CN110629336A - Periodic unevenness detection method, fiber processing system, spinning machine, and storage medium - Google Patents
Periodic unevenness detection method, fiber processing system, spinning machine, and storage medium Download PDFInfo
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- CN110629336A CN110629336A CN201910333274.5A CN201910333274A CN110629336A CN 110629336 A CN110629336 A CN 110629336A CN 201910333274 A CN201910333274 A CN 201910333274A CN 110629336 A CN110629336 A CN 110629336A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
- D01H13/22—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to presence of irregularities in running material
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/32—Counting, measuring, recording or registering devices
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- Spinning Or Twisting Of Yarns (AREA)
Abstract
A periodic unevenness detecting method executed in a fiber processing system that generates a second fiber bundle by at least drafting a first fiber bundle generated by a preceding process machine by a subsequent process machine, a fiber processing system, a spinning machine, and a storage medium, includes: a first acquisition step of acquiring first information relating to a preceding process machine; a thickness unevenness detection step of detecting thickness unevenness information on periodic thickness unevenness of the second fiber bundle; and a periodic unevenness determining step of determining periodic unevenness generated in the second fiber bundle by the preceding-step machine based on the first information, the thickness unevenness information, and the total draft ratio in the subsequent-step machine.
Description
Technical Field
One aspect of the present invention relates to a periodic unevenness detecting method, a fiber processing system, a spinning machine, and a periodic unevenness detecting program.
Background
Conventionally, a spinning machine including a draft device for drafting a fiber bundle, a spinning device for twisting the drafted fiber bundle to generate a yarn, and a winding device for winding the yarn to generate a package is known (for example, see japanese patent application laid-open nos. 2014-009422 and 07-138822). Such a spinning machine is supplied with a fiber bundle processed by a preceding machine such as a drawing frame.
In the fiber bundle supplied to the post-process machine such as the spinning machine, thickness unevenness of a short wavelength (high frequency) that cannot be detected by the measuring instrument may be included. Such unevenness may appear as periodic unevenness after being drawn by a post-process machine. In order to improve the quality of the fiber bundle produced by the post-process machine, it is preferable to reduce the occurrence of such periodic unevenness.
Disclosure of Invention
An object of one aspect of the present invention is to provide a periodic unevenness detecting method, a fiber processing system, a spinning machine, and a periodic unevenness detecting program, which can improve the quality of a fiber bundle.
A periodic unevenness detecting method according to an aspect of the present invention is a periodic unevenness detecting method executed in a fiber processing system that generates a second fiber bundle by at least drafting a first fiber bundle generated by a preceding-process machine by a subsequent-process machine, the periodic unevenness detecting method including: a first acquisition step of acquiring first information relating to a preceding process machine; a thickness unevenness detection step of detecting thickness unevenness information on periodic thickness unevenness of the second fiber bundle; and a periodic unevenness determining step of determining periodic unevenness generated in the second fiber bundle by the preceding-step machine based on the first information, the thickness unevenness information, and the total draft ratio in the subsequent-step machine.
Therefore, for example, when the periodic unevenness caused by the preceding process machine is determined, the occurrence of the periodic unevenness can be avoided by changing the operating conditions of the preceding process machine or by eliminating the problem occurring in the preceding process machine. Therefore, according to the periodic unevenness detecting method, the quality of the fiber bundle can be improved.
In the periodic unevenness determining step, the periodic unevenness may be determined using a frequency distribution or a wavelength distribution of the periodic unevenness of the second fiber bundle as the thickness unevenness information. In this case, since the interval of the periodic unevenness included in the first fiber bundle is increased by drafting the first fiber bundle by the post-process machine, the periodic unevenness caused by the pre-process machine can be more appropriately determined.
When a distribution calculated based on the fineness, the average thickness, and the ratio of the fiber length of the first fiber bundle and the total draft ratio is set as a reference distribution, the periodic unevenness determining step may determine the periodic unevenness based on a result of comparing the reference distribution with the frequency distribution or a result of comparing the reference distribution with the wavelength distribution. In this case, the periodic unevenness caused by the preceding-process machine can be determined more accurately by also using the reference distribution.
In the periodic unevenness determining step, the periodic unevenness may be determined by determining whether or not a peak corresponding to the periodic unevenness appears in the frequency distribution or the wavelength distribution. In this case, the periodic unevenness caused by the pre-process machine can be determined with higher accuracy.
The periodic unevenness detecting method according to the aspect of the present invention may further include a first output step of outputting the frequency distribution or the wavelength distribution to a display screen, and in the first output step, the peak appearing in the frequency distribution or the wavelength distribution may be displayed in a display form different from a display form of a portion other than the peak in the frequency distribution or the wavelength distribution. In this case, the operator who visually recognizes the display screen can easily see the peak appearing in the frequency distribution or the wavelength distribution.
In the periodic unevenness determining step, the cause of the periodic unevenness may be estimated based on the first information and the thickness unevenness information. In this case, the cause of the periodic unevenness caused by the pre-process machine can be known.
The periodic unevenness detecting method according to one aspect of the present invention may further include a second acquiring step of acquiring second information relating to the post-process machine, and the periodic unevenness determining step may determine the periodic unevenness based on the second information. In this case, since the periodic unevenness caused by the preceding-process machine can be distinguished from the periodic unevenness caused by the subsequent-process machine, the periodic unevenness caused by the preceding-process machine can be specified with higher accuracy.
The former step machine may draft the fiber bundle to generate the first fiber bundle, and the latter step machine may draft the first fiber bundle at a draft ratio higher than that in the former step machine. In this case, since the periodic unevenness due to the preceding process machine is likely to appear, the periodic unevenness due to the preceding process machine can be more appropriately determined.
The post-process machine may include: a drafting device for drafting the first fiber bundle; a spinning device that twists the first fiber bundle drafted by the draft device to produce a yarn as a second fiber bundle; and a winding device for winding the yarn to form a package. In this case, since the draft ratio in such a post-process machine is generally high, the periodic unevenness caused by the pre-process machine can be determined more appropriately.
The pre-process machine may include a plurality of roller pairs each having a driving roller and a driven roller, and the first fiber bundle may be generated by drafting the fiber bundle supplied to the pre-process machine by the plurality of roller pairs, and the first information may include at least one of a diameter of the driving roller, a number of teeth of pulleys of the driving roller, a pitch of grooves formed in the driving roller, a number of teeth of a driving gear of the driving roller, a contact pressure between the driving roller and the driven roller, and a diameter of a can accommodating the fiber bundle generated by the pre-process machine. In this case, since it is possible to predict the cycle in which the periodic unevenness occurs, the periodic unevenness caused by the preceding process machine can be determined more appropriately.
