JP2010173041A - Chip collecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compact and inexpensive chip collecting device with the favorable consumption efficiency of a cutting liquid. <P>SOLUTION: The chip collecting device 1 carries chips 5 generated by machining an object 3 to be worked by a machine tool 2 and including the cutting liquid 4 attached by a chain conveyor 10, and separates the chips 5 attached to the cutting liquid 4 by the cutting liquid 4, and the chips 5 for collection. The device includes an impeller 20 turned in one direction by capturing the chips 5 attached with the cutting liquid 4 dropped from an outlet 17 of the chain conveyor 10 for separating the chips 5 attached with the cutting liquid 4 to the cutting liquid 4 and the chips 5, and a return chute 40 for collecting the cutting liquid 4 dropped from the impeller 20. The impeller 20 includes a pocket 22a into which the cutting liquid 4 attached to the chips 5 flows. The rotation of the impeller 20 makes the cutting liquid 4 attached to the chips 5 flow into the pocket 22a, and separated from the chips 5. After the chips 5 is dropped to a carrier 30, the cutting liquid 4 is dropped to the return chute 40. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a chip collection device, and more particularly, to a draining mechanism that separates chip and cutting fluid.

When machining such as cutting with a machine tool, a cutting fluid such as water in which cutting oil or a lubricant is dissolved is used to cool a workpiece or the like. Therefore, cutting fluid adheres to the chips generated during the processing, and the chips to which the cutting fluid adheres are collected by a chip collecting device arranged in the vicinity of the machine tool.
2. Description of the Related Art Conventionally, a chip collection device is configured to convey a chip on which cutting fluid adheres obliquely upward by an inclined chain conveyor, and then drop and discharge the chip onto a carriage. Then, the chips discharged to the carriage are separated from the cutting fluid by a centrifuge, and the cutting fluid is disposed as industrial waste. As described above, the conventional chip collection device has a problem that the cutting fluid consumption efficiency is poor because the used cutting fluid is not reused and discarded as it is.

  In order to solve the above-mentioned problems, the chips and cutting fluid can be separated (drained) while changing the posture of the chips when the chips are conveyed by the chain conveyor, and the cutting fluid can be reused. In order to sufficiently separate the chip and the cutting fluid (draining), it is necessary to secure a time for separating the chip and the cutting fluid by lengthening the conveying path of the chip. Since a transport distance (the length of the chain conveyor) is required, there is a risk of increasing the size of the facility.

  Then, although the chip collection device can be made small by using the draining device described in Patent Document 1, the draining device is configured to rotate by a power source, and thus it is difficult to reduce the cost. .

JP-A-11-33870

  It is an object of the present invention to provide a small and inexpensive chip collecting device with good cutting fluid consumption efficiency.

  In Claim 1, the chip | tip which generate | occur | produced by the process with a machine tool, and the cutting fluid with the cutting fluid adhering is conveyed with a conveyor, and the cutting fluid to which the cutting fluid adheres is separated into the cutting fluid and the cutting waste and collected. In the powder recovery device, the cutting fluid adhered to the cutting fluid dropped from the conveyor outlet is rotated in one direction to separate the cutting fluid adhered to the cutting fluid and the chips. An impeller and a passage for collecting the cutting fluid dropped from the impeller, the impeller includes a pocket into which the cutting fluid adhering to the chip flows, and by rotation of the impeller, The cutting fluid adhering to the chips flows into the pocket and is separated from the chips, and after the chips are dropped from the impeller, the cutting fluid is dropped into the passage.

  According to the present invention, the cutting fluid consumption efficiency can be improved by reusing the cutting fluid. In addition, the equipment can be downsized and the cost can be reduced.

Schematic which shows the structure of the chip collection | recovery apparatus which concerns on one Embodiment of this invention. It is a figure which shows the draining blade of an impeller, (a) is a perspective view, (b) is side sectional drawing. It is a figure which shows the draining process of a chip, (a) is a figure which shows capture | acquisition of the chip by an impeller, (b) is a figure which showed inflow of the cutting fluid to the pocket of an impeller, (c) is cutting The figure which shows the fall from the impeller of the chip isolate | separated with the liquid, (d) is a figure which shows the fall to the return chute of the cutting fluid which remains in the pocket of an impeller.

  Below, the chip collection | recovery apparatus 1 which concerns on one Embodiment of this invention is demonstrated.

The chip collecting device 1 is generated by processing the workpiece 3 by the machine tool 2 and collects the chip 5 in a state where the cutting liquid 4 is adhered, separated into the cutting liquid 4 and the chip 5. .
The machine tool 2 is a processing machine that performs machining (cutting) on the workpiece 3, and performs machining while injecting the cutting fluid 4 onto the workpiece to cool the workpiece of the workpiece 3. It is something to apply. For this reason, during machining by the machine tool 2, the cutting fluid 4 is attached to the chips 5 of the workpiece 3.
Further, the chips 5 in the state where the cutting fluid 4 is adhered, generated by processing the workpiece 3, are deposited below the machine tool 2.

