WO2018056468A1

WO2018056468A1 - Textile machine

Info

Publication number: WO2018056468A1
Application number: PCT/JP2017/034790
Authority: WO
Inventors: 貴大豊田; 伊藤　誠
Original assignee: 村田機械株式会社
Priority date: 2016-09-26
Filing date: 2017-09-26
Publication date: 2018-03-29
Also published as: JP2018052638A; EP3517471A1; EP3517471A4; CN109715540B; CN109715540A; WO2018056462A1

Abstract

A textile machine 1 is provided with a plurality of winding units 2, a platform truck 3 that travels along a direction in which the plurality of winding units 2 are arrayed, and a control unit 15 that controls the operations of the platform truck 3. The platform truck 3 can move to a contact position P4 at which the platform truck 3 comes into contact with a package P and to a standby position P3 set apart from the package P, the platform truck 3 having a contact device 34 that adjusts the position of the package P by coming into contact with the package P at the contact position P4, a drive unit 44 that causes the contact device 34 to move to the contact position P4 and the standby position P3, and a capture device 28 that captures a yarn Y2 from the package P while the package P is in contact with the contact device 34. The control unit 15 controls the drive unit 44 and adjusts the pressure with which the contact device 34 comes into contact with the package P at the contact position P4.

Description

Textile machinery

This disclosure relates to textile machinery.

The textile machine includes a yarn splicing cart that performs a yarn splicing operation between the yarn ends of the divided yarn when a yarn break or a yarn cut occurs in the winding unit. The yarn joining cart includes a yarn joining device that performs yarn joining, a catching device that catches the yarn from the package of the winding unit and guides it to the yarn joining device, a contact position that contacts the package, and a standby position that is separated from the package. And a package plate (contact device) that moves the package from the winding drum to a predetermined position by moving from the standby position to the contact position (see, for example, Patent Document 1).

JP 2010-189083 A

In the yarn joining cart, when the yarn is caught from the package by the catching device, the package plate is brought into contact with the package, and then the yarn is caught by the catching device while the package is reversed by the reverse rotation device. In the conventional yarn joining cart, the contact position of the package plate is always set to the same position. Therefore, in the conventional yarn splicing cart, the package plate may come into strong contact with the package depending on the type of the package. As a result, the package surface may be disturbed. Therefore, in the conventional yarn joining cart, depending on the type of the package, the surface of the package may be disturbed, and there is a possibility that the yarn cannot be satisfactorily captured by the capturing device.

An object of one embodiment of the present disclosure is to provide a textile machine that can reduce the influence of the package plate on the quality of the package.

A textile machine according to an embodiment of the present disclosure includes a plurality of winding units each including a yarn supplying unit that supplies a yarn and a winding device that winds the yarn supplied from the yarn supplying unit to form a package. And a carriage that travels in the arrangement direction of the plurality of winding units, and a controller that controls the operation of the carriage, and the carriage can move to a contact position that contacts the package and a standby position that is separated from the package. In addition, the contact device that adjusts the position of the package by contacting the package at the contact position, the drive unit dedicated to the contact device that moves the contact device to the contact position and the standby position, and the yarn from the package are captured. A catching device, a yarn joining device for joining the yarn from the yarn feeding unit and the yarn pulled out from the package of the winding device by the catching device, and the control unit controls the drive unit. And to adjust the contact pressure of the contact device in the contact position to the package.

In the textile machine according to an embodiment of the present disclosure, the contact pressure is adjusted. For example, the contact device is packaged with an appropriate contact pressure according to the type of package (type of yarn and / or winding method of the package). Can be contacted. As a result, the package surface can be prevented from being disturbed by the package plate.

In one embodiment, the standby position is the origin position of the contact device, and the control unit may adjust the contact pressure by adjusting the distance between the origin position and the contact position. In this configuration, the contact pressure can be adjusted with high accuracy.

In one embodiment, the textile machine includes an input unit that receives input of information related to the thickness of the yarn, and the control unit has a case where the thickness of the yarn indicated by the information input in the input unit is larger than a predetermined thickness The drive unit may be controlled so that the contact pressure is lower than when the thickness is smaller than the predetermined thickness. When the contact device contacts the package, if the contact pressure of the contact device abruptly acts on the package, the surface (surface layer) of the package may be disturbed. In particular, when the yarn is thick, the surface of the package is likely to be disturbed. Therefore, when the yarn is thick, it is possible to avoid the occurrence of disturbance on the surface of the package by lowering the contact pressure.

In one embodiment, the capturing device has a suction port that sucks and captures the yarn from the package, and the control unit has a constant distance between the suction port and the package regardless of the diameter of the package. As such, the contact pressure may be adjusted. In this configuration, since the distance between the suction port of the catching device and the package is kept constant, the catching of the yarn by the catching device can always be performed stably.

In one embodiment, the control unit may control the drive unit so that the contact pressure changes repeatedly when the capturing device captures the yarn from the package. When the contact device contacts the package, if the contact pressure of the contact device acts abruptly on the package, the package may be disturbed. In the textile machine, since the drive unit is controlled so that the contact pressure changes repeatedly, the force with which the contact device presses the package repeatedly changes. Therefore, it is possible to avoid the occurrence of disturbance on the surface of the package due to the contact device coming into contact with the package.

In one embodiment, the control unit may control the driving unit so that the contact device is positioned at the contact position after the catching device guides the yarn to the yarn joining device. In this configuration, the contact device can prevent the package from rotating due to the tension of the yarn captured by the capturing device. Accordingly, it is possible to prevent the yarn from becoming slack and to avoid the failure of the yarn joining in the yarn joining device.

