JP3074945B2 - Pipe replacement method and pipe replacement device in roving machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe changing method and a pipe changing apparatus for a roving machine equipped with a top-supported flyer.

[0002]

2. Description of the Related Art In recent years, there has been a remarkable tendency in roving machines to achieve higher speeds and large packages in order to improve productivity.
Therefore, the doffing operation of removing the full bobbin from the bobbin rail and the operation of inserting an empty bobbin into the bobbin wheel instead require not only a considerable amount of labor (especially doffing operation) but also the time required for the operation. This will increase the operating efficiency of the roving machine. For this reason, various proposals have been made regarding automation of the pipe replacement operation including the doffing operation and the subsequent supply of the empty bobbin.

[0003] Conventionally, for example, Japanese Patent Publication No. 63-61414 has proposed an apparatus shown in FIGS. The pipe changer 80 is a roving machine 81
In front of the entire length of the machine. The tube changing device 80 includes a tube changing arm 82 arranged in a zigzag manner facing the bobbin of the roving machine 81, a tube changing arm longitudinal movement mechanism 83 for moving the tube changing arm 82 forward and backward, and raising and lowering the tube changing arm 82. And a tube replacement arm elevating mechanism 84 for moving. Replacement arm longitudinal movement mechanism 83
Is mounted on a replacement head 85 connected to a replacement arm lifting mechanism 84. Below the transfer arm 82, a peg conveyor 86 in which two front and rear pegs 86a are arranged at the same position as the front and rear bobbin intervals of the roving frame 81 and opposed to each bobbin of the roving frame 81 is arranged. ing. The upper surface of the tube replacement head 85 is covered with a cover, and in a state where the tube replacement arm 82 is located at the lowest position as shown by a solid line in FIG. 31, the cover can be used as a step over the peg conveyor 86. I have.

When a pipe replacement operation is performed by this apparatus, the pipe replacement head 85 is arranged at the highest position as indicated by a chain line in FIG. Peg conveyor 8 in that state
6 is driven, and at one end, empty bobbins are sequentially supplied onto the pegs 86a. As shown in FIG. 32 (a), empty bobbins E are arranged at positions facing each full bobbin F of the roving machine 81. You. Then, after the roving machine 81 is stopped due to full filling, the full bobbin F is doffed from the bobbin rail 87 onto the peg conveyor 86 by the operation of the tube exchanging arm longitudinal movement mechanism 83 and the tube exchanging arm elevating mechanism 84, and the peg conveyor The empty bobbin E on 86 is placed on the bobbin rail 87.

Japanese Patent Application Laid-Open No. 58-119562 proposes an apparatus shown in FIG. In this apparatus, a rail 88 is disposed above a roving machine 81 so as to be orthogonal to the machine base longitudinal direction (perpendicular to the paper surface), and a crane 89 is provided movably along the rail 88. Crane 89
Has a transport rail 9 having substantially the same length as the entire length of the roving machine 81.
0, 91 extend parallel to the machine base, and elevating devices 92, 93
Are provided so as to be independently movable up and down. A bobbin hanger 94 is provided on the transport rails 90 and 91 by the roving machine 81.
The carriages (not shown) are arranged in one row at the bobbin pitch. On the front side of the roving machine 81, a tube changing machine 95 is disposed so as to be movable between a standby position shown in FIG. 34 and a working position close to the roving machine 81 advanced from the position.

At the time of the pipe change operation, the crane 89 is moved and arranged at a position where the first transfer rail 90 faces the pipe change arm 82 of the pipe changer 95 at the standby position. In this state, the refilling machine 95 moves forward to the working position, suspends the full bobbin F on the bobbin rail 87 on the refilling arm 82, then retreats to the standby position and arranges the refilling arm 82 in a line. I do. Next, the elevating device 92 operates to lower the first transport rail 90. Then, after the full bobbin F is hung on the bobbin hanger 94, the transport rail 90 rises and returns to the original position.
Next, the crane 89 is moved to a position where the second transfer rail 91 on which the empty bobbin E is suspended on the bobbin hanger 94 is opposed to the tip of the replacement arm 82, and the elevating device 93 is operated to operate the second crane 89.
Is lowered. Then, after the empty bobbin E is transferred to the replacement arm 82, the second transport rail 91 rises and returns to the original position. Next, the refilling machine 95 moves to the work position, places the empty bobbin E on the bobbin rail 87, and then returns to the standby position to complete the refilling work.

[0007]

[Problems to be Solved by the Invention] JP-B-63-6141
In the device described in Japanese Patent Application Publication No. 4 (1994), the upper surface of the tube replacement head 85 is covered with a cover and can be used as a stepping plate except during tube replacement work, and the upper surface of the tube replacement head 85 can be used as a work passage. However, besides the time of the pipe change operation, while the roving machine 81 approaches the full tube and carries the empty bobbin E to the position corresponding to the bobbin wheel by the peg conveyor 86, and the peg conveyor 8
Until the unloading of the full bobbin F doffed on 6 is completed, the refilling head 85 has moved up to a position where the empty bobbin E or the full bobbin F can pass below. Therefore,
During that time, there is a problem that the pipe replacement head 85 hinders the operation of repairing a mistake in automatic winding of roving when the roving machine 81 is restarted and the work of repairing roving breakage. The time required to carry in the empty bobbin E and carry out the full bobbin F is much longer than the time required for the pipe replacement operation.

