JPH01284372A - Oscillation unit and oscillation device using oscillation unit - Google Patents

Abstract

PURPOSE:To form an oscillation generating body into one unit by connecting an actuating body disposed to face an electromagnetic coil to an oscillation frame which is supported by elastic bodies and intermittently generating magnetic forces in the electromagnetic coil to intermittently attract the actuating body, thereby oscillating the oscillation frame. CONSTITUTION:The electromagnetic oil 8 fixed to a coil support 7 is grasped by a coil supporting plate 9 and a support 7. The coil 8 is inserted with an actuating body supporting shaft 10 in the central space part and the large- diameter disk part 11a of the actuating body 11 is so mounted as to face the coil supporting body 9. The actuating body 11 is mounted to the downward oscillation frame 2 having a U-shaped section and the oscillation frame 2 is supported by spring plates 3a, 3b. The disk 11a of t he actuating body 11 is intermittently attracted to the supporting plate 9 and the oscillation frame 2 is oscillated, if the magnetic forces are intermittently generated in the coil 8. The oscillation mechanism is made into one unit by this constitution and the easy mounting of the various bodies 14 to be oscillated to the oscillation frame 2 is enabled.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vibrating body unit and a device using this unit.

[Technical background of the present invention and problems of the prior art] As a type of device called a vibration feeder or parts feeder,
2. Description of the Related Art There is a device called a linear feeder that linearly moves powder or small parts. A large electromagnetic coil is usually used as the vibration source for this device, but it is heavy and
For example, when measuring the discharge amount by placing the entire device on an electromagnetic balance scale called a load cell scale or an electronic balance, the weight of the device that does not contribute to weight measurement, that is, the dead load increases. In addition, as vibration components include not only horizontal vibrations but also vertical vibrations, which are relatively large, these vertical vibration components are transmitted to the measuring mechanism via the load transmission section of the weight measuring device, which adversely affects the weighing device. will give.

In addition, for example, when considering a vibrating feeder for discharging powder and granules, the properties of powder and granules vary, such as those with high or low bulk density, and those with good or poor fluidity. have.

In this case, for example, it is reasonable to provide a large hopper for particles with low bulk specific gravity, and for fine particles that are easily blown up, it is necessary to cover the hopper. However, conventionally, these hoppers and a vibration source for vibrating the hopper portion have been integrally formed, and therefore it is necessary to prepare respective vibrating feeders depending on the properties of the powder or granules.

[Means for solving problems]

The present invention has been constructed in view of the above-mentioned problems.The present invention has been constructed in such a way that a vibration generating body that is lightweight and has a large horizontal vibration component is made into a unit so that it can be combined with various members, thereby increasing versatility. These are a vibration unit that serves as an increased vibration source, and a device using this vibration unit.

[Effect]

By applying AC power or intermittently supplying power in the form of pulses, and controlling the AC frequency and pulses if necessary, an electromagnetic force is intermittently generated in the electromagnetic coil in response to this control. , thereby intermittently suctioning the actuating body. The actuating body is supported by an elastic body, and therefore, when not being sucked, the actuating body reciprocates to return to its original position due to its elasticity.

This operation is performed in response to the frequency and pulse, and the vibration itself can be easily controlled by adjusting the AC frequency and power supply pulse. In this case, by configuring the actuating body to directly collide with the electromagnetic coil side, it is possible to move the object to be moved, such as powder or granular material, more effectively.

[Implementation row]

Embodiments of the present invention will be specifically described below with reference to the drawings.

1 and 2 show an embodiment of the invention.

Arrow 1 indicates a vibration unit that is a vibration generation source.

