JP2002088642A - Pleating method, pleating device and pleated fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pleating method by which pleats having different heights can be formed on a fabric in an optional distribution style, while the plating processing is performed by a pleating machine method. SOLUTION: In a state that a fabric is carried, a connection link 42 is reciprocated by the rotation of a driving shaft 34 to reciprocate a pleat-forming lever 43 on a shaft 45. While pleat-forming tines 10 attached to the end portion of the lever 43 is reciprocated, a hydraulic cylinder 50 is driven to operate a plunger 51, thereby changing the position of a connection shaft 47 in a long connection hole 48 in a desired direction only at a desired distance. Thereby, the reciprocation angle of the pleat-forming lever 43 is changed to change the stroke S of the pleat-forming tines 10. Consequently, the heights of the pleats formed with the pleat-forming tines 10 can be changed during the operation of the pleating device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pleating method, a pleating apparatus, and a pleated cloth, and more particularly to a pleating processing in which mountain folds and valley folds are alternately formed like crystal pleats. The present invention relates to an improvement for enabling folds having different heights to be formed on a piece of cloth in an arbitrary distribution manner.

[0002]

2. Description of the Related Art As a method of performing pleating, there are a pleating machine method, a patterning method, a method by hand processing, and the like. These methods are properly used depending on the material to be pleated, the form of the pleat to be obtained, and the like. However, when pleating is performed on a factory scale, the pleating machine method is frequently used.

[0003] When a pleating process for alternately forming a mountain fold and a valley fold, such as a crystal pleat, is to be performed by a pleating machine method, typically, the pleating process has the following configuration. A device is used.

[0004] That is, the pleating apparatus first has a transport roller for transporting the cloth to be pleated at a relatively low speed. The peripheral surface of the transport roller is a work surface for arranging the cloth, and the cloth is transported along the peripheral surface by the rotation of the transport roller. The transport roller also has a built-in heater, and also serves as a heating unit for heating the cloth.

[0005] The pleating apparatus has a pressing member which urges the cloth so as to sandwich the cloth with the peripheral surface of the transport roller and approaches the peripheral surface. The pressing member includes, for example, a plurality of strips having a spring property, and these strips are arranged in a state of being juxtaposed in the axial direction of the transport roller while each covering a predetermined angular range of the peripheral surface of the transport roller. .

The pleating device acts on the cloth so as to form a plurality of folds on the cloth while reciprocating at a speed higher than the peripheral speed of the conveying roller and in the conveying direction of the cloth.
A fold forming claw is provided. The cloth on which the plurality of folds are formed by the fold forming claw is moved in accordance with the rotation of the transfer roller in a state of being sandwiched between the peripheral surface of the transfer roller and the pressing member. At this time, the plurality of folds formed on the cloth are sandwiched between the peripheral surface of the transport roller and the pressing member,
The form is maintained, and the form is set by heating from the transport roller.

[0007] In this way, a fabric pleated to form a plurality of folds is obtained.

[0008]

In the above-described pleat processing apparatus, when the pleat form to be obtained, more specifically, when the height of the mountain fold is to be changed, the stroke of the reciprocating motion of the fold forming claw is changed. You can change it. Normally, the pleating apparatus is provided with an adjustment mechanism that enables such a stroke to be changed. Therefore, by operating the adjustment mechanism, the height of the pleats can be changed, and pleats having variously changed heights can be obtained.

However, the stroke changing operation as described above is performed only when the pleating apparatus is stopped, and is only performed for so-called setup change. Therefore, even if the pleating apparatus is provided with the adjustment mechanism that can change the stroke as described above, it is impossible to form folds having different heights on one piece of cloth.

The pleating device is stopped during the pleating of one piece of cloth, and in this stopped state, an operation for changing the stroke of the fold forming claw is performed. If the method of operating the processing device is adopted, it seems that folds having different heights can be formed on one piece of cloth, but if this method is employed, the productivity of the pleating process is reduced. In addition to inviting, you will encounter the following serious flaws:

That is, while the folded cloth is being conveyed by the conveying roller while being conveyed by the conveying roller, the pleating apparatus is stopped to change the stroke. At times, the heating time exerted on the cloth is increased by the amount of the stop time. As a result, areas of different heating times are provided in one piece of cloth with respect to the cloth feeding direction. In general,
The peripheral speed of the transport roller is set so as to optimize the heating time for the folded cloth. Therefore, as described above, if the heating time for the cloth is longer than the set optimum value, the cloth may undesirably shrink to a predetermined value or more, or may be scorched in extreme cases. Also,
In one piece of cloth, "unevenness" such as a difference in texture due to a difference in heating time is caused.

