JP2759318B2 - Magnetic plate separator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic plate separating tool for use in separating a large number of magnetic plates such as iron plates and steel plates one by one.

[0002]

2. Description of the Related Art When various products are processed from a metal plate by a press machine or a shearing machine, a large number of metal plates as materials must be stacked and taken out one by one. However, the metal plates often have oil or the like adhered thereto and are in close contact with each other, so that it may not be possible to easily take out each metal plate as it is. In such a case, it is almost impossible to supply a metal plate to a press machine or the like one by one using a robot, for example, which makes the press work difficult.

For this reason, it has been proposed to adopt a suction cup, for example, to perform automatic feeding by adsorbing only the uppermost metal plate which is stacked in large numbers, but the second metal plate has a large amount of oil and grease. May not be able to be separated from the metal plate.
Also, if one metal plate is large and heavy,
The suction and lifting by the suction cup may not be performed reliably.

In order to solve this problem, a magnetic plate separator 40 as shown in FIGS. 9 and 10 has been developed. This conventional magnetic plate separating tool 40 is a device in which permanent magnets are put in a storage box attached to the support plate 21 side of a lift 20 in which a large number of metal plates are stocked, and a large number of stacked metal plates, that is, iron plates It is used by arranging a plurality of magnetic plates 30 on the end side of a magnetic plate 30 such as a steel plate.

As shown in FIG. 8, when the conventional magnetic plate separating device 40 is arranged on the side of a large number of stacked magnetic plates 30, each magnetic plate 30 is magnetized and magnetized. The polarity of each magnetic plate 30 is the same. For this reason, each magnetized magnetic plate 30 is lifted by the repulsive action of the same polarity, and a space is formed between each magnetic plate 30 in which, for example, a transfer arm of a robot can be inserted. It becomes. Therefore, the conventional magnetic plate separating device 40 shown in FIGS. 9 and 10 has a metal plate 30 such as an iron plate or a steel plate.
In this case, it is possible to greatly facilitate taking out of each magnetic plate 30 one by one.

However, since the conventional magnetic plate separator 40 has a structure in which a permanent magnet is sealed in a storage box, the size and weight of each magnetic plate 30 are reduced. They could not cope with the change. That is, the distance between the first and second magnetic plates 30 shown in FIG. 8 is proportional to the strength of the magnetic field of the permanent magnet and inversely proportional to the weight (gravity) of each magnetic plate 30. When trying to lift a heavy magnetic plate 30 using the same magnetic plate separator 40, the distance between the magnetic plate 30 and the heavy magnetic plate 30 is reduced, and the transfer arm of the robot is inserted into the space. You will not be able to do it.

For this reason, in the conventional magnetic plate separator 40, the gap between the magnetic plates 30 is fixed so that the transfer arm of the robot can be inserted, and the heavy magnetic plate 30 is targeted. In this case, a large permanent magnet must be converted to a sealed one, that is, a large magnetic plate separator 40. In the case of the elevating platform 20 shown in FIG. 9, since the support plate 21 has a rectangular shape, which is a general shape, this replacement work is performed as shown in FIG.
Both sides must be carried out, and must be carried out every time the shape and size of the material changes, which requires a large amount of time for replacement work. This is one factor that raises costs. If the magnetic plate 30 is not square but irregular, that is, if it has a more complicated shape,
Four or more magnetic plate separators 40 must be used,
Obviously, the replacement operation requires much more time.

Further, the actual magnetic plate 30 is often contaminated with oil or the like as described above,
In some cases, complete separation may not be achieved as shown in FIG. Therefore, in the vicinity of the magnetic plate separator 40,
As shown in FIG. 10, an air supply device 41 for forcibly blowing air is disposed between the respective magnetic plates 30 so that the magnetic plates 30 adhered to each other are forcibly separated by the air blown from this. It has also been done. If the air supply device 41 is required, the position adjustment must be performed at the time of replacing the magnetic plate separator 40 described above. In the case of the elevating table 20 shown in FIG. 9, this position adjustment operation must be performed for two units together with the exchange operation of the magnetic plate separators 40 on the four sides. This is one of the factors that increase the cost of products produced from presses.

