JP3404922B2 - Roller device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller device used for winding and feeding thin plate-shaped or linear material, and more particularly to a roller device suitable for a draft roller of a spinning machine. It is about.

[0002]

2. Description of the Related Art Heretofore, there has been known a roller device in which a drive shaft is supported by a drive shaft via a bearing, the drive shaft is inserted into the roller, and the roller and the drive shaft are connected via a clutch. .

[0003]

In the above-mentioned conventional roller device, since the roller is supported by the drive shaft, the drive shaft has to be made thick for the reason of strength, and therefore,
There is a problem that the roller supported by the drive shaft also has a large diameter and the roller device becomes large in size, and the machine equipped with such a roller device also becomes large in size. Further, since the roller is supported by the drive shaft, the roller also shakes with the shake of the drive shaft, which makes it difficult to control the shake prevention of the roller itself and causes a great shake of the roller.

When the above-mentioned conventional roller device is used as a package driving roller of a winding device,
Since the runout of the roller is large, slippage occurs between the package and the roller, making the package unstable,
There are problems such as loud noise.

Further, when the above-mentioned conventional roller device is used for a roller device for feeding a thin plate-shaped or linear material, etc., since the roller is largely shaken as described above, the roller is thin plate-shaped or linear. However, there is a problem that it is not possible to contact the strip-shaped material or the like in a stable state, and therefore it is impossible to reliably feed the thin plate-shaped or linear material or the like at a constant speed.

Furthermore, when the above-mentioned conventional roller device is used as a draft roller of a spinning machine, there is a problem that the gauge change range of the draft roller is narrow because the roller device is large. When the above-described conventional roller device is used as a front roller of a spinning machine that uses a swirling air flow having a nozzle, the front roller supported by the drive shaft is thick, so the nozzle approaches the front roller. Can not be installed, therefore,
There is a problem that usable fibers or spun yarns to be spun are limited.

An object of the present invention is to solve the problems of the above-described conventional roller device, and to provide a roller device having a simple structure and easy maintenance.

[0008]

In order to achieve the above-mentioned object, the present invention provides a roller device in which a drive shaft is inserted into a roller with a predetermined gap and the roller and the drive shaft are connected via a clutch. First , the drive shaft is supported by a drive shaft bearing provided in a drive shaft coupling housing, and one end of the roller is provided in a clutch housing. Supported by a bearing for the roller, and the other end of the roller is
The roller and the drive shaft are independently supported by being supported by a roller bearing different from the drive shaft bearing provided in the drive shaft coupling housing, and the drive shaft is further supported. Mounted on the housing for shaft connection
The bearing for the drive shaft is installed in the housing for connecting the drive shaft.
Inner than the roller bearing that supports the roller
Together are arranged on the side, is obtained by connecting the drive shaft via a coupling, the second, is obtained using a roller as a draft roller of the spinning machine.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1 which is a horizontal sectional view of a roller device of the present invention, FIG. 2 which is a partially enlarged sectional view of a clutch, and FIG. 3 which is an enlarged sectional view of a connecting portion of a drive shaft, The roller device of the present invention will be described, but the present invention is not limited to this embodiment as long as the gist of the present invention is not exceeded.

Reference numeral 1 denotes a drive shaft which is rotated by an appropriate drive means (not shown), and the drive shaft 1 is arranged in a housing 2 for connecting the drive shafts which is arranged at an appropriate interval on the machine base. It is supported by the bearing 3. Further, grooved rollers 4 as shown in FIG. 3 are fixed to both ends of the drive shaft 1. Adjacent drive shafts 1 are provided with grooved rollers 4 facing each other on their inner peripheral surfaces. The snap ring 1b is fitted in the groove 1a provided in the drive shaft 1 while being inserted into the tubular coupling 5 made of synthetic resin such as urethane provided with a groove similar to the groove provided in the roller 4. As a result, the movement of the tubular coupling 5 in the axial direction is stopped. In this way, the grooved rollers 4 of the adjacent drive shafts 1 are inserted into the tubular coupling 5 having the groove on the inner peripheral surface thereof, and the tubular coupling 5 having the groove on the inner peripheral surface thereof and the drive shaft. Rotation is transmitted to the adjacent drive shaft 1 by meshing with the grooved roller 4 fixed to 1 like gears.

Reference numeral 6 denotes a clutch housing arranged between the drive shaft connecting housings 2.
Bearings 8 for supporting the roller 7 inserted into the drive shaft 1 via a predetermined gap are provided in the openings provided on both sides of the bearing 8. Further, bearings 9 for supporting the other end of the roller 7 supported by the bearing 8 are provided in openings provided on both sides of the drive shaft connecting housing 2. In this way, the drive shaft 1
Is supported by a bearing 3 arranged inside the housing 2 for connecting the drive shaft to a bearing 9 supporting the roller 7, and one end of the roller 7 on which the drive shaft 1 is inserted is A bearing 8 arranged in an opening of a clutch housing 6 arranged between the drive shaft connecting housings 2.
And the other end of the roller 7 is supported by a bearing 9 arranged in the opening of the housing 2 for connecting the drive shaft.

Next, a clutch C for transmitting the rotation of the drive shaft 1 to the roller 7 or for interrupting the rotation of the drive shaft 1 arranged in the clutch housing 6 will be mainly described with reference to FIG. Will be explained.

