Data line and manufacturing method and manufacturing system thereof

Abstract

This invention discloses a data cable manufacturing method, including extruding an insulated battery core; covering a shielding layer to form a wire core; synchronously feeding the wire core through a braided sheath; sequentially extruding the wire core and the braided sheath through extrusion and tube extrusion to form a wire protected by an insulating sheath with an embedded braided sheath; welding and assembling the wire to form a data cable; a manufacturing system; and a data cable. This invention employs a dual extrusion molding method, where the wire core, composed of an insulated battery core and a shielding layer, passes through a braided sheath with a diameter larger than the wire core. The braided sheath and the wire core are synchronously and at the same speed through extrusion and tube extrusion. After covering the wire core and the braided sheath with a low-viscosity molten plastic fluid, a high-viscosity molten plastic tube is then covered with the molten plastic fluid and fused to form an insulating sheath. This embeds the braided sheath within the insulating sheath to protect the wire core, effectively improving tensile strength while also providing the advantages of insulating sheath protection.

Description

Technical Field

[0001] This invention relates to the field of data cable processing technology, specifically to a data cable and its manufacturing method and system. Background Technology

[0002] Data cables are commonly used charging and data transmission cables for electronic products. The manufacturing process of a typical data cable involves steps such as extruding insulation core, wrapping with a shielding layer, extruding insulation sheath protection, wire end processing and terminal soldering, and terminal protection installation.

[0003] In the aforementioned data cable manufacturing process, the data cable is only protected by an insulating sheath, resulting in low tensile strength. Since data cables are frequently carried and used, they inevitably experience pulling and bending during handling. Therefore, conventionally manufactured data cables are prone to external damage and breakage during use. To improve the tensile strength of the data cable, conventional improvements typically involve adding braided protection after the extrusion of the insulating sheath, thus adding a braided layer to the outside of the data cable to enhance its tensile strength. However, the external braided sheath is easily worn or scratched due to its surface structure, and it is also susceptible to corrosion due to moisture absorption. Summary of the Invention

[0004] The purpose of this invention is to provide a data cable and its manufacturing method and system to solve the technical problems of insufficient tensile strength of conventional data cables protected by insulating sheaths, and the susceptibility of data cables protected by external braided sheaths to wear and corrosion.

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0006] A method for making a data cable includes the following steps:

[0007] Step 100: Pass multiple copper wires into multiple first extrusion zones and convey them at the same speed. In each of the multiple first extrusion zones, molten plastic fluid of different colors is extruded outside the multiple copper wires to wrap the copper wires and form multiple insulated battery cells.

[0008] Step 200: After spirally winding multiple insulated battery cells around a core rope to form a battery cell bundle, a shielding layer is spirally wound around the outside of the battery cell bundle to form a wire core. The wire core is then inserted into a braided sleeve with a diameter larger than the wire core and simultaneously inserted into the second extrusion zone and conveyed at a constant speed.

[0009] Step 300: The wire core and the braided sleeve are sequentially subjected to extrusion extrusion and tube extrusion in the second extrusion zone. The braided sleeve is immersed in the molten plastic fluid extruded by extrusion extrusion and adheres to the surface of the wire core. The molten plastic tube extruded by tube extrusion wraps the molten plastic fluid and fuses to form an insulating sleeve, so as to embed the braided sleeve and include the wire core to form a wire.

[0010] Step 400: After the wire is cooled, cut the baseline to the set length as required, transfer the baseline and strip the wires at both ends to expose the copper wires, polish the copper wires, tin them and align them with the terminal components for soldering, and install anti-tension rings and terminal caps at both ends of the baseline in sequence to obtain the data cable.

[0011] A manufacturing system for the above-mentioned data cable manufacturing method includes:

[0012] Multiple unwinding machines are used to unwind multiple copper wires and core ropes separately;

[0013] Multiple first extruders are located downstream of the production lines of multiple unwinders, and are used to extrude multiple copper wires to obtain insulated battery cells;

[0014] A twisting machine is located downstream of the production line of multiple first extruders to receive multiple insulated battery cells and core ropes, and guides the multiple insulated battery cells to spirally wind onto the core ropes to form a battery cell bundle for transport.

[0015] A winding machine is located downstream of the production line of the twisting machine to spirally wind the shielding layer onto the battery core bundle to form a wire core by rotating around the battery core bundle.

[0016] A braiding machine, located downstream of the winding machine's production line, is used to synchronously and at the same speed convey the braided sleeve with a diameter larger than that of the wire core to the wire core.

[0017] The second extruder is located downstream of the production line of the braiding machine. The second extruder has an extrusion channel and an extrusion tube channel. The extrusion channel extrudes molten plastic fluid to wrap around the wire core and immerse the braided sleeve. The extrusion tube channel extrudes molten plastic tube body including an insulating rubber sleeve formed by the fusion of molten plastic fluid and the embedded braided sleeve, so as to obtain wire.

