Production equipment for polyolefin insulated fire-resistant and environmentally friendly wires

Abstract

The utility model relates to the technical field of electric wire production, and discloses a production device for polyolefin insulated fire-resistant and environmentally friendly electric wire, including a winding and cooling mechanism and a stirring mechanism, wherein the winding and cooling mechanism is located at the outer end of a main body mechanism, and the stirring mechanism is located at the inner end of the winding and cooling mechanism, and the winding and cooling mechanism includes a bottom plate, a mounting plate, a reduction motor and a winding roller. The polyolefin insulated fire-resistant and environmentally friendly electric wire is convenient for improving the fire-resistant and flame-retardant effect of electric wires and cables by installing the main body mechanism, which is beneficial to reducing the possibility of burning of the electric wires, and the halogen-free, low-smoke and low-toxic polyolefin insulation sleeve is convenient for reducing the toxic gas generated after the outer layer is burned, thereby improving safety.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wire production, in particular to production equipment for polyolefin insulated fire-resistant and environment-friendly electric wires. Background Art

[0002] Wires and cables are wire products used to transmit electrical energy, information and realize electromagnetic energy conversion. Wires and cables in a broad sense are also referred to as cables. Cables in a narrow sense refer to insulated cables. Wires include conductors and insulation layers. The insulation layer is generally composed of rubber or other insulating materials.

[0003] The fire retardant effect of wires and cables in the prior art is relatively poor. During the production process of wires and cables, liquid insulating material is wrapped around the outer end of the wires and cables through an injection molding machine, and the insulating material is cooled and formed to form an insulating layer. The prior art is not convenient for accelerating the cooling and forming speed of the wires and cables, which reduces production efficiency and has low practicality. Utility Model Content

[0004] Technical problem to be solved: The purpose of the utility model is to provide production equipment for polyolefin insulated fire-resistant and environmentally friendly electric wires, so as to solve the problem in the above-mentioned background technology that the fire-resistant and flame-retardant effect of electric wires and cables is poor and it is not convenient to speed up the cooling and forming speed of electric wires and cables.

[0005] Technical solution: To achieve the above-mentioned purpose, the utility model provides the following technical solution: a polyolefin insulated fire-resistant and environmentally friendly electric wire, the main body of which includes a wire body, a conductor fixedly installed at the inner end of the wire body, a mica tape fixedly installed at the outer end of the conductor, and an insulating sleeve fixedly installed at the outer end of the mica tape.

[0006] The production equipment of polyolefin insulated fire-resistant and environmentally friendly electric wire includes a winding and cooling mechanism and a stirring mechanism. The winding and cooling mechanism is located at the outer end of the main body mechanism, and the stirring mechanism is located at the inner end of the winding and cooling mechanism. The winding and cooling mechanism includes a bottom plate, a mounting plate, a reduction motor, a winding roller, a U-shaped plate, a servo motor, a cooling fan, an injection molding box and an insulation barrel. The bottom plate is located below the wire body.

[0007] Preferably, the mounting plate is fixedly mounted on the left and right ends of the upper end of the base plate, the reduction motor is fixedly mounted on the right end of the mounting plate, the transmission end of the reduction motor extends to the middle of the mounting plate, the winding roller is fixedly mounted on the left end of the transmission end of the reduction motor, the winding roller is located in the middle of the mounting plate, and the winding roller is movably connected to the mounting plate to facilitate the winding of the completed wires.

[0008] Preferably, the U-shaped plate is fixedly mounted in the middle of the upper end of the base plate, the servo motor is fixedly mounted in the middle of the U-shaped plate, the cooling fan is fixedly mounted in the middle of the transmission end of the servo motor, the cooling fan is located on the outside of the wire body, the injection molding box is fixedly mounted at the rear end of the upper end of the base plate, and the insulation barrel is fixedly mounted at the upper end of the injection molding box, so as to speed up the cooling and molding of the polyolefin insulation material and improve production efficiency.

[0009] Preferably, the stirring mechanism includes a rubber barrel, a heating plate, a stirring motor, a transmission shaft, a stirring rod, a feeding port, an injection pump, an injection tube and an injection head. The rubber barrel is fixedly installed on the inner end of the injection box, and the heating plate is fixedly installed on the outer end of the rubber barrel, so as to heat the polyolefin insulating material in the rubber barrel and ensure that the polyolefin insulating material is always in a liquid state.

