JPH076129B2 - Automatic fabric pattern matching 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 automatic cloth pattern aligning apparatus, and more particularly, it is useful when the pattern on the cloth is continuous in at least the lateral direction, for example, a horizontal striped pattern or a lattice pattern. The present invention relates to an automatic fabric pattern aligning device that exhibits its function.

[0002]

2. Description of the Related Art In recent years, cloth-like fabrics such as clothes and Japanese clothes made of various materials have been commercially available. For example, a knitted fabric made by warp knitting is knitted into a tube shape. It is customary to dye and arrange the items, cut them open, and then roll them around a rod-shaped core in a round shape. In the case of unwinding and cutting the rolled fabric in this manner, first, the fabric is pulled out from the fabric and cut into a predetermined size, and the cut fabrics are laminated in multiple layers. After that, it is cut into a desired shape by using a cutting machine or the like. In this case, when the fabrics are stacked in multiple layers, it is necessary to perform pattern matching of the fabrics for each layer, and especially when the pattern of the fabrics is a striped pattern or a lattice pattern, pattern matching is performed accurately. If it is not, the product after cutting may have a skewed pattern, a bend, or the like, or may vary from product to product. Therefore, the operator can cut the dough into a predetermined size one by one on the horizontal workbench.
Do not pull the fabric from both sides after transferring and spreading it on the top surface.
Adjusted so as not to bend the pattern of dough tempering, and, the
Do the same when overlaying the next fabric on the adjusted fabric.
It is customary to perform manual adjustments so that the patterns on the upper and lower fabrics all match, as well as making the necessary adjustments .

[0003]

However, the cloth having the striped pattern or the lattice pattern as described above has already generated some skew or bending when it is pulled out from the original fabric. Because it appears as a habit of dough,
When fabrics are piled up in multiple layers to perform pattern matching, it is necessary for a large number of workers to stack the fabrics one by one and at the same time, one person must perform the work while checking the pattern position. This requires a lot of labor and time, and the work is complicated and troublesome, and work efficiency and productivity are inevitably deteriorated. In addition, the pattern matching of the above-mentioned dough is currently performed on the upper surface of the work table, that is, on the horizontal surface. When the doughs that are horizontally spread are stacked, the dough does not necessarily shrink or stretch. Occurs on all fabrics that
It is not a problem as long as it is even.
However, since it is a manual work, variations may occur.
Inevitably, therefore, there is a problem in terms of pattern matching accuracy.
It wasn't enough.

The present invention has been made in view of the above-mentioned circumstances, and makes it possible to automate the work of pattern matching of cloth, which has been difficult in the past due to the characteristics of the knit cloth and the like. In addition to improving productivity, it is possible to reduce production costs .
Therefore, it is possible to perform very accurate pattern matching.
An object is to provide a moving fabric pattern matching device .

[0005]

In order to achieve the above object, an automatic cloth pattern aligning apparatus according to claim 1 of the present invention comprises:
A fabric feeding mechanism that vertically feeds the unfolded fabric, an optical reading unit that faces the hanging surface of the drooping fabric and recognizes the fabric pattern, and the above-mentioned drooping of the fabric. parallel at regular intervals laterally along the section backside
Is set, and a plurality of movable needles for pattern alignment is movable in the longitudinal direction and the vertical direction, based on a signal from the optical reading means, sequentially in the longitudinal direction JP each movable needle
Is moved to a constant position, the fabric is moved forward
Laterally continuous fabric in thrust thorns Succoth in the longitudinal direction of the specific portion
And a control means for controlling the vertical position of the cloth so that the pattern is formed in a straight line in the horizontal direction.

Further, in the automatic cloth pattern matching device according to the second aspect of the invention, the optical means is configured to be laterally movable along the cloth surface.

