JP2012071955A - Sorting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sorting device which facilitates cleaning of attached iron powders upon change in direction and which can operate smoothly even in a harsh environment such as refrigeration environment in the sorting device which sorts conveying products by flicking the conveying products away from a conveyer to a shoot or the like.SOLUTION: In the sorting device which sorts the conveying products by flicking the conveying products away from a conveyer side, a stator section A side is configured with an electromagnet, a permanent magnet at a rotator side B is arranged in a rotating magnetic field of the electromagnet, and the rotator 6 is driven through the permanent magnet by utilizing a vertical direction magnetic field of the rotating magnetic field so that a direction of a drive shaft 4 of a drive roller 5 for sorting coupled to the rotator 6 may become an arbitrary radial direction.

Description

  The present invention relates to a sorting device, and in particular, in a sorting device that sorts a conveyed product by discharging it from a conveyor to a chute, etc., when performing the direction change, facilitates cleaning of iron powder and the like that adheres, and The present invention relates to a sorting apparatus that can operate smoothly even in a severe environment such as a freezing environment.

  2. Description of the Related Art Conventionally, in a sorting apparatus that sorts a conveyed product by discharging it from a conveyor to a chute, for example, there is a method described in Patent Document 1 as a method for reducing noise generated in a mechanism portion.

By the way, the sorting apparatus using the conveyor described in Patent Document 1 is configured by arranging a plurality of cells. Each cell has a transport roller attached to both ends of the rotating shaft, and a central portion of the rotating shaft. A magnetic cylinder that is integrally attached to the magnetic cylinder, a magnetic disk that is attached to the tip of the drive shaft in a direction orthogonal to the rotation axis, and is arranged close to the magnetic cylinder so that the magnetic cylinder is driven, and driving And turning means capable of changing the direction of the conveying roller around the shaft.
Therefore, since the magnetic cylinder and the magnetic disk constitute a non-contact power transmission mechanism, there is an advantage that noise is reduced as compared with the one using a mechanical transmission device.

However, in this sorting apparatus, the driving force between the magnetic disk and the magnetic cylinder is generated by the attractive force and the repulsive force of the permanent magnet, and the driving force for the rotating disk must be performed by a motor connected to the rotating disk. The reliability of the motor drive section has been reduced due to the increased noise and the number of parts.
In addition, since permanent magnets are used for both the rotating magnetic disk and the magnetic cylinder, when iron powder or the like generated by equipment wear enters the drive mechanism, it is always attracted to the permanent magnets. Therefore, cleaning is difficult, and the driving force cannot be adjusted with a permanent magnet due to its characteristics.

JP 2009-137687 A

  The present invention provides a sorting device that sorts transported items from a transport conveyor to a chute or the like, and facilitates cleaning of adhering iron powder and the like in a refrigeration environment when the direction is changed. An object of the present invention is to provide a sorting apparatus that can operate smoothly even in an environment.

  In order to achieve the above object, the sorting apparatus of the present invention is a sorting apparatus that performs sorting by discharging a conveyed product from the conveyor side, and the stator side is composed of an electromagnet and rotates in its rotating magnetic field. A permanent magnet on the child side is arranged, the rotor is driven through the permanent magnet using the vertical magnetic field of the rotating magnetic field, and the direction of the drive shaft of the sorting drive roller connected to the rotor is arbitrarily set It is characterized by being driven in the radial direction.

  Further, the sorting device of the present invention is a sorting device that sorts transported items from the conveyor side, and a rotor made of an aluminum cylinder is arranged in the rotating magnetic field on the stator side, so that the rotating magnetic field A vertical magnetic field is used to drive an aluminum cylindrical rotor, and the direction of the drive shaft of a sorting drive roller connected to the rotor is driven in an arbitrary radial direction.

  In this case, it is possible to obtain a rotating magnetic field by driving a stator portion composed of three coils that generate magnetic flux in the direction perpendicular to the rotating magnetic field and an iron core with a three-phase alternating current.

  The sorting device according to the present invention is a sorting device that sorts transported articles from the transport conveyor side, wherein a convex pole iron core is arranged in the rotating magnetic field, and the vertical magnetic field of the rotating magnetic field is used to form the protruding device. The pole iron core is driven, and the direction of the drive shaft of the sorting drive roller connected to the convex pole iron core is driven in an arbitrary radial direction.

  Further, a rotating magnetic field can be obtained by rotating a disk in which N-pole and S-pole permanent magnets are alternately arranged with a motor.

