JP2006306567A - Magnet conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magnet conveyor capable of reliably and smoothly conveying articles without damages during the conveyance, and reliably and smoothly demagnetizing the magnetized articles during the conveyance. <P>SOLUTION: The magnet conveyor comprises a conveyance face which is formed to be higher in position from one end to the other end to place articles thereon and convey them, upper and lower sprockets 4, 5 arranged on the upper position and the lower position on the back side of the conveyance face, a chain 6 which is wrapped around the upper and lower sprockets 4, 5 to be moved parallel to the back side of the conveyance face as the sprockets are turned, and a magnet 7 mounted along the longitudinal direction of the chain. The conveyance face consists of a belt 9 formed of a flexible material and moved in the same direction at the same speed as the chain 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a magnet conveyer, and more particularly to a magnet conveyer that can be smoothly conveyed upward without damaging the surface of an object to be conveyed.

Magnet conveyors that transport objects to be conveyed using magnetic force are manufactured, for example, as devices for transporting metal scrap discharged from machine tools such as press devices and shearing devices, and metal parts such as nails and screws. It is widely used in the field, and there are various forms depending on the application.
There are two types of magnet conveyors, one that conveys the object to be conveyed in the horizontal direction and one that conveys the object in the vertical direction. Suitable for transporting to a feeder such as a parts feeder.

However, it is difficult for a magnetic conveyor that performs conveyance in the vertical direction to sufficiently apply a magnetic force to the object to be conveyed over the entire length of the conveying surface. In some cases, it could not be conveyed to the upper end.
Therefore, the present applicant has studied a magnetic conveyor that can reliably convey the object to be conveyed in the vertical direction, and has already succeeded in developing the same (see Patent Documents 1 to 3).

JP 2003-276846 A JP 2004-99260 A JP 2003-217385 A

The above-described magnet conveyor developed by the present applicant is superior to the conventional magnet conveyor in that the object to be conveyed can be reliably conveyed to the upper end, but has the following problems. It was.
This problem is that the transport surface is formed of a metal plate such as a SUS plate, so that when the transported object moves along the transport surface, the surface of the transported object is scratched by rubbing against the transport surface. It means that there is a risk of being attached. Specifically, the surface of the object to be transported may be scratched, or when the surface of the object to be transported is plated, the plating may be partially peeled off.
This is a problem common to conventional magnetic conveyors of the same type, and a solution to this problem has been required.

Further, since the object to be conveyed conveyed on the magnet conveyor is magnetized, in order to demagnetize it, the object to be conveyed conveyed on the magnet conveyor can be subsequently conveyed to the demagnetizer. is there.
However, since the objects to be transported that are magnetized are stuck together, they may not be smoothly transported to the demagnetizer, and even if they are transported to the demagnetizer, individual objects to be transported May not be sufficiently demagnetized.

  The present invention has been made to solve the above-mentioned problems, and in a magnet conveyor that conveys an object to be conveyed by magnetic force, the object to be conveyed can be reliably and smoothly conveyed without being damaged during conveyance, It is an object of the present invention to provide a magnet conveyor that can reliably and smoothly demagnetize the object to be conveyed that is magnetized during conveyance.

  The invention according to claim 1 is a transfer surface formed so as to be at a high position from one end portion toward the other end portion, and transports an object to be transferred on its surface, and an upper position on the back side of the transfer surface. And upper and lower sprockets arranged at lower positions, a chain wound around these upper and lower sprockets and moving in parallel with the back surface of the conveying surface as the sprocket rotates, and attached along the length direction of the chain The present invention relates to a magnet conveyor comprising a belt made of a soft material configured to move in the same direction at the same speed as the chain.

  In the invention according to claim 2, the conveyance surface includes a vertical surface that conveys the object to be conveyed in a vertically upward direction, and a horizontal surface that conveys the object to be conveyed that has reached the upper end of the vertical surface in a horizontal direction. The magnet conveyor according to claim 1, wherein the vertical plane and the horizontal plane are continuously formed by the belt.

  The invention according to claim 3 is configured such that the chain moves only along the back surface of the vertical surface of the transport surface, and a demagnetizer is disposed below the horizontal surface, 3. A belt moving parallel to and in the same direction as the horizontal plane is disposed above the horizontal plane, and the object to be conveyed is nipped and conveyed between the belt and the horizontal plane. Relates to the magnet conveyor.

