JPH0755397B2 - Oiling method and oiling equipment for materials in transfer press - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer press, and more particularly to a method and apparatus for applying oil to a material in the absence of a coil line.

[0002]

2. Description of the Related Art When performing deep drawing or drawing of SUS material with a transfer press having no coil line, the material 1 is coated with oil, so the press is stopped at each stroke, and the brush 2 is used for coating. I was working on oil (Fig. 6
(A)).

Further, as shown in FIG. 6 (b), a method has also been used in which oil is sprayed from the nozzle 3 onto the material 1 and then sprayed to apply the oil.

[0004]

Among the above-mentioned conventional techniques, the former has a problem that the press is stopped for each stroke and the oil is manually applied, which requires manpower and productivity is low.

In addition, the latter not only cannot reliably apply oil to both sides of the material, but also because the mist scatters and mixes in the air.
There was a problem that the working environment was poor in hygiene. Therefore, an object of the present invention is to provide a method and a device for applying oil to a material in a transfer press, which can solve these problems.

[0006]

In order to achieve the above object, an oil coating method in a transfer press according to the present invention is designed so that oil flows down to the upper surface of a first flat plate (10) and the upper surface of a material (1). Then, the first flat plate (1
0) and the second flat plate (18) placed on the upper side, the raw material (1) is sandwiched and both flat plates (10) and (18) are pressed against both sides of the raw material (1), and the oil is added to the raw material ( It is characterized in that it is designed so as to spread over both sides of 1).

Further, the oil coating device in the transfer press of the present invention is provided with the first and second plane plates (10) and (18) for sandwiching the material (1) from above and below, and when transferring the material by the transfer mechanism, Oil was made to flow down on the upper surface of the material (1) and the upper surface of the lower flat plate (10), and both flat plates (10) and (18) and the raw material (1) were brought into close contact with each other at the bottom dead center of the press. It is characterized by

[0008]

The oil that has flowed down to the upper surface of the lower first flat plate is sandwiched between the first flat plate and the material and spread over the entire lower surface of the material to be applied with oil.

The oil dripped on the upper surface of the material is pushed by the second flat plate placed on the upper side and spreads and is applied to the entire upper surface of the material.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an oil coating device provided in the first step of a transfer press, which is composed of a portion mounted on a bolster 4 of the press and a portion mounted on a slider 5.

6 is a base fixed to the bolster 4, 7 and 7
Is a guide whose base (lower part) is fixed to the base 6, 8 is a lifter which can be moved up and down by being guided by the guides 7, 7, 9 is a spring for urging the lifter 8 upward, and 10 is a first flat plate. It is horizontally fixed to the upper surface of the lifter 8.

A cover 11 is attached to the base 6 to enclose the lateral outer periphery and the lower surface of the portion consisting of the guide 7 to the flat plate 10, and prevents oil from scattering. Reference numeral 12 is an oil recovery pipe.

Reference numeral 13 is a base fixed to the slider 5, and 14 is a base.
Is a guide whose base (upper part) is fixed to the base 13,
5 is a leading presser that can be moved up and down by being guided by the guide 14.
6 is a compression spring for urging the presser foot 15 downward, 1
Reference numeral 7 denotes a rod which is guided by a guide 14 and is vertically movable, and a second flat plate 18 is fixed to the lower end of the rod 17. The lower end of the preceding presser foot 15 penetrates the second flat plate 18.

A compression spring 19 is interposed between the second flat plate 18 and the guide 14 so as to urge the second flat plate 18 downward.
3 is attached to the tip of the guide 14 and the second
Through the hole of the flat plate 18 and opens downward.

The oil dropping pipe 20 has an upper end
Oil from a pump not shown is supplied via a valve not shown. It should be noted that this valve opens and closes as will be described later in conjunction with the vertical movement of the slider 5, and is attached to the slider 5.

