JP2001183224A - Distributed feeding device and combined weighing device using the device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To uniformly distribute the injected articles to be measured in the circumferential direction without breaking them. SOLUTION: A conical table 3a is mounted at a position just under an article injecting port. Approximately crossing projections 15a, 15b continued from a central side to the outside are formed on a surface of the table 3a. When the table 3a is rotated and driven by a driving means 3b, the injected articles are distributed from the central side to the outside of the table by means of projection parts 15, and can be uniformly distributed to the radial circumference. As the table 3a is rotated in one direction at a constant speed, the articles to be measured can be distributed without being broken.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispersing and supplying apparatus for uniformly and radially dispersing articles such as food, and more particularly to a dispersing and supplying apparatus capable of dispersing and supplying articles without damaging the articles, and a combination using the same. It relates to a weighing device.

[0002]

2. Description of the Related Art Generally, in a packaging process of a food production line,
2. Description of the Related Art A combination weighing device capable of weighing and discharging articles by a predetermined mass is used for bagging foods having a fine unit of mass. FIG. 6 is a side view showing the combination weighing device. As shown, as shown in FIG.
A supply unit 51 for supplying and radially dispersing articles;
A plurality of stock hoppers 52 arranged circumferentially, and a plurality of weighing hoppers 53 provided below the stock hopper 52
And a funnel-shaped collecting chute 54 provided below the weighing hopper 53.

An object to be weighed is supplied onto a dispersion table 51a disposed at a central position of a linear feeder 51b arranged circumferentially, and the dispersion table 51a and the linear feeder 5 are disposed.
1b radially conveys outward. The objects to be weighed are supplied to the respective weighing hoppers 5 by approximately the same amount via the stock hoppers 52 provided on the respective weighing hoppers 53.
3 and the mass of each is measured. The weighing values of the plurality of weighing hoppers 53 usually have some variation. Therefore, based on the weighed values obtained by the plurality of weighing hoppers 53, a plurality of weighing hoppers are selected and combined so as to have a desired mass. The plurality of weighing hoppers 53 in such a combination are operated to drop the object to be weighed onto the collecting chute 54.

An object to be weighed that has dropped from the weighing hopper 53 is
It collides with the slope of the collecting chute 54 and slides down the slope to fall. The objects to be weighed, which have fallen from the plurality of weighing hoppers 53, slide on the respective slopes and gather at the discharge port, and are collected by the collecting chutes 54.
Fall below. Usually, a device for packing the objects to be weighed is provided below the outlet of the collecting chute 54. For example, if a bag-filling device is arranged, an object to be weighed having a predetermined mass can be packed in a bag.

[0005]

The conical table 51a provided in the supply section 51 rotates an object in one direction, vibrates up and down, or the like to radiate an object to be weighed from the top in a radial direction. Although it was dispersed, uniform dispersion could not be performed. Conventionally, in the configuration in which the rotation speed and the rotation direction of the table 51a are changed, the impact given to the object to be weighed is large,
The object to be weighed could be damaged. Table 5
In the configuration in which the object 1a is vibrated in the vertical direction or in the rotational direction, when the object to be weighed is deviated in one direction on the circumference (in the case of being eccentrically input), this deviation can be uniformly redispersed. could not.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a dispersing and feeding apparatus capable of uniformly dispersing an inputted object to be measured in a circumferential direction without damaging the object to be weighed, and a set using the apparatus. It aims to provide a combined weighing device.

[0007]

In order to achieve the above object, a dispersion supply device according to the present invention is provided in a dispersion supply device for radially distributing and supplying articles input from above, provided below an article input position, A table (3a) formed in a disk shape, a driving means (3b) for driving the table to rotate about the center of the disk of the table, and a projection formed on the surface of the table, from the center side of the table to the outside. At least one protrusion (1
5).

[0008] The table (3a) may be formed in a substantially conical shape having a surface having a predetermined inclination angle.

The projections (15) may be symmetrically arranged on the surface of the table (3a) with the center of the table as a center.

