JP2006241616A - Air spinning machine and spinning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air spinning machine solving problems in increasing spinning speed that the descent of ending quality in ending and descent of success rate in ending causes descent of mechanical efficiency that imparts a result inimical to speeding up, and the time required for ending such as thread faults removing operation, etc., itself causes problem inimical to speeding up. <P>SOLUTION: The air spinning machine is produced for primary packages as materials for forming secondary packages removing faults of thread as a completed products, comprises an air spinning device 10 producing spun yarn 8, a yarn detector 20 detecting presence or absence of the spun yarn 8, a primary take-up device 40 taking-up spun yarn 8 to form a primary package 1, and a doffing carriage 6 taking out the primary package 1 from the primary take-up device 40 in completion of the primary package 1 or in detecting absence of yarn by the yarn detector 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a technique of an air spinning machine that performs spinning using a pneumatic spinning nozzle, and a spinning system that uses the pneumatic spinning machine.

An air spinning machine that performs spinning using a pneumatic spinning nozzle achieves a high yarn production speed of 300 to 400 m / min (min), which is more productive than conventional ring pneumatic spinning machines. There is a great advantage in terms.
Such an air spinning machine is provided with a plurality of spinning units for producing one spindle of yarn, and each spinning unit winds up while monitoring a yarn defect to form a package. Here, when a yarn defect is detected, the yarn is cut, and the newly spun yarn and the already wound package-side yarn are automatically spliced by a splicing device such as a piecer device or a splicing device. When a predetermined amount of yarn is wound up and full, the spinning in the spinning unit is temporarily stopped, the full-winding package is paid out, a new empty bobbin is supplied, and winding is resumed. . For example, the technique disclosed in Patent Document 1.
Usually, the package produced in this way is a package that has been finished in a yarn amount and shape suitable for subsequent processes on a loom, knitting machine, etc., with the yarn defects removed.
JP 2001-40532 A

In the yarn splicing operation in the pneumatic spinning machine, it is necessary to connect the yarn being spun and the yarn on the package side that has already been wound up, so that the yarn spun during the yarn splicing operation is temporarily stored. A storage device is required. Here, in the spinning machine, it is desired to increase the spinning speed from the viewpoint of economic efficiency.
In this case, it is necessary to increase the yarn splicing speed or increase the size of the yarn storage device as the spinning speed is increased. However, there is a limit to the time for the splicing operation in order to perform the splicing stably, and forcibly increasing the speed of the splicing operation causes a decrease in the success rate of the splicing and a decrease in the quality of the seam. A decrease in the success rate of the yarn splicing causes an increase in the number of repetitions of the yarn splicing operation. If automatic splicing becomes impossible as a result of the repetition of the yarn splicing operation, the operator must wait for a treatment. Thus, a decrease in the yarn splicing success rate induces a decrease in mechanical efficiency. In addition, an increase in the size of the storage device also causes an increase in mutual contact between the stored yarns, which may increase the occurrence of yarn breakage during spinning.

  Furthermore, in a pneumatic spinning machine that has been sped up, the removal operation time for reliably removing the yarn cut for removing the yarn defect from the package greatly affects the reduction in mechanical efficiency.

  In other words, the problem to be solved is that, in an air spinning machine, when trying to increase the spinning speed, not only the splicing quality of the splicing is reduced, but also the mechanical efficiency decreases due to a decrease in the splicing success rate. As a result, the time required for the splicing operation such as the removal of the yarn defect becomes a factor against the speed increase.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

That is, in claim 1,
Pneumatic spinning machine
An air spinning machine for manufacturing a primary package as a material for forming a secondary package as a finished product from which yarn defects are removed,
A pneumatic spinning device for producing spun yarn,
A yarn detection device for detecting the presence or absence of the spun yarn;
A primary winding device for winding the spun yarn to form a primary package;
A doffing device that delivers the primary package from the primary winding device when the primary package is fully wound or when no yarn is detected by the yarn detection device;
It is provided.

In claim 2,
In the pneumatic spinning machine,
The yarn amount of the primary package is made smaller than the yarn amount of the secondary package.

In claim 3,
In the pneumatic spinning machine,
The primary package is wound by the primary winding device within a range where ribbon winding does not occur.

In claim 4,
The pneumatic spinning machine is
A plurality of spinning units for a single spindle comprising at least the pneumatic spinning device, the yarn detection device, and the primary winding device,
The primary package can be discharged from the primary winding device at random for each spinning unit.

In claim 5,
A spinning system comprising the pneumatic spinning machine and a rewinding machine,
The rewinding machine is
An unwinding device for unwinding the spun yarn from the primary package;
A yarn defect detection device for detecting a yarn defect of the spun yarn;
A splicing device for splicing the spun yarn; and
A secondary winding device for winding the spun yarn to form the secondary package;
It is provided.

In claim 6,
The spinning system includes:
And a package transfer device that transfers the primary package delivered from the primary winding device to the unwinding device.

In claim 7,
The spinning system includes:
A plurality of spinning units for a single spindle comprising at least the pneumatic spinning device, the yarn detection device, and the primary winding device,
One or more rewinding units for one spindle comprising at least the unwinding device, the yarn defect detecting device, and the secondary winding device,
Each rewinding unit is supplied with the primary package delivered from a plurality of spinning units, and the plurality of primary packages are spliced by the splicing device to form the secondary package. , That is.

In claim 8,
In the spinning system,
The primary package can be discharged from the primary winding device at random for each spinning unit.

  As effects of the present invention, the following effects can be obtained.

In claim 1,
Even when the spinning speed is increased, the quality of the seam deteriorates due to the splicing while spinning, the mechanical efficiency decreases due to the decrease in the success rate of the splicing, and the mechanical efficiency decreases due to the operation time required for removing the yarn defect. do not do. In addition, the device configuration is simplified.