The periodic unevenness detecting method according to one aspect of the present invention may further include a second output step of outputting information for eliminating the periodic unevenness when the periodic unevenness is determined in the periodic unevenness determining step. In this case, when the periodic unevenness caused by the pre-process machine is identified, it is possible to urge to perform a countermeasure for avoiding the occurrence of the periodic unevenness.
In the first acquisition step, the first information may be acquired by at least one of an operation input and a communication. Alternatively, in the first acquiring step, the first information may be acquired by reading, by a reading device, information of an information tag provided in a can in which the first fiber bundle is accommodated.
A spinning machine according to an aspect of the present invention is a spinning machine that executes the periodic unevenness detecting method as a post-process machine, and includes: a drafting device for drafting the first fiber bundle; a spinning device that twists the drafted first fiber bundle to produce a yarn as a second fiber bundle; a winding device for winding the yarn to form a package; a first acquisition unit that acquires first information; a thickness unevenness detection unit for detecting thickness unevenness information; and a periodic unevenness specifying unit that specifies periodic unevenness occurring in the yarn by the preceding-process machine, based on the first information, the thickness unevenness information, and the total draw ratio. According to this spinning machine, the quality of the fiber bundle can be improved for the above-described reasons.
The spinning machine according to one aspect of the present invention may include a plurality of spinning units, each of the plurality of spinning units may include a draft device, a spinning device, and a winding device, and the periodic unevenness detecting unit may determine the periodic unevenness for each of the plurality of spinning units. In this case, the quality of the fiber bundle can be improved in each of the plurality of spinning units.
The spinning machine according to one aspect of the present invention may further include a drawing device that draws the yarn from the spinning device, the draft device includes at least a rear roller, an intermediate roller, and a front roller, and the periodic unevenness determining unit may use a difference between circumferential speeds of the rear roller and the drawing device or a difference between circumferential speeds of the rear roller and the front roller as the total draft ratio.
A fiber processing system according to an aspect of the present invention includes: a pre-process machine that generates a first fiber bundle; a post-process machine for generating a second fiber bundle by at least drawing the first fiber bundle; a first acquisition unit that acquires first information relating to a preceding process machine; a thickness unevenness detecting section for detecting thickness unevenness information on the periodic thickness unevenness of the second fiber bundle; and a periodic unevenness determining unit that determines periodic unevenness occurring in the second fiber bundle by the preceding-step machine, based on the first information, the thickness unevenness information, and the total draft ratio in the subsequent-step machine. According to this fiber processing system, the quality of the fiber bundle can be improved for the above-described reasons.
A periodic unevenness detecting program according to an aspect of the present invention is configured to cause a computer to execute, in a fiber processing system that generates a second fiber bundle by at least drafting a first fiber bundle generated by a preceding-step machine by a subsequent-step machine: a process of acquiring first information relating to a preceding process machine; processing for detecting thickness unevenness information relating to periodic thickness unevenness of the second fiber bundle; and a process for determining the periodic unevenness generated in the second fiber bundle by the preceding-step machine based on the first information, the thickness unevenness information, and the total draft ratio in the subsequent-step machine. According to the periodic unevenness detecting program, the quality of the fiber bundle can be improved for the above-described reasons.
According to one aspect of the present invention, it is possible to provide a periodic unevenness detecting method, a fiber processing system, a spinning machine, and a periodic unevenness detecting program that can improve the quality of a fiber bundle.
Drawings
Fig. 1 is a block diagram showing a configuration of a fiber processing system according to an embodiment.
Fig. 2 is a front view of the rotor spinning machine.
Fig. 3 is a graph showing an example of a frequency distribution and a reference distribution.
Fig. 4 is a diagram showing a periodic unevenness detection program according to an embodiment.
Fig. 5 is a schematic diagram for explaining a modification.
Detailed Description
Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the same reference numerals are used for the same or corresponding elements, and overlapping description is omitted.
[ fiber treatment System ]
As shown in fig. 1, a fiber processing system 100 according to one embodiment includes a plurality of carders 110, a plurality of drawing frames 130, and a plurality of rotor spinning machines 150.
The carding machine 110 combs (carding) the lap produced by the opening and picking machine in a step preceding the carding step, to produce a fiber bundle. For example, the carding machine 110 separates fibers by cutting a sheet-like lap with a guide bar, and removes trash, short fibers, and the like contained in the lap. Thereafter, the carding machine 110 combines and aggregates fibers remaining after the removal of the trash and short fibers in parallel to produce a ribbon-shaped fiber bundle (carded sliver). The carding machine 110 accommodates the generated fiber bundle in a can (e.g., a cylindrical container). The fiber bundle generated by the carding machine 110 is transported to the next step while being contained in the can.
The drawing frame 130 draws the fiber bundle generated by the carding machine 110. The drawing frame 130 has a draft device 131. The draft device 131 includes a plurality of (e.g., 3 pairs of) roller pairs (first roller pair) arranged along the traveling direction of the fiber bundle. Each roller pair includes a driving roller and a driven roller. The drawing frame 130 drafts (stretches) the fiber bundle by these rollers. For example, the drawing frame 130 draws 6 or 8 fiber bundles together 6 or 8 times, straightens the fibers, and removes unevenness in the thickness of the fiber bundles. The drawing frame 130 accommodates the drawn fiber bundle (first fiber bundle) in the can. The fiber bundle drawn by the drawing frame 130 is transferred to the next process in a state of being accommodated in the can.
The air spinning machine 150 performs fine spinning on the fiber bundle drawn by the drawing frame 130 to generate a yarn (second fiber bundle). The air-jet spinning machine 150 drafts and twists the fiber bundle drawn by the drawing frame 130 to generate a yarn, and winds the yarn to form a package. The air spinning machine 150 is, for example, an air jet spinning machine or an open-end spinning machine. The air jet spinning machine produces a yarn by spinning a fiber bundle with a whirling air flow. The open-end spinning device separates fibers of a fiber bundle by a carding roller or an air flow, and then twists the fibers while aggregating the fibers again to produce a yarn.
In such a fiber treatment system 100, a fiber treatment method is implemented, and the fiber treatment method includes: a carding step of generating a fiber bundle using a carding machine 110; a drawing step of drawing the fiber bundle generated in the carding step by using a drawing frame 130; and an air spinning step of spinning the fiber bundle drawn in the drawing step using an air spinning machine 150 to produce a yarn.