  According to the sorting apparatus of the present invention, in the sorting apparatus that sorts the conveyed product from the conveyor side, the stator side is constituted by an electromagnet, and the permanent part on the rotor side is in the rotating magnetic field. A magnet is arranged, the rotor is driven through the permanent magnet using the vertical magnetic field of the rotating magnetic field, and the direction of the drive shaft of the sorting drive roller connected to the rotor is driven in an arbitrary radial direction. As a result, the energization of the electromagnet on the stator portion side can be easily cleaned and removed against the adsorption of iron powder, etc., the noise during operation can be reduced, and the driving force can be easily adjusted.

  Further, according to the sorting device of the present invention, in the sorting device that sorts the conveyed product from the conveyor side, a rotor made of an aluminum cylinder is disposed in the rotating magnetic field on the stator side, and the rotating device rotates. The rotor part side is driven by driving the aluminum cylindrical rotor using the vertical magnetic field of the magnetic field and driving the direction of the drive shaft of the sorting drive roller connected to the rotor in an arbitrary radial direction. The structure is robust and high-speed rotation is possible with low noise, and the environmental resistance can be easily improved.

  In addition, the driving force can be easily adjusted by driving the stator part composed of three coils that generate magnetic flux in the vertical direction of the rotating magnetic field and the iron core with a three-phase alternating current to obtain the rotating magnetic field. it can.

  Further, according to the sorting apparatus of the present invention, in the sorting apparatus that sorts the transported articles from the transport conveyor side, the protruding pole iron core is disposed in the rotating magnetic field, and the vertical magnetic field of the rotating magnetic field is used. By driving the projecting pole iron core and driving the direction of the drive shaft of the sorting drive roller connected to the projecting pole core in an arbitrary radial direction, manufacturing is simple and the drive shaft of the drive roller is driven in the radial direction. Force can be adjusted easily and arbitrarily

  In addition, by rotating a disk with alternating N pole and S pole permanent magnets to obtain a rotating magnetic field, the adjustment of the radial driving force by the sorting drive roller is simple. And the production can be performed easily.

The 1st Example of the sorting apparatus of this invention is shown, (A) is a top view, (B) is a front view. It is a detailed view of the rotor, (A) shows an example using a permanent magnet, and (B) shows an example using an aluminum cylinder. It is explanatory drawing which shows the same rotating magnetic field, (A) is a wiring diagram which applies a three-phase alternating voltage to the winding of a stator part, (B) is explanatory drawing of a rotating magnetic field. In the second embodiment of the present invention, a configuration is shown in which a sorting driving roller is driven by a rotor facing a rotating disk in which rotating iron plates are used as yokes and poles of permanent magnets are alternately reversed. A top view and (B) are front views. The structure which drives the rotation disk with a motor is shown, (A) is a top view, (B) is a front view. Different embodiments of the rotor are shown.

  Hereinafter, embodiments of a sorting apparatus according to the present invention will be described with reference to the drawings.

1 to 3 show a first embodiment of a sorting apparatus according to the present invention.
As shown in FIG. 1, the sorter is driven by a stator part A and a rotor part B. The stator part A is connected to a triangular stator fixed body 1 and an iron core 2. A coil 3 formed by winding a magnet wire around the coil, that is, a U-phase coil 31, a V-phase coil 32, and a W-phase coil 33 are arranged at intervals of 120 degrees so as to form an equilateral triangle. As shown in FIG. 3, the power supply device D is configured to supply power to the phase coils 31, 32, 33.
Therefore, this stator part A is comprised by the iron core 2 and the coil 3 which protruded from the fixed body 1, and does not have a movable part.

Further, as shown in FIG. 3, the three coils 3 constituting the stator portion A, that is, the U-phase coil 31, the V-phase coil 32, and the W-phase coil 33, reverse the energization direction of only the W-phase coil 33. It is made to drive with a three-phase inverter as the connected.
Therefore, the stator part A is driven by a three-phase alternating current, and a magnetic flux generated from two coils (V-phase coil, W-phase coil) by a U-phase coil, V-phase coil, and W-phase coil is one coil (W-phase coil ) Or a magnetic flux generated from one coil (W-phase coil) is generated in synchronism with the drive frequency of the inverter in response to two coils (V-phase coil, W-phase coil). As shown in (B), a rotating magnetic field having a horizontal magnetic flux and a vertical magnetic flux is generated on the stator part A.

  In addition, as shown in FIG. 1, the rotor portion B fixes the driving rollers 5 and 5 for sorting to both ends of the drive shaft 4 rotatably supported by bearings (not shown) such as bearings, In addition, the rotor 6 is fixed to the shaft 4 and the rotor 6 is arranged on a straight line passing on the center O (or below) of the stator part A at a position outside the center point. And the length is formed in the cylindrical shape with the width | variety which opposes the center O of the stator part A, and the coil 3. FIG. The drive shaft 4 is supported by a method capable of turning in the radial direction (radial direction) with respect to the center O of the stator portion A. In this case, the rotor 6 and three coils, that is, a U-phase coil are supported. 31, the V-phase coil 32, and the W-phase coil 33 are provided with gaps that do not contact each other.

