JP2006026838A - Chip discharge mechanism of chip carrying type conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a chip discharge mechanism of a chip carrying type conveyer for separating cutting oil containing chips generated in metal cutting machining such as cutting and grinding into chips and cutting oil. <P>SOLUTION: In this chip discharge mechanism of chip carrying type conveyer where a conveyer is reversed on the conveyer tail part side and on the chip carry-out part side to circulate around and run, the chip carry-out part is provided with a space H from the conveyer, and a drip plate is disposed on the right upper side above the horizontal and in the state of projecting from the tip of a driving sprocket for a length L. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a chip discharging mechanism of a chip conveying conveyor device for separating a cutting oil containing cutting chips generated by metal cutting such as cutting and grinding into chips and cutting oil.

  Conventionally, many filtration devices have been proposed for obtaining cutting oil that can be reused by separating it into cutting powder and cutting oil from cutting oil containing cutting chips generated by metal cutting by various machine tools. For example, Japanese Patent Application Laid-Open No. 2002-361539 (Patent Document 1) describes oil droplet-like coolant falling from the return belt conveying surface of a hinge belt, residual chip recovery rate, and coolant recovery rate to a turbid coolant treatment tank. There has been proposed a separation and recovery mechanism for a chip carry-out conveyor device that is improved and easy to operate and maintain during normal operation.

  Japanese Patent Laid-Open No. 2000-354933 (Patent Document 2) discloses a hinge provided with a liquid recovery means for preventing liquid from dropping from below the return side of the hinge conveyor and recovering a solid in a dry state. In the conveyor device, in order to prevent the liquid falling from the lower side of the return side of the hinge conveyor driven in an endless state from falling out of the tank, the edge of the pair of left and right roller mounting plates constituting the hinge conveyor On the other hand, there has been proposed a hinge conveyor device provided with a liquid recovery means provided with an elastic member that abuts in a natural state or is separated by a predetermined interval and elastically deforms.

JP 2002-361539 A JP 2000-354933 A

  However, the invention disclosed in Patent Document 1 described above is a separation means including a downhill plate that separates oil droplet-like coolant falling from the return belt conveyance surface of the hinge belt and residual chips while sliding down, By providing oil droplet recovery means that collects the oil droplet coolant captured by this separation means and returns it to the turbid coolant treatment tank, the chip recovery rate and coolant are improved. There is a problem that measures against draining of powder and chip accumulation at the conveyor tail portion are insufficient. On the other hand, the invention disclosed in Patent Document 2 is excellent for a hinge conveyor device provided with a liquid recovery means capable of recovering solids in a dry state. In addition, there remains a problem that measures against chip accumulation at the conveyor tail portion are insufficient.

  In order to solve the problems as described above, the inventors have made extensive developments. As a result, the chip unloading part is provided with a distance H from the conveyor, and the draining plate is positioned in the upper right direction from the horizontal and the drive sprocket. Provided in a state protruding by a length L from the tip, and further provided a swing plate on the draining plate, and turning the swing plate by the rotation of the driving sprocket to deposit the chips deposited on the draining plate Discharging from the tip of the draining board and providing a bucket inside the conveyor conveys the chip accumulation at the conveyor tail and prevents the removal of liquid when discharging chips and dust. The present invention provides a chip discharging mechanism of a chip conveying conveyor device.

The gist of the invention is as follows: (1) In the chip discharging mechanism of the chip conveying conveyor device that rotates around the conveyor tail part and the chip discharging part, the conveying part is connected to the chip discharging part. The chip discharging mechanism of the chip transporting conveyor device is characterized in that the draining plate is disposed in the upper right direction from the horizontal and protruding in the length L from the tip end portion of the driving sprocket.
(2) In the chip discharging mechanism of the chip conveying conveyor device according to (1), the swing plate is provided on the drain plate, and the swing plate is rotated or reciprocated back and forth by the rotation of the driving sprocket. A chip discharging mechanism for a chip conveying conveyor device, characterized in that chips accumulated on the chip are discharged from the tip of a draining plate.
(3) In the chip discharging mechanism of the chip conveying conveyor device according to (1) or (2) above, a bucket is provided inside the conveying conveyor, and chips are accumulated in the conveyor tail portion by the rotation of the conveying conveyor. It is in the chip discharging mechanism of the chip conveying conveyor device, wherein the chip is discharged out of the conveyor after being collected.

