JP2019035601A - Trough, supply feeder and weighing device - Google Patents

Abstract

The present invention provides a trough and the like suitable for transporting flat articles in small amounts.
At least a first bottom surface 17c that is in an inclined state and an article that is provided at one end of the first bottom surface 17c and that is inclined by the first bottom surface 17c, the inclination of the article is changed over the first bottom surface 17c. And the first side wall 17a is steeper than the slope at the first side wall 17a, and as the article rides on the first side wall 17a from the first bottom surface 17c, the slope of the article becomes steeper than when it is on the first bottom surface 17c Gradually approach the standing posture.
[Selection] Figure 5

Description

  The present invention relates to a trough, a supply feeder including the trough, and more particularly, a trough for conveying articles suitable for supplying articles such as foods and confectionery to the weighing apparatus little by little. The present invention relates to a feeder feeder and a weighing device.

  A combination weigher, which is a weighing device that performs combination weighing, generally supplies articles from a supply device that supplies articles to a conical central portion of a dispersion feeder, and the dispersion feeder includes a plurality of linear devices installed in a circle around the circumference. Articles are conveyed to the feeder, and the plurality of linear feeders vibrate and convey the articles to a plurality of supply hoppers. The plurality of supply hoppers temporarily hold the articles and supply the articles to the plurality of weighing hoppers disposed below the articles. In each weighing hopper, the weight of the supplied articles is measured by the weight sensor, and the weighing is performed. By calculating the combination based on the value, the combination of the weighing hoppers whose total weighing value matches or is closest to the target combination weight is selected, and the selected weighing hopper is discharged to the combination, and the collective chute is used. Into the packaging machine.

  In such a combination weigher, for example, as described in Patent Document 1, a so-called mix weighing is performed in which two different kinds of articles are mixed in a predetermined amount and weighed so that the total weight becomes a predetermined weight. May do.

JP 2012-225831 A

  In Patent Document 1, in order to perform two types of mix measurement, a plurality of linear feeders arranged in a circle are divided into semicircles, that is, a group of linear feeders located in one semicircle and the other semicircle. The linear feeder group is divided into linear feeder groups, and each type of article is distributed and supplied to each linear feeder group.

  In such mix weighing, there are many varieties of articles to be mixed, and there is a small amount of articles to be mixed, that is, a so-called multi-variety small quantity application.

  In order to reduce the quantity of articles to be mixed, it is necessary to reduce the quantity of articles supplied from the linear feeder to the weighing hopper via the supply hopper.

  However, flat articles, such as rice crackers and biscuits, are conveyed in a posture with the flat surface facing up and down, that is, in a lying down position, when they are vibrated and conveyed by a linear feeder. A plurality of articles, for example, about 3 to 5 articles are transported in an overlapping manner and supplied to the supply hopper, and it is difficult to supply a small amount of articles.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a trough suitable for transporting a flat article by a small amount, a supply feeder including the trough, and a weighing device.

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

  (1) The present invention is a trough of a vibration feeder that vibrates and conveys an article, wherein the article is provided at least at a first bottom surface in an inclined state and at one end of the first bottom surface, and is inclined by the first bottom surface. And the first side wall that makes the inclination of the article steeper than the inclination on the first bottom surface.

  According to the trough of the present invention, when an article, for example, a flat article is supplied to the trough, first, the flat surface is overlaid on the first bottom surface in a lying posture with the flat surface facing substantially up and down, and the conveying direction. The posture changes along the inclination of the first bottom surface while being conveyed to the lower side.

  Then, as the article having the posture along the inclination of the first bottom surface is conveyed by vibration, the article sequentially climbs onto the first side wall at the end of the first bottom surface, and the posture of the article is changed by the inclination of the first side wall. 1 It becomes steeper than the slope on the bottom. Moreover, the large overlap of articles is loosened by receiving the vibration conveying force.

  As a result, the article is conveyed on the first bottom surface, and sequentially climbs onto the first side wall, and the inclined state of the article approaches the vertical posture from the lying posture. At this time, since the large overlap of the articles is loosened by receiving the vibration conveying force, the posture of the articles can be brought close to the vertical state in a state where the articles are not overlapped greatly, such as one or two sheets.

  (2) In a preferred embodiment of the trough of the present invention, the first side wall is inclined upward from one end of the first bottom surface.

  According to this embodiment, since the first side wall is inclined upward from one end of the first bottom surface, the article conveyed on the first bottom surface and in a posture along the inclination of the first bottom surface is the first side wall. Step over the first side wall over the upper end of the bottom surface. Since the first side wall is inclined upward from one end of the first bottom surface, as the article rides on the first side wall, the first side wall approaches a state closer to vertical.

  (3) In a preferred embodiment of the trough of the present invention, the first side wall is formed so that the area of the inclined surface increases as it goes from the upper side to the lower side in the transport direction of the article. Has been.

  According to this embodiment, the inclined surface of the first side wall becomes larger as it goes in the transport direction, and therefore, as the conveyance of the article proceeds, the climbing of the article inclined at the first bottom surface on the first side wall sequentially. growing. The first side wall can make the inclination of the article steeper than that of the first bottom surface, and gradually approaches a vertical posture as the article rides on the first side wall from the first bottom surface.

  (4) In a preferred embodiment of the trough of the present invention, the trough includes a first bottom surface, a first side wall, and a second side wall provided along the other side of the first bottom surface. The second side wall forms a conveyance path for conveying the article, and the first bottom surface has a width that is narrower toward the lower side in the article conveyance direction, and from the first side wall to the second side wall. The first bottom surface, the first side wall, and the second side wall form an alignment region in which the articles are aligned while being conveyed.

