JP3521642B2 - Cutting waste transporter - Google Patents

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 conveying cutting waste containing cutting oil discharged from a machine tool or the like.

[0002]

Cutting chips discharged from various machine tools contain a large amount of cutting oil supplied during machining. By separating the cutting chips and the cutting oil, the cutting oil is recovered. Reuse has been conventionally performed. The applicant of the present application, in the previous application (Japanese Patent Application No. 8-14274), as shown in FIGS. 14 to 16, has a cylindrical casing C having an inlet Ci and an outlet Co, and the inside of the cylindrical casing C. A rotatable drum filter F having a screw S that is housed and installed to convey cutting waste, and further provided with a hopper H that faces the input port Ci of the cylindrical casing C and that has a filter member f on the outer periphery. , Hopper H
A cutting waste transporting device A, which is arranged inside the machine, has been proposed. According to this cutting waste transport apparatus A, when cutting wastes containing cutting oil are fed into the hopper H, the cutting oil separated via the filtering member f of the drum filter F is stored in the tank T, and The cutting waste that has entered the cylindrical casing C from the input port Ci is conveyed to the discharge port Co by the operation of the screw S, and is dumped into the storage box B via the discharge port Co.

[0003]

By the way, in the above-described cutting waste transporting apparatus A, as shown in FIG. 14, the cylindrical casing C is housed in the tank T at the end where the charging port Ci is provided. It is installed in an inclined manner. Here, in order to effectively use the filtering member f of the drum filter F to secure the maximum flow rate, the end portion of the cylindrical casing C on the side where the charging port Ci is provided is positioned deeply with respect to the tank T. In that case, there is a disadvantage that the inclination angle of the cylindrical casing C becomes large and the ground clearance at the end portion on the side where the discharge port Co is provided becomes high. Further, when the drum filter F is extended in order to increase the effective area of the filtering member f, the total length of the cylindrical casing C increases and the discharge port Co increases.
The ground clearance at the end on the side where the is provided is also increased, which causes an inconvenience of increasing the installation space. The present invention has been made in view of the above circumstances, and an object thereof is to provide a cutting waste transporting device capable of achieving the smallest possible size while ensuring a maximum flow rate.

[0004]

In order to achieve the above object, a cutting waste carrier according to the present invention comprises a filter unit and a drive unit, and a joint unit connecting both. The filter unit includes a cylindrical casing that has a cutting waste input port and is horizontally arranged, a screw housed and installed in the cylindrical casing, and a hopper provided in the cylindrical casing facing the cutting waste input port. And a drum filter having a filter member on the outer periphery for separating cutting chips and cutting oil. The drive unit is composed of a cylindrical casing having a cutting waste discharge port and installed at an angle to a predetermined angle, a screw housed and installed in the cylindrical casing, and a motor for rotationally driving the screw. ing. Then, the filter unit and the drive unit are connected to each other at a predetermined angle by a joint unit including a pipe joint and a universal joint between the tubular casing and the screw of the filter unit and the tubular casing and the screw of the drive unit. Further, the drum filter of the filter unit is installed above the cutting dust inlet inside the hopper so as to be rotatable about a horizontal axis parallel to the cylindrical casing of the filter unit, and the power of the motor of the drive unit is set. It is formed so that it can be driven and rotated.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings illustrating one embodiment. As is clear from FIG. 1, the cutting waste transporting apparatus 1 according to the present invention includes a filter unit 1F and a drive unit 1D, and a joint unit 1J that connects them, and arranges the filter unit 1F horizontally and drives the drive unit. The 1D is installed in the tank 100 in a state of being inclined by 45 °.

As shown in FIGS. 2 to 6, the filter unit 1F includes a tubular casing 10 and a screw 15 housed in the tubular casing 10, and the tubular casing 10 is horizontally oriented. As described above, it is fixedly installed on the bottom of the tank 100 (see FIG. 1).

[0007] Further, on the peripheral wall of the tubular casing 10, there is formed a cutting dust inlet 10i which opens upward, and at the discharge side end portion (right end in Fig. 2) of the tubular casing 10, a rectangular shape is formed. The flange plate 10A that exhibits is fixed.

