JPS5898435A - Automatic doffing method in roving frame - Google Patents

Abstract

PURPOSE:To make it possible to carry out the doffing smoothly, by running an automatic doffer and a conveyor belt intermittently along the front of a roving frame, changing full bobbins with empty bobins, delivering the full bobbins from the coveyor belt at one end of the roving frame, and feeding the empty bobbins to the coveyor belt. CONSTITUTION:In front of a roving frame 1, a conveyor belt 11 and an automatic doffer 10 running intermittently along the roving frame 1 are provided, and empty bobbins are pulled out of the respective spindles in the roving frame 1 by the automatic doffer 10 while running intermittently along the front of the roving frame 1 and placed on the conveyor belt 11. Empty bobbins are simultaneously pulled out of the conveyor belt 11 and inserted in the respective empty spindles. The conveyor belt 11 is run at a speed double the running speed of the automatic doffer 10, and the full bobbins are received from the conveyor belt 11 by a full bobbin discharging machine 7 at one end of the roving frame 1 and then transferred to a full bobbin receiving cart 8. The empty bobbins are transferred from an empty bobin holding cart 6 onto the conveyor belt 11.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention utilizes a top-supporting seven-layer roving machine to transport full yarn from a roving frame equipped with a means for lowering the bobbin rail to a position where the full yarn leaves the flyer after the yarn is full. In the method of automatically taking out the bobbin and automatically inserting an empty bobbin in its place, a conveyor belt and an automatic tube changer are intermittently run along the roving machine, and the conveyor belt and automatic tube changer are operated in conjunction with each other. This invention relates to an automatic thread change method for a roving frame, which transfers a full bobbin on a pobbin rail onto a conveyor belt, and also transfers an empty bobbin on a conveyor belt onto a pobbin rail.

Due to the recent trend toward large packaging, roving machines are producing larger and heavier full-tube yarns. Therefore, the work of changing the tube, that is, unloading the full yarn from the bobbin rail,
The work of inserting an empty bobbin instead is quite a heavy labor for the operator. For this reason, various attempts have been made to automate pipe switching operations, but all of them have many problems, and the reality is that it is difficult to put them into practical use.

Automatic tube changing methods can be roughly divided into two types: one in which the bobbin rail of the roving machine itself operates primarily for tube changing work, and the other in which the automatic tube changer operates from outside the roving machine.One is the method of the present invention. belongs to the latter method. When using an automatic tube changer, a well-known type is a conveyor belt placed in front of the roving frame over its entire length, and an automatic tube changer installed along the entire length of the roving frame. An automatic tube changing machine was installed in front of the roving machine and changed the tube between the conveyor belt and the bobbin rail for all spindles at the same time.The disadvantage of this type is that the roving machine !
Since each automatic tube changer is installed exclusively, it is expensive, and the automatic tube changer occupies a large space, which restricts the work path for each worker and increases the space occupied by the roving process. Therefore, it is also inconvenient that the full yarn on the conveyor becomes an obstacle to troubleshooting when the roving machine restarts operation.

In addition to making it possible to run intermittently, the conveyor belt is also run intermittently in conjunction with this, and basically the leading part of the automatic pipe changer takes out the full yarn onto the conveyor belt, and the trailing part takes out the empty bobbins on the conveyor. is inserted onto the roving machine bobbin rail, and when the work on the conveyor is completed, the full yarn on the conveyor will also be completely unloaded, so the full yarn will become an obstacle to troubleshooting work when the roving machine restarts operation. There is no such thing. Since the automatic tube changing machine does not contain empty bobbins or full yarn, it has the advantage that it can be made smaller and can be used for multiple roving machines.

One embodiment of the method according to the invention, which is illustrated in the drawings, will now be described.

As shown in FIG. 1, rail groups 2, 3 and 4 are laid on the floor surface at both ends of the roving frame 1, the rails 2) are equipped with a cart 6, and the rail 3 is equipped with a full yarn unloading machine 7. On the rails 4, cars 8 with full pipes and not yet stored are mounted so that they can run. A rail 9 is also laid in front of the revolving frame 1, so that an automatic tube changer 10 mounted on the trolley 6 can run. A conveyor belt 11 is stretched over almost the entire length of the roving frame between the roving frame 1 and the W changing machine 10 and the running rail 9.

Such a configuration means that the carriage 6 and the tube changer 10 are installed along the 2.3.4 t rail group common to the multiple roving frames 1.
The full-tube yarn unloading machine 7 and the full-tube unstorage car 8 run as if they were one unit and stop at a predetermined position of the roving frame 1 that requires a tube change, and the tube change machine 10 enters the full-tube roving machine. This means that pipe changing work can be performed between the bobbin rail 12 and the conveyor belt 11.