[0012] As described above, as described above, in the direction orthogonal to the direction in which the folds extend, the regions where the height of the mountain folds are relatively high and the regions where the height of the mountain folds are relatively low are distributed. To get a pleated cloth,
With the pleating apparatus as described above, it is practically impossible.

Changing the peripheral speed of the transport roller halfway can be considered as a means for changing the height of the folds. In this case, however, a difference in the heating time is caused for one piece of cloth. Not preferred.

Therefore, an object of the present invention is to form folds having different heights without causing a difference in heating time as described above.
Provided is a pleating method and a pleating apparatus that can be formed in an arbitrary distribution mode on a piece of cloth, and an attempt is made to provide a pleated cloth obtained by such a pleating method. It is.

[0015]

SUMMARY OF THE INVENTION According to the present invention, a cloth to be pleated is sandwiched between a predetermined work surface and a pressing member which is urged to approach the work surface. A plurality of folds are formed on the cloth by applying a fold forming claw that reciprocates in the direction of conveying the cloth at a speed higher than the conveying speed of the cloth while performing the conveying step and the conveying step. And a step of heating the pleated cloth in a state sandwiched between the work surface and the pressing member, which is firstly directed to a pleating method and solves the technical problem described above. Therefore, the method further includes a step of changing the stroke of the reciprocating motion of the fold forming claw while performing the transporting step and the fold forming step as described above.

[0016] The present invention also provides a conveying means having a peripheral surface serving as a work surface for arranging a cloth to be pleated, and conveying the cloth along the peripheral surface by moving the peripheral surface. The pressing member, which is in a state where the cloth is sandwiched between the peripheral surface and the urging member so as to approach the peripheral surface, forms a plurality of folds on the cloth. A fold forming claw that acts on the cloth while repeatedly reciprocating in the direction of transport of the cloth at high speed, and a heating unit that heats the fold-formed cloth in a state sandwiched between the peripheral surface and the pressing member. In order to solve the technical problems as described above, the pleating apparatus further includes a stroke changing means for changing a reciprocating stroke of the fold forming claw. The changing means is that the peripheral surface moves and folds While the use nail is reciprocated, and characterized in that it is possible to change the stroke of the reciprocating movement of the claw for plication.

In the pleating apparatus according to the present invention, the conveying means preferably includes a rotating conveying roller.

In a preferred embodiment of the pleating device, the fold forming claw is attached to an end of a fold forming lever that is driven to reciprocate, and the stroke changing means includes a fold forming lever. Means for changing the reciprocating angle of reciprocation.

In the preferred embodiment described above, the fold forming lever is configured to reciprocate by connecting a connecting link that reciprocates according to the rotation of the drive shaft, for example, and the stroke changing means includes a connecting link. Includes means for changing the position at which it is connected to the plication lever.

The means for changing the position at which the connecting link is connected to the fold forming lever preferably comprises a hydraulic actuator, for example a hydraulic cylinder.

Further, in the pleating apparatus according to the present invention, it is preferable that the transport means has a built-in heater so as to also serve as a heating means.

The present invention is also directed to a pleated cloth obtained by the pleating method as described above. The pleated fabric alternately forms a plurality of folds and a plurality of valleys, and with respect to the direction in which the folds extend, the height of each fold is uniform, but in the direction in which the folds extend. With respect to the orthogonal direction, there are distributed regions where the height of the fold is relatively high and regions where the height is relatively low.

[0023]

FIG. 1 is a side view schematically showing an entire pleating apparatus 1 according to an embodiment of the present invention.