On the other hand, the screw 15 is a drive pipe 15
A has a blade 15B, a joint pin 15J is fixedly attached to one end of the drive pipe 15A, and the screw 15 is attached to the end plate 10B of the tubular casing 10 via the other end of the drive pipe 15A. It is rotatably supported.

The above-mentioned tubular casing 10 is provided with a hopper 20 facing the cutting waste input port 10i. The hopper 20 is fixed to the tubular casing 10 with the cutting waste input port 10i interposed therebetween. End plates 21 and 22 and side plates 23L and 23R provided between the end plates 21 and 22 along the edge of the cutting waste input port 10i.

Inside the hopper 20, a drum filter 30 is housed and installed in a region above the cutting waste inlet 10i and extending horizontally along the axial direction of the cylindrical casing 10. ing.

The drum filter 30 includes a pair of annular support drums (rotary support flanges) 31 and 32.
A thin metal plate in which a large number of small holes are evenly formed, that is, a punching metal 33 as a filtering member for separating cutting scraps and cutting oil is provided, and the punching metal 33 is formed by butt welding the end faces. Is formed into a cylindrical shape, and the support drums 31 and 32 described above are fixedly provided at both ends thereof.

In the embodiment, the diameter is set to a thin plate made of stainless steel.
Although a punching metal formed by forming 0.5 mm round holes with an opening ratio of 23% is used as a filtering member, any punching metal other than the above punching metal may be used as long as it can effectively separate cutting chips and cutting oil. It is also possible to employ any member such as a wire mesh as the filtering member.

The drum filter 30 is freely rotatable about the axis extending in the axial direction of the tubular casing 10 by loosely fitting the support drums 31 and 32 at both ends to the end plates 21 and 22 of the hopper 20. Is supported by.

Further, a driven sprocket 35 is fixed to the end plate 34 fixed to the support drum 32, and a drive sprocket 36 is fixed to the drive pipe 15A of the screw 15. Sprocket 3
The drum filter 30 is driven and rotated by the power transmission means composed of the motors 5, 36 and the transmission chain 37 based on the rotation operation of the screw 15, in other words, by the power of the motor 60 of the drive unit 1D described later.

Support drum 3 for the drum filter 30
1, there are bite-prevention grooves 31A, 31A ... That are exposed to the loose fitting portion with the end plate 21 of the hopper 20 and are released to the outside.
It is formed at a plurality of locations (eight locations in the embodiment), and the support drum 32 and the end plate 34 of the drum filter 30 face the loose fitting portion of the end plate 22 of the hopper 20 and are released outward. The entrapment prevention grooves 32A, 32A ... Are formed at a plurality of locations (eight locations in the embodiment).

Further, the hopper 20 is provided with an inner peripheral side scraper 40I and an outer peripheral side scraper 40O for removing cutting chips from the drum filter 30,
Both scrapers 40I and 40O are formed from a thin plate of stainless steel.

The inner peripheral scraper 40i is provided with a bracket 42 which is installed on the end plates 21 and 22 of the hopper 20 so as to pass through the inside of the drum filter 30 via the bracket bars 41 and 41, and the edge of the punching metal 33. It is attached so as to be in sliding contact with the inner peripheral surface of the.

On the other hand, the outer peripheral scraper 40O has an outer region relative to the drum filter 30.
End plate 21 of the hopper 20 in a manner extending along the axis of 0,
It is attached to a bracket 43 erected on 22 in such a manner that the edge portion is brought into sliding contact with the outer peripheral surface of the punching metal 33.

The inner side scraper 40i and the outer side scraper 40O are both movably attached to the bracket 42 and the bracket 43 so that the contact with the punching metal 33 can be adjusted.

Further, a cover 24A opened downward is attached to the upper part of the end plate 21 of the hopper 20, while the end plate 22 of the hopper 20 includes the above-mentioned sprockets 35 and 36 and the transmission chain 37. A side cover 24B which accommodates the power transmission means and which is opened downward is attached, and the end plate 1 of the tubular casing 10 is attached.
A base frame 10F for installation is fixed to 0B.