  According to the trough of this embodiment, when an article, for example, a flat article is supplied to the alignment region, first, the flat surface is vibrated and overlapped on the bottom surface in a lying posture with the flat surface facing substantially up and down. While being conveyed to the lower side, the second side wall is shifted along the inclination of the first bottom surface, and some articles are conveyed while being abutted and guided by the second side wall.

  As the width of the bottom surface, that is, the width of the conveyance path becomes narrower, the other end of the article whose one end is in contact with and guided by the second side wall rides on the first side wall that is inclined so as to expand upward. As the conveyance proceeds, the climb to the inclined first side wall increases, and the article gradually rises and is aligned in the inclined standing posture.

  Since the width is narrow at the end of the narrowed conveyance path, the number of articles can be reduced, and even if the articles in the inclined standing posture are overlapped, the overlap is in an aligned state restricted to a small number. It is possible to discharge the articles arranged in the inclined standing posture.

  (5) In a preferred embodiment of the trough of the present invention, the width of the first bottom surface at the start end in the conveyance direction of the article is larger than the outer dimension of the article, and the width of the first bottom surface at the end in the conveyance direction. The dimensions are smaller than the external dimensions of the article.

  According to this embodiment, since the width dimension of the first bottom surface at the starting end in the conveyance direction of the article is larger than the outer dimension of the article, the flat article is maintained in a lying posture with the flat surface substantially up and down. However, since the width of the first bottom surface is smaller than the outer dimension of the article at the end in the conveyance direction of the article in which the width of the first bottom surface is gradually reduced, the flat article should maintain the lying posture. However, the posture gradually shifts to the end in the transport direction.

  (6) In one embodiment of the trough of the present invention, the receiving area has a receiving area for receiving the article to be supplied and transporting it to the aligning area on the upper side in the conveying direction of the article. Comprises a third and a fourth side wall connected to the first and second side walls of the alignment region, and a second bottom surface continuous to the first bottom surface, and the second bottom surface and the third and third side of the receiving region. The four side walls constitute a carry-in passage for carrying the article, and the second bottom surface is inclined downward from the third side wall toward the fourth side wall.

  According to this embodiment, the articles supplied to the receiving area on the upper side in the conveying direction of the articles in the alignment area are conveyed to the lower side in the conveying direction by receiving the vibration conveying force. At this time, a part of the article conveyed to the lower side in the conveying direction is shifted toward the fourth side wall along the inclination of the second bottom surface. Also, during vibration conveyance, large overlap of articles is loosened to some extent and sent to the next alignment area.

  (7) In another embodiment of the trough of the present invention, the trough has an unloading area for receiving and unloading the articles from the alignment area on the lower side of the alignment area in the conveying direction of the articles, The fifth and sixth side walls that are continuous with the first and second side walls of the alignment region, and the third bottom surface that is continuous with the first bottom surface, and the fifth side wall of the carry-out region is inclined upward. The slope is steep compared to the slope of the upward expansion of the first side wall of the alignment region.

  According to this embodiment, the flat article aligned in the inclined standing posture in the alignment region moves to the carry-out region, the lower end is guided to the sixth side wall, and the upper portion is leaned against the fifth side wall having a steep inclination. The conveyed articles are conveyed in an inclined standing posture that is more upright than the alignment region, and are unloaded from the end of the unloading region.

  (8) In one embodiment of the trough of the present invention, the width of the third bottom surface of the carry-out region is narrower than the width of the first bottom surface of the alignment region.

  According to this embodiment, since the width of the third bottom surface of the carry-out area, that is, the width of the conveyance path is narrower than the width of the conveyance path of the alignment area, the number of articles to be conveyed is reduced compared to the alignment area. In addition, the posture of the article can be set to a more upright posture.

  (9) In still another embodiment of the trough of the present invention, the height dimension of the fifth side wall of the carry-out area is smaller than the outer dimension of the article.

  According to this embodiment, since the height dimension of the fifth side wall of the carry-out area is smaller than the outer dimension of the article, the flat article with the inclined standing posture leaning against the fifth side wall is supported at one point at the lower end. On the other hand, the upper part of the flat surface stands up in a state of being linearly received along the conveying direction at the upper end side of the fifth side wall. Therefore, the height dimension of the fifth side wall is larger than the outer dimension of the article, and the tilted standing posture is more stable than the case of standing upright with two-point support of the upper end and the lower end of the article. It is transported and carried out while maintaining a stable tilted upright posture without wobbling.

  (10) The supply feeder of the present invention uses the vibration feeder provided with the trough according to any one of (1) to (9) as an upper vibration feeder, and the first trough of the upper vibration feeder. The upper side vibration feeder includes a side wall as the upper side first side wall, and a lower side vibration feeder disposed on the lower side of the upper side vibration feeder in the conveying direction of the article, and the trough of the lower side vibration feeder is The trough of the lower vibration feeder is disposed at a position lower than the trough of the upper vibration feeder, and the trough of the lower vibration feeder includes a lower side first side wall provided along one side of the lower hand side bottom surface. A lower-side second side wall provided along the other side of the lower-side bottom surface, and carrying the article by the lower-side bottom surface and the lower-side first and second side walls of the lower-side vibration feeder. Passage is configured, the corresponding upper side first side wall, the downstream side first side wall of the trough of the upper side vibrating feeder is inclined upward divergence.

  According to the supply feeder of the present invention, the article that is aligned and carried in the tilted upright posture by the upper vibration feeder is dropped and supplied to the lower vibration feeder with a drop, and the flat article overlaps in the thickness direction, It is loosened by the drop impact. Also, since the article dropped and supplied to the lower vibration feeder is in a substantially upright posture, it is received by being dropped from the direction of high rigidity to the lower vibration feeder below, and is not easily damaged by a drop impact. It will be a thing.