In claim 2, in addition to the effect of claim 1,
In the subsequent process, the success rate of the extraction from the primary package is stabilized, and the mechanical efficiency is not lowered.

In claim 3, in addition to the effect of claim 1 or claim 2,
In the extraction from the primary package in the subsequent process, the decrease in the extraction success rate due to the ribbon winding portion having poor unwinding property is prevented.

In claim 4, in addition to the effect of any one of claims 1 to 3,
The primary package can be paid out sequentially from the primary winding device in which the formation of the primary package has been completed, leading to an improvement in production efficiency.

In claim 5,
The spinning speed of the pneumatic spinning machine is increased without lowering the mechanical efficiency due to the lowering of the yarn splicing success rate, lowering the mechanical efficiency due to the operation time required for yarn defect removal, and deterioration of the seam quality.

In claim 6, in addition to the effect of claim 5,
It leads to improvement of production efficiency.

In claim 7, in addition to the effect of claim 5 or claim 6,
Even if the quality of the raw material sliver is uneven and the quality of the spun yarn produced is uneven for each spindle, this unevenness is averaged to produce a secondary package with stable yarn quality. be able to.

In claim 8, in addition to the effect of claim 7,
By providing a time difference in the delivery of the primary package from each weight, the primary package from the primary winding device to the unwinding device can be conveyed more efficiently, leading to an improvement in production efficiency.

Embodiments of an air spinning machine and a spinning system according to the present invention will be described with reference to the drawings.
One embodiment of the pneumatic spinning machine of the present invention is an air spinning machine 100.
Three embodiments of the spinning system of the present invention are the spinning systems 1000 and 2000 and the textile machine 3000. The spinning system 1000 and the textile machine 2000 are provided with the pneumatic spinning machine 100.

A spinning system 1000 will be described with reference to FIGS. 1 to 3.
The spinning system 1000 includes an air spinning machine 100 that manufactures a package (primary package) 1 of spun yarn, and a rewinding machine 200 that manufactures a secondary package 2 by piecing the primary package 1 while winding it back. Yes.
Further, the spinning system 1000 is provided with package transport means 300 for transporting the primary package 1 from the air spinning machine 100 to the winder 200.

The primary package 1 manufactured by the pneumatic spinning machine 1 is not itself completed as a package of appropriate quality with an appropriate amount of yarn, but is manufactured as a material to be provided to the rewinding machine 200 in charge of the subsequent process. It is what is done. The primary package 1 is formed of spun yarn 8 that does not remove yarn defects unless the yarn amount is necessarily constant.
In the rewinding machine 200, a plurality of primary packages are connected by yarn splicing to adjust the yarn amount to a constant value. If there are yarn defects, the yarn defects are removed by cutting and reconnecting the yarns. Thus, the secondary package 2 having the proper yarn amount and the appropriate quality is manufactured.
Unlike the primary package 1, the secondary package 2 is an appropriate package as a product or for delivery to other processes such as dyeing.

  That is, the pneumatic spinning machine 100 is configured as a machine that is purely specialized for spinning, and does not have a function of detecting a yarn defect or a function of adjusting the yarn amount of a package, and the configuration is simple. It has become.

The configuration of the pneumatic spinning machine 100 will be described with reference to FIGS. 1 and 2.
The pneumatic spinning machine 100 includes a plurality of spinning units 3 that are responsible for spinning one spindle, and a doffing carriage 6 that is a doffing device shared between the spinning units 3 and a driving device 4 that drives each spinning unit 3. And a control device 5 for controlling the driving of each spinning unit 3 and the doffing cart 6.

  Each spinning unit 3 includes a pneumatic spinning device 10, a yarn detection device 20, a package yarn amount calculation device 30, and a primary winding device 40. In particular, the pneumatic spinning device 10 includes a draft device 11 and an air spinning device 12.

The spinning unit 3 will be described in more detail with reference to FIG.
In the spinning unit 3, a conveying path for the sliver 7 and the spun yarn 8 is formed from the top to the bottom, and along this conveying path, a sliver can (not shown), a draft device 11, An air spinning device 12, a yarn feeding device 15, a yarn detecting device 20, and a primary winding device 40 are arranged.

  The sliver 7 supplied from Kens is drawn by the draft device 11 and supplied to the air spinning device 12. The air spinning device 12 applies a swirling air flow to the sliver 7 to entangle the fibers constituting the sliver 7 to spin the spun yarn 8. The spun yarn 8 manufactured by the air spinning device 12 is sent to the primary winding device 40 by the yarn feeding device 15. The yarn feeding device 15 includes a pair of rollers that nip and feed the spun yarn 8. The primary winding device 40 includes a cradle 43 that supports the bobbin 41 and a friction roller 42 that rotates in contact with the package (primary package 1) on the bobbin 41. The spun yarn 8 is placed on the bobbin 41. Is wound to form the primary package 1.

  The primary winding device 40 interrupts winding when the primary package 1 being wound up reaches a predetermined full winding or when yarn cutting occurs during winding. The primary package 1 that has been wound up is paid out from the primary winding device 40 by the doffing cart 6 as will be described in detail later.

A mechanism relating to determination of yarn cutting during winding will be described.
The yarn detection device 20 is a means for detecting the presence or absence of yarn passing through the front of the yarn detection device 20, and is disposed between the air spinning device 12 and the primary winding device 40. When the yarn detecting device 20 detects the yarn absence state, it is determined that the yarn has been cut, and the winding drive (rotation of the friction roller 42) in the primary winding device 40 based on the yarn absence detection signal. Is stopped.
The yarn detection device 20 only needs to be able to detect the presence or absence of a yarn, and may not be able to detect yarn defects such as uneven thickness.

