JPH0236097Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) This invention relates to a dispersion feeding device that distributes a material fed into the upper part of the device to a plurality of weighing machines, etc. arranged in a circle around the device. .

(Prior Art) A conventional distributed feeding device of this type has a plurality of outlets on the outer periphery of a ball-shaped feeder linked to an electromagnetic vibration device, each of which has a shutter that opens and closes in response to a signal from a weighing machine. The ball feeder is always vibrated and the shutter is opened at a predetermined time to supply the material to each weighing machine. A rotary hopper having a plurality of bucket-shaped chambers is provided in each supply trough, and while the ball feeder is constantly vibrated together with each supply trough, the rotary hopper is intermittently rotated at predetermined times to weigh each material to be supplied. A device that is designed to be supplied to a machine is known.

(Problem to be solved by the invention) However, in the former distributed feeding device, the objects to be fed may be destroyed or damaged by the shutter, and the objects to be fed may be caught or scattered by the shutter. There were other problems.

On the other hand, in the latter distributed feeding device, there were problems in that the material to be fed was damaged by the rotating hopper, or the material to be fed was caught between the rotating hopper and the trough. Especially in these feeding devices, since the ball feeder is constantly vibrating, the wrapping paper may become unraveled, especially when the object to be fed is a twisted package. The drawback was that it could not be supplied. Furthermore, in order to vibrate such a ball feeder with one electromagnetic vibration device, a large vibration capacity is required, and the vibration noise generated by the ball feeder is also high, and the influence on the surrounding environment cannot be ignored.

The purpose of this invention is to provide a new distributed feeding device that does not cause such problems.

(Means for Solving the Problems) In order to solve the above-mentioned problems, in this invention, a plurality of feeders are used to individually feed the objects around the object fed into the center of the device by vibration. The troughs are arranged radially, and the side walls of each feed trough overlap the side walls of adjacent feed troughs, creating a non-contact chain between each feed trough at each side wall. This allows individual vibration of each supply trough, and prevents the material to be supplied from overflowing from between the supply troughs.

Each of the supply troughs is connected to an electromagnetic vibration device to individually feed the material on the trough by vibration, and the central part of the device receives and receives the material. A conically shaped distribution table is arranged which guides the feed to the outer feed trough.

(Function) With this configuration, the material to be fed into the center of the device is held all around the radially arranged supply troughs, and each material is uniquely vibrated by the individual vibrations of each supply trough. It is sent to the outside.

(Example) Next, a case where an example of this invention is applied to a combination calculation type automatic weighing device will be described based on the drawings.

A dispersion table 1 placed in the center of the device is formed into a conical shape, and an electromagnetic vibration device 2
It is mounted and supported on the top to perform spiral reciprocating vibrations. That is, the conical distribution table 1 is configured to reciprocate at a predetermined angle so that the screw around its central axis moves forward and backward. Further, an electromagnetic vibration device 7 is provided on the outer periphery of the distribution table 1.
A plurality of supply troughs 3 are arranged radially around the table 1 with their rear ends positioned below the periphery of the distribution table 1, and the supply troughs 3 are mounted and supported on the distribution table 1. The peripheral edges of the distribution table 1 are arranged so as not to come into contact with each other. and one side wall 3' of each supply trough 3.
is formed vertically, and its front 2/3 vertical wall 4 is formed into a mountain shape, while the other side wall 3'' facing this is formed into a mountain shape at its front 2/3. , its upper half portion 5 is further inclined outward at a predetermined angle, and the subsequent rear 1/3 side wall 6 contacts the rear 1/3 of one side wall 3' of the adjacent supply trough 3 without contacting it. It is formed so that it overlaps with the state.

Furthermore, the emitter 8 and the receiver 8' are attached to support columns 9 and 9' that are arranged opposite to each other with the dispersion table 1 in between, so that their vertical positions can be freely adjusted, and detect excess or deficiency of the material to be supplied on the dispersion table 1. If there is a shortage of the material to be supplied, the supply device 21 is driven for a predetermined period of time by the signal from the light receiver 8'.
A material to be supplied is placed on the distribution table 1.

Further, the electromagnetic vibration devices 2 and 7 that support the distribution table 1 and the supply trough 3 are mounted and fixed on a support stand 10 that is fixedly supported on a frame 11 via a plurality of legs 12, and each At the bottom of the tip of the supply trough 3, a pool hopper 14 and a weighing hopper 15 are arranged one above the other, and below the pool hopper 14, a weighing hopper 15 arranged in a circle is arranged.
15, a funnel-shaped chute 20 is arranged.

In addition, each weighing machine 13 of the combination calculation type automatic weighing device
is the pool hopper 14 and the weighing hopper 15.
, a weighing mechanism section 16 that measures the weight of the material to be fed in the hopper 15, and a drive section 19 that supports the pool hopper 14 and opens and closes both the hoppers 14 and 15 using lever mechanisms 17 and 18.
The chute 20 is composed of:
It is mounted and supported inside the frame 11 with its upper end peripheral edge slightly protruding from the upper surface of the frame 11.

