JPH0975622A - Chip conveyor apparatus equipped with backwashing rotary filter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the renewal work of the clogging or damage of the filter device used in a chip conveyor apparatus to markedly shorten a working time in a treatment apparatus separating the cut refuse in the dirty coolant discharged from a metal processing machine tool to recycle the same. SOLUTION: In a backwashing filter apparatus held by the conveyor chains 31 , 32 of a chip conveyor apparatus 2 left and right as well as up and down to be rotated in a following manner, a mesh filter 20 is housed in semicylindrical two-split coarse filters 271 , 272 made of a punched plate. The mesh filter 20 can be expanded and contracted like an accordion manner by a plurality of stays 31 expansible and contractible by the insertion of a coil spring and the backwashing pipe 35 provided with a backwashing soln. jet orifice inserted in the filters is pulled out of the mesh filter 20. Therefore, the renewal work of the mesh filter 20 can be performed in a markeldy easy manner.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing device for separating and recycling the dirty coolant discharged from a metalworking machine tool from the chips contained in the liquid.
In order to improve the processing accuracy of the coolant, clogging of the filter filtration device used in combination with the chip conveyor device,
Alternatively, the present invention relates to an improvement in which renewal work at the time of breakage is facilitated and the work time is remarkably shortened.

[0002]

2. Description of the Related Art As shown in FIG. 4, a conventional rotary filter device with backwash has a plurality of parts corresponding to a cylindrical mesh filter such as a hand wind harp of the present invention between a plurality of mounting rings 51 at both ends. Create a cylindrical filter frame by handing over the stay 52, and wrap the mesh filter 53 around it,
Attach with band clip 54 and snap 55,
Further, it was a fixed frame mesh filter in which a backwash pipe 56 provided with a backwash liquid ejection port was fixed between both mounting rings 51 inside.

[0003]

The fixed frame mesh filter including the backwash pipe due to clogging or damage of the rotary filter device is attached to or detached from the conveyor device,
Also, the work of replacing the mesh filter attached by snapping etc. was extremely troublesome and wasted a lot of work time.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. A scraper is attached between two endless conveyor chains at regular intervals, and the endless conveyor chains are moved by the scrapers. , Scraping chips in the coolant discharged from the metalworking machine tool in front of the scraper, in a chip conveyor device for chip treatment of the coolant, fine particles of chips that cannot be processed by the chip conveyor device are filtered by a filter. A rotary filter device with backwash is installed to separate the mesh filter, and when the cylindrical mesh filter in the rotary filter is replaced due to clogging or damage of the filter, the mesh filter can be expanded or contracted, or the mesh filter can be expanded or contracted. Since the backwash pipe installed inside the pipe can be pulled out to a position where it does not interfere, Yufuiruta wherein the can easily removable, a chip conveyor with a rotating filter device with backwash.

[0005]

