JP3228029B2 - Cutting waste transport device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Cutting chips discharged from various machine tools include a large amount of cutting oil supplied during machining, and this cutting oil has been conventionally reused.
For example, adopting a screw conveyor as a transport means,
A configuration is provided in which the cutting oil is discharged through a small hole provided at the bottom of the outer pipe in the screw conveyor, so that the operation of transporting the cutting chips and the operation of collecting the cutting oil are simultaneously performed. However, in the above configuration, it is difficult to set the diameter of the small hole in the screw conveyor, and it is difficult to reliably and sufficiently separate the cutting chips and the cutting oil. Accordingly, the applicant of the present application has filed an earlier application (Japanese Patent Application No. 5-27225).
In 3), an opening is provided in the upper half of the peripheral wall in the downstream area of the cutting waste inlet in the outer pipe of the screw conveyor installed in a manner inclined in the vertical direction, and this opening is punched as a filtering member. The present invention proposes a cutting waste transport device in which a brush unit provided with a brush that slides on the entire inner peripheral surface of the punching metal is provided on a screw of a screw conveyor while being covered with metal. According to the above configuration, the cutting oil is removed from the cutting waste put into the screw conveyor through the opening provided in the outer pipe and the punching metal, and the brush unit is activated based on the operation of the screw conveyor. By rotating together with the screw, clogging of the punching metal in the screw conveyor is prevented.

[0003]

By the way, in the above-mentioned cutting chip conveying device, when relatively large cutting chips enter between the screw and the punching metal during the operation thereof, the punching metal made of a thin plate is cut by the cutting chip. It is easily deformed by the resistance of the debris. When the punching metal is deformed, the contact between the inner peripheral surface of the punching metal and the brush is weak or does not contact the brush at all, and it is difficult to remove the clogging of the punching metal. There was a problem that the separation could not be sufficiently performed. In view of the above situation, it is an object of the present invention to provide a cutting chip conveying device capable of carrying out cutting chip conveyance and cutting oil collection while sufficiently and surely separating cutting chips and cutting oil. And

[0004]

According to another aspect of the present invention, there is provided a cutting waste conveying device which is installed in a vertically inclined manner and has an opening in an upper half of a peripheral wall in a downstream region of a cutting waste inlet, and A screw that is housed and installed inside the outer pipe and conveys cuttings by a rotating operation, is further rotatably fitted to the outer pipe in a manner to cover the opening, and is rotatably fitted to the opening at the time of rotation. A drum having a facing window and a filtering member for covering the window on the outer periphery thereof is provided, and cutting chips are cut by the cooperative action of the edge of the window and the edge of the opening based on the rotation of the drum. It is configured to do.

[0005]

According to the above-described structure, a large amount of the cutting chips contained in the cutting chips is removed from the cutting chips supplied to the outer pipe via the opening of the outer pipe and the window of the drum and the filtering member covering the window. Of the cutting oil is separated and removed. In addition, since cutting chips that have entered the window of the drum through the opening of the outer pipe are cut based on the rotation of the drum, the filtering member provided on the drum may be inadvertently damaged. Absent.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments. As shown in FIGS. 1 and 2, a screw conveyor 1 as a cutting waste conveying device according to the present invention.
Is a cutting oil tank 3 provided adjacent to the machine tool 2.
The screw conveyor 1 is supported so as to face the chip discharge port 2a of the machine tool 2.
Is provided with an outer pipe 10 and a screw 20 housed and installed in the outer pipe 10.

The outer pipe 10 is installed so as to be inclined in the vertical direction. A cutting chip receiving tray 11 is provided at a lower end of the outer pipe 10, and a cutting chip discharge port is provided at an upper end side. While the screw 12 is provided, the screw 20 is composed of a driving pipe 21 and a screw blade 22 fixed to the outer periphery of the driving pipe 21, and is rotated by a driving motor 23 directly connected to the driving pipe 21. .

A cutting chip guide 2A extending from a cutting chip outlet 2a of the machine tool 2 is fitted into a cutting chip receiving tray 11 of the outer pipe 10, and a lower portion of the cutting chip discharge port 12 is provided. A cutting chip storage box 4 for storing cutting chips dumped from the cutting chip discharge port 12 is disposed in the area, and the cutting chips discharged from the machine tool 2 and thrown into the cutting chip receiving tray 11 are disposed. Is conveyed to the left in FIG. 1 by the rotation of the screw 20, and the chip discharge port 1
2 is dumped into the cutting waste storage box 4.

