JPS62171710A - Method and device for bundling strings - Google Patents

Abstract

PURPOSE:To eliminate the variance of the product quality, to increase the production efficiency, and to stably bundle strings by using an endless belt to hold the strings. CONSTITUTION:The string consisting of hollow yarn bundles 1 arranged in parallel is supplied to a string bundling device. The hollow yarn bundle 1 travels on the endless belt 2 as a belt means at the same speed as that of the belt 2, and moves on while being throttled by a throttling jig 3 and gradually bundled. After being passed through the throttling jig 3, the belt 2 is rolled just like the laver an MAKIZUSHI (seasoned rice rolled in laver). Then the hollow yarn bundles 1 bundled by the jig 3 are finally bundled by a bundling nozzle 4 into an appropriate shape, and the obtained material is packed into a case 5. When the tip 9 of the hollow yarn bundle 1 reaches a specified position, the belt 2 is temporarily stopped, the hollow yarn bundle 1 are tied by an adhesive tape 14, etc., and the hollow yarn bundle 1 is cut by a cutting means 16.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method and apparatus for more closely converging threads made of a large number of fibrous materials. The present invention relates to a method and apparatus for converging hollow fibers for producing a hollow fiber type fluid separation device subjected to fluid separation.

The fluid separation device has a fluid component! II film form: 1,000N,
There are tubes, hollow fibers, etc. Among them, hollow fibers have many advantages such as the membrane area is large for the size of the case, the fluid separation device itself is compact, and it is easy to operate. A fluid separator is used to separate the threads from the rice.

The manufacturing process for a hollow fiber m-fluid separator is: ■ Making a bundle of hollow fibers of a predetermined number, ■ Storing this in a plastic case, and ■ Using side fat such as urethane to attach the hollow fibers to both ends of the case. This consists of: fixing with grease, (1) cutting both ends of this to form a hollow fiber opening, and (2) fixing a fluid distribution plate (herator) to this.

[Prior art]

Conventionally, the method of bundling hollow fiber bundles and storing them in cases has been conventional, but this method tends to result in variations in product quality, and has low production efficiency, making it desirable to develop a new method. . In particular, it has been strongly desired to efficiently produce a compact bundle for storing in a case containing a large number of hollow fiber bundles.

[Object and structure of the invention]

The present invention aims to improve the conventional drawbacks and provide a method and device for converging yarns with high production efficiency and stability, especially for hollow fibers that are required to house hollow fiber bundles at high density. The objective is to improve the method of converging hollow fiber bundles, which is part of the manufacturing process of mold fluid separation devices.

The purpose? :As a result of intensive research to achieve this goal, we found that it is extremely difficult to grip yarn using an endless belt grip.
As a result, the present invention was created by developing G+.

That is, the present invention is a method for bundling threads made of a large number of fibrous materials, comprising:
The yarn is gripped by narrowing a part of the traveling belt means into a cylindrical shape, and in this state the yarn is moved a predetermined distance together with the belt means, and then the yarn is gripped by the belt means. A method of converging yarns characterized by releasing the yarn.

as well as A means for supplying narrow yarn from a large number of fibrous materials.

Yarn that grips the yarn by being squeezed into a cylindrical shape and in that state is equipped with a belt means that can release the grip on the welded yarn after traveling a predetermined distance mfN with the yarn. Row focusing device.

I love something that provides The present invention will be explained in more detail below.

Uchi 1 The yarn used in the present invention may be any yarn as long as it is composed of a large number of fibers, but it is more effective to use a yarn consisting of a large number of hollow fibers. ,
In particular, a hollow iλ tube having selective permeability for separating vfE bodies is preferable.

Generally, when forming a bundle of hollow fibers with a predetermined number.

This hollow fiber bundle is obtained by a convergence method.The cross-sectional shape of the entire hollow fiber bundle may be flat, round, or square rod-shaped. In order to fill the case with the hollow fiber bundle, the cross-sectional shape of the hollow fiber bundle should match the cross-sectional shape of the inner surface of the case to be stored and partially filled, and if the cross-sectional shape is circular, the diameter should be Also, if the cross-sectional shape is elliptical or rectangular, the major and minor axes or the vertical and horizontal sizes are the inner dimensions of the case!
You will need a fist that is equal to or smaller than 1".

If the above conditions are satisfied at the stage of forming the hollow fiber bundle, it will be possible to fill the same case, but if the above conditions are not met, the shape of the hollow fiber bundle must be modified to satisfy the above conditions. There must be,.

