JPH0371341B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention enables a support case that supports a friction roller to be connected to a traverse device, thereby changing the resonance point of the support case and reducing the length of the bobbin holder. This invention relates to a yarn winding machine with a larger package diameter.

(Prior art) In a conventional winding machine, a yarn is inserted between a friction roller and a traverse device, the yarn is traversed by a traverse guide of the traverse device, and the traversed yarn is flicked. The yarn was wound onto a bobbin that was in contact with a friction roller while applying surface pressure.

(Problems to be Solved by this Invention) However, as bobbin holders become longer and package diameters become larger as they are today, the support case that supports the friction roller also becomes longer, and the rotation of the bobbin holder increases. Since the range from the beginning of winding to the end of winding is wide, it has been difficult to raise the resonance point of the support case higher than a predetermined range.

Therefore, if the resonance point of the support case is set below a predetermined range, resonance of the bobbin holder or the support case may occur due to shocks that occur when the friction rotor and bobbin holder come into contact with or separate from each other, or when the bobbin holder decelerates or starts up. There is a problem in that the support case and each tip of the traverse device swing due to vibrations induced when passing through a point, causing contact between the friction roller and the traverse guide, resulting in damage or breakage of the friction roller or the traverse guide. It was hot. This was particularly noticeable when ribbons were generated during winding of the yarn and the case was weak in rigidity.

Additionally, if the resonance point of the support case is within a predetermined range, large vibrations may be induced when the rotational speed of the bobbin holder during winding passes through the resonance point of the support case, making winding impossible. Another problem was that the winding machine itself was damaged.

(Means for Solving the Problems) The present invention has been made for the purpose of solving the above problems, and it is an object of the present invention to protrude a support case that supports a friction roller on a main body and a traverse device in parallel. The yarn is inserted between the friction roller and the traverse device, the yarn is traversed by the traverse guide of the traverse device, and the traversed yarn is brought into contact with the friction roller to create surface pressure. In the yarn winding machine, the yarn is wound around a bobbin that is brought into contact with a friction roller while maintaining the traverse device at a constant level, and at least one connecting member that connects or disconnects the traverse device and the support case is provided. At least when the yarn is inserted between the friction roller and the traverse device, the connection by the connection member is released.

(Function) In this invention having such a configuration,
Since the support case that supports the friction roller and the traverse device are connected by a connecting member at one or more points including their ends, contact between the friction roller and the traverse guide caused by vibration is prevented. can do. Furthermore, since the resonance point of the support case can be made variable, it is possible to prevent the induction of large vibrations due to resonance, and it is possible to increase the length of the bobbin holder and the diameter of the package cage.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

1 to 4 are diagrams showing an embodiment of the present invention.

First, to explain the structure, in FIGS. 1 and 2, 1 is the main body of the winding machine 2, and the upper part of the main body 1 includes a traverse device 3 and a support case 5 that supports the friction roller 4. , are provided so as to protrude in parallel and to be movable up and down.
A turret table 6 is rotatably supported at the bottom of the main body 1, and bobbin holders 9A and 9B are attached to the turret table 6, on which bobbins 8A and 8B for winding the yarn 7 are mounted. The traverse device 3 is provided with a traverse guide 3A that traverses the thread 7 wound around the bobbin 8A or 8B, and a friction roller 4 contacts the traversed thread 7 and applies surface pressure to the bobbin 8A or 8B. 8B is rotated.

Further, in FIGS. 3 and 4, 10 is a stopper member having a locking portion 10A attached to the end of the support case 5 with a bolt 11, and 12 is a stopper member attached to the end of the traverse device 3 with a bolt 13. It's a bracket. A hook 14 that connects or disconnects the support case 5 and the traverse device 3 is rotatably attached to the bracket 12 by a pin 24, and one end of this hook 14 engages with the locking portion 10A. An engaging portion 14A is formed. The other end of the hook 14 has a pin hole 14B.
is formed, and the hook 14 is connected to a joint 18 integrally fixed to the piston 17 via a pin 16 inserted into the pin hole 14B. Therefore, the hook 14 and the stopper member 10 constitute a connecting member 15. The piston 17 is housed in a cylinder 19 so as to be able to reciprocate, and the cylinder 19 is supported by a bracket 21 to which a bolt 20 is fixed to the traverse device 3. Accordingly, by the operation of the piston 17, the hook 14 is engaged with the stopper member 10, and the support case 5 and the traverse device 3 are connected.
Note that 22 and 23 are covers fixed to the support case 5 and the traverse device 3, respectively.

Next, the effect will be explained.

First, when threading, the piston 17 is actuated to the left in FIGS. 3 and 4 using a push button (not shown) to engage the engaging portion 14A of the hook 14 and the locking portion 10A of the stopper member 10. At this time, the connection between the support case 5 and the traverse device 3 is released.

Then, the yarn 7 is inserted between the friction roller 4 and the traverse device 3. Next, operate the piston 17 to the right using the push button to release the hook 1.
4 is engaged with the locking portion 10A of the stopper member 10. This connects the support case 5 and the traverse device 3 to each other. Next, the yarn 7 inserted between the friction roller 4 and the traverse device 3 is traversed by the traverse guide 3A, and the traversed yarn 7 is brought into contact with the friction roller 4 to apply surface pressure. The yarn 7 is wound onto the bobbin 8A which is brought into contact with the friction roller 4 while giving the same amount of force. Next, when the yarn 7 wound around the bobbin 8A reaches a predetermined amount, the turret table 6 is rotated by an actuator (not shown) to transfer the yarn 7 from one bobbin 8A to the other bobbin 8B. Changes the winding mode.

