JPH0115468B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method and apparatus for obtaining a bundle of linear objects of a constant length from continuous linear objects.

Conventional technology Conventionally, bundles of linear materials such as hollow fiber reverse osmosis membranes, hollow fiber ultrafiltration membranes, hollow fiber artificial kidneys, synthetic tatami mats, brushes, etc. have been made by forming at least one continuous linear material into a fixed length. It is made by cutting.

The method for making a bundle of linear objects is to wrap the continuously produced linear objects around a shrink frame, take out the skein, make a bundle of thick annular wire objects, cut it to an appropriate length, and then turn it into linear objects. A method for obtaining bundles of objects, and a method for obtaining bundles of linear objects by linearly pulling out continuously produced linear objects into appropriate lengths, cutting them, and accumulating them (Japanese Unexamined Patent Application Publication No. 1983-1999-
No. 171759) is known.

Problems to be Solved by the Invention In the former method, since the wires are wound around a shrinkable frame, there are problems in that the wires are bent and curled at the corners of the frame, and disturbances occur within the bundle of the annular wires.

The latter has the problem that it is not suitable for increasing the speed because the operations of linearly drawing out, grasping, cutting, and stacking linear objects are performed in batches, and the speed depends on the drawing speed.

In addition, in both cases, if a defect occurs in any part of a linear product that is continuously produced, even if the defect can be detected by some method, cutting and removing that part will cause the work to be stopped. There was a problem. For this reason, it is not possible to obtain a defect-free bundle from continuous linear objects containing defects, and it is inefficient to select only the linear objects with defects and remove them after forming the bundle by cutting them. It needed work.

In order to solve the above-mentioned problems, the present invention aims to provide a method and apparatus for obtaining a bundle of linear objects of a certain length.

Means for Solving the Problems In order to solve the above-mentioned problems, the method of the present invention involves cutting a bundle of annular linear objects consisting of at least one continuous linear object to a predetermined length. In order to obtain a bundle of linear objects, (a) a running continuous linear object is inspected for defects at any position, and a predetermined length is set as the set section length; (b) a set section length with no defects is determined. (c) The length of the section containing the defect is wound on a defective track that is close to the non-defective track and has substantially the same circumferential speed as the non-defective track. (d) forming a bundle of the prescribed number of circular wires on the good track; (e) forming a bundle of the above-mentioned non-defective and defective circular wires; This method is characterized by cutting the linear object that connects the two transversely at a transition point, and separately obtaining a bundle of good products and a bundle of defective products of a certain length and a specified number.

Further, the apparatus of the present invention is an apparatus for cutting a bundle of annular filaments consisting of at least one continuous filament to produce a bundle F' of filaments of a certain length, which includes: (a) a continuous filament; A defect detection means 1 for the linear object F provided at an arbitrary position on the running path of the linear object F; (b) A defect detection means 1 installed at a certain distance L from the defect detection means 1 and having a preset length setting. A non-defective truck 9 divided by a separator 11 having a circumferential length that is the same as the section length or an integral multiple of this length, and has transition gates at the same intervals as the set section length.
(c) a winding means 4 having a defective product track 10 and an automatic switching device 8; traverse means 2 provided immediately before the winding means 4, which transfers only the set section length containing defects to the defective track 10 and returns to the good track again; (d) the circular wire wound on the winding means 4; (e) the distance L between the defect detection means 1 and the winding means 4;
A set section length to which the detected defect belongs is set based on the relationship with the winding speed and the winding speed, and when the set section length arrives at the winding means 4, the traverse means 2
The present invention is characterized in that it comprises a calculating means 6 for giving an instruction to transfer the linear object F to the defective article track 10 by at least one predetermined section length.

That is, in the present invention, when the number of bundles of annular wires without defects wound on a non-defective track reaches a predetermined number, continuous movement is achieved by arranging a plurality of winding means and winding them. It becomes possible. The fully wound bundle of circular filaments on the winding means is moved from the winding means to the cutting means, and at the transition point (gate position) between the bundles of good and defective circular filaments, the cutting means Accordingly, it is also possible to cut the bundle of non-defective and defective annular wires, as well as the crossover wires, transversely, and take them out as a bundle of wires of a certain length.

