Retractable screen mesh and method of making same

Abstract

This invention belongs to the technical field of wire mesh and its preparation method, and discloses a wire mesh for rewinding steel wire window screen and its preparation method. Its main technical features are: it includes longitudinal and transverse wires; the longitudinal wires include a longitudinal wire outer layer and a longitudinal wire core; the longitudinal wire core includes a steel wire rope made of multiple single steel wires twisted together; the transverse wires include a transverse wire outer layer and a transverse wire core; longitudinal wire grooves are provided on the longitudinal wires at the junction of the longitudinal and transverse wires, and transverse wire grooves are provided on the transverse wires at the junction of the longitudinal and transverse wires; the longitudinal wire grooves and transverse wire grooves are interlocked. The steel wires are twisted into a steel wire rope through a twisting and rope-forming process; a non-metallic outer layer is wrapped around the outside of the steel wire rope by dip coating or extrusion to form braided yarn; the braided yarn is woven into a wire mesh using a braiding machine; the woven wire mesh is then heated and rolled for shaping; and the pressure-shaped wire mesh is wound onto a take-up roller using a take-up mechanism. The entire longitudinal wire core has good flexibility, is easy to bend, and has high tensile strength; the outer layer can increase corrosion resistance and improve the service life of the entire mesh; the mesh always remains flat.

Description

Technical Field

[0001] This invention belongs to the technical field of wire mesh and its preparation method, and particularly relates to a wire mesh for rewinding steel wire window screen and its preparation method. Background Technology

[0002] Traditional window screens mostly consist of a frame and a screen, with the screen fixed to the frame. When opening and closing these screens, both the frame and the screen rotate simultaneously, making opening and closing inconvenient. Especially in the animal screen industry, retractable screens are used for ease of use. Currently, retractable screens are mainly made of non-metallic materials such as fiberglass. The aforementioned non-metallic window screens have the following drawbacks: First, they have a high thermal elongation rate. In hot summers, the screen stretches, making it uneven and affecting light transmission, resulting in a poor appearance. Second, non-metallic window screens have poor impact resistance. For pet cage doors and windows, pets can easily tear the screens with their bites and claws, leading to a short lifespan. Third, non-metallic window screens have poor light transmission, resulting in poor lighting inside pet cages. Fourth, after repeated rolling and unfolding, non-metallic window screens are prone to breakage, significantly reducing their lifespan. Fifth, under external force, the longitudinal and transverse threads of the woven screen can shift, causing uneven mesh size. Summary of the Invention

[0003] The first technical problem to be solved by this invention is to provide a rewinding wire window screen mesh that has a long service life, good impact resistance, low thermal elongation, a flatter mesh surface, and good light transmission.

[0004] To solve the above problems, the technical solution adopted by the rewinding steel wire window screen mesh of the present invention is as follows: it includes longitudinal wires and transverse wires. The longitudinal wires include a longitudinal wire outer layer and a longitudinal wire core. The longitudinal wire core includes a steel wire rope made of multiple single steel wires twisted together. The transverse wires include a transverse wire outer layer and a transverse wire core. A longitudinal wire groove is provided on the longitudinal wire at the junction of the longitudinal wires and transverse wires, and a transverse wire groove is provided on the transverse wire at the junction of the longitudinal wires and transverse wires. The longitudinal wire grooves and transverse wire grooves are interlocked together.

[0005] Its additional technical features are: The transverse core comprises a steel wire rope made of multiple single strands of steel wire; The longitudinal core comprises a steel wire rope made of seven single-strand steel wires, and the transverse core comprises a steel wire rope made of seven single-strand steel wires. At the junction of the longitudinal and transverse threads, there is a longitudinal thread pressing plane on the side of the longitudinal thread away from the junction point, and at the junction of the longitudinal and transverse threads, there is a transverse thread pressing plane on the side of the transverse thread away from the junction point. The thickness of the outer layer is 0.05-0.1 mm; The diameter of the single steel wire is 0.05-0.08 mm, and the diameter of the twisted steel wire rope is 0.15-0.24 mm; The longitudinal and transverse wires are bonded together at their joints.