  (11) In another embodiment of the supply feeder of the present invention, the trough of the lower vibration feeder has a first region on the upper side and a second region on the lower side in the conveyance direction of the article, Each of the lower side first and second side walls is formed across the first region and the second region, and the inclination of the upper side of the lower side first side wall in the second region is the first region. It is steeper than the slope of the upward expansion of the lower side first side wall.

  According to this embodiment, the slope of the upper spread of the lower first side wall in the second area on the lower side in the transport direction is more than the slope of the upper spread of the lower first side wall in the first area on the upper side in the transport direction. Since it is steep, the article can be supplied in a more upright posture than the first region.

  (12) In still another embodiment of the supply feeder of the present invention, a height dimension of the lower side first and second side walls in the first area is larger than an outer dimension of the article, and the height in the second area is The height dimension of the lower side first and second side walls is smaller than the outer dimension of the article.

  According to this embodiment, in the first region for receiving the article discharged from the upper vibration feeder, the height of the lower first and second side walls is larger than the outer dimension of the article, and a deep conveyance path is formed. Therefore, the articles dropped and supplied in the tilted standing posture will not jump out of the trough even if they jump up due to the drop impact.

  In addition, the article received in the tilted standing posture in the first region moves to the second region while maintaining the tilted standing posture, and the height of the lower side first and second side walls in the second region. Since the dimension is smaller than the outer dimension of the article, a flat article with an inclined standing posture leaning on the lower first side wall is supported at one point at the lower end, whereas the upper part of the flat surface is on the lower side. It stands up in a state of being linearly received along the conveying direction at the upper end side of the first side wall. Therefore, the height of the lower first side wall is larger than the outer dimension of the article, and the tilted standing posture of the article is more stable than the case where the article is tilted and raised by two-point support of the upper and lower ends of the article. It is transported while maintaining a stable standing posture without wobbling in the width direction.

  (13) The weighing device according to the present invention includes a supply hopper that holds and discharges the supplied articles, and a weighing hopper that holds the articles discharged from the supply hopper and measures the weight thereof in series up and down. And a plurality of supply feeders for supplying articles to the plurality of measurement units, wherein at least a part of the plurality of supply feeders is any one of (10) to (12). The supply feeder according to Item 1.

  According to the weighing device of the present invention, it becomes possible to supply a small amount of a flat article with a part of a plurality of supply feeders, and weighing including the flat article can be accurately performed.

  As described above, according to the trough or supply feeder of the present invention, flat articles can be smoothly oscillated and conveyed little by little without overlapping vertically.

  Further, by incorporating these into a weighing device, weighing including a flat article can be accurately performed.

FIG. 1 is a front view of a weighing device according to an embodiment of the present invention in which the supply unit on the front side is removed. FIG. 2 is a side view of the weighing device. FIG. 3 is a side view of the weighing device in which the supply unit is moved apart. FIG. 4 is a plan view of the weighing device in which some of the supply units are moved apart. FIG. 5 is a perspective view of the trough of the supply feeder according to the embodiment of the present invention. FIG. 6 is a side view of the supply feeder of FIG. FIG. 7 is a plan view of the trough of the supply feeder of FIG. FIG. 8 is a front view of the trough as viewed from the conveyance end side of the supply feeder of FIG. FIG. 9 is a longitudinal front view in the receiving area of the trough of the upper vibration feeder. FIG. 10 is a longitudinal front view in the alignment region in the trough of the upper vibration feeder. FIG. 11 is a longitudinal front view of the trough of the upper vibration feeder in the carry-out area. FIG. 12 is a longitudinal front view of the trough of the lower vibration feeder in the first region. FIG. 13 is a longitudinal front view of the trough of the lower vibration feeder in the second region. FIG. 14 is a side view showing the weighing unit and the rejection mechanism. FIG. 15 is a partially cutaway side view of the reject operating state. FIG. 16 is a side view showing a storage hopper position switching structure. FIG. 17 is a control block diagram of the weighing device.

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

  FIG. 1 is a front view showing a state in which the supply unit 4 on the near side of the weighing device according to one embodiment of the present invention is removed, FIG. 2 is a side view of the weighing device, and FIG. FIG. 4 is a plan view of the weighing device in which some of the supply units 4 are moved away from each other.

  The weighing device according to this embodiment is for weighing various kinds of goods such as various foods and confectionery, for example, 10 kinds of articles in combination by a predetermined small amount. This weighing device is installed on a floor 2 on the upper floor where an operator W can go up and down, and is used for a packaging line in which weighed articles are put into a packaging machine (not shown) installed on the lower floor and packed in a bag. The

  In order to facilitate understanding of the structure, in the following description, the horizontal direction in FIG. 1, the front / back direction in FIG. 2 and FIG. 3, and the vertical direction in FIG. The front and back directions in FIG. 1, the horizontal direction in FIGS. 2 and 3, and the left and right direction in FIG. 4 are referred to as front and rear directions.

  As shown in FIGS. 2 to 4, a center base body 1 is fixedly arranged on the floor surface 2 via a support frame (not shown) at the center in the front-rear direction of the weighing device.

  On each of the front side (left side in FIGS. 2 to 4) and the rear side (right side in FIGS. 2 to 4) of the center base body 1, a plurality of measuring units 3 arranged in a line on the left and right are arranged. ing. In this example, as shown in FIG. 1 and FIG. 4, each of the 14 units of measuring units 3 is arranged in a row, and the measuring units 3 of 28 units in total are arranged in two rows. Note that the number of stations constituting the plurality of stations is arbitrary, and may be a number according to the number of varieties of articles to be mixed.

