JPH0142010Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention has a plurality of supply troughs arranged radially to disperse and supply the input material to a plurality of weighing machines installed around the device. The present invention relates to a combination calculation type automatic weighing device in which each supply trough is individually vibrated at a predetermined time and for a predetermined period of time to supply a material to be supplied to each weighing machine.

(Prior Art) A conventional distributed feeding device of this type in a combination calculation type automatic weighing device includes a parts feeder or a ball feeder that distributes the material to be fed in the circumferential direction, with a plurality of outlets provided on the outer periphery of the feeder. A shutter that opens and closes in response to a signal from the weighing machine is installed in each weighing machine, and a parts feeder or ball feeder is constantly driven and the shutter is opened at a predetermined time to supply the material to each weighing machine. Alternatively, a plurality of supply troughs are integrally formed with the ball feeder and arranged radially around the outer periphery, and a rotating hopper having a plurality of bucket-shaped chambers is installed in each supply trough so as to rotate intermittently at predetermined times, and the parts feeder Alternatively, there was one in which the ball feeder and each supply trough were constantly vibrated, and the rotating hopper was intermittently rotated at predetermined times to supply the material to each weighing machine.

(Problem to be solved by the invention) Of the two types described in the section of the prior art, the first type has the problem that the object to be supplied may be destroyed or damaged by the shutter. The supplied material was caught or scattered. On the other hand, in the case of the products described later, the rotating hopper may damage the material, or the material may get caught between the rotating hopper and the supply trough, and each supply trough constantly vibrates. Because of this, the wrapping paper for the supplies, especially those that were twisted and wrapped, sometimes came undone. Furthermore, in order to vibrate the parts feeder or ball feeder and each supply trough integrally formed therewith, a vibration generator with a large vibration capacity is required, and the vibration noise generated by the vibration generator is high, making it difficult to manufacture the supply trough. It wasn't easy either.

Therefore, the above-mentioned conventional combinational calculation type automatic weighing devices have a problem with the distributed feeding device, and each of them has the disadvantage that there are many types of materials that cannot be supplied, and the specification range of the materials to be supplied is limited. Ta.

(Means for solving the problem) The present invention is intended to solve the above drawbacks.
Its configuration is as described in the claims for utility model registration: ``The supplied material is distributed over multiple routes and supplied to multiple weighing machines, and the weight of the supplied material weighed by each weighing machine is In a combination calculation type automatic weighing device that performs combinations for a predetermined weight and discharges the materials selected for the combination, there is a dispersion table for dispersing the materials, and a radial space around the distribution table. In addition to arranging
A supply trough equipped with a plurality of electromagnetic vibration devices for receiving materials supplied from the distribution table; A combination calculation type automatic weighing device consisting of a pool hopper that vibrates and receives the material to be supplied using this vibration. ” is the gist of the idea.

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a dispersion section (hereinafter referred to as a dispersion table) formed in a conical shape, which can be mounted and supported on an electromagnetic vibration device 2. Reference numeral 3 denotes a plurality of supply troughs arranged radially around the outer periphery of the dispersion table 1, each of which has its rear end positioned below the dispersion table 1 so as not to come into contact with the dispersion table 1. One side wall 3' of the supply trough 3 is a vertical wall;
In addition, approximately the front half is a mountain-shaped vertical wall 4, and the other side wall 3'' is approximately the front 2/3 is a mountain-shaped sloped wall 5.
The remaining approximately 1/3 is an inclined wall 6 that slopes outward along approximately the rear half of one side wall 3' of the adjacent supply trough 3, and approximately the rear half of the side wall 3'' is approximately the rear half of one side wall 3' of the adjacent supply trough 3. They are stacked on top of each other on the side wall 3' of the supply trough 3 so as not to come into contact with it. Reference numeral 7 denotes an electromagnetic vibration device for vibrating each supply trough 3, to which each supply trough 3 is attached and supported. Further, reference numerals 8 and 8' denote a light emitter and a light receiver that are placed opposite to each other with the dispersion table 1 in between, which detect the amount of the material to be supplied on the dispersion table 1 and transfer the material from the supply device (not shown) to the dispersion table 1. The projector 8 and the receiver 8' are fixed to supports 9 and 9', respectively, so that their vertical positions can be freely adjusted. frame 1 through 12
1, and an electromagnetic vibration device 7 is placed on the support stand 10 in a circular shape.

On the other hand, reference numeral 13 denotes a pool hopper 14 located at the bottom of the tip of the supply trough 3, a weighing hopper 15 located at the bottom thereof, a weighing mechanism section 16 for weighing the weight of the material to be supplied in the weighing hopper 15, and the pool hopper 14. , and the lever mechanism 1
7 and 18, and a drive section 19 for opening and closing both hoppers 14 and 15, and is installed in a circular shape on the frame 11 at the lower end of each supply trough 3. 20 has its tip slightly protruding from the upper surface of the frame 11.
An internally supported chute, each weighing machine 13
The materials discharged from the weighing hopper 15 are collected in a chute 20 and discharged to a bucket conveyor (not shown).