The basic idea of the present invention is that the tube changer 10 itself does not store empty bobbins and full yarns, but serves as an intermediary for tube changes between the bobbin rail 12 and the conveyor belt 11. Empty bobbins are supplied from one end of the conveyor belt 11, and full yarn is discharged from the other end.

In the illustrated example, the empty bobbin supply device 13 is equipped with a 6t truck, and the conveyor belt 11 does not move.
They are inserted one by one into the begs 14 of the conveyor belt 11. That is, as shown in FIG. 2 and FIG.
Empty bobbin B, which is intermittently sent between 6 and a regulating plate 17, comes off the bottom plate 18 at the frontmost position and is received on the opening/closing plate 19, waiting for the arrival of the bobbin 14. When the position of the peg 14 coincides with the frontmost bobbin B, the opening/closing plate 19 rapidly rotates around the shaft 20 and releases the support of the empty bobbin B, so that the bobbin falls, is inserted into the peg 14, and is transferred to the conveyor. As the belt 11 moves, the empty bobbin B moves away from the empty bobbin supply device 13 in an upright state. This operation will be performed for each bed 14.

In addition, as described in #J, the empty bobbin B on one peg 14 is fed onto the bobbin rail 12 from the automatic tube changer 10).
Instead, the full yarn C on the bobbin rail 12 is inserted into the vest 14, so the pitch of the vest 14 is the same as that of the bobbin holder 21 on the bobbin rail 12.

On the other hand, the full yarn unloading machine 7 located at the end of the conveyor belt 11 in the running direction is equipped with a full yarn gripper 22 that is movable between the end of the conveyor belt 11 and the unfilled car 8. 1. For example, when carrying out four full-tube yarns C on the conveyor belt 11, the four gripping tools provided while maintaining the pitch of the begs 14 are used to grasp the full-tube yarns, first, and then the gripping body 22.
is displaced above the unfilled tube storage car 8 and descends to insert the full tube yarn C into the bed 23 provided in the storage car 8. By repeating this operation, the full yarn C is transferred to the storage car 8. Generally, full threads are stored in car 8.
In order to accommodate a large number of yarns, the pegs 23 are arranged at a small pitch to the extent that the full yarns do not come into contact with each other. In this case, the gripping part of the gripper 22 is moved from the pitch of the bed 14 during the unloading operation.

It has a mechanism (not particularly shown) that allows relative movement to match the pitch of the bed 23 of the storage car 8.

Now, in the main body of the roving frame 1, when the full yarn C is formed,
The bobbin rail 12 is lowered, and the upper frame 241 is supported by the upper frame 241. The full tube thread C is completely separated.

In order to take out the full tube yarn C in this state and insert the empty yarn B in its place, the automatic tube changing machine 10 enters, guided by the floor rail 9 and the rail 25 in front of the -L section frame 24. In the case of the present invention, the automatic tube changer 10 consists of two parts, one of which is the take-out part 10 located on the traveling direction side.
'r: Yes, and the other one is the insertion part 10'' located on the counter-traveling direction side.In other words, the ejection part 10' is located on the bobbin rail 1
The operation should be to take out the full tube thread C on top of 2.

Specifically, as shown in FIG. 4, the take-out lever 27' of the take-out mechanism 26' is constructed with a parallel four-bar link mechanism.
can be displaced between the bobbin rail 12 and the conveyor belt 11 while maintaining a horizontal state.

Moreover, the fixed link portion 28' of the parallel four-bar linkage mechanism is about to be able to move up and down along the guide 30' by rotation of the pinion 29'. Of course, the ejection lever 27
The pitch of ' is the same as that of the bobbin holder 21 and the bet 14. As a result, the take-out lever 27' is attached to the bobbin rail 12.
It can be easily engaged with the collar 31 formed on the bobbin of the full yarn C above, and in the engaged state, the bobbin rail 12
The full yarn C can be separated from the upper bobbin holder 21, and the full yarn C can be easily inserted into the bed 14 on the conveyor belt 11.

In order to insert an empty bobbin B onto the bobbin rail 12 from which the full yarn C has been taken out by the take-out part 10', an insertion part 1σ' following F runs as shown in FIG.

That is, since the insertion mechanism 2C' has almost the same configuration as that of the take-out part 10', the insertion lever 2γ' lifts up the empty bobbin B on the conveyor belt 11, advances to the upper part of the bobbin rail 12, and then descends to remove the bobbin. It works to insert the empty pot bin B into the holder 21.