[0018] The wire processing machine is located downstream of the second extruder. It is used to cool the wire and cut the cooled wire to a baseline according to a set length. The two ends of the baseline are stripped and then arranged in sequence for tinning.

[0019] A welding machine, located downstream of the wire processing machine, is used to weld the two ends of the baseline to terminal pieces;

[0020] An assembly machine, located downstream of the welding machine, installs tensile rings at both ends of the baseline and installs terminal covers to connect the tensile rings and cover and protect the terminal components, thereby obtaining a data cable.

[0021] As a preferred embodiment of the present invention, the second extruder includes a machine body, and an extrusion head is provided at the end of the machine body. The extrusion head has a wire threading channel that is axially through it. A die core, an inner die sleeve and an outer die sleeve are respectively provided at the discharge end of the extrusion head, and the die core, the inner die sleeve and the outer die sleeve are coaxially fitted together in sequence.

[0022] An extrusion channel is formed between the mold core and the inner mold sleeve. The extrusion channel is connected to the threading channel to extrude molten plastic fluid onto the passing wire core and braided sleeve. An extrusion tube channel is formed between the inner mold sleeve and the outer mold sleeve. The extrusion tube channel is connected to the threading channel to wrap the molten plastic tube again onto the wire core and braided sleeve covered by the molten plastic fluid and fuse them to form an insulating sleeve, thereby embedding the braided sleeve inside the formed insulating sleeve.

[0023] In a preferred embodiment of the present invention, the machine body includes a screw extrusion cylinder, and a connecting nozzle is provided at the discharge end of the screw extrusion cylinder. The screw extrusion cylinder is arranged perpendicularly to the die head and connected through the connecting nozzle to extrude molten plastic into the die head.

[0024] As a preferred embodiment of the present invention, the discharge end of the machine head is coaxially provided with a shallow groove, a medium groove and a deep groove in sequence, the mold core is installed in the deep groove and communicates with the threading channel, and the inner mold sleeve and the outer mold sleeve are respectively installed in the medium groove and the shallow groove;

[0025] The middle groove is provided with an inner ring groove, which is connected to the extrusion channel. The shallow groove is provided with an outer ring groove, which is connected to the extrusion tube channel.

[0026] As a preferred embodiment of the present invention, a connecting groove is provided on the side wall of the machine head, and the connecting nozzle is installed in the connecting groove. A branch channel is provided in the machine head, the main end of the branch channel is connected to the bottom of the connecting groove, and its two branches are respectively connected to the inner ring groove and the outer ring groove, so as to extrude the same molten plastic into the inner ring groove and the outer ring groove respectively.

[0027] As a preferred embodiment of the present invention, two movable valve stems are provided on the outside of the die head. The end of the valve stem located outside the die head is controlled by a hydraulic cylinder to extend into the die head, while the end of the valve stem located inside the die head is provided with a plug. The two plugs are respectively movable in the two branches of the manifold, so as to adjust the extrusion flow rate of the extrusion channel and the extrusion tube channel respectively by adjusting the flow rate of the two branches of the manifold.

[0028] As a preferred embodiment of the present invention, a cooling channel is provided inside the outer mold sleeve, and the cooling channel surrounds the discharge section of the outer mold sleeve to initially cool the outer surface of the molten plastic tube extruded from the extrusion channel.

[0029] An inlet pipe and an outlet pipe are provided on the outside of the outer mold sleeve. Both the inlet pipe and the outlet pipe are connected to the cooling channel to continuously supply cooling water to the cooling channel.

[0030] As a preferred embodiment of the present invention, the cooling channel includes an inlet channel and an outlet channel, both of which are annular and surround the discharge section of the outer mold sleeve.

[0031] Both the inlet channel and the outlet channel have a circulation channel that connects to the outside. The inlet pipe and the outlet pipe are connected to the inlet channel and the outlet channel respectively through two circulation channels.

[0032] Multiple independent transfer channels are connected between the water inlet channel and the water outlet channel, and the multiple transfer channels surround the discharge section of the outer mold sleeve.

[0033] A data cable manufactured using the above-described data cable manufacturing method and / or data cable manufacturing system includes:

[0034] The core rope provides internal tensile strength;

[0035] Multiple insulated battery cells are spirally wound around the core rope;

[0036] A shielding layer is spirally wound around the plurality of insulated battery cells to form a wire core;

[0037] An insulating rubber sheet is wrapped around the outside of the shielding layer to protect the insulated battery cell and the shielding layer;

[0038] A braided sleeve is embedded inside the insulating rubber sheet to increase the tensile strength of the insulating rubber sheet and form a wire;

[0039] Two terminals are respectively disposed at both ends of the wire and welded to the ends of the plurality of insulated battery cells;

[0040] Two tensile rings are respectively located at both ends of the wire and tightly wrapped;

[0041] Two sets of terminal covers are respectively installed on the two terminals and respectively snapped onto the two tensile rings.