[0010] Preferably, the stirring motor is fixedly installed in the middle of the upper end of the insulation barrel, the transmission end of the stirring motor extends to the inside of the rubber barrel, the transmission shaft is fixedly installed at the lower end of the transmission end of the stirring motor, the stirring rod is fixedly installed at the outer end of the transmission shaft, and the feeding port is fixedly arranged at the rear end of the upper end of the insulation barrel, which is convenient for mixing and stirring the polyolefin insulating material, which not only improves the quality of the product but also improves the uniformity of heating.

[0011] Preferably, the feeding port extends to the interior of the rubber barrel, the injection pump is fixedly installed at the lower end of the inner end of the rubber barrel, the injection tube is fixedly installed at the lower end of the injection pump, the injection tube extends to the interior of the injection box, and the injection head is fixedly installed at the lower end of the injection tube, so as to facilitate the extraction of the material of the insulating sleeve into the injection box, and facilitate the production of polyolefin insulated fire-resistant and environmentally friendly wires.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The polyolefin insulated fire-resistant and environmentally friendly wire can improve the fire-resistant and flame-retardant effect of the wire and cable by installing the main body mechanism, which is beneficial to reduce the possibility of burning of the wire. The halogen-free, low-smoke and low-toxic polyolefin insulation sleeve can reduce the toxic gas generated after the outer layer is burned, thereby improving safety;

[0014] 2. The production equipment of the polyolefin insulated fire-resistant and environmentally friendly electric wire is convenient for winding the finished electric wire by installing a winding and cooling mechanism, which is convenient for accelerating the cooling and molding speed of the polyolefin insulation material and improving the production efficiency;

[0015] 3. The production equipment of the polyolefin insulated fire-resistant and environment-friendly wire is convenient for mixing and stirring the polyolefin insulating material by installing a stirring mechanism, which not only improves the quality of the product but also improves the uniformity of heating, and is convenient for producing the polyolefin insulated fire-resistant and environment-friendly wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the partial cross-section structure of the winding and cooling mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the stirring mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the main mechanism of the utility model.

[0020] In the figure: 1. Main body; 101. Wire body; 102. Conductor; 103. Mica tape; 104. Insulation sleeve; 2. Winding and cooling mechanism; 201. Bottom plate; 202. Mounting plate; 203. Speed ​​reducer motor; 204. Winding roller; 205. U-shaped plate; 206. Servo motor; 207. Cooling fan; 208. Injection molding box; 209. Insulation barrel; 3. Stirring mechanism; 301. Rubber barrel; 302. Heating plate; 303. Stirring motor; 304. Transmission shaft; 305. Stirring rod; 306. Feeding port; 307. Injection molding pump; 308. Injection molding tube; 309. Injection molding head. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 The utility model provides a technical solution: a polyolefin insulated fire-resistant and environmentally friendly wire, a main body 1 includes a wire body 101, a conductor 102 is fixedly installed at the inner end of the wire body 101, a mica tape 103 is fixedly installed at the outer end of the conductor 102, and an insulating sleeve 104 is fixedly installed at the outer end of the mica tape 103. First, when using the polyolefin insulated fire-resistant and environmentally friendly wire and production equipment, the wire body 101 is wrapped with 2 layers of double-sided composite mica tape 103, which can burn at 950~1000℃ for 3 hours without breakdown. The outer diameter of the wire body 101 is about 4.8mm, and the insulating sleeve 104 adopts high oxygen index, high crust, low heat release, halogen-free and low smoke material with a thickness of 0.8mm. The wire body 101 meets the requirements of flame retardant grade B1 and does not drip. At the same time, it can meet the requirements of burning dripping / particle grade d0, smoke toxicity grade t0, and corrosive grade a1.

