JP2002326138A - Chip discharging conveyor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chip discharging conveyor device that forcibly evacuates a flow of chips prone to remain in a tail part where a hinge belt is deflected or circulated from a lower return side to an upper conveying side to ensure a smooth circulating deflection of the hinge belt, and forcibly evacuates a flow of relatively large chips engaged in a belt conveying surface of the hinge belt and short and small chips prone to deposit in a turbid coolant treatment vessel to facilitate washing maintenance. SOLUTION: An inner circumferential region of the tail part of the chip discharging conveyor device 10 where the hinge belt 11 arranged in the turbid coolant treatment vessel 13 is deflected or circulated from a lower return side to an upper conveying side is provided with a coolant flow means 14 for evacuating a flow of chips intruding through a belt conveying surface of the upper conveying side and depositing on a belt rear surface of the lower return side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cutting metal chips such as irons and aluminums, and cutting chips such as grinding chips discharged from a machine tool when performing metal processing such as cutting and grinding with the machine tool. The contained coolant is poured into the turbid coolant treatment tank, and only the chips are captured on the belt transfer surface of the hinge belt provided in the turbid coolant treatment tank, and the chips are scooped out of the tank and carried out. The present invention relates to a powder carrying conveyor device.

[0002]

2. Description of the Related Art When machining a metal material with a machine tool, such as cutting and grinding, a coolant such as water in which a cutting oil or a lubricant is dissolved is used to cool a cutting tool, a grinding tool, and a material to be processed. Coolant that is used and contains chips discharged from the machine tool after use is processed by a chip discharge conveyor device so that only chips are captured and collected.

[0003] Therefore, a conventional chip discharging conveyor device shown in FIG. 7 is provided with a turbid coolant processing tank 13 into which a coolant C containing chips discharged from a machine tool M is charged, and a turbid coolant processing tank 13. An endless hinge belt 11 is provided in a circling state. A driving sprocket for transmitting power to the hinge belt 11 is disposed together with the driving motor 12 at a chip discharging portion where the chips are scooped out of the turbid coolant treatment tank 13 and carried out to the chip collecting box B or the like. On the other hand, a pair of traveling rollers 11b mounted on both sides of the hinge belt 11 as shown in FIG. Only the cantilevered tail disk 14d is arranged,
The inner peripheral region of the tail is in a simple hollow state. The traveling roller 14d is restricted in traveling by upper transport side rails provided on both side walls of the turbid coolant treatment tank 13, and travels on a lower return side rail.

[0004]

However, in such a conventional chip carry-out conveyor device, a long chip, a curled chip or a long chip contained in the coolant C supplied to the turbid coolant treatment tank 13 is used. Relatively large chips such as solidified nodules are captured and conveyed by the belt conveyance surface of the hinge belt 11, and are turbid coolant treatment tanks 13 by the chip discharge cleats 11a provided on the belt conveyance surface.
It is scooped out and carried out to the chip collection box B, etc.
As shown in FIG. 9, the paper cannot be captured and conveyed on the belt conveying surface on the upper conveying side, penetrates into the inner peripheral side of the belt, sediments and accumulates on the back surface of the belt on the lower returning side, and It gradually accumulates in the inner peripheral area and enlarges into a spiral-shaped chip solid R. Then, when the spirally enlarged chip solids R become full in the inner peripheral region of the tail portion, the full-cut chip solids R move the hinge belt 11 which is about to rotate in the inner direction. Pressing from the peripheral area may cause bending failure in the hinge part, or may cause excessive sliding resistance,
Eventually, there is a problem that the hinge belt 11 stops.