[0042] Compared with the prior art, the present invention has the following advantages:

[0043] This invention employs a dual extrusion molding method. The wire core, consisting of an insulating core and a shielding layer, is passed through a braided sleeve with a diameter larger than the wire core. The braided sleeve and the wire core undergo simultaneous and equal-speed extrusion and tube extrusion. After covering the wire core and the braided sleeve with a low-viscosity molten plastic fluid, a high-viscosity molten plastic tube is then covered on the outside of the molten plastic fluid and fused together to form an insulating sleeve. This embeds the braided sleeve within the insulating sleeve to protect the wire core, effectively improving tensile strength while also providing the advantages of insulating sleeve protection. Attached Figure Description

[0044] To more clearly illustrate the embodiments of the present invention or the technical solutions in 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 merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0045] Figure 1 A flowchart illustrating the data cable manufacturing method provided in an embodiment of the present invention;

[0046] Figure 2 This is a block diagram of the data cable manufacturing system provided in an embodiment of the present invention;

[0047] Figure 3 This is a schematic diagram of the second extruder structure of the data cable manufacturing system provided in an embodiment of the present invention;

[0048] Figure 4 This is a schematic diagram of the head section structure of the data cable manufacturing system provided in an embodiment of the present invention;

[0049] Figure 5 This is a schematic diagram of the cable threading channel structure of the data cable making system provided in an embodiment of the present invention;

[0050] Figure 6 A schematic diagram of the core, inner mold sleeve, and outer mold sleeve of the data cable manufacturing system provided in an embodiment of the present invention;

[0051] Figure 7 A schematic diagram of the valve stem portion of the data cable manufacturing system provided in this embodiment of the invention;

[0052] Figure 8 This is a schematic diagram of the data cable structure provided in an embodiment of the present invention;

[0053] Figure 9 This is a schematic diagram of the terminal portion structure of a data cable provided in an embodiment of the present invention.

[0054] The labels in the diagram represent the following:

[0055] 1-Unwinder; 2-First extruder; 3-Twisting machine; 4-Winding machine; 5-Bragging machine; 6-Second extruder; 7-Wire processing machine; 8-Welding machine; 9-Assembly machine;

[0056] 61-Machine body; 62-Machine head; 63-Mold core; 64-Inner mold sleeve; 65-Outer mold sleeve; 66-Valve stem; 67-Inlet pipe; 68-Outlet pipe;

[0057] 611-Screw extruder barrel; 612-Connecting nozzle; 621-Wire threading channel; 622-Shallow groove; 623-Medium groove; 624-Deep groove; 625-Inner annular groove; 626-Outer annular groove; 627-Connecting groove; 628-Bifurcation channel; 641-Extrusion channel; 651-Extrusion tube channel; 652-Cooling flow channel; 653-Water inlet flow channel; 654-Water outlet flow channel; 655-Circulation flow channel; 656-Transfer flow channel; 661-Plug;

[0058] 10-Core rope; 20-Insulated battery core; 30-Shielding layer; 40-Insulating rubber; 50-Braided sleeve; 60-Terminal; 70-Tension ring; 80-Terminal cover. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] like Figure 1 As shown, the present invention provides a method for manufacturing a data cable, comprising the following steps:

[0061] Step 100: Pass multiple copper wires into multiple first extrusion zones and convey them at the same speed. In each of the multiple first extrusion zones, molten plastic fluid of different colors is extruded outside the multiple copper wires to wrap the copper wires and form multiple insulated battery cells.

[0062] Step 200: After spirally winding multiple insulated battery cells around a core rope to form a battery cell bundle, a shielding layer is spirally wound around the outside of the battery cell bundle to form a wire core. The wire core is then inserted into a braided sleeve with a diameter larger than the wire core and simultaneously inserted into the second extrusion zone and conveyed at a constant speed.

[0063] Step 300: The wire core and the braided sleeve are sequentially subjected to extrusion extrusion and tube extrusion in the second extrusion zone. The braided sleeve is immersed in the molten plastic fluid extruded by extrusion extrusion and adheres to the surface of the wire core. The molten plastic tube extruded by tube extrusion wraps the molten plastic fluid and fuses to form an insulating sleeve, so as to embed the braided sleeve and include the wire core to form a wire.

[0064] Step 400: After the wire is cooled, cut the baseline to the set length as required, transfer the baseline and strip the wires at both ends to expose the copper wires, polish the copper wires, tin them and align them with the terminal components for soldering, and install anti-tension rings and terminal caps at both ends of the baseline in sequence to obtain the data cable.

