Insulated cable and processing technology thereof

Abstract

The invention discloses an insulated cable and a processing technology thereof, comprising the following steps: step one: assembling and processing the insulated cable through a processing device; step two: clamping a core group through a clamping component in the processing device; step three: extruding the raw material of the protective jacket through a conveying component in the processing device; step four: preheating the raw material of the protective jacket and the core group in the clamping process through a heating component in the processing device; step five: cooling the processed cable through a cooler, and pulling and extruding the cooled cable through an external traction device; and extruding the core group through a second rotating barrel, a tapered shaft and a first rotating barrel to limit the position of the core group, so that the conductor core and the steel strand therein can be completely attached to the surface of the clamping tube sleeve, thereby improving the stability of the insulation.

Description

Technical Field

[0001] The invention relates to the technical field of cable production, in particular to an insulated cable and a processing technology thereof. Background Art

[0002] Insulated cables are classified into overhead insulated cables, ground insulated cables, pipe insulated cables, and hybrid insulated cables according to different laying methods; among them, overhead insulated cables refer to cable systems that suspend insulated core wires in the air for power transmission. This type of cable does not rely on underground infrastructure, so it can save space and improve power transmission efficiency; and overhead insulated cables will be subject to a certain degree of wind load when the wind is strong. When the wind speed exceeds a certain value, the wind load will have a greater impact on the overhead cables, causing the cables to twist, swing, or even break in the horizontal direction; in order to resist external wind pressure, an insulated cable that can resist external wind loads is needed.

[0003] The patent with the authorization announcement number CN111653383B discloses a double-layer co-extruded insulated cable. Through the arrangement of the positions of the insulating layer and the steel strands and the wrapping of the protective jacket, the cable core can achieve a better insulation effect. The gaps between the protective jacket, the steel strands and the insulating layer are filled with tensile fibers, which can improve the quality of the cable body. However, the steel strands in the patent can only play an insulating and stabilizing role for the cable, and cannot assist the cable to resist external wind loads, so the practicality is low.

[0004] At the same time, the patent also discloses a cable extrusion device, which mainly uses a heating ring to be sleeved on the outer surface of the extrusion barrel during the cable extrusion process, so as to facilitate the installation, disassembly and replacement between the heating device and the extrusion assembly. On the other hand, through the close contact between multiple heating rings and the extrusion barrel, the raw materials in the extrusion barrel can be continuously heated during the pushing and extrusion process, thereby improving the degree of hot melting and ensuring the quality of cable extrusion; however, the raw materials in the patent are conveyed in a threaded pushing manner, and the raw materials will be excessively stirred when the threads rotate, resulting in a greater risk of bubbles in the raw materials, which is not conducive to the insulation protection effect of the cable; and, in the device, a plurality of heating rings are sleeved on the outer surface of the extrusion barrel to provide a heating effect for the raw materials, which is not conducive to temperature control and uniform temperature distribution, resulting in poor raw material molding effect;

[0005] Therefore, the present invention provides an insulated cable and a processing technology thereof. Summary of the invention

[0006] The object of the present invention is to provide an insulated cable and a processing technology thereof to solve the problems raised in the above background.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: an insulated cable and a processing technology thereof, including an insulated cable and a processing technology of an insulated cable;

[0008] The insulated cable comprises a core group and a protection group, wherein the core group comprises a conductor core, a steel strand, and a clamping tube sleeve, wherein a conductor shielding layer is arranged on the surface of the conductor core, and an insulating layer is arranged on the surface of the conductor shielding layer; the insulating layer is clamped on the upper surface of the clamping tube sleeve; the steel strand is clamped on the lower surface of the clamping tube sleeve; the protection group comprises a protective jacket and a filling layer; the clamping tube sleeve is arranged inside the protective jacket; the filling layer is filled on the surface of the protective jacket and the clamping tube sleeve; the steel strand is arranged in a flat manner;

[0009] The processing technology of the insulated cable comprises the following steps:

[0010] Step 1: assembling and processing the insulated cable through a processing device;

[0011] Step 2: clamping the core group through the clamping assembly in the processing device;

[0012] Step 3: Extruding the raw material of the protective jacket through a conveying assembly in the processing device;

[0013] Step 4: preheating the protective jacket material and the core group in the clamping process through the heating component in the processing device;

[0014] Step 5: Cool the processed cable by a cooler, and extrude the cooled cable by pulling through an external pulling device.

