JP2861903B2 - Seaming roll lubrication device and seal ring - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating device and a seal ring for a seaming roll, and more particularly to a lubricating device and a seal ring for a seaming roll for preventing oil leakage during oil lubrication.

[0002]

2. Description of the Related Art Conventionally, lubrication of a seaming roll in a seamer for winding a can is performed by filling grease inside the seaming roll. Since the grease has high viscosity, lubrication to the seaming roll was possible without leakage to the outside without special consideration of the seal only by the clamp. However, in the case of grease lubrication, since the resistance at the initial stage of rotation is particularly large, there is a problem that the rising of the seaming roll does not follow the rotation of the can. This was one of the hindrance factors in further promoting the thinning of materials.

[0003]

Accordingly, the present applicant has invented a lubricating device for lubricating a seaming roll with oil as a means for solving the above-mentioned problem of lubricating a seaming roll with conventional grease. It was proposed (Japanese Patent Application No. 7-202750). The present invention is an improved invention of the prior application. Conventionally, in a seamer, a winding dimension adjusting mechanism employs a method of rotating a seaming roll pin to adjust a deviation amount of the seaming roll eccentric with respect to the pin, as shown in FIG. A split groove is formed in the seaming lever to form a split mold so that the seaming roll pin can be tightened and adjusted.

Further, the seaming roll pin is rotatable up to 35 ° in the loosening direction and up to 30 ° in the tightening direction with reference to the standard seam roll pin mounting position for adjusting the amount of deviation of the seaming roll. Therefore, if oil lubrication is performed in the lubrication path of “seaming head” → “seaming shank shaft” → “seaming lever” → “seaming roll pin” → “seaming roll”, “seaming flavor” and “seaming A lubricating path is formed between the “mining roll pins” and the split groove, and oil may leak from the groove. Therefore, in the case of oil lubrication, there is a problem in that oil leakage, which did not need to be considered in the case of highly viscous grease, and a reduction in the amount of oil supplied to the seaming roll is likely to occur.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and simultaneously prevents oil leakage and oil delivery between a seaming lever and a seaming roll pin, and improves oil lubrication with a simple structure. An object of the present invention is to provide a lubricating device for a seaming roll that can be used and a seal ring used for the lubricating device.

[0006]

A lubricating apparatus for a seaming roll according to the present invention for solving the above-mentioned problems is a lubricating apparatus for a seaming roll for lubricating a seaming roll by using an oil. A fitting groove is formed on the outer periphery of the seaming roll pin, and a sealing ring having an oil supply chamber and an oil draining chamber is fitted and supported in the fitting groove, and the seaming lever and the seaming are connected via the seal ring. An oil lubrication path is formed between the roll pin and the roll pin.

The oil supply room has an oil supply through-hole communicating with an oil supply passage formed in the seaming roll pin, and the oil supply room has a discharge hole communicating with an oil supply passage formed in the seaming roll pin. An oil through-hole is formed, and even if the seaming roll pin is rotated from the reference position with respect to the seaming lever by a maximum of 35 ° in the direction of loosening and a maximum of 30 ° in the direction of tightening, the oiling chamber is sealed. The oiling room always faces the oiling path formed on the seaming lever, the oil draining room always faces the oiling path formed on the seaming lever, and the oiling room and the oil draining room are connected to the seaming lever. It is configured so as to be isolated from the groove.

The seal ring used in the lubricating device for a seaming roll according to the present invention is a seal ring having a substantially U-shaped cross section in which an oil flow path is formed along the outer periphery, wherein the oil flow path has a seal protrusion. By the portion, a refueling room in which a refueling through hole is formed, a refueling room in which a refueling through hole is formed, and a split groove formed in a seaming lever and the refueling chamber. It is configured to be divided into a sealing room that blocks off the oil draining room. By forming the seal ring with an elastic material, the seal ring can be easily mounted on a seaming roll.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side sectional view of a lubricating device for a seaming roll according to the present invention. In the figure,
1 is a seaming head, 2 is a seaming shank shaft, 3 is a seaming lever, 4 is a seaming roll pin, 5 is a seaming roll, 6 is a bearing, and 7 is a groove of the seaming lever. It is the same as a conventional winding device. The first seaming roll and the second seaming roll are supported by the seaming lever 3 as shown in FIG. 2, but only one of the seaming rolls is shown in FIG.

