JP6912704B2 - Fixed-quantity feeder - Google Patents

Description

The present invention relates to a fixed quantity feeder for quantitatively supplying a predetermined material per hour.

Conventionally, a fixed quantity feeder for quantitatively supplying a predetermined material per hour is well known. The fixed quantity feeder is set so that the material can be conveyed to the supply destination by appropriately vibrating the surface on which the material is placed (see, for example, Patent Document 1 and Patent Document 2).

Then, the conventionally proposed fixed-quantity feeder has a transport device such as a bowl feeder for transporting a predetermined amount of a predetermined material per hour by vibrating the transport surface, and continuous supply to the supply destination. It has a chute that supplies a predetermined amount of the material transported from the transport device to the supply destination by vibrating the surface, and a hopper for supplying the material to the transport device in some cases.

Such a fixed-quantity feeder can supply a predetermined amount of material to a supply destination by an intermittent operation controlled by a control device that simultaneously operates and stops the above-mentioned hopper, transfer device, and chute.

Japanese Patent No. 5948935 Japanese Unexamined Patent Publication No. 10-236625

However, it has been found that when the transfer device and the chute are simultaneously operated and stopped by the control device, the timing at which the transfer device and the chute actually start the operation is deviated.

Then, such a timing shift is caused by the coarseness and density of the material on the supply surface, which is the upper surface of the chute, that is, the material is piled up, as schematically shown in FIGS. 6 (a) and 6 (b). It causes a problem that the dense portion X1 is formed by being piled up, or conversely, a rough portion X2 in which the material is not located on the supply surface is generated.

An object of the present invention is to effectively solve such a problem, and specifically, to provide a fixed quantity feeder having a high supply efficiency capable of stably supplying a predetermined material in a fixed quantity. The purpose.

In view of the above problems, the present invention has taken the following measures.

That is, the fixed quantity feeder of the present invention supplies a transport device that transports a predetermined material by vibrating the transport surface and the material conveyed from the transport device by vibrating the supply surface that is continuous to the supply destination. By controlling the chute to be supplied first, the frequency of the transport device and the chute, the amplitude amount and the operating time in the vibration, the transport device and the chute are controlled so that the material can be moved by a predetermined amount per hour. Control device and
The time from the start of the transfer device to the operation of the material and the time from the start of the chute to the operation of the material are different from each other. The device is characterized in that the timing for operating the material is adjusted by making the start-up times of the transfer device and the chute different.

In such a case, the transfer device has a problem that the timing at which the transfer device operates the material is too earlier than the timing at which the chute operates the material, and the material is excessively stacked on the supply surface of the chute. It is possible to effectively avoid the problem that the timing at which the material is operated is too late for the timing at which the chute operates the material, and the material is not placed on the supply surface of the chute. That is, according to the present invention, it is possible to provide a quantitative feeder having high supply efficiency, which can stably supply a predetermined material in a fixed quantity.

Further, the fixed quantity feeder of the present invention supplies a transport device that transports a predetermined material by vibrating the transport surface and the material conveyed from the transport device by vibrating a supply surface that is continuous to the supply destination. By controlling the chute to be supplied first, the frequency of the transport device and the chute, the amplitude amount and the operating time in the vibration, the transport device and the chute are controlled so that the material can be moved by a predetermined amount per hour. Control device and
The transfer device and the chute are operated so that the control device carries out only a predetermined amount of the material corresponding to the length of the supply surface of the chute as one cycle. It is characterized by controlling the time.

In such a case, even if the material supplied by the chute is coarse and dense, the amount of material supplied in one cycle corresponds to the area of the supply surface of the chute. That is, according to the present invention, it is possible to provide a quantitative feeder having high supply efficiency, which can stably supply a predetermined material in a fixed quantity.

Further, the fixed quantity feeder according to the present invention vibrates a transport surface to transport a predetermined material, and vibrates a continuous supply surface to the supply destination to vibrate the material conveyed from the transport device. By controlling the chute to be supplied to the supply destination, the transfer device and the frequency of the chute, the amount of vibration in the vibration, and the operating time, the transfer device and the chute can move the material by a predetermined amount per hour. A fixed-quantity feeder including a control device for controlling, wherein the control device vibrates the transfer device at a frequency that takes into consideration the natural frequency of the transfer device, and also takes into consideration the natural frequency of the chute. By vibrating the chute at the same frequency , the speeds of the materials moving on the transport surface of the transport device and the supply surface of the chute are matched.