According to the first aspect of the present invention, since the transport surface is formed of a belt made of a soft material, the transported object is scratched by rubbing against the transport surface when the transported object moves along the transport surface. There is no risk of being attached.
In addition, since the belt made of the soft material moves in the same direction at the same speed as the chain to which the magnet is attached, there is no friction between the conveyor surface and the object to be conveyed is more reliably prevented from being damaged. In addition to being peeled off, a certain magnetic force can be reliably applied to the object being conveyed, and the object to be conveyed can be reliably conveyed upward without dropping on the way.

  According to the second aspect of the present invention, since the object to be conveyed can be moved in the vertical direction and then moved in the horizontal direction, the object to be conveyed can be smoothly moved to a desired place. In addition, this can be realized with a simple device configuration.

  According to the third aspect of the present invention, the object to be conveyed, which is magnetized when conveyed along the vertical surface of the conveying surface made of a soft material belt, is placed on the same belt as it is, and subsequently to the demagnetizing device. It can be supplied and demagnetized, and the conveyed object is conveyed while being sandwiched between the horizontal plane and the belt provided above it. Therefore, the object to be conveyed can be smoothly conveyed to the demagnetizer and demagnetized reliably.

FIG. 1 is a cross-sectional view of the magnet conveyor according to the present invention as viewed from the side, and FIG. 2 is a partial cross-sectional view of the magnet conveyor according to the present invention as viewed from the front (viewed from the left side in FIG. 1). .
The magnet conveyor according to the present invention is a device that transports metal parts such as metal parts and metal scraps that can be attracted to a magnet from a lower position to an upper position by attracting them to a transport surface using magnetic force.

The transport surface (1) is a surface on which the object to be transported is transported on the surface, and is formed so as to be at a high position from one end to the other end.
In the illustrated example, the transport surface (1) is formed of a vertical surface (2) formed in the vertical direction and a horizontal surface (3) formed continuously with the upper end of the vertical surface (2). . However, in the present invention, the shape of the transport surface (1) is not necessarily limited to the illustrated example. For example, the vertical surface (2) may be a slightly inclined surface, or below the vertical surface (2). Further, it is possible to continuously form an arcuate curved surface and a horizontal surface.

In the present invention, the conveying surface (1) is formed of a strip-like endless belt made of a soft material, and the endless belt is stretched around the outer peripheral surfaces of the plurality of pulleys (10) and the rollers (12) to form a driving pulley. Rotate in a certain direction with the rotation of. Of these endless belts, the conveying surface (1) is constituted by only the half-circumferential portion constituting the vertical surface (2) and the horizontal surface (3), and the remaining half-circumferential portion is The transport surface is not configured. In FIG. 2, only the upper part (15) of the part that does not constitute the transport surface is shown, and the lower part is omitted so that the inside can be seen.
The rotation direction of the belt forming the conveying surface (1) is set to a direction in which the object to be conveyed placed on the surface can be conveyed from a lower position to an upper position. As shown, the belt is set to move upward in the vertical plane (2).

The belt forming the conveying surface (1) can be formed from a known soft material having flexibility that can be wound around a pulley as an endless shape and rotated, such as rubber, cloth, soft synthetic resin, etc. Formed from.
In the magnet conveyor according to the present invention, the object to be conveyed is rubbed and scratched on the conveying surface by forming the conveying surface (1) from a soft material such as rubber instead of a metal plate as in the prior art. Is prevented from sticking.

Sprockets (4) and (5) are disposed on the upper part and the lower part of the vertical surface (2) at positions close to the back surface (surface opposite to the conveying surface) of the vertical surface (2). An endless chain (6) is wound from (4) to the lower sprocket (5).
The upper and lower sprockets (4) and (5) are composed of a pair of left and right sprockets arranged in parallel in the width direction of the conveying surface (1) and rotating synchronously (see FIG. 2). The chain (6) is wound around each sprocket.

The chain (6) is located in the inner region of the endless belt forming the conveying surface (1), and is close to the back surface of the vertical surface (2) as the sprockets (4) and (5) rotate. , It moves so as to be parallel from the bottom to the top along the vertical plane (2).
In the present invention, the endless belt forming the conveying surface (1) continuously moves from the vertical surface to the horizontal plane, but the chain (6) is connected to the vertical surface (2) constituting the conveying surface (1) and the horizontal surface. Of (3), it moves only along the back surface of the vertical surface (2).

Magnets (7) are attached to the surface (outer side surface) of the chain (6) along the length direction of the chain, and these magnets (7) move along the vertical surface ( Move from bottom to top along 2).
The plurality of magnets (7) attached along the chain (6) may be attached so that the magnets are in close contact with each other as shown in the figure, or may be attached at regular intervals.

