JPH0582266B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a magnetic sorting device that can reliably sort magnetic metal parts and non-magnetic materials.

(Prior Art) As shown in FIG. 7, in a conventional magnetic sorting device, a feeder 32 equipped with a vibrating device 33 is installed on one side of a machine body 31 so as to be able to vibrate in an inclined manner, and A sorting drum 36 with a built-in magnet is installed facing and parallel to the edge, and the drum 36 and the machine body 31
A belt 38 was installed between the feeder 32 and a guide roll 37 installed on the other side, and a flow rate adjustment device 35 and a gap adjustment device 34 were provided on the discharge side of the feeder 32 (Utility Model Publication No. 11022/1983).

(Problems to be Solved by the Invention) As mentioned above, the conventional magnetic sorting device has an inclined feeder, and a vibration device is attached to the bottom of the feeder, and a flow rate adjustment device and a gap adjustment device are used to separate magnetic metal parts and non-magnetic materials. The discharge amount of the mixture was adjusted to send out an appropriate amount of the mixture, and the magnetic metal parts were attracted to the sorting drum for sorting, which not only made adjusting the flow rate adjustment device and gap adjustment device extremely troublesome. However, since the passage speed of the mixture near the sorting drum becomes very high, the adsorption becomes incomplete and some of the magnetic metal parts fall together with the non-magnetic materials. In addition, in the case of small magnetic metal parts, non-magnetic substances often get trapped inside the magnetic metal parts, creating the problem of having to be re-sorted many times (for example, Japanese Patent Laid-Open No. 57-110347
issue).

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention includes a feeder having a vibrating device installed so that it can vibrate in the horizontal direction, a sorting drum with a built-in magnet facing the feeder,
The above problems were solved by installing the drum horizontally so that magnetic metal parts could be attracted thereto, and by installing a sieve between the sorting drum and the feeder.

That is, in this invention, a feeder equipped with an excitation device that can regulate the excitation conditions and adjust the conveyance speed of the objects to be sorted is installed so as to be able to vibrate in the horizontal direction, and the feeder is installed so as to be able to vibrate in the horizontal direction. A hopper with a flow adjustment plate for adjusting the flow rate of the material is installed, and a sorting drum with built-in magnetism is mounted horizontally on the machine body, facing the feeder to attract magnetic metal parts on the feeder. In a vibrating conveyance type magnetic sorting device that is constructed and has a belt installed between the sorting drum and a guide roll installed on the machine body, a sieve attached to the machine body or the feeder is inserted between the sorting drum and the feeder. This is a vibrating conveyance type magnetic sorting device characterized by the installation of a.

In the above, the sieve can be attached to the machine body or the feeder, and the sorting part of the sieve can be made of a wire mesh or a blind screen.

(Function) As mentioned above, the feeder is installed horizontally,
Since the mixture is conveyed in a predetermined amount at a predetermined speed by the vibration action of the vibrating device, the conveyance speed of the mixture can be easily adjusted.
Furthermore, since the mixture is uniformly spread over the feeder by the vibration action, the efficiency of adsorption of magnetic metal parts onto the sorting drum can be significantly improved. Furthermore, since a sieve is installed between the sorting drum and the feeder, non-magnetic substances trapped in the magnetic metal parts are separated by the sieve, and only the magnetic metal parts can be attracted to the sorting drum.

(Example 1) Next, details of the present invention will be described with reference to an example shown in the accompanying drawings. FIG. 1 is a plan view of an embodiment of the invention, FIG. 2 is a front view, FIG. 3 is a side view, and FIGS. 4 and 5 are perspective views of the sieve.

A vibration conveyance device 3 is horizontally suspended by springs 4, 4 to a body 1 having wheels 2, 2 at the bottom. The vibration conveyance device 3 includes a pair of vibration devices 5, 5 attached to the bottom, a feeder 6, a hopper 7, and a side plate 8.
and a discharge port 9, etc. As the vibration device 5, a known Uras motor (manufactured by Yaskawa Electric Co., Ltd.) or the like is used. A pair of guides 10, 10 are installed in the feeder 6 at a distance larger than the opening of the hopper 7, as shown in FIG. A flow rate adjusting plate 11 is attached to the hopper 7 to adjust the gap between the openings. Above the feeder 6, a magnetic sorting device 12 is suspended from the machine body 1 with bolts 13 and nuts 14 so that its height can be adjusted. The magnetic sorting device 12 has a sorting drum 15 with a built-in permanent magnet installed facing the upper surface of the feeder 6 and parallel to its front edge, and a guide roll 16 installed on one side of the machine body parallel to the sorting drum. A rubber belt 17 is attached between the sorting drum 15 and the guide roll 16. The sorting drum 15 is driven by a motor 21 via a pulley 18, a belt 19, and a pulley 20.

A sieve fixing plate 25 is fixed to the body 1 in parallel with the sorting drum 15. The sieve fixing plate 25
In this case, the sieve 26 passes its tip onto the sorting drum 15.
and the feeder 6. Since the sieve 26 is fixed to the body 1, vibrations are not transmitted. The sieve 26 may be a wire mesh 27 shown in FIG. 4 or a blind mesh 2 shown in FIG.
8 (a net made of parallel rods, wires, etc.) can be used.

