JPH06162302A - Plate type work conveying device - Google Patents

Abstract

PURPOSE:To smoothly and securely convey plate type works such as coins in array so that their surfaces become common flush with each other. CONSTITUTION:Coins 9 are arrayed and rolled in a throw-in chute 1, the conveying direction of the coins is switched to the side of a lower take-out chute 3 by a changeover gate 2 by a command, and a guide 4 is constituted as an L-shaped cylinder body which guides the coins 9 and connected to the terminal place of the throw-in chute 1. A feed-out chute 7 and a feed-out auxiliary plate 7a which feeds the coins 9 out are connected to the upper end part of the guide 4. A piezoelectric actuator 13 which feeds the coins 9 horizontally is fitted to the horizontal part of the guide 4. The coins 9 are clamped from both side by a roll unit 11 where plural rollers are provided successively in the conveyance direction and the piezoelectric actuator 13 consisting of piezoelectric ceramic 14 and a vibrator 15 and driven by the tip part of the vibrator 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate-like work transfer device for transferring plate-like works, for example, coins, in a line so that their surfaces are common and smoothly and reliably transferred.

[0002]

2. Description of the Related Art A conventional example will be described with reference to the front view of FIG. In the figure, coins in a mixed state of plural denominations transferred by the conveyor 120 on the right side are distributed by the sorting machine 10.
It is assigned to each denomination by 1. Here, a coin of a certain denomination, for example, 100 yen, is used as change in a post process, so it passes through the left conduit 102, passes through the switching device 103, and then vertically upward by a belt-type coin lifting device described later in detail. Then, it is transferred to the left side conveyor 130 connected to the subsequent process through the ejection chute 114. Coins of other denominations are sorted and stored in the safe 104 directly through the corresponding conduits 121 on the right side. Switching machine 103
Is composed of an actuator without a reference sign and a switching gate that is rotationally driven by the actuator, and transfers the coins transferred through the left conduit 102 to the lower part of the coin lifting device based on the command signal. Side of belt 105 or conduit 1
Switch to the safe 104 side via 22. Lower belt 105
Side is selected when transferring to the subsequent process side for change,
The safe 104 side is selected when the change in the subsequent process becomes full and transfer is unnecessary.

A coin lifting device is composed of a combination of two belts, and a coin is sandwiched between the belts and vertically transferred. That is, one belt 105 basically has three pulleys 107, 108, 109.
The other belt 106 is basically wound around each of the two pulleys 110 and 111. Pulley 107 mode
It is driven to rotate by 113. The right vertical portion of the belt 105 and the left vertical portion of the belt 106 are configured to contact each other's surfaces, and in order to secure this contact sufficiently strongly, five intermediate pulleys 112 are provided at the contact portion. Are installed in a zigzag pattern in the vertical direction. Therefore, the coins dropped from the switching device 103 onto the surface of the belt 105 are first transferred to the left and then at the pulley 110, the coins of each belt 10 are transferred.
It is sandwiched by the contact portions of 5,106 and is transported vertically upward, and then falls onto the conveyor 130 via the ejection chute 114 at the position of the pulley 109 that has climbed up.

[0004]

In the conventional example shown in FIG. 6, the coins are vertically clamped by the contact portions of the belts 105 and 106 corresponding to the areas where the intermediate pulley 112 is installed in the vertical zigzag pattern, and the coins are vertically attached. Since it is a method of transferring coins upward, one problem is that the coins are transferred in a zigzag manner and lack in smoothness, and in two, the coins may shift slightly during transfer and partially overlap. is there. That is, if the transfer is not smooth, not only the coin itself is damaged, but also the lifting device is mechanically unreasonable and causes a failure. The reason why the coins are aligned and transferred in one line is that the pretreatment for the alignment in the subsequent process is unnecessary.

An object of the present invention is to solve the above problems of the prior art and to smoothly and surely transfer plate-like works, for example, coins, by arranging them in a line with their surfaces being common. An object is to provide a plate-shaped work transfer device.

