STB Double-Drum Tire Building Machine

Product Features:

High efficiency

High quality

Integral welded mainframe
Spring reversed tire drum (with vacuum suction port, suitable for tires without liner)
Two-stage servo conveyor feeding to improve fixed length accuracy
Automatic fixed length and automatic cutting of each layer of material
Carcass layer joint detection (flash seam, wrong angle, big and small head, missing paste)
Ultrasonic cutter is used for tread, and the cutting edge of the head and tail of the material is heated

High degree of automation, low labor intensity

High safety factor

Wide range of application

Applicable to the manufacture of motorcycle tires, agricultural tires and industrial special tires

Items		Parameters
Forming range		14"-18" (08"-12", 12"-16")
Equipment center height		850-1000mm
Rolling width		0~350mm
Rolling speed		32.2mm/s
Feeding form of tread, cord, liner		Trolley type
Lamination method of each layer of material		Top mount type
Inner rubber	Width	80mm-240mm
	Thickness	0.4mm-1.4mm
	Cutting angle	35°
	Cutting method	Disc knife
Curtain fabric	Width	150mm-380mm
	Thickness	0.75mm-1.2mm
	Cutting angle	24°-48°
	Cutting method	Thermal cutting knife
Buffer layer width		50mm-240mm
Tread rubber	Width	160mm-250mm
	Thickness	5mm-15mm
	Cutting angle	20°-30°
	Cutting method	Ultrasonic cutter
Overall efficiency		≤22 seconds (liner × 1 + cord × 3 + tread × 1)
Dimensions		12000mm long × 6500mm wide × 3800mm high

Items	Accuracy
Levelness of guide rails of carcass drum	≤ 0.05mm/m
Radial runout of carcass drum main shaft	≤ 0.1mm
Axial runout of carcass drum main shaft	≤ 0.1mm
Radial runout of tread drum main shaft	≤ 0.1mm
Axial runout of tread drum main shaft	≤ 0.1mm
Coaxiality of carcass drum and tread drum	≤ 0.5mm
Coaxiality of carrying ring and tread drum	≤ 0.5mm
Coaxiality of carrying ring and carcass drum	≤ 0.5mm
Coaxiality of carrying ring and wire ring placement groove	≤ 0.5mm
Repeat positioning accuracy of carrying ring	≤ ±0.2mm
Inner rubber fixed length accuracy	±2mm
Inner rubber bonding accuracy	±2mm
Cord fixed length accuracy	±2mm (Two yarns)
Cord bonding accuracy	3~5mm
Cord single-side joint misalignment	±3mm
Tread fixed length accuracy	±2mm
Tread single-side joint deviation	≤3mm

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