The inventor of the present invention has been conducting various studies on this kind of magnetic plate separator so as to eliminate the need for replacing or adjusting the position of the magnetic plate. As a result, the present invention has been completed.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and the problem to be solved is to improve the usability of this kind of magnetic plate separator. Another object of the present invention is to further simplify the replacement operation.

That is, an object of the first aspect of the present invention is to easily change the strength of a permanent magnet according to a change in weight of a magnetic plate, thereby improving usability. As a matter of course, it is possible to further simplify the replacement work by eliminating the need for a conventional air supply device and its position adjustment work by providing a blowout port for blowing air from an air supply source. It is an object of the present invention to provide a magnetic plate separator which can be used.

An object of the invention according to claim 2 is to achieve the same object as that of the invention according to claim 1 as well as until the next stock of the magnetic plate is carried in. It is therefore an object of the present invention to provide a magnetic plate separating tool which can hold a plurality of magnetic plates during a period of time and can eliminate a loss of working time.

Further, the object of the invention according to claim 3 can achieve the same object as that of the invention according to claim 1 or 2, and is lifted by the loading / lifting device. It is an object of the present invention to provide a magnetic plate separator that can reliably guide the magnetic plate and facilitate the work of taking out the magnetic plate.

[0014]

Means for Solving the Problems In order to solve the above problems, first, means adopted by the invention according to claim 1 will be described with reference numerals used in the following embodiments.
The magnetic plate 30 is attached to a support plate 21 that constitutes a lifting platform 20 that stocks a large number of magnetic plates 30 such as iron plates and steel plates, and is used to separate and take out each magnetic plate 30 one by one. In the magnetic plate separating device 10 including a storage box 11 having a ridge 13 on a side surface thereof and a permanent magnet 14a which is inserted into and removed from the storage box 11, at least the storage box 11 is An opening 11c formed substantially at the center of the surface on the 30 side, a storage section 12 for storing the magnet body 14 composed of the permanent magnet 14a and its holding member 14b, and an insertion opening 12a formed in the storage section 12 are provided. In addition to being attached to the storage box 11 and disposed in the storage portion 12 thereof, each magnet body 14 is separated and stored in the left and right, and connected to an air supply source to blow out air from the opening 11c. of A magnetic plate separating device 10 "comprising: a mounting port 15 having a discharge port 15a and a connecting portion 15b to which a mounting arm 23 is connected to a support plate 21 on the lifting platform 20 side." .

That is, in the magnetic plate separating device 10 according to the first aspect, the permanent magnet 14 a is attracted to the holding member 14 b by its magnetic force to form the magnet 14, and the magnet 14 is placed in the storage box 11. The connecting portion 15b formed on the mounting column 15 is attached to the lifting platform 20 using the mounting arm 23.
It should just be attached to the side. In other words, in the magnetic plate separator 10, when the magnetic force is to be changed, the magnet body 14 having the replaced permanent magnet 14a is placed in the storage box 1
Thus, it is sufficient to simply insert it into the storage section 12 from the one insertion opening 12a. In other words, in the magnetic plate separator 10, the necessary magnetic force can be adjusted by moving the magnet body 14 into and out of the storage box 11 while keeping the storage box 11 attached to the lifting platform 20 side. It's easy.

Also, when adjusting the magnetic force of the magnet body 14, the size of the permanent magnet 14a attracted to the holding member 14b is changed, that is, the permanent magnet 14a having a different magnetic force is prepared, and the necessary magnetic force is prepared. It is only necessary to attract the permanent magnet 14a having the above to the holding member 14b by its magnetic force, and it can be performed instantaneously without any special tool or the like. In particular, in the magnet body 14 of the following embodiment, the holding member 1 on which the permanent magnet 14a is attracted is attached.
Since the magnet body 14 is housed in the magnet case 14b, the shape of the magnet body 14 does not change.
2 can be smoothly inserted.