[0065] The data cable manufacturing method of this embodiment mainly involves first forming multiple insulated cores from copper wire in the first extrusion zone, then winding these insulated cores onto a core rope and wrapping them with a shielding layer to form a wire core. The wire core passes through a braided sleeve with a diameter larger than its own and is transported synchronously with the braided sleeve, thus creating a gap between the wire core and the braided sleeve. After the wire core and the braided sleeve pass through the second extrusion zone, the second extrusion zone first extrudes molten plastic fluid to immerse the braided sleeve and fill the gap between the wire core and the braided sleeve. Then, it extrudes a molten plastic tube to wrap around and fuse with the molten plastic fluid, thereby embedding the braided sleeve between the formed insulating sheaths to form a wire. After frequent cooling, cutting, welding, and installation, a data cable with high tensile strength is formed.

[0066] In this embodiment, steps 100 and 400 of the data cable manufacturing method are conventional manufacturing methods for existing ordinary data cables. The difference is that steps 300 and 400, compared with existing ordinary data cable manufacturing methods, can simultaneously transport the braided sheath and the wire core through the second extrusion zone. In this process, through the flow of molten plastic of different viscosities and the molten plastic tube, the braided sheath is embedded between the formed insulating sheath, which improves the tensile strength of the data cable. Moreover, the braided sheath is located inside the insulating sheath and can obtain better protection, effectively solving the problem of easy wear and breakage of the braided sheath.

[0067] In order to manufacture data cables with higher tensile strength according to the above data cable manufacturing method, such as Figure 2 As shown, based on the above data cable manufacturing method, a data cable manufacturing system is provided, including:

[0068] Multiple unwinding machines 1 are used to unwind multiple copper wires and core ropes respectively;

[0069] Multiple first extruders 2 are located downstream of multiple unwinders 1 in the production line and are used to extrude multiple copper wires to obtain insulated battery cells.

[0070] Twisting machine 3 is located downstream of the production line of multiple first extruders 2 to receive multiple insulated battery cells and core ropes, and guide multiple insulated battery cells to spirally wind onto the core ropes to form battery cell bundles for transport.

[0071] The winding machine 4 is located downstream of the production line of the twisting machine 3, so as to spirally wind the shielding layer onto the battery core bundle to form the wire core by rotating around the battery core bundle;

[0072] Braiding machine 5 is located downstream of winding machine 4 on the production line and is used to synchronously and equally convey braided sleeves with a braided diameter larger than that of the wire core to the wire core.

[0073] The second extruder 6 is located downstream of the production line of the braiding machine 5. The second extruder 6 has an extrusion channel 641 and an extrusion tube channel 651. The extrusion channel 641 extrudes molten plastic fluid to wrap around the wire core and immerse the braided sleeve. The extrusion tube channel 651 extrudes molten plastic tube body including an insulating rubber sleeve with an embedded braided sleeve formed by the fusion of molten plastic fluid, so as to obtain wire.

[0074] The wire processing machine 7 is located downstream of the second extruder 6. It is used to cool the wire and cut the cooled wire to a baseline according to a set length. The two ends of the baseline are stripped and then arranged in sequence for tinning.

[0075] Welding machine 8, located downstream of wire processing machine 7, is used to weld the two ends of the baseline to the terminal pieces;

[0076] Assembly machine 9, located downstream of welding machine 8, installs tensile rings at both ends of the baseline and installs terminal covers to connect the tensile rings and cover and protect the terminal components to obtain the data line.

[0077] The manufacturing system of this embodiment mainly consists of an unwinding machine 1 working with a first extruder 2 to form insulated cores from copper wire. A twisting machine 3 and a winding machine 4 wrap multiple insulated cores with core ropes and then wrap a shielding layer to form wire cores. A braiding machine 5 can braid a braided sleeve with a diameter larger than that of the wire core around the wire core, so that the wire core and the braided sleeve pass through the second extrusion zone 6 at the same speed after being passed through the sleeve, forming an insulating rubber sleeve on the outside of the wire core and the braid to form a wire. A wire processing machine 7, a welding machine 8, and an assembly machine 9 can weld the two ends of the wire to terminals and install terminal covers to form a data cable, thereby automating the entire data cable manufacturing process.

[0078] In order to ensure that the wire core passes through the braided sleeve and is conveyed synchronously and at the same speed as the braided sleeve, a tube is set between the braiding machine 5 and the second extruder 6. The wire core passes through the tube for conveying, while the braided sleeve is braided outside the tube. Thus, when the wire core and the braided sleeve are axially conveyed, the wire core is always located in the middle of the braided sleeve and is conveyed synchronously and at the same speed as the braided sleeve.

[0079] In this embodiment, the unwinding machine 1, the first extruder 2, the twisting machine 3, the winding machine 4, the braiding machine 5, the wire processing machine 7, the welding machine 8, and the assembly machine 9 are all commonly used equipment on ordinary data cable production lines. The difference lies in the location of each piece of equipment on the production line, but their functions are the same. They are conventional machines in automated data cable production lines and will not be described in detail.