Since it is difficult to modify the shape of the hollow fiber bundle using a machine, it has usually been done almost manually.

Historically, the normal method was to slowly and carefully fill the manually corrected hollow fiber bundle into a cylindrical plastic case. Because it is highly dependent on the individual techniques of famous monks, not only the quality of the raw bamboo shoots, but also the quality of the products, cannot help but be uneven.

The present invention solves the above problems.

FIG. 1 is a front view showing the structure of a yarn converging device which is an embodiment of the present invention, and FIG. 2 is a plan view showing a hollow fiber bundle 1 as a yarn, an endless belt 2 as a belt means, and an aperture. The figure shows a state in which the liquid is focused into an appropriate shape by a scraping jig 3 as a means and a focusing nozzle 4 as a nozzle means and filled into a case 5. The endless belt 2 is driven by rollers 6.7 or 8. Further, the arrows in the figures indicate the moving direction of the hollow fiber bundle, belt, or roller.

That is, the hollow fiber bundle 1 is formed from a bundle of hollow fibers aligned parallel to y.
The yarn bundle l is supplied to the apparatus of the present invention, and the yarn bundle l advances on the endless belt 2 at the same speed as the endless belt 2 and 1b while being squeezed by the endless belt 2 by the squeezing jig 3 and gradually converged in degrees Celsius. I'll go.

The initial method of supplying the hollow fiber bundle 1 is as follows.

The hollow fiber bundle l may be gripped by a robot and brought near the drawing jig 3, or the endless belt 2 may be placed behind the roller 8.
It is also possible to install a belt conveyor that rotates at the same speed as the roller 8 and operate it in synchronization with the roller 8.

As the hollow fiber bundle l is converged from a wide state, there is a bulge in the height direction, but the bulge is large,
If the endless belt 2 becomes entangled at the interlocking part, it is possible to prevent the bundled yarn 1 from bulging by installing a presser solar or guide lO as a pressing means above the yarn 1 at a position where the bundled yarn 1 swells in the height direction. By passing through the 1 degree squeeze A3, the endless belt 2 becomes rolled in a state similar to seaweed according to Toshinori.

After a long time, the first hollow fiber bundle L, which has been focused by the drawing jig 3, is passed through the focusing nozzle 4. Naturally, the shape of the conventional nozzle 4 needs to be designed appropriately for the inner shape of the case 5 into which the yarn bundle 1 is filled. The tool 3 and the focusing nozzle 4 may be integrated, or the aperture jig 3 may also serve as the focusing nozzle 4.

The yarn bundle 1 filled in the case 5 needs to be cut to an appropriate length, but this is done at the tip 9 of the hollow fiber bundle 1.
Endless belt 2 is inserted into the gap when the
is temporarily stopped, the hollow fiber bundle 1 is fixed at a predetermined position between the focusing nozzle 4 and the case 5 with an adhesive tape 14, etc., and a cutting means such as a knife is used to leave the adhesive tape at both ends after cutting. This is achieved by cutting the endless belt 2 at a point 16. As a means for temporarily stopping the endless belt 2, a switch or the like equipped with a detection means 12 using light at the position of the tip 9 can be used. Furthermore, when cutting is completed, the case filled with the hollow fiber bundle is removed, the empty case is placed in a predetermined position, and the above operation is automatically repeated.

When the endless belt 2 is wound by the drawing jig 3, if the vertical relationship of the overlapping portion of the endless belt 20 changes during operation, a part of the hollow fiber bundle l will be drawn into the endless belt 2.
It is undesirable for the hollow fibers to be damaged if they are caught between them. To prevent this, guide pins or the like may be installed before and after the drawing jig 3 to make the overlapping direction of the endless belt 20 constant, or holes may be formed in the drawing jig 3 at right angles to the traveling direction of the endless belt 2. It is also possible to make the overlapping direction of the endless belt 2 constant by opening the belt and applying pressure from there. In such a state, the endless belt 2 grips the hollow fiber bundle 1, and since the endless belt 2 advances while gripped, the hollow fiber bundle 1 also advances at almost the same speed as the endless belt 2.

The fibers then proceed to the focusing nozzle 4, and the exit portion of the focusing nozzle 4 needs to have an appropriate shape to match the hollow fiber bundle 1 and the inner shape of the case 5. Note that the focusing nozzle 4 is
It is responsible for determining the final shape of the hollow fiber bundle 1, as well as inverting the endless belt 2 that has been wound up to that point at the tip of the focusing nozzle 4 and spreading it out into a planar shape.

