A b1-level high-flame-retardant shielding network wire manufacturing device and manufacturing process thereof

Abstract

The application relates to a B-grade high-flame-retardant shielding network line manufacturing equipment, which comprises a rack, a first wire combining mechanism, a second wire combining mechanism, an injection mechanism and a winding mechanism arranged on the rack in sequence along a production direction, the first wire combining mechanism is used for assembling and manufacturing between a first shielding layer and a plurality of second wire cores and a first wire core, the second wire combining mechanism is used for assembling and manufacturing between a second shielding layer and a third wire core and a second wire core, the first wire combining mechanism is used for assembling and manufacturing between a third shielding layer, a reinforcing rib and a protective layer and a third wire core, and the B-grade high-flame-retardant shielding network line is formed, and the winding mechanism is used for winding the formed B-grade high-flame-retardant shielding network line into a bundle. The application solves the problem that the existing multi-layer structure needs more processes, and when automatic one-time production and manufacturing are carried out, more production equipment leads to the problem of reduced production efficiency.

Description

Technical Field

[0001] This invention relates to the field of network power facility technology, and in particular to a B1-grade high flame-retardant shielded network cable manufacturing equipment and its manufacturing process. Background Technology

[0002] A network cable, also known as a network connector cable, is a medium used to connect one network device to another and transmit information. It is a fundamental component of a network, primarily used in structured cabling systems for connecting analog or digital communication equipment, interconnecting hubs and servers, and cabling connections for voice, telephone, and fax systems. In modern society, cable communication networks have become an indispensable part of people's lives. As a hub for human communication and an important tool for information exchange, cable communication networks often bear a huge workload and responsibility.

[0003] Patent document CN104751991A discloses a cable and its manufacturing method, applicable to the technical field of cables. The cable includes a first sheath, a first shielding layer, a first cable core, and a cable core covering layer. The first cable core includes several second cable cores, which are twisted together and rotated. One second cable core is located in the center, with the remaining second cable cores evenly distributed around it. The cable core covering layer rotates and wraps around the first cable core in a clockwise direction at an angle. The first shielding layer is wrapped around the outer edge of the cable core covering layer. The first shielding layer, the first cable core, and the cable core covering layer are all located inside the first sheath. The cable provided by this invention, in which the second cable core wraps the second shielding layer around the data cable, and the grounding cable is wrapped around the outer edge of the shielding layer, not only reduces the interference signal generated by the data cable but also reduces the diameter of the second cable core, thereby reducing the overall diameter of the cable. This separates the double shielding layers, avoiding mutual interference and greatly improving the shielding effect.

[0004] However, in actual use, the inventors discovered that the existing multi-layer structure requires many processes to process, and the large number of production equipment required for automated one-time production leads to a decrease in production efficiency. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by optimizing processing equipment and processes, thereby solving the problem that existing multi-layer structure processing requires many steps and that automated one-time production involves a large number of production equipment, leading to decreased production efficiency.

[0006] To address the above technical issues, the following technical solution is adopted:

[0007] A B1-grade high flame-retardant shielded network cable manufacturing equipment, comprising:

[0008] The machine frame includes a first wire bonding mechanism, a second wire bonding mechanism, an injection molding mechanism, and a winding mechanism, which are sequentially arranged on the machine frame along the production direction. The first wire bonding mechanism is used for assembling the first shielding layer and multiple second wire cores with the first wire core. The second wire bonding mechanism is used for assembling the second shielding layer and the third wire core with the second wire core. The first wire bonding mechanism is used for assembling the third shielding layer, reinforcing ribs, and protective layer with the third wire core to form a B1-grade high flame-retardant shielded wire. The winding mechanism is used to wind the formed B1-grade high flame-retardant shielded wire into a bundle.

[0009] Preferably, the first bonding mechanism includes a first bearing shaft, a first winding assembly, a plurality of second bearing shafts, and a first bonding assembly arranged sequentially on the frame along the production direction. The first bearing shaft is used to wind up and carry the first wire core, the first winding assembly is used to wind the first shielding layer around the outside of the first wire core, the plurality of second bearing shafts are respectively used to wind up and carry the plurality of second wire cores, and the first bonding assembly is used to attach the plurality of second wire cores at equal intervals to the outer wall of the first shielding layer.

[0010] Preferably, the first winding assembly includes a first rotating plate rotatably mounted on a frame at one end and used to support the shielding layer roll at the other end, a first support hole formed on the rotation axis of the first rotating plate, a first support frame rotatably mounted on the first rotating plate, a first guide roller rotatably mounted on the first support frame and used to guide the movement of the shielding layer, and a first elastic member mounted on the first rotating plate and used to force the first support frame to rotate toward the shielding layer roll.

[0011] Preferably, the second bonding mechanism includes a second winding assembly, a plurality of third bearing shafts and a second bonding assembly arranged sequentially on the frame along the production direction. The second winding assembly is used to wind the second shielding layer around the outside of the second wire core. The plurality of third bearing shafts are used to wind and carry the plurality of third wire cores respectively. The second bonding assembly is used to attach the plurality of third wire cores to the outer wall of the second shielding layer at equal intervals and to squeeze the second shielding layer inward and bend it to attach to the first shielding layer.

