JPH0515809B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention provides a full bobbin 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 the full bobbin to a spinning machine. This invention relates to a doffing conveyance device.

Conventional technology Conventionally, as a device for doffing full bobbins of a roving frame and conveying them to a spinning machine, two rows of full bobbins in front and rear of the roving machine 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 roving is wound by the flyers in the front row, and the roving is wound by the flyers in the rear row. The thickness of the rovings differs due to differences in the fiber passage paths of the rovings in the front and rear rows, and normally the rovings in the front row are thinner than the rovings in the rear row, and the difference in thickness is It has become clear that the percentage is more than 1%. 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. . 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 full bobbins in the front and rear rows are fed to the same spinning creel, variations in the thickness of the roving due to the front and rear rows of the roving machine directly affect the variation in the thickness of the yarn after spinning. give,
There was a problem that the thickness of the thread after spinning became large and the quality of the thread deteriorated.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a conveyor having bobbin holders for the front and rear rows on which the full bobbins of the front and rear rows of the roving frame can be mounted, respectively. and a doffing machine for doffing full bobbins in the front and rear rows of the roving frame to the bobbin holder,
A bobbin conveyor for the front and rear rows is movably arranged above one end of the conveyor, and the full bobbins of the front and rear rows attached to the bobbin holders for the front and rear rows are transported by the bobbin conveyor for the front and rear rows. The present invention is characterized in that a doffing and conveying device for a full bobbin is constructed by disposing a transfer device that can be attached to each of the bobbins.

Function In the above configuration, the full bobbins in the front and rear rows of the roving frame are doffed by the doffing machine to the bobbin holders for the front and rear rows of the conveyor, respectively, and the full bobbins for the front and rear rows attached to the bobbin holders are doffed by the doffing machine. The full bobbin is loaded onto the front and rear bobbin carriers by the transfer device, and the front and
The full bobbins in the rear row are separated and conveyed to the spinning creels for the front and rear rows, and loaded onto the spinning creels, respectively. 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, reference numeral 1 denotes a well-known roving frame, on the top rail 2 of which flyers 3 are arranged in two rows, front and rear, in a staggered manner, and below each flyer 3 there is a bobbin rail 4. are arranged to be movable up and down, and a bobbin wheel 5 concentric with each flyer 3 is arranged on this bobbin rail 4, respectively. A conveyor 6 is arranged in parallel in front of the rover 1, and although it is incorporated in the lower part of a doffing machine which will be described later in the drawing, it may be arranged independently of the doffing machine. This conveyor 6
The movable body 7 is provided with an endless movable body 7 extending over substantially the entire length of the bobbin rail 4, and this movable body 7 is rotated in forward and reverse directions by a drive motor 8. On the circumferential surface of the movable body 7, there are pegs 9 shown as bobbin holders for the front and rear rows that can correspond to the front and rear rows of bobbin wheels 5 of the roving frame 1 in the longitudinal direction. They are arranged in a staggered manner. These pegs 9 are designed to hold the full bobbin A wound up by the roving frame 1 in an upright position. In the drawing, the pitch between the bobbin wheels 5 in the front and rear rows of the rover 1 is equal, and the pitch between the pegs 9 in the front and rear rows of the conveyor 6 is equal to the pitch between the bobbin wheels 5. However, if the pitch between the bobbin wheels 5 in the front and rear rows of the rover 1 differs between staff members, the pitch between the pegs in the front and rear two rows of the conveyor 6 is set equal to those bobbin wheels. All you have to do is match the pitch between 5 and 5. The spacing between the 9 rows of pegs in the front and rear rows is 5 bobbin wheels in the front and rear rows.
The spacing between columns has been matched. Further, in the movable body 7 of the conveyor 6 of this embodiment, empty bobbin pegs 10 for holding empty bobbins (not shown) in an upright state are provided between each of the pegs 9 in the front and rear rows. However, these pegs 10 can also be omitted.

