JPS61201030A - Full bobbin doffer and conveyor - Google Patents

Abstract

PURPOSE:The full bobbins in the front row of the roving frame is set to the creels for the front row of the spinning frame, while the full bobbins in the back row are set to the back row, to enable the thickness difference between spun yarns to be reduced by adjustment of draft. CONSTITUTION:Spinning frames 43 in the group G are classified into those for the front row 43F and those for the back row 43B of the roving frame 1. Rail switchings are used to feed bobbins to the rails for spinning frames 43F and 43B so that bobbins correspond to their original rows in the roving frame.

Description

[Detailed Description of the Invention] Industrial Application Field This invention is for doffing a full bobbin wound by a roving frame in which flyers are arranged in a staggered manner in the front and rear rows and conveying it to the spinning creel of a spinning frame. This invention relates to a method for doffing and conveying a full bobbin.

2. Description of the Related Art Conventionally, as a device for doffing full bobbins of a roving frame and conveying them to a spinning frame, two rows of full bobbins in front and rear of the roving frame were used, as disclosed in Japanese Patent Application Laid-Open No. 58-41919. Doff the bobbins onto the bobbin holder of the conveyor, attach the full bobbins of the front and rear rows attached to the bobbin holders to one bobbin transporter, move the bobbin transporter to the spinning machine, and doff the front and rear rows of full bobbins. It is known that a fully loaded bobbin is attached to the spinning creel of the spinning machine.

Problems to be Solved by the Invention Generally, in a roving machine in which flyers are arranged in two rows, front and back, in a staggered manner, the braided thread wound by the flyer in the front row and the roving thread wound by the flyer in the rear row are separated. The thickness of the roving yarns in the front and rear rows differs depending on the fiber passage path, etc., and the roving yarns in the front row are usually thinner than the braided yarns in the rear row, and the difference in thickness is more than 1% in actual operation. I've come to understand something. On the other hand, in the spinning process using spinning machines, high quality yarn has become increasingly desirable in recent years, and the goal has become to suppress the variation in the thickness of the finished yarn to 1% or less. There is. Considering the above-mentioned conventional full bobbin doffing and conveying device against this background, in that conventional device, full bobbins in the front and rear rows of the roving frame are mounted on the same bobbin conveying body, and the same spinning machine Since the full bobbins in the front and rear rows are loaded onto the same spinning creel, unevenness in the thickness of the roving due to the front and rear rows of the roving machine directly affects the unevenness in the thickness of the yarn after spinning. There was a problem in that the thickness of the yarn after spinning became large and the quality of the yarn deteriorated.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a bobbin conveyor for the front row of the roving machine for transporting the full bobbins in the front row, and a bobbin conveyor for the front row of the roving machine for transporting the full bobbins in the rear row of the roving machine. Prepare two sets of bobbins, one for the rear row and one for the rear row, and doff the full bobbins of the front row and the full bobbins of the rear row separately during doffing. Transfer the full bobbins in the rear row to the bobbin transporter for the rear row, and load the full bobbins in the front row to the spinning creel for the front row, and load the full bobbins in the rear row to the bobbin transporter for the rear row. The spinning creel is moved to the spinning creel for the rear row, and the full bobbins of the front and rear rows are set on different spinning creels.

Function In the above configuration, the full bobbins in the front and rear rows of the roving machine are doffed separately, and the full bobbins in the front and rear rows are doffed.
The bobbins are transferred to the rear row bobbin conveyor, and the full bobbins of the front and rear rows are separated and transported to the spinning creels for the front and rear rows, respectively, and set on the spinning creels, respectively. Thereby, by setting the draft amount of the draft mechanism corresponding to each spinning creel to a value suitable for the roving thickness of full bobbins in the front and rear rows, it is possible to reduce variations in the thickness of the spun yarn.

Embodiment In FIGS. 1 and 2, numeral 1 indicates a well-known roving frame, with a top rail 2 having a flyer 3 in front.

They are arranged in a staggered manner in the rear two rows, and a bobbin rail 4 is arranged below each flyer 3 so that it can be raised and lowered.