Referring to FIG. 1, a cloth 2 to be pleated is pulled out from a cloth roll 3 as shown by an arrow 4, passes through guides 5 and 6, and has a peripheral surface 8 of a conveying roller 7.
Supplied above. The transport roller 7 is rotated at a relatively low speed in the direction of arrow 9, and with this rotation, the cloth 2 is transported along the peripheral surface 8.

While the cloth 2 is being conveyed along the peripheral surface 8 of the conveying roller 7, the fold forming claw 10 acts on the cloth 2, thereby forming a plurality of folds on the cloth 2. Transport roller 7
Has a built-in heater (not shown). By heating from the heater, the folds formed on the cloth 2 are set while the cloth 2 is conveyed along the peripheral surface 8 of the conveying roller 7. , A pleated cloth 2, ie, a pleated cloth 2a. The pleated cloth 2a is collected on the tray 11 after being separated from the transport roller 7.

When the folds are formed on the cloth 2 by applying the fold forming claws 10 to the cloth 2, the weakness of the waist of the cloth 2 is compensated for, and the cloth 2 is damaged by the fold forming claws 10. In general, the cloth 2 is handled in a state of being sandwiched between the upper paper 12 and the lower paper 13 in order to prevent the above problem. The upper paper 12 is pulled out from the upper paper roll 14 in the direction of arrow 15 and overlaps the cloth 2 on the guide 6, while the lower paper 13 is pulled out of the lower paper roll 16 in the direction of arrow 17 and Is overlaid on the cloth 2.

Therefore, what is pleated on the peripheral surface 8 of the conveying roller 7 is not only the cloth 2 but also a laminated body including the upper paper 12 and the lower paper 13.
In the case where it is not necessary to specifically explain the existence of the base paper 13, such a laminate will be simply expressed as the cloth 2 or the pleated cloth 2 a.

As described above, the cloth 2 on which the folds are formed by the fold forming claws 10 must maintain its form until the folds are set by heating. Therefore, a pressing member 19 for sandwiching the cloth 2 between the peripheral surface 8 of the transport roller 7 and the peripheral surface 8 is disposed along the peripheral surface 8. The pressing member 19 is urged to approach the peripheral surface 8. Details of the pressing member 19 are shown in FIG.

FIG. 2 is a perspective view showing a part of the conveying roller 7 and a part of the pressing member 19 arranged on the peripheral surface 8 thereof.

The pressing member 19 is constituted by a plurality of strips 20 made of, for example, steel and having a spring property. These strips 20 are arranged in parallel in the axial direction of the transport roller 7 while covering a predetermined angle range of the peripheral surface 8 of the transport roller 7.

One end of each strip 20 is guided by a tension guide 21 located relatively above the conveying roller 7 to a fixing bar 22 serving as a fixing portion of the pleating apparatus 1 via a tension spring 23. Connected. The same applies to the other end of each belt-like body 20, which is connected to a fixed bar 25 via a tension spring 26 while being guided by a tension guide 24 located relatively below the transport roller 7.

In this way, each belt 20 is urged to approach the peripheral surface 8 with the cloth 2 sandwiched between the peripheral surface 8 of the conveying roller 7.

As shown in FIG. 2, a plurality of, for example, three long holes 27 are provided in each strip 20 in parallel.
FIG. 3 is an enlarged view of the portion provided with the long holes 27.

Referring to FIG. 3, the above-mentioned fold forming claw 10 is formed.
Has a comb-like shape, and its tip is located in each of the long holes 27 and in the gap between the adjacent strips 20. The fold forming claw 10 is held by the claw holding member 28, and reciprocatingly moves at a speed higher than the peripheral speed of the conveying roller 7 and repeatedly in the conveying direction indicated by the arrow 9 of the cloth 2 according to the operation given to the claw holding member 28. Acts on cloth 2. The stroke S of the reciprocating operation of the fold forming claw 10 is shown in FIG.

Among the plurality of folds formed on the cloth 2 by the action of the fold forming claw 10, a mountain fold 29 is shown in FIG. The principle of forming such folds will be described with reference to FIG.