In the above configuration, when the amount of material accumulated on the dispersion table 1 falls below a certain level, the light emitted from the light projector 8 is detected by the light receiver 8', and the detection signal drives the supply device 21 for a predetermined period of time. Then, the material to be supplied is placed onto the distribution table 1 from the supply device 21. In this way, a certain level or higher of the material to be supplied is secured on the dispersion table 1, and this is gradually propelled toward the outer circumference from the conical surface of the dispersion table 1 by the torsional reciprocating vibration of the electromagnetic vibration device 2 of the dispersion table 1, and an appropriate amount Each supply trough 3
will be supplied to. Further, the material to be supplied to each supply trough 3 is gradually propelled inside the supply trough 3 toward the tip by the inclined linear reciprocating vibration of each electromagnetic vibration device 7, and is thrown into each pool hopper 14 from the tip. be done. In that case, the feeding timing is when the pool hopper 14 discharges the material to be supplied and becomes empty, and at that timing, the supply trough 3 corresponding to the empty pool hopper 14 is turned on even when a signal from the weighing machine 13 is received. Then, vibration is started and the material to be supplied is supplied to the corresponding pool hopper 14. The supply time at that time is for each trough 3.
Although the supply time is predetermined by a timer for each trough 3, this supply time may be different for each trough 3, or may be the same.

On the other hand, the material to be supplied into the pool hopper 14 is further introduced into the weighing hopper 15 and weighed by the weighing mechanism section 16, as will be described later. and,
A combination calculation of the weight values of the objects weighed by each weighing machine 13 is executed via an electronic circuit, a combination of weights equal to or closest to a predetermined weight is selected, and the weight corresponding to that combination is weighed. The hopper 15 is opened and closed via the drive section 19 and lever mechanism 18. The weighing hopper 15 selected by this
The material to be supplied is discharged from the chute 20 into the chute 20, further collected by the chute 20, and discharged to a bucket conveyor (not shown).

Further, the weighing hopper 15, which has been emptied after the material has been discharged, is fed with the material from the pool hopper 14, which is opened and closed via the drive unit 19 and the lever mechanism 17, and then receives a signal from the weighing machine 13. Then, the supply trough 3 is vibrated for a predetermined time by a timer, and the material to be supplied is thrown into the empty pool hopper 14. In addition, in parallel with the operation of charging the material from the supply trough 3 to the pool hopper 14, the material fed into the weighing hopper 15 is weighed, and the combination calculation of each weight value is performed again. The combination of weights equal to or closest to the predetermined weight is selected, and the above operations are repeated thereafter.

In addition, the weighing hopper 15 whose combination was not selected
The material to be supplied inside is not discharged, and its weight value is used again in the next combination calculation. Therefore, the pool hopper 14 is not opened or closed, and the corresponding supply trough 3 is not vibrated.

Further, when the combination calculation of the weight values of each weighing machine 13 is completed, the distribution table 1 starts vibrating in response to the calculation end signal, and stops vibrating in response to the next combination calculation start signal. As a result, the material to be supplied is fed from the distribution table 1 to the supply trough 3 corresponding to the pool hopper 14 that was previously discharged. but,
Since the previous supplied material remains in the supply trough 3 corresponding to the pool hopper 14 that was not discharged last time, almost no supplied material is fed. In this way, the amount of material accumulated on each supply trough 3 is approximately averaged. Further, when the amount of the material accumulated on the dispersion table 1 becomes below a certain level, the aforementioned emitter 8 and light receiver 8' detect the shortage of the material to be supplied, the supply device 21 is driven, and the dispersion table 1 is
The material to be supplied is added to the top.

In the above-described embodiment, a case has been described in which the material to be supplied is distributed and supplied to each weighing machine of a combinational calculation type automatic weighing device, but it goes without saying that this invention can also be applied to a case where combinational calculations are not performed.

As explained above, according to this invention, it is possible to radially disperse the material to be fed into the upper center of the device from the center outward, and also to distribute the material to the weighing machine etc. disposed at the outer tip. Since the objects to be fed can be fed individually, the device can be used as a distributed feeding device of a combination calculation type automatic weighing device. In particular, when used in a combination calculation type automatic weighing device, it is only necessary to vibrate the supply trough corresponding to the selected weighing device, so not only does it not cause excessive damage to the objects to be fed, but it also prevents the objects from being twisted and packaged. When used as a supply, there are no obstacles such as the wrapping paper coming undone or separation of the wrapping paper from the wrapping paper, and there is an effect that a wide variety of feeding objects can be transported. In addition, a small and lightweight electromagnetic vibration device can be used as the electromagnetic vibration device, and since only the selected supply trough is vibrated, noise caused by vibration can be further reduced.

Furthermore, in this invention, each supply trough is connected in a non-contact chain state, so that each supply trough does not interfere with each other, and the material to be supplied is reliably supplied by the vibration of each supply trough. Even as a collection of supply troughs, it forms one supplied material storage body, so it has the effect of being able to accommodate more supplied materials than if each supply trough individually accommodates the supplied materials. be.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an embodiment of this invention, Fig. 2 is a perspective view of the main part thereof, and Fig. 3 is a schematic vertical side view of a combination calculation type automatic weighing device using the distributed feeding device according to this invention. be. 1...distribution table, 3...supply trough, 3',
3″...Side wall, 7...Electromagnetic vibration device.

Claims (1)

[Scope of utility model registration request] A plurality of supply troughs are arranged radially around a dispersion table provided in the center of the apparatus, each vibratingly feeding the material to be supplied individually, and the side wall of each supply trough overlaps the side wall of an adjacent supply trough. A distributed supply device characterized in that each supply trough is connected in a non-contact chain state by each side wall.