In the apparatus having the above-mentioned structure, according to the present invention, as shown in FIGS. 1 and 2, a lubrication path comprising an oil supply path a for oil lubrication and an oil discharge path b between the seaming head and the seaming roll. Are formed. Refueling path a
From the oil reservoir provided in the seaming head 1
Seaming head 1 → Seaming shank shaft 2 →
The path from the seaming lever 3 to the seaming roll pin 4 to the seaming roll 5 is formed, and the oil discharge path is formed in the reverse order, and the oil returning from the seaming roll is passed to the seaming lever. Collected or
Alternatively, it is returned to the oil reservoir to repeat circulation with the seaming roll.

On the way, a path between the seaming lever 3 and the seaming roll pin 4 is formed by a specially shaped seal ring 11 in a fitting groove 10 formed on the outer periphery of the seaming roll.
And the oil is delivered through the seal ring 11. The seal ring 11 is formed of a stretchable elastic material such as rubber, and has a substantially U-shaped cross section as shown in FIGS. 3 to 5, and an oil flow path is formed along the outer periphery thereof. and that although, the oil passage is partitioned by a seal projection 12 ₁ to 12 ₃ to 3 rooms.
One of the chambers has an oil supply through hole 13 communicating with the oil supply path a formed in the seaming roll pin 4 and faces the open end 8 of the oil supply path a formed in the seaming lever 3. A refueling room 14 is provided.
The other room has an oil discharge through hole 15 communicating with the oil discharge passage b formed in the seaming roll pin, and faces the opening end 9 of the oil discharge passage b formed in the seaming lever. This is a waste oil chamber 16. Still another chamber has no through hole, faces the split groove 7 formed in the seaming lever, and is used for a seal for blocking the split groove from the oil supply chamber 14 and the oil drain chamber 16. It is room 17. The seal ring 11 is provided with a positioning protrusion 18 formed on an inner peripheral portion thereof so that the fitting groove 1 is formed.
0 and is fixed so as not to rotate.

The circumferential arrangement angles of the three rooms are shown in FIG.
Even if the seaming roll pin is rotated from the standard mounting position shown in (b) to adjust the seaming shift amount, the refueling chamber 14 is displaced from the open end 8 of the refueling path a formed in the seaming lever. Or, the oil draining chamber 16 is displaced from the opening end 9 of the oil draining path b formed in the seaming lever, and further, the oil refilling chamber 14 and the oil draining chamber 16 face the split groove 7. Must be arranged in such a way that there is no

In the ordinary seaming roll device, the rotation angle of the seaming roll pin for adjusting the amount of deviation of the seaming roll is 35 ° at the maximum in the winding direction and 35 ° in the tightening direction from the standard position shown in FIG. The maximum is 30 °.
Therefore, the refueling room 8 and the oil discharging room 16
The opening end of the refueling path a can be rotated by 35 ° counterclockwise from the reference position as shown in FIG. 2A or by 30 ° clockwise from the reference position as shown in FIG. In order for the part 8 to always face the oil supply room and the open end 9 of the oil discharge passage b to always face the oil discharge room, the oil supply room 14 and the oil discharge room 16 must have at least 65 degrees of outer circumference. The surface must be open. In the present embodiment, the refueling room is set to about 125
°, room for oil drain about 105 °, room for seal about 130 °
(Each is formed at an angle between the centers of the seal protrusions), but the range is not limited to the angle as long as the above condition is satisfied.

In the above description, the lubrication of one seaming roll is described. However, the lubricating device for the seaming roll according to the embodiment of the present invention similarly applies to the first seaming roll and the second seaming roll. , And both rolls have a common oil discharge path inside the seaming shank shaft.

The lubricating device for a seaming roll according to the present invention is configured as described above. The oil that has passed through the seaming lever 3 from the seaming shaft 2 enters the oil supply chamber 14 of the seal ring 11, Flows into the oil supply path a formed in the seaming roll pin 4 from the oil supply through hole 13 formed at the bottom, and reaches the bearing space of the seaming roll from the lower end opening end of the seaming roll pin. The bearing is lubricated by rotating the seaming roll during winding.

