JPH03172228A - Chip conveyer - Google Patents

Abstract

PURPOSE:To improve removal of liquid, when a chip is conveyed from a cutting fluid tank, by forming a V-shaped conveying surface of non-magnetic material in a chip conveying path and conveying the chip, being attracted by magnetic force, along the conveying surface while vibrating the chip conveying path. CONSTITUTION:In a chip conveying path 4, conveying surfaces 4a, 4b are formed in V-shape by bending a non-magnetic material in the bottom part of which a liquid groove 5, for collecting separated cutting fluid W to be returned to a cutting fluid tank 1, is provided. A magnet conveying means K is arranged in a housing 3 being respectively opposed to the conveying surfaces 4a, 4b of the chip conveying path 4, and a chip C is attracted by magnetic force and conveyed along the conveying surfaces 4a, 4b. A cam 55 is brought into contact with a bracket 52, provided in a central part of the chip conveying path 4, and rotated by driving a motor 53 to vibrate the chip conveying path 4.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention temporarily stores magnetic chips discharged from a machine tool together with cutting fluid in a cutting fluid tank, and separates the chips from this cutting fluid tank. This invention relates to a chip conveying device that discharges the cutting fluid to the outside of the tank.

[Prior Art] For example, magnetic chips discharged from a machine tool may be temporarily stored in a cutting fluid tank together with a cutting fluid that cools a cutting section. In this case, the chips immersed in the cutting fluid tank may be separated from the cutting fluid and transported out of the cutting fluid tank, and the chips may be reused by separating the chips from the cutting fluid using a centrifuge or the like. In addition, the cutting fluid in the cutting fluid tank or the cutting fluid separated by a centrifuge or the like may be circulated back to the machine tool side and used for cooling the cutting part or the like.

[ml that invention tries to solve! II! ] As a chip conveying device that separates the chips immersed in the cutting fluid tank from the cutting fluid and carries them out of the cutting fluid tank, it is conceivable to transport the chips using, for example, magnetic adsorption. In particular, it is required to transport chips in large quantities. Furthermore, since the chips will be reused, it is necessary to ensure that the cutting fluid does not adhere to them as much as possible when discharging them from the cutting fluid tank, and since the cutting fluid is also reused, removing it from the cutting fluid tank should be prevented as much as possible. It is extremely important to do so.

A first object of the present invention is to provide a chip conveying device that can effectively drain the cutting fluid when transporting the chip from the cutting fluid tank.

A second object of the present invention is to provide a chip transport device that can transport a large amount of chips at a time when transporting chips from a cutting fluid tank.

A third object of the present invention is to provide a chip transport device that has a simple structure that utilizes the magnetic force of a magnet and is capable of transporting chips.

[Means for Solving the Problems] In order to solve the above problems, the invention of a chip conveying device according to claim 1 is provided with a magnetic conveyor for carrying chips immersed in a cutting fluid tank out of the cutting fluid tank, The conveyor is arranged such that its chip inlet part is located in the cutting fluid tank and its chip outlet part is located outside the cutting fluid tank, and a V-shaped transport surface made of non-magnetic material is formed in the chip transport path of the magnetic conveyor. The present invention is characterized in that a magnetic conveyance means for attracting and conveying chips by magnetic force is disposed along each conveyance surface of the chip conveyance path, and further includes a vibration means for vibrating the chip conveyance path.

Further, the invention according to claim 2 is characterized by comprising a detection sensor that detects the chips being transported, and a control device that controls the vibrating means using detection information from the detection sensor.

Further, the invention according to claim 3 is characterized in that a liquid groove is provided at the bottom of the chip conveyance path to collect the cutting fluid adhering to the chip and return it to the cutting fluid tank.

Further, the invention as set forth in claim 4 is characterized in that a curved portion is formed at the upper end of the chip conveyance path, and the curved portion separates the chips from the magnetic field of the magnet conveyance means.

