JPS5845306B2 - Sorting device for magnetic rods - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic rod-like object sorting device that attracts and sorts arbitrary objects by moving a magnetic rod-like object, particularly a welding rod, and bringing a magnet close to the welding rod.

That is, the present invention particularly aims at sorting out defective products from manufactured coated welding rods by magnetizing or demagnetizing any magnet while synchronizing the movement of the magnet with the movement of the welding rod. The present invention relates to a device for performing.

In the following explanation, a welding rod will be taken as an example, and a method and apparatus for sorting the rod will be explained.

Conventionally, picking out arbitrary welding rods from the continuously transported welding rods has been a very labor-intensive task, and it is also necessary to carry out sorting for specific purposes, such as picking out defective items. It is an extremely difficult task to perform perfectly.

If the transfer speed of the welding rods is slow, it is possible to ensure completeness even with manual selection, but since welding rods are normally transferred at a speed of more than 10 rods per second, manual selection is difficult. This is almost impossible, and unless the transfer speed is this fast, the productivity of the sorting work itself will not increase.

Therefore, in order to solve the above-mentioned technical problems, the present invention transports a magnet in synchronization with the transport of the welding rod, and magnetizes or demagnetizes this magnet, thereby transferring the welding rod into two parts.
The purpose is to provide a device for sorting into types.

A sorting device for magnetic rods according to the present invention includes an alignment means for arranging a large number of magnetic rods at equal intervals, a transfer means for continuously transporting the rods, and a device arranged opposite to the transfer means. a plurality of magnets arranged on the rotating body at intervals corresponding to the intervals of the rod-like objects and attracting the rod-like objects; a driving means for rotating a rotating body to move the magnet; a sorting means for selectively magnetizing or demagnetizing any one of the plurality of magnets; and a rod-shaped member that is attracted to the magnet by magnetization. It is characterized by comprising a separating means for separating the object from the magnet.

The magnetic rod-shaped object is not limited to a welding rod, but any rod-shaped object can be used as long as it has magnetism that can be attracted by a magnetized magnet.

Further, in the present invention, welding rods are sorted by selectively magnetizing or demagnetizing any magnet out of a plurality of magnets that move in synchronization with a magnetic rod-shaped object, such as a welding rod. There are two embodiments in terms of morphology.

That is, one magnet magnetizes (excites) any one of the plurality of magnets by energizing it, attracts the continuously transferred welding rods, and separates the attracted welding rods and other welding rods that are not attracted. Separate them from each other.

In this case, the magnetized magnet must be demagnetized afterwards.

On the other hand, all the magnets are magnetized in advance (in this case, it is more effective to use a permanent magnet with a coil wound around it), and any magnets are demagnetized by electricity, and the magnets are transferred continuously. Those welding rods that are not attracted are separated from those that are attracted.

In this case, the demagnetized magnet must be magnetized afterwards.

Furthermore, two types of embodiments can be adopted regarding the means for transporting the welding rod.

By the way, when welding rods are attracted by a magnet, if multiple welding rods are attracted to one magnet, it becomes impossible to sort them, so the welding rods must be aligned and transferred at intervals that correspond to the spacing between each magnet. Must be.

Therefore, in a first embodiment, a corrugated conveyor belt is used, and the welding rod is placed in a position below the magnet, either by incorporating an alignment means into the conveyor belt as a transport means or by using an alignment means separate from the conveyor belt. In one case, a large number of welding rods are arranged in advance at equal intervals, and in the second case, the welding rods are arranged so that they can be aligned by a rotating body in which magnets are arranged at equal intervals. Depending on the individual case, it is possible to align the welding rods so that they can be attracted almost simultaneously.

Hereinafter, preferred specific examples of the device of the present invention will be explained based on the drawings.

1 and 2 show a first specific example of the present invention,
The device 1 uses a corrugated conveyor belt 2 as a conveying means, and a large number of welding rods 3, which are aligned at equal intervals and conveyed by the corrugated portion of the conveyor belt 2 as an aligning means, are transferred as a rotating body. The structure is such that a magnet 5 attached to a chain member 4 such as a chain or pin is used for sorting.