A bobbin wheel 5 concentric with each flyer 3 is arranged on the bobbin rail 4, respectively. Reference numeral 6 denotes a conveyor installed in front of the roving frame 1. In the drawing, it is incorporated in the lower part of a doffing machine, which will be described later, but it may also be installed independently of the doffing machine. The movable body 7 is provided with an endless moving body extending over substantially the entire length of the bobbin rail 4, and this movable body 7 is rotated forward and backward by a drive motor 8. In the aspect of the moving body 7, in the longitudinal direction, in front of the roving frame 1,
Vets 9 shown as front and rear row bobbin holders that can correspond to the rear two rows of bobbin wheels 5 are arranged in a staggered manner like the flyer 3 and the bobbin wheels 5. These pegs 9 are designed to hold the full bobbin A wound up by the roving frame 1 in an upright position.
The pitches between the bobbin wheels 5 in the front and rear rows are all equal, and the pegs 9 in the front and rear two rows for the front and rear rows of the conveyor 6 are set equal.
The pitch between the bobbin wheels 5 is made equal to the pitch between the bobbin wheels 5, but each bobbin wheel 5 in the front and rear rows of the rover 1
If the pitch between staff members is different, conveyor 6
The pitch between the two rows of pegs in the front and rear rows should match the pitch between the bobbin wheels 5. The spacing between the 9 rows of pegs in the front and rear rows is the same as the pitch between the 5 rows of bobbin wheels in the front and rear rows. The spacing is matched. Further, in the movable body 7 of the conveyor 6 in this embodiment, empty bobbin pegs 10 are arranged between the front and rear row pegs 9 to hold empty bobbins (not shown) in an upright state. However, these bets 1
0 can also be omitted.

Next, numeral 11 is a simultaneous pipe changer, which is exemplified as a doffing machine, which is disposed in front of the rover 1, and transfers full bobbins A in the front and rear rows of the rover 1 to pegs 9 in the front and rear rows of the conveyor 6, respectively. It is configured for doffing. That is, this simultaneous pipe changing machine 11 is equipped with a pipe changing head 12 extending over substantially the entire length of the bobbin rail 4, and this pipe changing head 12 is operated by several sets of Scott-Russell type strict linear motions operated by a drive motor 13. Mechanism 1
It is supported so as to be movable up and down by a lifting mechanism 15 consisting of 4. The linear motion mechanism 14 includes a sliding shaft 16 supported slidably in the longitudinal direction, a coupling 17 fixed to the sliding shaft 16, and a drive link 18 connected with a pin to the pipe switching head 12. , which is half the length of the drive link 18 and is composed of a driven link 20 that is pin-connected to the middle of the drive link 18 and the pipe changer main body 19, and the sliding shaft 16 is moved to the right by the drive motor 13. When the pipe is moved towards the
It is designed to increase the The pipe changing head 12 has several sets of scooters operated by a drive motor 21.
Back-and-forth motion mechanism 2 consisting of Russell type strictly straight line motion mechanism 22
3, the tube change bar 24 is attached to be movable back and forth toward the roving frame 1.

The linear motion mechanism 22 is constructed in the same manner as the mechanism 14, and when the sliding shaft 25 is slid to the right by the drive motor 21, it moves the tube changing bar 24 forward toward the roving frame 1. There is. The pipe changing bar 24 has two kinds of long and short pipe changing arms 26B and 26F in front.

They are provided to protrude alternately so as to correspond to the respective bobbin wheels 5 in the rear two rows. The tips of these tube change arms 26F, 26B are formed into a bifurcated shape so as to be able to suspend the flange at the upper end of the full bobbin A, and the protrusion length of the tube change arms 26F, 26B is set to the length of the roving frame 1. It is set as shown in the figure so that full bobbins A in the front and rear rows can be taken out at the same time. The conveyor 6 and the pipe switching machine 11 are disclosed in Japanese Patent Application Laid-Open No. 57-106729, and detailed description thereof will be omitted.

Next, 27.28 is a bobbin conveyor for mounting and conveying the full bobbin A after doffing, and as shown in FIGS. They are arranged so that they can be moved.