Therefore, in the conventional chip discharge conveyor device, in order to eliminate the enlargement of the chip solids S in the inner peripheral area of the tail portion, the turbid coolant treatment tank 13 is used.
A drain long hole 13b opened along the transport direction of the hinge belt 11 is provided on both side walls of the hinge belt, and short and small chips s penetrating and entering the belt inner peripheral side are discharged together with the coolant C from the drain long hole 13b. Since it depends on the natural flow of the coolant C, the short and small chips s cannot be sufficiently discharged, and accumulate on the bottom of the turbid coolant treatment tank 13 to prevent the hinge belt 11 from being transported. In order to stop the belt 11, there is a problem that a large workload is required for the maintenance thereof, and in order to positively discharge the short and small chips s from the drain long hole 13b, it is necessary to simply It is necessary to largely change the design of the flow path structure in which the flow of the coolant C is corrected so that short and small chips s can be discharged without depending on the natural flow of the coolant C. There has been a troublesome problem.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art, and to forcibly remove chips that tend to stay in a tail portion in which a hinge belt rotates circumferentially from a lower return side to an upper transport side. Achieves a smooth circumferential rotation of the hinge belt by eliminating fluid flow, and forcibly removes chips that tend to accumulate in the turbid coolant treatment tank and chips that bite into the belt transport surface of the hinge belt. It is an object of the present invention to provide a chip discharge conveyor device whose cleaning maintenance is easy.

[0007]

To achieve the above object, according to the present invention, there is provided an endless hinge belt provided with a chip carrying cleat on a belt conveying surface in a rotating state. A coolant containing chips is supplied to the turbid coolant treatment tank, and only the chips are captured and conveyed on the belt conveying surface of the hinge belt, and are scooped up and carried out of the turbid coolant treatment tank. In the chip discharge conveyor device, the hinge belt penetrates from the belt transport surface on the upper transport side into the inner peripheral area of the tail portion that rotates circumferentially from the lower return side to the upper transport side, and is deposited on the back surface of the belt on the lower return side. The above-mentioned problem has been solved by providing a coolant flowing means for flowing and removing the chips.

According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, the coolant flowing means is laid in a width direction of the hinge belt and ejects a coolant toward the back surface of the belt. The above-mentioned problem has been solved by providing a coolant flow pipe having an ejection hole formed therein, and an injection nozzle branched from the coolant flow pipe and injecting coolant toward the side of the belt. .

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the turbid coolant treatment tank is settled and deposited from the belt transport surface on the upper transport side. The above-mentioned problem is further solved by providing a side wall having a coolant outlet for flowing chips out of the tank.

The specific configuration of the tail portion in the present invention is not limited as long as the hinge belt can rotate circumferentially from the lower return side to the upper transport side in the tail portion. May be
For example, a tail form in which the hinge belt is circumferentially rotated at a turning angle of 180 degrees and the lower return side and the upper conveyance side are in a parallel state, or a state in which the hinge belt is swelled at a turning angle exceeding 180 degrees. For example, a tail form may be adopted in which the lower return side and the upper transfer side are in a state of being parallel to the upper transfer side in a circumferential direction.

[0011]

Since the present invention has the above-described device configuration, it has the following effects unique to the present invention. According to the first aspect of the present invention, when the chips that enter from the belt transport surface on the upper transport side and accumulate on the belt back surface on the lower return side are transported to the inner peripheral area of the tail portion, the coolant flow means Forcibly removes the chips conveyed to the inner peripheral area of the tail portion, and smoothly turns the hinge belt from the lower return side to the upper conveyer side.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the coolant fed into the coolant flow pipe which is bridged in the width direction of the hinge belt is also provided. Spouting toward the belt back surface of the hinge belt through the ejection holes arranged in the transverse direction of the coolant flow pipe, while wiping off the chips that settle and accumulate on the belt back surface on the lower return side, The back side of the belt on the return side is backwashed to forcibly blow away the chips that have caught on the belt conveying surface of the hinge belt. Then, the coolant sprayed by the spray nozzles branching from the coolant flow pipe actively removes chips wiped or blown away by the coolant ejected from the ejection holes toward the side of the belt. .