[0015] Preferably, when the raw material of the protective jacket is extruded through the conveying assembly in the processing device in step three, the servo motor is set on the surface of the raw material bin, and the vibration generated by the servo motor when it is working is absorbed by the raw material bin, and the raw material is loaded through the raw material bin. When the device is working, the raw material is always in a micro-vibration state, thereby accelerating the creep of the raw material.

[0016] Preferably, the processing device includes a shell, and a first support frame and a second support frame are fixedly connected to the inside of the shell, an extruder for molding the protective jacket is fixedly connected above the first support frame, the raw material bin is fixed to the upper part of the shell, and a conveying component for extruding the raw material of the protective jacket is arranged below the raw material bin; a heating component for preheating the raw material of the protective jacket and the insulating material is arranged above the second support frame; and a clamping component for clamping the inner core group is arranged on the right side of the second support frame.

[0017] Preferably, the conveying component includes a servo motor, an arc-shaped extrusion block, a piston disk and an extrusion chamber, the conveying component realizes the extrusion of raw materials by the reciprocating sliding of the piston disk inside the extrusion chamber, the conveying component realizes the flow of hot air in the heating component by the reciprocating sliding of the piston disk, and the conveying component realizes the efficient clamping effect of the clamping component on each insulating material by the rotation of the arc-shaped extrusion block; the heating component includes a heater, a sleeve, a heating tube and a conical exhaust sleeve, the heating component conducts heat to the raw material through the heating tube, and the heating component conducts heat to the surface of the inner core group through the conical exhaust sleeve; the clamping component includes a base, an arc-shaped matching plate and an extrusion plate, and the clamping component changes the heating range of the conical exhaust sleeve through the extrusion plate.

[0018] Preferably, the output end of the servo motor is fixedly connected to a rotating shaft, the surface of the rotating shaft is fixedly connected to an arc-shaped swinging plate, and the arc-shaped extrusion block is fixedly connected to the lower end of the arc-shaped swinging plate; the piston disk slides on the inner surface of the extrusion bin, the surface of the piston disk is fixedly connected to a T-shaped motion rod, and the T-shaped motion rod is slidably connected to the arc-shaped swinging plate; the surface of the extrusion bin is provided with an air inlet, an exhaust pipe and a delivery pipe, the extrusion bin is through-connected with the raw material bin, a one-way valve is arranged inside the delivery pipe, and the delivery pipe is through-connected to the surface of the extruder.

[0019] Preferably, a heating rod is fixedly provided on the surface of the heater, and the sleeve is sleeved on the surface of the heating rod. A connecting port and a connecting pipe are opened on the surface of the sleeve, and the connecting port is through-connected with the exhaust pipe; a gas pipeline is through-connected below the connecting pipe, and the heating pipe and the conical exhaust sleeve are respectively through-connected at both ends of the gas pipeline.

[0020] Preferably, the base is fixedly arranged on the surface of the second support frame; the surface of the base is rotatably connected to the first rotating barrel, the surface of the base is fixedly connected to the first limit plate, the surface of the first limit plate is rotatably connected to the conical shaft, the surface of the base is slidably connected to the second limit plate, the surface of the second limit plate is rotatably connected to the second rotating barrel, the arc-shaped matching plate is fixedly arranged above the second limit plate, the surface of the second limit plate is sleeved with a compression spring, and the arc-shaped matching plate is fixedly connected to the extrusion plate; the surface of the base is rotatably connected to the arc-shaped limit plate, and a reset spring is arranged between the arc-shaped limit plate and the base.

[0021] Preferably, a cooler is fixedly connected to the left side of the shell, the cable is passed through the surface of the cooler, and flowing coolant is provided inside the cooler.

[0022] Preferably, the interior of the clamping sleeve is set to be hollow to reduce the overall weight of the cable. After the cable is produced, the hollow part can be filled according to its usage scenario to improve its strength and flexibility. Another set of wire cores can be added in the hollow part to enhance current conductivity.