[0006]

A plate-like work transfer device according to a first aspect of the present invention is connected to a charging chute and guides plate-like works in a row along a predetermined plane, and a work ejection port at a predetermined position. A guide having; a rolling element provided in the vicinity of a connecting portion of the guide with a charging chute and arranged in parallel along the guide direction of the guide; and a piezoelectric actuator arranged to face the rolling element. A drive unit that urges one of the piezoelectric actuator and the rolling element in a direction in which they approach each other; and is preceded by a work that is pressed and pinched by the rolling element and the vibrator of the piezoelectric actuator and then sent out. All the works in the guide are pushed and transferred.

According to a second aspect of the present invention, there is provided a plate-like work transfer device, which is connected to a charging chute to guide a plate-like work made of a conductive material in a row along a predetermined plane, and has a work outlet at a predetermined position. Then, a predetermined range portion near the connecting portion with the charging chute is provided with a guide made of at least a non-magnetic material; provided in a portion of this guide made of a non-magnetic material, and moves in the transfer direction of the work and is perpendicular to the work surface. A magnetic field generating means having parallel coils excited by a polyphase alternating current for generating a magnetic field; and an electromagnetic force received by an induced current in a work based on the magnetic field generated by the magnetic field generating means. By the work sent out by using as a driving force, all the works in the guide preceding the work are pushed and transferred.

According to a third aspect of the present invention, there is provided a plate-like workpiece transfer apparatus according to the first or second aspect, in which the input chute has a transfer / extraction switching gate near the input port. A plate-like work transfer device according to a fourth aspect is the device according to any one of the first to third aspects, wherein the plate-like work is a coin.

[0009]

In the plate-like work transfer device according to the first, third or fourth aspect of the present invention, the work is introduced into the connecting end of the guide by the introduction chute, and is pressed and sandwiched by the rolling element and the vibrator of the piezoelectric actuator to be delivered. And everything in the guide that precedes it is pushed and transferred,
It is thrown out from the guide's outlet.

In the plate-like workpiece transfer device according to the second, third or fourth aspect, the workpiece is thrown into the end portion of the guide by the throwing chute, and in the moving magnetic field generated by the magnetic field generating means, the induced current in the workpiece based on the moving magnetic field is generated. It is sent out by a driving force as an electromagnetic force received by, and is transferred in such a manner that all things in the guide preceding this are pushed and discharged from the guide outlet.

Particularly, in the plate-like work transfer device according to the third aspect, the work is provided for normal transfer or removal for another purpose near the input port of the input chute by the gate operated based on the command signal. The transfer direction is switched.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a plate-like work transfer device according to the present invention will be described below with reference to the drawings. First, a first embodiment corresponding to claim 1 will be described. Figure 1
Is a front view of the first embodiment and is a view common to a front view of a second embodiment described later. In FIG. 1, 1 is a throwing chute, which is installed at an angle and rolls the coins 9 as plate-shaped works in one row so that the surfaces thereof are along a vertical surface. Reference numeral 2 denotes a switching gate, which is provided on the lower surface of the terminal end of the charging chute 1 and can be switched by a command to convert the transfer direction of the coin 9 introduced up to this point to the side of the lower ejection chute 3. The transfer direction is changed according to the overall situation of the flow of the coins 9, and when the coins 9 are no longer required to be transferred, the coins are stored in the safe via the take-out chute 3. Reference numeral 4 denotes a guide, which is configured as an L-shaped cylindrical body for guiding the coin 9 in its diameter direction, and is connected to the end portion of the charging chute 1. The upper end of the guide 4 is connected to a dispensing chute 7 and a dispensing aid plate 7a for dispensing the pumped coin 9 to the outside.

