JPH022280Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of application of the invention) This invention uses a linking sewing machine to sew the sleeves and collars of knitted products (sweaters, cardigans, etc.) to the body, and then use extra braided thread ( waste thread)
The present invention relates to a device for removing.

(Prior art) When producing knitted products (sweaters, cardigans, etc.), extra braided parts are prepared in advance on the sleeves and collars, and this extra braided thread (waste thread) is sewn to the body part. A process of unraveling and removing is then adopted. This unraveling work has traditionally been done by pulling and tensioning by hand, but due to the repetitiveness of the simple work, the workers are extremely fatigued and it is difficult to increase the work speed.
As a result, there was the problem of high labor costs.

(Purpose of the invention) The present invention fundamentally solves various problems in conventional thread unraveling work by providing a means for automatically unraveling yarn at high speed by simply wrapping the end of the discarded yarn lightly. The purpose is to

(Means for Solving Problems) In order to solve the above problems, the present invention includes a pedestal with a built-in motor, and a pedestal that protrudes from the pedestal and is connected to the output shaft of the motor via a torque tender. A configuration consisting of a bobbin mounting means is adopted.

The motor installed in the frame needs to rotate at a fairly high speed in order to improve the winding efficiency. Preferably, this device is equipped with a speed adjustment means so as to be able to deal with differences in work targets and skill levels of workers.

The winding bobbin attachment means is attached to the output shaft of the upper motor on the outer surface of the mount,
If an excessive load is applied to the motor shaft due to the thread becoming entangled or tangled, stop rotation immediately.
In order to be able to resume rotation immediately when the cause of the abnormality is removed, it is connected to the output shaft of the motor via a known torque tending mechanism.

The upper bobbin attachment means consists of a frustoconical base, preferably with a gently sloped surface, and a spindle extending from the center of the base to prevent thread entrainment. This base not only maintains the distance between the thread and the motor shaft and prevents the thread from wrapping around the shaft by the exclusion action of its conical slope, but also provides an appropriate mass to the mounting means. It has various effects such as keeping the rotation speed constant and further preventing vibration of the means due to the spinning top effect. Therefore,
It is preferable that it is configured so that it can be replaced depending on the type of waste yarn to be used and the shape of the bobbin. Note that it is desirable that the clearance between the base and the pedestal surface be as small as possible.

The bobbin may have virtually any shape, but from the viewpoint of waste utilization, it is appropriate to utilize an empty bobbin of sewing thread used in a linking sewing machine. In this case, since the shape of the bobbin is a hollow cone, the inner shape of the base of the spindle and the upper mounting guide are tapered in the same way as the inner shape of the cone.

If desired, a low fence is provided on the cradle around the bobbin attachment means. This fence is
Since it prevents the thread from touching the mount surface, it not only more effectively prevents the thread from winding or being pulled in, but also
It also serves as a handle when transporting this device.

(Operation) FIG. 2 is a perspective view illustrating the above-described device according to the present invention and showing its operation.

Now, when the apparatus 1 is operated and the end of the waste thread T is lightly wound around the rotating bobbin B as shown in the figure, the thread (T) is immediately wound around the bobbin. At this time, even when the thread T falls below the lower edge B1 of the bobbin B, the presence of the fence 14 makes it difficult for the thread to contact the pedestal surface 2a.
Moreover, since the inclined surface 7c of the base 7 of the thread winding means 6 throws off the thread, the thread is prevented from coming into contact with the pedestal surface 2a. Furthermore, even if the thread should come into contact with the pedestal surface 2a, since the gap c between the lower surface of the base and the pedestal surface is small,
There is no fear that the thread will get into the gap.

When the yarn becomes tangled in the process of sequentially winding up the waste yarn T as described above, the internal torque tender (not shown in the figure) immediately acts on the motor shaft (not shown in the figure). Since the connection between the bobbin mounting means 6 and the bobbin attachment means 6 is cut off, there is no risk of the thread being cut. As soon as the tangle is removed, the upper connection is restored and rotation of the bobbin attachment means is resumed.

(Example) Hereinafter, an example of the embodiment of the invention will be disclosed with reference to an example, but of course, this is an illustration and does not mean a limitation of the idea of the invention.

FIG. 1 is a central vertical cross-sectional view of an example of a waste yarn winding machine according to the present invention.

The device 1 includes a rectangular frame 2, a motor 3 mounted upward inside the frame, a torque tender 5 attached to the output shaft 4 of the motor, and a bobbin attached to the output side of the torque tender. It includes attachment means 6 as a main component. As auxiliary members, a rectangular fence/handle 14 is provided on the top surface 2a of the pedestal 2, and a front panel 2 of the pedestal 2 is provided with a rectangular fence/handle 14.
b (see Fig. 2 below) includes a speed adjustment knob 11, a power switch 12, and a pilot lamp 1.
3 are installed respectively.

The bobbin attachment means 6 has a double truncated conical base 7
and a connecting portion 8 that extends downward along the axis of the base and is connected to the output side of the torque tender 5.
, a spindle 9 erected on the base, and a bushing (bobbin installation guide) 10 made of rubber elastic material fitted around the spindle, and a side wall of the small truncated conical portion 7a above the base 7. 7b and the interlocking wall 10a of the bushing 10 constitute a holding surface for the bobbin B.

The device of this example is small and lightweight, has no dangerous exposed parts, and is safe because it stops immediately when the thread becomes tangled. In addition, since it can be manufactured using almost all commercially available parts except for the bobbin attachment means 6, it can be manufactured at low cost, making it suitable not only for large companies but also for home industry use.

(Effects) As explained above, the present invention can industrially provide a safe and efficient waste yarn winding machine, thereby contributing to the promotion of the textile industry and the welfare of workers involved.

[Brief explanation of the drawing]

FIG. 1 is a central vertical sectional view of an example of a waste yarn winding machine according to the present invention, and FIG. 2 is a perspective view showing the appearance and operation of the device shown in FIG. The meanings of the main symbols in both figures are as follows: 1: The entire waste yarn winding machine; 2: The mount in 1; ...3: The motor in 2;
...4:3 output shaft; ...5:4 surrounding torque tender; ...6; bobbin attachment means; ...7:6
base, 8:6 connection, 9:6 spindle;
...10: 9 Upper bushing (bobbin installation guide); ...11: Rotation speed adjustment knob, 12:
Power switch, 13: Pilot lamp, 14:
B: Bobbin, T: Waste thread.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Consisting of a pedestal with a built-in motor, and bobbin mounting means protruding from the surface of the pedestal and connected to the output shaft of the motor via a torque tender. Characteristic waste yarn winding machine. (2) The waste yarn winding machine according to claim 1, wherein the bobbin attachment means is configured to be replaceable. (3) The bobbin attachment means is provided with a tapered and enlarged truncated conical base, and a small diameter spindle for bobbin attachment extends from the center of the trapezoid. waste yarn winding machine. (4) The discarded yarn winding machine according to claim 1, wherein the stand includes a fence for preventing yarn from being caught.