JPH06100160A - Magnetic substance product arranging supplying device - Google Patents

Abstract

PURPOSE:To load a large quantity of product at one time by using an area on a disk at its maximum without applying stress to the product and without replacing and adjusting a guide mechanism even if the size or a shape of the product is changed more or less. CONSTITUTION:A magnetic substance product arranging supplying device has a non-magnetic substance disk 10, a large number of permanent magnets 12 arranged in the outer peripheral direction from the central vicinity under the disk 10 and a magnet support body 14 to hold the respective permanent magnets 12 so that the upper surfaces of these permanent magnets 12 can have a proper gap to the under surface of the disk 10. The disk 10 is supported rotatably freely, and a rotary driving mechanism 18 composed of a motor or a gear and the like is connected to the rotary shaft 16, and is rotated at a fixed speed in the arrow direction. The magnet support body 14 is fixed and is put in a stationary condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic product aligning and feeding apparatus for sequentially moving a large number of randomly supplied magnetic products to the outer periphery, aligning them, and sending them to the next step. More specifically, a plurality of magnets are arranged under the non-magnetic disc on which the magnetic product is placed, from the vicinity of the center to the outer periphery through a slight gap, and the disc or the magnet group is relatively arranged. The present invention relates to a device for aligning and supplying magnetic products by rotating the magnets by the rotating force and the magnetic attraction force of the magnets. This apparatus is suitable, for example, in the case of supplying products one by one to a deburring device or a polishing device in a manufacturing process of a cylindrical ferrite magnetic core.

[0002]

2. Description of the Related Art In the process of manufacturing various products, it is often desired to align the products one by one and supply them to the next process. In such a case, various feeding devices for aligning products according to the geometrical characteristics of the products are usually used. A conventional aligning and feeding device generally rotatably supports a disk on which a product is placed, and a guide mechanism for sequentially guiding the product from the vicinity of the center of the disk to the outer periphery thereof is installed above the disk. A rotary drive mechanism is connected to the rotary shaft. Here, the guide mechanism has a structure in which elastic material or vane plates having a structure are dispersed and arranged according to the shapes of products to be aligned.

When a product is placed in the center of the disk and the disk is slowly driven to rotate at a constant speed by the rotary drive mechanism, the product on the disk also rotates as the disk rotates. When the rotating product hits the stationary vane plate of the guide mechanism or the like, the product changes its course outward along the vane plate and gradually moves from the central portion to the outer peripheral portion. Eventually, it reaches the outermost peripheral portion, and is sent to the next step from the delivery port through a supply conveyor or the like.

In the conventional apparatus, the products reaching the outermost periphery may be densely packed in the vicinity of the delivery port on the outer periphery of the disk and cannot be moved, so that the product cannot be discharged from the delivery port. This is called a "bridge". This bridge occurs because it is difficult to finally arrange the products in a line at the outermost peripheral portion of the disk, regardless of how the shape and angle of the vane plates that form the guide mechanism are adjusted. Therefore, a bridge collapse mechanism is provided near the outlet. This consists of a rotor that rotates with a motor and oscillating blades, etc., and the rows inside the product that travel in a random row, such as two rows, are bounced off the inside of the disk to prevent bridges, Forcibly align them in a line and guide them to the feed conveyor.

[0005]

As described above, in the case of the feeder having the conventional structure, the products are aligned by using the mechanical method. Therefore, if the product is a ceramic material such as a ferrite core, the rotating product may collide with or slide against a stationary vane plate, causing the product edge to be damaged and the appearance to be impaired. is there. Also, because some products have been pushed away to break the bridge,
There is a problem that stresses the product.

Further, in various guide mechanisms, another supporting member needs to be installed above the disk to support and fix it, and it is difficult for them to put a large amount of product on the disk, and the mountable product quantity (stock Amount) is reduced. Furthermore, the guide mechanism has a complicated structure, and it is necessary to replace or change the blade plate with an optimum shape and installation angle according to the size and shape of the product. Therefore, there is a drawback that the number of set-up parts for replacement increases and the adjustment is time-consuming. Because of these, the production efficiency was lowered.

The object of the present invention is not to give stress to the product, it is not necessary to replace or adjust the guide mechanism even if the size or shape of the product is changed a little, and the maximum area of the disk is utilized to produce a large amount of product. It is an object of the present invention to provide an aligning and supplying apparatus for magnetic products, which can be placed at one time and therefore has extremely good working efficiency.

[0008]

SUMMARY OF THE INVENTION The present invention is an apparatus for aligning a large number of magnetic products randomly supplied and sending them to the next step. The present invention that can achieve the above object, a non-magnetic disc for mounting magnetic products to be aligned,
A plurality of magnets arranged underneath it from the vicinity of the center toward the outer peripheral direction; a magnet support for supporting the magnets so that the upper surfaces of the magnets are positioned with a slight gap to the disc; A rotation driving mechanism that rotatably supports the magnet support and drives the both to rotate relative to each other is provided, and the arrangement direction of the plurality of magnets has a circumferential direction component of the rotation direction of the disk with respect to the magnet support. In addition, the magnetic product aligning and feeding device is configured such that its circumferential component increases toward the outer circumferential side.