Further, in the magnetic plate separator 10, the permanent magnet 14a is divided into a plurality of parts, so that the number of the permanent magnets 14a on the holding member 14b can be increased or decreased to adjust the overall magnetic force. The change of the magnetic force of No. 14 is made even easier. That is, the magnetic plate separating device 10
In the example, as illustrated in the embodiment of FIG. 1 or FIG. 6, the plurality of divided permanent magnets 14a are held on the holding member 14b by the magnetic force.
To reduce the magnetic force from this state, the permanent magnet 1
It is only necessary to reduce the number of 4a.

The magnetic plate separating device 10 according to the first aspect includes a mounting support 15 disposed in the storage portion 12 thereof.
The mounting column 15 is connected to an air supply source (not shown) to blow out air from the opening 11c, and a support plate 21 on the lift table 20 side.
And a connecting portion 15b to which the mounting arm 23 is connected. That is, as shown in FIG. 1, the magnetic plate separator 10 has an outlet 15 a opened toward each magnetic plate 30 between the two ridges 13. The air is supplied from the outlet 15a to the magnetic plate 3
By forcibly spraying on the zero side, each of the magnetic plates 30 that are still attached can be forcibly separated.

Further, in the magnetic plate separating device 10 according to the first aspect, since the connecting portion 15b is formed at the lower end of the mounting column 15, the connecting portion 15b is used to allow the lifting platform 20 side to be used. Arm 23 for supporting plate 21
Can be connected without using the storage box 11. That is, the lower end of the storage box 11 can be largely inserted into the inside of the support plate 21 constituting the elevating table 20, and each magnetic plate 3 by the magnetic plate separator 10 can be inserted.
0 can be sufficiently positioned, and the replacement operation of the magnetic plate separator 10 can be performed without concern for the position of the storage box 11.

[0020] In order to solve the above-mentioned problem, a second aspect is provided.
Means adopted by the invention according to claim 1 is that the storage box 11 of the magnetic plate separation tool 10 according to claim 1 is formed with “a stopper opening 11 d is formed substantially at the center of the surface of the storage box 11 on the side of the magnetic plate 30. At the same time, a stopper 16 for supporting the lowermost surface of the magnetic plate 30 stocked on the side of the elevating table 20 is provided on the mounting column 15 so that the stopper 16 can be freely moved in and out of the stopper opening 11d of the storage box 11. " is there.

That is, in the magnetic plate separating device 10 according to the second aspect, the stopper 16 can be freely moved in and out of the stopper opening 11d of the storage box 11.
6, a plurality of magnetic plates 30 can be supported. In other words, the magnetic plate separating tool 10 stops several magnetic plates 30 until the next stock of the magnetic plates 30 is loaded by the loading / lowering device 22 of the lifting platform 20. 16 is held on the upper surface of the tip, so as to eliminate the loss of working time.

Further, in order to solve the above-mentioned problem,
The means adopted by the invention according to claim 3 is that the storage box 11 of the magnetic plate separation tool 10 according to claim 1 or 2 is described as “the storage box 11 is the front plate 11 on the side of the magnetic plate 30.
a and the storage unit 12 integrated with the back surface of the front plate 11a.
And a skirt portion 1 bent at the lower end of the front plate 11a to the opposite side to the magnetic plate 30.
1e ".

That is, the magnetic plate separating device 10 according to the third aspect is loaded and unloaded by the skirt portion 11e formed at the lower end of the front plate 11a on the side opposite to the magnetic plate 30.
Magnetic plate 30 lifted by lifting device 22
Are guided so as to be surely inserted between the magnetic plate separators 10 so that the magnetic plate 30 can be more easily taken out.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the invention according to each claim will be described with reference to a magnetic plate separator 10 which is an embodiment shown in the drawings. Since the present invention substantially includes the present invention, the following description will focus on the magnetic plate separator 10 of this embodiment.

