JPH04108159A - Crease-smoothing apparatus of cloth spreading machine - Google Patents

Abstract

PURPOSE:To prevent the formation of irregular side edge in the folding and lamination of a cloth by separating a pair of divided lateral members according to the rotation of the member while laterally stretching the cloth wound on the members to effectively correct the crease existing in the cloth. CONSTITUTION:Ball bearings 7 are attached to both ends of a rotary shaft 5 placed in crossed state at the cloth-delivering part of a cloth spreading machine 1. The inner ring 71 of the bearing is made to be freely swivelable and unable to rotate. A plurality of lateral members 8 (8a, 8b) separated at the middle parts are extended in circular form between the outer rings 73 of the bearings to obtain a crease-smoothing apparatus A. In the course of delivering a cloth 101 via the lateral members 8 to a cloth-spreading table 2, a shaft 91 is rotated to swivel and displace the inner ring 71 around a supporting pin 63 with pushing tools 96,97 to displace the bearings 7 in V form. The divided lateral members 8a and 8b are separated from each other according to the rotation of each lateral member 8 in the direction of the arrow Y and the cloth 101 wound on the members 8 is stretched in lateral direction.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a wrinkle smoothing device for smoothing out wrinkles such as slack occurring in a fabric unrolled from a roll-shaped original fabric while the fabric is being fed out. .

[Prior Art] Spreading using a spreading machine includes the step of unwinding a fabric from a roll-shaped original fabric and spreading it on a spreading table. When such stretching is performed, the fabric may be pushed inward in the width direction for some reason, resulting in wrinkles such as slack.

[Problem to be Solved by the Invention 1] If fabrics having such wrinkles are stacked and rolled as they are, a problem arises in that the edges of the rolled fabrics tend to be uneven.

The present invention has been made in view of the above-mentioned problems, and it ensures that the wrinkles that occur in the fabric placed on a predetermined path of the fabric spreading machine are removed before the fabric is spread on the spreading table. It is an object of the present invention to provide a device for smoothing out wrinkles of fabric in a fabric spreading machine, which can eliminate wrinkles.

[Means for Solving the Problems 1] The wrinkle-removal device for a cloth spreading machine according to the present invention has an annular inner ring around both ends of a rotating shaft that is swingable and rotatable around its diametrical axis. each set up in an impossible manner,
An annular outer ring is provided on the outside of the inner ring so as to be rotatable relative to the inner ring and is integral with the inner ring, and a plurality of oblong members arranged in a circular shape are arranged between the outer rings at both ends of the rotating shaft. The horizontally extending members are separated in the middle, and a cloth is wrapped around the horizontally extending members, and one place in the circumferential direction of the inner ring at both ends of the rotating shaft is connected to the inner ring. It is equipped with means for swinging around the axis and displacing it inwardly or outwardly along the longitudinal direction of the rotating shaft.

[Function] In this configuration, when the above-mentioned means sets the swinging posture of the inner rings at both ends of the rotating shaft so that the front end of each of the inner rings is located outside the rear end of each inner ring, for example. As the outer ring rotates, the horizontally long member approaches the front end from the rear end of its rotation path, and the two separated horizontally long members gradually move away from each other.Conversely, as the outer ring rotates, the horizontally long member As the rotation path approaches the rear end from the front end, the two separated horizontally long members gradually approach each other. Therefore, when a cloth wrapped around a plurality of horizontally long members is sent from the rear end to the front end of the rotation trajectory as the horizontally long members rotate,
When the two separated oblong members gradually move away from each other, the frictional resistance causes them to expand outward in the width direction.

[Example] FIG. 1 is a schematic side view of a spreading machine equipped with a wrinkle smoothing device A according to an example of the present invention.

The spreading machine main body 1 is mounted on a trolley 3 that can move back and forth along the spreading table 2. In addition to the wrinkle smoothing device, the spreading machine main body 1 is provided with a pair of feed rolls 1111 for supporting the roll-shaped original fabric 100, a fabric guide roll 12, an unraveling roll 13, an auxiliary roll 14, etc. Original fabric 1
A cloth 101 fed out from a cloth 101 is spread on a cloth spreading table 2 through a predetermined path as shown in the figure.

The wrinkle smoothing device will be explained with reference to FIGS. 2 to 4.