A mechanism relating to the determination of the full winding state of the primary package 1 will be described.
The yarn amount of the primary package 1 can be calculated based on the time when the yarn detecting device 20 detects the presence of the yarn and the number of rotations of the friction roller 42 in the primary winding device 40. This calculation process is performed in the package yarn amount calculation device 30. When the package yarn amount calculation device 30 determines that the yarn amount of the primary package 1 has reached a predetermined full winding state, the winding drive (rotation of the friction roller 42) in the primary winding device 40 is performed. ) Is stopped.

The primary package 1 will be described.
The primary package 1 is unwound when the primary package 1 is rewound onto the secondary package 1. However, it is necessary to perform extraction (removal of the yarn end from the package) at the time of unwinding. This spouting is automatically performed by a spouting device, and in this embodiment, the lower thread catching device 142 including a suction nozzle that performs air suction corresponds to this spouting device.

  Here, the yarn amount (diameter) of the primary package 1 manufactured by the pneumatic spinning machine 100 is not necessarily constant because winding is interrupted at that point in the case of yarn cutting. For this reason, the post-out device of the post-process performs the lead-out from the primary package 1 having a different diameter. As described above, if there is a difference in the yarn amount of the primary package 1 to be spouted, even a spout device that can handle packages with different yarn amounts (diameters) will cause variations in the spout success rate.

Therefore, at least when the primary package 1 is fully wound, the yarn amount of the primary package 1 is smaller than the yarn amount of the secondary package 2 so that the standard deviation (variation in yarn amount) of the yarn amount of the primary package 1 to be manufactured is low. I try to reduce it. Then, the success rate of extraction from the primary package 1 by the extraction device in the subsequent process is stabilized.
In addition, if the yarn amount of the primary package 1 at full winding is less than the yarn amount of the secondary package 2, and there is no yarn defect, the secondary package can be simply added to the primary package 1. 2 can be formed and is efficient.

Further, in the primary package 1, the spun yarn 8 is wound on the bobbin 41 by traverse winding so that the unwinding property is good. In order to wind in the traverse, it is necessary to swing (traverse) the spun yarn 8 along the axial direction of the bobbin 41 as the bobbin 41 is wound.
In the present embodiment, a thread guide groove is formed in the friction roller 41 at a predetermined traverse angle (winding angle with respect to the bobbin radial direction), and the winding means and traverse means are used together. It is possible to wind the package on the bobbin at the twill angle.
Alternatively, the friction roller may simply be a winding means, and a traverse device for yarn guidance may be provided separately. In this case, the traverse device drive speed (yarn guide swing speed) according to changes in the package diameter. A mechanism for controlling the above is required.

However, when winding is performed while traversing at a constant traverse angle, the number of turns of the spun yarn 8 on the package (the number of turns from one end of the bobbin to the other end) is (N + 1) / 2 (N is Ribbon winding occurs in an area close to (natural number). Ribbon winding means a state in which yarns are gathered and wound in a state where the winding position of the yarn is biased without being dispersed and a thick ribbon is wound on the bobbin several times. This is because in the region where the number of windings is close to N / 2, the winding position of the yarn on the package hardly changes with each rotation of the package.
When N = 1, it is in a rod winding state, and winding cannot be performed with a smaller number of windings.

  Therefore, in each of the embodiments, the primary winding device 40 performs winding in the range where the number of turns of the primary package 1 is (N + 1) / 2 (N: natural number) to (N + 2) / 2. It is configured. For example, the number of turns is in the range of 2 to 2.5. When winding is performed within this range, ribbon winding does not occur. When ribbon winding occurs, the unwinding property decreases at the generation site, and the success rate of the above-described extraction is also decreased.

In this way, when the winding range of the package is limited, the amount of yarn to be wound becomes small accordingly, and the diameter of the primary package 1 in the full winding state is usually (exceeding the number of windings in which ribbon winding occurs). Compared to the case of winding).
That is, by limiting the winding range so as to avoid the occurrence of ribbon winding, not only can the ribbon winding part that causes a decrease in the success rate of the lead out be eliminated, but also the yarn amount itself of the primary package 1 is limited and the yarn amount Since the deviation of the difference between the two is small, a decrease in the success rate of the extraction due to the variation in the yarn amount can be prevented at the same time.

  The diameter of the primary package 1 when fully wound can be calculated based on the setting of the range of the number of windings (such as the number of windings from 2.0 to 2.5) and the diameters of the bobbin 41 and the friction roller. It is.

  In addition, in the case of a configuration in which the friction roller is merely a winding means and a traverse device for yarn guidance is provided separately (described above), the winding angle is always changed by appropriately changing the traverse angle in order to prevent ribbon winding. Although it is possible to perform winding so as to deviate from the periphery of N / 2, the apparatus configuration becomes complicated.

  2, the doffing cart 6 is located on the front side (with respect to the paper surface of FIG. 2) of the spinning units 3, 3..., And can be moved along the spinning units 3. is there. The doffing cart 6 performs a doffing operation on the spinning unit 3 while stopped in front of the spinning unit 3.

The doffing operation by the doffing cart 6 is firstly the operation of paying out the primary package 1 from the spinning unit 3. The replacement operation of the bobbin 41 and the bobbin after the replacement are necessary according to this payout. It also includes threading work on 41.
Here, the doffing cart 6 receives a command from the control device 4 to move toward the spinning unit 3 where the primary package 1 needs to be dispensed, and performs the doffing work in a state where the dolly cart 6 has arrived in front of it. It is what is started.

