JP2005221272A - Hopper for meter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combination balance for food having a high treating capacity by preventing a damage of an article inputted into a hopper and mitigating an impact force by drop, concerning the hopper used for the combination balance. <P>SOLUTION: This hopper has a square container having an opening part for article input on the upper part and an opening part for article discharge on the lower part, and a gate integrated into the square container, capable of opening and closing the discharge opening of the square container. In the hopper for a meter, an article buffer member comprising an elastic body having a rod-shaped buffer can be mounted detachably on the hopper inside wall in the same direction as the opening/closing direction of the gate of the hopper, or on the hopper inside wall in the opposite direction, or on the hopper inside walls in both directions. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a hopper structure mainly used in a combination weigher in consideration of relaxation of an impact load caused by breakage of an article thrown into the hopper or throwing in.

The combination weigher is a weighing device that obtains a target weight by putting articles having variations in individual weights into containers and weighing them, and combining the measured values. As shown in FIG. 2, the combination weigher has a plurality of hoppers (containers) arranged side by side in a substantially vertical direction with 13, 14, and 16. For example, there is a supply hopper 13 at the top, a weighing hopper 14 at the next stage, and an auxiliary hopper 16 (memory hopper) below it. In such a configuration, when an object to be weighed is put on the dispersion feeder 11, it is guided along a slope of the dispersion feeder to a linear feeder provided for each hopper. The objects to be weighed that have reached the linear feeder are put into the supply hopper 13 at a predetermined timing and transferred from the supply hopper to the next-stage weighing hopper. The object to be weighed put in the weighing hopper is immediately converted into a weight value after the weighing value is stabilized by the weighing means. And the target weight is obtained by combining those weight values variously.

Therefore, when the target weight value is determined, the weighing means constituting the target weight value is specified. That is, a combination of weighing hoppers is selected, and the objects to be weighed are discharged from the selected weighing hoppers to the collecting chute 17, respectively. At this time, the objects to be weighed in the weighing hoppers not selected for combination are transferred to the auxiliary hopper below. The weighing hopper that has been emptied is again supplied with the objects to be weighed for the next combination selection from the upper supply hopper.

However, in the combination weigher having such a configuration, there is a problem that when the object to be weighed is transferred to the weighing hopper, the weighing value is stabilized by the weighing means due to an impact when the object to be weighed falls and the measuring time is prolonged. . In order to obtain an accurate weighing value, the weighing value must be read with a sufficient weighing means stability. However, if the weighing time is prolonged, the weighing cycle of the combination weigher becomes longer and the processing capacity decreases. In recent years, however, improvement in processing capacity has been screamed, and a new review of the prior art is required.

In addition to the problem that the measuring time is extended due to the impact of dropping the object to be weighed, there is a need for a preventive measure against the problem that the object to be weighed is broken by the impact of dropping. This is a problem that, as can be seen from the configuration of the combination weigher described above, the object to be weighed collides with the hopper not only when it is fed from the linear feeder into the supply hopper but also when it is transferred to each hopper. . This problem is disclosed in Non-Patent Documents 1 and 2.

In this non-patent document 1, when the object to be weighed is easily broken or broken like confectionery, rice crackers, peanuts, etc., as described above, the object to be weighed is dropped and moved one after another. Has the disadvantage of cracking or chipping. As a countermeasure, it is disclosed that a buffer body is provided in the hopper to reduce the falling speed of the object to be weighed along the dropping path of the object to be weighed.

Further, Non-Patent Document 2 discloses that a buffer member is provided in the hopper to receive the rod-shaped article falling from the feeder on the inclined surface and guide it to the bottom so that the article to be weighed does not break the rod-shaped article. ing.

Utility Model Publication Gazette Showa 60-185231 Utility Model Bulletin No. 5-9346

However, in this case, when the object to be weighed contacts the buffer plate, the stability of the measured value may be disturbed by the impact force. In other words, once it comes into contact with this buffer plate, a relatively high impact waveform appears due to the impact force at the time of collision, and when the waveform is about to settle, the object to be weighed in contact with the buffer plate reaches the bottom part of the hopper. The impact waveform tends to appear again due to the impact, resulting in a longer measurement time. In this method, the object to be weighed tends to break when it comes into contact with the buffer plate. Although it is described that it is flexible enough to bend slightly due to the collision of the object to be weighed, the plate-like body cannot actually prevent breakage.

Conventionally, as a method for solving such a problem, a structure in which cushion rubber or the like is attached to the hopper with almost no gap has been used. A new problem has arisen that it is not necessarily hygienic in terms of handling foods that are difficult to clean and disinfect.