Further, according to the third aspect of the present invention,
In addition to the effect of the invention according to claim 1 or 2, in addition to the provision of the coolant outlet formed on the side wall of the turbid coolant treatment tank, the coolant ejected from the ejection hole or the ejection nozzle can be used. The swarf flows out of the turbid coolant treatment tank through the coolant outlet on the side wall, with the chips being removed toward the side of the belt.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment which is an embodiment of the present invention will be described with reference to the drawings. FIGS. 1 to 4 relate to a first embodiment of the present invention. FIG. 1 is a diagram showing a use mode of a chip carrying conveyor device according to a first embodiment of the present invention. FIG. FIG. 3 is a sectional view taken along line XX of FIG.
FIG. 4 is a cross-sectional view taken along line YY of FIG. 1, and FIG. 4 is an explanatory diagram illustrating a flow of coolant in the first embodiment.
The arrows in FIGS. 1 to 4 indicate the flow of the coolant C. First, FIG. 1 shows a state in which a chip discharge conveyor device 10 of the present invention is disposed adjacent to a machine tool M in a state of being placed at an upper position of a coolant collection tank 20, and the machine tool M
Metal, such as iron and aluminum,
A relatively large chip S such as a long chip, a curled chip, or a lump of solidified chips is captured by the belt conveying surface of the hinge belt 11 from the coolant C containing chips such as grinding chips. This is a first embodiment showing a use mode in which the coolant C is carried out to the chip collection box B and the coolant C after the relatively large chips S are captured and collected is stored in the coolant collection tank 20. In the coolant collecting tank 20, short and small chips s and the like that have not been caught and collected by the chip carrying conveyor device 10 of the present invention are added to the coolant C.
A swarf separation bucket 21 for separating swarf is provided inside.

The chip discharging conveyor device 10 of the present invention comprises an endless hinge belt 11 provided with a chip discharging cleat 11a on a belt conveying surface, and the hinge belt 11 is rotated circumferentially from an upper conveying side to a lower returning side. A drive motor 12 for driving a belt between a chip discharge portion for discharging chips in the opposite direction and a tail portion that rotates circumferentially from the lower return side to the upper transport side, and the hinge belt 11 is provided in a rotating state. Has a basic structure including a turbid coolant treatment tank 13, and captures and transports only chips from the coolant C discharged from the machine tool M, scoops the chips out of the turbid coolant treatment tank 13, and collects chips. It is configured to be dropped and transported to box B.

The above-mentioned hinge belt 11 is provided on the inner peripheral area of the tail portion which rises in a mountain, which is circumferentially rotated from the lower return side to the upper transport side, as shown in FIGS. Coolant flow means 14 is provided for flowing and removing short and small chips s and the like which have entered the belt conveyance surface and accumulated on the belt back surface on the lower return side. The coolant flow means 14 has a width of the hinge belt 11. A coolant flow pipe 14b formed with a plurality of ejection holes 14a for ejecting the coolant C toward the back surface of the belt in a horizontal direction, and a coolant C that branches off from the coolant flow pipe 14b toward the belt side. And a jet nozzle 14c for jetting. In the first embodiment, the coolant C and the like recovered in the coolant recovery tank 20 (not shown) are refluxed through a reflux pump or the like and used as a medium flowing into the coolant flow pipe 14b. However, separately, a purified coolant sent out by a refueling pump or the like may be used, and the ejection timing of the ejection holes 14a and the ejection timing of the ejection nozzles 14c may be continuous timing or intermittent timing. It does not matter which one. Regarding the specific shape of the ejection hole 14a, a hole simply formed in the coolant flow pipe 14b or a nozzle-like hole in which the coolant diffuses in a fan shape may be used.

The coolant flow pipe 14b
Is fixed to the side wall of the turbid coolant treatment tank 13 so as to be in a transverse state in the width direction of the hinge belt 11,
The ejection direction of the ejection hole 14a and the ejection direction of the ejection nozzle 14c are regulated in a fixed direction. Further, on both sides of the coolant flow pipe 14b, a number of running rollers 11b attached to both sides of the hinge belt 11 are provided. Tail disks 14d are provided for smooth sliding contact.