Next, reference numeral 11 denotes a simultaneous pipe changer, which is exemplified as a doffing machine, which is disposed in front of the rover 1;
It is configured so that full bobbins A in the rear row are doffed onto pegs 9 in front of the conveyor 6 and in the rear row, respectively. 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 connected to several sets of Scott-Rassel type strict straight lines operated by a drive motor 13. It is supported so as to be movable up and down by an elevating mechanism 15 consisting of a movement mechanism 14. 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 changing head 12. , the driven link 20 is half the length of the drive link 18 and is connected by a pin to the middle of the drive link 18 and the main body 19 of the pipe changer. When the pipe is moved to the right, the pipe changing head 12 is raised. The pipe changing head 12 is connected to the pipe changing bar 2 by a longitudinal movement mechanism 23 consisting of several sets of Scott-Ratssel type strict linear movement mechanisms 22 operated by a drive motor 21.
4 is attached to the roving frame 1 so as to be movable back and forth. The linear motion mechanism 22 is configured 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. It's summery. The pipe changing bar 24 has two types of pipe changing arms 26B and 26, long and short.
F are alternately protruded so as to correspond to the bobbin wheels 5 in the front and rear two rows. These tube change arms 2
The tips of 6F and 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 protruding length of the tube changing arms 26F and 26B is set at the front of the roving frame 1.
It is set as shown in the figure so that full bobbins A in the rear row can be taken out at the same time. The conveyor 6 and simultaneous tube changer 11 are disclosed in Japanese Unexamined Patent Publication No. 106729/1982, and detailed description thereof will be omitted.

Next, 27 and 28 are bobbin conveyors for mounting and conveying the full bobbin A after doffing, and as shown in FIGS. They are movably arranged side by side. One of the bobbin carriers 27 is a full bobbin A doffed from above the bobbin wheel 5 in the front row of the roving frame 1.
is carried by hooking and holding the bobbin to the other bobbin carrier 2.
Reference numeral 8 is designed to hook and hold a full bobbin A doffed from the bobbin wheel 5 in the rear row of the roving frame 1 for conveyance. Both of the bobbin carriers 27 and 28 are constituted by a bobbin carriage 31 as shown in FIGS. 11 and 12. In this bobbin carriage 31, a plurality of carriage bars 32 are connected by a pin through a joint 33 having approximately the same width as the carriage bar 32. A large number of bobbin hangers 34 are attached to the lower surface of these carriage bars 32 at the same pitches 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 to connect each of the bobbin hangers 34 and the like. They are installed in corresponding positions. The number of bobbin hangers 34 of the bobbin carrier 31 is set to 108 or more when the number of flyers of the roving frame 1 is 54 each in the front and rear, so that the number of bobbins A that is full enough to doff twice can be conveyed. However, it is not limited to this. Support rods 36 are attached to the upper surface of each of the carry 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. ing. On the other hand, the guide device 29,
30 is composed of a guide rail 41 having a square cross-section and supported by a rail hanger 40 as shown in FIGS. 4 and 5.
The support roller 3 is supported by a pair of support surfaces 41a.
8 and guide the guide roller 39 by a pair of guide surfaces 41b of the guide rail 41. As shown in FIG. 7, the guide rails 41 of the guide devices 29 and 30 are arranged from the roving frame 1 position to each spinning frame 43 position, and the guide rails 41 of the guide devices 29 and 30 are arranged from the roving frame 1 position to each spinning frame 43 position, and move the front and rear row bobbin conveyors 27 and 28, respectively, to the front and rear row bobbin carriers 27 and 28. The rear row full bobbin A can be moved to the corresponding spinning frame 43 position for loading. The two guide rails 41 are connected to the main rail 42 as shown in FIG.
are connected to the spare rails 44 of each spinning frame 43 of the spinning frame group G through the respective spinning frames. 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. Further, a standby rail 47 is connected to the return rail 45 in parallel. In FIG. 7, the bobbin carriage 31 is guided to the spare rail 44 provided along the row of bobbin hooks 43a of the spinning creel as shown in FIG. 9, but as shown in FIG. It is also possible to guide the user to 100. Each branch point 4 of the above-mentioned spare rail 44
8 is provided with a switch 52 as shown in FIG. These switches 52 are air cylinders 53
The switching piece 54 which is switched by the guide roller 3
9, and the air cylinder 53 is operated and controlled by a control device (not shown) such as a computer. The switching piece 54 is rotatably attached to the pivot of the lever 101, and is brought into contact with a stopper 101a of the lever 101 by a spring 102. Note that switches having the same or substantially the same configuration as the switch 52 are used at each branch point 49a, 49b, 5 of the return rail 45, standby rail 47, and guide rail 41.
0 and 51 are also provided. Note that the above branching point 4
The switches 9a and 49b are 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 cartridges 31 for the front and rear rows are fed into the spare rails 44 of 43B by the action of a switch 52, respectively.