As described above, in this embodiment, the support case 5 and the traverse device 3 are connected by the hook 14, so that the shock generated when the friction roller 4 and the bobbin 8A or 8B come into contact with each other or separate from each other can be avoided. It is possible to prevent the friction roller 4 from coming into contact with the traverse guide 3A due to vibrations during activation or deceleration of the bobbin holder 9A or 9B. As a result, damage to the friction roller 4 or the traverse guide 3A can be prevented. Furthermore, since the resonance point of the support case 5 can be made variable, it is possible to prevent the induction of large vibrations due to resonance, and it is possible to increase the length and size of the winder 2.

Next, FIGS. 5 to 7 are diagrams showing other embodiments of the present invention.

In this embodiment, a force is applied to the hook 14 by a spring 31 instead of the cylinder 19 and piston 17 of the previous embodiment.

In FIGS. 5 and 6, 32 is a lever, and this lever 32 is connected to the hook 14 via a pin 33. A spring 31 is interposed between the pin 33 and a bracket 34 attached to the traverse device 3, and the spring 31 applies force to the hook 14. A manual handle 35 is attached to the lever 32, and when the handle 35 is manually moved, the hook 14 is engaged with the stopper member 10. Note that the rotation speed of the bobbin holder 9A or 9B is detected by a pickup not shown.

Therefore, as shown in FIG. 7, until the rotation speed (N in the figure) of the bobbin holder 9A or 9B reaches the first predetermined value (the resonance point at the time of connection indicated by straight line A in FIG. 7), The hook 14 and the stopper member 10 are disengaged, and the support case 5 and the traverse device 3 are removed.
Release the connection with. In this way, the resonance point of the support case 5 is moved from A to B (the resonance point when released). Then, when the rotation speed N of the bobbin holder 9A or 9B reaches a second predetermined value (B in the figure),
The hook 14 is engaged with the stopper member 10 to connect the support case 5 and the traverse device 3. This moves the resonance point of the support case 5 from B to A. In this way, the bobbin holder 9A or 9B
It is possible to prevent the rotation speed N of the support case 5 from coinciding with the resonance point of the support case 5. As a result, vibrations caused by resonance can be more reliably avoided than in the embodiments described above. The other configurations and operations are the same as in the previous embodiment.

In this embodiment, a friction type winding machine has been described, but it goes without saying that the present invention can also be applied to a spindle type winding machine in which a bobbin holder is driven by a motor via an inverter. In this case, the hook 14 and the stopper member 10 may be connected or released when the frequency of the inverter reaches a predetermined value.

In this embodiment, one resonance point is avoided, but multiple resonance points are avoided by connecting multiple connecting members 1.
The resonance point may be avoided by the degree of connection of 5, the number of connections, or a combination of these connection points. Alternatively, these conditions may be programmed in advance and controlled by a microcomputer or the like according to the program. The winding diameter can be detected by detecting the amount of movement of a block to which a friction roller is attached using a limit switch or by other known means.

Furthermore, in this embodiment, the resonance point is moved by connecting and releasing the hook 14 and the stopper member 10;
The connection force with 0 may be made variable.

Also, although the hook 14 for connection was provided at one location, it may be connected at multiple locations,
The number of connections may be changed. Further, although the hook 14 and the stopper member 10 are used for connection, a magnet may be used as the connection member 15, or a hole may be formed and a pin inserted therein.

(Effects) As explained above, according to this invention,
Since contact between the friction roller and the traverse guide can be prevented, damage to the friction roller or the traverse guide can be prevented. Furthermore, since the resonance point of the support case can be made variable, it is possible to prevent large vibrations from being induced, and the winding machine will not be damaged or become impossible to wind. Furthermore, since the winder can be made longer and have a larger diameter, the winding efficiency can be improved.

[Brief explanation of drawings]

1 to 4 are diagrams showing an embodiment of a yarn winding machine according to the present invention, in which FIG. 1 is a front view thereof, FIG. 2 is a side view thereof, and FIG. 3 is a schematic view thereof. A partial sectional view, FIG. 4 is a view taken along the - arrow in FIG. 3, and FIGS. 5 to 7 are views showing other embodiments of the present invention.
Fig. 5 is a cross-sectional view of the main part, and Fig. 6 is a - of Fig. 5.
The arrow view and FIG. 7 are graphs showing the relationship between the rotation speed of the bobbin holder and the resonance point. DESCRIPTION OF SYMBOLS 1... Main body, 2... Winding machine, 3... Traverse device, 3A... Traverse guide, 4... Friction roller, 5... Support case, 7... Yarn,
8A, 8B... Bobbin, 9A, 9B... Bobbin holder, 15... Connection member.

Claims (1)

[Claims] 1. A support case that supports a friction roller and a traverse device are provided in parallel to the main body, and a yarn is inserted between the friction roller and the traverse device, and a traverse guide of the traverse device is provided. A yarn winding method in which the traversed yarn is brought into contact with a friction roller, and the yarn is wound onto a bobbin that is in contact with the friction roller while applying surface pressure. In the machine, at least one connecting member is provided to connect or disconnect the traverse device and the support case, and at least when inserting a yarn between the friction roller and the traverse device, the connection by the connecting member is provided. A yarn winding machine characterized in that the thread is released. 2. The connecting member is opened or connected depending on the rotational speed of the bobbin holder or the diameter of its package, and the degree of connection at that time is constant or variable. The mentioned yarn winding machine.