On the side wall of the turbid coolant treatment tank 13, short chips s which tend to settle from the belt conveyance surface on the upper conveyance side and tend to accumulate on the tail portion are formed by the coolant flow means 14. A coolant outlet 13a for forcibly eliminating the flow of fluid outside the coolant 13, and short chips s that open along the transport direction of the hinge belt 11 and penetrate into the inner circumferential side of the belt are discharged together with the natural flow of the coolant C. Drain hole 13b is provided.

Therefore, in the case of the use mode of the first embodiment, as shown in FIGS. 3 and 4, the chip discharge conveyor device 10 of the present invention enters the chip discharge conveyor device 10 from the belt conveyance surface on the upper conveyance side. Short and small chips accumulated on the back of the belt on the lower return side
Is transported to the inner peripheral area of the tail, the hinge belt 1
Coolant flow pipe 1 laid in the width direction of 1
The coolant C fed into the coolant flow pipe 4b is provided with a plurality of ejection holes 1 arranged in the transverse direction of the coolant flow pipe 14b.
4a, squirts toward the belt back surface of the hinge belt 11 to wipe away short and small chips s settled and deposited on the belt back surface on the lower return side, and backwash the belt back surface on the lower return side to hinge. The relatively large chips S biting on the belt conveying surface of the belt 11 are forcibly blown off. The coolant C sprayed by the spray nozzle 14c branched from the coolant flow pipe 14b removes the short and small chips s wiped by the coolant C ejected from the ejection holes 14a and the relatively large chips S blown off. Actively remove the flow toward the side of the belt.

The short chips s and the relatively large chips S which have been flow-eliminated to the side of the belt together with the coolant C injected from the injection nozzle 14c are supplied to the coolant formed on the side wall of the turbid coolant treatment tank 13. Outlet 13a
Is discharged and stored in the coolant recovery tank 20 via On the other hand, short chips s that penetrate into the belt inner peripheral side and float along with the natural flow of the coolant C that has flowed into the turbid coolant treatment tank 13 form drain long holes 13 b that open along the transport direction of the hinge belt 11. Then, it is discharged to the coolant recovery tank A and stored. In addition, the chip separation bucket 21 inside the coolant collection tank 20 is provided.
Is capable of separating short and small chips s and relatively large chips S that have not been captured and collected by the chip discharge conveyor device 10 of the present invention from the coolant C, and the coolant collected in the coolant collection tank 20. C and short and small chips
Also, the post-processing of the relatively large chip S is simplified.

Therefore, in the case of the use mode of the first embodiment as described above, the chip discharge conveyor device 1 of the present invention is used.
0 forcibly removes small chips s, which tend to stay in the tail portion of the hinge belt 11 from the lower return side to the upper transfer side in the circumferential rotation direction, to achieve a smooth circumferential rotation direction of the hinge belt 11. At the same time, relatively large chips S biting on the belt conveying surface of the hinge belt 11 and short and small chips s which tend to accumulate in the turbid coolant treatment tank 13 can be forcibly flow-eliminated. To achieve
The device configuration attached to the chip discharging conveyor device 10 of the present invention can be simplified, and the chip discharging conveyor device 10 of the present invention suffices in consideration of the installation area, device cost, power consumption, and the like. Excellent cost performance can be exhibited under a use condition where the coolant C containing cutting chips such as cutting chips and grinding chips of metals such as irons and aluminums has a small flow rate.

Next, FIGS. 5 and 6 relate to a second embodiment of the present invention, and FIG. 5 is a diagram showing the manner in which a chip carrying conveyor device according to a second embodiment of the present invention is used. 6 is a sectional view taken along line YY of FIG. The arrows in FIGS. 5 and 6 indicate the flow of the coolant C. First, in the second embodiment shown in FIG. 5, the coolant recovery tank 20 as employed in the first embodiment of FIG.
This is a usage mode in the case of replacing the filtration drum type coolant purifier 30 known in 5213 and the like.

