Conductive member production line

Abstract

The utility model discloses a kind of conducting part production line, including successively setting continuous extrusion unit, extrusion coating unit and continuous extrusion coating unit. Conducting part production line integration design, metal blank continuously passes through continuous extrusion unit, extrusion coating unit and continuous extrusion coating unit, realize continuous production, improve production efficiency;Metal blank can be coated insulating layer after continuous extrusion, cooling and obtains insulating conducting part, insulating conducting part can be coated armour layer after cooling, obtains armoured conducting part after reducing, intermediate product directly enters next process, reduces the risk of damage during handling, improves yield.

Description

Technical Field

[0001] This utility model relates to the field of conductive component manufacturing technology, and more specifically, to a conductive component production line. Background Technology

[0002] Conductive components constitute a significant portion of the cost of high-voltage connector wiring harnesses in electric vehicles. They are primarily used to connect battery packs and generators, as well as to charge the battery packs. Current generation conductive components consist of a core material, an insulating layer covering the core material, and an armor layer covering the insulating layer. The insulating layer blocks current, while the armor layer provides waterproofing, protection, and magnetic shielding.

[0003] Existing technology first prepares the conductive core separately, then the conductive core needs to be transported to the extrusion production line to be coated with an insulating layer, and then transported to the continuous extrusion coating production line to be coated with an armor layer. The metal billet needs to go through three production lines. The entire preparation process has low production efficiency and high labor and energy costs. During the handling of intermediate products, defects may occur due to collisions, oxidation or contamination. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned defects in the existing technology and provide a conductive component production line to achieve continuous production of insulating conductive components and reduce costs.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A conductive component production line includes components arranged sequentially as follows:

[0007] A continuous extrusion unit, comprising a continuous extrusion mechanism and a first online cooling mechanism arranged sequentially, wherein the continuous extrusion mechanism is used to continuously extrude a metal billet to obtain a metal conductive core, and the first online cooling mechanism is used to cool the metal conductive core.

[0008] An extrusion coating unit includes a front traction mechanism, an extrusion coating mechanism, a second online cooling mechanism, and a rear traction mechanism arranged sequentially. The front traction mechanism pulls the cooled metal conductive core, the extrusion coating mechanism is used to extrude an insulating layer onto the metal conductive core to obtain an insulating conductive component, the second online cooling mechanism is used to cool the insulating conductive component, and the rear traction mechanism pulls the cooled insulating conductive component.

[0009] A continuous extrusion coating unit includes a continuous extrusion coating mechanism, a third online cooling mechanism, an online diameter reduction mechanism, and an armor traction mechanism arranged sequentially. The continuous extrusion coating mechanism is used to continuously extrude the armor blank to obtain an armor layer and suspend the insulating conductive component within the armor layer to obtain an armor conductive component precursor. The third online cooling mechanism is used to cool the armor conductive component precursor. The online diameter reduction mechanism is used to reduce the diameter of the armor layer and attach the armor layer to the insulating conductive component to obtain the armor conductive component. The armor traction mechanism is used to traction the armor conductive component.

[0010] Implementing the embodiments of this utility model will have the following beneficial effects:

[0011] The conductive component production line in this embodiment includes a continuous extrusion unit, an extrusion coating unit, and a continuous extrusion coating unit arranged sequentially. The integrated design of the conductive component production line allows metal billets to continuously pass through the continuous extrusion unit, extrusion coating unit, and continuous extrusion coating unit, achieving continuous production and improving production efficiency. After continuous extrusion and cooling, the metal billet is coated with an insulating layer to obtain an insulating conductive component. After cooling, the insulating conductive component is coated with an armor layer and then reduced in diameter to obtain an armored conductive component. Intermediate products directly enter the next process, reducing the risk of damage during handling and improving the yield rate. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] in:

[0014] Figure 1 This is a schematic diagram of a conductive component production line provided in an embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of an extrusion die provided in an embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of an online diameter reduction mechanism provided in an embodiment of this utility model.

[0017] Figure 4 This is another schematic diagram of the conductive component production line provided in this embodiment of the utility model.

[0018] 1-Metal billet conveying unit, 11-Metal billet feeding mechanism, 12-Metal billet traction mechanism, 13-Metal billet straightening mechanism, 14-Metal billet cleaning mechanism, 15-Metal billet heating mechanism;

[0019] 2-Continuous extrusion unit, 21-Continuous extrusion mechanism, 22-First online cooling mechanism;

[0020] 3-Extrusion coating unit, 31-Front traction mechanism, 32-Metal core material straightening mechanism, 33-Metal core material cleaning mechanism, 34-Front heating mechanism, 35-Extrusion coating mechanism, 36-Rear heating mechanism, 37-Second online cooling mechanism, 38-Rear traction mechanism;

[0021] 4-Continuous extrusion coating unit, 41-Insulation core material straightening mechanism, 42-Insulation core material cleaning mechanism, 43-Continuous extrusion coating mechanism, 431-Extrusion die, 4311-Inner die, 4312-Outer die, 4313-Annular extrusion cavity, 4314-Through hole, 44-Third online cooling mechanism, 45-Self-adjusting guiding mechanism, 46-Online diameter reduction mechanism, 461-Diameter reduction die, 4611-Diameter reduction channel, 462-Cooling water tank, 463-Clamping assembly, 47-Armored traction mechanism, 48-Rewinding mechanism;

[0022] 5-Armored billet conveying unit, 51-Armored billet feeding mechanism, 52-Armored billet traction mechanism, 53-Armored billet straightening mechanism, 54-Armored billet cleaning mechanism;

[0023] 6-Guidance Integration Agency. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1 This utility model provides a conductive component production line, which includes a continuous extrusion unit 2, an extrusion coating unit 3 and a continuous extrusion coating unit 4 arranged in sequence.