[0008] In addition, by performing reciprocating operation of the peg conveyor 86 in conjunction with the operation of the exchanging arm back and forth movement mechanism 83 and the evacuation arm raising and lowering mechanism 84 during the pipe changing operation, the peg conveyor 8 can be moved.
The empty bobbin E or the full bobbin F attached to the peg 86a of No. 6 does not interfere with the full bobbin F or the empty bobbin E suspended from the replacement arm 82. For example, FIG.
As shown in (a), the pipe replacement arm 82 is suspended from the full bobbin F on the bobbin rail 87, and then the pipe replacement arm longitudinal movement mechanism 83
Is activated and the full bobbin F suspended from the pipe replacement arm 82 in the rear row
Is moved to a position corresponding to the center of the peg conveyor 86. In this state, the peg conveyor 86 is moved to the left in FIG. 32 (b) by one pitch of the peg 86a, and then the replacement arm back-and-forth movement mechanism 83 is actuated again, so that each full bobbin F is moved to the peg conveyor 86. The state shown in FIG. 33 is arranged at a position facing the pea 86a. Also, when the empty bobbin E on the peg conveyor 86 is placed on the bobbin rail 87, the pipe replacement arm longitudinal movement mechanism 83 is intermittently operated and the peg conveyor 86 is driven.

However, when the replacement arm 82 places the full bobbin F on the peg 86a of the peg conveyor 86, the full bobbin F may be placed in an inclined state. In that case,
Since the gap between the empty bobbin E and the full bobbin F is small, the empty bobbin E comes into contact with the full bobbin F when suspending the empty bobbin E on the replacement arm 82 and moving it on the bobbin rail 87,
There is a problem that the empty bobbin E falls off the replacement arm 82 and causes a trouble.

On the other hand, in the apparatus disclosed in Japanese Patent Application Laid-Open No. 58-119562, the exchanging machine 95 is arranged at a standby position except during the exchanging operation, and a work passage is provided between the roving machine 81 and the exchanging machine 95. Secured. However, there is a problem that it is necessary to secure an extra space as a work passage in addition to the arrangement space for the refilling machine. In addition, it is necessary to provide independent transfer rails 90 and 91 for transferring the full bobbin F and the empty bobbin E, and there is a problem that the apparatus becomes large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object the purpose of operating a roving machine even when a space for a work passage is not provided between the re-pitching device and the roving machine. It is always possible to work on the front side of the roving machine stand, and it is possible to perform the work of repairing the automatic winding of the roving yarn when the machine is restarted and the repair work of the roving yarn breakage without any trouble. It is another object of the present invention to provide a roving machine tube changing method and a tube changing device that do not need to provide independent transfer rails for transferring an empty bobbin E.

[0012]

According to a first aspect of the present invention, there is provided a pipe replacement method, wherein the same pitch as the bobbin wheel pitch of the roving machine is provided on the front side of the roving machine equipped with an upper supporting flyer. A roving machine provided with a pipe changing arm for moving the pipe changing arm forward and backward with respect to the roving machine, and a pipe changing arm elevating means for raising and lowering the pipe changing arm; On the rails arranged along the roving machine above
A bobbin carrier provided with a bobbin hanger in which at least one roving bobbin is hung at the same pitch as the bobbin wheel pitch is made to stand by. Temporarily transfer on a peg arranged at a predetermined position opposite to the movement range of the arm, and then move the full bobbin on the bobbin rail to the transfer arm and move it to the front side of the roving machine At the same time, the empty bobbin was suspended on a bobbin hanger from which the empty bobbin was removed, and then the empty bobbin temporarily transferred onto the above-mentioned peg was mounted on a bobbin wheel on a bobbin rail.

[0013] According to a second aspect of the present invention, in the roving machine, a rotatable arm provided at the same pitch as the bobbin wheel pitch of the roving machine is provided in front of the roving machine equipped with an upper supporting flyer. A replacement arm forward and backward moving means for moving forward and backward,
A pipe replacement device having a pipe replacement arm elevating means for raising and lowering the pipe replacement arm is provided, and an empty bobbin for at least one roving machine is provided on a rail provided along the roving machine above the roving machine. A bobbin carrier with a bobbin hanger suspended at the same pitch as the bobbin wheel pitch is made to stand by, and a full bobbin on the bobbin rail is suspended by the operation of the tube changing device and moved to the front side of the roving machine while being hung on the tube changing arm. On the bobbin rail from which the bobbin rail is removed, the empty bobbin on the bobbin transporter is removed from the bobbin hanger, and the bobbin rail is removed from the bobbin rail. The bobbin wheel was mounted on the bobbin wheel, and then the full bobbin temporarily transferred on the above-mentioned peg was suspended on the bobbin hanger from which the empty bobbin was removed.

According to a third aspect of the present invention, there is provided a tube changing device which is provided along a roving machine above a roving machine equipped with an upper support type flyer, and which is movable along the rail. A bobbin carrier in which at least the same number of bobbin hangers as the bobbin wheels of the roving machine are suspended at the same pitch as the bobbin wheel pitch, and a bobbin wheel is disposed at the front side of the roving machine at the same pitch as the bobbin wheel pitch of the roving machine. A large number of possible replacement arms, forward and backward movement means for moving the replacement arm relative to the roving machine, lifting means for raising and lowering the replacement arm together with the replacement arm forward and backward movement means, The bobbin wheel is arranged at the same pitch as the bobbin wheel pitch at a predetermined position facing the moving range of the replacement arm, and temporarily removes the empty bobbin removed from the carrier or the full bobbin removed from the bobbin rail. And a peg for location.