[0023] The production equipment of polyolefin insulated fire-resistant and environmentally friendly electric wire comprises a winding and cooling mechanism 2 and a stirring mechanism 3. The winding and cooling mechanism 2 is located at the outer end of the main mechanism 1, and the stirring mechanism 3 is located at the inner end of the winding and cooling mechanism 2. The winding and cooling mechanism 2 comprises a bottom plate 201, a mounting plate 202, a reduction motor 203, a winding roller 204, a U-shaped plate 205, a servo motor 206, a cooling fan 207, an injection molding box 208 and an insulation barrel 209. The bottom plate 201 is located below the electric wire body 101, the mounting plate 202 is fixedly mounted on the left and right ends of the upper end of the bottom plate 201, the reduction motor 203 is fixedly mounted on the right end of the mounting plate 202, and the reduction motor The driving end of 203 extends to the middle of the mounting plate 202, the winding roller 204 is fixedly mounted on the left end of the driving end of the reduction motor 203, the winding roller 204 is located in the middle of the mounting plate 202, the winding roller 204 is movably connected to the mounting plate 202, the U-shaped plate 205 is fixedly mounted in the middle of the upper end of the base plate 201, the servo motor 206 is fixedly mounted in the middle of the U-shaped plate 205, the cooling fan 207 is fixedly mounted in the middle of the driving end of the servo motor 206, the cooling fan 207 is located on the outside of the wire body 101, the injection molding box 208 is fixedly mounted at the rear end of the upper end of the base plate 201, and the insulation barrel 209 is fixedly mounted on the upper end of the injection molding box 208.

[0024] The stirring mechanism 3 includes a rubber barrel 301, a heating plate 302, a stirring motor 303, a transmission shaft 304, a stirring rod 305, a feeding port 306, an injection pump 307, an injection tube 308 and an injection head 309. The rubber barrel 301 is fixedly mounted on the inner end of the injection box 208, the heating plate 302 is fixedly mounted on the outer end of the rubber barrel 301, the stirring motor 303 is fixedly mounted on the middle of the upper end of the insulation barrel 209, the transmission end of the stirring motor 303 extends to the inside of the rubber barrel 301, and the transmission shaft 304 is fixedly mounted on the lower end of the driving end of the stirring motor 303, the stirring rod 305 is fixedly mounted on the outer end of the driving shaft 304, the feeding port 306 is fixedly arranged at the rear end of the upper end of the insulation barrel 209, and the feeding port 306 extends to the inside of the rubber barrel 301, the injection pump 307 is fixedly mounted on the lower end of the inner end of the rubber barrel 301, the injection tube 308 is fixedly mounted on the lower end of the injection pump 307, the injection tube 308 extends to the inside of the injection box 208, and the injection head 309 is fixedly mounted on the injection tube 308. At the lower end, when producing the wire body 101, the staff puts the polyolefin insulating material into the rubber barrel 301 through the feeding port 306, the heating plate 302 heats the material inside the rubber barrel 301 to keep the polyolefin insulating material always liquid, the stirring motor 303 drives the transmission shaft 304 and the stirring rod 305 to rotate to stir and mix the polyolefin insulating material, which not only improves the quality of the product but also improves the uniformity of heating, the injection pump 307 extracts the liquid polyolefin insulating material in the rubber barrel 301, and pumps it into the injection box 208 through the injection tube 308 and the injection head 309, the injection box 208 wraps the polyolefin insulating material to the outer end of the wire body 101 to form an insulating sleeve 104, the servo motor 206 drives the cooling fan 207 to rotate, speeds up the air flow, cools and dissipates the insulating sleeve 104, and increases the cooling and molding speed of the polyolefin insulating material, and the reduction motor 203 drives the winding roller 204 to rotate to wind up the wire body 101 that has been cooled and molded.

[0025] Working principle: First, when using polyolefin insulated fire-resistant and environmentally friendly wires and production equipment, the wire body 101 is wrapped with 2 layers of double-sided composite mica tape 103, which can burn at 950~1000℃ for 3 hours without breakdown. The outer diameter of the wire body 101 is about 4.8mm, and the insulating sleeve 104 adopts high oxygen index, high crust, low heat release, halogen-free and low smoke material with a thickness of 0.8mm. The wire body 101 meets the requirements of flame retardant grade B1 and does not drip. At the same time, it can meet the requirements of burning drips / particles grade d0, smoke toxicity grade t0, and corrosive grade a1. When producing the wire body 101, the staff puts the polyolefin insulating material into the rubber barrel 301 through the feeding port 306, and the heating plate 302 heats the material inside the rubber barrel 301 to keep the polyolefin The insulating material is always liquid. The stirring motor 303 drives the transmission shaft 304 and the stirring rod 305 to rotate and stir and mix the polyolefin insulating material, which not only improves the quality of the product but also improves the uniformity of heating. The injection pump 307 draws out the liquid polyolefin insulating material in the rubber barrel 301, and draws it into the injection box 208 through the injection tube 308 and the injection head 309. The injection box 208 wraps the polyolefin insulating material to the outer end of the wire body 101 to form an insulating sleeve 104. The servo motor 206 drives the cooling fan 207 to rotate, speeds up the air flow, cools and dissipates the insulating sleeve 104, and increases the cooling and molding speed of the polyolefin insulating material. The reduction motor 203 drives the winding roller 204 to rotate to wind up the wire body 101 that has been cooled and molded.

