JP2007126282A - Magnetic force type metallic piece carrying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magnetic force type metallic piece carrying device capable of surely preventing a bridge phenomenon of a stored metallic part, foramble in a small size, and usable even for the purpose except for carrying the metallic part. <P>SOLUTION: This carrying device carries a metallic piece by a magnetic force system. The carrying device is characterized in that a storage part having an opening part on the upper side and having a downward curving circular arc-shaped bottom surface is installed in a carrying surface lower part, and a downward slantingly installed delivery guide part crossing a carrying surface half surface on the side for downward moving a magnet plate is installed on a carrying surface, and the curvature center of the contour of a connecting part between the bottom surface and the carrying surface of the storage part is set substantially concentric with a rotary shaft of a downward arranged disk among disks. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a magnetic metal piece conveying device that can easily eliminate a bridging phenomenon that occurs when metal pieces are caught or entangled with each other, and can be formed in a small size.

  The magnetic metal piece conveying device is particularly used for conveying small assembly parts such as bolts, nuts or screws by a predetermined amount. These small parts for assembly are accommodated in an accommodating portion provided in the magnetic metal piece conveyance device, and are conveyed by a predetermined amount to a predetermined place along the conveyance surface of the magnetic metal piece conveyance device.

Patent Document 1 discloses an example of such a magnetic metal piece conveying device. FIG. 6 shows a magnetic metal piece conveying device disclosed in Patent Document 1.
A magnetic metal piece conveying device (D) of Patent Document 1 includes a pair of upper and lower sprockets (S) and a chain ring (C) that connects the pair of sprockets (S). A plurality of magnet plates (M) are attached to the chain ring (C) at a predetermined interval.
The conveyance surface (F) on which the metal piece is conveyed is arranged in parallel to the rotation axis of the sprocket (S), and the magnet plate (M) is attracted to the back side of the conveyance surface (F) and the conveyance surface (F ) Is sucked through and conveyed upward.
An accommodation part (A) in which a metal part is accommodated is arranged at the lower part of the transport surface (F).

According to the transporting device (D) having the above structure, the metal part is taken out from a certain place in the accommodating portion (A). Such removal of a certain portion easily causes a bridge phenomenon (a phenomenon in which components arranged inside the housing portion (A) are caught or entangled).
In order to prevent the occurrence of such a bridging phenomenon, the transport device (D) disclosed in Patent Document 1 includes a vibration device (V) that vibrates the accommodating portion (A).

JP 2003-276846 A

The conveyance device (D) as disclosed in Patent Document 1 needs to be provided with the vibration device (V) separately in order to prevent the bridge phenomenon from occurring. And in order to make sure that the bridge phenomenon occurrence prevention function is exhibited, it is necessary to always vibrate the accommodating portion (A) with the vibration device (V). Since the vibration from the vibration device (V) is also transmitted to the transport surface (F), there is a problem that a component being transported falls due to the vibration.
In addition, vibration from the vibration device (V) causes mechanical noise of the transfer device (D).
Furthermore, the apparatus is increased in size, and it is difficult to use the transfer device (D) for purposes other than the purpose of transferring metal parts.

  The present invention has been made in view of the above circumstances, and can reliably prevent the bridging phenomenon of housed metal parts, can be formed in a small size, and can be used for purposes other than the transportation of metal parts. An object is to provide a transport device.

According to the first aspect of the present invention, a pair of upper and lower drive disks, an annular band connecting the pair of drive disks, a motor connected to one of the pair of drive disks, and the annular band A magnetic metal piece transport device comprising a drive mechanism comprising a magnet plate to be attached and a transport surface disposed at right angles to the rotational axis of the drive disk and comprising a casing housing the drive mechanism, wherein the transport A metal piece housing portion having an opening on the upper side and an arc-shaped bottom surface that curves downward is attached to the lower surface, and the magnet plate on the side on which the magnet plate moves downward is attached to the transport surface. A metal piece discharge guide portion that is mounted so as to cross the conveyance surface half and be inclined downward is attached, and the center of curvature of the contour of the connection portion between the bottom surface of the metal piece housing portion and the conveyance surface is the center of the drive disk. A magnetic-metal-strip conveying device, characterized in that the rotary shaft substantially concentric with the drive disc is arranged downward.
The invention according to claim 2 is the magnetic metal piece conveying device according to claim 1, wherein the metal piece housing portion is arranged so as to receive the cutting waste discharged from the metal cutting device. .
In a third aspect of the present invention, a support shaft is attached to the surface of the casing on the side facing the transport surface, and the support shaft increases the downward inclination of the metal piece discharge guide portion. The magnetic metal piece conveying device according to claim 1, wherein the casing is rotatably supported.
According to a fourth aspect of the present invention, there is provided the magnetic metal piece conveying device according to the first aspect, wherein the metal piece containing portion is connected to a container containing metal cutting waste together with machine oil through a pipe line. It is.

