JP2926159B2 - Bi-fold method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-fold extending method in which a cloth unreeled from a raw web is stretched in a state of being folded in two along a line extending in the unwinding direction.

[0002]

2. Description of the Related Art Conventionally, when performing such a two-fold extension, it is necessary to perform a cloth folding operation before performing the extension operation. This cloth folding operation is performed by unwinding the web from the web and forming the first piece on one side in the width direction and the second piece on the other side in the width direction.
The cloth piece divided into two pieces is folded in half and the first piece piece and the second piece piece are folded in an overlapping manner, and the thus folded piece is rolled or folded in a meandering manner. It is the task of using it as a raw material. Therefore, in the conventional two-fold spreading, the raw material obtained through the above-mentioned cloth folding operation is mounted on a reversing machine, and the revolving material fed from the raw material is fed out onto the reversing stand with a reversing machine. It was going to be folded in two.

[0003]

Conventionally, however, it has been necessary to perform a cloth folding operation prior to performing the two-folding operation by the reversing machine, so that the cloth folding operation becomes extra. There is a problem that it takes time and effort.

[0004] Further, in the raw material obtained through the cloth folding operation, the cloth is folded in two. Therefore, if the raw material is roll-wound, the roll diameter is the same. It is about twice as large as a roll of unfolded cloth. Similarly,
When the raw material obtained through the cloth folding operation is folded in a meandering shape, its bulk is 2 times smaller than that of a non-folded cloth having the same length folded in a meandering shape. It is about twice as bulky. For this reason, in the above-mentioned conventional two-fold rolling, the raw material obtained by rolling a non-folded material is rolled due to restrictions due to the roll diameter and bulk of the raw material that can be mounted on the spreading machine. There is a problem that the length of a piece of material that can be subjected to one-time folding and extending is inevitably reduced to about １ ／ compared to the case where the sheet is mounted on a reversing machine and folded in two.

The present invention has been made in view of the above-mentioned problems, and a roll of unfolded cloth is folded or folded in a meandering shape. It is an object of the present invention to provide a method capable of performing folding and spreading.

[0006]

It folded the spreading method according to the present invention SUMMARY OF] The trolley Toko reciprocatingly travels back and forth on the spreading table
The original fabric support part mounted on the trolley and the trolley mounted on the trolley
Move the above bogie of a reversing machine equipped with a cloth folding device back and forth.
Is the web supported by the web support while returning
The cloth that has been fed forward from the
Fold in half along the path using the cloth folding device
And the two-fold spreading method that unfolds on the above-mentioned spreading table
In addition, the cloth wrapping member provided in the cloth folding apparatus
It is wrapped around the provided horizontal part and guided forward.
On the first piece on one side in the width direction of the cloth
Extends the second piece on the other side in the width direction in the direction in which the cloth is fed out
After folding over the line and folding the cloth in half, the folded cloth is fed out from the above-mentioned reversing machine onto the reversing base.

[0007] According to the present invention, the web mounted on the web spreading machine may be a web obtained by rolling a non-folded web or folding it in a meandering shape. There is no need to perform the above-described cloth folding work beforehand. In addition, the length of the cloth unwound from the raw material can be about twice as long as that of the conventional case. In other words, the length of the cloth that can be processed by one folding operation becomes twice as long as the conventional one.

[0008] In the present invention, a preferred folding method for folding a piece of cloth in two becomes apparent from the embodiment described below.

In the present invention, the material may be a material obtained by rolling a material, or the material may be a material obtained by folding the material in a meandering shape.

[0010] In the present invention, it is preferable that the cloth folded in half is fed between the pair of upper and lower rolls on the spreading base in the cloth feeding path of the spreading machine.

In this way, the folded state of the cloth folded in two on the cloth feeding path on the reversing machine is as follows:
It is easy to keep it even after it has been fed out and folded in two.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic side view of a reversing machine used in the two-folding method of the present invention, FIG. 2 is a front view of a cloth folding apparatus A, and FIGS. 3 and 4 show a cloth folding method. FIG. 5A is a schematic perspective view for explanation, and FIG.
5 (b) is a schematic cross-sectional view illustrating an intermediate stage of the cloth folding method.

FIG. 1 is a cross-section drawing method according to an embodiment.
Cloth 100 unwound from the web S mounted on the reversing machine
Is folded in two in a cloth feeding path on the spreading machine by a cloth folding apparatus A at a line extending in the feeding direction of the cloth 100, and then the folded cloth 100 is placed on the From the table to the gantry 1.

