JPH07195022A - Device for controlling amount of oil to be applied and oil coating method - Google Patents

Abstract

PURPOSE:To easily and precisely control the amt. of oil such as lubricating oil to be applied by providing plural wipers respectively having a knife in parallel to form a slit at the side edge and operating at least one wiper to adjust the width of the slit. CONSTITUTION:The shaft 12 of a cylinder 11 fixed to a pedestal 10 is raised to rotate a gear 13 connected to the shaft to the left, and a gear shaft 15 to which a wiper 14 is fixed is also rotated to the left. When the gear 13 is rotated to the left, another gear 17 meshed with the gear 13 is rotated to the right, and another wiper 19 fixed to the gear shaft 18 is rotated to the right. Consequently, a slit 21 formed between both knives 16 and 20 along the wipers 14 and 19 is opened narrowly. Meanwhile, when the shaft 12 of the cylinder 11 is lowered, the width of the slit 21 is increased. Accordingly, if the oil-coated aluminum sheet, etc., are passed through the slit 21, the amt. of oil to be applied is precisely adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil coating amount adjusting device.

[0002]

2. Description of the Related Art Recently, the amount of aluminum D / I cans used for beer and soft drinks has been increasing. Arminiu D / I cans are coated with cupping lubricant on both sides of aluminum rolls, then press-molded, and after D / I molding,
It is manufactured through a plurality of processes. The problem is that if the amount of the cupping lubricating oil supplied is too small, defective molding and poor quality occur, and if it is too large, jamming ((conveyance failure) is likely to occur in the D / I press process, and further defective cleaning is likely to occur in the cleaning process. Therefore, the amount of oil applied in this step is 400 mg /
It is adjusted to about m ² to 700 mg / m ² .

There are a method of adjusting the amount of oil applied based on the properties of the lubricating oil and a method of adjusting the amount by a mechanical method. The former is a method of adjusting the viscosity of the lubricating oil, diluting it with an appropriate diluent, or applying oil in an emulsion state.
However, it is difficult to adjust the amount of oil coating to a satisfactory range only by these methods, and it is usually used in combination with mechanical means. As a mechanical means, there is often used a method in which a lubricating oil is once applied to a rolling plate, and then an excessive lubricating oil is mechanically removed by increasing a squeezing pressure of a roll of an oil lubricator. This is economical in that existing equipment can be adopted, but this roll cannot adjust the pressure on the throttle surface even if the throttle pressure is increased, and therefore cannot be adjusted when the viscosity of the lubricating oil becomes high. A new type lubricator that uses a three-roll system that allows the amount of oil to be adjusted has also been developed,
Existing equipment is wasted and uneconomical because it has to be built.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide an oil coating amount adjusting device capable of easily and accurately adjusting the amount of lubricating oil or the like.

[0005]

According to the present invention, an elastic spatula (16, 20) is arranged so that a slit is formed at a side edge thereof.
And a slit width adjusting member for adjusting the width of the slit by moving at least one of the wipers (14, 19).

From aluminum rolled plate to aluminum D /
In manufacturing the I can, a rolled aluminum plate is applied with oil through an oil tank as shown in FIG. This device is generally used for emulsion lubrication, but is not particularly limited to this type and may be a system in which neat oil is directly applied, or another emulsion lubrication system, for example, a spray system. A refueling system may be used. In the figure, (1) is an aluminum plate, (2) is an oil tank,
(3) shows a squeezing roll, and (4) shows a cupping press. As described above, the amount of oil applied can be adjusted to some extent by adjusting the squeezing pressure of the squeeze roll (3), but in the present invention, instead of this squeeze roll, an oil amount adjusting device capable of adjusting the slit width is used. .

FIG. 2 is a schematic view of an oil amount adjusting device in which two wipers are interlocked. A scraper opening / closing cylinder (11) is attached to the pedestal (10). The shaft (12) of the cylinder (11) is a hydraulic pump (not shown).
It can be moved up and down with high precision by connecting with. Shaft (12)
When is moved upward, the gear (13) connected to it rotates to the left, and the long gear shaft (15) to which the wiper (14) is attached also rotates to the left accordingly. Wiper (1
A spatula (16) is installed in 4) along the gear shaft.
The gear (17) meshes with the gear (13), and the gear (13)
When is rotated to the left, it correspondingly rotates to the right. As a result, the gear shaft (18) of the gear (17) (arranged in parallel with the gear shaft (15)) also rotates to the right, and the wiper (19) installed on this also rotates to the right. A spatula (20) is installed on the wiper (19) along the gear shaft (18). As a result, the opening of the slit (21) formed between the spatula (16) and the spatula (20) becomes narrow. On the contrary, the slit width can be increased by lowering the shaft (12). When the gear (13) and the gear (17) are separated in this device, the slit (2
1) can be adjusted only by moving the wiper 14, and the pressing of the aluminum plate against the spatula 20 can be controlled by this. This is also one aspect of the present invention. Adjustment in the slit is preferably performed by interlocking the gears (13) and (17) in terms of stability.