EXAMPLES Next, the present invention will be described in more detail with reference to examples and drawings.

1 and 2 show an overview of the method and device of the present invention, in which a defect detection device 1, a traverse device 2,
3. The winding devices 4 and 5 are arranged at a certain distance L and L', and the defect signal indicating the defect of the linear object transmitted from the defect detection device 1 is sent to the winding devices 4 and 5.
A rotation signal indicating the rotational position of the traverse device 2 and 3 is input into the arithmetic unit 6, and the operation timing of the traverse devices 2 and 3 is determined by the arithmetic unit 6.

When the distance between the defect detection device 1 and the winding devices 4 and 5 is large, a support roll 7 for preventing deflection of the linear object is installed according to the distance.

Furthermore, defects in the running continuous linear object are detected by optical and electrical methods.

Next, traverse devices 2 and 3 that make it possible to distinguish between non-defective and defective products from a continuous linear object that is running.
The structure of the winding device 4 and the winding devices 4 and 5 will be described.

The traverse devices 2 and 3 carry out operations for uniformly winding the wire material F on the non-defective tracks of the winding devices 4 and 5, which will be described later, and transfer the set section length of the wire material F including defects to the defective product track 10. , and a return operation. Although any means can be used to obtain these two operations, FIG. 4 shows an example of a mechanism using a combination of gears and cylinders.

The traveling linear object is positioned by a guide 15. This guide 15 is pressed by a spring 16 against a shaft 17 with a rack gear. This pressing force must be sufficiently smaller than the force with which the cylinder 19 pushes out the guide 15. The guide 15 is the pinion gear 1
By forward and reverse rotation of 8, it moves over a certain distance _l6 . This moving distance _l6 corresponds to the interval between good tracks of the winding devices 4 and 5, which will be described later. cylinder 1
9 is for pushing out the guide 15 while compressing the spring 16 (moves to the left in FIG. 4).
For this reason, the guide 15 of the shaft 17 having a rack gear and the mounting portion of the spring 16 are structured so that the guide 15 can slide. The operation of transferring the set length of the running continuous linear object F containing defects to the defective product track 10 can be achieved by the cylinder 19 pushing out the guide 15 by a certain distance _l7 .

The winding devices 4 and 5 are shown in FIGS. 3-A and 3-B.
As shown in the figure, a non-defective track 9, a defective track 10, a separation body 11, and a fall prevention body 1 for linear objects F.
It has 2,13. Separation body 11, fall prevention body 1
2 and 13 are provided with at least one gate 14 to allow the transfer of linear objects.

As shown in FIG. 1, the winding device 4 and the winding device 5 are preferably arranged symmetrically with the winding axis of the winding device perpendicular to the running direction of the linear object. However, it is also possible to arrange the device 4 at the front and the device 5 at the rear, for example.

The tension of the running continuous linear object F can be made uniform if the ratio L'/W of the running width W of the linear object and the distance L' from the defect detection device 1 to the traverse devices 2 and 3 is sufficiently large. can. In addition, the phenomenon of increased running speed of the linear object that occurs when the continuous linear object F is stacked and wound up by the winding devices 4 and 5 and the winding diameter increases is caused by the This can be avoided by using a speed adjusting device (not shown) that changes the number of revolutions of the winding devices 4 and 5 while measuring the tension of the winding device, or a speed adjusting device (not shown) that uses a dancer roll between the distance L.

The operation when the set section length is equal to the circumference of the non-defective track 9 of the winding devices 4 and 5 is shown in Figures 5-A and 5.
This will be explained using Fig.-B and Fig. 5-C.

As mentioned above, the lengths of the set section lengths l ₁ , l ₂ , l ₃ , l ₄ , and l ₅ are equal to the circumferences of the good product track 9 and the defective product track 10. From the time when the transfer gates of the winding devices 4 and 5 come to the point of contact (referred to as the winding start point) between the running continuous linear object F and the good track 9, the lengths l ₁ , l ₂ , l ₃ are changed every rotation. ,... are determined.

Now, FIG. 5-A shows a state in which the defect detection device 1 detects that there is a defect in section length _l3 of the continuous linear object F that is running. The position of the guide 15 of the traverse device 2 at this time is at any position in section _l6 shown in FIG.