  As shown in FIG. 1, the chip collection device 1 includes a chain conveyor 10, an impeller 20, a carriage 30, and a return chute 40, and the cutting fluid 4 deposited below the machine tool 2 as described above. The adhering chips 5 (hereinafter referred to as “mixture 6”) are conveyed by the chain conveyor 10 and dropped onto the impeller 20 so that the chips 5 are separated into the carriage 30 and the cutting fluid 4 is separated into the return chute 40. It is to be collected.

The chain conveyor 10 is a conveyor that conveys the mixture 6 to a carry-out port 17 formed in the upper part of the chip collection device 1, and extends obliquely upward from the lower side of the machine tool 2 toward the carry-out port 17.
The chain conveyor 10 includes a drive shaft 11, drive sprockets 12a and 12b, a driven shaft 13, driven sprockets 14a and 14b, chains 15a and 15b, a plurality of scrapers 16, and the like.

Drive sprockets 12a and 12b are fixed to both ends of a drive shaft 11 that is rotationally driven by a drive device (not shown), and driven sprockets 14a and 14b are fixed to both ends of a driven shaft 13 that is rotatably driven. The chain 15a is hung between the drive sprocket 12a and the driven sprocket 14a, and the chain 15b is hung between the drive sprocket 12b and the driven sprocket 14b.
Further, an L-shaped scraper 16 is interposed between the chain 15a and the chain 15b, and a plurality of them are arranged at predetermined intervals in the length direction of the chain 15a (15b).

  In this way, the chain conveyor 10 drives the chains 15a and 15b via the drive sprockets 12a and 12b by a drive device (not shown) driving the drive shaft 11 counterclockwise in the drawing, and the scraper 16 is used to drive the machine tool. 2, the mixture 6 deposited below 2 is conveyed to the carry-out port 17.

The impeller 20 is rotatably provided below the carry-out port 17, captures the mixture 6 dropped from the carry-out port 17, separates it into the cutting fluid 4 and the chips 5, and turns the chips 5 into the cart 30. The cutting fluid 4 is dropped and dropped onto the return chute 40.
The impeller 20 is disposed in a path that communicates the carry-out port 17 of the chain conveyor 10 and the carriage 30 and is configured to rotate in one direction (clockwise in the drawing). The carriage 30 is disposed on the front side in the rotational direction of the impeller 20 and the return chute 40 is disposed on the far side. That is, the impeller 20 that captures and rotates the mixture 6 separates the mixture 6 into the cutting fluid 4 and the chips 5, discharges the chips 5 to the carriage 30, and supplies the cutting fluid 4 to the return chute 40. Configured to drain.
The impeller 20 includes a rotating shaft 21 provided rotatably and four draining blades 22 provided with the same phase difference in the circumferential direction of the rotating shaft 21.

As shown in FIG. 2 (a), the draining blade 22 includes a main body portion 23 extending in the radial direction of the rotary shaft 21, and side portions 24, which are fixed to both ends of the main body portion 23 in the direction of the rotary shaft 21. 24 etc.
As shown in FIG. 2 (b), the main body portion 23 of the draining blade 22 is bent by bending the end portion in the extending direction of the main body portion 23 in the direction opposite to the rotation direction of the impeller 20 (clockwise in the drawing). A portion 25 is formed. In this way, a pocket 22 a surrounded by the side portions 24, 24 and the bent portion 25 of the main body portion 23 is formed at the end portion of the draining blade 22 in the extending direction.
The cutting fluid 4 of the mixture 6 flows into the pocket 22a by the inclination of the main body portion 23 of the draining blade 22 generated by the rotation of the impeller 20. And the pocket 22a is comprised so that the cutting fluid 4 can be hold | maintained until it reaches the position where the impeller 20 rotates and the cutting fluid 4 is dropped to the return chute 40 (refer FIG. 1).

As shown in FIG. 3A, the impeller 20 is rotated by contact with the mixture 6 dropped toward the impeller 20. At this time, the drop position of the mixture 6 to the impeller 20 and the position of the impeller 20 are set so that the impeller 20 captures the mixture 6 and rotates clockwise in the drawing.
That is, the mixture 6 that falls from the carry-out port 17 of the chain conveyor 10 toward the impeller 20 is closer to the rotating direction of the impeller 20 than the rotating shaft 21 of the impeller 20 (from the rotating shaft 21 on FIG. 3A). The drop position of the mixture 6 onto the impeller 20 and the position of the impeller 20 are set so as to fall to the right side.