One of the bobbin rails 27 hooks and conveys the full bobbin A doffed from above the bobbin wheel 5 in the front row of the roving frame 1, and the other bobbin conveyor 28 is connected to the bobbin wheel 5 in the rear row of the roving frame 1. The hook can hold and transport the fully doffed bobbin A. The above bobbin carrier 2
7 and 28 are both constituted by a bobbin carriage 31 as shown in FIGS. 11 and 12. In this bobbin carriage 31, 32 is a carriage bar.

A plurality of joints 3 have approximately the same width as the carriage bar 32.
It is pin-connected by 3. A large number of bobbin hangers 34 are attached to the lower surface of the carriage bar 32 at the same pitch as the bobbin hooks in a spinning creel, which will be described later, and a proximal body 35 is attached to the upper surface of the carriage bar 32 for each bobbin. They are attached at positions corresponding to the hangers 34, respectively. The number of bobbin hangers 34 of the bobbin carriage 31 is set to 108 or more if the number of flyers on the roving frame 1 is 3 in the front and 54 in the back, and the number of bobbin hangers 34 is set to 108 or more, and the number of bobbin hangers 34 is set to 108 or more when the number of flyers on the roving frame 1 is 3 in the front and 54 in the back. However, it is not limited to this.

Furthermore, support rods 36 are attached to the upper surface of each of the carriage bars 32 near both ends, and a pair of support rollers 38 and a pair of guide rollers 39 are rotatably attached to a support body 37 attached to the support rods 36, respectively. It is being On the other hand, both the guide devices 29 and 30 are constituted by a cross-sectional guide rail 41 supported by a rail hanger 40 as shown in FIGS. 4 and 5, and a pair of support surfaces 41a of this guide rail 41 The support roller 38 is supported by the support roller 38, and the guide roller 39 is guided by the pair of guide surfaces 41b of the guide rail 41. The above guide device! As shown in FIG. 7, the guide rails 41 of 29 and 30 are arranged from the roving frame 1 position to each spinning frame 42 position, and carry the front and rear row bobbin conveyors 27 and 28, respectively, to the front and rear row full bobbins. A can be moved to the corresponding spinning frame 42 position for setting. As shown in FIG. 7, the two guide rails 41 are connected to the spare rails 44 of each spinning frame 43 of the spinning frame group G via a main rail 42, respectively. A return rail 45 is connected in parallel in the middle of the main rail 42, and a roving stopper 46 is attached in the middle of the return rail 45. Also, the return rail 45 has a standby rail 47.
are connected in parallel. In FIG. 7, as shown in FIG. 9, the spare rail 44 provided along the row of bobbin hooks 43a of the spinning creel guides the bobbin carriage 31, but as shown in FIG. Alternatively, the guide may be guided to the creel rail 100. At each branch point 48 of the preliminary rail 44, a switch 5 as shown in FIG.
2 is provided. These switches 52 are constructed by disposing a switching piece 54 that is switched and operated by an air cylinder 53 in a guide path 55 of a guide roller 39, and the air cylinder 53 is connected to a control device (not shown) such as a computer. The operation is controlled accordingly. The switching piece 54 is rotatably attached to the pivot of the lever 101,
Stopper 101a of lever 101 by spring 102
is in contact with.

Note that the switch having the same or substantially the same configuration as the switch 52 is the return rail 45, the standby rail 47, and the guide rail 41.
It is also provided at each branch point 49a, 49b, 50.51. Note that the above-mentioned branch point 49a.

Switch 49b is switched to guide in one direction only. The spinning frames 43 of the spinning frame group G are divided into a front row spinning frame 43F that loads full bobbins A in the front row of the roving frame 1, and a rear row spinning frame 43B that loads full bobbins A in the rear row of the roving frame 1, and these spinning frames 43F, Corresponding bobbin carriages 31 for the front and rear rows are sent to the spare rail 44 of 43B by the action of a switch 52, respectively.

Next, a transfer device 56 for moving the bobbin carriage 31 above one end (the right end in FIG. 1) of the conveyor 6 is attached to the guide rail 41 as shown in FIGS. 4 to 6. ing. In this transfer device 56, 57 is a bracket fixed to the upper surface of the guide rail 41, and swing arms 58,
59 are respectively pivotally connected, and these swing arms 58.5
Bearing boxes 60 and 61 are attached to 9, respectively.

