Copper core production line for cable

By adopting heating, cooling and tin plating processes in the online cable production line, the problems of insufficient fracture and oxidation resistance of copper core are solved, and the effect of reducing the probability of fracture and improving the oxidation resistance is achieved.

CN119162529APending Publication Date: 2024-12-20JIAXING YAHUA CABLE CO LTD
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Patent Information

Application Number
CN202310850926.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-07-11
Publication Date
2024-12-20

AI Technical Summary

Technical Problem

The copper core of existing cables is prone to fracture during long-term repeated bending and deformation, and lacks effective anti-oxidation and corrosion resistance.

Method used

Using a production line including heating, cooling and tin plating processes, the copper core is heated through a heating mechanism, and the cooling mechanism annealed it to reduce hardness and improve plasticity. A tin plating device is installed in the drying mechanism to tin plating the copper core. Treatment to enhance antioxidant and corrosion resistance.

Benefits of technology

The probability of copper core breakage is reduced through the annealing process, and the tin plating treatment improves the oxidation and corrosion resistance of the copper core, while improving the utilization rate of hot gas and water, saving resources, and ensuring cooling effect.

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Abstract

The cable copper core production line comprises a frame body, a heating mechanism, a cooling mechanism and a drying mechanism are sequentially arranged on the frame body in the length direction of the frame body, and a take-up device is arranged on the side, provided with the drying mechanism, of the frame body; and the copper core is conveyed on the frame body, sequentially passes through the heating mechanism, the cooling mechanism and the drying mechanism and enters the take-up device. The method has the effect of reducing the fracture probability of the copper core.
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Description

Technical Field

[0001] The present application relates to the field of cable production, and in particular to a copper core production line for cables. Background Art

[0002] Cable is a general term for optical cables, electrical cables, etc. Cables have many uses, mainly used for controlling installation, connecting equipment, transmitting electricity, and other multiple functions. They are common and indispensable in daily life.

[0003] Existing cables are composed of a copper core and a coating layer wrapped around the copper core. The cables will bend and deform during use, and the copper core of the cable is usually a rigid material, which is prone to breakage during long-term repeated bending and deformation. Summary of the invention

[0004] In order to reduce the probability of copper core breakage, the present application provides a copper core production line for cables.

[0005] The present application provides a copper core production line for cables using the following technical solutions: A copper core production line for cables comprises a frame, on which a heating mechanism, a cooling mechanism and a drying mechanism are sequentially arranged along the length direction of the frame, a wire taking-up device is arranged on one side of the frame where the drying mechanism is arranged, and the copper core is transported on the frame and sequentially passes through the heating mechanism, the cooling mechanism and the drying mechanism to enter the wire taking-up device.

[0006] By adopting the above technical solution, the copper core is heated by the heating mechanism and then cooled by the cooling mechanism to realize the annealing process of the copper core. The hardness of the copper core is reduced by annealing, and the plasticity of the copper core is improved, thereby reducing the probability of the copper core breaking.

[0007] Optionally, a tinning device is provided between the drying mechanism and the wire taking-up device, and the tinning device includes a tin material box, and the tin material box is provided with through holes on both sides facing the drying mechanism and the wire taking-up device, and a heating element is provided in the tin material box.

[0008] By adopting the above technical solution, the setting of the tinning device can make the copper core tinned before winding, and the tinning can make the copper core have better anti-oxidation and anti-corrosion capabilities.

[0009] Optionally, a pressure roller is rotatably arranged in the tin material box, and the height of the pressure roller is lower than the height of the through hole.

[0010] By adopting the above technical solution, the setting of the pressing roller can press the copper core into the molten tin liquid, so that the copper core can fully contact with the tin liquid, thereby improving the tin plating effect.

[0011] Optionally, the heating mechanism includes side panels, a hot air pipe and a top plate, wherein there are two side panels, and the two side panels are respectively fixed on both sides of the frame, and the hot air pipe is arranged between the two side panels, and the outer wall of the hot air pipe abuts the copper core, and the top plate is mounted between the two side panels above the hot air pipe.

[0012] By adopting the above technical solution, hot air is introduced into the hot air pipe, and then the heat is transferred to the copper core through the hot air pipe to heat the copper core.

[0013] Optionally, the drying mechanism includes a hot air hopper, a fan and a cover body, the hot air hopper is installed on a frame, the hot air hopper is provided with an air outlet on the side facing the copper core, the hot air hopper is provided with an air inlet on the side facing away from the air outlet, the fan is installed on the side of the hot air hopper with the air inlet, the fan blows air towards the air inlet, and the cover body is arranged on the frame on the side of the copper core facing away from the hot air hopper.

