JP2023181825A - Yarn processing machine - Google Patents

Abstract

To easily remove a yarn connection portion mixed into a winding package.SOLUTION: A machine base control device 5 of a false twisting machine 1 performs the following processing when it is determined that switching information showing switching of a yarn feed package is acquired by a yarn detection sensor 24. The machine base control device 5 causes a winding device 19 to execute mixing information recording processing for recording mixing information showing mixing of a knot portion K into a winding package Pw3a (predetermined winding package) in the forming at the time of the occurrence of the yarn feed package switching. An information management part 110 controls an auto doffer 10 (or cutter 27), cuts a yarn Y at the timing of mixing the knot portion K into a surface part of the winding package Pw3a, thereby finishes the forming of the winding package Pw3a in the winding device 19.SELECTED DRAWING: Figure 7

Description

The present invention relates to a yarn processing machine.

Patent Document 1 discloses that the yarn unwound from a yarn supply package (described as a supply bobbin in Patent Document 1) formed by winding yarn around a yarn supply bobbin is processed and wound onto a winding bobbin. , an apparatus (yarn processing machine) for forming a wound body (winding package) is disclosed. The yarn processing machine is configured to be able to support two yarn supply packages corresponding to one winding bobbin. In such a yarn processing machine, when the terminal end of the yarn included in one of the two yarn feeding packages and the starting end of the yarn included in the other are knotted (connected), It is possible to uninterruptedly supply yarn from the other side after the first one is empty. Specifically, immediately after the supply of yarn from one of the yarn supply packages is finished, the knotted portions (yarn connection portions) of the two yarns are pulled, so that the yarn is unwound from the other yarn supply package. begins to be This allows the yarn to be fed without interruption.

Special Publication No. 2003-526584

In the field of yarn processing, various improvements have been made to improve productivity and product quality. The inventor of the present application has been conducting extensive research in order to develop a thread processing machine that has new added value that has not existed before. One of the problems is that when the above-mentioned yarn connection portion is mixed into a certain winding package, the grade of the winding package is degraded. Therefore, the following contamination avoidance processing can be considered as a countermeasure. Contamination avoidance processing is to obtain information on the timing at which the yarn connection part may be mixed into the winding package by some means, and by completing the formation of the winding package at a predetermined timing, the yarn connection part is not mixed into the winding package. This is to avoid contamination. However, depending on the timing of the contamination avoidance process, yarn may be deposited in the inner layer of the winding package formed next to the winding package (the part of the yarn layer included in the winding package that is radially close to the winding bobbin). There is a risk that the connected parts may be mixed in unintentionally. It is virtually impossible to remove the thread connections that have become mixed into the inner layer of the wound package.

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to easily remove a yarn connection part that gets mixed into the winding package from the winding package.

A yarn processing machine according to a first aspect of the present invention is a yarn processing machine configured to be able to process yarn unwound from a yarn supply package and wind it onto a winding bobbin, wherein the first yarn supply package serves as a first yarn supply package. The yarn package is configured to be capable of holding a yarn package and a second yarn supply package as the yarn supply package, which is different from the first yarn supply package, and the starting end of the yarn included in the first yarn supply package. a yarn supplying package holding section configured to be able to supply the yarn without interruption when a yarn connection portion is formed by connecting the end portion of the yarn included in the second yarn supplying package; It is possible to acquire switching information indicating the occurrence of yarn supply package switching when the unwinding of yarn from the first yarn supply package is completed, the yarn connecting portion begins to move, and the unwinding of yarn from the second yarn supply package begins. a winding device configured to be able to wind the yarn around the winding bobbin to form a winding package; and a winding device configured to be able to cut the yarn before being wound around the winding bobbin. a recording section configured to be able to execute a contamination information recording process for recording contamination information indicating contamination of the yarn connection portion into the winding package, and a control section, the control section comprising: , when the information acquisition unit determines that the switching information has been acquired, controls the recording unit to record the information to the predetermined winding package that is the winding package being formed when the yarn feeding package switching occurs. By executing the mixing information recording process for indicating the mixing of the yarn connecting portion and controlling the cutting section to cut the yarn at a timing when the yarn connecting portion is mixed into the surface layer portion of the predetermined winding package. , characterized in that formation of the predetermined winding package in the winding device is terminated.

The surface layer portion means a portion that can be easily removed from the predetermined take-up package and has a short distance from the outer peripheral surface of the predetermined take-up package in the radial direction of the predetermined take-up package. In the present invention, the yarn connecting portion can be intentionally mixed into the surface layer of a predetermined wound package. As a result, by simply untying a small amount of yarn contained in the surface layer of the formed predetermined wound package, it is possible to find and pull out the yarn connection portion that has been intentionally mixed in the surface layer. Furthermore, by checking the recorded contamination information, it is possible to reliably distinguish between the predetermined winding package and other winding packages. Therefore, the yarn connection portion that gets mixed into the winding package can be easily removed from the winding package.

A yarn processing machine according to a second aspect of the invention is the yarn processing machine according to the first aspect, wherein the recording section includes a marking section configured to be able to perform a marking operation of attaching a mark indicating the contamination information to the winding package. When the control unit determines that the information acquisition unit has acquired the switching information, the control unit controls the marking unit to perform the marking operation on the predetermined winding package, thereby recording the contamination information. It is characterized by executing processing.

According to the present invention, a predetermined winding package and a winding package to which no mark is attached can be easily distinguished by appearance.

In the yarn processing machine of a third invention, in the second invention, the marking section includes the winding device, and the winding device rotates the winding package around a central axis of the winding package. a traverse guide for traversing the yarn; a guide drive unit configured to reciprocate the traverse guide along the axial direction of the winding package; a traverse section including a traverse section, the control section controls the rotation drive section to rotate the take-up package, and controls the traverse section to move the traverse guide to a predetermined position in the axial direction. The winding device is characterized by causing the winding device to perform the marking operation by stopping the winding device at the position.

In the present invention, so-called stick winding can be performed on a predetermined winding package. Therefore, the marking operation can be performed using simple means.

In the yarn processing machine according to a fourth aspect of the invention, in any one of the first to third aspects, the recording section has a storage section configured to be able to store information, and the individual information of the predetermined winding package. and the contamination information are stored in the storage unit in association with each other, thereby executing the contamination information recording process.

In the present invention, a predetermined winding package can be distinguished from other winding packages by checking the information stored in the storage section.

A yarn processing machine according to a fifth aspect of the present invention is a yarn processing machine according to any one of the first to fourth aspects, wherein the predetermined winding package that has been formed in the winding device and a new winding bobbin as the winding bobbin are provided. The bobbin changing section is configured to be replaceable and configured to be able to thread the new winding bobbin, and the control section controls the bobbin changing section after the predetermined winding package is formed. the predetermined winding package and the new winding bobbin are exchanged, and the new winding bobbin is caused to thread the thread, and the winding device is controlled to wind the thread onto the new winding bobbin. It is characterized by

In the present invention, even after the yarn is cut by the cutting section, the wound package can be continuously formed without stopping the operation of the yarn processing machine.

A yarn processing machine according to a sixth aspect of the invention is the yarn processing machine according to any one of the first to fifth aspects, wherein the information acquisition section is configured to determine whether the yarn is unwound from either the first yarn supply package or the second yarn supply package. an unwinding package detector configured to be able to detect whether the yarn is being unwound from the first yarn supply package, The present invention is characterized in that information indicating that the yarn package has switched to a state in which the yarn is unwound is acquired as the switching information.

In the present invention, since the unwinding package detection section can directly detect yarn feeding package switching, the accuracy of the execution timing of the forming end process can be increased.

A yarn processing machine according to a seventh aspect of the present invention is a yarn processing machine according to any one of the first to fifth aspects, wherein the information acquisition section includes a yarn connected portion detection section capable of detecting the yarn connected portion located at a predetermined position; The yarn connecting portion detection unit is characterized in that the yarn connecting portion detecting unit acquires information indicating that the yarn connecting portion has started to move as the switching information.