[0006] The second technical problem to be solved by the present invention is to provide a method for preparing the above-mentioned rewinding steel wire window screen mesh.

[0007] To solve the above problems, the technical solution adopted in the preparation method of the above-mentioned rewinding steel wire window screen mesh of the present invention is as follows: The method includes the following steps: Step 1: Twisting the steel wire rope Steel wires are twisted into steel wire ropes through twisting and rope-making processes. Step 2: Wrap the steel wire rope with an outer layer. A non-metallic outer layer is wrapped around the outside of the steel wire rope by dip coating or extrusion to form braided filaments; Step 3, weaving the mesh Use a braiding machine to weave the braided yarns into a mesh; Step 4: Apply pressure to set the shape. The woven mesh is pressed and shaped by heated rollers at a temperature of 50℃-200℃. The closest distance between the outer surfaces of the two heated rollers is 1.6-1.8 times the diameter of the outer layer. Under high temperature and pressure, longitudinal wire grooves are formed on the longitudinal wires at the junction of the longitudinal and transverse wires, and transverse wire grooves are formed on the transverse wires at the junction of the longitudinal and transverse wires. The longitudinal and transverse wire grooves are interlocked. A longitudinal wire pressing plane is formed on the side of the longitudinal wire away from the junction point at the junction of the longitudinal and transverse wires, and a transverse wire pressing plane is formed on the side of the transverse wire away from the junction point at the junction of the longitudinal and transverse wires. Step 5, closing the net. The netting mechanism is used to wind the pressure-set netting onto the netting roller.

[0008] As a further improvement, in the fourth step, the pressure setting step, the temperature of the heating roller is 160°C-170°C, and the closest distance between the outer surfaces of the two heating rollers is 1.7 times the diameter of the outer jacket layer.

[0009] Compared with the prior art, the rewindable steel wire window screen mesh and its preparation method provided by this invention have the following advantages: Firstly, the device comprises longitudinal and transverse wires. The longitudinal wires include a longitudinal outer sheath and a longitudinal core, with the core consisting of a steel wire rope made of multiple single steel wires twisted together. The transverse wires include a transverse outer sheath and a transverse core. Longitudinal wire grooves are provided on the longitudinal wires at the junction of the longitudinal and transverse wires, and transverse wire grooves are provided on the transverse wires at the junction of the longitudinal and transverse wires. These longitudinal and transverse wire grooves interlock. The steel wires are twisted into a steel wire rope through a twisting and rope-forming process. A non-metallic outer sheath is coated onto the outside of the steel wire rope using impregnation or extrusion to create braided wires. The braided wires are then woven into a mesh using a braiding machine. The woven mesh is then pressed and shaped using heated rollers at temperatures ranging from 50°C to 200°C, with the closest distance between the outer surfaces of the two heated rollers being 1.6 to 1.8 times the diameter of the outer sheath. Finally, a winding mechanism winds the pressed and shaped mesh onto a winding roller. The advantages of this rewindable steel wire window screen mesh are as follows: Advantage 1: The longitudinal core consists of multiple steel wires twisted together, which makes the entire longitudinal core flexible, easy to bend, and has high tensile strength. The second advantage is that a non-metallic outer layer is wrapped around the outside of the steel wire rope by dip coating or extrusion. The outer layer can be made of non-metallic materials such as nylon and polyurethane. Color dyes can be mixed into the outer layer, making the screen window more beautiful overall. Moreover, the outer layer can increase the corrosion resistance and improve the service life of the entire mesh. Thirdly, the outer layer can protect the steel wire and prevent it from being scratched. Fourthly, the woven mesh is pressed and shaped by heated rollers at a temperature of 50℃-200℃. The closest distance between the outer surfaces of the two heated rollers is 1.6-1.8 times the diameter of the outer layer. This creates longitudinal wire grooves at the junction of the longitudinal and transverse wires, and transverse wire grooves at the junction of the longitudinal and transverse wires. These grooves interlock, and the longitudinal and transverse wires of the woven mesh are interlocked, preventing the longitudinal and transverse wires from moving. This results in more uniform mesh size and better light transmission. Fifthly, the woven mesh is pressed and shaped by heated rollers at a temperature of 50℃-200℃. The closest distance between the outer surfaces of the two heated rollers is 1.6-1.8 times the diameter of the outer layer. A longitudinal wire pressing plane is formed on the side of the longitudinal wire away from the joint point at the junction of the longitudinal and transverse wires, and a transverse wire pressing plane is formed on the side of the transverse wire away from the joint point at the junction of the longitudinal and transverse wires. This results in good mesh flatness and reduced overall mesh thickness. Advantage six: The steel wire has a low coefficient of thermal expansion, so the mesh remains flat regardless of whether it is hot summer or cold winter. It not only has high impact resistance but also high light transmittance.

