JPS6132935Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for winding yarn ends onto an empty bobbin in an automatic winder.

In the case of an automatic winder, a large number of winding units are installed in a row and empty bobbins are loaded, and the empty bobbins are supplied to the cradle device after the fully wound package cage is removed, or the cut yarn ends are tied up. In many cases, a moving vehicle that performs operations such as winding runs in front of the winding unit. In this type of automatic winder, a prime mover box containing a prime mover, a blower, etc. is placed at the ends of the winding units arranged in a row, that is, at both ends or one side of the device. Since both the length and depth are larger than the winding unit, the movable range of the vehicle is limited.

Therefore, the side of the moving vehicle that has stopped facing the winding unit at the end of the motor box is close to the side wall of the motor box, so that when the moving vehicle performs doffing and woodwind feeding operations, However, a mechanism in which a mechanical member for performing the above operation protrudes from the side surface of the vehicle is not preferable.

Therefore, in the case of the device of the present invention, the cutter/clamp device of the yarn end winding device for the empty bobbin, which is one of the above-mentioned mechanical components mounted on the mobile vehicle, is rotated around the newly supplied empty bobbin. The thread end can be cut, gripped, and wrapped with just one hand, and its range of motion is limited to the front and rear surfaces of the bobbin, and does not extend to the sides.

Furthermore, in the device of the present invention, the cutter device and the clamp device for winding the yarn end onto the empty bobbin as described above are integrated, and the opening direction of the device is made to coincide with the turning direction of the device, thereby cutting and cutting the yarn. The present invention is characterized in that gripping is ensured, and there is no need to attach a device for preventing the thread from escaping to the clamp member.

Next, an example of implementation of the device of the present invention will be explained with reference to the drawings.

Figures 1 and 2 show the entire automatic winder. Reference numeral 1 designates a winding unit in which a number of spindles are arranged in a row, and a motor box 2 is provided at both ends or one end of the winding unit and is driven by the winding unit. A moving vehicle 4 is guided by a guide rail 3 provided along the winding unit 1, and supplies empty wood pipes to each winding unit, performs splicing operations, etc., and winds up the bobbin in the winding unit. This is the same as the known device.

The yarn end winding device of the present invention is provided on the moving vehicle 4. The details are shown in FIGS. 3 to 5. 1
0 is a frame of the moving vehicle 4, and a rotating shaft 12 is supported by a support member 11 provided on the frame 10. A gear 13 for rotating the rotating shaft is provided at one end of the rotating shaft 12, and the other end is provided as a large diameter portion 14 for supporting the bobbin. A collar 15 and a lever 16 are fitted between the large diameter portion 14 and the support member 11, and a spring 17 fitted between the lever 16 and the large diameter portion 14 moves the lever 16 toward the collar 15. The lever 16 is in pressure contact with the shaft 12 and normally rotates simultaneously with the shaft 12, but the lever 16 rotates at the same time as the shaft 12, but the lever 16 rotates at the same time as the shaft 12.
When the lever 16 comes into contact with the lever 16, the rotation of the lever 16 is stopped regardless of the rotation of the shaft 12. A roll pin 20 is provided at the tip of the lever 16. An L-shaped bracket 21 having an L-shaped tip bent and parallel to the shaft 12 is fixedly provided on the large diameter portion 14. A cutter/clamp device 22 is provided on the upper surface of the L-shaped bracket 21, and a V-shaped lever 23 for operating the cutter/clamp device 22 is supported by a shaft 24. A pin 2 is attached to one end of the V-shaped lever 23.
5 is provided, and the other end is connected to a lever 27 of the cutter clamp device 22 by a lever 26. The clamp device 22 is provided corresponding to a V-shaped notch 28 provided on the side surface of the tip of the L-shaped bracket 21. 3
0 and 31 are V-shaped fixed pieces, and between them there is a V-shaped movable piece 3.
Hold 2. Fixed pieces 30, 31 are pins 39, 3
The movable piece 32 is fixed integrally with a shaft 33 which can rotate with respect to the bracket 21.
A spring 35 whose one end is fixed by a fixing piece 34 is fitted into the shaft 33, and a V-shaped fixing piece 30,
31, and the movable piece 32 presses the fixed pieces 30, 3.
It is positioned by friction between 1 and 2. Movable piece 3
A blade is formed on the upper edge 32a of the movable piece 2, and the thread is cut between the upper edge of the movable piece and the upper fixed piece 31. The lower edge 32b of the movable piece 32 is rounded, and the lower edge 32b of the movable piece 32 and the lower fixed piece 3
The thread Y is clamped between 0 and 0. A lever 27 is integrally provided on the shaft 33.