[0015]

According to the first aspect of the present invention, the bobbin carrier stands by above the roving machine before the start of the pipe replacement operation, and the bobbin hanger mounted on the bobbin carrier has at least one empty bobbin for the roving machine. Are suspended at the same pitch as the bobbin wheel pitch. In this state, the pipe replacement device is operated, and the empty bobbin on the bobbin carrier is removed from the bobbin hanger and suspended on the pipe replacement arm. Then, the replacement arm is moved, and the empty bobbin is temporarily transferred to a peg provided at a predetermined position facing the moving range of the replacement arm. Next, the transfer arm is moved, and the full bobbin on the bobbin rail is suspended by the transfer arm and transferred to the front side of the roving machine. Thereafter, the empty bobbin is suspended on the removed bobbin hanger. Next, the empty bobbin temporarily transferred on the above-mentioned peg is again suspended on the replacement arm and transferred onto the bobbin rail, and then mounted on the bobbin wheel.

According to the second aspect of the present invention, the bobbin carrier stands by above the roving machine before the start of the pipe change operation, and the bobbin hanger mounted on the bobbin carrier has at least one empty bobbin for the roving machine. Are suspended at the same pitch as the bobbin wheel pitch. In this state, the pipe replacement device is operated, and the full bobbin on the bobbin rail is suspended from the pipe replacement arm. Then, after the replacement arm is moved and the full bobbin is transferred to the front side of the roving machine, the full bobbin is temporarily transferred to a peg disposed at a predetermined position facing the moving range of the replacement arm. Will be posted. Next, the replacement arm is moved, and the empty bobbin on the bobbin carrier is removed from the bobbin hanger and suspended on the replacement arm. Then, after the replacement arm is moved and the empty bobbin is transferred onto the bobbin rail, it is mounted on the bobbin wheel from which the full bobbin has been removed. Next, after the full bobbin temporarily transferred on the above-mentioned peg is suspended on the replacement arm, the empty bobbin is suspended on the removed bobbin hanger.

[0017]

【Example】

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1, 7 and the like, bobbin wheels 4 are arranged in two rows in front and rear directions on a bobbin rail 3 of a roving machine 2 equipped with an upper support type flyer 1. A single support rail 5 is arranged above the front side of the roving machine 2 in parallel with the longitudinal direction of the roving machine 2. The support rail 5 is provided with a bobbin carrier 7 having the same number of bobbin hangers 6 as the bobbin wheels 4 of one roving machine 2 so as to run freely. The support rail 5 is connected to a transport rail (not shown) that guides the bobbin transport 7 to a spinning process or the like. The bobbin transporter 7 is formed by suspending a single bobbin hanger 6 on the lower surface and connecting a support member 9 on which a roller 8 is rotatably attached to an outer surface by a link 10. The bobbin carrier 7 is a support rail 5
The bobbin hangers 6 are arranged in a staggered manner at the same pitch P as the bobbin wheels 4 on the bobbin rails 3 when the bobbin hangers 6 are introduced into the inside.

A tube changing device 11 is provided in front of the roving machine 2 so as to face the roving machine 2. The tube changing head 12 of the tube changing device 11 is supported by an elevating device 13 as a tube changing arm elevating means while extending along the bobbin rail 3. As shown in FIG. 2, the lifting device 13 includes a number of pantograph mechanisms 14.
It has. As shown in FIGS. 2 to 5, each pantograph mechanism 14 has four links 15a, 16a,
17a, 18a and links 15b, 16b, 17b, 1
8b is provided as a pair of front and rear link mechanisms.

As shown in FIG. 4 and FIG.
A pair of drive rods 19 are provided between the link mechanisms at the lower part of
a and 19b are disposed so as to be able to reciprocate in parallel with the longitudinal direction of the roving machine 2. One end of the tube replacement device 11 is provided with a ball screw 2 at a position corresponding to the center of the drive rods 19a and 19b.
0 extends along the longitudinal direction of the roving machine 2
It is disposed so as to be rotatable via the. Drive rod 19
One end of each of a and 19b is connected to a ball nut 22 screwed to a ball screw 20 via a connecting member 23 so as to be integrally movable. The ball screw 20 has a gear box 24
Motor 25 via a gear train (not shown) housed therein.
Is transmitted. Ball screw 2
A bellows 26 that expands and contracts with the movement of the ball nut 22 is provided on the outer periphery of the zero.

