JP2020159786A - Trough for rectilinear feeder and combination balance including the same - Google Patents

Abstract

To provide a trough for a rectilinear feeder, which can suitably convey a small and large quantity of articles without changing the trough.SOLUTION: A trough for a rectilinear feeder includes: a main conveyance path F which is formed by a bottom plate 7a and a pair of lateral plates 7b, 7c; and a partition wall 14 which protrudes at an intermediate part in a width direction of a bottom surface of the main conveyance path F and along a conveyance direction, and divides the main conveyance path F into two small-width conveyance paths f. The partition wall 14 has a chevron cross section, and the depth of the small-width conveyance paths f, which is defined by the height of the partition wall 14, is smaller than that of the main conveyance path F.SELECTED DRAWING: Figure 7

Description

The present invention relates to a trough for a straight-moving feeder that directly conveys an article such as confectionery by vibration, and a combination scale provided with the trough.

Generally, in a combination scale, articles distributed and transported by a distributed feeder are sent to a plurality of straight feeders arranged around the scale, and articles vibrated and conveyed by the straight feeder are sent to a weighing hopper via a supply hopper for weighing. A combination calculation is performed based on the weighing value of the weighing hopper, a plurality of weighing hoppers having a predetermined weight are selected, articles are discharged from the selected weighing hoppers, and the discharged articles are packaged by a packaging machine. ing.

In the above-mentioned combination scale, for example, when producing a packaged product in a small bag, the amount of articles transported to the supply hopper by the straight feeder is small, and when producing a packaged product in a large bag, the straight feeder is used. The amount of goods to be transported to the supply hopper becomes large.

Examples of the straight-ahead feeder for transporting a small amount of articles include a trough having a V-shaped cross section and a trough having a substantially V-shaped cross section having a narrow bottom surface, as described in Patent Document 1. The one used is known.

A trough having a V-shaped or substantially V-shaped cross-sectional shape forms a transport passage in which a large number of articles cannot be arranged side by side, so that a small amount of articles can be stably transported. It is difficult to stably transport a large amount of articles having a small cross section. Therefore, for transporting a large amount of articles, a trough having an inverted trapezoidal cross-sectional shape having a large bottom surface on which a large number of articles can be arranged side by side and having a large cross-sectional area of the transport passage is used.

That is, conventionally, a trough having a V-shaped or substantially V-shaped cross-sectional shape and a trough having an inverted trapezoidal cross-sectional shape having a wide bottom surface are prepared in advance to determine the amount of articles to be transported. Depending on the situation, I tried to use different troughs.

Jikkenhei No. 2-41124

However, the number of straight feeders deployed around the distributed feeder is large, and not only is it time-consuming to replace troughs, but it is also time-consuming and costly to manage a large number of troughs.

The present invention has been made in view of these points, and is a trough for a straight-ahead feeder capable of stably transporting an article regardless of the amount of the article transported, and a combination provided with the trough. The purpose is to provide a scale.

In order to achieve the above object, the present invention is configured as follows.

(1) The trough for a straight feeder according to the present invention is a trough for a straight feeder on which an article is placed and vibrated and conveyed, and is a pair of facing side plates erected from both sides of the bottom plate portion and the bottom plate portion. A plurality of the main transport passages are provided along the transport direction at an intermediate portion between the main transport passage formed by the portions and the width direction of the bottom surface of the main transport passage perpendicular to the transport direction of the article. The width of the narrow transport passage is defined by the height of the partition, and the cross-sectional shape of the partition is mountain-shaped, and the depth of the narrow transport passage is the depth of the main transport passage. It is characterized by being shallower than.

According to the trough for a straight-ahead feeder of the present invention, when a small amount of goods is transported, when the supply amount of the goods to the trough is small, the goods are distributed and guided to a plurality of narrow transport passages having a shallow cross section and almost all of them. It is transported little by little without overlapping.

Further, in the case of transporting a large amount of articles, when the supply amount of the articles to the trough is large, the articles overlap higher than the partition wall portion, and the articles are stably transported in a large amount by the wide main transport passage having a large cross section. Can be done.

(2) In a preferred embodiment of the present invention, the partition wall portion is projected from the central portion in the width direction, and the narrow transport passage is partitioned on both sides of the partition wall portion in the width direction.

According to this embodiment, when a small amount of articles are transported, the articles supplied to the trough are distributed and guided to two shallow transport passages having a small cross section on both sides of the partition wall, and the small amount is hardly overlapped. It is transported one by one. Further, when a large amount of articles are transported, the articles supplied to the trough overlap each other higher than the partition wall portion, and are stably transported in a large amount by a wide main transport passage having a large cross section.

