JPH019779Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a vibrating feeder that applies vibration to a trough-like body into which articles are fed and supplies the articles from the trough-like body to, for example, a weighing device, and particularly relates to the structure of the trough-like body.

In the above-mentioned vibrating feeder, it was necessary to adjust the flow rate depending on, for example, the required input amount to the weighing machine. Therefore, a gutter-like body as shown in FIGS. 1 to 3 was sometimes used. That is, this trough-like body has a bottom part 1 formed in a rectangular shape, and one side wall part 2 is formed over the entire one side edge of the bottom part 1, and from the article supply side end of the other side edge. The other side wall portion 3 is formed halfway. A protruding edge portion 4 is formed on the other side edge of the bottom portion 1 where the side wall portion 2 is not formed, that is, the article delivery side portion, and a flow rate adjusting member 5 is mounted on this protruding edge portion 4. ing. This flow rate adjustment member 5 is
An adjustment wall portion 6 facing the side wall portion 2 is provided on one side edge of the bottom portion 7. Two elongated holes 8 are bored in parallel in the bottom surface portion 7, and the projecting edge portion 4 is attached to the protruding edge portion 4 by bolts 9 inserted into these elongated holes 8, respectively. By changing the insertion positions of these bolts 9 into the elongated holes 8, the distance between the side wall portion 2 and the adjustment wall portion 6 is changed to adjust the flow rate. Note that 10 is a nut screwed onto the bolt 9, and 11 is a member for coupling this gutter-like body to a vibration source. When using such a gutter-like body to input articles into a weighing machine, for example, the amount of input varies widely, especially when the required input amount is small. it is,
This is because, in order to prevent articles from getting stuck in the gap between the side wall 2 and the adjustment wall 6, this gap cannot be made smaller than a specific dimension determined by the shape and properties of the article. In addition, the gap between the side wall 3 and the adjustment member 5 and the gap between the bottom part 1 and the adjustment member 5 are easily clogged with articles, making it unsuitable for conveying food products and limiting the scope of application. Furthermore, bolts 9 and nuts 10 are required, and these tend to fall off due to vibrations, which can easily cause failures.

In addition to this, there is also a method described in Japanese Utility Model Publication No. 19624, but it similarly requires an adjustment member, has a complicated structure, and has both narrow plates installed vertically, so that the article cannot There is also the problem of getting stuck as the process progresses.

Furthermore, there is also a gutter-like body 30 as shown in FIG. This is disclosed in Japanese Patent Publication No. 54-20754, and has a sloped part 32 on the article loading side that slopes toward the unloading side and has a reduced width. An elongated bottom part 34 is provided from the lower end toward the delivery side, and a slope part 32,
Side slope portions 36, 36 are provided along both sides of the elongated bottom portion 34, which slope toward the center. Of course, a vibration source is provided on the lower surface of this trough-like body. However, although this gutter-like body is suitable for transporting relatively small amounts of light and long items, when transporting items that tend to roll, such as solids or granules, if the items are loaded from the input side, the vibration source may vibrate. Since the articles slide on the slope part 32 even when the vibration source is not in use, even after the vibration source is stopped, the articles that have slid on the slope part 32 enter the elongated bottom part 34 one after another, and the articles on the elongated bottom part 34 reach the delivery side. There was a problem in that the precision of the extruded and quantitative cutting was poor, and the amount of articles fed from this trough-like body varied. Further, when a large amount of articles are thrown into the input side of the slope section 32, since the width of the groove in the elongated bottom section 34 is narrow, they tend to overflow from the trough-like body, resulting in a problem that sufficient capacity is not achieved.

This invention provides a gutter-like body for a vibrating feeder that can transport from large to small volumes without significantly changing the dispersion of the input amount even when transporting articles that tend to roll, and that is less likely to break down. The purpose is to

Therefore, this invention is formed in a symmetrical shape with the axis of symmetry along the conveyance direction of the article, and
a horizontal bottom portion having an approximately isosceles triangular shape that gradually narrows in width from the proximal end side toward the distal end side along the conveying direction, and becomes approximately one point on the distal end side; 2, which are connected from the base end to the tip on both sides of the bottom surface, are inclined diagonally downward toward the horizontal bottom surface, and are widened toward the tip.
and side wall portions provided on both outer sides of the two slope portions, located on both sides of the horizontal bottom portion, and projecting upward, respectively.

