tinning of copper wire: Add tinning liquid into the treatment area and heat it, and then perform tinning treatment on the copper wire after it passes through the treatment area;

[0026] S4: Cooling of tin layer: Cooling of the tin layer on the surface of the tinned copper wire is performed through the execution unit.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The present invention uses a wiping sponge to carry an acidic solution to fully wipe and clean the surface of the copper wire, which can remove oxides on the surface of the copper wire to increase the activity of the surface of the copper wire, thereby improving the stability and adhesion of the tin layer produced after tin plating and preventing the tin layer from falling off.

[0029] 2. The present invention forms a tin layer on the surface of the copper wire by passing the copper wire through the heated tin plating liquid, then pulls the tinned copper wire into the cooling zone, and then discharges the external air into the cooling zone through the first air pump to perform a preliminary cooling treatment on the tin layer on the surface of the copper wire, and then cools the tin layer on the surface of the copper wire again through cold air to achieve rapid cooling of the tin layer, so as to improve the tin plating effect of the copper wire and the stability of the tin layer.

[0030] 3. The present invention can control the copper wire passing through the treatment area to maintain a vertical state so that the gravity of the tin plating liquid on its surface is equal, thereby ensuring that the thickness of the tin layer on the surface of the copper wire is equal, thereby preventing the copper wire from tilting and causing the tin layer thickness on its surface to be uneven.

[0031] Fourth, the present invention will not come into contact with the outside world during the tinning and cooling of the copper wire, thereby preventing the tin layer on the surface of the copper wire from being deformed, cracked, or other defects due to hard contact or extrusion, thereby ensuring the integrity of the tin layer, and the air discharged from the outside can be blown into the air inlet groove and then discharged into the annular hollow groove, thereby extending the cooling time of the copper wire, and the cooling effect of the tin layer can be enhanced by continuously discharging air into the annular hollow groove.

[0032] 5. The present invention can drive the rubber roller pressure ball to perform circumferential and all-round rolling and shaping treatment on the tin layer that has been initially cooled and not completely solidified through the rolling wheel, so as to ensure that the tin layer is tightly attached to the surface of the copper wire and will not fall off at will, and can ensure that the thickness of the tin layer on the surface of the copper wire is equal; in addition, the rubber roller pressure ball can prevent the rolling wheel from scratching the tin layer on the surface of the copper wire and causing damage, and the rubber roller pressure ball can avoid hard contact with the tin layer and causing damage to the tin layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0034] Figure 1 It is a structural schematic diagram of the present invention.

[0035] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0036] Figure 3 The present invention Figure 2 A partial enlarged view of point A.

[0037] Figure 4 It is a schematic diagram of the structure between the guide cylinder, the second air pump and the cooler of the present invention.

[0038] Figure 5 The present invention Figure 4 A partial enlarged view of point B.

[0039] Figure 6 It is a schematic diagram of the structure between the guide cylinder and the shaping unit of the present invention.

[0040] Figure 7 It is a schematic diagram of the structure among the bracket, the positioning frame and the roller pressing wheel of the present invention.

[0041] Figure 8 The present invention Figure 7 A partial enlarged view of point C.

[0042] In the figure, 1. processing chamber; 11. rotating shaft; 12. guide wheel; 13. guide cylinder; 131. air storage chamber; 132. air outlet; 14. annular hollow groove; 15. second air pump; 16. cooler; 2. partition; 21. annular sealing plug; 3. cleaning unit; 31. support block; 32. wiping sponge; 4. execution unit; 41. storage chamber; 42. liquid inlet; 43. water pump; 44. electric heating block; 45. heat conducting plate; 46. air transmission channel; 47. first air pump; 48. exhaust pipe; 5. shaping unit; 51. annular support bracket; 52. annular gear ring; 53. motor; 54. support shaft; 55. driving gear; 56. annular pad; 57. bracket; 58. positioning frame; 59. roller wheel; 60. roller; 61. rubber roller pressure ball; 7. copper wire. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-Figure 8 While embodiments of the invention have been described in detail, the invention can be implemented in many different ways as defined and covered by the claims.