According to the first aspect of the present invention, the center of curvature of the moving path of the magnet plate and the center of curvature of the connecting portion contour of the accommodating portion bottom surface and the conveying surface are substantially concentric. An agitation action occurs, and the bridge phenomenon can be suitably prevented. Furthermore, since the bottom surface of the housing portion is curved in an arc shape, the metal piece can be suitably moved inside the housing portion, and the stirring action can be promoted. Therefore, it is possible to reliably prevent the occurrence of the bridge phenomenon, and it is possible to perform suitable metal piece conveyance.
Moreover, since it is not necessary to provide additional equipment for preventing the occurrence of the bridging phenomenon, the apparatus can be reduced in size.
According to the invention described in claim 2, since the apparatus can be downsized as described above, for example, it becomes possible to directly receive cutting waste generated from a metal cutting apparatus such as a milling machine or a drilling machine. Also, it can be suitably used for conveying cutting waste.
According to invention of Claim 3, a casing can be inclined as desired and the bridging phenomenon inhibitory effect can be heightened further.
According to invention of Claim 4, the metal waste discharged | emitted from metal cutting processing apparatuses, such as a milling machine or a drilling machine distribute | arranged to the distant place, can be conveyed suitably.

Hereinafter, an embodiment of a magnetic metal piece conveying device according to the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a schematic configuration of a magnetic metal piece conveying device. FIG. 2 is a side view of the magnetic metal piece conveying device shown in FIG.
The magnetic metal piece conveying device (1) includes a casing (2) formed in a substantially rectangular parallelepiped shape and a drive mechanism (3) arranged inside the casing (2).

The surface that appears on the front side of the casing (2) is the transport surface (21). The conveying surface (21) extends vertically upward with respect to the ground and has a smooth surface. A metal piece accommodating part (4) is attached to the lower part of the conveying surface (21), and the metal piece accommodating part (4) protrudes from the conveying surface (21) toward the front side.
The metal piece housing part (4) includes a bottom part (41) that curves downward and side parts (42) that protrude upward from both ends of the bottom part (41). The side part (42) is fixed to the side part of the casing (2). The bottom (41) is inclined downward from the front side edge toward the connection edge of the transport surface (21).
The metal piece housing part (4) formed in this way opens to the upper side and the front side, and metal scraps discharged from a metal small part such as a bolt, nut, screw or cutting machine are supplied from this opening part. . And these metal pieces, such as small metal parts and metal scraps, are accommodated in the metal piece accommodating part (4).

  A metal piece discharge guide portion (5) is attached to the upper portion of the transport surface (21). As shown in FIG. 1, the metal piece discharge guide portion (5) crosses the right half surface of the transport surface (21) and is inclined downward, and protrudes rightward from the right side surface of the casing (2). Further, as shown in FIG. 2, the metal piece discharge guide portion (5) is formed in a substantially U-shaped cross section, and the rear side wall of the metal piece discharge guide portion (5) is connected to the right side surface portion of the casing (2), Fixed.

The drive mechanism (3) includes a disk-shaped drive disk (31) arranged in a pair in the upper and lower directions and an annular band (32) connecting the pair of drive disks (31) to each other inside the casing (2). .
When the drive disk (31) is a sprocket, a chain is used for the annular band (32), and when the drive disk (31) is a V-type pulley, the annular band (32) In the case where a V-type belt is used and the drive disk (31) is a timing pulley, a timing belt can be used for the annular band (32). The present invention is not limited to this, and combinations similar to these are also included in the drive disk (31) and the annular belt (32).
A magnet plate (33) that is formed in a plurality of rectangular shapes in front view and formed in a flat plate shape is attached to the annular band (32), and the magnet plates (33) are arranged at predetermined intervals.

