JP2541817Y2 - Device for adjusting the direction of feeding of cloth - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a fabric that is unwound onto a gantry when the fabric is moved back and forth with a small width while performing pattern matching. The present invention relates to a device for correcting skew of a texture of a pattern or a fabric in advance.

[Prior art] In the case where pieces of cloth unwound from a reversing machine are piled up on a reversing stand, and they are cut together in a later process, if the piece of cloth is a pattern, pattern matching is performed when the pieces are overlapped. There is. This pattern matching is to superimpose piece-by-piece piece or piece of texture with a certain degree of accuracy and without positional deviation.

[Problem to be solved by the invention] This pattern matching is performed by pushing and pulling back and forth a plurality of locations in the width direction of a piece of cloth unwound from a reversing machine onto a rolling table, thereby narrowing the position of the piece of cloth back and forth. If the movement is performed automatically, so that the pattern of the piece of cloth is superimposed on the pattern of the piece of cloth which has been previously extended, the piece of cloth which has been previously extended and the piece which has been extended subsequently If there is a large positional deviation between the patterns, the positional deviation cannot be corrected simply by moving the cloth back and forth with a small width as described above, and accurate pattern matching cannot be performed.

Therefore, conventionally, both ends of the stretched cloth are held by hand,
The pattern matching that relies on the hand that performs pattern matching between pieces by piercing a fixed part of the piece with a needle provided on a table different from the table and the table. Had to be done.

The present invention has been made in view of the above circumstances, and when automatically performing pattern matching during spreading by a reversing machine, a device for correcting a material feeding direction of a reversing machine that exhibits a function of assisting the pattern matching. The purpose is to provide.

[Means for Solving the Problems] The device for correcting the cloth feeding direction of a reversing machine according to the present invention includes a support roller provided on a main body of the reversing machine that is driven back and forth.
A movable member is supported, and a rotating shaft of a drive motor installed on the reversing machine main body side is meshed with a rack on the movable member side via a pinion attached to the rotating shaft, so that the movable member is A raw material supporting unit for supporting the raw material is supported via its longitudinal axis on a movable member thereof, which can be displaced in the left-right direction orthogonal to the drawing direction of the cloth, and a drive motor installed on the movable member The rotating shaft is meshed with a rack provided in the material support unit via a pinion attached to the rotating shaft, and the material supporting unit is swingable around the vertical center axis of the vertical axis. Is what it is.

[Operation] In this cloth feeding direction correcting device, when the movable member is displaced in the left-right direction, the raw material supporting unit on which the raw material is mounted is displaced right and left, and the feeding position of the cloth fed out from the raw material is changed. The position is corrected left and right. In addition, by swinging the material support unit about its vertical center axis, the direction in which the cloth is fed to the reversing machine changes. Therefore, for example, even if the pattern or texture of the original web mounted on the web support unit is twisted in the direction in which the cloth is fed by the reversing machine, the twist is eliminated only by swinging the web support unit. You.

In particular, in this invention, by engaging the pinion attached to the rotating shaft of each drive motor with the rack,
Since the displacement of the movable member in the left and right direction and the swing of the material support unit are enabled, each of the above-mentioned drive motors is operated while running the main body of the spreader and unloading the material from the material support unit. Has the advantage that it is not necessary to remove the cloth from the raw fabric support unit and stop the running of the main body of the spreader each time when correcting the feeding direction of the cloth. .

[Embodiment] Hereinafter, a device for correcting the cloth feeding direction of a reversing machine according to an embodiment of the present invention will be described.

In FIG. 1, reference numeral 1 denotes a spreading table, along which the spreading machine 2 travels back and forth. The reversing machine 2 includes a reversing machine main body 21 having traveling wheels 22 driven by a driving device (not shown), and a reversing unit 23 including a reversing roll 24, a feeding roll 25, and a cloth support frame 26. An original fabric support unit 27 including unraveling rolls 27a, 27a and auxiliary rolls 27b, 27b, a cloth cutting device 28 including a cutter 28a, and the like are provided. In such a spreading machine 2, the roll-shaped web 100 is released by the reversing action of the web supporting unit 27 and the reversing unit 23 while being mounted on the web supporting unit 27. It is paid out in front of 2.