[0044] The embodiment of the present application discloses a copper wire shaping system for a hot-dip tinned copper wire production line, which explains that the copper wire shaping system for the hot-dip tinned copper wire production line is mainly used in the process of tinning the copper wire 7. In terms of technical effect, the copper wire 7 can be cleaned, tinned and cooled in sequence, and can be processed by batch production line to improve work efficiency. In particular, during the cooling process of the tin layer on the surface of the copper wire 7, the tin layer on the surface of the copper wire 7 can be cooled twice to achieve rapid cooling of the tin layer, so as to improve the tinning effect and stability of the copper wire 7, and the copper wire 7 will not contact the outside world during the tinning and cooling period, thereby preventing the tin layer on the surface of the copper wire 7 from being deformed, cracked, and other defects due to hard contact or extrusion; further, the copper wire shaping system for the hot-dip tinned copper wire production line can also perform roller shaping on the tin layer on the surface of the copper wire 7 after preliminary cooling, so as to ensure that the tin layer is tightly attached to the surface of the copper wire 7 and will not fall off at will, and can ensure that the thickness of the tin layer on the surface of the copper wire 7 is equal. Example

[0045] Reference Figure 1 As shown, a copper wire shaping system of a hot-dip tinned copper wire production line includes a processing chamber 1, which is an L-shaped structure. The horizontal section of the processing chamber 1 is a cleaning area for cleaning the copper wire 7, and the inner wall of the vertical section of the processing chamber 1 is provided with two partitions 2 arranged up and down. A processing area for tinning the copper wire 7 is formed between the processing chamber 1 and the two partitions 2, and a cooling area is formed between the top wall of the processing chamber 1 and the upper partition 2.

[0046] Furthermore, in this embodiment, a cleaning unit 3 is provided inside the cleaning area of ​​the processing chamber 1, and an execution unit 4 for heating the tinning liquid and cooling the tinned copper wire 7 is installed on the processing chamber 1, and the execution unit 4 is located inside the processing area.

[0047] In the specific implementation process, the copper wire 7 to be processed is first passed through the cleaning area, and then the copper wire 7 is passed through the processing area between the two partitions 2, so that the cleaning unit 3 cleans the copper wire 7, and then the execution unit 4 tins the surface of the copper wire 7. Subsequently, the tinned copper wire 7 passes through the cooling area for cooling, so that the tin layer on the surface of the copper wire 7 is cooled and shaped, and the stability of the tin layer can be ensured, and the copper wire 7 can be processed through a batch production line to improve work efficiency.

[0048] Reference Figure 1 , Figure 2 and Figure 3As shown, in order to improve the stability and adhesion of the tin layer on the surface of the copper wire 7, it is necessary to remove the oxide on its surface before tinning. Based on this, a cleaning unit 3 is provided in this embodiment. Specifically, the cleaning unit 3 includes a through hole opened on the side of the horizontal section of the processing chamber 1 away from the vertical section. The through holes have multiple holes and correspond to the positions of the guide wheels 12. A wiping sponge 32 for cleaning the copper wire 7 is arranged between the upper and lower side walls of the horizontal section of the processing chamber 1 through a support block 31.

[0049] Furthermore, in order to be able to comprehensively clean the copper wire 7, in the present embodiment, the support block 31 and the wiping sponge 32 are two groups, the support block 31 and the wiping sponge 32 on the side of the vertical section away from the processing chamber 1 are horizontally arranged, and the support block 31 and the wiping sponge 32 on the side of the vertical section close to the processing chamber 1 are vertically arranged, and the wiping sponges 32 are symmetrically arranged along the copper wire 7.