(3) In another embodiment of the present invention, the partition wall portion is projected over the entire length of the main transport passage.

According to this embodiment, when a small amount of articles are transported, the articles are sorted into one of a plurality of narrow transport aisles at the time when the articles are supplied to the trough, and thereafter, the articles are sorted. It is stably transported in a row without changing the narrow transport passages.

(4) In still another embodiment of the present invention, the width of the main transport passage and the width of the narrow transport passage are constant over the entire length in the transport direction.

According to this embodiment, the amount of articles in each part from the start to the end of the article in the transport direction in the trough is stable, and the amount of articles sent out from the end in the transport direction is stable.

(5) In one embodiment of the present invention, the width of the partition wall on the bottom surface of the main transport passage is approximately one-third of the total width of the bottom surface of the main transport passage.

According to this embodiment, the width of each narrow transport passage on both sides of the partition wall portion is approximately 1/3 of the width of the main transport passage, and a small amount of goods and a large amount of goods can be suitably transported.

(6) The combination scale according to the present invention has a dispersion feeder that conveys the supplied article to the peripheral edge portion and an article that is arranged around the dispersion feeder and vibrates and conveys the article supplied by the dispersion feeder to the outside. A plurality of straight-ahead feeders, a plurality of supply hoppers provided corresponding to the straight-ahead feeders, and a plurality of supply hoppers for temporarily holding and discharging the articles from the straight-ahead feeders, and a plurality of supply hoppers corresponding to the respective supply hoppers. A combination scale provided with a plurality of weighing hoppers for temporarily holding an article discharged from the supply hopper and weighing the article, and performing a combination calculation based on the weighing value of the article measured by the weighing hopper. ,
The plurality of straight-ahead feeders include any of the troughs (1) to (5) above.
According to the combination scale of the present invention, it is possible to stably carry out a small amount of goods and a large amount of goods without replacing the trough. As a result, it is possible to reduce the cost required for trough replacement and management.

According to the trough for a straight feeder according to the present invention, when a small amount of goods is transported, a small amount of goods can be transported by a narrow transport passage having a shallow cross section and a small cross section, which is partitioned by a partition wall, while a small amount of articles can be transported. A large amount of goods can be stably transported by the main transport passage deeper than the narrow transport passage and having a large cross section.

Further, according to the combination scale according to the present invention, it is not necessary to prepare two types of troughs for a small amount of goods and a large amount of goods, and it is also possible to replace a large number of troughs according to the small amount of goods and a large amount of troughs. It becomes unnecessary and the cost can be reduced.

FIG. 1 is a schematic view showing a schematic configuration of a combination scale according to an embodiment of the present invention. FIG. 2 is a plan view showing the upper part of the combination scale. FIG. 3 is a perspective view showing a part of the upper part of the combination scale. FIG. 4 is a perspective view of the trough of the straight feeder. FIG. 5 is a plan view of the trough of the straight feeder. FIG. 6 is a side view of the trough of the straight feeder. FIG. 7 is a vertical sectional front view showing an article transport mode in a trough of a straight-ahead feeder, in which (a) shows a small amount of transport and (b) shows a large amount of transport. FIG. 8 is a longitudinal front view of the trough of another embodiment of the present invention. FIG. 9 is a plan view of a trough according to still another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic view showing a schematic configuration of a combination scale according to an embodiment of the present invention, and FIG. 2 is a plan view showing an upper part of the combination scale.

The combination scale of this embodiment is used, for example, in a weighing and packaging line in which articles such as chocolate confectionery and candy are weighed by a predetermined weight and packed in a bag.

At the center of the upper part of the combination scale of this embodiment, a dispersion feeder 1 having a conical top cone 5 that radially disperses and conveys articles conveyed by a supply device (not shown) and dropped and supplied is provided. Around the dispersion feeder 1, a large number (14 in this example) of straight-ahead feeders 2 that linearly convey the articles carried out from the peripheral edge of the dispersion feeder 1 are arranged radially. There is.

Further, a supply hopper 3 whose opening / closing control is controlled by the gate 3a is disposed below the transport end portion of each straight feeder 2, and a weighing hopper whose opening / closing control is controlled by the gate 4a is provided below each supply hopper 3. 4 are arranged respectively.

The top cone 5 of the dispersion feeder 1 is vibration-driven by the vibration mechanism 6.

