Technique for producing tyre without inflation

Abstract

The invention relates to the tire production process. It puts elastic material into the inner tire mold in the temperature of 170-260deg.C, foaming, generating bubbles to form the inner tire, pressing in 190 deg.C-280deg.C shaping mold for 1-5 minutes to allow the surface forming into 0.3-3mm hard layer, applying glue at the outside wall of the inner tire in 20deg.C+-10deg.C resting for 150-300 mintues, applying buffer layer at the tire head of the inner tir, putting the mixed rubber into the extending machine through 130+-10deg.C shaped tire glue to form the outside tire, wrapping the circumference of the inner tire to form the tire blank, which is put into the sulfurated mold for sulfuration, then cooling to get the air-charging free tire.There isn't any friction between in and out tires, being air charging free, maintenance free, abrasion resistant, good in elasticity, durable, high in stretch, anti aging and simple and cheap.

Description

technical field

[0001] The invention relates to a production process of a tire, in particular to a production process of an air-free tire. Background technique

[0002] At present, most of the existing production techniques of air-free tires are to produce the outer tire of the tire first, and then use the outer tire of the tire as the main body to add fillers inside. The fillers added are various, and most of them have hollow cores Filler, such as Chinese patent 00241097.4 name: a kind of air-free tire, the tire includes an inner tube and an outer tire, through the valve of the inner tube of the tire, inject elastic filler into the inner tube, thereby obtaining a tire filled with inner tube and inner tube. A non-pneumatic tire synthesized by material and cover tire. The non-inflatable tire is a reprocessed structure on the basis of ordinary pneumatic tires. When in use, the inner tube and outer tire of the tire are still the traditional tire structure, because the inner tu...

Examples

Embodiment 1

[0007] Embodiment 1: 1. Put the organic high elastic material into the inner tube forming mold, the organic high elastic material is PU high elastic material, the temperature of the inner tube forming mold is 180°C, the PU high elastic material is foamed in the inner tube forming mold, Generate a porous foam-shaped inner tube; 2. Put the formed foam-shaped inner tube into a shaping mold at 200 ° C for 3 minutes to make the outer surface of the foam-shaped inner tube melt to form a 2mm induration layer, and cool it out of the mold; 3. On the outer wall of the prefabricated inner tube Apply adhesive and park for 250 minutes at a room temperature of 20°C; 4. Paste a buffer layer with a thickness of 1 mm on the crown of the inner tube. The buffer layer is made of PU high-elastic material to absorb the impact of external forces on the inner tube. The inner tube is made Complete; 5. Put the mixed rubber into the calender, press out the shaped tread rubber at 130°C on the three-roller...

Embodiment 2

[0008] Embodiment 2: 1. Put the EVA elastic material into the inner tube forming mold. The temperature of the inner tube forming mold is 170°C. The EVA elastic material is foamed in the inner tube forming mold to generate a non-porous foam-shaped inner tube; 2. The formed foam-shaped inner tube is pressed into a shaping mold at 190°C for 1 minute, so that the outer surface of the foam-shaped inner tube is melted to form a 0.3mm induration layer, and the mold is cooled; 3. Coat the outer wall of the prefabricated inner tube with adhesive, , parked for 150 minutes; 4. Paste a buffer layer with a thickness of 2 mm on the crown of the inner tube. The buffer layer is made of EVA high-elastic material, and the inner tube is completed; The calender presses out the shaped tread rubber at 120°C to form the outer tire. Wrap the tread rubber around the outer circumference of the inner tube and apply a pressure of 1 MPa to further bond the tread rubber to the inner tube coated with the adh...

