Elastic member guide device and method of manufacturing disposable wearing article

Abstract

The invention provides an elastic member guide device and a method of manufacturing a disposable wearing article. When a plurality of elastic members in a tense state which are fed continuously are disposed on one surface of a web which is fed continuously at intervals in the lateral direction of the web, the intervals between the elastic members can be set arbitrarily and easily. The elastic member guide device comprises a drive shaft (12a) on which a plurality of pulleys (21, 31, 41) are detachably arranged coaxially in the axial direction, transmission belts (23, 33, 43) wrapped around the pulleys (21, 31, 41), respectively, and a drive section (12) for controlling the forward and reverse rotations of the drive shaft (12a). Guides (25, 35, 45) are affixed to the transmission belts (23, 33, 43), respectively, and pulley diameter ratios are determined between the pulleys (21, 31, 41). Consequently, the difference between the feed amount of the web in the lateral direction can be set for each of the guides (25, 35, 45).

Description

technical field [0001] The present invention relates to a technique for manufacturing a shrinkable fabric by fixing an elastic member in a stretched state to the fabric. Background technique [0002] In the past, a plurality of elastic members in a stretched state were sent out continuously, and they were fixed on one side of the continuously conveyed fabric at intervals in the width direction of the fabric, thereby greatly improving the shrinkability of the fabric. . At this time, in order to control the positional range, direction, etc. for increasing the shrinkage of the fabric, the parallel interval between adjacent elastic members in the width direction of the fabric may be changed. In this case, the above-mentioned parallel interval is changed by forcibly changing the position (fixed position) of each elastic member in contact with one side of the fabric. [0003] Conventionally, in order to control the above-mentioned parallel interval, an elastic member guide devic...

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned Patent Document 1, there is no specific reference to how to move the guide in the width direction of the fabric, and it is possible to widen the interval between the fixed positions of the elastic members passing through the holes of the same guide.

Even if the elastic members are loosened by the action of the reciprocating movement of the guide, it is difficult to predict the state of the loosening, so trial and error repeatedly occurs and adjustments are necessary

In addition, it is very limited to control the dispersed state only by the reciprocating movement of the guide, and also limits the range that can be set for the fixed position interval in the fabric width direction between the elastic members.

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