Next, on the guide rail 41, there is a fourth transfer device 56 for moving the bobbin carriage 31 above one end (the right end in FIG. 1) of the conveyor 6.
They are attached as shown in FIGS. In this transfer device 56, reference numeral 57 denotes a bracket fixed to the upper surface of the guide rail 41, and swing arms 58, 59 are pivotally attached to the projecting portions on both sides of the guide rail 41, and these swing arms 58, 5
Bearing boxes 60 and 61 are attached to 9, respectively.
These bearing boxes 60 and 61 are the feed disk 6
2 and 63 shafts 64 and 65 are rotatably supported. Further, a drive motor 66 is attached to one of the bearing boxes 60, and is configured to drive the shaft 64 in forward and reverse rotations. Furthermore, a tension spring 67 is tensioned between the tips of the swing arms 58 and 59, and the feed disks 62 and 63
When there is a carriage bar 32 between them, both feed disks 62 and 63 are attached to the carriage bar 32.
The feed disk 6 is elastically pressed against the side surface of the
When the carriage bar 32 is not present between the bearing boxes 60 and 63, the bearing boxes 60 and 61 are brought into contact with the guide rail 41. A proximity switch 68 for detecting the object 35 in the vicinity 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 be stopped and the bobbin carriage 31 to be moved to the bobbin hanger 3.
It is designed so that it can be moved intermittently every four mounting bits. Note that the transfer device 56 includes the guide rail 41, the main rail 42, the spare rail 44,
They are attached to the return rail 45 and standby rail 47 at intervals shorter than the length of the bobbin carriage 31, respectively, and their operation is controlled by a control device.

Next, on one end side of the conveyor 6, the full bobbins A of the front and rear rows attached to the pegs 9 and 9 of the conveyor 6 are transferred to the bobbin hangers 34 and 34 of the front and rear row bobbin conveyors 27 and 28, respectively. A transfer device 69 for changing the contents is arranged 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 surface, and a pair of opposing support frames 73 are erected on one end of the sole plate 72.
3 and 73 are connected to each other by a stay beam 74. The support frame 73, 7
Two vertical guide rods 75, 75 are fixedly arranged between the two guide rods 75, 75.
A mounting table 76 is attached to the table so as to be movable up and down. On the above-mentioned mounting table 76, there are pegs 77F and 77B, which allow full bobbins A to be mounted at positions facing one of the bobbin hangers 34 and 34 of the front and rear row bobbin carriers 27 and 28, respectively, which are indexed and stopped. has been planted. Further, one end of a lifting chain 78 is connected to the mounting table 76 . This elevating chain 78 includes a chain wheel 79 attached to the stay beam 74 and a piston rod 8 of an elevating cylinder 80 connected with a pin to the sole plate 72.
It is suspended from a chain wheel 82 attached to 1 and then connected to a stay beam 74. The lifting cylinder 80 is adapted to raise and lower the mounting table 76 between a lowered position shown by a phantom line in FIG. 4 and a raised position shown by a solid line. Next, the bobbin transfer device 71 includes vertical pivots 85 and 86 rotatably supported by brackets 83 and 84 fixed to the sole plate 72, and the upper ends of these pivots 85 and 86 horizontal gripping arm 87,
88 are fixed respectively. The above gripping arms 87, 8
Lifting cylinders 89, 89 are fixed downwardly to the tips of the cylinders 8, respectively.
A bobbin gripper 92 having four gripping claws 91 that is opened and closed by a cylinder (not shown) is attached to the piston rods 90, 90, respectively. This bobbin gripping tool 92 may be, for example, the one disclosed in FIG. 11 of Japanese Patent Application Laid-Open No. 58-41919, and detailed explanation thereof will be omitted here. The one pivot shaft 85 is arranged so that the bobbin gripping tool 92 of the gripping arm 87 can be indexed and moved above a predetermined front row peg 9 of the stopped conveyor 6 and one peg 77F of the mounting table 76 in the lowered position. The other pivot shaft 86 can index and move the bobbin gripper 92 of the gripping arm 88 above the predetermined rear row peg 9 of the conveyor 6 in the stopped state and the other peg 77B of the mounting table 76 in the lowered position. and both gripping arms 8
7 and 88 are connecting rods 93 that interlock with each other.
connected by. Also, one of the above-mentioned shafts 8
An actuating arm 94 is fixed to the lower end of the actuating arm 94, and a piston rod 96 of a swinging cylinder 95, which is connected to the sole plate 72, is pin-connected to the actuating arm 94. This swinging cylinder 95 is designed to swing the gripping arms 87, 88 between a position shown in phantom lines and a position shown in solid lines in FIG.