Reference numeral 2 denotes a vibrating frame that constitutes a part of the vibration generating unit 1, and has a U-shaped cross section. Reference numerals 3a and 3b designate spring plates, which are elastic bodies, connected to the vibrating frame 2 via connecting members such as pins 4a and 4b. This spring plate 3a,
3b is connected and fixed to the substrate 6, and the vibrating body 2
is configured to vibrate mainly parallel to the substrate 6 via spring plates 3a and 3b. Next, 7 is a coil support fixed to the substrate 6, 8 is an electromagnetic coil fixed to this coil support 7, and 9 is a coil support plate which holds the coil 8 together with this coil support 7. Reference numeral 10 denotes an actuator support shaft, which is supported at both ends by the bins 4a and 4b, and is disposed so as to pass through approximately the center of the central space of the electromagnetic coil 8 supported by the coil supporter 7. Reference numeral 11 denotes an actuating body supported by this actuating body support shaft 10, and a large-diameter disk portion 11a is attached to the coil support plate 9 (so as to be opposite to the coil supporting plate 9).
is a cover fixed to the vibrating frame 2 side, which covers almost the entire vibrating body unit surrounded by the vibrating frame 2 and spring plates 3a and 3b, and prevents dust from entering from the outside as much as possible. It is structured like this.

What is shown in FIGS. 1 and 2 shows an application of the vibration unit 1 configured as described above as a vibration source of a vibration feeder.

Reference numeral 13 designates a plate for mounting a vibrated member such as a hopper for powder or granular material, and is fixed to the upper part of the vibration unit 1. In the illustrated configuration, since the entire apparatus is used as a vibration feeder (straight feeder), the hopper 14 for discharging powder and granular material is fixed to the plate 13. The hopper 14 may be semi-permanently fixed to the vibration unit 1 using fixing means such as screws or adhesive, or may be detachably attached as shown in the drawing.

That is, in the illustrated configuration, a hole for inserting a clip is formed at a predetermined position in the temporary 13, and a spring clip is attached to the hopper at a position corresponding to this opening. . To explain this configuration in more detail using FIG. 3, reference numeral 15 in the figure indicates a clip insertion hole formed in the mounting plate 13, and 16 indicates a clip insertion hole formed in the hopper 1.
4 shows the spring clip attached to the underside of the 4. In this configuration, the spring clips 16 on the lower surface of the hopper are attached to the vibration unit 1 by placing them close to the openings 15 formed in the plate, and by pressing each clip portion from the hopper side, the spring clips 16 are attached to the hopper via the clips 16. 14 can be easily attached to the vibration unit 1. Further, when removing the hopper 14, it can be easily removed by pinching the end of each spring clip 16 and pushing it upward.

Since the filling amount to the hopper and the flow rate per unit time differ depending on the particle size, shape, bulk specific gravity, etc. of the powder or granular material, it is necessary to select the most suitable hopper depending on the characteristics of the powder or granular material, but even if the above configuration is used, Since the hopper is easy to attach and detach, an optimal hopper can be easily attached to the vibration unit 1. This also has the advantage that when discharging substances such as drugs and chemical substances that should be prevented from mixing with other substances as much as possible, it is easy to use a specific hopper for each substance. There is also.

Next, the operating state of the unit configured as described above will be explained.

An alternating current voltage is applied to the electromagnetic coil 8 of the vibration unit l. The electromagnetic coil 8 generates magnetic force in response to the frequency of this alternating voltage. Therefore, the flat plate portion 11 of the actuating body 11
A is intermittently attracted to the electromagnetic coil 8 side in accordance with this frequency. When the coil 8 does not generate electromagnetic force, the actuating body 1
1 is returned to its original position by the elasticity of the spring plates 3a and 3b, so the vibrating frame 2, which is integrated with the actuating body 11 via the support shaft 10, vibrates in response to the AC frequency in the same way as the actuating body 11. I will do it. As a result, the powder and granular material filled in the hopper 14 is appropriately discharged via the trough 14a.

In this case, if the actuating body is configured to collide with the coil side when the electromagnetic coil is attracted, the impact can extend the moving distance of the powder per unit time. It can significantly improve body excretion.

Furthermore, attachment of the vibrated member to the vibration unit is not limited to the above-mentioned spring clip, and other simple connection means such as Velcro (trade name) can be used as appropriate.

FIG. 4 shows another configuration.