FIG. 1 shows a magnetic plate separating device 1 according to the present invention.
FIG. 2 is a perspective view of the magnetic body 30 viewed from the side of the magnetic body plate 30. The permanent magnet 14a divided into a plurality is attracted onto the holding member 14b by its magnetic force, and these are put in the magnet case 14b. To the storage section 12 of the storage box 11.
It is configured to be inserted into and out of the insertion opening 12a.

When the magnet box 14 is stored in the storage box 11, at least the ends of the magnetic plates 30 near the storage box 11 can be arranged in a magnetic field as shown in FIG. Therefore, it is made of a material that allows magnetic force to pass through. Further, since the 0 having the permanent magnet 14a has to enter and exit the storage section 12 of the storage box 11, an insertion opening 12a is formed in a part of the storage box 11. Although the insertion opening 12a is formed in the upper part of the storage box 11 in the embodiment shown in FIG. 1, it goes without saying that the insertion opening 12a may be formed in the side of the storage box 11, for example.

As shown in FIGS. 1 and 3, the storage box 11 is integrated with the front plate 11a shown in FIGS. 1 and 3 on the side of the magnetic plate 30 and the back of the front plate 11a. 2 and FIG. 4, and a storage section 12 is formed between the front plate 11a and the frame plate 11b. In the storage box 11 of the present embodiment, an insertion opening 12a for a magnet 14 to be described later is formed at an upper end of a storage portion 12 formed by the front plate 11a and the frame plate 11b.

In the storage box 11, the front plate 1
At the lower end of 1a, a skirt 11e bent to the opposite side to the magnetic plate 30 is integrally formed. In addition, as shown in FIG. 1, the front plate 11a has a blowout port 15a formed or provided on a mounting support 15 described later.
And an opening 11c for exposing the tip of the stopper 16
And the stopper opening 11d is formed.

As shown in FIG. 3B, two projections 13 projecting outward are formed on the surface of the front plate 11a constituting the storage box 11 on the side of the magnetic plate 30 in the vertical direction. It is formed in.
These ridges 13 are such that the end face of each magnetic plate 30 is
This is to prevent the magnetic material plate 30 from coming into contact with the entire side surface, and to prevent a large frictional resistance from being generated between the magnetic plate 30 and the storage box 11 when the magnetic plate 30 rises. In this sense, the ridge 13 is provided on the magnetic plate 30
It is most efficient to form two pieces in the longitudinal direction of the side surface, and in the embodiment where a part of the side plate of the storage box 11 is projected outward, the storage box 11 is formed. At this time, the ridge 13 can be formed easily by pressing.

The holding member 14b constituting the magnet body 14
Is a permanent magnet 1 divided into a plurality of parts as shown in FIG.
Since the magnetic material 4a is adsorbed by its magnetic force, it is made of a magnetic material such as an iron plate as in the case of the magnetic material plate separator 10. The magnet body 14 is a permanent magnet 1
4a, the handle 14c for facilitating the in / out operation is provided.
For example, it is provided at the upper end of the holding member 14b. This handle 1
4c is inserted from the upper end of the insertion portion 11f formed on the frame plate 11b shown in FIG. 2 and protrudes outside the insertion portion 11f. The magnet body 14 can be easily moved in and out of the storage section 12. The permanent magnet 14a
In many cases, the holding member 14b has a flat plate shape so that the suction surface is flat, so that the suction is surely performed.

Magnet case 14 constituting magnet body 14
b allows the permanent magnets 14a and the holding members 14b supporting the permanent magnets 14a to smoothly enter and exit the storage section 12 of the storage box 11 without weakening the magnetic force of the permanent magnets 14a. This is to stably hold the magnet 14a on the holding member 14b. Therefore, the magnet case 14b is not always necessary as a component of the magnet body 14. In the magnetic plate separator 10 of the present invention, the two magnets 14 are stored separately in the storage section 12 of the storage box 11 on the left and right sides of the mounting support 15 described later. In the entire plate separating device 10, the magnetic force by each of the permanent magnets 14a can be made uniform left and right.