In the fiber processing system 100, the fiber bundle generated by the carding machine 110 and supplied toward the air spinning machine 150 passes through the drawing frame 130 a plurality of times. In the fiber processing system 100, the fiber bundle generated by the 2 carders 110 is supplied to the 1 drawing frame 130, and the fiber bundle drawn by the 1 drawing frame 130 is supplied to the 2 air-jet spinning machines 150. The 2 carders 110, the 1 drawing frame 130, and the 2 air-jet spinning machines 150 construct units having the same processing path of the fiber in the fiber processing system 100.
The fiber processing system 100 may include: a winding device for performing a winding process; and a combing machine for performing the combing process. In this case, the fiber processing method includes a lap step and a combing step. In the lap winding step, the 18 to 24-band fiber bundles generated by the carding machine 110 are formed into 1 sheet and wound up to generate a lap. In the combing step, the sliver lap produced by the sliver lap apparatus is cut by a guide bar, trash and short fibers are removed, and long fibers remaining after removal are combined in parallel to produce a uniform fiber bundle. In this case, the fiber bundle generated by the combing process is supplied to the drawing frame 130.
Instead of the air-jet spinning machine 150, the fiber processing system 100 may include a roving machine for performing a roving process, a ring spinning machine for performing a spinning process, and an automatic winder for performing a winding process. In this case, the fiber processing method includes a roving step, a spinning step, and a winding step instead of the air-jet spinning step. In the roving step, the fiber bundle drawn by the drawing frame 130 is drawn and twisted to produce a roving yarn. In the spinning step, a roving yarn produced by a roving machine is drawn and twisted to produce a yarn. In the winding step, the yarn produced by the ring spinning machine is wound up to form a package.
The fiber processing system 100 may be a structure in which the fiber bundle passes only 1 pass of 1 pass at the drawing frame 130. In the fiber processing system 100, it is also possible to form: the fiber bundle generated by 1 carding machine 110 is supplied to 1 drawing frame 130, and the fiber bundle generated by 1 drawing frame 130 is supplied to 1 rotor spinning machine 150. As described above, the processing path of the fibers by the carding machine 110, the drawing frame 130, and the rotor spinning machine 150 is not limited, and the drawing frame 130 that draws the fiber bundle supplied to the rotor spinning machine 150 last may be determined. The carding machine 110 can also have a drafting device. The draft device is provided, for example, on the downstream side of the carding machine 110, and drafts the generated fiber bundle. The drafting device opens the fiber bundle to improve the parallelism of the fiber bundle. In this case, the carding machine 110 accommodates the fiber bundle drafted by the draft device in the can.
[ air-jet spinning machine ]
The structure of the air spinning machine 150 will be further described with reference to fig. 2. As shown in fig. 2, the air-jet spinning machine 150 includes a plurality of spinning units 2, a yarn joining cart 3, a doffing cart (not shown), a first end frame 4, a second end frame 5, and a plurality of unit controllers (periodic unevenness determining units) 10.
The plurality of spinning units 2 are arranged in a row. Each spinning unit 2 generates a yarn Y and winds it into a package P. When the yarn Y is cut in a certain spinning unit 2 or the yarn Y is broken due to some cause, the yarn splicing cart 3 performs a yarn splicing operation in the spinning unit 2. When a package P is full in a spinning unit 2, the doffing cart doffs the package P and supplies a new bobbin B to the spinning unit 2.
A recovery device for recovering waste fibers, waste yarn, and the like generated in the spinning unit 2 is housed in the first end frame 4. The second end frame 5 houses an air supply unit for adjusting the air pressure of the compressed air supplied to the air spinning machine 150 and supplying air to each part of the air spinning machine 150, a drive motor for supplying power to each part of the spinning unit 2, and the like.
The second end frame 5 is provided with a body control device (first acquisition unit, second acquisition unit) 5a and a touch panel screen 5 b. The machine body control device 5a centrally manages and controls each part of the air spinning machine 150. The touch panel screen 5b can display information and the like related to at least one of the setting content and the state of the spinning unit 2. The operator can perform the setting operation of the spinning unit 2 by performing an appropriate operation input using the button 5c displayed on the touch panel screen 5 b.
The unit controller 10 is provided one for each predetermined number of spinning units 2. The unit controller 10 controls the operation of the spinning unit 2. The unit controller 10 is, for example, a computer, and includes: a processor (e.g., a CPU) that executes an operating system, an application program, and the like; a storage unit composed of a ROM [ Read Only Memory ], a RAM [ Random Access Memory ], and a hard disk; and a communication control unit configured by a network card or a wireless communication module. Data or a database necessary for processing is stored in the storage unit of the unit controller 10. The unit controller 10 is communicably connected to the machine body control device 5a, and controls the operation of each part of the spinning unit 2 based on the operating conditions input to the machine body control device 5 a.
Each spinning unit 2 includes, in order from the upstream side in the traveling direction of the yarn Y, a draft device 6, a spinning device 7, a yarn monitoring device (thickness unevenness detecting section, periodic unevenness detecting section) 8, a tension sensor 9, a yarn accumulating device (drawing device) 11, a waxing device 12, and a winding device 13.
The draft device 6 drafts the fiber bundle (sliver, first fiber bundle) S generated by the drawing frame 130. The draft device 6 includes a rear roller (draft roller), a third roller (draft roller), an intermediate roller (draft roller), and a front roller (draft roller) in this order from the upstream side in the traveling direction of the fiber bundle S, and drafts the fiber bundle S by these rollers. That is, the draft device 6 has a plurality of roller pairs (second roller pairs), and the fiber bundle S is drafted by these roller pairs. The number of the roller pairs (second roller pairs) provided in the draft device 6 may be 3 or 5. The draft device 6 drafts the fiber bundle S at a draft ratio higher than that in the drawing frame 130.
The spinning device 7 twists the fiber bundle S drafted by the draft device 6 with a whirling air flow to generate a yarn Y.
The yarn accumulating device 11 draws the yarn Y from the spinning device 7. The yarn pool device 11 eliminates slack of the yarn Y between the spinning device 7 and the winding device 13.
The waxing device 12 waxes the yarn Y between the yarn accumulating device 11 and the winding device 13. The waxing device 12 may be omitted. When the yarn Y is not waxed, the waxing device 12 may not be omitted, and the wax may be removed from the waxing device 12.
The winding device 13 winds the yarn Y around the bobbin B to form a package P.
The yarn monitoring device 8 monitors the state of the running yarn Y between the spinning device 7 and the yarn accumulating device 11. The yarn monitoring device 8 detects thickness unevenness information (periodic unevenness information) regarding the periodic thickness unevenness of the yarn Y. The thickness unevenness information is, for example, information indicating a temporal change in the thickness of the yarn Y. The yarn monitoring device 8 may be configured to include any type of sensor. For example, an optical sensor that irradiates light on the yarn Y and detects a change in the thickness of the yarn Y with time by a change in the amount of received light may be used, or a capacitance sensor that detects a change in the thickness of the yarn Y with time by a change in capacitance by passing the yarn through an electric field may be used.