[0007]

According to the present invention, the fabric that has been spread is pulled from Genhan is fed out by Ri out mechanism feed, the feed
Because out dough in a state of being suspended from one end of the delivery mechanism, the dough portion that the droop becomes the natural state in which habit such as skew or bend that been removed the under its own weight.
By optically reading means is directed to a fabric portion which is suspended in the natural state, reads different, and shading colors in the pattern of the fabric, the control means drives and controls the movable needle on the basis of the read result , Because the specified pattern is matched
However, in this case, multiple movable needles are arranged side by side .
Then, the control means is driven and controlled based on the signal from the optical reading means, and each movable needle is sequentially moved to a specific position in the vertical direction.
Together with the vertical direction of the specific箇fabric is moved forward
By piercing the place, the dough is placed at multiple points in the width direction
Then, the pattern is positioned in the vertical direction, and finally the pattern continuous in the horizontal direction on the cloth becomes a straight line . like this
In addition, the fabric is hung down naturally and multiple habits are removed.
A pattern that is continuous with your Keru the transverse direction to the fabric using a movable needle
By repeating the work of aligning horizontally in a straight line, one after another
For all the fabrics sent out with
It is possible to evenly align the continuous pattern of orientation
is there. In this state, the dough is cut to the specified size and stacked.
By doing so, it is possible to avoid the adverse effects of skewing, bending, etc. of each fabric and perform accurate pattern matching.
Further, it becomes possible to favorably perform the subsequent overlapping work and cutting work.

Also, by constructing the optical means so that it can move laterally, the number of reading means can be reduced and the construction can be simplified.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the entire equipment to which the present invention is applied. In FIG. 1, first, in this equipment, a raw fabric base 1 on which a raw fabric M (FIG. 4) formed by winding a fabric MA is placed and set, and a raw fabric base 1 is placed on the raw fabric base 1. An original fabric elevator 2 that moves the existing fabric M upward to convey it to the unraveling position, an automatic fabric unraveling device 3 that unravels the original fabric M in the unraveling position, and expands it over a predetermined size. Fabric feeding mechanism 4 for vertically feeding the fed fabric MA vertically
An optical reading means, such as a CCD camera 5, which is arranged so as to face the hanging front surface of the cloth MA, and the cloth M.
A movable needle 7 for handle positioning, which is arranged facing the back side of the hanging part of A along the back surface of the cloth at equal intervals and is movable by the drive device 6 in the front-back direction and the vertical direction. A handle positioning mechanism 70 having the needle plate 9, a needle plate 9 arranged on the surface of the hanging portion of the cloth MA so as to face each other, and a needle plate 9 arranged on the upper portion, and the needle plate 9 is moved back and forth along the rails 10 and 10. And a moving frame body 11 for moving in the directions (a and b directions).

The automatic cloth pattern aligning device is a control means for driving and controlling the pattern positioning mechanism 70 based on signals from the cloth feeding mechanism 4, the CCD camera 5 and the CCD camera 5, for example, a microcomputer (hereinafter referred to as a microcomputer). , Referred to as a microcomputer) 100. The CCD camera 5 is configured to be movable laterally (x, y) along the rail 52 of the fixed frame 51 shown in FIG.
The CCD camera 5 reads color differences and shades, and the read result is used as an electric signal in the microcomputer 1.
It is sent to 00. Specifically, as shown in FIGS. 2 and 3, the dough feeding mechanism 4 has a motor 42 fixedly installed to drive the belt 41, and the rotation of each motor 42 is driven by a drive roller 44 via a chain 43.
The belt 41 is wound around the driving roller 44 and the driven roller 45. Therefore, the belt 41 is driven in the normal and reverse directions as the motor 42 rotates in the normal and reverse directions.

On the other hand, as shown in FIG. 4, the original fabric elevator 2 has a sprocket 13 ... Rotatably attached to the upper and lower ends of the left and right standing frames 12, 12 (the left side is not shown). ) Around which endless chains 14 and 14 are wound, and both ends of a plurality of connecting rods 15 are fixed to both of these chains 14 and 14, and a tongue-shaped receiving member 16 is provided at a predetermined position of these connecting rods 15. 16 is attached. And left and right 1
The pair of sprockets 13 and 13 are fixedly mounted via the support shaft 17, and the endless chains 14 and 14 are driven by the operation of the motor 18 located below the right standing frame 12 and accordingly. The connecting rods 15, 15 and the receiving members 16,
16 is repeatedly moved up and down. Therefore, as shown in FIG. 5, the original fabrics M placed on the original fabric base 1 are automatically lifted one by one by the original fabric elevator 2, and when they reach the upper end thereof, the mounting base slope 2a.
To reach the unwinding position S.