[0023] The beneficial effects of the present invention are as follows:

[0024] The present invention arranges the steel strand in a long strip shape, the steel strand includes an axis core and steel wires, and the steel wires are tightly woven on the outer layer of the core shaft. The long strip shape of the steel strand and the woven structure of the steel wires can improve the longitudinal toughness and durability of the steel strand; because the steel strand has a high bending resistance on both sides in the long strip shape, when the wind load has a horizontal impact on the insulated cable, the steel strand can assist the insulated cable to resist the impact of the wind load.

[0025] The conveying component of the present invention adopts a suction method to convey the raw materials, which can effectively avoid the generation of bubbles. This is because the suction method sucks the raw materials through negative pressure, and then pushes the raw materials to move through equal pressure, thereby ensuring stability and continuity during the conveying process, and preventing bubbles from mixing, thereby improving the molding quality of the protective jacket.

[0026] The function of the heating component of the present invention is to utilize heating technology to first heat the airflow generated during the operation of the conveying component, and then transfer the treated gas to the inside of the heating tube and the conical exhaust sleeve, so as to improve the heating effect of the raw materials inside the conveying tube. This heating method can allow the raw materials inside the conveying tube to receive a more balanced heat distribution, thereby achieving a better heating effect.

[0027] The clamping assembly of the present invention extrude the inner core group through the second rotating barrel, the conical shaft and the first rotating barrel to limit the position of the inner core group, so that the wire core and the steel strand therein can be completely attached to the surface of the clamping tube sleeve, thereby improving the stability of insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A flowchart of the processing steps of an insulated cable of the present invention;

[0029] Figure 2 It is a schematic diagram of the overall structure of the processing device of the present invention;

[0030] Figure 3 It is a schematic diagram of the internal structure of the processing device of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the conveying component;

[0032] Figure 5 It is a schematic diagram of the sleeve structure;

[0033] Figure 6 It is a schematic diagram of the transmission relationship between the arc-shaped extrusion block and the extrusion plate;

[0034] Figure 7 It is a schematic diagram of the transmission relationship between the second rotary barrel and the arc-shaped limit plate;

[0035] Figure 8 for Figure 3 Enlarged view of point A in the middle;

[0036] Fig. 9 This is a structural diagram of the insulated cable of the present invention;

[0037] In the figure: 1, shell; 2, cooler; 3, first support frame; 4, extruder; 5, second support frame; 6, raw material warehouse; 7, cable; 71, protective jacket; 72, insulation layer; 73, conductor shielding layer; 74, wire core; 75, steel strand; 76, clamping tube sleeve; 77, filling layer; 100, conveying component; 101, servo motor; 102, rotating shaft; 103, arc swing plate; 104, arc extrusion block; 105, T-shaped motion rod; 106, piston plate; 107, extrusion warehouse; 108, air inlet; 109, exhaust Air pipe; 110, delivery pipe; 200, heating component; 201, heater; 202, heating rod; 203, sleeve; 204, connection port; 205, connecting pipe; 206, air pipeline; 207, heating pipe; 208, conical exhaust sleeve; 300, snap-on component; 301, base; 302, first rotary barrel; 303, first limit plate; 304, conical shaft; 305, arc-shaped matching plate; 306, extrusion plate; 307, second limit plate; 308, second rotary barrel; 309, compression spring; 310, arc-shaped limit plate. DETAILED DESCRIPTION

[0038] Because existing cables are greatly affected by wind loads, when the wind speed exceeds a certain value, the wind load will have a greater impact on the overhead cables, causing the cables to twist, swing, or even break in the horizontal direction; at the same time, the existing processing device uses a screw push method to transport the raw materials, which will excessively stir the raw materials when the screw rotates, resulting in a greater risk of bubbles in the raw materials, which is not conducive to the insulation protection effect of the cable; and the existing device heats the raw materials unevenly, which is not conducive to temperature control, resulting in poor raw material molding effect;

[0039] Therefore, the present invention provides an insulated cable and a processing technology thereof, including an insulated cable 7 and a processing technology of an insulated cable;

