JPH07124843A - Chip conveying device - Google Patents

Abstract

PURPOSE:To separate chips and the cutting oil sufficiently and securely by providing a filtering member which consists of a sheet on which numerous small holes are formed densely in the form to cover the opening of an outer casing pipe, to the outer casing pipe of a screw conveyer. CONSTITUTION:The major part of the cutting oil exhausted in a large quantity from a machine tool 1 together with cutting chips is removed through an upper side peripheral wall 22 when the cutting oil is thrown in a cutting chip receiver tray 20. Furthermore, on the way of conveying by a screw conveyer 10, it is to be removed through a filtering member 15 provided to an outer casing pipe 11, and the cutting chips and the cutting oil are separated securely. While the cutting chips are thrown in a cutting chip housing box, the cutting oil is stored in a cutting oil tank 2. The cutting oil stored in the cutting oil tank 2 is circulated to the machine tool 1 by a system consisting of an oil pump and the like, and it is used again in the machine tool 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting waste conveying device for treating cutting waste containing cutting oil discharged from a machine tool.

[0002]

Cutting chips discharged from various machine tools contain a large amount of cutting oil supplied during machining. Therefore, it has been conventionally practiced to carry this cutting waste into a large container and collect and reuse the cutting oil accumulated at the bottom of the large container.

[0003]

By the way, in the above-mentioned conventional method, since the cutting debris is carried into the large container and the cutting oil is collected from the large container by the manual work of the worker, The member was forced to do a great deal of work. In order to eliminate such inconvenience, while adopting a screw conveyor as a conveying means, by sending out the cutting oil through a small hole provided in the bottom portion of the outer cylinder pipe in the screw conveyor, it is possible to convey the cutting waste. A configuration is provided for simultaneously processing the cutting oil recovery operation.
However, in such a configuration, it is difficult to set the diameter of the small hole in the screw conveyor, and it is extremely difficult to reliably and sufficiently separate the cutting waste and the cutting oil. That is, when the small holes are small, the cutting oil does not sufficiently flow out from the outer cylinder pipe,
The cutting chips are sent out to the recovery box while containing a large amount of cutting oil, and when the small holes are large, fine cutting chips flow out together with the cutting oil. In view of the above situation, an object of the present invention is to provide a cutting waste transporting device capable of sufficiently and reliably separating cutting waste and cutting oil, and carrying cutting waste and collecting cutting oil. is there.

[0004]

In the cutting waste conveying apparatus according to the present invention, an outer cylinder pipe of a screw conveyor installed in a vertically inclined manner is opened at least in an upper half in a downstream region of a cutting waste feeding port. With a section,
While providing a filtering member made of a thin plate in which a large number of small holes are densely formed so as to cover this opening, a slanted guide portion communicating with the screw conveyor is provided in the lower portion and a large number of small holes are densely formed in the upper peripheral wall. A cutting waste receiving tray constituted by a filtering member made of a thin plate is interposed between the cutting waste outlet of the machine tool and the cutting waste input port of the screw conveyor. Further, in the cutting waste transporting apparatus according to the present invention, a screw of a screw conveyor, a brush unit including a brush that is in sliding contact with the entire inner peripheral surface of the filtering member provided in the outer pipe as the screw rotates. It is provided.

[0005]

According to the above-mentioned structure, when the cutting waste is put into the cutting waste receiving tray from the machine tool, a large amount of the cutting waste is contained in the cutting waste receiving tray through the upper peripheral wall made of the filtering member in the cutting waste receiving tray. Most of the cutting oil is removed, and then, the cutting oil that is put into the screw conveyor from the cutting waste tray is removed through the opening provided in the outer pipe and the filtering member. . Further, the brush unit rotates together with the screw based on the operation of the screw conveyor, whereby clogging of the filter member in the screw conveyor is prevented in advance.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings showing one embodiment. The processing equipment shown in FIG. 1 and FIG. 2 includes a machine tool 1 and a screw conveyor 10, and a cutting waste tray 20 is interposed between the machine tool 1 and the screw conveyor 10. The cutting oil tank 2 is installed in the lower region of the screw conveyor 10,
And a chip receiving tray 20 for conveying the chip transfer device 10
0 is configured.

As shown in FIGS. 1 to 3, the screw conveyor 10 includes an outer cylinder pipe 11 and the outer cylinder pipe 1.
1, a screw 12 housed and installed in the inside of the device 1, and a drive motor 13 with a speed reducer for rotating the screw 12.
And the screw conveyor 10 described above.
1 is installed in a manner inclined with respect to the vertical direction as shown in FIG. 1, and a cutting waste inlet 11i is provided on the lower end side of the outer cylinder pipe 11, while the upper end of the outer cylinder pipe 11 is A cutting waste discharge port 11o is provided on the side.

Further, the outer cylinder pipe 11 of the screw conveyor 10 has an opening 11 in the upper half in the downstream region (right side in FIG. 1) of the cutting waste inlet 11i.
A is formed, and the opening 11A is covered with a filter member 15 made of a thin plate in which a large number of small holes that prevent passage of cutting chips and allow passage of cutting oil are densely formed.