In the present invention, since the movement of the thread connection part can be directly detected by the thread connection part detection section, the accuracy of the execution timing of the formation end process can be increased.

FIG. 1 is a block diagram showing the electrical configuration of yarn processing equipment including a false twisting machine according to the present embodiment. FIG. 2 is a side view of the false twisting machine. FIG. 2 is a schematic diagram showing the false twisting machine developed along the yarn path. FIG. 3 is an explanatory diagram showing a processing mode selection screen of the false twisting machine. (a) to (c) are graphs showing the relationship between yarn amount and time in the conventional processing mode. 7 is a flowchart showing a procedure for replacing a winding bobbin when yarn supply package switching occurs. (a) to (c) are graphs showing the relationship between yarn amount and time in the processing mode for forming a package containing knots. (a) is a schematic diagram showing a winding package, and (b) is an explanatory diagram showing information regarding the rank of the winding package. FIG. 7 is a schematic diagram of a false twisting machine according to a modification.

(Summary of yarn processing equipment)
Next, embodiments of the present invention will be described. An outline of a yarn processing equipment 100 including a false twisting machine 1 (described later) according to the present embodiment will be described with reference to the block diagram of FIG. 1. As shown in FIG. 1, the yarn processing equipment 100 includes a plurality of false twisting machines 1 (yarn processing machines of the present invention) and a management device 101. The plurality of false twisting machines 1 are arranged, for example, along a predetermined machine machine longitudinal direction (see FIG. 2, etc.). Each false twisting machine 1 is configured to be capable of false twisting yarn Y (see FIG. 2, etc.) made of synthetic fibers such as polyester and nylon (polyamide fiber). The yarn Y is, for example, a multifilament yarn consisting of a plurality of filaments (not shown). As will be described later, each false twisting machine 1 processes the yarn Y supplied from the yarn supplying section 2 in the processing section 3, winds it onto a winding bobbin Bw attached to the winding section 4, and winds it into a package. It is configured to form Pw. Each false twisting machine 1 is controlled by a machine control device 5, which is a computer device provided in each false twisting machine 1.

The management device 101 is a host computer for comprehensively managing information acquired by a plurality of machine control devices 5. The management device 101 includes a management input section 101a (for example, a keyboard), a management output section 101b (for example, a display), and a management storage section 101c (for example, a hard disk). A combination of the management device 101 and the plurality of machine control devices 5 is the information management section 110 of this embodiment.

(Overall configuration of false twisting machine)
Next, the overall configuration of the false twisting machine 1 will be explained with reference to FIGS. 2 and 3. FIG. 2 is a side view of the false twisting machine 1. FIG. 3 is a schematic diagram showing the false twisting machine 1 developed along the path (yarn path) of the yarn Y. The direction perpendicular to the plane of FIG. 2 is the longitudinal direction of the machine base mentioned above, and the left-right direction of the plane of FIG. 2 is the width direction of the machine base. The direction perpendicular to both the machine longitudinal direction and the machine width direction is the vertical direction (vertical direction) in which gravity acts. The direction in which the yarn Y runs is defined as the yarn running direction. The false twisting machine 1 includes a yarn feeding section 2 for supplying a plurality of yarns Y, a processing section 3 for processing (false twisting) the plurality of yarns Y supplied from the yarn feeding section 2, and a processing section. The present invention includes a winding unit 4 that winds the plurality of yarns Y processed by the above-mentioned threads Y onto a winding bobbin Bw, and a machine control device 5 (control unit of the present invention).

The yarn supply section 2 has a creel stand 6 that holds a plurality of yarn supply packages Ps, and supplies a plurality of yarns Y to the processing section 3. The processing section 3 is configured to unwind and process the plurality of yarns Y from the yarn supply section 2. The processing section 3 includes, in order from the upstream side in the yarn running direction, a first feed roller 11, a twist guide 12, a first heating device 13, a cooling device 14, a false twisting device 15, a second feed roller 16, and a second heating device. 17, a third feed roller 18 is arranged. These components in the processing section 3 are provided, for example, in each of a plurality of weights 9 (see FIG. 3), which will be described later. The winding unit 4 includes a plurality of winding devices 19 . Each winding device 19 winds the yarn Y that has been falsely twisted in the processing section 3 onto a winding bobbin Bw to form a winding package Pw. Further, the winding unit 4 is provided with a plurality of autodoffers 10 corresponding to the plurality of winding devices 19, respectively, for exchanging the formed winding package Pw with a new empty winding bobbin Bw. It is being

The machine control device 5 is configured to be able to control each component of the yarn feeding section 2, processing section 3, and winding section 4. The machine control device 5 is, for example, a general computer device. The machine controller 5 includes a machine input section 5a, a machine output section 5b, and a machine storage section 5c (storage section of the present invention) (see FIG. 1). The machine input unit 5a is, for example, a touch panel and/or a keyboard (not shown), and is configured to be operated by an operator. The machine output unit 5b has, for example, a display (not shown) and is configured to be able to output information. The machine storage unit 5c is configured to store various information for controlling the components of the yarn feeding unit 2, processing unit 3, and winding unit 4. The machine control device 5 controls the components of the yarn feeding section 2, processing section 3, and winding section 4 based on various information. Alternatively, the machine control device 5 indirectly controls the components of the yarn feeding section 2, processing section 3, and winding section 4 through various control devices (not shown) for controlling each component. It may be controlled. A management device 101, which is a host computer, is electrically connected to the machine control device 5.

The false twisting machine 1 has a main machine stand 7 and a winding stand 8 arranged at intervals in the width direction of the machine stand. The main machine stand 7 and the winding stand 8 are provided so as to extend approximately the same length in the longitudinal direction of the machine stand. The main machine stand 7 and the winding stand 8 are arranged to face each other in the machine stand width direction. The false twisting machine 1 has a unit called a span, which includes a main machine stand 7 and a winding table 8. In one span, each device is arranged so that a plurality of yarns Y running side by side in the longitudinal direction of the machine can be subjected to false twisting at the same time. In the false twisting machine 1, this span is arranged symmetrically on the paper with the center line C of the main machine stand 7 in the width direction of the machine stand as an axis of symmetry (the main machine stand 7 is the same for the left and right spans). ). Further, a plurality of spans are arranged in the longitudinal direction of the machine.

Furthermore, a group of constituent elements through which one yarn Y is supplied from the yarn supplying section 2 and reaching the winding section 4 is called a "weight." The false twisting machine 1 has the same number of weights 9 as the number of winding devices 19 (see FIG. 3). Roughly speaking, the plurality of weights 9 are arranged side by side along the longitudinal direction of the machine. Inclusively, the false twisting machine 1 has a plurality of spans, and each span has a plurality of weights 9. The false twisting machine 1 is capable of false twisting the yarn Y at the weight 9 on which the yarn Y is hung.

(Yarn feeding section)
The configuration of the yarn feeding section 2 will be explained with reference to FIGS. 2 and 3. The creel stand 6 of the yarn feeding section 2 has a plurality of yarn feeding package holding sections 20 (see FIG. 3) provided corresponding to the plurality of weights 9, respectively. Each of the plurality of yarn supply package holding sections 20 is configured so that two yarn supply packages Ps can be attached and detached. That is, the yarn supplying package holding section 20 has two package mounting sections 21. For convenience of explanation, one of the two package mounting sections 21 is called a first mounting section 22 and the other is called a second mounting section 23. The first mounting section 22 and the second mounting section 23 are configured such that one yarn supply package Ps can be attached to and removed from each of them. The attachment and detachment of the yarn supply package Ps to and from the package attachment section 21 is performed by, for example, an operator.