The magnet may be an electromagnet, but a permanent magnet is preferable because the structure is simplified. For example, a large number of permanent magnets are arranged substantially spirally from the vicinity of the center of rotation toward the outer peripheral direction. Both the disk and the magnet support may be rotated, or the magnet support may be rotated with the disk stationary, but it is preferable to fix the magnet support by rotatably connecting the disk to the rotary drive mechanism. .

[0010]

The present invention positively utilizes the fact that the product is a magnetic body, and uses the rotating force and the magnetic attractive force of the magnet to
It supplies magnetic products in line. For example, when the disc rotates, a large number of magnetic products mounted on the disc also rotate together. When the magnetic product comes close to the magnet, it is attracted to the stronger magnetic force. However, the magnetic product also receives a force to move it in the direction of rotation of the disk. Here, the magnets are arranged from the vicinity of the center toward the outer peripheral direction, and the arrangement direction has a circumferential direction component in the rotation direction with respect to the magnet support of the disk, and the circumferential direction component becomes larger toward the outer peripheral side. Therefore, the magnetic product moving in the circumferential direction is attracted outward by the magnetic force of the adjacent magnet. Thus, the magnetic products in the central dense state are gradually dispersed, and the dispersed magnetic products are attracted to the adjacent magnets one after another as the disk rotates, and gradually aligned in a row along the row of magnets, and Gradually move toward the outer circumference. The peripheral speed of the magnetic material product increases toward the outer side of the disk, but the magnets are also arranged so that the circumferential direction component increases toward the outer side, and therefore the rows of magnetic material products attracted to the magnets are less likely to be disturbed. And finally, it is sent from the delivery port to the next process in a single row. In this way, since they move in a line, a bridge is not formed at the delivery port.

[0011]

1 is a partially cutaway plan view showing an embodiment of an apparatus for aligning and supplying magnetic products according to the present invention, and FIG. 2 is a side view thereof. This apparatus for aligning and supplying magnetic products includes a disk 10 made of a non-magnetic material, a large number of permanent magnets 12 arranged below the disk 10 from the vicinity of the center toward the outer peripheral direction, and the upper surfaces of the permanent magnets 12 are the same as those described above. It has a magnet support 14 that holds each permanent magnet 12 so that it has an appropriate gap with respect to the lower surface of the disk 10. Here, the disk 10 is rotatably supported, and a rotation drive mechanism 18 including a motor and a gear is coupled to a rotation shaft 16 of the disk 10 and rotates at a constant speed in the arrow direction. In this embodiment, the magnet support 14 is fixed and stationary. A guide ring 22 for preventing the product 20 from falling is provided along the outer circumference of the disk 10, and a magnetic product delivery path 24 is further provided in the tangential direction of the outer circumference.
Are formed.

Here, the disk 10 is rotatably supported at the center, but is free at the outer peripheral portion. Therefore, a material that does not bend in the outer peripheral portion is used even if a large number of magnetic products 20 having a considerable weight are placed. Further, the magnetic field generated by the lower permanent magnet 12 does not reach the upper magnetic material product 20, so that the magnetic material needs to be a non-magnetic material. Therefore, for example, a disk made of stainless steel having a thickness of about 3 mm is preferable.
The surface is mirror finished. This is a magnetic product 20
This is to make it possible to move smoothly by making it slippery. The multiple permanent magnets 12 are arranged in a spiral shape from the vicinity of the center of rotation toward the outer peripheral direction. That is, the discs are arranged so as to have a circumferential component in the rotation direction and the circumferential component becomes larger toward the outer peripheral side. Here, each permanent magnet 14 is in the shape of a rectangular parallelepiped, is magnetized in its longitudinal direction, and is bonded to the magnet support 14 in a direction in which the magnetizing direction matches the array direction. At this time, a constant gap (for example, 1 μm) is formed between the lower surface of the disk 10 and the upper surface of the permanent magnet 12.
mm) and the permanent magnet 12 is set so as not to hinder the free rotation of the disk 10. The permanent magnet actually used in the trial manufacture was a ferrite magnet having a width of 9 mm, a height of 5 mm, and a length of about 30 mm.