[0026] The continuous extrusion unit 2 includes a continuous extrusion mechanism 21 and a first online cooling mechanism 22 arranged in sequence. The continuous extrusion mechanism 21 is used to continuously extrude the metal billet to obtain a metal conductive core, and the first online cooling mechanism 22 is used to cool the metal conductive core.

[0027] The extrusion coating unit 3 includes a front traction mechanism 31, an extrusion coating mechanism 35, a second online cooling mechanism 37, and a rear traction mechanism 38 arranged in sequence. The front traction mechanism 31 pulls the cooled metal conductive core, the extrusion coating mechanism 35 is used to extrude the insulating layer onto the metal conductive core to obtain an insulating conductive component, the second online cooling mechanism 37 is used to cool the insulating conductive component, and the rear traction mechanism 38 pulls the cooled insulating conductive component.

[0028] The continuous extrusion coating unit 4 includes a continuous extrusion coating mechanism 43, a third online cooling mechanism 44, an online diameter reduction mechanism 46, and an armor traction mechanism 47 arranged sequentially. The continuous extrusion coating mechanism 43 is used to continuously extrude the armor blank to obtain an armor layer and suspend the insulating conductive component in the armor layer to obtain the armor conductive component precursor. The third online cooling mechanism 44 is used to cool the armor conductive component precursor. The online diameter reduction mechanism 46 is used to reduce the diameter of the armor layer and attach the armor layer to the insulating conductive component to obtain the armor conductive component. The armor traction mechanism 47 is used to traction the armor conductive component.

[0029] It is understandable that the conductive component production line in this embodiment is designed with integration. The metal billet continuously passes through the continuous extrusion unit 2, the extrusion coating unit 3, and the continuous extrusion coating unit 4 to achieve continuous production and improve production efficiency. After being extruded by the continuous extrusion mechanism 21 and cooled by the first online cooling mechanism 22, the metal billet enters the extrusion coating machine to be coated with an insulating layer. The insulated conductive component is cooled by the second cooling mechanism and then enters the continuous extrusion coating machine to be coated with an armor layer. Intermediate products directly enter the next process, reducing human intervention and damage risks, and improving the yield rate.

[0030] Specifically, a continuous extrusion press is a commercially available continuous extrusion press that includes components such as an extrusion roller, a compaction roller, an extrusion shoe, a plug, and an extrusion die. The extrusion roller has grooves on its circumference to accommodate and transport the metal billet to be extruded. The compaction roller is located on the feed side of the extrusion roller and is used to initially compact and guide the metal billet. The extrusion shoe cooperates with the extrusion roller to form an extrusion cavity, and a groove sealing block is installed on the extrusion shoe to close the concave grooves of the extrusion roller. The plug is fixed to the outlet end of the extrusion cavity to prevent the metal billet from continuing to move forward, forcing it to flow out of the extrusion die. The extrusion die is fixed to the extrusion shoe and can include round bar dies or flat bar dies, etc., to prepare conductive components of different shapes.

[0031] The first online cooling mechanism 22 includes a first cooling water tank and a first air-cooling component disposed after the first cooling water tank. The coolant in the first cooling water tank cools the metal conductive core, and the first air-cooling component dries the liquid residue on the surface of the metal conductive core.

[0032] The second online cooling mechanism 37 includes a second cooling water tank and a second air-cooling assembly disposed after the second cooling water tank. Further, a support roller is disposed within the second cooling water tank, and an insulating conductive component is transmitted forward from the support roller. There is a gap between the second cooling water tank and the extrusion coating mechanism 35. Preferably, the support roller is coated with a low thermal conductivity material (such as ceramic) and rotates synchronously to reduce surface friction of the insulation layer and localized overcooling.

[0033] The third online cooling mechanism 44 is the same as the first online cooling mechanism 22 or the second online cooling mechanism 37, and will not be described again here.

[0034] It is understandable that, to improve the bonding strength between the insulation layer and the metal conductive core, the cooling rate of the insulation layer should be reduced, and the bonding time between the insulation layer and the conductive core should be extended. In this embodiment, there is a gap between the second cooling water tank and the extrusion coating mechanism 35, so the insulating conductive component is transported forward in the air and first cooled by air; a support roller is set inside the second cooling water tank, and the insulating conductive component moves on the support roller, and finally the insulating conductive component is cooled by the air cooling assembly. By setting gradient cooling, the cooling rate of the insulation layer is reduced, and the bonding strength between the insulation layer and the metal conductive core is improved.