The present invention solves such a conventional problem, and by preventing the above-mentioned impact force all at once, it prevents breakage of an object to be weighed at once, and at the same time, a combination weighing scale for food with high processing capacity. Is to provide.

In order to solve the above-mentioned problem, a hopper for a measuring instrument according to the present invention is a rectangular container (hopper) having an opening for loading an article at the top and an opening for discharging the article at the bottom. In a hopper having a gate capable of opening and closing the discharge port of the rectangular container incorporated in the container, the hopper inner wall in the same direction as the opening / closing direction of the gate of the hopper and / or the opening / closing direction of the gate of the hopper is opposed to each other An elastic body having an article buffering portion provided on both the hopper inner side wall and / or the inner side wall of the hopper, wherein the buffering portion of the elastic body has a rod shape and the width direction of the gate is The elastic bodies are provided in parallel at predetermined intervals in the inner width direction, and the elastic bodies are provided so as to be inclined downward from each other toward the central portion of the hopper with the inner wall of each hopper as a base end. It is set to.

In the above-described solution, each of the downwardly inclined tips of the elastic body at the central portion of the hopper is provided with a predetermined interval.

In the above-described solution, each of the downwardly inclined tips of the elastic body at the center portion of the hopper is provided in a staggered state.

In the above-described solution, the elastic body is processed with a metallic leaf spring material, the buffer portion is comb-like, and a plate-like portion is provided at the base end portion, and a folded portion is provided at the plate-like portion. Thus, the hopper is detachably attached to the charging opening.

Further, in the above-described solution, the elastic body is processed with a resin, and the buffer portion is comb-like, and the base end portion is provided with a plate upper portion and the folded portion is provided above the base end portion. It is characterized in that it is detachably attached to the charging opening.

In the present invention, in a mainly rectangular hopper, a buffer body made of a rod-like elastic body is provided in the same direction as the opening and closing direction of the discharge gate attached to the hopper or in the opposite direction, and the inner wall of the hopper is used as the base end portion. As it is provided so as to be inclined downward toward the center part in the hopper and detachably provided in the upper opening, it collides with the rod-shaped elastic body when an object to be weighed is introduced from the upper part of the hopper. Since the elastic body is in the shape of a rod, the object to be weighed is in contact with the elastic body very little, and even when it reaches the bottom of the hopper, the impact is so gentle that there is no further damage. Moreover, since it is a rod-shaped elastic body, the impact caused by dropping of the object to be weighed is sufficiently buffered. In the weighing device, the impact waveform does not appear, and the stabilization time after the object to be weighed can be shortened, so the weighing cycle of the combination weigher is shortened and the processing capacity is improved. In addition, by making the buffer part into a comb shape, even if it is a thin fragile object to be weighed, such as potato chips, the part that strongly contacts is greatly bent, and the others are in soft contact, so the conventional plate shape that is generally bent There is an effect that is harder to break than the elastic body.

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a hopper according to an embodiment of the present invention, and is a partially broken view for clearly showing details. Reference numeral 1 denotes the entire hopper, and reference numeral 2 denotes an upper opening from which an object to be weighed is put. Reference numeral 3 denotes a discharge gate, which is a double-open gate in the figure, but a gate for opening and closing the gate may be omitted. Reference numeral 4 denotes a rectangular container, 5 denotes an inner wall, and 6 denotes a rod-shaped buffer portion which is an elastic body, and for example, stainless steel or resin is used. Reference numeral 7 denotes an insertion portion that can be detachably mounted using the upper end surface of the upper opening of the rectangular container. 8 is a metal folding method so that it can be detachably attached at the folding part, and when it is made of resin, a molding method is preferred. Reference numeral 9 denotes a base end bent portion of the rod-like elastic body that is in contact with the inner wall of the hopper. Reference numeral 10 indicates that a plurality of rod-like elastic bodies are arranged in parallel in a comb shape.

FIG. 2 is a schematic diagram showing the configuration of the combination weigher. 11 is a circular dispersion feeder provided in the center, and 12 is a linear feeder, which is arranged radially corresponding to each hopper. Reference numeral 13 denotes a supply hopper provided corresponding to each of the linear feeders. 13a is a discharge gate. Reference numeral 14 denotes a weighing hopper configured to be located immediately below the supply hopper. Reference numeral 15 denotes a weighing device, which is composed of, for example, a load cell. Reference numeral 14a denotes a discharge gate of the weighing hopper, which corresponds to 3 in FIG. Reference numeral 16 is also called an auxiliary hopper, and is a hopper that temporarily holds a weighed object. Reference numeral 17 denotes a collective chute that collects the objects to be weighed discharged from the hoppers. This figure assumes a circular arrangement, and each hopper is adjacently arranged in the circumferential direction.