Next, the operation of the apparatus for aligning and supplying magnetic products will be described. A large number of magnetic products 20 such as a cylindrical ferrite magnetic core (for example, a diameter of about 10 to 20 mm) are randomly placed upright and densely on the central portion of the disk 10. The magnetic product 20 rotates as the disk 10 rotates. The magnetic field generated from the permanent magnet 12 leaks to the upper part of the disk 10 because the disk 10 is a non-magnetic material. Among the many magnetic products 20 rotating on the disk 10, those that have entered the magnetic field of the permanent magnet 12 are attracted by the magnetic attraction force thereof, and gradually move from the dense state to the dispersed state. At the same time as the magnetic attraction force, the magnetic product 20 is rotated by the disk 10 and tends to move in the circumferential direction. Since the permanent magnets 12 are arranged in a spiral shape so as to have a circumferential component in the rotation direction of the disk from the vicinity of the center of rotation toward the outer circumference as described above,
The magnetic material product 20 that is about to move in the circumferential direction is caught by the magnetic field of the adjacent permanent magnet 12 and attracted. In this way, the magnetic product 20 is attracted to the permanent magnets 12 on the outer peripheral side one after another as the disk 10 rotates, and moves to the outer peripheral portion. Then, the many magnetic products 20 are gradually aligned in a row in the process of moving to the outer peripheral portion along the row of the many permanent magnets 12, and move toward the delivery path 24. The delivery path 24 is opened substantially by the width of the magnetic product 20, and the magnetic products 20 in a line are sequentially sent to the next step through the delivery path 24 by a conveyor or the like.

In this aligning and feeding device, even if the size and shape of the magnetic products are slightly different, it is not necessary to change the size, shape or arrangement of the permanent magnets, and the magnetic products are aligned under the same conditions using the same device. Can supply.

The present invention is not limited to the above configuration. The magnetizing direction of the permanent magnets is the arrangement direction (parallel to the disk)
However, it may be in the width direction (parallel to the disk),
It may be in the vertical direction (perpendicular to the disc). The magnet is not limited to a permanent magnet but may be an electromagnet. It is desirable that the permanent magnets 12 be arranged in a smooth curved shape in a spiral shape as described above, but an arrangement similar to a polygonal line shape as shown in A of FIG. 3 may be used. Further, as shown in FIG. 3B, the spiral line (or the polygonal line) may be dispersed in the circumferential direction (arranged so that the end point and the start point are shifted in the circumferential direction to form a spiral line). .

Furthermore, in the above-mentioned embodiment, the disk rotates and the magnet support remains stationary, but they may be reversed, or both may be rotated so as to have a relative speed. The rotation speed is usually constant, but in some cases the rotation speed may be changed according to the amount of products placed. As a result, even if the amount of placed products gradually changes, it is possible to always discharge a constant amount of products.

[0017]

According to the present invention, a magnet array is arranged below the disk on which magnetic products are placed, and the magnetic products are attracted and aligned by a magnetic force. Therefore, a mechanical method using a blade or the like is used. Unlike other products, there is nothing that collides with the product, so there is no risk of impairing the appearance of the product. Further, since the magnetic products can be aligned in a line, a bridge cannot be formed near the delivery port, and a bridge breaking mechanism is not required, so that stress applied to the magnetic products can be minimized.

Moreover, the apparatus of the present invention does not require a guide mechanism such as a vane plate to be installed on the upper part of the disk as in the prior art, so that the area on the disk is utilized to the maximum and a large amount of magnetic material products are placed in advance. Moreover, there is no need to replace or adjust the parts of the device depending on the type of product, and the production efficiency is improved. Further, even a product whose bottom surface is chamfered is hard to fall down because it moves in a magnetically attracted state, and the trouble of monitoring the operation status of the device can be saved.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view showing an embodiment of an apparatus for aligning and supplying magnetic products according to the present invention.

FIG. 2 is a side view thereof.

FIG. 3 is a plan view showing another example of an arrangement state of permanent magnets.

[Explanation of symbols]

 10 disk 12 permanent magnet 14 magnet support 18 rotation drive mechanism

Claims (3)

[Claims] 1. In a device for aligning a large number of randomly supplied magnetic products and sending them to the next step, a non-magnetic disc for placing magnetic products to be aligned and a center below the disc. A plurality of magnets arranged from the vicinity toward the outer peripheral direction; a magnet support for supporting the magnets so that the upper surfaces of the magnets are positioned with a slight gap to the disc; and the disc or the magnet support. A rotation driving mechanism that rotatably supports and drives both of them relative to each other is provided, and the arrangement direction of the magnets has a circumferential direction component of the rotation direction with respect to the magnet support of the disk, and the outer peripheral side thereof has An apparatus for aligning and supplying magnetic products, characterized in that the circumferential component is increased. 2. The apparatus according to claim 1, wherein the magnet is a permanent magnet, and a large number of such permanent magnets are arranged in a spiral shape from the vicinity of the center of rotation toward the outer peripheral direction. 3. The apparatus according to claim 1, wherein the disk is rotatably supported and coupled to a rotary drive mechanism, and the magnet support is fixed.