As shown in FIGS. 8 to 10, the drive unit 1D includes a tubular casing 50 and a screw 55 housed inside the tubular casing 50, and the tubular casing 50 has a predetermined angle (embodiment). Tank 45 (see FIG. 1) as described above in a posture inclined at 45 °).
It is installed in.

Further, the cylindrical casing 50 is provided with a cutting waste discharge port 50o, and a discharge duct 51 is attached so as to face the cutting waste discharge port 50o, and the cylindrical casing 50 is further discharged. A flange plate 50A having a rectangular shape is fixed to the side end (the left end in FIG. 8).

On the other hand, the screw 55 is the drive pipe 55.
A drive pipe 55A has a joint pin 55J fixed to one end of the drive pipe 55A. The screw 55 is driven by a motor 60 installed in the tubular casing 50 into the tubular casing 50. It is rotationally driven to convey the cutting waste from the end portion toward the cutting waste discharge port 50o.

Here, the above-mentioned filter unit 1F
The outer diameter of the blade 15B in the screw 15 of
While the blade 55B in the screw 55 of the drive unit 1D is 80 mm,
It has an outer diameter of 100 mm, which is larger than B.

Further, the introduction side end portion 55 of the blade 55B
The edge 55e at h is formed in such a manner that the outer diameter dimension of the plate 55B becomes smaller as it goes to the tip of the screw 15, that is, toward the left in FIG. 8, like a tapping screw or a wood screw. .

As shown in FIGS. 11 to 13, the joint unit 1J has a tubular casing 70 as a pipe joint and a universal joint 75. The tubular casing 70 is a tubular casing 50 in the drive unit 1D. Is bent and formed corresponding to a predetermined inclination angle (45 °).

A flange plate 70F having a rectangular shape is fixedly provided at the end portion (left end in FIG. 11) of the tubular casing 70, while the tubular casing 70 is provided.
A rectangular flange plate 70D is fixed to the discharge side end portion (right end in FIG. 11).

Flange plate 7 of tubular casing 70
0F is the flange plate 1 of the filter unit 1F
It is connected (bolt-fastened) with OA and also has a cylindrical casing 7
No. 0 flange plate 70D is drive unit 1D
Is connected (bolt-fastened) to the flange plate 50A of the drive unit 1D, whereby the cylindrical casing 10 of the drive unit 1D is connected to the cylindrical casing 10 of the filter unit 1F in a posture inclined at a predetermined angle. Become.

On the other hand, the universal joint 75 is respectively coupled (pin-coupled) to the joint pin 15J of the screw 15 in the filter unit 1F and the joint pin 55J of the screw 55 in the drive unit 1D, whereby the screw 15 of the filter unit 1F is connected. , Screw 5 of drive unit 1D
5, the screw 15 of the filter unit 1F is driven and rotated by the operation of the screw 55 by the motor 60 of the drive unit 1D.

When the cutting waste conveying apparatus 1 having the above-described structure starts to operate, the screw 55 is rotationally driven by the motor 60 of the drive unit 1D, and the screw 15 of the filter unit 1F and the drum filter 30 are connected via the joint unit 1J. Is driven to rotate,
Cutting waste generated from a machine tool (not shown) is thrown into the hopper 20 of the filter unit 1F together with a large amount of cutting oil.

From the cutting scraps thrown into the hopper 20, the cutting oil is filtered through the punching metal 33 of the drum filter 30, and the clean cutting oil passing through the punching metal 33 is used as the supporting drum 31 of the drum filter 30.
Through 32, through the covers 24A, 24B of the hopper 20 and into the tank 100.

On the other hand, the cutting waste that has entered the inside of the cylindrical casing 10 together with the cutting oil from the cutting waste input port 10i is
The screw 15 is fed into the tubular casing 70 of the joint unit 1J by the rotating operation of the screw 15, and then the rotational movement of the screw 55 in the drive unit 1D conveys the inside of the tubular casing 50 toward the cutting waste discharge port 50o. From the cutting waste discharge port 50o through the discharge duct 51, it is thrown into a storage box (not shown) or a chip conveyor.