Reference numeral 3 denotes a lifting unit. The elevating unit 3 is configured to be raised and lowered with respect to the main body of the reversing machine. The elevating unit 3 includes a feeding guide plate 31 extending diagonally downward,
A pattern position correcting means 32, a pattern recognizing means 33 and the like are provided. The feeding guide plate 31 has a role of feeding the product C onto the spreading base 1 while supporting the cloth C fed forward of the spreading machine 2. The pattern position correcting means 32 is a guide plate for feeding when the pattern is aligned.
The cloth C is partially pushed forward or backward by pressing the cloth C onto the cloth 31 so that the pattern of the cloth C is overlapped with the pattern of the cloth on the reversing base 1 which has been previously extended. C
Has the role of correcting the position. The pattern recognizing means 33 is constituted by a camera having a function of imaging the pattern of the cloth C fed out on the feeding guide plate 31 and projecting the image on the monitor M. Is processed by the control means incorporated in the operation panel 4, and the forward / backward width of the pattern position correcting means 32 is controlled by a command based on the processing result.

When rolling is performed with the reversing machine 2, the reversing machine 2 is retracted from a predetermined position (the reversing start position) of the reversing table 1 while the reversing machine 2 moves from the raw material 100 mounted on the raw material support unit 27. Cloth C
Is pulled out onto the spreading table 1, and when the spreading machine 2 is retracted to a predetermined position, the cloth cutting device 28 is operated to cut the cloth C. Thereby, the first sheet is extended. Next, after the reversing machine 2 is advanced to the reversing start position, the same operation is repeated to perform the second reversing. Due to such spreading, the cloth C is stacked on the rolling base 1.

The pattern matching is performed at a stage during which the piece C is extended. That is, during the spreading, the spreading machine 2 temporarily stops at a predetermined position, and pattern matching is performed at that position. This pattern matching is performed by the cloth C imaged by the pattern recognition means 33.
The pattern position (recognized pattern position) on the reversing table 1 is compared with the pattern position (initial pattern position) registered in advance in the control means by the operation of the control means, and the control means based on the comparison result. This is performed by operating the pattern position correcting means 32 according to a command, and a series of these methods of pattern recognition and pattern position correction are called a visual positioning system. Such pattern matching is performed part by part of the cloth C by individual pattern position correcting devices 32 arranged side by side in the width direction of the feeding guide plate 31, and when the pattern matching is performed at all points, the cloth matching is performed. C
The pattern matching of the full width portion is completed. The cloth C whose pattern has been adjusted is positioned on the spreading base 1 by a positioning means (not shown). When this pattern matching is completed, the pattern position correcting means 32 moves up and away from the cloth C on the feeding guide plate 31, and the reversing machine 2 is retracted and the cloth C is fed out, so that the rolling is resumed.

By the way, when the above-described pattern matching is performed, the initial pattern position and the recognized pattern position are not always misaligned only in the front-back direction. That is, the initial pattern position and the recognition pattern position may be displaced not only in the front-back direction but also in the left-right direction, or may be displaced obliquely. Then, it is difficult to correct the positional deviation in the left-right direction by the operation of the pattern position correcting means 32, and the oblique positional deviation can be corrected by the operation of the pattern position correcting means 32 if the deviation width is large. become unable. So, to prevent such a situation,
The cloth feeding direction correcting device A shown in FIG.

The cloth feeding direction correcting device A includes an ear alignment mechanism 5 and a swing mechanism 6.

The ear aligning mechanism 5 is a mechanism for correcting the position of the material support unit 27 in the left-right direction (arrows X ₁ , X ₂ ) orthogonal to the direction in which the cloth is fed, and a support roll 51 provided on the main body 21 of the reversing machine. , 51
The movable member 52 is provided so as to be displaceable in the left-right direction, and the material support unit 27 is attached to the movable member 52. Reference numeral 53 denotes a drive motor provided on the reversing machine main body 21 side, and a rotation shaft thereof is meshed with a rack 55 on the movable member 52 side via a pinion 54.

