JP2577853B2 - Material folding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an original fabric folding apparatus for continuously folding a flat cloth fourfold in order to manufacture a wiping cloth or a polished cloth product.

[0002]

2. Description of the Related Art Conventionally, as a wiping cloth or a polishing cloth product for cleaning a painted surface or the like, a product obtained by folding a raw material (base cloth) of a predetermined material into a quadruple is used. ing. To manufacture this product, for example,
As disclosed in Japanese Patent Application Laid-Open No. 698, an apparatus is known which continuously pulls out a base cloth from a raw roll and continuously folds the base cloth while transferring the base cloth to obtain a fourfold folded product. I have.

[0003]

In the above-mentioned apparatus, the L-shaped rods arranged in the width direction are successively folded while the base cloth continuously transferred is guided by a pair of guide bars. However, since the structure of the guide bar and the like of this device is complicated, and the guide means are provided fixedly, it is difficult to accurately set the folding position of the base cloth, There is a disadvantage that the folding accuracy of the product is poor.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional disadvantage, and has a simple structure.
It is an object of the present invention to provide a web folding apparatus capable of manufacturing a folded product with high product accuracy.

[0005]

SUMMARY OF THE INVENTION The present invention is directed to a tapered triangular tape roll which is folded at the center in the width direction by passing a base cloth from the raw roll and a base cloth from the raw roll. A first guide member made of a shaped tongue piece, and a divergent triangular tongue piece that is folded into two in a state in which both ends in the width direction are abutted at the center by passing a base cloth from the first guide member. A third guide member consisting of a tapered triangular tongue piece which is bent at its center in the width direction to be folded into four by passing a base cloth from the second guide member; The pulling roller pulls the base cloth from the third guide member.

A nip roller may be arranged between the first guide member and the second guide member, and a guide roller may be arranged between the second guide member and the third guide member. Further, a width direction position adjusting means for adjusting the position of the first guide member in the width direction of the base cloth may be provided.

[0007]

In the above construction, the base cloth from the raw roll is folded into two by passing through the first guide member, and then the both ends in the width direction of the base cloth are centered by passing through the second guide member. To form a folded two-fold base fabric. Then, the central portion of the two-folded base fabric is bent by passing through the third guide member, and the four-folded base fabric is pinched and pulled out by a pulling roller, thereby forming a four-folded base fabric that is accurately bent.

If the width direction adjusting means for adjusting the width direction position of the guide member is provided, the bending position of the central portion of the continuously transferred base cloth can be set more accurately.
When the center bending position of the base fabric is set accurately, the following bending operation is performed based on the center bending position, so that an accurate four-fold product can be obtained.

Further, when a nip roller is provided between the first guide member and the second guide member and a guide roller is provided between the second guide member and the third guide member, the above-mentioned bending action is performed more reliably.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 4, a support 13 protruding outward is provided at the lower portion of a gantry 10. . Further, a belt conveyor 2 is disposed from the vicinity of the material roll 1 upward.
Is constructed such that a pair of opposed endless belts 21 bridged between pulleys 20 at upper and lower ends abut against each other to transport a base cloth therebetween. The pulley 20 is configured such that both ends of the shaft are held at appropriate positions on the gantry 10, and that a rotational force is applied by a rotation driving unit (not shown).

A first guide member 3 formed of a downwardly tapering triangular tongue is provided on an upper portion of the gantry 10.
The support member 31 is fixed at an appropriate position on the gantry 10 by being supported and attached in an inclined posture by the support member 31.
The upper end of the first guide member 3 is attached to the gantry 10 so as to be movable in the lateral direction. A nip roller 4 for holding the base cloth from the first guide member 3 is rotatably held below the first guide member 3. Below the nip roller 4, a second guide member 5 formed of a triangular tongue tapered upward is supported and attached by a support member 51, and further below the second guide member 5
A pair of guide rollers 61 and 62 for folding the base cloth from above and transferring the base cloth downward are arranged in series in the transfer direction so as to transfer the base cloth horizontally.