FIG. 4 shows one long hole 27 provided in a specific band-shaped body 20 provided in the pressing member 19 and the conveyance roller 7.
FIG. 2 is a cross-sectional view schematically showing a part of FIG. In FIG. 4, the cloth 2 sandwiched between the peripheral surface 8 of the conveying roller 7 and the belt 20
2 shows a state in which mountain folds 29 and valley folds 30 are alternately formed.

In order to form such folds 29 and 30, first, as shown in FIG. 4 (1), the tip of the fold forming claw 10 is brought into contact with the cloth 2 relatively upstream of the slot 27. Brought into contact. In this state, the fold forming claw 10
Is moved in the direction indicated by the arrow 31 at a speed higher than the peripheral speed at which the peripheral surface 8 of the transport roller 7 moves in the direction of the arrow 9.

As a result of the above-described movement of the fold forming member 10, the cloth 2 located upstream of the portion where the tip of the fold forming member 10 comes into contact is sent along with the fold forming claw 10. At this time,
As shown in FIG. 4 (2), in the cloth 2 located downstream from the tip of the fold forming claw 10, the belt-shaped body 20 and the transport roller 7 are provided.
Of the fold forming claw 1
The cloth 2 sent along with the first fold 29 enters the lower part of the last fold 29 while being bent.
And one valley 30 are formed.

Next, the fold forming claw 10 attempts to return to the original position as shown by the arrow 32. At this time, the posture of the tip of the fold forming claw 10 is controlled so as to be away from the cloth 2 and the peripheral surface 8 as shown in FIG. 4 (3), so that the cloth 2 is not attracted. You.

Subsequently, the fold forming claw 10 is moved so that its tip traces a locus as shown by an arrow 33, and FIG.
The state is returned to the state shown in (1).

As described above, each time the operation for realizing the states shown in FIGS. 1 (1), (2) and (3) is repeated, one mountain fold 29 and one valley fold 30 are formed. It is formed. And thus, the mountain fold 29 and the valley fold 3
The cloth on which 0 is formed is sent in the direction of arrow 9 according to the rotation of the transport roller 7.

As described above, the belt-shaped body 20 is provided with the long hole 27, and the fold forming claw 10 is configured to reciprocate in the long hole 27. The fold 29 and the valley fold 30 can be maintained in a state of being sandwiched between the strip 20 and the peripheral surface 8 of the transport roller 7 immediately after the formation. Therefore, these mountain folds 2
It can be set by heating from the transport roller 7 without breaking the form of the ridges 9 and the folds 30.

In such a pleating apparatus 1,
The amount of movement of the fold forming claw 10 in the direction of the arrow 31, ie, FIG.
By changing the stroke S shown in FIG.
Height, or conversely, the depth of the valley 30 can be changed. It should be noted that in this embodiment, such a stroke S can be changed while the transport roller 7 is rotating and the fold forming claw 10 is reciprocating.

FIG. 5 is a schematic front view showing a drive shaft 34 for giving a desired operation to the fold forming claw 10.

Each end of the drive shaft 34 is rotatably supported by side plates 35 and 36 provided on each side of the pleating apparatus 1. The drive shaft 34 is rotated in a predetermined direction by a power source (not shown).

FIG. 5 also shows the fold forming claw 10 described above.
Are shown in the figure. The claw holding member 28 is disposed below the drive shaft 34 so as to extend in parallel with the drive shaft 34.

As shown schematically in FIG. 5, a reciprocating motion for giving a reciprocating motion as shown by arrows 31 to 33 to the fold forming claw 10 with the stroke S described above in relation to the drive shaft 34. An operation mechanism 37 and an attitude control mechanism 38 for controlling the attitude of the fold forming claw 10 so that the tip thereof draws a trajectory as indicated by arrows 31 to 33 are provided. Each of the reciprocating mechanism 37 and the attitude control mechanism 38 is operated using the rotation of the drive shaft 34 as a drive source, as described later with reference to FIGS. Further, in this embodiment, two reciprocating mechanisms 37 are arranged near each end of the drive shaft 34, and two attitude control mechanisms 38 are arranged in the middle of the drive shaft 34.

Details of the reciprocating mechanism 37 are shown in FIG. FIG. 6 is a side view showing the reciprocating mechanism 37.