As shown in FIG. 4 and FIG. 5, the upper half of the peripheral wall 10a of the outer pipe 10 of the screw conveyor 1 is opened in the downstream area (left side in FIG. 4) with respect to the cutting waste inlet 11. An opening 13 is formed, and the opening 13 is constituted by three openings 13A, 13B, and 13C partitioned by a reinforcing rib portion.
As shown in FIG. 5, the central angle α1 of the openings 13A and 13C is set to about 45 °, the central angle α2 of the opening 13B is set to about 90 °, and the central angle α of the entire opening 13 is set to about 210 °. ° is set.

A drum 30 is rotatably fitted to the outer pipe 10 of the screw conveyor 1 so as to cover the opening 13, and a peripheral wall 30 a of the drum 30 is provided.
Are formed with windows 31A, 31B, 31C facing the opening 13 of the outer pipe 10 during rotation. In addition,
As shown in FIG. 5, the windows 31A, 31B, and 31C each have a central angle β of about 90 ° and are arranged and formed so as to maintain the same central angle (120 °).

On the outer periphery of the drum 30, the windows 31 are provided.
A punching metal 32 is attached as a filtering member made of a thin metal plate having a large number of small holes formed therein so as to cover A, 31B and 31C. It should be noted that any material other than the above-described punching metal, for example, a wire mesh or the like can be used as the filtering member as long as it can effectively separate cutting chips and cutting oil.

As shown in FIGS. 3 and 4, a driven sprocket 34 loosely fitted to the outer pipe 10 is mounted on a flange 33A provided at one end (left end in the drawing) of the drum 30. Are mounted by three fastening bolts 35 arranged at a central angle of 120 ° with each other, and a ball bearing 36A as a roller is supported on each of the fastening bolts 35.

The flange 33B provided at the other end (right end in the drawing) of the drum 30 also has
A ball bearing 36B as a roller is supported via three bolts 37 disposed at a central angle of 0 °, and the ball bearings 36A and 36B are fixed to the outer pipe 10. Bearing guide 38A, 3
The drum 30 is rotatably supported with respect to the outer pipe 10 by traveling on 8B.

The diameter of the outer peripheral surface of the outer pipe 10 is 114.5 mm, while the diameter of the inner peripheral face of the drum 30 is 118 mm. A gap t between the drum 30 and the inner peripheral surface of the drum 30 which is rotatably supported with respect to the pipe 10 (see FIG.
) Is set to 1.75mm.

The size of the gap t is set so that when the drum 30 is rotated with respect to the outer pipe 10, cutting chips are effectively cut, as will be described in detail later. It can be set appropriately in consideration of various conditions such as the number of rotations of 30 and the material of the cutting chips to be conveyed.

As shown in FIG. 3, the outer pipe 10 has a pair of brackets 40A, 40B disposed opposite to each other.
However, the drive motor 41 is fixed to the bracket 40 </ b> A so as to sandwich the drum 30.

A transmission chain 43 is wound between the driving sprocket 42 mounted on the driving motor 41 and the driven sprocket 34 mounted on the drum 30. The drum 30 rotates based on the operation.

The pair of brackets 40A and 40A
B, cleaning means 50
Is attached. The nozzle pipe 51 has a plurality of blow nozzles 52, 52... Extending toward the center of the drum 30 while occupying the upper region of the drum 30. Thereafter, a cleaning fluid, specifically, a cutting oil pumped from a cleaning-system supply pump 60B, which will be described later, is sprayed over the entire area of the punching metal 32 attached to the drum 30.

Here, the fluid ejected from the blow nozzles 52 constituting the cleaning means 50 is not limited to the cutting oil described above,
Other fluids that can effectively clean the punching metal 32 attached to the nozzles 0, specifically the blow nozzles 52, 52
The air may be blown out from. In this case, pressurized air is supplied from a factory air source (not shown) to the nozzle pipe 51 constituting the cleaning means 50.