With such a thing, the material can be smoothly transferred from the transfer device to the chute. That is, according to the present invention, it is possible to provide a quantitative feeder having high supply efficiency, which can stably supply a predetermined material in a fixed quantity.

Then, it is desirable that the transport device is a bowl feeder as a configuration for configuring the fixed quantity feeder according to the present invention in a compact plan view.

Further, in order to enable more suitable supply of the material to the transport device, a hopper for loading the material into the transport device shall be further provided, and the control device and the loading surface on which the material is placed in the hopper shall be provided. It is desirable to be able to control the frequency of the vibration, the amount of amplitude in the vibration, and the operating time.

Then, the quantitative feeder according to the present invention can be suitably applied to a material having a grain shape.

According to the present invention described above, it is possible to provide a quantitative feeder having high supply efficiency, which can stably supply a predetermined material in a fixed quantity.

The schematic plan view which shows the fixed quantity feeder which concerns on 1st Embodiment of this invention. The functional block diagram which concerns on the same embodiment. A timing chart according to the same embodiment. The schematic explanatory view which concerns on the 2nd Embodiment of this invention. The operation explanatory drawing which concerns on the 3rd Embodiment of this invention. The schematic explanatory view for demonstrating the present invention.

Hereinafter, the first embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the metering machine 1 according to the present embodiment includes a hopper 2 in which a user sets a work such as an electronic component or a granular material X, and a material supplied by vibration of the hopper 2. It has a bowl feeder 3 which is a transport device for transporting X through a predetermined transport path (a bowl transport path described later), and a chute 4 for moving the material X transported by the bowl feeder 3 to a supply destination Z. That is, the fixed quantity feeder 1 according to the present embodiment vibrates the bowl feeder 3 which is a transport device for transporting a predetermined amount of a predetermined material X per hour by vibrating the transport surface, and the supply surface continuous to the supply destination Z. A chute 4 that supplies a predetermined amount of the material X conveyed from the bowl feeder 3 to the supply destination Z per hour, and a control device for controlling the frequency of the bowl feeder 3 and the chute 4, the amplitude amount in the vibration, and the operating time. 5 and.

Hereinafter, the fixed quantity feeder 1 according to the present embodiment will be described.

The fixed-quantity feeder 1 according to the present embodiment can accurately supply a predetermined amount of a predetermined material X (also referred to as a work) to a supply destination Z per hour when a predetermined material X (also referred to as a work) is charged by the user. In the present embodiment, granules are used as an example of the material X, but the shape and size of the material X, such as a rectangular parallelepiped shape and a plate-like material, can be appropriately changed.

The hopper 2 stores the material X to be supplied to the bowl feeder 3 in the internal space, and inputs the material X to the bowl feeder 3 from the funnel-shaped discharge portion 21 having the tip portion facing above the bowl feeder 3. Is. The hopper 2 of the present embodiment supplies the material X to the bowl feeder 3 from the charging surface 2a, which is the upper surface of the discharge unit 21, when a predetermined amplitude is given by a vibration source (not shown).

As shown in FIG. 1, the bowl feeder 3 has a bowl shape having a substantially circular shape in a plan view. The bowl feeder 3 is provided with, for example, an electromagnetic drive unit that generates torsional vibration having a high frequency and is vibrable. A storage unit 31 formed on the bottom surface and capable of storing a large number of workpieces and a peripheral edge of the storage unit 31 It corresponds to the transport device according to the present invention, which includes a transport surface 3a formed in a spiral shape with an ascending slope along a peripheral wall starting from a predetermined portion of the portion. The bowl feeder 3 is configured to generate vibration in the bowl feeder 3 by a vibration source (not shown) controlled by the control device 5. In the present embodiment, as shown in FIG. 1, a sorting means 32 for appropriately sorting the orientation and shape of the material X is shown as an example, but the configuration of the sorting means 32 is indispensable for the bowl feeder 3. It can be appropriately set according to the shape and structure of the work material X, not the constituent elements.

The chute 4 is also called a linear feeder, and can move the material X transported from the transport surface 3a on the supply surface 4a by vibration and supply the material X to a predetermined transport destination. The chute 4 may be provided with a return portion (with a return transport path) for returning the target material X (overflow material X) to the bowl transport path at the time of overflow, but the return section is not required. do not have. Further, the vibration source that generates vibration in the chute 4 and the vibration source that generates vibration in the bowl feeder 3 are not shared.