[Operation] In a chip conveyor device equipped with a rotary filter device with backwash according to the present invention, scrapers are attached at a constant interval between two endless conveyor chains, and the movement of the endless conveyor chains causes metal scraping on the front surface of the scraper. In a chip conveyor device for chip disposal of the coolant that scrapes out the chips in the coolant discharged from the processing machine tool, with a backwash to separate fine particles of chips that cannot be processed by the chip conveyor device by filter filtration. The rotary filter device equipped with a rotary filter device is a ring that is loosely fitted to the cap of a cylindrical rotary shaft whose both ends are supported by the conveyor body, and is expandable by inserting a plurality of coil springs inside. Cylindrical mesh filter that can extend and contract like a hand wind harp is easy to put on and take off by passing the stay between the rings The cylindrical mesh filter is covered with a cylindrical rough filter formed by a punching plate concentric with the cylindrical mesh filter, which is divided into two parts in the shape of a kamaboko and can be opened in a hinged manner. Replacement work due to clogging or damage of the cylindrical mesh filter is facilitated. Further, a backwash pipe provided with a plurality of backwash liquid ejection ports is inserted inside the rotary filter device, and when the cylindrical mesh filter is replaced, the backwash pipe is brought to a position where it does not interfere with it. Pull out and work. Wheels that engage with the endless conveyor chain are attached to the bases with cylindrical rotary shafts at both ends of the rotary filter device, and the rotary filter device is driven to rotate as the conveyor chain moves.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a chip conveyor device equipped with a rotary filter device with backwash according to the present invention will be described with reference to FIGS. 1, 2 and 3. In the coolant tank 1, two endless conveyor chains 3 ₁ . 3 ₂ (hereinafter referred to as a conveyor chain) is provided between the pair of drive sprocket wheels 4 and driven sprocket wheels 5 and chain guides 6 ₁ . 6 ₂ and chain presses ₇₁ to _{3 3} are guided to be in a transition state, and are rotatably driven by the transmission chain 11 from the sprocket wheel 9 of the motor 8 with a speed reducer to the sprocket wheel 10 on the conveyor side. ₁ . 3 scraper 12 is mounted at a suitable fixed interval between _2, the conveyor chain ₃ 1. 3 by _two transition advances scraped chips 14 precipitated on the bottom plate 13 of the coolant tank 1, for conveying further to the discharge port 17 located on the receiving box 16 pushes up the inclined portion 15. In addition, the coolant tank 1 is provided with an inflow port 18 of the dirty coolant containing chips and the conveyor chain 3 ₁ . 3 upper lid 22 hinged open and close outlet 21 of cylindrical with backwash was sandwiched vertically in _two rotary filter device 19 Mesh filter 20 (hereinafter referred to as mesh filter) is provided. The rotary filter device 1
9 has cylindrical rotary shafts 23 ₁ . 23 ₂ are rotatably supported by four cam floors 24 attached to the coolant tank 1, and the cylindrical rotary shafts 23 ₁ . Each of 23 _2, the conveyor chain ₃ 1. 3 ₂ engages the wheel 2
5 is fixed and the conveyor chain 3 ₁ . 3 ₂ Migration by driven to rotate. Further, the cylindrical rotary shaft 23 ₁ . The 23 _2,
Next cap 26 opposing inner attaches the cylindrical mesh filter 20, further mesh filter 20 and coarse cylindrical filter 27 ₁ concentric with the punching plate. Two
7 2 _(hereinafter referred to as coarse filter) is this covers the mesh filter 20 is divided into two semi-cylindrical can be open and close the hinge pin 28 as a rotation axis, to facilitate attachment and detachment manipulation of the inside of the mesh filter 20. The mesh filter 20
Is a ring 29 in which both ends of the flexible mesh filter are loosely fitted to the mouthpiece 26, and a sheath type expansion stay 31 in which a plurality of coil springs 30 are inserted is provided in both rings 2.
The mesh filter 20 is stretched like a hand wind harp and is easily detachable from the left and right mouthpieces 26. The packing 32 is for sealing the dirty coolant chamber 33 before processing and the clean coolant chamber 34 after filtration. Further, the backwash pipe 35 is a square pipe so as not to rotate, and a plurality of backwash liquid ejection ports 36 are provided on one surface thereof, and a clean coolant pressurized by an electric pump (not shown) is passed through the hose 37. It is sent to the backwash pipe 35 and jetted from the inside of the mesh filter 20. The backwash pipe 35 is fixed to the coolant tank 1, is supported by a guide pipe 38, and is pulled out to a stop pin 40 by operating a handle 39 to avoid interference with the attaching / detaching operation of the mesh filter 20. The notch 41 is the backwash pipe 35.
For holding the position of the insertion / extraction end.

In a chip conveyor device equipped with a rotary filter device with backwash having such a structure, when a dirty coolant containing chips is caused to flow from the inflow port 18 of the coolant tank 1 into the dirty coolant chamber 33, Chips gradually settle and accumulate on the bottom plate 13, and the scraper 12 moving in the direction of arrow A scrapes the set chips 14, further pushes up the inclined portion 15 and pushes up the inclined portion 15 into the receiving box 16 from the discharge port 17. Drop it on. On the other hand, the fine particles of the chips in the dirty coolant do not easily settle and move in the direction of arrow A while floating in the coolant, and the conveyor chain 3 ₁ . 3 reaches the rotary filter device 19 which is driven to rotate at a _second transition, crude filter 27 ₁ wound with punching plate. 27 ₂ and the mesh filter 20
After being filtered by, it flows in the direction of arrow A and then in the direction of arrow C, reaches the clean tank chamber 34, and is pressure-fed to a processing site of the mother machine or the like by a coolant pump (not shown) installed here. On the other hand, among the fine grains in the chips in the dirty coolant, the coarser one is slightly coarser than the coarse filter 27 ₁ . 27
Passage is blocked by the _second punching plate, then fine chips are captured by the mesh filter 20 to form sludge, which is deposited and deposited on the outer periphery of each filter and gradually reduces the filtering function. Therefore, a clean coolant, which is appropriately pressurized by an electric pump for backwashing (not shown), is jetted from the backwashing liquid jet port 36 of the backwashing pipe 35 to the inside of the mesh filter 20, and the accumulated sludge is discharged. Is washed and removed into the dirty coolant chamber to restore the filtering function of each filter. If the backwashing operation is repeated, the mesh filter 20 will be gradually clogged, and the restoration will not be effective. Therefore, the operation of the chip conveyor device 2 is appropriately stopped, the upper lid 22 is opened, and the backwashing is performed first. Pull the pipe 35, to open the opening and closing side 27 ₁ of the crude filter, removed from the mouthpiece 26 and then shrink the mesh filter 20 in accordion shape,
The rotary filter device 19 is restored by cleaning or updating outside the machine. A plurality of telescopic stays 31 with coil springs are used for expanding and contracting the cylindrical mesh filter 20, but the invention is not limited to this, and a single coil spring is inserted between the rings 29 to fill the inside of the cylinder of the filter. You may. (Not shown)