FIG. 6 shows the drive shaft 34 and the claw holding member 28 shown in FIG. The drive shaft 34 rotates in the direction of arrow 39, and an eccentric inner ring 40 is mounted around the drive shaft 34. This eccentric inner ring 4
Around 0, the eccentric outer ring 41 is fitted so as to allow rotation with the eccentric inner ring 40. Eccentric outer ring 41
Is provided at one end of the connection link 42. In this manner, the rotational motion of the drive shaft 34 is converted into an eccentric motion by the eccentric inner ring 40 and the eccentric outer ring 41, and as a result, a reciprocating motion is given to the connecting link 42.

As described above, another mechanism such as a well-known crank mechanism or cam mechanism may be used as a mechanism for converting the rotation of the drive shaft 34 into a reciprocating operation of the connecting link 42.

On the other hand, the fold forming claw 10 is
Is attached to the lower end of the fold forming lever 43. Regarding this attachment, the claw holding member 28 is rotatably attached to the fold forming lever 43 via the shaft 44 so as to enable the posture control of the fold forming claw 10 to be described later. The posture of the nail 10 can be changed.

The fold forming lever 43 is held so as to reciprocate around a shaft 45. The shaft 45 is supported, for example, on each of the side plates 35 and 36 shown in FIG.

The fold forming lever 43 is connected to the end of the connecting link 42 at a position above the shaft 45. Thereby, the reciprocating operation of the connecting link 42 is transmitted to the fold forming lever 43, and the fold forming lever 43
As shown by the arrow 46, it reciprocates.

The details of the connecting structure between the connecting link 42 and the fold forming lever 43 will be described in detail. A connecting shaft 47 is provided at an end of the connecting link 42, and the fold forming lever 43 is , A connection slot 48 for receiving the connection shaft 47 is provided. The connection slot 48 extends in an arc shape centered on the drive shaft 34, and the connection shaft 4
7 is large enough to allow movement. Therefore, the position of the connection shaft 47 can be changed in the connection long hole 48.

As described above, by changing the position of the connecting shaft 47, the distance D between the connecting shaft 47 and the shaft 45 is changed.
3 is changed. This change in the reciprocating rotation angle of the fold forming lever 43 causes a change in the stroke S of the fold forming claw 10, thereby changing the height of the mountain fold 29 formed on the cloth 2 described above.

Such a change in the position of the connecting shaft 47 was also possible in the conventional pleating apparatus, but in the conventional case, the entire pleating apparatus including the drive shaft 34 must be stopped. However, the position of the connecting shaft 47 cannot be changed. More specifically, while the pleating apparatus is stopped, the operator adjusts the position of the connection shaft 47 by, for example, loosening or tightening bolts while using an appropriate tool.

On the other hand, in this embodiment, the position of the connecting shaft 47 can be changed while the pleating apparatus 1 is maintained in the operating state.

More specifically, a fluid pressure cylinder 50 is attached to the upper end of the fold forming lever 43 via a fixing pin 49. Plunger 51 of fluid pressure cylinder 50
Is attached to the end of the connection link 42 via the connection pin 52. The fluid pressure cylinder 50 is preferably a double-acting fluid cylinder that can be controlled so that the stroke of the plunger 51 can be changed. The piping (not shown) for supplying the pressure fluid to the fluid pressure cylinder 50 is provided in such a manner as not to hinder the reciprocating rotation of the fold forming lever 43.

Therefore, when the pleating apparatus 1 is in operation, more specifically, the fold forming lever 4
While the cylinder 3 is reciprocating, the hydraulic cylinder 5
By driving the plunger 51 in a desired direction with a desired stroke by driving the driving shaft 0, the connecting shaft 47 can be located at an arbitrary position in the connecting slot 48.

The hydraulic cylinder 50 described above may be replaced by another type of hydraulic actuator or by an electric actuator such as a solenoid. Further, an actuator such as the fluid pressure cylinder 50 enables instantaneous operation. However, if such an advantage is not desired, for example, a motor may be applied.

The hydraulic cylinder 50 does not have its end provided with the fixing pin 49 on the fold forming lever 43 as in this embodiment, but has another end of the pleating apparatus 1. It may be located in a part.