[0050] Furthermore, in order to improve the cleaning effect of the copper wire 7, in this embodiment, a liquid storage cavity is opened inside the support block 31, and the support block 31 is connected to the wiping sponge 32 through the liquid storage cavity, and multiple support blocks 31 on the outside of the same copper wire 7 are connected through a connecting tube; before cleaning the copper wire 7, an acidic solution for cleaning the copper wire 7 is injected into the liquid storage cavity, and the acidic solution is immersed in the wiping sponge 32, so that the wiping sponge 32 carries the acidic solution to wipe and clean the copper wire 7.

[0051] In the specific implementation process, when the copper wire 7 passes through the cleaning area, the copper wire 7 is passed through two vertically arranged wiping sponges 32 and two horizontally arranged wiping sponges 32 in turn, so that the surface of the copper wire 7 is fully wiped and cleaned by the acidic solution carried by the wiping sponge 32; thereby, the oxide on the surface of the copper wire 7 can be removed, thereby increasing the activity of the surface of the copper wire 7, and improving the stability and adhesion of the tin layer produced after tin plating, and preventing the tin layer from falling off.

[0052] Reference Figure 2 As shown, in order to improve the tinning effect of the copper wire 7 and the stability of the tin layer on the surface of the copper wire 7, in this embodiment, the execution unit 4 includes a storage chamber 41 installed on the top of the horizontal section of the processing chamber 1, and a liquid inlet 42 is opened at the upper end of the storage chamber 41, and a water pump 43 is installed at the upper end of the storage chamber 41, and the water inlet end of the water pump 43 extends to the inside of the storage chamber 41, and the water outlet end of the water pump 43 extends to the inside of the processing area between the two partitions 2; before the copper wire 7 is tinned, the tinning liquid is injected into the storage chamber 41, and then the water pump 43 is started, and the water pump 43 discharges the tinning liquid into the processing area, so that the tinning process can be completed when the copper wire 7 passes through the processing area.

[0053] Furthermore, in this embodiment, a plurality of threading holes corresponding to the positions of the guide wheels 12 are opened on the partition 2, and an annular sealing plug 21 sleeved on the outer wall of the copper wire 7 is installed on the top of the partition 2 located on the lower side of the processing chamber 1; the annular sealing plug 21 can prevent the tin plating liquid in the processing area from seeping downward from the threading holes of the lower partition 2, thereby avoiding the loss of the tin plating liquid.

[0054] Continue to refer to Figure 2 As shown, in order to perform hot-dip tinning on the copper wire 7, the tinning liquid needs to be heated. Based on this, the execution unit 4 also includes an electric heating block 44 installed inside the processing area, and the inner side wall of the processing area is provided with a heat conducting plate 45 abutting against the electric heating block 44. The heat of the electric heating block 44 is conducted through the heat conducting plate 45 to heat the tinning liquid in the processing area.

[0055] Furthermore, in order to quickly cool the tin layer on the surface of the copper wire 7, in the present embodiment, two gas supply channels 46 are symmetrically installed on the outer wall of the vertical section of the processing chamber 1 along the width direction, two first air pumps 47 are arranged at the lower end of the gas supply channel 46, and a plurality of exhaust pipes 48 corresponding to the position of the guide wheel 12 are installed on the gas supply channel 46, and one end of the exhaust pipe 48 away from the gas supply channel 46 passes through the processing area and the upper partition 2 in sequence and then extends to the cooling area.

[0056] In the specific implementation process, the electric heating block 44 is first started, and the electric heating block 44 heats the tin plating liquid in the treatment area. Then, the cleaned copper wire 7 passes through the treatment area, so that the copper wire 7 is hot-dip tinned, so that the tin plating liquid adheres to the surface of the copper wire 7 and forms a tin layer; then, the tinned copper wire 7 is pulled up, so that the copper wire 7 moves up to the cooling zone, and then the first air pump 47 is started. The first air pump 47 inhales external air and discharges it into the cooling zone through the exhaust pipe 48, thereby performing a preliminary cooling treatment on the tin layer on the surface of the copper wire 7, so as to facilitate the shaping of the tin layer on the surface of the copper wire 7 and improve the adhesion and stability of the tin layer.

