JPH0523587Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention relates to a device for winding up a full bobbin doffed from a spinning machine such as a spinning machine or a twisting machine.

(Prior art) Generally, when the doffing work in this type of spinning machine is performed by an automatic doffing machine that moves along the spindle row, the bobbin is pulled out from the spindle by a full bobbin lifting device equipped on the doffing machine. The thread connected between the raised full bobbin and the spindle is cut by a cutter equipped on the doffing machine. At this time, if the cutting position is set close to the full bobbin, the length of the tail thread of the full bobbin will be short. However, on the contrary, the length of the yarn end on the spindle side increases, and when the machine is restarted, this yarn end is swung around by the high-speed rotating spindle, causing yarn breakage at a large number of spindles. Therefore, the cutting position by the cutter is set at a position where the length of the yarn end on the spindle side is as short as possible so that the yarn breakage when restarting the machine is minimized. For this reason, the tail thread of the full bobbin after cutting is relatively long, and this long tail thread is doffed while hanging below the full bobbin, and the full bobbin is transported to the next winding process. During conveyance, the long tail yarn gets caught on a conveyor or gets entangled with other full tube yarns, gradually unraveling and becoming even longer. and,
When a full bobbin with the tail yarn unwound is supplied to the automatic winder in the winding process, it becomes impossible to take out the full bobbin, and the bobbin is discharged from the automatic winder as a defective yarn. Therefore, not only does the efficiency of the automatic winder decrease, but also the tail thread of the discharged full bobbin must be manually cut to an appropriate length that can be picked out and then fed to the automatic winder again.

As a means to eliminate this inconvenience,
Publication No. 38470 discloses that a pipe thread is pulled up from a spindle of a spinning machine, etc. by a pipe gripping tool of an automatic doffing machine, and the thread connected to the spindle is cut by a cutter before passing through. A tail thread processing device for an automatic doffing machine equipped with a flexible sliding member that comes into contact with the pipe thread in the middle of the descending or falling path, catches the cut thread end of the pipe thread, and attaches it to the pipe surface. is proposed.

(Problem to be solved by the invention) However, in the conventional device, the yarn moves in the axial direction of the yarn with its surface in contact with the sliding body, so the yarn on the surface of the yarn becomes fuzzed or damaged. There is a risk that it may stick. Also, depending on the arrangement position of the sliding body, the tail thread is located on the opposite side of the sliding body when the pipe thread and the sliding body come into contact, so that the attachment of the pipe thread to the trunk is ensured. There is also the problem that there may be cases where there is no such information.

Structure of the invention (means for solving the problem) In order to solve the above-mentioned problem, this invention transports a peg tray in which full bobbins doffed from spinning machines such as spinning machines and twisting machines are inserted. A sliding contact member is provided in the transfer path of the conveyor to transfer the full bobbin vertically in a substantially horizontal state, and contacts the full bobbin or a part of the peg tray at the location to rotate the full bobbin in the yarn winding direction. has been established.

(Function) In this invention, a full bobbin doffed from a spinning machine, such as a spinning machine or a yarn twisting machine, is transported by a conveyor while being inserted into a peg tray. When the full bobbin reaches a point where it moves vertically in an almost horizontal state during transport by the transport conveyor, the transport conveyor moves the full bobbin or a part of the peg tray into contact with the sliding body provided at that location. In order to be transferred, the full bobbin is rotated in the direction of winding the yarn end alone or together with the peg tray, so that the tail yarn is reliably wound onto the full bobbin.

(Example 1) Hereinafter, this invention was carried out continuously along the frame of a spinning machine, and empty bobbins placed on a conveyor device extending below the spindle rail were taken into a pipe changing machine together with the peg tray. A first embodiment, which is embodied as a pipe changing machine for performing changing work, will be described with reference to FIGS. 1 to 6. As shown in Figures 2 and 3, pipe switching machine 1
is supported so as to be able to run along the spinning frame frame via a rail 2 fixed to the spinning frame frame and guide rollers 4 and 5 that engage with a guide rail 3.
The rail 2 is moved along the rail 2 by the action of a screw roller 7 that engages with pins 6 protruding from the rail 2 at predetermined intervals. A tray guide 9 is provided on the upper surface of the guide rail 3 in parallel with the spindle rail 8.
is extended, and a belt 10 of a belt conveyor is arranged to run inside the tray guide 9. A spindle 1 is placed on the belt 10.
A peg tray 12 having a diameter approximately equal to the pitch of 1 and having pegs 12a protruding from its upper surface is placed so as to be movable integrally with the movement of the belt 10. Prior to the tube change operation, a peg tray 12 in which an empty bobbin E is inserted into a peg 12a is placed on the belt 10 in a state substantially corresponding to the spindle 11.
In addition, the tray guide 9 has a side edge 9 on the pipe changer 1 side so that the peg tray 12 can be taken in and out from the side.
a is formed low.