Further, the pair of brackets 40A and 4A
0B, the cover 4 covers the drum 30 and the nozzle pipe 51 in order to prevent the cutting oil from scattering when the cleaning means 50 is in operation and to improve the appearance.
0C is attached.

On the other hand, as shown in FIGS. 1 and 2, a wire netting 3A as a filter is provided inside a cutting oil tank 3 located below the screw conveyor 1 and further provided with the cutting oil. As shown in FIG. 2, a supply pump 60A for processing and a supply pump 60 for cleaning
B is provided.

The supply pump 60A of the processing system pumps the cutting oil stored in the cutting oil tank 3 through a tube 61 toward a processing portion (not shown) of the machine tool 2. On the other hand, the supply pump 60 </ b> B of the cleaning system supplies the cutting oil stored in the cutting oil tank 3 from the tube 62 to the branch pipe 6.
3. Further, while being sprayed from the tube 64 toward the cutting waste receiving tray 11 through the shower pipe 65, the cutting oil is fed to the nozzle pipe 51 of the cleaning means 50 by pressure through the tube 66 extending from the branch pipe 63. ing.

When the screw conveyor 1 having the above-described structure starts operating, the screw 20 in the outer pipe 10 is driven to rotate by the drive motor 23 and the drum 30 loosely fitted to the outer pipe 10 is driven by the drive motor 41. Is driven to rotate.

At this time, the screw 20 rotates in an arrow R1 direction (clockwise) in FIG. 5, while the drum 30 rotates in an arrow R2 direction (counterclockwise) in FIG. That is, the screw 20 and the drum 30 rotate in directions opposite to each other.

On the other hand, the cutting chips generated in the machine tool 2 are discharged together with a large amount of cutting oil from the cutting chip outlet 2a of the machine tool 2 through the cutting chip guide 2A.
0 is thrown into the chip receiving tray 11.

The cutting chips introduced into the outer pipe 10 via the cutting chip receiving tray 11 are moved from the cutting chip inlet 11 into the inside of the outer pipe 10 in FIG. In a left-handed manner, the chips are conveyed obliquely upward toward the chip discharge port 12, and the chip discharge port 1
2 is dumped into the cutting waste storage box 4.

Here, a large amount of cutting oil is contained in the cutting chips introduced into the outer pipe 10 through the cutting chip inlet 11, and the cutting oil is mixed with the cutting chips based on the rotation of the screw 20. When being conveyed and reaching the opening 13 formed in the downstream area of the above-mentioned chip input port 11, the opening 13 and the windows 31A, 31B, 31C of the drum 30 and the drum 3
It is discharged to the outside through the punching metal 32 provided at the position 0.

That is, a large amount of cutting oil discharged together with the cutting chips from the machine tool 1 is removed via the punching metal 32 provided on the drum 30 during the transportation by the screw conveyor 1, and thus the cutting chips are removed. The cutting oil is reliably separated from the cutting oil, and the cutting oil is stored in the cutting oil tank 3, while the cutting chips are discarded in the cutting chip storage box 4.

On the other hand, when the screw conveyor 1 is in operation, as shown in FIG. 6A, the movement of the screw blade 22 rotating in the direction of arrow R1 causes the cutting chips 100 to be removed from the drum through the opening 13A of the outer pipe 10. 30 when it enters the window 31A, the opening 13A
6A and the edge 31Aa of the window 31A of the drum 30 rotating in the direction of the arrow R2, the cutting chips 100 are separated from the cutting chips 100a and 100a as shown in FIG. 100b.

The cutting chips are cut by the outer pipe 10
Not only between the opening 13A of the outer tube 10 and the opening 31A of the drum 30, but also the openings 3A, 13
B, 13C and each window 31A, 3 in the drum 30.
Needless to say, this is also performed between 1B and 31c.

The cutting oil stored in the cutting oil tank 3 is supplied to the processing system supply pump 60A and the cleaning system supply pump 60A which are operated in accordance with the operation of the screw conveyor 1.
B, the processing portion (not shown) of the machine tool 2, the shower pipe 65, and the cleaning means 5 as described above.
0 to the nozzle pipe 51.