[0080] The second extruder 6 can extrude molten plastic tubes and molten plastic fluids of different viscosities to form an insulating sleeve on the wire core and braided sheath. In the production of ordinary data cables, the insulating sleeve is still formed by the same first extruder 2 extruding a molten plastic to cover the wire core. If the viscosity of this molten plastic is too low, it is difficult to form a regular insulating sleeve. If the viscosity of this molten plastic is too high, it is difficult to melt the braided sheath inside.

[0081] Therefore, as Figure 3-6 As shown, based on the aforementioned data cable manufacturing system, a second extruder capable of extruding two molten plastics of different viscosities is provided below, specifically:

[0082] The second extruder includes a machine body 61, and a machine head 62 is provided at the end of the machine body. The machine head 62 has a wire passage 621 that is axially through. A mold core 63, an inner mold sleeve 64 and an outer mold sleeve 65 are respectively provided at the discharge end of the machine head 62, and the mold core 63, the inner mold sleeve 64 and the outer mold sleeve 65 are coaxially fitted in sequence.

[0083] An extrusion channel 641 is formed between the core mold 63 and the inner mold sleeve 64. The extrusion channel 641 is connected to the threading channel 621 to extrude molten plastic fluid onto the passing wire core and braided sleeve. An extrusion tube channel 651 is formed between the inner mold sleeve 64 and the outer mold sleeve 65. The extrusion tube channel 651 is connected to the threading channel 621 to wrap the molten plastic tube again onto the wire core and braided sleeve covered by the molten plastic fluid and fuse them to form an insulating sleeve, thereby embedding the braided sleeve inside the formed insulating sleeve.

[0084] In this embodiment, the threading channel 621 is used to thread the wire core and the braided sleeve. The wire core and the braided sleeve pass through the die core 63. During this process, an extrusion channel 641 is formed between the die core 63 and the inner die sleeve 64, located around the wire core and the braided sleeve. An extrusion tube channel 651 is formed between the inner die sleeve 64 and the outer die sleeve 65, also located around the wire core and the braided sleeve. The extrusion tube channel 651 is located downstream of the extrusion channel 641. Thus, the extrusion channel 641 first extrudes molten plastic fluid to cover the wire core and the braided sleeve. The extrusion tube channel 651 then extrudes molten plastic tube body to wrap the molten plastic fluid so that it does not overflow. The two are compatible through the pores of the braided sleeve, thereby embedding the braided sleeve inside the formed insulating sleeve.

[0085] Based on the above embodiments, the specific method by which the machine body 61 conveys molten plastic to the machine head 62 is as follows:

[0086] like Figure 3 As shown, the machine body 61 includes a screw extrusion cylinder 611, and a connecting nozzle 612 is provided at the discharge end of the screw extrusion cylinder 611. The screw extrusion cylinder 611 is arranged perpendicularly to the die head 62 and connected through the connecting nozzle 612 to extrude molten plastic into the die head 62.

[0087] The screw extrusion barrel 611 is equipped with a heating element and a feed hopper. Plastic granules enter the screw extrusion barrel 611 through the feed hopper and are heated and melted. The screw extrusion barrel 611 then extrudes the molten plastic and discharges it from the connecting nozzle 612 into the threading channel 621 inside the die head 2. The threading channel 621 conveys the wire core and braided sleeve, and the molten plastic covers the wire core and braided sleeve.

[0088] Since the discharge end of the die head 62 needs to be coaxially mounted with the die core 63, the inner die sleeve 64 and the outer die sleeve 65, the following preferred embodiments are provided.

[0089] like Figure 4 , Figure 5 As shown, the discharge end of the head 62 is coaxially provided with a shallow groove 622, a medium groove 623 and a deep groove 624 in sequence. The mold core 63 is installed in the deep groove 624 and connects to the wire threading channel 621. The inner mold sleeve 64 and the outer mold sleeve 65 are installed in the medium groove 623 and the shallow groove 622 respectively.

[0090] The middle groove 623 is provided with an inner ring groove 625, which is connected to the extrusion channel 641. The shallow groove 622 is provided with an outer ring groove 626, which is connected to the extrusion channel 651.

[0091] Specifically, the mold core 63 has a through hole to connect to the threading channel 621, so that after the mold core 63 is installed in the deep groove 624, the wire core and the braided sleeve can pass through.

[0092] After the inner mold sleeve 64 is installed in the middle groove 623, a gap is formed between the inner wall of the inner mold sleeve 64 and the outer wall of the mold core 63 to form an extrusion channel 641. After the outer mold sleeve 65 is installed in the shallow groove 622, a gap is formed between the inner wall of the outer mold sleeve 65 and the outer wall of the inner mold sleeve 64 to form an extrusion tube channel 651.

