JP3523448B2 - Chip dispenser - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip dispensing device for scraping chips out of an oil sump and automatically dispensing them.

[0002]

2. Description of the Related Art Conventionally, for example, cutting oil separated by a centrifugal separator for separating cutting oil and cutting chips is once received in a separation box made of aluminum or the like, and the separation box finely separates the cutting oil from the cutting oil. It was returned to the cutting oil tank after the cutting chips were removed. The fine chips collected in the separation box are carried to a chip carrier by an operator.

[0003]

However, as the productivity of products by cutting is improved, the amount of fine chips accumulated in the separation box also increases, and the burden on the worker who discards the chips is increased accordingly. There was a problem that it would increase.

The object of the present invention is to scrape out the cutting chips from the oil sump to separate them from the oil, and then to discharge the cutting chips from a predetermined dispensing position so that the cutting chips dispensing operation can be automated. It is to provide a chip dispensing device.

[0005]

A chip discharging device according to the present invention is a chip discharging device for discharging chips from an oil sump and discharging them, and capable of scraping out the chips in the oil sump. An arm, a gutter extending obliquely upward from the upper position of the oil sump, and a chip discharge port formed in a part closer to the upper part of the gutter and dropping and discharging chips located in that part, Moving means for reciprocating the arm along the inclination direction of the gutter, and the arm when the arm moves from the position of the oil sump toward the position of the chip discharge port. Guide means for slidingly contacting the upper surface of the gutter and separating the arm above the gutter when the arm moves from the position of the chip discharge port toward the position of the oil sump , Guy
The means is such that the arm moves from the position of the chip discharge port.
When moving toward the position of the oil sump, the
Lift a certain part of the arm and lift the arm
Then, move the arm with the specified part of the arm raised.
Move the arm to a position above the oil sump
When this is done, the arm is dropped into the oil sump .

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of equipment equipped with a payout device of this embodiment, and FIG. 2 is a side view thereof. In these figures, 1 is a centrifuge for separating oil O and chips W such as aluminum, and the separated oil O is introduced into an oil sump 3 through a trough 2. Fine chips W1 are mixed in the oil O introduced into the oil sump 3 through the trough 2, and the oil O is filtered by the net-shaped wall portion 3A of the oil sump 3 and then cut into the cutting oil tank 4 Returned to.
The wall portion 3A may not have such a filtering function,
Further, the wall may not originally have such a filtering function, and in such a case, the oil O overflowing from the oil sump 3 is returned to the cutting oil tank 4 over the wall portion 3A. Then, the oil O and the chips W1 that settle in the oil sump 3 are separated.

The chip dispensing device 10 of this embodiment scrapes out the chips W1 settling in the oil sump 3 and automatically dispenses them into the chip carriage 5 from a predetermined dispensing position P1. Has become.

The main body 11 of the apparatus 10 is installed above the oil sump 3 and the payout position P1, and the upper surface of the gutter 20 provided therein has a payout position P1 from the oil sump 3.
It is an inclined surface 20A that is inclined obliquely upward toward. At the upper end of the gutter 20, a dispensing port 21 located above the dispensing position P1 is formed, and the chips W1 dispensed from the dispensing port 21 pass through inside the guides 6 and 7 and a chip carrier. Drop into 5.

Further, in the main body 11, an arm 30 capable of scraping out the chips W1 in the oil sump 3 and the arm 30 are provided.
A moving mechanism (moving means) 40 that reciprocates in the directions of the arrows A1 and A2 along the inclined surface 20A, and a guide mechanism (guide means) 50 that guides the arm 30 along a predetermined movement locus are provided. .