The doffing cart 6 includes a payout operation device 51, a bobbin exchanging device 52, and a yarn catching device 53, in addition to a traveling device for traveling along the spinning units 3, 3,.
The payout operating device 51 is an operating means for the cradle 43 provided in the primary winding device 40, and can release the primary package 1 by releasing the holding of the bobbin 41 by the cradle 43.
The bobbin exchanging device 53 includes an arm device that supplies the bobbin 41 to the cradle 43, a storage device for the bobbin 41, and the like, and the bobbin to the cradle 43 is interlocked with the holding / release of the cradle 43 by the dispensing operation device 51. 41 is supplied.
The yarn catching device 52 includes a suction nozzle that performs air suction, an arm device that moves the suction nozzle, a holding device that holds and holds the yarn, and an empty bobbin after being held by the cradle 43. 41 is threaded. At this time, threading is performed with the bobbin 41 rotated by driving the friction roller 42.

Next, the configuration of the rewinding machine 200 will be described with reference to FIGS. 1 and 3.
The rewinding machine 200 includes a plurality of rewinding units 103 that are responsible for rewinding a single spindle, and drives a doffing carriage 106 that is a doffing device shared between the rewinding units 103 and each rewinding unit 103. The apparatus 104, and the control apparatus 105 which controls the drive of each winding unit 103 and the doffing cart 106 are provided.

  Each rewind unit 103 includes an unwinding device 110, a yarn defect detecting device 120, a yarn cutting device 130, a yarn splicing device 140, a package yarn amount calculating device 150, and a secondary winding device 160.

The winding unit 103 will be described in more detail with reference to FIG.
The unwinding unit 103 is formed with a conveying path for the spun yarn 8 from the bottom to the top, and along the conveying path, the unwinding device 110, the yarn splicing device 140, the yarn defect detecting device 120, and the yarn cutting device are formed. A device 130 and a secondary winding device 160 are arranged.

The unwinding device 110 is supplied with the primary package 1 as an unwinding package in a posture in which the bobbin 41 is placed vertically on the tray 111. The unwinding device 110 is a device for unwinding the package yarn from the axial direction of the bobbin. An unwinding tension applying device 112 for applying unwinding tension to the spun yarn 8 released from the primary package 1 is provided. Is provided.
The spun yarn 8 unwound from the primary package 1 of the unwinding device 110 is wound up by the secondary winding device 160 to form the secondary package 2. The secondary winding device 160 basically has the same configuration as the primary winding device 40, and includes a friction roller 162 that rotates in contact with the package and a cradle 163 that holds a bobbin.

When the secondary package 2 is manufactured by rewinding the primary package 1, the package yarn amount is made uniform and the yarn defect is removed.
As described above, the secondary package 2 is a package that is completed as an appropriate quality package with an appropriate yarn amount, whereas the primary package 1 is a package manufactured on the premise of rewinding. The primary package 1 also includes a package with a non-uniform amount of yarn, such as a package in which winding is interrupted before full winding by yarn cutting. Further, since the yarn defect is not removed in the spinning unit 3, the primary package 1 may contain a yarn defect.

Uniformity of the package yarn amount is achieved by appropriately performing yarn splicing or yarn cutting according to the yarn amount of the non-uniform primary package 1 and the yarn amount of the intended secondary package 2 to be made uniform. Is possible.
In particular, in this embodiment, the primary package 1 has a smaller diameter (yarn amount is smaller than that of the secondary package 2) even when the primary package 1 is fully wound so as to avoid a reduction in yarn amount deviation and ribbon winding (that is, a decrease in the spout success rate). Small). For this reason, the secondary package 2 is manufactured by splicing a plurality of primary packages 1 to increase the yarn amount, and adjusting the yarn amount by cutting the yarn when the secondary package 2 reaches a predetermined full winding. The

In the winding unit 103, the yarn piecing between the primary package 1 in the unwinding device 110 and the secondary package 2 in the secondary winding device 160 is performed by rotating both the packages 1 and 2 by the yarn piecing device 140. It is performed in a state where is stopped.
The yarn splicing device 140 includes a yarn splicing nozzle 141 that performs splicing by entanglement of the fibers constituting the spun yarn 8 using a swirling air flow, and a lower yarn catching device 142 that includes a suction nozzle that performs air suction. And an upper thread catching device 143 is provided. The lower yarn catching device 142 catches the yarn end of the primary package 1, the upper yarn catching device 143 catches the yarn end of the secondary package 2, guides it to the yarn splicing nozzle 141, and this yarn splicing nozzle 141. , The yarn ends of both packages 1 and 2 are spliced.
In the rewinding machine 200, it is not necessary to perform yarn splicing while spinning, unlike the air spinning machine 100. Therefore, the rewinding speed (unwinding speed and winding speed) of the main body is increased. It does not lead to a decline.

If a yarn defect is detected by the yarn defect detection device 120 during the rewinding of the primary package 1, the spun yarn 8 is cut at the yarn defect portion by the yarn cutting device 130.
The spun yarn 8 cut due to a yarn defect is also spliced by the splicing device 140. Then, the spun yarn 8 is wound around the secondary package 2 with the yarn defect removed.

A mechanism relating to the determination of the full winding state of the secondary package 2 will be described.
The calculation of the yarn amount of the secondary package 2 is performed in the same manner as the calculation of the yarn amount of the primary package 1. In the package yarn amount calculation device 150, the yarn of the secondary package 2 is based on the time when the yarn defect detection device 120 detects the presence of the yarn and the number of rotations of the friction roller provided in the secondary winding device 160. The amount can be calculated. When the package yarn amount calculation device 150 determines that the yarn amount of the secondary package 2 has reached a predetermined full winding state, the winding drive (the friction roller of the friction roller) in the secondary winding device 160 is determined. Rotation) is stopped.