The rotational speed and rotational direction of the sprockets (4), (5) and the pulley (10) are such that the chain (6) and the belt forming the conveying surface (1) are at the same speed in the same direction (down in the vertical surface (2)). It is set to move in the upward direction).
In the illustrated example, this setting is performed by rotating the pulley (10) and the sprocket (4) located above the vertical plane (2) coaxially and connecting them to the drive shaft of one motor (13). Is made by.
Since the chain (6) and the belt forming the conveying surface (1) are set to move in the same direction at the same speed, there is no friction between the conveying surface and the object to be conveyed is damaged. It is possible to more reliably prevent sticking, and a certain magnetic force can be reliably applied to the object to be conveyed while being conveyed along the surface of the conveying surface. It is possible to reliably convey without dropping in the middle.

In the magnet conveyor according to the present invention, the demagnetizer (8) is disposed below the horizontal surface (3) formed continuously from the upper end of the vertical surface (2).
As shown in FIG. 2, the demagnetizing device (8) is arranged in the inner region of the endless belt forming the conveying surface (1) and has a structure built in the magnet conveyor of the present invention.
As a result, in one apparatus, the object to be transported can be demagnetized by being transported upward in a state of being placed on a belt, and then being placed on the same belt as it is and subsequently supplied to the demagnetizer. In this way, a series of operations from conveyance to demagnetization can be performed.
The structure of the demagnetizing device (8) is not particularly limited. For example, a known demagnetized object traveling type consisting of a magnetic core and a coil can be used, a closed magnetic field can be used, or an open magnetic field can be used. It may be a thing.

Above the horizontal plane (3), a belt (9) that moves parallel to and in the same direction as the horizontal plane (2) is disposed.
The belt (9) is composed of an endless belt stretched over a pulley (11) disposed above the horizontal plane (2), and the lower belt is driven by the motor (14) as a pulley (11). Is rotated in parallel and in the same direction with the belt constituting the horizontal plane (2) at the same speed.
As a result, the object to be conveyed (A) is conveyed while being sandwiched between the horizontal surface (2) and the belt (9), so that the solid object to be conveyed is surely transferred to the demagnetizer one by one while being loosened. As a result, the object to be conveyed can be smoothly conveyed to the demagnetizing device and reliably demagnetized (see FIGS. 3 and 4).

The distance between the belt (9) and the horizontal plane (2) is preferably set to be the same as or slightly larger than the height of the object to be conveyed (height in the conveying posture).
By setting in this way, the solid object to be transported is surely loosened and is sandwiched between the horizontal surface (2) and the belt (9) in a single state, so that the transport can be performed smoothly. It becomes possible to demagnetize the conveyed object reliably.

  INDUSTRIAL APPLICABILITY The present invention can be used as a conveyor for supplying metal parts and products such as nails, screws, pins, and springs to parts feeders and assembly devices.

It is sectional drawing which looked at the magnet conveyor which concerns on this invention from the side surface direction. It is the partial sectional view which looked at the magnet conveyor concerning the present invention from the front direction. It is a schematic side view which shows the effect | action of the magnet conveyor which concerns on this invention. It is a schematic front view which shows the effect | action of the magnet conveyor which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveyance surface 2 Vertical surface 3 Horizontal surface 4 Upper sprocket 5 Lower sprocket 6 Chain 7 Magnet 8 Demagnetizing device 9 Belt 10 Pulley 11 Pulley 12 Roller 13 Motor 14 Motor A Conveyed object

Claims (3)

  It is formed so as to be at a high position from one end portion to the other end portion, and is arranged at the upper surface and lower position on the rear surface side of the conveying surface, and the conveying surface on which the object to be conveyed is conveyed An upper and lower sprocket, a chain that is wound around these upper and lower sprockets and moves parallel to the back surface of the conveying surface as the sprocket rotates, and a magnet attached along the length direction of the chain, The said conveyor surface is formed from the belt made from a soft material comprised so that it might move in the same direction at the same speed as the said chain, The magnet conveyor characterized by the above-mentioned.   The transport surface includes a vertical surface that transports a transported object in a vertically upward direction, and a horizontal surface that transports a transported object that has reached the upper end of the vertical surface in a horizontal direction, and the vertical surface and the horizontal surface are the belts. The magnet conveyor according to claim 1, wherein the magnet conveyor is formed continuously.   The chain is configured to move only along the back surface of the vertical surface of the transport surface, and a demagnetizing device is disposed below the horizontal surface, and the horizontal surface is disposed above the horizontal surface. 3. A magnet conveyor according to claim 2, wherein a belt moving in parallel and in the same direction is provided, and the object to be conveyed is sandwiched and conveyed between the belt and a horizontal plane.

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