These bearing boxes 60.61 feed discs 62.6
3 shafts 64 and 65 are rotatably supported. Further, a drive motor 66 is attached to one of the bearing boxes 60,
Further, a tension spring 67 is tensioned between the tips of the swing arms 58 and 59, and the feed disk 6
When the carriage bar 32 is present between 2.63 and 2.63, both feed disks 62.63 are brought into elastic pressure contact with the sides of the carriage bar 32, and when the carriage bar 32 is not present between the feed disks 62.63, the bearing box 60
．． 61 is brought into contact with the guide rail 41. A proximity switch 68 for detecting the proximity object 35 of the bobbin carriage 31 is attached to the bracket 57. A detection signal from the proximity switch 68 causes the drive motor 66 to stop, and the bobbin carriage 31 is moved to the bobbin hanger 34.
It can be moved intermittently at each mounting pitch. The transfer device 56 is attached to the guide rail 41, main rail 42, spare rail 44, return rail 45, and standby rail 47 at pitch intervals shorter than the length of the bobbin carriage 31, and its operation is controlled by a control device. It has become so.

Next, on one end side of the conveyor 6, the front and rear rows of full bobbins A attached to the pegs 9.9 of the conveyor 6 are placed in front and rear rows, respectively.
Bobbin hanger 34 of rear row bobbin carrier 27.28.
34 is disposed as shown in FIGS. 3 and 4. This transfer device 69 is composed of a bobbin lifting device 70 and a bobbin transfer device 71. This bobbin lifting device 70 has a sole plate 72 fixed to the floor.
a pair of opposing support frames 73.7 on one end of 2;
3 are erected, and the upper ends of these frames 73 and 73 are connected by a stay beam 74. Two vertical guide rods 75.75 are fixedly arranged between the support frames 73.73, and these guide rods 7
A mounting table 76 is attached to 5.75 so as to be movable up and down.

On the above-mentioned mounting table 76, there is one bobbin hanger -34,3 of the front and rear row bobbin carriers 27 and 28 which are indexed and stopped.
Pegs 77F and 77B are installed at positions opposite to the pegs 77F and 77B, respectively, to which a full bobbin A can be attached. Further, one end portion of a lifting chain 78 is connected to the mounting table 76 . This lifting chain 78 consists of a chain wheel 79 attached to the stay beam 74 and a sole plate 72.
The piston rod 8 of the lifting cylinder 80 is connected by a pin to
It is connected to a rear entry beam 74 which is suspended from a chain wheel 82 attached to 1. The elevating cylinder 80 is capable of elevating the mounting table 76 between a lowered position shown in phantom lines in FIG. 4 and an elevated position shown in solid lines in FIG.

Next, the bobbin transfer device 71 is moved to the sole plate 72.
Vertical pivots 85.86 are rotatably supported by brackets 83.84 fixed to
are fixed respectively. Lifting cylinders 89 and 89 are fixed downwardly to the tips of the gripping arms 87 and 88, respectively;
Piston rods 90 of their lifting cylinders 89, 89
．． Bobbin grippers 92 each having four gripping claws 91 that are opened and closed by cylinders (not shown) are attached to 90 . This bobbin gripping tool 92 is, for example, JP-A No. 58-4
The one disclosed in FIG. 11 of Japanese Patent No. 1919 may be used, and detailed explanation thereof will be omitted here. The one pivot shaft 85 indexes and moves the bobbin gripping tool 92 of the gripping arm 87 above a predetermined front row peg 9 of the stopped conveyor 6 and one of the pegs 77F of the mounting table 76 in the lowered position. position, and the other pivot 86 can move the bobbin gripping tool 92 of the gripping arm 88 above the predetermined rear row peg 9 of the conveyor 6 at index stop and the other peg 77B of the mounting table 76 in the lowered position. and the re-grasping arm 8
7.88 are connected by a connecting rod 93 so as to interlock with each other. An operating arm 94 is fixed to the lower end of one of the pivot shafts 86, and a piston rod 96 of a swinging cylinder 95, which is connected to the sole plate 72, is connected with a pin. This swinging cylinder 95 is configured to swing the gripping arms 87, 88 between the position shown in phantom lines and the position shown in solid lines in FIG.

