JP2004136415A - Liquid removing device for conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remove sufficiently liquid contained in chips or the like which are separated from liquid and conveyed and released from a conveyer for use in a coolant filter apparatus. <P>SOLUTION: An inclined slope for dropping the chips is mounted in the vicinity of a terminal end of the conveyer. The inclined slope is provided with a hopper to abut on a surface of the inclined slope, and the hopper like a movable barrier holds temporarily the chips or the like released from the conveyer. The hopper is intermittently opened with a lever, a toggle or the like mounted in a chain provided in a sprocket or a scraper at the terminal end of the conveyer, thus liquid is removed while the chips or the like is temporarily reserved on the inclined slope. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention separates and recovers a coolant liquid from a turbid coolant containing cutting chips such as cutting chips and grinding chips discharged when performing metal working such as cutting or grinding by various machine tools. The present invention relates to a conveyer drainer that can efficiently and automatically drain a chip with a conveyor having a scraper that lifts and moves the chip outside the apparatus.
[0002]
[Prior art]
Generally, in a machine tool that performs processing such as cutting and grinding metals such as iron and steel and aluminum, a so-called coolant such as water in which a cutting oil or a lubricant is dissolved is used in order to cool the tool and a material to be processed. Used. The used coolant becomes a turbid liquid containing chips discharged from the machine tool. The mixed chips are separated and collected by a filtration device, and the liquid is cleaned and regenerated and used again as a coolant.
[0003]
As the filtration device, devices having various structures and configurations such as floating filtration, precipitation filtration, and filter filtration have been put to practical use. Also, various configurations are used for a conveyor for carrying out the chips separated and collected by the filtration device to the outside of the device.
[0004]
For example, a configuration using a hinge belt type conveyor that catches a large chip such as a curled chip or a dango-shaped chip hardened by a hinge belt (Japanese Patent Laid-Open No. 2001-149713), or a conveyor chain using a scraper (scraper) is used. A configuration using a scraper-type conveyor arranged between the scrapers to scrape and remove the chips remaining at the bottom of the processing tank (Japanese Patent Application Laid-Open No. 2002-143612), a configuration including both of them (Japanese Patent Application Laid-Open No. 9-300171), etc. Has been proposed.
[0005]
[Problems to be solved by the invention]
Conventionally, any type of conveyor is carried out of the liquid in the processing tank, and is transported while draining the liquid by natural fall until the end of the conveyor.When the conveyor is inverted, it is separated and dropped into the collection box. It employs a means for recovery by collection.
[0006]
Since the chips and the like still contain liquid when separated from the conveyor, for example, in the case of a hinge belt type, the liquid adheres to the inclined surface such that the dropped chips and the like once hit the downward inclined surface. Some are configured so that they can be collected. Further, in the scraper type for scraping up and discharging, it is configured so that chips and the like detached from the conveyor are accumulated on an upward inclined surface, and liquid can be drained on the inclined surface until the chips are sequentially pushed out and dropped. I have.
[0007]
However, the above-mentioned conventional means for draining liquid from chips or the like can complete draining more than enough by increasing the distance or transport time from the liquid surface of the processing tank to the end of the conveyor. However, due to restrictions on the installation location of the apparatus and the operating efficiency, such as an increase in the size of the apparatus or a decrease in the efficiency of separation and recovery, it was not possible to sufficiently remove liquid such as chips.
[0008]
The present invention provides, for example, a drainer capable of sufficiently removing liquid contained in chips and the like separated and conveyed from liquid and separated from the conveyor in a conveyor used for a coolant filtration device. The purpose is.
[0009]
[Means for Solving the Problems]
The present inventors have studied variously for the purpose of a draining device that can sufficiently drain liquid from chips and the like after being separated from the conveyor without changing the configuration of the filtering device and the conveyor used therein. As a result, a movable weir in which a slope for dropping chips is provided near the end of the conveyor, and a hopper is formed in contact with the inclined slope surface to temporarily hold chips and the like after being separated from the conveyor. A hopper is provided, and the hopper is intermittently opened and closed by a tog, lever, etc. provided on the chain at the end of the conveyor, for example, on a sprocket or scraper, so that drainage can be performed while temporarily holding on the inclined slope surface. The present inventors have found that the present invention can be performed and the object can be achieved, and thus the present invention has been completed.