FIG. 7 is a side view showing details of the attitude control mechanism 38 schematically shown in FIG. FIG. 7 illustrates the drive shaft 34 and the claw holding member 28 illustrated in FIG.

As described above, the cam 53 is mounted on the drive shaft 34 which rotates in the direction of the arrow 39. The roller follower cam follower 5 is brought into contact with the cam 53.
4 are arranged. The cam follower 54 is attached to one end of a posture control arm 55 extending as a whole in an L-shape.
The tension spring 57 is connected between the cam follower 6 and the cam follower 6, thereby ensuring that the cam follower 54 comes into contact with the cam surface of the cam 53.

The other end of the posture control arm 55 is fixed to the above-mentioned claw holding member 28. As described above, since the claw holding member 28 is rotatably held about the shaft 44, when the cam follower 54 is displaced by rotation of the cam 53, the posture control arm 55 moves around the shaft 44. It reciprocates in the direction indicated by arrow 58. as a result,
In FIG. 7, as shown by the solid line and the imaginary line, the posture of the fold forming claw 10 changes periodically.

The posture of the fold forming claw 10 will be described in relation to the movement of the tip of the fold forming claw 10 shown in FIG. 4 described above. In FIG. 4, the state shown in (1) is changed to (2). When the trajectory indicated by the arrow 31 leading to the state shown is given to the tip of the claw forming claw 10, the crease forming claw 10 is in the posture shown by the solid line in FIG. Then, during the transition from the state shown in FIG. 4 (2) to the state shown in FIG. 4 (3), the peripheral surface 8 of the transport roller 7 is moved so that the tip of the fold forming claw 10 draws a locus indicated by an arrow 32. The fold forming claw 10 is gradually changed to the position shown by the imaginary line in FIG. Then, while returning from the state shown in FIG. 4 (3) to the state shown in FIG. 4 (1), the tip of the fold forming claw 10 draws a trajectory indicated by an arrow 33 and the peripheral surface of the transport roller 7. 8, the fold forming claw 10 is gradually changed to the position shown by the solid line in FIG.

The posture of the fold forming claw 10 is controlled as follows.
By interlocking with the reciprocating motion of the fold forming claw 10, the tip of the fold forming claw 10 draws a locus as shown by arrows 31 to 33 in FIG. Therefore, the relationship between the angle of the eccentric inner ring 40 and the angle of the cam 53 on one drive shaft 34 is selected so that the tip of the fold forming claw 10 can draw such a locus.

FIGS. 8 and 9 are plan views each showing a typical example of a fabric pleated using the pleating apparatus 1 as described above. In FIGS. 8 and 9, illustration of the valley folds is omitted and only the mountain folds 29 are illustrated in order to avoid complicated illustrations and enable clearer illustration.

In the pleated cloth 2b shown in FIG.
With respect to the direction in which the folds 29 extend, the height of each mountain fold 29 is uniform, but the direction orthogonal to the direction in which the folds 29 extend, that is, the cloth 2
In the feed direction b, the first regions 59 in which the height of the folds 29 is relatively high and the second regions 60 in which the height of the folds 29 are relatively low are distributed alternately.

In order to obtain such a pleated cloth 2b, the first area 59 is fed while the cloth 2 to be pleated is fed.
When the pleating process is performed, the stroke S of the fold forming claw 10 is made relatively large. On the other hand, when the second region 60 is pleated, the stroke S of the fold forming claw 10 is made relatively small. .

A specific description will be given with reference to FIG.
During pleating of the first region 59, the connecting shaft 47 is brought to a position relatively below the connecting slot 48,
By making the distance D relatively short, the fold forming claw 1
The stroke S of 0 is made relatively large. In this state,
After a predetermined number of relatively high folds 29 are formed, the second region 60 is formed.
Move to

When moving to the second region 60, by driving the hydraulic cylinder 50, the connection shaft 47 is brought to a position relatively above the connection long hole 48, and the distance D is made relatively long. Thereby, the stroke S of the fold forming claw 10 is made relatively small. As a result, a relatively low fold 29 is formed in the second region 60.

As described above, when the pleating in the second region 60 is completed, the connecting shaft 47 is returned to a relatively lower position, and the stroke S of the fold forming claw 10 is made relatively large. In this state, pleating in the next first region 59 is performed.