Reference numeral 21 is a cover for preventing oil from scattering, and is attached to the base 13 so as to surround the outer periphery of the part consisting of the guide 14 to the oil dripping pipe 20. In the state shown in FIG. 1, after the oil is dropped on the upper surface of the first flat plate 10 and the upper surface of the material 1, the material 1 is sandwiched between the first and second flat plates 10 and 18 to remove the oil. The state at the time of spreading on both the upper and lower sides of the raw material 1 is shown.

FIG. 2 shows a state in which oil is dropped on the upper surface of the first flat plate 10, and FIG. 3 shows a state in which oil is dropped on the upper surface of the raw material 1. It should be noted that in FIGS. 1 and 2, hatching to be written in the cross section is omitted in order to avoid making the drawings difficult to see.

In the state of the top dead center of the press shown in FIG. 1, oil is dropped from the oil dropping pipe 20 onto the upper surface of the first flat plate 10. Next, the raw material 1 is conveyed rightward, and the oil from the oil dropping pipe 20 is dropped onto the upper surface of the raw material 1 while being moved to the upper side of the first flat plate 10. At this time, the slider 5 is descending.

When the slider 5 is lowered to some extent, the valve (not shown) is closed to stop the oil dripping, and thereafter,
The preceding presser foot 15 presses the raw material 1 against the upper surface of the first flat plate 10, and the second flat plate 18 closely contacts the upper surface of the raw material 1 and presses it downward. As shown in FIG. Becomes By doing so, as described above, the first flat plate 1
The oil dripped on the upper surface of 0 and the upper surface of the material 1 spreads and is applied to the entire lower surface and upper surface of the material 1.

After that, when the slider 5 moves upward to reach the top dead center, the valve is opened. Figure 4
2 shows how the oil 21 dropped on the material 1 is pushed and spread by the flat plate. FIG. 4 (a) shows a state before the oil 21 spreads, FIG. 4 (b) shows a state in the middle of spreading, and reference numeral 21a shows an expanding oil film.

FIG. 5 shows a part of a series of steps of a transfer press in which the oil coating apparatus of FIG. 1 is incorporated. From the left to the right, a material stacking magazine, an unprocessed idle stage, and oil coating. The oil coating device and the squeezing process are lined up. The oiling process is the first process of transfer, and the drawing process is the second process of transfer. The oiling device described in FIGS. Oil is applied.

[0022]

EFFECTS OF THE INVENTION According to the present invention, in a transfer press without a coil line, uniform oil can be automatically and uniformly applied to the entire upper and lower surfaces of the material, and the mist of oil does not fly into the air. There is no fear that the working environment will deteriorate. Therefore, in the press processing that requires oiling, the transfer press can be automatically operated without the coil line, which contributes to the improvement of work efficiency.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of an embodiment of the present invention.

2 is a diagram of a different aspect of the embodiment of FIG.

FIG. 3 is a diagram of yet another aspect of the embodiment of FIG.

FIG. 4 is a plan view showing a state where the oil dripped on the upper surface of the raw material 1 spreads.

FIG. 5 is a front view illustrating main steps of a transfer press.

FIG. 6 is a perspective view illustrating a conventional oiling method.

[Explanation of symbols]

 1 Material 10,18 Flat plate

Claims (2)

[Claims] 1. A first flat plate (10), which is placed on the lower side after allowing oil to flow down to the upper surface of the first flat plate (10) and the upper surface of the material (1).
Flat plate (10) and second flat plate (18) placed on the upper side
The material (1) is sandwiched between the two flat plates (10) (1
A method for applying oil to a material in a transfer press, characterized in that 8) is pressed against both surfaces of the material (1) so that the oil is spread over both surfaces of the material (1). 2. A first and a second flat plate (10) (18) for sandwiching the material (1) from above and below are provided, and when the material is conveyed by a transfer mechanism, the upper and lower flat surfaces of the material (1) are provided. A transfer press oiling device, characterized in that oil is made to flow down on the upper surface of the face plate (10), and the two flat plates (10) (18) and the material (1) are brought into close contact with each other in the state of the bottom dead center of the press. .