Next, in the case of the above-mentioned structure, when the full bobbin A unwound by the roving frame 1 is transported to the spinning frame 43 position and set, first, when the roving frame 1 is almost full, the roving frame 1 is driven by an appropriate command. The motor 13 rotates forward and the lifting mechanism 15 operates,
The pipe changing head 12, which has been in the standby position shown in FIG. 2, rises to the highest position. Next, the moving body 7 of the conveyor 6 rotates intermittently in the counterclockwise direction in FIG. Empty bobbins (not shown) are removed one by one by a transfer device 69 and mounted on empty bobbin pegs 10, 10 of the conveyor 6. This empty bobbin transfer operation is performed in the reverse order of the full bobbin A transfer operation described later. The above operation continues, and when the empty bobbins for one rover frame 1 are mounted on the pegs and these empty bobbins face each full bobbin A of the rover frame 1, the rotation of the movable body 7 is stopped. When the roving frame 1 is full and its operation is stopped, the bobbin rail 4 is lowered to a predetermined position as is well known.Next, the drive motor 21 of the simultaneous pipe changer 11 rotates forward and the forward and backward movement mechanism 23 is rotated. As a result, the tube changing arms 26F and 26B of the tube changing bar 24 are advanced from the standby position shown in FIG. At the end, the forked part of the tip is inserted into the upper part of the full bobbin A, and then the bobbin rail 4 is inserted.
is lowered slightly again, and as a result, the full bobbins A and A in the front and rear rows are suspended by the forked portions of the pipe changing arms 26F and 26B, and then the drive motor 21 is reversed and the forward and backward movement mechanism 2
3 is activated, and the pipe switching arms 26F and 26B start to retreat.

While the tube change arms 26F and 26B are retracting, the front row full bobbin A is
When passing near the upper part of the pegs 9 for the rear row of the conveyor 6, the movable body 7 of the conveyor 6 moves to the left in FIG. The bag 9.9 for the front and rear rows is moved upward without interfering with the empty bobbin on the conveyor 6.
Next, the drive motor 13 is reversely rotated to lower the tube changing head 12, and the full bobbins A, A of the front and rear rows are attached to the corresponding pegs 9.9 for the front and rear rows. Thereafter, the drive motor 21 is reversely rotated again, the pipe changing arms 26F, 26B are retracted, the two prongs are separated from the full bobbins A, A, and then the pipe changing head 12 is raised to the rising end again. Next, the movable body 7 of the conveyor 6 moves in the opposite direction (to the right in FIG. 1) by 1/2 pitch of the 9 rows of pegs, and the empty bobbin on the conveyor 6 is moved to the pipe changing arm 26F.
Next, after the tube changing head 12 is lowered, the tube changing arms 26F and 26B move forward to insert the forked part into the upper part of the empty bobbin, and then the tube changing head 12 is raised again. Remove the empty bobbin from Betsugu 10.10.

The primary suspended from the pipe changing arms 26F and 26B, the pipe changing arm 26F
, 28B start moving forward, and in the middle of the forward movement, the movable body 7 of the conveyor 6 is moved by one-half pitch of the nine rows of hepegs in the left direction. Each bobbin wheel 5 is moved upward passing between the full bobbins A and A. Thereafter, the bobbin rail 4 rises to the winding start position, the bobbin wheel 5 is inserted into the lower hole of the empty bobbin, lifts the empty bobbin, and the upper hole of the empty bobbin is inserted into the leg of the flyer 3. After that, the pipe changing arms 26F and 26B are returned to the backward position, and the operation of the rover frame 1 is resumed.

When the pipe changing arms 26F and 26B are returned to the backward position, the movable body 7 of the conveyor 6 is rotated clockwise in FIG.
When the forward end of A is moved to the take-out position below the bobbin gripping tools 92 and 92 in the transfer device 69 shown in FIG. 3, the movement of the moving body 7 is temporarily stopped. The lifting cylinders 89, 89 at 88° are operated to lower the bobbin gripping tools 92, 92 to the upper height position of the full bobbins A, A. After that, the bobbin gripping tools 92, 92 are activated to grip the upper part of the full bobbins A, A with the gripping claws 91,
Thereafter, the lifting cylinders 89.89 are activated again to raise the bobbin gripping device 92.92, thereby raising the bobbin gripping device 9.
2.92 lifts full bobbins A and A and releases them from peg 9.9.

