JPH10311393A - Power transmitting device for seamer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a device to easily give tension to a timing belt without using a tension idler device in power transmission of a seamer and a filler, so that shortening of a maintenance time and lengthening of a period of the maintenance interval can be attained. SOLUTION: A main gear 5 provided in a seamer output shaft 1 from a seamer and a driven gear 6 meshed with the main gear on the same plane are provided, a shaft of the driven gear is provided capable of swiveling on a circular arc with an axial line of the seamer output shaft 1 serving as the center, to a driven shaft, a drive side pulley 9 transmitting power to a filler input shaft 10 through a timing belt 12 is fixed, the drive side pulley 9 can be displaced on a circular are with an axial center of the seamer output shaft serving as the center.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission device of a seamer for transmitting power from a seamer to a filler.

[0002]

2. Description of the Related Art In a canning manufacturing process, the rotation of a filler at the time of filling is driven by a certain harmony (timing) with respect to the seamer by receiving power from a seamer side, so that a can after filling an inner solution is obtained. Is accurately transferred to the Cima and is tightened. If the rotation timing of the filler and Cima is incorrect, the cans cannot be delivered,
Conventionally, a timing belt has been used for power transmission from the seamer to the filler so as to ensure the rotation timing. However, the combination of the filler and the seamer may be from different manufacturers, or even the same manufacturer may have different specifications, and the positions and distances between the seamer output shaft and the filler input shaft are not constant.

FIGS. 3 and 4 show a conventional power transmission device from a seamer to a filler. In a conventional power transmission device, a timing belt 24 is stretched between a pulley 21 provided at an end of a seamer output shaft 20 and a pulley 23 provided on a filler input shaft 22. In this device, the positions of the Cima output shaft 20 and the filler input shaft 21 are determined,
I can't move. For this reason, the timing belt is hung with some slack, and as shown in FIG. 3 (a), in this example, the timing belt is tensioned by the idler pulley 26 of the idler device 25 from the inside to prevent slack and rotate. Has stabilized. In the example of FIG. 4, the timing belt is similarly tensioned by the idler pulley 30 from the outside.

However, since the diameter of the idler pulley for providing tension is smaller than the diameters of the pulleys 21 and 23 provided on the seamer output shaft and the filler input shaft, a considerably high speed rotation is required. In addition, a considerable load is applied due to its nature. In addition, since the bearing is used independently of the seamer body or the filler body, it is difficult to use a highly rigid bearing, the lubrication is not sufficient, and the bearing is easily worn. Usually, the idler pulley for tension is
In many cases, grease is sealed in a small-diameter bearing 27,
It is in a situation where it is easily worn. For this reason, the conventional Cima power transmission device has many problems due to wear of the idler pulley, and requires detailed maintenance to be repeated every short period. On the other hand, from the viewpoint of cost reduction and labor saving, a reduction in maintenance time and a longer maintenance interval are required, and further, a maintenance-free operation is required.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and a timing belt for transmitting power from a seamer to a filler can always be maintained at a constant tension. It is an object of the present invention to provide a power transmission device of a seamer capable of reliably ensuring the drive timing of the filler and shortening the maintenance time, extending the maintenance interval, and eliminating maintenance.

[0006]

In order to achieve the above object, the present inventor has conducted various studies. As a result, the timing belt can always have a proper tension without providing an idler device, and the timing deviation can be reduced. The present inventors have found that power can be transmitted from the seamer to the filler without causing any problem, and have reached the present invention.

That is, the power transmission device for a seamer according to the present invention comprises:
It has a main gear provided on the Cima output shaft and a driven gear meshing on the same plane as the main gear, and the shaft of the driven gear can be displaced along an arc around the Cima output shaft axis. And a driven pulley for transmitting power via a timing belt to a filler input shaft is fixed to the driven shaft, and the driven pulley is displaced along an arc around the axis of the seamer output shaft. It is characterized by being made possible. The driven shaft is rotatably supported by a swing casing provided so as to be swingable about the axis of the seamer output shaft, and the swing casing swings around the axis of the seamer output shaft. It can be configured to be able to swing along a circular arc. The swing casing is attached to a plurality of arc-shaped long holes provided on the same circumference formed on the flange of the output shaft casing of the seamer output shaft with bolts, thereby having a simple structure and reliably. It is desirable to be able to adjust and fix.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. In the figure, reference numeral 1 denotes a seamer output shaft extending from the seamer, which is supported by an output shaft casing 2 and a main gear 5 is fixed to a shaft end protruding from the casing. Reference numeral 6 denotes a driven gear engaged with the main gear 5 on the same plane, and is fixed to a driven shaft 7. The driven shaft 7 is rotatably supported by a swing casing 8 attached to the flange 3 of the output shaft casing 2, and a drive pulley 9 is fixed to a shaft end protruding from the case 8. On the other hand, a driven pulley 11 having the same pitch as the driving pulley 9 is disposed on the same plane on the filler input shaft 10, and a timing belt 12 is stretched between the driven pulley 11 and the driving pulley 9. Thus, the power of the Cima output shaft is transmitted to the filler input shaft.

