JPH0742507Y2 - Debris removal device in cutting oil cleaning device by magnetic separation - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION This invention relates to cutting chips deoiling device in cutting oil cleaning device cutting chips from steel by a magnetic separation so as to remove separated from cutting oil by the magnet.

[0002]

2. Description of the Related Art Conventionally, as a cutting oil cleaning device for separating the cutting waste 20 from the cutting oil 21 containing the steel cutting waste 20, as shown in FIG. 4, a drum 23 having a large number of magnets 22 attached to its inner peripheral edge is used. 2 of the separation chamber, which is provided with a shaft 24 so as to constantly rotate
The cutting oil 21 containing the cutting waste 20 that has flowed into the cutting oil sump 26 between the drum 5 and the drum 23 flows out as shown by the arrow, and the cutting oil 21 is guided from the discharge port 27 to a storage tank (not shown), rubber roller 28 and the discharge exit 27 across the drum 23 to be pressed against the drum 23 to the opposite top, discharge
The exit port 27 side of the upper drum 23 stripped cutting debris 20 that has been attracted to the magnet 22 is brought into contact with the tip of the peeling plate 29 the lower end is HasuMuko downwards on the release plate 29 shavings box 30 It is known to be introduced into.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned conventional cutting oil cleaning apparatus, the cutting waste 20 of steel material is adsorbed by the magnet 22 from the cutting oil 21 and the drum 23 rotates as the drum 23 rotates.
The cutting oil portion 21 of the cutting waste 20 pressed by the rubber roller 28 when pulled up upward is squeezed, but the portion where the magnet 22 is not attached has a small thickness of the cutting waste 20 and cannot be squeezed well, and thus the peeling plate. The cutting scraps 20 peeled off on 29 contain a large amount of cutting oil 21, and there is a drawback that a device for separating the cutting oil 21 is additionally required to discard the cutting scraps 20.

The present invention is based on magnetic separation which eliminates the above-mentioned drawbacks and requires no additional device to separate the cutting chips from the cutting oil by passing it through the cutting oil cleaning device once. it is an object of the present invention to provide a cutting chips deoiling instrumentation <br/> location in cutting oil cleaning device.

[0005]

In order to solve the above-mentioned problems, the present invention allows cutting oil to flow down from a storage tank to the periphery of a drum which has a magnet on its inner peripheral surface and which does not always rotate.
A cylinder or pipe in a cutting oil cleaning device by magnetic separation in which the rotation of the drum drive motor is controlled by the limit switch of the float that moves up and down depending on the amount of cutting oil in the storage tank to scrape cutting debris onto the oil removing plate. A vacuum box is installed below the oil removing plate that is arranged in parallel in the movement direction so that water can be supplied with the electromagnetic valve that operates for a certain time so that the vacuum box is evacuated in conjunction with the limit switch. A means comprising a cutting oil removing device provided with an electromagnetic valve which is operated for a certain time so as to let air pass through is provided.

[0006]

The operation of the present invention will be described with reference to the drawings of the embodiments. In FIG. 1, a steel tank cutting waste 7 is stored in a storage tank 9.
The cutting oil 8 containing is injected, the cutting oil 8 flows into the gap between the separation chamber 4 and the drum 3, and the cutting waste 7 is attracted to the peripheral edge of the drum 3 by the magnet 2 of the drum 3. When the amount of cutting chips 7 adsorbed on the drum 3 increases as the cutting oil 8 passes and the passing amount of the cutting oil 8 decreases, the cutting oil 8 in the storage tank 9
3, the float 11 also rises, and the limit switch 10 is turned on in FIG.
The circuit is closed and the drive motor M is rotated to rotate the drum 3.

In FIG. 1, when the drum 3 rotates, the cutting waste 7 adsorbed on the drum 3 is peeled off by the peeling blade 12 and pushed out onto the oil removing plate 13, and when the drum 3 slightly rotates, the drum 3 is rotated until then. The portion with a large amount of cutting waste 7 adsorbed on 3 moves upward, and instead of this, the cutting oil 8 passes through a portion with a small amount of cutting waste 7, so the amount of passing cutting oil 8 increases and the storage tank The level of the cutting oil 8 in 9 descends and floats 11.
3, the limit switch 10 is turned off to open the circuit of the drive motor M in FIG.
At the same time as the stop, the circuit of the timer T1 for controlling the switch S1 of the electromagnetic valve V1 is closed, the timer T1 is operated and the switch S1 is closed, and the electromagnetic valve V1 is opened, and air is sucked from the suction port 16 in FIG. The vacuum box 15 is brought into a vacuum state so that the cutting oil 8 is sucked from the cutting waste 7 on the oil removing plate 13 through the gap between the pipes 14 (see FIG. 2) to remove the liquid content from the cutting waste 7. Become.