Next, in the case of the structure described above, when the full bobbin A unwound by the roving frame 1 is conveyed to the spinning frame 43 position and set, first, when the roving frame 1 is almost full, an appropriate command is sent. Then, the drive motor 13 rotates normally and the elevating mechanism 15 operates, and 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.
The device 6 transfers empty bobbins (not shown) attached to the 28 bobbin hangers 34 one by one.
9 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 rover 1 becomes full and stops operating, the bobbin rail 4 is lowered to a predetermined position, as is well known. Next, the drive motor 21 of the simultaneous pipe switching machine 11 rotates forward and backward movement mechanism 23
is activated, and as a result, the tube changing arm 26 of the tube changing bar 24
F, 26B is passed from the standby position shown in FIG. inserted at the top. Next, the bobbin rail 4 is lowered slightly again, so that the front
The full bobbins A, A in the rear row are suspended by the forked parts of the tube change arms 26F, 26B, and then the drive motor 21 is reversed, the forward and backward movement mechanism 23 is activated, and the tube change arms 26F, 26B are moved backward. Start. This tube change arm 2
When the full bobbin A of the front row passes near the upper part of the peg 9 for the rear row of the conveyor 6 while the bobbins 6F and 26B are retracting, the moving body 7 of the conveyor 6 moves to the left in FIG. 1 by half the peg pitch of the peg 9 row. As a result, the full bobbins A, A in the front and rear rows are moved above the pegs 9, 9 for the front and rear rows without interfering with the empty bobbins on the conveyor 6. Next, the drive motor 13
is reversed, the tube changing head 12 is lowered, and the full bobbins A, A of the front and rear rows are attached to the corresponding pegs 9, 9 of the front and rear rows. Thereafter, the drive motor 21 is reversely rotated again, the tube changing arms 26F, 26B are retracted and the two prongs are separated from the full bobbins A, A, and after that, the tube changing head 12 is again raised to the rising end. Next, the moving body 7 of the conveyor 6 moves in the opposite direction (to the right in FIG. 1) by one-half pitch of the nine rows of pegs, so that the empty bobbins on the conveyor 6 are opposed to the tube changing arms 26F and 26B, respectively. . Next, after the tube change head 12 is lowered, the tube change arms 26F and 26B move forward to insert the two prongs into the upper part of the empty bobbin, and then the tube change head 12 rises again to peg the empty bobbin 10 and 10. It is pulled out from the pipe and suspended from the pipe changing arms 26F and 26B. Next, the pipe changing arms 26F, 26B start moving forward, and in the middle of their forward movement, the moving body 7 of the conveyor 6 is moved to the left by one-half pitch of the nine rows of pegs, and as a result, the pipe changing arms 26F, The empty bobbin 26B is moved upward by each bobbin wheel 5, passing between the full bobbins A and A on the conveyor 6. 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 switching arms 26F and 26B return to the backward position,
The operation of the roving frame 1 is restarted.