The conveyor belt 2 is configured to receive the coated welding rod and transport it to the packaging process, although the mechanism as its driving means is not shown.

The magnet 5 is an electromagnet or a permanent magnet with a memory property and a coil wound around it, and must have enough magnetic force to lift the welding rod 3, and is preferably one with high electromagnetic and demagnetizing responsiveness.

If the magnet 5 attracts at least one end of the welding rod 3, it is possible to lift the welding rod necessary for sorting work, but in each specific example of the present invention, the magnet is arranged so as to mainly attract both ends of the welding rod. are doing.

The plurality of magnets 5 are arranged in a chain by a chain member 4 such as a chain or pin to correspond to the welding rod, and a rotating body rotated by a driving means is used to move the magnets in synchronization with the welding rod. , comprising the chain member 4 and circular members 6, 7 on which the chain member is hung.

The chain member 4 is formed by placing magnets next to rollers using an ordinary chain, or by connecting each magnet rotatably to each other with a pin or the like.

Two chain members 4 are engaged with the circular members 6 and 7 so that both ends of the welding rod are attracted by respective magnets,
1 each with 2 pieces that rotate integrally and separated in the axial direction of the welding rod.
They are a pair of discs or a single cylindrical member that engages with the two chain members 4 at the same time, with the first circular member 6 located at the front and the one at the rear with respect to the moving direction of the welding rod. The second circular member 7 is located there.

Reference numeral 10 denotes energizing brushes as energizing members arranged at equal intervals corresponding to the spacing between the magnets on each of the circular members 6 and 7, and the energizing brushes 10 come into contact with the magnets 5 to magnetize the welding rod. Or energize to demagnetize.

However, when using a permanent magnet with a coil wound around it, electricity is applied to cancel the magnetic field.

The magnet includes both magnetization and demagnetization of a permanent magnet material and an electromagnet.

Further, as the current-carrying member, a current-carrying brush may be used, and in the case of an electromagnet, a slip ring may also be used.

The circular members 6 and 7 are mounted on shafts 6a and 7a, respectively, and the shaft 7a (or the shaft 6a may be used) is connected to a mechanism (not shown) as a driving means to rotate the circular members 6 and 7. The drive mechanism moves the magnet 5 at the same speed as the welding rod.

Each shaft is provided with a current-carrying ring 12 that is in contact with the carbon brush 11 and supplies power to the current-carrying brush 10 .

Each energizing ring 12 is a one-round ring, two half-circular rings, or four quarter-circular rings, and can supply power to each energizing brush.

In this case, the circular member is fixed to the shaft and rotates as a unit.

On the other hand, a circular member is attached so as to be rotatable around the axis, and one carbon brush is in direct contact with the current-carrying brush of the circular member, and one carbon brush is connected to the magnet at the shortest position to the welding rod. It may be configured to supply power instantaneously.

The carbon brush and the current-carrying ring constitute a power feeding means, and the current-carrying brush of each of the circular members and the current-carrying ring or the carbon brush constitute a sorting means.

When the magnet 5 at the shortest position to the welding rod is magnetized by a member such as a current-carrying ring or a carbon brush that supplies power to the current-carrying brush of the first circular member 6, the welding rod 3 is attracted to the magnetized magnet 5. is separated from the other groups of welding rods 3 on the conveyor belt 2 and transferred together with the chain member 4 and the magnet 5 towards the circular member 7.

Then, when the energizing brush 10 on the circular member 7 and the magnet 5 that attracts the welding rod 3 come into contact with each other, and the attracted magnet 5 reaches the frame 11 on which the electromagnetic feeder 16 is provided, the carbon brush on the circular member 7 11. The magnet 5 that attracts the welding rod 3 is demagnetized via the energizing ring 12 and the energizing brush 10, and the welding rod 3 is separated from the magnet 5 and placed on the frame 17.