[0040] Further, such as Fig. 9As shown, the insulated cable 7 includes a core group and a protection group, the core group includes a conductor core 74, a steel strand 75, and a clamping tube sleeve 76; wherein the steel strand 75 is arranged in a long strip shape; the steel strand 75 includes an axis core and a steel wire, and a core shaft is made of a thermoplastic elastomer (such as TPE / TPR), which has excellent resilience, anti-oxidation and oil resistance, and at the same time, the steel wire is tightly woven on the outer layer of the core shaft, and the long strip shape of the steel strand 75 and the woven structure of the steel wire can improve the longitudinal toughness and durability of the steel strand 75; since the steel strand 75 is in a long strip shape and has a high bending resistance on both sides, when the wind load affects the insulated cable 7 in the horizontal direction, the steel strand 75 can assist the insulated cable 7 to resist the influence of the wind load;

[0041] The material of the clamping tube sleeve 76 is polyurethane rubber (PUR), which is a high molecular polymer with good electrical insulation performance, mechanical strength, oil resistance and weather resistance. The function of the clamping tube sleeve 76 is to limit the plurality of conductor cores 74 and the steel strands 75 to improve the shape stability of the insulated cable 7. At the same time, when one group of conductor cores 74 is damaged, the clamping tube sleeve 76 can isolate it from the other conductor cores 74 to improve the insulation effect.

[0042] A conductor shielding layer 73 is provided on the surface of the conductor core 74. The conductor shielding layer 73 is made of copper or copper composite material to prevent electromagnetic interference and external magnetic field from affecting the signal, protect the internal transmission line from interference from the external electromagnetic field, and at the same time, help reduce the external radiation of the cable itself, and improve the privacy and safety of the cable.

[0043] The surface of the conductor shielding layer 73 is provided with an insulating layer 72; the insulating layer 72 is clamped on the upper surface of the clamping tube sleeve 76; the steel strand 75 is clamped on the lower surface of the clamping tube sleeve 76, and the steel strand 75 is heavier than the conductor core 74. When the insulated cable is placed naturally, one end of the steel strand 75 is always downward, and the position of the conductor core 74 inside the insulated cable 7 can be quickly determined, which is convenient for maintenance and repair; when the insulated cable 7 is installed, by comparing the horizontal angles of the steel strands 75 at both ends with the ground, it can be determined whether the surface of the insulated cable 7 is twisted during the installation process;

[0044] The protection group includes a protective jacket 71 and a filling layer 77; the clamping tube sleeve 76 is sleeved inside the protective jacket 71 to improve the insulation and protection effects; the filling layer 77 is tensile-resistant fiber filled on the surface of the protective jacket 71 and the clamping tube sleeve 76 to improve firmness.

[0045] Further, such as Figure 1 As shown, a processing technology of an insulated cable includes the following steps:

[0046] Step 1: Processing the insulated cable through a processing device;

[0047] Step 2: Fixing and clamping the core group by means of the clamping assembly 300 in the processing device;

[0048] Step 3: Extruding the raw material of the protective jacket 71 through the conveying assembly 100 in the processing device;

[0049] Step 4: preheating the protective jacket 71 material and the core group by the heating component 200 in the processing device;

[0050] Step 5: Cool the processed cable 7 by the cooler 2, and extrude the cooled cable 7 by pulling through an external pulling device.

[0051] Furthermore, in step three, when the raw material of the protective jacket 71 is extruded through the conveying component 100 in the processing device, the servo motor 101 is set on the surface of the raw material bin 6. The vibration generated by the servo motor 101 when working is absorbed by the raw material bin 6. The raw material is loaded through the raw material bin 6. When the device is working, the raw material is always in a micro-vibration state, which accelerates the creep of the raw material.

[0052] like Figure 2 and Figure 3 As shown, the processing device includes a shell 1, and a first support frame 3 and a second support frame 5 are fixedly connected inside the shell 1, an extruder 4 for molding the protective jacket 71 is fixedly connected above the first support frame 3, a raw material bin 6 is fixed to the upper part of the shell 1, and a conveying component 100 for extruding the raw material of the protective jacket 71 is arranged below the raw material bin 6; a heating component 200 for preheating the raw material of the protective jacket 71 and the insulating material is arranged above the second support frame 5; and a clamping component 300 for clamping the inner core group is arranged on the right side of the second support frame 5.