[0012] Preferably, the injection molding mechanism includes a third winding assembly, multiple fourth bearing shafts, a third wire bonding assembly, a powder coating assembly, an extruder, and a pressing assembly arranged sequentially on the frame along the production direction. The third winding assembly is used to wind a third shielding layer around the outside of the third wire core. The multiple fourth bearing shafts are used to wind and carry multiple reinforcing ribs respectively. The third wire bonding assembly is used to attach multiple reinforcing ribs at equal intervals to the outer wall of the third shielding layer and squeeze the second shielding layer to bend inward to form a curved part. The powder coating assembly is used to fill flame retardant material in the curved part. The machine is used to inject and mold a protective layer on the outside of the reinforcing ribs. The pressing assembly is used to press an anti-slip groove on the outer wall of the protective layer.

[0013] The first, second, and third wire combining assemblies each include a wire separating plate disposed on the frame, a positioning hole disposed in the middle of the wire separating plate, wire separating holes disposed at equal intervals along the circumference of the positioning hole on the wire separating plate, and a plurality of wire combining rollers disposed on the frame and used to guide the wires in the corresponding wire separating holes for wire combining.

[0014] Preferably, both the second winding assembly and the third winding assembly include a second rotating plate rotatably mounted on the frame at one end and used to support the shielding layer roll at the other end, a second support hole formed on the rotation axis of the second rotating plate, a second support frame rotatably mounted on the second rotating plate, a second guide roller rotatably mounted on the second support frame and used to guide the movement of the shielding layer, a second elastic member mounted on the second rotating plate and used to force the second support frame to rotate toward the shielding layer roll, and a pressing rod mounted on the frame and used to press the wound shielding layer to bend inward.

[0015] Preferably, the powder passing assembly includes a powder box disposed on the frame for holding flame retardant material, a pressing plate disposed vertically inside the powder box, a third elastic member disposed on the powder box for forcing the pressing plate to press the flame retardant material, a collection box disposed on the side of the powder box near the extruder for collecting excess flame retardant material adhering to the curved section, and a wire passing hole formed on the powder box and the collection box.

[0016] Preferably, the pressing assembly includes a cooling box disposed on the frame for cooling the protective layer, a mounting frame disposed on the cooling box, an embossing roller rotatably disposed on the mounting frame for embossing product information on the outer wall of the protective layer, and a plurality of pressing rollers spaced apart and rotatably disposed on the mounting frame for pressing and forming anti-slip grooves on the outer wall of the protective layer.

[0017] Preferably, the winding mechanism includes a winding roller rotatably mounted on the frame for winding the formed B1-grade high flame-retardant shielding wire, a movable seat mounted on the frame and movably mounted along the axial direction of the winding roller, and a positioning component mounted on the movable seat for positioning and winding the formed B1-grade high flame-retardant shielding wire.

[0018] The positioning assembly includes a support arm rotatably mounted on a movable base, a positioning through hole mounted on the support arm, a positioning protrusion formed on the inner annular surface of the positioning through hole for positioning the anti-slip groove, a support rod movably mounted on the support arm and whose two ends abut against the inner sides of the two ends of the take-up roller as the movable base moves, a fourth elastic element mounted on the support arm for forcing both ends of the support rod to extend out of the support arm, and a fifth elastic element mounted on the mounting base for forcing the support arm to rotate toward the take-up roller.

[0019] This application also provides a manufacturing process using the aforementioned B1-grade high flame-retardant shielded network cable manufacturing equipment, comprising the following steps:

[0020] Step 1: First bonding process, after the first shielding layer is wrapped around the outside of the first wire core by the first bonding mechanism, multiple second wire cores are attached to the outer wall of the first shielding layer at equal intervals;

[0021] Step 2: Second bonding process. After the second shielding layer is wrapped around the outside of multiple second wire cores by the second bonding mechanism, multiple third wire cores are attached to the outer wall of the second shielding layer at equal intervals. The third wire cores press the second shielding layer and bend it between two adjacent second wire cores until the second shielding layer is attached to the first shielding layer to form multiple first shielding areas.

[0022] Step 3: Injection molding process, a third shielding layer is wrapped around the outside of multiple third core wires, and after the third shielding layer is attached to the second shielding layer to form multiple second shielding areas, a protective layer is injection molded on the outside of the third shielding layer by an injection molding mechanism.

[0023] Step 4: The winding process involves cooling and solidifying the protective layer to form the B1-grade high flame-retardant shielded wire mesh. The B1-grade high flame-retardant shielded wire mesh is then wound into a bundle using a winding mechanism.

[0024] The beneficial effects of this invention are:

[0025] (1) In this invention, by setting the second shielding layer as a special structure, the rationality of the cooperation between multiple shielding layer structures is improved, so that a first shielding area for shielding the second wire core is formed between the first shielding layer and the second shielding layer, and a second shielding area for shielding the third wire core is formed between the third shielding layer and the second shielding layer, thereby achieving shielding of each wire core. The shielding effect is good, and during production, it is only necessary to sequentially wind the first shielding layer, the second shielding layer and the third shielding layer around the outside of the first wire core, the second wire core and the third wire core, and squeeze the second shielding layer to form a special structure during the wire bonding process, thereby reducing the production difficulty, reducing the number of shielding layers wound, improving production efficiency and reducing production costs.

[0026] (2) In this invention, the overall structural strength is improved by setting reinforcing ribs. The reinforcing ribs squeeze the third shielding layer between the adjacent second and third cores and bend it inward to form a bent part. This reduces the probability of the third shielding layer being damaged when the protective layer is squeezed or bumped, thus avoiding affecting the overall shielding effect. In addition, the formation of the bent part makes it easier to fill and attach flame retardant material between the third shielding layer and the protective layer, thereby improving the flame retardant effect and making it safer to use.

