JPS60137464A - Device for coating long-sized material - Google Patents

Abstract

PURPOSE:To coat securely and uniformly a liquid on both surfaces of a long- sized material by providing a lower roller so that the roller may be immersed in the lubricating oil in a liquid vessel, and passing a coating member between the lower and an upper roller whose circumferential surfaces are brought into contact with each other. CONSTITUTION:The lubricating oil in a tank 16 is supplied by the operation of a pump 14 into a liquid vessel 11 to keep always a fixed liquid level. And a part of the coating member 9c of a lower roller 9 in the circumferential direction is always immersed in the lubricating oil. Under said conditions, when a long-sized band plate-shaped material is sent in one direction, an upper roller 8 and the lower roller 9 are reciprocally rotated, and the coating member 9c of the lower roller 9 is successively immersed in the lubricating oil. The whole circumferential surface of the member 9c is infiltrated with the lubricating oil in this way. The lubricating oil is coated on the lower surface of the material A when the oil is brought into contact with the lower surface. Since the oil is simultaneously adhered to the coating member 8c of the upper roller 8 and infiltrated into the member 8c, the upper surface of the material A is coated with the oil from the coating member 8c due to the infiltrating force of the oil.

Description

DETAILED DESCRIPTION OF THE INVENTION (Subject of the Invention/Field of Industrial Application) The present invention relates to a coating device for a long material. Used to apply lubricating oil to both sides of the

(Prior Art) Conventionally, a thin strip-shaped material is continuously fed and punched into a predetermined shape using a press machine, and drawing processing is performed simultaneously with the punching. In order to perform punching and drawing operations smoothly, lubricating oil is applied to the material before processing.

Fig. 1 shows a conventional example including a coating device for this purpose, in which a long strip-shaped material A is pinch-fed by feed rollers 1, 1, and is placed between an upper mold 2a and a lower mold 2b. is punched into a predetermined shape and squeezed by the lower chute 3.
It is designed to fall inwards. roller 1 and mold 2a,
2b, oil application rollers 4a and 4b are provided above and below with the material A in between so as to rotate as the material is fed. An oil tank 5 filled with lubricating oil B is provided above these rollers 4a and 4b, and this lubricating oil B is supplied to the stop hull pro a and the pipe 6.
b, the oil is discharged by its own weight from a plurality of nozzles 7 toward the roller 4a, and is applied to the upper surface of the material by flowing along the surface of the upper roller 4a. However, the application of lubricating oil to the lower surface of the material A was carried out by manually applying lubricating oil to the surface of the lower roller 4b using a brush (not shown) or the like. However, since this work is troublesome, punching and drawing are performed with insufficient oil applied to the bottom surface of material A, and as a result, defective molded products are often ordered. Furthermore, since the lubricating oil discharged from the nozzle 7 is not recovered, it is necessary to replenish the lubricating oil into the oil application tank 5 several times a day. The work was time-consuming, and in the end, a dedicated worker was required to manage the operation of this type of press machine.

(Objective of the Invention) The present invention has been made in view of the above-mentioned circumstances, and has a simple structure that allows stable application of lubricating oil to both sides of a long material and does not require the labor required in the past. The purpose is to provide a coating device that is

(Technical Means of the Invention) The coating device of the present invention is configured as follows. That is, the upper roller and the lower roller are rotatably provided parallel to each other and with their outer peripheral surfaces in contact with each other, and the upper roller and the lower roller are each a coating member whose outer peripheral surface is permeable. A liquid tank is provided below the lower roller, and the liquid in the liquid tank is configured to permeate the application member of the lower roller.

(Example) The present invention will be described below based on an example with reference to the drawings.

In FIG. 2, the upper roller 8 and the lower roller 9 are in a state corresponding to the rollers 4a and 4b shown in FIG. It is rotatable. That is, each shaft portion 8a of the upper roller 8 and lower roller 9
, 9a, a bearing fixedly attached to a machine body such as a press machine is inserted into the shaft groove 10a of the member 10.10 from above,
The bearing of the lower roller 9 is pivotally supported by a member 10, and the bearing of the upper roller 8 has a shaft portion 8a whose movement in the front and back direction is regulated by the member 10, and is pressed against the outer peripheral surface of the lower roller 9 by its own weight. It is supposed to be done.

The upper roller 8 and the lower roller 9 each have a main body portion 8b,
9b is made of a cylindrical body made of metal, for example, and a coating member 8c made of nonwoven fabric is provided on the circumferential surface of the main body parts 8b and 9b.

9c is wrapped and attached with adhesive. The application members 8c and 9'c are preferably made of permeable and soft material such as felt or nonwoven fabric, and are designed to have strong permeability in the axial direction of the upper roller 8 and lower roller 9, respectively. It is provided.

A box-shaped liquid tank 11 is provided below the lower roller 9 so as to cover the lower roller 9 from below.
The above-mentioned bearing, like the member 10, is fixedly attached to the fuselage.

One side plate 11a of the liquid tank 11 parallel to the lower roller 9 is provided with an inlet port 12 at the center and outlet ports 1-13, 13 on both sides thereof. A pump 14 is connected to the supply boat 12 through a pipe line 15, and the lubricating oil in the tank 16 is supplied from this supply port 12 into the liquid tank 11. 17 is connected and liquid! The lubricating oil in 11 is discharged into tank 16 via filter 18. The discharge port 13 is located at a position several millimeters higher than the lowest end of the outer peripheral surface of the lower roller 9 in the height direction.
The lubricating oil B supplied from the supply boat 12 into the liquid tank 11 is maintained at a level such that the lower roller 9 is immersed by several millimeters. As IvJ oil B, white kerosene, punch oil, or a mixture of these in an appropriate ratio can be used, and even oils with low viscosity can be used. Various types of pumps can be used as the pump 14, but a diaphragm pump or the like that utilizes the vibration of an electromagnet from a commercial AC power source is small and inexpensive. Although not shown in the drawings, a switch for adjusting the discharge amount of the pump 14, an indicator light for indicating the operation of the pump 14, a power switch, and the like are provided.