A bracket 27 is fixed to the drive rods 19a and 19b so as to be integrally movable at predetermined intervals, and the first ends of the first links 15a and 15b are
Is rotatably connected via a. First link 15
A second link 16a, 16b is rotatably connected to a center of the a, 15b via a shaft 29 at the center. The first ends of the second links 16a and 16b are connected to a support bracket 30 fixedly arranged at the same interval as the bracket 27 in the vicinity of the drive rods 19a and 19b.
Is rotatably connected via a. First link 15
a, 15b have third links 17a, 17b
Are rotatably connected via a shaft 32. The second ends of the third links 17a and 17b are rotatable about a shaft 34 slidably provided along an elongated hole (not shown) formed in the beam 33 constituting the tube replacement head 12. Are linked. A fourth link 18a, 18b is provided at the center of the third link 17a, 17b at the center thereof.
5 so as to be rotatable. Second link 1
The second ends of 6a, 16b are connected to fourth links 18a, 18b.
Is rotatably connected via a shaft 36 to a first end of the
The second ends of the links 18a and 18b are rotatably connected to predetermined positions of the beam 33 via a shaft 37. That is, the pantograph mechanism 14 expands and contracts with the reciprocation of the drive rods 19a and 19b, and the tube replacement head 12 is moved up and down in parallel.

As shown in FIG. 3 and FIG.
A first guide rail 38 is fixed at a predetermined interval to the upper surface of the beam 33 at right angles to the beam 33. A first slider 39 is slidably supported on the first guide rail 38, and a second guide rail 40 is provided on the first slider 39.
Are fixed in parallel with the first guide rail 38. A second slider 41 is slidably supported on the second guide rail 40, and a doffing beam 42 is fixed on the second slider 41. Further, a plurality of support portions 43 (only one is shown) are provided at predetermined intervals on the rear side (left side in FIG. 3) of the beam 33. A first Scott-Russell linear motion mechanism 44 as a pipe replacement arm longitudinal movement means is provided on the support portion 43.
Is slidably supported in parallel with the beam 33. A power unit (not shown) in which a drive shaft is reciprocated by a ball screw mechanism in accordance with forward and reverse rotations of a motor is disposed at one end of the beam 33, and one end of a drive rod 45 is connected to the drive shaft. .

As shown in FIG. 8, a plurality of movable brackets 46 (only one is shown) are attached to the drive rod 45 at predetermined intervals so as to be integrally movable with the drive rod 45. A first end of a link 47 is attached to the movable bracket 46 by a pin 48.
And a second end is rotatably connected to the doffing beam 42 via a pin 49. A first end of a link 50 having a half length of the link 47 is connected to the center of each link 47 by a pin, and a second end of the link 50 is rotated by a pin 51 protruding from the support portion 43. It is connected as possible. That is, with the reciprocation of the drive rod 45, the doffing beam 42 is horizontally translated between the standby position shown in FIG. 3 and the most advanced position shown in FIGS.

As shown in FIG. 7, the doffing beam 4
2, a number of forks 52a and 52b as pipe replacement arms are arranged at the same pitch P as the bobbin wheel pitch. In order to be able to hold the bobbin, concave portions (not shown) into which the flange portions of the empty bobbin E or the full bobbin F are fitted are formed inside the upper surfaces of the forks 52a and 52b. A fixed fork 52 a disposed at a position facing the bobbin wheel 4 located on the front side of the roving machine 2 is fixed to the front surface of the doffing beam 42. A movable fork 52b disposed at a position facing the bobbin wheel 4 located on the rear side of the roving machine 2 is disposed so as to be movable in a direction orthogonal to the longitudinal direction of the doffing beam 42.

Each movable fork 52b has a slide rod 5
The slide rod 53 is slidably supported in a state in which the slide rod 53 penetrates a guide block 54 projecting from the front surface of the doffing beam 42. A support bar 55 extends on the doffing beam 42 over the entire length of the doffing beam 42, and a second Scott-Russell linear motion mechanism 56 as a pipe replacement arm back and forth moving means.
Are arranged so as to be movable in the front-rear direction (up and down in FIGS. 7 and 8). That is, the doffing beam 42
A support bracket 57 is fixed to the rear side at a predetermined interval, and a drive rod 58 is supported by the support bracket 57 so as to be slidable in parallel with the doffing beam 42 and along the longitudinal direction thereof. A movable bracket 59 is attached to the drive rod 58 at predetermined intervals so as to be integrally movable. A first end of a link 60 is rotatably connected to the movable bracket 59 via a pin, and a second end is rotatably connected to the support bar 55 via a pin. A first end of a link 61 having a half length of the link 60 is connected to a center of each link 60 by a pin, and a second end of the link 61 is rotatably connected to a support bracket 57 via a pin. Have been. One end of the drive rod 58 is connected to a drive shaft of a power unit (not shown) provided at one end of the doffing beam 42. With the reciprocation of the drive rod 58 by the operation of the power unit, the support bar 55 is horizontally translated. In addition, a cover 62 that covers the rear side and the upper side of the tube replacement head 12 is fixed to the support portion 43 by screws 63. The front end of the cover 62 extends to a position corresponding to the front end of the first guide rail 38.

The support beam 6 is provided at the lower part on the front side of the tube replacement device 11.
4 is arranged in parallel with the longitudinal direction of the roving machine 2. The same number of pegs 65 as the bobbin wheel 4 are provided on the support beam 64.
Are fixed so as to have the same pitch P as the bobbin wheel pitch, and the interval between the front and rear rows is slightly smaller than the arrangement width of the bobbin hanger 6 of the bobbin transporter 7 waiting on the support rail 5.

As shown in FIG. 8, the length of the slide rod 53 is such that the forks 52a and 52b are arranged on the bobbin wheel 4 when the support bar 55 is moved to the most advanced position.
In a state corresponding to the arrangement. Also, as shown in FIG. 7, when the support bar 55 is moved to the rearmost position, the arrangement of the forks 52a and 52b is set to correspond to the arrangement of the pegs 65.