The flow of the objects to be weighed will be briefly described. When the objects to be weighed are supplied onto the dispersion feeder 11 located at the upper center, the objects to be weighed are conveyed to the periphery by the vibrations of the dispersion feeders and reach the respective linear feeders 12. The objects to be weighed that have reached the linear feeder 12 are put into the corresponding supply hopper 13 in a predetermined sequence. At this time, there is a distance of, for example, 300 mm from the linear feeder to the bottom of the supply hopper. Further, the object to be weighed in the supply hopper 13 is further transferred to the weighing hopper 14 immediately below it. There is also a predetermined interval between the supply hopper 13 and the weighing hopper 14, and an impact due to natural fall occurs when the supply hopper 13 is transferred to the weighing hopper 14. Furthermore, an impact occurs when the weighing hopper 14 or the auxiliary hopper 16 is discharged to the collecting chute 17, and the object to be weighed is damaged. Therefore, it is preferable to provide a buffer portion by the elastic body according to the present invention at the dropping point of the object to be weighed also in the collecting chute.

It is a perspective view of the hopper for measuring instruments of this invention. It is the schematic which shows the structure of a combination scale.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hopper 2 Opening part 3 Discharge gate 4 Rectangular container 5 Inner side wall 6 Rod-shaped elastic body (buffer part)
DESCRIPTION OF SYMBOLS 7 Insertion part 8 Folding part 9 Base end bending part of rod-shaped elastic body 10 Shows comb-shaped part 11 Dispersion feeder 12 Straight advance feeder 14 Weighing hopper 15 Weighing device 16 Auxiliary hopper 17 Collecting chute

Claims (5)

A rectangular container having an opening for loading articles at the top and an opening for discharging articles at the bottom, and a gate incorporated in the rectangular container and capable of opening and closing the discharge port of the rectangular container In the hopper, provided on both the hopper inner wall in the same direction as the gate opening / closing direction of the hopper and / or the hopper inner wall in the direction opposite to the gate opening / closing direction of the hopper and / or the inner wall of the hopper. The elastic body having the article cushioning section, wherein the cushioning section of the elastic body is rod-shaped and arranged in parallel at a predetermined interval with the width direction of the gate as the inner width direction of the hopper. A hopper for a measuring instrument having a structure in which the inner wall of each of the hoppers is provided so as to descend downward toward the center of the hopper with the inner wall as a base end. A rectangular container having an opening for loading articles at the top and an opening for discharging articles at the bottom, and a gate incorporated in the rectangular container and capable of opening and closing the discharge port of the rectangular container In the hopper, provided on both the hopper inner wall in the same direction as the gate opening / closing direction of the hopper and / or the hopper inner wall in the direction opposite to the gate opening / closing direction of the hopper and / or the inner wall of the hopper. The elastic body having the article cushioning section, wherein the cushioning section of the elastic body is rod-shaped and arranged in parallel at a predetermined interval with the width direction of the gate as the inner width direction of the hopper. Each of the hoppers has an inner wall as a base end, and each of the hoppers inclines downward toward the center of the hopper, and the tip of the elastic body at the center of the hopper is inclined downward. Weighing dexterity hopper, characterized in that provided at a predetermined interval. A rectangular container having an opening for loading an article in the upper part and a discharge port for discharging an article in the lower part, and a gate incorporated in the rectangular container and capable of opening and closing the discharge port of the rectangular container In the hopper, provided on both the hopper inner wall in the same direction as the gate opening / closing direction of the hopper and / or the hopper inner wall in the direction opposite to the gate opening / closing direction of the hopper and / or the inner wall of the hopper. The elastic body having the article cushioning section, wherein the cushioning section of the elastic body is rod-shaped and arranged in parallel at a predetermined interval with the width direction of the gate as the inner width direction of the hopper. Each of the hoppers is inclined downward from the inner wall of the hopper toward the center of the hopper, and at the center of the hopper, the tip of the tip of the elastic body is inclined downward. Weighing dexterity hopper Each of encounter, characterized in that provided in the staggered state. The elastic body is processed by a metal leaf spring material, the buffer portion is comb-shaped, a plate-like portion is provided at the base end portion, and a folded portion is provided at the plate-like portion, whereby the hopper 4. The weighing hopper according to claim 1, wherein the weighing hopper is detachably attached to the charging opening. The elastic body is processed with resin, the buffer portion is comb-shaped, a plate-like portion is provided at the base end portion, and a folded portion is provided above the base end portion, so that it can be attached to and detached from the opening opening for the hopper. The hopper for a measuring instrument according to any one of claims 1 to 3, wherein the hopper is attached to be capable of being mounted.

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