Below the guide rollers 61 and 62,
A third guide member 7 composed of a downwardly tapering triangular tongue is mounted on the support member 71 while being supported in an inclined posture. Further, a pulling roller 8 for holding and pulling the base cloth from the third guide member 7 is disposed below the pulling roller 8, and the pulling roller 8 is configured to be driven and rotated by a driving motor (not shown).

As shown in FIG. 4, the upper end 72 of the third guide member 7 is bent in a U-shape so as to sandwich the rail member 10c, and is mounted so as to be movable along the rail member 10c. Have been. And this upper end 72
The third guide member 7 is fixed at a predetermined widthwise position by forming a long hole 74 through the long hole 74 and fastening the set screw 73 to the rail member 10c. Further, the base end of the support member 71 is attached to a rib 18 provided on the gantry 10. It is possible to follow by swinging.

As shown in FIG. 5, the upper end of the first guide member 3 is movably attached to the rail member 10a of the gantry 10. That is, the first guide member 3
The upper end portion 32 is bent in a U-shape so as to sandwich the rail member 10a, and a long hole 34 is formed in the upper end portion 32. A set screw 33 penetrates the long hole 34 to the rail member 10a. By being tightened, the first guide member 3 is fixed at a predetermined width direction position. A rib 35 is integrally provided on one side of the upper end 32, and a rib 15 is integrally provided on the rail member 10a.
The distal end of the screw shaft 16 held by being screwed into the shaft is rotatably held by the rib 35.
By rotating the head 17 of the screw shaft 16 by hand, the first guide member 3 can be moved along the rail member 10a. The support member 31
Is attached to a rib 19 provided on the gantry 10. In this state, the support member 31 swings about the base end when the first guide member 3 is slightly moved laterally. I am able to follow.

Next, the operation of this device will be described. First, the base cloth 11 is manually pulled out from the material roll 1 attached to the support base 13 and passed between the belt conveyors 2, and the first guide member 3, the nip roller 4, the second guide member 5, the guide rollers 61, 62, 3 guide member 7 and pulling roller 8
And the belt conveyor 2 and the tension roller 8 are driven in that state. As a result, the base fabric 11 is pulled out from the web roll 1 by the belt conveyor 2, and the base fabric 11 is folded in two at the center line 35 (see FIG. 2) by passing through the first guide member 3 and the nip roller 4. , A two-fold base fabric 11a as shown in FIG.
And is fed into the second guide member 5.

In the second guide member 5, as shown by the imaginary line in FIG. 6B, the center of both side portions of the two-fold base fabric 11a is pushed outward and the bent portion at the center is opened. Then, by passing through the guide rollers 61 and 62, a two-fold base cloth 11b is formed in which the both ends in the width direction of the base cloth are abutted at the center as shown by the solid line in FIG. 6C. . And this two-fold base fabric 1
1b is fed into the third guide member 7, the central portion is bent again, and is nipped and pulled out by the pulling roller 8, so that the four-fold base cloth 11c as shown in FIG.
Is formed. The four-fold base cloth 11c is cut into an appropriate length by another cutting device (not shown) to form a product.

In the above operation, it is necessary to accurately set the bending position (center line 35) of the central portion of the base cloth 11 which is continuously transferred, so that the screw shaft 16 as shown in FIG. By rotating the head 17 by hand, the first guide member 3 is moved along the rail member 10a so that the center position can be set accurately. When the center line 35 of the base cloth is accurately set, the following bending operation is performed based on the center line 35, so that an accurate four-fold product can be obtained.
In addition, the second and third guide members are also the first guide member 3.
Similarly, the adjustment in the width direction may be performed.
Further, the adjusting means at the center position may be adjusted automatically while detecting the folded state of the base cloth in combination with an appropriate detecting means.

