JPH11208987A - Cloth spreading machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a point of efficient start of work being impeded in a conventional cloth spreading machine due to requiring time to set and change cloth, and unwind cloth at all times constantly and stably without being influenced by the change of an outer diameter and weight of cloth is association with cloth unwinding while preventing unwound material from being wrinkled and damaged. SOLUTION: A pair of supporting arms 3, 3 for supporting a shaft B of roll cloth A are provided on a body 1 of a cloth spreading machine. Tilting arms 5, 5 are respectively fitted to base end side plates 4, 4 of the supporting arms 3, 3 so as to be rotatable around the lower ends. Cloth release rollers 6 connected to a motor 7 are rotatably supported by the lateral tilting arms 5, 5, and the cloth unwinding rollers 6 are pressed in the direction of coming in contact with the cloth A by springs 8 tightly stretched between the tilting arms 5 and the supporting arms 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling machine used for breaking a roll-shaped piece of material.

[0002]

2. Description of the Related Art Conventionally, as a reversing machine of this type, as shown in FIG. 4, a delivery roller 21 and an auxiliary roller 22 are provided in the vicinity of a main body 20 supporting a rolled fabric A. A forcibly pulling out the dough a by pinching the dough a pulled out from the A and rotating the delivery roller 21 as shown by an arrow, or as shown in FIG. A sensor 31 for detecting the slack of the cloth a pulled out from the cloth A is provided at an appropriate position of the cloth A, and the axis B of the cloth roll is driven by a motor or the like (not shown) based on a signal from the sensor 31 so as to always maintain a constant state. In some cases, the dough a is pulled out from the cloth A.

As another method for releasing a cloth C having no axis at the center, as shown in FIG. 6, a plurality of rollers 41 are arranged in an arc shape, and the cloth C is placed thereon. In some cases, as shown in FIG. 7, two belt-shaped belts 51 and 52 are arranged in a V-shape, and a cloth C is placed thereon.

[0006] The roller shown in FIG. 6 is placed on the roller 41 by rotating any of a plurality of rollers 41 arranged in an arc in the same direction synchronously. The cloth C is rotated in the unwinding direction, and the one shown in FIG. 7 is obtained by rotating two belts 51 and 52 arranged in a V shape in the same direction as shown by arrows. The cloth C placed on the belts 51 and 52
Are rotated in the same manner so that they are dissociated.

[0005]

Among the above-mentioned conventional reversing machines, the one shown in FIG. 4 first pulls out one end of the cloth from a roll-shaped cloth and sends it out between a feed roller and an auxiliary roller. It has to be passed through and set in a usable state, and this operation is troublesome, so that the disassembling operation cannot be performed immediately, and there is a problem that the cloth cannot be easily replaced. Further, the fabric is sandwiched between the feed roller and the auxiliary roller and is forcibly pulled out, so that there is a problem that the fabric is easily damaged.

The reversing machine shown in FIG. 5 rotates the axis of a cloth roll to break it apart, so that it does not have the above-mentioned problems. When the rotation speed is constant and the rotation speed is constant, there is a problem that the length of the material to be unraveled changes. From this, in order to move the spreader main body supporting the cloth roll to release the cloth, the length of the fabric pulled out from the roll is constant, that is, the peripheral speed is constant regardless of the change in the roll diameter. In addition, sensors had to be provided to control the rotation of the shaft. In addition, this type of reversing machine requires a large driving force to rotate the shaft and requires a large motor, and if the piece and the shaft are not firmly fixed, only the shaft rotates and functions normally. There was also a possibility that it would not be done.

Further, in the apparatus shown in FIGS. 6 and 7, since the cloth is placed on a roller or a belt, it is easy to set the cloth and the release speed is synchronized with the moving speed of the main body. This is easy, but the weight of the roll becomes lighter with the release, which causes a problem in that the frictional force between the supported rollers and the belt changes, and the feeding of the material becomes unstable. Was. Further, depending on the case, there is a fear that the winding of the cloth may be loosened, and in such a case, the cloth may be wrinkled or the unraveling may become more unstable.

[0008] It is an object of the present invention to solve the above-mentioned problems of the conventional reversing machine.

[0009]

Means for Solving the Problems In order to solve the above-mentioned problems, among the present invention, the invention according to claim 1 is characterized in that the main body of the reversing machine holding the rolled reciprocating material reciprocates on the reversing table. By moving, in the spreading machine in which the above-described cloth is sequentially released on the rolling base, the roll-shaped cloth is rotatably held between a pair of support arms, and one side of the cloth is ,
A reverse roller is urged in the direction of the cloth so as to be in contact with the outer peripheral surface of the cloth, and the reverse roller is driven in synchronization with the movement of the main body of the spreader to rotate the cloth in the direction in which the cloth is released. It was made.