[0057] Reference Figure 1 and Figure 2 As shown, in order to prevent the copper wire 7 from bending when passing through the execution unit 4 and affecting the tinning effect, in this embodiment, the inner wall of the processing chamber 1 is located between the cleaning area and the processing area and is provided with a plurality of guide wheels 12 corresponding to the positions of the through holes through a rotating shaft 11, and the diameter of the guide wheel 12 gradually increases from the middle to the two ends.

[0058] In the specific implementation process, after passing through the cleaning area, the copper wire 7 bypasses the guide wheel 12 and then passes upward through the processing area. The guide wheel 12 can keep the copper wire 7 passing through the processing area in a vertical state. Since the tin plating liquid will flow downward under the influence of gravity, and the tin plating liquid on the surface of the vertical copper wire 7 is subjected to equal gravity, it can ensure that the thickness of the tin layer on the surface of the copper wire 7 is equal, thereby preventing the copper wire 7 from tilting and causing uneven thickness of the tin layer on its surface, thereby achieving the shaping of the tin layer on the surface of the copper wire 7.

[0059] Continue to refer to Figure 2 As shown, in order to further improve the cooling effect of the copper wire 7, in this embodiment, a plurality of guide cylinders 13 corresponding to the positions of the guide wheels 12 are installed at the upper end of the processing chamber 1, and the bottom of the guide cylinder 13 extends into the cooling zone. An air inlet groove is provided at the bottom of the guide cylinder 13, and an annular hollow groove 14 for cooling the copper wire 7 is provided inside the guide cylinder 13.

[0060] In the specific implementation process, the copper wire 7 passing through the cooling zone is further pulled up and passed through the guide cylinder 13. The guide cylinder 13 can ensure that the copper wire 7 remains in a vertical state, thereby preventing the copper wire 7 from having a hard contact with the outside world and avoiding damage to the tin layer, thereby ensuring the integrity of the tin layer. At this time, the air discharged into the cooling zone is blown into the air inlet groove and then discharged into the annular hollow groove 14, thereby extending the cooling time of the copper wire 7, and the cooling effect on the tin layer can be enhanced by continuously discharging air into the annular hollow groove 14. Example

[0061] Reference Figure 4 and Figure 5 As shown, on the basis of Example 1, in order to further improve the stability of the tin layer, it is necessary to quickly cool the tin layer. Based on this, in this embodiment, a plurality of second air pumps 15 evenly distributed along the circumference of the guide cylinder 13 are installed on the top of the vertical section of the processing chamber 1, and a plurality of coolers 16 corresponding to the position of the guide cylinder 13 are installed on the top of the vertical section of the processing chamber 1, the air inlet end of the second air pump 15 is connected to the cooler 16, a plurality of air storage cavities 131 are opened inside the guide cylinder 13, and a plurality of air outlets 132 are opened at equal intervals from top to bottom on one side of the air storage cavity 131 close to the annular hollow groove 14, and the air outlet end of the second air pump 15 is connected to the air storage cavity 131.

[0062] It should be noted that the cooler 16 used in this embodiment is a prior art, which is mainly used to cool the air so that the air pumped out by the second air pump 15 is cooled cold air.

[0063] In the specific implementation process, the second air pump 15 and the cooler 16 are started, the second air pump 15 draws cold air from the cooler 16 and discharges it into the air storage cavity 131, and then the cold air is discharged into the annular hollow groove 14 through the air outlet 132, so that the cold air cools the tin layer on the surface of the copper wire 7 again, and can achieve rapid cooling of the tin layer, thereby improving the cooling speed and cooling effect of the tin layer.