  Then, as shown in FIG. 3B, the mixture 6 falls and is captured on the main body portion 23 of any draining blade 22 of the impeller 20, and the impeller 20 is captured by its own weight. Is further rotated. The mixture 6 dropped on the main body 23 of the draining blade 22 is attracted to the pocket 22a side by the centrifugal force generated by the inclination of the main body 23 and the rotation of the impeller 20. At this time, the cutting fluid 4, which is a liquid, flows into the pocket 22 a and is separated from the chips 5. Note that the cutting fluid 4 and the chips 5 on the main body 23 of the draining blade 22 are prevented from dropping from the end side in the extending direction of the main body 23 by the side portions 24 and 24 (see FIG. 2A). Is done.

As shown in FIG. 3C, when the impeller 20 further rotates, the chips 5 retained on the draining blade 22 by the bent portion 25 pass over the bent portion 25 to the carriage 30 (see FIG. 1). Be dropped. At this time, the shape or the like of the bent portion 25 is set so that the cutting fluid 4 in the pocket 22a does not fall on the carriage 30 beyond the bent portion 25.
The chips 5 dropped and loaded on the carriage 30 are transported by the carriage 30 and discarded.

  As shown in FIG. 3 (d), the impeller 20 further rotates, and finally the cutting fluid 4 in the pocket 22 a is dropped onto the return chute 40.

The rotational speed of the impeller 20 is adjusted by changing the rotational resistance of the rotary shaft 21, and the impeller 20 captures the mixture 6 and separates it into the cutting fluid 4 and the chips 5, and the chips 5. Is set so that the cutting fluid 4 can be dropped onto the return chute 40.
In addition, the shape of the pocket 22a, the number of draining blades 22 and the like are such that the impeller 20 separates the mixture 6 into the cutting fluid 4 and the cutting powder 5 and drops the cutting powder 5 onto the carriage 30 so that the cutting fluid 4 is removed. What is necessary is just to be able to make it fall to the return chute 40, and it is not limited to this embodiment.

  Thus, the impeller 20 is rotated in one direction (clockwise in the drawing) by the mixture 6 dropped from the carry-out port 17, and the cutting fluid adhered to the chips 5 in the pockets 22 a formed in the draining blades 22. 4 is allowed to flow into and separated from the chips 5, and the cutting fluid 4 is dropped onto the carriage 30 by shifting the timing of the cutting fluid 4 and the chips 5 to fall, and then the cutting fluid 4 is dropped onto the return chute 40. It is supposed to be configured.

As described above, the mixture 6 can be cut only by providing the impeller 20 having the pocket 22a into which the cutting fluid 4 of the mixture 6 flows in the path connecting the carry-out port 17 of the chain conveyor 10 and the carriage 30. Since the liquid 4 and the chips 5 are well separated (drained), the chip collection device 1 can be made small.
Further, the impeller 20 rotates due to a drop impact of the cutting fluid 4 and the chips 5, or its own weight. That is, since the impeller 20 does not require a power source, the chip collection device 1 can be made inexpensive.

The return chute 40 is a passage for collecting the cutting fluid 4 dropped from the impeller 20.
The return chute 40 is formed on the wall on the side of the chain conveyor 10 below the impeller 20 so that the space below the impeller 20 and a storage portion of the cutting fluid 4 (not shown) communicate with each other. And has a predetermined inclination so that the cutting fluid 4 flows. The return chute 40 is opened upward so that the cutting fluid 4 dropped from the impeller 20 can be collected.

  Thus, the cutting fluid 4 stored in the storage portion of the cutting fluid 4 through the return chute 40 from the impeller 20 can be reused, and the consumption efficiency of the cutting fluid 4 can be improved. The cutting fluid 4 collected by the return chute 40 may be mixed with the cutting powder 5, but the cutting powder 5 may be removed using a separate filter or the like. In the present embodiment, the cutting fluid 4 collected by the return chute 40 is stored in the reservoir. However, the cutting fluid 4 may be reused, for example, by circulating the cutting fluid 4, and is limited to the present embodiment. Not what you want.

DESCRIPTION OF SYMBOLS 1 Chip collection device 4 Cutting fluid 5 Chip 6 Mixture 10 Chain conveyor 17 Unloading port 20 Impeller 22 Draining blade 22a Pocket 30 Carriage 40 Return chute

Claims (1)

It is generated by machining with a machine tool, and the chips with the cutting fluid attached are conveyed by a conveyor.
In the chip recovery device for separating and recovering the cutting fluid adhering to the cutting fluid and the cutting fluid,
An impeller that rotates in one direction by capturing the chips attached to the cutting fluid dropped from the carry-out port of the conveyor, and separates the chips attached to the cutting fluid into cutting fluid and chips;
A passage for collecting the cutting fluid dropped from the impeller,
The impeller includes a pocket into which cutting fluid adhering to the chip flows,
The cutting fluid adhering to the chips flows into the pocket by the rotation of the impeller to separate from the chips, and after dropping the chips from the impeller, the cutting fluid falls into the passage. A chip collection device characterized by being made.

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