JPH09201740A - Cutting waste transporter - Google Patents

Abstract

(57) Abstract: An object of the present invention is to prevent the occurrence of overflow due to clogging of a filter member and malfunction due to biting of cutting waste. Is provided. A charging unit (10A) into which cutting chips containing cutting oil are charged, and a filtering unit (10) for separating cutting chips and cutting oil.
A hopper 10 having B is provided so as to face the cutting waste input port 2i of the cylindrical casing 2, a punching metal 22 is further provided on the outer periphery, and the hopper 10 is rotatably installed above the cutting waste input port 2i of the cylindrical casing 2, The punching metal 22 separates the cutting waste and the cutting oil, and the cutting oil is supplied to the hopper 10.
The drum filter 20 that discharges to the outside of the hopper 10 is provided in the filtering unit 10B of the hopper 10.

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 carrying cutting waste mixed with cutting oil and discharged from a machine tool or the like, and more specifically to separating cutting waste from cutting oil. Regarding the structure.

[0002]

2. Description of the Related Art Cutting chips discharged from various machine tools contain a large amount of cutting oil supplied during machining, and the cutting oil is recovered by separating the cutting chips from the cutting oil. Re-use has conventionally been performed. The applicant of the present application, in the previous application (Japanese Patent Application No. 6-277960),
As shown in FIGS. 9 to 11, a cylindrical casing B having an opening Bo in the upper half of the peripheral wall in the downstream region of the cutting waste inlet Bi, and a cutting casing that is housed and installed inside the cylindrical casing B to convey the cutting waste. And a screw C for rotating the window Bo, which is rotatably loosely fitted to the cylindrical casing B so as to cover the opening Bo and faces the opening Bo when rotating.
And a cutting dust transporting device A having a drum filter D having a filter member Df covering the window Do on the outer circumference. According to the above-mentioned configuration, the cutting dust thrown into the tubular casing B is cut through the opening Bo of the tubular casing B and the window Do of the drum filter D, and the filtering member Df covering the window Do. While a large amount of cutting oil contained in the scraps is separated, the cutting scraps that have entered the window Do of the drum filter D through the opening Bo of the cylindrical casing B are the edges of the window Do based on the rotating operation of the drum filter D. The portion and the edge of the opening Bo cooperate with each other to finely cut.

[0003]

By the way, in the conventional cutting waste carrier A, as described above, the cutting waste and the cutting oil overflowing from the opening Bo of the cylindrical casing B and the window Do of the drum filter D are filtered by the filtering member. The cutting dust separated by Df and attached to the filtering member Df is configured to be removed by free fall accompanying the rotation of the drum filter D and air blown from the blow nozzle N. However, in the above-described configuration, the cutting dust cannot be efficiently removed from the filtering member Df, and the opening B is formed in the cylindrical casing B.
Since o is provided, most of the cutting waste during transportation is spilled into the inside of the drum filter D and a large amount of cutting waste is attached to the filtering member Df, so that the cutting oil passing through the filtering member Df is There is a possibility that the decrease may cause an overflow, that is, an inconvenience that the cutting waste and the cutting oil overflow from the cutting waste input port Bi. Also,
In the above-described cutting waste conveying device A, the cutting waste is caught in a slight gap between the outer periphery of the cylindrical casing B and the drum filter D, whereby deformation of each component such as the drum filter D and the drum filter D are prevented. There is an inconvenience that causes a malfunction due to a load being applied to a driving motor or the like. In view of the above situation, the present invention prevents the occurrence of overflow due to the clogging of the filter member, and the occurrence of malfunction due to the biting of the cutting waste, while sufficiently removing the cutting waste and the cutting oil. It is an object of the present invention to provide a cutting waste transporting device that can reliably separate and transport cutting waste and recover cutting oil.

[0004]

In order to achieve the above object, in a cutting waste transporting apparatus according to the present invention, an input portion into which cutting waste including cutting oil is input, and the cutting waste and the cutting fluid flowing in from this input portion. A hopper having a filtering section for separating oil and oil is provided facing the cutting waste input port of the tubular casing,
Further, the filter section of the hopper is provided with a filter member for separating cutting waste and cutting oil on the outer periphery, is located above the cutting waste input port of the cylindrical casing, and is rotatably installed around the axis. A drum filter is provided which separates the cutting waste and the cutting oil by the filter member and discharges the separated cutting oil to the outside of the hopper.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings showing one embodiment. As shown in FIGS. 1 and 8, a screw conveyor 1 as a cutting waste conveying device according to the present invention includes a tubular casing 2 and a screw 3 housed inside the tubular casing 2.

As shown in FIG. 1, the cylindrical casing 2 is installed in a manner inclined with respect to the horizontal direction, and has a cutting waste inlet opening upward on the outer periphery of the lower end. While 2i is formed, a cutting waste discharge port 2o that opens downward is formed on the outer periphery of the upper end.