[0035] Specifically, the insulating conductive component can be located above or below the coolant level in the second cooling water tank. When the insulating conductive component is below the coolant level in the second cooling water tank, cooling time is saved and the production line length is reduced. When the insulating conductive component is above the coolant level in the second cooling water tank, the insulating conductive component is not immersed in the coolant, which reduces the cooling rate and improves the bonding strength.

[0036] It should be noted that both the front traction mechanism 31 and the rear traction mechanism 38 are commercially available traction machines. The traction machine includes a pinch roller assembly, a drive system, and a control module. The metal conductive core or insulating conductive component is pinched and fed between the rollers. The drive system controls the traction speed through the control module, synchronizing it with the rotational speed of the extrusion coating mechanism 35. By setting the front traction mechanism 31 and the rear traction mechanism 38 in a linked manner to form a closed-loop tension control, the synchronization error of the linear speed before and after the metal conductive core is coated with the insulating layer is reduced, ensuring the concentricity of the metal conductive core during forward conveying and preventing uneven thickness caused by eccentricity of the coating insulating layer. The armored traction mechanism 47 is also a traction machine, and will not be described further here.

[0037] The extrusion coating mechanism 35 is a commercially available extrusion coating machine that includes components such as a hopper, screw, barrel, die head, and mold. The hopper is used to load the insulating plastic raw material. The screw, through rotation and propulsion, crushes, softens, melts, plasticizes, degasses, and compacts the plastic raw material within the barrel, continuously extruding the plasticized melt. The die head converts the rotating plastic melt into parallel linear motion, uniformly and smoothly guiding it into the die sleeve and applying the necessary molding pressure. The mold includes an orifice and a core mold. The orifice forms the outer diameter of the insulating layer, and the core mold forms the inner diameter. The core mold has a central hole for a metal conductive core to pass through, thus allowing the insulating layer to coat the metal conductive core via the extrusion coating machine.

[0038] In some alternative embodiments, refer to Figure 2 The continuous extrusion coating mechanism 43 includes a continuous extruder and an extrusion die 431. The continuous extruder includes an extrusion roller and an extrusion roller shoe. The extrusion roller has an extrusion roller groove, and the extrusion roller and extrusion roller shoe form an extrusion cavity. The extrusion roller shoe has a die orifice and is connected to the extrusion die 431. The extrusion die 431 includes an inner die 4311 and an outer die 4312 fitted outside the inner die 4311. The inner die 4311 has a through hole 4314 at its center for the passage of an insulating conductive component. The outer die 4312... An annular extrusion cavity 4313 is provided between the inner mold 4311 and the inner mold 4311. The inlet of the annular extrusion cavity 4313 is connected to the mold opening. There is a gap between the outlet of the annular extrusion cavity 4313 and the outlet of the through hole 4314. The outlet of the annular extrusion cavity 4313 is parallel to the outlet of the through hole 4314. The armored blank is transported to the extrusion wheel groove, enters the extrusion cavity, is continuously extruded, and passes through the annular extrusion cavity 4313 to obtain a closed annular armored layer. The insulating conductive component is suspended in the closed annular armored layer.

[0039] In this embodiment, the insulating conductive component enters the continuous extruder through the through hole 4314 in the center of the inner die 4311. The armored blank is continuously extruded into the extrusion cavity through the extrusion wheel groove, and then enters the annular extrusion cavity 4313 through the die opening. The annular closed armored layer is obtained through the annular extrusion cavity 4313. The insulating conductive component and the armored blank enter the continuous extrusion coating mechanism 43 simultaneously, and the armored layer is obtained through continuous extrusion, realizing continuous production.

[0040] Since the armor layer is at a high temperature when it is extruded through the annular extrusion chamber 4313, it is easy to burn the insulation layer if it is directly wrapped on the insulation layer. In this embodiment, there is a gap between the outlet of the annular extrusion chamber 4313 and the outlet of the through hole 4314, and the outlet of the annular extrusion chamber 4313 and the outlet of the through hole 4314 are parallel. Therefore, after the armor layer is extruded, the armor layer does not completely adhere to the insulating conductive component. The insulating conductive component is suspended in the closed annular armor layer, which avoids the armor layer from contacting the insulating conductive component and burning the insulation layer.

[0041] After the armor layer and the insulating conductive component are cooled together in the third cooling mechanism 44, the armor layer is then reduced in diameter by the online diameter reduction mechanism 46. After the armor layer is reduced in diameter, the thickness remains basically unchanged. The reduction in the outer diameter of the armor layer is transformed into an increase in the length or wall thickness of the armor layer. After the outer diameter of the armor layer is reduced, the armor layer adheres to the insulating layer.

[0042] An armored traction mechanism 47 is set after the online diameter reduction mechanism 46. The armored traction mechanism 47 tightens the insulating conductive parts and continuously conveys the insulating conductive parts forward, ensuring that the insulating conductive parts move in a straight line and ensuring the concentricity of the insulating conductive parts.