Therefore, the chip discharge conveyor device 1 of the present invention.
Since 0 is the same as that of the first embodiment described above, the description thereof is omitted, and the filter drum type coolant purifying device 30 is supplementarily described below. The filter drum type coolant purifying device 30 is provided with the chip discharging conveyor device 10 of the present invention.
The cleaner C is disposed adjacent to the machine tool M in an integrated state at a lower position of the machine tool, and cleans the coolant C containing the small chips s and the like that have not been captured and collected by the chip carrying conveyor device 10 of the present invention. It is for reuse to M. The reference numeral 15 in FIG. 5 denotes a coolant (not shown) in which the coolant C or the like collected in the coolant collecting tank 20 is recirculated through a recirculation pump or the like, or purified by a separate refueling pump or the like. Coolant for coolant flow 1
4b is a coolant pipe for feeding into 4b. Reference numeral 31 denotes a coolant purifying tank for collecting and storing the coolant C discharged from the chip discharge conveyor device 10 of the present invention, and reference numeral 32 denotes a chip discharge conveyor device 10 of the present invention.
Is a cylindrical filter drum for catching chips contained in the coolant C discharged from the coolant C. Reference numeral 33 is provided with a chip discharging scraper on a belt conveying surface, while rotating around the inside of the coolant purification tank 31. An endless conveyor belt for carrying out the swarf captured by the filtration drum 32 to the outside of the coolant purification tank 31.
3 is a backwash nozzle for eliminating clogging.

Therefore, in the case of such a use mode of the second embodiment, as shown in FIGS. 5 and 6, the coolant C discharged from the injection nozzle 14c of the chip discharge conveyor device 10 of the present invention becomes turbid. The coolant is discharged and stored in the coolant purifying tank 31 of the filter drum type coolant purifying apparatus 30 through the coolant outlet 13 a formed on the side wall of the coolant treating tank 13.
The small chips s which penetrate into the belt inner peripheral side and float along with the natural flow of the coolant C flowing into the coolant purifying tank 31 through the drain long holes 13b opened along the conveying direction of the hinge belt 11. Is discharged and stored. In the filter drum type coolant purifier 30, the coolant C discharged from the chip discharge conveyor device 10 is purified by the filter drum 33, and the filtered chips are discharged out of the coolant purifier tank 31 by the endless conveyor belt. Is done.

Therefore, in the case of the use mode of the second embodiment as described above, similarly to the first embodiment, the chip discharge conveyor device 10 of the present invention is arranged such that the chip discharging conveyor device 10 is conveyed upward from the lower return side of the hinge belt 11. The small swarf s, which tends to stay in the tail part which rotates in the circumferential direction, is forcibly flow-eliminated to achieve a smooth circumferential rotation of the hinge belt 11 and bite into the belt conveying surface of the hinge belt 11. Relatively large chips S
The small and small chips s which tend to accumulate in the turbid coolant treatment tank 13 can be forcibly flow-eliminated, and simple cleaning maintenance can be achieved. In addition, the filtration drum type coolant purifying device 30 purifies the coolant C including the small and small chips s and the like that are not captured and collected by the chip carrying conveyor device 10 of the present invention, and reuses the coolant C for the machine tool M. .

As described above, the chip discharge conveyor device 10 of the present invention
Each of the above-described embodiments has been described as a usage mode of FIG.
It can be used in a combined form in combination with a coolant recovery tank 20 having a chip separation bucket 21 as shown in FIG. 5 or an auxiliary device having a device form other than the filtration drum type coolant purifying apparatus 30 as shown in FIG. Needless to say.

[0027]

As described above, since the present invention has the above-described device configuration, it has the following effects unique to the present invention. According to the first aspect of the present invention, the coolant flowing means intrudes from the belt transport surface on the upper transport side, accumulates on the belt back surface on the lower return side, and is transported to the inner peripheral area of the tail portion. Is forced to flow away, so that it is possible to eliminate the spiral swarf solids generated in the inner peripheral region of the tail portion as in the conventional case, so that the hinge belt can be smoothly moved from the lower return side to the upper transport side. The rotation of the hinge belt can be prevented, and the halt of the hinge belt caused by such a spiral swarf solid can be prevented.

