JPH0320489B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a peg tray conveying device used in a spinning process, particularly in a spinning machine and an automatic pipe changer using peg trays.

(Prior art) Various types of automatic tube changing devices for spinning machines have been proposed at present, but among them, an automatic tube changing device compatible with a peg conveyor that uses a peg tray to convey bobbins or pipe threads is one of them. Compared to conventional devices, it is currently the most suitable method because it has a relatively simple mechanism and the characteristics of the peg tray can be used to transport bobbins or tube yarn between the spinning machine and the doubling machine. It is attracting attention as an automatic pipe switching device.

Figure 12 is an explanatory diagram of an automatic pipe changer that is a multi-spindle (12-spindle) simultaneous pipe change system manufactured by Howa Kogyo Co., Ltd., which has been put into practical use as an automatic pipe changer compatible with PETZ conveyors. The figure is a schematic diagram for explaining an automatic pipe switching device that uses a single spindle pipe switching system.

In the figure, 1 is the spindle rail of the spinning machine, 2 is the under-stand conveyor installed below the spindle rail 1 and parallel to the spindle rail 1, 3 is the peg tray, 4 is the spindle installed in parallel to the spindle rail 1, 5 is the bobbin, 6 7 is the pipe thread, 7 is the automatic pipe change device of the multi-spindle simultaneous pipe change method, 8 is its cot catcher, 9 is the bobbin catcher, and 10 is the automatic pipe change device of the single spindle pipe change method. .

(Problems to be solved by the invention) However, the above-mentioned conventional automatic pipe switching device 7,
10, the long distance between the spindle rail 1 and the under-table conveyor 2 is increased vertically by the bobbing gripper and the thread gripper (not shown), as shown by the solid line arrow A or the dotted line arrow B, respectively. Since the stroke must be made, there is a problem in that it takes a long time to replace the bobbin 5 and the thread 6, resulting in poor efficiency.

The system shown in FIG. 12 replaces multiple spindles (10 to 12 spindles) at the same time in order to shorten the replacement work time, but this method has the problem of increasing the size of the pipe changing device 7. At the same time, in the multi-spindle system, the accuracy of correspondence with the pitch of the spindle 4 is an important factor, which has led to problems such as increased manufacturing costs and difficult maintenance management.

(Means for Solving the Problems) In order to solve the above-mentioned problems, in the present invention, in a spinning machine and a pipe changing device that moves along the spindle rails of the spinning machine, a spindle is installed below the spindle rails of the spinning machine. An under-stand conveyor for transporting peg trays is provided parallel to the rail, and the pipe changer side of this under-stand conveyor is open so that the under-stand conveyor runs close to and parallel to the under-stand conveyor. A belt for transporting a peg tray, which has a function of raising and lowering the peg tray while twisting, and a part running parallel to the spindle rail in close proximity to the spindle rail, and a belt arranged along this belt while twisting. A pipe changing device is equipped with a belt conveyor-type torsional transport device for peg trays made of elastic guides, and pipes are changed precisely between the spindle rail and a peg tray transport device that runs close to and parallel to the spindle rail. This constitutes a transport device for peg trays in a pipe changing device of a spinning machine.

(Function) As described above, the device of the present invention is equipped with a belt conveyor-type torsional conveyance device for peg trays, which is made up of a belt for conveying peg trays and an elastic guide arranged in a twisted manner along this belt, in a tube changing device, and Since the pipe is changed between the spindle rail and the peg tray conveying device that runs close to and parallel to the spindle rail, the moving distance of the bobbing gripper and the thread gripper when changing the pipe is reduced compared to the conventional one. It can be significantly shortened. Therefore, according to the present invention, the time required for replacing the bobbin and the pipe yarn is shortened, and as a result, the efficiency of the pipe changing device can be significantly improved.

In addition, as mentioned above, by bringing the spindle rail and the belt conveyor of the peg tray close together, the pipe change mechanism can be operated regardless of whether it is an intermittent type or a continuous type, or whether it is a multi-spindle simultaneous pipe change type or a single-spindle pipe change type. , it can be significantly smaller and lighter. Therefore, according to the present invention, the manufacturing cost can be reduced, the speed can be easily increased, and the degree of freedom in design can be increased.