Embodiment 3

[0009] Embodiment 3: 1. Put the rubber high-strength elastic material into the inner tube forming mold. The temperature of the inner tube forming mold is 260°C. The rubber high-strength elastic material is foamed in the inner tube forming mold to generate a porous foam-shaped inner tube; 2 1. Put the formed foam-shaped inner tube into a 280°C shaping mold and press for 5 minutes, so that the outer surface of the foam-shaped inner tube melts to form a 3mm hard layer, and the mold is cooled; 3. Coat the outer wall of the prefabricated inner tube. ℃, parked for 300 minutes; 4. Paste a buffer layer with a thickness of 3 mm on the crown of the inner tube. The buffer layer is made of high elastic rubber material to absorb the impact of external force on the inner tube. The inner tube is completed; 5. Mix the The rubber is put into the calender, and the shaped tread rubber is extruded in the three-roller calender at 140°C to form the outer tire, and the tread rubber is wrapped around ...

technical field

[0001] The invention relates to a production process of a tire, in particular to a production process of an air-free tire. Background technique

[0002] At present, most of the existing production techniques of air-free tires are to produce the outer tire of the tire first, and then use the outer tire of the tire as the main body to add fillers inside. The fillers added are various, and most of them have hollow cores Filler, such as Chinese patent 00241097.4 name: a kind of air-free tire, the tire includes an inner tube and an outer tire, through the valve of the inner tube of the tire, inject elastic filler into the inner tube, thereby obtaining a tire filled with inner tube and inner tube. A non-pneumatic tire synthesized by material and cover tire. The non-inflatable tire is a reprocessed structure on the basis of ordinary pneumatic tires. When in use, the inner tube and outer tire of the tire are still the traditional tire structure, because the inner tu...

Examples

Embodiment 1

[0007] Embodiment 1: 1. Put the organic high elastic material into the inner tube forming mold, the organic high elastic material is PU high elastic material, the temperature of the inner tube forming mold is 180°C, the PU high elastic material is foamed in the inner tube forming mold, Generate a porous foam-shaped inner tube; 2. Put the formed foam-shaped inner tube into a shaping mold at 200 ° C for 3 minutes to make the outer surface of the foam-shaped inner tube melt to form a 2mm induration layer, and cool it out of the mold; 3. On the outer wall of the prefabricated inner tube Apply adhesive and park for 250 minutes at a room temperature of 20°C; 4. Paste a buffer layer with a thickness of 1 mm on the crown of the inner tube. The buffer layer is made of PU high-elastic material to absorb the impact of external forces on the inner tube. The inner tube is made Complete; 5. Put the mixed rubber into the calender, press out the shaped tread rubber at 130°C on the three-roller...

Embodiment 2

[0008] Embodiment 2: 1. Put the EVA elastic material into the inner tube forming mold. The temperature of the inner tube forming mold is 170°C. The EVA elastic material is foamed in the inner tube forming mold to generate a non-porous foam-shaped inner tube; 2. The formed foam-shaped inner tube is pressed into a shaping mold at 190°C for 1 minute, so that the outer surface of the foam-shaped inner tube is melted to form a 0.3mm induration layer, and the mold is cooled; 3. Coat the outer wall of the prefabricated inner tube with adhesive, , parked for 150 minutes; 4. Paste a buffer layer with a thickness of 2 mm on the crown of the inner tube. The buffer layer is made of EVA high-elastic material, and the inner tube is completed; The calender presses out the shaped tread rubber at 120°C to form the outer tire. Wrap the tread rubber around the outer circumference of the inner tube and apply a pressure of 1 MPa to further bond the tread rubber to the inner tube coated with the adh...

Embodiment 3

[0009] Embodiment 3: 1. Put the rubber high-strength elastic material into the inner tube forming mold. The temperature of the inner tube forming mold is 260°C. The rubber high-strength elastic material is foamed in the inner tube forming mold to generate a porous foam-shaped inner tube; 2 1. Put the formed foam-shaped inner tube into a 280°C shaping mold and press for 5 minutes, so that the outer surface of the foam-shaped inner tube melts to form a 3mm hard layer, and the mold is cooled; 3. Coat the outer wall of the prefabricated inner tube. ℃, parked for 300 minutes; 4. Paste a buffer layer with a thickness of 3 mm on the crown of the inner tube. The buffer layer is made of high elastic rubber material to absorb the impact of external force on the inner tube. The inner tube is completed; 5. Mix the The rubber is put into the calender, and the shaped tread rubber is extruded in the three-roller calender at 140°C to form the outer tire, and the tread rubber is wrapped around ...