  The doffing carriage 106 provided in the rewinding machine 200 is basically the same device as the doffing carriage 6 provided in the pneumatic spinning machine 100. The doffing carriage 106 is located on the front side (with respect to the paper surface of FIG. 3) of the rewinding units 103, 103, and can be moved along the direction in which the rewinding units 103, 103,. Device. The doffing carriage 106 performs a doffing operation on the rewinding unit 103 in a state where it is stopped in front of the rewinding unit 103.

The doffing operation by the doffing carriage 106 is firstly a discharge operation of the secondary package 2 from the rewinding unit 103. The bobbin replacement operation and the post-replacement operation that are necessary according to this discharge are performed. This includes threading work on bobbins.
Here, the doffing carriage 106 receives a command from the control device 104 to move toward the rewinding unit 103 that needs to pay out the secondary package 2, and the doffing carriage 106 arrives in front of the doffing dolly 106. Start work.

  The doffing device 106 is also provided with a paying operation device (corresponding to the paying operation device 51), a bobbin changing device (corresponding to the bobbin changing device 52), and a yarn catching device (corresponding to the yarn catching device 53). Yes. In addition, the doffing device 106 is also provided with a storage for the secondary package 2 paid out from the secondary winding device 160.

The package transport means 300 shown in FIG. 1 will be described.
In the present embodiment, the package transport means 300 transports the primary package 1 by a transport operation involving human power. The package transport means 300 is not limited as long as it is a means for transporting the primary package 1 from the pneumatic spinning machine 100 to the winder 200. That is, even if part and all of the primary package 1 is transported manually, the primary winding device 40 of the air spinning machine 100 and the winding machine 200 are utilized by using an automated device such as a conveyor. The unwinding device 110 may be connected.

Next, the spinning system 2000 will be described with reference to FIGS.
This spinning system 2000 includes a pneumatic spinning machine 100 that produces a package (primary package) 1 of a spun yarn, a rewinding machine 200 that produces a secondary package 2 by piecing the primary package 1 while rewinding, and a pneumatic spinning machine. And a package transport apparatus 1300 that automatically transports the primary package 1 from 100 to the winder 200.
That is, the spinning system 2000 includes the pneumatic spinning machine 100 and the rewinding machine 200, similarly to the spinning system 1000.
On the other hand, a difference between the spinning system 2000 and the spinning system 1000 is that the spinning system 2000 includes a package transport apparatus 1300 that is an automatic transport unit for the primary package 1.
In the following description, the same reference numerals are used for the same members and devices, and the description of the portions is omitted.

  As shown in FIGS. 4 and 5, the package transport apparatus 1300 includes a horizontally placed package transport conveyor 310, a package attitude conversion device 320, and a vertically placed package transport conveyor 330.

The horizontally placed package transport conveyor 310 is configured to horizontally place the primary package 1 delivered from the primary winding device 40 of each spinning unit 3 in the same manner as the posture supported by the cradle 43 (the axial direction of the bobbin 41 is horizontal). It is a device that conveys in a state.
The package posture conversion device 320 is a device that changes the posture of the primary package 1 so that the primary package 1 in the horizontal posture is in the vertical posture (the axial direction of the bobbin 41 is the vertical direction). The package orientation conversion device 320 scoops up the primary package 1 transported on the horizontally placed package transport conveyor 310, converts the orientation, and places it on the tray 111.
The vertically placed package transport conveyor 330 transports the primary package 1 in the vertically placed posture to the unwinding device 110 of each rewinding unit 103.

Further, as shown in FIG. 5, the spinning system 2000 is also provided with an empty bobbin conveying device 1400 for automatic collection of the empty bobbin 41.
The empty bobbin conveying device 1400 includes an empty bobbin conveying conveyor 410 and an empty bobbin transfer device 420. The empty bobbin transport conveyor 410 is a device that transports the empty bobbin 41 paid out from the unwinding device 110. The empty bobbin transfer device 420 scoops up the bobbin 41 transported on the empty bobbin transport conveyor 410 and supplies the bobbin 41 to the doffing cart 6 of the pneumatic spinning machine 100.
The empty bobbin 41 is transported on the empty bobbin transport conveyor 410 in a vertically placed posture placed on the tray 111. The empty bobbin transport conveyor 410 and the vertically placed package transport conveyor 330 are connected. Then, the tray 111 after the bobbin 41 is transferred by the empty bobbin transfer device 420 is transferred from the empty bobbin transfer conveyor 410 to the vertical package transfer conveyor 330.

A distribution method for each rewinding unit 103 of the primary package 1 group by the package conveying apparatus 1300 will be described.
As described above, the secondary package 2 is formed by splicing a plurality of primary packages 1. Here, a plurality of primary packages 1 are supplied to each rewinding unit 103, but the spinning units 3 that are the supply destinations are not the same but different. That is, the primary package 1 delivered from different spinning units 3 is supplied to one rewind unit 103.

The package transport apparatus 1300 is an apparatus in which the transport of the primary package 1 is automated. For this reason, it is possible to accurately realize a desired distribution by separately providing an identification system for each primary package 1 in the package transport apparatus 1300.
In such an identification system, for example, each bobbin 41 is provided with an ID tag (self-identification tag), and an ID tag detection device is disposed on the transport path of the primary package 1, so that the transport destination and position information of the primary package 1 are arranged. This can be realized by providing a database for managing
Of course, in the spinning system 1000 having a configuration in which the transporting means for the primary package 1 is not limited, the above-described distribution may be performed manually.