The operation of the present invention will be explained based on the above embodiment. A mixture of magnetic metal parts and non-magnetic materials is charged into the hopper 7, and the vibrating device 5 of the vibrating conveyance device 3 is driven. The amount of mixture discharged from the hopper 7 is controlled by a flow rate control plate 11. Further, the conveyance speed of the mixture can be adjusted by adjusting the opening angle of unbalanced weights built into the vibration devices 5, 5. The mixture that has passed through the opening of the hopper 7 is guided by the guides 10, 10 on the feeder 6 and moves to the lower part of the sorting drum 15 of the magnetic sorting device 12, and the magnetic metal parts in the mixture are removed from the sorting drum 15.
is adsorbed to. At this time, if the magnetic metal parts are fine parts such as needles, non-magnetic substances will be attracted while being trapped inside the magnetic metal parts, but in the embodiment described above, a sieve 26 was installed between the feeder 6 and the sorting drum 15. Therefore, only magnetic metal parts pass through the mesh of the sieve, and non-magnetic materials fall onto the feeder 6. The magnetic metal parts thus attracted to the sorting drum 15 are conveyed to the guide roll 16 side by the belt 17 and are subjected to a demagnetizing action by the demagnetizer 23. Then belt 17
falls into the magnetic material container (not shown) from the point where it becomes the outward path. If the magnetic metal parts stick tightly to the belt and are difficult to fall, spraying them with a shower will make them fall easily.

On the other hand, the non-magnetic material moves on the feeder 6 and falls into the non-magnetic material container (not shown) through the discharge port 9, and the sorting operation is completed.

(Embodiment 2) Next, another embodiment of the present invention will be described based on FIG. FIG. 6 is a front view. This embodiment is the same as the above-mentioned embodiment 1 except that the sieve is attached to the feeder, so the same numbers are used for the same parts and specific explanations are omitted.

That is, a sieve fixing plate 25a is fixed to the feeder 6 in parallel with the sorting drum 15. The fixed plate 2
A sieve 26a is attached to 5a so as to be located between the sorting drum 15 and the feeder 6. When the sieve 26a is directly attached to the feeder 6 in this manner, the sieve 26a also vibrates, which has the effect of loosening the non-magnetic substances trapped in the magnetic metal parts and separating the magnetic metal parts and the non-magnetic substances. However, ultra-light magnetic metal parts must be placed in the sorting drum 15.
There is a high possibility that the sieve 26a will be repelled by the vibration of the tip of the sieve 26a after being adsorbed to the sieve 26a.
It is unsuitable compared to

(Effects of the Invention) According to the present invention, the feeder equipped with an excitation device that can regulate the excitation conditions is installed so that it can vibrate in the horizontal direction, so the amount and conveyance speed of the mixture conveyed on the feeder can be easily adjusted. can. In addition, the mixture is conveyed to the bottom of the sorting drum while spreading uniformly, and is separated by a sieve while being attracted to the sorting drum, so there is no risk of non-magnetic substances being trapped in the magnetic metal parts, and only the magnetic metal parts are collected. It can be reliably adsorbed to the sorting drum. Therefore, there are various effects such as eliminating the need for repeated selection.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of the invention, FIG. 2 is a front view, FIG. 3 is a side view, FIG. 4 is a perspective view of a wire mesh sieve, and FIG. 5 is a perspective view of a blind screen.
FIG. 6 is a front view of another embodiment of the present invention, and FIG. 7 is a front view of a conventional device. 1... Airframe, 3... Vibration conveyance device, 5... Vibration device, 6... Feeder, 7... Hopper, 11
...Flow control plate, 12...Magnetic sorting device, 15...
... Sorting drum, 16 ... Guide roll, 23 ... Demagnetizer, 25, 25a ... Sieve fixing plate, 26, 26a
... Sieve, 27 ... Wire mesh, 28 ... Blind screen, 31
... Airframe, 32 ... Feeder, 33 ... Vibration device, 36 ... Sorting drum, 37 ... Guide roll.

Claims (1)

[Scope of Claims] 1. A feeder equipped with an excitation device capable of regulating excitation conditions and adjusting the conveyance speed of objects to be sorted is installed on the machine body so as to be able to vibrate in the horizontal direction, and a A hopper with a flow rate adjustment plate for adjusting the flow rate of the material to be sorted is installed, and a sorting drum with built-in magnetism is placed on the tip side of the feeder, and the machine is placed horizontally, facing the feeder in order to attract magnetic metal parts on the feeder. In a vibrating conveyance type magnetic sorting device in which a belt is installed between the sorting drum and a guide roll installed on the machine body, the apparatus is attached to the machine body or the feeder between the sorting drum and the feeder. A vibrating conveyance type magnetic separation device characterized by having a sieve installed. 2. The vibrating conveyance magnetic sorting device according to claim 1, wherein the sieve is a wire mesh or a blind screen.