A hopper 10, which will be described in detail later, is provided on the outer periphery of the cylindrical casing 2 so as to face the cutting waste input port 2i, and at the same time, it faces the cutting waste discharge port 2o. Is attached.

On the other hand, the screw 3 housed in the cylindrical casing 2 includes a drive pipe 3A and the drive pipe 3
In order to convey the cutting debris from the cutting debris inlet 2i to the cutting debris outlet 2o by the drive motor 5 installed in the tubular casing 2, the screw blade 3B is fixed to the outer periphery of A. It is driven to rotate.

Further, as shown in FIG. 7, the screw blade 3B of the screw 3 retains the cutting waste in the upstream region of the cutting waste carry-out port 2o so that the cutting oil contained in the cutting waste flows down to the downstream side. The side end portion 3e is formed so as to be located in the upstream region of the cutting waste carry-out port 2o.

Further, as shown in FIGS. 7 and 8, a plate 3C is attached to the end of the screw 3 on the downstream side of the drive pipe 3A so as to prevent chips from being pressed against the drive motor 5 side. The plate 3C is provided with bolts 3D, 3D for releasing cutting chips.

As shown in FIG. 1, the screw conveyor 1
Is fixedly installed in a tank T for storing clean cutting oil Oc via brackets Ta and Tb, and the cutting waste discharge port Mo of the machine tool M faces the upper side of the hopper 10. Below the discharge duct 4, a chip conveyor H
Is installed.

When the screw conveyor 1 is in operation, the cutting scraps containing the cutting oil discharged from the machine tool M and put into the hopper 10 enter the inside of the cylindrical casing 2 based on the rotating operation of the screw 3. 2i to cutting waste outlet 2
It is conveyed toward the o and then sent to the chip conveyor H via the discharge duct 4.

As shown in FIGS. 3 to 6, the hopper 10 provided in the tubular casing 2 has side plates 11F and 11R fixedly provided in the tubular casing 2 with the cutting waste inlet 2i interposed therebetween.
And the side plates 11F and 11 along the edge of the cutting waste input port 2i.
It is provided with a back plate 12 and a bottom plate 13 extending between R and the bottom plate.

Further, the hopper 10 is provided with a chute 14 facing the back plate 12 and side plates 11F and 11R.
And a partition plate 15 extending between the side plates 11F and 11
And a top cover 16 that covers an upper region between R and R, and the chute 14 and the partition plate 15 define a charging unit 10A into which cutting chips containing cutting oil are charged, and a pair of Side plates 11F, 11R, back plate 12,
Also, the partition plate 15 defines a filter unit 10B for separating the cutting chips and the cutting oil flowing from the charging unit 10A.

Here, as is apparent from FIG. 5, the hopper 1
In order to accommodate a large amount of cutting waste and cutting oil, 0 is provided with a chute 14 overhanging, and the cutting waste input port 2i of the cylindrical casing 2 is provided with the cutting waste and the cutting oil which are put into the hopper 10. However, it is formed so as to be deviated in the rotation direction of the screw 3 (direction of arrow r) so that it can easily enter the inside of the tubular casing 2.

Inside the filter section 10B of the hopper 10, a drum filter 20 is accommodated and installed so as to extend in the axial direction of the cylindrical casing 2 and to be located above the cutting dust inlet 2i. .

The drum filter 20 has an opening 21a,
A cylindrical drum 21 having 21a is provided, and a punching metal (separated from a cutting metal and a cutting oil) made of a thin metal plate having a large number of small holes uniformly formed on the outer circumference of the drum 21. The filter member) 22 is attached so as to cover the openings 21a, 21a.

Note that any member other than the punching metal, such as a wire mesh, may be used as the filtering member as long as it can effectively separate the cutting waste and the cutting oil.

Both ends of the drum 21 of the drum filter 20 are provided at the side plate 11F and the side plate 1 of the hopper 10.
The bearing guides 23F and 23R are attached to both ends of the drum 21, respectively, and these bearing guides 23F and 23R are loosely fitted to the side plates 11F and 11R of the hopper 10.

On the other hand, the side plates 11F and 11R include
Ball bearings 17, 17 acting as rollers
Are respectively supported by three, and these ball bearings 17, 17 ... Are ring guides 23F, 23R.
The drum filter 20 is supported rotatably about an axis extending in the axial direction of the tubular casing 2 by supporting the.

Here, the bearing guides 23F, 23R
Is attached to the drum 21 with a set screw so that fine adjustment (centering) is possible, and the side plates 11F and 11R are further attached.
The portions through which the bearing guides 23F and 23R penetrate are formed by machined surfaces, so that the side plate 1
It is easy to manage the clearance between the 1F and the bearing guide 23F and between the side plate 11R and the bearing guide 23R.

