Cross lapping machine

Abstract

The invention provides a cross lapping machine, which relates to a cross lapping machine for fiber webs in non-woven fabric processing. The cross lapping machine comprises a controller, a body, a discharging bench, a lapping trolley and a feeding and conveying curtain for the fiber webs, wherein the feeding and conveying curtain and the discharging bench form an angle of 90 degrees; and the lapping trolley reciprocates to swing in a feeding direction. The cross lapping machine also comprises a lapping trolley position sensing device and a traction mechanism, wherein the lapping trolley position sensing device comprises two sensors which are arranged on the body corresponding to rotation decelerating points at two ends of a lapping trolley stroke respectively; the two sensors are connectedwith the controller respectively; the traction mechanism comprises a first traction roll and a second traction roll which are arranged above the conveying curtain in parallel; the first traction rollis driven by a constant-speed motor; the second traction roll is driven by a variable-speed motor; and the constant-speed motor and the variable-speed motor are connected with the controller respectively. The cross lapping machine greatly improves the transverse thickness consistency of the breadth of a non-woven fabric, avoids the condition that the thickness of both sides is greater than that of the middle part, and greatly improves the quality of products.

Description

technical field

[0001] The invention relates to a fiber web cross-plying machine in non-woven fabric processing, in particular to an improvement on the cross-plying machine. Background technique

[0002] In the non-woven fabric processing, the continuous web laying process is to feed the fiber web into the cross-lapper through the mesh delivery curtain, and use the trolley in the cross-lapper to swing the fiber web left and right in a direction that is in line with the direction of the fiber web. On the discharge machine that moves in a straight line at 90°; the output from the discharge machine is the continuous cross-laminated semi-finished product, which is then spunlace and dried to become a finished non-woven fabric. This processing method and the special equipment produced according to this processing method have always had a problem that has been difficult to solve, that is, when the trolley runs close to both ends, there is a deceleration --- 0 speed --- Acceleratio...

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