Next, the swinging cylinder 95 is activated and the gripping arms 87, 88
from the solid line position to the imaginary line position in FIG. The cylinders 89, 89 descend again to lower the full bobbins A, A, and after inserting the lower holes of the full bobbins A, A into the pegs 77F, 77B, the full bobbins A, A
The zero-order bobbin gripper 92. is used to place the bobbin on the mounting table 76.
After 92 releases the grip on the full bobbin A, A, the lifting cylinder 89.89 raises the bobbin gripping tool 92.92, and then the gripping arm 87.88 is moved to the solid line position in FIG. 3 by the swinging cylinder 95. will be reinstated.

On the other hand, the pegs 77F and 77B of the mounting table 76 are full of bobbin A.
, A are attached, after the gripping arms 87, 88 return, the lifting cylinder 80 is operated to lower the chain wheel 82 and raise the mounting table 76 from the imaginary line position in FIG. 4 to the solid line position. As a result, the full bobbins A, A in the front and rear rows of the mounting table 76 are placed on the bobbin hangers 34.34 at the forwardmost ends of the front and rear row bobbin transport bodies 27.28, which are waiting in advance above the mounting table 76, respectively. The upper holes are inserted and full bobbins A, A are attached to the bobbin hangers 34, 34. Thereafter, the lifting cylinder 80 is actuated to raise the chain wheel 82, which lowers the mounting table 76 and returns it to the lowest position.Next, the transfer device 56.56
The drive motors 66,66 of the feed discs 62,66 are operated to rotate the feed discs 62,62, respectively.
62 rotations to move the bobbin carriage 31.31 to the first position.
Move it to the right in the figure. These drive motors 66
．． 6 is driven by the proximity switch 68. 68 is the proximity body 35.3
5 is detected, the bobbin transport body 27 is stopped.
．． The empty bobbin hanger 34.34 next to 28 is the peg 77F of the bobbin lifting device 7o.

It is located above 77B. On the other hand, when the full bobbins A and A at the take-out position are removed from the pegs 9.9, the movable body 7 of the conveyor 6 is moved again by one pitch of the 9 peg rows, and is moved to the full bobbins A in the next front and rear rows. , A is located at the extraction position,
Thereafter, by repeating the above operation, all full bobbins A in the front row of the rover 1 are attached to the bobbin hanger 34 of the front row bobbin carrier 28, and all full bobbins A in the rear row of the rover 1 are attached to the bobbin hanger 34 of the front row bobbin conveyor 28. Bobbin hanger 3 of bobbin carrier 28
It is installed on 4. In the drawing, the bobbin carriers 27 and 28 are designed to be able to mount full bobbins A and A in the front and rear rows for two doffings, so the full bobbins A and A in the front and rear rows doffed next. The next empty bobbin hanger 34.34 of the bobbin carrier 27.28 is attached. When all the full bobbins A and A in the front and rear rows for two dots are loaded onto the front and rear row bobbin carriers 27 and 28 in the above manner, a loading completion signal is sent to the control device. When the full bobbin A disappears from the moving body 7 of the conveyor 6, the drive motor 13 is reversed and the tube changing head 12 is lowered as shown in FIG. 2, and the upper surface of the tube changing head 12 is used as a step. be done.

On the other hand, while the roving frame 1 is winding the roving and doffing as described above, the spinning creel 43
When the Shinomaki bobbin hooked on the bobbin hook 43a in the outer row of P becomes an empty bobbin, the empty bobbin is attached to the full bobbin A suspended on the bobbin carriage 44 on the spare rail 44 and JP-A-58 - Replaced by the exchanger etc. disclosed in Publication No. 81632 or manually,
An empty bobbin is suspended from the bobbin challenge 31.31 at the spare rail 44 position. The inner row bobbins and outer row bobbins of the spinning creel 43P are manufactured by Japanese Patent Application Laid-Open No. 58-816.
Although it is replaced using a replacement device or the like disclosed in Publication No. 32, the explanation here will be omitted. As described above, when all the full bobbins in the bobbin carriages 31, 31 of the spare rail 44 and the empty bobbins in the spinning creel 43P are replaced, a replacement completion signal is sent to the control device, and this signal sends a replacement completion signal to the control device. is the spare rail 44 from which the replacement completion signal was sent.
．． The drive motors of the moving devices attached to the main rail 42 and return rail 45 are reversed, and the switch 52 at the branch point 48 is appropriately switched. As a result, the bobbin carriages 31.31 at the spare rail 44 position are first conveyed to the return rail 45, and then the remaining threads of the empty bobbins suspended on these bobbin carriages 31.31 are removed by the roving stopper 46. After that, the bobbin charge 31.31 is conveyed to the rear of the return rail 45 and the standby rail 47, and is kept on standby at this position.

