Multifunctional glass fiber insulating sleeve and manufacturing process

Abstract

The invention discloses a multifunctional glass fiber insulating sleeve and a manufacturing process, and relates to the technical field of insulating sleeves, the multifunctional glass fiber insulating sleeve comprises an inner protective layer, the outer wall of the inner protective layer is sleeved with a waterproof layer, the outer wall of the waterproof layer is sleeved with a flame-retardant layer, the outer wall of the flame-retardant layer is sleeved with an insulating layer, the outer wall of the insulating layer is sleeved with a stab-resistant layer, and the stab-resistant layer is arranged on the outer wall of the stab-resistant layer. The outer wall of the puncture-proof layer is sleeved with an outer protection layer, and the outer wall of the outer protection layer is provided with a buffer ring. When the sleeve is extruded, the buffer ring is compressed, air in the buffer ring is jetted to the surface of the sleeve through the air jetting holes, when the buffer ring loses pressure, new air is sucked through the air jetting holes, the air flowing speed on the surface of the sleeve can be increased in a reciprocating mode, and therefore the heat dissipation speed of the sleeve is increased; external electromagnetic interference can be effectively shielded through the tinned copper wire braid layer, signal or power transmission in the cable is protected from being affected by the external electromagnetic environment, and meanwhile the anti-puncture effect of the sleeve can be improved through the tinned copper wire braid layer.

Description

Technical Field

[0001] The invention relates to the technical field of insulating sleeves, and in particular to a multifunctional glass fiber insulating sleeve and a manufacturing process thereof. Background Art

[0002] Glass fiber casing is mainly used for electrical insulation materials. KB heat shrinkable busbar protection casing is made of high-quality polymer and environmentally friendly flame retardant. After the product is formed, it is expanded by radiation cross-linking. It is widely used in the protection of busbars in switch cabinets and outdoor busbars.

[0003] The existing glass fiber sleeve is woven from alkali-free glass fiber yarn, then subjected to high temperature treatment and coated with silicone copolymer resin. However, the sleeve only dissipates heat through natural heat dissipation when in use, so the heat dissipation effect of the sleeve is poor. Summary of the invention

[0004] In order to improve the above-mentioned existing glass fiber sleeve, which is woven from alkali-free glass fiber yarn, then subjected to high-temperature treatment and coated with silicone copolymer resin, but the sleeve only dissipates heat through natural heat dissipation when in use, so the heat dissipation effect of the sleeve is poor, the present invention provides a multifunctional glass fiber insulation sleeve and a manufacturing process.

[0005] The present invention provides a multifunctional glass fiber insulating sleeve and a manufacturing process, which adopts the following technical solutions: A multifunctional glass fiber insulating sleeve comprises an inner protective layer, the outer wall of the inner protective layer is covered with a waterproof layer, the outer wall of the waterproof layer is covered with a flame retardant layer, the outer wall of the flame retardant layer is covered with an insulating layer, the outer wall of the insulating layer is covered with a puncture-proof layer, the outer wall of the puncture-proof layer is covered with an outer protective layer, and the outer wall of the outer protective layer is provided with a buffer ring.

[0006] Optionally, in the above-mentioned multifunctional glass fiber insulating sleeve, the inner protective layer is woven from alkali-free glass fibers, and the alkali metal oxide content in the alkali-free glass fibers is less than 0.5%, and the outer protective layer is an integrally injection-molded rubber sleeve.

[0007] Optionally, in the above-mentioned multifunctional glass fiber insulating sleeve, the waterproof layer is woven from polyethylene polypropylene, and the polyethylene polypropylene braid is wound and arranged on the inner protective layer.

[0008] Optionally, in the above-mentioned multifunctional glass fiber insulation sleeve, the surface of the outer sheath is coated with silicone resin.

[0009] Optionally, in the above-mentioned multifunctional glass fiber insulating sleeve, the flame retardant layer is chloroprene rubber, the insulating layer is insulating rubber, and the puncture-proof layer is woven from tinned copper wire.

[0010] Optionally, in the above-mentioned multifunctional glass fiber insulating sleeve, a cavity is opened in the buffer ring, and a plurality of air injection holes are opened on the outer wall of the buffer ring along the circumference.

[0011] Another technical solution proposed by the present invention is a multifunctional glass fiber insulation sleeve and a manufacturing process, comprising the following steps: S101: Braided inner sheath and waterproof layer First, the alkali-free glass fiber is evenly woven into an inner sheath by a winding machine, and then a waterproof layer is evenly woven on the inner sheath by a winding machine. The waterproof layer is woven from polyethylene polypropylene, so that the inner sheath and the battery core inside are protected by polyethylene polypropylene, thereby increasing the waterproof effect of the casing; S102: Injection molding flame retardant layer and insulation layer Then, a flame retardant layer is injection molded on the outer side of the waterproof layer by an injection molding device, the flame retardant layer is made of chloroprene rubber, and then an insulating layer is injection molded on the outer side of the flame retardant layer by an injection molding device, the insulating layer is made of insulating rubber; S103: Woven stab-proof layer Then, a puncture-proof layer is evenly wound on the outside of the insulation layer by a winding machine. The puncture-proof layer is woven from tinned copper wire. S104: Injection molded outer sheath Then, an outer protective layer is injection-molded on the outer wall of the stab-proof layer by an injection molding device. The outer protective layer is made of wear-resistant rubber, and a layer of organic silicone resin is applied on the surface of the outer protective layer; S105: Vulcanization Finally, the sleeve is placed in a vulcanizer for vulcanization.