[0064] In addition, the copper wire 7 will not come into contact with the outside world during the tinning and cooling period, thereby preventing the tin layer on the surface of the copper wire 7 from being deformed, cracked, or other defects due to hard contact or extrusion. Example

[0065] Reference Figure 6 , Figure 7 and Figure 8 As shown, on the basis of Example 2, in order to further ensure the adhesion between the tin layer and the surface of the copper wire 7, prevent the tin layer from falling off, and make the thickness of the tin layer equal, a shaping unit 5 is provided in this embodiment; specifically, annular grooves are provided on the upper and lower side walls of the annular hollow groove 14, and an annular support bracket 51 is rotatably arranged inside the annular groove, and annular gear rings 52 are installed on opposite sides of the two annular support brackets 51, and the annular gear rings 52 can be supported by the annular support brackets 51 to prevent the annular gear rings 52 from falling, and a motor 53 is arranged inside the guide cylinder 13 through the mounting groove, and the output shaft of the motor 53 is connected to the support shaft 54, and the outer wall of the support shaft 54 ​​is provided with two driving gears 55 respectively meshing with the annular gear rings 52.

[0066] Furthermore, in this embodiment, annular pads 56 are installed on opposite sides of the two annular gear rings 52, and multiple annularly distributed brackets 57 are evenly arranged on opposite sides of the two annular pads 56. Multiple positioning frames 58 are equidistantly sleeved on the outer walls of the brackets 57 from top to bottom, and the positioning frames 58 on the outer walls of two adjacent brackets 57 are staggered. A longitudinally arranged roller wheel 59 is rotatably provided on one side of the bracket 57 close to the axis of the annular hollow groove 14.

[0067] In the specific implementation process, the copper wire 7 after preliminary cooling passes through the annular hollow groove 14 and passes between multiple rollers 59. When the copper wire 7 is cooled again, the motor 53 is started, and the motor 53 drives the driving gear 55 to rotate through the support shaft 54. The driving gear 55 drives the annular pad 56 to rotate through the annular gear ring 52. The annular pad 56 drives the bracket 57, the positioning frame 58 and the roller 59 to move circumferentially along the copper wire 7. During this period, the tin layer that has been initially cooled is not completely solidified, and the tin layer is not a flowable viscous flow. Therefore, the tin layer on the surface of the copper wire 7 can be subjected to circumferential and all-round rolling and shaping treatment by the roller 59 to ensure that the tin layer is tightly attached to the surface of the copper wire 7 and will not fall off at will. In addition, it can ensure that the thickness of the tin layer on the surface of the copper wire 7 is equal.

[0068] It should be noted that the outer wall of the rolling wheel 59 is evenly rotated with a plurality of annularly distributed rollers 60, and the outer wall of the roller 60 is rotatably installed with a plurality of rubber roller pressure balls 61; therefore, when the rolling wheel 59 drives the rubber roller pressure balls 61 to roll the tin layer through the rollers 60, the rubber roller pressure balls 61 can offset the relative slip between the copper wire 7 and the roller 60 when the copper wire 7 moves up, thereby preventing the rolling wheel 59 from scratching the tin layer on the surface of the copper wire 7 and causing damage, and the rubber roller pressure balls 61 can avoid hard contact with the tin layer and causing damage to the tin layer.

[0069] In addition, the present invention also provides a copper wire shaping method for a hot-dip tinned copper wire production line, comprising the following steps:

[0070] S1: Copper wire insertion: First, the copper wire 7 is passed between two vertically arranged wiping sponges 32 and two horizontally arranged wiping sponges 32 in turn, and then the copper wire 7 is passed around the guide wheel 12 and passed through the processing area between the two partitions 2. The guide wheel 12 can keep the copper wire 7 passing through the processing area in a vertical state, and then the end of the copper wire 7 is wound on an external winding device.

[0071] S2: Copper wire cleaning: The surface of the copper wire 7 is fully wiped and cleaned by wiping sponge 32 with an acidic solution, thereby removing oxides on the surface of the copper wire 7, thereby increasing the activity of the surface of the copper wire 7, improving the stability and adhesion of the tin layer produced after tin plating, and preventing the tin layer from falling off.