In the above configuration, the base cloth 11 is bent at the center by the first guide member 3 and the nip roller 4 so as to be folded into two, and then the folded base cloth 11 a from the nip roller 4 is passed through the second guide member 5. A two-folded base fabric 11b is formed in which both edges are abutted at the center. In this way, in order to fold the flat base cloth 11 once at the center part and then to fold the flat base cloth 11 at the both ends at the center part, the flat base cloth 11 is formed of a triangular tongue piece having a simple configuration. The first guide member 3, the second guide member 5, and the nip roller 4 form a two-fold base cloth 11b in which both ends in the width direction of the base cloth are abutted at the center. Moreover, the position of the first guide member 3 in the width direction can be adjusted, so that the center position of the bending can be set accurately. If the center position can be accurately set, the both edges are bent with reference to the center position in the next step, so that the quadruple folding of the final product can be performed accurately.

Instead of providing the width adjusting means for the first guide member 3, an appropriate width adjusting means for accurately feeding the base cloth 11 into the first guide member 3 may be provided.

[0020]

As described above, according to the present invention, the base fabric from the material roll is folded into two pieces by passing through the first guide member, and then is folded into two pieces by passing through the second guide member. The two-fold base fabric is formed in a state where both widthwise end portions of the base material are butted at a center portion. And this 2
The central portion is bent by the trifold base cloth passing through the third guide member, and is pinched and pulled out by the tension roller, thereby forming a four-fold base cloth. In this way, the flat base cloth is once folded in two at the center part, and then the first base cloth is formed of a triangular tongue piece having a simple configuration in order to fold the flat base cloth into a shape in which both end edges are abutted at the center part. The guide member and the second guide member form a two-folded base fabric in a state where both ends in the width direction of the base fabric are abutted at the center. And if this center position can be set accurately,
In the next step, both ends are bent with reference to the center position, so that the four-fold folding of the final product can be performed accurately.

Further, when the width direction adjusting means for adjusting the width direction position of the guide member is provided, the bending position of the central portion of the continuously transferred base cloth can be set more accurately.

Further, when a nip roller is provided between the first guide member and the second guide member and a guide roller is provided between the second guide member and the third guide member, the above-mentioned bending action is performed more reliably.

[Brief description of the drawings]

FIG. 1 is an explanatory front view showing an embodiment of the present invention.

FIG. 2 is an explanatory right side view of FIG. 1;

FIG. 3 is a perspective view illustrating a first guide member.

FIG. 4 is an explanatory perspective view of a third guide member.

FIG. 5 is an explanatory perspective view of a position adjusting unit of the first guide member.

FIG. 6 is an explanatory perspective view of the base cloth, showing a process in which the base cloth is sequentially folded.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Raw material roll 2 Conveyor 3 1st guide member 4 Nip roller 5 2nd guide member 7 3rd guide member 8 Pulling roller 10 Device base 61, 62 Guide roller

Claims (3)

(57) [Claims] 1. A first guide comprising a raw roll support portion and a tapered triangular tongue piece which is folded at the center in the width direction by passing a base cloth from the raw roll so as to be folded in two. A second guide member comprising a flared triangular tongue which is folded into two in a state where both ends in the width direction of the base member are abutted at the center by passing the base cloth from the first guide member; A third guide member comprising a tapered triangular tongue piece which is bent at the center in the width direction to be folded into four by passing the base cloth from the second guide member, and a base from the third guide member. An original web folding apparatus comprising a tension roller for taking up a cloth. 2. A nip roller is disposed between the first guide member and the second guide member, and a nip roller is disposed between the first guide member and the second guide member.
2. The sheet folding apparatus according to claim 1, wherein a guide roller is disposed between the guide member and the guide member. 3. The sheet folding apparatus according to claim 1, further comprising a width direction adjusting means for adjusting the position of the first guide member in the width direction of the base cloth.