The invention according to a second aspect is characterized in that the breaking roller in the configuration according to the first aspect of the invention is controlled so as to rotate at a peripheral speed equal to the moving speed of the main body.

According to a third aspect of the present invention, there is provided a roll-drawing machine having the configuration of the first aspect of the present invention, wherein a looseness of the cloth released by a sensor is detected by a sensor, and a release roller is provided based on a signal from the sensor. Is driven and controlled.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIG. 1 is a perspective view of a reversing machine according to the present invention.
As shown in the drawing, the reversing machine is arranged on the reversing base 2 so that the main body 1 of the reversing machine holding a roll-shaped piece A can reciprocate along the longitudinal direction of the horizontal rolling base 2. Have been.

The roll-shaped piece A is placed on a pair of left and right support arms 3 and 3 projecting from the main body 1 of the spreader, so that the shaft B penetrating the center of the piece A is placed on the roll B. It is designed to be set on the main body 1 of the machine.

As shown in the side view of the main part of FIG. 3, the support arm 3 is formed in a substantially Y-shape when viewed from the side. A pair of bearings 10a and 10a are provided so as to be movably supported.
b are arranged at intervals smaller than the diameter of the shaft B. In addition,
Although not shown, the support arm 3 on the other side also has
A pair of bearings is provided. Therefore, when the cloth A is lowered on the support arm 3, the shaft B moves to a position supported by the pair of bearings 10a and 10b by its own weight, and is automatically set to a predetermined position. Has become.

Here, in the reversing machine of the present invention, FIG.
In addition, as shown in FIG. 3, tilting arms 5, 5 are attached to the left and right plates 4, 4 to which the support arms 3, 3 are attached, respectively, so as to be rotatable around their lower ends. And these left and right tilt arms 5, 5
It is connected to a tip end side (upper side in the figure) by a releasing roller 6 rotatably mounted. In the middle of one of the tilt arms 5 (on the right side in FIG. 2), a motor 7 serving as a drive source of the unrolling roller 6 is mounted.
The shaft 7a is connected to the shaft 6a of the releasing roller 6 by engaging the chain 11 with the sprockets 7b and 6b fixed to the shaft 7a. In addition, the tilt arm 5
And a support arm 3, a spring 8 is stretched, and the spring 8 urges the release roller 6 in the direction of the cloth A.

Next, the operation of the reversing machine of the present invention having the above-mentioned configuration will be described. First, the roll-shaped cloth A set is made by hand if it is relatively light and heavy (from 100 to 300 kg). ) Lifts the cloth A using an appropriate means such as a lift or a crane,
Is moved down so as to be positioned on the support arm 3 and then lowered, whereby the cloth A is set rotatably by its axis B moving to a predetermined position of the support arm 3 by its own weight. You. At this time, the breaking roller 6 is located near the support arm 3, and the breaking roller 6 is provided so that the tilting arm 5 can move in the direction of coming and coming from the fabric A. Therefore, the set is not hindered by being pushed in contact with the outer peripheral surface of the cloth A and retreating.

When the motor 7 is energized with the cloth A set in this way, the rotational force of the shaft 7a of the motor 7 is transmitted through the sprocket 7b, the chain 11, and the sprocket 6b. , And the release roller 6 rotates in a predetermined direction (counterclockwise in FIG. 3). At this time, the breaking roller 6 is pulled by a spring 8 stretched between the tilting arm 5 and the support arm 3,
Since the cloth A is urged in the direction of the cloth A, the cloth A in contact with the unwinding roller 6 is driven to rotate in the opposite direction (clockwise in FIG. 3), and the cloth a wound in a roll shape with this rotation. Is pulled out downward as indicated by the arrow in FIG. 3 and its solution is made.

At this time, the main body 1 of the spreading machine supporting the cloth is moved from one side to the other (from right to left in FIG. 1) on the rolling base 2 and pulled out from the cloth A. The dough a is placed on the spreading table 2, and at the time when the dough a of a predetermined length is pulled out, the reversing machine main body 1 stops and is provided so as to be movable in a direction crossing the dough a. When the cutter 9 is operated, the cloth a is cut into a predetermined length. Thereafter, the main body 1 of the reversing machine returns to the original movement start position, and by repeating the above-described operation, the unraveled dough a of a predetermined length is sequentially stacked on the reversing base 2 so as to be stacked. It is something that goes. Note that when the main body 1 of the reversing machine returns to the original position, the releasing roller 6 stops, and the releasing is not performed. The rotation speed of the unrolling roller 6 at the time of unwinding is determined by the peripheral speed, that is, the length of the unraveled dough a,
It may be controlled by using an encoder or a servomotor (not shown) so as to be equal to the moving speed of the unrolled cloth a. Will be placed in the same position, and will be accurately and orderly stacked.