[0027] (3) In this invention, the anti-slip effect of the outer protective layer is improved by setting anti-slip grooves, which facilitates the winding during production and the installation and fixing during use. In addition, during the pressing and forming process of the anti-slip grooves, the limiting strips for limiting the reinforcing ribs on both sides are formed simultaneously, which reduces the production difficulty and facilitates production and processing. At the same time, it indirectly limits the third core and the second core, improving the stability of the internal structure and the stability of the shielding structure.

[0028] In summary, this B1-grade high flame-retardant shielded wire has the advantages of reasonable shielding structure, good shielding effect, high production efficiency and low production cost, and is especially suitable for the field of network power facility technology. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a B1-grade high flame-retardant shielded wire provided by the present invention.

[0031] Figure 2 This is a cross-sectional view of a B1-grade high flame-retardant shielded wire provided by the present invention.

[0032] Figure 3 Provided by the present invention Figure 2 A magnified view of a portion of point A in the middle.

[0033] Figure 4 This is a schematic diagram illustrating the manufacturing process of a B1-grade high flame-retardant shielded network cable provided by the present invention.

[0034] Figure 5 A perspective view of a network cable making device provided by the present invention.

[0035] Figure 6 A schematic diagram of the structure of the first winding assembly and the first bonding assembly provided by the present invention.

[0036] Figure 7 The diagram shows the structure of the second winding assembly, the second bonding assembly, the third winding assembly, and the third bonding assembly provided by the present invention.

[0037] Figure 8 Provided by the present invention Figure 7 A magnified view of a section at point B.

[0038] Figure 9 A state diagram of the first rotating plate and the second rotating plate supporting the shielding layer roll provided by the present invention.

[0039] Figure 10 This is a schematic diagram of the structure of the powder passing component provided by the present invention.

[0040] Figure 11 This is a perspective cross-sectional view of the powder-passing component provided by the present invention.

[0041] Figure 12 Provided by the present invention Figure 11 A magnified view of a section at point C.

[0042] Figure 13 This is a schematic diagram of the structure of the pressing component provided by the present invention.

[0043] Figure 14 This is a schematic diagram of the winding mechanism provided by the present invention.

[0044] Figure 15 Provided by the present invention Figure 14 A magnified view of a section at point D. Detailed Implementation

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0046] Example 1

[0047] like Figures 4-5 As shown, a B1-grade high flame-retardant shielded network cable manufacturing equipment includes:

[0048] The frame 2 is equipped with a first wire bonding mechanism 3, a second wire bonding mechanism 4, an injection molding mechanism 5, and a winding mechanism 6 arranged sequentially along the production direction. The first wire bonding mechanism 3 is used for the assembly of the first shielding layer 12 and multiple second cores 13 with the first core 11. The second wire bonding mechanism 4 is used for the assembly of the second shielding layer 14 and the third core 15 with the second core 13. After the first wire bonding mechanism 3 assembles the third shielding layer 16, the reinforcing rib 18, and the protective layer 17 with the third core 15, a B1-grade high flame-retardant shielded wire is formed. The winding mechanism 6 is used to wind the formed B1-grade high flame-retardant shielded wire into a bundle.

[0049] In this embodiment, by setting up a first bonding mechanism 3, a second bonding mechanism 4, an injection molding mechanism 5, and a winding mechanism 6 to perform the first bonding process, the second bonding process, the injection molding process, and the winding process in one go, the automated molding and production of B1 grade high flame retardant shielded wire is realized.

[0050] In detail, during production, firstly, the first bonding mechanism 3 wraps a first shielding layer 12 around the outside of the first wire core 11, and then attaches multiple second wire cores 13 at equal intervals to the outer wall of the first shielding layer 12; next, the second bonding mechanism 4 wraps a second shielding layer 14 around the outside of the multiple second wire cores 13, and then attaches multiple third wire cores 15 at equal intervals to the outer wall of the second shielding layer 14, with the third wire cores 15 pressing the second shielding layer 14 and bending it between adjacent second wire cores 13 until the second shielding layer 14 adheres to the first shielding layer 12 to form multiple first shielding areas 121; then the injection molding mechanism 5 wraps a first shielding layer 12 around the outside of the multiple third wire cores 15. The third shielding layer 16 has three layers of shielding. Multiple reinforcing ribs 18 are attached at equal intervals to the outer wall of the third shielding layer 16, which are pressed inward to form multiple bends 161. Flame-retardant material 19 is filled into the bends 161, and a protective layer 17 is injection molded on the outside of the third shielding layer 16. Finally, the injection molding mechanism 5 cools and solidifies the protective layer 17, thereby pressing and fixing the third shielding layer 16 to the second shielding layer 14 to form multiple second shielding areas 141. This allows the B1-grade high flame-retardant shielding wire mesh to be formed. At the same time, the winding mechanism 6 can provide traction and transmission power for the first wire core 11 during production.

[0051] Furthermore, such as Figures 5-6 As shown, the first bonding mechanism 3 includes a first bearing shaft 31, a first winding assembly 32, a plurality of second bearing shafts 33, and a first bonding assembly 34, which are sequentially arranged on the frame 2 along the production direction. The first bearing shaft 31 is used to wind up and carry the first wire core 11, the first winding assembly 32 is used to wind the first shielding layer 12 around the outside of the first wire core 11, the plurality of second bearing shafts 33 are respectively used to wind up and carry the plurality of second wire cores 13, and the first bonding assembly 34 is used to attach the plurality of second wire cores 13 at equal intervals to the outer wall of the first shielding layer 12.