At the bottom of the tube changer 1, there is a peg tray intake device 13 that takes in the peg tray 12 with empty bobbins placed on the conveyor into the tube changer 1, and a peg tray 12 with a full bobbin F inserted onto the conveyor. The peg tray delivery device 14 and pipe changer 1
These pipes are placed both forward and backward in the direction of movement during pipe replacement work. On the front side of the tube changing machine 1 (the side facing the spinning machine), the spindle 1 is loaded with the empty bobbin E taken in together with the peg tray 12 by the peg tray taking-in device 13 inserted into the peg tray 12.
The peg tray 12 from which the empty bobbin E has been removed is transported to a position above and corresponding to the full bobbin F inserted on the spindle 11, and the peg tray 12 from which the empty bobbin E has been removed is transported to a position approximately at the same height as the lower part of the spindle 11. A torsion conveyor 15 is provided as a conveyor which serves to convey the peg tray 12 into which a full bobbin F is inserted to the peg tray delivery device 14. Further, in the center of the tube changer 1, there is an empty bobbin for extracting the empty bobbin E that has been transported above the full bobbin F from the peg 12a and inserting the empty bobbin E into the spindle 11 from which the full bobbin F has been pulled out. Extraction/insertion device 16 and spindle 1
1. Pull out the full bobbin F from 1 and place it in the peg tray 1.
A full bobbin ejection/insertion device 17 for inserting into the second peg 12a is provided.

As shown in FIGS. 2 and 3, the torsional conveying device 15 has two parts in which the belt 18 for transporting the peg tray 12 runs in parallel at almost the same height as the tray guide 9 and at the same height as the lower part of the spindle 11. The part that runs parallel in the horizontal position and the spindle 11
A portion running parallel to the spindle rail 8 above the full bobbin F inserted above, and a peg tray 12 into which the doffed full bobbin F is inserted.
It is wound between a large number of guide pulleys 19 so as to have a part for transporting a full bobbin downward in an almost horizontal state, and is fitted onto the drive shaft of a motor 20 disposed at the center of the lower part of the machine base. Drive pulley 2
1 and is driven so that the portion that runs parallel to the tray guide 9 is the same as the running direction of the pipe changer 1 during pipe change. Further, a pair of linear guide members 22 are arranged along the traveling route of the belt 18 so as to sandwich the pegs 12a of the peg tray 12 and to press and bias the peg tray 12 toward the belt 18 side. That is, this torsion conveying device 15 exhibits the same effect as the device disclosed in Japanese Patent Application Laid-Open No. 62-180882, and the peg tray 12 is moved by the belt 18 by the guide member 22.
Hold the belt in pressure contact with the belt 1.
By driving the belt 8, the peg tray 12 is moved together with the belt 18. Therefore,
As shown in FIG.
By arranging the peg tray 12 in a twisted state, the attitude of the empty bobbin E or the full bobbin F inserted in the peg tray 12 can be freely changed.

At the location where the full bobbin F of the torsional conveyance device 15 is transferred downward in a substantially horizontal state, the location contacts the lower part of the full bobbin F moving together with the peg tray 12 and rotates the full bobbin in the yarn winding direction. A sliding contact body 23 for this purpose is arranged parallel to the belt 18. The sliding contact portion 23a of the sliding contact body 23 is made of urethane rubber or the like having high frictional resistance.

Next, the operation of the apparatus configured as described above will be explained. When the spinning machine stops in response to a full tube command, the tube changing machine 1, which had been stopped at the end of the frame, starts moving at a constant speed along the rail 2, and the motor 20 of the torsional conveyance device 15 is driven to rotate the belt 18. Start moving in the direction of the arrow in Figures 2 and 3. and,
When the peg tray intake device 13 reaches a position corresponding to the empty bobbin E placed on the tray guide 9 as the tube changer 1 travels, the top of the empty bobbin E engages with the engaging member 24. As the empty bobbin E tilts toward the spinning machine, the lower surface of one side of the peg tray 12 is positioned above the side edge 9a of the tray guide 9, and as the tube changer 1 moves, the guide plate 13
a, the peg tray 12 is guided to a position where it engages with the belt 18 of the torsion conveying device 15, as shown in FIG. When the lower surface of the peg tray 12 engages with the belt 18, the peg tray 12 is moved integrally with the belt 18, and by the action of the guide member 22, its posture is changed so that the empty bobbin E becomes almost horizontal, and the peg tray 12 is moved integrally with the belt 18. It is transported above the transfer machine 1. Similarly, the tray guide 9
Pezg tray 12 with empty bobbin placed on top
are sequentially introduced into the pipe changer 1.