[0010] Secondly, since the cross wire core includes a steel wire rope made of multiple single steel wires twisted together, the mesh has better flexibility. Thirdly, since the longitudinal wire core includes a steel wire rope made of seven single-strand steel wires and the transverse wire core includes a steel wire rope made of seven single-strand steel wires, the entire mesh is flatter and has stronger impact resistance. Fourth, because the longitudinal wire has a flat surface on the side away from the junction of the longitudinal and transverse wires, and the transverse wire has a flat surface on the side away from the junction of the longitudinal and transverse wires, the mesh has good flatness and the overall thickness of the mesh is reduced. Fifth, since the thickness of the outer layer is 0.05-0.1mm, it not only improves the corrosion resistance of the mesh, but also makes the mesh easier to roll up; Sixth, since the diameter of the individual steel wires is 0.05-0.08mm, and the diameter of the twisted steel wire rope is 0.15-0.24mm, processing is more convenient and the mesh is easier to roll. Seventh, because the longitudinal and transverse wires are bonded together, the longitudinal and transverse wires are more firmly fixed, and the mesh is more uniform. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the wire mesh for rewinding steel wire window screen according to the present invention; Figure 2 for Figure 1 AA cross-section view; Figure 3 for Figure 2 Enlarged view at point C Figure 4 for Figure 1 BB cross-section; Figure 5 for Figure 4 Enlarged view of point D in the middle. Detailed Implementation

[0012] The structure, working principle, and preparation method of the rewinding steel wire window screen mesh of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0013] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown in the schematic diagram, the rewinding wire mesh of the present invention includes longitudinal wires 1 and transverse wires 2. The longitudinal wire 1 includes a longitudinal wire outer layer 3 and a longitudinal wire core 4. The longitudinal wire core 4 includes a steel wire rope made of multiple steel wire monofilaments 5. The transverse wire 2 includes a transverse wire outer layer 6 and a transverse wire core 7. A longitudinal wire groove 8 is provided on the longitudinal wire 1 at the junction of the longitudinal wire 1 and the transverse wire 2. A transverse wire groove 9 is provided on the transverse wire 2 at the junction of the longitudinal wire 1 and the transverse wire 2. The longitudinal wire groove 8 and the transverse wire groove 9 are interlocked together. Steel wires are twisted into steel wire ropes through a twisting and rope-forming process. A non-metallic outer layer is then coated onto the outside of the steel wire rope using dip coating or extrusion to create braided yarns. These braided yarns are then woven into a mesh using a braiding machine. The woven mesh is then pressed and shaped using heated rollers at temperatures ranging from 50℃ to 200℃, with the closest distance between the outer surfaces of the two heated rollers being 1.6 to 1.8 times the diameter of the outer layer. Finally, a winding mechanism winds the pressure-shaped mesh onto a winding roller. The advantages of this rewindable steel wire window screen mesh are as follows: Advantage 1: The longitudinal core 4 consists of multiple steel wires twisted into a single strand 5. The entire longitudinal core has good flexibility, is easy to bend, and has high tensile strength. The second advantage is that a non-metallic outer layer 3 is wrapped around the outside of the steel wire rope by dip coating or extrusion. The outer layer 3 can be made of non-metallic materials such as nylon and polyurethane. Color dye can be mixed into the outer layer 3, making the screen window more beautiful overall. Moreover, the outer layer can increase the corrosion resistance and improve the service life of the entire mesh. Thirdly, the outer layer 3 can protect the steel wire and prevent it from being scratched. Fourthly, the woven mesh is pressed and shaped by heated rollers at a temperature of 50℃-200℃. The closest distance between the outer surfaces of the two heated rollers is 1.6-1.8 times the diameter of the outer layer. This creates longitudinal wire grooves at the junction of the longitudinal and transverse wires, and transverse wire grooves at the junction of the longitudinal and transverse wires. These grooves interlock, and the longitudinal and transverse wires of the woven mesh are interlocked, preventing the longitudinal and transverse wires from moving. This results in more uniform mesh size and better light transmission. Fifthly, the woven mesh is pressed and shaped by heated rollers at a temperature of 50℃-200℃. The closest distance between the outer surfaces of the two heated rollers is 1.6-1.8 times the diameter of the outer layer. A longitudinal wire pressing plane is formed on the side of the longitudinal wire away from the joint point at the junction of the longitudinal and transverse wires, and a transverse wire pressing plane is formed on the side of the transverse wire away from the joint point at the junction of the longitudinal and transverse wires. This results in good mesh flatness and reduced overall mesh thickness. Advantage six: The steel wire has a low coefficient of thermal expansion, so the mesh remains flat regardless of whether it is hot summer or cold winter. It not only has high impact resistance but also high light transmittance.

