JPH10296579A - Chip discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatize chip discharging work by discharging chips from a specified discharging position after separating the chips from oil by scraping off them from an oil reservoir. SOLUTION: This chip discharge device scrapes off chips W1 in an oil reservoir 3 by a scraping part 31 of an arm 30, removes oil while moving the chips W1 with the arm 30 diagonally upward along an inlined surface 20A of a gutter 20, discharges the chips W1 from which oil is removed from a specified discharge port 21 and after finishing discharge of the chips W1, returns the arm 30 to the inside of the oil reservoir 3 by moving it diagonally downward while lifting it up by a guide member 51.

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 from an oil reservoir and automatically dispensing the chips.

[0002]

2. Description of the Related Art Conventionally, for example, cutting oil separated by a centrifugal separator for separating cutting oil and chips is once received in a separation box made of aluminum or the like, and the separation box separates the cutting oil into fine particles. After the swarf was removed, it was returned to the cutting oil tank. The fine chips collected in the separation box are transported to a chip carrier by an operator.

[0003]

However, as the productivity of products by cutting increases, the amount of fine chips accumulated in the separation box also increases, and the burden on the operator to discard the chips accordingly. Also increased.

[0004] An object of the present invention is to scrape chips from an oil sump to separate them from oil, and then to discharge the chips from a predetermined discharge position to automate the operation of discharging chips. An object of the present invention is to provide a chip discharging device.

[0005]

A swarf dispensing device according to the present invention is a swarf dispensing device for removing swarf from an oil sump and dispensing the swarf, wherein the swarf can be scraped out from the oil sump. An arm, a gutter extending obliquely upward from an upper position of the oil sump, and a chip discharging port formed at a position closer to the upper side of the gutter to drop and discharge chips located at the position, Moving means for reciprocating the arm along the inclined direction of the inclined surface between the inside of the oil reservoir and the position of the chip discharge port, and the arm dispensing the chip from the oil reservoir. When moving to the position of the mouth, the arm is slid on the upper surface of the gutter,
And a guide means for separating the arm above the gutter when the arm moves from the position of the chip discharge port into the oil sump.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of equipment provided with the dispensing device of the present embodiment, and FIG. 2 is a side view thereof. In these figures, reference numeral 1 denotes a centrifugal separator for separating oil O and chips W such as aluminum, and the separated oil O is guided through a gutter 2 into an oil reservoir 3. Fine chips W1 are mixed in the oil O guided into the oil sump 3 through the gutter 2, and the oil O is filtered by the net-like wall 3A of the oil sump 3 and then cut into the cutting oil tank 4. Is returned to.
The wall portion 3A may not have such a filtering function,
Further, a wall having no such filtering function may be used. In such a case, the oil O overflowing from the oil reservoir 3 is returned to the cutting oil tank 4 over the wall 3A. Thus, the oil O and the chips W1 settling in the oil reservoir 3 are separated.

The chip dispensing apparatus 10 of the present embodiment scrapes out the chips W1 settling in the oil reservoir 3 and automatically dispenses the chips W into the chip carrier 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 is provided with the oil sump 3 and the payout position P1.
An inclined surface 20A that is inclined obliquely upward toward. A payout port 21 located above the payout position P1 is formed at the upper end of the gutter 20, and the chips W1 paid out from the payout port 21 pass through the guides 6 and 7 and the chip carrier. Fall into 5.

In the main body 11, an arm 30 capable of scraping out the swarf W1 in the oil sump 3 is provided.
(Moving means) 40 for reciprocating the arm 30 in the directions of the arrows A1 and A2 along the inclined surface 20A, and a guiding mechanism (guide means) 50 for guiding the arm 30 along a predetermined movement locus. .

The moving mechanism 40 according to the present embodiment includes 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. The guide shaft 41 is provided with a magnet (not shown) that reciprocates in the directions of arrows A1 and A2 by air pressure introduced therein.
Move in the directions of arrows A1 and A2 together with the magnet 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 generally called a rodless cylinder. The arm 30 has a coupling structure of a plurality of members, and the upper end thereof is pivotally supported by the lower part of the moving body 42 about a horizontal axis O1. Arm 30
An elastic scraping portion 31 formed in a downwardly key-like shape is attached to a tip of the arm 30. A guide roller 32 is rotatably supported at an intermediate portion of the arm 30. The guide mechanism 50 includes a guide member 51 for guiding the guide roller 32.
1 includes a lower first guide portion 51A extending along the directions of arrows A1 and A2, and an upper second guide portion inclined 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 moves to a position above the two-dot chain line in FIG. At that time, first, the arm 30 scrapes out the chips W1 settled in the oil reservoir 3 by the scraping portion 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 chip W1 along the inclined surface 20A. In the meantime, the oil O scraped out together with the swarf W1 passes between the elastic body 31 and the gutter 20, and the oil pool 3 along the inclined surface 20A.
Will be returned within. Thus, the chips W1 on the inclined surface 20A
Is moved in the direction of arrow A1 while being drained. Then, as the arm 30 moves to a position above the two-dot chain line in FIG. 2, the oil-cut chips W <b> 1 are dispensed from the dispensing port 21. The dispensed chips W1
Is dropped and stored in the chip carrier 5. In order to sufficiently remove the oil from the chips W1, the arm 30 may be temporarily stopped on the inclined surface 20A, or the moving speed of the arm 30 may be reduced.