Further, the invention according to claim 5 is characterized in that the chip transport path is liquid-tightly attached to a housing, and the magnet transport means is disposed within the housing close to the back side of the transport surface of the chip transport path. It is said that

Further, the invention according to claim 6 is characterized in that the magnet conveying means is constituted by an endless chain having a magnet.

Furthermore, the chip conveying device of the invention as set forth in claim 7 is provided with a magnetic conveyor for transporting the chips immersed in the cutting fluid tank out of the cutting fluid tank, and this magnetic conveyor has a chip carrying portion that is in the cutting fluid tank. The conveyance section is arranged so as to be located outside the cutting fluid tank, and a V-shaped conveyance surface made of a non-magnetic material is formed on the chip conveyance path of the magnetic conveyor, and a V-shaped conveyance surface made of a non-magnetic material is formed on the bottom of the chip conveyance path so that the chip adheres to the chip. It is characterized by the provision of a liquid groove that collects the cutting fluid and returns it to the cutting fluid tank, and further includes a magnetic conveyance means that attracts and conveys chips by magnetic force along each conveyance surface of the chip conveyance path. .

[Function] In the chip conveying device of the present invention, the chip carrying part of the magnetic conveyor is arranged in the cutting fluid tank and the chip carrying part is located outside the cutting fluid tank, and the chips in the cutting fluid tank are transported by the magnetic conveying means. The chips are attracted and transported on the transport surface of a V-shaped chip transport path made of non-magnetic material, and are discharged from the cutting fluid tank to the outside. At this time, the chip conveyance path is vibrated, so when the cutting fluid attached to the chip is conveyed on the chip conveyance path, it flows down along the figure 7-shaped conveyance surface and is returned to the cutting fluid tank. It is discharged from the tank to the outside.

Therefore, the chips can be discharged from the cutting fluid tank with as little cutting fluid as possible adhering to them, which is suitable for reusing the chips, and it is possible to prevent cutting fluid from being carried out from the cutting fluid tank as much as possible. It saves cutting fluid.

In addition, a detection sensor detects the chips being conveyed, and the control device controls the vibration means using the detection information from this detection sensor, and stops vibration of the chip conveyance path when no chips are conveyed, reducing power consumption. do.

Further, when a liquid groove is formed at the bottom of the chip conveyance path, the cutting fluid flowing down the conveyance surface is collected in the liquid groove, and the cutting liquid is effectively returned to the cutting liquid tank by this liquid groove.

In addition, a magnetic conveyance means that conveys chips by using magnetic adsorption is used to convey the chips, and the chips are attracted and conveyed on the figure 7-shaped conveyance surface of the chip conveyance path of the magnetic conveyor. The suction area is wide and a larger amount of chips can be transported at once.

Furthermore, a curved part is formed at the upper end of the chip conveyance path,
This curved portion allows the chip to be separated from the magnetic field of the magnet transport means.

In addition, the chip conveyance path is liquid-tightly attached to the housing.
Since the magnet conveyance means is placed in this housing close to the back side of the conveyance surface of the chip conveyance path, the cutting fluid will not adhere to the magnet conveyance means, and the cutting fluid will not rust or cause it to leak outside the cutting fluid tank. It can prevent you from getting wet.

Furthermore, the magnetic conveyance means is composed of an endless chain having a magnet, and the drive means can be easily controlled and chips can be conveyed continuously.

[Example] Hereinafter, an example of the present invention will be described in detail based on the accompanying drawings.

Figure 1 is a plan view of the chip transport device, Figure 2 is the I of Figure 1.
FIG. 3 is a sectional view taken along line II--III in FIG. 1, and FIG. 4 is a perspective view showing the state in which the magnet is attached.