[0012] Optionally, in the above-mentioned multifunctional glass fiber insulating sleeve, the temperature during the vulcanization treatment is 140-160° C., the pressure is 0.5-1.0 MPa, and the vulcanization time is 4-6 hours.

[0013] In summary, the present invention includes at least one of the following beneficial effects: When the sleeve is squeezed, the buffer ring is compressed and the air inside it is sprayed onto the sleeve surface through the air jet hole. When the buffer ring loses pressure, new air is sucked in through the air jet hole. This reciprocating process speeds up the air flow speed on the sleeve surface, thereby increasing the heat dissipation speed of the sleeve.

[0014] The tinned copper wire braided layer can effectively shield external electromagnetic interference and protect the signal or power transmission inside the cable from being affected by the external electromagnetic environment. At the same time, the tinned copper wire braided layer can increase the anti-puncture effect of the casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a partial three-dimensional structural cross-sectional view of the present invention; Figure 3 It is a manufacturing process flow chart of the present invention.

[0016] In the figure: 1, inner protective layer; 2, waterproof layer; 3, flame retardant layer; 4, insulating layer; 5, puncture-proof layer; 6, outer protective layer; 7, buffer ring; 71, cavity; 72, jet hole. DETAILED DESCRIPTION

[0017] The following is combined with Figure 1-3 The present invention is described in further detail.

[0018] Please refer to the attached figure in the instruction manual Figure 1-3 The present invention provides an embodiment: a multifunctional glass fiber insulating sleeve, comprising an inner protective layer 1, the inner protective layer 1 is woven from alkali-free glass fibers, and the alkali metal oxide content in the alkali-free glass fibers is less than 0.5%. The alkali-free glass fibers have high tensile strength, high elastic modulus, good rigidity, large elongation and high tensile strength within the elastic limit, and thus absorb large impact energy. The alkali-free glass fibers are inorganic fibers, are non-flammable, have good chemical resistance, and have low water absorption.

[0019] The outer wall of the inner protective layer 1 is provided with a waterproof layer 2, which is woven from polyethylene polypropylene. The polyethylene polypropylene is woven and wound on the inner protective layer 1. The waterproof product produced with polyethylene polypropylene has high tensile strength, strong impermeability, good low-temperature flexibility, small expansion coefficient, low temperature rise effect, strong deformation adaptability, and large friction coefficient, thereby increasing the overall waterproof effect of the casing.

[0020] The outer wall of the waterproof layer 2 is provided with a flame retardant layer 3, the outer wall of the flame retardant layer 3 is provided with an insulating layer 4, the outer wall of the insulating layer 4 is provided with a puncture-proof layer 5, the flame retardant layer 3 is chloroprene rubber, the insulating layer 4 is insulating rubber, and the puncture-proof layer 5 is woven from tinned copper wire. The chloroprene rubber has good flame retardancy, thereby increasing the overall flame retardant effect of the casing, and the insulating rubber increases the insulation of the casing, and the tinned copper wire braided layer can effectively shield external electromagnetic interference, protecting the signal or power transmission inside the cable from the influence of the external electromagnetic environment.

[0021] The outer wall of the puncture-proof layer 5 is provided with an outer protective layer 6, which is an integrated injection-molded rubber sleeve, and the rubber sleeve is convenient for protecting the entire sleeve rod; the surface of the outer protective layer 6 is coated with silicone resin, and the silicone resin has excellent thermal oxidation stability, electrical insulation performance, weather resistance, waterproof, salt spray resistance, mildew resistance, biocompatibility and other properties. By coating the silicone resin on the surface of the outer protective layer 6, it is convenient to increase the service life of the sleeve.

[0022] A buffer ring 7 is provided on the outer wall of the outer sheath 6, a cavity 71 is opened in the buffer ring 7, and a plurality of jet holes 72 are opened on the outer wall of the buffer ring 7 along the circumference. When the sleeve is squeezed, the buffer ring 7 is compressed and deformed to buffer the pressure, and as the buffer ring 7 is compressed, the air inside it is sprayed onto the sleeve surface through the jet holes 72. When the buffer ring 7 loses pressure, new air is inhaled through the jet holes 72. This reciprocating process facilitates accelerating the air flow speed on the sleeve surface, thereby increasing the heat dissipation speed of the sleeve.

