JPH02654Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention disperses the material fed into the upper part of the device into multiple paths, calculates the weight value of the material in each path, and calculates the weight value of the material in each path. A combination calculation that calculates a combination of objects with a predetermined weight or the weight closest to it by combining them in a predetermined manner, and then discharges objects related to the determined combination from each route to obtain an object with a set weight. Related to type automatic weighing device.

As a conventional distributed feeding device for a combination calculation type automatic weighing device, a plurality of outlets are provided on the outer periphery of a ball feeder linked to an electromagnetic vibration device, and each outlet is provided with a shutter that opens and closes in response to a signal from the weighing machine. While constantly vibrating the ball feeder,
The above-mentioned shutter is opened at a predetermined time to supply the material to each weighing machine, or a plurality of supply troughs are integrally formed radially around the periphery of the ball feeder, and each supply trough has a plurality of supply troughs. It is known that a rotary hopper having a bucket-shaped chamber is provided, and the ball feeder is constantly vibrated together with each supply trough, and the rotary hopper is intermittently rotated at predetermined times to supply the material to each weighing machine. There is.

(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 apparatus, 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.

This invention aims to provide a new combinational calculation type automatic weighing device that does not cause such problems.

(Means for Solving the Problems) In order to solve the above-mentioned problems, this invention provides a distributed feeding device that distributes the material to be fed into a central portion over a plurality of routes and feeds them individually, and the distributed feeding device. A plurality of pool hoppers are arranged at the lower stage around the hopper to temporarily store the material to be supplied discharged from each path of the distributed supply device; and a plurality of metering hoppers for receiving and metering the feed. Then, by combining the weight values of the objects to be fed obtained in each weighing hopper, a combination of objects having a predetermined weight or a weight closest to it is determined, and the objects to be fed according to the determined combination are discharged from the corresponding weighing hopper. I'll do what I do.

The above-mentioned dispersion feeding device has a conical dispersion table disposed in the center of the device, and a plurality of conical dispersion tables arranged radially around the dispersion table at a lower stage so as to individually feed the objects to be supplied. each supply trough is linked to an electromagnetic vibration device, and each supply trough is configured to individually feed the material to be supplied by the vibration of the vibration device.

(Function) The material to be supplied fed into the dispersion supply device is distributed radially into a plurality of paths within the device, and when the lower pool hopper becomes empty, it is discharged from the tip of the corresponding path and supplied to the lower pool hopper. Ru.
Further, when the lower weighing hopper becomes empty, the material to be supplied that has been put into the pool hopper is discharged from the corresponding pool hopper, is supplied to the lower weighing hopper, and is weighed. Then, the weight values of the objects weighed by each weighing hopper are combined in a predetermined manner, and a combination of objects having a predetermined weight or a weight closest to it is selected. is discharged from the corresponding metering hopper.

In addition, in the weighing hopper that discharged the material to be supplied,
A new material to be supplied is supplied from the corresponding pool hopper again, and the material to be supplied is also supplied to the pool hopper from the corresponding path of the distributed feeding device, and thus the weight value of the material to be supplied to each weighing hopper is calculated again. The combinatorial operation is performed by
A feedstock of a predetermined weight or a weight closest to the predetermined weight is selected.

(Example) Next, an example of this invention will be described based on the drawings.

Dispersion table 1 located in the center of the upper stage of the device
is formed into a conical shape and is mounted and supported on the electromagnetic vibration device 2 to perform helical reciprocating vibration. That is, the conical dispersion table 1 is configured to reciprocate around its central axis at a predetermined angle so that the screw moves forward and backward. Further, on the outer periphery of the dispersion table 1, a supply trough 3 forming a feeding route for the material to be supplied is mounted and supported on an electromagnetic vibration device 7, and the rear end of the trough is connected to the lower side of the periphery of the dispersion table 1. A plurality of them are arranged radially around the table 1 so as not to come in contact with the table 1. One side wall 3' of each supply trough 3 is vertical, and the front 2/3 vertical wall 4 is shaped like a mountain, while the other side wall 3'' opposite thereto is vertical. ,
Its front 2/3 is shaped like a mountain, and its upper half 5 is
The rear 1/3 side wall 6 that is further inclined outward at a predetermined angle is formed so as to overlap the rear 1/3 of one side wall 3' of the adjacent supply trough 3 in a non-contact state. ing.

Further, 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 adjusted freely, and detect excess or deficiency of the material to be supplied on the dispersion table 1. If the material to be supplied is insufficient, 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.

Thus, the distributed supply device consisting of the distribution table 1 mounted and supported on the electromagnetic vibration devices 2 and 7 and each supply trough 3 is mounted on the support base 10 fixedly supported on the frame 11 via a plurality of legs 12. A weighing machine 13 is arranged at the lower end of each supply trough 3, and a funnel-shaped chute 20 is arranged at the lower part of the weighing machine 13.

