烟筒是北方冬季大量消耗的用品,通常它用δ=0.5mm左右的薄铁板经折边、卷弯、咬缝、整形加工制成。其中卷弯常用手工或专用小型三辊卷板机加工。前者劳动强度大、质量差、效率低。后者成形后有直边,设备比较复杂,生产率也不高。为此,研制了皮带包缠成形的烟筒卷弯机(见图),经使用效果良好。 Chimney is a large amount of supplies consumed in northern winter, usually it is made of thin iron plate with δ = 0.5mm by hemming, curling, seaming and shaping. One of the commonly used hand-wound or special small three-roll coiling machine. The former labor-intensive, poor quality, low efficiency. The latter has a straight edge after forming, the equipment is more complicated and the productivity is not high. To this end, the development of a belt wrapped cigarette holder curling machine (see photo), the use of good results.