[0010]
That is, according to the present invention, at the end outside the liquid of an endless conveyor having a scraper for scraping and recovering an object to be separated from the liquid, the object to be separated is scraped from the scraper to an inclined discharge passage end for scraping and moving the object to be separated. It has a collection shelf for detachment and a drop slope connected to the collection shelf for collecting and dropping the separated object, and is separated from the plate surface in contact with or close to the plate surface of the fall slope. A hopper portion forming a pool portion of the object is disposed so as to be able to contact and separate from the slope plate surface, and has interlocking means for intermittently contacting and separating the hopper portion in conjunction with the rotating body at the end of the conveyor. Conveyor drainer.
[0011]
Further, the present invention has a falling slope that collides with an object separated and dropped from the conveyor at an end portion outside the liquid of an endless conveyor having a hinge belt for placing and recovering the object from the liquid, A hopper portion that abuts or approaches the plate surface of the falling slope and forms a pool portion of the object to be separated with the plate surface is disposed so as to be able to contact and separate from the slope plate surface, and is provided on the rotating body at the end of the conveyor. A liquid draining device for a conveyor, comprising interlocking means for intermittently contacting and separating the hopper section in interlocking manner.
[0012]
Further, the present invention provides the above-mentioned configuration,
The hopper portion comprises a U-shaped member contacting the plate surface of the falling slope and an arm connected thereto, and an arm for supporting and supporting the U-shaped member constantly contacting or approaching the falling slope is a conveyor of the interlocking means. A configuration having a mechanical mechanism in which the hopper is released by being pushed by one or more dogs attached to the chain,
A configuration in which the hopper section has an adjustment mechanism for varying the contact distance or proximity distance of the member abutting on the plate surface of the falling slope with the plate surface,
A filtration apparatus comprising a horizontal processing tank and an inclined discharge section connected to one of the horizontal processing tanks to provide an inclined discharge path, wherein the filtration drum is supported at the connection with the tank and is driven to rotate by a conveyor chain. We also propose a drainage device for water.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
A drainer according to the present invention will be described based on a configuration example shown in FIG. The conveyor 10 has a configuration in which scrapers 12 are arranged at predetermined intervals between conveyor chains 11, and the scrapers 12 are opposed to the inclined discharge passage 5 for scraping and moving an object to be separated with a required interval.
[0014]
The conveyor 10 is inverted by a sprocket 13 pivotally supported at the upper end, and the inclined discharge passage 5 ends below the sprocket 13, so that the separated object is separated from the scraper 12. And connected to a falling slope 7 having a downward slope.
[0015]
The hopper section 20 is configured such that a U-shaped member 21 that abuts on the falling slope 7 and forms a pool of the separated object with the inclined surface is pivotally supported by a pair of arms 22. It is supported by a support portion 23 provided above the sprocket 13.
[0016]
The hopper section 20 is configured to always contact the falling slope 7 by its own weight of the U-shaped member 21, and is set so as to push up the arm 22 when the dog 14 provided on the conveyor chain 11 is inverted by the sprocket 13. Therefore, the opening and closing are intermittently performed according to the interval between the dogs 14 arranged on the conveyor chain 11.
[0017]
The separated material such as chips, which has been scraped up and conveyed by the scraper 12 on the inclined discharge passage 5, is separated from the scraper 12 at the collection shelf 6 and temporarily stopped there to be drained on a gentle inclined surface. The object is moved by being pushed by the object to be separated, and then slides down the falling slope 7 and is held in the hopper portion 20, where the liquid is drained again. The liquid drained in the hopper 20 is returned to the inclined discharge passage 5 by the rewinding portion 8 at the end of the falling slope 7, and returned to the inclined discharge passage 5 again via the liquid receiver 9.
[0018]
The object to be separated, which has been held down in the hopper 20 by sliding down the falling slope 7, is pushed up by the arm 22 when the dog 14 provided on the conveyor chain 11 is periodically inverted by the sprocket 13, so that the U-shaped member is formed. 21 jumps up, separates from the falling slope 7 and falls, and is stored in, for example, a collection box disposed immediately below.
