JPH05147823A - Bobbin driving device of spindle table for long fiber and short fiber - Google Patents

Abstract

PURPOSE: To provide the subject device enabling a bobbin to automatically arrange, move up and down, by providing an elastically deformable driving device to incorporate with the corresponding worked part of an upper part inside the bobbin through their shapes on the upper free end of a spindle. CONSTITUTION: An elastically deformable driving device 2 comprises a tulip shape of those springs composed of a plurality of thin plates which are arrayed at definite spaces at the periphery of the upper end of a spindle 1 and whose curved upper parts around the concentric ring project beyond the diameter of the spindle 1. The bobbin is provided either at that worked part of the inside upper part whose shape corresponds to the shape of thin plates with a plurality of notches extending at regular intervals, or at the worked part of the whole inside part with grooves extending therethrough. As incorporating a majority of thin plates with the same number of notches or grooves, the bobbin is inserted with a perfect interdigitation on the spindle 1 of a spindle bank without respect to an angle of position of the bobbin to the spindle 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin drive for long-fiber and short-fiber spindle mounts in the textile industry, in particular for spindle shafts of this type, and a drive device therefor.

[0002]

2. Description of the Related Art At present, a bobbin rotary drive of a spindle base is usually carried out through a pawl (projection) provided at the bottom of the spindle and cooperating with a slot provided at the bottom of the bobbin. The pawl engages the slot and drives the bobbin. However, in order to perform such a drive, the operator must engage the bobbin slot with the spindle pawl.

This operation is possible when the raising and lowering is manual and the operator arranges the bobbin himself, but when the raising and lowering is automatic, the bobbin is arranged at some angular position with respect to the spindle. The bobbin slot is then very unlikely to be located directly above the spindle pawl, so that the drive of the bobbin may be defective, especially when the pawl slides until it engages the slot. However, a situation may occur in which sudden acceleration, which is harmful to spinning, occurs as soon as the engagement is achieved.

[0004]

The object of the present invention is to solve these problems.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention is a bobbin drive device for a long fiber and short fiber spindle mount, the corresponding working portion (amena) of the inner upper part of the bobbin.
The device is characterized in that an elastically deformable drive means cooperating via shape with the element is provided at the upper free end of the spindle.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in more detail with reference to the accompanying drawings and preferred non-limiting embodiments.

As shown in FIGS. 1 and 2 as a specific embodiment, the device of the present invention for driving a bobbin of a spindle stand for long fibers and short fibers depends on the corresponding working part and shape of the inner upper part of the bobbin. Cooperating elastically deformable drive means 2
Is provided at the upper free end.

The elastically deformable drive means 2 preferably consists of a tulip-shaped spring composed of a plurality of lamellas 3. The thin plates 3 are arranged on the peripheral edge of the upper end of the spindle 1 at regular intervals, and an upper part curved along a concentric ring extends beyond the diameter of the spindle 1 to the outside.

The machined portion of the inner upper portion of the bobbin is formed of a plurality of notches each having a shape corresponding to the shape of the thin plate 3 and extending at regular intervals, or a groove extending over the entire inner portion of the bobbin. Is preferred.

Each flyer of the spindle mount has a proximate axis to each spindle 1 to facilitate full insertion of each spindle 1 into the corresponding bobbin when the bobbin is automatically placed on the spindle mount. In addition, it is provided with flexible stop means which cooperate with the upper part of the bobbin to promote a perfect fit between the bobbin and the spindle 1.

In fact, when the bobbin is placed by the robot, the robot completely covers the corresponding spindle 1 by the movement of the carriage, and the upper part of the bobbin is placed in the axis of the flyer by the corresponding flexible stop means. Abut. If the aforementioned notch or groove does not exactly face the lamella 3 of the means 2, the lamella 3 is elastically bent in the direction of the central axis, allowing the bobbin to be driven by friction. This drive lasts as long as the bobbin is not overloaded, which causes the bobbin to rotate relative to the lamella until the lamella 3 is placed in the corresponding notch. Such relative movement between the bobbin and the spindle 1 only takes place over a fraction of a revolution, after which the drive is ensured without risk of interruption.

In the drive system of the present invention, since a large number of thin plates cooperate with the same number of notches or grooves, the bobbin is completely fitted around the spindle 1 of the spindle base regardless of the angular position of the bobbin with respect to the spindle 1. Is inserted.

In the device according to the invention, the drive is also carried out by the cooperation of the thin plate 3 of the means 2 of the spindle 1 and the notch or groove of the bobbin, so that no axial thrust is generated on the bobbin, which is why The bobbin does not tend to rise.

Further, since it is not necessary for the bobbin placement robot to perform an operation for searching for the engagement position, use of a complicated and expensive robot is avoided.

Furthermore, the danger of vibrations is also avoided, since the thin spring plates act simultaneously to eliminate the radial gap between the spindle 1 and the bobbin around it.

According to the present invention, it is possible to obtain a bobbin drive device capable of performing perfect centering and perfect drive of the bobbin, and automatic placement and elevating of the bobbin.

Of course, the present invention is not limited to the embodiments described above with reference to the accompanying drawings, which depart from its scope, in particular with respect to the construction of the various elements or by the use of other equivalent techniques. It can be variously modified without doing.

[Brief description of drawings]

FIG. 1 is a side view of the device of the present invention.

2 is a plan view of the device of FIG. 1. FIG.

[Explanation of symbols]

 1 spindle 2 drive means 3 thin plate

Claims (4)

[Claims] 1. A bobbin drive device for a long fiber and short fiber spindle mount, wherein elastically deformable drive means cooperating via a shape with corresponding processing parts of an upper inner part of the bobbin is installed above the spindle. A bobbin driving device for a spindle stand for long fibers and short fibers, which is provided at a free end. 2. The elastically deformable drive means preferably comprises a tulip-shaped spring composed of a plurality of lamellas,
2. The thin plates are arranged at regular intervals on the periphery of the upper end of the spindle, and the upper parts of the thin plates are curved along a concentric ring and project outwardly beyond the diameter of the spindle. The device according to. 3. A groove formed on the inner upper portion of the bobbin, the groove having a shape corresponding to the shape of the thin plate and extending at regular intervals, or a groove extending over the entire inner portion of the bobbin. The device of claim 1, wherein the device comprises: 4. A flexible stop means cooperating with the upper portion of the bobbin is provided on each flyer of the spindle base near its axis to facilitate a complete fit between the bobbin and the spindle. Device according to any one of claims 1 to 3, characterized in that