In this configuration, the vibration unit is mounted by placing a relatively large mounting table 17 on the plate 13. A container 18 for storing powder or granular materials such as chemicals is placed on this mounting table 17. In this configuration, by actuating the vibrating unit 1, the container 18 is moved in the direction of the arrow and conveyed by a belt conveyor 19 arranged at its end to, for example, below a feeder for dropping medicine. In addition, objects to be moved on this mounting table include various connection members and small parts such as screws, washers, and clips other than the container shown in the figure, in short, various members can be moved, and it can be used as a so-called parts feeder. .

FIG. 5 shows yet another configuration.

The vibration unit 1 and the hopper 19 attached thereto are mounted and fixed on a load cell 27, which is a load measuring device. A parts feeder for moving containers as shown in FIG. 4 is arranged below the powder discharge end of the hopper 19. 20
．． Reference numeral 21 denotes a control device that controls a feeder for discharging powder and a parts feeder, respectively.

In the above configuration, first, the parts feeder is operated by the control device 20. When the center position of a predetermined container 18 placed on the mounting table 17 of the parts feeder reaches the position where the powder or granular material falls from the hopper 19, the position sensor 22 detects the position and sends a signal to the control device 20. input. Based on this signal, the control device 20 opens the switch 24 of the AC power source 23 to stop the operation of the vibration unit (IA), and the container 18
stop moving and place it in a predetermined position. This movement stop signal is input to the control device 21, and the control device 21 uses this signal to close another switch 25 of the AC power source 23.

As a result, the vibration unit IB of the feeder for discharging powder and granular materials is activated, and the powder and granular materials 26 filled in the hopper 19 are sequentially discharged. The discharged powder and granular material is dropped and filled into a container 18 located directly below it. The discharge amount of this powder and granular material 26 is measured by a load cell 27, and a trace amount thereof is constantly collected by a control device 21.
is input. When the reduced amount reaches a predetermined amount, the control '4'lrJ device 21 opens the switch 25 to stop the operation of the vibration unit IB and stop discharging the granular material. The vibration feeder deactivation signal is in turn input to the controller 20 to activate the parts feeder and move the next container 18 to a predetermined position. By performing the above operations alternately, each container is filled with a predetermined amount of granular material.

Although the above configurations all adopt a method of applying AC voltage to the vibration unit, it is of course possible to generate vibration by intermittently supplying electric power in the form of pulses. It is.

〔effect〕

As the configuration of the present invention has been specifically explained above, the vibration generator is lightweight and has a large horizontal vibration component, and is configured to be unitized so that it can be combined with various members, thereby achieving versatility. Since this is a vibration unit as a vibration source with increased vibration and a device using this vibration unit, it can be used in a wide variety of applications by combining the vibration unit and various members.

Furthermore, since the vibration unit itself is small and lightweight, the entire constructed device can be made smaller without deteriorating the performance of the device.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of a vibration unit showing an embodiment of the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is a detailed view of section B in Fig. 1, and Fig. 4 5 is a diagram showing a configuration in which a vibration unit is used as a vibration source of a parts feeder, and FIG. 5 is a control system diagram of an apparatus combining a powder discharge feeder and a parts feeder. 1... Vibration unit 2... Vibration frame 3a, 3b.
...temporary spring 8...electromagnetic coil 10...actuating body support shaft 11...actuating body 14.19...hopper
17... Parts mounting table Figure 1 Figure 2

Claims (3)

[Claims] (1) An electromagnetic coil, an actuating body located opposite to this electromagnetic coil, a vibrating frame connected directly or indirectly to this actuating body, an elastic body supporting this vibrating frame, and an electromagnetic coil intermittently By comprising means for controlling the generation of magnetic force, the vibrating frame is vibrated by the intermittent attractive force of the electromagnetic coil and the elasticity of the elastic body, and various vibrating members are attached to the vibrating frame side. A vibration unit characterized by being configured to be connectable. (2) A vibrating device using a vibrating unit, characterized in that a hopper for filling and discharging powder and granular material is attached to the vibrating unit, and the entire device is configured as a feeder for discharging powder and granular material. (3) A mounting table is attached to the vibration unit, and the mounting table is configured as a parts feeder by filling and discharging various small parts, etc. A vibration device using a vibration unit.