In the figure, reference numeral 1 denotes a cutting fluid tank disposed below the machine tool, and this cutting fluid tank 1 stores cutting fluid W and chips C discharged from the machine tool. This cutting fluid tank 1 is equipped with a magnetic conveyor 2 for transporting the chips C immersed in the cutting fluid W out of the cutting fluid tank 1. This magnetic conveyor 2 has a chip loading section 2a with a cutting fluid tank 1.
The chip carrying out section 2b is disposed so as to be located outside the cutting fluid tank 1 in the cutting fluid W, and a container 15 for storing chips C is placed below the chip carrying out section 2b.

A chip conveyance path 4 is provided in the housing 3 of the magnetic conveyor 2.
The housing 3 is constructed by welding an upper plate 3b to both sides of a lower plate 3a. The lower plate 3m and the upper plate 3b of the housing 3 are formed of, for example, a thin stainless steel plate that is a magnetically permeable member, and the side plate 3c is welded to the lower end of the lower plate 3a.
This housing 3 is formed liquid-tight to prevent cutting fluid W from entering inside.

The chip conveying path 4 is formed by bending a non-magnetic material to form conveying surfaces 4a and 4b.
is formed in a V-shape, and the cutting fluid W separated from the chips C is collected at the bottom of this chip conveyance path 4 to form a cutting fluid tank 1.
A liquid groove 5 is provided for returning the liquid to. This chip conveyance path 4 is attached so as to cover the opening formed by the upper plate 3b of the housing 3, and the chip conveyance path 4 and the upper plate 3b are connected in a liquid-tight manner.

The V-shaped bending angle of the conveying surfaces 4a and 4b of the chip conveying path 4 is approximately 80 to 120 degrees, especially around 90 degrees, in terms of conveying efficiency and cutting fluid W adhering to the chips C. This is preferable because when a large amount of chips C are dropped onto the transport path 4, the transport surfaces 4a and 4b can pick up and transport these chips C, but it is not necessarily limited to these ranges. .

A curved portion 4C is formed at the upper end of the chip conveyance path 4, and the curved portion 4C separates the chip C from the magnetic field of the magnet conveyance means and causes it to fall into the container 15. The curved portion 4C separates from the chip conveyance path 4.
Therefore, the structure is not complicated and the number of parts of the magnetic conveyor 2 can be reduced.

The magnetic conveying means includes a magnet disposed inside the housing 3 to face the conveying surfaces 4a and 4b of the chip conveying path 4, respectively, so that the chips C are attracted and conveyed by magnetic force along the conveying surfaces 4a and 4b. ing.

Drive motors M are each fixed to the upper end of the upper plate 3b of the housing 3, and a rotation axis m of the drive motor M passes through the upper plate 3b. A transmission shaft 6 is connected to the tip of the rotation shaft m of the drive motor M, and sprockets 7 are fixed to each of the transmission shafts 6.

Furthermore, bearings 8 are provided on the inner surface of the lower end portion of the upper plate 3b of the housing 3, and a driven shaft 9 is rotatably provided in each of the bearings 8. A sprocket 10 having the same diameter as the sprocket 7 is fixed to the tip of the driven shaft 9, and a roller chain 11 is stretched between the sprocket 10 and the sprocket 7, respectively. Magnetic locking devices 12 are attached to each roller chain 11 at regular intervals over the entire circumference, and magnets 13 are continuously attached to the roller chain 11 via the magnetic locking devices 12.

Furthermore, a guide plate 14 is provided on the upper plate 3b of the housing 3 to face the back surface of the conveyance surface 4m and 4b of the chip conveyance path 4.
is provided, and this guide plate 14 maintains a constant distance between the magnet 13 and the chip transport path 4. Providing the guide plate 14 for the magnet 13 prevents the magnet 13 from sagging during rotation, thereby ensuring a constant magnetic force of the magnet 13 exerted on the chip C during rotation.

Although the chip conveyance path 4 is made of stainless steel, it may be made of other non-magnetic material such as hard aluminum.

Further, the liquid groove 5 formed in the chip conveyance path 4 is not limited to a box-shaped groove in cross-section as described above, but for example,
It can also be formed into a groove shaped like a letter or a letter V.