A commercially available permanent magnet may be used as the permanent magnet 14a. In this case, it is more preferable to use the permanent magnets 14a having a square shape and the same size as shown in FIG. 1 because attachment and arrangement by suction to the holding member 14b can be easily performed. These permanent magnets 14
a, the partition holding member 14 is held by the frictional resistance between them.
b can be easily supported.

The mounting column 15 is as shown in FIG. 5. On the front side thereof, two blowouts which are exposed from an opening 11c formed in a front plate 11a constituting the storage box 11 are provided. A mouth 15a is formed. An air hose connected to an air supply device (not shown) is connected to the back surface of each of the outlets 15a, and blows air toward each of the magnetic plates 30. The lower end of the mounting column 15 is a connecting portion 15b as shown in FIG. 2, and the connecting portion 15b has a mounting arm for the support plate 21 on the side of the elevating table 20, as shown in FIG. 23
Are to be concatenated.

A guide portion is formed on the mounting column 15, and a stopper 16 is assembled in the guide portion via a spring 16b so as to be able to move in and out. The stopper 16 is provided on the front plate 11 constituting the storage box 11.
The protrusions protrude from the stopper openings 11d formed on the side of each of the magnetic plates 30 toward the respective magnetic body plates 30, and the lower surfaces of the distal ends thereof serve as guide surfaces 16a. That is, this stopper 1
6, the spring 16b is provided when the magnetic plate 30 lifted from the lower side contacts the guide surface 16a.
Is stored in the guide portion of the mounting column 15 against the urging force of the magnetic pole. The body plate 30 is received.

The magnetic plate separator 10 constructed as described above
Is, for example, as shown in FIG.
It can be used if it is attached using the attachment arm 23. Then, the number of the prepared permanent magnets 14a is adjusted, and these permanent magnets 14a are adsorbed on the holding member 14b to form the magnet body 14. This magnet body 14 is arranged as shown in FIG. Then, when the magnetic material plate 30 is inserted into the storage box 11 through the insertion opening 12a,
Between them, for example, a gap as shown in FIG. 3 can be formed.

[0036]

As described in detail above, according to the first aspect of the present invention, as described in the above embodiment, the "elevator 2 for stocking a large number of magnetic plates 30 such as iron plates and steel plates"
0, and each magnetic plate 3
0 is used to separate the magnetic plates 3
In the magnetic plate separator 10 including the storage box 11 having the ridge 13 on the surface on the 0 side and the permanent magnets 14a that enter and leave the storage box 11, at least the storage box 11 is made of a magnetic material. Opening 1 formed substantially at the center of the surface on the side of plate 30
1c, a storage unit 12 for storing a magnet body 14 composed of a permanent magnet 14a and its holding member 14b,
The magnet body 14 is attached to the storage box 11 and is disposed in the storage portion 12 so that the magnet bodies 14 are separated and stored in the left and right directions and connected to the air supply source. The connecting portion 15 to which the outlet 15a for blowing out the air from the opening 11c and the mounting arm 23 to the support plate 21 on the elevator 20 side are connected.
and the mounting column 15 having a b), there is a feature in the configuration, whereby the strength of the permanent magnet according to the weight change of the magnetic plate can be easily changed, Naturally, it is possible to improve the usability, and by providing the air outlet that blows out the air from the air supply source, the air supply device and its position adjustment work, which were conventionally required, are not required, and the air supply device can be replaced. It is possible to provide a magnetic plate separator that can further simplify the operation.

According to the second aspect of the present invention, the magnetic plate separating device 10 according to the first aspect is configured such that "a stopper opening 11d is formed substantially at the center of the surface of the storage box 11 on the side of the magnetic plate 30". At the same time, a stopper 16 for supporting the lowermost surface of the magnetic plate 30 stocked on the lifting platform 20 side is provided on the mounting column 15, and this stopper 16 is attached to the storage box 1.
1 can be freely moved in and out of the stopper opening 11d ". This has the feature of the configuration, whereby the same effect as that of the invention according to claim 1 can be exhibited. It is possible to provide a magnetic plate separating tool which can hold a plurality of magnetic plates until it is carried in, thereby eliminating a loss of working time.