In one embodiment, the carriage has a reverse rotation device that rotates the package in a direction in which the yarn is unwound, and the control unit is positioned at the contact position in a state where the package is rotated by the reverse rotation device. The drive unit may be controlled to do so. In this configuration, the yarn end attached to the package can be peeled off by contact between the contact device and the rotating package. Accordingly, it is possible to further improve the yarn catching accuracy by the catching device.

In one embodiment, the control unit includes a doffing cart that travels along the arrangement direction of the plurality of winding units and discharges the package from one winding unit that is full of the plurality of winding units. When the package becomes full with one winding unit, the dolly cart arrives after moving the contact device to the contact position in one winding unit, and the package is discharged by the dolly cart You may control a drive part and a doffing cart so that a contact device may be moved toward a standby position before. In this configuration, the inertial rotation of the package is already stopped by the contact device when the doffing cart arrives at the winding unit. Therefore, after arriving at the winding unit, the doffing cart can quickly discharge the package from the winding unit.

In one embodiment, the yarn supplying unit may include an air spinning device that generates a yarn by twisting the fiber bundle with a swirling flow of air. In this configuration, it is possible to avoid the surface of the package around which the yarn generated by the pneumatic spinning device is wound being disturbed by the package plate.

In one embodiment, the pneumatic spinning device is disposed above the winding device in the spinning unit, and the yarn may travel from the upper side to the lower side in the height direction of the spinning unit.

In one embodiment, the carriage moves the yarn joining device to the yarn joining position where the yarn joining is performed in the yarn joining device, and the retracted position away from the yarn path where the yarn travels from the yarn joining position. The yarn splicing drive unit may be provided. In this configuration, the yarn joining device operates (moves) independently of other devices. Therefore, the yarn joining device can be moved according to the timing at which the catching device catches the yarn.

According to one form of the present disclosure, the influence of the package plate on the quality of the package can be reduced.

FIG. 1 is a front view of a spinning machine according to an embodiment. FIG. 2 is a side view of the spinning machine shown in FIG. FIG. 3 is a diagram showing the configuration of the spinning machine. FIG. 4 is a timing chart showing the operation of the spinning machine. FIG. 5 is a diagram for explaining the operation of the spinning machine. FIG. 6 is a diagram showing the positions of the package and the suction mouse. FIG. 7 is a diagram for explaining the operation of the spinning machine. FIG. 8 is a diagram for explaining the operation of the spinning machine.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements will be denoted by the same reference numerals, and redundant description will be omitted.

As shown in FIG. 1, a spinning machine (textile machine) 1 includes a plurality of spinning units (winding units) 2, a yarn splicing cart (cart) 3, a doffing cart (not shown), and a first end. A frame 4 and a second end frame 5 are provided. The plurality of spinning units 2 are arranged in a line. Each spinning unit 2 generates the yarn Y and winds it on the package P. When the package P becomes full in a spinning unit 2, the doffing cart discharges the package P and supplies a new bobbin B to the spinning unit 2.

The first end frame 4 accommodates a collection device for collecting fiber waste and yarn waste generated in the spinning unit 2. The second end frame 5 is configured to adjust the air pressure of the compressed air (air) supplied to the spinning machine 1 to supply air to each part of the spinning machine 1 and to supply power to each part of the spinning unit 2. A drive motor or the like is stored. The second end frame 5 is provided with a machine control device (control unit) 15, a display screen 16, and an input key (input unit) 17. The machine control device 15 centrally manages and controls each part of the spinning machine 1. The display screen 16 can display information regarding the setting contents and / or status of the spinning unit 2. When the operator performs an appropriate operation using the input keys 17, the setting operation of the spinning unit 2 can be performed.

Each spinning unit 2 includes, in order from the upstream side in the running direction of the yarn Y, a draft device 6, an air spinning device (yarn feeding unit) 7, a yarn monitoring device 8, a tension sensor 9, a yarn storage device 11, A waxing device 12 and a winding device 13 are provided. The unit controller 10 is provided for each predetermined number of spinning units 2 and controls the operation of the spinning units 2.

The draft device 6 drafts a sliver (fiber bundle) S. The pneumatic spinning device 7 generates a yarn Y by twisting the fiber bundle F drafted by the draft device 6 by a swirling flow of air. More specifically (however, illustration is omitted), the pneumatic spinning device 7 includes a spinning chamber, a fiber guide portion, a swirling air flow generation nozzle, and a hollow guide shaft body. The fiber guide unit guides the fiber bundle F supplied from the upstream draft device 6 into the spinning chamber. The swirling airflow generation nozzle is disposed around the path along which the fiber bundle F travels. When air is injected from the swirling air flow generating nozzle, a swirling air flow is generated in the spinning chamber. By this swirling air flow, the fiber ends of the plurality of fibers constituting the fiber bundle F are reversed and swirled. The hollow guide shaft body guides the yarn Y from the spinning chamber to the outside of the pneumatic spinning device 7.

The yarn storage device 11 removes the slack of the yarn Y between the pneumatic spinning device 7 and the winding device 13. The waxing device 12 applies wax to the yarn Y between the yarn storage device 11 and the winding device 13.

The winding device 13 forms the package P by winding the yarn Y around the bobbin B. The winding device 13 includes a cradle arm 21, a winding drum 22, and a traverse guide 23. The cradle arm 21 supports the bobbin B so as to be rotatable. The cradle arm 21 is swingably supported by a support shaft 24 and brings the surface of the bobbin B or the surface of the package P into contact with the surface of the winding drum 22 with an appropriate pressure. A drive motor (not shown) provided on the second end frame 5 drives the winding drums 22 of the plurality of spinning units 2 all at once. Thereby, in each spinning unit 2, the bobbin B or the package P is rotated in the winding direction. The traverse guide 23 of each spinning unit 2 is provided on a shaft (not shown) shared by the plurality of spinning units 2. The traverse guide 23 traverses the yarn Y with a predetermined width with respect to the rotating bobbin B or package P by the drive motor of the second end frame 5 reciprocatingly driving the shaft in the direction of the rotation axis of the winding drum 22.

