JPS638819B2 - - Google Patents

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 press machine continuously feeds a thin strip of material and punches it into a predetermined shape.
At the same time as this punching, drawing is performed. 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 pitch-fed by feed rollers 1, 1, and an upper mold 2a.
It is punched out into a predetermined shape and squeezed by the lower die 2b and falls into the chute 3 below. Between the roller 1 and the molds 2a and 2b, oil application rollers 4a and 4b are provided above and below, sandwiching the material A so as to rotate as the material A 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 valve 6a.
The oil is discharged from a plurality of nozzles 7 toward the roller 4a by its own weight via the pipe line 6b, and is applied to the upper surface of the material A by passing 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 lower surface of material A, which often results in defective molded products. In addition, 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 many 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. In other words, it consists of an upper roller and a lower roller whose length in the axial direction is longer than the width of the long material to be coated.
Both rollers are rotatably provided parallel to each other with their outer peripheral surfaces in contact with each other, and the upper roller and lower roller have their respective outer peripheral surfaces made of a permeable, flexible material such as felt or nonwoven fabric. A liquid tank is provided below the lower roller, and the liquid in the liquid tank is configured to penetrate into 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, upper roller 8 and lower roller 9
are rotatably provided at positions corresponding to the rollers 4a and 4b shown in FIG. 1, sandwiching the material A to be fed, parallel to each other, and with their outer peripheral surfaces in contact with each other. That is, the respective shaft portions 8a and 9a of the upper roller 8 and the lower roller 9 are fitted from above into the shaft grooves 10a of bearing members 10 and 10 fixedly attached to the body of a press machine, etc., and the lower roller 9 is The upper roller 8 is pivotally supported by the bearing member 10, and its shaft portion 8a is supported by the bearing member 10.
0 restricts movement in the front-back direction, and its own weight brings it into pressure contact with the outer circumferential surface of the lower roller 9.

The upper roller 8 and the lower roller 9 have respective main bodies 8b and 9b made of, for example, metal cylindrical bodies, and coating members 8c and 9c made of nonwoven fabric are wound around the circumferential surfaces of the main bodies 8b and 9b. It is attached with adhesive. These application members 8c, 9c
It is preferable to use a material that is permeable and soft, such as felt or nonwoven fabric, and is provided so as to have strong permeability in the axial direction of each of the upper roller 8 and the lower roller 9. A box-shaped liquid tank 11 is located below the lower roller 9.
This liquid tank 11 is fixedly attached to the aircraft body in the same way as the bearing member 10 described above.

One side plate 1 of the liquid tank 11 parallel to the lower roller 9
1a is provided with an intake port 12 at its center and discharge ports 13, 13 on both sides thereof.
A pump 14 is connected to the supply port 12 through a pipe line 15, and the lubricating oil in the tank 16 is supplied from the supply port 12 into the liquid tank 11. The conduit 17 is connected,
The lubricating oil in the liquid tank 11 is discharged into the tank 16 via a filter 18. The discharge port 13 is provided at a position several millimeters higher than the lowest end of the outer peripheral surface of the lower roller 9 in the height direction, and the lubricating oil B supplied into the liquid tank 11 from the supply port 12 is , the lower roller 9 is maintained at a liquid level that is submerged by several millimeters. Lubricating oil B includes white kerosene, punch oil,
Alternatively, a mixture of these in an appropriate ratio can be used, and even one 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, a regulator for adjusting the discharge amount of the pump 14, an indicator light for indicating the operation of the pump 14, a power switch, etc. are provided.

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

The long strip-shaped material A is inserted between the upper roller 8 and the lower roller 9, and the application member 8c,
Since 9c is soft, the part that comes into contact with this material A is elastically compressed, and the axial length of both rollers 8 and 9 is longer than the width of material A, so material A is inserted through it. Application member 8 other than the part
c and 9c are in contact with each other.

Now, due to the operation of the pump 14, the tank 16
The lubricating oil inside 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 port 13, it flows from the discharge ports 13 on both sides to the tank via the pipe line 17 and the filter 18. As a result, the liquid tank 11 is filled with clean lubricating oil B.
is in constant flow and maintained at a constant liquid level. As a result, part of the application member 9c of the lower roller 9 in the circumferential direction is always immersed in the lubricating oil B. When the material A is fed in one direction, for example, in the direction of the arrow shown in FIG. 2, the upper roller 8 and lower roller 9 rotate in the direction of the arrow in the figure, so that the application member 9c of the lower roller 9 is sequentially coated with lubricating oil. B, the lubricating oil permeates or adheres to the entire circumferential surface. The lubricating oil that has permeated or adhered to the applicator 9c is applied when the applicator 9c contacts the lower surface of the material A, and the lubricating oil is applied by the contact of the upper roller 8 with both ends of the applicator 8c. It also adheres to and permeates the 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 of the coating member 8c, and the material A that comes in contact with the coating member 8c
The top surface will be anointed with 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 course of the process. 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. In addition, according to the above-mentioned applicator, even a low-viscosity lubricant can be reliably applied, so for example, if white kerosene as mentioned above is used as a lubricant, it will stick to the molded product after press forming. The lubricating oil used dries naturally,
It is possible to omit the trouble of cleaning each molded product, and there is less risk of contaminating the press machine and its surrounding environment.

In the above embodiment, the application members 8c, 9c
Although felt or nonwoven fabric is used as the material, other materials may be used, and the upper roller 8 and the lower roller 9 may be entirely constituted by an application member. In this case, in order to adjust the contact pressure between the upper roller 8, the lower roller 9, and the material A, a suitable weight, a spring, or the like can be used. 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 ports 13 is arbitrary, and they can be provided at other suitable locations.Also, the discharge ports 13 can be omitted and only the consumed amount of lubricating oil can be supplied into the liquid tank 11. You can also do this. Alternatively, an appropriate 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 bearing member 10, but it may be supported by providing shaft holes in the side plates at both ends of the liquid tank 11. Also, liquid tank 1
1 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.

Moreover, although it is possible to apply liquid to both sides of a long material as described above,
The structure is simple because only a liquid tank needs to be provided below the lower roll of the upper and lower rolls that face each other while holding a long material in between, and work efficiency is improved because liquid only needs to be supplied to a single liquid tank. In addition to improving performance, maintenance and management are easy.

[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, Fig. 2 is a sectional side view, and Fig. 3 shows a liquid circuit. FIG. 8...Upper roller, 9...Lower roller, 8c, 9c
...Applying member, 11...Liquid tank, A...Material, B...
...Lubricating oil (liquid).

Claims (1)

[Claims] 1. Consists of an upper roller and a lower roller whose axial length is longer than the width of the long material to be coated, and both rollers are rotatable parallel to each other and with their outer peripheral surfaces in contact with each other. The upper roller and the lower roller have their respective outer peripheral surfaces made of felt,
It is made of a flexible application member having permeability such as non-woven fabric, and is configured such that a liquid tank is provided below the lower roller, and the liquid in the liquid tank permeates into the application member of the lower roller. Coating equipment for long materials. 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. Claim 1 or 2, wherein the lower roller is immersed in the liquid in the liquid tank.
Apparatus for coating long materials as described in Section 2.