Manufacturing method and manufacturing device for bundle product

Abstract

A manufacturing method for a bundle product (13) comprises: a step for inspecting a plurality of traveling threads (10) by a measurement / inspection head (20) such as a digital camera; a step for winding the threads (10) around a reel (23); and a step for cutting the wound threads (12) by a cutter (40) to obtain the bundle product (13). A measurement / inspection control mechanism (21) such as an image inspection system finds the total surface area of the traveling threads (10) on the basis of the result of the inspection by the measurement / inspection head (20). A winding and collection control mechanism (24) continues winding until the total surface area of the threads (12) wound around the reel (23) exceeds a standard value. The thread (10) is a hollow fiber. A hollow fiber membrane bundle (13) having a total surface area exceeding the standard value can be obtained by this method. The hollow fiber membrane bundle (13) is incorporated in a module for filtering water. This module has sufficient filterability.

Description

technical field [0001] The present invention relates to a method and an apparatus for manufacturing a bundle-shaped product obtained by collecting and winding a yarn continuously running in a longitudinal direction while adjusting the winding amount so as to finally obtain a predetermined amount or more. Background technique [0002] Threads such as fibers, optical fibers, and hollow fiber membranes (hereinafter sometimes simply referred to as "threads") have been used as thread products alone or as final products manufactured with thread as the main component. Utilize and effectively use in various fields and purposes. In particular, many wire bundles obtained by bundling a plurality of wires can greatly increase the performance as a product compared with the case of a single wire, and the wire bundle itself is mainly used as a bundle product or as a bundle product. It is widely used in the final products manufactured from the constituent parts. [0003] Here, as the thre...

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Problems solved by technology

[0017] However, in the methods of Patent Documents 1 and 2, measurement and inspection are automatically carried out while the thread is running, thereby eliminating the need for professional workers and cutting off defective parts. However, these methods assume that one thread runs on one line condition

That is, when two or more threads are running on one thread, if only the defective portion of one thread is cut off, the length of the other threads will change, so it cannot be wound on the same rotating bobbin

Assuming that it is to be wound on the same bobbin no matter what, when cutting off a defective part from a certain thread, it is sufficient to cut off the normal part at the same length from a thread that does not contain defects produced at the same time, but in In this method, manufacturing yield decreases

In addition, Patent Documents 1 and 2 do not propose a method of correcting the final management amount generated in the hollow fiber membrane bundle after cutting off the defective portion.

[0018] In Patent Document 3, although the paper sheet is not manipulated by the thread, the length of the cut-off part is obtained from the roll diameter before and after the removal of the defective part, and the winding amount is corrected so that the length of the paper sheet included in the final product is Become a specification or so

However, like Patent Documents 1 and 2, it is still difficult to apply the method in the case of simultaneously manufacturing a plurality of products with one line.

In addition, the management amount in Patent Document 3 is only the length of the paper sheet, but when manufacturing a high-function final product such as a hollow fiber membrane bundle, as mentioned above, the outer diameter, surface area, weight, etc. must also be managed

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