Reference numeral c1 is a drive shaft side disc fixed to the drive shaft 1, and c2 is a roller side disc fixed to the end portion of the roller 7, and the drive shaft side disc c1 and the roller The side disc c2 is configured to face the side disc c2 at a predetermined interval. c3 is a conductive disc-shaped clutch plate attached to the roller-side disc c2 via a spring member c4 such as a disc spring or an appropriate number of leaf springs. The clutch plate c3 is a drive shaft side. It is arranged between the disk c1 and the roller-side disk c2. c5 is an electromagnetic coil disposed on the inner wall of the housing 6, and is a drive shaft side disc c opposite to the clutch plate c3.
It is arranged so that it may face the side surface of No. 1.

FIG. 2 shows the clutch C in a non-operating state in which no current flows through the electromagnetic coil c5. In this non-operating state, the drive shaft side disc c1 fixed to the drive shaft 1 is shown. And a clutch plate c attached to the roller side disc c2 fixed to the end of the roller 7 via a spring member c4.
3 is separated from the roller 7, and therefore the rotation of the drive shaft 1 is
Is not transmitted to the drive shaft 1 and the roller 7 is blocked.

From this state, when a current is applied to the electromagnetic coil c5 to generate a magnetic field, the clutch plate c3 moves to the spring member c.
It moves in the direction of the drive shaft side disc c1 against the spring force of 4,
Drive shaft side disc c1 and clutch plate c fixed to the drive shaft 1
3 will come into contact. Therefore, the rotation of the drive shaft 1 is caused by the drive shaft side disc c1, the clutch plate c3, and the spring member c4.
And is transmitted to the roller 7 via the roller side disk c2.

As described above, the roller 7 is supported by the bearing 8 provided in the clutch housing 6 and the bearing 9 provided in the drive shaft connecting housing 2, and is supported by the drive shaft 1. Since the drive shaft 1 is not provided, the drive shaft 1 can be made thin. Therefore, the roller 7 into which the drive shaft 1 is inserted can be made thin, and the roller device itself can be made compact.

The drive shaft 1 is a housing 2 for connecting the drive shaft.
Is supported by a bearing 3 disposed in the clutch housing, and the roller 7 is a bearing 8 disposed in a clutch housing 6.
And a bearing 9 arranged in the housing 2 for connecting the drive shaft
Since the drive shaft 1 and the roller 7 are separately supported, the runout of the drive shaft 1 that is relatively long and easily shakes is not transmitted to the roller 7. Accurate rotation with no runout can be realized.

Since the roller device can be miniaturized, when such a roller device is used as a draft roller of a spinning machine, the allowable range of gauge change of the draft roller is widened, and various fibers can be dealt with. Draft device can be realized. When the roller device is used as a draft roller of a spinning machine, particularly a bottom roller, it is preferable to engrave a groove along the axial direction of the roller 7 around the roller 7. In the figure, a space between the drive shaft coupling housing 2 and the clutch housing 6 corresponds to a draft roller for one spindle. The drawing also shows a draft roller 7 for twin yarns. Further, the drive shaft is provided for two weights in common, but it may be divided for each weight and connected by a coupling, or one drive shaft for all weights may be used.
A book may be used as the drive shaft.

When such a roller device is used for the front roller of a spinning machine utilizing a swirling air flow having nozzles, the nozzles can be arranged close to the front rollers, so that various lengths or Different kinds of fibers can be used, and a variety of spun yarns can be realized.

When such a roller device is used as the package driving roller of the winding device, the roller does not swing so much that the slip generated between the package and the roller can be suppressed and the package can be kept in a stable state. It is possible to rotate with, and it is possible to suppress the generation of noise.

When such a roller device is used as a roller device for feeding a thin plate or a linear material or the like, as described above, since the roller swing is small, the roller is always in a stable state and has a thin plate shape. Alternatively, it can come into contact with a linear material or the like, so that the thin plate-shaped or linear material or the like can be reliably fed at a constant speed.

[0022]

Since the present invention is configured as described above, it has the following effects.

Since the roller and the drive shaft are configured to be supported separately, the drive shaft can be made thin, and therefore the roller on which the drive shaft is inserted can be made thin, and by extension, the roller. The device itself can be miniaturized.

Since the roller and the drive shaft are configured to be supported independently of each other, the vibration of the drive shaft, which is relatively long and easily shakes, is not transmitted to the roller. Rotation can be realized.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of a roller device of the present invention.

FIG. 2 is a partially enlarged sectional view of a clutch.

FIG. 3 is an enlarged cross-sectional view of a drive shaft connecting portion.

[Explanation of symbols]

C ... Clutch 1 ... Drive shaft Bearings 3, 8, 9 ... 7 ... Laura c1 ・ ・ ・ ・ Drive side disk c2 ・ ・ ・ ・ Roller side disk c3 .... Clutch plate c4 ・ ・ ・ ・ Spring member c5 ... Electromagnetic coil

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) F16C 13/02 B65H 5/06

Claims (2)

(57) [Claims] 1. A roller device in which a drive shaft is inserted into a roller with a predetermined clearance and the roller and the drive shaft are connected via a clutch, wherein the drive shaft is disposed in a drive shaft connecting housing. Is supported by a drive shaft bearing, one end of the roller is supported by a roller bearing disposed in a clutch housing, and the other end of the roller is supported by the drive shaft. The roller and the drive shaft are independently supported by being supported by a roller bearing different from the drive shaft bearing provided in the coupling housing, and the drive is further supported.
Bearings for drive shafts arranged in a housing for shaft coupling
Is a roller arranged in the housing for connecting the drive shaft
Is located inside the roller bearings that support the
And the drive shaft is connected via a coupling.
Roller device characterized by being 2. The roller is used as a draft roller of a spinning machine.
The roller device according to claim 1 , wherein the roller device is provided.