Further, in the invention according to claim 3,
Magnetic plate separator 10 according to claim 1 or 2.
The storage box 11 is composed of a front plate 11a on the side of the magnetic plate 30 and a frame plate 1b integrated with the back surface of the front plate 11a to form the storage section 12, and the front plate 11a
A skirt portion 11e bent to the opposite side to the magnetic body plate 30 at the lower end portion of the
Thereby, the same effect as the invention according to claim 1 or 2 can be exhibited, and the magnetic plate lifted by the loading / lowering device is reliably guided to take out the magnetic plate. It is possible to provide a magnetic plate separating tool that allows the work to be performed more easily.

[Brief description of the drawings]

FIG. 1 is a perspective view of a magnetic plate separator according to the present invention as viewed from a magnetic plate side.

FIG. 2 is a rear view of the magnetic plate separator.

3A and 3B show a front plate constituting a storage box of the magnetic plate separator, wherein FIG. 3A is a perspective view and FIG. 3B is a side view.

4A and 4B show a frame plate constituting a storage box of the magnetic plate separator, wherein FIG. 4A is a perspective view and FIG. 4B is a front view.

FIG. 5 is a perspective view of a mounting column with a stopper mounted.

FIG. 6 is an exploded perspective view of a magnet constituting the magnetic plate separator.

FIG. 7 is a perspective view showing a state in which the magnetic plate separator is attached to a support plate of a lifting platform.

FIG. 8 is a partial perspective view for explaining the operation of the magnetic plate separator.

FIG. 9 is a perspective view of an elevating table employing this type of magnetic plate separator.

FIG. 10 is a perspective view showing a state in which a conventional magnetic plate separator and an air injection device are attached to a support plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Magnetic material plate separation tool 11 Storage box 11a Front plate 11b Frame plate 11c Opening 11d Stopper opening 11e Skirt part 12 Storage part 12a Insertion opening 13 Ridge 14 Magnet 14a Permanent magnet 14b Holding member 14c Handle 14d Magnet case 15 Mounting column 15a Outlet 15b Connecting portion 16 Stopper 16a Guide surface 16b Spring 20 Lifting table 21 Support plate 30 Magnetic plate

Claims (3)

(57) [Claims] The magnetic material is attached to a support plate constituting a lift for stocking a large number of magnetic plates such as an iron plate and a steel plate, and is used to separate and take out each of the magnetic plates. In a magnetic plate separation tool including a storage box having a ridge on a surface serving as a plate side and a permanent magnet that is inserted into and removed from the storage box, the storage box is at least on the magnetic plate side An opening formed substantially in the center of the surface, a storage portion for storing the magnet body including the permanent magnet and its holding member, and an insertion opening formed in the storage portion; Attached and placed in its storage,
Along with the magnets separated and housed separately in the left and right, an outlet connected to an air supply source for blowing out air from the opening, and a connecting portion to which a mounting arm for the support plate on the elevator platform side is connected. And a mounting column having: a magnetic plate separator. 2. A stopper opening is formed substantially at the center of the surface of the storage box on the magnetic plate side, and
2. The magnetic plate according to claim 1, wherein a stopper for supporting a lowermost surface of the magnetic plate stocked on the lift table side is provided, and the stopper can be freely moved in and out of a stopper opening of the storage box. Separator. 3. The storage box comprises a front plate on the side of the magnetic plate, and a frame plate integrated with the back surface of the front plate to form the storage portion, and a lower end of the front plate. The magnetic plate separator according to claim 1 or 2, wherein a skirt portion is formed on the portion, the skirt portion being bent to the opposite side to the magnetic plate.