  By using a primary package 1 formed by a plurality of different spinning units 3, a single secondary package 2 is formed, so that unevenness in yarn quality between weights (each spinning unit 3) is removed and averaged. Is possible. For example, when the quality of the sliver 7 as the raw material is uneven, the manufactured primary package 1 may be uneven between the spinning units 3. By adopting the above distribution method, such unevenness is averaged between the secondary packages 2.

The random doffing between the weights in the pneumatic spinning machine 100 will be described.
The ring spinning machine has a structure in which doffing (dispensing of the winding package) is performed simultaneously with all the spindles due to its structure. On the other hand, in the pneumatic spinning machine, if the winding device is driven independently by each weight, the doffing can be performed independently by each weight. Here, the doffing performed independently by each weight is referred to as random doffing.
In each spinning unit 3 of the pneumatic spinning machine 100 according to the present embodiment, the primary winding device 40 is configured to be independently driven by each weight (each spinning unit 3). In addition, each primary winding device 40 is configured to perform doffing (dispensing of the primary package 1) in response to an operation by a common doffing cart 6 for all spindles.

  In the present embodiment, the primary winding device 40 of each weight is configured to be doffed only after receiving the operation of the common doffing carriage 6 for all the weights. Even in the case of a configuration in which a doffing device is provided for each device 40, of course, random doffing is possible.

As described above, it is possible to carry out random doffing so that the congestion of the transport of the primary package 1 group by the package transport device 1300 and the supply of the primary package 1 to each weight (each winding unit 103) of the winder 200 are provided. Waste of waiting time can be prevented.
Specifically, with each spindle of the air spinning machine 100, the starting time of the spinning operation is shifted by, for example, leaving a certain time interval so that a time difference occurs at the completion time of the formation of the primary package 1, and all spindles So that the primary package 1 does not flow into the transport path in the package transport apparatus 1300 at the same time.

By doing in this way, the primary package 1 paid out from each spinning unit 3 of the pneumatic spinning machine 100 is smoothly conveyed to the winding unit 103 waiting for the supply of the primary package 1 for rewinding. .
In particular, when a winding unit 103 that is a transport destination of each primary package 1 is set in advance using an identification system using an ID tag, there is a time difference between paying out the primary package 1 from the spinning unit 3. By providing, the transport of the primary package 1 to the set transport destination becomes even more efficient.

In addition, since the primary package 1 is configured so that the formation is interrupted and paid out even when the yarn is cut off, the operation of the pneumatic spinning machine 100 can be continued as much as possible without positively providing a time difference of the payout. , Each weight will be paid out separately.
However, since such a state does not occur until a certain time has elapsed from the start of operation, it is possible to efficiently transport the primary package 1 by providing a time difference in advance.

Next, the textile machine 3000 (third embodiment of the spinning system of the present invention) will be described with reference to FIGS.
The textile machine 3000 has a configuration similar to that of the spinning systems 1000 and 2000, and basically includes a pneumatic spinning machine, a rewinding machine, and conveying means for the primary package 1.
In the following description, the same reference numerals are used for the same members and devices, and the description of the portions is omitted.

The textile machine 3000 includes a plurality of spinning units 3, a plurality of winding units 103, a work carriage 506, a doffing carriage 106, a driving device 504, and a control device 505.
The work carriage 506 is shared by each spinning unit 503 and each winding unit 103. The driving device 604 drives each spinning unit 503 and each winding unit 103. The control device 605 controls the driving of each spinning unit 503, each winding unit 103, work cart 506, and doffing cart 106.

In addition to the function of the doffing carriage 6, the work carriage 506 has a function capable of transferring the primary package 1 from each spinning unit 3 to each unwinding unit 103.
In the same manner as the doffing cart 6, the work cart 506 includes a dispensing device 51, a bobbin exchanging device 52, in addition to a traveling device for traveling along the direction in which the spinning unit 3 and the winding unit 103 are arranged side by side. A yarn catching device 53, and a package transfer device 560. The package transfer device 560 includes a chuck device that grips the bobbin 17 and an arm device that moves the chuck device. The package transfer device 560 grips the primary package 1 delivered from the primary winding device 40. It can be moved.

Here, the whole spinning unit 3 and the whole winding unit 103 are both arranged in parallel along one direction. Further, the working carriage 506 and the doffing carriage 106 are located on the front side (with respect to the paper surface of FIG. 7) of the spinning units 3... Never do.
The working carriage 506 and the doffing carriage 106 can be stopped not only on the front face of the spinning unit 3 but also on the front face of the rewinding unit 103 by the traveling device provided for itself.

Delivery of the primary package 1 from the spinning unit 3 to the work carriage 506 is performed as follows.
A pair of guide rails (not shown) for rolling and guiding the bobbin 41 is provided on the front side (work cart 506 side) of the primary winding device 40 and is paid out from the primary winding device 40. Further, the primary package 1 rolls along the pair of guide rails to the work cart 506. The pair of guide rails are inclined so as to be lower on the work cart 506 side, and the primary package 1 rolls under its own weight.
In this way, the primary package 1 delivered from the primary winding device 40 rolls toward the work cart 506 and is gripped by the package transfer device 560.

Here, the work performed by the work carriage 506 is a work for discharging the primary package 1 from the spinning unit 3, a work for receiving the primary package 1, a work for replacing the bobbin 41, and a work for threading the bobbin 41 after the replacement. is there.
When the payout work and the receiving work are completed, the work carriage 506 performs the work of exchanging the bobbin 41 and the threading work on the bobbin 41 with respect to the primary winding device 40 as in the doffing car 6. .

  When the work cart 506 receives the primary package 1 from the spinning unit 3, the work cart 506 can travel along the parallel arrangement direction while holding the primary package 1 by the package transfer device 560, and any of the winding units 103 Move to.