The combination weighing device according to the present invention is provided below a charging position of an object to be weighed, and is provided with a dispersion supply section (2) for dispersing and supplying the object to be circulated around the object. A plurality of hoppers (8) for measuring and selectively dropping and discharging the objects to be weighed, respectively, and disposed below the hoppers;
A collecting chute (10) for collecting and discharging the objects to be weighed discharged from the selected plurality of hoppers, and combining a plurality of hoppers based on the weighed values to collect a predetermined mass of the objects to be weighed; In the combination weighing device to be obtained, the dispersion supply unit includes a table (3a) formed in a disk shape, a driving unit (3b) for driving the table to rotate about the center of the disk of the table, and a surface of the table. At least one protruding portion (15) formed so as to project from the center side of the table to the outside.
And characterized in that:

[0011] According to the above configuration, the table 3a from above.
The articles put into the portion can be evenly distributed in the radial direction by the rotation of the table 3a and the protrusions 15 formed on the table 3a. This protrusion 1
Reference numeral 5 is formed so as to protrude continuously from the center side of the table 3a to the outside, and guides the center side article outward. At this time, since the table 3a is rotated about the center of the disk by the driving means 3b, the object to be weighed is not damaged.

[0012]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a combination weighing device 1, and FIG. 2 is a side view thereof. At the center of the upper portion of the combination weighing device 1 and immediately below the position where the articles are charged, a dispersion supply unit 2 according to the gist of the present invention is provided. This distributed supply unit 2
Is roughly constituted by a circular feeder 3 and a straight feeder 4. In the following description, an article to be dispersed and supplied will be described as an object to be weighed.

The circular feeder 3 has a flat cone-shaped table 3a projecting upward at the center and a driving means 3b for rotating the table 3a. When the supply means (not shown) supplies the objects to be weighed onto the circular feeder 3, a large number of objects to be weighed are constantly stacked on the circular feeder 3, and the objects to be weighed are evenly distributed around the periphery by the rotation of the table 3a. Spilled and supplied.

A plurality of rectilinear feeders 4 are provided in a radial arrangement around the table 3a. Each rectilinear feeder 4 includes a trough 5 that is a linear conveyance path having a substantially V-shaped cross section, and a driving unit 6 that reciprocates the trough 5 in the conveyance direction and linearly moves. The trough 5 of each straight feeder 4 is
They are radially arranged at equal angular intervals in the circumferential direction around the dispersion supply unit 2. Therefore, the objects to be weighed supplied to the troughs 5 of the respective linear feeders 4 are conveyed toward the outside of the arrangement by the movement of the troughs 5 by the driving means 6.

The outer outer end of each trough 5 is in an open state, from which an object to be weighed falls. Below the outer end of each trough 5, a stock hopper 7 is arranged. That is, a plurality of stock hoppers 7 of the same number as the troughs 5 are arranged circumferentially at equal intervals. Each stock hopper 7 is a box with an open upper surface, and a lid that can be opened and closed is attached to the lower surface.

Below each stock hopper 7, a weighing hopper 8 is arranged. That is, a plurality of weighing hoppers 8 of the same number as the stock hoppers 7 are circumferentially arranged at equal intervals. The weighing hopper 8 is a box having an open upper surface, and a lid that can be opened and closed is attached to the lower surface. The weighing hopper 8 is provided with a weighing device, and can measure the mass of the object stored therein.

Below each weighing hopper 8, a memory hopper 9 is arranged. That is, a plurality of memory hoppers 9 of the same number as the weighing hoppers 8 are circumferentially arranged at equal intervals. The memory hopper 9 is a box with an open top,
An openable / closable lid is attached to the lower surface. An object to be weighed by the weighing hopper 8 is stored and held in the memory hopper 9. The mass of the object stored in the memory hopper 9 is held by the control unit of the present apparatus.

