JPH0770915A - Method for cutting towel cloth - Google Patents

Abstract

PURPOSE:To provide a method for cutting towel cloth capable of automatically continuing the cutting work even in the case of towel raw fabric having a weaving miss in the length of the pile weave part or plain weave part or towel raw fabric having a joint part to connect the towel raw fabrics. CONSTITUTION:The cutting apparatus to be used in this cutting method is provided with a feeding length detection means 7 to detect the feeding length necessary for aligning the boundary line of towel cloth A and outputting the detected value (p), a standard level setting means 12 to set a standard level U corresponding to the kind of the towel cloth A and a comparison means 11 to judge whether the value (p) detected by the feeding length detection means 7 falls within the prescribed range based on the standard value U. When the detected value (p) is out of the prescribed range based on the standard value U, the operation is judged to be abnormal, towel raw fabric B is extracted without cutting the plain weave part A2 and the next plain weave part A2 is cut. The productivity and workability of a towel sewing factory are remarkably improved by this method.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cutting towel cloth.

[0002]

2. Description of the Related Art In a towel garment factory, from a long towel material in which pile weave portions and plain weave portions are alternately and continuously woven, various predetermined lengths are provided on a workbench having a cutting device. In the same manner as above, the plain weave portion is cut out to make a towel cloth, which is sewn.

However, in the conventional method for cutting towel cloth, only the towel roll in which the pile weave portion and the plain weave portion are regularly and alternately woven for a predetermined length is normally used. It is designed to work, and there is a towel roll with a weaving mistake in the length of the pile or plain weave part,
Towel rolls that have a splice part that is the connection part of the towel roll cannot be handled, and the cutting device is stopped every time there is a weaving mistake or a splice part of the towel roll, and the towel roll is set. It needs to be reworked. Therefore, the conventional cutting method has a problem that productivity and workability in a towel sewing factory are reduced.

The present invention is a towel which can automatically continue the cutting operation of the towel cloth by feeding the towel cloth to the towel cloth having the plain weave portion or the pile weave portion having a wrong weaving length. It provides a method for cutting dough.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional technical problems, and its construction is such that pile woven portions A1 and plain woven portions A2 are alternately and continuously woven. A towel that cuts the plain weave portion A2 by aligning the boundary line AL between the plain weave portion A2 and the pile weave portion A1 after intermittently pulling out approximately one towel cloth A from the long towel raw material B A cloth cutting method, which detects a feed length required to align the boundary line AL of the towel cloth A,
The feed length detection means 7 for outputting the detection value p, the basic value setting means 12 for setting the basic value U according to the towel material, and the detection value p by the feed length detection means 7 are predetermined with respect to the basic value U. And a comparison means 11 for determining whether the detected value p is within the predetermined range with respect to the basic value U, the plain weave portion A2 is cut, and the detected value is determined. When p is not within a predetermined range with respect to the basic value U, it is judged to be abnormal, and the original towel cloth B is drawn out without cutting the plain weave portion A2, and the next plain weave portion A2 is cut. It is a method of cutting towel cloth.

[0006]

When the towel cloth A for one sheet is cut from the long towel cloth B in which the pile weave portion A1 and the plain weave portion A2 are alternately formed, first, approximately one sheet of towel cloth A is pulled out. Then, the boundary line AL of the towel cloth A is aligned, the feed length detecting means 7 detects the feed length required for this alignment, and outputs the detection value p. On the other hand, in the comparison means 11, the detected value p is compared with the basic value U preset in the basic value setting means 12, and when the detected value p is within a predetermined range with respect to the basic value U, it is judged as normal. Then, the plain weave portion A2 is cut, and when the detected value p is not within the predetermined range with respect to the basic value U, it is determined to be abnormal, and the original towel towel B is pulled out without cutting the plain weave portion A2, The plain weave portion A2 is cut. When the towel cloth A becomes abnormal, it is a towel material having a weaving error in the length of the pile weave part or the plain weave part, or a towel material having a splicing part that is a connection part of the towel material. Is. In such a case, the towel original fabric B is pulled out without cutting the plain weave portion A2, and the next plain weave portion A2 is cut.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 16 show one embodiment. In the figure, reference numeral B is a towel original, and towel original B is shown in FIG.
4, as shown in FIG. 15, the pile woven portion A1 for every fixed length
The towel cloth A is made of continuous fabric and has a continuous weave portion A2, and the pile weave portion A1 has a length M and a plain weave portion A2.
Is N in length. FIG. 16 shows a towel cloth cut from the towel raw fabric B at the center of the plain weave portion A2. Therefore, the total length of the towel cloth A is M + 2 × N / 2.