[0019]
In the present invention, the hopper section includes the above-described arm and the U-shaped member according to the size and shape of the object to be processed, the type and form of the conveyor, and the position and form of the falling slope. In addition, various configurations can be adopted.
[0020]
The hopper section having the arm and the U-shaped member shown in FIG. 1 is configured such that, when the conveyor 10 rotates clockwise in the opposite direction and conveys an object by, for example, a hinge belt type, when the sprocket 13 reverses the falling slope, Although the object to be separated is dropped in seven directions, it can be applied without changing the basic structure of the hopper part by changing the positional relationship of each part.
[0021]
The hopper section 20 has been described with respect to the case where the U-shaped member 21 abuts on the falling slope 7. However, the hopper section 20 does not necessarily need to abut on the falling slope 7, for example, by providing a gap of 1 mm or less or several mm and making them close to each other to open and close. There can be provided functions such as no contact sound and improved liquid flow. Therefore, as shown in the embodiment, an adjusting mechanism for adjusting the position of the arm 22 supported by the support portion 23 with an adjusting screw or the like can be provided. Further, the hopper section 20 can be left open temporarily or when required.
[0022]
In the present invention, as the interlocking means for intermittently contacting and separating the hopper section in conjunction with the rotating body at the end of the conveyor, an arm for pivotally supporting the U-shaped member contacting the above-mentioned constantly falling slope is interlocked. In addition to a mechanical mechanism that is pushed by one or more dogs attached to the conveyor chain of the means to release the hopper, a sprocket or the like for the drive system of the conveyor is used in accordance with the configuration of the support and shaft support of the hopper. A known intermittent rotary motion mechanism that is combined with a cam, a lever, a gear, a crank, or the like can be appropriately employed.
[0023]
【Example】
As shown in FIG. 3, the filtration device 1 includes a horizontal processing tank 2 and an inclined discharge section 3 connected to one of the horizontal processing tanks 2 and provided with an inclined discharge passage 5. A filtration drum 30 is connected to the processing tank 2. A conveyer 10 having a structure driven to rotate by a chain 11 is used, and the conveyor draining device of the present invention is provided at the end of the inclined discharge section 2.
[0024]
In the horizontal processing tank 2, the sprocket 15 of the conveyor 10 is arranged at the left end of FIG. 2, the filter drum 30 is pivotally supported at the right end of the processing tank 2, and the sprocket 13 shown in FIG. The filter drum 30 is also provided with a sprocket 30a, and these three rotating bodies are rotationally driven by the chain 11 of the conveyor 10. Here, a motor 16 as a power source is connected to the shaft 13a of the sprocket 13 at the upper end of the inclined discharge section 3 via a gear box.
[0025]
The filter drum 30 is rotatably supported via a bearing 32 on a shaft 31 fixed and arranged in the width direction of the horizontal processing tank 2, and passes through a filter cloth 33 provided on a drum-like outer peripheral surface of the drum. It has a function of recovering the clean liquid entered from the drum end face 34 through the outlet 35 provided in the side wall of the horizontal processing tank 2. The shaft 31 is provided with a jet port 36 so that a cleaning liquid for back-washing the filter cloth 33 can be jetted from the inside of the shaft 31.
[0026]
Therefore, the filter cloth 33 is fixed to the filter drum 30 so that there is no backflow of the filtrate or the infiltration of the unfiltered liquid, and a sealing mechanism is arranged between the drum end face 34 of the rotating filter drum 30 and the outlet 35 of the side wall. There is a need to. Here, a flat belt 37 is tightly wound and fixed from above the filter cloth 33 on the outer peripheral portion near the end face of the filter drum 30, and a V-ring rubber 38 is attached to the seal mechanism by the filter ring 30 on the rotating side. A configuration is adopted in which it is fixed to the outer end and slidably contacts the outer peripheral surface of the outlet 35 of the fixed side wall.
[0027]
When the turbid coolant containing chips discharged from the machine tool in the cutting process of aluminum or the like is put into the horizontal processing tank 2 of the filtration device 1, the floating chips move to the scraper 12 which moves by return. The swarf which is agitated and settles down and settles on the tank bottom 4 is scraped and conveyed by the scraper 12, ascends the inclined discharge passage 5, reaches the collection shelf 6, falls in the direction of the falling slope 7, and falls into the hopper 20. In this case, as described in detail with reference to FIG. 1, after the liquid is sufficiently drained from the chips separated and collected from the coolant, the chips are dropped and collected in a collection box outside the apparatus.