[0052] In this embodiment, after the first winding assembly 32 and the first bearing shaft 31 are used to wind the first shielding layer 12 around the outside of the first wire core 11, the first bonding assembly 34 and multiple second bearing shafts 33 are used to attach multiple second wire cores 13 to the outer wall of the first shielding layer 12 at equal intervals.

[0053] Furthermore, such as Figure 6 as well as Figure 9As shown, the first winding assembly 32 includes a first rotating plate 321 with one end rotatably mounted on the frame 2 and the other end used to support the shielding layer roll, a first support hole 324 formed on the rotation axis of the first rotating plate 321, a first support frame 322 rotatably mounted on the first rotating plate 321, a first guide roller 323 rotatably mounted on the first support frame 322 and used to guide the movement of the shielding layer, and a first elastic member mounted on the first rotating plate 321 and used to force the first support frame 322 to rotate toward the shielding layer roll.

[0054] In this embodiment, by setting a first rotating plate 321 to support the shielding layer roll and cooperating with a first support frame 322, a first guide roller 323 and a first elastic element, it is easy to tighten the shielding layer and wrap it around the core, thereby improving the winding effect and winding stability.

[0055] In detail, during use, the shielding layer is supported on the first rotating plate 321, and the shielding layer is wound around the core after passing over the first guide roller 323. Under the action of the first elastic element, the first guide roller 323 rotates with the first support frame 322 to support and tighten the shielding layer. Then, the first rotating plate 321 is rotated to tighten the shielding layer around the core supported in the first support hole 324. When the shielding layer is unwound and rewound, the first support frame 322 can rotate away from the shielding layer roll, which plays a certain buffering role and avoids the shielding layer from breaking due to excessive traction force during winding.

[0056] Furthermore, such as Figure 5 as well as Figure 7 As shown, the second bonding mechanism 4 includes a second winding assembly 41, a plurality of third bearing shafts 42 and a second bonding assembly 43 arranged sequentially on the frame 2 along the production direction. The second winding assembly 41 is used to wind the second shielding layer 14 around the outside of the second wire core 13. The plurality of third bearing shafts 42 are respectively used to wind and carry the plurality of third wire cores 15. The second bonding assembly 43 is used to attach the plurality of third wire cores 15 at equal intervals to the outer wall of the second shielding layer 14 and to press the second shielding layer 14 inward to bend and attach it to the first shielding layer 12.

[0057] In this embodiment, after the second winding assembly 41 winds the second shielding layer 14 around the outside of the second wire core 13, the second bonding assembly 43 cooperates with multiple third bearing shafts 42 to attach multiple third wire cores 15 at equal intervals to the outer wall of the second shielding layer 14 and press the second shielding layer 14 inward to bend and attach it to the first shielding layer 12.

[0058] Furthermore, such as Figure 5 as well as Figure 7As shown, the injection molding mechanism 5 includes a third winding assembly 51, multiple fourth bearing shafts 52, a third wire bonding assembly 53, a powder passing assembly 54, an extruder 55, and a pressing assembly 56 arranged sequentially on the frame 2 along the production direction. The third winding assembly 51 is used to wind a third shielding layer 16 around the outside of the third wire core 15. The multiple fourth bearing shafts 52 are used to wind and carry multiple reinforcing ribs 18 respectively. The third wire bonding assembly 53 is used to attach the multiple reinforcing ribs 18 at equal intervals to the outer wall of the third shielding layer 16 and squeeze the second shielding layer 14 to bend inward to form a bent portion 161. The powder passing assembly 54 is used to fill the bent portion 161 with flame retardant material 19. The extruder is used to inject and mold a protective layer 17 around the reinforcing ribs 18. The pressing assembly 56 is used to press an anti-slip groove 172 on the outer wall of the protective layer 17.

[0059] In this embodiment, after the third winding assembly 51 winds the third shielding layer 16 around the outside of the third core 15, and with the assistance of the third bonding assembly 53 and multiple fourth bearing shafts 52, multiple reinforcing ribs 18 are evenly attached to the outer wall of the third shielding layer 16 and the third shielding layer 16 is squeezed inward to form a bent portion 161. Then, with the assistance of the powder passing assembly 54 and the extruder 55, flame retardant material 19 is filled between the injection-molded protective layer 17 and the bent portion 161. Then, with the assistance of the pressing assembly 56, anti-slip grooves 172 are pressed on the outer wall of the protective layer 17, and a limiting strip 171 is formed on the inner wall of the protective layer 17.

[0060] It should be noted that the multiple second bearing shafts 33, multiple third bearing shafts 42 and multiple fourth bearing shafts 52 are all equally spaced along the circumference of the first wire core 11, which facilitates the equal-spaced transport of the multiple second wire cores 13, multiple third wire cores 15 and multiple reinforcing ribs 18 around the first wire core 11.

[0061] In addition, the extruder 55 used for injection molding of PVC material protective layer 17 or PC material protective layer 17 and its installation method are existing technologies and will not be described in detail here.

[0062] Furthermore, such as Figures 7-9 As shown, both the second winding assembly 41 and the third winding assembly 51 include a second rotating plate 411 with one end rotatably mounted on the frame 2 and the other end used to support the shielding layer roll, a second support hole 416 formed on the rotation axis of the second rotating plate 411, a second support frame 412 rotatably mounted on the second rotating plate 411, a second guide roller 413 rotatably mounted on the second support frame 412 and used to guide the movement of the shielding layer, a second elastic member mounted on the second rotating plate 411 and used to force the second support frame 412 to rotate toward the shielding layer roll, and a pressing rod 414 mounted on the frame 2 and used to press the wound shielding layer to bend inward.