[0043] Preferably, the extrusion roller has two parallel extrusion roller grooves, and the extrusion roller shoe has two die openings. The two die openings are respectively connected to the annular extrusion cavity 4313. The two armored billets enter one extrusion roller groove for continuous extrusion and are extruded into the annular extrusion cavity 4313 through one die opening respectively.

[0044] Understandably, compared to a single armored blank, two armored blanks are more likely to form a closed ring after extrusion, reducing the product defect rate. The extrusion roller has two parallel extrusion grooves. The two armored blanks are extruded on one extrusion roller and then enter the annular extrusion chamber 4313 through the die openings on the extrusion shoe. This eliminates the need for two extrusion rollers to extrude the two armored blanks, reducing the space occupied by the continuous extrusion coating mechanism 43 and saving costs.

[0045] In some alternative embodiments, refer to Figure 3 The online diameter reduction mechanism 46 includes a diameter reduction mold 461, through which the armor layer is reduced in diameter and then bonded to the insulating conductive component.

[0046] In one specific embodiment, the diameter reduction mold 461 is provided with a diameter reduction channel 4611 for the armored conductive component to pass through. The diameter reduction channel 4611 includes an inlet and an outlet arranged opposite to each other. Along the direction from the inlet to the outlet, the inner diameter of the diameter reduction channel 4611 gradually decreases, and the diameter reduction mold 461 makes the armor layer fit tightly against the insulating conductive component.

[0047] In one specific embodiment, there are two or more diameter reduction dies 461, and the inner diameter of the diameter reduction channel 4611 of each diameter reduction die 461 gradually decreases along the transmission direction of the armor conductive component. Since heat is generated during the diameter reduction process of the armor layer, by setting two or more diameter reduction dies 461, multiple diameter reductions are performed separately to avoid excessively high temperatures causing grain growth, which would lead to a decrease in material strength and hardness.

[0048] Furthermore, the online diameter reduction mechanism 46 includes a cooling water tank 462, with the diameter reduction mold 461 located inside the cooling water tank 462. Coolant is placed inside the cooling water tank 462 to cool the diameter reduction mold 461. By setting up the cooling water tank 462, the coolant cools the armored conductive component, further preventing the material strength and hardness from decreasing due to excessively high temperatures during the diameter reduction process of the armor layer.

[0049] Furthermore, the online diameter reduction mechanism 46 also includes a clamping assembly 463 disposed in front of the cooling water tank 462. Since the insulating conductive component in the armored conductive component obtained by the armoring covering mechanism is suspended inside the armor layer, it is difficult for the armor layer to directly enter the diameter reduction mold 461 at first. By setting the clamping assembly 463 in front of the cooling water tank 462, in actual production, a wire can be placed on the surface of the armor layer. The clamping assembly 463 includes octopus-shaped clamping claws that clamp the wire to the armor layer. The clamping assembly 463 cooperates with the armor traction mechanism 47, which pulls the wire, so that the armor layer can smoothly enter the diameter reduction mold 461 at first.

[0050] In other specific embodiments, the online diameter reduction mechanism 46 includes a diameter reduction mold 461 and a jet cooler (not shown in the figure). The jet cooler is disposed between the diameter reduction molds 461 and blows air onto the surface of the armor layer to control the temperature of the armor layer below the recrystallization temperature.

[0051] In some alternative embodiments, refer to Figure 4 The conductive component production line also includes an armored blank conveying unit 5, which is located before the continuous extrusion and coating unit 4. The armored blank conveying unit 5 includes an armored blank feeding mechanism 51, an armored blank traction mechanism 52, an armored blank straightening mechanism 53, and an armored blank cleaning mechanism 54 arranged in sequence. The armored blank feeding mechanism 51 is used to feed the wound armored blank, the armored blank traction mechanism 52 is used to traction the armored blank, the armored blank straightening mechanism 53 is used to straighten the traction armored blank, and the armored blank cleaning mechanism 54 is used to clean the straightened armored blank.

[0052] The armored billet feeding mechanism 51 includes a wire reel and a guide wheel assembly. The feeding mechanism continuously and stably releases the armored billet and adjusts the feeding tension through the guide wheel assembly to ensure the continuity of material supply and the accuracy of speed synchronization at the front end of the production line.

[0053] The armored billet traction mechanism 52 is a traction machine that provides power for the armored billet to move forward. The traction machine includes a pinch roller group, a drive system, and a control module. The metal billet is pinched between the rollers. The drive system controls the traction speed through the control module, which is synchronized with the speed of the continuous extrusion press.

[0054] The armor blank straightening mechanism 53 is a straightening machine, which includes a transverse straightening mechanism and a longitudinal straightening mechanism. It eliminates the bending stress of the armor blank and ensures the straightness of the armor blank before it enters the continuous extrusion and coating mechanism 43.

[0055] The armor blank cleaning mechanism 54 includes one or more of a first cleaning component, a second cleaning component, and a third cleaning component. The first cleaning component is used to roughen the surface of the armor blank, which can remove stubborn stains and surface oxide scale. The second cleaning component smooths the surface of the armor blank, removing powder and solid particles. The smoothing process can also prevent solid particles from being stored in the pores or gaps of the rough surface, thus affecting the quality of the extruded material. The third cleaning component cleans the surface of the armor blank by using liquid to clean the surface of the armor blank.