  As described above, by providing a chip draining plate and a swing plate in the chip discharging unit according to the present invention, it becomes easy to discharge the chip in the chip discharging unit, and to remove chips and dust. It was possible to prevent the liquid from being taken out during discharge. Furthermore, by providing buckets inside the conveyor, chip accumulation at the conveyor tail is eliminated, and the chip discharge device can be operated for a long time without requiring special maintenance. It plays.

Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overall schematic view of a chip conveying filtration apparatus according to the present invention. As shown in this figure, the conveyor 2 that runs around the conveyor provided inside the processing tank 1, the drive sprocket 3 around which the conveyor 2 is wound, and the tail disk 4 that is provided at the conveyor tail section, run around. The conveyor belt 2 is composed of a carry-out side belt 2a traveling on the upper side and a return side belt 2b traveling on the lower side.

  In the configuration as described above, the chips introduced by the metal working such as cutting and grinding of machine tools etc. in which large and small powders are mixed in the processing tank 1 are driven by the conveyor 2 by the conveyor 2. It is transported to the sprocket 3 side. In the meantime, large cuttings such as cutting and grinding are discharged from the discharge port 10 through the drive sprocket 3. Moreover, the cutting oil containing a small cutting powder, grinding powder, etc. falls to the lower side of the conveyor 2, and this mixed liquid flows out outside.

  A swing plate 8 is provided on the draining plate 6 at the lower portion of the driving sprocket in the chip discharging portion of such a chip conveying conveyor device, and the swing plate 8 is driven by the driving sprocket 3 by the rotation of the chip conveying conveyor. Is rotated or reciprocated back and forth, and the chips accumulated on the draining plate 6 are moved to the tip of the draining plate 6 and discharged. As a result, the chips accumulated on the draining plate 6 are drained without being accumulated on the treatment tank 1 side, and are discharged from the discharge port 10 by the swing plate 8 on the carry-out side. Here, especially when the swing plate 8 is reciprocated back and forth, it can be moved horizontally on the draining plate 6, so that the cutting remaining in the gap between the draining plate 6 and the swing plate 8 is returned from the swing plate 8. The powder can always be moved forward without taking it to the rear. Reference numeral 7 denotes a bucket.

  The above-described draining plate 6 is not limited to draining, but the object of the present invention is for separating the cutting oil containing cutting chips generated by metal cutting such as cutting and grinding into chips and cutting oil. In addition to separating water, this is a plate for separating liquid materials including mixed liquids including oil such as cutting oil. The conveyor may be a plate (or capilla) conveyor such as a hinge conveyor, an apron conveyor, a belt conveyor, etc. The conveyor is not particularly limited, and can carry chips, dust, etc. Any conveyor may be used.

  FIG. 2 is an enlarged view of a chip discharge part according to the present invention. As shown in this figure, an interval H is provided at the lower portion of the drive sprocket 3, and the interval H needs to be provided at an interval at which the swing plate 8 can be sufficiently rotated by the rotation of the drive sprocket 3. Further, the draining plate 6 is disposed in the upper right direction from the horizontal, and is provided in a state protruding from the tip end portion of the driving sprocket 3 by a length L.

  The draining plate 6 is arranged in the upper right direction from the horizontal when the chip transported by the chip conveyor is dropped directly below the driving sprocket 3 by the rotation of the driving sprocket 3. When provided horizontally, the oil and moisture of the chips 12 deposited on the draining plate 6 will be collected in the chip collection tank 11 without being completely drained. Therefore, in order to completely separate the oil and water, the chips dropped immediately below the drive sprocket 3 are drained in a state where a sufficient time is kept on the draining plate 6 and then collected in the chip collection tank 11. Because. For this purpose, it is desirable to provide the draining plate 6 with an inclination angle θ = 1 to 10 ° from the horizontal plane. If the angle is less than 1 °, the above effect is not sufficient, and if it exceeds 10 °, large chips are liable to fall in the lower direction of the treatment tank 1, which is not preferable. Therefore, preferably 3 to 7 ° is more preferable.