Next, consider a state in which the linear object F travels for one set distance (one rotation of the winding device). Since the section length _L1 is a good product, the guide 15 is on the non-defective track side at this point, and the section length _L1 is wound onto the non-defective track 9 as shown in FIG. 5-B. Furthermore, when the linear object F travels, it will be in the state shown in Fig. 5-C. In this state, the position of the transition gate 14 of the winding devices 4, 5 is below the winding start point. In accordance with the timing when the transition gate 14 reaches the winding start point,
Guide 15 by cylinder 19 shown in FIG.
Push out (move to the left in Figure 4) and move the ward l ₃
is transferred to the defective product track, and then transferred to the winding device 4.
When the cylinder 19 is moved back by a distance of section _l7 (moved to the right in FIG. 4) at the timing when the transition gate 14 reaches the winding start point, the guide 15
is pushed back by the spring 16, so that only the set length _l3 containing the defect can be wound onto the defective product track 10. In addition, the disadvantage is near the setting ward chief,
Or, if they are located side by side (position B in Figure 5-C), place the two set area lengths _l3 and _l4 in the defective product track 1.
The guide 15 is operated so as to wind it up to zero.

The timing at which the guides 15 of the traverse devices 2 and 3 start is determined by the arithmetic unit 6 described above.

FIG. 6 shows the shape of the bundle F' of the annular linear material wound up by the above operation. FIG. 7-A is an enlarged view of C (transfer gate 14). When the annular linear object F is wound up as shown in FIG. 7-B, a plurality of transfer gates 14 of the winding devices 4 and 5 are provided, and
The length of the interval between the transition gates is shortened. In this case, the set section length is not the circumference of the non-defective track, but the distance between the transition gates.

The winding method shown in FIG. 1 is a method of converging a plurality of running continuous linear objects F and winding the linear objects F while distinguishing between them on a non-defective track 9 and a defective track 10. Furthermore, in order to reduce the amount of wires wound on the defective product track, only the wires containing defects are transferred to the defective product track and wound out of the plurality of moving linear products. You can also do it.

It can also be applied to a method in which good and defective tracks are arranged for each unit of the moving linear object, and a traverse device is arranged to perform the above-described operation for each unit of the linear object.

As a next operation, when the winding device 4 in FIG. 1 becomes full, the winding device 4 and the winding device 5
are rotated synchronously, and by the automatic switching device 8,
The running continuous linear object F is transferred from the traverse device 2 to the traverse device 3. By this operation, the traveling continuous linear material F is transferred from the full winding device 4 to the empty winding device 5.

When the transfer of the linear object is completed, the winding device 4
A cutting blade is inserted between the winding device 5 and the winding device 5, and the linear object F passing from the winding device 4 to the winding device 5 is
Then, the winding device 4 on the full tube side is stopped. At this time, it is desirable that the end of the linear object coming out of the winding device 4 and the end of the linear object entering the winding device 5 be gripped by an arbitrary gripping mechanism.

A bundle of linear objects of a certain length is taken out from the winding device 4 which has stopped until the empty winding device 5 is filled with the linear objects F by the following operation.

As shown in FIG. 8, for example, after transferring the full tube winding device 4 onto the conveyor 21, in order to prevent the bundle F' of the annular wire material on the winding device from falling after being cut, a pressure roll 20 is placed in advance. Hold the bundle of circular linear objects and traverse the good quality circular linear objects 9
At the transition point C (position of the transition gate 14) from the defective product track 10 to the defective product track 10, the cutting blade is inserted so as to cross the bundle of the good product, the defective product annular linear object, and the linear object connecting the two. Cut a bundle of linear objects. The tip of the cut bundle F' of annular linear objects falls onto the conveyor 21. By cutting the bundle of annular wires in this manner at the transition point C (at the position of the transition gate 14), the tip of the bundle F' of the annular wires wound around the winding device 4 is The products are separated into bundles of good and defective products and fall onto the conveyor 21.

Next, by continuously moving the conveyor 21 and the winding device 4 in the same direction and at the same speed,
It is possible to take out a bundle F' of linear objects of a certain length in the longitudinal direction of the linear objects without disturbing the bundle while distinguishing between good products and defective products. The empty winding device 4 is returned to the winding position to prepare for the next changeover.