[0056] The first cleaning component includes a first rotating brush and a second rotating brush located on both sides of the armor blank. The first rotating brush and the second rotating brush rotate around the armor blank, and at the same time, the first rotating brush and the second rotating brush can also rotate around their own rotation axis.

[0057] The second cleaning component includes a rotating disk, a brush holder, and a brush. The armor blank passes through the center of the rotating disk, which rotates around the armor blank. There are two or more brush holders, which are evenly distributed and fixed in the circumference of the rotating disk and rotate together with the rotating disk. The brush is fixed on the brush holder and performs rotating brushing on the armor blank.

[0058] The third cleaning component includes a water tank with an inlet for the armor blank to enter and an outlet for it to exit, located on its front and rear sides respectively. Multiple annular nozzles are arranged inside the water tank along the extension direction of the armor blank. These nozzles are mounted on a support member, which contains a water inlet pipe. The annular nozzles are connected to the water inlet pipe. The armor blank passes through the annular nozzles, which spray water onto its circumferential surface for cleaning. Preferably, the support member is an ultrasonic vibration support member, allowing the third cleaning component to perform online ultrasonic cleaning of the armor blank, thus improving the cleaning effect.

[0059] Preferably, the armor blank cleaning mechanism 54 further includes a blowing assembly for blowing away powder or water. When the armor blank cleaning mechanism 54 includes two or more of the first cleaning mechanism, the second cleaning assembly, and the third cleaning assembly, a blowing assembly can be provided after each cleaning assembly.

[0060] Optionally, the number of armored billet conveying units 5 is at least one.

[0061] For example, the number of armored blank conveying units 5 is one, or the number of armored blank conveying units 5 includes two arranged in parallel, or the number of armored blank conveying units 5 includes three arranged in parallel.

[0062] Furthermore, there are two armored blank conveying units 5. The two armored blanks conveyed are more likely to form a closed ring after being squeezed, which reduces the product defect rate.

[0063] Furthermore, the conductive component production line also includes a guiding and integrating mechanism 6, which is located between the armored billet conveying unit 5 and the continuous extrusion coating unit 4. The guiding and integrating mechanism 6 integrates and guides the armored billet to the continuous extrusion coating machine.

[0064] In some alternative embodiments, refer to Figure 4 The conductive component production line also includes a self-adjusting guide mechanism 45, which is set between the third online cooling mechanism 44 and the online diameter reduction mechanism 46. The self-adjusting guide mechanism 45 is used to adjust the conveying speed of the cooled armored conductive components.

[0065] Specifically, the self-adjusting guiding mechanism 45 includes a support frame, a lever arm, and a guide wheel. One end of the lever arm is rotatably connected to the support frame, and the other end of the lever arm is fixed to the guide wheel. The guide wheel has gravity, and under its own weight, it tends to move downwards. When the armored conductive wire is loose, the guide wheel moves downwards; when the armored conductive wire is tight, the guide wheel moves upwards. The self-adjusting guiding mechanism 45 then automatically adjusts the transmission speed according to the conveying speed of the armored conductive component. The large resistance of the diameter reduction mold 461 will affect the transmission speed of the armored conductive component. Therefore, setting up the self-adjusting guiding mechanism 45 before the online diameter reduction mechanism 46 can ensure the smooth operation of the production line.

[0066] Furthermore, the number of self-adjusting guide mechanisms 45 is more than two.

[0067] Optionally, a self-adjusting guide mechanism (not shown in the figure) is provided between the continuous extrusion unit 2 and the extrusion coating unit 3. The self-adjusting guide mechanism is used to adjust the conveying speed of the cooled metal conductive parts.

[0068] Optionally, a self-adjusting guide mechanism (not shown in the figure) is provided between the extrusion coating unit 3 and the continuous extrusion coating unit 4. The self-adjusting guide mechanism is used to adjust the conveying speed of the cooled insulating conductive parts.

[0069] In some alternative embodiments, refer to Figure 4 The continuous extrusion coating unit 4 also includes an insulating core material straightening mechanism 41 and an insulating core material cleaning mechanism 42. The insulating core material straightening mechanism 41, the insulating core material cleaning mechanism 42, and the continuous extrusion coating mechanism 43 are arranged in sequence. The insulating core material straightening mechanism 41 is used to straighten the insulating conductive parts, and the insulating core material cleaning mechanism 42 is used to clean the surface of the straightened insulating conductive parts.

[0070] Specifically, the insulating core material straightening mechanism 41 is a straightening machine, which includes a transverse straightening unit and a longitudinal straightening unit to eliminate bending stress in the insulating conductive parts and avoid uneven thickness of the covering armor layer.

[0071] The insulating core material cleaning mechanism 42 includes a water cleaning component, which includes a water tank. The water tank has an inlet on its front side and an outlet on its back side. Multiple annular nozzles are arranged inside the water tank along the extension direction of the insulating conductive component. These annular nozzles are mounted on a support member, which has an inlet pipe connected to the annular nozzles. The insulating conductive component passes through the annular nozzles, which spray water onto its circumferential surface for cleaning. Preferably, the support member is an ultrasonic vibration support member, and the core material cleaning mechanism 33 performs online ultrasonic cleaning of the insulating conductive component, improving the cleaning effect.