The swing casing 8 has a plurality of (six in the illustrated embodiment) arc-shaped elongated holes 13 formed at equal intervals on the same circumference of the flange 3 of the output shaft casing.
(FIG. 2 (b)) is fixed by bolts 14 so as to be adjustable. Therefore, by loosening the bolt 14,
The swing casing 8 can swing around the axis O of the seamer output shaft 1 within the range of the arc angle of the elongated hole 13, and can adjust the mounting angle with respect to the seamer output shaft.

The seamer power transmission device of this embodiment is constructed as described above. By loosening the bolt 14 and swinging the swing casing 8, the driven shaft 7 swings and is directly connected to the drive shaft. The pulley 9 can be moved on an arc centered on the axis O of the seamer output shaft 1. At the time of the initial adjustment, the bolt 14 is loosened to swing the swing casing 8, and the drive pulley 9 is swung to a position where the timing belt 12 between the drive pulley 9 and the driven pulley 11 is appropriately stretched. The swing casing 8 is fixed at that position by tightening the bolt 14 at that position. Thereby, the tension of the timing belt can be easily adjusted. For example, if the swing casing 8 is rotated in the direction of arrow 15 from the state shown in FIG. 2A, the distance between the shafts of the driving pulley 9 and the driven pulley 11 becomes longer, so that the tension acts on the timing belt 12 accordingly. The timing belt becomes more tensed, and if it is swung in the direction opposite to the arrow, the tension of the timing belt is relaxed.

Accordingly, in a situation where the positional relationship between the seamer output shaft and the filler input shaft on the seamer side is fixed, the timing belt can always be kept in a properly stretched state without using an idler. Thereby, the rotation of the Cima output shaft and the rotation of the filler input shaft can always be transmitted accurately without deviation. Further, since the tension idler, which was conventionally required, is not required, the accompanying maintenance is also unnecessary.

Also, a seamer output shaft and a driven shaft on the seamer side,
In addition, the bearing of the filler input shaft on the filler side can be easily lubricated with oil circulation lubrication from the seamer body or filler body or an oil bath, and there is no need for lubrication between the pulley and the timing belt. Can be stretched.

[0013]

According to the present invention, the timing belt for transmitting power from the seamer to the filler can always be kept in an appropriate tension state without using an idler device, so that the power can be accurately transmitted from the seamer to the filler. Can be transmitted. Therefore, cans can be produced satisfactorily without deviation of the timing between the seamer and the filler. And since the idler for tension, which was required in the past, is unnecessary, wear and play due to the idler are eliminated, the performance is further improved, and maintenance is unnecessary or the maintenance period can be greatly extended,
Labor saving can be achieved.

According to the second and third aspects of the present invention, the driving pulley can be fixed at any position on an arc centered on the axis of the seamer output shaft. It can be adjusted, and it can be easily adjusted.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a power transmission device of a seamer according to an embodiment of the present invention.

FIG. 2A is a left side view of FIG. 1, and FIG.

FIG. 3 shows a conventional Cima power transmission device, in which (a) is a left side view and (a) is a front sectional view.

FIG. 4 is a left side view of another conventional Cima power transmission device in which an idler device is provided outside a timing belt.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cima output shaft 2 Output shaft casing 3 Output shaft casing flange 5 Main gear 6 Follower gear 7 Follower shaft 8 Swing casing 9 Drive pulley 10 Filler input shaft 11 Follower pulley 12 Timing belt 13 Slot 14 Bolt

Claims (3)

[Claims] 1. A seamer power transmission device for transmitting power from a seamer to a filler, comprising: a main gear provided on a seamer output shaft; and a driven gear meshing on the same plane as the main gear. A shaft of the driven gear is provided so as to be displaceable along an arc centered on the axis of the seamer output shaft, and a driven pulley that transmits power via a timing belt to a filler input shaft is fixed to the driven shaft. A power transmission device for a seamer, wherein the drive-side pulley is displaceable along an arc centered on the axis of the seamer output shaft. 2. The power transmission device for a seamer according to claim 1, wherein the driven shaft is rotatably supported by a swing casing provided so as to be able to swing around an axis of the seamer output shaft. 3. The power transmission according to claim 2, wherein the swing casing is attached to a plurality of arc-shaped long holes provided on the same circumference of a flange of the output shaft casing of the seamer output shaft by bolts. apparatus.