Further, in this embodiment, the roller chain 11 is used as the magnetic conveyance means K, but it may also be a simple lobe, a flat belt, or a V-belt, and these may be similar to the roller chain 11 shown in this embodiment. The present invention is not limited to a magnet conveying means in which magnets 13 are continuously attached around the entire circumference, but it may be one in which one or several magnets 13 are discontinuously attached to this roller chain 11.

In addition, the magnet conveying means to which these magnets 13 are discontinuously attached not only rotates the roller chain 11 in a single direction, but also drives both drive motors M by switching between forward and reverse directions at regular intervals to transfer the chips. The one or several magnets 1 from the adsorption position of C to the drop ejection position
3 may be reciprocated and the chip C may be transported intermittently by a magnetic transport means.

In addition, the magnetic conveyance means is not limited to an endless belt-shaped conveyor, but may include, for example, a magnetic screw conveyor, a nut structure having a long threaded shaft connected to the drive unit M, and one or more of the above-mentioned conveyors. 13 magnets
There are also conveyors that reciprocate from the adsorption position of the chips C to the drop discharge position to convey the chips C intermittently, and conveyors that employ a cylinder mechanism as the drive mechanism for reciprocating one or more magnets 13. Available.

Further, the two left and right magnet conveyance means K can be driven by a single drive motor M via a power transmission member such as a gear (not shown).

Furthermore, in place of the curved part 4c, a suction roller (not shown) consisting of an outer cylinder made of a magnetic material and an inner cylinder to which a magnet piece is attached may be used at the separation part of the chip C after being conveyed.

In this embodiment, the chip conveyance path 4 is supported by the upper plate 3b of the housing 3 via an elastic member 50 so that it can vibrate. For example, rubber or a spring is used for this elastic member 50. If rubber is used for the elastic member 50, the chip conveyance path 4 can be supported liquid-tightly on the upper plate 3b of the housing 3, and the cutting fluid can be kept in the housing 3. This is preferable because it prevents the intrusion of

The chip conveyance path 4 can be vibrated by a vibrating means 51. That is, a bracket 52 is provided at the center of the chip conveyance path 4, and an output shaft 54 of a motor 53 is connected to the bracket 52.
A cam 55 fixed to the cam 55 is brought into contact with the cam 55, and the cam 55 is rotated by the drive of the motor 53 to vibrate the chip conveyance path 4.

Curved portion 4C that separates chips C from chip transport path 4
is provided with a detection sensor 56 for detecting the chip C. Information from this detection sensor 56 is input to the control device 5, and if the chip C is not detected for a predetermined time, then the
Stops driving.

Therefore, when the chip C is transported, the chip transport path 4 vibrates, so that the cutting fluid adhering to the chip C can be removed more reliably, and when the chip C is not transported, the chip transport path 4 vibrates. Power consumption is saved by stopping vibration.

Further, although the vibration means 51 is composed of a motor and a cam, the vibration means 51 is not limited to this, and may be vibrated by turning on and off a solenoid, for example.

Furthermore, the chip conveyance path 4 can vibrate in the vertical direction or in the horizontal direction, and is not particularly limited to the vibration direction.

Next, the operation of this embodiment will be explained.

By turning on a drive switch (not shown), the drive motor M is driven, and thereby the roller chains 11 each having a magnet 13 stretched thereon rotate in opposite directions so as to be able to transport the chip C in the transport direction.

Chips C discharged together with the cutting fluid W from a machine tool (not shown) are stored in a cutting fluid tank 1, and the chips C in this cutting fluid tank 1 are transferred to the chip transport path 4 by the magnetic force of the magnet 13 in the magnet transport means. are collected on the conveying surfaces 4a, 4b at the lower end of.

As a result, the chip C is attracted by the magnetic force of the magnet 13 disposed below the transport surfaces 4m and 4b of the inclined chip transport path 4 and is transported upward, thereby separating the chip C and the cutting fluid W. When this chip C is conveyed on the conveyance surfaces 4a and 4b, the cutting fluid W drips down on the conveyance surfaces 4m and 4b and is collected in the liquid groove 5, and is returned into the cutting liquid tank 1 by this liquid groove 5.