[0072] Preferably, the insulating core cleaning mechanism 42 further includes a blowing assembly, which is located after the water cleaning assembly to blow away the water remaining on the surface of the insulating conductive component.

[0073] In some alternative embodiments, refer to Figure 4 The extrusion coating unit 3 also includes a metal core material straightening mechanism 32 and a metal core material cleaning mechanism 33, with the front traction mechanism 31, the metal core material straightening mechanism 32, the metal core material cleaning mechanism 33, and the extrusion coating mechanism 35 arranged in sequence.

[0074] Specifically, the metal core straightening mechanism 32 is a straightening machine, which includes a transverse straightening unit and a longitudinal straightening unit to eliminate the bending stress of the metal conductive core and avoid uneven thickness of the covering insulation layer.

[0075] The metal core cleaning mechanism 33 is used to clean the surface of the metal conductive core. The metal core cleaning mechanism 33 is the same as the insulating core cleaning mechanism 42, and will not be described again here.

[0076] In some alternative embodiments, refer to Figure 4 The extrusion coating unit 3 also includes a front heating mechanism 34, which is disposed between the metal core cleaning mechanism 33 and the extrusion coating mechanism 35. The front heating mechanism 34 is used to preheat the metal conductive core.

[0077] It should be noted that the preheating mechanism 34 preheats the metal conductive core to ensure a tight bond between the preheated metal conductive core and the extruded high-temperature insulation layer, enabling continuous production. The preheating mechanism 34 can be a resistance furnace heating mechanism, an electromagnetic induction heating mechanism, an infrared heating mechanism, etc. In the resistance furnace heating mechanism, current passes through the resistance heating element (such as heating wire, silicon carbide rod, silicon molybdenum rod, etc.) in the furnace to generate heat, which indirectly heats the metal conductive core in the furnace through thermal radiation and thermal convection. The electromagnetic induction heating mechanism uses an alternating magnetic field to generate eddy currents and hysteresis losses inside the metal for heating. The infrared heating mechanism uses an infrared radiator to emit infrared rays of a specific wavelength, which are absorbed by the metal conductive core and converted into heat energy.

[0078] In one specific embodiment, the front heating mechanism 34 includes a metal tube coil and a temperature sensor. The metal tube coil is composed of a spirally wound metal tube, and a channel is provided inside the metal tube coil for the passage of a metal conductive core. When a high-frequency AC power supply is applied to the metal tube coil, the high-frequency AC power generates an alternating magnetic field through the metal tube coil. The metal conductive core is heated in the magnetic field due to eddy current effect and hysteresis loss. The temperature sensor is located on the outlet side of the channel and is used to detect the temperature of the metal conductive core.

[0079] Understandably, when the metal conductive core passes through the pre-heating mechanism 34, its movement cuts the magnetic field, and the metal coil generates heat to heat the metal conductive core. The metal conductive core is not heated if it does not pass through the pre-heating mechanism 34, thus achieving online automatic heating. The temperature of the metal conductive core is monitored in real time by a temperature sensor, and based on the feedback temperature data, the heating of the metal conductive core to a preset temperature can be controlled.

[0080] Furthermore, the temperature sensor employs an infrared thermometer to detect the temperature of the preheated metal conductive core in a non-contact manner, thereby ensuring that the preheating requirements are met to adapt to the needs of subsequent coating processes.

[0081] Furthermore, the metal tube is a hollow tube with a coolant flow channel inside. The metal tube is also equipped with a coolant inlet and a coolant outlet that are respectively connected to the coolant flow channel. The coolant flows in the coolant flow channel to regulate the temperature of the metal tube.

[0082] Furthermore, the armored billet conveying unit 5 also includes an armored billet heating mechanism (not shown in the figure), which is located after the armored billet cleaning mechanism 54. The armored billet heating mechanism is the same as the previous heating mechanism 34, and will not be described again here.

[0083] In some alternative embodiments, refer to Figure 4 The extrusion coating unit 3 also includes a post-heating mechanism 36, which is disposed between the extrusion coating mechanism 35 and the second online cooling mechanism 37. The post-heating mechanism 36 is used to heat the insulating layer of the insulating conductive component.

[0084] It is understandable that the extrusion coating mechanism 35 is prone to causing wrinkles and roughness on the surface of the insulation layer due to jamming during extrusion. By setting up the post-heating mechanism 36 to reheat and soften the insulation layer, the wrinkles are smoothed out, making the surface of the insulation layer smooth and improving the product yield.

[0085] Specifically, the front heating mechanism 34 can also be a resistance furnace heating mechanism, an electromagnetic induction heating mechanism, an infrared heating mechanism, etc. Preferably, the rear heating mechanism 36 can be an oven, which has openings at the front and rear for the passage of insulating conductive parts.