The drive disk (31) is rotatably attached to the surface on the back side of the casing (2). The drive disk (31) arranged on the upper side of the pair of drive disks (31) is connected to the motor (6) attached to the back side of the casing (2), and the driving force from the motor (6) is transmitted. Further, the rotation axis of these drive disks (31) is perpendicular to the transport surface (21).
As shown in FIG. 1, the rotation axis of the drive disk (31) is substantially concentric with the center of curvature of the semicircular arc connecting portion contour between the metal piece receiving portion (4) and the conveying surface (21). A drive disk (31) arranged on the side is arranged.

  A base portion (7) is disposed below the casing (2), and a support column (71) is provided on the back side of the casing (2) so as to stand upward from the upper surface of the base portion (7). . The back surface of the casing (2) is connected to the support column (71) via the support shaft (72), and the support shaft (72) rotatably supports the casing (2).

The motor (6) rotates the upper drive disk (31) clockwise as viewed from the front. Thereby, the magnet plate (33) positioned on the right half surface side of the transport surface (21) moves downward. The magnet plate (33) located on the left half surface side of the transport surface (21) moves upward while adsorbing the transport surface (21).
The metal piece arranged in the metal piece container (4) is attracted to the magnet plate (33) moving upward, and slides on the transfer surface (21) and moves upward. Then, when the upper drive disk (31) moves the position of the magnet plate (33) from the left half surface of the transport surface (21) to the right half surface and the magnet moving direction is reversed, the magnet plate (33) is attracted. The moving direction of the metal piece is also reversed. And a metal piece slides on a conveyance surface (21) right half surface, and moves below.
When the metal piece collides with the bottom surface of the metal piece discharge guide portion (5), the bottom surface of the metal piece discharge guide portion (5) prevents the metal piece from moving downward, and the metal piece is released from the attraction of the magnet plate (33). Is done. Since the metal piece discharge guide part (5) is inclined downward, the metal piece released from the magnetic force of the magnet plate (33) is guided to the metal piece discharge guide part (5) according to gravity, Move down.
The tip (right end) of the metal piece discharge guide part (5) is connected to a device or the like used in the next process (not shown), and the metal piece discharged from the metal piece discharge guide part (5) is used in the next process. Used.

The magnet plate (33) from which the adsorption of the metal piece is released by the metal piece discharge guide part (5) further moves downward and reaches the position of the metal piece housing part (4). And this magnet plate (33) passes the inside of the connection outline of a metal piece accommodating part (4) and a conveyance surface (21), adsorb | sucking the metal piece in a metal piece accommodating part (4).
Thereby, the turning force centering on the rotating shaft of the lower drive disk (31) is applied to the metal piece group stored in the metal piece housing part (4), and the inside of the metal piece housing part (4) The stirring action occurs.
As a result, while the conveying device (1) is operating, the stirring action continues to occur in the metal piece housing part (4), and the occurrence of blocking phenomenon in the metal piece housing part (4) is reliably prevented. It will be possible.

FIG. 3 shows a state in which the casing (2) is rotated around the support shaft (72) and inclined at a predetermined angle. By this inclination, the angle of the metal piece discharge guide part (5) can be inclined further downward.
In addition, you may employ | adopt the form which connects a support shaft (72) with the rotating shaft of a motor, and rotates a casing (2) with rotation of a support shaft (72). By reciprocatingly rotating the motor connected to the support shaft (72) within a range of a predetermined rotation angle, the casing (72) can be caused to reciprocate in the left-right direction.
Since the metal piece housing part (4) moves together with the casing (2), a force in the left-right direction can be applied to the metal piece housed in the metal piece housing part (4). Thereby, in addition to the turning force accompanying gravity and the movement of the magnet plate (33), a swinging force in the left-right direction can be added to the metal piece, so that the stirring action inside the metal piece housing portion (4) is further enhanced. It becomes.
In addition, the repeated tilting operation of the casing (2) can be performed by pressing the side surface of the casing (2) with a pressing means such as a cylinder in addition to the means by the motor, and the casing (2) with respect to the support shaft (72). It is also possible to adopt means such as rotating and tilting.

FIG. 4 is a diagram showing another usage pattern of the magnetic metal piece conveying device (1).
The magnetic metal piece conveying device (1) is arranged in a container (8) in which cutting scraps such as a milling machine and a drilling machine are accumulated. The back side of the casing (2) is connected and fixed to the inner wall surface of the container (8) by fixing means such as screws and bolts.
The metal piece container (4) protrudes to the front side and traverses the inside of the container (8). Thereby, the metal cutting waste accumulated in the container (8) is received by the metal piece container (4).