When the pipe changing arms 26F, 26B are returned to the backward position, the movable body 7 of the conveyor 6 is rotated clockwise in FIG. The one at the forward end is the bobbin gripping tool 9 in the transfer device 69 shown in FIG.
When moved to the take-out position below 2,92, the movement of the moving body 7 is temporarily stopped. Next, the gripping arm 87,
The lifting cylinders 89, 89 are operated to lower the bobbin grippers 92, 92 to the upper height position of the full bobbins A, A. After that, the bobbin gripping tools 92, 9
2 is activated and the gripping claws 91 hold the full bobbins A, A.
Grasp the upper part of the lifting cylinder 89, 89.
is operated again to raise the bobbin gripping tools 92, 92, whereby the bobbin gripping tools 92, 92 lift the full bobbins A, A and remove them from the pegs 9, 9. Next, the swinging cylinder 95 is operated to move the gripping arms 87 and 88 from the solid line position to the imaginary line position in FIG. Move the pegs 77F and 77B of the stand 76 above. Next, the lifting cylinders 89, 89 descend again, and the full bobbin A,
After lowering the full bobbin A and inserting the lower hole of the full bobbin A into the pegs 77F and 77B, the full bobbin A,
A is placed on the mounting table 76. Next, after the bobbin gripping tools 92, 92 release their grips on the full bobbins A, A, the lifting cylinders 89, 89 move the bobbin gripping tools 9
2 and 92 are raised, and then the gripping arms 87 and 88 are returned to the solid line position in FIG. 3 by the swinging cylinder 95. On the other hand, the peg 77F of the mounting table 76,
When full bobbins A and A are loaded on 77B, after the gripping arms 87 and 88 return, the lifting cylinder 80 is operated to lower the chain wheel 82 and lift the mounting table 7.
6 is raised from the imaginary line position in FIG. 4 to the solid line position. As a result, the full bobbins A and A in the front and rear rows of the mounting table 76 are placed on the bobbin hangers 34 and 34 at the forwardmost ends of the front and rear row bobbin carriers 27 and 28, respectively, which are on standby above the mounting table 76. The upper holes are inserted and their bobbin hangers 34, 34
Full bobbins A and A are installed. Thereafter, the elevating cylinder 80 operates to raise the chain wheel 82, thereby lowering the mounting table 76 and returning it to the lowest position. Next, the drive motors 66, 66 of the transfer devices 56, 56 operate to rotate the feed disks 62, 62, and the rotation of the feed disks 62, 62 causes the bobbin carriage 3
1 and 31 to the right in FIG. The driving of these drive motors 66, 6 is stopped when the proximity switches 68, 68 detect the proximate objects 35, 35, so that the next empty bobbin hanger 34, 34 of the bobbin transport bodies 27, 28 is moved to the bobbin lifting device 7.
It is located above the pegs 77F and 77B of 0. On the other hand, when the full bobbins A, A at the take-out position are removed from the pegs 9, the movable body 7 of the conveyor 6 is moved again by one pitch of the peg 9 row, and the next previous one is moved.
The full bobbins A and A in the rear row are placed in the take-out position, and the above operations are repeated to remove the roving frame 1.
All the full bobbins A in the front row are attached to the bobbin hanger 34 of the front row bobbin conveyor 27, and the roving frame 1
All the full bobbins A in the rear row are attached to the bobbin hanger 34 of the rear row bobbin carrier 28. In the drawing, the bobbin carriers 27 and 28 are designed so that full bobbins A and A in the front and rear rows for two doffings can be mounted, so that the full bobbins A and A in the front and rear rows doffed next. The empty bobbin hangers 34 and 34 next to the bobbin carriers 27 and 28 are mounted. As described above, all the full bobbins A and A in the front and rear rows for two dots are transferred to the front and rear row bobbin conveyor 2.
7, 28, a mounting completion signal is sent to the control device. Note that the moving body 7 of the conveyor 6
When there are no more full bobbins A from above, 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.