In FIG. 1, reference numeral 1 denotes a towel automatic sewing machine main body, and one working table 2a and the other working table 2b sandwich a space 2c so as to be integrated with the towel automatic sewing machine main body 1. Are facing each other. The towel material A drawn from the towel raw material B is sent in the direction of arrow R on both the worktables 2a and 2b.

Reference numeral 3 denotes a clamp device arranged on the other workbench 2b, which has a function of holding a plain weave portion A2 which is an end portion of the towel material A and pulling out a predetermined length from the original towel cloth B. That is, the clamp device 3 reciprocates in the direction of arrow R on the work table 2b by a driving device (not shown) such as a cylinder device fixed to the other work table 2b, and the base 3a provided at the tip end portion. The end portion of the plain weave portion A2 is clamped by, and a predetermined length is pulled out from the original towel cloth B after being cut by the cutting device 5 to be described above to above the space 2c of the workbench.

Numeral 4 is a stopper device provided on one workbench 2a, which is arranged in a straight line across the longitudinal direction of the towel material A fed in the direction of arrow R and sandwiches the towel material A. By the forward movement of the cylinder device 4c that is provided with the upper block 4a and the lower block 4b and is fixed to the towel automatic sewing machine body 1, the upper block 4a is lowered onto the towel cloth A, and the upper block 4a and the lower block 4b are used. The plain weave portion A2 of the towel cloth A is passed through, but a stop slit t is formed to prevent the pile weave portion A1 from passing therethrough. That is, as shown in FIG. 2, the operation of the stopper device 4 causes the plain weave portion A2 to move to the pile weave portion A2.
Step ALS of the rear boundary line AL where the texture changes to 1
However, it is blocked by the stop slit t formed by the upper block 4a and the lower block 4b, and the feeding of the towel cloth A from the original towel cloth B is stopped.

The cutting device 5 is provided on one workbench 2a, and is arranged at a predetermined distance from the stopper device 4 on the front side of drawing out the towel cloth A. This predetermined distance is half (N / 2) of the regular length N of the plain weave portion A2 shown in FIGS. The cutting device 5 operates the cylinder device 5c fixed to the main body 1 of the automatic towel sewing machine, moves the movable cutter 5a toward the fixed cutter 5b, and cuts the towel material A between the cutters 5a and 5b. it can.

Reference numeral 6 denotes a towel cloth feeding device which is provided in the space 2c of the work table so as to traverse the longitudinal direction of the towel cloth A. The towel cloth feeding device 6 is a pulse motor 6 fixed to the side surface of the main body 1 of the automatic towel sewing machine.
a as a drive source, a bar member 6d fixed to the timing belt 6b, and a plurality of towel cloth pressing members 6 attached to the bar member 6d by individually interposing air cylinders or the like.
and c. The bar member 6d and the towel material pressing member 6c are integrated with each other, and the bar member 6d and the towel material pressing member 6c are lowered into the space 2c of the work table. (To be described later, length Y) The towel material A is fed out, and the individual towel material pressing member 6c is lowered with respect to the bar member 6d, so that the towel material A having a predetermined length (length P to be described later) is delivered. . The rotation of the pulse motor 6a is controlled by the microcomputer 10 serving as a control device. By the operation of the clamp device 3 and the lowering of the bar member 6d of the towel cloth feeding device 6, a predetermined length of the towel cloth A, which is almost one sheet of towel cloth A, can be intermittently pulled out.

Reference numeral 7 denotes a rotary encoder which is a feed length detecting means, and is a towel original fabric B rather than the stopper device 4.
Is placed on one of the worktables 2a and is always in contact with the surface of the towel material A pulled out on the one worktable 2a with a predetermined frictional force, and is synchronized with the feeding of the towel material A. It is rotatably supported on a support shaft 7a fixed to the towel automatic sewing machine main body 1 so as to be rotationally driven.
The rotary encoder 7 includes a stop slit t for sandwiching the plain weave portion A2 of the towel cloth A by the stopper device 4.
After forming, the feeding length P of the towel material A fed by the towel material feeding device 6 is measured.
The rotary encoder 7 allows the clamp device 3
It is also possible to measure the total length of the towel cloth A fed by the towel cloth feeding device 6.

