JP2966192B2 - Method and apparatus for winding woven fabric around cross roll - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for winding a woven fabric around a cross roll which is placed in parallel with a pair of front and rear rollers provided on a loom and rotated in one direction by at least one roller. Regarding the device.

[0002]

2. Description of the Related Art A cloth (woven cloth) woven by a loom has an end portion passed between a front roller of a pair of front and rear rollers and a cross roll on the pair of rollers. Along the peripheral surface of the cross roll toward the rear roller, successively pass between the rear roller and the cross roll, and further pass between the front roller and the cross roller, It is wound around a cross roll (JP-A-3-14656).

[0003]

By the way, during the continuation of weaving, the end of the woven cloth passing between the front roller and the cross roll receives the rotational force of the cross roll and follows the circumferential surface thereof. To reach between the rear roller and the cross roll. The arrival of the end of the woven fabric between the rear roller and the cross roll also depends on the movement of the cross roll under the rotational force. However, the moving destination of the end portion of the woven fabric that receives the rotational force of the cross roll is not always between the roller and the cross roll. I was sick. The purpose of the present invention is
An object of the present invention is to ensure that the end of the woven fabric is inserted between each roller and the cross roll placed on the roller.

[0004]

Means for Solving the Problems, Functions and Effects of the Invention
The present invention relates to a front roller of a pair of front and rear rollers provided on a loom, and a cross roll placed in parallel with the pair of rollers and rotated in one direction by at least one roller. A method of winding a woven fabric having an end extending toward the rear roller with a peripheral surface of the cross roll toward a rear roller, while maintaining rotation of the cross roll in the one direction. A gap is generated only between the rear roller and the cross roll. According to the present invention, by moving the cross roll along the circumferential surface of the rotating cross roll by providing a gap only between the rear roller and the cross roll while maintaining the rotation of the cross roll in the one direction. The receiving space at the end of the woven fabric can be enlarged, thereby ensuring that the end of the woven fabric reaches and passes between the rear roller and the cross roll. be able to. If you guide the end of the woven fabric to the gap,
The end of the woven fabric between the rear roller and the cross roll can more reliably pass.

[0005] The present invention also relates to a method for winding an end portion of a woven fabric passed between a rear roller and a cross roll around the cross roll, so that the rotation of the cross roll in the one direction is maintained. A gap is formed only between the roller and the cross roll. According to the present invention, by providing a gap only between the front roller and the cross roll while maintaining the rotation of the cross roll in the one direction, the end of the woven fabric can be received as described above. The space can be enlarged, thereby ensuring that the ends of the woven fabric reach between and pass through the front rollers and the cross roll.

The present invention according to an apparatus for winding a woven cloth around a cross roll is provided so as to be arranged in parallel with a pair of rollers and supported by the loom so that a height position thereof can be changed, and to be pushed up obliquely upward by the cross roll. It is characterized by having a push-up roller for exerting a force. According to the present invention, when the push-up roller is moved to the upper position, and thereby the cross-roll is pushed obliquely upward, the cross-roll is separated from one of the rollers, and a gap is generated between the roller and the cross-roller. Can be. Thereby, it is possible to easily and reliably insert the end portion of the woven fabric between the cross roll and the one roller.

A pair of arms swingably supported by the loom and spaced apart from each other; a plate or rear supported by the pair of arms and insertable between a rear roller and the cross roll; An air conduit having a plurality of nozzles for ejecting air between the roller and the cross roll, or a guide member including the plate and the air conduit disposed above the plate. Is desirable. According to this, the pair of arms are swung to insert the plate between the rear roller and the cross roll, or to blow air from the nozzle, or to insert the plate and the air. , The end portion of the woven fabric surrounding the cross roll can be guided to the gap.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a pair of front and rear rollers 12, 14 provided on a loom 10 and these rollers 12, 1 are provided.
4 shows a cross roll 16 placed in parallel with the roller. The cross roll 16 is pushed up for the purpose described below.

The pair of rollers 12 and 14 are rotatably supported by a pair of opposite frames 18 arranged at the front of the loom 10. The rear roller 12 is driven and rotated by driving means (not shown) such as a motor. In the illustrated example, the sprocket 2 is attached to one end of each of the rollers 12 and 14.
0,22 and an endless chain 24 is hung on both sprockets. From this, in the illustrated example, both rollers 12, 14 are driven in the directions of the arrows, respectively.
Rotated. Preferably, the number of teeth of the rear sprocket 20 is set to be smaller than the number of teeth of the front sprocket 22 so that the rear roller 12 rotates at a slightly higher peripheral speed than the front roller 14.

When the pair of rollers 12, 14 is rotated in the direction of the arrow, the cross roll 16 is rotated in one direction (the direction of the arrow) by receiving the rotational force of both rollers. The rotating cross roll 16 winds up the cloth (woven cloth) 26 woven by the loom 10. The magnitude of the peripheral speed of the rollers 12, 14 is set to a value several percent higher than the traveling speed of the woven fabric 26 by weaving so that the woven fabric 26 is wound under high tension.
The woven fabric 26 circulates around a pair of other rollers 28 and 30 which are disposed below and to the left of the rollers 12 and 14 and both ends of which are fixed to the frames 18 in the drawing. The end 32 is on the peripheral surface of the cross roll 16.