[0063] In this embodiment, by setting a second rotating plate 411 to support the shielding layer roll and cooperating with a second support frame 412, a second guide roller 413 and a second elastic element, it is easy to tighten the shielding layer and wrap it on the core, thereby improving the winding effect and winding stability. At the same time, the pressing rod 414 is used to press the shielding layer that has just been wrapped on the core inward to bend it, so as to avoid the later winding being too tight and unable to achieve inward bending.

[0064] In detail, during use, the shielding layer is supported on the second rotating plate 411, and the shielding layer is wound around the core after passing over the second guide roller 413. Under the action of the second elastic element, the second guide roller 413 rotates with the second support frame 412 to support and tighten the shielding layer. Then, the second rotating plate 411 is rotated to tighten the shielding layer and wrap it around the outer periphery of the core supported in the second support hole 416. When the shielding layer is wound and unwound, and when the pressing rod 414 presses the shielding layer inward and causes it to bend, the second support frame 412 can rotate away from the shielding layer roll, which plays a certain buffering role and avoids the shielding layer from breaking due to excessive traction force during winding.

[0065] It should be noted that the number of the first support frame 322 and the second support frame 412 is preferably two. The two first support frames 322 and the second support frame 412 are arranged opposite each other, so that the supporting and tightening effect of the two first guide rollers 323 and the two second guide rollers 413 can improve the tightness and stability of the shielding layer during winding.

[0066] In addition, the end of the pressing rod 414 near the rotating plate is bent radially outward to form a guide part 415, which facilitates the winding of the shielding layer to enter the inner side between multiple pressing rods 414 for pressing and bending.

[0067] Furthermore, such as Figures 6-8 As shown, the first wire combining assembly 34, the second wire combining assembly 43, and the third wire combining assembly 53 all include a wire separating plate 341 disposed on the frame 2, a positioning hole 342 disposed in the middle of the wire separating plate 341, wire separating holes 343 disposed at equal intervals along the circumference of the positioning hole 342 on the wire separating plate 341, and a plurality of wire combining rollers 344 disposed on the frame 2 and used to guide the wires in the corresponding wire separating holes 343 for wire combining.

[0068] In this embodiment, after the core produced in the previous process is positioned by setting the positioning hole 342, multiple splitting holes 343 and multiple combining rollers 344 are used to accurately combine multiple cores in this process around the core produced in the previous process.

[0069] It should be noted that the pressing rod 414 extends into the positioning hole 342, which serves as a positioning function during the conveying process, thereby improving production stability and yield.

[0070] Furthermore, such as Figures 10-12As shown, the powder conveying assembly 54 includes a powder box 541 disposed on the frame 2 for holding flame retardant material 19, a pressing plate 542 disposed vertically within the powder box 541, a third elastic member 543 disposed on the powder box 541 for forcing the pressing plate 542 to press the flame retardant material 19, a collection box 544 disposed on the side of the powder box 541 near the extruder 55 for collecting excess flame retardant material 19 adhering to the curved section 161, and a wire conveying hole 545 formed on the powder box 541 and the collection box 544.

[0071] In this embodiment, the flame retardant material 19 in the powder box 541 is compacted by setting a pressing plate 542 in conjunction with a third elastic element 543, so that the flame retardant material 19 is more completely filled. At the same time, when the wire core moves through the wire hole 545 to fill the flame retardant material 19, the flame retardant material 19 is prevented from being blown away, causing material waste and pollution to the production environment. In addition, the collection box 544 is used in conjunction with the wire hole 545 to scrape off and collect the excess flame retardant material 19 attached to the bent part 161, so as to avoid material falling off and causing waste.

[0072] It should be noted that the inner wall of the wire hole 545 is provided with a positioning groove 546 with a positioning reinforcing rib 18 to ensure the positioning and conveying effect, and further improve the stability of production and the yield.

[0073] Furthermore, such as Figure 13 As shown, the pressing assembly 56 includes a cooling box 564 disposed on the frame 2 for cooling the protective layer 17, a mounting bracket 561 disposed on the cooling box 564, an embossing roller 562 rotatably disposed on the mounting bracket 561 for embossing product information on the outer wall of the protective layer 17, and a plurality of pressing rollers 563 spaced apart and rotatably disposed on the mounting bracket 561 for pressing and forming anti-slip grooves 172 on the outer wall of the protective layer 17.

[0074] In this embodiment, after the product information is embossed on the outer wall of the protective layer 17 by setting the mounting frame 561 to install the embossing roller 562 and the pressing roller 563, and the anti-slip groove 172 is pressed into shape, the protective layer 17 is cooled and solidified by the cooling box 564.

[0075] It should be noted that the cooling box 564 is used to spray cooling water onto both the relief roller 562 and the pressing roller 563, thereby cooling them down and forming a water membrane to prevent them from sticking together when they press against the protective layer 17.

[0076] Furthermore, such as Figures 14-15As shown, the winding mechanism 6 includes a winding roller 61 rotatably mounted on the frame 2 for winding the formed B1-grade high flame-retardant shielding wire, a movable seat 62 movably mounted on the frame 2 along the axial direction of the winding roller 61, and a positioning component 63 mounted on the movable seat 62 for positioning and winding the formed B1-grade high flame-retardant shielding wire.