Further, the rotation control of the unwinding roller 6 is not necessarily limited to the above example. For example, a sensor (not shown) for detecting a slack of the unraveled cloth a at an appropriate position of the main body 1 of the spreading machine. ) Is provided, and based on a signal from this sensor, the motor 7 serving as a drive source of the unrolling roller 6 is turned on and off so that the cloth a always hangs down in the same state even when the reversing machine main body 1 moves. The cloth a may be unwound from the cloth A by a dimension corresponding to the moving distance of the main body 1. In this case, the unrolling roller 6 must be capable of rotating the contacted cloth A at a peripheral speed higher than the moving speed of the main body 1 of the spreading machine.

As described above, in the reversing machine according to the present invention, the unraveling is performed by rotating the unraveling roller 6 which is in contact with the outer peripheral surface of the cloth A. Even if the outer diameter and weight of the cloth A change, its resolving ability is constant and unaffected. Further, by rotating the unrolling roller 6 in the reverse direction at the time of exchanging the cloth A, the cloth a pulled out from the cloth A can be wound up as before.

In the above description, the spring 8 is used as a means for urging the release roller 6 in the direction of the cloth A. When the diameter of the cloth A is large (that is, when a force is required for its rotation), a strong urging force is applied. Although the example has been described in which the urging force is reduced as the diameter of the cloth A is reduced, the urging means is not necessarily limited to such a spring 8. For example, an air cylinder (not shown) ) May be used so that the breaking roller 6 is always in contact with the cloth A at a constant pressure.

[0023]

As described above, of the present invention, in the first aspect of the present invention, the release is performed by driving the release roller provided so as to be in contact with the outer peripheral surface of the cloth. Therefore, even if the outer diameter and weight of the cloth change with the breaking, the breaking ability is constant and unaffected.
Therefore, the drive control is easy. Further, since the structure is simple and the feeding of the dough is smooth, the operation is reliable and there is no fear that the dough is damaged or wrinkled. Further, by rotating the unrolling roller in the reverse direction, the drawn out fabric can be wound up, and many excellent effects can be achieved in that the cloth can be easily replaced.

According to a second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the rotation of the unwinding roller is controlled so that the peripheral speed thereof becomes equal to the moving speed of the main body of the spreading machine. Without dislocating the dislodged fabric,
There is an effect that it can always be placed at the same position on the reversing stand and can be stacked neatly.

According to a third aspect of the present invention, there is provided an effect of the first aspect of the present invention, by detecting looseness of the unraveled cloth by a sensor and controlling the driving of the laminating roller based on a signal from the sensor. There is an effect that it is possible to realize a reversing machine that achieves the above at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view of a reversing machine according to an embodiment of the present invention.

FIG. 2 is an enlarged front view of a main part of the spreading machine shown in FIG.

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a simplified side view showing an example of a conventional spreading machine.

FIG. 5 is a simplified side view showing a second example of the conventional spreading machine.

FIG. 6 is a simplified side view showing a third example of a conventional spreading machine.

FIG. 7 is a simplified side view showing a fourth example of a conventional spreading machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reversing machine main body 2 Reversing base 3 Support arm 4 Plate 5 Tilting arm 6 Release roller 7 Motor 8 Spring 9 Cutter 10a, 10b Bearing 11 Chain A Fabric B Shaft of fabric a Material pulled out from fabric

Claims (3)

[Claims] 1. A reversing machine in which a reversing machine main body holding a rolled reciprocating material reciprocates on the reciprocating base to sequentially release the reciprocating material on the reversing base. The piece-shaped cloth is rotatably held between a pair of support arms, and on one side of the cloth, a solution-releasing roller is provided so as to be in contact with the outer peripheral surface of the piece and is urged in the direction of the cloth. A roll-feeding machine characterized in that the rollers are driven in synchronization with the movement of the main body of the roll-feeding machine, whereby the rolls are rotated in a direction in which the piece is released. 2. The spreading machine according to claim 1, wherein the breaking roller is controlled to rotate at a peripheral speed equal to the moving speed of the spreading base body. 3. The loosening roller is driven and controlled based on a signal from the sensor, wherein the loosening of the loosened cloth is detected by a sensor.
The described reversing machine.