The straight-ahead feeder 2 includes a trough 7 on which an article is placed and conveyed, and a vibration mechanism 8 that vibrates and drives the trough 7.

The supply hopper 3 receives the article dropped and discharged from the end of the straight feeder 2 and temporarily holds the article, and when the measuring hopper 4 arranged below the article is emptied, the article is dropped and discharged and put into the metering hopper 4. Further, a weight sensor 9 such as a load cell for measuring the weight of an article in the hopper is connected to each weighing hopper 4, and the weighing data by each weight sensor 9 is output to the control device 16.

The articles discharged from the measuring hopper 4 are guided downward to the center of the device by the collecting chute 10, are collected in the collecting hopper 12 via the collecting funnel 11 arranged at the lower end of the chute, and are temporarily held.

The control device 16 that controls each unit performs a combination calculation based on the weight of the article to be weighed by the weighing hopper 4, selects a plurality of weighing hoppers 4 within a predetermined weight range, and selects the plurality of weighing hoppers 4 from the selected weighing hopper 4. The article is discharged to the collecting hopper 12 and temporarily held. When an discharge request signal is input from a packaging machine (not shown) to the control device 16, the gate 12a of the collective hopper 12 is open-controlled, and the held article is discharged and put into the packaging machine.

FIG. 3 is a perspective view showing a part of the upper part of the combination scale, FIG. 4 is a perspective view of the trough 7 of the straight feeder 2, FIG. 5 is a plan view of the trough 7, and FIG. It is a side view of the trough 7. In the following, for convenience of explanation, the horizontal direction orthogonal to the transport direction of the article of the trough 7 is referred to as a left-right direction or a lateral direction.

The trough 7 has a bottom plate portion 7a formed with a constant lateral width over the entire length of the article in the transport direction indicated by the arrow D in FIG. 5, and stands diagonally outward and upward from both left and right ends of the bottom plate portion 7a. It is provided with a pair of side plate portions 7b and 7c. The bottom plate portion 7a and the side plate portions 7b, 7c form a wide, inverted trapezoidal main transport passage F having a large cross section. Further, the trough 7 includes a back plate portion 7d erected at the start end portion of the bottom plate portion 7a in the transport direction of the article, and an inclined portion 7f inclined upward toward the end portion of the bottom plate portion 7a in the transport direction of the article. ing. Further, a support plate 13 for attaching / detaching to / from the vibration mechanism 8 is provided on the lower surface of the trough 7, that is, the outer bottom surface of the bottom plate portion 7a.

Of the pair of side plate portions 7b and 7c facing the upward spread, one side plate portion 7c has its upper end curved over the entire length and folded outward, and the folded portion 7e is a trough 7 arranged adjacently. It covers the upper end edge of the other side plate portion 7b of the above from above.

At the bottom surface forming the inverted trapezoidal main transport passage F having a wide cross section and a large cross section, that is, at the center of the inner bottom surface of the bottom plate portion 7a in the width direction, a partition wall portion 14 having a triangular chevron shape in the longitudinal front is a main transport passage. It is projected over the entire length of F.

As shown in FIG. 5, the partition wall portion 14 has a width fw (≈Fw / 3) that is approximately one-third of the width Fw of the bottom surface of the main transport passage F in its total length, and as a result. On both the left and right sides of the partition wall portion 14, a narrow transport passage f having a bottom width of about one-third of the bottom width of the main transport passage F and a constant depth over the entire length in the transport direction of the article is partitioned. Form.

The depth of the narrow transport passage f is defined by the height of the partition wall portion 14 that partitions the narrow transport passage f, and the depth of the narrow transport passage f is compared with the depth of the main transport passage F. It is shallow. The height of the partition wall portion 14 is preferably slightly larger than, for example, the article w to be conveyed, and in this example, the height of the partition wall portion 14 is slightly lower than the depth of the main transport passage F at the starting end portion of the trough 7 in the transport direction of the article. It is set to a constant height over the entire length.

Next, the operation of transporting the article by the straight feeder 2 will be described.

For example, in the case of producing a small amount of packaged goods in a small bag, various parameters such as a target weight corresponding to the small amount, driving conditions of the distributed feeder 1 and the straight-ahead feeder 2 are set for the control device 16 for operation. To be started.

In this case, the amount of goods supplied from the distributed feeder 1 to the straight-ahead feeder 2 is reduced. In the trough 7 of the straight feeder 2, for example, as shown in FIG. 7A, the article w is distributed and guided by two rows of narrow transport passages f having a shallow cross section and a small cross section, and is transported without overlapping with each other, little by little. It is sent to the supply hopper 3.