With this configuration, when vibration is applied to the gutter-like body, the articles supplied to the proximal end side of the horizontal bottom portion gradually advance along the conveyance direction. Eventually, some of the articles will rest on the slope, but especially if the amount is small, the slope of the slope will push them toward the center, and they will gather on the axis at the tip. This is because both sloped portions have an upward slope toward the conveyance direction of the article and a downward slope toward the central portion in a direction perpendicular to the conveyance direction. Since the tip of the bottom surface portion is formed so as to form approximately one point, a substantially constant amount is added to a weighing machine or the like. When the vibration of the trough-like body is stopped, since the bottom surface is horizontal and the slanted surface has the above-mentioned upward slope, the articles hardly flow into the weighing machine, etc., and the accuracy of quantitative cutting is improved.
Therefore, the variation in the amount put into the weighing machine etc. is almost constant. Moreover, unlike conventional ones, since no adjustment member is used, articles do not get stuck between the gutter-like body and the adjustment member, and the range of application can be expanded. Furthermore, since no bolts or nuts are used, no breakdowns occur.

This invention will be explained in detail below based on one embodiment shown in FIGS. 4 to 6. In FIG. 4, reference numeral 12 denotes a bottom portion, which is a flat plate having an elongated isosceles triangular planar shape. Therefore, the bottom surface portion 12 has a line-symmetrical shape with the central axis 14 as an axis of symmetry, and the width becomes narrower toward the article conveyance direction 16. This bottom portion 12 is arranged horizontally.

Reference numerals 18 and 18 denote slope portions, which are provided on both oblique sides of the bottom portion 12. These slope portions 18, 18 are
The planar shape is a congruent right triangle, and each oblique side is located on both oblique sides of the bottom part 12 and is arranged so as to face diagonally downward with respect to the bottom part 12 side. Therefore, both slope portions 18,
The width of 18 becomes wider toward the conveyance direction 16, and forms a gentle upward slope toward the conveyance direction.
An axis of symmetry 14 perpendicular to the conveying direction 16
It has a downward slope towards .

Reference numerals 20 and 20 denote side wall portions necessary for large-capacity conveyance, which are provided at both side edges of the slope portions 18 and 18, respectively, and the interval between the side wall portions 20 and 20 is as follows.
It becomes slightly wider towards the top.

22 is a member for connecting such a trough-like body to a known vibration source (not shown). The vibration source includes a leaf spring coupled to the member 22 and an electromagnetic force that attracts and repels the leaf spring. In addition,
25 is a member for preventing the articles supplied to the bottom part 12 from falling backward (to the side opposite to the conveyance direction).

When vibration is applied from a vibration source to the trough-like body constructed in this way, the trough-like body vibrates in the direction shown by arrow 24 in FIG. As a result, the small amount of articles fed from the left end side in FIG. 4 travels along the arrow 16 while vibrating on the horizontal bottom surface 12. Eventually,
A small amount of the article rests on the inclined surfaces 18, 18, but because of the inclination, it is gathered onto the central axis 14, and is placed in the center of the right end in FIG. 4, that is, on the bottom surface 12.
Articles are supplied to a weighing machine, etc. from the tip of the weighing machine. If we control the state in which the articles are being supplied at predetermined time intervals, that is, if we apply a constant vibration for a predetermined time and then stop, then the articles are always supplied in a constant amount. I will add an explanation on this point. When the article passes through the gutter-like body, it is supplied to the left end, and as the article advances, it passes through both slopes 18,
18 is biased in the direction of the center axis 14 by inclination in the direction of the center axis 14. These gathered articles move in the conveyance direction 16 due to vibration, but both slopes 18 and 18
has an upward slope, so the side wall portions 20, 20
They are not scattered to the sides and are conveyed almost on the central axis 14. Therefore, even if there is some variation in the condition of the articles supplied to the left end of the trough-like body, the articles are aligned as they advance and are uniform when they exit from the right end, that is, the tip of the bottom surface 12. It becomes a flow. Since the bottom portion 12 is horizontal and the slope portions 18, 18 have an upward slope toward the conveying direction 16, when the vibration stops, near the tip of the bottom portion 12, both slope portions 18, 18 are raised. The articles at the tip of the bottom part 12 are prevented from falling into a weighing machine or the like. Therefore, it has good sharpness and very good quantitative performance.