The yarn monitoring device 8 detects the presence or absence of a yarn defect based on the monitoring result. The yarn monitoring device 8 detects, for example, a yarn defect, at least one of an abnormal thickness of the yarn Y and a foreign substance contained in the yarn Y.
The yarn monitoring device 8 detects the presence or absence of the yarn Y in the yarn path of the yarn Y. The yarn monitoring device 8 transmits a signal indicating the detection result to the unit controller 10.
The tension sensor 9 measures the tension of the running yarn Y between the spinning device 7 and the yarn accumulating device 11, and sends a tension measurement signal to the unit controller 10. The tension sensor 9 may be omitted.
When it is determined that there is an abnormality in the unit controller 10 based on at least one of the detection result of the yarn monitoring device 8 and the detection result of the tension sensor 9, the yarn Y is cut in the spinning unit 2.
[ periodic unevenness detecting method ]
Next, a periodic unevenness detecting method performed in the fiber processing system 100 will be described. As described above, in the fiber processing system 100, the yarn Y (second fiber bundle) is generated by drafting and twisting the fiber bundle S (first fiber bundle) generated by the drawing frame 130 by the air-jet spinning machine 150. That is, the fiber processing system 100 includes a drawing frame 130 as a pre-process machine and a rotor spinning machine 150 as a post-process machine.
Briefly, in the periodic unevenness detecting method, first information relating to the drawing frame 130 is acquired (first acquiring step). The thickness unevenness information of the yarn Y is detected by the air-jet spinning machine 150 (thickness unevenness detecting step). The periodic unevenness generated in the yarn Y by the drawing frame 130 is detected (determined) based on the first information, the thickness unevenness information, and the total draft ratio in the rotor spinning machine 150 (periodic unevenness detecting step, periodic unevenness determining step).
Such periodic unevenness may be caused by, for example, a mechanical structure of the drawing frame 130, or may be caused by defects such as damage to components of the drawing frame 130 or eccentricity of the components. When the periodic unevenness caused by the drawing frame 130 is detected, the occurrence of the periodic unevenness can be reduced by, for example, changing the draft condition (operating condition) of the drawing frame 130 or eliminating a trouble occurring in the drawing frame 130.
Further, in the present embodiment, the second information on the rotor spinning machine 150 is acquired (second acquisition step). By using the second information in addition to the first information, it is possible to detect the periodic unevenness caused by the drawing frame 130 separately from the periodic unevenness caused by the rotor spinning machine 150. As a result, the periodic unevenness caused by the drawing frame 130 can be detected with higher accuracy.
The periodic unevenness detecting method according to the present embodiment includes a first acquiring step, a second acquiring step, a thickness unevenness detecting step, a periodic unevenness detecting step, a first outputting step, and a second outputting step. In the following, the description is given focusing on 1 spinning unit 2 in the air-jet spinning machine 150, but the periodic unevenness detecting method is also executed in the same manner in the other spinning units 2.
In the first acquisition step, first information relating to the drawing frame 130 is acquired by the body control device 5 a. For example, the body control device 5a acquires the first information by receiving information input by an operation of the touch panel screen 5b by the operator. The first information is information related to the cause of unevenness that causes short-wavelength (high frequency) unevenness to occur in the fiber bundle S generated by the drawing frame 130. That is, the first information is information related to a cause of the yarn Y generated by the spinning unit 2 to generate the periodic unevenness. The first information includes at least one of information on a mechanical structure of the drawing frame 130, a draft condition, and the like, for example.
The first information includes, for example, at least one of the diameter of the drive roller, the number of teeth of the pulley of the drive roller, the pitch of the grooves formed in the drive roller (the interval between the convex portions forming the grooves), the number of teeth of the drive gear of the drive roller, and the contact pressure between the drive roller and the driven roller. In other words, the first information may not include any of the above information. The driving roller here is, for example, a driving roller (front lower roller) of a roller pair disposed on the most downstream side in the traveling direction of the fiber bundle among roller pairs included in the draft device 131, but may be a driving roller of another roller pair. The first information may include the diameter of the can that houses the fiber bundle generated by the drawing frame 130. This is because: unevenness may occur in the fiber bundle due to the can storage.
In the second acquisition step, second information on the spinning unit 2 is acquired by the body control device 5 a. For example, the body control device 5a receives information input by an operator operating the touch panel screen 5b, and thereby acquires the second information. The second information is information related to a cause of the yarn Y causing the periodic unevenness, and includes at least one of information related to a mechanical structure of the spinning unit 2, draft conditions, and the like, for example. More specifically, the information on the mechanical structure of the spinning unit 2 is, for example, the diameter of the draft roller, the number of teeth of the pulleys of the lower roller, the groove pitch of the lower roller, and the number of steps of the drive motor of the lower roller. The information on the draft conditions is, for example, a draft ratio (total draft ratio, etc.), a draft speed, and a draft gauge (distance between the pair of draft rollers). The second acquisition step may be performed before or after the first acquisition step, or may be performed simultaneously with the first acquisition step. The total draft ratio is, for example, a difference in circumferential velocity between the rear roller of the draft device 6 and the yarn accumulating device 11 (specifically, the yarn accumulating roller of the yarn accumulating device 11), or a difference in circumferential velocity between the rear roller and the front roller in the draft device 6.
In the thickness unevenness detecting step, the thickness unevenness information of the yarn Y is detected by the yarn monitoring device 8. In the periodic unevenness detecting step, the periodic unevenness caused by the drawing frame 130 is detected (determined) by the unit controller 10.
The periodic unevenness detecting step will be further described with reference to fig. 3. In the periodic unevenness detecting step, the periodic unevenness caused by the drawing frame 130 is detected using the frequency distribution 21 of the periodic unevenness with respect to the thickness of the yarn Y. The frequency distribution 21 is calculated based on the thickness unevenness information of the yarn Y detected by the yarn monitoring device 8. The frequency distribution 21 is compared with a reference distribution 22. The reference distribution 22 is an ideal distribution corresponding to a frequency distribution that should be obtained. The frequency distribution 21 and the reference distribution 22 are, for example, distributions (spectrograms) shown on a graph having a frequency on the horizontal axis and intensity (number of counts) on the vertical axis.