[0086] In some alternative embodiments, refer to Figure 4 The conductive component production line also includes a metal billet conveying unit 1, which is located before the continuous extrusion unit 2. The metal billet conveying unit 1 includes a metal billet feeding mechanism 11, a metal billet traction mechanism 12, a metal billet straightening mechanism 13, and a metal billet cleaning mechanism 14 arranged in sequence.

[0087] Specifically, the metal billet feeding mechanism 11 is the same as the armored billet feeding mechanism 51, the metal billet traction mechanism 12 is the same as the armored billet traction mechanism 52, the metal billet straightening mechanism 13 is the same as the armored billet straightening mechanism 53, and the metal billet cleaning mechanism 14 is the same as the armored billet cleaning mechanism 54, which will not be described in detail here.

[0088] Furthermore, the metal billet conveying unit 1 also includes a metal billet heating mechanism 15, which is located after the metal billet cleaning mechanism 14. The metal billet heating mechanism 15 is the same as the previous heating mechanism 34, and will not be described again here.

[0089] In some optional embodiments, the continuous extrusion unit 2 further includes a core material detection mechanism (not shown in the figure), which is disposed after the first online cooling mechanism 22. The core material detection mechanism includes one or more of a diameter gauge, a meter counter, and a visual inspection instrument.

[0090] It should be noted that the diameter gauge is used to measure the diameter of the metal conductive core, the meter counter is used to measure the length of the metal conductive core, and the visual inspection instrument is used to detect surface defects in the metal conductive core. Specifically, the diameter gauge detects the outer diameter of the metal conductive core in real time through laser diffraction or CCD imaging.

[0091] In some optional embodiments, the extrusion coating unit 3 further includes an insulation testing mechanism (not shown in the figure), which is located after the rear traction mechanism 38. The insulation testing mechanism includes one or more of an online power frequency spark tester, a diameter gauge, a meter counter, a visual inspection instrument, and a thickness gauge.

[0092] It should be noted that the online power frequency spark tester tests whether the insulation layer of the insulating conductive component is leaking current; the diameter gauge detects the outer diameter of the insulation layer in real time through laser diffraction or CCD imaging; the meter counter accurately measures the length of the insulating conductive component; the thickness gauge is used to measure the thickness of the insulation layer, and its detection source can be ultrasound, X-ray, laser, current, etc.; and the visual inspection instrument is used to detect surface defects of the insulation layer.

[0093] In some optional embodiments, the continuous extrusion coating unit 4 further includes an armor detection mechanism (not shown in the figure), which is located after the armor traction mechanism 47. The armor detection mechanism includes one or more of a diameter gauge, a meter counter, a thickness gauge, and a visual inspection instrument. The diameter gauge detects the outer diameter of the armor layer in real time through laser diffraction or CCD imaging; the meter counter accurately measures the length of the armor conductive parts; the thickness gauge is used to measure the thickness of the armor layer, and its detection source can be ultrasound, X-ray, laser, current, etc.; the visual inspection instrument is used to detect surface defects of the armor layer.

[0094] In some alternative embodiments, refer to Figure 4 The continuous extrusion coating unit 4 also includes a winding mechanism 48, which is located after the armor detection mechanism.

[0095] Specifically, the winding mechanism 48 includes a guide wheel assembly and a winding assembly. The guide wheel assembly includes multiple sets of guide wheels. The armored conductive component is guided by the guide wheels into the winding assembly for winding, ensuring smooth winding. The winding assembly includes a reel and a reel lateral displacement drive. The reel moves back and forth in a lateral direction perpendicular to the movement direction of the armored conductive component to wind up the wire.

[0096] In some optional embodiments, the continuous extrusion coating unit 4 also includes an online sawing mechanism (not shown in the figure), which is located after the armor detection mechanism.

[0097] Specifically, the online sawing mechanism includes a sawing component, a driving component, and a collecting component. The driving component drives the sawing component to move in the direction of movement of the armored conductive component. During the movement, the sawing component completes the cutting of the armored conductive component to a quantitative length, and the collecting component collects the cut armored conductive component.

[0098] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A conductive component production line, characterized in that, Including the following settings in sequence: A continuous extrusion unit, comprising a continuous extrusion mechanism and a first online cooling mechanism arranged sequentially, wherein the continuous extrusion mechanism is used to continuously extrude a metal billet to obtain a metal conductive core, and the first online cooling mechanism is used to cool the metal conductive core. An extrusion coating unit includes a front traction mechanism, an extrusion coating mechanism, a second online cooling mechanism, and a rear traction mechanism arranged sequentially. The front traction mechanism pulls the cooled metal conductive core, the extrusion coating mechanism is used to extrude an insulating layer onto the metal conductive core to obtain an insulating conductive component, the second online cooling mechanism is used to cool the insulating conductive component, and the rear traction mechanism pulls the cooled insulating conductive component. A continuous extrusion coating unit includes a continuous extrusion coating mechanism, a third online cooling mechanism, an online diameter reduction mechanism, and an armor traction mechanism arranged sequentially. The continuous extrusion coating mechanism is used to continuously extrude the armor blank to obtain an armor layer and suspend the insulating conductive component within the armor layer to obtain an armor conductive component precursor. The third online cooling mechanism is used to cool the armor conductive component precursor. The online diameter reduction mechanism is used to reduce the diameter of the armor layer and attach the armor layer to the insulating conductive component to obtain the armor conductive component. The armor traction mechanism is used to traction the armor conductive component.