The cutting oil fed to the nozzle pipe 51 is supplied to the drum 30 via blow nozzles 52, 52.
Is sprayed onto the punching metal 32 attached to the outer circumference of the outer pipe 10, whereby small cutting chips clogged in the punching metal 32 are blown down into the outer pipe 10.

At this time, the drum 30 is connected to the outer pipe 1
0, the blow nozzles 52, 52
, The entire circumference of the drum 30, that is, the entire area of the punching metal 32 is cleaned.

As described above, according to the screw conveyor 1 as the cutting waste transporting device according to the present invention, since the cutting waste is finely cut based on the rotating operation of the drum 30, the punching metal 32 as the filtering member is formed. The cutting oil can be sufficiently and reliably separated and removed from the cutting chips introduced into the outer pipe 10 without being inadvertently damaged by the large cutting chips.

In the screw conveyor 1 described above, since the cutting chips are finely cut during the transportation, when the cutting chips are dumped into the cutting chip storage box 4, they are stored in a dense state with each other. Significant downsizing is achieved as compared with a conventional chip storage box that stores chips in a large size.

On the other hand, in another embodiment shown in FIGS. 7 and 8, a front cam 71 as a cam member is directly connected to the end of the driving sprocket 42 ', while a guide plate 72 is connected to the stay 44'. A push rod 73 as a shift member is supported via 72 so as to be movable along the axial direction of the drum 30 '.

The proximal end (right end in FIG. 7) of the push rod 73 is loosely fitted in a guide block 74 fixed to the stay 44 ', and is compressed by a compression spring 75 housed in the guide block 74. The tip (the left end in FIG. 7) of the push rod 73 is pressed against the inclined cam surface 71 a of the front cam 71.

Further, two blow nozzles 53, 53 are attached to the push rod 73, and a pin 73a provided at a base end of the push rod 73 is loosely fitted in a guide groove 74a of the guide block 74. Thus, the blow nozzles 53, 53 are positioned so as to face the center of the drum 30 ', and the nozzle shift means 70 is provided by the front cam 71 and the push rod 73 described above.
Is configured.

The structure other than the above-described nozzle shift means 70 is basically the same as the screw conveyor 1 described above, and the elements having the same functions as those of the screw conveyor 1 are shown in FIG. The detailed description will be omitted by appending '(dash) to the reference numeral shown in FIG.

According to the above configuration, the driving sprocket 4
While the drum 30 'is rotated by the rotation of 2', the push rod 73 performs a stroke operation via the front cam 71 based on the rotation of the driving sprocket 42 ', and the blow nozzles 53, 53 are moved by solid lines shown in FIG. By repeatedly moving between the position and the chain line position, the punching metal 32 ′ as a filtering member attached to the drum 30 ′ is formed by the fluid such as cutting oil injected from the blow nozzles 53, 53. The cleaning is effectively performed over the entire length and the entire circumference.

As a means for pressing the push rod 73 against the front cam 71, a dedicated air cylinder may be used instead of the compression spring 75, or the base end of the push rod 73 may be air tight against the guide block 74. It is also possible to use an air spring configured by designing the air spring.

On the other hand, in still another embodiment shown in FIGS. 9 and 10, a front cam 81 as a cam member is directly connected to the end of the drive sprocket 42 ', while the stay 4
A push rod 83 as a shift member is supported on the 4 'via a guide block 82 so as to be movable along the axial direction of the drum 30', and the tip of the push rod 83 (the left end in FIG. 9). Is the above guide block 8
2 is pressed against the inclined cam surface 81a of the front cam 81 by a compression spring 84 housed in the front cam 81.

The push rod 83 is connected to the push rod 83 via two stays 85 and 85 and a manifold 86.
Each of the blow nozzles 54 is attached, and the stay 85 is connected to the guide groove 82 of the guide block 82.
a, the blow nozzles 54, 5
The nozzle 4 is positioned so as to face the center of the drum 30 ', and the above-described front cam 81, push rod 83 and the like constitute a nozzle shift means 80.

The structure other than the nozzle shift means 80 described above is basically the same as that of the screw conveyor 1 described above, and elements having the same functions as those of the screw conveyor 1 are shown in FIG. The detailed description is omitted by appending '(dash) to the reference numerals. Also,
The operation mode of the configuration shown in FIG. 9 and FIG.
Since the configuration is basically the same as that shown and described with reference to FIG. 8, detailed description will be omitted.