  Weighing is performed on the front side (left side in FIGS. 2 to 4) of the weighing unit 3 group on the front side and on the rear side (right side in FIGS. 2 to 4) on the rear side. A supply unit 4 that supplies various types of articles to the upper part of each weighing unit 3 arranged in a straight line is disposed in close proximity to the weighing unit group 3.

  Each series of weighing units 3 includes a supply hopper 5 that temporarily holds and discharges articles conveyed from the supply unit 4, a weighing hopper 6 that holds and measures articles discharged from the supply hopper 5, It has a structure in which memory hoppers 7 holding the weighed articles discharged from the weighing hoppers 6 are arranged vertically. The hoppers 5, 6, and 7 of the weighing unit 3 are detachably attached to the center base body 1 in the same manner as in the past.

  Although not shown in the drawings, a gate driving unit that opens and closes a discharge gate of the supply hopper 5, the weighing hopper 6, and the memory hopper 7, and a weight sensor described later for detecting the weight of an article supplied to the weighing hopper 6. And the like are housed and supported by the center substrate 1. The center base 1 and each supply unit 4 are connected by a cable or the like (not shown).

  Each weighing unit 3 includes the memory hopper 7 as described above, and can increase the number of hoppers (effective hoppers) that can participate in the combination calculation.

  In this embodiment, as shown in FIG. 1, each of the front and rear weighing units 3 in a row of 14 stations is divided into four partial stations adjacent to each other in the left-right direction. Is configured in triplicate.

  Below the weighing hopper 6 and the memory hopper 7 in each partial series, a first set for collecting a plurality of weighing hoppers 6 selected by a combination calculation so as to have a predetermined weight or articles discharged from the memory hopper 7 A chute 8 is provided.

  Below each first collective chute 8 corresponding to each partial train, a first gate 9 for opening and closing the discharge port of each first collective chute 8 is provided, and articles collected by each first collective chute 8 Can be temporarily received and discharged. Further, below the plurality of first gates 9, a single second collective chute 10 that slides down and collects the articles discharged from the first collective chutes 8 and collects them under the center of the weighing unit 3 group, and a second A second gate 11 that opens and closes the central outlet of the collective chute 10 is provided. Articles of all varieties weighed and collected by the front and rear weighing unit groups 3 are collected at one central location of the second collecting chute 10 and temporarily received and held by the second gate 11. 2 Open the gate 11 and discharge to the lower packaging machine. The second gate 11 is controlled to be opened based on a discharge request command from the packaging machine side.

  One supply unit 4 corresponds to each of two partial stations of an outer partial station in the left-right direction and an inner partial station adjacent thereto, and each partial station is configured by four stations and three stations. Therefore, an article is supplied to the weighing units 3 for seven stations by one supply unit 4. Therefore, two supply units 4 in total, two in front of one group of weighing units 3 on the front side and two in the rear of one group of weighing units 3 on the rear side, are arranged in parallel on the left and right. ing.

  The supply unit 4 includes a storage hopper 13 that accommodates articles and a supply feeder 14 that vibrates and conveys articles fed from the lower end of each storage hopper 13 toward the weighing unit 3 at the upper part of the frame 12. Has been.

  Each supply feeder 14 is composed of an upper vibration feeder 15 and a lower vibration feeder 16 which are arranged in tandem in a step-down manner along the article conveyance direction. The upper and lower vibration feeders 15 and 16 are composed of troughs 17 and 18 for carrying articles and conveying them along a predetermined path, and excitation mechanisms 19 and 20 for individually driving these vibrations. . By configuring the supply feeder 14 with the two vibration feeders 15 and 16 as described above, the conveyance distance for vibrating and conveying the articles can be increased, and the articles can be evenly supplied in small amounts during the period. Suitable for weighing small varieties.

  Further, since the vibration strength (amplitude) can be set for each of the vibration feeders 15 and 16, an appropriate vibration strength can be set according to the type of article.

  The articles loaded and supplied from the storage hopper 13 to the upper vibration feeder 15 are loosened while being conveyed by vibration, transferred to the lower vibration feeder 16, and conveyed by the lower vibration feeder 16, and are transferred in small amounts by a small amount. It is fed into the supply hopper 5. Further, when vibrating and feeding by the supply feeder 14, the lump of articles is easily loosened by an appropriate drop impact at the step portions of the upper and lower vibration feeders 15 and 16 formed in the conveyance path.

  Above each supply feeder 14, an article detection sensor 21 for detecting the quantity or bulk of the article near the end (conveyance direction end) of the upper vibration feeder 15 by, for example, ultrasonic waves is provided.

  When a control device described later receives detection by the article detection sensor 21 and determines that the amount or bulk of the article at the end of the vibration feeder 15 is less than a certain level, the vibration control mechanism 19 is continuously driven and supplied from the storage hopper 13. The conveyed article is conveyed toward the end of the vibration feeder 15. Then, when the amount or bulk of the terminal article reaches a certain level or more, the control device stops the vibration mechanism 19. At this time, since the vibration excitation mechanism 20 is driven, vibration is transmitted to the upper vibration feeder 15, so that the article at the end of the vibration feeder 15 can be conveyed toward the vibration feeder 16.

  Alternatively, when the amount or bulk of the article at the end of the vibration feeder 15 exceeds a certain level, the control device sequentially weakens the vibration of the vibration mechanism 19 and the article at the end is conveyed to the lower vibration feeder 16. You may stop at the timing.

  By repeating the above operation, the control device drives the vibration mechanism 19 intermittently.