The end 3 of the woven cloth on the peripheral surface of the cross roll 16
2 is a friction force generated between the cross roll 16 and
It moves around the axis of the cross roll 16 with the rotation of the cross roll 16 toward the rear roller 12. A gap 34 is created between the roller 12 and the cross roller 16 during movement of the fabric end 32, preferably before the end 32 abuts the rear roller 12. As a result, the receiving space of the end 32 of the woven fabric defined by the rear roller 12 and the cross roll 16 is enlarged as compared with before the gap 34 is formed. Therefore, the end 32 of the woven fabric can easily and reliably advance between the roller 12 and the cross roll 16. Since the cross roll 16 is pressed by the front roller 14 via the woven fabric 26, the rotation is maintained during this time.

As means for forming the gap 34, a push-up roller 35 is provided. Push-up roller 3
5 is a pair of rollers 12, 14 below the cross roll 16.
And is rotatably supported by the loom 10 via a pair of L-shaped levers 36. Each lever 36 is pivotally connected to each frame 18 at its bent portion, supports one end of the push-up roller 35 at one end, and is pivotally connected to one end of an air cylinder 38 at the other end. . The other end of the air cylinder 38 is pivotally attached to a receiving table 40 that is transferred from above the pair of rollers 12 and 14 when the cross roll 16 has wound up a predetermined amount of the woven fabric 26.

By the expansion and contraction operation of the air cylinder 38, the push-up roller 35 swings via the lever 36, and the height position changes. In the illustrated example, the push-up roller 35
Is set to the left side of the vertical plane including the axis of the cross roll 16, so that when the push-up roller 35 is swung clockwise, the cross roll 16 Pushed up. As a result, a gap 34 is formed between the roller and the rear roller 12. The push-up operation of the cross roll 16 is performed when the cross roll 16 is
The rotation of the cross roll 16 in the one direction is maintained because the cross roll 16 is generated in a state in which the cross roll 16 is in contact with the cloth roll 26 via the woven fabric 26. Therefore, the woven fabric 26 always receives a feeding force from the cross roll 16 along the peripheral surface. The push-up roller 35 is swung counterclockwise after the end 32 of the woven fabric passes between the rear roller 12 and the cross roll 16. As a result, the cross roll 16 contacts the rear roller 12 again.

As shown in FIG. 2, the push-up roller 35 has a plurality of large-diameter portions 42 and a plurality of small-diameter portions 44 provided alternately in the axial direction thereof. It is desirable to dispose a guide plate 46 having a downwardly convex arc-shaped cross section provided with a rectangular hole 48 that allows a part of the large diameter portion 42 of the push-up roller 35 to protrude. The guide plate 46 has two levers 36 at both ends.
At one end. The guide plate 46 guides the end of the woven fabric 26 that has passed between the rear roller 12 and the cross roll 16 toward the front roller 14 along the peripheral surface of the cross roll 16.

FIG. 3 shows an example of the push-up roller 35 applied when only the rear roller 12 is driven and rotated. In this example, the motor 52 is attached to the one end of the lever 36.
The bevel gear 5 is engaged with one end of the cross roll 16 and the output shaft of the motor 52 extending toward the end of the one end of the lever 36.
4,56 are installed. According to this, by operating the motor 52, the push-up roller 35 can be rotated around its axis, and the cross roll 16 in contact with the push-up roller 35 can be rotated at a required speed around its axis. it can. In the illustrated example, a guide plate 46 supported by a lever 36 extends between the push-up roller 35 and the front roller 14 in the axial direction of the roller.

Referring again to FIG. 1, at the lower portion of both frames 18 of the loom 10 and near the rear rollers 12,
A pair of opposing arms 58 has one end (lower end) thereof.
, Is swingably supported about an axis parallel to the axis of the rear roller 12. The arm 58 can be swung by using, for example, an air cylinder (not shown).

The pair of arms 58 support the air conduit 60 at their other ends (upper ends). The air conduit 60 has a plurality of nozzles 62 spaced longitudinally thereof. While the arm 58 is pivoted at an appropriate angle and maintained, the roller 12 and the cross roller 1
The length of the arm 58, the direction of the nozzle 62, and the like are determined so that air can be jetted toward the gap 34 between the arm 6 and the arm. The end 3 of the woven fabric 26 hanging from the peripheral surface of the cross roll 16 due to the injection of the air into the gap 34.
2 can be brought close to the peripheral surface of the cross roll, and can be guided to the gap 34.

In place of the air conduit 60 having the nozzle 62, a plate 64 can be used as shown in FIG. The plate 64 has a pair of arms 5 at both ends.
8 supported. The plate 64 can be inserted into the gap 34 formed between the rear roller 12 and the cross roll 16 when swinging the arm 58 by a predetermined angle.
When the plate 64 is inserted into the gap 34, the end of the woven fabric 26 hanging from the peripheral surface of the cross roll 16 is
It is led to. As in the example shown, the air conduit 6 has a plate 64 and a plurality of nozzles 62 above the plate.
0 can be provided. According to this, the plate 64
Is moved out of the gap 34, the gap 3
4 can be blown out of the air,
The end 32 of the woven fabric can be prevented from being pulled out of the gap 34 together with the plate 64.