Each yarn supplying package holding section 20 of the yarn supplying section 2 is configured to be able to supply yarn Y without interruption in the following manner. For example, as shown in FIG. 3, a yarn supplying package Ps1, which is any one of the plurality of yarn supplying packages Ps, is attached to the first attachment section 22. Further, a yarn supplying package Ps2 different from the yarn supplying package Ps1 is attached to the second attachment section 23. The yarn Y is being unwound from the yarn supply package Ps1. Further, the terminal end of the yarn Y included in the yarn supplying package Ps1 and the starting end of the yarn Y included in the yarn supplying package Ps2 are knotted (connected). As a result, a knotted portion K (yarn connection portion) is formed between the two yarns Y. In such a case, after the yarn supply package Ps1 becomes empty, the yarn Y can be continuously supplied from the yarn supply package Ps2. Specifically, immediately after the supply of the yarn Y from the yarn supply package Ps1 ends and the yarn supply package Ps1 becomes empty, the knotted portion K is pulled toward the downstream side in the yarn running direction (toward the winding device 19 side). As a result, the yarn Y is unwound from the yarn supply package Ps2. That is, after the yarn Y is unwound from the yarn supply package Ps attached to one package attachment section 21, the yarn Y is unwound from the next yarn supply package Ps attached to the other package attachment section 21. start. Hereinafter, for convenience of explanation, such an event will be referred to as yarn supply package switching. Thereby, the thread Y is supplied without interruption. Thereafter, the empty yarn supply package Ps (yarn supply bobbin Bs) is replaced with a new yarn supply package Ps by, for example, an operator. Further, the starting end of the yarn supplying package Ps2 and the terminal end of the new yarn supplying package Ps are tied together by, for example, an operator. By repeating such a procedure, the yarn Y can be supplied from the yarn feeding section 2 without interruption.

A yarn detection sensor 24 (unraveling package detection section and information acquisition section of the present invention) is arranged downstream of each yarn supply package holding section 20 in the yarn traveling direction. The yarn detection sensor 24 is configured to be able to detect from which of the first attachment section 22 and the second attachment section 23 the yarn Y is supplied. As shown in FIG. 3, the yarn detection sensor 24 includes a first detection section 25 and a second detection section 26. The first detection section 25 is configured to be able to detect whether or not the yarn Y is being supplied from the first attachment section 22 . The second detection section 26 is configured to be able to detect whether or not the yarn Y is being supplied from the second mounting section 23 . The first detection unit 25 and the second detection unit 26 are, for example, optical sensors that each optically detects the yarn Y. For more details on the yarn detection sensor 24, see, for example, Japanese Patent No. 5873105. Alternatively, the first detection section 25 and the second detection section 26 may be contact-type sensors, for example.

Further, in the yarn traveling direction, a cutter 27 configured to be able to cut the traveling yarn Y is provided downstream of each yarn supply package holding section 20 and upstream of the first feed roller 11. . The cutter 27 is electrically connected to the machine control device 5.

(process section)
The configuration of the processing section 3 will be explained with reference to FIGS. 2 and 3. In the following, for convenience of explanation, only a portion of the processing section 3 that corresponds to one weight 9 will be explained.

The first feed roller 11 is configured to unwind the yarn Y from the yarn feeding package Ps attached to the yarn feeding section 2 and send it to the first heating device 13 . The first feed roller 11 is arranged on the upstream side of the twist guide 12 in the yarn traveling direction. The conveyance speed of the yarn Y by the first feed roller 11 is approximately equal to the unwinding speed V (see FIG. 3) at which the yarn Y is unwound from the yarn supply package Ps. Information on the set value of the conveyance speed of the yarn Y by the first feed roller 11 is stored in advance in the machine control device 5, for example. The cutter 27 described above is provided upstream of the first feed roller 11 in the yarn running direction. When yarn breakage occurs, the cutter 27 cuts the yarn Y, thereby preventing the yarn Y from wrapping around rotationally driven members such as the first feed roller 11.

The twist guide 12 is configured so that the twist imparted to the yarn Y by the false twisting device 15 does not propagate upstream of the twist guide 12 in the yarn traveling direction. The twist guide 12 is arranged downstream of the first feed roller 11 in the yarn running direction and upstream of the first heating device 13 in the yarn running direction.

The first heating device 13 is configured to heat the yarn Y sent from the first feed roller 11. The first heating device 13 is arranged downstream of the twist guide 12 in the yarn running direction and upstream of the cooling device 14 in the yarn running direction. In this embodiment, in order to simplify the explanation, it is assumed that the first heating device 13 is configured to heat one thread Y, but the invention is not limited to this. The first heating device 13 may be configured to be able to heat a plurality of threads Y at the same time.

The cooling device 14 is configured to cool the yarn Y heated by the first heating device 13. The cooling device 14 is arranged downstream of the first heating device 13 in the yarn running direction and upstream of the false twisting device 15 in the yarn running direction. In this embodiment, to simplify the explanation, it is assumed that the cooling device 14 is configured to cool one thread Y, but the cooling device 14 is not limited to this. The cooling device 14 may be configured to be able to cool a plurality of yarns Y at the same time.

The false twisting device 15 is configured to give twist to the yarn Y. The false twisting device 15 is, for example, a so-called disk friction false twisting device, but is not limited thereto. The false twisting device 15 is arranged downstream of the cooling device 14 in the yarn running direction and upstream of the second feed roller 16 in the yarn running direction.

The second feed roller 16 is configured to feed the yarn Y processed by the false twisting device 15 to the second heating device 17 . The conveyance speed of the yarn Y by the second feed roller 16 is faster than the conveyance speed of the yarn Y by the first feed roller 11. Thereby, the yarn Y is stretched between the first feed roller 11 and the second feed roller 16. Information on the set value of the conveyance speed of the yarn Y by the second feed roller 16 is stored in advance in the machine control device 5, for example.

The second heating device 17 is configured to heat the yarn Y sent from the second feed roller 16. The second heating device 17 extends along the vertical direction. To simplify the explanation, it is assumed that the second heating device 17 is configured to heat one thread Y, but the invention is not limited to this. The second heating device 17 may be configured to be able to heat a plurality of yarns Y at the same time.

The third feed roller 18 is configured to feed the yarn Y heated by the second heating device 17 to the winding device 19. The conveyance speed of the yarn Y by the third feed roller 18 is slower than the conveyance speed of the yarn Y by the second feed roller 16. The yarn Y is relaxed between the second feed roller 16 and the third feed roller 18. Information on the set value of the conveyance speed of the yarn Y by the third feed roller 18 is stored in advance in the machine control device 5, for example.

In the processing section 3 configured as described above, the yarn Y stretched between the first feed roller 11 and the second feed roller 16 is twisted by the false twisting device 15. The twist formed by the false twisting device 15 propagates up to the twist guide 12, but does not propagate upstream of the twist guide 12 in the yarn running direction. The thread Y that has been stretched and twisted is heated and heat-fixed in the first heating device 13 and then cooled in the cooling device 14. Although the yarn Y is untwisted downstream from the false twisting device 15, the state in which each filament is falsely twisted in a wavy manner is maintained by the heat fixing described above. Further, the yarn Y that has been falsely twisted by the false twisting device 15 is heat-treated in the second heating device 17 while being relaxed between the second feed roller 16 and the third feed roller 18, and then is heated in the yarn running direction. is guided to the downstream side. Finally, the yarn Y sent from the third feed roller 18 is wound onto the winding bobbin Bw by the winding device 19. Thereby, a winding package Pw is formed.