As shown in FIG. 1, the reversing machine is a
A trolley 2 reciprocating back and forth on the trolley, an original fabric support unit 3 mounted on the trolley 2, a cloth folding apparatus A mounted on the trolley 2, and a cutter unit 4 mounted on the front of the trolley 2. And so on.

The material support 3 has a function of supporting the material S and feeding out the cloth 100 from the material S.
In the illustrated example, the material support unit 3 includes a plurality of roller groups 31 that support the material S formed by rolling the material 100 into a roll.
A feed roller 32, a guide roller 33, and the like for applying a feed force to the cloth 100 fed out of the apparatus are provided.

The cloth folding apparatus A is configured such that the cloth 100 unwound from the raw material S is separated by a line extending in the unwinding direction of the cloth 100, in other words, the width of the cloth 100 in the width direction.
It has the function of folding in two at the location. The cloth folded in two by the cloth folding apparatus A is fed out onto the extension base 1 with a pair of upper and lower rolls 51 and 52 attached to the front end thereof.

The folding in two is carried out by reciprocating the carriage 2 back and forth while feeding the folded two-pieces 100 fed through the pair of rolls 51 and 52 onto the rolling base 1. In the forward movement limit or the backward movement limit of the carriage 2, the cutter unit 4 is driven as necessary to
00 is disconnected.

According to such a two-folding and stretching method, the raw fabric S mounted on the reversing machine may be a roll of a non-folded piece 100, so that the two-folding and stretching may be performed. There is no need to carry out the cloth folding work described at the beginning, and the length of the cloth unwound from the raw cloth S can be about twice as long as in the conventional case. The length of the cloth that can be processed by folding in two is about twice as long as the conventional one. This is because, if the roll S of the unfolded cloth 100 is the same as that of the roll of the folded cloth, the length is folded in half. This is due to the fact that it is about twice as large as the roll of rolled cloth.

Next, the structure and operation of the cloth folding apparatus A will be described.

As shown in FIG. 2, a cloth folding apparatus A
Is a horizontal portion 61 composed of a rod installed horizontally (horizontal parallel to the width direction of the web in FIG. 1), and an inclined portion 62 composed of a rod extending outward from one end of the horizontal portion 61 in a forwardly downward shape. The horizontal part 61 and the inclined part 62
And a rod-shaped member pivotally connected to the lower end of the horizontal portion 61 at the front lower position at the other end side of the horizontal portion 61. And a member 8. The inclination angle θ1 of the inclined portion 62 with respect to the horizontal portion 61 is 45 degrees. The cloth winding member 6 is attached to the left and right machine frames 53, 54, and the shape retaining member 8 has a base, not shown, which is attached to the machine frames 53, 54. It is attached to a rotating shaft 81 of a drivable electric motor.

The folded member 7 has a long body member 72 pin-connected to the connecting portion a by the pin 71 in a state where the rear end portion is overlapped on the inclined portion 62;
It has a double link structure including a bending member 73 pin-connected to the front end of the main body member 72, and a fixture 75 is attached to the front end of the bending member 73 via a pin 74. I have. The mounting fixture 75 is fixed to a belt 76 stretched horizontally using the machine frames 53 and 54. The belt 76 can reciprocate by the forward / reverse drive of the electric motor M1. The cloth folding member 7 has a standby position along the inclined portion 62 and the inclined position, with the pin 71 provided at a connection point A between the horizontal portion 61 and the inclined portion 62 of the cloth winding member 6 as a fulcrum. A position symmetrical to 62 (specifically, a position where the inclination angle θ2 with respect to the horizontal portion 61 becomes 45 degrees and the inclination angle with respect to the inclination portion 62 becomes 90 degrees)
Can be swung to and from the operating position. In FIG. 2, the cloth folding member 7 located at the standby position is shown by a solid line.
The cloth folding member 7 located in the operating position is indicated by a two-dot chain line . And, since the rear end of the body folding member 7 is overlapped with the rear end portion of the main body member 72 on the inclined portion 62 as described above and is pin-connected, when the fabric folding member 7 is located at the standby position. , As can be seen in FIG.
A recess 77 is provided at a position adjacent to the cloth folding member 7 on the operation position side. In addition, the swing of the cloth folding member 7 from the standby position to the operating position and the swing from the operating position to the standby position (arrow D) are performed by the electric motor M1 and the belt 7 reciprocated by the driving of the electric motor M1.
6 is effected by the action of the reciprocating swing mechanism constituted by.

The shape-retaining member 8 is located between a first position in a falling posture shown by a two-dot chain line in FIG. 2 and a second position in a standing posture shown by a solid line in FIG. And the rotating shaft 8 of the electric motor
In the first position, the tip 82 is located at a lower front position of a continuous portion of the horizontal portion 61 and the inclined portion 62 at the first position. The swing of the shape retaining member 8 between the first position and the second position is performed by the action of the reciprocating mechanism constituted by the electric motor.