[0014] The cross wire core 7 consists of multiple steel wires twisted into a single strand 10, which makes the mesh more flexible.

[0015] The longitudinal core 4 consists of a steel wire rope made of seven single steel wires 5 twisted together, and the transverse core 7 consists of a steel wire rope made of seven single steel wires 10 twisted together. In this way, the entire mesh is flatter and has stronger impact resistance.

[0016] At the junction of longitudinal wire 1 and transverse wire 2, there is a longitudinal wire pressing plane 11 on the side of the longitudinal wire away from the junction point, and a transverse wire pressing plane 12 on the side of the transverse wire away from the junction point. The mesh has good flatness and the overall thickness of the mesh is reduced.

[0017] The outer layer 3 has a thickness of 0.05-0.1mm, which not only improves the corrosion resistance of the mesh, but also makes the mesh easier to roll up.

[0018] The diameter of a single steel wire is 0.05-0.08mm, and the diameter of the twisted steel wire rope is 0.15-0.24mm, making processing easier and facilitating the coiling of the mesh.

[0019] The longitudinal wire 1 and the transverse wire 2 are bonded together, making the longitudinal and transverse wires more firmly fixed and the mesh more uniform.

[0020] The technical solution adopted in the preparation method of the above-mentioned rewinding steel wire window screen mesh is as follows: The method includes the following steps: Step 1: Twisting the steel wire rope Steel wires are twisted into steel wire ropes through twisting and rope-making processes. Step 2: Wrap the steel wire rope with an outer layer. A non-metallic outer layer is wrapped around the outside of the steel wire rope by dip coating or extrusion to form braided filaments; Step 3, weaving the mesh Use a braiding machine to weave the braided yarns into a mesh; Step 4: Apply pressure to set the shape. The woven mesh is pressed and shaped by heated rollers at a temperature of 50℃-200℃. The closest distance between the outer surfaces of the two heated rollers is 1.6-1.8 times the diameter of the outer layer. Under high temperature and pressure, longitudinal wire grooves are formed on the longitudinal wires at the junction of the longitudinal and transverse wires, and transverse wire grooves are formed on the transverse wires at the junction of the longitudinal and transverse wires. The longitudinal and transverse wire grooves are interlocked. A longitudinal wire pressing plane is formed on the side of the longitudinal wire away from the junction point at the junction of the longitudinal and transverse wires, and a transverse wire pressing plane is formed on the side of the transverse wire away from the junction point at the junction of the longitudinal and transverse wires. Step 5, closing the net. The netting mechanism is used to wind the pressure-set netting onto the netting roller.