In this ear aligning mechanism 5, by rotating the drive motor 53 in a forward or reverse direction, the movable member 52 by the action of the pinion 54 and the rack 53 is displaced leftward X ₁ or rightward X _2.
Therefore, if the displacement width is set appropriately, the feeding position of the cloth C fed from the web support unit 27 is corrected to the left and right, and the above-described left-right positional deviation between the initial pattern position and the recognition pattern position is eliminated. It is possible to

The swing mechanism 6 swings the material support unit 27 around its vertical center line axis Z-Z, so that the solution roll 27a of the material support unit 27 and the solution release unit 23 shown in FIG. This is a mechanism for changing the parallelism of the roll 24. The swing mechanism 6 is configured such that the material support unit 27 is attached to the movable member 52 via a longitudinal axis 61 so as to be swingable around a vertical center line Z-Z. Reference numeral 62 denotes a drive motor provided on the movable member 52 side, and its rotation shaft is meshed with a rack 64 on the raw fabric support unit 27 side via a pinion 63.

In this swing mechanism 6, when the drive motor 62 is rotated in the forward or reverse direction, the material support mechanism 27 swings around the vertical center axis Z-Z by the action of the pinion 63 and the rack 64. Therefore, if the swing width is appropriately set, the parallelism between the solution-rolling roll 27a and the solution-rolling roll 24 in FIG. 1 changes.

FIG. 3 illustrates the operation of the swing mechanism 6 in an explanatory manner. That is, if the web 100 supported by the web support unit 27 is twisted in the imaginary line with respect to the running direction L of the webbing machine 2, one of the patterns F indicated by the imaginary line of the web 100 The part may be located outside the range H that can be corrected by the pattern position correcting means 32 described above. When pattern matching of the cloth C is performed in this state, the pattern is corrected by the pattern position correcting means 32 at the center in the width direction of the cloth C, and accurate pattern matching is performed.
At both ends of the cloth C, pattern matching by the pattern position correcting means 32 becomes difficult. In such a case, the original fabric support unit 27 is swung in a predetermined direction by the swing mechanism 6, and the patterns F at both ends of the cloth C are corrected by the pattern position correcting means 32 as shown by solid lines in FIG. The pattern matching by the position correcting means 32 can be accurately performed over the entire width of the cloth C. In this sense, the swing mechanism 6 has a function of assisting pattern matching.

[Effects of the Invention] According to the present invention, the pattern of the fabric and the texture of the fabric unwound from the web mounted on the web support unit are displaced in the left-right direction and twisted in the fabric unwinding direction. It will be possible to make some corrections before it is revoked. In particular, in the present invention, it is not necessary to remove the cloth from the raw fabric support unit or stop the running of the main body of the spreader each time when correcting the feeding direction of the cloth. Therefore, it is useful as a device capable of exhibiting an auxiliary function of pattern matching at the time of automatic operation of a reversing machine accompanied with high-precision pattern matching by the visual positioning system.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a spreader equipped with a cloth feeding direction correcting device according to an embodiment of the present invention, FIG. 2 is a front view of the cloth feeding direction correcting device, and FIG. It is an operation explanatory view. A: Cloth feeding direction correcting device, C: Cloth, X ₁ ... Left direction, X ₂ ... Right direction, 2... Reversing machine, 27. ... Source, ZZ: The vertical center axis of the source support unit.

Claims (1)

(57) [Scope of request for utility model registration] A movable member is supported by a supporting roller provided on the main body of the roll machine that travels back and forth, and a rotating shaft of a drive motor installed on the main body of the roll machine rotates the movable member. The movable member is engaged with the rack on the movable member side via a pinion attached to a shaft so that the movable member can be displaced in the left-right direction orthogonal to the unreeling direction of the cloth, and the movable member supports the material web. The raw fabric support unit is supported via a vertical axis, and a rotation shaft of a drive motor installed on the movable member is mounted on a rack provided on the raw fabric support unit side via a pinion attached to the rotary shaft. A cloth feeding direction correcting device for a roll-to-roll machine, wherein the raw material supporting unit is meshed and swingable about the vertical center axis of the vertical axis.