[0077] In this embodiment, by setting a winding roller 61 in conjunction with a positioning component 63 that moves with the moving seat 62, the formed B1 grade high flame retardant shielding wire can be spirally wound into a bundle.

[0078] Furthermore, such as Figures 14-15 As shown, the positioning assembly 63 includes a support arm 631 rotatably mounted on the movable seat 62, a positioning through hole 632 mounted on the support arm 631, a positioning protrusion 633 formed on the inner annular surface of the positioning through hole 632 for positioning the anti-slip groove 172, a support rod 634 movably mounted on the support arm 631 and whose two ends abut against the inner sides of the two ends of the take-up roller 61 as the movable seat 62 moves, a fourth elastic member mounted on the support arm 631 for forcing both ends of the support rod 634 to extend out of the support arm 631, and a fifth elastic member mounted on the mounting base for forcing the support arm 631 to rotate toward the take-up roller 61.

[0079] In this embodiment, the positioning of the B1-grade high flame-retardant shielding wire is achieved by setting the positioning protrusion 633 in conjunction with the positioning through hole 632 and the positioning anti-slip groove 172. At the same time, the support arm 631, in conjunction with the fifth elastic element, ensures that the support rod 634, under the action of the fourth elastic element, not only avoids interfering with the movement of the moving seat 62, but also always abuts against the spirally wound B1-grade high flame-retardant shielding wire on the take-up roller 61, thereby achieving positioning and winding of the B1-grade high flame-retardant shielding wire and the take-up roller 61.

[0080] In detail, during use, under the action of the fifth elastic element, the support arm 631 rotates until it abuts against the outer wall of the positioning through hole 632 and then against the take-up roller 61. The moving seat 62 moves until the outer wall of the positioning through hole 632 abuts against the inner side of one end of the take-up roller 61. Then, one end of the support rod 634 retracts into the support arm 631, and the fourth elastic element deforms, thereby positioning the B1-grade high flame-retardant shielding wire in the positioning through hole 632 and the take-up roller 61. When the B1-grade high flame-retardant shielding wire is spirally wound, the moving seat 62 moves at the same time as the take-up roller 61 rotates. Then, the fourth elastic element restores its deformation, forcing the support rod 634 to extend and support the outside of the wound B1-grade high flame-retardant shielding wire, supporting the positioning through hole 632 at a certain height, and avoiding movement interference with the wound B1-grade high flame-retardant shielding wire.

[0081] It should be noted that the first elastic element, the second elastic element, the third elastic element 543, the fourth elastic element, and the fifth elastic element are helical springs, leaf springs, or torsion springs, etc., and their installation methods are all existing technologies. Furthermore, the first elastic element, the second elastic element, the fourth elastic element, and the fifth elastic element are not shown in the attached drawings and will not be described in detail here.

[0082] Example 2

[0083] like Figures 1-5 As shown, a method for making network cables, using a B1-grade high flame-retardant shielded network cable making device as described in Embodiment 1, includes the following steps:

[0084] Step 1: First wire bonding process. After wrapping the first shielding layer 12 around the outside of the first wire core 11, attach multiple second wire cores 13 at equal intervals to the outer wall of the first shielding layer 12.

[0085] Step 2: Second wire bonding process, after wrapping the second shielding layer 14 around the outside of the multiple second wire cores 13, attach the multiple third wire cores 15 at equal intervals to the outer wall of the second shielding layer 14, and the third wire cores 15 press the second shielding layer 14 to bend between two adjacent second wire cores 13 until the second shielding layer 14 is attached to the first shielding layer 12 to form multiple first shielding areas 121.

[0086] Step 3: Injection molding process, a third shielding layer 16 is wrapped around the outside of multiple third wire cores 15, and after the third shielding layer 16 is attached to the second shielding layer 14 to form multiple second shielding areas 141, a protective layer 17 is injection molded on the outside of the third shielding layer 16.

[0087] Step 4: Rolling process. After the protective layer 17 is cooled and solidified, the B1 grade high flame retardant shielded wire mesh is formed and then rolled into a bundle.

[0088] Furthermore, such as Figures 4-5 As shown, in step three, before the injection-molded protective layer 17, multiple reinforcing ribs 18 are attached at equal intervals on the outer wall of the third shielding layer 16. The multiple reinforcing ribs 18 press the third shielding layer 16 and bend it between the adjacent second core 13 and third core 15 to form multiple bent portions 161, and flame-retardant material 19 is filled in the bent portions 161.

[0089] Furthermore, such as Figures 4-5 As shown, in step four, before the protective layer 17 cools down and solidifies, multiple anti-slip grooves 172 are pressed into the outer wall of the protective layer 17, while multiple limiting strips 171 for limiting the reinforcing ribs 18 are pressed into the corresponding positions on the inner wall of the protective layer 17.

[0090] Furthermore, such as Figures 4-5As shown, the widths of the first shielding layer 12, the second shielding layer 14, and the third shielding layer 16 are all 1.5cm-2.5cm, and the winding speeds are all 1000-1500r / min. The transmission speed of the first wire core 11 is 300-500cm / min.

[0091] In this embodiment, by setting a first shielding layer 12, a second shielding layer 14, and a third shielding layer 16 of specific widths, and supplementing them with specific production winding speeds and conveying speeds, production continuity is ensured while production efficiency and the accuracy and stability of the winding of the protective layer 17 are guaranteed.