That is, after the towel cloth A (a fixed length (Z + Y) to be described later) of about one sheet is fed out on the workbench 2a, 2b, the stopper device 4 is actuated to move the towel cloth A.
A stop slit t sandwiching the plain weave portion A2 is formed. After that, the plurality of towel cloth pushing members 6c of the towel cloth feeding device 6 individually descend in the width direction of the towel cloth A, and the step portion ALS of the boundary line AL of the pile weave portion A1 stops as shown in FIG. The slits t stop the alignment so as to form a straight line, and exactly one sheet of towel cloth A is fed. The rotary encoder 7 detects the pay-out length of the towel cloth A to be fed as the towel cloth pushing-down members 6c of the towel cloth feeding device 6 are lowered, and outputs a detection value p. The detected value p is input to the microcomputer 10 shown in FIG.

The microcomputer 10 comprises a comparison means 11 and a basic value setting means 12 as shown in FIG. The basic value U corresponding to the towel material A is stored in advance in the basic value setting means 12. Further, the comparison means 11 is
The detected value p and the basic value U are compared, and the detected value p is
It is judged whether or not it is within a range of a preset error value ± σ from a preset basic value U, and if it deviates from the predetermined range, the stopper device driving means 13 is operated and the cylinder device 4c of the stopper device 4 is returned. Activate. This allows the stop slit t to pass through the pile weave portion A1.
Open up. Here, when the detected value p deviates from the preset basic value U and the range of the predetermined error ± σ, for example, the plain weave portion A2 due to a weaving error of the towel raw fabric B or a rejoining portion.
This is a case where the length of the pile woven portion A1 is abnormal.

The stopper device driving means 13 is specifically composed of the switching valve 14 shown in FIG. 1. By setting the switching valve 14 to the position a, the air pressure source 15 is provided in the lower chamber of the cylinder device 4c. Since the pressurized air from the cylinder device 4c is supplied and the upper chamber of the cylinder device 4c is drained, the upper block 4a rises and the switching valve 14 b
By taking the position, the compressed air from the air pressure source 15 is supplied to the upper chamber of the cylinder device 4c and the lower chamber of the cylinder device 4c is drained, so that the upper block 4a descends.

In FIG. 4, the towel material A is pulled out by the clamp device 3 by the length Z, and in FIG. 5, the length Y is then fed out by the bar member 6d of the towel material feeding device 6, and the stopper device 4 is activated. Then, as shown in FIG. 6, the length of the towel cloth feeding device 6 is drawn out by a plurality of towel cloth pushing-down members 6c until the stop slit t prevents passage of the next pile weave portion A1. It is a relationship diagram which shows P. Therefore, in FIGS. 4 to 6, Z, Y, P, R, θ, M, and N represent the following various quantities.

Z: A predetermined length by which the towel material A after being cut by the cutting device 5 is pulled out by the clamp device 3. Y: A predetermined length by which the towel material A is fed out by the bar member 6d of the towel material feeding device 6 after the towel material A is pulled out by the clamp device 3. P: Pile woven portion A1 after the stopper device 4 is activated
The towel cloth pushing-down member 6c of the towel cloth feeding device 6 until it is locked at the stepped portion ALS of the boundary line AL.
The length of the towel cloth A that is fed by the rotary encoder 7 and measured by the rotary encoder 7. R: radius of the roller of the rotary encoder 7. θ: The rotation angle of the rotary encoder 7 when the towel cloth A is fed by the length P. Therefore, θ = 360 ° ×
P / 2πR.

Reference numeral 8 is a pile weave boundary detecting device,
On one workbench 2a, they are arranged at a distance S from the stopper device 4 on the side of the towel material B, and are fixed to the towel automatic sewing machine body 1 via a supporting member (not shown). The pile weave section boundary detection device 8 uses the detection value p described above.
Is to be operated when the next towel cloth A is unrolled, when the value exceeds the preset basic value U and a predetermined error ± σ, that is, when the length of the plain weave portion A2 or the pile weave portion A1 is abnormal. And the boundary line A between the plain weave portion A2 and the pile weave portion A1 of the towel material A fed onto the one workbench 2a by the sensor 8b provided in the detection portion 8a.
L is detected as shown in FIG. 11, and a detection signal is input to the microcomputer 10.