Reference numeral 5 denotes a rotating shaft, and one end side of the rotating shaft 5 is rotatably supported by a side frame 15 of the main body l of the spreading machine via a bearing 16. This rotating shaft 5 is connected to the unraveling roll 1 shown in FIG.
3 through a gear mechanism, and are connected to a common rotational drive source (not shown).

Reference numeral 6 denotes a mounting member having a boss portion 61, which is fixed to the side frame 15 and rotatably supports the rotary shaft 5 by a bearing 62 provided at its center. Support pins 63 and 63 are protruded from two locations displaced by 180 degrees on the boss portion 61 of the mounting member 6.
363 supports the ring 64 at two locations displaced by 180 degrees concentrically with the rotating shaft 5. And this ring 64
An annular inner ring 71 is fitted into the inner ring 71, and an annular outer ring 73 is provided concentrically and integrally with the inner ring 71 on the outside of the inner ring 71 via a number of poles 72. These inner ring 71, balls 72, and outer ring 73 form the ball bearing 7.
is formed. With the above configuration, the inner ring 71 has the support pin 6
The inner ring 71 formed by the inner ring 71 is pivotable around the diametrical axis of the inner ring 71, and is not rotatable because it is connected to the boss portion 61 of the mounting member 6 via the support pin 63. Further, a ring 74 is fitted to the outer ring 73, and one end of a flexible band-shaped connector 81 is connected via a port 82 to a plurality of equally spaced locations on the ring 74.

The other end side of the rotating shaft 5 has a similar configuration. Therefore, the same parts are given the same reference numerals. Note that the support pins 63, 63 are parallel to each other on one end side and the other end side of the rotating shaft 5, so that the inner ring 7L at both ends of the rotating shaft 5
71 is swingable around parallel axes.

8 is a horizontally elongated member. A plurality of horizontally long members 8 are arranged in parallel in a circular shape, and the ends of each horizontally long member 8 are connected to the outer rings 73, 73 at both ends of the rotating shaft 50 via rings 74. 81.81. The horizontally long member 8 is divided at its longitudinal center into a left horizontally long member 8a and a right horizontally long member 8b, and the divided ends are connected to each other by a tension spring 82.
connected by. In addition, each horizontally long member 8a on the left and right
, 8b are provided with guide tips 83 at appropriate locations. On the other hand, a disc-shaped support member 84 is fixed at a proper position on the rotating shaft 5, and the corresponding guide rods 83 follow grooves 85 formed at equal intervals on the outer circumference of the support member 84. has been done.

Reference numeral 9 denotes means (referred to as medical displacement means) for swinging and displacing the ball bearing 7 around the support bottle 63. This displacement means 9 has threaded portions 92 and 93 whose winding directions are opposite to each other at both ends of a rotary drive shaft 91 that is interlocked and connected to a rotary drive source H such as a motor. A push tool 96.97 for pressing the inner ring 71 of the ball bearing 7 is provided on a nut body 94.95 screwed into the nut body 94.95.

With the above configuration, when the pushers 96 and 97 of the displacement means 9 are not pressing the inner ring 71 of the ball bearing 7, the tensile forces of the plurality of springs 82 are balanced, so that both ends of the rotating shaft 50 The ball bearings 7.7 remain parallel as shown by solid lines in FIG. Therefore, when the horizontally long members 8 rotate together with the rotating shaft 5, each horizontally long member 8 rotates without moving left or right.

On the other hand, the rotary drive shaft 91 is rotated by a rotary drive source,
By moving the nut body 94.95 in the direction of the arrows X and X in FIG. If the ball bearings 7.7 at both ends of the rotating shaft 5 form a convex shape in plan view as shown by the imaginary lines in the figure, when the oblong member 8 rotates together with the rotating shaft 5, the respective ball bearings 7. As the horizontally long member 8 approaches the front end from the rear end of its rotation locus as indicated by the arrow Y, the two separated horizontally long members 8a and 8b gradually move away from each other.

On the contrary, due to the rotation of the horizontally long members 8, the two horizontally long members 8 are separated as each horizontally long member 8 approaches from the front end to the rear end of its rotation locus as shown by the arrow Z.
A and 8b are gradually approaching.

Therefore, the interval α at the front end of the rotation locus is wider than the interval β at the rear end of the two horizontally long members 8a and 8b, and the interval is from the front end to the rear end. The horizontal movement of the horizontally long members 8a and 8b at this time is caused by the guide rod 8.
3 is made to follow the groove 85 of the support member 84, so this can be done easily.