The yarn monitoring device 8 monitors information on the traveling yarn Y between the pneumatic spinning device 7 and the yarn storage device 11, and detects the presence or absence of a yarn defect based on the monitored information. When the yarn monitoring device 8 detects a yarn defect, the yarn monitoring device 8 transmits a yarn defect detection signal to the unit controller 10. The tension sensor 9 measures the tension of the traveling yarn Y between the pneumatic spinning device 7 and the yarn storage device 11, and transmits a tension measurement signal to the unit controller 10. When the unit controller 10 determines that there is an abnormality based on the detection result of the yarn monitoring device 8 and / or the tension sensor 9, the yarn Y is cut in the spinning unit 2.

In the spinning unit 2 having the above configuration, the pneumatic spinning device 7 is disposed above the winding device 13. Thereby, the yarn Y travels from the upper side to the lower side in the height direction of the spinning unit 2. However, the traveling direction of the yarn Y is not limited to this direction. For example, the pneumatic spinning device 7 may be disposed below the winding device 13 so that the yarn Y travels from the lower side toward the upper side.

The yarn splicing cart 3 performs a yarn splicing operation in the spinning unit 2 when the yarn Y is cut in a certain spinning unit 2 or the yarn Y is cut for some reason. One or a plurality of yarn joining carts 3 are provided in the spinning machine 1. The yarn joining cart 3 travels along the arrangement direction of the spinning units 2 (the left-right direction in FIG. 1). As shown in FIG. 1, the yarn splicing cart 3 travels by driving wheels by a travel motor 18.

As shown in FIG. 2, the yarn splicing carriage 3 includes a yarn splicing device 26, a suction pipe 27, a suction mouth (capturing device) 28, a yarn guide 33, a package plate (contact device) 34, and a reverse rotation. And a device 35. As shown in FIG. 3, the yarn splicing carriage 3 includes a first drive unit 40 that drives the suction pipe 27, a second drive unit 41 that drives the suction mouse 28, and a third drive that drives the yarn splicing device 26. A part (yarn splicing drive part) 42, a fourth drive part 43 for driving the yarn guide 33, a fifth drive part 44 for driving the package plate 34, a sixth drive part 45 for driving the reverse rotation device 35, have. The machine base control device 15 includes a first drive unit 40, a second drive unit 41, a third drive unit 42, a fourth drive unit 43, a fifth drive unit 44, and a sixth drive unit 45. Control.

The yarn joining device 26 performs yarn joining of the guided first yarn Y1 (see FIG. 8) and second yarn Y2 (see FIG. 8). The yarn joining device 26 is a splicer that uses compressed air or a knotter that mechanically joins the yarn Y. In the present embodiment, a splicer will be described as an example. The yarn joining device 26 is a piecer that joins the yarn Y by feeding the yarn Y from the package P back to the pneumatic spinning device 7 and starting the drafting operation of the drafting device 6 and the spinning operation of the pneumatic spinning device 7. May be. The yarn joining device 26 includes a yarn joining portion 26a, a support body 26b, a rail 26c, and a motor 26d.

The yarn joining portion 26a is a yarn joining nozzle that joins the first yarn Y1 drawn from the pneumatic spinning device 7 and the second yarn Y2 drawn from the package P, and a first solution for untwisting the yarn end of the first yarn Y1. The twisted pipe, the second flame removal pipe that deflakes the yarn end of the second yarn Y2, the first clamp portion that clamps the first yarn Y1, the second clamp portion that clamps the second yarn Y2, and the first yarn Y1 are regulated. A first yarn holding lever and a first yarn holding lever, and a second yarn holding lever and a second yarn holding lever for regulating the second yarn Y2 (both not shown). The motor 26d is a drive source of a cam mechanism that operates the first thread pull lever, the second thread pull lever, the first thread press lever, and the second thread press lever.

The support body 26b supports the yarn joining portion 26a. The support 26b is slidably attached to the rail 26c. The rail 26c is fixed to the housing of the yarn splicing cart 3, and extends in a direction substantially orthogonal to the traveling direction and the vertical direction of the yarn splicing cart 3.

In the yarn joining device 26, the operation of the third driving unit 42 causes the yarn joining portion 26a supported by the support body 26b to move along the rail 26c. The yarn joining portion 26a moves to a yarn joining position where the yarn joining is performed (see FIG. 8) and a retracting position where the yarn joining is not performed (see FIG. 2). The 3rd drive part 42 is a single acting cylinder, for example. One end of the single-acting cylinder that is the third drive unit 42 is connected to the support body 26 b, and the other end of the single-acting cylinder is fixed to the housing of the yarn splicing carriage 3. The third drive unit 42 is a drive source dedicated to the yarn joining device 26. Therefore, the yarn joining device 26 (yarn joining portion 26a) can be operated (moved) independently of other devices.

The suction pipe 27 is rotatably supported by the support shaft 31, and captures the first yarn Y1 from the pneumatic spinning device 7 and guides it to the yarn joining device 26. The suction pipe 27 has a standby position P11, a first yarn catching position P12 (see FIG. 7) for catching the first yarn Y1 from the pneumatic spinning device 7, and a first guide for guiding the first yarn Y1 to the yarn joining device 26. It is movably provided at the yarn guide position P13 (see FIG. 8).

The suction pipe 27 is moved to the standby position P11, the first yarn catching position P12, and the first yarn guiding position P13 by the operation of the first drive unit 40. The first drive unit 40 is, for example, a motor.