[0092] Example 3

[0093] like Figures 1-2 As shown, a B1-grade high flame-retardant shielded wire, manufactured using the production equipment of Example 2 and the specific manufacturing process of Example 1, includes:

[0094] A first core 11, a first shielding layer 12 wrapped around the first core 11, a plurality of second cores 13 equally spaced around the first shielding layer 12 along the circumference of the first core 11, a second shielding layer 14 wrapped around the plurality of second cores 13 and forming a plurality of first shielding areas 121 between the second shielding layer 12 and the first shielding layer 12 respectively for shielding the plurality of second cores 13, a plurality of third cores 15 respectively disposed between two adjacent second cores 13, a third shielding layer 16 wrapped around the plurality of third cores 15 and forming a plurality of second shielding areas 141 between the second shielding layer 12 and the third shielding layer 16 respectively for shielding the plurality of third cores 15, and a protective layer 17 wrapped around the third shielding layer 16.

[0095] In this embodiment, by setting the second shielding layer 14 to a special structure, the rationality of the cooperation between multiple shielding layer structures is improved, so that a first shielding area 121 for shielding the second wire core 13 is formed between the first shielding layer 12 and the second shielding layer 14, and a second shielding area 141 for shielding the third wire core 15 is formed between the third shielding layer 16 and the second shielding layer 14, thereby achieving shielding for each wire core. The shielding effect is good, and during production, it is only necessary to sequentially wrap the first shielding layer 12, the second shielding layer 14, and the third shielding layer 16 around the outside of the first wire core 11, the second wire core 13, and the third wire core 15, and squeeze the second shielding layer 14 to form a special structure during the wire bonding process, which reduces the production difficulty, reduces the number of shielding layers to wrap, improves production efficiency, and reduces production costs.

[0096] It should be noted that the protective layer 17 is made of PVC or flame-retardant PC material, which has good protective and flame-retardant properties.

[0097] Furthermore, such as Figures 1-3As shown, the B1-grade high flame-retardant shielded wire also includes multiple reinforcing ribs 18 respectively disposed between adjacent second cores 13 and third cores 15 and located outside the third shielding layer 16, and the multiple reinforcing ribs 18 press the third shielding layer 16 and bend between the second cores 13 and third cores 15 to form a bent portion 161.

[0098] In this embodiment, by setting the reinforcing rib 18 to improve the overall structural strength, the reinforcing rib 18 also compresses the third shielding layer 16 supported between the adjacent second core 13 and third core 15 to bend inward to form a bent portion 161, thereby reducing the probability of the third shielding layer 16 being damaged during the compression or impact of the protective layer 17, and avoiding affecting the overall shielding effect.

[0099] It should be noted that the reinforcing rib 18 is made of steel strip or fiber strip, which has high strength and corrosion resistance, and has a good reinforcing effect.

[0100] Furthermore, such as Figures 1-3 As shown, multiple limiting strips 171 are formed on the inner side of the protective layer 17, and two limiting strips 171 form a group and respectively limit the two sides of the reinforcing rib 18.

[0101] In this embodiment, by setting the limiting strip 171 to limit both sides of the reinforcing rib 18, the third wire core 15 and the second wire core 13 are indirectly limited, thereby improving the stability of the internal structure and the stability of the shielding structure.

[0102] Furthermore, as shown in the figure, anti-slip grooves 172 are formed on the outer side of the protective layer 17 at the positions corresponding to the multiple limiting strips 171.

[0103] In this embodiment, by setting the anti-slip groove 172 on the outer side of the protective layer 17 corresponding to the position of the limiting strip 171, not only is the external anti-slip effect improved, making it easier to roll up during production and install and fix during use, but the limiting strip 171 is also formed synchronously during the pressing and molding process of the anti-slip groove 172, reducing the production difficulty and facilitating production and processing.

[0104] Furthermore, such as Figures 2-3 As shown, the B1-grade high flame-retardant shielded wire also includes flame-retardant material 19 filling the space between the bend 161 and the protective layer 17. The flame-retardant material 19 is magnesium hydroxide powder or aluminum hydroxide powder.

[0105] In this embodiment, by filling the space between the curved portion 161 and the protective layer 17 with flame-retardant material 19, the flame-retardant effect is improved, and the safety during use is enhanced.

[0106] Furthermore, such as Figures 1-2As shown, the first shielding layer 12, the second shielding layer 14 and the third shielding layer 16 are all copper foil or aluminum foil, and the thickness of each of them is 0.5mm-1mm.