As described above, by employing the operation of the present invention, it is possible to obtain a certain bundle of linear objects by distinguishing them into good products and defective products from continuous linear products including defects.

Effects of the Invention The present invention can achieve the following effects in this manner.

It is possible to process a continuous long linear object into a thicker bundle of linear objects without any disturbance.

When continuous long linear objects contain defects, it is possible to distinguish between good and defective products at the stage of forming a bundle of linear objects, so it is not efficient to remove the defects after forming a bundle of linear objects. You can eliminate work.

The winding device is circular and has continuous rotational motion, so high speed is possible. This method can be fully mechanized.

The present invention can be widely used in the field of continuously manufacturing bundles of linear objects of a constant length.

Such fields include hollow fiber reverse osmosis membranes, hollow fiber ultrafiltration membranes, hollow fiber artificial kidneys, synthetic tatami mats, brushes, and the like.

[Brief explanation of drawings]

1 and 2 are a plan view and a side view showing the method and apparatus of the present invention. Figure 3-A is a front view of the winding device, and Figure 3-B is the X-X of Figure 3-A.
4 is a side view of the traverse device, 5-A, 5-B, and 5-C are side views showing the running state of a linear object, and 6 is a side view of the traverse device. A front view showing how one linear object is wound up, Figure 7-A is a perspective view showing details of transition points, and Figure 7-B shows how a linear object with multiple transition points is wound up. Perspective view,
FIG. 8 is a side view of equipment for taking out a straight bundle of constant length from a bundle of rolled-up annular wires. 1... Defect detection device, 2, 3... Traverse device, 4, 5... Winding device, 6... Arithmetic device,
7... Support roll, 8... Automatic switching device, 9
... Good product truck, 10 ... Defective product truck, 1
1... Separation body, 12, 13... Falling prevention body, 14
...Transition gate, 15...Thread guide, 16...
Spring, 17...Shaft, 18...Pinion gear, 1
9... Cylinder, 20... Presser roll, 21
...conveyor, F... linear object, F'... bundle of linear objects.

Claims (1)

[Claims] 1. When cutting a bundle of annular linear objects consisting of at least one continuous linear object to obtain a bundle of linear objects with a preset length, (a) traveling; A continuous linear object is inspected for defects at any position, and a predetermined constant length is set as the length of the section; (b) The length of the set section with no defects has a circumference that is the same as that length or approximately the same as an integral multiple of that length. (c) The set length including the defect is transferred without cutting to a defective track that is close to the non-defective track and has substantially the same circumferential speed as the non-defective track, and (d) Form a specified number of bundles of circular wires on the non-defective track, and (e) cut the bundles of the above-mentioned non-defective and defective circular wires, as well as the wires connecting the two, transversely at the transition point. A method for obtaining a bundle of linear objects of a certain length, characterized in that a bundle of good products of a certain length and a specified number of wires and a bundle of defective products are obtained separately. 2 Cut a bundle of circular wires consisting of at least one continuous wire to create a bundle of wires of a certain length.
In the apparatus for manufacturing F', (a) a defect detection means 1 of the linear object F provided at an arbitrary position on the running path of the continuous linear object F; (b) a fixed distance L from the defect detection means 1; The zone is installed at a predetermined length, and is divided by a separator 11 having a predetermined length as a predetermined zone length, and having a circumference that is the same as this length or an integral multiple of this length, and has a transition gate at the same interval as the predetermined zone length. Good truck 9
(c) a winding means 4 having a defective product track 10 and an automatic switching device 8; traverse means 2 provided immediately before the winding means 4, which transfers only the set section length containing defects to the defective track 10 and returns to the good track again; (d) the circular wire wound on the winding means 4; (e) the distance L between the defect detection means 1 and the winding means 4;
The set section length to which the detected defect belongs is determined from the relationship with the winding speed and the winding speed, and when the set section length arrives at the winding means 4, the traverse means 2
A method for obtaining a bundle of linear objects of a constant length, which comprises a calculating means 6 which gives an instruction to transfer the linear object F to a defective product track 10 by at least one predetermined section length.