The suction mouse 28 is rotatably supported by the support shaft 32, and captures the second yarn Y2 from the winding device 13 and guides it to the yarn joining device 26. The suction mouse 28 has a capturing part 28a that captures the second yarn Y2, and a support part 28b that movably supports the capturing part 28a. The capturing part 28a is a suction port provided at the tip of the support part 28b (tip of the suction mouse 28). The suction port is provided in the catching portion 28a so that the suction port faces the surface of the package P when the suction mouth 28 is located at the second yarn catching position P22.

The suction mouse 28 has a standby position (initial position) P21, a second yarn catching position P22 (see FIG. 7) for catching the second yarn Y2 from the winding device 13, and the second yarn Y2 to the yarn joining device 26. The second yarn guide position P23 (see FIG. 8) to be guided is movably provided. The suction mouse 28 is moved to the standby position P21, the second thread catching position P22, and the second thread guide position P23 by the operation of the second drive unit 41. The second drive unit 41 is, for example, a motor (stepping motor).

The yarn guide 33 regulates the position of the yarn Y in the direction orthogonal to the traveling direction of the yarn Y. The yarn guide 33 is located between the yarn joining device 26 and the package P. The yarn guide 33 has a restriction plate 33a and a pair of restriction bars 33b. One end of the restriction plate 33a is connected to a support shaft. Thereby, the restriction plate 33a is provided so as to be able to swing around the support shaft.

The pair of restriction bars 33b are disposed on the restriction plate 33a. One end of each of the pair of regulation bars 33b is connected to a shaft provided on the regulation plate 33a. As a result, the pair of regulating bars 33b can swing around the shaft by the operation of a drive source (not shown). Each of the pair of regulating bars 33b moves in a proximity direction that is close to each other and a separation direction that is apart from each other. At a position where the pair of regulation bars 33b are close to each other, the pair of regulation bars 33b extend in parallel to each other. At this time, the yarn Y sandwiched between the pair of regulation bars 33b is located at the approximate center in the width direction of the package P.

The yarn guide 33 is moved to a restriction position (see FIG. 5) where the restriction plate 33a overlaps the yarn path and a retreat position (see FIG. 2) where the restriction plate 33a does not overlap the yarn path by the swinging of the restriction plate 33a. Is possible. The restriction position is a position where the yarn guide 33 restricts the yarn Y so that the yarn Y is not traversed by the traverse guide 23. When viewed from the side surface shown in FIG. 2, the restriction plate 33a swings to move the position of the tip thereof back and forth with respect to the yarn path. The yarn guide 33 moves to the restricting position and the retracted position by the operation of the fourth driving unit 43. The fourth drive unit 43 is, for example, a cylinder.

The package plate 34 contacts the package P supported by the winding device 13 and applies pressure to the package P to position the package P. The package plate 34 can brake the package P (decelerate and stop inertial rotation of the package P) by making frictional contact with the package P separated from the winding drum 22 when winding of the package P is interrupted. The braking time of the package P, that is, the length of time for which the package plate 34 is brought into contact with the package P can be appropriately set according to the diameter of the package P. The package plate 34 has a support arm 34a and a contact plate 34b. One end of the support arm 34a is connected to a support shaft. Accordingly, the support arm 34a can swing around the support shaft. The contact plate 34b is provided at the other end of the support arm 34a. The contact plate 34 b is a plate member having a surface that contacts the package P.

The package plate 34 has a standby position P3 (see FIG. 2) where the contact plate 34b does not contact the package P due to the swing of the support arm 34a, and a contact position P4 (see FIG. 5) where the contact plate 34b contacts the package P. , Can be moved to. In the present embodiment, the standby position P3 is the origin position of the package plate 34. The package plate 34 moves to the standby position P3 and the contact position P4 by the operation of the fifth drive unit 44. The fifth drive unit 44 is, for example, a motor (stepping motor).

The package plate 34 is provided with a distance sensor 34c. The distance sensor 34c is disposed at the tip of the contact plate 34b. The distance sensor 34c detects the distance between the contact plate 34b (specifically, the tip of the contact plate 34b) and the package P. The distance sensor 34c is, for example, an optical distance measuring sensor. The distance sensor 34 c transmits a detection signal indicating the detection result to the machine control device 15.

The package plate 34 is provided with a cleaning portion 34d. The cleaning unit 34d jets or sucks air. The cleaning unit 34d is disposed on the contact plate 34b, for example. The operation of the cleaning unit 34d is controlled by the machine base control device 15.

The reverse rotation device 35 reversely rotates the package P of the winding device 13. The reverse rotation device 35 includes a support arm 35a and a reverse rotation roller 35b. One end of the support arm 35a is connected to a support shaft. Accordingly, the support arm 35a can swing around the support shaft. The reverse rotation roller 35b is provided at the other end of the support arm 35a. The reverse rotation roller 35b rotates in a direction opposite to the winding drum 22 of the winding device 13 by a driving source (motor) (not shown).

The reverse rotation device 35 includes a retracted position (see FIG. 2) where the reverse rotation roller 35b does not contact the package P due to the swing of the support arm 35a, and a contact position (see FIG. 7) where the reverse rotation roller 35b contacts the package P Move to. The reverse rotation device 35 is moved to the retracted position and the contact position by the operation of the sixth drive unit 45. The sixth drive unit 45 is, for example, a motor.

Subsequently, the operation of the yarn joining cart 3 will be described with reference to FIG. Refer to FIGS. 2 and 5 to 8 for the movement of each part of the yarn splicing carriage 3. FIG. In the following description, the operation of each drive unit is controlled based on a control signal transmitted from the machine base control device 15.