The reference distribution 22 can be calculated based on, for example, the fineness of the fiber bundle S supplied to the spinning unit 2 (the thickness of the fibers constituting the fiber bundle S), the average thickness (the average thickness of the fiber bundle S itself), and the ratio of the fiber lengths (the ratio of the fiber lengths of the fibers included in the fiber bundle S). The fineness, average thickness, and ratio of the fiber length of the fiber bundle S are measured by, for example, a predetermined measuring instrument, and are input to the body control device 5a by an operation input of an operator via the touch panel screen 5 b. The reference distribution 22 may be calculated based on draft conditions (for example, draft ratio) of the spinning unit 2. In fig. 3, the distribution is shown by a curve, but the distribution may be a bar graph.
As shown in fig. 3, the reference distribution 22, which is an ideal distribution, also includes a certain unevenness (draft unevenness). In the actual frequency distribution 21, a peak such as the peak 23 may appear. Such a peak 23 may be generated by the drawing frame 130 or the spinning unit 2. When the peak value 23 appears, the unit controller 10 determines whether the peak value 23 is the periodic unevenness generated by the drawing frame 130 or the periodic unevenness generated by the spinning unit 2 based on the first information and the second information.
For example, the unit controller 10 sets a first frequency peak corresponding to the first information and a second frequency peak corresponding to the second information based on the first information acquired by the first acquisition step and the second information acquired by the second acquisition step. The first frequency peak may be 1 or more. The second frequency peak may be 1 or more. When the peak value 23 corresponds to at least one of the first frequency peak values, the unit controller 10 determines that the peak value 23 is a periodic unevenness generated by the drawing frame 130. When the peak value 23 corresponds to at least one of the second frequency peak values, the unit controller 10 determines that the peak value 23 is a periodic unevenness caused by the spinning unit 2. By this processing, the periodic unevenness caused by the drawing frame 130 can be detected by being distinguished from the periodic unevenness caused by the spinning unit 2.
In the periodic unevenness detecting step, the cause of the periodic unevenness caused by the drawing frame 130 may be estimated. The value of the peak value 23 detected by the rotor spinning machine 150 differs depending on the mechanical configuration of the drawing frame 130, the draft condition, and the like. For example, the unit controller 10 sets different frequency peak values corresponding to the respective pieces of the first information (the diameter of the drive roller, the number of teeth of the pulley of the drive roller, and the like) based on the first information acquired by the first acquisition step, and determines to which frequency peak value the peak value 23 corresponds. This makes it possible to estimate a specific cause of the periodic unevenness caused by the drawing frame 130.
In the first output step, the frequency distribution 21 and the reference distribution 22 are output to the display screen. For example, the unit controller 10 controls the touch panel screen 5b so that the frequency distribution 21 and the reference distribution 22 are displayed. That is, in this case, the first output step is executed by the touch panel screen 5b as the first output unit. In the first output step, the peak 23 appearing in the frequency distribution 21 is displayed in a display form different from that of the portion other than the peak 23 in the frequency distribution 21. For example, the peak value 23 and the part other than the peak value 23 are displayed with different colors, types, thicknesses, and the like of the bars. This allows the operator who visually recognizes the touch panel screen 5b to easily see the peak 23 appearing in the frequency distribution 21.
In the second output step, when the periodic unevenness due to the drawing frame 130 is detected in the periodic unevenness detecting step, information for removing the periodic unevenness is output. For example, the unit controller 10 controls the touch panel screen 5b to display information for eliminating the periodic unevenness. That is, in this case, the second output step is executed by the touch panel screen 5b as the second output unit. The output information may be, for example, a display indicating the cause (generation site) of the generation of the periodic unevenness, or a method or a suggestion for eliminating the detected periodic unevenness.
2 specific examples related to periodic unevenness detection will be described. As a first example, there is a case where: the fiber bundle S supplied to the spinning unit 2 includes unevenness (potential unevenness) of about 2mm caused by the pitch of the grooves formed in the front roller of the draft device 131 of the draw frame 130. Such unevenness, if drafted at, for example, a total draft ratio of 200 by the spinning unit 2, is a periodic unevenness of 400mm and appears on the yarn Y, and therefore can be detected by the yarn monitoring device 8. In the periodic unevenness detecting method of the present embodiment, such periodic unevenness can be detected. In this case, in the second output step, for example, a display for urging the change of the draft condition of the drawing frame 130 is output to the touch panel screen 5 b.
As a second example, there is a case where: the fiber bundle S supplied to the spinning unit 2 includes unevenness due to damage or eccentricity caused by a front roller of the draft device 131 of the drawing frame 130. Such unevenness is periodically uneven when the yarn is drafted by the spinning unit 2 and appears on the yarn Y, and therefore can be detected by the yarn monitoring device 8. In the periodic unevenness detecting method of the present embodiment, such periodic unevenness can be detected. In this case, in the second output step, for example, a display for urging repair of damage or eccentricity of the front roller is output to the touch panel screen 5 b.
[ periodic unevenness detecting program ]
As shown in fig. 4, a periodic unevenness detection program C is stored in the storage unit 10a of the cell controller 10. The storage unit 10a is a non-transitory computer-readable storage medium storing the periodic unevenness detecting program C. The unit controller 10 reads and executes the periodic unevenness detecting program C into the processor, thereby realizing the periodic unevenness detecting method. The periodic unevenness detecting program C includes a first acquiring block C1, a second acquiring block C2, a thick-thin unevenness detecting block C3, a periodic unevenness detecting block C4, a first output block C5, and a second output block C6. The processing realized by executing the first acquisition block C1, the second acquisition block C2, the thickness unevenness detection block C3, the periodic unevenness detection block C4, the first output block C5, and the second output block C6 is the same as the processing of the first acquisition step, the second acquisition step, the thickness unevenness detection step, the periodic unevenness detection step, the first output step, and the second output step described above, respectively. The periodic unevenness detecting program C may be provided by being fixedly stored in a tangible storage medium such as a CD-ROM, a DVD-ROM, or a semiconductor memory. Alternatively, the periodic unevenness detecting program C may be supplied as a data signal via a communication network.
[ Effect and Effect ]
As described above, in the periodic unevenness detecting method of the present embodiment, the periodic unevenness generated in the yarn Y by the draw frame 130 is detected based on the first information on the draw frame 130 that produces the fiber bundle S and the thickness unevenness information of the yarn Y generated by the spinning unit 2. Therefore, for example, when the periodic unevenness caused by drawing frame 130 is detected, the occurrence of the periodic unevenness can be avoided by changing the operating conditions of drawing frame 130 or eliminating a problem occurring in drawing frame 130. Therefore, according to the periodic unevenness detecting method of the present embodiment, the quality of the fiber bundle (the fiber bundle S and the yarn Y) can be improved.