As shown in FIG. 2, the cloth folding apparatus A is provided with an automatic loading mechanism for winding the cloth 100 around the cloth folding apparatus A. The automatic loading mechanism includes a horizontal shaft 93 rotatably supported by bearings 91 and 92 attached to the machine frames 53 and 54, an electric motor M2 capable of driving the horizontal shaft 93 forward and reverse, and a horizontal shaft 93. Shaft 93 and machine frame 5
Chains 96, 9 which are disposed between the wheels 95, 95 attached to the upper end portions of the wheels 3, 54 and which are capable of running forward and reverse.
6 and a horizontal roll 98 attached to the chain 96 via attachments 97, 97.
By driving the horizontal roll 98
May move along the lower surfaces of the machine frames 53 and 54 to the upper ends thereof, and may further move from the upper ends to the lower ends along the upper surfaces of the machine frames 53 and 54 and may move in the opposite direction. I can do it.

When performing two-folding, the first step of setting the cloth 100 in the cloth folding apparatus A is performed as follows. After the web S is supported by the web support 3 mounted on the carriage 2 and the unfolded fabric 100 unwound from the web S is hung on the horizontal roll 98 of the automatic loading mechanism, the motor M2 Is driven to move the horizontal roll 98 along the lower surface of the machine frames 53 and 54 to the upper end thereof, and further from the upper end to the lower end along the upper surfaces of the machine frames 53 and 54. After this loading, the horizontal roll 98 is returned to the lower end of the back surface of the machine frames 53, 54. When this loading is performed, as can be inferred from FIG. 1, the cloth 100 unwound from the raw fabric S is wound around the horizontal roll 98 and disposed along the lower surfaces of the machine frames 53 and 54, and the cloth 100 Is wound around the horizontal portion 61 of the cloth member 6 from the lower side to the upper side, and is disposed obliquely forward from the upper side. At the same time, as shown in FIG. 3, the cloth 100 is also arranged on the inclined portion 62 of the cloth winding member 6 and the cloth turning member 7 located at the standby position. A hanging portion 101 is formed on the cloth 100 between the feed roller 32 and the guide roller 33.

The cloth 100 set in the cloth folding apparatus A is assumed to have two sections. As shown in FIG. 3, one section corresponds to the first piece portion 110 on one side in the width direction of the cloth 100. The second section 120 on the other side in the width direction of the cloth 100 corresponds to the other section. In this embodiment, the width W1 of the first piece 110 and the second piece 1 shown in FIG.
20 and the width W2 are set to be the same. In FIG. 4, the full width of the cloth 100 is indicated by a symbol W. Then, the cloth 100 set in the cloth folding apparatus A has its first piece 1.
10 is wound around the horizontal portion 61 from the lower side to the upper side and guided forward from the upper side, while the second piece 120 is positioned at the inclined portion 62 and the standby position. The portion of the second piece 120, which is disposed on the piece-turning member 7, is a recess 77 as shown in FIG. Hanging down to the bottom.

The cloth 10 set in the cloth folding apparatus A
0 is folded in two by the action of the cloth folding device A. When folding the cloth 100 set in the cloth folding apparatus A into two,
The folded member 7 positioned at the standby position shown in FIG. 5A continuously passes through the intermediate stage shown in FIG.
To the operating position shown in FIG. When the cloth folding member 7 swings from the standby position to the operating position in this way, at the start of the swing, the cloth folding member 7 hooks the second piece 120 of the cloth 100 hanging in the recess 77, and 5 (b), the width direction a of the piece 100
To pull. Thereby, the second piece 120 of the cloth 100 is wound around the inclined portion 62 from the lower side to the upper side. Then, when the cloth folding member 7 reaches the operating position, as shown in FIG. 4, the second piece 120 of the cloth 100 is guided from above the inclined portion 62 toward one side in the width direction of the cloth 100, and at the same time, The second piece 120 is opposite
The object folding member 7 is wound from the upper side to the lower side to be folded, and the folded second member
The piece 120 is folded on the first piece 110 which is guided forward from the horizontal part 61, whereby the cloth 100 is folded in two in the cloth feeding path on the reversing machine.