Next, the operation of the device configured as described above will be described. During operation of the roving machine 2, the refilling head 12 is arranged at the standby position, which is the lowest position, and the doffing beam 4
2 are arranged at the rearmost positions, respectively, so that the work in front of the roving machine 2 such as the work for repairing broken rovings and the work for automatically winding the roving yarn when the machine is restarted is maintained. Is done.

During the operation of the roving machine 2, the bobbin transporter 7 on which the empty bobbin E is suspended is carried into the support rail 5 as shown in FIG. 9, and the empty bobbin E faces the forks 52a and 52b. Placed in the position. When the roving becomes full, spinning and winding of the roving are stopped, and as shown in FIG.
The upper surface of the flange portion of the full bobbin F is the guide leg 1a of the flyer 1.
The bobbin rail 3 is lowered to a position slightly above the lower end of the roving, and the roving is automatically cut.

Next, the motor 25 is driven to rotate forward, the ball screw 20 is rotated forward, and the drive rods 19a and 19b move forward together with the ball nut 22 (to the left in FIGS. 4 and 5). Then, the pantograph mechanism 14 is extended, and the refill head 12 moves up to a position corresponding to the empty bobbin E suspended by the bobbin transporter 7 with the forks 52a, 52b.
Next, the second Scott-Russell linear motion mechanism 56 is driven, and the movable fork 52b is driven forward to move each fork 5
2a and 52b are arranged in a state corresponding to the empty bobbin E. Further, the first Scott-Russell linear motion mechanism 44 is driven to move the drive rod 45 forward, and each fork 52
The doffing beam 42 moves forward to a position where a and 52b correspond to the lower surface of the flange portion of the empty bobbin E. Next, the pipe replacement head 12 is slightly raised to release the hung state of the empty bobbin E by the bobbin hanger, and each empty bobbin E is
It hangs on 2a and 52b, and it will be in the state of FIG.

Next, the motor 25 is driven to rotate in the reverse direction, the ball screw 20 is rotated in the reverse direction, and the drive rods 19a and 19b move back together with the ball nut 22. Then, the pantograph mechanism 14 contracts, and the pipe replacement head 12 moves down to a position where the empty bobbin E suspended from the forks 52a, 52b is mounted on the peg 65. The Scott-Russell linear motion mechanisms 44 and 56 are driven during the lowering of the refill head 12, the arrangement of the forks 52a and 52b is changed to a state corresponding to the arrangement of the pegs 65, and the empty bobbin E is Doffing beam 42 up to the position facing 65
Slightly retreats. And the pantograph mechanism 14
When the contraction of the empty bobbin E is completed, each empty bobbin E is mounted on the peg 65, and the engagement between the replacement forks 52a and 52b and the empty bobbin E is released.

Next, the first Scott-Russell linear motion mechanism 44 is driven, and when the forks 52a, 52b are raised, the doffing beam 42 is slightly retracted to a position where it cannot be engaged with the empty bobbin E. Next, each fork 52a,
The pipe replacement head 12 rises to a position where 52b corresponds to the lower surface of the flange portion of the full bobbin F on the bobbin rail 3, and the state shown in FIG. 11 is obtained. From this state, the first Scott-Russell linear motion mechanism 44 is driven, and the doffing beam 42 is arranged at the most advanced position. When the doffing beam 42 is located at the most advanced position, the fixed fork 52a is
The state corresponds to the lower surface of the flange portion of the upper full bobbin F on the upper side. In addition, the second Scott-Russell linear motion mechanism 56 is also driven to advance the support bar 55, and the movable fork 52b is arranged at a position corresponding to the lower surface of the flange portion of the rear full bobbin F on the bobbin rail 3 as shown in FIG. The state shown in FIG. In this state, the bobbin rail 3 is further lowered, and the full bobbin F is suspended by the forks 52a and 52b, and the bobbin wheel 4 is separated from the full bobbin F, as shown in FIG.

Next, the second Scott-Russell linear motion mechanism 56 is driven, and the support bar 55 is retracted.
The arrangement of 2a and 52b corresponds to the arrangement of the bobbin hanger 6 hung on the bobbin carrier 7. Further, the first Scott-Russell linear motion mechanism 44 is driven, the doffing beam 42 is retracted, and the full bobbin F is moved to the bobbin rail 3.
13 is taken out to the front side of FIG. Next, the refilling head 12 is moved up and the first Scott-Russell linear motion mechanism 44 is driven. The doffing beam 42 is moved to a position where each of the forks 52a, 52b faces the bobbin hanger 6 suspended on the bobbin carrier 7.
Is retracted, the pipe replacement head 12 is arranged at the highest position, and the full bobbin F is suspended from the bobbin hanger 6 as shown in FIG.

Next, the first Scott-Russell linear motion mechanism 44 is driven, and when the forks 52a and 52b are lowered, the doffing beam 42 is moved backward to a position where it cannot be engaged with the full bobbin F. Next, each fork 52a, 52b
The pipe replacement head 12 is lowered to a position corresponding to the lower surface of the flange portion of the empty bobbin E on the peg 65. Thereafter, the first Scott Russell linear motion mechanism 44 is driven, and each fork 5
2a and 52b are arranged at positions corresponding to the lower surface of the flange of the empty bobbin E. In this state, after the replacement head 12 is lifted and the empty bobbin E is hung on each of the forks 52a and 52b,
The doffing beam 42 and the support bar 55 are arranged at the most advanced position, and the empty bobbin E is in a state shown in FIG.