[0072] S3: tinning of copper wire: start the electric heating block 44, which heats the tinning liquid in the treatment area, and then the cleaned copper wire 7 passes through the treatment area, so that the copper wire 7 is hot-dip tinned, so that the tinning liquid adheres to the surface of the copper wire 7 and forms a tin layer; since the tinning liquid will flow downward under the influence of gravity, and the tinning liquid on the surface of the vertical copper wire 7 is subjected to equal gravity, it can ensure that the thickness of the tin layer on the surface of the copper wire 7 is equal.

[0073] S4: Cooling of the tin layer: The tinned copper wire 7 is pulled up by an external winding device, so that the copper wire 7 moves up to the cooling zone, and then the first air pump 47 is started. The first air pump 47 discharges external air into the cooling zone, thereby performing a preliminary cooling treatment on the tin layer on the surface of the copper wire 7, so as to facilitate shaping of the tin layer on the surface of the copper wire 7; then the copper wire 7 passing through the cooling zone is further pulled up and passes through the guide cylinder 13. At this time, the air discharged into the cooling zone is blown into the air inlet groove and then discharged into the annular hollow groove 14, so that the cooling time of the copper wire 7 can be extended to enhance the cooling effect on the tin layer.

[0074] The second air pump 15 and the cooler 16 are started, and the second air pump 15 draws cold air from the cooler 16 and discharges it into the air storage cavity 131, and then the cold air is discharged into the annular hollow groove 14 through the air outlet 132, so that the cold air cools the tin layer on the surface of the copper wire 7 again, and can achieve rapid cooling of the tin layer, thereby improving the cooling speed and cooling effect of the tin layer.

[0075] In addition, the present application can also shape the tin layer during the cooling process, as follows: when the copper wire 7 is cooled again, the motor 53 is started, and the motor 53 drives the driving gear 55 to rotate through the support shaft 54, and the driving gear 55 drives the annular pad 56 to rotate through the annular gear ring 52, and the annular pad 56 drives the bracket 57, the positioning frame 58 and the roller wheel 59 to move circumferentially along the copper wire 7; the roller wheel 59 drives the rubber roller ball 61 through the roller 60 to perform circumferential and all-round rolling and shaping treatment on the tin layer to ensure that the tin layer is tightly attached to the surface of the copper wire 7 and will not fall off at will, and can ensure that the thickness of the tin layer on the surface of the copper wire 7 is equal. In addition, the rubber roller ball 61 can avoid hard contact with the tin layer and cause damage to the tin layer.