On the other hand, while the roving frame 1 is winding the roving and doffing as described above, the spinning frame group G
For example, in the spinning machine 43F for loading full bobbins in the front row, when the Shinomaki bobbin hooked on the outer row bobbin hook 43a of the spinning creel 43P becomes an empty bobbin, the empty bobbin is transferred to the bobbin carriage 44 on the spare rail 44. The suspended full bobbin A is exchanged by an exchanger or the like disclosed in Japanese Patent Application Laid-Open No. 58-81632, or manually.
Bobbin carriage 31, 3 at spare rail 44 position
An empty bobbin is suspended from 1. Note that the bobbins in the inner row and the bobbins in the outer row of the spinning creel 43P are exchanged using an exchanger or the like disclosed in Japanese Patent Application Laid-Open No. 58-81632, but a description thereof will be omitted here. As mentioned above, the full bobbins of the bobbin carriages 31, 31 of the spare rail 44 and the spinning creel 43P
When all the empty bobbins have been replaced, a replacement completion signal is sent to the control device, and the control device uses the replacement rail 44, main rail 42, and return rail 45 to which the replacement completion signal was sent.
The drive motor of the moving device attached to the is 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 transported to the return rail 45, and then those bobbin carriages 31, 31 are transferred to the return rail 45.
The remaining threads of the empty bobbins suspended on the bobbins 1 and 31 are removed by the roving stopper 46, and then the bobbin carriages 31 and 31 are moved to the return rail 4.
5 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 or the like. A detailed explanation will be omitted. Bobbin carriage 3 from spare rail 44 as described above.
When the removal of the transfer device 1 and 31 is completed, a removal completion signal is sent to the control device, after which the reverse rotation 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, 44 of the two spinning frames 43F, 43B, one for front row full bobbins and one for rear row full bobbins, while the two roving frames perform two dotting operations. The number of spinning frames 1 and spinning frames 43 are set so that the transmissions are transmitted from the respective spinning frames 1 and 43.

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 control device According to the command, the guide rail 4 for the front row in the first position of the roving frame
1, 41, main rail 42 and front row spinning machine 4
The drive motors of the transfer devices attached to the spare rails 44 for emitting the removal completion signal at the 3F position are rotated in the normal direction, and the switches 52 at the branch points 48 and 51 are switched as appropriate, and the guide rails 4 of these
1, 41 to the spare rail 44. As a result, the bobbin cartridges 31, 31 supported by the front row guide rails 41, 41 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, and then The rotation is stopped and the switch 52 is returned to its original position. Next, the guide rail 4 for the front row on one of the two rovering machines 1, 1 which sends the installation completion signal.
1. The drive motor of the transfer device attached to the main rail 42 and the return rail 45 is reversed and the branch point 5 corresponding to the guide rail 41 is reached.
One switch is switched over so that a bobbin carrier 31 can be introduced. As a result, the bobbin carriage 31 that was waiting on the return rail 45 is conveyed to the guide rail 41 at the one position of the roving frame 1, and then the switch is returned to its original position. 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 returned to its original position. Ru. On the other hand, when a replacement completion signal is sent from the spare rail 44 at the rear row spinning machine 43B, the bobbin carriages 31, 31 are taken out from the spare rail 44 and conveyed to the return rail 45, as in the case for the front row. When the ejecting completion signal is sent from the spare rail 44, the rear row guide rails 41, 41 at the roving frame 1, 1 position
The bobbin carriages 31, 31 are conveyed to the spare rail 44, and these guide rails 41, 41
The bobbin carriages 31, 31 taken out from the spare rail are conveyed. Note that the number of the roving stoppers 46 and standby rails 47 may be increased as necessary. The full bobbins A and A in the front and rear rows doffed by the roving frame 1 as described above are the front,
It is transported to the spare rails 44, 44 of separate spinning machines 43F, 43B for the back row, and the spinning machines 43 of those spinning machines 43
It is set on spinning creel F, 43B. Therefore, by adjusting the draft amount in each spinning frame 43F, 43B to a value suitable for the full bobbins A, A in the front and rear rows, the roving produced by the difference between the front and rear rows of the roving frame 1 can be reduced. It is possible to almost eliminate unevenness in thread thickness due to differences in thread thickness. Further, the empty bobbin replaced at the spinning frame 43 position is conveyed to the guide rails 41, 41 at the roving frame 1 position and used for the next tube replacement.