When a yarn break or a yarn cut occurs in one spinning unit 2, the machine control device 15 transmits a control signal for moving the yarn joining cart 3 to the one spinning unit 2 to the yarn joining cart 3. When receiving the control signal, the yarn splicing carriage 3 travels to the one spinning unit 2 and the traveling motor 18 stops operating in front of the one spinning unit 2 to stop traveling. In the spinning unit 2, the cradle arm 21 of the winding device 13 is moved away from the winding drum 22 to separate the package P from the winding drum 22.

Next, the yarn guide 33 and the package plate 34 are operated. The fourth drive unit 43 operates when the yarn joining cart 3 stops or before it stops, and moves the yarn guide 33. The yarn guide 33 moves from the retracted position to the restriction position and stops at the restriction position. At this time, the pair of regulating bars 33b of the yarn guide 33 are in a separated state.

The fifth drive unit 44 operates when the yarn joining cart 3 stops or before it stops, that is, at the same timing as the start of operation of the fourth drive unit 43, and moves the package plate 34. The package plate 34 moves from the standby position P3 to the contact position P4 and stops at the contact position P4.

The machine base control device 15 adjusts the contact pressure of the package plate 34 with respect to the package P at the contact position P4. Specifically, the machine base control device 15 acquires the thickness (count) of the yarn Y and adjusts the contact pressure based on the thickness of the yarn Y. The machine control device 15 acquires the thickness of the yarn Y based on the information (count) related to the thickness of the yarn Y input by the operation of the input key 17 by the operator. Alternatively, the machine control device 15 acquires the thickness of the yarn Y from the information regarding the lot input by operating the input key 17. The machine control device 15 is more suitable when the thickness of the yarn Y is larger than a predetermined thickness (for example, the British cotton count is Ne30) (for example, when the yarn Y is a thick count), compared with the case where the thickness is smaller than the predetermined thickness. Adjust the contact pressure to be low.

The machine base control device 15 sets the contact position P4 so that the package plate 34 contacts the package P by the adjusted contact pressure. Thereby, for example, when the package plate 34 contacts the package P wound with the thick yarn Y, rather than when contacting the package P wound with the middle or fine yarn Y, at the same diameter. Is lighter (weaker) and contacts the package P.

The machine base control device 15 adjusts the distance between the standby position P3 (origin position) and the contact position P4 so that the package plate 34 is positioned at the set contact position P4, and sends a control signal to the fifth drive unit 44. Is output. When the fifth drive unit 44 is a stepping motor, the machine base control device 15 outputs a pulse for moving a predetermined distance from the standby position P3 (origin position) to the fifth drive unit 44 and packages it at the contact position P4. Position plate 34. Thereby, the package plate 34 contacts the package P with the adjusted contact pressure at the contact position P4. When the contact plate 34b contacts the package P, the rotation of the package P is stopped and the position of the package P is set.

In the spinning machine 1, as shown in FIGS. 6A and 6B, the machine base control device 15 is provided between the package P and the capturing portion of the suction mouse 28 when the diameter of the package P is small. The movement distance of the package plate 34 is adjusted so that the distance D1 and the distance D2 between the package P and the capturing part of the suction mouse 28 when the diameter of the package P is large are the same distance (D1 = D2). is doing.

The machine base control device 15 controls the fifth drive unit 44 so that when the suction mouse 28 captures the second yarn Y2 from the package P, the contact pressure repeatedly changes in strength. Specifically, the machine base control device 15 controls the current supplied to the fifth drive unit 44 (increases or decreases the current amount), and repeatedly changes the contact pressure. The machine control device 15 reduces the current value supplied to the fifth drive unit 44 when reducing the contact pressure, and sets the current value supplied to the fifth drive unit 44 when increasing the contact pressure. Control to increase. The machine base control device 15 stops the package plate 34 at the contact position P4 for a predetermined time, and then operates the fifth drive unit 44 to move the package plate 34 from the contact position P4 to the standby position P3. Stop at.

Next, the operation of the suction mouse 28 and the reverse rotation device 35 will be described. When the package plate 34 returns to the standby position P3 or stops at the standby position P3, the second drive unit 41 moves the suction mouse 28 from the standby position P21 to the second yarn catching position P22, and the sixth drive unit 45 The reverse rotation device 35 is moved from the retracted position to the contact position. When the reverse rotation roller 35b of the reverse rotation device 35 contacts the package P, the rotation reverse rotation roller 35b rotates the package P in the direction in which the second yarn Y2 is unwound, and the suction yarn 28 captures the second yarn Y2. .

When the second thread Y2 is captured by the suction mouse 28, the second drive unit 41 moves the suction mouse 28 from the second thread capture position P22 to the second thread guide position P23 to reach the second thread guide position P23. Stop. Accordingly, the second yarn Y2 is guided to the yarn joining device 26. The success or failure of capturing the second thread Y2 in the suction mouse 28 may be determined by the machine control device 15 based on the detection result of a sensor (not shown) provided in the suction mouse 28.

The machine base control device 15 may control the fifth drive unit 44 so that the package plate 34 is positioned at the contact position P4 when the second yarn Y2 is not captured by the suction mouse 28. Alternatively, the machine base control device 15 may control the fifth drive unit 44 so that the package plate 34 is positioned at the contact position P4 in a state where the package P is rotated by the reverse rotation device 35. That is, the contact plate 34 b may be brought into contact with the package P in a state where the package P is rotated in the reverse direction by the reverse rotation device 35.

The sixth drive unit 45 moves the reverse rotation device 35 from the contact position to the standby position when the suction mouse 28 stops at the standby position P21. Thereby, the rotation of the package P is stopped. At this time, the machine base control device 15 may control the fifth drive unit 44 so that the contact plate 34b is positioned at the contact position P4.