A piezoelectric actuator 13 for feeding and driving the coin 9 in the horizontal direction is attached to a portion of the horizontal portion of the guide 4 near the input chute 1. The magnetic field generator 20 in parentheses at this location corresponds to the second embodiment and is not relevant to the first embodiment. The piezoelectric actuator 13 and related members will be described with reference to FIG. 2, which is a plan view of the essential parts of the first embodiment. In FIG. 2, the coin 9 guided by the guide 4 is sandwiched by the rolling unit 11 and the piezoelectric actuator 13 from both sides thereof. The rolling unit 11 has a structure in which a plurality of unsigned rollers are arranged side by side in the guiding direction of the coin 9, through which the coin 9 can be smoothly moved, and the inner surface of one side wall of the guide 4 is arranged. It is pressed against the surface of the coin 9 by the urging force of the spring 12 inserted between and. The piezoelectric actuator 13 is attached to the other side wall of the guide 4 and comprises a piezoelectric ceramics 14 as a piezoelectric element and a vibrator 15, and the tip of the vibrator 15 contacts the surface of the coin 9. Therefore, the coin 9 is driven in the transfer direction via the vibrator 15 by the AC voltage applied to the piezoelectric ceramics 14, and is transferred while pushing all the preceding coins inside the guide 4. As is well known, the piezoelectric actuator 13 is classified into a standing wave system that is driven by standing elliptical vibration and a traveling wave system that is driven by elliptical vibration of the surface due to traveling waves. By the way, in this embodiment, the coin 9 is explained as being transferred with its surface vertical, but in general, the coin 9 can be transferred along an inclined surface.

The second embodiment will be described with reference to FIGS. 1, 3, 4, and 5. FIG. 1 is a common front view of the first and second embodiments as described above. Figure 1
In the above, the main difference between the second embodiment and the first embodiment is that
By providing the magnetic field generator 20 as a driving means in place of the piezoelectric actuator 13 in the first embodiment, the closing chute 1, the switching gate 2, the discharging chute 3, the guide 4, the discharging chute 7 and the discharging auxiliary plate. Since 7a is the same as that in the first embodiment, its explanation is omitted. FIG. 3 is a plan view of the essential parts of the second embodiment, and FIG. 4 is a side view of the essential parts of the second embodiment.

In FIGS. 3 and 4, a partial guide 5 made of a non-magnetic material is inserted in a part of the guide 4, and a magnetic field generator 20 is provided therein as a drive unit of the induction linear motor system. The magnetic field generators 20 are arranged in parallel in the coin transfer direction in order to form a moving magnetic field by three-phase alternating current.
The electromagnet portion 21 is composed of individual electromagnets, and a rectangular cylindrical yoke 22 is formed so as to surround the electromagnet portion 21 and the partial guide 5 in order to effectively guide the magnetic flux. This electromagnet part
The 21 operations are as follows. Now, in Fig. 3, the moving magnetic field has a direction from bottom to top along the plane of the paper,
In addition, it is formed so as to move in parallel from the right to the left direction, that is, the coin transfer direction. Due to this moving magnetic field, an induced current is generated in the coin 9 from the other side at a right angle to the paper surface and toward this direction. That is, the induced current flows based on the electromotive force generated in the coin 9 that cuts the magnetic flux, and its direction is obtained by Fleming's right-hand rule. This induced current receives an electromagnetic force in the direction from right to left from the moving magnetic field, as defined by Fleming's left-hand rule. This electromagnetic force serves as a driving force to transfer the coin 9 located inside the partial guide 5 and also to press all the preceding coins inside the guide 4.

Next, how each coil constituting the electromagnet section 21 is connected to a three-phase AC power source in order to form a moving magnetic field will be described with reference to FIG.
FIG. 5 relates to a side-by-side coil of an electromagnet part connected to a three-phase AC power source in the second embodiment, (a) is a connection diagram relating to Δ connection, (b)
[Fig. 4] is a connection diagram relating to Y connection. In Fig. 5 (a), the three coils 21A, 21B, 21C belonging to the electromagnet section 21 and each phase on the three-phase AC power supply side are so-called Δ (triangle) connected, and the mutual connections are as shown in the figure. Become. In Fig. 5 (b), three coils 21A, 21B, 21C and each phase on the three-phase AC power supply side are
The so-called Y (star) connection is made, and the connections between them are as shown.