[0014] By adopting the above technical solution, the hot air in the hot air bucket is blown toward the copper core by the fan to dry the copper core.

[0015] Optionally, a connecting pipe is provided between the hot air pipe and the hot air bucket, and two ends of the connecting pipe are respectively connected to and communicate with the hot air pipe and the hot air bucket.

[0016] By adopting the above technical solution, the hot air in the hot air pipe is transported to the hot air bucket through the connecting pipe, thereby improving the utilization rate of the hot air and saving resources.

[0017] Optionally, the top of the tin box is connected to and communicated with an exhaust pipe, and one end of the exhaust pipe away from the tin box is connected to and communicated with a hot air pipe.

[0018] By adopting the above technical solution, the exhaust pipe transfers the heat generated in the tin box to the hot air pipe to heat the copper core, thereby improving the utilization rate of the hot air and saving resources.

[0019] Optionally, the cooling mechanism includes a water trough and a guide roller, the water trough is mounted on a frame, and the guide roller is rotatably disposed in the water trough.

[0020] By adopting the above technical solution, the water tank is used to place cold water, and the guide roller guides the copper core into the water tank, thereby cooling the copper core.

[0021] Optionally, a water inlet pipe and a water outlet pipe are provided on the water tank, and the water inlet pipe and the water outlet pipe are connected and communicated with the water tank.

[0022] By adopting the above technical solution, the arrangement of the water inlet pipe and the water outlet pipe enables the cold water in the water tank to circulate, thereby controlling the water temperature and ensuring the cooling effect.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. After the copper core is heated by the heating mechanism, it is cooled by the cooling mechanism to realize the annealing process of the copper core. The hardness of the copper core is reduced by annealing, and the plasticity of the copper core is improved, thereby reducing the probability of the copper core breaking; 2. The setting of the tinning device can make the copper core tinned before winding, and the tinning can make the copper core have better anti-oxidation and anti-corrosion ability; 3. The hot air in the hot air pipe is transported to the hot air bucket through the connecting pipe, thereby improving the utilization rate of hot air and saving resources; 4. The exhaust pipe transports the heat generated in the tin box to the hot air pipe to heat the copper core, thereby improving the utilization rate of hot air and saving resources; 5. The setting of the water inlet pipe and the water outlet pipe enables the cold water in the water tank to circulate, thereby controlling the water temperature and ensuring the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of this embodiment.

[0025] Figure 2 It is a schematic diagram of the overall structure of this embodiment from another perspective.

[0026] Figure 3 It is a cross-sectional view of the overall structure of this embodiment.

[0027] Explanation of the reference numerals: 0, copper core; 1, frame; 2, heating mechanism; 21, side panel; 22, hot air pipe; 221, heating pipe; 222, preheating pipe; 23, top panel; 3, cooling mechanism; 31, water tank; 32, guide roller; 4, drying mechanism; 41, hot air bucket; 42, fan; 43, cover; 5, wire taking-up device; 51, wire taking-up frame; 52, winding roller; 6, tinning device; 61, tin box; 62, heating element; 7, through hole; 8, pressure roller; 9, air outlet; 10, air inlet; 11, connecting pipe; 12, exhaust pipe; 13, water inlet pipe; 14, water outlet pipe; 15, air inlet pipe; 16, air outlet pipe; 17, reflux pipe; 18, rotating roller. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 This application is described in further detail.

[0029] The present application embodiment discloses a copper core production line for cables, referring to Figure 1 and Figure 2, including a rectangular frame 1 erected on the ground, on which a heating mechanism 2 for heating the copper core 0, a cooling mechanism 3 for cooling the heated copper core 0 and a drying mechanism 4 for drying the cooled copper core 0 are sequentially arranged along the length direction of the frame 1, and a wire-receiving device 5 is arranged on one side of the drying mechanism 4 of the frame 1. The copper core 0 after processing is reeled up by the wire-receiving mechanism, and the copper core 0 is transported on the frame 1 after unwinding and sequentially passes through the heating mechanism 2, the cooling mechanism 3 and the drying mechanism 4 to enter the wire-receiving device 5. After the copper core 0 is heated by the heating mechanism 2, the copper core 0 is cooled by the cooling mechanism 3 to realize the annealing process of the copper core 0. The hardness of the copper core 0 is reduced by annealing, and the plasticity of the copper core 0 is improved, thereby reducing the probability of the copper core 0 breaking. The drying mechanism 4 dries the cooled copper core 0, dries the water on the copper core 0, and reduces the influence of the water on the copper core 0 on the subsequent process.