Furthermore, in the present invention, an under-stand conveyor for conveying peg trays is provided below the spindle rail of the spinning machine, parallel to the spindle rail, and the tube changing device side of this under-stand conveyor is opened so that the under-stand conveyor is close to the under-stand conveyor. According to the present invention, since the pipe changing device is provided with a belt conveyor-type torsional conveying device for peg trays which has the function of traveling in parallel with the under-stand conveyor and receiving and receiving peg trays between the under-stand conveyor and the pipe, the under-stand conveyor and the pipe The peg tray can be taken in and out between changing devices at any time. In addition, centering between the peg tray on the belt conveyor near the spindle rail and the corresponding spindle of the spinning machine can be easily performed at the time of pipe change, and the centering can be done regardless of the pitch of the spindle of the spinning machine. It can be carried out. Therefore, according to the present invention, not only can a pitch-free design be achieved, but also maintenance management is extremely easy.

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 11. In the figure, the same reference numerals as the above-mentioned reference numerals indicate equivalent parts. In other words, 1 is the spindle rail of the spinning machine, , is the peg tray, 4 is the spindle, and 5 is the spindle rail of the spinning machine.
1 is a bobbin, 6 is a tube thread, 11 is a guide rail pin installed parallel to the spindle rail 1 on the spinning machine, 1
Reference numeral 2 denotes a tube changing device according to the present invention that moves along the spindle rail 1 of a spinning machine in the direction of arrow C in FIG. 1 during doffing. In addition, 13 shown in FIG. 2 is the floor surface on which the spinning machine is installed, 14 is the roller beam of the spinning machine, 15 is a guide rail provided along the spindle rail 1, and 12a is a guide roller provided on the tube changing device 12. , 12b are wheels that come into rolling contact with the floor surface 13.

Reference numeral 16 denotes an under-stand conveyor for conveying peg trays, which is installed below the spindle rail 1 of the spinning machine and parallel to the spindle rail 1. This under-stand conveyor 16 is connected to the tube changing device 12 as shown in FIGS. 3 to 5. The side edges are lowered and opened so that the peg tray 3 can be taken in and taken out.

That is, 17 is a base frame of the under-table conveyor 16, and this base frame 17 is made of iron plate, and has a gutter-like groove 17a formed on the side edge on the side of the pipe changing device 12, and its rising edge 17b allows the peg tray 3 to be taken in and taken out. It is formed as low as possible.

18 is the base frame 17 of the under-table conveyor 16
19 is a belt holder guide provided at the bottom of the base frame 17,
20 is the top of the base frame 17 and the belt holder guide 1
This is a flat belt for transporting peg trays that can be driven by being supported on the peg tray. Atsupa Guide 18
The upper guide 18 covers the spinning machine side of the upper surface of the peg tray 3 on the flat belt 20, and its edge 18a presses the peg tray 3 downward. It is formed like this.

In addition, a first
As shown in the figure, four belt guide pulleys 21 are respectively disposed on the pipe switching device 12 by shafts 22, and the belt 23 that is stretched around these four pulleys 21 has a substantially rectangular shape. A motor 24 for driving a belt 23, a drive pulley 25 thereof, and pulleys 26 disposed on both sides of the pulley 25 are provided in the pipe switching device 12, respectively.

The lower side of the belt 23 is connected to the under-table conveyor 1.
In addition to running close to and parallel to 6,
A function for receiving and receiving peg trays 3 is provided between the belt 23 and the under-table conveyor 16, a function is provided on both sides of the belt 23 to raise and lower the peg tray 3 while twisting, and the upper side of the belt 23 is placed close to the spindle rail 1. A belt conveyor type twisting conveyance device for the peg trays 3 is provided in the tube changing device 12 so that the peg trays 3 run in parallel.

This belt conveyor type twisting conveyance device for the peg tray 3 was originally filed in the patent application filed in 1983 by the present applicant.
This method utilizes the principle of the pipe bobbin conveying device of No. 22089, and FIGS. 6 to 8 are explanatory diagrams thereof.

In other words, this belt conveyor type torsion conveying device has a peg tray 3 on a belt 23 and an elastic guide 2.
7, the peg tray 3 is moved together with the belt 23, and the two elastic guides 27 are arranged so as to sandwich the protrusion 3a (see FIG. 6) of the peg tray 3. By twisting and arranging the two elastic guides 27 with respect to the belt 23, the posture of the bobbin 5 placed on the peg tray 3 can be freely changed as shown by arrow D in FIG.