In addition, delivery of the primary package 1 from the work cart 506 to the winding unit 103 is performed as follows.
As described above, the package transfer device 560 is a device that can be moved while holding the primary package 1. The package transfer device 560 unwinds the primary package 1 supplied from the primary winding device 40 and holding it. Transfer to device 110. Here, the primary package 1 is held in the horizontal posture by the primary winding device 40, but is held in the vertical posture by the unwinding device 110. Therefore, the package transfer device 560 supplies the primary package 1 to the unwinding device 110 in a state where the arm device is rotated to change the posture of the primary package 1 from the horizontal posture to the vertical posture.

The pneumatic spinning machine of the present invention will be summarized.
An air spinning machine for manufacturing a primary package as a material for forming a secondary package as a finished product from which yarn defects are removed, and includes the following devices.
The pneumatic spinning machine includes a pneumatic spinning device that produces spun yarn, a yarn detection device that detects the presence or absence of the spun yarn, a primary winding device that winds the spun yarn to form a primary package, and the primary A doffing device for discharging the primary package from the primary winding device when the package is fully wound or when the yarn detecting device detects no yarn.

The pneumatic spinning device is composed of the draft device 7 and the air spinning device 12 in the pneumatic spinning machine 100 (one embodiment of the first to third pneumatic spinning machines). There is no limitation on the configuration of the apparatus that performs spinning using an air flow.
The yarn detection device may be any device that can detect the presence or absence of a yarn, and may be a device that cannot detect a yarn defect.
In the pneumatic spinning machine 100, the doffing device is a separate device from the primary winding device 40 as the dispensing operation device 51 provided in the doffing cart 6, but the doffing device and the primary winding device are integrated. It is good also as an apparatus comprised in. That is, if the primary winding device is configured to allow the primary package 1 to be discharged when the primary package is fully wound or when the yarn detecting device detects no yarn, the configuration of the doffing device is asked. is not.

With the above-described configuration, a spun yarn package can be manufactured without removing yarn defects and piecing.
For this reason, even if the spinning speed is increased, the splicing quality is deteriorated by performing splicing while spinning, the mechanical efficiency is decreased due to a decrease in the splicing success rate, and the mechanical efficiency is decreased due to the operation time required for removing the yarn defect. Does not occur. In addition, the device configuration is simplified.

The invention of the second pneumatic spinning machine has the following configuration in the invention of the first pneumatic spinning machine.
The yarn amount of the primary package is made smaller than the yarn amount of the secondary package.

With the configuration described above, in the subsequent process, when the extraction from the primary package is performed by the extraction device, the variation in the extraction success rate due to the difference in the yarn amount is prevented.
For this reason, in the subsequent process, the success rate of the extraction from the primary package is stabilized, and the mechanical efficiency is not lowered.

The invention of the third pneumatic spinning machine has the following configuration in the invention of the first or second pneumatic spinning machine.
The primary package is wound by the primary winding device within a range where ribbon winding does not occur.

  The range in which ribbon winding does not occur is a range in which the number of windings of the primary package is (N + 1) / 2 (N: natural number) to (N + 2) / 2 in the primary winding device. When winding is performed within this range, ribbon winding does not occur.

With the above configuration, a primary package without a ribbon winding portion having poor unwindability is manufactured.
For this reason, in the extraction from the primary package in the subsequent process, the decrease in the extraction success rate due to the ribbon winding portion having poor unwinding property is prevented.

The invention of the fourth pneumatic spinning machine has the following configuration in the invention of any one of the first to third pneumatic spinning machines.
A plurality of spinning units for one spindle comprising at least the pneumatic spinning device, the yarn detecting device, and the primary winding device,
The primary package can be discharged from the primary winding device at random for each spinning unit.

  The pneumatic spinning machine 100 is provided with a plurality of spinning units 3 for each spindle of the spun yarn 8 and a primary winding device 40 that is independently driven by each spinning unit 3, and is related to the operation of other spindles. In addition, it is possible to take out the primary package 1 in conjunction with winding or operation of the doffing carriage 106. That is, the primary package 1 can be paid out from each spinning unit 3 at random.

  For this reason, the primary package can be discharged sequentially from the primary winding device in which the formation of the primary package has been completed, leading to an improvement in production efficiency.

The invention of the first spinning system includes the inventions of the first to third pneumatic spinning machines and a rewinding machine.
The unwinding machine includes an unwinding device for unwinding the spun yarn from the primary package, a yarn defect detecting device for detecting a yarn defect of the spun yarn, and a yarn splicing device for piecing the spun yarn. And a secondary winding device for winding the spun yarn to form the secondary package.

The spinning system 1000 (one embodiment of the invention of the first spinning system) and the spinning system 2000 (one embodiment of the invention of the first or second spinning system) are both the pneumatic spinning machine 100 (first embodiment). To the third spinning system of the invention) and a rewinding machine 200.
In the textile machine 3000 (one embodiment of the invention of the first or second spinning system), the assembly of the spinning unit 3 and the work carriage 506 corresponds to the pneumatic spinning machine, and the rewind unit 103 is It corresponds to the rewinding machine.
The spinning systems 1000 and 2000 include only one pneumatic spinning machine 100 and one rewinding machine 200, but include a plurality of pneumatic spinning machines 100 and a plurality of rewinding machines 200. May be.

With the configuration described above, the yarn amount can be adjusted in the yarn joining, yarn defect removal, and package formation in a winder capable of yarn joining in a state where the yarn delivery is stopped.
For this reason, the spinning speed of the pneumatic spinning machine is increased without causing a reduction in mechanical efficiency due to a reduction in the success rate of yarn splicing, a reduction in mechanical efficiency due to operation time required for yarn defect removal, and a deterioration in seam quality.