Here, in the above-described cutting waste carrier 1,
Since the filter unit 1F is arranged horizontally and the drive unit 1D is arranged so as to be inclined, the filter unit 1F is arranged in order to increase the effective area of the punching metal 33 in the drum filter 30 and secure the maximum flow rate. Even if the filter unit 1F is installed on the bottom of the tank 100, the inconvenience that the overall height of the drive unit 1D increases due to the installation mode of the filter unit 1F does not occur.

Further, since the drum filter 30 of the filter unit 1F is arranged horizontally, by increasing the total length of the drum filter 30, the entire length of the cutting waste conveying device 1 is not increased, and specifically, The processing capacity can be increased without increasing the overall height of the drive unit 1D and the horizontal distance from the tank 100 to the cutting waste discharge port 50o of the drive unit 1D. Therefore, in the cutting waste transporting apparatus 1 having the above-described configuration, It is possible to achieve the smallest possible size while ensuring the maximum flow rate.

Further, in the above-mentioned embodiment, the drive unit 1D is installed at the inclination angle of 45 °, but by using the joint unit 1J having the cylindrical casing bent at an arbitrary angle, The drive unit 1D can be installed at various inclination angles set arbitrarily such as 35 ° or 60 °, and by combining the filter unit 1F of various specifications, the joint unit 1J, and the drive unit 1D, cutting oil treatment can be performed. It is possible to appropriately set the flow rate and the shaving discharge position according to the situation.

Further, in the above-described cutting waste conveying apparatus 1, the screw 15 and the drum filter 30 in the filter unit 1F are arranged as close as possible to each other, whereby the overall height of the filter unit 1F can be suppressed and the drum filter 1F can be suppressed. Since the cutting waste is directly fed from above the filter 30, the entire width of the filter unit 1F can be suppressed.

Further, in the cutting waste transporting apparatus 1 having the above-mentioned structure, the fine cutting wastes adhering to the punching metal 33 of the drum filter 30 are removed by the inner peripheral side scraper 40I and the outer peripheral side scraper 40O which are in sliding contact with the punching metal 33. Since it is configured to do so, cutting oil and air for backwashing are not required, and it is possible to achieve energy saving with a simple structure.

Further, the support drums 31 and 32 of the drum filter 30 are respectively provided with a plurality of bite prevention grooves 31A.
By forming parts 32A and 32A, the cutting chips that have entered the rotating parts of the hopper 20 and the drum filter 30 are immediately discharged, so that the malfunction of the drum filter 30 due to the biting of the cutting chips can be prevented.

Further, in the above-described cutting waste conveying apparatus 1, since the introduction side end of the plate 55B of the screw 55 of the drive unit 1D is formed in such a manner that the outer diameter of the plate 55B becomes smaller toward the tip, the joint is formed. The cutting waste sent into the inside of the tubular casing 70 of the unit 1J is smoothly taken in by the screw 55, and the transport efficiency of the cutting waste is improved.

Further, the conveyance resistance of the cutting waste in the cutting waste conveying device 1 is greater than that of the filter unit 1F which is horizontally installed, and the drive unit 1D which is installed obliquely.
Is larger, but screw 5 of drive unit 1D
5, the outer diameter of the blade 55B of the filter unit 1F is set larger than the outer diameter of the blade 15B of the screw 15 of the filter unit 1F.
It enables smooth transport of cutting waste from 0 to the discharge duct 51.

[0041]

As described above in detail, the cutting waste conveying apparatus according to the present invention includes a filter unit having a drum filter, a drive unit having a motor, and a joint unit for connecting the two. While the unit is installed horizontally, the drive unit is installed so as to be inclined.Therefore, in order to increase the effective area of the filter member in the drum filter and ensure the maximum flow rate, the filter unit is installed at the bottom of the tank. Also,
There is no inconvenience that the overall height of the drive unit increases due to the installation mode of the filter unit. Further, in the cutting waste transporting apparatus according to the present invention, since the drum filter is arranged horizontally, by increasing the total length of the drum filter, the overall height of the drive unit and from the tank to the cutting waste discharge port of the drive unit are increased. The processing capacity can be increased without increasing the horizontal distance, so that it is possible to achieve the smallest possible size while ensuring the maximum flow rate. Further, in the cutting waste conveying device according to the present invention, the drum filter is formed so as to be driven and rotated by the power of the motor of the drive unit. The drum filter can be installed directly above the cutting waste input port inside the hopper in order to feed the cutting waste into the cutting waste input port. It is possible to achieve miniaturization as much as possible.