[0053] Furthermore, the conveying component 100 includes a servo motor 101, an arc-shaped extrusion block 104, a piston disc 106 and an extrusion chamber 107. The conveying component 100 realizes the extrusion of raw materials by the reciprocating sliding of the piston disc 106 inside the extrusion chamber 107. The conveying component 100 realizes the flow of hot air in the heating component 200 by the reciprocating sliding of the piston disc 106. The conveying component 100 realizes the efficient clamping effect of the clamping component 300 on each insulating material by the rotation of the arc-shaped extrusion block 104; the heating component 200 includes a heater 201, a sleeve 203, a heating tube 207 and a conical exhaust sleeve 208. The heating component 200 conducts heat to the raw material through the heating tube 207, and the heating component 200 conducts heat to the surface of the inner core group through the conical exhaust sleeve 208; the clamping component 300 includes a base 301, an arc-shaped matching plate 305 and an extrusion plate 306. The clamping component 300 changes the heating range of the conical exhaust sleeve 208 through the extrusion plate 306.

[0054] like Figure 4 As shown, the output end of the servo motor 101 is fixedly connected to the rotating shaft 102, the surface of the rotating shaft 102 is fixedly connected to the arc-shaped swinging plate 103, and the arc-shaped extrusion block 104 is fixedly connected to the lower end of the arc-shaped swinging plate 103; the piston disc 106 slides on the inner surface of the extrusion bin 107, the surface of the piston disc 106 is fixedly connected to the T-shaped motion rod 105, and the T-shaped motion rod 105 is slidably connected to the arc-shaped swinging plate 103; the surface of the extrusion bin 107 is provided with an air inlet 108, an exhaust pipe 109 and a delivery pipe 110, the extrusion bin 107 is connected with the raw material bin 6, a one-way valve is arranged inside the delivery pipe 110, and the delivery pipe 110 is connected to the surface of the extruder 4.

[0055] like Figure 5 As shown, a heating rod 202 is fixedly provided on the surface of the heater 201, a sleeve 203 is sleeved on the surface of the heating rod 202, a connecting port 204 and a connecting pipe 205 are opened on the surface of the sleeve 203, the connecting port 204 is connected to the exhaust pipe 109; a gas pipeline 206 is connected below the connecting pipe 205, and a heating pipe 207 and a conical exhaust sleeve 208 are respectively connected to the two ends of the gas pipeline 206.

[0056] like Figure 6 and Figure 7As shown, the base 301 is fixedly arranged on the surface of the second support frame 5; the surface of the base 301 is rotatably connected to the first rotating barrel 302, the surface of the base 301 is fixedly connected to the first limit plate 303, the surface of the first limit plate 303 is rotatably connected to the conical shaft 304, the surface of the base 301 is slidably connected to the second limit plate 307, the surface of the second limit plate 307 is rotatably connected to the second rotating barrel 308, the arc-shaped matching plate 305 is fixedly arranged above the second limit plate 307, the surface of the second limit plate 307 is sleeved with a compression spring 309, and the arc-shaped matching plate 305 is fixedly connected to the extrusion plate 306; the surface of the base 301 is rotatably connected to the arc-shaped limit plate 310, and a reset spring is arranged between the arc-shaped limit plate 310 and the base 301.

[0057] Furthermore, a cooler 2 is fixedly connected to the left side of the shell 1 , a cable 7 is passed through the surface of the cooler 2 , and a flowing coolant is arranged inside the cooler 2 .

[0058] Furthermore, the interior of the clamping sleeve 76 is set to be hollow to reduce the overall weight of the cable 7. After the cable 7 is produced, the hollow part can be filled according to its usage scenario to improve its strength and flexibility. Another set of conductor cores 74 can also be added in the hollow part to enhance current conductivity.