  On the other hand, with respect to the vibration mechanism 20, the control device continuously drives the articles on the lower vibration feeder 16 until the amount or bulk in the supply hopper 5 becomes constant. When the amount or bulk in the supply hopper 5 becomes constant, the control device stops the vibration mechanism 20, stops the conveyance of the article to the supply hopper 5, opens and closes the supply hopper 5, Articles are supplied to the weighing hopper 6. By repeating the above operation, the control device drives the excitation mechanism 20 intermittently.

  Although it is mainly due to the configuration of the supply feeder 14 (s) that the articles can be supplied to the weighing unit 3 little by little, the vibration strength of the vibration exciting mechanisms 19 and 20 is preliminarily the vibration strength suitable for the small amount supply. Is set.

  The weighing device according to this embodiment mixes and measures flat and thin articles, for example, various kinds of articles including rice crackers and biscuits. Most of the feeder feeders 14 are intended to carry small articles such as small confectionery and nuts, and the troughs 17 and 18 of the vibratory feeders 15 and 16 have a cross-sectional shape such as an inverted trapezoid or U It is shaped like a letter-shaped bowl. Further, some of the supply feeders 14 (s) are supply feeders according to the embodiment of the present invention, and target articles that are flat and easy to overlap vertically, such as rice crackers.

  In the supply feeder 14 (s) of this embodiment, the trough 17 of the upper vibration feeder 15 as the upper vibration feeder on the upper side in the conveyance direction of the article and the lower stage as the lower vibration feeder on the lower side in the conveyance direction. The trough 18 of the vibration feeder 16 is configured as follows.

  5 is a perspective view of the troughs 17 and 18 of the supply feeder 14 (s) according to the embodiment of the present invention, FIG. 6 is a side view of the supply feeder 14 (s) of FIG. 5, and FIG. 5 is a plan view of troughs 17 and 18 of a supply feeder 14 (s) of FIG. FIG. 8 is a front view of the troughs 17 and 18 as viewed from the conveyance end side of the supply feeder 14 (s).

  The trough 17 of the upper vibration feeder 15 as the upper-side vibration feeder includes a receiving area A for receiving the articles sent from the storage hopper 13, an alignment area B for aligning and aligning the posture while conveying the received articles, and In this case, the aligned articles are divided into unloading areas C for guiding the aligned articles to the lower side in the conveying direction while maintaining a predetermined posture.

  The receiving region A has left and right third and fourth side walls 17d, 17e, a second bottom surface 17f, and a front end wall 17g, and is formed in a shallow rectangular box shape that is opened on the lower side in the article conveyance direction. Has been. The second bottom surface 17f and the third and fourth side walls 17d and 17e constitute an article carry-in passage.

  The width dimension of the second bottom surface 17f defined by the third side wall 17d provided along one side of the second bottom surface 17f and the fourth side wall 17e provided along the other side of the second bottom surface 17f is: The outer dimension of the flat article, for example, the outer diameter (diameter) is set to be sufficiently larger than the round rice cracker having a diameter of about 40 mm, for example, about 100 mm.

  The flat article is not limited to a circle but may be a polygon, and the outer dimension of the article in that case is the maximum dimension of the outer shape.

  The second bottom surface 17f of the receiving area A is inclined downward from the third side wall 17d toward the fourth side wall 17e.

  The alignment region B includes the third and fourth side walls 17d and 17e of the receiving region A, and the first and second side walls 17a and 17b and the first bottom surface 17c connected to the second bottom surface 17f. The first bottom surface 17c extending along the conveying direction of the article is in an inclined state, and as shown in FIG. 8, for example, at the same angle as the first bottom surface 17f in the receiving area A, the first side wall 17a to the second side wall. It slopes down toward 17b. As shown in FIG. 7, the first bottom surface 17 c is formed in a substantially triangular shape whose planar shape is tapered toward the lower side in the transport direction. The first bottom surface 17c only needs to be in an inclined state, and the planar shape does not necessarily have to be tapered toward the lower side in the transport direction.

  The first bottom surface 17c and the first and second side walls 17a and 17b of the alignment region B constitute an article conveyance path.

  The first bottom surface 17c of the alignment region B is slightly lower than the second bottom surface 17f of the receiving region A, for example, by several millimeters, and the second bottom surface 17f of the receiving region A and the first bottom surface 17c of the alignment region B are. Are connected by a connection bottom surface 17h that gently descends and slopes toward the lower side in the conveyance direction of the article.

  The first side wall 17a along one side of the first bottom surface 17c in the alignment region B is provided so as to incline upward, whereas the second side wall 17b along the other side of the first bottom surface 17c is provided with this. Like the fourth side wall 17e of the receiving area A that is connected to the vertical side, it is erected vertically.

  Here, “providing the side wall to be inclined to“ upwardly spread ”” means that a side wall, for example, one end of the bottom surface, for example, the first bottom surface 17c, is directed in the direction opposite to the first bottom surface 17c. It means that the first side wall 17c is inclined. In other words, when the first bottom surface 17c is used as a reference, the side wall is provided at an angle (obtuse angle) larger than the vertical direction. In simple terms, the side wall is not in the direction of closing the bottom surface, but is provided so as to be inclined so as to gradually expand upward as viewed from the bottom surface.

  The carry-out area C includes a fifth side wall 17i that is refracted and connected to the first side wall 17a of the alignment area B, a sixth side wall 17j that linearly extends the vertical second side wall 17b in the alignment area B, and A space having a third bottom surface 17k extending from the end of the first bottom surface 17c, for example, about 10 mm, is provided. The third bottom surface 17k and the fifth and sixth side walls 17i and 17j constitute an article conveyance path. The fifth side wall 17i is provided to be inclined upward like the first side wall 17a of the alignment region B.

  Further, the trough 18 of the lower vibration feeder 16 as the lower vibration feeder is configured as a straight bowl having an inverted trapezoidal shape with a small vertical cross section as a whole, and is carried out from the upper vibration feeder 15. Receive incoming goods.