As shown in FIG. 2, the control device 5 controls the frequency, amplitude amount, and operating time of the hopper control unit 51 for controlling the frequency, amplitude amount, and operating time of the hopper 2 and the bowl feeder 3. It has a bowl control unit 52 for controlling the frequency, an amplitude amount of the chute 4, and a chute control unit 53 for controlling the operating time.

Here, in the present embodiment, even if the timing at which the bowl feeder 3 and the chute 4 as the conveying devices are activated by the control device 5 is the same, the time is the same as the timing at which the bowl feeder 3 and the chute 4 operate the material X. There is a difference, and the control device 5 causes a difference in the timing of activating the bowl feeder 3 and the chute 4, so that the timing of the bowl feeder 3 and the chute 4 operating the material X is adjusted. It is characterized by being.

FIG. 3 is a timing chart showing the timing of turning on the power to the bowl feeder 3 and the chute 4 and the timing of actually transporting the material X in the conventional configuration and the configuration of the present embodiment. In the figure, the bowl feeder 3 is referred to as a "bowl" for convenience of illustration.

As shown by the alternate long and short dash line in the figure, conventionally, the timing of turning on the power to the bowl feeder 3 and the chute 4 was the same, but the timing at which the chute 4 can carry the material X appears first, so the chute There was a problem that the material X was not supplied from the bowl feeder 3 while the 4 was operating, and there was a region where the material X was absent or small on the supply surface 4a of the chute 4.

On the other hand, as shown by the solid line in the figure, in the present embodiment, the bowl feeder 3 and the chute 4 are set to be delayed by a predetermined time with respect to the timing of turning on the power to the bowl feeder 3. The timing at which the material X starts to operate is the same. Here, it goes without saying that the above-mentioned "timing at which the material X starts to operate" also takes into consideration the time difference between the timing at which the power is turned on in the bowl feeder 3 and the chute 4 until the bowl feeder 3 and the chute 4 can operate normally. .. Further, "can operate normally" means that it is the time from when the power is turned on until the bowl feeder 3 and the chute 4 start to operate accurately at desired amplitude values.

As described above, the metering machine 1 of the present embodiment also has a problem that the material X is excessively stacked on the supply surface 4a of the chute 4 due to the timing difference between the bowl feeder 3 and the chute 4 when the material X starts to operate. The problem that the material X is not placed on the supply surface 4a of the chute 4 can be effectively avoided. That is, according to the present embodiment, a fixed quantity feeder 1 having high supply efficiency capable of stably supplying a predetermined material X in a fixed quantity is realized.

The bowl feeder 3 is used as a transfer device as a configuration for configuring the fixed quantity feeder 1 according to the present invention in a compact plan view.

Further, in order to enable more suitable supply of the material X to the transfer device, in the present embodiment, a hopper 2 for feeding the material X to the transfer device is further provided, and the control device 5 and the control device 5 are provided. It is possible to control the frequency of the input surface 2a on which the material X is placed in the hopper 2, the amount of amplitude in the vibration, and the operating time.

The quantitative feeder 1 according to the present embodiment preferably corresponds to the material X having a grain-shaped material X having a size that is difficult to handle with human fingers.

Hereinafter, other embodiments of the present invention will be described. In each of the embodiments described below, the components corresponding to the components of the above embodiments are designated by the same reference numerals, and detailed description thereof will be omitted.

The quantitative feeder 1 according to the second embodiment of the present invention has the same configurations as the first embodiment, the hopper 2, the bowl feeder 3 as a transport device, the chute 4, and the control device 5. In the fixed quantity feeder 1 according to the present embodiment, as shown in FIG. 4, the control device 5 carries out only a predetermined amount of material X corresponding to the length of the supply surface 4a of the chute 4 as one cycle. It is characterized in that the operating time of the bowl feeder 3 and the chute 4 which are transfer devices is controlled.

More specifically, in the present embodiment, only the material X that can correspond to the length of the supply surface 4a in the chute 4 is 1 by controlling the operating times of the hopper 2, the bowl feeder 3, and the chute 4. It can be carried out to the destination as a cycle. In the one cycle, although the material X is usually placed substantially uniformly, a dense portion X1 in which the material X is densely present and a rough portion X2 in which the material X is absent or sparsely placed appear.