The yarn guide 33 operates the pair of regulating bars 33b when the suction mouse 28 is positioned at the second thread guide position P23. Specifically, the pair of regulation bars 33b are moved in the proximity direction. Accordingly, the second yarn Y2 captured by the suction mouse 28 is positioned by the pair of regulation bars 33b.

Next, the operation of the suction pipe 27 will be described. The first drive unit 40 moves the suction pipe 27 at the timing when the second yarn Y2 is captured by the suction mouse 28 and the suction mouse 28 moves to a predetermined position. Specifically, when the second drive unit 41 is a stepping motor, the machine base control device 15 detects the position of the suction mouse 28 based on the number of pulses output to the stepping motor. The machine control device 15 detects the position of the suction mouse 28 and transmits a control signal to the first drive unit 40 when the suction mouse 28 reaches a predetermined position.

The operation of the first drive unit 40 causes the suction pipe 27 to move from the standby position P11 to the first yarn catching position P12 and catch the first yarn Y1 at the first yarn catching position P12. Whether or not the first pipe Y1 is captured in the suction pipe 27 may be determined by the machine control device 15 based on the detection result of a sensor (not shown) provided in the suction pipe 27. When the first thread Y1 is captured by the suction pipe 27, the first drive unit 40 moves the suction pipe 27 from the first thread capturing position P12 to the first thread guide position P13. Accordingly, the first yarn Y1 is guided to the yarn joining device 26. The suction pipe 27 stops at the standby position P11 when the first yarn Y1 is guided to the yarn joining device 26.

Next, the operation of the yarn joining device 26 will be described. The third drive unit 42 is configured such that the timing at which the first yarn Y1 is captured by the suction pipe 27, the timing at which the suction pipe 27 starts moving to the first yarn guide position P13, or the first yarn guide position of the suction pipe 27. During the movement to P13, the yarn joining portion 26a is moved from the standby position to the yarn joining position. The yarn joining portion 26a performs the yarn joining between the first yarn Y1 and the second yarn Y2 at the yarn joining position, and releases the yarn Y when the yarn joining is completed.

Thereafter, the third drive unit 42 is operated, and the yarn joining portion 26a moves from the yarn joining position to the retracted position and stops at the retracted position. When the yarn joining is completed in the yarn joining portion 26a, the pair of regulating bars 33b of the yarn guide 33 moves in the separating direction. As a result, the restriction of the yarn Y by the yarn guide 33 is released. The fourth drive unit 43 operates at the timing when the yarn joining portion 26a moves to the retracted position, and moves the yarn guide 33 from the restricted position to the retracted position. Thus, a series of operations by the yarn joining cart 3 is completed. Thereafter, the machine base control device 15 transmits, for example, a control signal for moving the yarn joining cart 3 to the next spinning unit 2 to the yarn joining cart 3.

When the package P is full in a spinning unit 2, the machine control device 15 sets the yarn splicing cart 3 to the package if the doffing cart is discharging the package P in another spinning unit 2, for example. You may make it drive | work to the spinning unit 2 to which P became newly full. Then, the package plate 34 may be brought into contact with the package P in the spinning unit 2. As a result, when the doffing cart arrives at the spinning unit 2, the inertial rotation of the package P is stopped, and the doffing cart can start discharging the package P immediately at the spinning unit 2. The package plate 34 may be located at the contact position at the time when the doffing cart arrives, and it is only necessary to start the separation from the package P before the doffing cart starts discharging the package P. Depending on the type of package P (the type of yarn Y and / or how to wind the package P, etc.), the contact pressure when the package plate 34 contacts the fully wound package P may also be adjusted.

As described above, in the spinning machine 1 according to this embodiment, the machine base control device 15 adjusts the contact pressure of the package plate 34 with respect to the package P at the contact position P4. Thereby, for example, the package plate 34 can be brought into contact with the package P with an appropriate contact pressure according to the type of the package P (the type of the yarn Y and / or the winding method of the package P). As a result, it is possible to avoid the surface of the package P being disturbed by the package plate 34.

In the spinning machine 1 according to the present embodiment, the standby position P3 of the package plate 34 is the origin position of the contact device. The machine base control device 15 adjusts the contact pressure by adjusting the distance between the origin position and the contact position P4. In this configuration, the contact pressure can be adjusted with high accuracy.

In the spinning machine 1 according to the present embodiment, the spinning machine 1 includes an input key 17 that receives input of information relating to the thickness of the yarn Y. The machine base control device 15 performs the fifth drive so that the contact pressure is lower when the Y thickness of the yarn indicated by the information input with the input key 17 is larger than the predetermined thickness, compared with the case where the Y thickness is smaller than the predetermined thickness. The unit 44 is controlled. When the package plate 34 contacts the package P, if the contact pressure of the package plate 34 abruptly acts on the package P, the surface (surface layer) of the package P may be disturbed. In particular, when the yarn Y is thick, the surface of the package P is likely to be disturbed. Therefore, when the yarn Y is thick, it is possible to avoid the occurrence of disturbance on the surface of the package P by reducing the contact pressure.

In the spinning machine 1 according to the present embodiment, when the suction mouth 28 captures the second yarn Y2 from the package P, the machine base control device 15 repeats the contact pressure with respect to the package P of the package plate 34 at the contact position P4. The fifth drive unit 44 is controlled to change. In the spinning machine 1, the fifth driving unit 44 is controlled so that the contact pressure changes repeatedly, so that the force with which the package plate 34 presses the package P changes repeatedly. Therefore, it is possible to avoid the occurrence of disturbance on the surface of the package P due to the package plate 34 coming into contact with the package P.