The microcomputer 10 includes a sensor 8
From the time when the detection signal from b is input, the length of the towel material A fed by the bar member 6d of the towel material feeding device 6, that is, the rotation speed of the pulse motor 6a is controlled, and the boundary line AL on the rear side of the pile woven portion A1 is controlled. The towel cloth A having a constant length L = (SP) is fed out from the position where the stepped portion ALS is detected, and the boundary line AL is temporarily stopped at the point Q as shown in FIG. In the state shown in FIG. 12, after the towel cloth A is drawn out by the clamp device 3 by the length Z as shown in FIG. 5, the bar material 6d of the towel cloth feeding device 6 draws out the length Y, and the stopper This corresponds to the operating state of the device 4.

When the boundary line AL reaches the point Q, the stopper device 4 is actuated to form the stop slit t on the towel cloth A to prevent the pile weave portion A1 from passing therethrough. Of course, the number of rotations of the pulse motor 6a is set so that when the boundary line AL reaches the point Q, the regular plain weave portion A2 of the towel cloth A is set at a position corresponding to the stopper device 4. After that, the towel cloth A is blocked by the plurality of towel cloth pushing-down members 6c of the towel cloth feeding device 6 from passing through the next pile weave portion A1 at the stop slit t as shown in FIG. Up to length P.

Next, the operation of the above embodiment will be described with reference to the flowcharts of FIGS. 7 to 12 and FIG. First, as shown in FIG. 7, the towel material A is pulled out by the length Z by the clamp device 3, and then the length Y is fed out by the bar member 6d of the towel material feeding device 6 as shown in FIG. AL is in a predetermined position (Q in Fig. 12)
The stopper device 4 is actuated by reaching the same position (point). Then, from the state where the stopper device 4 is activated,
The length until the step portion ALS of the boundary line AL is aligned with the stop slit t of the stopper device 4 by the plurality of towel fabric pushing-down members 6c of the towel fabric feeding device 6 as shown in FIG. 9 ( Normally, the value p detected by the rotary encoder 7 is read as the length P) (step 1). In step 2, the basic value U corresponding to the towel material A of the basic value setting means 12 is read.

Next, in step 3, the comparison means 11 compares the detected value p with the basic value U to determine whether or not an abnormality has occurred. That is, since there is a weaving error or a rejoining portion of the towel raw fabric B, the upper block 4a of the stopper device 4 is lowered onto the upper surface of the pile weaving portion A1 or the plain weave portion A2 having a length different from the specified length. The occurrence of abnormality is detected when the rotation angle θ of the rotary encoder 7 deviates from the set range. Specifically, the comparing means 11 determines whether or not the detected value p deviates from a preset basic value U and a predetermined range ± σ, and if it deviates, it is determined to be abnormal.

For example, when the upper block 4a is lowered onto the plain weave portion A2 longer than the specified length, the rotary encoder 7 rotates more than a set value, an abnormality is detected, and the upper block 4a is shorter than the specified length. When the rotary encoder 7 descends above the section A2, the rotary encoder 7 stops rotating below the set value, and an abnormality is detected. Furthermore, FIG.
As shown in 0, when the upper block 4a descends above the pile woven portion A1, the towel cloth pressing member 6c does not operate due to the resistance of the stopper device 4, and the rotary encoder 7 does not rotate the set angle, Abnormality is detected.

When an abnormality is detected in this manner, the process proceeds to step 4, the stopper device driving means 13 is operated, and the cylinder device 4c of the stopper device 4 is operated in the same way as shown in FIG. . Thereby, the stop slit t is opened so that the pile weave portion A1 can pass through. After the stop slit t is opened, the process proceeds to step 5, the pulse motor 6a is rotationally driven, and the towel material A is continuously fed by the bar member 6d of the towel material feeding device 6. On the other hand, when the towel cloth A is normal, the process proceeds to step 10 and the center (N / 2) of the plain weave portion A2 is cut by the cutting device 5. After the cutting, the program shifts to the normal program, and the cutting device 5 is restored.

In step 6, the next-order boundary line AL is detected. In this case, since the towel cloth A is fed after the abnormality in the length of the plain weave portion A2 or the pile weave portion A1 is detected, the plain weave portion is detected by the sensor 8b of the pile weave portion boundary detection device 8 as shown in FIG. The boundary line AL on the rear side of A2 is detected. In step 7, a certain length (L) of the towel cloth A is paid out. That is, the boundary line AL is shown in FIG.
Length until reaching point Q (same as in FIG. 8) L = (S-
Only in P), the towel material A is fed by the bar member 6d of the towel material feeding device 6. In step 8, the stopper device 4 operates. As a result, the upper block 4a of the stopper device 4 descends onto the plain weave portion A2, and the stop slit t is formed.