As shown in FIG. 2, the stock hopper 7, the weighing hopper 8, and the memory hopper 9 are vertically arranged in this order from top to bottom, and are arranged inside the apparatus from top to bottom. In addition, they are arranged so that the inclination in the discharge direction of the objects to be weighed is gentle. The object to be weighed stored in the memory hopper 9 at the last stage is dropped and discharged by opening the bottom cover.

A plurality of memory hoppers 9 arranged circumferentially
Below, a funnel-shaped collecting chute 10 is provided. The collecting chute 10 of the present example is in the shape of a hollow truncated cone having a relatively large inlet at the upper surface and a relatively small outlet 11 at the lower surface.

FIGS. 3A and 3B show the table 3a, wherein FIG. 3A is a side view and FIG. 3B is a plan view. The projection 15 is fixed to the surface of the table 3a by bonding, welding, or the like, or is integrally formed when the table 3a is formed. The illustrated table 3a has a conical shape, and a narrow linear projection 15 continuous from the center outward is formed on the surface of the table 3a. This projection 1
Reference numeral 5 denotes two relatively long projections 15a which are continuous from the substantially center to the edge of the table 3a, and two relatively short projections which are oriented in a direction orthogonal to the projections 15a and substantially at the center. It is composed of a part 15b.

These projections 15 are formed to have a substantially triangular cross section at the center where the ridge portion is the highest. Each slope 15
c is formed at an obtuse angle. In addition, this protrusion 15
The highest inner height is set to a height that does not exceed the height of the uppermost position at the center of the table 3a (substantially the same height in the drawing). That is, the center end 15d of the projection 15
Are formed substantially horizontally as shown in FIG.

The center of the table 3a is
b is fixed to the rotating shaft 3c. The driving means 3b is constituted by a motor, and rotates the table 3a in a fixed direction (direction A in the figure) at a constant speed when the apparatus is operated.

The operation of the present apparatus will be described. The objects to be weighed are distributed to the stock hopper 7 from the dispersion supply unit 2 to the stock hoppers 7 by the respective linear feeders 4.

The dispersed objects to be weighed are dropped into the respective weighing hoppers 8 by approximately the same amount via the stock hoppers 7, and the masses are measured and then dropped into the memory hoppers 9. The mass of the object to be weighed stored in the memory hopper 9 is stored in the control unit of the present apparatus. Then, a combination of the weighed values of the plurality of memory hoppers 9 that can obtain a desired mass value is calculated, and these memory hoppers 9 are opened. In the meantime, the weighing object is weighed in the weighing hopper 8. After the discharge of the memory hopper 9, the objects to be weighed in the weighing hopper 8 where the weighing has been performed are immediately put into the memory hopper 9 and the discharging is performed in the following combination.

Below the discharge port 11 of the collecting chute 10, a device (not shown) for packing the objects to be weighed is provided, so that the objects to be weighed with a predetermined mass can be packed.

In operation, the table 3a of the dispersion supply unit 2 is rotated at a constant speed in a fixed direction by the driving of the driving means 3b. The objects to be weighed in from the upper part of the table 3a are radially dispersed from the central part to the edge part by the inclination of the surface of the table 3a. At this time, the objects to be weighed are loaded on the table 3a with a predetermined height.

The object to be weighed in contact with the surface of the table 3a is rotated by the rotation of the table 3a.
5 to guide in the radial direction to promote dispersion. The protruding portion 15 acts to agitate the object to be weighed at the lowermost part of the object to be weighed, but the projection surface has a narrow linear shape, the protruding surface is obtusely inclined, and the table 3a is only in one direction. Since the object is rotated at a constant speed, the objects to be weighed can be uniformly dispersed in the radial direction without being damaged.

The projection 15 of the distribution table 3a is
As shown in FIG. 3, a configuration in which at least one or more pieces are provided can be provided. In the case of one, it is sufficient to provide one continuous projection 15a (in the radial direction) from the center to the edge of the table 3a. The projections 15 have a configuration in which the projections 15a and the projections 15b are orthogonal to each other and provided at a total of four at 90 ° intervals. However, an odd number such as five (72 ° intervals) may be provided. Can be provided in a range where the ratio of the protrusions 15 in the above is small. Further, in the above-described embodiment, the cross section of the protrusion 15 has a triangular shape. However, the cross section may be formed in an arc shape in addition to a rounded ridge portion.