In the spinning machine 1 according to the present embodiment, the machine base control device 15 includes the fifth drive unit so that the package plate 34 contacts the package P after the suction mouth 28 guides the second yarn Y2 to the yarn joining device 26. 44 is controlled. That is, in the state where the package plate 34 is in the standby position, the machine base control device 15 causes the suction mouse 28 to guide the second yarn Y2 to the yarn joining device 26, and after the guidance ends, the package plate 34 moves from the standby position to the contact position. The fifth drive unit 44 is controlled so as to move to. In this configuration, the package plate 34 can prevent the package P from rotating due to the tension of the second yarn Y <b> 2 captured by the suction mouse 28. Accordingly, it is possible to prevent the second yarn Y2 from being loosened, and to avoid a yarn joining failure in the yarn joining device 26. In particular, when the yarn Y is thick (the yarn Y is thick), the package P can be rotated even after the suction mouth 28 guides the second yarn Y2, so that the package plate 34 prevents the package P from rotating. It is good to keep.

In the spinning machine 1 according to the present embodiment, the yarn splicing carriage 3 includes a reverse rotation device 35 that rotates the package P in the direction in which the yarn Y is unwound. The machine base control device 15 controls the fifth drive unit 44 so that the package plate 34 is positioned at the contact position P4 in a state where the package P is rotated by the reverse rotation device 35. In this configuration, the yarn end attached to the package P can be peeled off by contact between the package plate 34 and the rotating package P. Therefore, the accuracy of capturing the second yarn Y2 by the suction mouse 28 can be further improved.

The spinning machine 1 according to the present embodiment travels along the arrangement direction of the plurality of spinning units 2, and the doffing cart that discharges the package P from one spinning unit 2 that is full of the plurality of spinning units 2. Is provided. When the package P is full in one spinning unit 2, the machine control device 15 waits after the package plate 34 is positioned at the contact position P4 before the doffing cart arrives at the one spinning unit 2. The fifth drive unit 44 is controlled so as to be positioned at the position P3. In this configuration, the inertia rotation of the package P is already stopped by the package plate 34 when the doffing cart arrives at the spinning unit 2. Therefore, after arriving at the spinning unit 2, the doffing cart can quickly discharge the package P from the spinning unit 2.

In the spinning machine 1 according to the present embodiment, the package plate 34 includes a distance sensor 34c that detects the distance between the package P and the contact plate 34b. In this configuration, the distance between the contact plate 34b and the package P can be adjusted with high accuracy. It is also possible to calculate the diameter of the package P based on the distance between the contact plate 34b and the package P.

As mentioned above, although embodiment of this invention has been described, this invention is not necessarily limited to embodiment mentioned above, A various change is possible in the range which does not deviate from the summary.

In the above embodiment, the spinning machine 1 including the plurality of spinning units 2 is described as an example of the textile machine. However, the textile machine may be an automatic winder including a plurality of winding units. In this case, the yarn supplying unit is a support unit that supports the bobbin or the package.

In the above embodiment, the yarn splicing device 26, the suction pipe 27, the suction mouth 28, the yarn guide 33, and the reverse rotation device 35 are respectively the third drive unit 42, the first drive unit 40, the second drive unit 41, and the fourth drive unit. The mode driven by the drive unit 43 and the sixth drive unit 45 has been described as an example. However, the yarn splicing device 26, the suction pipe 27, the suction mouth 28, the yarn guide 33, and the reverse rotation device 35 may be driven by one drive unit. Alternatively, at least any two of the yarn joining device 26, the suction pipe 27, the suction mouth 28, the yarn guide 33, and the reverse rotation device 35 may be driven by the same drive unit.

In the above embodiment, an example in which the fifth drive unit 44 is a stepping motor has been described. However, the fifth drive unit 44 may be a servo motor.

In the above-described embodiment, the first to sixth driving units 40 to 45 have been described with respect to an example in which they are motors, cylinders, and the like. However, the first to sixth drive units 40 to 45 may be drive sources other than the above example.

In the above embodiment, the mode in which the operation of the yarn splicing cart 3 is controlled by the machine control device 15 has been described as an example. However, the control of the yarn joining cart 3 may be performed by a cart controller (control unit) provided in the yarn joining cart 3. In this case, a signal indicating yarn breakage or yarn cut may be transmitted from the unit controller 10 to the cart controller, or the signal may be transmitted from the unit controller 10 to the cart controller via the machine controller 15. The unit controller 10 may control the operation of the yarn splicing cart 3.

In the above embodiment, the formation of the package plate 34 having the support arm 34a and the contact plate 34b has been described as an example. However, the configuration of the package plate is not limited to the example. The package plate may have any configuration as long as the package plate is configured to press and position the package P by moving from the standby position to the contact position.

In the above embodiment, an example in which the distance sensor 34c is provided on the package plate 34 has been described. However, the distance sensor 34c may not be provided. In this case, the diameter of the package P may be obtained based on the length of the yarn Y wound around the package P. In the above-described embodiment, the form in which the cleaning part 34d is provided in the package plate 34 has been described as an example. However, the cleaning unit 34d may not be provided.

In the above-described embodiment, an example in which the reverse rotation device 35 includes the support arm 35a and the reverse rotation roller 35b has been described. However, the configuration of the reverse rotation device is not limited to the example. The reverse rotation device may have any configuration as long as the package P is rotated in the direction in which the yarn Y is unwound from the package P.

In the above embodiment, an example in which the fifth driving unit 44 is a stepping motor is taken as an example, and an example in which the machine control device 15 detects the position of the package plate 34 based on the number of pulses output to the stepping motor is taken as an example. Explained. However, a sensor or the like for detecting the position of the package plate 34 may be provided.