As a result, since the gap between the side plates 11F, 11R and the bearing guides 23F, 23R can be set as small as possible, when cutting chips and cutting oil are introduced into the hopper 10 as will be described later, cutting is performed. Scrap does not easily leak to the outside of the side plates 11F, 11R, and the side plates 11F, 11R
It is possible to prevent inconvenience that cutting chips are caught in the gap between the R and the bearing guides 23F and 23R.

On the other hand, the drive pipe 3 in the screw 3
A drive sprocket 31 attached to the end of A, a driven sprocket 32 attached to the bearing guide 23F of the drum filter 20, and a drive sprocket 3
1 and the power transmission means 30 composed of the transmission chain 33 wound around the driven sprocket 32 causes the drum filter 20 to rotate the screw 3 based on the rotation operation of the screw 3, in other words, the drive motor 5 that rotates the screw 3. Is driven and rotated in the same direction as the rotation direction of the screw 3 (arrow R direction).

Here, one side plate 1 of the hopper 10
1F is provided with a side cover 19F which covers one end opening of the drum filter 10 and accommodates the power transmission means 30, and is opened only at the lower side, and is attached to the other side plate 11R of the hopper 10. Is attached with a side cover 19R that covers the other end opening of the drum filter 10 and is open only at the lower side.

The hopper 10 has a drum filter 2
A cleaning nozzle 40 for removing the cutting dust from 0 is installed so as to penetrate the inside of the drum filter 20, that is, the drum 21 of the drum filter 20 and extend along the axis of the drum filter 20.

This cleaning nozzle 40 is provided with a large number of upward facing fluids (cutting oil) for spraying a cleaning fluid (cutting oil) from the inner side to the outer side of the punching metal 22 as shown by the arrow P. While having the nozzle holes 40a, 40a ...
In the outer region of the drum filter 20 in the hopper 10,
A cover plate 18 facing the cleaning nozzle 40 is installed.

When the screw conveyor 1 having the above-described structure starts to operate, the screw 3 and the drum filter 20 are rotationally driven by the drive motor 5, while the cutting waste generated in the machine tool M is accompanied by a large amount of cutting oil. It is thrown into the chute 14 in the hopper 10 from the cutting waste discharge port Mo of the machine tool M.

Here, the cutting chips containing a large amount of cutting oil discharged from the machine tool M, in other words, the mixture G of cutting oil and cutting chips, is successively introduced into the hopper 10 as shown in FIG. Large and heavy cutting debris in the mixture G sinks below the hopper 10 as shown by the chain line arrow J,
After entering the inside of the cylindrical casing 2 from the cutting waste input port 2i, it is conveyed toward the cutting waste discharge port 2o based on the rotation operation of the screw 3.

On the other hand, the small and light cutting dust floating above the mixture G is filtered by the punching metal 22 of the drum filter 20 provided in the filtering section 10B of the hopper 10, and the drum 21 passes through the punching metal 22.
The clean cutting oil Oc flowing into the tank 21 is sent into the tank T from the drum 21 through the side covers 19F and 19R of the hopper 10.

Further, the fine cutting debris attached to the outer surface side of the punching metal 22 in the drum filter 20 is generated by the cutting oil sprayed from the cleaning nozzle 40 when the drum filter 20 is positioned above the cleaning nozzle 40 by the rotation of the drum filter 20. , Peeled outward from the punching metal 22,
It falls along the cover plate 18 and the back plate 12 as shown by the chain line arrow K.

Here, the above-mentioned cleaning nozzle 40 is supplied with cutting oil branched from a cutting oil pump (not shown) in the machine tool M, and the momentum of the cutting oil injected from the cleaning nozzle 40. For the purpose of increasing instantaneously, from the middle of the pipe connected to the cleaning nozzle 40,
It is configured to supply air by timer management.

As described above, in the screw conveyor 1 according to the present invention, the drum filter 20 is provided above the opening 2A in the cylindrical casing 2, so that the punching metal 22 of the drum filter 20 is provided in the hopper 10. Of the mixture of input cutting oil and cutting chips,
In addition to contact with small and light cutting chips other than large and heavy cutting chips that sink below the hopper 10, the cleaning nozzle 40 provided inside the drum filter 20 removes cutting chips attached to the punching metal 22. , Is efficiently removed to the outside of the punching metal 22.

That is, according to the screw conveyor 1 of the present invention, the amount of cutting wastes to be filtered in the punching metal 22 is small, and the punching metal 2 is used.
Since the cutting scraps are efficiently removed from 2, the punching metal 22 will not be clogged due to the adhesion of the cutting scraps, and thus the occurrence of overflow due to the clogging of the punching metal 22 can be prevented. Is possible.