The moving mechanism 40 of this embodiment has a hollow guide shaft 41 extending along the inclined surface 20A above the gutter 20.
And a moving body 42 slidably guided by the guide shaft 41. Inside the guide shaft 41, a magnet (not shown) that reciprocates in the directions of arrows A1 and A2 by the air pressure introduced therein is provided.
Moves along with the magnet in the directions of arrows A1 and A2 while being attracted and held by the magnetic force of the magnet. Therefore, a mechanism for moving the moving body 22 is built in the guide shaft 21, which is advantageous in a poor environment. The moving mechanism 40 having such a configuration is also generally called a rodless cylinder. The arm 30 has a structure in which a plurality of members are combined, and an upper end of the arm 30 is swingably supported by a lower part of the moving body 42 about a horizontal axis O1. Arm 30
An elastic scraping portion 31 formed in a downward key shape is attached to the tip of the, and a guide roller 32 is rotatably supported at the intermediate portion of the arm 30. The guide mechanism 50 includes a guide member 51 that guides the guide roller 32.
In FIG. 1, a first guide portion 51A that extends downward along the arrow A1 and A2 directions and a second guide portion 51A that extends upward from the upper end of the first guide portion 51A toward the inclined surface 20A.
A guide portion 51B is formed.

Next, the operation will be described.

The arm 30 in which the scraping portion 31 is located in the oil sump 3 as shown by the solid line in FIG. 2 moves in the direction of the arrow A1 together with the moving body 42, and then moves to the position above the chain double-dashed line in FIG. At that time, first, the arm 30 scrapes out the chips W1 precipitated in the oil sump 3 by the scraping part 31 at the tip thereof, and places the chips W1 on the inclined surface 20A. Then, the arm 30 slides in the direction of the arrow A1 while being pressed against the inclined surface 20A by its own weight, and gradually raises the cutting powder W1 along the inclined surface 20A. Meanwhile, the oil O scraped out together with the cutting chips W1 passes through between the elastic body 31 and the gutter 20, and the oil pool 3 is formed along the inclined surface 20A.
Returned inside. Thus, the chips W1 on the inclined surface 20A
Will be moved in the direction of arrow A1 while being drained. Then, by moving the arm 30 to a position above the two-dot chain line in FIG. 2, the oil-cut chips W1 are discharged from the discharge port 21. The delivered chips W1
Are dropped and stored in the chip carriage 5. In order to sufficiently remove the cutting powder W1, the arm 30 may be temporarily stopped on the inclined surface 20A, or the moving speed of the arm 30 may be slowed.

In this way, when the arm 30 moves in the direction of arrow A1, the guide roller 32 in the arm 30 passes below the guide member 51. In the guide member 51, only the upper end portion 51B-1 of the second guide portion 51B is located within the movement locus of the guide roller 32, and the other portions are separated above the movement locus of the guide roller 32. Therefore, the guide roller 32 is temporarily interfered by the upper end portion 51B-1 when passing below the upper end portion 51B-1. The interference is mitigated by elastic deformation of the scraping portion 31 of the arm 30. Further, in order to mitigate the temporary interference, the upper end portion 51B-1 may be formed of an elastic member, or the first guide member 51B may be rotatable upward about the axis O2. The arm 30 utilizes the impact when the guide roller 32 hits the upper end portion 51B-1 and moves downward, and the impact when the guide roller 32 disengages from the upper end portion 51B-1 and returns to the upper direction, and thus the cutting powder W1. Can be reliably dropped into the payout opening 21.

The arm 30 that has dispensed the chips W1 in this manner then moves to the position below the solid line in the figure as the moving body 42 moves in the direction of arrow A2. that time,
First, the guide roller 32 of the arm 30 rides on the upper end portion 51B-1 of the second guide portion 51B, and the arm 30 is swung so as to be gradually lifted. Then, while the guide roller 32 moves while being guided by the upper portions of the second guide portion 51B and the first guide portion 51A, the arm 30 moves in the arrow A2 direction while being lifted above the inclined surface 20A. After that, the guide roller 3
When 2 is disengaged from the lower end of the first guide portion 51A, the arm 30 swings downward and the scraping portion 31
Is dropped into the oil sump 3 as indicated by the solid line in FIG. At that time, the scraping portion 31 is strongly dropped into the oil sump 3 from above, and the chips W1 in the oil sump 3 are correspondingly dropped.
Can be efficiently scraped.