In this way, the drained chips C reach the upper end of the chip transport path 4, slide on the curved part 4C, gradually increasing the distance from the magnet 13, and finally leave the magnetic field and enter the container 15. Fall. Therefore, when the chips C are discharged from the cutting fluid tank 1, they can be discharged in a state where the cutting fluid W does not adhere as much as possible, which is suitable for reusing the chips C, and the cutting fluid W from the cutting fluid tank 1 is Taking out can be prevented as much as possible, and cutting fluid W can be saved.

In addition, a magnetic conveyor is used to convey the chips by using magnetic adsorption to convey the chips, and the chip conveyance path 4 of the magnetic conveyor 2 is formed in a V-shape with a non-magnetic material. The C adsorption surface area is large, and a larger amount of chips C can be transported at one time.

FIG. 5 is a sectional view of another embodiment of the chip conveying device,
In this embodiment, members denoted by the same reference numerals as those in FIGS. 1 to 4 have the same structure, and therefore, the numerals ``a'' and ``a'' are omitted.

In this embodiment, the magnetic conveyor 2 itself is connected to the base 60.
via an elastic member 61 so that it can vibrate. For example, rubber or a spring is used for this elastic member 61, and a spring is used for the elastic member 61.

Lower plate 3a of housing 3 of magnet conveyor 2
The cam 55 of the vibrating means 51 is brought into contact with the central part, and the motor 5
3, the cam 55 rotates and the magnetic conveyor 2
It vibrates itself, which causes the chip transport path 4 to vibrate.

[Effects of the Invention] As described above, the invention of the chip conveying device according to claim 1 is provided with a magnetic conveyor for transporting chips immersed in a cutting fluid tank out of the cutting fluid tank, and this magnetic conveyor has a chip carrying section thereof. is arranged in the cutting fluid tank, and the chip conveyance section is located outside the cutting fluid tank, and the chip transport path &: of the magnetic conveyor is formed of a non-magnetic material and has a V-shaped transport surface. Magnetic conveyance means for attracting and conveying chips by magnetic force are provided along each conveyance surface of the path, and vibration means for vibrating the chip conveyance path is further provided, so that the chip conveyance path is vibrated and the chips are When the attached cutting fluid is conveyed on the chip conveyance path, V
The chips flow down along the letter-shaped conveyance surface and are returned to the cutting fluid tank, and the chips are discharged from the cutting fluid tank to the outside. Therefore, the chips can be discharged from the cutting fluid tank with as little cutting fluid as possible adhering to them, which is suitable for reusing the chips, and it is possible to prevent cutting fluid from being carried out from the cutting fluid tank as much as possible. It saves cutting fluid.

Further, the invention according to claim 2 includes a detection sensor for detecting the chips to be transported, and a flJ control device for controlling the vibrating means using detection information from the detection sensor, so that as soon as the chips are not transported, can stop the vibration of the chip transport path and reduce power consumption.

Further, the invention according to claim 3 provides a liquid groove at the bottom of the chip conveyance path that collects the cutting fluid adhering to the chip and returns it to the cutting fluid tank. This liquid groove allows the cutting liquid to be effectively returned to the cutting liquid tank.

Further, in the invention as set forth in claim 4, a curved portion is formed at the upper end of the chip conveyance path, and the curved portion separates the chips from the magnetic field of the magnet conveyance means. It can be easily separated from the magnetic field of the magnet conveying means.

Further, in the invention as set forth in claim 5, the chip conveyance path is liquid-tightly attached to a housing, and the magnet conveyance means is disposed in the housing close to the back side of the conveyance surface of the chip conveyance path. Since the cutting fluid does not adhere to the conveying means, it is possible to prevent the cutting fluid from getting stuck or leaking to the outside of the cutting fluid tank.