Next, its effect will be explained. As shown in FIG. 3, when the package 40 is fully wound and the thread end is wound around the bobbin 41, the thread Y connected to the woodwind 42 is cut, and the thread end from the woodwind 42 is wrapped around the empty bobbin 43. When winding, when the rod 38 is pushed down, the sector gear 37 rotates clockwise, and the shaft 12 rotates counterclockwise via the gear 13. Therefore, the L-shaped bracket 21 fixed to the shaft 12
2 in the counterclockwise direction, and a V-shaped notch 2 is formed in the thread Y between the thread guide 44 and the bobbin 41.
8 enters. The lever 16 is located at a position where it comes into contact with a stopper 19 provided on the frame 10 of the moving vehicle.
When the roll pin 20 of the V-shaped lever 23 engages with the roll pin 25 of the V-shaped lever 23, the V-shaped lever 23 rotates counterclockwise in FIG.
The shaft 33 of the cutter/clamp device 22 is rotated clockwise through the shaft 33, and the movable piece integrated with the shaft 33 is also rotated in the same direction between the upper and lower fixed pieces 30, 31, so that the thread Y is moved as shown in FIG. Cut and grasp.

Thereafter, by pulling up the rod 38, the sector gear 37 is reversed, and the L-shaped bracket 21 is also reversed. At this time, the lever 16 is also pressed in the direction of the collar 15 by the elastic force of the spring 17, and due to the friction therebetween, it reverses as the shaft 12 rotates, and as shown in FIG. 7A, the L-shaped bracket 16 moves approximately During one and a half rotations, the lever 16 that was in contact with the stopper 19 rotates by an angle θ, and the stopper 18
It comes into contact with and stops. During this time, the V-shaped fixed pieces 30 and 31 and the movable piece 32 of the cutter/clamp device 22 remain closed and the thread end is held between them, so that the thread is attached to the empty bobbin 43 by the rotation of the L-shaped bracket. The ends will be rolled up. The rotating L-shaped bracket 21 hits the roll pin 20 of the lever 16, which is in contact with the stopper 18 and stopped.
The roll pin 25 of the V-shaped lever 23 comes into contact with the V-shaped lever 23, and the V
The V-shaped notch of the cutter/clamp device 22 is opened by rotating the shaped lever 32 clockwise in FIG. 4. As a result, the thread end held by the device 22 is released.

As mentioned above, the device of the present invention is a cutter that grips and winds the end of the thread pulled out from the woodwind onto a newly picked up empty bobbin.
Since the clamp device can cut, grip, and wrap the thread end while rotating around the empty bobbin, its range of operation is limited to the front and rear surfaces of the bobbin and does not extend to the sides. Because of that,
Even if the winding unit at the end of a plurality of winding units arranged in a row and the driving part that drives the unit are placed close together, the operation of the unit will not be affected, and the distance between the winding units can be adjusted. Therefore, the device can be made smaller.

Furthermore, in the device of the present invention, the cutter device and the clamp device are integrated, and the direction in which the thread enters into these devices is made to match the direction of rotation of the device, so that thread cutting and gripping can be performed accurately, and the clamping device can be made more accurate. There is no need to provide the member with a device to prevent the thread from escaping.

[Brief explanation of drawings]

Fig. 1 is an overall front view of the automatic winder, Fig. 2 is a side view of the same, Fig. 3 is a perspective view of the yarn end winding device with the support member removed, Fig. 4 is a plan view of the same, and Fig. 5 is a cross-sectional view taken along line A-A in Figure 4,
FIG. 6 is a sectional view showing a state where the thread is cut and held by the fixed piece and the movable piece, and FIG. 7 is an explanatory view showing the relationship between the lever and the stopper. 4...Moving vehicle, 10...Frame, 12...Rotating shaft, 16, 26, 27...Lever, 18, 19...
...Stopper, 20, 25...Roll pin, 21
...L-shaped bracket, 23...V-shaped lever, 2
4, 33...shaft, 30, 31...V-shaped fixed piece, 3
2... V-shaped movable piece, 43... Empty bobbin.

Claims (1)

[Scope of utility model registration request] In an automatic winder having a large number of winding units arranged in a row and a motor box at the end, winding the yarn end onto an empty bobbin installed on a moving vehicle for supplying empty bobbins that runs along each unit. In this device, a rotating shaft 12 that is supported by a frame 10 of a moving vehicle 4 and coaxially supports an empty bobbin 43 is provided with a package whose tip end is wound up from the yarn feeding bobbin 42 of the unit when the rotating shaft is rotated. 40
The empty bobbin 43 intersects with the thread Y leading to
A lever whose tip is bent parallel to the axial direction so as to rotate around the outer periphery, fixes an L-shaped bracket 21, can rotate together with the bracket 21 when the rotating shaft 12 rotates, and has a roll pin 20 at its tip. 16 is supported on the rotating shaft 12 in pressure contact with the L-shaped bracket 21, and the L-shaped bracket 21 has the thread Y
The cutter/clamp device 22 is provided with a cutter/clamp device 22 that is open in the direction of rotation when the cutter/clamp device 22 is rotated in the direction approaching the object. It is pivotally supported on an L-shaped bracket 21 so as to be located within the turning locus of a roll pin 20 provided at
two stoppers 18 that restrict only the rotation angle of the
A thread end winding device for an empty bobbin in an automatic winder is provided with a thread end winding device 19 on a frame body 10 of a moving vehicle.