[0023] In order to better demonstrate a multifunctional glass fiber insulation sleeve, this embodiment now proposes a multifunctional glass fiber insulation sleeve and a manufacturing process, including the following steps: Step 1: Weave inner sheath 1 and waterproof layer 2 First, the alkali-free glass fiber is evenly woven into an inner protective layer 1 by a winding machine, and then a waterproof layer 2 is evenly woven on the inner protective layer 1 by the winding machine. The waterproof layer 2 is woven from polyethylene polypropylene, so that the inner protective layer 1 and the battery core inside are protected by the polyethylene polypropylene, thereby increasing the waterproof effect of the casing; Step 2: Injection molding of flame retardant layer 3 and insulation layer 4 Then, a flame retardant layer 3 is injection-molded on the outer side of the waterproof layer 2 by an injection molding device, and the flame retardant layer 3 is made of chloroprene rubber. Then, an insulating layer 4 is injection-molded on the outer side of the flame retardant layer 3 by an injection molding device, and the insulating layer 4 is made of insulating rubber. Step 3: Weaving the stab-proof layer 5 Then, a puncture-proof layer 5 is evenly wound around the outer side of the insulating layer 4 by a winding machine, and the puncture-proof layer 5 is woven from tinned copper wire; Step 4: Injection molding outer sheath 6 Then, an outer protective layer 6 is injection molded on the outer wall of the stab-proof layer 5 by an injection molding device. The outer protective layer 6 is made of wear-resistant rubber, and a layer of organic silicone resin is applied on the surface of the outer protective layer 6; Step 5: Vulcanization Finally, the casing is placed in a vulcanizer for vulcanization treatment. During the vulcanization treatment, the temperature is 140-160°C, the pressure is 0.5-1.0MPa, and the vulcanization time is 4-6 hours.

[0024] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional glass fiber insulating sleeve, comprising an inner sheath (1), characterized in that: The outer wall of the inner protective layer (1) is provided with a waterproof layer (2), the outer wall of the waterproof layer (2) is provided with a flame retardant layer (3), the outer wall of the flame retardant layer (3) is provided with an insulating layer (4), the outer wall of the insulating layer (4) is provided with a puncture-proof layer (5), the outer wall of the puncture-proof layer (5) is provided with an outer protective layer (6), and the outer wall of the outer protective layer (6) is provided with a buffer ring (7).

2. The multifunctional glass fiber insulating sleeve according to claim 1, characterized in that: The inner protective layer (1) is woven from alkali-free glass fibers, and the alkali metal oxide content in the alkali-free glass fibers is less than 0.5%. The outer protective layer (6) is an integrally injection-molded rubber sleeve.

3. The multifunctional glass fiber insulating sleeve according to claim 1, characterized in that: The waterproof layer (2) is woven from polyethylene polypropylene fibers, and the polyethylene polypropylene fibers are woven and wound on the inner protective layer (1).

4. The multifunctional glass fiber insulating sleeve according to claim 1, characterized in that: The surface of the outer protective layer (6) is coated with silicone resin.

5. The multifunctional glass fiber insulating sleeve according to claim 1, characterized in that: The flame retardant layer (3) is chloroprene rubber, the insulating layer (4) is insulating rubber, and the puncture-proof layer (5) is woven from tinned copper wires.

6. The multifunctional glass fiber insulating sleeve according to claim 1, characterized in that: A cavity (71) is provided in the buffer ring (7), and a plurality of air injection holes (72) are provided on the outer wall of the buffer ring (7) along the circumference.

7. A process for manufacturing the multifunctional glass fiber insulation sleeve according to any one of claims 1 to 6, comprising the following steps: S101: Braided inner sheath (1) and waterproof layer (2) First, an alkali-free glass fiber is evenly woven into an inner protective layer (1) by a winding machine, and then a waterproof layer (2) is evenly woven on the inner protective layer (1) by the winding machine, wherein the waterproof layer (2) is woven from polyethylene polypropylene; S102: Injection molding of flame retardant layer (3) and insulating layer (4) Then, a flame retardant layer (3) is injection molded on the outer side of the waterproof layer (2) by an injection molding device, and the flame retardant layer (3) is made of chloroprene rubber. Then, an insulating layer (4) is injection molded on the outer side of the flame retardant layer (3) by an injection molding device, and the insulating layer (4) is made of insulating rubber. S103: Braided stab-proof layer (5) Then, a puncture-proof layer (5) is evenly wound around the outer side of the insulating layer (4) by a winding machine, wherein the puncture-proof layer (5) is woven from tinned copper wires; S104: Injection molded outer sheath (6) Then, an outer protective layer (6) is injection molded on the outer wall of the stab-proof layer (5) by an injection molding device, wherein the outer protective layer (6) is made of wear-resistant rubber, and a layer of organic silicone resin is applied on the surface of the outer protective layer (6); S105: Vulcanization Finally, the sleeve is placed in a vulcanizer for vulcanization.

8. The multifunctional glass fiber insulating sleeve according to claim 7, characterized in that: The temperature during the vulcanization treatment is 140-160° C., the pressure is 0.5-1.0 MPa, and the vulcanization time is 4-6 hours.

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