JP3695062B2 - Cima power transmission - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a power transmission device for a seamer for transmitting power from the seamer to a filler.
[0002]
[Prior art]
In the can manufacturing process, the rotation of the filler during filling takes power from the seamer side and is driven with a certain harmony (timing) in relation to the seamer, so that the can after filling the inner solution is accurately applied to the seamer. It is delivered and tightened. Since the can cannot be delivered if the rotation timing of the filler and seamer is out of order, a timing belt is used for power transmission from the seamer to the filler so that the rotation timing can be reliably obtained. However, the combination of the filler and the seamer may be from different manufacturers or the specifications may be different even in the same manufacturer, and the position and distance between the seamer output shaft and the filler input shaft are not constant.
[0003]
A conventional example of a power transmission device from a seamer to a filler is shown in FIGS. In the conventional power transmission device, a timing belt 24 is stretched between a pulley 21 provided at an end of the seamer output shaft 20 and a pulley 23 provided on a filler input shaft 22. In this apparatus, the positions of the seamer output shaft 20 and the filler input shaft 21 are fixed and cannot be moved. For this reason, the timing belt is hung with a slight slack, and as shown in FIG. 3A, in this example, the idler pulley 26 of the idler device 25 tensions the timing belt from the inside to prevent the slack and rotate. Is stabilized. In the example of FIG. 4, tension is applied to the timing belt by the idler pulley 30 in the same manner from the outside.
[0004]
However, since the diameter of the idler pulley that applies tension is smaller than the diameters of the pulleys 21 and 23 provided on the seamer output shaft and filler input shaft, a considerable high-speed rotation is forced. In addition, a considerable load is applied due to its nature. Moreover, since it is used separately from the seamer body or filler body, it is difficult to use a highly rigid bearing, and the lubrication is not sufficient and the bearing is likely to be worn. Usually, many idler pulleys for tension are those in which grease is enclosed in a small-diameter bearing 27 and are easily worn. For this reason, the conventional Cima power transmission device has many problems due to wear of the idler pulley, and there is a problem that fine maintenance is required repeatedly every short period. On the other hand, from the viewpoint of cost reduction and labor saving, shortening of the maintenance time and long maintenance interval are required, and further, no maintenance is required.
[0005]
[Problems to be solved by the invention]
The present invention has been devised in view of the above circumstances, and the timing belt for transmitting power from the seamer to the filler can always be maintained in a constant tension state, so that the driving timing of the seamer and the filler can be surely taken. Furthermore, it is an object of the present invention to provide a Cima power transmission device that can shorten the maintenance time, extend the maintenance interval, and eliminate maintenance.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, as a result of various studies, the present inventor has been able to always give a proper tension to the timing belt without providing an idler device, so that power from the seamer to the filler can be obtained without causing a timing shift. It has been found that it can be transmitted and has reached the present invention.
[0007]
That is, a power transmission device for a seamer according to the present invention includes a main gear provided on a seamer output shaft and a driven gear meshing on the same plane as the main gear, and the shaft of the driven gear is used as the seamer output shaft. A drive-side pulley that transmits power via a timing belt to the filler input shaft is fixed to the driven shaft so that it can be displaced along an arc centered on the axis, and the drive-side pulley is connected to the seam output shaft. It is characterized by being displaceable along an arc centered on the axis. The driven shaft is rotatably supported by a swing casing provided so as to be swingable about the shaft center of the seamer output shaft, and the shaft center of the seamer output shaft is centered by the swing of the swing casing. It can comprise so that it can rock | fluctuate along the circular arc. The rocking casing has a simple structure and is surely secured by being bolted to a plurality of arc-shaped elongated holes provided on the same circumference formed in the flange of the output shaft casing of the seamer output shaft. It can be adjusted and fixed.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 and 2.