(Take-up section)
The configuration of the winding section 4 will be explained with reference to FIGS. 2 and 3. The winding section 4 includes a plurality of winding devices 19 (marking section of the present invention) and a plurality of autodoffers 10 (see FIG. 2; bobbin exchange section of the present invention) provided corresponding to each winding device 19. have The plurality of winding devices 19 belong to each of the plurality of weights 9 (see FIG. 3). Each winding device 19 is configured to wind the yarn Y onto a winding bobbin Bw. Each winding device 19 includes, for example, a fulcrum guide 31, a traverse device 32 (traverse portion of the present invention), a cradle 33, and a winding roller 34. The fulcrum guide 31 is a guide that serves as a fulcrum when the yarn Y is traversed. The traverse device 32 is configured to traverse the yarn Y using, for example, a traverse guide 35 attached to an endless belt that is reciprocated by a motor 36 (guide drive unit of the present invention). That is, the traverse device 32 is configured to reciprocate the traverse guide 35 along the axial direction of the winding bobbin Bw (in other words, the axial direction of the winding package Pw). The cradle 33 is configured to be able to rotatably support the winding bobbin Bw (winding package Pw) around the central axis of the winding package Pw. The take-up roller 34 is configured to rotate the take-up package Pw around the central axis and apply contact pressure to the surface (outer peripheral surface) of the take-up package Pw. The take-up roller 34 is rotationally driven by a motor 37 (rotation drive unit of the present invention), for example, while in contact with the surface of the take-up package Pw. As a result, the winding package Pw is driven to rotate by the frictional force, and contact pressure is applied to the surface of the winding package Pw, so that the shape of the winding package Pw is adjusted. Note that instead of rotationally driving the winding roller 34, the winding package Pw may be directly rotationally driven by a motor (not shown).

The autodoffer 10 is configured to remove the winding package Pw from the winding device 19 and attaching an empty winding bobbin Bw to the winding device 19. In other words, the autodoffer 10 is configured such that the winding package Pw after formation can be exchanged with an empty winding bobbin Bw in the winding unit 4 . Further, the autodoffer 10 has a cutter (not shown) that can cut the yarn Y near the winding package Pw. The running yarn Y is cut by the cutter, thereby completing the formation of the winding package Pw. Here, even after the yarn is cut by the cutter, the yarn Y is unwound from the yarn supply package Ps at approximately the same speed as when it is wound onto the winding bobbin Bw, and continues to be supplied to the winding device 19 side. The autodoffer 10 sucks and captures the running yarn Y supplied to the winding device 19 after the completion of forming a certain winding package Pw until the start of winding the yarn Y onto the next winding bobbin Bw. It has a suction (not shown) that can be held. The portion of the thread Y that has been sucked by the suction is removed by suction until the thread Y is next wound onto the winding bobbin Bw. Furthermore, the autodoffer 10 is configured to hang the yarn Y onto an empty winding bobbin Bw mounted on the winding device 19. The autodoffer 10 includes the cutting section of the present invention. The autodoffer 10 corresponds to a bobbin exchange section of the present invention. For more details on the structure of the autodoffer 10, etc., please refer to, for example, Japanese Patent Laid-Open No. 6-212521.

In the winding unit 4 configured as above, the yarn Y sent from the third feed roller 18 described above is wound around the winding bobbin Bw by each winding device 19, and a winding package Pw is formed ( winding process). When the yarn Y is cut by the cutter of the autodoffer 10, the process of winding the yarn Y onto the winding bobbin Bw is completed. Almost simultaneously, the yarn Y supplied to the winding device 19 is suctioned and held, and the formed winding package Pw is removed from the cradle 33 by the autodoffer 10. Immediately after that, a new empty winding bobbin Bw is mounted on the cradle 33 by the autodoffer 10, and the thread Y is hung on the new winding bobbin Bw. Thereby, it is possible to start winding the yarn Y onto the new winding bobbin Bw.

(Remaining amount calculation)
In addition, the machine control device 5 calculates the remaining amount of yarn Y included in the yarn supply package Ps (hereinafter referred to as unwinding package) in which yarn Y is unwound at a predetermined reference time (hereinafter referred to as remaining amount calculation). ) is configured to be executable. In this embodiment, the reference time means the current time when the remaining amount calculation is performed. The machine control device 5 can calculate the remaining amount of yarn Y included in the package being unwound at the reference time by using initial amount information, unwinding unit amount information, and accumulated time information, which will be described later. It is composed of Hereinafter, for convenience of explanation, the initial amount information, unraveling unit amount information, and accumulated time information are collectively referred to as basic information.

The initial amount information is information regarding the initial amount (initial weight or initial length) of the yarn Y contained in the yarn supply package Ps before the yarn Y starts to be unwound. The initial amount information is set in advance in the machine control device 5, for example, as common information related to all yarn feeding packages Ps of all weights 9 of one false twisting machine 1. As more specific information, in this embodiment, information on the above-mentioned initial weight WF and information on the fineness (weight per unit length) of the yarn Y are stored in the machine control device 5 as initial amount information. There is. The unit of weight of the yarn supply package Ps is, for example, kg. Further, the fineness of the yarn Y is assumed to be F. The unit of fineness is, for example, dtex. Decitex is the weight (g) of yarn Y per 10,000 meters.

The unwinding unit amount information is information regarding the amount of yarn Y that is unwound per unit time from the yarn supply package Ps. The unwinding unit amount information is, for example, information on the unwinding speed V mentioned above. In this embodiment, for convenience of explanation, it is assumed that the unwinding speed V during the winding process is substantially constant. The unit of unwinding speed is, for example, m/min. The unwinding unit amount information is set in advance in the machine control device 5, for example, as common information for all the weights 9 of one false twisting machine 1. The machine control device 5 acquires information on the unwinding speed V, for example, based on information on the set value of the rotation speed of the first feed roller 11.

The cumulative time information is information regarding the cumulative value (cumulative time) of the time during which the yarn Y is unwound from the yarn supply package Ps. For convenience of explanation, the cumulative time associated with the yarn supply package Ps in which the yarn Y is unwound is referred to as tin. Accumulated time information is acquired as follows. First, for example, when the yarn Y starts to be unwound from the above-mentioned yarn supply package Ps1 (see FIG. 3), the yarn detection sensor 24 detects the start of unwinding of the yarn Y in the first attachment section 22. At this time, the machine control device 5 sets tin to a predetermined initial time (reset process). The initial time is, for example, zero. Thereafter, the machine control device 5 increases tin (updates tin) as time passes while the yarn Y is being unwound from the yarn supply package Ps. Further, for example, when the unwinding of the yarn Y from the yarn supply package Ps is temporarily stopped due to a yarn breakage or the like (in other words, a stoppage time has occurred), the machine control device 5 temporarily stops updating of tin. let In this way, the machine control device 5 acquires only the time when the yarn detection sensor 24 detects that the yarn Y is unwound from the yarn supply package Ps (detection time) as the cumulative time (tin). . The machine control device 5 can acquire cumulative time information regarding the yarn supply package Ps when the yarn Y is being unwound from the yarn supply package Ps.

Further, during the winding process, the machine control device 5 determines whether or not a yarn supply package switching has occurred, in which the yarn supply package Ps supplying the yarn Y is switched, based on the detection result by the yarn detection sensor 24. For example, when referring to FIG. 3, the event in which the yarn Y from the yarn supply package Ps1 is finished unwinding (unwinding completed) and the yarn Y is first unwound from the yarn supply package Ps2 is the event in which the yarn Y from the yarn supply package Ps1 is unwound for the first time. It is a switch. The state of the yarn detection sensor 24 changes from a state where one of the first detection section 25 and the second detection section 26 detects the yarn Y to a state where the other of the first detection section 25 and the second detection section 26 detects the yarn Y. When the state is changed to the state shown in FIG. In other words, the yarn detection sensor 24 acquires information indicating the occurrence of yarn supply package switching (hereinafter referred to as switching information). When the machine control device 5 determines that yarn supply package switching has occurred, it performs the above-mentioned reset process to set tin to a predetermined initial time.

As described above, the machine control device 5 generates (in other words, acquires) the initial amount information, unwinding unit amount information, and cumulative time information as basic information by calculation.

When the remaining amount of yarn Y included in the package being unwound at the reference time is WR, the machine control device 5 uses the basic information to calculate the remaining amount based on the following formula. Note that "1000" and "10000" in the formula are coefficients for unifying the units of numerical values on both sides to "kg".

WR=WF-(V×F/10000)×tin/1000

Further, when the ratio of the remaining amount of yarn Y contained in the package being unwound to the initial amount (hereinafter referred to as the remaining amount ratio) is R, the machine control device 5 calculates the remaining amount ratio based on the following formula. It is possible to calculate. The machine control device 5 may calculate the remaining amount ratio as a percentage of WR to WF (remaining amount percentage).