[0059] Working principle: The device realizes the extrusion of raw materials through the conveying component 100; wherein, the servo motor 101 is started to rotate intermittently forward and reverse, and the output end of the servo motor 101 drives the rotating shaft 102 to rotate intermittently forward and reverse, and the rotation of the rotating shaft 102 drives the arc-shaped swing plate 103 to swing intermittently forward and reverse, and the maximum swing angle is controlled at about ninety degrees; two groups of piston discs 106 and extrusion chambers 107 are arranged on both sides of the arc-shaped swing plate 103, wherein the two groups of piston discs 106 slide alternately inside the two groups of extrusion chambers 107 respectively, to ensure that the raw materials inside the raw material chamber 6 can be continuously conveyed to the inside of the extrusion chamber 107, and at the same time ensure the stability of the gas discharged into the sleeve 203;

[0060] One-way valves are arranged inside the delivery pipe 110, the air inlet 108 and the exhaust pipe 109. When the piston disc 106 slides to the right inside the extrusion chamber 107, the one-way valve inside the delivery pipe 110 is closed, the one-way valve inside the air inlet 108 is closed, and the one-way valve inside the exhaust pipe 109 is opened. At this time, the raw material inside the raw material chamber 6 is sucked to one side inside the extrusion chamber 107, and the gas on the other side of the extrusion chamber 107 is squeezed by the piston disc 106 and then discharged into the sleeve 203 through the exhaust pipe 109; when the piston disc 106 slides to the left, the one-way valve inside the air inlet 108 is opened, and the gas enters the right side of the piston disc 106; the one-way valve inside the delivery pipe 110 is opened, and the raw material enters the inside of the extruder 4; the one-way valve inside the exhaust pipe 109 is in a changed state;

[0061] This component uses a suction method to transport raw materials, which can effectively avoid the generation of bubbles. This is because the suction method sucks in the raw materials through negative pressure, and then pushes the raw materials to move through equal pressure, ensuring stability and continuity during the transportation process, and preventing bubbles from mixing, thereby improving the molding quality of the protective jacket 71.

[0062] The device heats the raw material and the kernel group through the heating component 200, which is convenient for raw material molding and kernel group clamping; wherein the heater 201 controls the heating rod 202 to generate heat, and then receives the airflow generated by the conveying component 100 when working through the connecting port 204, so that the airflow forms hot gas after flowing through the surface of the heating rod 202, and then is discharged into the interior of the gas pipeline 206 through the connecting pipe 205. The connecting pipe 205 is conical in shape, and the interface at the connection with the gas pipeline 206 is small, which can pressurize the airflow and accelerate the fluidity of the airflow inside the gas pipeline 206; the airflow is diverted to the heating pipe 207 and the conical exhaust sleeve 208 through the gas pipeline 206, wherein the heating pipe 207 is sleeved on the surface of the conveying pipe 110, and the conical exhaust sleeve 208 is located above the kernel group;

[0063] The function of this component is to utilize heating technology to first heat the airflow generated by the conveying component 100 during operation, and then transfer the treated gas to the inside of the heating tube 207 and the conical exhaust sleeve 208, so as to improve the heating effect of the raw materials inside the conveying tube 110. This heating method can allow the raw materials inside the conveying tube 110 to receive a more balanced heat distribution, thereby achieving a better heating effect.

[0064] The clamping assembly 300 in the device clamps and positions the core group; wherein the core group is placed above the first rotary barrel 302, and the second rotary barrel 308 is closely attached to the core group; when the rotating shaft 102 drives the arc-shaped extrusion block 104 to swing, when the protruding portion of the arc-shaped extrusion block 104 contacts the protruding portion of the surface of the arc-shaped matching plate 305, the arc-shaped matching plate 305 slides downward under the extrusion of the arc-shaped extrusion block 104, and the arc-shaped matching plate 305 slides downward, and the arc-shaped matching plate 305 slides downward, and the second rotary barrel 308 is driven to press down the uppermost wire core 74 in the core group through the second limiting plate 307, and at this time, the uppermost wire core 74 and the steel strand 75 are completely clamped on the surface of the clamping tube sleeve 76;

[0065] At the same time, when the second rotary barrel 308 moves downward, it will squeeze the upper end of the arc-shaped limiting plate 310 downward. Since the arc-shaped limiting plate 310 is curved and swings around the base 301, the lower end of the arc-shaped limiting plate 310 squeezes and limits the rotating part of the tapered shaft 304. In this process, the friction between the second rotary barrel 308 and the arc-shaped limiting plate 310 is increased, which limits the rotation of the second rotary barrel 308. The tapered shaft 304 is transformed from a rotation state with the surface of the insulating layer 72 on both sides of the core group to a friction state. When the core group is always in a stable moving state through an external traction device, the tapered shaft 304 and the second rotary barrel 308 are used to frictionally limit the insulating layer 72 during the movement, so that the wire core 74 in this area is in a taut state, preventing the wire core 74 from bending and failing to be completely clamped on the surface of the clamping tube sleeve 76.