As shown in FIG. 6P, the automatic pipe changing machine 10 that has completed the pipe changing work should suppress the protruding state of the ejecting lever 27' and the inserting lever 21' as much as possible (and assume a retreating position).
It returns to the trolley 6 (Fig. 1). On the other hand, the conveyor belt 11 goes around once and when the pipe change work is completed, the belt 14
Since the group is located on the lower surface, the presence of the support stand 32 for receiving the upper surface running section has the advantage that the conveyor belt 11 can also be used as a stepping stone for the worker during normal operation of the roving frame 1. be.

Here, the steps of the pipe switching operation which constitute the main part of the present invention will be explained with reference to FIGS. 8-1 to 8-18.

When the roving machine 1 commands full pipes, the trolley 6 carrying the automatic pipe change fi1e runs on the rails 2 and stops at a fixed position.
On the other hand, a full yarn unloader 7 arrives from above the rail 3 and stops at a fixed position. A car 8 whose tubes are not full is also prepared on the rail 4. Then, the tube changer 10 leaves the carriage 6 and enters the front side of the roving frame 1 and the conveyor belt 11. In the case of this embodiment, one staff is made up of four full pipe threads C, and the pipes are changed one by one, and the take-out section 10' located on the running direction side of the main pipe changing machine 10 is the first staff. Stop to match S1. At the same time, conveyor belt 11
The first staff 14 group provided thereon stops at a position coincident with the first staff S1. That is, the empty bobbin supply device 13 does not supply the empty bobbin B to the bed 14, and the conveyor belt 11 is only running too much (8th
-1 figure).

In this state, the take-out section 10' works and the take-out lever 21' collects the full yarn C from the roving machine pobbin rail 12! lJout
,, Insert peg 148 of conveyor belt 11 (8th
-2 figure).

Next, the pipe changing machine 10 travels for one staff, and
The conveyor belt stops at the position where it coincides with the second staff 752, and the conveyor belt 11 and 2 staffs, that is, the full yarn C taken out in the previous first staff S1 is transferred to the third staff.
Drive until the sea urchin matches the staff S3. In this case, the supply of empty bobbins B to the conveyor belt 11 is also started, and the first group of empty bobbins B stops at the same time as the first staff S1 (FIG. 8-3).

In this state, the take-out section 10'
At the same time, the insertion part 1σ' replaces the empty bobbin B on the conveyor belt 11 onto the bobbin rail 12 of the first staff S1 (No. 8-4).
figure).

Thereafter, the pipe changer 10 travels for one staff, and the conveyor belt 11 travels for two staffs (Figure 8-5).
, take out the full yarn C of the third staff S3, and insert it into the bed 14 which has finished supplying the same-character bobbin to the pobbin rail 12. At the same time, the empty bobbin B is inserted into the second staff S2 (Fig. 8-6).

By repeating such an operation, the full yarns C are arranged on the conveyor belt 11, and the full yarns C are gradually brought closer to the other end of the full yarn discharge 11!7^.

When the first full yarn C (corresponding to the first staff S1) on the conveyor 11 passes through the final stuff Sn, the full yarn C corresponding to the second staff 32 coincides with the Sn staff and is carried out. The full yarn gripping body 22 of the machine T operates to take out the full yarn Cf corresponding to the first staff S1 (FIG. 8-7).

1m removal! 7 grips and takes out the full yarn C, and when it is taken out, it is inserted into the adjacent peg 23 of the car 80 that is not full (FIG. 8-8).

Here, the travel distance of the primary conveyor 11 is changed to travel for one staff each instead of the previous travel for two staffs. That is, when the full tube yarn C corresponding to the second staff S2 reaches the take-out position by the carry-out 11!7, the conveyor belt 11 temporarily stops, and at the same time, the tube changing machine 1
0 also travels for one staff and then stops (Figures 8-9). When the yarn is stored in the storage car 8 (FIGS. 8-10), the conveyor 11 travels again by one staff and reaches the position where the full yarn C corresponding to the third staff S3 is taken out. From this stage onwards, since the bed 14 no longer exists at the starting end of the conveyor belt 11, empty bobbins B are no longer fed onto the conveyor 11 (Fig. 8-1'1). While the unloading machine 1 stores the full yarn equivalent to the eighth staff S3t, the tube changer 10 performs the tube change operation (FIGS. 8-12).