 The trough 18 is divided into a first region D on the upper side in the transport direction and a second region E on the lower side in the transport direction in which the received article is transported and discharged while maintaining a constant inclined standing posture.

  The first region D of the trough 18 includes left and right lower side first and second side walls 18a and 18b, horizontal lower side bottom surface 18c having a constant small width, for example, a width of about several millimeters, and the rear of the conveyance path. A rear end wall 18d for closing the end is provided. The lower-side bottom surface 18c and the lower-side first and second side walls 18a and 18b constitute an article conveyance path.

  In the state where the supply feeder 14 (s) is assembled, for example, the outer dimension of the article w (the maximum dimension of the article; for example) between the terminal discharge height of the upper vibration feeder 15 and the receiving height of the lower vibration feeder 16 In the case of a circular article, it is set such that a larger drop than that of the article in the flat state is generated.

  The lower-side first and second side walls 18a and 18b of the first region D are erected at a height slightly larger than the outer shape of the article w, and the lower-side first and second side walls 18a and 18b are rearward in the transport direction. It extends further higher and is arranged so that the end of the trough 17 of the upper vibration feeder 15 enters between the side wall extending portions 18a ′ and 18b ′.

  The lower side first and second side walls 18a and 18b correspond to the fifth and sixth side walls 17i and 17j of the carry-out area C in the trough 17 of the upper vibration feeder. The lower side first side wall 18a is inclined and erected at a steep angle, and the lower side second side wall 18b is erected vertically, for example.

  Further, in the second region E of the trough 18, the lower first side wall 18e refracted and connected to the lower first side wall 18a in the first region D, and the lower second side wall 18b in the first region D in the transport direction. A small width (at least smaller than the first and second bottom surfaces) obtained by linearly extending the lower second side wall 18f linearly extending and the lower bottom surface 18c of the first region D in the conveying direction with the same width. ) Is provided with a horizontal lower side bottom surface 18g. The lower-side bottom surface 18g and the lower-side first and second side walls 18e and 18f constitute a conveyance path for conveying articles.

  The lower side first and second side walls 18e, 18f of the second region E are erected at a height slightly smaller than the outer shape of the article.

  The lower-side first side wall 18a of the first region D and the lower-side first side wall 18e of the second region E are erected at a steep angle so as to expand upward, and the lower-side first side of the second region E The side wall 18e is erected with a tighter inclination angle than the lower first side wall 18a of the first region D.

  Lower side first side walls 18a and 18e of the trough 18 of the lower vibration feeder 16 are from the first side wall 17a of the alignment region B as the upper side first side wall of the trough 17 of the upper vibration feeder 15 as the upper vibration feeder 15. It is also inclined at a steep angle.

  The supply feeder 14 (s) intended for flat articles is configured as described above.

  Next, the function will be described with reference to FIGS. 9 to 13 schematically show typical transport postures of the article w in order to facilitate understanding of the function description.

  9 is a vertical front view of the trough 17 of the upper vibration feeder 15 in the receiving area A, FIG. 10 is a vertical front view of the alignment area B of the trough 17 of the upper vibration feeder 15, and FIG. It is a vertical front view in the carrying-out area | region C in the trough 17 of the vibration feeder 15 of. 12 is a longitudinal front view of the trough 18 in the first region D of the lower vibration feeder 16, and FIG. 13 is a longitudinal front view of the second region E in the lower vibration feeder 16.

  An article w such as a flat article discharged from the lower end outlet of the storage hopper 13, for example, a flat and thin round rice cracker (a round rice cracker having an outer diameter of about 40 mm and a thickness of about 1 mm) is first of all an upper vibration feeder 15. The trough 17 is dropped and supplied over the entire width of the receiving area A. As shown in FIG. 9, a part of the articles w in the receiving area A is conveyed while receiving a vibration conveyance force and being in contact with and guided by the third side wall 17 d toward the lower side in the conveyance direction. Further, another part of the article w is shifted toward the fourth side wall 17e along the inclination of the second bottom surface 17f, and is conveyed while being in contact with and guided by the fourth side wall 17e. Moreover, the large overlap of the articles | goods w is loosened by receiving a vibration conveyance force.

  When the article w passes through the connection bottom surface 17h and moves to the alignment region B, the first bottom surface 17c is inclined downward toward the second side wall 17b. The posture changes along the inclination, receives the transporting and transporting force, and sequentially rides on the first side wall 17a, becomes a posture having a steeper inclination than the first bottom surface 17c, and approaches the standing state.

  In addition, some other articles are conveyed while being guided toward the second side wall 17f by the inclination of the first bottom surface 17c. In addition, when passing through the connection bottom surface 17h that is inclined downward toward the conveying direction, the article w in a lying posture with the flat surface facing up and down is shaken up and down, and an overlapping loosening action is brought about.

  As shown in FIG. 5, the alignment area B gradually narrows as shown in FIG. 5. Therefore, when the second half of the alignment area B where the conveyance path width becomes smaller than the outer shape of the article w is reached, as shown in FIG. One end of the article w that has already ridden on the inclined surface of the first side wall 17a hits the second side wall 17b by gravity, and the article w gradually rises with the inner corners of the first bottom surface 17c and the second side wall 17b as fulcrums. Close to.

  Furthermore, as shown in FIGS. 5 and 7, the first side wall 17 a is formed such that the area of the inclined surface increases from the upstream side in the transport direction toward the downstream side in the transport direction. For this reason, as the conveyance of the article w conveyed from the upstream side proceeds, the climbing of the article inclined at the first bottom surface 17c onto the inclined surface of the first side wall 17a is sequentially increased. Since the inclination of the first side wall 17a is steeper than that of the first bottom surface 17c, as the article w climbs from the first bottom surface 17c to the first side wall 17a, the inclination of the article is more than when the article is on the first bottom surface 17c. It becomes sudden and gradually approaches a standing posture.