The oil that has passed through the bearing space of the seaming roll rises along the oil discharge path in the seaming roll pin from the inlet of the oil discharge path b formed in the upper part of the bearing space, and the oil discharge chamber of the seal ring. 16 and returns to the oil reservoir through the seaming lever 3 and the seaming shank shaft and the seaming head. Lubrication is performed by the following repetition. In the lubrication route described above, according to the lubricating device for a seaming roll of the present invention, even if the amount of leaning of the seaming roll is adjusted to the maximum, the refueling and draining rooms always have the lubrication route of the seaming lever. And a position connected to the oil drainage path, respectively, and neither of them is located at a position that does not touch the split groove. Accordingly, the seal ring ensures the oil lubrication path between the seaming lever and the seaming roll pin, thereby preventing oil leakage.

The preferred embodiment of the present invention has been described above.
The present invention is not limited to this, and various design changes can be made within the scope of the technical idea. For example, the seal ring does not necessarily have to be a complete ring, but may be formed so as to prevent the oil supply chamber and the oil discharge chamber from communicating with the split groove of the seaming lever. Approximately 2 / with opening missing part corresponding to room
It is also possible to form a three-ring shape.

[0018]

According to the present invention, oil leakage between the seaming lever and the seaming roll pin can be prevented and the oil can be transferred at the same time, and the oil lubrication can be improved. The oil supply path and the oil discharge path can be formed at the same time by one seal ring. Since the conventional groove is provided, the oil supply path and the oil discharge path are separated from each other to avoid the position of the groove. The construction can be significantly simplified as compared to the case where a separate seal ring has to be used.

Further, the seal ring of the present invention has a simple structure and can be easily manufactured, and even if the amount of deviation of the seaming roll is adjusted to the maximum, oil leakage between the seaming lever and the seaming roll pin can be surely prevented. Oil can be reliably delivered.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a lubricating device for a seaming roll according to the present invention.

FIG. 2 is a view taken in the direction of arrows AA in FIG. 1; FIG.
Rotated state, (b) is in the standard mounting position,
(C) has shown the state rotated by 30 degrees from the mounting standard position in the direction of stronger winding.

FIG. 3 is a plan view of the seal ring according to the embodiment of the present invention.

FIG. 4 is a side view thereof.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

[Explanation of symbols]

1 seaming head 2 seaming shank shaft 3 seaming lever 4 seaming roll pin 5 seaming roll 7 split groove 10 groove 11 seal ring 12 ₁ to 12 ₃ sealing projection 13 the oil supply holes 14 the oil supply chambers 15 discharge Oil through hole 16 Oil drain room 17 Sealing room 18 Positioning protrusion a Oil feed path b Oil drain path

Claims (4)

(57) [Claims] In a lubricating apparatus for a seaming roll for lubricating a seaming roll with oil, a fitting groove is formed on an outer periphery of a seaming roll pin fitted and supported by a seaming lever, and oil is supplied to the fitting groove. Characterized in that a seal ring having an oil chamber and an oil drain chamber is fitted and supported, and an oil lubrication path is formed between the seaming lever and the seaming roll pin via the seal ring. Roll lubrication device. 2. An oil supply through-hole communicating with an oil supply passage formed in a seaming roll pin is formed in the oil supply room, and an oil discharge passage formed in the seaming roll pin is communicated with the oil discharge room. Even if the seaming roll pin is rotated from the reference position by a maximum of 35 ° in a loosening direction and a maximum of 30 ° in a tightening direction from the reference position with respect to the seaming lever, the oil supply chamber is formed. Is always facing the oiling path formed in the seaming lever, the oil draining room is always facing the oil draining path formed in the seaming lever, and seaming the oiling room and the oil draining room. The lubricating device for a seaming roll according to claim 1, wherein the lubricating device is isolated from a groove of the lever. 3. A seal ring having an oil flow path formed along its outer periphery and having a substantially U-shaped cross section, wherein the oil flow path is formed with a lubricating through hole by a seal projection. A room, an oil draining room in which an oil draining through hole is formed, and a sealing room that cuts off a split groove formed in a seaming lever and the oiling room and the oil draining room. A seal ring characterized by being made. 4. The seal ring according to claim 3, wherein said seal ring is formed of an elastic material.