In the above embodiment, the spinning machine 1 has been described as an example in which the spinning machine 1 includes the yarn joining cart 3 and the doffing cart. However, the yarn joining cart may have a doffing function.

In addition to the above embodiment, the air spinning device 7 is disposed so as to be held by the fiber guide portion and protrude into the spinning chamber in order to prevent the twist of the fiber bundle from being transmitted to the upstream side of the air spinning device. A needle may be further provided. In addition, the pneumatic spinning device may prevent the twist of the fiber bundle from being transmitted to the upstream side of the pneumatic spinning device by using the downstream end portion of the fiber guide portion instead of such a needle. Further, the pneumatic spinning device may include a pair of air jet nozzles that twists the fiber bundle in opposite directions instead of the above configuration. The spinning machine may be an open-end spinning machine.

In the above embodiment, in the spinning unit 2, the yarn storage device 11 has a function of drawing the yarn Y from the pneumatic spinning device 7. However, the yarn Y may be drawn from the pneumatic spinning device 7 by the delivery roller and the nip roller. . In this case, the yarn storage device 11 may be omitted. Alternatively, in this case, a slack tube or a mechanical compensator that absorbs the slack of the yarn Y by a suction air flow may be provided instead of the yarn accumulating device 11.

In the above embodiment, the traverse guide 23 is driven by the power from the second end frame 5 (that is, common to a plurality of spinning units 2). However, each part of the spinning unit 2 (for example, a drafting device, a winding device, etc.) may be driven independently for each spinning unit 2.

The suction pipe 27 may have a nozzle for twisting the yarn end of the first yarn Y1.

In the traveling direction of the yarn Y, the tension sensor 9 may be arranged on the upstream side of the yarn monitoring device 8. The unit controller 10 may be provided for each spinning unit 2. In the spinning unit 2, the yarn monitoring device 8, the tension sensor 9, and the waxing device 12 may be omitted.

In the above-described embodiment, as shown in FIG. 1, an example in which the cheese-shaped package P is wound up has been described. However, it is also possible to wind up a cone-shaped package.

DESCRIPTION OF SYMBOLS 1 ... Spinning machine (textile machine), 2 ... Spinning unit (winding unit), 3 ... Yarn splicing cart, 7 ... Pneumatic spinning device (yarn feeding unit), 13 ... Winding device, 15 ... Machine base control device (control) Part), 26 ... yarn joining device, 28 ... suction mouse (capturing device), 34 ... package plate (contact device), 35 ... reverse rotation device, 42 ... third driving unit (yarn joining driving unit), 44 ... fifth Drive unit (drive unit), P ... package, P3 ... standby position, P4 ... contact position, Y ... thread.

Claims

A plurality of winding units each having a yarn supplying unit for supplying yarn, and a winding device for winding the yarn supplied from the yarn supplying unit to form a package;
A carriage that runs along the direction of arrangement of the plurality of winding units;
A control unit for controlling the operation of the carriage,
The cart is
A contact device that is movable to a contact position that contacts the package and a standby position that is separated from the package, and that adjusts the position of the package by contacting the package at the contact position;
A drive unit dedicated to the contact device for moving the contact device to the contact position and the standby position;
A catching device for catching the yarn from the package;
A yarn joining device for piecing the yarn from the yarn feeding unit and the yarn pulled out from the package of the winding device by the catching device;
The said control part is a textile machine which controls the said drive part and adjusts the contact pressure of the said contact apparatus in the said contact position with respect to the said package.
The standby position is the origin position of the contact device,
The textile machine according to claim 1, wherein the control unit adjusts the contact pressure by adjusting a distance between the origin position and the contact position.
An input unit for receiving input of information relating to the thickness of the yarn;
The control unit drives the drive so that the contact pressure is lower when the thickness of the thread indicated by the information input in the input unit is larger than a predetermined thickness, compared to when the thickness is thinner than the predetermined thickness. The textile machine of Claim 1 or 2 which controls a part.
The capturing device has a suction port for sucking and capturing the yarn from the package;
The control unit according to any one of claims 1 to 3, wherein the control unit adjusts the contact pressure so that a distance between the suction port and the package is constant regardless of a diameter of the package. Textile machinery.
The control unit according to any one of claims 1 to 4, wherein when the capturing device captures the yarn from the package, the control unit controls the driving unit so that the contact pressure is repeatedly changed. Textile machinery.
The control unit controls the drive unit so that the contact device is positioned at the contact position after the catching device guides the yarn to the yarn joining device. The textile machine as described in.
The carriage has a reverse rotation device that rotates the package in a direction in which the yarn is unwound,
The control unit according to any one of claims 1 to 6, wherein the control unit controls the driving unit so that the contact device is positioned at the contact position in a state where the package is rotated by the reverse rotation device. Textile machinery.
A dolly cart that travels along the arrangement direction of the plurality of winding units and discharges the package from one winding unit that is full of the plurality of winding units,
When the package is fully wound in one winding unit, the control unit moves the contact device to the contact position in one winding unit, and then the doffing cart arrives. The drive unit and the doffing cart are controlled so that the contact device is moved toward the standby position before the package is discharged by the doffing cart. The textile machine as described in.
The textile machine according to any one of claims 1 to 8, wherein the yarn supplying unit includes an air spinning device that generates a yarn by twisting a fiber bundle by a swirling flow of air.
The yarn supplying section is disposed above the winding device in the winding unit,
The textile machine according to any one of claims 1 to 9, wherein the yarn travels from an upper side to a lower side in a height direction of the winding unit.
The bogie moves the yarn joining device to a yarn joining position where the yarn joining is performed in the yarn joining device, and a retracted position away from the yarn path where the yarn travels from the yarn joining position. The textile machine according to any one of claims 1 to 10, further comprising a yarn splicing drive unit.