[0028]
In the embodiment, the support portion 23 of the hopper portion 20 is configured to pivotally support the left end of the arm 22 in the figure and turn downward by its own weight of the U-shaped member 21 to constantly contact the falling slope 7. Further, a contact plate in the direction perpendicular to the upper side of the arm 22 near the shaft support is projected, and the tip of the adjusting screw 24 comes into contact with the contact plate, so that the contact distance of the U-shaped member 21 to the falling slope 7 can be adjusted. The shape member 21 is adjusted so as to approach the falling slope 7 with a slight gap. Accordingly, there is no contact sound when the hopper unit 20 is opened and closed, and the liquid flow is improved.
[0029]
【The invention's effect】
According to the present invention, in the conveyor used for the use of the coolant filtration device, by providing the inclined slope and the hopper portion having a simple structure, the conveyor is separated from the liquid, separated from the conveyor, and then included in the chips and the like. Liquid can be sufficiently collected and recovered.
[0030]
In a conventional filtration device, chips and the like separated and collected are constantly discharged while the device is in operation, so the collection box for dropping and collecting outside the device is full, and when replacing with an empty collection box, Although it was necessary to stop the filtering device, as shown in the embodiment of the present invention, by always closing the hopper, there is an advantage that the work of replacing the empty collecting box can be performed without stopping the filtering device. .
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a configuration of a liquid draining device according to the present invention.
FIG. 2 is an explanatory view of the liquid draining device of FIG. 1 as viewed from a discharge side of a conveyor.
FIG. 3 is an explanatory diagram showing a configuration of a coolant filtering device equipped with a liquid draining device according to the present invention.
FIG. 4 is an explanatory diagram showing a configuration of a filtration drum used in the filtration device of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Filtration processing apparatus 2 Horizontal processing tank 3 Inclined discharge part 4 Tank bottom 5 Inclined discharge passage 6 Collection shelf 7 Drop slope 8 Rewind part 9 Liquid receiver 10 Conveyor 11 Conveyor chain 12 Scrapers 13, 15, 30a Sprockets 13a, 31 Shaft 14 Dog 16 Motor 20 Hopper part 21 U-shaped member 22 Arm 23 Support part 24 Adjustment screw 30 Filtration drum 32 Bearing 33 Filter cloth 34 Drum end face 35 Outlet port 36 Injection port 37 Flat belt 38 V-ring rubber

Claims (5)

At the end outside the liquid of the endless conveyor having a scraper for scraping and collecting the object from the liquid of the filtration device, the object to be separated is separated from the scraper at the end of the inclined discharge passage for scraping and moving the object. And a falling slope connected to the collecting shelf for collecting and dropping the object to be separated. Conveyor draining device having interlocking means for intermittently contacting and separating the hopper in conjunction with the rotating body at the end of the conveyor by disposing the hopper forming the reservoir portion so as to be able to contact and separate from the slope plate surface . The endless conveyor having a hinge belt for placing and recovering an object to be separated from the liquid in the filtration treatment device has a falling slope that collides with the object separated and dropped from the conveyor at the terminal end outside the liquid. A hopper section that abuts or approaches the slope plate surface and forms a pool for the separation object between the slope and the plate surface is disposed so as to be able to contact and separate from the slope plate surface, and is interlocked with the rotating body at the end of the conveyor. Conveyor drainer with interlocking means for intermittently contacting and separating the hopper. The hopper portion is composed of a U-shaped member that abuts against the plate surface of the falling slope and an arm connected thereto, and an arm that supports and supports the U-shaped member that is always in contact with or close to the falling slope is a conveyor of the interlocking means. The conveyer drainer according to claim 1 or 2, wherein the hopper is released by being pushed by one or more dogs attached to the chain. 3. The conveyer drainer according to claim 1, wherein the hopper has an adjusting mechanism for varying a contact distance or a proximity distance of a member contacting the plate surface of the falling slope. The filtration device comprises a horizontal processing tank and an inclined discharge section provided with an inclined discharge passage connected to one of the horizontal processing tanks. 3. The conveyer drainer according to claim 1 or 2.

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