Next, after the bobbin rail 3 is raised and the bobbin wheel 4 is fitted to the bottom of the empty bobbin E, the empty bobbin E
The bobbin rail 3 stops when the flange of the cylinder rises to a position separated from the forks 52a, 52b. Next, both Scott-Russell linear motion mechanisms 44 and 56 are driven, and the state shown in FIG. 16 is reached in which the doffing beam 42 and the support bar 55 are arranged at the rearmost positions. Thereafter, as shown in FIG. 17, the pipe replacement head 12 is lowered to the standby position, the bobbin rail 3 is raised to the roving take-up position, and then the normal spinning operation is started.

As described above, the refilling head 12 is located at the standby position except during the refilling operation, and the empty bobbin is temporarily placed on the peg 65 disposed in front of the roving machine 2 during the refilling operation. E is placed. Therefore, after completion of the pipe change, the operation of the roving machine 2 is started immediately, and even if it becomes necessary to carry out a repair operation for the automatic winding error of the roving at the restart and a repair operation for the roving breakage, there is no hindrance to any operation. Never come.

(Embodiment 2) Next, a second embodiment will be described with reference to FIGS. In this embodiment, the pegs 65 are arranged in one row on a bracket 66 fixed to the front side of the flyer rail 2a of the roving machine 2;
Are disposed above the flyer rail 2a, and the structure of the tube replacement head 12 is different from that of the above embodiment.

When the support bar 55 is located at the most retracted position, the tube replacement head 12 is arranged such that the fixed fork 52a and the movable fork 52b are arranged in a straight line, and the support bar 55 is located at the most advanced position. The fixed fork 52a and the movable fork 52b are arranged so as to correspond to the front bobbin wheel 4 and the rear bobbin wheel 4, respectively. When the support bar 55 is disposed at an intermediate position between the most retracted position and the most advanced position, the arrangement of the forks 52a and 52b is different from the arrangement of the bobbin hanger 6 suspended on the carrier 7 on the support rail 5. It will be in the corresponding state.

Further, since the peg 65 for temporarily placing the empty bobbin E is disposed in front of the flyer rail 2a, the full bobbin F and the empty bobbin E are removed when the full bobbin F is taken out from the bobbin rail 3. Therefore, the entire pipe replacement device 11 is disposed at a position close to the roving machine 2 side. As a result, the guide rail for guiding the back and forth movement of the doffing beam 42 does not need to be a two-stage type, unlike the above embodiment. That is, the guide rail 67 is fixed to the upper surface of the beam 33 at a predetermined interval in a state perpendicular to the beam 33, and the doffing beam 42 is fixed on the slider 68 slidably supported by the guide rail 67. The doffing beam 42 is moved back and forth by a first Scott-Russell linear motion mechanism 44 configured in the same manner as in the above embodiment.

An engagement protrusion 62a is formed on the lower surface of the front end of the cover 62 of the tube replacement head 12, and when the tube replacement head 12 is located at the standby position, the engagement protrusion 62a is attached to the tube replacement device 1.
It comes into contact with a support portion 69a protruding from one base frame 69.

At the time of the pipe change operation, the pipe change head 12 is moved upward from the state shown in FIG. 18, and each of the forks 52a and 52b is brought into a state corresponding to the empty bobbin E suspended from the bobbin carrier 7. Next, both Scott Russell linear motion mechanisms 44, 5
6 is driven, and the forks 52a and 52b
Is disposed at a position corresponding to the lower surface of the flange. Then, the pipe replacement head 12 is slightly raised, and the empty bobbin E is brought into a state shown in FIG. 21 in which the empty bobbin E is suspended by the forks 52a and 52b. Next, both Scott Russell linear motion mechanisms 44 and 56 are driven, and the forks 52a and 52b are arranged in a straight line and at a position facing the peg 65. Then, the tube replacement head 12 is moved down, and the empty bobbin E is mounted on the peg 65 as shown in FIG.

Next, the first Scott-Russell linear motion mechanism 44 is driven, and after the doffing beam 42 is retracted to a position where the forks 52a, 52b do not interfere with the bracket 66, the forks 52a, 52b are moved on the bobbin rail 3. The pipe replacement head 12 is moved down to a position facing the lower surface of the flange portion of the full bobbin F. From this state, both Scott-Russell linear motion mechanisms 44 and 56 are driven, and the forks 52a and 52b are moved and arranged to positions where they can be engaged with the lower surface of the flange portion of the full bobbin F. Then, the bobbin rail 3 is moved down, and the full bobbins F
Is suspended as shown in FIG. Next, both Scott Russell linear motion mechanisms 44 and 56 are driven, the doffing beam 42 is retracted, and each of the forks 52a,
FIG. 24 shows a state 52b corresponding to the bobbin hanger 6 suspended on the bobbin carrier 7.