2. The conductive component production line according to claim 1, characterized in that, The continuous extrusion coating mechanism includes an extrusion roller, an extrusion roller shoe, and an extrusion die. The extrusion roller has an extrusion groove, and the extrusion roller and the extrusion roller shoe form an extrusion cavity. The extrusion roller shoe has a die opening, and the extrusion roller shoe is connected to the extrusion die. The extrusion die includes an inner die and an outer die fitted outside the inner die. The center of the inner die has a through hole for the insulating conductive component to pass through. An annular extrusion cavity is provided between the outer die and the inner die. The inlet of the annular extrusion cavity is connected to the die opening, and there is a gap between the outlet of the annular extrusion cavity and the outlet of the through hole. The outlet of the annular extrusion cavity is parallel to the outlet of the through hole. The armored blank is conveyed to the extrusion roller groove, enters the extrusion cavity, is continuously extruded, and passes through the annular extrusion cavity to obtain a closed annular armored layer. The insulating conductive component is suspended within the closed annular armored layer.

3. The conductive component production line according to claim 1, characterized in that, It also includes a self-adjusting guide mechanism, which is disposed between the third online cooling mechanism and the online diameter reduction mechanism.

4. The conductive component production line according to claim 3, characterized in that, The number of self-adjusting guide mechanisms is two or more; The self-adjusting guide mechanism is provided between the continuous extrusion unit and the extrusion coating unit, and / or the self-adjusting guide mechanism is provided between the extrusion coating unit and the continuous extrusion coating unit.

5. The conductive component production line according to claim 1, characterized in that, It also includes an armored billet conveying unit, which is disposed before the continuous extrusion and coating unit; The armor blank conveying unit includes an armor blank feeding mechanism, an armor blank traction mechanism, an armor blank straightening mechanism, and an armor blank cleaning mechanism arranged in sequence. The armor blank feeding mechanism is used to feed the wound armor blank. The armor blank traction mechanism is used to traction the armor blank. The armor blank straightening mechanism is used to straighten the traction armor blank. The armor blank cleaning mechanism is used to clean the straightened armor blank.

6. The conductive component production line according to claim 1, characterized in that, The continuous extrusion coating unit further includes an insulating core material straightening mechanism and an insulating core material cleaning mechanism, which are arranged sequentially. The insulating core material straightening mechanism is used to straighten the insulating conductive component, and the insulating core material cleaning mechanism is used to clean the surface of the straightened insulating conductive component.

7. The conductive component production line according to claim 1, characterized in that, It also includes a metal billet conveying unit, which is located before the continuous extrusion unit. The metal billet conveying unit includes a metal billet unwinding mechanism, a metal billet traction mechanism, a metal billet straightening mechanism, and a metal billet cleaning mechanism arranged in sequence. The metal billet unwinding mechanism is used to unwind the wound metal billet. The metal billet traction mechanism is used to traction the metal billet. The metal billet straightening mechanism is used to straighten the traction metal billet. The metal billet cleaning mechanism is used to clean the straightened metal billet. The cleaned metal billet is conveyed to the continuous extrusion unit.

8. The conductive component production line according to claim 1, characterized in that, The extrusion coating unit also includes a metal core material straightening mechanism, a metal core material cleaning mechanism, a front heating mechanism, and a rear heating mechanism; The front traction mechanism, the metal core material straightening mechanism, the metal core material cleaning mechanism, the front heating mechanism, and the extrusion coating mechanism are arranged in sequence. The metal core material straightening mechanism is used to straighten the metal conductive core, the metal core material cleaning mechanism is used to clean the surface of the straightened metal conductive core, and the front heating mechanism is used to preheat the metal conductive core. The post-heating mechanism is disposed between the extrusion coating mechanism and the second online cooling mechanism, and the post-heating mechanism is used to heat the insulating layer of the insulating conductive component.

9. The conductive component production line according to claim 1, characterized in that, The continuous extrusion unit also includes a core material detection mechanism, which is located after the first online cooling mechanism. The core material detection mechanism includes one or more of a diameter measuring instrument, a meter counter, and a visual inspection instrument. The extrusion coating unit also includes an insulation testing mechanism, which is located after the rear traction mechanism. The insulation testing mechanism includes one or more of the following: an online power frequency spark tester, a diameter gauge, a meter counter, a visual inspection instrument, and a thickness gauge. The continuous extrusion coating unit also includes an armor inspection mechanism, which is located after the armor traction mechanism. The armor inspection mechanism includes one or more of the following: a diameter gauge, a meter counter, a thickness gauge, and a visual inspection instrument.

10. The conductive component production line according to claim 9, characterized in that, The continuous extrusion coating unit further includes a winding mechanism, which is located after the armor detection mechanism; or... The continuous extrusion coating unit also includes an online sawing mechanism, which is located after the armor detection mechanism.

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