[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 a side sectional view showing a filter unit of a cutting waste transportation device according to the present invention.

FIG. 3 is an overall plan view showing a filter unit.

FIG. 4 is a connection-side end view showing a filter unit.

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

FIG. 6 is an enlarged plan view of a main part of a drum filter in the filter unit.

FIG. 7 is an enlarged plan view of a main part of a drum filter in the filter unit.

FIG. 8 is a side sectional view showing a drive unit of the cutting waste transportation device according to the present invention.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a connection-side end view showing a drive unit.

FIG. 11 is a side sectional view showing a joint unit of the cutting waste transportation device according to the present invention.

12 is a sectional view taken along line XII-XII in FIG.

13 is a sectional view taken along line XIII-XIII in FIG.

FIG. 14 is an overall side view showing a conventional cutting waste transport device.

FIG. 15 is a side sectional view of an essential part showing a conventional cutting waste transport device.

16 is a sectional view taken along line XVI-XVI in FIG.

[Explanation of symbols]

1 ... Cutting waste carrier 1F ... filter unit, 10 ... Cylindrical casing, 10i ... Cutting waste input port, 15 ... screw, 20 ... Hopper, 30 ... drum filter, 31, 32 ... Support drum (rotary support flange), 31A, 32A ... bite prevention groove, 33 ... Punching metal (filter member), 40I ... inner side scraper, 40O ... Scraper on the outer circumference, 1D ... Drive unit, 50 ... Cylindrical casing, 50o ... Cutting waste outlet, 55 ... screw, 55B ... Blade, 60 ... motor, 1J ... Joint unit, 70 ... Cylindrical casing (pipe fitting), 75 ... Universal joint.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-60-183416 (JP, A) JP-A-7-223143 (JP, A) JP-A-9-201740 (JP, A) Actual development Sho-62- 156314 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) B23Q 11/00

Claims (3)

(57) [Claims] 1. A cylindrical casing having a cutting debris inlet and a cutting debris outlet, and a screw housed and installed inside the cylindrical casing, and containing cutting oil based on the rotating operation of the screw. In a cutting waste conveying device configured to convey the cutting waste from the cutting waste input port of the cylindrical casing to the cutting waste discharge port, a cylindrical casing having a cutting waste input port and horizontally arranged, A screw housed and installed in the tubular casing, a hopper provided in the tubular casing facing the cutting dust inlet, and a drum filter provided with a filter member for separating cutting dust and cutting oil on the outer periphery, Consisting of a filter unit, a cylindrical casing that has a chip discharge port and is installed at an angle to a predetermined angle, a screw housed and installed in this cylindrical casing, and this screw. A drive unit including a motor for rotationally driving the Liu, a tubular casing and a screw of the filter unit, and a tubular casing and a screw of the drive unit by a joint unit including a pipe joint and a universal joint to the predetermined angle. , The drum filter of the filter unit, above the cutting waste input port inside the hopper, is installed rotatably about a horizontal axis parallel to the cylindrical casing of this filter unit, the motor of the drive unit. A cutting waste conveying device characterized by being formed so that it can be driven and rotated by power. 2. The blade of the drive unit on the side where the blade is introduced is formed into a wood screw shape whose outer diameter becomes smaller toward the tip as compared with the tubular casing. Cutting waste carrier. 3. The hopper of the filter unit is provided with an inner peripheral side scraper that is in sliding contact with the inner peripheral surface of the filtering member in the drum filter, and an outer peripheral side scraper that is in sliding contact with the outer peripheral surface of the filtering member. Item 1. The cutting waste transport device according to Item 1.