Thereafter, the above-described operation is repeated to produce the pleated cloth 2b in which the first regions 59 and the second regions 60 are alternately distributed as shown in FIG.

As described above, when moving from the first region 59 to the second region 60 and when moving from the second region 60 to the first region 59, the connection shaft 47 is driven by the fluid pressure cylinder 50. The position can be switched,
The timing of this switching is such that the fold forming claw 10 is
As shown in (2), it is preferable to set the timing at which the movement in the direction of arrow 31 is completed.

In the pleated cloth 2c shown in FIG.
In the direction perpendicular to the direction in which the folds 29 extend, similarly to the pleated cloth 2b shown in FIG. 8, there are distributed regions where the height of the mountain folds 29 is relatively high and regions where the height of the mountain folds 29 is relatively low. . The feature of this pleated cloth 2c is that the height of the mountain fold 29 is changed in multiple steps or steplessly.

In order to obtain such a pleated cloth 2c, the position of the connecting shaft 47 in the connecting long hole 48 shown in FIG. 6 may be changed in multiple steps or steplessly.

As described above, during the operation of the pleating apparatus 1, the height of the fold 29 formed can be changed by driving the fluid pressure cylinder 50 and changing the position of the connecting shaft 47. By controlling the operation mode of the plunger 51 for changing the position of the connection shaft 47, the mountain folds 29 having different heights can be formed in an arbitrary distribution mode. Usually, the hydraulic cylinder 50
Is controlled according to a predetermined program. Therefore, by changing the setting of this program, the distribution mode of the mountain folds 29 having different heights is changed.

As described above, the present invention has been described in relation to the illustrated embodiment.
Various embodiments are possible.

For example, in the illustrated pleating apparatus 1, the transport roller 7 is used as the transport means for the cloth 2, but may be replaced with another transport means such as an endless belt.

[0080]

As described above, according to the present invention, the reciprocating operation of the fold forming claw is performed when the cloth to be pleated is being conveyed while the cloth is being folded. Since the stroke is changed, mountain folds having different heights can be formed in an arbitrary distribution pattern on a single piece of cloth without causing fluctuation in the heating time for the cloth.

Therefore, the pleated cloth can be easily diversified.

In the pleating apparatus according to the present invention, the stroke changing means for changing the reciprocating stroke of the fold forming claw is such that the peripheral surface of the conveying means moves and the fold forming claw reciprocates. The pleating apparatus can be operated not only during the operation, but also while the pleating apparatus is stopped. Therefore, even when the setup is changed by changing the stroke of the reciprocating operation of the fold forming claw, such a stroke changing unit can be used, and the setup can be efficiently changed.

In the pleating apparatus according to the present invention, the fold forming claw is attached to the end of the fold forming lever, and the fold forming lever is connected to a connecting link that reciprocates according to the rotation of the drive shaft. It is configured to reciprocate by changing the stroke,
If the connecting link is configured to change the position at which it is connected to the fold forming lever, then using a hydraulic actuator as the means for changing the position at which the connecting link is connected to the fold forming lever, the fold can be instantaneously obtained. The stroke of the forming claw can be changed. Therefore, when changing the stroke, the height of the fold can be reliably changed, and the formation of the fold having an ambiguous height can be prevented.

Further, in the pleating apparatus according to the present invention, when the transfer means has a built-in heater and also serves as the heating means, the transfer means is stopped when changing the reciprocating stroke of the fold forming claw. In this case, the fluctuation of the heating time for the cloth is directly and significantly brought about. Therefore, as in the present invention, the effect of enabling the stroke to be changed while the peripheral surface of the conveying means is moving is used. Can be more significant.

Further, according to the pleated cloth according to the present invention, with respect to the direction orthogonal to the direction in which the folds extend,
Since the area where the height of the fold is relatively high and the area where the height of the fold are relatively low are distributed, it is possible to diversify in appearance, feel, etc., and to increase the commercial value. it can.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing an entire pleating apparatus 1 according to an embodiment of the present invention.