[0093] Since the inner annular groove 625 is located within the middle groove 623, it communicates with the extrusion channel 641. Conversely, the outer annular groove 626 is located within the shallow groove 622, and thus communicates with the extrusion tube channel 651. Therefore, by feeding molten plastic into the inner annular groove 625 and the outer annular groove 626, molten plastic can be extruded outwards from the extrusion channel 641 and the extrusion tube channel 651.

[0094] Since it is necessary to convey molten plastic into the inner annular groove 625 and the outer annular groove 626, the following preferred embodiments are provided.

[0095] like Figure 4 , Figure 5As shown, a connecting groove 627 is provided on the side wall of the machine head 62, and a connecting nozzle 612 is installed in the connecting groove 627. A branch channel 628 is provided in the machine head 62. The main end of the branch channel 628 is connected to the bottom of the connecting groove 627, and its two branches are connected to the inner ring groove 625 and the outer ring groove 626 respectively, so as to extrude the same molten plastic into the inner ring groove 625 and the outer ring groove 626 respectively.

[0096] Specifically, the screw extrusion barrel 611 extrudes molten plastic into the connecting groove 627 through the connecting nozzle 612, and flows through the branch channel 628 into the inner ring groove 625 and the outer ring groove 626, thereby entering the extrusion channel 641 and the extrusion tube channel 651.

[0097] In order to better control the flow rate of the extrusion channel 641 and the extrusion tube channel 651 in extruding the molten plastic, so that the extrusion velocity of the molten plastic fluid and the molten plastic tube body is the same as the conveying velocity of the wire core and the braided sleeve, the following preferred embodiments are provided.

[0098] like Figure 5 , Figure 7 As shown, two movable valve stems 66 are provided on the outside of the die head 62. The end of the valve stem 66 located outside the die head 62 is controlled by a hydraulic cylinder to extend into the die head 62, while the end of the valve stem 66 located inside the die head 62 is provided with a plug 661. The two plugs 661 are respectively movable in the two branches of the manifold 628, so as to adjust the extrusion flow of the extrusion channel 641 and the extrusion tube channel 651 respectively by adjusting the flow of the two branches of the manifold 628.

[0099] Specifically, the valve stems 66 are movably inserted into the die head 62 and are independently controlled by the hydraulic cylinder. When the conveying speed of the core and braided sleeve decreases, the two valve stems 66 move inward into the die head 62, causing the two plugs 661 to move into the two branches of the manifold 628 respectively, thereby reducing the supply flow and thus reducing the extrusion speed. When the conveying speed of the core and braided sleeve increases, the two valve stems 66 move outward from the die head 62, causing the two plugs 661 to move away from the two branches of the manifold 628 respectively, thereby increasing the supply flow and thus increasing the extrusion speed.

[0100] After the molten plastic tube is extruded through the extrusion channel 651, due to its soft texture, it tends to aggregate downwards under gravity, resulting in uneven formation of the insulating sleeve. Therefore, it is necessary to pre-cool the extruded molten plastic tube radially to harden its surface and avoid uneven formation of the insulating sleeve. Based on this, the following preferred embodiments are provided.

[0101] like Figure 6 As shown, a cooling channel 652 is provided inside the outer mold sleeve 65. The cooling channel 652 surrounds the discharge section of the outer mold sleeve 65 to initially cool the outer surface of the molten plastic tube extruded from the extrusion channel 651.

[0102] An inlet pipe 67 and an outlet pipe 68 are provided on the outside of the outer mold sleeve 65. Both the inlet pipe 67 and the outlet pipe 68 are connected to the cooling channel 652 to continuously supply cooling water to the cooling channel 652.

[0103] The cooling channel 652 includes an inlet channel 653 and an outlet channel 654. Both the inlet channel 653 and the outlet channel 654 are annular and surround the discharge section of the outer mold sleeve 65.

[0104] Both the inlet channel 653 and the outlet channel 654 are equipped with a circulation channel 655 that connects to the outside. The inlet pipe 67 and the outlet pipe 68 are connected to the inlet channel 653 and the outlet channel 654 respectively through the two circulation channels 655.

[0105] Multiple independent transfer channels 656 are connected between the water inlet channel 653 and the water outlet channel 654, and the multiple transfer channels 656 surround the discharge section of the outer mold sleeve 65.

[0106] Specifically, a cooling channel 652 is provided inside the outer mold sleeve 65 to initially cool the extruded molten plastic tube. The cooling channel 652 includes an inlet channel 653 and an outlet channel 654. Both the inlet channel 653 and the outlet channel 654 are arranged around the discharge section of the outer mold sleeve 65, with the inlet channel 653 located downstream and the outlet channel 654 located upstream.