After passing through the guide plate 46, the end 32 of the woven fabric 26 reaches between the front roller 14 and the cross roll 16, and is held between the cross roll 16 and a part of the woven fabric following the cross roll 16. . To easily and reliably reach the end 32 of the woven fabric between the front roller 14 and the cross roll 16, a gap 34 between the rear roller and the cross roll 16 is provided.
Is eliminated, the cross roll 16 is pushed up to the upper left, and a gap (not shown) is generated between the front roller 14 and the cross roll 16.

In order to form a gap between the front roller 14 and the cross roll 16, for example, a pair of similar levers (not shown) are further provided between a pair of levers 36 as shown in FIG. Both levers support a push-up roller (not shown) similar to the push-up roller 35. In this case,
The installation of the guide plate 46 is omitted. The swing range of the axis of the push-up roller is set to the right side of the vertical plane including the axis of the cross roll 16, so that when the push-up roller is swung clockwise, the cross roll 16 is tilted to the left. It is pushed up. As a result, the front roller 1
4, the cross roll 16 is in contact with the rear roller 12 via the woven fabric 26, and the rotation in the one direction is maintained.

Referring to FIG. 1, when the woven fabric 26 is wound on the peripheral surface of the cross roll 16 and reaches a predetermined winding amount (this is indicated by an imaginary line 26), the transfer device ( By the operation of the not-shown), the cross roll 26 is moved and placed on the front receiving table 40 while rolling the front roller 14 and the guide plate 66 provided at the forefront end of the loom 10. After the transfer, the rotary cutter 68 provided on the receiving table 40 is moved in the axial direction of the cross roll 26, and
6 is cut. On the other hand, prior to cutting the woven fabric 26, a new cross roll is placed on the pair of rollers 12, 14 via an appropriate device.

In order to make the cut end of the woven fabric 26 follow the peripheral surface of the rotating cross roll 16, the cross roll 16
There is provided an air conduit 70 having a plurality of nozzles 70 for ejecting air toward. 4, the guide plate 46 is supported by a pair of arms 74 fixed to both ends of the roller 30. Therefore, in this example, the guide plate 46 does not move with the push-up roller 35,
When the push-up roller 35 is swung, its large diameter portion 42
Part enters and exits the hole 48 of the guide plate 46.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view of a woven fabric winding device according to the present invention.

FIG. 2 is a partial bottom view of a push-up roller and a guide plate.

FIG. 3 is a schematic longitudinal sectional view of another example of a push-up roller.

FIG. 4 is a schematic longitudinal sectional view of a winding device having a plate inserted into a gap.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 loom 12, 14 pair of rollers 16 cross roll 26, 32 woven cloth and its end 34 gap 35 push-up roller 58 arm 60, 62 air conduit and nozzle 64 plate

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) D03D 49/20 B65H 18/20 B65H 19/28

Claims (7)

(57) [Claims] 1. A roller passes between a front roller of a pair of front and rear rollers provided on a loom and a cross roll mounted on the pair of rollers and rotated in one direction by at least one of the rollers. A method of winding a woven cloth having an end extending toward a rear roller with a peripheral surface of the cross roll around the cross roll, wherein the rear roller is rotated while maintaining rotation of the cross roll in the one direction. A method for winding a woven fabric around a cross roll, wherein a gap is formed only between the cloth roll and the cloth roll. 2. The method according to claim 1, wherein an end of the woven fabric is introduced into the gap. 3. Passing between a forward roller of a pair of front and rear rollers provided on the loom and a cross roll mounted on the pair of rollers and rotated in one direction by at least one roller, A method of winding a woven fabric having an end extending toward the front roller through a space between a rear roller and the cross roll, extending along a peripheral surface of the cross roll, A method of winding a woven fabric around a cross roll, wherein a gap is formed only between the front roller and the cross roll while maintaining the rotation of the cross roll in the one direction. 4. A pair of front and rear rollers provided on the loom, wherein a cross roll around which the woven fabric is wound is mounted on the pair of rollers, and a pair of rollers rotated in one direction by at least one of the rollers; An apparatus for winding a woven fabric around a cross roll, comprising: a push-up roller arranged in parallel with a pair of rollers and supported by the loom so as to be able to change its height position, and exerting a diagonally upward push-up force on the cross roll. 5. A pair of arms supported swingably on the loom and spaced apart from each other, supported by the pair of arms, and insertable between a rear roller and the cross roll. 5. The apparatus of claim 4, including a guide member comprising a plate. 6. A pair of arms that are swingably supported by the loom and are spaced apart from each other, and air that is supported by the pair of arms and is directed between a rear roller and the cross roll. 5. The apparatus according to claim 4, including a guide member comprising an air conduit having a plurality of nozzles for ejecting the air. 7. An air having a plurality of nozzles disposed above the plate and supported by the pair of arms for ejecting air between the rear roller and the cross roll. The device of claim 5, comprising a conduit.