FIG. 5 shows a state in which the fabric 101 is wound around the wrinkle smoothing device A. In this state, the cloth 101
is sent like an arrow mark, and the cloth 1 at that time
If the front part in the feeding direction of 01 is set at the front end of the horizontally long member 8, and the rear part in the feeding direction is set at the rear end of the horizontally long member 8, the cloth 101 will not move as the horizontally long member 8 rotates. Accordingly, when the rotation trajectory is sent from the rear end to the front end, the two separated horizontally long members 8a, 8b gradually move away, so that the cloth 101 is moved by the frictional resistance between the horizontally long members 8a, 8b and the cloth 101 at that time. is expanded outward in the width direction, and the wrinkles that had appeared on the fabric 101 disappear.

Two separated horizontally long members 8a and 8b when the horizontally long member 8 rotates from the rear end to the front end of the rotation trajectory
The lateral movement speed of the pole ring 7 increases as the inclination angle of the pole ring 7 increases. Therefore, by appropriately adjusting the inclination angle of the ball hair ring 7 according to the type of cloth 101 and the way the wrinkles are twisted, it is possible to achieve the best wrinkle smoothing effect. Note that the inclination angle of the ball hair ring 7 can be adjusted steplessly by controlling the rotation angle (rotation speed) and rotation direction of the rotary drive shaft 91.

Incidentally, in this embodiment, an auxiliary roll 14 is provided for the purpose of assisting the wrinkle smoothing device angle described above. This auxiliary roll 14 is the fabric 10 that has passed through the wrinkle smoothing device A.
As schematically shown in FIG. 5, the hair flocking group 14b, 14c extends spirally around the rotating shaft 14a. The helical direction of 14c is opposite.

According to this auxiliary roll 14, by rotating it in the direction of arrow H, the fabric 101 is paid out outward in the width direction by the action of the flocked groups 14b and 14c, so that the fabric 101 disappears in the fabric 101 that has passed through the wrinkle smoothing device A. Even if there are any unruly wrinkles, they will completely disappear.

The fabric 101 from which the wrinkles have been removed by the action of the wrinkle smoothing device A and the auxiliary roll 14 is stretched onto the fabric spreading table 2 for a predetermined length. As a result of experiments, it has been found that even in thin fabrics that tend to wrinkle easily, the wrinkles can be almost completely eliminated by the action of the wrinkle smoothing device.

[Effects of the Invention] The wrinkle-smoothing device for the fabric in the fabric spreading machine according to the present invention reduces the frictional resistance between the two separated oblong members and the fabric wrapped around them when the two separated oblong members gradually move away from each other as they rotate. Since this method spreads the fabric outward in the width direction, it has the effect of effectively eliminating wrinkles that occur in the fabric, and prevents irregularities in the edges of the stacked fabrics. Become.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of a spreading machine equipped with a wrinkle smoothing device according to an embodiment of the present invention, FIG. 2 is a horizontal cross-sectional view showing the wrinkle smoothing device separated, and FIG. 3 is a vertical cross-sectional view of the same. , FIG. 4 is a sectional view taken along line I'L'-IV in FIG. 2, and FIG. 5 is a schematic perspective view of the wrinkle smoothing device in use. A... Wrinkle smoothing device, 5... Rotating shaft, 8.8a, 8
b...Horizontal member, 9...Displacement means, 63...Support pin, 71...Inner ring, 73...Outer ring, 101...
Cloth. Patent applicant NCA Co., Ltd. Agent Patent attorney Takashi Suzue

Claims (1)

[Claims] 1. An annular inner ring is provided around both ends of the rotating shaft so as to be able to swing freely and non-rotatably around the axis in the diametric direction, and an annular outer ring is provided outside the inner ring so as to be able to rotate freely relative to the inner ring. and provided integrally with the inner ring, each of a plurality of horizontally long members arranged in a circular shape is horizontally suspended between the outer rings at both ends of the rotating shaft, and the horizontally long members are separated at an intermediate portion. At the same time, the fabric is wound around these horizontally elongated members, and furthermore, one place in the circumferential direction of the inner ring at both ends of the rotating shaft is swung around the axis line, so that the inner ring along the longitudinal direction of the rotating shaft is rotated. Or, a wrinkle smoothing device for a fabric in a fabric spreading machine, characterized in that it is equipped with a means for displacing outward.