In the figure, reference numeral 1 denotes a seam output shaft protruding from a seamer, which is supported by an output shaft casing 2 and a main gear 5 is fixed to a shaft end portion protruding from the casing. Reference numeral 6 denotes a driven gear that meshes with the main gear 5 on the same plane, and is fixed to the 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 driving 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 arranged 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. The power of the seamer output shaft is transmitted to the filler input shaft.
[0009]
The rocking casing 8 has a plurality of arc-shaped stepped elongated holes 13 (six in the illustrated embodiment) formed on the same circumference of the flange 3 of the output shaft casing (six in the illustrated embodiment). )) Is fixed by bolts 14 so as to be adjustable. Therefore, by loosening the bolt 14, the swing casing 8 can swing within the arc angle range of the elongated hole 13 around the axis O of the seamer output shaft 1, and the mounting angle with respect to the seamer output shaft is adjusted. be able to.
[0010]
The seamer power transmission device of the present embodiment is configured as described above. By loosening the bolt 14 and swinging the swing casing 8, the driven pulley 7 swings and the drive pulley 9 directly connected thereto is provided. It can be moved on an arc centered on the axis O of the seamer output shaft 1. During 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 properly stretched. The swing casing 8 is fixed at the position by tightening the bolt 14 at the 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 the arrow 15 from the state of 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 correspondingly. The tension becomes more tensioned and the tension of the timing belt is relaxed by swinging in the direction opposite to the arrow.
[0011]
Therefore, in a situation where the positional relationship between the seamer output shaft on the seamer side and the filler input shaft is fixed, the timing belt can always be kept in an appropriate tension state without using an idler. Thereby, it is possible to always accurately transmit the rotation of the seamer output shaft and the rotation of the filler input shaft without being out of timing. In addition, since the tension idler that has been required in the past is unnecessary, the maintenance associated therewith is also unnecessary.
[0012]
In addition, the seamer output shaft and driven shaft on the seamer side and the bearing on the filler input shaft on the filler side can be easily lubricated with oil circulation lubrication or oil bath from the seamer body or filler body, and between the pulley and the timing belt Since no lubrication is required, the maintenance period can be greatly extended.
[0013]
【The invention's effect】
According to the present invention, the timing belt for transmitting power from the seamer to the filler can always be kept in an adequately tensioned state without using an idler device, so that power can be accurately transmitted from the seamer to the filler. . Therefore, canned products can be manufactured satisfactorily without the timing of the seamer and filler being out of order. And, since the tension idler that was required in the past is unnecessary, wear and backlash due to the idler are eliminated, the performance is further improved, maintenance is unnecessary, and the maintenance period can be greatly extended, thereby saving labor. Can do.
[0014]
Further, the drive moving pulley so also can be fixed at any position on an arc around the axis of the CIMA output shaft, it is possible to arbitrarily adjust the tension of the timing belt can Thus also easily adjusted .
[Brief description of the drawings]
FIG. 1 is a front sectional view of a power transmission device for a seamer according to an embodiment of the present invention.
2A is a left side view of FIG. 1, and FIG. 2B is an AA arrow view.
FIGS. 3A and 3B show a conventional seama power transmission device, in which FIG. 3A is a left side view thereof, and FIG.
FIG. 4 is a left side view of another conventional seamer 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 Flange of output shaft casing 5 Main gear 6 Driven gear 7 Driven shaft 8 Oscillating casing 9 Driving pulley 10 Filler input shaft 11 Driven pulley 12 Timing belt 13 Long hole 14 Bolt

Claims (1)

A power transmission device for a seamer 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, the driven gear A driven pulley that transmits power to the filler input shaft via a timing belt is fixed to the driven shaft , and the driven side is fixed to the driven shaft. The pulley can be displaced along an arc centered on the axis of the seamer output shaft, and the driven shaft is rotated by a swing casing provided so as to swing about the shaft center of the seamer output shaft. The oscillating casing is freely supported, and is attached to a plurality of arc-shaped elongated holes provided on the same circumference of the flange of the output shaft casing of the seamer output shaft so as to be adjustable by bolts. Power transmission device Cima which features and.

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