In this case, the carbon brush 11, the energizing ring 12, the energizing brush 10, etc. function as a separating means.

Reference numeral 15 denotes a separation plate for brushing off the welding rods that are magnetically attached to the magnet 5. For example, defective welding rods that have been sorted out can be separated by separation means consisting of an energized brush 10 or the like or separation means consisting of the separation plate 15. Alternatively, the electromagnetic feeder 16 may be disposed on a frame 17.

18 indicates a magnetic cleaning brush or air stream.

In the following specific example, only the main parts will be explained.

FIG. 3 shows a second specific example of the device of the present invention, in which the device 21 forms a rotating body by winding a chain member 4 in which magnets 5 are arranged in a chain around one circular member 22. ing.

A plurality of energizing brushes 10 as the sorting means are provided on a circular member 22 in the same way as those in the device 1, and on the other hand, a power supply means for the sorting means for magnetizing or demagnetizing the magnet is arranged on the circular member 22. .

That is, in the device 1, the first and second means are arranged separately in the first and second circular members 6, 7, but in the device 21, they are arranged in one circular member.

The first and second means of the device 21 may be one that uses only the carbon brush 24 that contacts the current-carrying brush 10, or a carbon brush and a current-carrying ring as in the device 1, but when using a current-carrying ring, the current-carrying ring is It is divided and each energizing brush is supplied with power at two positions so that one energizing ring can magnetize and demagnetize the magnet.

The power supply means supplies power through an energized brush to magnetize or demagnetize the magnet from a position A where the magnet 5 and the welding rod 3 are closest to each other or in front of the position A, and the separation means moves from the position A 90 or configured to demagnetize the magnetized magnet at a position equally displaced by 180°,
The welding rod attracted to the magnet is separated from this magnet.

Incidentally, in this second embodiment, similarly to the first embodiment, the welding rods are transported by a corrugated conveyor belt 2, or are aligned by an alignment means and transported by a flat conveyor belt.

FIG. 4 shows a third specific example of the device of the present invention, and this device 31 has an extremely simple structure.

That is, the device 31 has a plurality of magnets 5 arranged directly on the circular member 32, the rotating body is composed only of the circular member 32, the sorting means does not have an energized brush, and a carbon brush is directly placed on the terminal 5a of the magnet 5. 24 is in contact to supply power.

24a is a carbon brush for the power supply means of the sorting means, 24b is a carbon brush for the separation means, and the carbon brushes 24a, 24b
are fixed at predetermined positions adjacent to the circular member 32 so as to contact the terminals 5a of the magnets 5, respectively.

FIG. 5 shows a fourth embodiment of the device of the present invention, and this device 41 is a modification of the circular member of the third embodiment.

In the device 31, the welding rods must be transported by the corrugated conveyor belt 2 or aligned in advance by an alignment means.
In this device 41, the circular member 42 itself as a rotating body can align the welding rods on the flat conveyor belt.

That is, the circular member 42 has recesses 43 formed at equal intervals on its outer peripheral surface, and the magnets 5 are disposed at or near the bottom of the recesses.

Therefore, according to this device 41, the welding rods can be arranged at equal intervals and simultaneously attracted by the magnetized magnet, and there is no need to arrange the welding rods in advance on a conveyor belt as a transfer means and then transfer them.

In the second to fourth specific examples, if a circular member is rotatably attached to the shaft, and a gear or the like is attached to this circular member and is configured to be rotated by a drive means or a drive mechanism, the shaft can be rotated. This is preferable because carbon brushes can be arranged.