  On the other hand, as shown in FIG. 10, the other end of the article w abutted and guided on the second side wall 17b rides on the first side wall 17e inclined upward, and the first bottom surface 17c and the second side wall The article w is gradually raised while using the inner corner with 17b as a fulcrum.

  Since the conveyance path width of the alignment region B gradually decreases along the conveyance direction, the articles w are smoothly conveyed without clogging.

  Since the conveyance path width is sufficiently narrow at the end portion of the alignment area B, even if the standing articles w overlap, the next unloading area C is arranged in an aligned state restricted to a small number of 3 or 4 sheets. Transition.

  As shown in FIG. 11, the article w reaching the carry-out area C is conveyed to the lower side while maintaining the inclined standing posture leaning on the fifth side wall 17i that is inclined to stand up at a steep angle. Discharged from its end.

  At this time, the article w leaning against the fifth side wall 17i in the carry-out area C is in a state higher than the height of the fifth side wall 17i, and its lower end is supported at one point, whereas the upper part of the flat surface is The upright side of the fifth side wall 17i stands up in a state of being linearly received along the conveying direction. Accordingly, the standing posture is more stable than the case where the article w is lower than the height of the fifth side wall 17i and is supported by two-point support of the upper end and the lower end, and a predetermined inclined standing posture without wobbling from side to side. Is stably transported and carried out.

  As shown in FIG. 12, the article w discharged from the end of the trough 17 of the upper vibration feeder 15 falls to the front part of the trough 18 in the lower vibration feeder 16 while keeping the tilted upright posture slightly inclined in a certain direction. Supplied. Since the article w discharged in the inclined standing posture is dropped and supplied between the higher side wall extending portions 18a ′ and 18b ′ in the lower side first and second side walls 18a and 18b higher than the outer shape, the article w is supplied. Even if it jumps up due to a drop impact, it will not jump out of the trough 18.

  Further, even if the articles w are overlapped and discharged by about 3 or 4 sheets, the overlap is easily loosened due to the drop impact when being received by the front part of the trough 18. At this time, the lower end of the outer periphery of the flat article w is received by the lower side bottom surface 18c of the trough 18, so that the flat article w is received in a lying posture by dropping in the plane direction. Damage is less likely to occur.

  The article w that has been dropped and supplied to the first region D of the trough 18 is oscillated and conveyed in a tilted upright posture leaning against the lower first side wall 18a that is inclined to spread upward, and then transferred to the second region E.

  As shown in FIG. 13, the articles w reaching the second region E are continuously guided to the lower first side wall 18e that is inclined at a low and steep angle, and the number of articles is reduced while maintaining a constant inclined standing posture. Are transported approximately one by one.

  At this time, since the lower first and second side walls 18e, 18f of the second region E are lower than the article w, the lower end of the article w leaning against the lower first side wall 18e is supported at one point. On the other hand, the upper part of the flat surface stands on the upper end side of the lower first side wall 18e in a state of being linearly received along the transport direction. Therefore, the standing side posture is stable and the tilted standing posture is not staggered as compared with the case where the lower first side wall 18e is higher than the article w and the article w stands up with two-point support of the upper end and the lower end. Is conveyed stably.

  The weighing device of this embodiment is provided with the following structure.

  As shown in FIGS. 2 and 3, wheels 22 are provided at the lower four corners of the frame 12 in the supply unit 4, and rails 23 for engaging and guiding the wheels 22 are provided on the floor 2 in the front-rear direction. Laid along. Each supply unit 4 can move toward and away along the rail 23 in a direction (front-rear direction) orthogonal to the group of measuring units 3 in the column direction.

  That is, as shown in FIGS. 3 and 4, the supply unit 4 is moved largely away from the supply position for supplying the articles to the weighing unit 3, and the operator is placed between the supply unit 4 and the weighing unit 3. By opening the space for storing, it is possible to easily perform maintenance such as cleaning and inspection / maintenance by attaching / detaching each member in the hoppers 5, 6, 7 of the measuring unit 3 and the supply unit 4. .

  When the supply unit 4 at the maintenance position is moved closer to the measuring unit 3 group after cleaning, inspection and maintenance, etc., it is moved closer until the frame 12 comes into contact with the stopper 24 protruding near the rail 23. The terminal end of the supply feeder 14 is properly positioned with respect to the supply hopper 5. At the supply position thus positioned, the supply unit 4 is appropriately fixed by a lock means, and the weighing operation is started.

  In this embodiment, the front of the seven measuring units 3 can be opened by moving one supply unit 4 away from each other, and one supply unit 4 can be provided for each one measuring unit 3. Cleaning work and inspection and maintenance are easier than in the case of opposing deployment. If one supply unit 4 is arranged opposite to a group of measuring units 3 in a row (14 stations in this example), the weight of the supply unit 4 is large and the left and right are long, which is difficult to handle. It is desirable that a single supply unit 4 is disposed opposite to several measuring units 3 (seven in the embodiment).

  A supply feeder 14 that vibrates and conveys articles to the supply hopper 5 of the weighing unit 3 is provided on the frame 12 of the supply unit 4, while a weight sensor that detects the weight of the articles supplied to the weighing hopper 6 of the weighing unit 3 is provided. The weight sensor that detects the weight of the article and the supply feeder 14 that vibrates and conveys the article are provided in different casings 1 and 12, respectively. As a result, the dispersion feeder and the linear feeder that vibrate and convey the article to the supply hopper are provided in a general weighing device provided on the center base body that is the same casing as the weight sensor that detects the weight of the article supplied to the weighing hopper. Compared to the configuration, the weight sensor can reduce the influence of vibration received from the feeder.