[0066] At the same time, when the uppermost wire core 74 presses the clamping tube sleeve 76 downward, the upper part of the clamping tube sleeve 76 is affected by the downward force so that the a and b areas on both sides are tilted toward the middle, so that the left and right wire cores 74 can be better clamped on the surface of the clamping tube sleeve 76;

[0067] At the same time, the conical exhaust sleeve 208 continuously transports hot air to the surface of the core group during the clamping process, so that the core group on the right side of the clamping component 300 is always in a heated state, and the core group is briefly in a soft state, so that it can be perfectly clamped with the wire battery 74 in a taut state. When the clamping tube sleeve 76 cools down, it becomes hard again to wrap the wire battery 74, thereby improving the stability of the position of each cable and preventing problems such as poor insulation effect caused by cable misalignment during use.

[0068] At the same time, the arc-shaped matching plate 305 moves downward to drive the extrusion plate 306 to move synchronously, and the extrusion plate 306 squeezes the conical exhaust sleeves 208 on both sides, so that the hot air blown out of the conical exhaust sleeves 208 is transformed from a state of being dispersed in all directions to a state of local accelerated heating of the a and b areas; thereby accelerating the deformation process of the a and b areas;

[0069] When the concave part of the arc-shaped extrusion block 104 fits with the concave part of the arc-shaped matching plate 305, the second limit plate 307 is reset upward under the action of the compression spring 309, and the second rotary barrel 308 and the tapered shaft 304 no longer squeeze the core group, and the wire core 74 in a tight state is temporarily released, thereby eliminating stress and avoiding damage to the insulating layer 72;

[0070] The clamping assembly 300 squeezes the inner core group through the second rotating barrel 308, the tapered shaft 304 and the first rotating barrel 302 to limit the position of the inner core group, so that the wire core 74 and the steel strand 75 therein can be completely attached to the surface of the clamping tube sleeve 76, thereby improving the stability of the insulation.

[0071] The protective jacket 71 is made by the extruder 4, and the core assembly is arranged inside the protective jacket 71. The cable 7 is fully cooled and formed by the coolant in the cooler 2, and the filling layer 77 is filled by the existing technology to form a complete cable 7.