  Further, the protruding length L of the draining plate 6 is such that L = 1 / 5H from the position where the chips conveyed by the chip conveying conveyor fall directly below the driving sprocket 3 due to the rotation of the driving sprocket 3. It is desirable to set to ~ 1 / 2H. If L is less than 1 / 4H, the draining effect is not sufficient, and if it exceeds 1 / 2H, the draining effect is sufficiently obtained. However, the transfer energy for collecting in the chip collecting tank 11 becomes large, which is not preferable. . A more preferable range is 1 / 4H to 1 / 3H.

  FIG. 3 is an explanatory view of a swing plate according to the present invention. As shown in this figure, the swing plate provided on the draining plate 6 rotates the driving sprocket simultaneously with the rotation of the chip conveying conveyor, and the rotation causes the swing plate 8 to rotate by the cam 9 via the arm 14. Then, the chips 12 accumulated on the draining plate 6 are moved to the discharge port 10 side to discharge the chips 12. Reference numeral 13 denotes a spring. The swing plate 8 is rotated by the cam 9 through the arm 14 by the rotation of the driving sprocket, and the chips 12 accumulated by the swing plate 8 are moved to the discharge port 10 side. The rest is for returning to the original state. The operation for discharging the chips accumulated on the draining plate is not limited to the above-mentioned equipment, and the swing plate rotates or reciprocates back and forth to remove the chips accumulated on the draining plate. Anything that can be moved to the exit is acceptable.

  On the other hand, as described above, in the present invention, the draining plate 6 is arranged in the upper right direction from the horizontal, so that the chips transported by the chip conveyor are rotated by the rotation of the driving sprocket 3. The oil and moisture of the chips 12 accumulated on the draining plate 6 when it falls directly below the draining plate 6 makes it possible to completely drain the water. There is a high possibility that the powder falls to the lower side of the inside of the treatment tank 1, which is the opposite side to the discharge port 10 side, and the amount of the fall is greater than that in which the draining plate 6 is installed horizontally.

  The above-mentioned swarf that falls to the lower side inside the processing tank 1 is provided with the bucket 7 inside the transport conveyor 2 that is a feature of the present invention. Chips accumulated on the conveyor tail side can be collected by the bucket 7 and discharged to the outside of the conveyor. That is, in particular, by providing a bucket 7 on the conveyor plate, the bucket 7 scrapes up small chips accumulated on the conveyor tail side during reverse running at the bottom of the processing tank 1 and the conveyor tail, It is transported along with large chips by a traveling conveyor belt and can be discharged to the outside of the conveyor.

  As described above, by providing a chip draining plate in the chip discharge portion according to the present invention, and by providing a swing plate, it is easy to discharge the chips accumulated on the drain plate in the chip discharge portion, In addition, by providing buckets inside the conveyor, it is possible to eliminate chip accumulation at the conveyor tail and prevent the removal of liquid when discharging chips and dust. This makes it possible to operate without any special maintenance.

1 is an overall schematic view of a chip conveying filter device according to the present invention. It is an enlarged view of the chip discharge part which concerns on this invention. It is explanatory drawing of the swing board which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Processing tank 2 Conveyor 2a Unloading side belt 2b Return side belt 3 Drive sprocket 4 Tail disk 5 Input port 6 Drain plate 7 Bucket 8 Swing plate 9 Cam 10 Drain port 11 Chip collection tank 12 Chip 13 Spring 14 Arm


Patent Applicant F-Cist
Attorney: Attorney Shiina

Claims (3)

In the chip discharging mechanism of the chip conveying conveyor device that rotates around the conveyor tail part and the chip discharging part side, the chip discharging part is provided with an interval H from the conveying conveyor, and the draining plate is moved horizontally. A chip discharging mechanism of a chip conveying conveyor device, characterized in that the chip is disposed in the upper right direction and in a state protruding by a length L from the tip of the driving sprocket. 2. The chip discharging mechanism of the chip conveying conveyor apparatus according to claim 1, wherein the swing plate is provided on the draining plate, and the swing plate is rotated or reciprocated back and forth by the rotation of the driving sprocket and deposited on the draining plate. A chip discharging mechanism for a chip conveying conveyor device, wherein chips are discharged from the tip of a draining plate. 3. The chip discharge mechanism of the chip conveyor apparatus according to claim 1 or 2, wherein a bucket is provided inside the conveyor and the chip is collected at the conveyor tail portion by rotation of the conveyor and then the conveyor. A chip discharging mechanism of a chip conveying conveyor device, characterized by being discharged to the outside.

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