[0076] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0077] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A copper wire shaping system for a hot-dip tinned copper wire production line, comprising a processing chamber (1), characterized in that: The processing chamber (1) is an L-shaped structure. The horizontal section of the processing chamber (1) is a cleaning area for cleaning the copper wire (7). The inner wall of the vertical section of the processing chamber (1) is provided with two partitions (2) arranged up and down. A processing area for tinning the copper wire (7) is formed between the processing chamber (1) and the two partitions (2). A cooling area is formed between the inner top wall of the processing chamber (1) and the upper partition (2), wherein: A cleaning unit (3) is arranged inside the cleaning area of ​​the processing chamber (1); an execution unit (4) for heating the tinning liquid and cooling the copper wire (7) after tinning is installed on the processing chamber (1); the execution unit (4) is located inside the processing area; The execution unit (4) comprises a storage chamber (41) installed at the top of the horizontal section of the processing chamber (1), a liquid inlet (42) is provided at the upper end of the storage chamber (41), and a water pump (43) is installed at the upper end of the storage chamber (41), a water inlet end of the water pump (43) extends into the interior of the storage chamber (41), and a water outlet end of the water pump (43) extends into the interior of the processing area between the two partitions (2); The execution unit (4) further comprises an electric heating block (44) installed inside the processing area, and a heat conducting plate (45) abutting against the electric heating block (44) is provided on the inner side wall of the processing area; Two gas delivery channels (46) are symmetrically installed on the outer wall of the vertical section of the processing chamber (1) along the width direction, two first air pumps (47) are arranged at the lower end of the gas delivery channel (46), a plurality of exhaust pipes (48) corresponding to the positions of the guide wheels (12) are installed on the gas delivery channel (46), and one end of the exhaust pipe (48) away from the gas delivery channel (46) passes through the processing area and the upper baffle (2) in sequence and then extends into the cooling area; The inner wall of the processing chamber (1) is located between the cleaning area and the processing area and is sleeved with a plurality of guide wheels (12) corresponding to the positions of the through holes through a rotating shaft (11), wherein the diameter of the guide wheels (12) gradually increases from the middle to both ends; A plurality of guide cylinders (13) corresponding to the positions of the guide wheels (12) are installed at the upper end of the processing chamber (1), the bottom of the guide cylinder (13) extends into the cooling zone, an air inlet groove is provided at the bottom of the guide cylinder (13), and an annular hollow groove (14) for cooling the copper wire (7) is provided inside the guide cylinder (13); After preliminary cooling, the copper wire (7) passes through the annular hollow groove (14) and passes between a plurality of roller pressing wheels (59). When the copper wire (7) is subjected to further cooling, the motor (53) is started, and the motor (53) drives the driving gear (55) to rotate through the support shaft (54). The driving gear (55) drives the annular pad (56) to rotate through the annular gear ring (52). The annular pad (56) drives the bracket (57), the positioning frame (58) and the roller pressing wheel (59) to move circumferentially along the copper wire (7). The roller pressing wheel (59) can perform circumferential and all-round roller pressing and shaping processing on the tin layer on the surface of the copper wire (7).

2. The copper wire shaping system for a hot-dip tinned copper wire production line according to claim 1, characterized in that: The cleaning unit (3) comprises a through hole opened on a side of the horizontal section of the processing chamber (1) away from the vertical section, the through holes being multiple and equidistantly distributed along the length direction of the processing chamber (1), and a wiping sponge (32) for cleaning the copper wire (7) is provided between the upper and lower side walls of the horizontal section of the processing chamber (1) via a support block (31).

3. The copper wire shaping system of a hot-dip tinned copper wire production line according to claim 2, characterized in that: The support blocks (31) and the wiping sponges (32) are in two groups. The support blocks (31) and the wiping sponges (32) on the side away from the vertical section of the processing chamber (1) are arranged horizontally, and the support blocks (31) and the wiping sponges (32) on the side close to the vertical section of the processing chamber (1) are arranged vertically. The wiping sponges (32) are symmetrically arranged along the copper wire (7).

4. The copper wire shaping system for a hot-dip tinned copper wire production line according to claim 3, characterized in that: A liquid storage cavity is provided inside the support block (31), and the support block (31) is connected to the wiping sponge (32) via the liquid storage cavity. Multiple support blocks (31) outside the same copper wire (7) are connected via a connecting pipe.

5. The copper wire shaping system for a hot-dip tinned copper wire production line according to claim 1, characterized in that: The partition plate (2) is provided with a plurality of threading holes corresponding to the positions of the guide wheels (12), and an annular sealing plug (21) sleeved on the outer wall of the copper wire (7) is installed on the top of the partition plate (2) located at the lower side of the processing chamber (1).

6. A copper wire shaping method for a hot-dip tinned copper wire production line, comprising a copper wire shaping system for a hot-dip tinned copper wire production line according to any one of claims 1 to 5, characterized in that: The finalization method includes the following steps: S1: copper wire insertion: firstly, the copper wire to be processed (7) is passed through the cleaning unit (3) and the execution unit (4) in sequence; S2: Copper wire cleaning: cleaning the copper wire (7) by means of a cleaning unit (3); S3: tinning of copper wire: adding tinning liquid into the treatment zone and heating it, and then tinning the copper wire (7) after it passes through the treatment zone; S4: Cooling the tin layer: The tin layer on the surface of the tinned copper wire (7) is cooled by the execution unit (4).

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