2A, the rotor 6 includes four magnets 62a, 62b, 62c, 62d made of permanent magnets 62 around the iron core 61 penetrating the drive shaft 4 at the center. The magnetic poles are alternately arranged in the radial direction so that magnetization can be performed. The permanent magnet 62 is not particularly limited. For example, an inexpensive ferrite magnet or an expensive but powerful neodymium magnet can be used.
This rotor 6 has a vertical component of the rotating magnetic field as a main component, generates torque by an electromagnetic action generated between the rotating magnetic field and the permanent magnet, rotates the driving roller for sorting by the torque of the rotor 6, and on the driving roller. A propulsive force is applied to the loaded transported object. In a general motor, the rotor rotates in the stator. However, in the driving method according to the present invention, as shown in FIG. 3, the rotor 6 is driven by a magnetic field distributed in the vertical direction on the stator portion. Is driven to rotate. Thus, by arranging the rotor of the permanent magnet with respect to the rotating magnetic field, it acts as a synchronous motor (synchronous motor). When a ferrite magnet is used for this permanent magnet, for example, demagnetization of the magnet occurs at a low temperature in a refrigeration environment of -30 to -50 ° C.
In this case, a rotor that generates a strong magnetic field even at low temperatures can be configured by using a neodymium magnet made of neodymium, iron, and boron as raw materials.

Further, as the rotor 6, instead of the four magnets made of permanent magnets around the iron core 61 penetrating the drive shaft 4 in the center, as shown in FIG. 2B, an aluminum cylinder 66 may be used. it can. In this case, the thickness of the aluminum cylinder 66 is set to several millimeters, and thus a rotor having an inexpensive configuration can be obtained. In the rotor 6 made of aluminum cylinder, the magnetic flux of the rotating magnetic field penetrates the aluminum cylinder, and as a result, the eddy current generated in the aluminum cylinder functions as an induction motor (induction motor) due to the interaction between the magnetic field and the rotating magnetic field. .
Therefore, since the rotor as the induction motor has a simple structure and is robust, there is an advantage that it can be used even in a poor environment.
Thus, in the method of generating a rotating magnetic field by arranging three coils of the U-phase coil 31, the V-phase coil 32, and the W-phase coil 33 in an equilateral triangle, the stator part A does not have a movable part. There is an advantage that low noise driving can be performed.

In addition, when changing the direction of the driving roller 5 for sorting (direction of the axis), since the rotor 6 and the coil 3 have the same positional relationship and turn, and the coil has a feed line, There is a method in which only the direction is changed and the coil 3 side does not turn.
When the rotor 6 and the coil 3 rotate with the same positional relationship, three coils may be used as in the illustrated embodiment, but only the direction of the drive roller 5 is changed and the coil 3 side does not rotate. The stator part A can be configured by using three or more coils 3, for example, six, nine, or twelve coils. Thus, a plurality of coils are connected in series to balance the load of the inverter, and the arrangement and rotor of the three coils U-phase coil 31, V-phase coil 32, and W-phase coil 33 shown in FIG. The best magnetic flux can be obtained with the arrangement in which 6 crosses each other.

In the above embodiment, as shown in FIG. 2A, the rotor can be magnetized with four magnets 62a, 62b, 62c, and 62d that are alternately reversed in the radial direction of the rotor. 2B and an example in which an aluminum cylinder 66 is disposed around the iron core 61 as shown in FIG. 2B, the driving torque generated in the sorting driving roller is a permanent magnet type. Has the greatest torque.
In addition, since it acts as a synchronous motor and also generates a static torque, simple positioning can be performed.

  On the other hand, when the aluminum cylinder 66 that operates as an induction motor is used for the rotor, the generated torque is reduced, but because of its robust structure, it can be used in applications that require high-speed rotation and environmental resistance. Furthermore, the coil part can be molded with epoxy resin or silicon rubber so that it can be used even when splashed with water, so that it can also be used for sorting seafood and food.

4 to 6 show a second embodiment of the sorting apparatus according to the present invention.
As shown in FIG. 4, the sorting apparatus is driven by a rotating iron plate as a yoke, and a plurality of permanent magnets 7a, 7b, 7c,... A rotor part B in which a rotating disk 7 is provided, and a rotor 6 and sorting drive rollers 5 and 5 are provided on a drive shaft 4 which is provided on the rotating disk 7 so as to face each other. The sorting driving rollers 5 and 5 are driven by the rotor 6 that is configured as described above and that faces the rotating disk 7.
In this case as well, the drive shaft 4 is rotatably supported by a bearing (not shown) such as a bearing, and can be rotated in the radial direction by a rotating disk 7 that rotates.