[0030] Reference Figure 1 and Figure 3 The heating mechanism 2 includes two side plates 21 respectively fixed on both sides of the frame 1, a hot air pipe 22 between the two side plates 21, and a top plate 23 mounted between the two side plates 21 above the hot air pipe 22. The top plate 23 is rotatably set on one of the side plates 21, and the top plate 23 is mounted on the other side plate 21 away from the rotating setting. The air inlet and outlet ends of the hot air pipe 22 both penetrate the side plates 21, and the outer wall of the hot air pipe 22 abuts the copper core 0. By passing hot air into the hot air pipe 22, the heat is subsequently directly transferred to the copper core 0 through the hot air pipe 22, and the heat dissipated by the hot air pipe 22 between the side plates 21 and the top plate 23 is used to heat the copper core 0. The hot air pipe 22 is bent in a serpentine shape as a whole. The serpentine hot air pipe 22 can increase the heat exchange time between the hot air pipe 22 and the copper core 0, thereby improving the heat exchange effect.

[0031] Reference Figure 1 and Figure 3 The cooling mechanism 3 includes a water tank 31 mounted on the frame 1 and a guide roller 32 rotatably arranged in the water tank 31; cold water is stored in the water tank 31, and an inlet pipe 13 and an outlet pipe 14 are arranged on the water tank 31. The inlet pipe 13 and the outlet pipe 14 are connected and communicate with the water tank 31. The inlet pipe 13 and the outlet pipe 14 are both connected to the condenser to form a cycle. After the copper core 0 leaves the heating mechanism 2, it enters the water tank 31 and contacts with the cold water in the water tank 31 under the guidance of the guide roller 32 for cooling. At the same time, the surface of the copper core 0 can also be cleaned. The inlet pipe 13 sends cold water into the water tank 31, and the outlet pipe 14 sends the water heat exchanged with the copper core 0 out of the water tank 31 into the condenser for condensation and then into the water tank 31 through the inlet pipe 13. The setting of the inlet pipe 13 and the outlet pipe 14 enables the cold water in the water tank 31 to circulate, thereby controlling the water temperature and ensuring the cooling effect.

[0032] Reference Figure 1 and Figure 3The drying mechanism 4 includes a hot air bucket 41 installed on the frame 1. The hot air bucket 41 is provided with an air outlet 10 on the side facing the copper core 0. The air outlet 10 is a hole evenly provided on the hot air bucket 41. The evenly distributed holes enable hot air to be evenly blown out from the hot air bucket 41, making the hot air more uniform and improving the overall drying effect. The hot air bucket 41 is provided with an air inlet 10 on the side facing away from the air outlet 10. A fan 42 is installed on the side of the hot air bucket 41 where the air inlet 10 is provided. The fan 42 blows air toward the air inlet 10. The air inlet 10 is covered on the periphery of the fan 42 to reduce the wind In order to reduce the probability of the air blown out by the blower 42 leaking out, hot air is introduced into the hot air bucket 41, and then the hot air in the hot air bucket 41 is blown toward the copper core 0 by the blower 42, and the copper core 0 is dried by the hot air, thereby reducing the influence of water adhering to the copper core 0 during cooling on the subsequent processing of the copper core 0. A cover body 43 is arranged on the side of the copper core 0 away from the hot air bucket 41, and the cover body 43 is rotatably arranged on the frame 1. The arrangement of the cover body 43 can slow down the loss of hot air, thereby improving the drying effect. The rotatable cover body 43 is convenient for opening and repairing the inside of the cover body 43 and the hot air bucket 41.

[0033] Reference Figure 1 The wire-taking device 5 includes a wire-taking frame 51 placed on the ground and a plurality of winding rollers 52 rotatably arranged on the wire-taking frame 51. After the copper core 0 is tinned, it is wound up by the plurality of winding rollers 52. Each winding roller 52 is connected to a motor. The motor drives the winding roller 52 to rotate and drive the copper core 0 to wind up, and can also provide power for the transportation of the copper core 0.