As shown in FIG. 6, the automatic fabric disassembling apparatus 3 has a first driving roller 21 and a second driving roller 23 ...
And the first and second drive rollers 21 and 22 can be rotated forward and backward by a motor (not shown). Further, immediately before the first drive roller 21, there is provided an air ejecting means having an ejection hole 26 ... Formed on the upper surface of the air circulation pipe 25. This ejecting means is shown in FIG.
As shown in FIG. 3, the air pressure-fed through the air hoses 27 is jetted upward from the jet holes 26 of the air flow pipe 25 as shown by an arrow. As shown in FIG. 8, the air hose 27 is connected to a small compressor 27a, and this small compressor 27a is attached to the lower part of the original fabric elevator 2 as shown in FIG. Further, as shown in FIG. 6, a hooking member made of a wire 28 is stretched right in front of the air flow pipe 25, and both ends of the wire 28 are paired with each other so as to be rotatable at a predetermined turning radius. It is fixed to the front ends of the arm members 29 .... The arm member 29 includes a motor 30
Thus, it is forcibly turned around the support shaft 31. When performing the unwinding operation of the original sheet M, as shown in FIG. 8, first, the original sentence M conveyed to the unfolding position S is rotated by driving the first drive roller 21 in the arrow direction. At the same time as rolling in the counterclockwise direction, air is jetted from the air flow pipe 25 of the air jetting means to the outer peripheral surface of the raw sheet M. As a result, the fabric end portion (winding end portion) Ma of the original fabric M floats up as the air is ejected. However, in such a state, the air ejection is stopped, or
Or, by slightly turning the arm member 29 manually clockwise, the cloth end portion Ma is brought into contact with the wire 28, and the fact of this contact is detected by a pressure sensor or the like,
If the motor 30 is started in accordance with this detection, the arm member 29 with the cloth end portion Ma hooked on the wire 28 is detected.
As shown by the chain line in the figure, the fabric is swung by approximately 180 °, and accordingly, the fabric end portion Ma passes above the belt 4 and reaches the rear thereof, and the fabric is expanded. It should be noted that the detection of the activation start timing of the motor 30 is not limited to the use of the pressure sensor or the like as described above, and, for example, that the edge of the fabric end portion Ma in the lifted state has reached a predetermined front position. It is also possible to use an optical sensor or the like for detection.

On the other hand, in the handle position adjusting mechanism 70, a plurality of movable needles 7 arranged in parallel at intervals of about 20 cm are attached to the movable base 71 as shown in FIGS. 9 and 10. Reference numeral 72 denotes a rack that meshes with a pinion (not shown) driven by a motor 73, and these drives the movable table 71 in the vertical direction (directions of arrows c and d). 74 is a fixed base, 75 is a cylinder device attached to the fixed base 74, and 76 is a holder portion for the motor 73 or the like. The cylinder device 75 causes the holder portion 76 to move in the front-back direction (arrow direction) along the guide rail 77. It is designed to be driven in the a and b directions). Reference numeral 78 is a slit through which the movable needle 7 is exposed.

Reference numeral 32 is a sensor for detecting the looseness of the cloth at the time of feeding the cloth, 33 is a sensor for detecting the cloth width, 3
Reference numeral 4 is a sensor for detecting the lower end of the cloth when the cloth is fed. Reference numeral 35 denotes a guide rail horizontally provided between the movable needle 7 and the needle plate 9, and at one end thereof is an air blowing device in which a tool rest 37 having a rotary cutter 36 is movably provided, It has a hole 39 for ejecting air.

After the original fabric M is disentangled by the automatic fabric disassembling device 3 and the fabric is spread over a predetermined size, the following processing is performed. That is, to explain in comparison with FIG. 11 and FIG. 1, after the upper surface of the belt 41 of the fabric feeding mechanism 4 is expanded and then expanded, a sensor for detecting that the arm member 29 has reached the turning end is detected. Based on a signal or the like, the first drive roller 21 and the second drive roller 22 rotate clockwise to feed the material MA. In this case, the belt 41 and the second drive roller 22
Between the first and second drive rollers 21 and 2 at the time when the slack amount control sensor 32 detects that the slack Mb of the cloth MA has reached a predetermined amount.
The rotation of 2 stops. After that, the cloth is sent out by the belt 41 and drops vertically downward, but the lateral deviation of the cloth MA at the time of this drop is detected by the cloth width sensor 33, and based on this detection result. The lateral displacement of the fabric MA is adjusted by laterally moving the belt 41, or by engaging a separately provided slide member with the left and right ends of the fabric and moving the fabric MA in the lateral direction . Then, when the lower end position control sensor 34 detects that the lower end of the cloth MA has dropped to a predetermined position, the feeding of the cloth MA by the belt 41 is stopped.