In this case, the operation of the transfer device for the return rail 45 and the standby rail 47 and the switch at the branch point 50 are appropriately controlled by the control device, but these controls can be performed by a microcomputer, etc., and the details are explained here. The explanation will be omitted.

Bobbin carriage 3 from spare rail 44 as described above
When the removal of the transfer device 1.31 is completed, a removal completion signal is sent to the control device, after which the reversal of the drive motor of the transfer device is stopped and the switch 52 is returned to its original position. Generally, the take-out completion signal from the spare creel 44 is sent to the spare creels 44 and 44 of the two spinning frames 43F and 43B, one for front row full bobbins and one for rear row full bobbins, while the two roving frames perform two dotting operations. Rover 1 so that each message is sent from
It is set based on the number of spinning machines 43, etc.

Next, while the unloading completion signal is being sent from the front row spinning frame 43F position as described above, when the loading completion signal is sent from the 1st position of the two spinning frames as described above,
The front row guide rails 41, 41 . The drive motors of the transfer devices attached to the main rail 42 and the spare rail 44 for sending the takeout completion signal at the front row spinning frame 43F position are rotated in the normal direction, and the switch 52 at each branch point 48.51 is rotated forward.
are appropriately switched so that the spare rails 44 and the bin carriages 31.31 can be guided from these guide rails 41.41. As a result, the guide rail 41 for the front row.
Bobbin carriages 31 and 31 supported by 41 respectively.
are conveyed in a line to the spare rail 44 which sends a take-out completion signal at the front row spinning machine 43F position, after which the normal rotation of the drive motor is stopped and the switch 52 is returned to its original position. Next, the two Rover frames 1.1 transmit the above-mentioned installation completion signal.
Front row guide rail 41 and main rail 4 on one side of
2 and the drive motor of the transfer device attached to the return rail 45 is reversed, and the switch at the branch point 51 corresponding to the guide rail 41 is switched so that the bobbin carriage 31 can be introduced. As a result, the bobbin carriage 31 that was waiting on the return rail 45 is transported to the guide rail 41 at the one position of the roving frame 1, and then the switch is returned. Next, the drive motors of the transfer devices attached to the front row guide rail 41 and standby rail 47 at the other roving frame 1 position are reversed, and the switch at the branch point 51 corresponding to the guide rail 41 is changed to the above-mentioned state. Similarly, the bobbin carriage 31 that was waiting on the standby rail 47 is transferred to the other front row guide rail 41, and then the reverse rotation of each of the drive motors is stopped, and the switch 51 is switched. Will be reinstated. on the other hand,
When the replacement completion signal is sent from the spare rail 44 at the rear row spinning machine 43B position, the bobbin carriages 31 and 31 are taken out from the spare rail 44 and conveyed to the return rail 45, as in the case for the front row. The spare rail 4
When the unloading completion signal is sent from 4, the above-mentioned roving frame 1
．． The bobbin carriages 31.31 of the rear row guide rails 41.41 in the 1 position are transported to the spare rails 44, and the bobbin carriages 31.31 taken out from the spare rails are transported to these guide rails 41.41. be done. In addition, the above-mentioned roving stopper 46 and standby rail 47
The number may be increased as necessary. The full bobbins A, A of the front and rear rows doffed by the roving frame 1 as described above are the front,
Spare rails 44 for separate spinning machines 43F and 43B for the back row
．． 44 and set on the spinning creels of those spinning machines 43F and 43B. Therefore, each spinning machine 43F,
The draft amount in 43B is respectively before.