[0034] Reference Figure 1 and Figure 3A tinning device 6 is provided between the drying mechanism 4 and the wire-taking device 5. The tinning device 6 includes a tin material box 61 placed on the ground. Tin material is placed in the tin material box 61. Through holes 7 are provided on both sides of the tin material box 61 facing the drying mechanism 4 and the wire-taking device 5. A heating element 62 is provided in the tin material box 61. The heating element 62 heats the tin material in the tin material box 61 to melt the tin material. A material port is provided on the top of the tin material box 61. The material port is used to put materials. A baffle is provided at the material port. The baffle opens or closes the material port. When the material port is opened, materials can be put into the tin material box 61. When the material port is closed, it can reduce the entry of debris into the tin material box 61, thereby reducing the probability of the tin material being contaminated. A pressing roller is rotatably provided in the tin material box 61. 8. The height of the pressure roller 8 is lower than the height of the through hole 7. Tin is placed in the tin box 61. The tin is heated to a molten state by the heating element 62. The copper core 0 enters the tin box 61 from the through hole 7 on the side facing the drying mechanism 4, and is guided by the pressure roller 8 to be pressed in the molten tin for tin coating. Then, the copper core 0 leaves the tin box 61 from the through hole 7 facing the take-up device 5, and enters the take-up device 5 for take-up. The setting of the tinning device 6 can tin the copper core 0 before winding. Tinning can make the copper core 0 have better antioxidant and corrosion resistance. Rollers 18 are rotatably set at both through holes 7. The rollers 18 are rotatably set on the tin box 61 to guide the copper core 0, thereby reducing the friction loss between the copper core 0 and the tin box 61.

[0035] Reference Figure 1 , Figure 2 and Figure 3The hot air pipe 22 includes a preheating pipe 222 and a heating pipe 221. The copper core 0 passes through the preheating pipe 222 and then passes through the heating pipe 221. The heating pipe 221 is connected to and communicated with an air inlet pipe 15 at a side away from the preheating pipe 222. The air inlet pipe 15 is connected to a heat source, and a tubular furnace can be used as the heat source. The heating pipe 221 is connected to and communicated with an air outlet pipe 16 at one end close to the preheating pipe 222. The air outlet pipe 16 is connected to a heating element 62 at one end away from the heating pipe 221. The heating element 62 uses a heating pipe 221. The air outlet pipe 16 is connected to the heating pipe 221. The top of the tin box 61 is connected to and communicated with an exhaust pipe 12. The end of the heating element 62 away from the air outlet pipe 16 is connected to and communicated with a reflux pipe 17. The end of the reflux pipe 17 away from the heating element 62 is connected to and communicated with the exhaust pipe 12, the end of the exhaust pipe 12 away from the tin material box 61 is connected to and communicated with the end of the preheating pipe 222 close to the heating pipe 221, the back of the preheating pipe 222 is connected to and communicated with the connecting pipe 11 away from the heating pipe 221; the connecting pipe 11 is connected to and communicated with the hot air bucket 41 at one end away from the preheating pipe 222; the heat source provides hot air with a temperature of 650°C for the heating pipe 221, and the direction of the hot air flowing in the heating pipe 221 is opposite to the conveying direction of the copper core 0, so that the temperature of the heating pipe 221 that the copper core 0 contacts first during heating will be lower than that of the heating pipe 221 that contacts later, so that the copper core 0 can be gradually heated, and reasonable utilization Heat is provided to improve the heat exchange effect; after the hot air exchanges heat with the copper core 0 in the heating tube 221, it is sent to the heating element 62 through the outlet pipe 16, and the tin material is melted by the hot air. The melting point of tin is 231.89°C. The temperature of the hot air after heating the copper core 0 is sufficient to melt the tin material. The hot air generated by the melting of the tin and the hot air of the heating tube 221 after the melting of the tin material converge into the exhaust pipe 12, and are sent to the preheating tube 222 through the exhaust pipe 12. The copper core 0 before heating is preheated by the preheating tube 222, thereby increasing the initial temperature of the copper core 0 when heated and improving the heating efficiency; the gas flow direction of the exhaust pipe 12 entering the preheating tube 222 is opposite to the conveying direction of the copper core 0, which can make the copper core 0 During preheating, the temperature of the preheating tube 222 that 0 contacts first will be lower than that of the preheating tube 222 that contacts later, so that the temperature of the copper core 0 can be gradually increased, and the heat can be reasonably used to improve the heat exchange effect; the gas in the preheating tube 222 is finally sent to the hot air bucket 41 through the connecting pipe 11, and the hot air is blown on the copper core 0 by the fan to dry the copper core 0 after cooling and cleaning. The pipelines in this embodiment can all be made of high-temperature resistant pipes such as quartz tubes or copper tubes. The part of the pipeline located outside the equipment is insulated to reduce the influence of the temperature in the pipeline on the working environment temperature. The connection between the pipelines can adopt a flange with a sealing function, and the flange is made of the same material as the pipe.