7 and 8 and FIGS. 9 and 1
In the configurations indicated by reference numerals 0 and 0, a front cam is used as the cam means. However, an appropriate cam means such as a cylindrical cam or a peripheral cam can be used. An arbitrary movement mode other than a simple stroke operation can also be set.

It is also possible to use a single blow nozzle to clean the entire area of the filtering member (punched metal) by operating the push rod as a shift member with a large stroke.

The screw conveyer 100 as a cutting waste conveying device shown in FIGS.
0 and a screw 120 housed inside the outer pipe 110, and a cutting oil tank adjacent to a machine tool (not shown), like the screw conveyor 1 shown in FIGS. Are installed in such a manner as to face the chip discharge port of the machine tool and to be inclined in the vertical direction.

The outer pipe 110 is located at the lower end side (FIG. 11).
A large-diameter pipe 111 constituting a separation function section on the right side (middle side) and a small-diameter pipe 112 constituting a collection function section on the upper end side (left side in FIG. 11). The pipe 111 is provided with a chip receiving tray 113 constituting a chip input port, while the small diameter pipe 112 is provided with a chip discharge port 114.

A chip guide extending from a chip outlet of a machine tool (not shown) is fitted in the chip receiving tray 113 of the large-diameter pipe 111. A cutting chip storage box (not shown) for storing cutting chips is arranged below the outlet 114.

On the other hand, the screw 120 is composed of a driving pipe 121 and a screw blade 122 fixed to the driving pipe 121.
1 and the small-diameter pipe 112, and was driven to rotate by a drive motor 123 provided at an end of the small-diameter pipe 112, discharged from a machine tool (not shown), and put into a cutting waste receiving tray 113. The cutting chips are removed from the outer pipe 11 based on the rotation of the screw 120.
0 and is discarded from the chip discharge port 114 to a chip storage box (not shown).

As shown in FIG. 12, an end wall 115 is fixed to an opening on the downstream side (left side in the figure) of the large-diameter pipe 111 constituting the outer pipe 110, and the outer pipe 110 is formed. The small-diameter pipe 112 is fixedly provided downstream of the large-diameter pipe 111 via the end wall 115.

The large-diameter pipe 111 and the small-diameter pipe 112 have respective bottom inner peripheral surfaces 111a for the purpose of smoothly transferring internal cutting chips from the large-diameter pipe 111 to the small-diameter pipe 112. , 112a
Are connected so as to be flush with each other.

For this reason, the central axes of the large diameter pipe 111 and the small diameter pipe 112 are vertically eccentric to each other, and as shown in FIGS. Is located in a lower region inside the large-diameter pipe 111.

As shown in FIG. 12 and FIG. 13, the peripheral wall 111A of the large-diameter pipe 111
An opening 116 is formed to release an upper half of a downstream region (left side in FIG. 11) with respect to the opening 116.
Are two openings 116A defined by the reinforcing ribs,
116B.

Incidentally, as shown in FIG.
6A and the central angle α of the opening 116B.
B are set to about 90 °, respectively, and the openings 116
The overall central angle α is set to about 210 °.

A drum 130 is rotatably fitted to the large-diameter pipe 111 so as to cover the opening 116. As shown in FIG. 12, the drum 130 runs a ball bearing 133 attached to an end flange 131 via a fastening bolt 132 on a bearing guide 134 fixed to the large-diameter pipe 111. The large-diameter pipe 111 is rotatably supported.

Further, the peripheral wall 130A of the drum 130
Are formed with windows 135A, 135B, 135C facing the opening 116 of the large-diameter pipe 111 during rotation, and as shown in FIG.
5C each have a central angle β of about 100 ° and are arranged and formed so as to maintain the same central angle (120 °).

Each window 1 is provided on the outer periphery of the drum 130.
A punching metal 136 is mounted as a filtering member made of a thin metal plate having a large number of small holes formed therein so as to cover 35A, 135B, and 135C. Needless to say, an appropriate member other than the above-described punched metal, for example, a wire mesh or the like can be adopted as the filtering member.