R=WR/WF

Alternatively, the machine control device 5 may calculate the remaining amount ratio using only the basic information without using the WR.

Further, when the remaining time during which the yarn Y can be supplied from the package during unwinding is tR, the machine control device 5 may estimate tR based on the following formula, for example. The unit of tR is "min".

tR=WF×1000/(V×F/10000)-tin

In the field of yarn processing, various improvements have been made to improve productivity and product quality. The inventor of the present application has been conducting extensive research in order to develop yarn processing equipment and a yarn processing machine that have new added value not found in the past. One of the problems is that when the above-mentioned knot portion K is mixed into a certain winding package Pw, the grade of the winding package Pw deteriorates. Therefore, the following contamination avoidance processing can be considered as a countermeasure. Contamination avoidance processing refers to the winding of the knotted portion K by acquiring information on the timing at which the knotted portion K may be mixed into the winding package Pw by some means and ending the formation of the winding package Pw at a predetermined timing. This is to avoid contamination of the package. However, depending on the timing of the contamination avoidance process, the inner layer of the winding package Pw formed next to the winding package Pw (among the yarn layers included in the winding package Pw, which is closer to the winding bobbin Bw in the radial direction) There is a risk that the nodule part K may be mixed in unintentionally. It is virtually impossible to remove the knotted portion K mixed into the inner layer of the winding package Pw.

Therefore, in the present embodiment, in order to easily remove the knot portion K mixed into the winding package Pw, the machine control device 5 performs control and information processing as described below. Note that, in the following, unless otherwise specified, the explanation will be limited to one predetermined weight 9 among the plurality of weights 9.

(Configuration for processing when switching occurs)
The machine control device 5 is configured to be able to preset the contents of the process to be performed when yarn supply package switching occurs (hereinafter referred to as the process when switching occurs). Note that the details of the process when switching occurs will be described later. The configuration for processing when switching occurs will be described with reference to FIG. 4. FIG. 4 is an explanatory diagram showing a processing mode selection screen of the false twisting machine 1. For convenience of explanation, it is assumed that a display is provided as the machine output section 5b, and a touch panel arranged so as to overlap the display is provided as the machine input section 5a (see FIG. 4). However, the configurations of the machine input section 5a and the machine output section 5b are not limited to this.

The machine control device 5 stores information on a plurality of options for processing when switching occurs in the machine storage section 5c. The machine control device 5 is configured to be able to display, for example, options for processing when switching occurs on the machine output unit 5b (see screen S1 in FIG. 4). The machine control device 5 is configured to be able to set in advance the contents of the process to be performed when switching occurs, in accordance with the operator's input to the machine input section 5a. For example, the options ``None'', ``Replace winding bobbin'', and ``Cut thread'' are displayed in the upper part of the screen S1. "None" means that no special processing is executed even if yarn supply package switching occurs. "Take-up bobbin replacement" means that when yarn supply package switching occurs, the take-up bobbin Bw is replaced in accordance with the procedure described below. "Yarn cut" means to cut the running yarn Y by the cutter 27 in a procedure described later when a yarn supply package switch occurs. Note that although the options are arranged in this order for convenience of explanation to be described later, the order of the options is not limited to this.

(If processing is not performed when switching occurs)
For reference to understand the explanation that follows, the unwinding of yarn Y from each yarn supplying package Ps and each winding package in the case where the processing at the time of switching is not performed (when the above-mentioned "None" is selected) is shown. The formation of Pw will be explained with reference to FIGS. 5(a) to 5(c). FIGS. 5(a) to 5(c) are graphs showing the relationship between yarn amount and time in the conventional processing mode in which the processing at the time of switching is not performed. More specifically, FIG. 5(a) shows the remaining amount (vertical axis) of the yarn Y included in the yarn supply package Ps (specifically yarn supply packages Ps1, Ps3) attached to the first attachment section 22. It is a graph showing the relationship with time (horizontal axis). FIG. 5(b) shows the relationship between the remaining amount of yarn Y (vertical axis) and time (horizontal axis) included in the yarn supplying package Ps (specifically, yarn supplying package Ps2) attached to the second attachment section 23. It is a graph showing a relationship. FIG. 5(c) shows the relationship between the amount of winding of yarn Y (vertical axis) on the winding bobbin Bw (specifically, winding bobbin Bw1, Bw2, Bw3, Bw4, Bw5) and time (horizontal axis). This is a graph showing. In any of the graphs in FIGS. 5(a) to 5(c), the origin is the time t0 when the yarn Y is unwound for the first time from the yarn supply package Ps1. In addition, in the present embodiment, the weight (initial weight) of each yarn supplying package Ps in a state where the yarn Y has never been unwound from each yarn supplying package Ps (that is, a fully wound state) is WF It is.

First, before time t0, a fully wound yarn supply package Ps1 is mounted on the first mounting section 22. The initial weight of the yarn Y included in the yarn supply package Ps1 is WF. Further, before time t0, the second mounting section 23 is also equipped with a fully wound yarn supply package Ps2. The terminal end of the yarn Y included in the yarn supplying package Ps1 and the starting end of the yarn Y included in the yarn supplying package Ps2 are knotted to form a knotted portion K. Further, at time t0, threading to each part of the predetermined weight 9 is started. At the same time, at time t0, the yarn Y starts to be unwound from the fully wound yarn supply package Ps1. Thereafter, at time ts1 immediately after time t0, threading on the winding bobbin Bw1 mounted on the winding device 19 is completed, and the thread Y begins to be wound on the winding bobbin Bw1. Note that the yarn Y is suctioned and captured by the suction of the autodoffer 10 from the time the yarn Y begins to be unwound from the yarn supply package Ps1 until the yarn threading to the winding bobbin Bw1 is completed. In this embodiment, the unwinding speed of the yarn Y when threading is performed is approximately equal to the unwinding speed (V mentioned above) when the yarn Y is wound around the winding bobbin Bw.

As time passes, the remaining amount (remaining weight) of the yarn Y included in the yarn supply package Ps1 decreases, and the winding amount (winding weight) of the yarn Y wound around the winding bobbin Bw1 increases. At time te1, the cutter of the autodoffer 10 cuts the yarn Y, thereby completing the winding process of the yarn Y onto the winding bobbin Bw1. In other words, the time te1 is the winding end time when the yarn Y has been wound onto the winding bobbin Bw1 (the formation of the winding package Pw1 has ended). Only the yarn Y supplied from the yarn supply package Ps1 is wound onto the winding bobbin Bw1. The cutting of the yarn Y by the cutter, the suction capture of the yarn Y by the suction (that is, the start of suction removal of the yarn Y), and the removal of the winding bobbin Bw1 (winding package Pw1) from the cradle 33 are performed almost simultaneously. Next, at time ts2 immediately after time te1, the autodoffer 10 completes mounting the winding bobbin Bw2 on the cradle 33, and starts winding the yarn Y onto the winding bobbin Bw2 (winding bobbin replacement). work is completed). There is a slight difference between the winding end time (time te1) for the winding bobbin Bw1 and the winding start time (time ts2) for the winding bobbin Bw2, where the yarn Y is wound next after the winding bobbin Bw1. There is a time lag tL (see FIG. 5(c)). As described above, even when the winding bobbin Bw is being replaced, the yarn Y is unwound from the yarn supply package Ps at approximately the same speed as when it is being wound around the winding bobbin Bw. Further, at time te2, the process of winding the yarn Y onto the winding bobbin Bw2 (formation of the winding package Pw2) is completed, and at time ts3, the process of winding the yarn Y onto the winding bobbin Bw3 is started.