As described above, in the present invention, since the present invention has the above-described configuration, a large number of magnetic bar-like objects are arranged at equal intervals by the alignment means and continuously transferred by the transfer means, and are arranged opposite to the transfer means. While synchronously moving a plurality of magnets arranged at intervals corresponding to the intervals of the rod-shaped objects on a rotating body provided, a selection means selects any one of the plurality of magnets. By magnetizing or demagnetizing the magnet, the magnetic rod-like object corresponding to the magnet can be attracted by the magnetized magnet, and any magnetic rod-like object can be reliably selected from among a large number of magnetic rod-like objects. The magnetic bar-shaped object attracted by the magnet,
By the rotation of the rotating body, the magnetic rod-like object can be transported together with the magnet to a predetermined position, and the transported magnetic rod-like object can be separated from the magnet at the predetermined position by a separating means, and the sorted magnetic rod-like object can be moved to the predetermined position. A sorting device for magnetic rods that can be reliably placed can be provided.

In addition, the device according to the invention has a simple construction and is capable of high speed operation.

[Brief explanation of the drawing]

The drawings show a preferred specific example of the magnetic bar sorting device according to the present invention, and FIGS. 1 and 2 are a front view and a plan view of the first specific example, and FIG. 3 is a main view of the second specific example. Part explanatory diagram,
FIG. 4 is a front view of the third specific example, and FIG. 5 is an explanatory diagram of main parts of the fourth specific example. 1. 21. 3 Bear belt, 5... Magnet... energizing brush, ... energizing ring, 1.41... Sorting device, 2... 3...
...Welding rod, 4... Chain member, G, 6,
7... Circular member, 10...11...
Carbon brush, 12...43... recess.

Claims (1)

[Scope of Claims] 1. Aligning means for arranging a large number of magnetic rod-like objects at equal intervals, a transport means for continuously transporting the rod-like objects, and a rotating body disposed opposite to the transport means. and a plurality of magnets that are arranged on a rotating body at intervals corresponding to the intervals of the rod-like objects and that attract the rod-like objects, and a plurality of magnets that move the magnets in synchronization with the rod-like objects that are aligned and transferred. a driving means for rotating the rotary body as desired; a sorting means for selectively magnetizing or demagnetizing any one of the plurality of magnets; and a separating means for selectively magnetizing or demagnetizing any of the plurality of magnets; A sorting device for magnetic rod-like objects, comprising a separating means for separating the objects. 2. The device according to claim 1, wherein the separating means is a separation plate for shaking off the magnetic rod-like object attracted to the magnet from the magnet. 3. The apparatus according to claim 1, wherein the separating means is a means for demagnetizing a magnet to which a magnetic rod-like object is attracted and separating the rod-like object from this magnet. 4. The device according to any one of claims 1 to 3, wherein the transport means is a conveyor belt. 5. Apparatus according to claim 4, characterized in that the alignment means is a corrugated portion formed on the surface of the conveyor belt. 6. The device according to claim 5, wherein the rotating body is a circular member on which the magnets are arranged at equal intervals on the outer peripheral surface, and the circular member is rotated by a driving means. 7. The rotating body is a circular member, and a plurality of recesses as alignment means are formed at equal intervals on the outer peripheral surface of the circular member,
A patent claim characterized in that the rod-like objects being transported by a conveyor belt are engaged with the recesses and arranged at equal intervals, and the magnets are respectively attached to circular members adjacent to each recess. Apparatus according to scope 4. 8. The rotating body is configured such that the chain member engages with a chain portion in which a plurality of magnets are arranged in a chain, and at least one rotor is rotated by a driving means to move the chain member.
6. Device according to claim 5, characterized in that it consists of two circular members. 9 In order to attract both ends of the magnetic bar-like object, it has two chain members, and the two circular members that each chain member engages with are integrally separated in the axial direction of the bar-shaped object. 9. A device as claimed in claim 8, characterized in that it is arranged for rotation. 10 The first and second chain members have two chain members for attracting both ends of the magnetic bar-like object, and these two chain members engage with each other at the front and rear, respectively, in the moving direction of the chain member.
10. A device according to claim 8, characterized in that it has a circular member. 11 The sorting means selectively selects any one of the magnets through a plurality of current-carrying members attached to a circular member at equal intervals to correspond to the magnets arranged in the chain member, and the current-carrying member. The device according to any one of claims 8 to 10, characterized in that it comprises a power supply means for magnetizing or demagnetizing.