[0016] In After this, although perform processing so I handle case of the fabric MA by cooperative operation of the CCD camera 5 and the movable needle 7, in this case, the fabric MA, which is detected by the CCD camera 5 colors different, or detection signals indicating shading is sent as a drive signal for pairs to the driving device 6 through the microcomputer 100. Then, the pattern alignment mechanism 70 and the CCD camera 5 are sequentially arranged from the left end or the right end, and the pattern alignment with respect to the horizontal direction of the fabric MA, that is, the horizontal stripes of the fabric MA are aligned horizontally. Specifically, first, the CCD at either the left end or the right end
After the microcomputer 100 receives the signal from the camera 5 and analyzes the signal, the motor 73 of the drive device 6 in the handle alignment mechanism 70 facing the CCD camera 5
Is driven to move the movable needle 7 in the vertical direction to move it to a specific position in the vertical direction of the horizontal stripe pattern of the fabric MA, for example, to the same level as the position where the color changes or the position where the shade changes. . Then, the cylinder device 75 is driven to move the movable needle 7 forward.

By the moving operation of the movable needle 7 as described above ,
Te, soluble <br/> Dohari 7 on purpose becomes like the Tsu thrust thorns specific portion in the longitudinal direction of the horizontal stripe pattern of the fabric MA, thereby, the horizontal straight line patterns of the movable needle 7 is continuous in the transverse direction of the fabric MA State
As described above, the vertical position of the cloth MA is determined.
After this, the movable needle 7 penetrating the cloth MA is moved to a predetermined position that is arbitrarily determined before the work and is fixed at that position. Next, the CCD camera 5 is moved along the guide rail 52 to a position facing the movable needle 7 of the adjacent handle alignment mechanism 70, and the above steps are sequentially repeated based on the image data from the CCD camera 5. By sequentially performing this operation for all the pattern alignment mechanisms 70, the horizontal stripes of the fabric MA can be accurately aligned in the horizontal direction. Moreover, since the movable needle 7 is pierced into the fabric MA and displaced in the vertical direction, there is no slip and the like, and the pattern alignment accuracy is remarkably high.

When the pattern matching work is completed, all the movable needles 7 are moved to the predetermined positions related to the cutting work. Next, the air cylinder 90 is operated to move the moving frame 11 along the rails 10 and 10 in the direction of the arrow a, thereby moving the throat plate 9 to the material hanging position. At this time,
A plurality of needles 8 are provided at the upper end of the needle plate 9, and the needles 8 pierce the above-mentioned pattern-matched cloth MA. That is, the movable needle 7 is pierced from the back side of the fabric MA, and the needle 8 is pierced from the front side. In this state, the cutting process of the fabric MA by lateral movement along the Oite rotary cutter 36 in the guide rail 35 between the movable needle 7 and the needle 8.

After cutting the fabric MA, the movable needle 7 of the handle alignment mechanism 70 is retracted to pull out the movable needle 7 from the fabric MA. On the other hand, by blowing air from the hole 39 of the air blowing device 38 toward the needle 8 side, the cut material MA
Is pierced by the needle 8 and returned to a predetermined position together with the needle plate 9. By repeating this process, the fabrics MA that are patterned on the needle plate 9 and cut into a predetermined size are laminated in multiple layers.

After the above-mentioned superposition work is completed, the needle plate 9 in the vertical state is rotated by 90 ° about the rotation supporting shafts 9b, 9b manually or by using a motor or the like, as shown in FIG. Thus, the needles 8 are made horizontal, and then all the needles 8 ... Are moved downward by the operation of the needle driving air cylinders 60, 60 attached to the left and right ends of the needle plate 9, and pulled out from the cloth MA. Then, after that, the multi-layered fabric MA is transferred to the cutting table 80 that can move toward and away from the throat plate 9, and cutting is performed by a cutting machine (not shown).