[0107] Furthermore, the inlet channel 653 and the outlet channel 654 are connected by multiple transfer channels 656 arranged around the discharge section of the outer mold sleeve 65. The inlet pipe 67 sends cooling water into the inlet channel 653 through the circulation channel 655. The cooling water in the inlet channel 653 enters the outlet channel 654 through the multiple transfer channels 656 and is discharged along the circulation channel 655 and the outlet pipe 68.

[0108] During this process, the inlet channel 653, the outlet channel 654, and multiple transfer channels 656 will all cool the area around the discharge section of the outer mold sleeve 65, thereby rapidly cooling and hardening the surface of the extruded molten plastic tube.

[0109] like Figure 8 , Figure 9 As shown, based on the above-described data cable manufacturing method and system, a data cable is provided, comprising:

[0110] Core cord 10 provides internal tensile strength;

[0111] Multiple insulated battery cells 20 are spirally wound around the core rope 10;

[0112] A shielding layer 30 is spirally wound around multiple insulated battery cores 20 to form a wire core;

[0113] Insulating rubber 40 is wrapped around the outside of the shielding layer 30 to protect the insulating cell 20 and the shielding layer 30;

[0114] Braided sheath 50 is embedded inside insulating rubber sheet 40 to improve the tensile strength of insulating rubber sheet 40 and form a wire;

[0115] Two terminals 60 are respectively located at both ends of the wire and welded to the ends of multiple insulated battery cells 20;

[0116] Two tensile rings, 70 mm each, are placed at both ends of the wire and tightly wrapped.

[0117] Two sets of terminal covers 80 are respectively installed on two terminals 60 and respectively snapped onto two tensile rings 70.

[0118] In this embodiment, the data cable mainly has a braided sleeve 50 embedded inside the insulating rubber sheet 40, which improves the tensile strength of the insulating rubber sheet 40. The insulating sheet 40 also protects the braided sleeve 50 from wear, thus improving the service life of the data cable. Furthermore, the braided sleeve 50 inside the insulating sheet 40 works in conjunction with the core rope 10 to effectively improve the tensile strength of the data cable.

[0119] The data cable in this embodiment is manufactured using the aforementioned data cable manufacturing method and system, thereby achieving automated manufacturing of data cables with higher tensile strength.

[0120] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A data cable manufacturing system, characterized in that, include: Multiple unwinding machines (1) are used to unwind multiple copper wires and core ropes respectively; Multiple first extruders (2) are located downstream of the production line of multiple unwinders (1) for extruding multiple copper wires to obtain insulated battery cells; Twisting machine (3) is located downstream of the production line of multiple first extruders (2) to receive multiple insulated battery cells and core ropes, and guide multiple insulated battery cells to spirally wind onto the core ropes to form battery cell bundles for transport. The winding machine (4) is located downstream of the production line of the twisting machine (3) to spirally wind the shielding layer onto the battery core bundle by rotating around the battery core bundle to form a wire core; The braiding machine (5) is located downstream of the production line of the winding machine (4) and is used to synchronously and equally convey the braided sleeve with a braided diameter greater than that of the core to the core. The second extruder (6) is located downstream of the production line of the braiding machine (5). The second extruder (6) has an extrusion channel (641) and an extrusion tube channel (651). The extrusion channel (641) extrudes molten plastic fluid to wrap the wire core and immerse the braided sleeve. The extrusion tube channel (651) extrudes molten plastic tube body including an insulating rubber sleeve formed by the fusion of molten plastic fluid and the embedded braided sleeve to obtain wire. The wire processing machine (7) is located downstream of the second extruder (6) and is used to cool the wire and cut the cooled wire according to the set length to obtain the baseline. The two ends of the baseline are stripped and then arranged in sequence for tinning. A welding machine (8), located downstream of the wire processing machine (7), is used to weld the two ends of the baseline to the terminal pieces; Assembly machine (9), located downstream of welding machine (8), installs tensile rings at both ends of baseline and installs terminal covers to connect tensile rings and cover and protect terminal parts to obtain data line; The second extruder includes a machine body (61), and a machine head (62) is provided at the end of the machine body. The machine head (62) has a wire threading channel (621) that is axially through. A mold core (63), an inner mold sleeve (64) and an outer mold sleeve (65) are respectively provided at the discharge end of the machine head (62), and the mold core (63), the inner mold sleeve (64) and the outer mold sleeve (65) are coaxially fitted in sequence. An extrusion channel (641) is formed between the core (63) and the inner mold sleeve (64). The extrusion channel (641) is connected to the threading channel (621) to extrude molten plastic fluid onto the passing wire core and braided sleeve. An extrusion tube channel (651) is formed between the inner mold sleeve (64) and the outer mold sleeve (65). The extrusion tube channel (651) is connected to the threading channel (621) to wrap the molten plastic tube again onto the wire core and braided sleeve covered by the molten plastic fluid to form an insulating sleeve, thereby embedding the braided sleeve inside the formed insulating sleeve. In this process, the second extruder (6) sequentially extrudes low-viscosity molten plastic fluid and high-viscosity molten plastic tube onto the wire core and the braided sleeve. The extruded low-viscosity molten plastic fluid can pass through the braided sleeve and contact the wire core and completely immerse the braided sleeve. The extruded high-viscosity molten plastic tube surrounds the low-viscosity molten plastic fluid to fuse and form an insulating sleeve, and the braided sleeve is embedded in the insulating sleeve. Furthermore, both the low-viscosity molten plastic fluid and the high-viscosity molten plastic tube are made of the same type of molten plastic; The machine body (61) includes a screw extrusion cylinder (611), and a connecting nozzle (612) is provided at the discharge end of the screw extrusion cylinder (611). The screw extrusion cylinder (611) is arranged perpendicularly to the die head (62) and connected through the connecting nozzle (612) to extrude molten plastic into the die head (62). A connecting groove (627) is provided on the side wall of the machine head (62), and the connecting nozzle (612) is installed in the connecting groove (627). A branch channel (628) is provided in the machine head (62). The main end of the branch channel (628) is connected to the bottom of the connecting groove (627), and the two branches of the branch channel (628) are respectively connected to the extrusion channel (641) and the extrusion tube channel (651). Two movable valve stems (66) are provided on the outside of the die head (62). The end of the valve stem (66) located outside the die head (62) is controlled by a hydraulic cylinder to extend into the die head (62), while the end of the valve stem (66) located inside the die head (62) is provided with a plug (661). The two plugs (661) are respectively movable in the two branches of the manifold (628) so as to adjust the extrusion flow of the extrusion channel (641) and the extrusion tube channel (651) respectively by adjusting the flow of the two branches of the manifold (628).