Fibrous materials preferably used in the present invention include:
Hollow fibers with selective permeability are used for fluid separation such as liquid separation and gas separation, and specific examples include liquid separation such as dialysis, reverse immersion 6° ultra-e filtration, *Those with selective permeability suitable for gas separation such as g-conversion are mentioned. The fibrous material may also be a hollow fiber used as a support to which a coating with good selective permeation is applied. Hollow fibers which are particularly passed through the method of the present invention are for body fluid treatment such as hemodialysis, hemoglobin filtration, plasma aliquots, condensate treatment 1 oxygenator, etc.

The material for such hollow fibers is not particularly limited, but in the case of body fluid treatment, for example, cellulose, cellulose ester, polyethylene-vinylfurfur comonomer, polymethyl methacrylate, polysulfone,
Examples include polyether sulfone and polyacrylonitrile. 1 In addition, the cross-sectional shape of the patterned hollow fibers is usually circular, but it is also possible to use irregular cross-sections, such as those with fins on the outside or those with two hollow fibers connected at the outer periphery. There may be. Furthermore, the hollow fibers may be crimped, and other thin fibrous materials may be spirally wound around the outer periphery.

Furthermore, the hollow fiber navy blue has an inner diameter of 10 to 1.000μ,
C is preferably in the range of 20 to 300μ, and the wall thickness is 3 to 300μ, more preferably 5 to ]θ0μ, especially 6
Those in the range of ~30μ are preferred.

The yarn of the present invention has such a fibrous material of 2. (100~20
A range of 0.000 lines, more preferably 5,000 to 20,000 lines, is preferable because the clearing effect can be advantageously exhibited.

The belt means required in the present invention may be any belt means as long as it is suitable for the purpose of the invention.4. However, generally a rubber belt or a woven belt is preferably used. Specific examples of this include a fabric layered rubber belt, such as a structure in which cloth with contact rubber attached to the screen is laminated and bound with cover rubber, or a structure in which cover rubber is provided on both sides of a single layer of cloth.

Examples include steel cord rubber belts with cover rubber on both sides of the steel cord layer, rubber belts made only of rubber, and woven fabric belts made of woven fabric coated or impregnated with resin. A cloth belt or the like is preferred.

The material of the cover rubber is not particularly limited, but natural rubber, impregnated rubber, butyl rubber, neoprene rubber, NBR, SBR, urethane, silicone, etc. are used.As the resin for coating or impregnation, urethane, silicone, epoxy etc. etc. are practical. In addition, as for the form of the belt means, it is preferable that a belt on a flat plate forms an endless ring, and it is practical that the thickness is 0.5 to 2 cm and the width is 4 to 20 cm + 4 cm. be.

〔Effect of the invention〕

According to the present invention, it is possible to automatically and tightly bundle a bundle of fibrous materials such as hollow fibers, and to automatically fill the bundle into a case and stop it at an appropriate position. Then, the operation of cutting at a predetermined location can be repeated automatically, thereby making it possible to obtain a straight bundle with substantially equal fiber lengths very stably and easily. Furthermore, it is also possible to automatically take out the case filled with the hollow fiber bundle and supply the case with nitrogen. .

Therefore, the present invention dramatically innovates the conventional method, greatly reduces labor in the manufacturing process, significantly improves productivity,
Furthermore, it is an epoch-making device that brings about stabilization of quality. FIG.

1 is a hollow fiber bundle, 2 is an endless belt, 3 is a drawing jig,
4 is a focusing nozzle, 5 is a case, and 6°7.8 is an endless belt drive roller. 9 is the end m? of the hollow fiber bundle filled in the γ-space. : Indicates.

License applicant: Houdai Co., Ltd. 1.

Claims (30)