Since the magnetic metal piece conveying device (1) of the present invention is formed very thin, it can be easily arranged and fixed in the container (8) for storing cutting waste in this way. Since the blocking phenomenon can be prevented without requiring a special device for preventing the blocking phenomenon, the container (8) can be preferably used even when the container (8) is filled with machine oil.
In addition, when the conveying device (1) is arranged in the container (8) filled with machine oil in this way, the surface on the back side of the conveying surface (21) of the magnet plate (33) and the casing (2) Friction due to sliding with the machine oil is alleviated by machine oil. Therefore, wear of the casing (2) or the magnet plate (33) can be minimized.

FIG. 5 is a diagram showing another usage pattern of the magnetic metal piece conveying device (1).
In the example shown in FIG. 4, the configuration in which the magnetic metal piece conveying device (1) is arranged inside the container (8) is shown, but the front side of the metal piece container (4) is closed and only the upper side is opened. You may employ | adopt the form which makes it a container shape and connects this metal piece accommodating part (4) and a container (8) by the pipe line (81). A pump (82) is arranged in the middle of the pipeline, and the pump (82) supplies both the fine metal scrap and the machine oil accommodated in the container (8) to the metal piece accommodating part (4).
A pipe (83) further extends from the metal piece container (4), and the machine oil sent to the metal piece container (4) by the pump (84) disposed in the middle of the pipe (83) is stored in the container. Return to (8).
In the container (8), for example, metal scraps such as metal powder removed from the machine component conveyor are accumulated.
A packing is disposed between the metal piece container (4) and the conveying surface (21) so that machine oil does not leak from the metal piece container (4).

  By forming a circulation path using pipe lines (81, 83) as shown in FIG. 5, it is possible to construct a filtration system for removing metal pieces from machine oil. Such a configuration can be suitably used to remove metal pieces from a remote metal piece collection container (8).

  The present invention is suitably applied to the transportation of small metal parts such as screws and screws.

It is a schematic front view of the magnetic-type metal piece conveying apparatus which concerns on this invention. It is a schematic side view of the magnetic-type metal piece conveying apparatus which concerns on this invention. It is a figure which shows the state which inclined the casing of the magnetic-type metal piece conveying apparatus which concerns on this invention. It is a figure which shows an example of the usage pattern of the magnetic-type metal piece conveying apparatus which concerns on this invention. It is a figure which shows an example of the usage pattern of the magnetic-type metal piece conveying apparatus which concerns on this invention. It is a figure which shows the conventional magnetic type metal piece conveyance apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Magnetic-type metal piece conveying apparatus 2 ... Casing 3 ... Drive mechanism 31 ... Drive disk 32 ... Ring belt 33 ... Magnet plate 4 ...... Metal piece housing part 5 ...... Metal piece discharge guide part 6 ...... Motor 72... Support shaft 8 ...... Container 81. ... Pipe

Claims (4)

A drive mechanism comprising: a pair of upper and lower drive disks; an annular band connecting the pair of drive disks; a motor connected to one of the pair of drive disks; and a magnet plate attached to the annular band. When,
A magnetic metal piece transport device comprising a casing having a transport surface arranged at right angles to the rotation axis of the drive disk and containing the drive mechanism,
At the lower part of the transport surface, a metal piece housing part having an opening on the upper side and an arc-shaped bottom surface curved downward is attached,
A metal piece discharge guide portion is attached to the transport surface, the metal plate is mounted so as to incline downward while traversing the transport surface half surface on the side where the magnet plate moves downward.
A magnetic metal, characterized in that the center of curvature of the contour of the connecting portion between the bottom surface of the metal piece housing portion and the transport surface is substantially concentric with the rotational axis of the drive disk disposed below the drive disk. Single conveying device.   The magnetic metal piece conveying device according to claim 1, wherein the metal piece containing portion is disposed so as to receive cutting waste discharged from the metal cutting device. A support shaft is attached to the surface of the casing on the side facing the transport surface,
2. The magnetic metal piece conveying apparatus according to claim 1, wherein the support shaft rotatably supports the casing so as to increase a downward inclination of the metal piece discharge guide portion. The magnetic metal piece conveying device according to claim 1, wherein the metal piece containing portion is connected to a container containing metal cutting waste together with machine oil through a pipe line.

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