2. The data cable manufacturing system according to claim 1, characterized in that, The discharge end of the machine head (62) is coaxially provided with a shallow groove (622), a medium groove (623) and a deep groove (624) in sequence. The mold core (63) is installed in the deep groove (624) and connects to the wire threading channel (621). The inner mold sleeve (64) and the outer mold sleeve (65) are respectively installed in the medium groove (623) and the shallow groove (622). The middle groove (623) is provided with an inner ring groove (625), and the inner ring groove (625) is connected to the extrusion channel (641). The shallow groove (622) is provided with an outer ring groove (626), and the outer ring groove (626) is connected to the extrusion channel (651).

3. The data cable manufacturing system according to claim 2, characterized in that, The two branches of the branch channel (628) are respectively connected to the inner ring groove (625) and the outer ring groove (626) to extrude the same molten plastic into the inner ring groove (625) and the outer ring groove (626) respectively.

4. A data cable manufacturing system according to any one of claims 1-3, characterized in that, The outer mold sleeve (65) is provided with a cooling channel (652), which surrounds the discharge section of the outer mold sleeve (65) to initially cool the outer surface of the molten plastic tube extruded by the extrusion channel (651). An inlet pipe (67) and an outlet pipe (68) are provided on the outside of the outer mold sleeve (65). Both the inlet pipe (67) and the outlet pipe (68) are connected to the cooling channel (652) to continuously supply cooling water to the cooling channel (652).

5. A data cable manufacturing system according to claim 4, characterized in that, The cooling channel (652) includes an inlet channel (653) and an outlet channel (654), both of which are annular and surround the discharge section of the outer mold sleeve (65). Both the inlet channel (653) and the outlet channel (654) have a circulation channel (655) that connects to the outside. The inlet pipe (67) and the outlet pipe (68) are connected to the inlet channel (653) and the outlet channel (654) respectively through the two circulation channels (655). Multiple independent transfer channels (656) are provided between the water inlet channel (653) and the water outlet channel (654), and the multiple transfer channels (656) surround the discharge section of the outer mold sleeve (65).

6. A data cable, characterized in that, The data cable is manufactured using the data cable manufacturing system according to any one of claims 1-5; the data cable comprises: Core rope (10) provides internal tensile strength; Multiple insulated battery cells (20) are spirally wound around the core rope (10); A shielding layer (30) is spirally wound around a plurality of the insulating cells (20) to form a wire core; An insulating rubber sheet (40) is wrapped around the outside of the shielding layer (30) to protect the insulating cell (20) and the shielding layer (30). A braided sleeve (50) is embedded inside the insulating rubber sheet (40) to improve the tensile strength of the insulating rubber sheet (40) and form a wire; Two terminals (60) are respectively disposed at both ends of the wire and welded to the ends of the plurality of insulated cells (20); Two tensile rings (70) are respectively placed at both ends of the wire and tightly wrapped; Two sets of terminal covers (80) are respectively installed on the two terminals (60) and respectively snapped onto the two tensile rings (70).

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