In the above configuration, the amount of material accumulated on the dispersion table 1 is detected by the emitter 8 and the receiver 8',
Even with this detection signal, the object to be supplied is transferred from the unillustrated supply device above the dispersion table 1 to the dispersion table 1.
feed on top. The material to be supplied onto the dispersion table 1 is gradually propelled radially from the conical surface of the dispersion table 1 toward the outer circumference, and is supplied in appropriate amounts to each supply trough 3, and the supply trough 3 is deposited and filled. Ru. The material to be supplied into each supply trough 3 is gradually propelled toward the tip in the supply trough 3, which is performing an inclined linear reciprocating vibration motion by the linear reciprocating vibration of each electromagnetic vibration device 7, and from the tip. It is thrown into each pool hopper 14. Each supply trough 3 starts vibrating in response to a signal from the weighing machine 13 when the pool hopper 14 discharges the material to be supplied and becomes empty, and a timer provided for each trough 3 causes the vibration to continue for a certain period of time. The vibration time may be different for each supply trough 3 or may be the same time.

On the other hand, the material to be supplied into the pool hopper 14 is further introduced into a weighing hopper 15 and weighed by a weighing mechanism section 16, as will be described later. Then, an electronic circuit calculates a combination of the weight values of the objects weighed by each weighing machine 13, and a combination of weights equal to or close to a predetermined weight is selected, and the weighing hopper 15 corresponding to the combination is selected. The chute 20 is opened and closed by the drive unit 19 and the lever mechanism 18, and the material to be supplied is discharged into the chute 20 and further collected on a bucket conveyor (not shown). The weighing hopper 15, which has been emptied after the material to be fed has been discharged, is equipped with a drive unit 19.
The material to be supplied is inputted from the pool hopper 14 which is opened and closed by the lever mechanism 17, and the supply trough 3 is vibrated for a certain period of time by a timer in response to a signal from the weighing machine 13, and the material is supplied to the empty pool hopper 14. Things are thrown in. In parallel with the operation of feeding the material into the pool hopper 14 from the supply trough 3, the material fed into the weighing hopper 15 is weighed, and the combined weight values are calculated again to obtain a predetermined weight. A combination of weights equal to or close to , is selected, and the above operation is then repeated.

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 corresponding pool hopper 14 is not opened or closed, and the corresponding supply trough 3 also does not vibrate.

In the above embodiment, a case has been described in which the material to be supplied is distributed and supplied to the weighing hopper of each weighing machine of a combination calculation type automatic weighing device, but it goes without saying that this invention can also be applied to a case where combination calculation is not performed. Nor.

As explained above, this device is capable of distributing the supplied material radially outward from the center, and also supplies the material individually to the weighing machine located below the tip. Therefore, when supplying a material to a weighing machine selected for combination, it is sufficient to vibrate only the supply trough corresponding to that weighing machine. Therefore,
There is no need to excessively vibrate the object to be fed, and when a twisted package is used as the object to be fed, there are no problems such as the wrapping paper coming undone or the object being separated from the wrapping paper. In addition, the electromagnetic vibration device 7 can be small and lightweight, and since only the selected supply trough vibrates, the noise caused by the vibration can be made smaller than before.

The present invention is characterized in that no shutter device is provided at the end of the supply trough, but if the metering hopper is provided directly at the bottom of the end of the supply trough without a shutter device, there are the following drawbacks. That is, the operation of supplying and stopping the material to be supplied is normally performed by energizing or cutting off the electromagnetic vibration device that vibrates the supply trough. Even if a power cutoff operation is performed to stop the supply, the supply trough, which does not have a brake device, does not immediately stop the supply operation, and although it is attenuated, the remaining vibration force transfers the supplied material, albeit slightly. Furthermore, even after the supply trough has completely stopped, the materials to be supplied continue to accumulate in layers in the trough, and since the trough end is open, it cannot be triggered by the opening or closing of the hopper, the operation of the conveyor, or any other type of shock or vibration. As a result, the pile of material at the end of the trough collapses and a small amount of material falls into the weighing hopper. And this inconvenience occurs regardless of the passage of time. If the above situation occurs, items may be added during weighing or after weighing is complete.
The results of high-precision combinational weighing of incision angles are wasted.

In order to solve the above-mentioned problems, the present invention temporarily stores the material for next weighing between the supply trough without a shutter device and the weighing hopper.
Furthermore, a pool hopper is installed corresponding to each weighing hopper to catch the supplies falling from the end of the supply trough and to prevent the weighing accuracy from being disturbed.

In addition, since each supply trough is individually vibrated for a set time using an electromagnetic vibration device, the amount of material to be supplied to the pool hopper can be adjusted, resulting in a wider measuring range and the ability to make fine adjustments. 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 an example of a sectional view of the main part taken along the line A--A in FIG. 1... Distributed table, 3... Supply trough, 13
... Weighing machine, 14 ... Pool hopper, 15 ...
Weighing hopper.

Claims (1)

[Scope of utility model registration request] The materials to be supplied are distributed over multiple routes and supplied to multiple weighing machines, and the weights of the materials weighed by each weighing machine are combined, combined for a predetermined weight, and selected for the combination. In the combination calculation type automatic weighing device which discharges the supplied material,
a distribution table for dispersing materials to be supplied; a supply trough with a plurality of electromagnetic vibration devices arranged radially around the distribution table and receiving materials to be supplied from the distribution table; the supply trough has a pool hopper; After it became empty,
A combination calculation type automatic weighing device consisting of a pool hopper that vibrates the corresponding electromagnetic vibration device for a predetermined time set separately for each, and receives the material to be supplied by the vibration.