[0021] As a further improvement, in the fourth step, the pressure setting step, the temperature of the heating roller is 160°C-170°C, and the closest distance between the outer surfaces of the two heating rollers is 1.7 times the diameter of the outer jacket layer.

[0022] The scope of protection of this invention is not limited to the above embodiments. Any structure that is the same as or similar to the structure of the rewinding wire mesh for window screens of this invention, or the method that is the same as or similar to the preparation method of the rewinding wire mesh for window screens, falls within the scope of protection of this invention.

Claims

1. A rewinding wire mesh for window screens, comprising longitudinal and transverse wires, characterized in that: The longitudinal wire includes a longitudinal wire outer layer and a longitudinal wire core. The longitudinal wire core includes a steel wire rope made of multiple single steel wires twisted together. The transverse wire includes a transverse wire outer layer and a transverse wire core. A longitudinal wire groove is provided on the longitudinal wire at the junction of the longitudinal wire and the transverse wire, and a transverse wire groove is provided on the transverse wire at the junction of the longitudinal wire and the transverse wire. The longitudinal wire groove and the transverse wire groove are interlocked together.

2. The rewinding wire mesh for window screens according to claim 1, characterized in that: The transverse core comprises a steel wire rope made of multiple single-strand steel wires twisted together.

3. The rewinding wire mesh for window screens according to claim 2, characterized in that: The longitudinal core comprises a steel wire rope made of seven monofilaments, and the transverse core comprises a steel wire rope made of seven monofilaments.

4. The rewinding wire mesh for window screens according to claim 1, characterized in that: At the junction of the longitudinal and transverse threads, there is a longitudinal thread pressing plane on the side of the longitudinal thread away from the junction point, and at the junction of the longitudinal and transverse threads, there is a transverse thread pressing plane on the side of the transverse thread away from the junction point.

5. The rewinding wire mesh for window screens according to claim 1, characterized in that: The thickness of the outer layer is 0.05-0.1 mm.

6. The rewinding wire mesh for window screens according to claim 1, 2, or 3, characterized in that: The diameter of the single wire is 0.05-0.08mm, and the diameter of the twisted wire rope is 0.15-0.24mm.

7. The rewinding wire mesh for window screens according to claim 1, characterized in that: The longitudinal and transverse wires are bonded together at their joints.

8. The method for preparing the rewinding steel wire window screen mesh according to claim 1, 2, 3, 4 or 5, characterized in that: The method includes the following steps: Step 1: Twisting the steel wire rope Steel wires are twisted into steel wire ropes through twisting and rope-making processes. Step 2: Wrap the steel wire rope with an outer layer. A non-metallic outer layer is wrapped around the outside of the steel wire rope by dip coating or extrusion to form braided filaments; Step 3, weaving the mesh Use a braiding machine to weave the braided yarns into a mesh; Step 4: Apply pressure to set the shape. The woven mesh is pressed and shaped by heated rollers at a temperature of 50℃-200℃. The closest distance between the outer surfaces of the two heated rollers is 1.6-1.8 times the diameter of the outer layer. Under high temperature and pressure, longitudinal wire grooves are formed on the longitudinal wires at the junction of the longitudinal and transverse wires, and transverse wire grooves are formed on the transverse wires at the junction of the longitudinal and transverse wires. The longitudinal and transverse wire grooves are interlocked. A longitudinal wire pressing plane is formed on the side of the longitudinal wire away from the junction point at the junction of the longitudinal and transverse wires, and a transverse wire pressing plane is formed on the side of the transverse wire away from the junction point at the junction of the longitudinal and transverse wires. Step 5, closing the net. The netting mechanism is used to wind the pressure-set netting onto the netting roller.

9. The method for preparing the wire mesh for rewinding window screens according to claim 8, characterized in that: In step 4, the pressure setting step, the temperature of the heating roller is 160℃-170℃, and the closest distance between the outer surfaces of the two heating rollers is 1.7 times the diameter of the outer jacket layer.

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