Next, the refilling head 12 is moved up, and the doffing beam 42 is moved so that the full bobbin F does not come into contact with the empty bobbin E. The full bobbin F is suspended from the bobbin hanger 6 as shown in FIG. Is given. Next, the second Scott-Russell linear motion mechanism 56 is driven, and the forks 52a and 52b are arranged on a straight line. Then, the replacement head 12 is moved down and the doffing beam 42 is moved, and as shown in FIG.
2a and 52b are arranged at positions where the empty bobbin E can be suspended. Next, the forks 52a and 52b are arranged at positions corresponding to the bobbin rails 3 shown in FIG. From this state, the forks 52a, 52b
Is moved to the most advanced position, and the empty bobbin E is brought into a state shown in FIG.

Next, the bobbin rail 3 is moved up, the empty bobbin E is mounted on the bobbin wheel 4, and the engagement between the forks 52a, 52b and the empty bobbin E is released. Then, the doffing beam 42 and each fork 5
2a and 52b are arranged at the rearmost position, and the tube replacement head 12 is arranged at the standby position. Then, after the bobbin rail 3 is raised to the roving winding position, normal spinning operation is started, and the state shown in FIG. 29 is obtained.

In this embodiment, in addition to the same effect as in the previous embodiment, there is no need to provide the peg 65 on the side of the tube changing device 11, and the tube changing device 11 is moved closer to the roving machine 2 by that much. The width of the tube replacement head 12 can be reduced.

(Embodiment 3) Next, a third embodiment will be described with reference to FIG. In this embodiment, the point that the support rail 5 is supported so as to be able to move up and down through a chain 70 that is fed or wound by a winding device (not shown), and that the pipe replacement head 12 takes out the full bobbin F from the bobbin rail 3. This embodiment is different from the above embodiments in that it does not move upward from the work position. That is, the elevating device 13 includes the tube replacement head 1.
Since there is no need to move the roller 2 to a position corresponding to the bobbin transporter 7 waiting above the roving machine 2, a link mechanism having the same configuration as the conventional Scott Russell linear motion mechanism can be employed.

At the time of pipe replacement work, the bobbin transporter 7 is arranged at the lowered position together with the support rail 5 as shown in FIG. Then, after the empty bobbin E suspended from the bobbin transporting body 7 arranged at the position is placed on the peg 65 by the operation of the tube switching device 11, the full bobbin F is taken out from the bobbin rail 3. The empty bobbin E is suspended on the bobbin hanger 6 after being removed. Thereafter, the chain 70 is wound up and the support rail 5 is moved to a standby position above the roving machine 2. Next, after the empty bobbin E mounted on the peg 65 is mounted on the bobbin wheel 4 of the bobbin rail 3,
The replacement head 12 is arranged at the standby position. Also in this embodiment, since there is no empty bobbin E or full bobbin F between the tube changing device 11 and the bobbin rail 3 except during the tube changing operation, the operation in front of the roving machine 2 may be hindered. There is no.

The present invention is not limited to the above embodiment. For example, in each of the above embodiments, the empty bobbin E is removed from the bobbin hanger 6 of the bobbin carrier 7 and the peg 6
5, the bobbin F was doffed from the bobbin rail 3. First, the bobbin F was doffed from the bobbin rail 3 and placed on the peg 65. The bobbin transporter 7 may be detached from the bobbin hanger 6 and mounted on the bobbin wheel 4, and then the full bobbin F may be hung on the bobbin hanger 6 from which the empty bobbin E has been removed. In this case, the pegs 65 need to be arranged in a staggered manner as in the first or third embodiment so that the full bobbins F do not interfere with each other.

In the first and third embodiments, the pegs 65 on which the empty bobbins E are placed may be arranged in one line, and the forks 52a and 52b may be arranged in one line. Further, the arrangement position of the pegs 65 is not limited to the position in the above-described embodiment, and may be provided above the flyer rail 2a.

[0049]

As described in detail above, according to the present invention, the roving machine is always operated when the roving machine is operated, even if a special space is not provided for the work passage between the pipe changing device and the roving machine. Work can be performed on the front side of the table, and it is possible to perform work for repairing mistakes in automatic winding of roving yarn at the time of restart of the machine stand, repair work for roving breakage, and the like without any trouble. Full bobbin F and empty bobbin E
It is not necessary to provide independent transfer rails for each transfer, and the cost for manufacturing the apparatus can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a first embodiment of the present invention.

FIG. 2 is a schematic front view showing a relationship between the tube changing device and the roving machine.

FIG. 3 is a partially omitted side sectional view of the tube switching device.

FIG. 4A is a partial front view showing a driving unit of the tube replacement head elevating device, and FIG. 4B is a partial front view showing a supported state of a link.

FIG. 5 is a partially broken partial plan view showing a drive unit of the tube replacement head elevating device.

FIG. 6 is a partially omitted side sectional view showing a state in which a full bobbin is suspended by a tube replacement device.

FIG. 7 is a partially broken partial plan view showing a fork supporting state and a driving mechanism.

FIG. 8 is a partially broken partial plan view showing a driving mechanism of the doffing beam.

FIG. 9 is a schematic side view showing a state in which an empty bobbin is carried into a tube replacement preparation position.

FIG. 10 is a schematic side view of a state in which the tube replacement head is arranged at an empty bobbin hanging position.

FIG. 11 is a schematic side view showing a state where an empty bobbin is placed on a peg.

FIG. 12 is a schematic side view of a state in which a full bobbin is hung on a fork.

