Background of the Invention
[Field of the Invention]
[0001] The present invention relates to a cloth guide for draft rollers provided on spinning
machinery, which is for moving a clearer cloth to remove scraps of fiber sticking
to the surface of the draft rollers and more particularly to a cloth guide for urging
a clearer cloth onto draft rollers for a type of clearer device wherein a clearer
cloth is sequentially fed and the scraps of fiber sticking to the surface of the said
clearer cloth is removed by combing.
[Description of the Related Arts]
[0002] As shown in Fig. 2, a cloth guide 14 has been screwed on a cloth plate 11 with a
screw 12 in the priot art. As a result, the position wherein the said cloth guide
14 is fixed must be changed frequently as roller gauges 15 between draft rollers 13
are changed depending on the types of fibers such as natual fibers, chemical and synthetic
fibers, and various short and long fibers.
[0003] On the other hand, many pieces of spinning machinery are in general installed at
a time to meet the demands for mass production capability realized by promoting use
of large packages and enhancing the speed and performance. As a result, operators
of spinning machinery spend a great amount of time in changing the roller gauges 15
between draft rollers and the position wherein the cloth guide 14 is fixed in response
to frequent changes in the types of fibers processed. At the same time, there is always
a rush for production of diversified items in small quantities in order to meet the
demands in marketplace reflecting the consumers' liking which has been increasingly
individualized in recent years. There is a serious problem that the types of fibers
must be changed more frequently in order to solve this critical problem, resulting
in an increase in the time spent for such changing work.
Summary of the Invention
[0004] It is an object of the present invention to provide a clearer which does not require
the work of changing the position of a cloth guide when the roller gauges 15 between
the draft rollers 13 are changed.
[0005] A conventional cloth guide has a screw hole on the bottom thereof and is fixed to
a cloth plate with a screw. According to the present invention, such a configuration
is modified to have a slot instead of the screw hole.
Brief Description of the Drawings
[0006] Fig. 1 shows a cloth guide according to the present invention. (a) is a perspective
view of a cloth guide which has a slot and is secured to a cloth plate with a rivet
to be held so that it is slidable relative to the cloth plate. (b) is a sectional
side view of the said cloth guide.
[0007] Fig. 2 is a configuration diagram showing a cloth guide of a conventional clearer
for draft rollers.
Detailed Description of the Preferred Embodiment
[0008] Fig. 1(a) and Fig. 1(b) are diagrams showing an embodiment of a cloth guide for a
clearer according to the present invention. In the figures, 1 represents a cloth guide;
2 represents a slot provided on the cloth guide; and 3 represents a rivet whose head
diameter is larger than the width of the said slot and which is secured to a cloth
plate 5. Thus, the cloth guide 1 does not come off the rivet 3 and is held so that
it is slidable relative to the cloth plate. 4 represents a rib which is disposed for
maintaining a gap between the bottom of the cloth guide 1 and the cloth plate 5 so
that slide-resistance between the cloth guide and the cloth plate is reduced; the
cloth guide is slidable relative to the cloth plate; and the strength of the cloth
guide is maintained.
[0009] With the cloth guide 1 set on the cloth plate 5 in such a manner, when roller gauges
15 are changed, the force exerted upon the cloth guide 1 by clearer cloth 16 becomes
unbalanced, and the cloth guide 1 naturally automatically slides to a position at
which the force exerted upon the cloth guide 1 is balanced, i.e., a dynamic middle
point between the draft rollers. As a result, there is no need for the work of changing
the position of the cloth guide because the cloth guide automatically moves even if
there is a change in the roller gauges between the draft rollers.
[0010] The configuration as described above provides a significant advantage that there
is no need for the work of changing the position of the cloth guide if there is a
change in the roller gauges between the draft rollers.
[0011] Fig. 1 shows a specific embodiment. The the present invention is not limited to the
illustrated example and can be similarly implemented with partial changes in the structure
or design thereof in accordance with the teachings described above and later.