When the aluminum plate coated with oil in the oil supply tank passes through the slit (21), oil is peeped by the spatula of the wiper. The amount of residual oil can be achieved by adjusting the slit width. Since the slit width can be adjusted with high accuracy and therefore the throttle pressure can also be changed with high accuracy, the amount of the lubricating oil adhered can be easily adjusted with high accuracy.

The material of the spatula of the oil coating amount adjusting device used in the present invention is an elastic body, particularly rubber hardness (JIS-K-6301).
It is an elastomer of 50 to 90 degrees, more preferably about 60 to 80 degrees. If the hardness is higher than 90 degrees, it is difficult to uniformly apply a predetermined amount of lubricating oil in the width direction of the aluminum plate, the amount of oil applied is reduced, and scratches are likely to occur on the plate surface. Hardness 5
If it is lower than 0 degree, it is difficult to squeeze the lubricating oil, it is difficult to apply a predetermined amount of lubricating oil uniformly in the width direction of the aluminum plate, and the amount of applied oil increases.

Preferred elastic bodies are chloroprene, acrylic rubber, nitrile rubber, urethane rubber, fluororubber and the like. These elastic bodies are hard to swell due to hydrocarbons, synthetic esters, natural fats and oils, fatty acids, alkyl alcohols, surfactants, extreme pressure additives, anticorrosives, etc., which are often mixed with lubricating oils, and they are hard. It also has excellent wear resistance.

The upper and lower wipers are preferably attached at an angle that bisects the aluminum plate, and is preferably 45 degrees. Further, the wiper may be provided with a large number of fine wavy grooves. A supplementary pressure system may be attached to a wide aluminum plate.

Example 1 Instead of the squeezing roll (3) of the couple lubricator shown in FIG. 1, the oil coating amount adjusting device shown in FIG. 2 was attached. Cupping lubricating oil (viscosity: 20 cSt 40 ° C, acid value:
10 mg / KOH g, saponification value: 100 mg / KOH g)
100% by weight of pure oil was added to the mixture, and an aluminum plate having a thickness of 0.3 mm and a width of 513 mm was fed at a rate of 0.4 m / sec and passed through an oil coating amount adjusting device.

Table 1 shows the material, hardness, and squeezing pressure of the spatula of the oil amount adjusting device used, and the obtained oil amount. For comparison, Table 1 also shows the oil coating amount when the original squeezing roll (3) was used as it was without using the oil coating amount adjusting device of the present invention.

Measurement of the amount of applied oil An aluminum plate coated with lubricating oil was cut into an appropriate size (for example, 300 × 300 mm ² ) and this was extracted with n-hexane, and the extraction solvent was transferred to a pre-weighed container and the solvent was removed. Was distilled off and the weight of the container in which the lubricating oil remained was measured to calculate the amount of oil applied.

[0015]

[Table 1]

Example 2 Using the same apparatus as in Example 1, another cupping lubricating oil (viscosity: 90 cSt (40 ° C.), acid value: 10 mg was applied to an aluminum plate.
/ KOH g, saponification value: 120 mg / KOH g) was applied and the amount of oil applied was measured. The results are shown in Table 2.

[0017]

[Table 2]

[0018]

By attaching the oil coating device of the present invention to an existing lubricator, a desired amount of lubricating oil can be applied to a rolling plate without adjusting the viscosity of the lubricating oil. As a result, it is possible to easily adjust the adhering amount of the cupping lubricating oil required in the production of aluminum D / I cans, etc., and prevent molding defects, quality defects, conveyance defects and cleaning defects.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a conventional copper applicator.

FIG. 2 is a schematic view of an oil amount adjusting device of the present invention.

[Explanation of symbols]

1 Aluminum plate, 2 Oil tank, 3 Squeeze roll, 4
Cupping press, 10 pedestal, 11 scraper opening / closing cylinder, 12 shaft, 13 gear, 14 wiper, 15 gear shaft, 16 spatula, 17 gear, 18
Gear shaft, 19 wiper, 20 spatula, 21 slit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsumi Kondo 150 south of Seto-cho, Akaban-gun, Okayama Mitsubishi Material Co., Ltd. Okayama factory (72) Shinichi Ozaki 150 south of Seto-cho, Aka-gun, Okayama Mitsubishi Ma Terial Co., Ltd. Okayama Plant (72) Inventor Yu Adachi 2-3 1-3 Shibukawa-cho, Yao-shi, Osaka Japan Quaker Chemical Co., Ltd. (72) Inventor Masayuki Yamakawa 2-3 1-3 Shibukawa-cho, Yao-shi, Osaka No. Japan Quaker Chemical Co., Ltd. (72) Inventor Takashi Asada 2-3 1-3 Shibukawa-cho, Yao City, Osaka Prefecture Japan Quaker Chemical Co., Ltd.

Claims (2)

[Claims] 1. The width of the slit by moving two wipers (14, 19) each having elastic spatula (16, 20) arranged so that a slit is formed at a side edge portion and at least one wiper. Oil amount adjusting device having a slit width adjusting member for adjusting the amount of oil. 2. An oil coating method using the oil coating amount adjusting device according to claim 1.