The large-diameter pipe 111 has an outer peripheral surface diameter of 190.7 mm and a wall thickness of 5.3 mm.
The outer diameter of the drum 130 is 216.0 mm, and the wall thickness is
It is set to 8.0mm. By the way, the small-diameter pipe 11
2 has an outer peripheral surface diameter of 114.3 mm and a wall thickness of 4.5 mm, while the screw 120 has a screw blade 1
The effective diameter of No. 22 is set to 100 mm.

As shown in FIG. 11, a drive motor 140 is provided above the drum 130, and a drive sprocket 141 provided on the drive motor 140
The transmission chain 1 wound around the driven sprocket 137 provided on the drum 130 by the fastening bolt 132
42, the drum 130 is connected to the drive motor 1
It is rotationally driven based on the operation of 40.

A set of air blow nozzles 160 as a cleaning means is attached to an operation rod 151 of the air cylinder 150 provided above the drum 130, and the air blow nozzle 160 is connected to the air cylinder. By injecting air from the air blow nozzle 160 while reciprocating by 150, the punching metal 136 attached to the drum 130 is ejected.
The entire area is cleaned. Note that reference numeral 170 in FIG.
A cover is provided around the drum 130 so as to cover the drum 130 and the air blow nozzle 160.

When the screw conveyor 100 starts operating, the screw 120 in the outer pipe 110
Is rotationally driven in the direction of arrow R1 (clockwise) in FIG.
The drum 130 that is loosely fitted to the motor 11 is rotationally driven by the driving motor 140 in the direction of the arrow R2 (counterclockwise) in FIG.

On the other hand, the cutting chips generated in the machine tool are put into a cutting chip receiving tray 113 of the outer pipe 110 (large-diameter pipe 111) together with a large amount of cutting oil, and then the outer pipe is rotated by the rotation of the screw 120. Pipe 1
The inside of the chip 10 is turned into a chip discharge port 11 through a chip input port 113.
4 and is discarded from the chip discharge port 114 into a chip storage box (not shown).

Here, when a large amount of cutting oil contained in the cutting chips is conveyed together with the cutting chips by the rotation of the screw 120 and reaches the opening 116, the opening 116 and the drum 1
Since the cutting oil is discharged to the outside through the windows 135A to 135C and the punching metal 136, the cutting chips and the cutting oil are surely separated, and the cutting oil is stored in a cutting oil tank (not shown). Meanwhile, the cutting chips are dumped in a cutting chip storage box (not shown).

On the other hand, when the screw conveyor 100 is in operation, the cutting chips are removed from the opening 116 of the large-diameter pipe 111.
Through the window 135A of the drum 130 (135B, 135B).
C), the opening 116 of the large-diameter pipe 111 and the drum 1
By the cooperative action based on the relative rotational movement with the windows 135A (135B, 135C) of the thirty, the cutting chips are finely cut.

Further, air is jetted from the above set of air blow nozzles 160 to the punching metal 136 provided on the rotating drum 130,
The entire area of the perforated metal 136 is cleaned, and small cutting debris clogging the perforated metal 136 is blown down into the outer pipe 110 (large-diameter pipe 111).

As described above, according to the screw conveyer 100 as the cutting chip conveying device, the cutting chips
0, so that the punching metal 136 as a filtering member is not inadvertently damaged by large cutting debris.
The cutting oil can be sufficiently and reliably separated and removed from the cutting chips input to the cutting device 10, and when the cutting chips are dumped in the cutting chip storage box, they are stored in a dense state with respect to each other. The size can be greatly reduced as compared with the conventional cutting chip storage box which stores the cutting chips in a large size.

Further, the screw conveyor 10 having the above-described structure is used.
According to 0, even when the amount of cutting chips discharged from the machine tool is large, in other words, even when the amount of cutting chips input to the outer pipe 110 is large, the amount of cutting chips supplied to the outer pipe 110 is reduced. Cutting oil can be separated and removed sufficiently and reliably.

That is, in the screw conveyor 1 described above, the diameter of the outer pipe 10 is the same over the entire length, and the part where cutting chips and cutting oil are separated, and the cutting chips downstream therefrom are separated. There is no difference in the inner diameter from the part to be conveyed and collected, and the inner diameter of the outer pipe 10 is the screw 2
Since it is only slightly larger than the outer diameter of 0, the ability to separate the cutting chips and the cutting oil is not sufficient for the ability to transport and collect the cutting chips. For example, there is a possibility that the process may overflow without catching up.