[0026] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A production device for polyolefin insulated fire-resistant and environment-friendly electric wires, comprising a winding and cooling mechanism (2) and a stirring mechanism (3), characterized in that: The winding and cooling mechanism (2) is located at the outer end of the main mechanism (1), and the stirring mechanism (3) is located at the inner end of the winding and cooling mechanism (2). The winding and cooling mechanism (2) comprises a bottom plate (201), a mounting plate (202), a reduction motor (203), a winding roller (204), a U-shaped plate (205), a servo motor (206), a cooling fan (207), an injection molding box (208) and a heat preservation bucket (209). The bottom plate (201) is located below the electric wire body (101).

2. The production equipment of polyolefin insulated fire-resistant and environment-friendly electric wire according to claim 1, characterized in that: The mounting plate (202) is fixedly mounted on the left and right ends of the upper end of the base plate (201); the reduction motor (203) is fixedly mounted on the right end of the mounting plate (202); the transmission end of the reduction motor (203) extends to the middle of the mounting plate (202); the winding roller (204) is fixedly mounted on the left end of the transmission end of the reduction motor (203); the winding roller (204) is located in the middle of the mounting plate (202); and the winding roller (204) is movably connected to the mounting plate (202).

3. The production equipment of polyolefin insulated fire-resistant and environment-friendly electric wire according to claim 1, characterized in that: The U-shaped plate (205) is fixedly mounted in the middle of the upper end of the bottom plate (201), the servo motor (206) is fixedly mounted in the middle of the U-shaped plate (205), the cooling fan (207) is fixedly mounted in the middle of the transmission end of the servo motor (206), the cooling fan (207) is located outside the electric wire body (101), the injection molding box (208) is fixedly mounted at the rear end of the upper end of the bottom plate (201), and the heat preservation bucket (209) is fixedly mounted at the upper end of the injection molding box (208).

4. The production equipment of polyolefin insulated fire-resistant and environment-friendly electric wire according to claim 1, characterized in that: The stirring mechanism (3) comprises a rubber barrel (301), a heating plate (302), a stirring motor (303), a transmission shaft (304), a stirring rod (305), a feeding port (306), an injection pump (307), an injection tube (308) and an injection head (309); the rubber barrel (301) is fixedly mounted on the inner end of the injection box (208), and the heating plate (302) is fixedly mounted on the outer end of the rubber barrel (301).

5. The production equipment of polyolefin insulated fire-resistant and environment-friendly electric wire according to claim 4, characterized in that: The stirring motor (303) is fixedly mounted in the middle of the upper end of the heat preservation barrel (209); the transmission end of the stirring motor (303) extends into the interior of the rubber barrel (301); the transmission shaft (304) is fixedly mounted at the lower end of the transmission end of the stirring motor (303); the stirring rod (305) is fixedly mounted at the outer end of the transmission shaft (304); and the feeding port (306) is fixedly arranged at the rear end of the upper end of the heat preservation barrel (209).

6. The production equipment of polyolefin insulated fire-resistant and environment-friendly electric wire according to claim 5, characterized in that: The feed port (306) extends to the interior of the rubber barrel (301), the injection pump (307) is fixedly mounted at the lower end of the inner end of the rubber barrel (301), the injection tube (308) is fixedly mounted at the lower end of the injection pump (307), the injection tube (308) extends to the interior of the injection box (208), and the injection head (309) is fixedly mounted at the lower end of the injection tube (308).

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