Further, in the invention as set forth in claim 6, since the magnet conveying means is constituted by an endless chain having a magnet, the driving means can be easily controlled and chips can be conveyed continuously.

Furthermore, the invention of the chip conveying device described in claim F is provided with a magnetic conveyor for transporting the chips immersed in the cutting fluid tank to the outside of the cutting fluid tank, and this magnetic conveyor has a chip carrying part that is in the cutting fluid tank. The conveyance section is arranged so as to be located outside the cutting fluid tank, and a V-shaped conveyance surface made of a non-magnetic material is formed on the chip conveyance path of the magnetic conveyor, and a V-shaped conveyance surface made of a non-magnetic material is formed on the bottom of the chip conveyance path so that the chip adheres to the chip. We have provided a liquid groove that collects the cutting fluid and returns it to the cutting fluid tank, and we have also installed a magnetic transport means that uses magnetic force to attract and transport chips along each transport surface of the chip transport path. A large amount of chips can be discharged from the cutting fluid tank at once without any adhesion, making it suitable for reusing chips. It saves liquid.

[Brief explanation of the drawing]

Figure 1 is a plan view of the chip transport device, Figure 2 is the I of Figure 1.
I-11 sectional view, Figure 3 is a ■-■■ sectional view of Figure 741, Figure 4 is a perspective view showing the state of magnet attachment,
The figure is a sectional view of another embodiment of the chip transport device. In the figure, reference numeral 1 is a cutting fluid tank, 2 is a magnetic conveyor, 3 is a housing, 4 is a chip conveyance path, 5 is a liquid groove, 1 is a magnet conveyance means, and M is a drive motor. 11 Figure (1) Figure Middle East Figure 1 is corrected as shown in the attached sheet. As of January 16, 1990

Claims (1)

[Claims] 1. A magnetic conveyor is provided for transporting chips immersed in a cutting fluid tank out of the cutting fluid tank, and this magnetic conveyor has a chip loading section inside the cutting fluid tank and a chip exiting section inside the cutting fluid tank. A V-shaped conveyance surface made of non-magnetic material is formed on the chip conveyance path of the magnetic conveyor, and chips are attracted by magnetic force along each conveyance surface of the chip conveyance path. What is claimed is: 1. A chip conveying device, comprising: a magnetic conveying means for conveying the chip; and a vibrating means for vibrating the chip conveying path. 2. The chip transport device according to claim 1, further comprising a detection sensor that detects the chip to be transported, and a control device that controls the vibration means using detection information from the detection sensor. 3. The chip conveying device according to claim 1, wherein a liquid groove is provided at the bottom of the chip conveying path to collect the cutting fluid adhering to the chips and return it to the cutting fluid tank. 4. A curved portion is formed at the upper end of the chip conveyance path,
2. The chip transport device according to claim 1, wherein the curved portion separates the chip from the magnetic field of the magnet transport means. 5. The chip according to claim 1, wherein the chip transport path is liquid-tightly attached to a housing, and the magnetic transport means is disposed within the housing close to the back side of the transport surface of the chip transport path. Conveyance device. 6. Claims 1 and 4, wherein the magnetic conveyance means is constituted by an endless chain having a magnet.
, 5. The chip conveyance device according to any one of . 7. A magnetic conveyor is provided for transporting the chips immersed in the cutting fluid tank to the outside of the cutting fluid tank, and the magnetic conveyor is arranged such that the chip loading section is located in the cutting fluid tank and the chip discharging section is located outside the cutting fluid tank. A V-shaped conveyance surface made of non-magnetic material is formed in the chip conveyance path of the magnetic conveyor, and a liquid is provided at the bottom of the chip conveyance path to collect the cutting fluid adhering to the chips and return it to the cutting fluid tank. 1. A chip conveyance device, characterized in that a groove is provided, and a magnetic conveyance means for attracting and conveying chips by magnetic force is provided along each conveyance surface of a chip conveyance path.