Moreover, when a large amount of articles are supplied to the left end side of the bottom surface section 12, the articles are transferred toward the tip side of the bottom surface section 12 according to the vibrations. As in the case of a small quantity, the articles are brought to the center of the bottom part 12 by the upward slope of the slope parts 18, 18, but since the articles are in a large quantity, the conveyance height of the articles reaches the middle of the side wall part 20 of the trough-like body. Sometimes it can be reached. It moves along the conveyance direction 16 on the bottom surface part 12, slope parts 18, 18, and side wall parts 20, 20. The article that has reached the right end is placed on the slope section 1.
Because of the upward slope of 8 and 18, it is not supplied in pieces, but in almost constant amounts. It is supplied to a weighing machine or the like from the tip of the bottom part 12 and the right end of the slope parts 18, 18. Then, when the vibration stops, due to the upward slope of the slope parts 18, 18, the slope parts 18, 18,
Since the articles on the top 18 are more concentrated, the articles do not fall into the weighing machine, etc., and the quantitative performance becomes very good.

As described above, in the gutter-like body according to this invention, since the articles are brought to the center by the inclined surfaces 18, 18, no adjustment member is required, unlike the conventional one. Therefore, articles do not get stuck between the adjustment member and the gutter-like body, which is sanitary, and can be applied to foods, etc., expanding the range of applications. Moreover, since there is no need for bolts or nuts to fix the adjustment member,
No failure will occur due to these falling off. Furthermore, because the slope parts 18, 18 always move toward the center, and the bottom part 12 is horizontal, and its tip is almost a single point, when the vibration is stopped, even when there is a large amount of goods, only a small amount Even when the product is in use, it does not flow into the weighing machine, etc., and a certain amount is reliably added.

In the above embodiment, the distance between the side wall portions 20, 20 is widened upward, but it is not necessarily necessary to widen it. In addition, although the fall prevention member 25 was provided,
In some cases it may not be necessary.

[Brief explanation of drawings]

Fig. 1 is a plan view of a conventional gutter-like body for a vibrating feeder, Fig. 2 is a front view of a conventional gutter-like body for a vibrating feeder, and Fig. 3 is a right side view of a conventional gutter-like body for a vibrating feeder. Fig. 4 is a plan view of one embodiment of the gutter-like body for a vibrating feeder according to this invention, Fig. 5 is a front view of the same embodiment, Fig. 6 is a right side view of the same embodiment, and Fig. 7 is another conventional one. FIG. DESCRIPTION OF SYMBOLS 12... Bottom surface part, 14... Axis line, 16... Conveying direction, 18... Slope part, 20... Side wall part.

Claims (1)

[Claims for Utility Model Registration] The product is formed in a symmetrical shape with the axis along the conveyance direction of the article as the axis of symmetry, and the width gradually increases from the base end side to the distal end side along the conveyance direction. a horizontal bottom portion forming an approximately isosceles triangular shape that is narrowed to almost one point on the distal end side, and connected from the base end to the distal end on both sides of the horizontal bottom portion, respectively; two sloped parts that are inclined diagonally downward toward the horizontal bottom part and whose widths become wider toward the tip side; and both outer sides of the two sloped parts that are located across the horizontal bottom part. A gutter-like body for a vibrating feeder, comprising side wall portions each of which is provided so as to protrude upward.