Each weighing machine 13 includes a pool hopper 14, a weighing hopper 15 disposed below the pool hopper, a weighing mechanism section 16 that supports the hopper 15 and weighs the material fed into the hopper 15, and 14, and lever mechanism 17,
The chute 20 also has a drive section 19 for opening and closing the hoppers 14 and 15, and the chute 20 has an upper peripheral edge that is connected to the frame 11.
It is mounted and supported inside the frame 11 in a state where it slightly protrudes from the top surface.

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 material is moved from the conical surface of the dispersion table 1 to the outer periphery by the torsional reciprocating vibration of the dispersion table 1 via the electromagnetic vibration device 2. It is gradually propelled in the direction and supplied to each supply trough 3 in appropriate amounts. Further, the material to be supplied to each supply trough 3 is gradually propelled toward the tip by tilted linear reciprocating vibration by each electromagnetic vibration device 7, and is thrown into each pool hopper 14 from the tip. Ru. 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 empty pool hopper 14
The supply trough 3 corresponding to the pool hopper 14 starts vibrating in response to a signal from the weighing machine 13 and supplies the material to the corresponding pool hopper 14 . The supply time at that time is regulated to a certain time by a timer for each trough 3;
They may be different or may be the same.

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. 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. As a result, the materials to be supplied are discharged from the selected several weighing hoppers 15 into the chute 20, where they are collected into materials whose weight is equal to or closest to a predetermined weight, and are discharged to a bucket conveyor (not shown). be done.

The weighing hopper 15, which has been empty 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. The material to be supplied is fed through the supply trough 3, which vibrates for a predetermined period of time in response to a signal from the weighing machine 13. In addition, in parallel with the operation of charging the material to be supplied from the supply trough 3 to the pool hopper 14, the material to be supplied into the weighing hopper 15 is weighed, and the combination calculation of each weight value is again executed to obtain a predetermined value. The combination of weights equal to or closest to the weights 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 on top.

As explained above, according to this invention, the material to be supplied fed into the center of the device is distributed over multiple routes, and is then distributed through the supply trough of each route.
Since the material to be supplied can be supplied to the pool hopper and the weighing hopper individually, as a distributed feeding device, it is only necessary to vibrate the supply trough corresponding to the weighing hopper selected for the combination. There is no need to excessively vibrate the object, and when the object to be supplied is a twisted package, there are no problems such as the wrapping paper coming undone or separating from the wrapping paper. In addition, the electromagnetic vibration device that vibrates the supply trough can be small and lightweight.
Moreover, since it is sufficient to vibrate only the selected supply trough, noise caused by vibration can be reduced compared to the conventional method.

On the other hand, in a supply trough without a brake device, even after the electromagnetic vibration device is stopped, the remaining vibration causes the material to be transported, albeit slightly, and even if the supply trough has completely stopped, the tip of the trough remains open. Therefore, the material to be fed at the tip of the trough may fall due to disturbances such as vibration. However, in this invention, a pool hopper for temporarily storing the material to be supplied is provided between the supply trough and the weighing hopper, and the hopper receives the material falling from the supply trough. No measurement errors occur due to such leakage, and highly accurate combination measurement becomes possible.

In addition, although it takes time to supply the material through the supply trough, this invention supplies the material to the pool hopper and stores it during the weighing operation of the weighing hopper.
Since the material to be supplied is then discharged to the weighing hopper at once, the feeding time to the weighing hopper is shortened, and the operating cycle of the device itself is also shortened.

[Brief explanation of the drawing]

FIG. 1 is a plan view of one embodiment of the distributed feeding device, FIG. 2 is a perspective view of the main parts thereof, and FIG. 3 is a schematic vertical side view of the combination calculation type automatic weighing device according to this invention. 1... Distributed table (distributed supply device), 3...
Supply trough (distributed supply device) 2, 7... Electromagnetic vibration device (distributed supply device), 14... Pool hopper,
15...Measuring hopper.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A distributed feeding device that distributes and individually feeds a material to be fed into a central portion over a plurality of routes; A plurality of pool hoppers that temporarily store the material to be supplied discharged from each route of the distributed supply device, and a plurality of pool hoppers arranged at the lower stage of each pool hopper to receive and weigh the material to be supplied discharged from each pool hopper. A combination calculation type automatic weighing device characterized by comprising a weighing hopper and a weighing hopper. (2) The above-mentioned dispersion supply device includes a conical dispersion table disposed in the center, and a plurality of dispersion tables arranged radially around the dispersion table at a lower stage so as to individually feed the objects to be supplied. A combination calculation type automatic weighing device according to claim 1, characterized in that the device comprises a supply trough. (3) The combination calculation type automatic weighing device according to claim 2, wherein the supply trough is linked to an electromagnetic vibration device.