At time ta1 (see FIG. 5(a)) after time ts3, the yarn supply package Ps1 attached to the first attachment section 22 becomes empty. In other words, the time ta1 is the unwinding end time when the yarn Y has been unwound from the yarn supplying package Ps1. At the same time as the yarn supply package Ps1 becomes empty, at time tb1 (=time ta1), a knotted portion is formed by knotting the yarn Y included in the yarn supply package Ps1 and the yarn Y included in the yarn supply package Ps2. K is pulled toward the winding device 19. As a result, the yarn Y starts to be unwound from the yarn supply package Ps2 attached to the second attachment section 23. In other words, the time tb1 is the unwinding start time when the yarn Y is first unwound from the yarn supply package Ps2 (the yarn Y starts to be unwound). Thereafter, at time te3, the process of winding the yarn Y onto the winding bobbin Bw3 (formation of the winding package Pw3) ends. Both the yarn Y unwound from the yarn supply package Ps1 and the yarn Y unwound from the yarn supply package Ps2 are wound onto the winding bobbin Bw3. Further, the winding package Pw3 includes a knot portion K. Thereafter, at time ts4, the process of winding the yarn Y onto the winding bobbin Bw4 is started. At time te4, the process of winding the yarn Y onto the winding bobbin Bw4 (formation of the winding package Pw4) ends. Only the yarn Y unwound from the yarn supply package Ps2 is wound on the winding bobbin Bw4.

Further, after the time ta1 and before the yarn supply package Ps2 becomes empty (for example, at time ta2), the empty yarn supply package Ps1 is removed from the first mounting section 22 by the operator, and a new full yarn package Ps1 is removed by the operator. The yarn supply package Ps3 is attached to the first mounting section 22 (yarn supply package replacement work). The remaining weight of the yarn feeding package Ps3 at this time is WF. Thereafter, at an appropriate timing, the operator knots (connects) the terminal end of the yarn Y included in the yarn supplying package Ps2 and the starting end of the yarn Y included in the yarn supplying package Ps3, and the knotted portion K (see FIG. 3) is formed. The operator may perform the knot work (connection work) by hand. Alternatively, the operator may perform the knotting operation, for example, by operating a portable knotting device (not shown).

Thereafter, the yarn Y is wound around the winding bobbin Bw5 from time ts5 to time te5 (a winding package Pw5 is formed). At time tb2 between time ts5 and time te5, the yarn supply package Ps2 mounted on the second mounting section 23 becomes empty. At the same time as the yarn supply package Ps2 becomes empty, at time ta3 (=time tb2), the yarn Y starts to be unwound from the yarn supply package Ps3 attached to the first attachment section 22.

If the process at the time of switching is not performed, the yarn Y is unwound from each yarn supply package Ps as described above, and each winding package Pw is formed.

(Procedure for replacing the winding bobbin when switching occurs)
Next, a procedure for replacing the winding bobbin Bw when "winding bobbin replacement" is selected as the mode of processing when switching occurs will be described with reference to FIGS. 6 to 8(b). FIG. 6 is a flowchart showing a procedure for replacing the winding bobbin Bw when switching of the yarn supply package occurs. FIGS. 7A to 7C are graphs showing the relationship between yarn amount and time in the winding bobbin exchange processing mode. Similar to FIG. 5(a), FIG. 7(a) shows the relationship between the remaining amount of yarn Y (vertical axis) included in the yarn supplying package Ps attached to the first attachment part 22 and time (horizontal axis). This is a graph showing. Similar to FIG. 5(b), FIG. 7(b) shows the relationship between the remaining amount of yarn Y (vertical axis) included in the yarn feeding package Ps attached to the second attachment part 23 and time (horizontal axis). This is a graph showing. Similar to FIG. 5C, FIG. 7C is a graph showing the relationship between the winding amount of yarn Y onto the winding bobbin Bw (vertical axis) and time (horizontal axis). FIG. 8(a) is a schematic diagram showing the winding package Pw. FIG. 8(b) is an explanatory diagram showing information regarding the rank of the winding package Pw. FIG. 8B shows, for example, a screen S2 related to information on the winding package Pw displayed on the machine output section 5b.

As an initial state, the yarn supply package Ps1 is attached to the first attachment section 22, and the yarn supply package Ps2 is attached to the second attachment section 23, for example, as in the above-mentioned "case where switching occurs processing is not performed". . Further, the yarn Y unwound from the yarn supply package Ps1 is processed by the processing section 3, and the yarn is wound around the winding bobbin Bw1. The yarn feeding package Ps1 corresponds to the first yarn feeding package of the present invention. The yarn feeding package Ps2 corresponds to the second yarn feeding package of the present invention.

During the winding process, the machine control device 5 determines whether information indicating the occurrence of yarn supply package switching (that is, switching information) is detected (acquired) by the yarn detection sensor 24. Thereby, the machine control device 5 determines whether yarn feeding package switching has occurred (S101). If yarn feeding package switching has not occurred (S101: No), the machine control device 5 continues forming the winding package Pw. In this example, the winding packages Pw1 and Pw2 are formed in order, as in the case where the switching event processing is not performed. The machine control device 5 evaluates the winding packages Pw1 and Pw2 as winding packages Pw of a high rank (for example, see "A" in FIG. 8(b)), and individual winding packages Pw of these winding packages Pw. Information (see "ID" in FIG. 8(b)) and ranks are stored in association with each other.

When determining that yarn feeding package switching has occurred (S101: Yes), the machine control device 5 controls the winding device 19 to perform the following marking operation on the winding package Pw being formed (S102). ). For example, when the yarn supply package switching occurs, the yarn Y is wound around the winding bobbin Bw3, and a winding package Pw3a is formed (see FIG. 7(c)). The winding package Pw3a that is being formed by the winding device 19 when the yarn feeding package switching occurs corresponds to the predetermined winding package of the present invention. When the machine control device 5 determines that yarn feeding package switching has occurred, it controls the motor 37 (see FIG. 3) to drive the winding package Pw3a and controls the motor 36 to rotate the winding package Pw3a. The traverse guide 35 is stopped at a predetermined position in the axial direction of Pw3a. As a result, so-called stick winding is performed on the winding package Pw3a, and a mark M1 (see FIG. 8(a)) is formed on the winding package Pw3a. The mark M1 is a mark indicating that the knotted portion K is mixed into the winding package Pw3a. As described above, the operation (marking operation) of the winding device 19 for attaching the mark M1 to the winding package Pw (that is, marking the winding package Pw) is performed.

In this way, the winding device 19 is configured to be able to perform the process of recording the contamination information (contamination information recording process) indicating the contamination of the knot portion K into the winding package Pw3a (predetermined winding package). The winding device 19 is included in the recording section of the present invention. The mark M1 is included in the contamination information of the present invention. The marking operation is included in the mixed information recording process of the present invention.

Further, the machine control device 5 controls the autodoffer 10 to cut the running yarn Y at a predetermined timing when the knotted portion K is mixed into the surface layer of the winding package Pw3a, thereby forming the winding package Pw3a. The process is terminated (formation completion process. S103). In this case, the autodoffer 10 also corresponds to the cutting section of the present invention. The surface layer portion means a portion that can be easily removed from the winding package Pw3a and has a short distance from the outer peripheral surface of the winding package Pw3a in the radial direction of the winding package Pw3a. For example, in the radial direction of the winding package Pw3a, a portion within 2 mm from the outer peripheral surface of the winding package Pw3a is the surface layer portion. Further, the portion forming the mark M1 is also included in the surface layer portion. The predetermined timing may be, for example, approximately at the same time as the machine control device 5 determines that yarn supply package switching has occurred. Alternatively, the predetermined timing may be when a predetermined time has elapsed after the machine control device 5 determines that yarn supply package switching has occurred. In this case, the machine control device 5 may store the set value of the predetermined time in advance. The machine control device 5 may be configured to allow an operator to input a set value for the predetermined time. Alternatively, the machine control device 5 may be configured to be able to store the set value of the length of the yarn path in advance, and calculate the predetermined time based on information such as the length of the yarn path and the unwinding speed.