According to the second aspect of the present invention, in addition to the effects of the first aspect, the chips and the belt wiped from the back surface of the belt on the lower return side by the coolant ejected from the ejection holes. Chips blown off from the conveying surface can be positively flow-eliminated toward the belt side by the injection nozzle, so that the self-cleaning function of the hinge belt on the belt conveying surface can be efficiently exhibited, and Since the self-cleaning function is exhibited by effectively utilizing the inner peripheral area of the tail portion, it is not necessary to secure an extra device space for that.

Further, according to the third aspect of the present invention,
In addition to the effects of the invention according to claim 1 or 2, the coolant sprayed from the spray hole or the spray nozzle through the coolant outlet formed in the side wall of the turbid coolant treatment tank is directed to the side of the belt. Chips that can be discharged out of the turbid coolant treatment tank together with chips that tend to accumulate in the device, so-called short chips that tend to accumulate in the device. There is no need to carry out cleaning maintenance by disassembly, and continuous operation can be performed for 24 hours, thereby simplifying the cleaning maintenance.

[Brief description of the drawings]

FIG. 1 is a diagram showing a use mode of a chip discharging conveyor device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a sectional view taken along line YY of FIG. 1;

FIG. 4 is an explanatory diagram showing a flow of a coolant in the first embodiment.

FIG. 5 is a view showing a usage state of a chip discharging conveyor device according to a second embodiment of the present invention.

FIG. 6 is a sectional view taken along line YY of FIG. 5;

FIG. 7 is a view showing a usage state of a conventional chip carrying conveyor device.

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

FIG. 9 is a sectional view taken along line YY of FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Chip discharge conveyor apparatus 11 ... Hinge belt 11a Chip discharge cleat 11b ... Running roller 12 ... Drive motor 13 ... Cloudy coolant treatment tank 13a Coolant outlet 13b · Slot oval hole 14 ··· Coolant flowing means 14a ··· Outlet 14b ··· Coolant flowing pipe 14c ··· Injection nozzle 14d ··· Tail disk 15 ··· Coolant piping 20 ··· Coolant recovery tank 21 ··· Chip sorting bucket 30 ・ ・ ・ Filter drum type coolant purification device 31 ・ ・ ・ Coolant purification tank 32 ・ ・ ・ Filtration drum 33 ・ ・ ・ Endless conveyor belt 34 ・ ・ ・ Backwash nozzle M ・ ・ ・ ・ Machine tool B ・・ ・ ・ Chip recovery box C ・ ・ ・ ・ Coolant s ・ ・ ・ ・ Short and small chips S ・ ・ ・・ Relatively large swarf R ・ ・ ・ ・ Swirl swarf solid

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigenori Matsuoka 5001 Ohno, Tsuchiyama-cho, Koka-gun, Shiga Prefecture Tsubakimoto Meifran Co., Ltd. F-term (reference) 3C011 BB25

Claims (3)

[Claims] An endless hinge belt provided with a chip carrying cleat on a belt conveying surface is provided with an endless hinge belt in a turbid coolant treatment tank provided therein. In the chip discharge conveyor device configured to capture and transfer only the chips on the belt transfer surface and scoop up and discharge the chips outside the turbid coolant treatment tank, the hinge belt rotates circumferentially from the lower return side to the upper transfer side. A chip flowing means provided in an inner peripheral area of the facing tail portion, wherein a coolant flowing means for flowing and removing chips flowing from a belt conveying surface on an upper conveying side and accumulated on a back surface of the belt on a lower returning side is provided. Conveyor device. 2. The coolant flow means, wherein the coolant flow means is laterally spanned in a width direction of the hinge belt and has an ejection hole for ejecting coolant toward the back surface of the belt, and branches from the coolant flow pipe. And a spray nozzle for spraying a coolant toward a side of the belt. 3. The turbid coolant treatment tank includes a side wall having a coolant outlet for excluding swarf deposited and accumulated from a belt conveyance surface on an upper conveyance side to the outside of the tank. 3. The chip discharge conveyor device according to claim 1 or 2, wherein