In step 9, a predetermined length (P) of the towel cloth A is drawn by the plurality of towel cloth pushing members 6c of the towel cloth feeding device 6. As a result, the towel material A is delivered by the towel material delivery device 6 until the stop slit t stops the step portion ALS of the boundary line AL in the aligned state. Towel cloth A
When the sheet material has been fed, the cutting device 5 cuts the central portion of the plain weave portion A2 of the towel material A, and the towel material feeding device 6 is returned to above the working space 2c.

The series of steps as described above are sequentially repeated to cut the original towel cloth B into a large number of towel cloths A. The towel material A cut by the cutting device 5 is released from the clamping by the mouthpiece 3a of the clamp device 3 and dropped into the space 2c to be collected. If there is an abnormality in the length of the plain weave portion A2 or the pile weave portion A1 due to a weaving error of the towel raw fabric B or a rejoining portion, the towel cloth A is cut into almost two sheets. Fabric A is
Remove from the sewing line.

[0029]

As can be understood from the above description,
ADVANTAGE OF THE INVENTION According to this invention, when cutting one towel cloth one after another from the long towel raw material which formed the pile weave part and the plain weave part by turns, weaving mistake in the length of a pile weave part or a plain weave part. Even if there is a towel roll with a roll or a towel roll that has a splicing part that is a connection part of the towel roll, the towel roll is continuously fed out without substantially stopping the cutting device, and the towel roll is removed. Since the cloth cutting operation can be automatically continued, the productivity and workability in the towel sewing factory can be significantly improved.

[Brief description of drawings]

FIG. 1 is a diagram showing a towel cloth cutting device according to an embodiment of the present invention.

FIG. 2 is a view showing a stopper device of the same.

FIG. 3 is a diagram showing the arrangement of the same components.

FIG. 4 is a similar operation explanatory diagram.

FIG. 5 is an explanatory view of the same operation.

FIG. 6 is an explanatory view of the same operation.

FIG. 7 is an explanatory view of the same operation.

FIG. 8 is an explanatory view of the same operation.

FIG. 9 is an explanatory view of the same operation.

FIG. 10 is a similar operation explanatory diagram.

FIG. 11 is an explanatory view of the same operation.

FIG. 12 is an explanatory view of the same operation.

FIG. 13 is a flowchart of the same.

FIG. 14 is a front view of the same towel raw material.

FIG. 15 is a side view showing the original towel cloth.

FIG. 16 is a diagram showing a towel cloth.

[Explanation of symbols]

1: Towel cutting device body, 2a: One workbench, 2b:
The other workbench, 2c: space, 3: clamping device, 3a:
Mouthpiece, 4: Stopper device, 5: Cutting device, 6: Towel material feeding device, 6a: Pulse motor, 6c: Towel material pressing member, 6d: Bar member, 7: Rotary encoder (feed length detecting means), 8: Pile weaving section boundary detection device, 8b: Sensor, 10: Microcomputer, 11: Comparison means, 12: Basic value setting means, 13: Stopper device driving means, 14: Switching valve, A: Towel cloth, A1: Pile weaving section , A2: plain weave part, AL: boundary line, ALS: step part, B: towel roll, p: detected value,
U: basic value, M: pile weave length, N: plain weave length, P: length, t: stop slit.

Claims (1)

[Claims] 1. A pile woven portion (A1) and a plain woven portion (A)
2) Intermittently pulling out approximately one towel cloth (A) from a long towel cloth (B) alternately woven, and then, a plain weave section (A2) and a pile weave section (A). A method of cutting a towel cloth by aligning a boundary line (AL) with A1) and cutting a plain weave portion (A2), including a towel cloth (A)
Feed length detecting means (7) for detecting the feed length required for aligning the boundary line (AL) and outputting the detection value (p)
And a basic value setting means (12) for setting a basic value (U) according to the towel cloth (A), and a detection value (p) by the feed length detection means (7) with respect to the basic value (U). A comparison means (11) for judging whether or not it is within a predetermined range, and when the detected value (p) is within a predetermined range with respect to the basic value (U), it is judged as normal and the plain weave portion (A2) is cut, and when the detected value (p) is not within the predetermined range with respect to the basic value (U), it is determined to be abnormal, and the plain weave portion (A2) is not cut and the raw towel cloth (B) is cut. Draw out, the next plain weave part (A2)
A method for cutting towel cloth, which comprises cutting.