Thereafter, the machine control device 5 controls the autodoffer 10 to exchange the winding package Pw3a with a new winding bobbin Bw4 (S104). Further, the machine control device 5 controls the autodoffer 10 to thread the new take-up bobbin Bw4. Furthermore, the machine control device 5 evaluates the winding package Pw3a as a winding package Pw of a lower rank (for example, see "B" in FIG. 8(b)) compared to winding packages Pw1 and Pw2. Then, the individual information of the winding package Pw3a and the rank are stored in association with each other. The machine control device 5 also includes individual information of the winding package Pw3a and information indicating that the nodule part K was intentionally mixed into the surface layer of the winding package Pw3a (for example, as shown in FIG. 8(b)). (see "Nodule mixed in the surface layer") and are stored in the machine storage unit 5c in association with each other. This information is included in the contamination information of the present invention. The process of storing the information (recording process) is included in the mixed information recording process of the present invention. At this time, the machine control device 5 functions as a recording section of the present invention.

Thereafter, the machine control device 5 controls the winding device 19 to start winding the yarn Y onto the winding bobbin Bw4. As a result, the yarn Y is wound around the winding bobbin Bw4, and a winding package Pw4 is formed. Like the winding packages Pw1 and Pw2, the winding package Pw4 is formed as a winding package Pw of a high rank (see FIG. 8(b)). Further explanation of subsequent processing will be omitted.

(About thread cutting)
Next, a description will be given of the process when the above-mentioned "thread cut" is selected as the mode of the process when switching occurs. In this case, when the machine control device 5 determines that the yarn feeding package switching has occurred during the formation of the winding package Pw3a described above, it causes the winding device 19 to perform the marking operation described above. Thereafter, the machine control device 5 controls the cutter 27 to cut the running yarn Y at a predetermined timing to mix the knotted portion K into the surface layer of the winding package Pw3a, thereby forming the winding package Pw3a. Terminate (formation completion processing). At the same time, the machine control device 5 controls each part of the weight 9 to stop the operation of the weight 9. The machine control device 5 may further associate the individual information of the winding package Pw3a with the contamination information and store them in the machine storage unit 5c. In addition, in order to operate the weight 9 again, it is necessary to thread each part of the weight 9. When "thread cut" is selected as the switching processing mode, the cutter 27 corresponds to the cutting section of the present invention.

As described above, the knot portion K can be intentionally mixed into the surface layer of the winding package Pw3a (predetermined winding package). Thereby, by simply untying a small amount of yarn Y included in the surface layer of the formed winding package Pw3a, the knotted portion K intentionally mixed in the surface layer can be found and pulled out. In addition, by checking the result of the recording process (that is, the contamination information) by the recording unit (in this embodiment, the winding device 19 and/or the machine control device 5), the winding package Pw3a and other winding packages can be checked. The package Pw can be reliably distinguished from the package Pw. Therefore, the knot portion K mixed in the winding package Pw3a can be easily removed from the winding package Pw3a.

Further, the machine control device 5 controls the winding device 19 to perform a marking operation on a predetermined winding package. Thereby, the predetermined winding package and the winding package Pw to which no mark is attached can be easily distinguished by appearance.

Further, the machine control device 5 causes the winding device 19 to perform a marking operation. Thereby, the winding package Pw3a can be rolled. Therefore, the marking operation can be performed using simple means.

The machine control device 5 also includes a machine storage section 5c configured to be able to store individual information and contamination information of a predetermined winding package in association with each other. By checking the information stored in the machine storage unit 5c, the predetermined winding package can be distinguished from other winding packages Pw.

Furthermore, when the autodoffer 10 functions as the cutting section of the present invention, the following effects can be further obtained. That is, when yarn feeding package switching occurs, the machine control device 5 controls the autodoffer 10 to exchange the winding package Pw3a with a new winding bobbin Bw4, and controls the winding device 19 to perform winding. Start winding the thread Y onto the take-up bobbin Bw4. Thereby, even after the yarn Y is cut by the autodoffer 10, the winding package Pw can be continuously formed without stopping the operation of the weight 9.

Further, the yarn detection sensor 24 acquires switching information. As a result, it is possible to directly detect switching of the yarn supply package, thereby increasing the accuracy of the execution timing of the forming completion process.

Next, a modification of the above embodiment will be described. However, components having the same configuration as those in the embodiment described above will be designated by the same reference numerals and the description thereof will be omitted as appropriate.

(1) In the embodiment described above, it is assumed that the machine control device 5 stores information such as "none", "take-up bobbin exchange", and "thread cut" as options for processing when switching occurs. However, it is not limited to this. The machine control device 5 may store only one of the "winding bobbin replacement" and "thread cut" information as option information. Alternatively, the machine control device 5 may be configured to be able to execute only the "take-up bobbin exchange" or "thread cut" processing mode as the control mode for processing when switching occurs.

(2) In the embodiments described above, the machine control device 5 causes the winding device 19 to perform the marking operation. However, it is not limited to this. In place of the winding device 19, a marking device (marking section), not shown, capable of performing a marking operation may be provided. For example, the marking device may be configured to be able to color the yarn Y just before being wound around the rotating winding bobbin Bw. The marking device may be configured to be able to eject or spray a liquid such as ink toward the thread Y, for example.

(3) In the embodiments described above, the machine control device 5 stores the individual information of each winding package Pw in association with information regarding the determination made for each winding package Pw. However, it is not limited to this. The machine control device 5 does not need to store information regarding the determination made for each winding package Pw in the machine storage section 5c. In this case, a marking operation by the marking section is essential.

(4) In the embodiments described above, the machine control device 5 causes the winding device 19 to perform the marking operation. However, it is not limited to this. When the machine control device 5 associates the individual information of a predetermined winding package with the contamination information and stores it in the machine storage section 5c, the marking operation by the winding device 19 does not need to be performed.

(5) In the embodiments described above, it is assumed that the initial amount information is stored in the machine control device 5 as a common value for all the weights 9 of the false twisting machine 1. However, it is not limited to this. For example, a plurality of weights 9 may be divided into a plurality of groups. The machine control device 5 may be configured to be able to set initial amount information regarding each of the plurality of groups. Alternatively, the machine control device 5 may be configured such that initial amount information can be set for each weight 9. In this case, the machine control device 5 may be further configured to be able to acquire initial amount information (or information on the initial value of remaining time) corresponding to each of the plurality of yarn supply packages Ps. More specifically, each time a new yarn supply package Ps is attached to the yarn supply package holding section 20, the initial amount information etc. related to the new yarn supply package Ps may be individually acquired.

(6) In the embodiments described above, the operator is responsible for replacing the yarn supply package. However, it is not limited to this. The work of replacing the yarn feeding package may be performed by, for example, a creel robot (not shown). The yarn processing equipment 100 may include a winding package transport device (not shown) that collects and transports the formed winding package Pw.

(7) In the embodiments described above, the yarn detection sensor 24 having the first detection section 25 and the second detection section 26 detects the start and end of unwinding of the yarn Y from the yarn supply package Ps. I took it as a thing. However, it is not limited to this. For example, as shown in FIG. 9, the yarn feeding section 2a of the false twisting machine 1a may include a detection section 41 having a configuration different from that of the yarn detection sensor 24 in each weight 9a. The detection section 41 may include, for example, a supply sensor 42 and a knot sensor 43 (yarn connection section detection section or information acquisition section of the present invention). The supply sensor 42 is configured to be able to detect whether or not the yarn Y is being supplied from the first attachment section 22 (start of unwinding). The nodule portion sensor 43 is configured to be able to detect a nodule portion K that is placed stationary at a predetermined position. In such a configuration, when the knotted portion K moves from the predetermined position and the knotted portion K is no longer detected by the knotted portion sensor 43, it can be determined that yarn feeding package switching (unwinding completion) has occurred. In other words, in this modification, the nodule sensor 43 acquires the switching information. As a result, the movement of the nodule portion K can be directly detected, thereby increasing the accuracy of the execution timing of the formation completion process. Further, it can be known from which of the first mounting section 22 and the second mounting section 23 the yarn Y is being supplied at the time of yarn supply package switching, based on the detection result by the supply sensor 42. In this way, even when the detection result of the knotted portion K is used, it is possible to reliably know from which of the first attachment section 22 and the second attachment section 23 the yarn Y is being supplied. Note that the nodule portion sensor 43 may be configured to be able to detect the moving nodule portion K.