Therefore, the first piece 110 guided forward from the horizontal portion 61 and the second piece 1 folded back by the piece folding member 7 and overlapping the first piece 110.
20 is pulled forward as indicated by arrow F in FIG.
The first piece 110 guided forward from the horizontal part 61 is drawn forward as indicated by an arrow F1.
20 is a piece 100 by the inclined portion 62 as indicated by an arrow H1.
After turning in the width direction, the cloth is turned by the cloth folding member 7 as indicated by an arrow H2, and is forwardly folded in two along with the first piece 110 that is drawn forward from the horizontal portion 61. Drawn out. The drawing of the cloth 100 folded in two is performed by the pair of rolls 51 and 52 shown in FIG. 1, and the cloth 100 drawn out from the pair of rolls 51 and 52 while being folded in two. Is spread on the spreading table 1 as it is. When the first piece 110 and the second piece 120 folded on the first piece 110 are pulled forward as indicated by an arrow F in FIG. On the back side, the vehicle is moved rearward along the machine frames 53 and 54 as indicated by the arrow R.

Prior to unfolding the cloth 100 folded in two on the spreading table 1, the shape retaining member 8 is moved from the second position to the first as shown by a broken line in FIG. When it is swung to the position and disposed between the first piece 110 and the second piece 120 folded on the first piece 110, the tip 82 of the shape retaining member 8 is brought into contact with the second piece 120 and the second piece 120. As it slides against the bent portion 130 at the boundary with the one piece portion 110,
The situation that the position of the bent portion 130 is displaced in the width direction of the piece 100 is less likely to occur, and the spreading on the spreading table 1 is performed in an orderly manner.

In the above description, the reversing member 7 and the shape-retaining member 8 are rocked by the reciprocating rocking mechanism and the reciprocating mechanism described above. You may make it rock. The setting of the cloth 100 in the cloth folding apparatus A may be performed manually by an operator without using the automatic loading mechanism described above.

Further, the piece-turning member 7 can be fixed at the above-mentioned standby position without making it swingable. In this case, the first piece 110 of the piece 100 is attached The operator may manually perform the operation of winding around the horizontal portion 61 and guiding the same, and the operation of winding and guiding the second piece 120 of the piece 100 around the inclined portion 62 and the piece folding member 7. The shape retaining member 8 can also be fixed at the above-described first position without making it swingable. In this case, the first piece 110 and the second piece 120 The operator may set the cloth 100 by hand so that the tip end portion 82 of the shape retaining member 8 abuts on the bent portion 130.

In the above-described embodiment, the first cloth 100
Although the piece 110 and the second piece 120 have the same width and the cloth 100 is folded to half the width by the cloth folding apparatus A, the cloth folding apparatus A has the cloth 10
By making the width of the first piece 110 and the second piece 120 different from each other, the cloth 100 can be folded in two at any position in the width direction. In addition, it is also possible to use a material that is not folded in two and folded in a meandering shape as the material. Further, in the present invention, a device other than the cloth-cloth folding apparatus A shown in the drawing is used to fold the apparatus in two along a line extending in the drawing-out direction of the cloth in the cloth-feeding path on the reversing machine. Is also possible.

[0032]

According to the present invention, it is possible to mount a raw material formed by rolling a non-folded cloth or folding it in a meandering shape on a reversing machine to perform two-fold rolling. Not only does it eliminate the need for labor-intensive and costly folding work before folding, but also doubles the length of fabric that can be used for one folding operation. The outstanding effect that it can be extended is achieved.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a reversing machine used in a two-fold rewinding method of the present invention.

FIG. 2 is a front view of the cloth folding apparatus.

FIG. 3 is a schematic perspective view for explanation at an initial stage showing a cloth folding method.

FIG. 4 is a schematic perspective view for explanation at a final stage showing a cloth folding method.

5 (a) is a schematic cross-sectional view for explanation showing a method of folding a piece of cloth, taken along a line corresponding to line VV in FIG. 3;
(B) is an explanatory schematic sectional view showing an intermediate stage of the cloth folding method.

[Explanation of symbols]

 S Raw web 1 Roll base 51,52 Roll 100 Cloth

Claims (1)

(57) [Claims] 1. A bogie that reciprocates back and forth on a reciprocating base.
And the original fabric support part mounted on this trolley and the
Front and rear of the above-mentioned bogie of a reversing machine equipped with a folded cloth folding device
The material supported by the material support while moving back and forth
The piece of material that has been fed forward from the
Fold in half with the cloth folding device
Folding and folding method that folds and unfolds on the above-mentioned gantry
Oite, fabric winding unit which is provided in the fabric folding device
Wrapped around the horizontal part provided in the material and guided forward
The piece is placed on the first piece on one side in the width direction of the piece
Extend the second piece on the other side in the width direction of the product in the
A two-fold spreading method in which the folded cloth is folded in two at the boundary of the line, and then the folded cloth is fed out from the above-described reversing machine onto a rolling base.