Claims

1. A process for processing an insulated cable, the insulated cable (7) comprising an inner core group and a protection group, the inner core group comprising a conductor core (74), a steel strand (75), and a clamping tube sleeve (76), the surface of the conductor core (74) being provided with a conductor shielding layer (73), the surface of the conductor shielding layer (73) being provided with an insulating layer (72); the insulating layer (72) being clamped to the upper surface of the clamping tube sleeve (76); the steel strand (75) being clamped to the lower surface of the clamping tube sleeve (76); the protection group comprising a protective outer jacket (71) and a filling layer (77); the clamping tube sleeve (76) being sleeved inside the protective outer jacket (71); the filling layer (77) being filled on the surfaces of the protective outer jacket (71) and the clamping tube sleeve (76); the steel strand (75) being arranged in a flat shape; the process for processing an insulated cable based on the above-mentioned structural composition comprising the following steps: Step 1: Processing the insulated cable through a processing device; Step 2: fixing and clamping the core group by means of a clamping assembly (300) in the processing device; Step 3: Extruding the raw material of the protective jacket (71) through the conveying component (100) in the processing device; Step 4: preheating the protective jacket (71) raw material and the core group by means of a heating component (200) in the processing device; Step 5: Cooling the processed cable (7) by means of a cooler (2), and pulling and extruding the cooled cable (7) by means of an external pulling device; In the step 3, when the raw material of the protective jacket (71) is extruded through the conveying assembly (100) in the processing device, the servo motor (101) is arranged on the surface of the raw material bin (6), and the vibration generated by the servo motor (101) when working is absorbed by the raw material bin (6). The raw material is loaded through the raw material bin (6). When the device is working, the raw material is always in a micro-vibration state, thereby accelerating the creeping of the raw material; The processing device comprises a shell (1), a first support frame (3) and a second support frame (5) are fixedly connected inside the shell (1), an extruder (4) for molding the protective jacket (71) is fixedly connected above the first support frame (3), the raw material bin (6) is fixed to the upper part of the shell (1), and a conveying assembly (100) for extruding the raw material of the protective jacket (71) is arranged below the raw material bin (6); a heating assembly (200) for preheating the raw material of the protective jacket (71) and the insulating material is arranged above the second support frame (5); and a clamping assembly (300) for clamping the core group is arranged on the right side of the second support frame (5); The conveying component (100) comprises a servo motor (101), an arc-shaped extrusion block (104), a piston disc (106) and an extrusion chamber (107); the conveying component (100) realizes extrusion of raw materials by means of the piston disc (106) sliding back and forth inside the extrusion chamber (107); the conveying component (100) realizes the flow of hot air in the heating component (200) by means of the piston disc (106) sliding back and forth; the conveying component (100) realizes the efficient clamping effect of the clamping component (300) on each insulating material by means of the rotation of the arc-shaped extrusion block (104); The heat component (200) comprises a heater (201), a sleeve (203), a heating tube (207) and a conical exhaust sleeve (208); the heating component (200) conducts heat to the raw material through the heating tube (207); and the heating component (200) conducts heat to the surface of the core group through the conical exhaust sleeve (208); the clamping component (300) comprises a base (301), an arc-shaped matching plate (305) and an extrusion plate (306); the clamping component (300) changes the heating range of the conical exhaust sleeve (208) through the extrusion plate (306); The output end of the servo motor (101) is fixedly connected to a rotating shaft (102), the surface of the rotating shaft (102) is fixedly connected to an arc-shaped swing plate (103), and the arc-shaped extrusion block (104) is fixedly connected to the lower end of the arc-shaped swing plate (103); the piston disc (106) slides on the inner surface of the extrusion chamber (107), the surface of the piston disc (106) is fixedly connected to a T-shaped motion rod (105), and the T-shaped motion rod (105) is slidably connected to the arc-shaped swing plate (103); the surface of the extrusion chamber (107) is provided with an air inlet (108), an exhaust pipe (109) and a delivery pipe (110), the extrusion chamber (107) is connected to the raw material chamber (6), a one-way valve is provided inside the delivery pipe (110), and the delivery pipe (110) is connected to the surface of the extruder (4); A heating rod (202) is fixedly arranged on the surface of the heater (201); the sleeve (203) is sleeved on the surface of the heating rod (202); a connecting port (204) and a connecting pipe (205) are provided on the surface of the sleeve (203); the connecting port (204) is connected to the exhaust pipe (109); a gas pipeline (206) is connected to the bottom of the connecting pipe (205); the heating pipe (207) and the conical exhaust sleeve (208) are respectively connected to the two ends of the gas pipeline (206); The base (301) is fixedly arranged on the surface of the second support frame (5); the surface of the base (301) is rotatably connected to the first rotating barrel (302); the surface of the base (301) is fixedly connected to the first limiting plate (303); the surface of the first limiting plate (303) is rotatably connected to the conical shaft (304); the surface of the base (301) is slidably connected to the second limiting plate (307); the surface of the second limiting plate (307) is rotatably connected to the second rotating barrel (308); the arc-shaped matching plate (305) is fixedly arranged above the second limiting plate (307); the surface of the second limiting plate (307) is sleeved with a compression spring (309); the arc-shaped matching plate (305) is fixedly connected to the extrusion plate (306); the surface of the base (301) is rotatably connected to the arc-shaped limiting plate (310); a reset spring is arranged between the arc-shaped limiting plate (310) and the base (301); The left side of the housing (1) is fixedly connected to a cooler (2), the cable (7) is passed through the surface of the cooler (2), and a flowing coolant is provided inside the cooler (2).

2. The insulated cable processing process according to claim 1, characterized in that: The interior of the clamping tube sleeve (76) is arranged to be hollow, thereby reducing the overall weight of the cable (7); after the cable (7) is produced, the hollow portion may be filled according to its usage scenario to improve its strength and flexibility; another set of conductive wire cores (74) may also be added to the hollow portion to enhance current conductivity.

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