When the pipe changing work is nearing the end and only the full pipe thread C of the final staff Sn is left on the pobbin rail 12, the full pipe thread C corresponding to 5 (n-〇), which is one line ahead of the final staff, is placed at the take-out position 9. 8-18) and is stored in the storage car 8, the thread changing machine 10 transfers the full thread of the last staff Sn to the conveyor 11, and also transfers the full thread of the last staff Sn to the conveyor 11.
Insert an empty bobbin into Stn-1) (Figure 8-14)
.

Next, the pipe changing machine 10 and the conveyor belt 11 travel one staff each time, and the last fully piped yarn C reaches the take-out position (Fig. 8-15), and when the storage is finished, the conveyor 11 travels one more staff. Last empty bin B on conveyor
reaches the position corresponding to the final staff Sn (No. 8-16)
figure).

When the pipe changing machine 10 finishes inserting the last empty bin B (FIG. 8-17), it returns to the first truck 6, and the conveyor 11 continues until the top bin 14 goes around to the bottom. Run (Figure 8-18).

In this manner, the tube change operation is completed, and the cart 6 and the full yarn unloading machine 7 travel toward another full tube roving frame 1 or retreat to the standby position. The full yarn gripping body 8 is carried to the next spinning process.

The above embodiment is one embodiment of the method of the present invention, and the number of rods per staff may be increased or decreased. Various configurations are possible. The same applies to the method of carrying out and storing the full yarn. In the above embodiment, the full yarn unloading machine 7 can take out only one stuff of full yarn, so even though the conveyor belt 11 runs substantially twice as much as the automatic tube changer 10, it only takes out one staff. Once the conveyor 11 starts taking out the full yarn, it only travels one staff length after that.
If the full yarn is carried out two staffs at a time, the traveling distance of the conveyor 11 can be twice that of the continuous yarn changer 10.

According to the method of the present invention, empty bobbins are supplied to the conveyor belt and full yarn is carried out while the automatic tube changer is intermittently running, and when the automatic tube changer completes running, the empty bobbins and full yarn are removed from the conveyor belt. Since all the threads are lost, there is almost no need for pre-preparation or post-processing for tube changes, which can substantially shorten the time required for tube changes. Since the full yarn is taken out and the empty bobbin is supplied at the same time, there is an advantage that the tube changing time can be shortened and machine standstill losses can be reduced. Furthermore, when restarting operation, troubles with winding the thread tend to occur.

The conveyor belt does not pose any obstacle; rather, it can be used advantageously as a stepping stone for workers.

[Brief explanation of the drawing]

The figures show an embodiment of the method of the present invention, in which Fig. 1 is a perspective view showing the arrangement of related devices, Fig. 2 is a front view of the empty bobbin supply device, Fig. 3 is a plan view, and Fig. 4 is an automatic tube feeder. FIG. 5 is a side view showing a full yarn take-out device of the automatic tube changer, and FIG. 5 is a side view showing an empty bobbin insertion device of the automatic tube changer. FIG. 6 is a side view showing the state in which the pipe changing operation is completed, and FIG. 7 is a perspective view showing the operating state of the take-out lever etc. with respect to the bobbin.
FIGS. 8-1 to 8-18 are schematic plan views showing sequential pipe change operation steps. 7...Full yarn unloading machine 10...Automatic tube changing machine 10'...Takeout section 1σ'...Insertion section 11...Belt conveyor 12...Bobbin rail 13...Empty bobbin supply Device 14... Betz 21... Bobbin holder Patent applicant Toyota Industries Corporation Drawing engraving (no change in content) Figure 2 Figure 3 Procedures Amendment (Method) 1. Display of the case 1988 Patent Application No. 197552 2, Name of the invention Automatic tube change method for Rover machine 8, Person making the amendment Relationship to the case Patent applicant August 80, 1988 (Date of dispatch)

Claims (1)

[Claims] A top-supported flyer is used to automatically take out the full yarn from a roving frame equipped with a means for lowering the pobbin rail to a position where the full yarn is removed from the flyer after the yarn is full, and to replace it. In the method of automatically inserting an empty bobbin, a conveyor belt and an automatic tube changer are respectively run intermittently along the roving frame, and the substantial conveyor belt travel distance at one time is twice that of the automatic tube changer. The conveyor belt is doubled so that empty bobbins are supplied from the opposite end of the conveyor belt in the running direction, and full bobbins are carried out from the end of the conveyor belt in the running direction. The automatic tube changer is characterized in that it transfers full bobbins on the pobbin rail of the roving frame onto the conveyor belt on the running direction side, and transfers empty bobbins on the conveyor belt onto the pobbin rail on the opposite side in the running direction. Tube change method on a roving machine.