FIG. 13 is a schematic side view of a state where a full bobbin is taken out.

FIG. 14 is a schematic side view of a state in which a full bobbin is suspended from a carrier.

FIG. 15 is a schematic side view of a state where an empty bobbin is arranged on a bobbin rail.

FIG. 16 is a schematic side view showing a state where an empty bobbin is mounted on a bobbin wheel.

FIG. 17 is a schematic side view of a state where the tube replacement head has returned to the standby position.

FIG. 18 is a schematic side view of the second embodiment.

FIG. 19 is a partially omitted side sectional view of the tube switching device.

FIG. 20 is a partially omitted side sectional view showing a state in which a full bobbin is suspended by a tube replacement device.

FIG. 21 is a schematic side view showing a state in which the tube replacement head is arranged at an empty bobbin hanging position.

FIG. 22 is a schematic side view of a state where an empty bobbin is placed on a peg.

FIG. 23 is a schematic side view of a state in which a full bobbin is hung on a fork.

FIG. 24 is a schematic side view of a state where a full bobbin is taken out.

FIG. 25 is a schematic side view of a state in which a full bobbin is suspended from a carrier.

FIG. 26 is a side view showing a state in which an empty bobbin on a peg is suspended by a tube replacement device.

FIG. 27 is a schematic side view of a state in which the tube replacement head with an empty bobbin suspended has been lowered.

FIG. 28 is a schematic side view showing a state where an empty bobbin is arranged on a bobbin rail.

FIG. 29 is a schematic side view of a state where the tube replacement head has returned to the standby position.

FIG. 30 is a schematic side view of the third embodiment.

FIG. 31 is a schematic side view of a conventional device.

FIG. 32 is a schematic plan view for explaining an operation at the time of a pipe replacement operation.

FIG. 33 is a schematic plan view for explaining an operation at the time of pipe replacement work.

FIG. 34 is a schematic side view of another conventional apparatus.

[Explanation of symbols]

1 ... flyer, 2 ... roving machine, 2a ... flyer rail, 3
... bobbin rails, 4 ... bobbin wheels, 5 ... support rails, 6 ... bobbin hangers, 7 ... bobbin transporters, 11 ... tube replacement heads, 13 ... lifting devices as lifting / lowering means, 14 ... pantograph mechanisms, Reference numeral 42 denotes a doffing beam, 44 denotes a first Scott Russell linear motion mechanism as a replacement arm longitudinal movement means, 52a a fixed fork as a replacement arm, 52b similarly a movable fork, 56 ... The second Scott Russell linear motion mechanism, 65 ... peg, E ... empty bobbin, F ... full bobbin.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-119562 (JP, A) JP-A-63-288228 (JP, A) JP-A-62-57945 (JP, A) JP-A-61-1986 119730 (JP, A) JP-B 63-61414 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) D01H 9/04

Claims (3)

(57) [Claims] 1. A forward / backward movement of a pipe changing arm provided at the front side of a roving machine equipped with an upper support type flyer and arranged at the same pitch as the bobbin wheel pitch of the roving machine. Means and a pipe replacement device provided with a pipe replacement arm elevating means for raising and lowering the pipe replacement arm, and at least a roving machine 1 is provided on a rail provided along the roving machine above the roving machine.
A bobbin transporter provided with a bobbin hanger in which empty bobbins of the same number are suspended at the same pitch as the bobbin wheel pitch is put on standby. The bobbin on the bobbin rail is temporarily suspended on a pipe transfer arm and moved to the front side of the roving machine. A pipe replacement method for a roving machine in which an empty bobbin temporarily suspended on the bobbin hanger and then temporarily transferred onto the above-mentioned peg is mounted on a bobbin wheel on a bobbin rail. 2. A forward / backward movement of a pipe changing arm disposed at the front side of a roving machine equipped with an upper-supporting flyer at the same pitch as the bobbin wheel pitch of the roving machine. Means and a pipe replacement device provided with a pipe replacement arm elevating means for raising and lowering the pipe replacement arm, and at least a roving machine 1 is provided on a rail provided along the roving machine above the roving machine.
A bobbin transporter equipped with a bobbin hanger in which empty bobbins of the same number are suspended at the same pitch as the bobbin wheel pitch is put on standby. At the same time as the bobbin transporter, remove the empty bobbin on the bobbin hanger from the bobbin hanger, and remove the full bobbin. A pipe replacement method for a roving machine in which a bobbin wheel mounted on a bobbin rail removed and then a full bobbin temporarily transferred to the above-mentioned peg is suspended on a bobbin hanger from which an empty bobbin has been removed. 3. A rail arranged along the roving machine above the roving machine equipped with a top-supported flyer, and at least as many bobbin wheels of the roving machine as are movable along the rail. A bobbin transporter in which the bobbin hanger is suspended at the same pitch as the bobbin wheel pitch, a number of replacement arms that are arranged at the same pitch as the bobbin wheel pitch of the roving machine on the front side of the roving machine and are capable of holding the bobbin, Forward and backward moving means for moving the refill arm forward and backward with respect to the roving machine; elevating means for raising and lowering the refill arm together with the forward and backward moving means for the refill arm; At the same pitch as the bobbin wheel pitch, and a bog for temporarily placing an empty bobbin removed from the carrier or a full bobbin removed from the bobbin rail. Kankawa in Rover device.