When the arm 30 moves in the direction of the arrow A1 as described above, the guide roller 32 of the arm 30 passes below the guide member 51. In the guide member 51, only the upper end 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, when the guide roller 32 passes below the upper end 51B-1, it is temporarily interfered by the upper end 51B-1. The interference is mitigated by elastically deforming the scraping portion 31 of the arm 30. Further, in order to reduce the temporary interference, the upper end portion 51B-1 may be formed by an elastic member, or the first guide member 51B may be turned upward around the axis O2. The arm 30 makes use of the impact when the guide roller 32 comes down against the upper end 51B-1 and the impact when the guide roller 32 separates from the upper end 51B-1 and returns upward, using the chip W1. Can be reliably dropped into the payout opening 21.

The arm 30 that has dispensed the chips W1 as described above moves to a position below the solid line in FIG. 1 with the movement of the moving body 42 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 swings so that the arm 30 is gradually lifted. 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 direction of arrow A2 while being lifted above the inclined surface 20A. Then, the guide roller 3
2 is disengaged from the lower end of the first guide portion 51A, the arm 30 swings downward, and the scraping portion 31
Are dropped into the oil sump 3 as shown 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 chip W1 in the oil sump 3 is accordingly reduced.
Can be scraped out efficiently.

FIG. 3 is a side view of a main part for explaining such movement of the arm 30. As shown in FIG. In FIG.
2 simultaneously shows the four states of the arm 30 when 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 pays out the chip W1 from the chip payout port 21, and PB is the guide roller 32
The moving position of the moving body 42 when the mobile body 42 rides on the upper end portion 51B-1 of the first guide part 1B is the moving body 4 when the guide roller 32 is riding on the first guide part 51A.
The movement position 2, PD, is the movement position of the moving body 42 when the guide roller 32 comes off the lower end of the first guide portion 51A. L in the figure is a movement locus of the guide roller 32. As is apparent from FIG.
When moving in the direction of arrow A1, the inclined surface 20A is pressed by its own weight and slides. On the other hand, when moving in the direction of arrow A2, the guide member 50 moves the inclined surface 2A.
Lifted above 0A. In FIG. 3, for convenience of explanation, the elastic body 31 of the arm 30 is shown as moving in the direction of the arrow A1 on the extension line L1 of the inclined surface 20A.

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

[0018]

As described above, in the chip dispensing apparatus of the present invention, the chips are scraped out of the oil reservoir by the arm, the chips are displaced obliquely upward, and the oil is drained. By dispensing from a position, it is possible to automate the dispensing operation of chips. Moreover,
After the dispensing of the chips, the arm is moved obliquely downward while being lifted and returned into the oil reservoir, so that unnecessary sliding resistance of the arm can be eliminated and the arm can be moved efficiently.

[Brief description of the drawings]

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

FIG. 2 is a side view of a partially cut-away view taken along the arrow II of FIG.

FIG. 3 is a side view of a main part for explaining movement of an arm shown in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Chip discharge apparatus 20 Gutter 21 Discharge port 30 Arm 31 Scrape-out part 32 Guide roller 40 Moving mechanism (moving means) 41 Guide shaft 42 Moving body 50 Guide mechanism (guide means) 51 Guide member 51A First guide section 51B Second guide Part W, W1 Chip O Cutting oil

Claims (2)

[Claims] 1. A swarf dispensing device for taking out swarf from an oil sump and discharging the swarf, an arm capable of scraping out the swarf from the oil sump, and an arm obliquely upward from a position above the oil sump. An extending gutter; a chip discharge port formed at a position near the top of the gutter to drop and discharge chips located at the position; and a position in the oil reservoir and the chip discharge port. Moving means for reciprocating the arm along the inclined direction of the inclined surface, and moving the arm to the gutter when the arm moves from the oil reservoir to the position of the chip discharge port. And guide means for sliding the arm above the gutter when the arm moves from the position of the chip discharge port into the oil sump. Dispense chips Apparatus. 2. The moving means includes a guide shaft extending above the gutter along the inclination direction of the gutter, and a movable body reciprocally movable along the guide shaft. The guide means is supported by the movable body so as to be swingable about a horizontal axis, and the guide means moves downward from the oil reservoir to the position of the chip discharging port when the arm moves to the position of the chip discharging port. And a guide member that allows the arm to move to an upper swing position when the arm moves from the position of the chip discharge port into the oil sump. Item 7. A chip discharging device according to Item 1.