The invention of the second spinning system has the following configuration in the invention of the first spinning system.
The spinning system includes a package transport device that transfers the primary package delivered from the primary winding device to the unwinding device.

A package transport apparatus 1300 provided in the spinning system 2000 (one embodiment of the invention of the first or second spinning system) corresponds to the package transport apparatus.
A work cart 506 provided in the textile machine 3000 (one embodiment of the invention of the first or second spinning system) also corresponds to the package transport device. More specifically, an assembly of the traveling device and the package transfer device 560 included in the work cart 506 corresponds to the package transport device.
As long as the package transport device is constituted by an automated transport means, it does not ask whether it is a conveyor or a vehicle equipped with a transfer device.

With the above configuration, the process from the production of the spun yarn to the production of the secondary package as a finished product through the formation of the primary package is automated.
For this reason, it leads to the improvement of production efficiency.

The invention of the third spinning system has the following configuration in the invention of the first or second spinning system.
The spinning system includes a plurality of spinning units for one spindle including at least the pneumatic spinning device, the yarn detecting device, and the primary winding device, the unwinding device, and the yarn defect detecting device. And one or more rewinding units for a single spindle comprising at least the secondary winding device.
Further, each primary winding unit is supplied with the primary package delivered from a plurality of spinning units, and the plurality of primary packages are spliced by the splicing device to form the secondary package. It is what is done.

The winding unit 103 included in the spinning systems 1000 and 2000 is configured to include the yarn splicing device 140. However, the yarn splicing device may be configured to be movable and shared by each winding unit 103.
In addition, if the method of distributing the primary package group manufactured by the primary winding device to each unwinding device is also a distribution method in which the primary package manufactured by a different primary winding device is supplied to one unwinding device, In particular, it is not limited.

  For this reason, even if the quality of the raw material sliver is uneven and the produced spun yarn has unevenness for each spindle, this unevenness is averaged and the secondary package with stable yarn quality Can be manufactured.

The invention of the fourth spinning system has the following configuration in the invention of the third spinning system.
The primary package can be discharged from the primary winding device at random for each spinning unit.

  The spinning units 3 provided in the spinning systems 1000 and 2000 and the textile machine 3000 are each provided with a primary winding device 40 that is independently driven by each spindle (each spinning unit 3), regardless of the operation of other spindles. The primary package 1 can be paid out in conjunction with winding and operation of the doffing carriage 106. That is, the primary package 1 can be paid out from each spinning unit 3 at random.

  For this reason, by providing a time difference in the delivery of the primary package from each weight, the transport of the primary package from the primary winding device to the unwinding device becomes more efficient, leading to an improvement in production efficiency.

It is a schematic block diagram of 1st embodiment of a manufacturing system. It is a front view of this embodiment of an air spinning machine. It is a front view of a rewinding machine. It is a schematic block diagram of 2nd embodiment of a manufacturing system. It is a top view of 2nd embodiment of a manufacturing system. It is a schematic block diagram of the textile machine which is 3rd embodiment of a manufacturing system. It is a front view of the textile machine which is 3rd embodiment of a manufacturing system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Primary package 2 Secondary package 3 Spinning unit 6 Doffing cart 10 Pneumatic spinning device 20 Yarn detection device 40 Primary winding device 51 Discharge operation device 100 Pneumatic spinning machine 103 Rewinding unit 110 Unwinding device 120 Yarn defect detection device 140 Yarn splicing device 160 Secondary winding device 200 Rewinding machine 506 Package gripping device 1000/2000 Spinning system 1300 Package conveying device 3000 Textile machine

Claims (8)

An air spinning machine for manufacturing a primary package as a material for forming a secondary package as a finished product from which yarn defects are removed,
A pneumatic spinning device for producing spun yarn,
A yarn detection device for detecting the presence or absence of the spun yarn;
A primary winding device for winding the spun yarn to form a primary package;
A doffing device that delivers the primary package from the primary winding device when the primary package is fully wound or when no yarn is detected by the yarn detection device;
Comprising
This is an air spinning machine. The yarn amount of the primary package is smaller than the yarn amount of the secondary package;
The pneumatic spinning machine according to claim 1. The winding of the primary package by the primary winding device is performed within a range where ribbon winding does not occur.
The pneumatic spinning machine according to claim 1 or 2, wherein the pneumatic spinning machine is provided. A plurality of spinning units for a single spindle comprising at least the pneumatic spinning device, the yarn detection device, and the primary winding device,
Dispensing of the primary package from the primary winding device is configured to be possible randomly for each spinning unit,
The pneumatic spinning machine according to any one of claims 1 to 3, wherein the pneumatic spinning machine is provided. A spinning system comprising the pneumatic spinning machine according to any one of claims 1 to 3 and a rewinding machine,
The rewinding machine is
An unwinding device for unwinding the spun yarn from the primary package;
A yarn defect detection device for detecting a yarn defect of the spun yarn;
A splicing device for splicing the spun yarn; and
A secondary winding device for winding the spun yarn to form the secondary package;
Comprising
Spinning system characterized by that. A package transfer device that transfers the primary package paid out from the primary winding device to the unwinding device;
The spinning system according to claim 5, wherein: A plurality of spinning units for a single spindle comprising at least the pneumatic spinning device, the yarn detection device, and the primary winding device,
One or more rewinding units for one spindle comprising at least the unwinding device, the yarn defect detecting device, and the secondary winding device,
Each of the rewinding units is supplied with the primary package delivered from a plurality of spinning units, and the plurality of primary packages are spliced by the splicing device to form the secondary package. ,
The spinning system according to claim 5 or 6, wherein: Dispensing of the primary package from the primary winding device is configured to be possible randomly for each spinning unit,
The spinning system according to claim 7.

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