Then, the empty bobbin E taken into the tube changer 1
The peg tray 12 with the inserted pegs is transported above the empty bobbin extracting/inserting device 16 at a higher speed than the running speed of the tube changer 1, and at the same position, four empty bobbins E are simultaneously extracted from the pegs 12a, and the full bobbins are The full bobbin F is inserted into the lifted spindle 11 by the action of the lifting and inserting device 17 . Further, the peg tray 12 from which the empty bobbin E has been extracted is conveyed to a position corresponding to the spindle 11 by the twisting conveyance device 15, and the full bobbin F, which has been extracted from the spindle 11, is inserted into the peg 12a by the full bobbin extracting and inserting device 17. be done.

The peg tray 12 with the full bobbin F inserted therein is transported while changing its posture by the torsional transport device 15, and the full bobbin F is held almost horizontally when passing through a position corresponding to the sliding body 23. Move downwards. At this time, as shown in FIGS. 1 and 6, the bottom of the full bobbin
a, and since the frictional resistance of the sliding contact portion 23a is large, the full bobbin F is rotated in the direction of the arrow in FIGS. 1, 2, and 6 as it moves downward. Since this direction of rotation is the same as the thread winding direction of the full bobbin F, the tail thread of the full bobbin F is reliably wound as the full bobbin F rotates. Further, as in the device of this embodiment, the sliding contact portion 23a of the sliding contact body 23 comes into contact with the lower part of the full bobbin F.
When giving rotation to
The length of 3a can be shortened. Furthermore, since the sliding contact body 23 comes into contact with the lower part of the full bobbin F, it also acts to prevent the full bobbin F from being pulled out from the peg 12a due to vibrations of the tube changer 1 or the like when the full bobbin F moves in a horizontal state.

Then, the full bobbin F with the tail thread wound thereon is transported together with the peg tray 12 by the torsion transport device 15 to a position corresponding to the peg tray delivery device 14 while changing its posture, and at the same position is guided by the guide plate 14a to guide the tray. Passed on to 9. Thereafter, in the same manner, the empty bobbin E on the conveyor and the full bobbin F on the spindle 11 are sequentially replaced, and the tube change operation is performed.

(Embodiment 2) Next, a second embodiment in which this invention is embodied in a conveying device for conveying a full bobbin from a spinning process to a winding process will be described with reference to FIGS. 7 to 9. FIG. 7 has almost the same configuration as that disclosed in Japanese Patent Application Laid-Open No. 62-180881, and shows a conveying line 26 for conveying the full bobbin F doffed by the spinning machine 25 group to the next process (winder process). A device is shown that is installed on the ceiling and connects each spinning frame 25 and a conveyance line 26 with a movable vertical conveyor 27. In this embodiment, as shown in FIGS. 8 and 9, the vertical conveyor 27
A sliding contact body 23 is disposed in the middle of the bobbin F so as to be able to come into contact with the lower part of the full bobbin F. Therefore, in this embodiment, the full bobbin F doffed from the spinning machine 25 is
Conveyance line 2 to the next process by vertical conveyor 27
6, the lower part of the sliding contact body 2
3, the thread is rotated in the same direction as the thread winding direction of the full bobbin F, and the tail thread is reliably wound onto the full bobbin F.

Note that this invention is not limited to the two embodiments described above; for example, as shown in FIG.
In the embodiment, instead of engaging the sliding member 23 with the full bobbin F, it may be provided so as to contact the outer periphery of the peg tray 12.

Effects of the invention As detailed above, according to this invention, the full bobbin doffed onto the peg tray is rotated in the winding direction while the full bobbin is being transported together with the peg tray to the next winding process. This ensures that the tail thread is wound securely.
The tail yarn is not unwound in the process of transporting a full bobbin, and excellent effects are achieved in that the discharge of defective yarn in the automatic winder in the winding process can be reduced and the yarn can be reliably taken out.

[Brief explanation of the drawing]

Figures 1 to 6 show the first embodiment, with Figure 1 being a perspective view of the main parts, Figure 2 being a schematic perspective view of a pipe changer equipped with the device of this invention, and Figure 3 being the same. 4 is a partial perspective view showing the operation of the twisting conveyance device, FIG. 5 is a schematic perspective view showing the operation of taking in an empty bobbin, and FIG. 6 is a sectional view showing the contact state between the sliding body and the full bobbin. , Figures 7 to 9 show the second embodiment, in which Figure 7 is a schematic perspective view showing the relationship between the spinning machines and the conveyance line, Figure 8 is a side view of the vertical conveyor, and Figure 9 is a side view of the vertical conveyor. FIG. 10 is a cross-sectional view of the main part of a modified example. 12... Peg tray, 15... Twisted conveyor as a conveyor, 18... Belt, 22...
...Guide member, 23...Sliding contact body, 23a...Sliding contact portion, F...Full bobbin.

Claims (1)

[Scope of utility model registration request] A place is provided in the transfer path of the conveyor that conveys the peg tray in which full bobbins doffed from a spinning machine, a spinning machine, etc. A tail thread winding device provided with a sliding body that contacts a full bobbin or a part of a peg tray to rotate the full bobbin in the thread winding direction.