[0036] The implementation principle of the embodiment of the present application is as follows: a number of copper cores 0 are unrolled and evenly distributed along the wide band direction of the frame 1, and then the copper core 0 passes through the heating mechanism 2, and the copper core 0 is preheated by heat exchange with the preheating tube 222, and then is heated by heat exchange with the heating tube 221, and after the heating of the copper core 0 is completed, the copper core 0 passes through the cooling mechanism 3, and the copper core 0 is cooled and cleaned by heat exchange with cold water in the water tank 31 to complete the annealing process; after the annealing process is completed, the copper core 0 passes through the drying mechanism 4, and the moisture on the surface of the copper core 0 is dried by hot air in the drying mechanism 4, and after the surface of the copper core 0 is dried, the copper core 0 enters the tinning material box 61 and contacts with the molten tin material, so that the tin material is coated with a layer of tin material on the surface of the copper core 0, and after the tinning is completed, the copper core 0 enters the winding device for winding, and the annealing and tinning processing of the copper core 0 are completed.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A copper core production line for cables, characterized by: The invention comprises a frame (1), wherein a heating mechanism (2), a cooling mechanism (3) and a drying mechanism (4) are sequentially arranged on the frame (1) along the length direction of the frame (1); a wire taking-up device (5) is arranged on one side of the frame (1) provided with the drying mechanism (4); a copper core (0) is transported on the frame (1) and sequentially passes through the heating mechanism (2), the cooling mechanism (3) and the drying mechanism (4) and enters the wire taking-up device (5).

2. A copper core production line for cables according to claim 1, characterized in that: A tinning device (6) is provided between the drying mechanism (4) and the wire taking-up device (5), and the tinning device (6) comprises a tin material box (61). Through holes (7) are provided on both sides of the tin material box (61) facing the drying mechanism (4) and the wire taking-up device (5), and a heating element (62) is provided in the tin material box (61).

3. A copper core production line for cables according to claim 2, characterized in that: A pressure roller (8) is rotatably arranged in the tin material box (61), and the height of the pressure roller (8) is lower than the height of the through hole (7).

4. A copper core production line for cables according to claim 1, characterized in that: The heating mechanism (2) comprises a side plate (21), a hot air pipe (22) and a top plate (23); the side plates (21) are in two pieces, and the two side plates (21) are respectively fixed on two sides of the frame (1); the hot air pipe (22) is arranged between the two side plates (21); the outer wall of the hot air pipe (22) abuts against the copper core (0); and the top plate (23) is mounted between the two side plates (21) above the hot air pipe (22).

5. A copper core production line for cables according to claim 4, characterized in that: The drying mechanism (4) comprises a hot air hopper (41), a fan (42) and a cover (43); the hot air hopper (41) is mounted on the frame (1); an air outlet (9) is provided on the side of the hot air hopper (41) facing the copper core (0); an air inlet (10) is provided on the side of the hot air hopper (41) facing away from the air outlet (9); the fan (42) is mounted on the side of the hot air hopper (41) where the air inlet (10) is provided; the fan (42) blows air towards the air inlet (10); and the cover (43) is arranged on the frame (1) on the side of the copper core (0) facing away from the hot air hopper (41).

6. A copper core production line for cables according to claim 5, characterized in that: A connecting pipe (11) is provided between the hot air pipe (22) and the hot air bucket (41), and two ends of the connecting pipe (11) are respectively connected to and communicate with the hot air pipe (22) and the hot air bucket (41).

7. A copper core production line for cables according to claims 3 and 6, characterized in that: The top of the tin material box (61) is connected to and communicated with an exhaust pipe (12), and one end of the exhaust pipe (12) away from the tin material box (61) is connected to and communicated with a hot air pipe (22).

8. The copper core production line for cables according to claim 1, characterized in that: The cooling mechanism (3) comprises a water tank (31) and a guide roller (32); the water tank (31) is mounted on a frame (1); and the guide roller (32) is rotatably disposed in the water tank (31).

9. A cable copper core production line according to claim 8, characterized in that: The water tank (31) is provided with a water inlet pipe (13) and a water outlet pipe (14), and the water inlet pipe (13) and the water outlet pipe (14) are connected and communicate with the water tank (31).