The filtering member 15 is composed of a metal plate having a large number of small holes, which are generally called punching metal, and the outer cylinder pipe 11 has a diameter of 5 mm.
A punching metal having small holes of about mm to 6 mm is attached as the filtering member 15. Further, the filtering member 15 is attached to the outer cylinder pipe 11 via a bolt, and the outer cylinder pipe 1 is used at the time of cleaning work or replacement.
It is possible to easily attach and detach to and from 1.

On the other hand, as shown in FIGS. 3 and 4, the screw 12 of the screw conveyor 10 is a drive pipe 1 connected to a drive shaft of a drive motor 13 with a reduction gear.
2A and a screw blade 12B fixedly provided on the outer periphery of the drive pipe 12A, and three brush units 17 are attached to the drive pipe 12A of the screw 12.

Each of the brush units 17 has a bolt 17
a and a brush 17c provided at the end of the bolt 17a via a brush holder 17b, the pair of nuts 17
It is attached to the drive pipe 12A by d and 17d, and rotates with the rotation of the screw 12.

Further, when the brush units 17 rotate as the screw 12 rotates, the inner peripheral surface of the punching metal 15 attached to the outer pipe 11 covers the entire area of the brushes 17c. Are arranged side by side along the axis of the drive pipe 12A in a manner to be wiped by
Further, they are arranged with the same central angle with respect to the drive pipe 12A.

On the other hand, as shown in FIGS. 1 and 2, the cutting waste outlet 1A and the screw conveyor 10 in the machine tool 1 are shown.
The cutting debris receiving tray 20 is interposed between the cutting debris receiving port 11i and the cutting debris receiving port 11i, and the screw conveyor 10 is provided below the cutting debris receiving tray 20.
The slanted guide portion 21 communicating with the outer cylinder pipe 11 is formed, and the upper peripheral wall 22 of the cutting waste receiving tray 20 is a filtering member (punching metal) made of a thin plate in which a large number of small holes are densely formed. It is composed by.

The cutting waste receiving tray 20 is fitted into the cutting waste outlet 1A of the machine tool 1 and bolted to the outer pipe 11 of the screw conveyor 10 for cleaning. It can be easily removed during work or replacement, and mounting work is easy.

As shown in FIGS. 1 and 2, the above-mentioned cutting oil tank 2 is arranged in the lower region of the screw conveyor 10 and the cutting waste tray 20 so as to be adjacent to the machine tool 1. A wire mesh 2A is provided inside, and a pressure feeding device (not shown) including an oil pump or the like is provided for returning the cutting oil stored therein to the machine tool.

In the area below the cutting waste discharge port 11o of the screw conveyor 10, the above-mentioned cutting waste discharge port 11o is provided.
A not-shown cutting debris storage box is provided for receiving and storing cutting debris discarded from o.

When the processing equipment having the above-described structure starts to operate, the cutting waste generated in the machine tool 1 is first transferred to the cutting waste receiving tray 20 together with a large amount of cutting oil via the cutting waste outlet 1A in the machine tool 1. It is thrown in.

Here, most of the cutting oil that has been put into the cutting waste receiving tray 20 together with the cutting waste is discharged to the outside through the upper peripheral wall 22 of the cutting waste receiving tray 20 which is composed of a filtering member, and is positioned below. It is dropped inside the cutting oil tank 2 and stored.

Further, the cutting waste put in the cutting waste receiving tray 20 is washed off by the cutting oil on the inclined guide portion 21 of the cutting waste receiving tray 20.
Inside the outer cylinder pipe 11 of the screw conveyor 10, the cutting scraps inlet 11i formed in the outer cylinder pipe 11
It is input together with the cutting oil via.

The cutting debris introduced into the outer cylinder pipe 11 of the screw conveyor 10 is moved inside the outer cylinder pipe 21 from the cutting debris inlet 11i based on the rotation of the screw 12 driven by the motor 13 with a reducer. In a mode of going to the right in FIG. 1, it is conveyed obliquely upward toward the cutting waste discharge port 11o and is thrown into a cutting waste storage box (not shown) via the cutting waste discharge port 11o.

Here, a large amount of cutting oil is still contained in the cutting waste when it is introduced into the outer cylinder pipe 11 through the cutting waste introduction port 11i.
11A, which is conveyed along with the cutting debris based on the rotation of the cutting debris but is formed in the downstream region of the cutting debris inlet 11i.
When it reaches, the gas is discharged to the outside of the outer cylinder pipe 11 through the opening 11A and the filtering member (punching metal) 15 that covers the opening 11A.

That is, most of the cutting oil discharged from the machine tool 1 together with the cutting debris is removed through the upper peripheral wall 22 when being introduced into the cutting debris receiving tray 20, and further by the screw conveyor 10. During transportation, it is removed through the filtering member 15 provided on the outer pipe 11, so that the cutting debris and the cutting oil are reliably separated, and the cutting debris is stored in a cutting debris storage box (not shown). While being discarded, the cutting oil is stored in the cutting oil tank 2.