[Claims] (1) A method of converging threads made of a large number of fibrous materials, in which the threads are gripped by squeezing a part of the running belt means into a cylindrical shape, and in that state, the threads are bundled into the belt. A method for converging yarns, characterized in that the yarns are released from being gripped by the belt means after the yarns have been moved a predetermined distance together with the belt means. (2) The yarn converging method according to claim 1, wherein the belt means is an endless belt means. (3) The yarn converging method according to claim 1 or 2, wherein the belt means is narrowed by running the belt means together with the yarn inside a cylindrical narrowing means. (4) The yarn gathering method according to any one of claims 1 to 3, wherein the yarn is substantially pre-focused before entering the squeezing means together with the belt means. (5) Before the yarn enters the squeezing means together with the belt means, the yarn is pressed toward the belt means by a pressing means located on the opposite side of the belt means. The yarn bundling method according to any one of paragraphs. (6) Claims 1 to 3, wherein the yarn is moved within the nozzle means while being substantially held by the belt means.
The yarn bundling method according to any one of Item 3. (7) After passing through the nozzle means, the running direction of the belt means is changed to the opposite side of the yarn, thereby opening the narrowed belt means and releasing the grip of the yarn by the belt means. A yarn bundling method according to any one of claims 1 to 6. (8) Immediately after passing through the nozzle means, the running direction of the belt means is changed by 90 degrees or more to the opposite side of the yarn to release the grip on the yarn. The yarn convergence method according to any one of the above. (9) The yarn bundling method according to any one of claims 1 to 8, wherein the belt means is driven by a driving means to travel. (10) The yarn bundling method according to any one of claims 1 to 9, wherein the belt means is a rubber belt or a woven fabric belt means. (11) The yarn bundling method according to any one of claims 1 to 10, wherein the predetermined distance is 10 to 200 cm. (12) Claims 1 to 11, wherein the yarn bundle after being released from the grip by the belt means is stored in a cylindrical case, and the yarn bundle is cut outside the container. The yarn bundling method according to any one of. (13) After storing the yarn bundle in the case, the belt means temporarily stops running, and the yarn bundle is placed at a predetermined position between the grip release position and the case entrance. After wrapping the adhesive tape member, cutting the yarn bundle,
The yarn bundling method according to any one of claims 1 to 12, wherein running of the belt means is restarted after moving the bundle together with the case. (14) When the adhesive tape member is wound and the thread is cut, the yarn bundle is cut so that the adhesive tape member remains on the cut threads on both sides. Yarn convergence method. (15) Detecting that the yarn bundle is stored in a predetermined position in the case using a contact type or non-contact type detection means using light, and temporarily stopping the running of the belt means. A yarn bundling method according to any one of claims 1 to 14. (16) By providing guide pin means before and after the throttle means and/or by making a hole in the throttle means perpendicular to the axial direction and introducing compressed gas therein, 16. The yarn converging method according to claim 1, wherein the overlapping direction of the belt means is made constant. (17) Claim 1, wherein the fibrous material is a hollow fiber.
The yarn bundling method according to any one of items 1 to 16. (18) Claims 1 to 17, wherein the hollow fiber has a fluid separation function suitable for liquid separation or gas separation.
The yarn bundling method according to any one of paragraphs. (19) The hollow fiber is used for hemodialysis, hemofiltration, plasma separation,
The yarn convergence method according to any one of claims 1 to 18, which is used for blood component separation, condensate treatment, body fluid treatment such as artificial lungs. (20) The yarn bundling method according to any one of claims 1 to 19, wherein the yarn comprises 2,000 to 200,000 hollow fibers. (21) The hollow fiber has an inner diameter of 10 to 1,000μ, 3 to 3
The yarn converging method according to any one of claims 1 to 20, which has a wall thickness of 00 μm. (22) The yarn bundling method according to any one of claims 1 to 21, wherein the hollow fiber has a fin portion extending in the longitudinal direction on its outer surface. (23) A means for supplying a thread consisting of a large number of fibrous materials, and gripping the thread by squeezing it into a cylindrical shape, and gripping the thread after traveling a predetermined distance with the thread in that state. 1. A yarn converging device characterized by comprising a belt means capable of releasing the . (24) The apparatus according to claim 23, wherein the belt means is an endless rubber belt or woven belt means that can be run by a drive means. (25) The apparatus according to claim 23 or 24, comprising a cylindrical constriction means that can be constricted into a cylindrical shape by running the belt means inside. (26) The apparatus according to any one of claims 23 to 25, comprising a nozzle means for causing the thread to pass through the belt means holding the thread. (27) Claims 23 to 26, wherein the belt means, after passing through the nozzle means, can change the running direction to the opposite side of the yarn and release the grip on the yarn. The device described in any of the above. (28) A contact type or non-contact detection means using light for detecting that the yarn bundle whose grip has been released is further moved and stored in the cylindrical case, and correspondingly the belt Claims 23 to 27, comprising means for temporarily stopping the running of the means.
Apparatus according to any of paragraphs. (29) The device according to any one of claims 23 to 28, further comprising means for wrapping an adhesive tape member around the yarn bundle at a predetermined position between the grip release position and the case entrance. (30) The device according to any one of claims 23 to 29, comprising means for cutting the yarn bundle at or near the position where the adhesive tape member is wound.