[0008]

According to the present invention, in order to separate and capture the chips in the dirty coolant discharged from the metalworking machine tool, a rotary filter device with backwash is used in addition to the chip conveyor device to remove the chips. In this device, which processes and recycles even the fine particles, the sludge accumulated on the filter is washed by backwashing to restore the reduction of the filtering ability. When the filter is removed or removed due to insufficient clogging or damage, the filter can be expanded and contracted like a hand wind harp, and the backwash pipe can be easily moved to prevent interference with the filter removal. The replacement work can be reduced in an extremely short time.

[Brief description of drawings]

FIG. 1 is a front sectional view of a chip conveyor device equipped with a rotary filter device with backwash according to the present invention.

FIG. 2 is an arrow view of a chip conveyor device including a rotary filter device with backwash according to the present invention taken along the line I-I.

FIG. 3 is a perspective view showing an example of a cylindrical mesh filter of a chip conveyor device equipped with a rotary filter device with backwash according to the present invention.

FIG. 4 is a perspective view showing an example of a conventional cylindrical mesh filter.

[Explanation of symbols]

1 ... Coolant tank 6 ₁ . 6 ₂
... chain guide 2 ... chip conveyor device 7 _{1 to 3,}
..Chain holder 3 ₁ . 3 ₂ ... Endless conveyor chain 8 ... Motor with reduction gear (conveyor chain) 12 ... Scraper 4 ... Drive sprocket wheel 13 ...
Bottom plate 5 ... Followed sprocket wheel 14 ...
Settling chips 16 ... Inbox 33 ...
・ Dirty coolant chamber 17 ・ ・ ・ Discharge port 34 ・ ・
・ Clean coolant chamber 18 ・ ・ ・ Inlet 35 ・ ・
・ Backwash pipe 19 ・ ・ ・ Rotating filter device 36 ・ ・
・ Backwashing liquid ejection port 20 ... Cylindrical mesh filter 38 ... Guide pipe (mesh filter) 39 ... Handle 23 ₁ . 23 ₂ ·· Cylindrical rotating shaft 40 ··
・ Stop pin 24 ・ ・ ・ Cam floor 41 ・ ・
・ Notch 25 ・ ・ ・ Wheel 51 ・ ・
・ Mounting ring 26 ・ ・ ・ Base 52 ・ ・
・ Stay 27 ₁ . 27 ₂ ... Coarse cylindrical filter (coarse filter) 53 ... Mesh filter 29 ... Ring 54 ...
・ Band clip 30 ・ ・ ・ Coil spring 55 ・ ・
・ Snap 31 ・ ・ ・ Expanding stay 56 ・ ・
・ Backwash pipe

Claims (3)

[Claims] 1. A scraper is attached at a constant interval between two endless conveyor chains, and the movement of the endless conveyor chains scrapes out the chips in the coolant discharged from the metalworking machine tool in front of the scraper. In a chip conveyor device for chip treatment of coolant, a rotary filter device with backwash is provided to separate fine particles of chips that cannot be processed by the chip conveyor device by filter filtration, and the filter is clogged or damaged. Then, the cylindrical mesh filter in the rotary filter can be expanded and contracted during replacement,
A chip conveyer device equipped with a rotary filter device with backwash, which can be easily attached to and detached from the rotary filter device. 2. The rotary filter device with backwashing is a ring in which both ends of a flexible cylindrical mesh filter are fitted into respective caps with a cylindrical rotary shaft, and between the rings of the both ends inside the cylindrical mesh filter. A plurality of stays, which can be expanded and contracted by inserting coil springs, are provided, and the cylindrical mesh filter can be expanded and contracted in the lengthwise direction like a hand wind harp, and is loosely fitted between the cylindrical rotary shafts. Further, the outer periphery of the cylindrical mesh filter is covered with a coarse cylindrical filter formed by a punching plate concentric with the cylindrical mesh filter, and the coarse cylindrical filter is divided into two parts from the center into a semi-cylindrical shape. 9. The reverse according to claim 1, wherein it is possible to open the cylinder mesh filter in one direction, and to enable attachment / detachment of the internal cylindrical mesh filter, and to freely rotate together with the cylindrical mesh filter. A chip conveyor device equipped with a rotating filter device with washing. 3. The rotary filter device with backwashing comprises a backwash pipe provided with a plurality of backwash liquid ejection ports along the axis of the cylinder in the rotary filter device in the axial direction of the rotary filter device. The rotary filter device with backwash according to claim 1, wherein the backwash pipe can be pulled out to a position where it does not interfere with the filter when the cylindrical mesh filter is attached or detached. Chip conveyor device equipped with.