Clearance adjustment for conveying rollers of embroidery machine

Abstract

The invention discloses a clearance adjustment for conveying rollers of an embroidery machine. The clearance adjustment comprises a base, an upper presser wheel, a lower roller, U-shaped frames, presser plates, adjusting screws, fixed bearing blocks, moving bearing blocks, and springs; the U-shaped frames are arranged on the two sides of the base respectively; the inside of each U-shaped frame isprovided with a U-shaped channel; one presser plate is arranged at the top of each U-shaped frame; one fixed bearing block is arranged at the inner bottom of each U-shaped channel; positioning terminals are arranged at the upper end of each fixed bearing block; each positioning terminal is provided with one spring; each spring is provided with one moving bearing block; each presser plate is provided with a screw hole I in which one adjusting screw is arranged; a bearing hole II is formed in each fixed bearing block; the bearing holes II are connected with rolling bearings II on the shaft endsII of the lower roller; one bearing hole I is formed in each moving bearing block; the bearing holes II are connected with ball bearings I at the shaft ends of the upper presser wheel; the outer sideof each U-shaped channel is provided with four flat washers; the flat washers are connected with the corresponding U-shaped channel via fastening screws. The upper presser wheel is adjustable; a clearance between the upper presser wheel and the lower roller is adjustable; a distance is controlled through graduation marks to adapt to conveying of fabrics different in thickness.

Description

technical field [0001] The invention relates to a device for adjusting the middle gap of cloth conveying rollers of different thicknesses, in particular to an adjusting device for adjusting the gap between the conveying rollers of an embroidery machine. Background technique [0002] The rough face cloth is generally a large cloth roll, which needs to be divided into rolls of fixed length with a cloth rolling equipment. During the transmission process, it needs to be conveyed and supported by rollers. The transmission rollers are generally two upper and lower. The cloth passes through the gap in the middle of the drum, but different fabrics have different thicknesses. However, when the gap in the middle of the current drum is generally fixed, either the gap is too large, and the transmission of the cloth on the opposite side of the drum is easy to slip, or the gap is too small, and the cloth on the opposite side extrusion. Contents of the invention [0003] The purpose of ...

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Problems solved by technology

[0002] The rough face cloth is generally a large cloth roll, which needs to be divided into fixed-length rolls with cloth rolling equipment. During the transmission process, it needs to be conveyed and supported by rollers. The conveying rollers are generally two upper and lower rollers. The cloth passes through the gap in the middle of the drum, but different fabrics have different thicknesses. However, when the gap in the middle of the current drum is generally fixed, either the gap is too large, and the transmission of the cloth on the opposite side of the drum is easy to slip, or the gap is too small, and the cloth on the opposite side extrusion

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