Further, in the screw conveyor 1 according to the present invention, the drum filter 20 is provided at the opening of the cylindrical casing 2 while the conventional cutting waste conveying device has the drum filter arranged coaxially with the cylindrical casing. By arranging the upper region of 2A, in other words, the drum filter 20 away from the tubular casing 2, it is possible to reliably prevent malfunctions caused by cutting debris being caught between the tubular casing and the drum filter. You can

Further, in the above-mentioned screw conveyor 1, the power transmission means 30 for transmitting the rotation operation of the screw 3 to the drum filter 20 is provided, and the screw 3 and the drum filter 20 are rotated by one drive motor 5. Therefore, the manufacturing cost related to the screw conveyor 1 is reduced.

[0036]

As described above in detail, the cutting waste transporting apparatus according to the present invention separates a charging section into which cutting waste containing cutting oil is charged and a cutting waste and cutting oil flowing from the charging section. A hopper having a filtering portion for doing so is provided facing the cutting waste input port in the tubular casing, and further the filtering portion of the hopper is provided with a filtering member for separating cutting waste and cutting oil on the outer periphery, Also, it is located above the cutting waste input port of the tubular casing and is rotatably installed around the axis. The filtering waste separates the cutting waste from the cutting oil, and the separated cutting oil is discharged to the outside of the hopper. There is a drum filter. As described above, the drum filter is provided above the opening of the cylindrical casing to reduce the amount of cutting debris that comes into contact with the filter member of the drum filter, and the washing nozzle is provided inside the drum filter to filter the drum. It is possible to efficiently remove the cutting debris attached to the member, and by disposing the drum filter away from the tubular casing, it is possible to prevent the cutting debris from being caught between the tubular casing and the drum filter. . Thus, according to the cutting waste carrier of the present invention, the filtering member of the drum filter does not easily become clogged, and the cutting waste may be caught between the tubular casing and the drum filter. Since it does not exist, while preventing the overflow due to the clogging of the filter member and the malfunction due to the biting of cutting chips,
It becomes possible to separate the cutting waste and the cutting oil and to carry the cutting waste and collect the cutting oil.

[Brief description of drawings]

FIG. 1 is an overall side view showing an external appearance of a cutting waste transportation device according to the present invention.

FIG. 2 is a plan view of an essential part showing a cutting waste conveying device according to the present invention.

FIG. 3 is a cross-sectional side view of essential parts showing the periphery of a cutting waste inlet of the cutting waste transport device according to the present invention.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a sectional view taken along line VV in FIG. 3;

6 is a sectional view taken along line VI-VI in FIG.

FIG. 7 is a cross-sectional side view of essential parts showing the periphery of a cutting waste carry-out port of the cutting waste carrier according to the present invention.

8 is a sectional view taken along line VIII-VIII in FIG.

FIG. 9 is an overall side view showing a conventional cutting waste transport device.

FIG. 10 is a cross-sectional side view of essential parts showing a conventional cutting waste transport device.

FIG. 11 is a cross-sectional end view of essential parts showing a conventional cutting waste transport device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Screw conveyor (cutting waste conveying device), 2 ... Cylindrical casing, 2i ... Cutting waste input port, 2o ... Cutting waste discharge port, 3 ... Screw, 10 ... Hopper, 10A ... Input part, 10B ... Filtration part, 20 ... drum filter, 21 ... drum, 22 ... punching metal (filter member), 30 ... power transmission means, 40 ... cleaning nozzle.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B01D 24/38 33/70

Claims (3)

[Claims] 1. A cylinder which is installed in a manner inclined with respect to the horizontal direction and has a cutting waste inlet on the outer periphery of the lower end and an outlet for cutting waste on the outer periphery of the upper end. -Shaped casing, a screw that is housed and installed inside the cylindrical casing, and that conveys cutting debris containing cutting oil that is input from the cutting debris inlet toward the cutting debris outlet based on the rotation operation, and A hopper provided facing the cutting waste input port, into which cutting waste containing cutting oil is input, and a hopper having a filtering unit for separating the cutting waste and the cutting oil that have flowed in from this input portion; In the filtering part of the hopper, which is located above the cutting waste charging port in the cylindrical casing and is rotatably installed around the axis, and is provided with a filtering member for separating cutting waste and cutting oil on the outer periphery, For the filter member Therefore, a cutting dust transporting device comprising: a drum filter that separates cutting dust and cutting oil and discharges the separated cutting oil to the outside of the hopper. 2. A cleaning nozzle provided inside the drum filter, for injecting a cleaning fluid toward the outer region of the filtering member to remove cutting debris. The cutting waste conveyance device according to 1. 3. The power transmission means for transmitting the rotational movement of the screw to the drum filter is provided, and the drum filter is rotated by a drive source of the screw. Cutting waste carrier.