[0107] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0108] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0109] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A B1 grade high flame retardant shielded network cable manufacturing equipment characterized by, The application relates to a B1-grade high-flame-retardant shielding network cable production device. The first line combining mechanism comprises a first bearing shaft, a first winding assembly, a plurality of second bearing shafts and a first line combining assembly which are sequentially arranged on the rack in the production direction, the first bearing shaft is used for winding the first line core, the first winding assembly is used for winding the first shielding layer outside the first line core, the plurality of second bearing shafts are respectively used for winding the plurality of second line cores, and the first line combining assembly is used for attaching the plurality of second line cores on the outer wall of the first shielding layer at equal intervals. The second line combining mechanism comprises a second winding assembly, a plurality of third bearing shafts and a second line combining assembly which are sequentially arranged on the rack in the production direction, the second winding assembly is used for winding the second shielding layer outside the second line core, the plurality of third bearing shafts are respectively used for winding the plurality of third line cores, and the second line combining assembly is used for attaching the plurality of third line cores on the outer wall of the second shielding layer at equal intervals and extruding the second shielding layer to be bent inward and attached to the first shielding layer. The injection molding mechanism comprises a third winding assembly, a plurality of fourth bearing shafts, a third line combining assembly, a powder passing assembly, an extruding machine and a pressing assembly which are sequentially arranged on the rack in the production direction, the third winding assembly is used for winding the third shielding layer outside the third line core, the plurality of fourth bearing shafts are respectively used for winding the plurality of reinforcing ribs, the third line combining assembly is used for attaching the plurality of reinforcing ribs on the outer wall of the third shielding layer at equal intervals and extruding the second shielding layer to be bent inward and form a bending part, the powder passing assembly is used for filling the flame-retardant material in the bending part, the extruding machine is used for injecting the protective layer outside the reinforcing rib, and the pressing assembly is used for pressing the anti-skid groove on the outer wall of the protective layer. The first line combining assembly, the second line combining assembly and the third line combining assembly all comprise a line separating plate arranged on the rack, a positioning hole arranged in the middle of the line separating plate, a plurality of line separating holes arranged on the line separating plate at equal intervals in the circumferential direction of the positioning hole and a plurality of line combining rollers arranged on the rack and used for guiding the wires in the corresponding line separating holes to combine. The winding mechanism comprises a winding roller which is rotationally arranged on the rack and used for winding the formed B1-grade high-flame-retardant shielding network cable, a moving seat which is movably arranged on the rack in the axial direction of the winding roller and a positioning assembly which is arranged on the moving seat and used for positioning and winding the formed B1-grade high-flame-retardant shielding network cable. ​ 2. The B1 grade high flame-retardant shielded network cable manufacturing device according to claim 1, characterized in that, The first winding assembly comprises a first rotating plate rotatably arranged on the frame and used for supporting the shielding layer roll, a first supporting hole formed on the rotating axis of the first rotating plate, a first supporting frame rotatably arranged on the first rotating plate, a first guide roller rotatably arranged on the first supporting frame and used for guiding the shielding layer, and a first elastic member arranged on the first rotating plate and used for forcing the first supporting frame to rotate towards the shielding layer roll.

3. The B1 grade high flame-retardant shielded twisted pair wire manufacturing apparatus according to claim 1, wherein, The second winding assembly and the third winding assembly each comprise a second rotating plate rotatably arranged on the frame and used for supporting the shielding layer roll, a second supporting hole formed on the rotating axis of the second rotating plate, a second supporting frame rotatably arranged on the second rotating plate, a second guide roller rotatably arranged on the second supporting frame and used for guiding the shielding layer, a second elastic member arranged on the second rotating plate and used for forcing the second supporting frame to rotate towards the shielding layer roll, and a pressing rod arranged on the frame and used for pressing the shielding layer after winding to bend inward.

4. The apparatus for manufacturing a B1 grade high flame-retardant shielded twisted pair wire according to claim 3, wherein The overcoating assembly comprises a powder box arranged on the frame and used for containing the fireproof material, a pressing plate movably arranged in the powder box, a third elastic member arranged on the powder box and used for forcing the pressing plate to press the fireproof material, a collecting box arranged on the side of the powder box close to the extruder and used for collecting the excess fireproof material attached in the bending part, and an overline hole formed on the powder box and the collecting box.

5. The apparatus for manufacturing a B1 grade high flame-retardant shielded twisted pair wire according to claim 4, wherein The pressing assembly comprises a cooling box arranged on the frame and used for cooling the protective layer, a mounting frame arranged on the cooling box, a embossing roller rotatably arranged on the mounting frame and used for embossing the product information on the outer wall of the protective layer, and a plurality of pressing rollers spaced apart and rotatably arranged on the mounting frame and used for pressing and forming the anti-skid grooves on the outer wall of the protective layer.

6. The apparatus for manufacturing a B1 grade high flame-retardant shielded twisted pair wire according to claim 5, wherein The positioning assembly comprises a supporting arm rotatably arranged on the moving seat, a positioning through hole arranged on the supporting arm, a positioning protrusion formed on the inner annular surface of the positioning through hole and used for positioning the anti-skid grooves, a supporting rod movably arranged on the supporting arm and having two ends abutting against the inner sides of the two ends of the winding roller with the movement of the moving seat, a fourth elastic member arranged on the supporting arm and used for forcing the two ends of the supporting rod to extend out of the supporting arm, and a fifth elastic member arranged on the mounting seat and used for forcing the supporting arm to rotate towards the winding roller.

7. A manufacturing process using the B1 high flame-retardant shielded twisted pair cable manufacturing apparatus according to any one of claims 1 to 6, characterized in that, The method comprises the following steps: Step one: a first wire combining process, a first shielding layer is wound on the outside of a first wire core by a first wire combining mechanism, and a plurality of second wire cores are attached to the outer wall of the first shielding layer at equal intervals; Step two: a second wire combining process, a second shielding layer is wound on the outside of the plurality of second wire cores by a second wire combining mechanism, a plurality of third wire cores are attached to the outer wall of the second shielding layer at equal intervals, the third wire cores press the second shielding layer to bend between the two adjacent second wire cores, and the second shielding layer is attached to the first shielding layer to form a plurality of first shielding areas; Step three: an injection molding process, a third shielding layer is wound on the outside of the plurality of third wire cores, the third shielding layer is attached to the second shielding layer to form a plurality of second shielding areas, and a protective layer is injected on the outside of the third shielding layer by an injection molding mechanism. Step four: winding process, cooling and solidification of the protective layer, so that the B1 high flame-retardant shielding network is formed, and the B1 high flame-retardant shielding network is wound into a bundle through the winding mechanism.

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