Further, according to this periodic unevenness detecting method, by constantly monitoring the yarn Y produced by each spinning unit 2, periodic unevenness occurring in the yarn Y by the drawing frame 130 can be detected. That is, in the case of using a general measuring instrument, the measurement can be performed only on a part of the fiber bundle S before being drafted by the rotor spinning machine 150, but in the periodic unevenness detecting method of the present embodiment, the detection can be performed on the whole of the fiber bundle S drafted by the rotor spinning machine 150.
In the periodic unevenness detecting step, the periodic unevenness caused by the drawing frame 130 is detected as the thickness unevenness information by using the frequency distribution 21 of the periodic thickness unevenness for the yarn Y. Thus, by drafting the fiber bundle S by the spinning unit 2, the interval of the periodic unevenness included in the fiber bundle S becomes large, and therefore the periodic unevenness caused by the drawing frame 130 can be more appropriately detected.
In the periodic unevenness detecting step, when the distribution calculated based on the fineness, the average thickness, and the ratio of the fiber length of the fiber bundle S, and the total draft ratio is the reference distribution 22, the periodic unevenness caused by the drawing frame 130 is detected based on the result of comparing the reference distribution 22 with the frequency distribution 21. Thus, periodic unevenness due to the drawing frame 130 can be detected more accurately by also using the reference distribution 22.
In the periodic unevenness detecting step, whether or not a peak corresponding to the periodic unevenness appears in the frequency distribution 21 is determined to detect the periodic unevenness. This enables periodic unevenness due to the drawing frame 130 to be detected with higher accuracy.
In the first output step, the peak 23 appearing in the frequency distribution 21 is displayed in a display form different from that of the portion other than the peak 23 in the frequency distribution 21. This makes it possible for an operator who visually observes the display screen to easily see the peak 23 appearing in the frequency distribution 21.
In the periodic unevenness detecting step, the cause of the periodic unevenness caused by the drawing frame 130 is estimated based on the first information and the thickness unevenness information. This makes it possible to know the cause of the periodic unevenness caused by the drawing frame 130. Such a periodic unevenness detection method is advantageous in that it is possible to know the cause of the periodic unevenness caused by the drawing frame 130 without having a deep knowledge about the drawing frame 130 and the periodic unevenness caused by the drawing frame 130 (even if the operator is not skilled).
In the periodic unevenness detecting step, periodic unevenness caused by the drawing frame 130 is also detected based on the second information. This makes it possible to distinguish between periodic unevenness due to the drawing frame 130 and periodic unevenness due to the rotor spinning machine 150, and thus it is possible to detect periodic unevenness due to the drawing frame 130 with higher accuracy.
The spinning unit 2 drafts the fiber bundle S at a draft ratio higher than that in the drawing frame 130. Thus, since the periodic unevenness caused by the drawing frame 130 is easily present, the periodic unevenness caused by the drawing frame 130 can be more appropriately detected.
The spinning unit 2 includes: a draft device 6 for drafting the fiber bundle S; a spinning device 7 for twisting the fiber bundle S drafted by the draft device 6 to produce a yarn Y; and a winding device 13 for winding the yarn Y to form a package P. In the spinning unit 2, since the total length of the yarn Y wound in the package P is increased and the draft ratio is also higher than that of the drawing frame 130, the periodic unevenness caused by the drawing frame 130 can be detected more appropriately.
The first information includes at least one of the diameter of the driving roller, the number of teeth of the pulley of the driving roller, the pitch of the groove formed in the driving roller, the number of teeth of the driving gear of the driving roller, the contact pressure between the driving roller and the touch roller, and the diameter of the can accommodating the fiber bundle generated by the drawing frame 130. This can predict the cycle in which the periodic unevenness will occur, and therefore, the periodic unevenness caused by the drawing frame 130 can be detected more appropriately.
The periodic unevenness detecting method of the present embodiment includes a second output step of outputting information for eliminating the periodic unevenness when the periodic unevenness due to the drawing frame 130 is detected in the periodic unevenness detecting step. Thus, when the periodic unevenness caused by the drawing frame 130 is detected, it is possible to urge a countermeasure for avoiding the occurrence of the periodic unevenness.
In the first acquisition step, first information is acquired by an operation input of an operator.
The spinning unit 2 includes a plurality of roller pairs (second roller pairs), and the fiber bundle S is drafted by the roller pairs. Thus, the fiber bundle S is drawn so as not to be scattered, and therefore, the periodic unevenness caused by the drawing frame 130 can be reliably detected.
While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, the material and shape of each structure are not limited to the above-described material and shape, and various materials and shapes can be used.
In the first acquisition step of the above embodiment, the body control device 5a acquires the first information by receiving the operation input, but may acquire the first information by wireless communication or wired communication instead of or in addition to the operation input. For example, the first information may be acquired from the drawing frame 130 through wireless communication. In this case, the wireless communication unit that performs wireless communication functions as a first acquisition unit that executes the first acquisition step. In the second acquisition step, the second information may be acquired by wireless communication or wired communication instead of or in addition to the operation input. Instead of the touch panel screen 5b, a keyboard, a push button, or the like may be used.
In the first acquisition step of the above embodiment, as shown in fig. 5, the first information may be acquired by reading information of the information tag 32 provided on the can 31 that houses the fiber bundle S by the reading device 33. The reading device 33 may be provided in each spinning unit 2, or 1 reading device may be provided in the rotor spinning machine 150. The writing of information to the information tag 32 is performed, for example, by the draw frame 130.
In the periodic unevenness detecting step of the above embodiment, the reference distribution 22 is calculated by the unit controller 10, but when a distribution corresponding to the reference distribution 22 is calculated by the drawing frame 130, the distribution received from the drawing frame 130 may be used instead of the reference distribution 22. The spectrogram in the drawing frame 130 is different from the spectrogram of the air-jet spinning machine 150 in absolute value, but the relative value is the same, so that the distribution received from the drawing frame 130 can be used instead of the reference distribution 22.
In the periodic unevenness detecting step of the above embodiment, the periodic unevenness caused by the drawing frame 130 may be detected using a wavelength distribution of unevenness with respect to the thickness of the yarn Y instead of the frequency distribution 21. In this case, the wavelength distribution and the reference distribution are, for example, distributions shown on a graph with the wavelength on the horizontal axis and the intensity on the vertical axis.
The periodic unevenness detecting step of the above embodiment may be executed by the body control device 5 a. Alternatively, the periodic unevenness detecting step may be executed by a computer provided separately from the drawing frame 130 and the air spinning machine 150, for example, by a central management computer of a fiber plant.
In the periodic unevenness detecting step of the above embodiment, the periodic unevenness caused by the drawing frame 130 is detected based on both the first information and the second information, but the second information is not necessarily used.