FIG. 3 is a side view of an essential part for explaining such movement of the arm 30. In the figure, the moving body 4
4 simultaneously shows four states of the arm 30 when 2 is moving to each of the four positions PA, PB, PC and PD. PA is the moving position of the moving body 42 when the arm 30 dispenses the chips W1 from the chip dispensing port 21, and PB is the guide roller 32 where the second guide portion 5 is provided.
The moving position of the moving body 42 when riding on the upper end portion 51B-1 of 1B, PC is the moving body 4 when the guide roller 32 is riding on the first guide portion 51A.
The second moving position, PD, is the moving position of the moving body 42 when the guide roller 32 is displaced from the lower end of the first guide portion 51A. L in the figure is a movement locus of the guide roller 32. As is clear from this figure, the arm 30
When moving in the direction of arrow A1, the inclined surface 20A is pressed and slides by its own weight, while when moving in the direction of arrow A2, the inclined surface 2A is moved by the guide member 50.
Lifted above 0A. In FIG. 3, for convenience of description, the elastic body 31 of the arm 30 is shown as moving on the extension line L1 of the inclined surface 20A in the arrow A1 direction.

In FIG. 1, S1 is an arrow A of the moving body 42.
A proximity switch for detecting the movement limit position in one direction, and S2 is a proximity switch for detecting the movement limit position of the moving body 42 in the direction of arrow A2.

[0018]

As described above, according to the chip discharging device of the present invention, the arm scrapes out the chips in the oil sump, removes the chips while moving the chips obliquely upward, and then performs the predetermined discharging. By dispensing from the position, it is possible to automate the chip dispensing work. Moreover,
After the swarf is dispensed, the arm can be moved diagonally downward and lifted back into the oil sump to eliminate unnecessary sliding resistance of the arm and move it efficiently.

[Brief description of drawings]

FIG. 1 is a plan view for explaining an embodiment of the present invention.

FIG. 2 is a side view of a partial cutout taken along the line II of FIG.

FIG. 3 is a side view of a main part for explaining the movement of the arm shown in FIG.

[Explanation of symbols]

10 Chip discharging device 20 gutter 21 Payout 30 arms 31 scraping part 32 Guide roller 40 moving mechanism (moving means) 41 Guide shaft 42 Mobile 50 Guide mechanism (guide means) 51 Guide member 51A 1st guide part 51B 2nd guide part W, W1 chips O cutting oil

Claims (2)

(57) [Claims] 1. A chip discharging device for discharging and discharging chips from an oil sump, wherein an arm capable of scraping out the chips in the oil sump and diagonally upward from a position above the oil sump. An extending gutter, a chip discharge port formed in a part near the upper part of the gutter and dropping and discharging chips located at the part, and the arm reciprocating along the inclination direction of the gutter. And a moving means for moving the arm from the position of the oil sump toward the position of the chip discharge port, causing the arm to slide on the upper surface of the gutter, and the arm of the chip discharge port. position and a guide means for spacing said arm above the trough as it moves toward the position of reservoir the oil from said guide means, said arm of said chip payout opening
When moving from the position toward the position of the oil sump
The predetermined part of the arm, and the arm
Lift the arm, and then lift the specified part of the arm.
With the arm moved, the arm is in the upper direction of the oil sump.
Drop the arm into the oil sump when
Chip dispenser, characterized in that to the. 2. The guide means is located above the oil sump.
The first extending upward from the position along the inclination direction of the gutter
From the upper end of the guide part and the first guide part to the gutter
Member provided with a second guide portion that inclines
And a first guide portion and a second guide included in the arm.
A guide roller that is guided and moved to the upper part of the section, and the arm of the guide roller is the chip discharge port.
When moving from the position of to the position of the oil sump
First, after riding on the upper part of the first guide part,
2 Move to the upper part of the guide part,
Above the second guide portion when moved to the upper position
The chip dispensing device according to claim 1, wherein the chip dispensing device is detached from the part .