In order to cope with such inconvenience, in the screw conveyor 100, as described above, the separating function of the outer pipe 110 is constituted by the large-diameter pipe 111, and the screw 120 is connected to the large-diameter pipe 130.
Are located in the lower region inside.

By adopting such a configuration, a large amount of cutting chips input from the chip receiving tray 113 can be accommodated in the large-diameter pipe 111, so that the inside of the large-diameter pipe 111 serving as a separating function portion can be accommodated. In this case, the separation operation of the cutting oil for a large amount of cutting chips is performed.

Further, in the screw conveyor 100, as described in detail above, the large-diameter pipe 111 constituting the separation function part and the small-diameter pipe 112 constituting the recovery function part are connected to the bottom inner peripheral surface 111a and the bottom part. Because the inner peripheral surface 112a is connected to the inner peripheral surface 112a in a flush manner, the large-diameter pipe 11
The cutting chips from which the cutting oil has been separated inside 1 do not inadvertently stay at the joint between the large-diameter pipe 111 and the small-diameter pipe 112, and smoothly enter the small-diameter pipe 112 based on the rotation operation of the screw 120. Will be transported.

Further, in the screw conveyor 100, the large-diameter pipe 111 serving as the separating function and the small-diameter pipe 112 serving as the collecting function form the outer pipe 1
10, when the amount of cutting chips discharged from the machine tool increases or decreases, only the large-diameter pipe 111 is replaced, in other words, without changing the basic configuration, the large-diameter pipe can be used. It is possible to cope with the same components other than the pipe 111.

The screw conveyor 100 shown in FIGS. 11 to 13 has a pair of air blow nozzles 16.
0 is reciprocated by the cylinder actuator 150, but the cleaning means 50 shown in FIG.
A plurality of air blow nozzles 160 may be fixed as shown in FIG.
Instead of 50, the nozzle shift means 70 and 80 shown in FIG. 7 and FIG. 9 may be employed to reciprocate a set of air blow nozzles 160.

Further, in the screw conveyor 100, the punching metal 136 is cleaned by air jetted from a pair of air blow nozzles 160. However, as in the cleaning means 50 shown in FIG.
It is also possible to adopt a configuration in which cutting oil is injected from 0 as a cleaning fluid.

Further, the cutting chip conveying apparatus according to the present invention shown in FIGS. 1 to 13 is intended for various machine tools which discharge cutting chips containing cutting oil, and conveys cutting chips and also supplies cutting oil. It goes without saying that the means for recovery can be effectively applied in various industrial fields.

[0077]

As described above in detail, the cutting chip conveying device according to the present invention is provided with an outer cylinder which is installed inclined in the vertical direction and has an opening in the upper half of the peripheral wall in the downstream area of the cutting chip inlet. A pipe and a screw that is housed and installed inside the outer cylinder pipe and conveys cutting chips by a rotating operation, and is rotatably loosely fitted to the outer cylinder pipe so as to cover the opening, and A drum having a window facing the opening at the time of rotation and having a filtering member covering the window on the outer periphery is provided, and by the cooperation of the edge of the window and the edge of the opening based on the rotating operation of the drum. It is configured to cut chips. According to the above configuration, the cutting waste that has entered the window of the drum through the opening of the outer pipe is cut based on the rotating operation of the drum,
Without inadvertently damaging the filtering member provided on the drum, from the cutting chips introduced into the outer pipe, the opening of the outer pipe and the window of the drum, and the filtering member covering this window, Through this, a large amount of cutting oil is sufficiently and reliably separated and removed.

[Brief description of the 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 conveying device according to the present invention.

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

FIG. 4 is a cross-sectional side view of a main part of a cutting waste conveying device according to the present invention.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

6 (a) and 6 (b) are cross-sectional views of a principal part conceptually showing an operation mode of the cutting waste conveying device according to the present invention.

FIG. 7 is a side view showing a cleaning means of the cutting waste conveying device according to the present invention.