In the first output step of the above embodiment, the frequency distribution 21 and the reference distribution 22 are displayed on the touch panel screen 5b, but the frequency distribution 21 and the reference distribution 22 may be displayed on a display device provided in the drawing frame 130 or a mobile display device (including a tablet computer, a smartphone, or the like). In the second output step of the above embodiment, the information for eliminating the periodic unevenness is displayed on the touch panel screen 5b, but the information may be displayed on a display device provided in the drawing frame 130 or a mobile display device (including a tablet computer, a smartphone, or the like). Alternatively, a sheet on which the information is recorded may be printed. The frequency distribution 21 and the reference distribution 22 and the information for eliminating the periodic unevenness may be displayed together on 1 display device or may be displayed on 2 different display devices.
In the above embodiment, when the periodic unevenness caused by the drawing frame 130 is detected in the periodic unevenness detecting step, information for urging the fiber bundle S (can) generated during a period from the generation start time of the fiber bundle S to the detection to return to the scutcher may be displayed in the second output step. Alternatively, when the periodic unevenness caused by the drawing frame 130 is detected in the periodic unevenness detecting step, the can containing the fiber bundle S generated during a period from the generation start time of the fiber bundle S to the detection may be automatically transferred to the drawing frame 130. The fiber bundle S can be discarded only when processed into the yarn Y (package P), but can be returned to the scutcher for reuse when in the state of the fiber bundle S.
In the above embodiment, the case where the pre-process machine is the drawing frame 130 and the post-process machine is the air-jet spinning machine 150 is described as an example, but the combination of the pre-process machine and the post-process machine is not limited to this. For example, the drawing frame 130 (former process machine) and the roving frame (latter process machine) may be combined. In this case, the first fiber bundle is a tampon and the second fiber bundle is a roving. Alternatively, a combination of a roving frame (preceding step machine) and a ring spinning frame (succeeding step machine) may be used. In this case, the first fiber bundle is a roving and the second fiber bundle is a yarn. That is, the post-process machine is not necessarily a fiber machine that twists a fiber bundle as long as it is a fiber machine that generates a second fiber bundle by at least drafting a first fiber bundle generated by the pre-process machine.
In the above embodiment, it can be considered that the rotor spinning machine 150 as a post-process machine executes the periodic unevenness detecting method. The air spinning machine 150 includes: a spinning unit 2 having a draft device 6 that drafts the fiber bundle S, a spinning device 7 that twists the drafted fiber bundle S to generate a yarn Y, and a winding device 13 that winds the yarn Y to form a package P; a yarn thickness unevenness detecting section (yarn monitoring device 8) for detecting thickness unevenness information on the periodic thickness unevenness of the yarn Y; a first acquisition unit (body control device 5a) that acquires first information relating to a preceding machine (drawing frame 130) that generates a fiber bundle S; and a periodic unevenness determining unit (unit controller 10) that detects periodic unevenness occurring in the yarn Y due to the preceding-process machine, based on the first information and the thickness unevenness information. The air-jet spinning machine 150 includes a plurality of spinning units 2, and the periodic unevenness determining section determines the periodic unevenness generated in the yarn Y by the preceding-step machine for each of the plurality of spinning units 2.
In the spinning unit 2 of the above embodiment, the devices are arranged so that the yarn Y supplied on the upper side is wound on the lower side in the machine height direction, but the devices may be arranged so that the yarn Y supplied on the lower side is wound on the upper side.
The spinning unit 2 may draw the yarn Y from the spinning device 7 by a pair of delivery rollers (drawing device) instead of drawing the yarn Y from the spinning device 7 by the yarn accumulating device 11. In this case, the total draft ratio may be a difference in circumferential speed between the rear roller of the draft device 6 and the pair of delivery rollers.
The draft device 6 may have at least a rear roller, an intermediate roller, and a front roller, and may further have a pair of rear rollers, for example.
The present invention can be modified within the scope not changing the gist described in each technical means. The above embodiments and the above modifications may be combined as appropriate. At least some of the above embodiments and the above modifications may be arbitrarily combined.
Claims (19)
1. A method for detecting a periodic unevenness of a substrate,
the periodic unevenness detecting method is executed in a fiber processing system which generates a second fiber bundle by at least drawing a first fiber bundle generated by a former process machine by a latter process machine,
the periodic unevenness detecting method includes:
a first acquisition step of acquiring first information relating to the preceding process machine;
a thickness unevenness detection step of detecting thickness unevenness information on the periodic thickness unevenness of the second fiber bundle; and
and a periodic unevenness determining step of determining a periodic unevenness generated in the second fiber bundle by the preceding-step machine based on the first information, the thickness unevenness information, and a total draft ratio in the subsequent-step machine.
2. The periodic unevenness detection method according to claim 1,
in the periodic unevenness determining step, the periodic unevenness is determined using a frequency distribution or a wavelength distribution of the periodic unevenness of the second fiber bundle as the thickness unevenness information.
3. The periodic unevenness detection method according to claim 2,
when a distribution calculated based on the fineness, average thickness, and ratio of fiber length of the first fiber bundle and the total draw ratio is set as a reference distribution,
in the periodic unevenness determining step, the periodic unevenness is determined based on a result of comparison between the reference distribution and the frequency distribution or based on a result of comparison between the reference distribution and the wavelength distribution.
4. The periodic unevenness detection method according to claim 2 or 3,
in the periodic unevenness determining step, the periodic unevenness is determined by determining whether or not a peak corresponding to the periodic unevenness appears in the frequency distribution or the wavelength distribution.
5. The periodic unevenness detecting method according to any one of claims 2 to 4,
further comprising a first output step of outputting the frequency distribution or the wavelength distribution to a display screen,
in the first output step, the peak appearing in the frequency distribution is displayed in a display mode different from that of a portion other than the peak in the frequency distribution, or the peak appearing in the wavelength distribution is displayed in a display mode different from that of a portion other than the peak in the wavelength distribution.
6. The periodic unevenness detecting method according to any one of claims 1 to 5,
in the periodic unevenness determining step, a cause of the periodic unevenness is estimated based on the first information and the thickness unevenness information.
7. The periodic unevenness detecting method according to any one of claims 1 to 6,
further comprises a second acquisition step of acquiring second information on the post-process machine,
in the periodic unevenness determining step, the periodic unevenness is also determined based on the second information.
8. The periodic unevenness detecting method according to any one of claims 1 to 7,
the pre-process machine generates the first fiber bundle by drafting the fiber bundle,
the post-process machine drafts the first fiber bundle at a draft ratio higher than that of the pre-process machine.