In Figures 7a, b, and c, the bobbin 5 is in an upright position,
8 shows a change in the posture of the bobbin 5 at a portion where the belt 23 in FIG. 1 moves in the direction of arrow E. FIG.

In addition, FIGS. 3 and 4 show the under-table conveyor 16.
This figure shows a mechanism for transferring the peg tray 3 from the torsional conveyor to the torsional conveyor. 28 is a Geneva gear, which works together with the guide plate 29 to change the direction of the peg tray 3 on the understand conveyor 16 by approximately 180 degrees to transfer the peg tray 3 to the torsional conveyor. 30 is the shaft of this Geneva gear 28, which is provided on the pipe changing device 12 side together with the guide plate 29. Also 31
(See Fig. 4) is in the gutter-like groove 17a provided in the base plate 17 of the under-table conveyor 16, so that when the peg tray 3 on the flat belt 20 is transferred onto the belt 23, the peg tray 3 is slightly lifted up. This cam 31 is also fixed to the pipe changing device 12 side.
It is configured to slide on the gutter-like groove 17a.

Therefore, when the tube changing device 12 moves in the direction of arrow C in FIG. 3, the Geneva gear 28 rotates in the direction of arrow F, and moves the bobbin 5 together with the peg tray 3 in the direction of arrow G (see FIGS. 3 and 4). can be transferred to.

3 and 5 show a mechanism for transferring the peg tray 3 from the twisting conveyance device to the understand conveyor 16. In this case, while the elastic guide 27 of the twisting conveyance device is twisted, the peg tray 3 is transferred to the understand conveyor 16.
The peg tray 3 is formed so as to be passed around in an upward direction toward the under-table conveyor 16 in the vicinity of the conveyor 16. Reference numeral 32 denotes a cam for pushing the peg tray, which serves to securely place the peg tray 3 that has been transferred from the twisting conveyor onto the under-stand conveyor 16 onto the flat belt 20 of the under-stand conveyor 16. This cam 32 also serves as a pipe changer. It is attached to the 12 side.

Therefore, when the pipe changing device 12 moves in the direction of arrow C in FIG. It is possible to move onto the flat belt 20 of the understand conveyor 16 while standing up from the horizontal position as shown in J (see FIGS. 3 and 5).

As described above, according to the present invention, as shown in FIGS. 1 and 3, the bobbin 5 on the underboard conveyor 16 is twisted in the direction of the arrow G by the Geneva gear 28 and the guide plate 29, belt 23
At the same time, the peg tray 3 and bobbin 5 are taken out onto a conveyance line along the spindle rail 1, and then raised and changed direction as indicated by the arrow E in FIG. 1. As shown in FIG.
At this point, the tube yarn 6 on the spindle rail 1 is removed from the spindle 4 as shown by the dotted arrow K in FIGS. At the same time, the bobbin 5 on the torsional conveyance device can be transferred onto the spindle 4 on the spindle rail 1 as shown by the solid arrow L.

As a device used for this transfer, a conventionally known device can be used. Fig. 9 shows an example of a thread or bobbing grip mechanism used in the device.
The fingers 33A and 33B are opened and closed in conjunction with each other by meshing a gear 33a and a gear 33b provided at the base. 35 is both fingers 33A, 33
It is a bobbin gripper made of urethane rubber provided inside the tip of B, and 36 is one finger 33A.
A servo cylinder or solenoid connected to an extension of the

That is, the gripper grips the tip of the bobbin 5, and it is also
What is necessary is to move it like L.

In addition, when performing the above-mentioned tube change operation, the spindle 4 on the spinning machine side and the peg tray 3 on the tube change device 12 side
However, according to the present invention, it is possible to align the peg tray 3, which is aligned on the upper side of the belt 23 in FIG. 1 and whose stop position can be easily adjusted, with the corresponding spindle 4. You can easily align the centers by just doing it.

FIG. 10 shows an example of the centering mechanism, and 37 is a screw drum provided on the pipe changing device 12 side, and a guide rail pin installed in the spiral groove 37a of the screw drum 37 on the spinning machine. 11
are mated. Therefore, by interlocking the rotating shaft of the screw drum 37 with the pipe changing motion, the spindle 4 of the spinning machine and the pipe changing mechanism of the pipe changing device 12 can be synchronized.