FIG. 8 is a sectional view taken along line BB of FIG. 7;

FIG. 9 is a side view showing another cleaning means of the cutting waste conveying device according to the present invention.

FIG. 10 is a sectional view taken along line CC of FIG. 9;

FIG. 11 is an overall side view showing another embodiment of the cutting waste conveying device according to the present invention.

FIG. 12 is a cross-sectional side view showing a main part in another embodiment of the cutting waste conveying device in a cutaway manner.

FIG. 13 is a sectional view taken along line DD of FIG. 12;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Screw conveyor (cutting chip conveyance device), 10 ... Outer pipe, 11 ... Cutting chip receiving tray (cutting chip input port), 12 ... Cutting chip discharge port, 13A, 13B, 13C ... Opening, 13Aa, 13Ba, 13Ca ... Edge, 20 ... Screw, 30 ... Drum, 31A, 31B, 31C ... Window, 31Aa, 31Ba, 31Ca ... Edge, 32 ... Punching metal (filtering member), 34 ... Driven sprocket, 35 ... Fastening bolt, 36A , 36B: roller, 42: drive sprocket, 52: blow nozzle (nozzle), 50: cleaning means, 60B: cleaning system supply pump, 70, 80: nozzle shift means, 71, 81: front cam (cam member), 73, 83: push rod (shift member), 100: screw conveyor (cutting chip conveying device), 110: outer cylinder pie 111 ... Large-diameter pipe (separation function part) 112: Small-diameter pipe (recovery function part) 113: Chip chip receiving tray (Chip chip inlet) 114: Chip chip discharge port 116: Opening 120: Screw , 130: drum; 135A, 135B, 135C: window; 136: punching metal (filter member); 160: air blow nozzle.

Claims (9)

(57) [Claims] 1. A chip installed in a vertically inclined manner, having a chip input port at one end and a chip discharge port at the other end, and a peripheral wall in a downstream area of the chip input port. An outer cylinder pipe having an opening for releasing at least an upper half, and the cutting chips containing cutting oil are installed and housed inside the outer cylinder pipe, and the cutting chips containing cutting oil are rotated from the cutting chip input port to the cutting chip discharge port. A screw that conveys toward the outer pipe, is rotatably loosely fitted to the outer pipe so as to cover the opening, has a window facing the opening at the time of rotation, and has a filtering member that covers the window on the outer periphery, And a drum that cuts the cutting chips by a cooperative action of the edge of the window and the edge of the opening based on an operation. 2. The separation pipe according to claim 1, wherein the outer pipe is provided with the cutting waste inlet and the opening, and the drum is loosely fitted therein. A collection function unit provided on the downstream side of the separation function unit in a mode in which the inner diameter dimension is small and the cutting chip discharge port is provided, and the inner peripheral surface of the bottom is flush with the inner peripheral surface of the bottom of the separation function unit. The cutting chip conveying device according to claim 1, further comprising: 3. The cutting according to claim 1, wherein the rotation direction of the screw with respect to the outer pipe and the rotation direction of the drum with respect to the outer pipe are opposite to each other. Scrap conveyor. 4. The drum is rotatably supported by the outer pipe via a roller provided at an end of the drum, and the driven sprocket is fixed to the roller at one end of the drum. The bearing is supported via a fastening bolt for fastening.
And a cutting waste conveying device according to claim 2. 5. A cleaning means for injecting a fluid through a nozzle in an upper area with respect to the drum to wash the filter member of the drum over the entire area. 3. The cutting chip conveying device according to 2. 6. The cutting waste conveying apparatus according to claim 5, wherein the fluid ejected from said cleaning means is cutting oil fed under pressure through a supply pump of a cleaning system. 7. The cutting chip conveying device according to claim 5, wherein the fluid ejected from said cleaning means is air. 8. A cam member directly connected to a driving sprocket for rotating the drum, and a shift member that moves based on the operation of the cam member and supports the nozzle of the cleaning means, 6. A cutting chip conveying device according to claim 5, further comprising nozzle shift means for shifting said nozzle based on rotation of a driving sprocket. 9. The nozzle shift means, wherein the cam member is a front cam having an inclined cam surface, and the shift member is a push rod opposed to the front cam. A cutting chip conveying device as described in the above.