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Method and system for forming strings of pocketed coil springs with traction mechanism

机译:用牵引机构形成袋装螺旋弹簧串的方法和系统

摘要

A string (12) of pocketed coil springs (14) is formed by inserting compressed springs between upper and lower plies of a folded, preferably thermally weldable fabric (16). The springs are maintaned in a compressed configuration while a longitudinal seam (54) joins the free edges of the thermally welded fabric (16) together. Subsequently, the compressed springs (14) are allowed to relax into an expanded configuration after which a transverse seam (80) is formed in the fabric (16) between the adjacent springs (14) thereby encapsulating each spring (14) within a fabric pocket (86). The string (12) of pocketed coil springs (14) is advantageously formed without the need for reorienting the springs (14) after being inserted between the plies (24,26) of the fabric (16) and thereby avoiding the disadvantages and complications associated with turning or reorienting the pocketed coil spring (14).
机译:通过将压缩弹簧插入折叠的,最好是可热焊接的织物( 16)的上层和下层之间,形成袋状螺旋弹簧( 14 )的一串( 12 )。 )。弹簧保持压缩状态,同时纵向接缝( 54 )将热熔接织物( 16 )的自由边缘连接在一起。随后,使压缩弹簧( 14 )松弛成扩张状态,然后在织物( 16 )中形成横向接缝( 80 )。 B>)在相邻的弹簧( 14 )之间,从而将每个弹簧( 14 )封装在织物袋( 86 )中。有利地形成袋装螺旋弹簧( 14 )的弦( 12 ),而无需在插入弹簧之间( 14 )后重新定向织物( 16 )的帘布层( 24,26 ),从而避免了与旋转或重新定位袋装螺旋弹簧( 14 )。

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