FIG. 2 is a perspective view showing each part of a conveying roller 7 shown in FIG. 1 and a pressing member 19 arranged on a peripheral surface 8 thereof.

FIG. 3 is an enlarged perspective view showing a part of a specific band-shaped body 20 provided on a pressing member 19 shown in FIG.

4 is a cross-sectional view for explaining the principle of forming the folds 29 and 30 by the fold forming claw 10 shown in FIG.

5 is a front view schematically showing an arrangement of a reciprocating mechanism 37 and a posture control mechanism 38 for giving a desired operation to the fold forming claw 10 of the pleating apparatus 1 shown in FIG.

FIG. 6 is a side view showing details of a reciprocating mechanism 37 shown in FIG. 5;

FIG. 7 is a side view showing details of the attitude control mechanism shown in FIG. 5;

FIG. 8 is a plan view showing a pleated cloth 2b as a first example of a pleated cloth obtained by the pleating apparatus 1 shown in FIG.

FIG. 9 is a plan view showing a pleated cloth 2c as a second example of the pleated cloth obtained by the pleating apparatus 1 shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pleat processing apparatus 2 Cloth 2a, 2b, 2c Pleated cloth 7 Conveying roller 8 Peripheral surface 10 Fold forming claw 19 Pressing member 20 Band-like body 21, 24 Tension guide 22, 25 Fixing bar 23, 26 Tension spring 27 Long hole 28 Claw Holding member 29 Mountain fold 30 Valley fold 34 Drive shaft 37 Reciprocating operation mechanism 40 Eccentric inner ring 41 Eccentric outer ring 42 Connection link 43 Fold forming lever 47 Connection shaft 48 Connection long hole 50 Fluid pressure cylinder 51 Plunger 59 First area 60 Second area

Claims (8)

[Claims] 1. a step of transporting a cloth to be pleated in a state sandwiched between a predetermined work surface and a pressing member urged to approach the work surface; Forming a plurality of folds on the cloth by applying a fold forming claw that reciprocates reciprocally in the direction of conveyance of the cloth at a speed higher than the conveyance speed of the cloth while performing the step on the cloth; Changing the stroke of the reciprocating operation of the fold forming claw while performing the transporting step and the fold forming step; and pressing the cloth with the fold formed on the work surface and the pressing. Heating in a state sandwiched between the member and the member. 2. A transport means having a peripheral surface serving as a work surface for arranging a cloth to be pleated, and transporting the cloth along the peripheral surface by moving the peripheral surface. A pressing member, which urges the cloth to be close to the peripheral surface in a state where the cloth is sandwiched between the pressing means, and a plurality of folds on the cloth, A fold forming claw that acts on the cloth while repeatedly reciprocating in the direction of transport of the cloth at a speed higher than the peripheral speed, and while the circumferential surface is moving and the fold forming claw is reciprocating, Stroke changing means for changing the stroke of the reciprocating operation of the fold forming claw; and heating means for heating the cloth having the fold formed between the peripheral surface and the pressing member. Equipped with a pleating machine. 3. The pleating apparatus according to claim 2, wherein said transport means includes a rotating transport roller. 4. The fold forming claw is attached to an end of a fold forming lever that is driven to reciprocate, and the stroke changing means adjusts the reciprocating angle of the fold forming lever. The pleating apparatus according to claim 2 or 3, further comprising means for changing. 5. The fold forming lever is configured to reciprocate by connecting a connecting link that reciprocates according to the rotation of a drive shaft, and the stroke changing means includes: The pleating apparatus according to claim 4, further comprising means for changing a position connected to the lever. 6. The pleating apparatus according to claim 5, wherein the means for changing a position where the connection link is connected to the fold forming lever includes a hydraulic actuator. 7. The pleating apparatus according to claim 2, wherein said transport means has a built-in heater and also serves as said heating means. 8. A plurality of mountain folds and a plurality of valley folds are formed alternately, and with respect to the direction in which the folds extend, the height of each of the mountain folds is uniform, but is orthogonal to the direction in which the folds extend. With respect to the direction, the pleated processing obtained by the pleating method according to claim 1, wherein a region where the height of the mountain fold is relatively high and a region where the height is relatively low are distributed. cloth.