In the above embodiment, one CCD camera 5 is configured to be laterally movable to simplify the structure. However, a plurality of CCs equal to or less than the number of movable needles 7 are provided.
The D camera may be fixed and used. Further, in the above embodiment, the CCD camera 5 is used as the optical reading means, but other sensors can be used as long as they are capable of detecting the difference in color or the shade of the material MA. Good. Further, in the above-described embodiment, the pattern matching work is applied to the case where the pattern of the fabric MA is horizontal stripes. However, in addition to this, the pattern matching work when the pattern of the fabric MA is a lattice or the like is similar to the above. It is applicable.

[0022]

As is evident from the foregoing description, according to claim 1 of the present invention, in opposition to the back surface side of the suspended portion of the dough fed longitudinally hanging like fabric feeding mechanism, the longitudinal direction and the front-rear direction a movable movable needle plurality juxtaposed laterally to, these movable needle, and then, is driven and controlled based on a signal from the optical reading means opposed to the surface side of the fabric, raw
When the ground is pulled out from the original fabric, some skew or bending
Even if it has habits such as bittern,
The fabric by pulling it down
It is possible to extend and remove the habit naturally.
Therefore, as is the case with the conventional method, the fabric is
Force the habit by spreading it on a horizontal surface and pulling from both sides
While removing it, combine the patterns one by one when stacking the dough
As compared to the case that, you improve not authored of work and productivity
In addition to being able to achieve reductions in production costs associated with mass production, it is also necessary to manually create habits.
Due to the amount of force that cannot be avoided in the industry
There is no variation in the degree of shrinkage or expansion that occurs,
Eliminate habits evenly for all fabrics that are layered
The pattern alignment accuracy of fabrics that can be stacked
It can be significantly improved. In addition, the fabric unwinding work which is the previous process and the fabric cutting work which is the subsequent process are smoothly linked, which can greatly contribute to the automation of all these processes.

According to the second aspect of the present invention, since the optical reading means can be moved laterally, it is possible to achieve simplification of the entire structure and cost reduction.

[Brief description of drawings]

FIG. 1 is a perspective view showing the overall configuration of equipment to which the present invention is applied.

FIG. 2 is a plan view of essential parts showing an automatic fabric pattern matching device according to the present invention.

FIG. 3 is a front view of the main part of FIG.

FIG. 4 is a perspective view showing an original fabric elevator of the apparatus equipment.

FIG. 5 is a schematic side view showing the operation of the equipment.

FIG. 6 is a plan view showing a fabric disassembling device of the equipment.

FIG. 7 is a front view showing an air ejecting means of the equipment.

FIG. 8 is a side view showing the operation of the fabric unwinding device.

FIG. 9 is a front view showing a pattern matching mechanism.

FIG. 10 is a side view of FIG. 9.

FIG. 11 is a perspective view showing the operation of the equipment.

FIG. 12 is a perspective view showing a needle plate and a cutting table of the equipment.

[Explanation of symbols]

 4 Material feeding mechanism 5 Optical reading means 7 Movable needle 100 Control means MA material

Claims (2)

[Claims] 1. A device for automatically performing pattern matching of a fabric having a pattern continuous in at least a horizontal direction, which comprises a fabric feeding mechanism for vertically feeding the spread fabric, and a fabric feeding mechanism for hanging the fabric. Facing the hanging surface of the dough
The optical reading means for recognizing the texture pattern and the optical reading means for recognizing the texture pattern are arranged side by side at equal intervals in the lateral direction along the back surface of the hanging part, and are movable in the front-back direction and the vertical direction. Based on the plurality of movable needles for the handle position and the signals from the optical reading means, the movable needles are sequentially identified in the vertical direction.
The fabric vertically as well as
Continuous in the transverse direction of the dough thorn Succoth against the specific part of the countercurrent
An automatic fabric pattern aligning device, comprising: a control means for controlling the vertical position of the fabric so that the pattern becomes a straight line . 2. The automatic cloth pattern aligning apparatus according to claim 1, wherein the optical reading means is configured to be laterally movable along the cloth surface.