As shown in the plan view of FIG. 4, a projection 15e having a predetermined circular arc on the plane may be provided continuously (in the radial direction) from the center to the edge only in the half of the table 3a. it can. According to the protruding portion 15e, the contact state with the object to be weighed is different between the one side 15ea of the arc and the other side 15eb, so that the effect of stirring the object to be weighed can be enhanced.

As yet another example, as shown in the perspective view of FIG. 5, the table 3e has a surface formed not in a conical shape but in a flat shape. Since the surface of the table 3e is not inclined, it is not possible to obtain the dispersion effect due to the natural fall of the object to be weighed. However, the table 3e can be dispersed by contact with the projections 15 when the table 3e rotates.

As described above, by providing a continuous projection from the center to the edge of the table 3a, the effect of dispersing the objects to be weighed can be obtained. In the above-described embodiment, the configuration of the dispersion supply device has been described as an application example of the combination weighing device. However, the same operation and effect can be obtained by applying the invention to various devices that want to distribute and supply the objects to be weighed.

[0032]

According to the dispersion feeding apparatus of the present invention, the table is provided with a continuous projection from the center to the outside, and the table rotates in one direction at a constant speed. It is possible to distribute and supply evenly around the radial periphery without breaking. Further, if the table is formed in a conical shape, it is possible to promote the dispersion from the center to the outside by the natural fall of the article. Further, the configuration in which the protrusions are provided in a substantially cross shape on the table can facilitate dispersion from the center to the outside. By applying the above-described dispersion supply device to a combination weighing device that combines and weighs objects to be weighed, it becomes possible to perform uniform dispersion supply in the radial direction, and to improve the accuracy of the combination to achieve appropriate combination. The weighing value can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of application to a combination weighing device showing a dispersion supply device of the present invention.

FIG. 2 is a side view of the device.

FIG. 3 is a diagram showing a dispersion supply device.

FIG. 4 is a view showing a modified example of a projection.

FIG. 5 is a diagram showing a modification of the table.

FIG. 6 is a diagram showing an outline of a combination weighing device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Combination weighing device, 2 ... Dispersion supply part, 3 ... Circular feeder, 3a ... Table, 3b ... Drive means, 4 ... Straight feeder, 5 ... Trough, 6 ... Drive means, 7 ... Stock hopper, 8 ... Weighing hopper 10, a collective chute, 15: a projection.

Claims (4)

[Claims] 1. A dispersion supply device for radially dispersing and supplying articles input from above, comprising: a table (3a) provided below the input position of the articles and formed in a disk shape; A driving means (3b) for rotating and driving the table; and at least one protrusion (15) projecting from the center of the table and continuing from the center side of the table outward. Dispersion supply device characterized. 2. The dispersion feeding apparatus according to claim 1, wherein the table has a surface formed in a substantially conical shape having a predetermined inclination angle. 3. The dispersion supply device according to claim 1, wherein the projections (15) are symmetrically arranged on the surface of the table (3a) with the center of the table as a center. 4. A dispersion supply section (2) which is provided below an input position of an object to be weighed and supplies the object to be scattered around, and a plurality of dispersion supply sections are arranged around the dispersion supply section and each weighs the object to be weighed. A plurality of hoppers (8) for selectively dropping and discharging, and a collecting chute (10) disposed below the hopper and collecting and discharging the objects to be weighed discharged from the selected hoppers. In a combination weighing apparatus having a weighing object having a predetermined mass by combining a plurality of hoppers based on weighing values, the dispersion supply unit includes a table (3) formed in a disk shape.
a) a driving means (3b) for driving the table to rotate about the center of the disk of the table; and at least one protrusion formed on the surface of the table and continuous from the center of the table outward. (15), a combination weighing device.