(8) In the embodiments described above, the machine control device 5 determines whether yarn supply package switching has occurred based on the detection result by the yarn detection sensor 24 or the knot sensor 43. In other words, the signal of the detection result corresponds to the switching information of the present invention. However, it is not limited to this. The machine control device 5 may use the calculation result of the remaining amount of yarn Y included in the package being unwound to determine whether yarn feeding package switching has occurred. For example, the machine control device 5 may determine that yarn feeding package switching has occurred when the calculated remaining amount becomes zero. In this case, the information on the remaining amount of yarn Y included in the package being unwound corresponds to the switching information of the present invention. The machine control device 5 corresponds to the information acquisition section of the present invention.

(9) In the embodiments described above, the machine control device 5 acquires information on the unwinding speed V based on information on the number of rotations of the first feed roller 11. However, it is not limited to this. As another example, the machine control device 5 includes information on the number of rotations of the second feed roller 16 and information on the ratio between the number of rotations of the first feed roller 11 and the number of rotations of the second feed roller 16. It may be remembered. The machine control device 5 may acquire information on the unwinding speed based on this information. Alternatively, the machine control device 5 may obtain information on the weight at which the yarn Y is unwound per unit time from the yarn feeding package Ps as the unwinding unit amount information instead of the unwinding speed information. Such information may be input into the machine control device 5 in advance by the operator, for example.

(10) In the embodiments described above, the machine control device 5 executes the process of recording the contamination information in order to reliably distinguish the predetermined winding package from other winding packages Pw. However, it is not limited to this. The machine control device 5 does not need to perform the process of recording the contamination information. The machine control device 5 notifies the operator that the predetermined winding package has been formed, for example, by displaying information indicating that the predetermined winding package has been formed on the display of the machine output section 5b. It's okay. In this case, the information does not need to be recorded.

(11) In the embodiments described above, the machine control device 5 controls each part of the false twisting machine 1. However, it is not limited to this. For example, the management device 101 may control each part of the false twisting machine 1. In this case, the management device 101 is included in the control unit of the present invention.

(12) In the embodiments described above, the information management section 110 includes a plurality of machine control devices 5 and management devices 101. However, it is not limited to this. That is, the information management unit 110 may include a computer device (not shown) other than the machine control device 5 and the management device 101. Alternatively, the information management section 110 may include only the machine control device 5 or the management device 101.

(13) Each yarn supply package holding section 20 may be configured to be able to hold three or more yarn supply packages Ps. In this case, the ends of the yarns Y included in three or more yarn supply packages Ps may be appropriately connected to each other.

(14) In the embodiments described above, the yarn processing equipment 100 includes a plurality of false twisting machines 1. However, it is not limited to this. The yarn processing equipment 100 may include only one false twisting machine 1. Furthermore, the management device 101 may not be provided. Further, although the false twisting machine 1 has a plurality of weights 9, the present invention is not limited to this. That is, the number of weights 9 that the false twisting machine 1 has may be one. In other words, the number of yarn supplying package holding sections 20 that the yarn supplying section 2 has may be one.

(15) The present invention may be applied to another yarn processing machine instead of the false twisting machine 1. For example, the present invention may be applied to an air processing machine (yarn processing machine) described in JP-A-2002-088605.

1 False twisting machine (yarn processing machine)
5 Machine control device (control unit, recording unit, information acquisition unit)
5c Machine memory section (memory section)
10 Autodoffer (cutting section, bobbin replacement section)
19 Winding device (marking section, recording section)
20 Yarn feeding package holding section 24 Yarn detection sensor (unpacking package detection section, information acquisition section)
27 Cutter (cutting part)
32 Traverse device (traverse section)
35 Traverse guide 36 Motor (guide drive unit)
37 Motor (rotation drive unit)
43 Knot part sensor (thread connection part detection part, information acquisition part)
Bw Winding bobbin Bw4 Winding bobbin (new winding bobbin)
K Knot part (thread connection part)
Ps Yarn feeding package Ps1 Yarn feeding package (1st yarn feeding package)
Ps2 yarn feeding package (second yarn feeding package)
Pw Winding package Pw3a Winding package (specified winding package)
Y thread

Claims (7)

A yarn processing machine configured to be able to process yarn unwound from a yarn supply package and wind it onto a winding bobbin,
The first yarn feeding package is configured to be able to hold a first yarn feeding package as the yarn feeding package, and a second yarn feeding package as the yarn feeding package, which is different from the first yarn feeding package, and When a yarn connection portion is formed by connecting the starting end of the yarn included in the yarn package and the terminal end of the yarn included in the second yarn supplying package, the yarn can be supplied without interruption. a yarn feeding package holding section;
It is possible to obtain switching information indicating the occurrence of yarn supply package switching, where the unwinding of the yarn from the first yarn supply package is completed, the yarn connecting portion begins to move, and the unwinding of the yarn from the second yarn supply package begins. an information acquisition unit configured with;
a winding device configured to wind the yarn around the winding bobbin to form a winding package;
a cutting section configured to be able to cut the yarn before being wound on the winding bobbin;
a recording unit configured to be able to perform a contamination information recording process for recording contamination information indicating contamination of the yarn connection portion into the winding package;
comprising a control unit;
The control unit includes:
When the information acquisition unit determines that the switching information has been acquired,
controlling the recording unit to execute the mixing information recording process for indicating that the yarn connecting portion is mixed into a predetermined winding package that is the winding package being formed when the yarn feeding package switching occurs;
The formation of the predetermined winding package in the winding device is completed by controlling the cutting unit to cut the yarn at a timing when the yarn connecting portion is mixed into the surface layer portion of the predetermined winding package. Characteristic yarn processing machine. The recording section includes:
a marking unit configured to perform a marking operation of attaching a mark indicating the contamination information to the winding package;
The control unit includes:
When the information acquisition unit determines that the switching information has been acquired, the marking unit is controlled to perform the marking operation on the predetermined winding package, thereby executing the contamination information recording process. The yarn processing machine according to claim 1, characterized in that: The marking section includes the winding device,
The winding device includes:
a rotation drive unit configured to be able to rotate the take-up package around a central axis of the take-up package;
a traverse section including a traverse guide for traversing the yarn, and a guide drive section configured to reciprocate the traverse guide along the axial direction of the winding package;
The control unit includes:
The marking operation is controlled by the winding device by controlling the rotation drive unit to rotate the winding package and controlling the traverse unit to stop the traverse guide at a predetermined position in the axial direction. 3. The yarn processing machine according to claim 2, wherein The recording section includes:
It has a storage section configured to be able to store information,
The yarn according to any one of claims 1 to 3, characterized in that the contamination information recording process is executed by associating the individual information of the predetermined winding package with the contamination information and storing the contamination information in the storage unit. Processing machine. a bobbin exchange configured to be able to exchange the predetermined winding package that has been formed in the winding device with a new winding bobbin as the winding bobbin, and configured to be able to thread the new winding bobbin; Equipped with a department,
The control unit includes:
After the predetermined winding package is formed,
controlling the bobbin exchange unit to exchange the predetermined winding package with the new winding bobbin, and threading the new winding bobbin;
The yarn processing machine according to any one of claims 1 to 4, characterized in that the winding device is controlled to wind the yarn onto the new winding bobbin. The information acquisition unit includes:
an unwinding package detection unit configured to be able to detect from which of the first yarn supply package and the second yarn supply package the yarn is being unwound;
The unwinding package detection unit detects the information indicating that the state in which the yarn is unwound from the first yarn supply package has been changed to the state in which the yarn is unwound from the second yarn supply package. The yarn processing machine according to claim 1, wherein the information is acquired as switching information. The information acquisition unit includes:
a thread connection part detection unit capable of detecting the thread connection part located at a predetermined position;
The yarn processing machine according to any one of claims 1 to 5, wherein the yarn connecting portion detection unit acquires information indicating that the yarn connecting portion has started to move as the switching information.

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