However, according to the present embodiment, since only the material X corresponding to the length of the supply surface 4a in the chute 4 is conveyed in one cycle, even if the dense portion X1 and the rough portion X2 are present, it is accurate to the supply destination Z. A quantity of material X can be supplied.

The fixed quantity feeder 1 according to the third embodiment of the present invention has the same configurations as the first and second embodiments described above in the configuration of the hopper 2, the bowl feeder 3 as a transport device, the chute 4, and the control device 5. In the fixed quantity feeder 1 according to the present embodiment, as shown in FIG. 5, the control device 5 adjusts the speed of the material X moving on the transport surface 3a of the transport device and the supply surface 4a of the shooter to a predetermined speed. It is characterized by having done it. Specifically, in the present embodiment, since the shape and the weight are different, the natural frequencies are different from each other. Therefore, in the present embodiment, the control device 5 controls the hopper 2, the bowl feeder 3, and the chute 4 so as to vibrate at a frequency that takes into consideration the natural frequencies of the hopper 2, the bowl feeder 3, and the bowl feeder 3. By setting the moving speed of the material X operating on the transport surface 3a and the supply surface 4a of the chute 4 to be the same moving speed α, the material X can be smoothly transported.

Even in such a case, the material X can be smoothly transferred from the transfer device to the chute 4 as in the above embodiment.

Although each embodiment of the present invention has been described above, the present invention is not limited to the configuration of the above embodiment. For example, in the above embodiment, the transport device is provided in a transport path for transporting the work while curving the material so as to draw a circular arc in a plan view, but of course, the material may be transported in a straight line in a plan view.

Further, for example, in the above embodiment, a configuration including a hopper in addition to the transport device and the chute is disclosed, but of course, the hopper is not an essential component.

Other configurations can be modified in various ways without departing from the spirit of the present invention.

1 ... Fixed quantity feeder 2 ... Hopper 2a ... Input surface 3 ... Conveyor device (bowl feeder)
3a ... Transport surface 4 ... Chute 4a ... Supply surface 5 ... Control device X ... Material

Claims (5)

A transport device that transports a predetermined material by vibrating the transport surface, and
A chute that supplies the material conveyed from the transfer device to the supply destination by vibrating a supply surface continuous to the supply destination.
A control device for controlling the transfer device and the chute so that the transfer device and the chute can move the material by a predetermined amount per hour by controlling the frequency of the transfer device and the chute, the amplitude amount in the vibration, and the operating time.
It is a fixed-quantity feeder equipped with
The time from the start of the transfer device to the operation of the material and the time from the start of the chute to the operation of the material are different.
A fixed-quantity feeder, wherein the control device has different start-up times of the transfer device and the chute so that the timing of operating the material is adjusted. A transport device that transports a predetermined material by vibrating the transport surface, and
A chute that supplies the material conveyed from the transfer device to the supply destination by vibrating a supply surface continuous to the supply destination.
A control device for controlling the transfer device and the chute so that the transfer device and the chute can move the material by a predetermined amount per hour by controlling the frequency of the transfer device and the chute, the amplitude amount in the vibration, and the operating time.
It is a fixed-quantity feeder equipped with
A quantification characterized in that the control device controls the operating time of the transfer device and the chute so that only a predetermined amount of the material corresponding to the length of the supply surface of the chute is carried out as one cycle. Feeder. A transport device that transports a predetermined material by vibrating the transport surface, and
A chute that supplies the material conveyed from the transfer device to the supply destination by vibrating a supply surface continuous to the supply destination.
A control device for controlling the transfer device and the chute so that the transfer device and the chute can move the material by a predetermined amount per hour by controlling the frequency of the transfer device and the chute, the amplitude amount in the vibration, and the operating time.
It is a fixed-quantity feeder equipped with
The control device vibrates the transport device at a frequency that takes into account the natural frequency of the transport device, and vibrates the chute at a frequency that takes into account the natural frequency of the chute . A metering-quantity feeder characterized in that the speeds of the materials moving on the transport surface and the supply surface of the chute are matched. The quantitative feeder according to any one of claims 1 to 3, wherein the transport device is a bowl feeder. It is further provided with a hopper for feeding the material into the transport device.
The quantitative feeder according to any one of claims 1 to 4, wherein the control device can control the frequency of the input surface on which the material is placed in the hopper, the amount of amplitude in the vibration, and the operating time.

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