[0017]

In the plate-like work transfer device according to the first, third or fourth aspect of the present invention, the work is introduced into the connecting end portion of the guide by the introduction chute, and is pressed and pinched by the rolling element and the vibrator of the piezoelectric actuator. In addition to being sent out, everything in the guide preceding this is transferred in a pressed form and is discharged from the guide outlet. Therefore, the workpieces are aligned in one row with their surfaces being common, and are quickly and smoothly transferred by a large driving force. Moreover, there is no danger of being damaged by the contact between the rolling element as the driving means and the vibrator of the piezoelectric actuator.

In the plate-like work transfer device according to the second, third or fourth aspect, the work is thrown into the end portion of the guide by the throw chute, and the induced current in the work based on this is generated in the moving magnetic field by the magnetic field generating means. It is sent out by a driving force as an electromagnetic force received by, and is transferred in such a manner that all things in the guide preceding this are pushed and discharged from the guide outlet. Therefore, the workpieces are aligned in a line with their surfaces being common, are transported quickly and smoothly by a large driving force, and there is no risk of being damaged by contact with the magnetic field generating means.
In addition, the structure of the driving means is particularly simple and does not include a movable part, and the maintainability is good and the reliability is high.

Particularly, in the plate-like work transfer device according to the third aspect, the work is provided for normal transfer or removal for another purpose near the input port of the input chute by the gate which operates based on the command signal. Since the transfer direction can be switched, it is possible to easily take flexible measures such as transfer or storing in a safe box according to the overall situation, and thus rational operation of the system can be achieved.

Particularly, in the plate-shaped work transfer device according to the fourth aspect, since the work is a coin, it is highly desirable that there is no risk of being damaged by the transfer.

[Brief description of drawings]

FIG. 1 is a common front view of first and second embodiments according to the present invention.

FIG. 2 is a plan view of an essential part of the first embodiment.

FIG. 3 is a plan view of an essential part of the second embodiment.

FIG. 4 is a side view of a main part of the second embodiment.

FIG. 5 (a) is a connection diagram relating to a Δ connection regarding the parallel coil of the electromagnet section connected to the three-phase AC power source in the second embodiment,
(b) is a connection diagram related to Y connection

FIG. 6 is a front view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input chute 2 Switching gate 3 Ejection chute 4 Guide 5 Partial guide 6 Feed roller 7 Ejection chute 7a Ejection auxiliary plate 9 Coins 11 Rolling unit 12 Spring 13 Piezoelectric actuator 14 Piezoelectric ceramics 15 Vibrator 20 Magnetic field generation part 21 Electromagnet part 21A, 21B, 21C coil 22 yoke

Claims (4)

[Claims] 1. A plate-shaped work piece is connected to a feeding chute and
A guide that guides along a predetermined plane in a row and that has a work outlet in a predetermined position; a rolling element that is provided near a connection point between the guide and a chute and that is arranged in parallel along the guide direction of the guide; And a drive unit that has a piezoelectric actuator disposed so as to face the piezoelectric actuator and that is urged in a direction in which one of the piezoelectric actuator and the rolling element approaches each other; A plate-like work transfer device characterized in that all the works in a guide preceding this work are transferred by being pushed by a work piece that is pressed and pinched by a vibrator. 2. A plate-like work made of a conductive material, which is connected to a charging chute, is guided in a row along a predetermined plane, and has a work ejection port at a predetermined position. A predetermined range portion is a guide made of at least a non-magnetic material; a multi-phase alternating current provided at a portion of the guide made of a non-magnetic material to move in the work transfer direction and generate a magnetic field perpendicular to the work surface. A magnetic field generating means having parallel coils that are excited by an electric current; and in a moving magnetic field generated by the magnetic field generating means, an electromagnetic force received by an induced current in the work based on the magnetic field generating means is sent as a driving force by the work. A plate-like work transfer device having a structure in which all the works in the guide preceding the above are transferred in a pressed form. 3. The apparatus according to claim 1 or 2, wherein
The loading chute is provided with a gate for transferring / unloading switching near the loading port, which is a plate-like work transfer device. 4. The plate-like work transfer device according to claim 1, wherein the plate-like work is a coin.