Further, FIG. 11 shows a centering method using an electric sensor 38, in which the sensor 38 provided on the tube changing device 12 side detects the spindle 4 of the spinning machine, and the detection signal is used to detect the guide roller 12a, for example. It is sufficient to drive the motor while providing feedback using the motor as a driving wheel.

(Effects of the Invention) As described above, the device of the present invention uses a belt conveyor-type torsional conveyance device for peg trays 3, which is composed of a belt 23 for conveying peg trays and an elastic guide 27 arranged in a twisted manner along this belt 23, as a tube changer. In preparation for 12, spindle rail 1 of the spinning machine,
Since the pipe is changed between the peg tray conveying device that runs close to and parallel to the spindle rail 1, the moving distance of the bobbing gripper and the thread gripper when changing the pipe is significantly shortened compared to the conventional method. can do. Therefore, according to the present invention, the time required for replacing the bobbin 5 and the pipe thread 6 is shortened, resulting in the excellent effect that the efficiency of the pipe changing device can be greatly improved.

Furthermore, as described above, by bringing the spindle rail 1 and the belt conveyor of the peg tray 3 closer together, the pipe change mechanism can be adapted to a multi-spindle simultaneous pipe change system or a single-spindle pipe change system, regardless of whether it is an intermittent system or a continuous system. Regardless, it can be made significantly smaller and lighter. Therefore, according to the present invention, manufacturing costs can be reduced, speeding up can be easily achieved, and
This has the effect of increasing the degree of freedom in design.

Furthermore, in the present invention, an under-stand conveyor 16 for conveying peg trays parallel to the spindle rail 1 is provided below the spindle rail 1 of the spinning machine, and the under-stand conveyor 16 is opened on the tube changing device 12 side, Since the tube changing device 12 is provided with a belt conveyor-type torsional conveyance device for the peg trays 3 that runs close to and parallel to the lower conveyor 16 and has the function of receiving and receiving the peg trays 3 between the understand conveyor 16, this According to the invention, the peg tray 3 between the understand conveyor 16 and the pipe changer 12
You can put in and take out at any time. In addition, it is possible to easily center the peg tray 3 on the belt conveyor near the spindle rail 1 and the spindle 4 of the spinning machine at the time of tube change. It can be done regardless of pitch. Therefore, according to the present invention, not only can a pit-free design be achieved, but also maintenance management can be made very easy.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the relationship between a tube changer equipped with the device of the present invention and a spinning frame, Fig. 2 is a side view thereof, Fig. 3 is a partial perspective view of the device of the present invention, and Figs. The figure is a partial side view of FIG. 3, FIG. 6 is a perspective view for explaining the principle of the twisting conveyance device, and FIGS.
FIG. 8 is a perspective view showing a change in the posture of the bobbin in a part of the torsional conveyance device shown in FIG. 1, FIG. 9 is a perspective view showing an example of a bobbing grip, and FIG. FIG. 11 is a perspective view showing another centering mechanism, and FIGS. 12 and 13 are schematic views showing a conventional device. 1...Spindle rail, 3...Petsug tray, 4
...Spindle, 5...Bobbin, 6...Tube yarn, 12...Tube changing device, 16...Understand conveyor, 20...Flat belt,
21...Belt guide pulley, 23...Belt, 24
...Motor, 25...Drive pulley, 26...Pulley, 2
7... Elastic guide, 28... Geneva gear, 29... Guide plate, 31, 32... Cam.

Claims (1)

[Claims] 1. In a spinning machine and a pipe changing device that moves along its spindle rail, an under-stand conveyor for conveying peg trays parallel to the spindle rail is provided below the spindle rail of the spinning machine, and pipe changing of this under-stand conveyor is provided. The device side is open, and it runs close to and parallel to this under-stand conveyor, and has the function of receiving and receiving peg trays between it and the under-stand conveyor, and also has the function of raising and lowering the peg trays while twisting, and the spindle rail. The tube changing device is equipped with a belt conveyor-type torsional conveyance device for peg trays, which includes a belt for conveying peg trays having a portion that runs in parallel with the spindle rail, and an elastic guide arranged in a twisted manner along this belt. 1. A peg tray conveying device in a pipe changing device for a spinning machine, characterized in that the pipe is changed between the peg tray conveying device and the peg tray conveying device that runs close to and parallel to a spindle rail.