Next, the operation of the coating device described above will be explained.

A long strip-shaped material A is inserted between the upper roller 8 and the lower roller 9, but since the applicator members 8c and 9c are soft, the part that comes into contact with the material A is elastically compressed. ,
Therefore, the applicator members 8c and 9c other than the portion through which material A is inserted remain in contact with each other.

Now, by the operation of the pump 14, the lubricating oil in the tank 16 is supplied into the liquid tank 11 through the pipe line 15 and the supply port 12, and when the liquid level reaches the position of the discharge boat 13, the discharge boats 16 on both sides The lubricating oil B is discharged into the tank 16 through the pipe 17 and the filter 18, and as a result, the clean lubricating oil B is constantly flowing in the liquid tank 11 and maintained at a constant level. As a result, the application member 9c of the lower roller 9 is partially immersed in the lubricating oil B in the circumferential direction. By feeding the material A in one direction, for example in the direction of the arrow shown in FIG.
rotates in the direction of the arrow in the figure, so the coating member 9c of the lower roller 9 is sequentially immersed in the lubricating oil B, and the lubricating oil permeates or adheres to the entire circumferential surface. The lubricating oil that has permeated or adhered to the application member 9C is applied when the application member 9C contacts the lower surface of the material A, and the application member 8 of the upper roller 8
By contacting both ends of c, it also adheres and permeates this application member 8c. In the coating member 8c of the upper roller 8, the lubricating oil penetrates into the center and covers the entire circumferential surface, and the upper surface of the material A that comes into contact with this is coated with the lubricating oil.

As mentioned above, both sides of material A are reliably and evenly coated with oil. All the lubricating oil that is not applied to the material A is returned to the liquid tank 11, so there is no wastage of lubricating oil, and the lubricating oil can be applied continuously for a long time as long as the lubricating oil in the tank 16 does not run out. Oil can be applied automatically over the period of time. Therefore, the labor involved in replenishing lubricating oil, which was conventionally required, is greatly reduced, and the operational management of this type of press machine becomes much easier, and defective molded products due to lack of lubricating oil are prevented. Furthermore, according to the above-mentioned applicator, even lubricating oil with low viscosity can be reliably applied.
For example, if white kerosene as mentioned above is used as a lubricant,
Since the lubricating oil adhering to the molded product after press molding dries naturally, it is possible to omit the effort of cleaning the molded product each time, and there is less risk of contaminating the press machine and its surrounding environment.

In the embodiments described above, felt or nonwoven fabric was used as the applicator members 8c and 9c, but other materials may be used, and the upper roller 8 and lower roller 9 may be entirely constituted by the applicator member. . In this case, the upper roller 8
In order to adjust the contact pressure between the lower roller 9 and the material A, a suitable weight or spring can be used. The upper roller 8 does not need to be directly above the lower roller 9, and the height positions thereof can be configured to be adjustable. The number of supply ports 12 and discharge boats 13 is arbitrary, and they can also be provided at other suitable locations.Also, the discharge ports 3 can be omitted and only the consumed amount of lubricating oil is transferred into the liquid tank 11. It can also be configured to replenish. Alternatively, a suitable intermediate roller may be provided between the lubricating oil B in the liquid tank 11 and the lower roller 9, and the lubricating oil may be applied to the application member 9c of the lower roller 9 via this intermediate roller. The shaft portion 9a of the lower roller 9 is supported by a member 10;
This may be supported by providing shaft holes in the side plates at both ends of the liquid tank 11. Further, the liquid tank 11 may have an arcuate cross-sectional shape. As the material A, materials other than those in the form of a strip, such as wire rods, can also be used. Further, instead of lubricating oil, a chemical solution or paint can be used and applied to the elongated material.

(Effects of the Invention) According to the present invention, liquid can be reliably and uniformly applied to both sides of a long material. This reduces wasteful consumption of liquid, and by replenishing the consumed amount of liquid in the liquid tank using an appropriate pump, it becomes possible to perform continuous and automatic application. The conventional work for replenishing liquid is significantly reduced.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a press machine including a coating device showing a conventional example, FIGS. 2 and 3 show an embodiment of the present invention, and FIG.
The figure is a sectional side view and FIG. 3 is a front view including a liquid circuit. 8... Upper roller, 9... Lower roller, 8c, 9c・
... Application member, 11... Liquid tank, A... Material, B...
・Lubricating oil (liquid). Applicant NC Aero Co., Ltd. 1.1 Figure 1 Figure 2!

Claims (1)

[Claims] / The upper roller and the lower roller are rotatably provided parallel to each other and with their outer peripheral surfaces in contact with each other, and the upper roller and the lower roller have their respective outer peripheral surfaces. The elongated material is made of a permeable coating member, and is configured such that a liquid tank is provided below the lower roller, and the liquid in the liquid tank permeates into the coating member of the lower roller. coating equipment. 2. The apparatus for coating a long material according to claim 1, wherein the upper roller is brought into contact with the lower roller due to its own weight. 3. The coating device for a long material according to claim 7 or 2, wherein the lower roller is immersed in the liquid in the liquid tank.