By adjusting the value to suit the full bobbins A and A in the rear row, it is possible to almost eliminate yarn thickness unevenness due to the difference in roving thickness caused by the difference between the front and rear rows of the roving frame 1. Further, the empty bobbin replaced at the spinning frame 43 position is conveyed to the guide rail 41, 41 at the roving frame 1 position and used for the next tube replacement.

In addition, in the above embodiment, the bobbin conveyor 27, 28
Although a case has been described in which the conveyance of the bobbin conveyors 27 and 28 is carried out automatically, the bobbin conveyors 27 and 28 may be conveyed manually by an operator pulling and moving the bobbin conveyors 27 and 28 using a hook.

Furthermore, although the above embodiment shows the case where the full bobbins A of the roving frame 1 are doffed onto the conveyor 6 by the simultaneous pipe changer 11, it is not possible to
Doffing may be done in groups using a mobile doffing machine as disclosed in the specification of No. 5823. In addition, in the above embodiment, spinning machines for the front and rear rows are prepared and each spinning creel is set, but the driving systems for the R side and L side of the spinning machine are separate, and the spinning machines for one side are set separately. The spinning creel on the other side may be configured for loading full bobbins in the front row, and the spinning creel on the other side for loading full bobbins in the rear row, and these spinning creels may be configured to load full bobbins in the front and rear rows. Further, the bobbin conveyor may be configured with a storage car that runs on the floor,
In this case, the full bobbin of the roving frame may be loaded directly to the side of the roving frame to be loaded onto the delivery car, or the full bobbin of the roving frame may be loaded onto the front conveyor as in the above embodiment. It may also be carried out from above the conveyor.

Effects of the Invention As described above, in the present invention, full bobbins in the front and rear rows doffed from the roving frame are transferred to separate bobbin transport bodies for the front row and for the rear row, respectively, and these bobbin transport bodies are transferred. The full bobbins in the front row are loaded onto the spinning creel for the front row, and the full bobbins in the rear row are loaded onto the spinning creel for the rear row by moving them to their respective spinning machines. Even if there is a large difference in thickness between the roving of the bobbin and the roving of the full bobbin in the back row, the spinning conditions of the draft mechanism corresponding to the spinning creel for the front row and the back row should be By setting a value appropriate for the yarn thickness of the yarn, it is possible to reduce the difference in thickness between the yarn spun by the spinning creel for the front row and the yarn spun by the spinning creel for the rear row. It is possible to reduce unevenness in yarn thickness and improve yarn quality.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIG. 1 is a partially cutaway plan view of the roving frame, FIG. 2 is a front view of FIG. 1 with a portion omitted, and FIG. A plan view of the transfer device,
FIG. 4 is a side view of the transfer device with some parts omitted, FIG. 5 is a sectional view showing the transfer device for the bobbin conveyor, FIG. 6 is a plan view of the transfer device, and FIG. 7 is the bobbin conveyor. FIG. 8 is an explanatory diagram showing the switch, FIG. 9 is an explanatory diagram showing the spare rail of the spinning machine, FIG. 10 is an explanatory diagram showing the grill rail section of the spinning machine, and FIG. 12 is a side view of the bobbin carrier, and FIG. 12 is a plan view of the bobbin carrier.

Claims (1)

[Claims] 1. Doff full bobbins from a roving machine with flyers arranged in a staggered manner in the front and back rows, transfer those full bobbins to a bobbin conveyor, move the bobbin conveyor, and transfer the full bobbins to a spinning creel. In the method of doffing and conveying full bobbins to be conveyed, the bobbin conveying body is one for the front row to convey the full bobbins in the front row of the roving machine, and the one for the rear row to convey the full bobbins in the rear row of the roving frame. When doffing, the full bobbins in the front row and the full bobbins in the rear row are doffed separately, and the doffed full bobbins in the front row are used as the front row bobbin carrier, and the full bobbins in the rear row are doffed. The bobbins are transferred to the rear row bobbin transport bodies, and the front row bobbin transport body is moved to the front row spinning creel where the front row full bobbins are loaded, and the rear row bobbin transport body is moved to the rear row spinning creel where the rear row full bobbins are loaded. , a method for doffing and conveying full bobbins in which the full bobbins in the front and rear rows are set on different spinning creels.