A Wrap Angle Adjustable Expanding Device with Cloth Length Compensation Function

Abstract

The invention discloses a wrap angle adjustable fabric expanding device with a cloth length compensation function. The device comprises a frame, a spreading roller transmission assembly, a spreading roller assembly, a worm gear-worm assembly for adjusting the wrap angle, and a synchronous belt-pressing wheel assembly; the spreading roller transmission assembly is sleevedly arranged in the center hole in the right end of the spreading roller assembly; the synchronous belt-pressing wheel assembly is fixed on the support plate in the right end of the spreading roller assembly; the support shaft in the left end of the spreading roller assembly is provided with a gear; the worm gear-worm assembly comprises a worm gear, a worm gear seat, a worm, and a hand wheel; the lower side of the gear is provided with a roller; the roller is assembled with a bearing and a core shaft, then the roller, bearing, and core shaft is fixed on the frame as a whole; a rack is arranged between the gear and the roller, the rack is connected to a cylinder, the cylinder is fixedly connected to the frame, the cylinder drives a piston rod to move forward and backward so as to drive the spreading roller assembly to swing in a clockwise direction or a counter-clockwise direction. When the fabric seam goes through the milling roller, the loosen fabric can be tensioned under the assistance of press roller's movement, and the tension force of the fabric is basically not changed.

Description

technical field [0001] The invention relates to an expansion device in textile finishing equipment, in particular to a wrap angle adjustable expansion device with cloth length compensation function. Background technique [0002] At present, in the common multi-roller sander, the contact and separation between the fabric and the roller are realized by the advance and retreat of the pressing roller; before entering the sanding area, an expanding roller is generally installed. Angle-adjustable expander roll, with the function of expanding and fabric wrapping angle adjustment. When the fabric seam passes through the sanding roller, in order to prevent the seam from being worn off, the pressure roller retreats to separate the fabric seam from the sanding roller, but in this way, the fabric length between the front and rear guide rollers will be shortened. There will be changes, that is, the tension of the fabric will change, which will affect the quality of the sanding to a cert...

AI Technical Summary

Problems solved by technology

When the fabric seam passes through the grinding roller, in order to prevent the seam from being worn off, the pressure roller retreats to separate the fabric seam from the grinding roller, but in this way, the fabric cloth length between the front and rear cloth guide rollers It will change, that is, the tension of the fabric will change, which will affect the quality of sanding to a certain extent.

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