The rotating disk 7 is configured to be rotated by a motor 11 disposed below the rotating disk 7 as shown in FIG. 5, for example, at a position where the rotor 6 guided and rotated by the rotating disk 7 is not hindered. To do.
In addition, the rotor 6 disposed above the rotating disk 7 so as to have a required gap so as not to contact each other and to be rotatable passes through the drive shaft 4 as shown in FIG. It is possible to make a structure in which the cylindrical iron core 61 is arranged in the center, and aluminum ridges 63 and iron cores 64 are alternately arranged around the outer periphery thereof.

Further, as shown in FIG. 6 (B), the rotor 6 has a cylindrical shape penetrating the drive shaft 4 at the center, and has a plurality of convex poles 6a and 6a on the outer peripheral surface along the circumferential direction. The rotor may be composed of the iron core 61 and adjusted so that the magnet interval on the rotating disk 7 and the arc length between the convex poles 6a and 6a of the cylindrical iron core 61 coincide.
Thus, when the rotating disk 7 is rotated by the motor, the rotor 6 is smoothly rotated by generating an absorption and repulsion force on the convex pole 6a of the iron core 61 by the action of the attractive force by the magnet on the rotating disk 7. To do.

  Further, as shown in FIG. 6C, a structure in which an aluminum cylinder 66 is integrally formed on the outer peripheral surface of a columnar iron core 91 penetrating the drive shaft 4 in the center can be adopted. Thereby, it can be set as the structure which does not use a permanent magnet for a rotor.

  Therefore, as shown in FIG. 6 (B), when the rotor is composed of an iron core having a convex pole, the driving torque is transmitted from the rotating rotating disk 7 to the rotor by the attraction force of the permanent magnet and iron. In the other configurations shown in FIGS. 6A and 6C, a driving force is generated in the rotor by electromagnetic action due to eddy current caused by magnetic flux passing through the aluminum cylinder, and the operation is an induction motor (induction). It is similar to an electric motor.

  As described above, the sorting apparatus according to the present invention has been described based on a plurality of embodiments.However, the present invention is not limited to the configurations described in the above embodiments, and the configurations described in the embodiments are appropriately combined. The configuration can be changed as appropriate without departing from the spirit of the invention.

  Since the sorting apparatus of the present invention has a characteristic that the sorting direction for discharging the conveyed product from the transport conveyor to the chute can be surely performed, it can be suitably used for driving the sorting apparatus. In addition, for example, it can also be used for the application of a conveyor device of a distribution system.

DESCRIPTION OF SYMBOLS A Stator part B Rotor part 1 Fixed body 2 Iron core 3 Coil 31 U phase coil 32 V phase coil 33 W phase coil 4 Drive shaft 5 Drive roller 6 Rotor 61 Iron core 62 Permanent magnet 63 Aluminum cage 64 Iron core 66 Aluminum cylinder 6a Convex pole 7 Rotating disk 7a Permanent magnet 7b Permanent magnet 7c Permanent magnet 11 Motor

Claims (5)

  In a sorting apparatus that sorts transported materials from the conveyor side, the stator side is composed of electromagnets, and the permanent magnets on the rotor side are arranged in the rotating magnetic field so that the rotating magnetic field is perpendicular. The rotor is driven through the permanent magnet using a directional magnetic field, and the direction of the drive shaft of the sorting drive roller connected to the rotor is driven in an arbitrary radial direction. Sorting device.   In a sorting device that sorts transported items from the conveyor side, an aluminum cylinder is arranged by using a vertical magnetic field of the rotating magnetic field in which a rotor made of an aluminum cylinder is arranged in the rotating magnetic field on the stator side. A sorting apparatus characterized by driving a manufactured rotor and driving the direction of the drive shaft of a sorting drive roller connected to the rotor in an arbitrary radial direction.   3. The sorting apparatus according to claim 1, wherein a stator portion comprising three coils that generate magnetic flux in a direction perpendicular to the rotating magnetic field and an iron core is driven by a three-phase AC to obtain a rotating magnetic field.   In a sorting device that sorts transported objects from the conveyor side, a salient pole core is placed in the rotating magnetic field, and the salient core is driven using the vertical magnetic field of the rotating magnetic field. A sorting device characterized in that the direction of the drive shaft of the sorting drive roller connected to the head is driven in an arbitrary radial direction.   5. The sorting apparatus according to claim 4, wherein a rotating magnetic field is obtained by rotating a disk in which N-pole and S-pole permanent magnets are alternately arranged by a motor.

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