9. The periodic unevenness detecting method according to any one of claims 1 to 8,
the post-process machine includes: a draft device for drafting the first fiber bundle; a spinning device that twists the first fiber bundle drafted by the draft device to produce a yarn as the second fiber bundle; and a winding device for winding the yarn to form a package.
10. The periodic unevenness detecting method according to any one of claims 1 to 9,
the pre-process machine includes a plurality of first roller pairs each having a driving roller and a driven roller, and the first fiber bundle is generated by drafting the fiber bundle supplied to the pre-process machine by the plurality of first roller pairs,
the first information includes at least one of a diameter of the driving roller, a number of teeth of a pulley of the driving roller, a pitch of a groove formed in the driving roller, a number of teeth of a driving gear of the driving roller, a contact pressure between the driving roller and the driven roller, and a diameter of a can in which the fiber bundle generated by the pre-process machine is accommodated.
11. The periodic unevenness detecting method according to any one of claims 1 to 10,
the method further comprises a second output step of outputting information for eliminating the periodic unevenness when the periodic unevenness is determined in the periodic unevenness determining step.
12. The periodic unevenness detecting method according to any one of claims 1 to 10,
in the first acquiring step, the first information is acquired by at least one of an operation input and a communication.
13. The periodic unevenness detecting method according to any one of claims 1 to 10,
in the first acquiring step, the first information is acquired by reading, by a reading device, information of an information tag provided in a can in which the first fiber bundle is accommodated.
14. The periodic unevenness detecting method according to any one of claims 1 to 13,
the post-process machine includes a plurality of second roller pairs, and the first fiber bundle is drafted by the plurality of second roller pairs.
15. A spinning machine is provided, in which a spinning frame,
the periodic unevenness detecting method according to any one of claims 1 to 14 is executed as a post-process machine,
the spinning machine comprises:
a draft device for drafting the first fiber bundle;
a spinning device that twists the first fiber bundle after the drawing to generate a yarn as the second fiber bundle;
a winding device for winding the yarn to form a package;
a first acquisition unit that acquires the first information;
a thickness unevenness detecting section for detecting the thickness unevenness information; and
and a periodic unevenness determining unit that determines a periodic unevenness generated in the yarn by the preceding-step machine, based on the first information, the thickness unevenness information, and a total draw ratio.
16. Spinning machine according to claim 15,
the spinning device is provided with a plurality of spinning units,
each of the plurality of spinning units includes the draft device, the spinning device, and the winding device,
the periodic unevenness determining section determines the periodic unevenness for each of the plurality of spinning units.
17. Spinning machine according to claim 15 or 16,
further comprising a drawing device for drawing the yarn from the spinning device,
the draft device comprises at least a rear roller, an intermediate roller and a front roller,
the periodic unevenness determining section uses a difference between circumferential speeds of the rear roller and the drawing device or a difference between circumferential speeds of the rear roller and the front roller as the total draw ratio.
18. A fiber processing system is provided with:
a pre-process machine that generates a first fiber bundle;
a post-process machine for generating a second fiber bundle by at least drawing the first fiber bundle;
a first acquisition unit that acquires first information relating to the preceding process machine;
a thickness unevenness detecting section for detecting thickness unevenness information on the periodic thickness unevenness of the second fiber bundle; and
and a periodic unevenness determining unit that determines periodic unevenness generated in the second fiber bundle by the preceding-step machine based on the first information, the thickness unevenness information, and a total draft ratio in the subsequent-step machine.
19. A computer-readable storage medium having a periodic unevenness detection program recorded thereon, wherein,
the periodic unevenness detecting program is configured to cause a computer to execute, in a fiber processing system for generating a second fiber bundle by at least drafting a first fiber bundle generated by a preceding-step machine by a succeeding-step machine:
a process of acquiring first information related to the preceding process machine;
processing for detecting thickness unevenness information relating to periodic thickness unevenness of the second fiber bundle; and
and a step of determining a treatment of the periodic unevenness generated in the second fiber bundle by the preceding-step machine based on the first information, the thickness unevenness information, and the total draft ratio in the subsequent-step machine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018119662A JP2020002477A (en) | 2018-06-25 | 2018-06-25 | Method for detecting cyclic unevenness, fiber processing system, spinning machine, and cyclic unevenness detection program |
| JP2018-119662 | 2018-06-25 |
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|---|---|
| CN110629336A true CN110629336A (en) | 2019-12-31 |
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| CN201910333274.5A Pending CN110629336A (en) | 2018-06-25 | 2019-04-24 | Periodic unevenness detection method, fiber processing system, spinning machine, and storage medium |
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| Country | Link |
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| EP (1) | EP3587636A1 (en) |
| JP (1) | JP2020002477A (en) |
| CN (1) | CN110629336A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707001A (en) * | 2004-05-29 | 2005-12-14 | 利特英格纺织机械制造股份公司 | Spinning preparing machine with drawing device for drawing fibre bound sliver and applied method thereof |
| JP2011020836A (en) * | 2009-07-17 | 2011-02-03 | Murata Machinery Ltd | Textile machine managing system and fine spinning winder |
| CN103510217A (en) * | 2012-06-29 | 2014-01-15 | 村田机械株式会社 | Textile machinery and periodic unevenness detecting method therein |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07138822A (en) | 1993-11-10 | 1995-05-30 | Murata Mach Ltd | Method for judging quality of silver in textile machinery |
| DE102005019760B4 (en) * | 2004-05-29 | 2018-12-20 | Rieter Ingolstadt Gmbh | Spinning machine with a drafting system for stretching a fiber structure and corresponding method |
-
2018
- 2018-06-25 JP JP2018119662A patent/JP2020002477A/en active Pending
-
2019
- 2019-04-24 CN CN201910333274.5A patent/CN110629336A/en active Pending
- 2019-06-24 EP EP19181965.5A patent/EP3587636A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1707001A (en) * | 2004-05-29 | 2005-12-14 | 利特英格纺织机械制造股份公司 | Spinning preparing machine with drawing device for drawing fibre bound sliver and applied method thereof |
| JP2011020836A (en) * | 2009-07-17 | 2011-02-03 | Murata Machinery Ltd | Textile machine managing system and fine spinning winder |
| CN103510217A (en) * | 2012-06-29 | 2014-01-15 | 村田机械株式会社 | Textile machinery and periodic unevenness detecting method therein |
Non-Patent Citations (1)
| Title |
|---|
| 张曙光,耿琴玉,张冶: "《现代棉纺技术 第3版》", 31 August 2017, 上海：东华大学出版社 * |
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| EP3587636A1 (en) | 2020-01-01 |
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