Further, the filtering member 5 provided on the outer cylinder pipe 11 of the screw conveyor 10 is constantly cleaned by the brush 17c of the brush unit 17 which operates based on the rotation of the screw 12, whereby fine cutting is performed. Clogging of the filter member 15 due to scraps is prevented in advance, so that the cutting scraps and the cutting oil are reliably separated in the screw conveyor 10.

The cutting oil discharged from the outer cylinder pipe 11 of the screw conveyor 10 through the filtering member 15 to the outside falls into the cutting oil tank 2 located below and is stored therein. The cutting oil stored in 2 is returned to the machine tool 1 by a device (not shown) such as an oil pump, and is reused in the machine tool 1.

In the above-described embodiment, the filtering member 15 of the screw conveyor 10 and the upper peripheral wall 22 of the cutting waste tray 20 are made of punching metal, respectively. However, a thin plate having a large number of small holes densely formed therein is used. If it is the member, it is possible to use an appropriate member such as a wire mesh as the filtering member.

In addition, in the above-described embodiment, three brush units 1 are provided on the screw 12 of the screw conveyor 10.
7, the number of brush units to be installed depends on the size of the filtering member along the axial direction of the outer pipe,
It goes without saying that it is appropriately set based on various conditions such as the inner diameter of the outer pipe.

Further, the cutting waste conveying device according to the present invention is effective as means for conveying cutting scraps and collecting cutting oils for various machine tools which discharge cutting scraps containing cutting oil. Of course, it can be applied.

[0028]

As described above in detail, in the cutting waste conveying apparatus according to the present invention, at least the area downstream of the cutting waste feeding port is provided in the outer pipe of the screw conveyor installed in a vertically inclined manner. While providing an opening in the upper half and providing a filtering member made of a thin plate in which a large number of small holes are densely formed so as to cover the opening, the lower part has an inclined guide part communicating with the screw conveyor and the upper part. A cutting debris receiving tray having a peripheral wall formed of a filtering member made of a thin plate in which a large number of small holes are densely formed is interposed between a cutting debris outlet of a machine tool and the cutting debris inlet of the screw conveyor. . According to the above configuration, when the cutting waste is fed from the machine tool to the cutting waste receiving tray, a large amount of cutting oil contained in the cutting waste is passed through the upper peripheral wall formed of the filtering member in the cutting waste receiving tray. The cutting oil is removed from the cutting waste that has been partly removed and then put into the screw conveyor from the cutting waste receiving tray through the opening provided in the outer cylinder pipe and the filtering member. The cutting oil can be separated sufficiently and surely. Further, in the cutting waste transporting apparatus according to the present invention, a screw of a screw conveyor, a brush unit including a brush that is in sliding contact with the entire inner peripheral surface of the filtering member provided in the outer pipe as the screw rotates. Since the brush unit rotates together with the screw based on the operation of the screw conveyor, the clogging of the filter member in the screw conveyor is prevented in advance, and thus the cutting waste and the cutting oil are sufficiently and reliably separated. It became possible to do.

[Brief description of drawings]

FIG. 1 is an overall side view showing a cutting waste conveying device according to the present invention.

FIG. 2 is an overall perspective view showing a cutting waste transportation device according to the present invention.

FIG. 3 is a cross-sectional side view showing a main part of a screw conveyor of the cutting waste transportation device according to the present invention in a broken manner.

4 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Machine tool, 1A ... Cutting waste outlet, 2 ... Cutting oil tank, 10 ... Screw conveyor, 11 ... Outer cylinder pipe, 11i ... Cutting waste input port, 11o ... Cutting waste outlet, 11A ... Opening part, 12 ... Screw , 12A ... Drive pipe, 12B ... Screw blade, 13 ... Motor with speed reducer, 15 ... Filtration member, 17 ... Brush unit, 17c ... Brush, 20 ... Cutting waste tray, 21 ... Guide part, 22 ... Upper peripheral wall (filtration) Member), 100 ... Cutting waste conveying device.

Claims (2)

[Claims] 1. A cutting waste, which is installed in a vertically inclined manner and contains cutting oil discharged from a machine tool, passes from a cutting waste input port at one end of the outer pipe to a cutting waste discharge port at the other end. A thin plate in which a large number of small holes are densely formed so as to cover the opening and at least an upper half of the outer cylinder pipe in the downstream region of the cutting waste charging port. A screw conveyor provided with a filtering member on the outer pipe, and a slanted guide that is interposed between the cutting waste outlet of the machine tool and the cutting waste input port of the screw conveyor and communicates with the screw conveyor at the bottom. And a cutting waste tray having an upper peripheral wall made of a filtering member made of a thin plate in which a large number of small holes are densely formed. That cutting chips carrying device. 2. A brush housed and installed inside the outer cylinder pipe of the screw conveyor, and a brush that rotates together with the screw and makes sliding contact with the entire inner peripheral surface of the filtering member provided on the outer cylinder pipe. The cutting waste carrier according to claim 1, further comprising a brush unit provided therein.