In FIG. 3, the timer T1 opens the switch S1 to open the circuit of the electromagnetic valve V1 and closes the electromagnetic valve V1 to stop the suction of air after a lapse of a fixed time (usually about 10 seconds), and at the same time, to stop the electromagnetic valve V2. The circuit of the timer T2 for controlling the switch S2 is closed, and the timer T2 is operated for a fixed time (usually about 2 seconds) to open the electromagnetic valve V2. In FIG.
Deoiling plate by returning to atmospheric pressure by flowing air from the 1
The cutting waste 7 adsorbed on the upper part 3 is blown up from below to release the adsorbed state.

The cutting chips 7 in this state are float 11 of the next time.
When the drum 3 is rotated due to the rise of the cutting scraps, it is pushed out by the cutting scraps 7 stripped off by the peeling blade 12 and stored in the cutting scraps box 19 and collected. Only the cutting waste 7 is stored in the cutting waste storage box 19, and the cutting oil 8 does not accumulate under the cutting waste 7.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, a drum 3 having a large number of horseshoe-shaped magnets 2 mounted on the inner peripheral surface of a cylindrical body 1 is pivotally supported by a shaft 6 on a side wall 5 of the separation chamber 4 with a slight distance from the separation chamber 4. The drive motor M (see FIG. 3) is attached to the shaft 6 of the drum 3 so that the drum 3 is always stopped and intermittently rotatable for a short time. A storage tank 9 for cutting oil 8 containing steel cutting chips 7 is provided in front of the separation chamber 4 (on the left side in FIG. 1), and a limit switch 10 is provided above the cutting oil 8 in the storage tank 9. The float 11 provided on the floor is floated.
The limit switch 10 may use a sensor that senses the vertical movement position of the float 11 and operates the switch.

An oil removing plate 13 having a peeling blade 12 at its tip is provided near the top of the drum 3 above the separation chamber 4.
Things as the deoiling plate 13 and the cylindrical or pipe 14 is parallel to the suction oil moveable direction as shown in FIG. 2 is used, but may not necessarily be a mesh body is not limited thereto. Prolapse
The lower surface of the oil plate 13 in the vacuum box 15 is mounted vacuum box 15 is provided a suction port 16 and air inlet 17 communicating with a vacuum pump or ejector, it is below the vacuum box 15 cutting oil which is deoiled 8 storage tanks 18 are provided, and a cutting waste storage box 19 is installed below the rear end portion of the oil removing plate 13.

[0012]

According to the first aspect of the present invention, it is difficult to collect or dispose of the cutting chips because the conventional cutting oil cleaning device using a magnet cannot remove only the cutting chips and contains a large amount of cutting oil. invention may be only a little cutting wastes are sucked by vacuum deoiling to the cutting oil adhering to spite swarf a cutting oil cleaning device by the magnet,
Moreover that the cutting chips in spite perform vacuum deoiling process is adsorbed on the deoiling <br/> plate without recovering move sequentially deoiling <br/> plate above with the rotation of the drum The device is simple and the effect is remarkable.

[0013] the invention of claim 2 is the case of deoiling a large amount inclusive swarf cutting oil on a deoiling plate and shavings and deoiling plate is a mesh body is drawn into the pores of the mesh body Although it is difficult to move to, suction oil capable of moving the cutting debris is is possible to smoothly and easily without blocking when deoiled because it is parallel to the moving direction moving deoiling plate with cylindrical or pipe It is possible to store cutting chips easily.

[Brief description of drawings]

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

FIG. 2 is a perspective view of the oil removing plate.

FIG. 3 is a circuit diagram of the same.

FIG. 4 is a vertical sectional front view showing a conventional example.

[Explanation of symbols]

2 Magnet 3 Drum 7 Cutting waste 8 Cutting oil 9 Storage tank 10 Limit switch 11 Float 13 Oil removing plate 15 Vacuum box M Drive motor V1 Electromagnetic valve V2 Electromagnetic valve

Claims (2)

[Scope of utility model registration request] 1. A cutting oil (8) is made to flow down from a storage tank (9) to the periphery of a drum (3) having a magnet (2) mounted on its inner peripheral surface and which does not rotate at all times, to perform cutting in the storage tank (9). The rotation of the drive motor (M) of the drum (3) is controlled by the limit switch (10) of the float (11) that moves up and down according to the amount of oil (8), and the cutting debris (7) is stripped on the oil removing plate (13). In the cutting oil cleaning device by the magnetic separation, the vacuum box (15) is provided below the oil removing plate (13).
Is provided with an electromagnetic valve (V1) which operates in conjunction with the limit switch (10) for a certain period of time so as to create a vacuum in the vacuum box (15), and after a certain period of time, the vacuum box (1
5) A cutting waste oil removing device provided with an electromagnetic valve (V2) which is operated for a certain time so as to let air pass through. 2. The deoiling plate (13) is a column or a pipe (1).
4) cutting chips deoiling device according to claim 1, wherein constructed by suction oil capable to parallel movement direction.