Further, in the case of producing a large amount of packaged products in a large bag, various parameters such as a target weight corresponding to a large amount, driving conditions of the distributed feeder 1 and the straight-ahead feeder 2 are set for the control device 16 for operation. To be started.

In this case, the amount of goods supplied from the distributed feeder 1 to the straight-ahead feeder 2 increases. In the trough 7 of the straight feeder 2, for example, as shown in FIG. 7B, the article w is transported in a wide, large cross-sectional area in the inverted trapezoidal main transport passage F, which overlaps higher than the partition wall portion 14. ..

As described above, according to the present embodiment, when a small amount of the article w is transported by the trough 7 of the straight feeder 2, the width of the bottom surface is narrow and shallow, and therefore, the small amount is conveyed by the narrow transport passage f having a small cross section. In the case of transporting a large amount of articles w, the width of the bottom surface is wide and deep beyond the height of the partition wall portion 14 forming the narrow transport passage f, and therefore, A large amount of articles w can be transported by the main transport passage F having a large cross section.

Therefore, it is possible to deal with both the case of transporting a small amount of articles and the case of transporting a large amount of articles with one type of trough 7, and as in the conventional case, it is V-shaped or substantially V. It is not necessary to prepare a trough having a character-shaped cross-sectional shape and a trough having an inverted trapezoidal cross-sectional shape having a wide bottom surface in advance, and to replace the trough depending on the amount of goods to be transported.

As a result, it is possible to reduce the cost required for trough replacement and management.

[Other Embodiments]
The present invention can also be carried out in the following forms.

(1) As shown in FIG. 8, the top of the partition wall portion 14 may be curved. Also, the top may be flat.

(2) As shown in FIG. 9, even if the width of the partition wall portion 14 is increased toward the lower side in the transport direction of the article and the width of the bottom surface of the narrow transport passage f is narrower toward the lower side in the transport direction. Good.

(3) By narrowing the width of the bottom surface of the main transport passage F toward the lower side in the transport direction and making the width of the partition wall portion 14 constant over the entire length in the transport direction, the width of the bottom surface of the narrow transport passage f can be set in the transport direction. It can be made narrower toward the lower side.

(4) On the starting end side in the transport direction, the height of the partition wall portion 14 may be lowered toward the upper side in the transport direction.

1 Distributed feeder 2 Straight feeder 3 Supply hopper 4 Weighing hopper 7 Trough 7a Bottom plate 7b, 7c Side plate 14 Partition F Main transport passage f Narrow transport passage w Goods

Claims (6)

A trough for a straight-ahead feeder that carries articles on it and vibrates
A main transport passage formed by a bottom plate portion and a pair of opposite side plate portions erected from both sides of the bottom plate portion, and
At the middle portion of the bottom surface of the main transport passage in the width direction orthogonal to the transport direction of the article, a partition wall portion is provided so as to project along the transport direction to partition the main transport passage into a plurality of narrow transport passages. Prepare,
The cross-sectional shape of the partition wall portion is chevron, and the depth of the narrow transport passage defined by the height of the partition wall portion is shallower than the depth of the main transport passage.
A trough for straight feeders that features that. The partition wall portion is projected from the central portion in the width direction, and the narrow transport passage is partitioned on both sides of the partition wall portion in the width direction.
The trough for a straight-ahead feeder according to claim 1. The partition wall is projected over the entire length of the main transport passage.
The trough for a straight feeder according to claim 2. The width of the main transport passage and the width of the narrow transport passage are constant over the entire length in the transport direction.
The trough for a straight feeder according to claim 2 or 3. The width of the partition wall on the bottom surface of the main transport passage is approximately one-third of the total width of the bottom surface of the main transport passage.
The trough for a straight-ahead feeder according to any one of claims 2 to 4. To the dispersion feeder that conveys the supplied article to the peripheral portion, a plurality of straight-forward feeders that are arranged around the dispersion feeder and vibrate and convey the article supplied by the dispersion feeder to the outside, and each of the straight-ahead feeders. A plurality of supply hoppers provided corresponding to each and temporarily holding and discharging the article from the straight feeder, and a plurality of supply hoppers provided corresponding to each of the supply hoppers and temporarily holding and discharging the article discharged from the supply hopper. A combination scale provided with a plurality of weighing hoppers for measuring the weight of an article, and performing a combination calculation based on the weighing value of the article measured by the weighing hopper.
The plurality of straight-ahead feeders include the trough according to any one of claims 1 to 5.
A combination scale characterized by that.

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