In addition, in the above embodiment, the guide rail 41
Although the case where the bobbin carriers 27 and 28 are automatically transported between the and spare rails 44 has been described, it is possible to manually transport the bobbin carriers 27 and 28 by the operator pulling the bobbin carriers 27 and 28 with a hook. A bobbin carrier may be used to transport the bobbin. Further, in the above embodiment, a case is shown in which the full bobbins A of the rover 1 are doffed onto the conveyor 6 by the simultaneous pipe changer 11.
As disclosed in Japanese Patent No. 181330, a mobile doffing machine may be used to doff each group. Furthermore, the guide rail 41 at the roving frame 1 position,
41 may be arranged perpendicular to the longitudinal direction of the machine base. Furthermore, in the above embodiment, spinning machines for the front and rear rows are prepared and installed in the creels of the respective spinning machines, but the drive systems for the R side and L side of the spinning machine are separate, and the spinning machines for one side are connected 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 the spinning creels may be configured to load full bobbins in the front and rear rows.

Effects of the Invention As described above, in the present invention, before the roving frame,
The full bobbins in the rear row are doffed onto the bobbin holders for the front and rear rows of the conveyor using a doffing machine, and the full bobbins in the front and rear rows attached to the bobbin holders for the front and rear rows are transferred, respectively. By using a device, the bobbin carriers for the front and rear rows can be attached to the bobbin carriers for the front and rear rows, and the bobbin carriers for the front and rear rows can be moved to the spinning creels for the front and rear rows, respectively. It is possible to easily distinguish and transport full bobbins to the spinning creel for the front row, and full bobbins for the rear row to the spinning creel for the rear row, and as a result, it is compatible with the spinning creel that loads full bobbins in the front and rear rows. By setting the spinning conditions of the draft mechanism to a value suitable for the roving thickness of full bobbins in the front and rear rows, it is possible to reduce unevenness in yarn thickness caused by differences in the front and rear rows of the roving machine. The yarn quality can be improved. Further, as mentioned above, the full bobbin of the roving frame is first doffed onto the bobbin holder of the conveyor by the doffing machine, and then the full bobbin held by the bobbin holder is transferred to the bobbin conveyor by the transfer device. The structure of the doffing machine can be simplified and operation can be stabilized even when a full bobbin is attached to the bobbin conveyor at pitch intervals that correspond to the intervals of the bobbin hooks in each row of the spinning creel. Furthermore, full bobbins can be mounted on the bobbin transport body at one location, allowing flexibility in the layout of the transfer path of the bobbin transport body.

[Brief explanation of the drawing]

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. 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; Fig. 7 is an explanatory diagram showing the conveyance path of the bobbin conveyor, Fig. 8 is an explanatory diagram of the switch, Fig. 9 is an explanatory diagram showing the spare rail of the spinning machine, and Fig. 10 is an explanatory diagram of the creel rail section of the spinning machine. FIG. 11 is a side view of the bobbin carrier, and FIG. 12 is a plan view of the bobbin carrier. 1... Rover, 3... Flyer, 6... Conveyor, 7... Moving body, 9... Pezug (bobbin holder), 11... Simultaneous tube changing machine (doffing machine), 27, 28
...Bobbin conveyor, 43P...Spinning creel, 6
9...Transfer device.

Claims (1)

[Claims] 1 Conveyors are arranged in parallel in front of a roving frame in which flyers are arranged in a staggered manner in the front and rear rows, and full bobbins corresponding to the flyers in the front and rear rows can be attached to the moving body of the conveyor, respectively. There is also a bobbin holder in front of the roving machine.
A doffing machine capable of doffing the full bobbins of the rear row to the bobbin holders for the front and rear rows, respectively, is installed, and the full bobbins of the front row can be mounted above one end of the conveyor. A front row bobbin conveyor and a rear row bobbin conveyor capable of mounting the full bobbins of the rear row are movably arranged, and one end of the conveyor is equipped with a full bobbin holder attached to the front and rear row bobbins. A doffing and conveying device for full bobbins, characterized in that a transfer device is disposed so that the bobbins can be attached to the bobbin conveyors for the front and rear rows, respectively.