  As shown in FIGS. 2 and 3, the frame 12 of the supply unit 4 is provided with a reject mechanism 25 for discharging an excessive amount of articles supplied to the weighing hopper 6.

  FIG. 14 is a side view showing the weighing unit 3 and the rejection mechanism 25.

  The lower end of the weighing hopper 6 is provided with an outer gate 6a and an inner gate 6b for discharge that can be opened and closed independently, and only the outer gate 6a is swung outward to open the weighed article. It is sent directly to the first collecting chute 8 below through the first delivery path (a), and only the inner gate 6b is rocked and opened inward, so that the weighed article is passed through the second delivery path (b). Then, it is sent to the memory hopper 7 and temporarily held.

  That is, the weighing hopper 6 can selectively discharge the held article in two different discharge directions, and the discharged article is a first delivery path (a) that is two paths, or It is sent to the first collecting chute 8 or the memory hopper 7 through the second delivery path (b).

  When the weight of an article supplied to the weighing hopper 6 is an excessive amount exceeding a predetermined weight range, the reject mechanism 25 for removing the excessive amount of the article moves the reject chute 26 forward and backward and horizontally. An air cylinder 27 serving as a drive mechanism is provided, and a collection container 28 for collecting articles thrown into the reject chute 26 is provided.

  The reject chute 26 is disposed facing the first delivery path (a) of the weighing hopper 6 from the outside. Normally, as shown in FIG. 14, the air cylinder 27 is shortened so that the reject chute 26 is retracted to the outside of the first delivery path (a), and the article accompanying the opening of the outer gate 6a of the weighing hopper 6 Is not prevented from being discharged to the first collecting chute 8.

  When the weight of the article weighed by the weighing hopper 6 exceeds the predetermined weight range, the air cylinder 27 is extended and the reject chute 26 is moved to the first delivery path (a ) Will be rejected. In this state, when the outer gate 6a is opened, an excessive amount of articles in the weighing hopper 6 are discharged to a cylindrical reject chute 26 having a charging port and a discharging port, and the excessive amount of articles is discharged to the collection container 28. It is collected by flowing down. When the collection is completed, the reject chute 26 returns to the original position retracted from the first delivery path (a), and the outer gate 6a of the weighing hopper 6 is closed to prepare for the supply of the next article. The collection container 28 is provided so that an excessive amount of articles can be collected for each type so as not to mix different types of articles. As a result, the collected articles can be efficiently re-weighed without waste.

  A guide member 29 made of a plate material is provided at the tip of the reject chute 26. The guide member 29 is located at a position facing the first delivery path (a) from the outside when the reject chute 26 is in a position retracted outward from the first delivery path (a). The gate 6a is opened to prevent the articles discharged to the outside from being scattered by the guide member 29, and the discharged articles are correctly guided to the first collecting chute 8.

  As shown in FIG. 1, the storage hopper 13 provided in the supply unit 4 is arranged at a relatively high position for the operator. It is configured to be able to move up and down by switching to a lower article supply position.

  The raising / lowering structure of this storage hopper 13 is shown by FIG. In this example, the storage hopper 13 provided with the article supply port 13b in the upper corner is vertically slid through the support bracket 31 provided in the frame 12 via the upper and lower elongated holes 32 and the two pins 33a and 33b, and It is supported inside and outside so as to be able to turn and rotate.

  That is, a bent hole portion branched in a bifurcated shape is formed in the upper portion of the long hole 32. When the storage hopper 13 is raised, the pins 33a and 33b are respectively supported by the end portions of the bent hole portion. As a result, the storage hopper 13 is stably held at the article supply position where the storage hopper 13 stands up against the starting end of the supply feeder 14. When the storage hopper 13 is rotated 90 degrees outward about the pin 33 a from this state and then pulled outward slightly, both the pins 33 a and 33 b are positioned at the straight portion of the upper and lower elongated holes 32. As a result, the storage hopper 13 in the posture rotated outward can be lowered in the same posture by the guidance of both the pins 33 a and 33 b and the upper and lower elongated holes 32.

  The lowering limit becomes the low article supply position, and the article supply to the article supply port 13b of the storage hopper 13 can be easily supplied and cleaned. In addition, an elastic damper 34 is installed between the storage hopper 13 and the lower portion of the support bracket 31 to provide an appropriate resistance to the rotation and lowering of the storage hopper 13 and assist the hopper lifting operation. Yes.

  Thus, after the storage hopper 13 is lowered and replenished easily at a low position, the storage hopper 13 can be set to a predetermined article supply position simply by lifting the storage hopper 13, for example, the storage hopper 13 fixed at a high position. The replenishment work becomes easier as compared with the case where the replenishment container or the like is lifted and replenished.

  FIG. 17 is a control block diagram of the weighing device according to this embodiment.

  The control device 41 that controls each unit is housed in, for example, the center base 1, and is connected to an operation setting display 42 that displays various settings such as operations on the weighing device, operation parameters, and measurement values. . The control device 41 is given a detection output of the article detection sensor 21 of the supply unit 4 and weight signals from the plurality of weight sensors 40 housed in the center base 1. The control device 41 controls the drive of the upper and lower vibration feeders 15 and 16 of the supply unit 4 and opens and closes the discharge gates of the hoppers 5, 6 and 7 and the first and second gates 9 and 11. To control.

  The control device 41 has a function as a calculation control unit 43 that discharges articles from the hoppers 6 and 7 selected as an appropriate combination by performing a combination calculation based on the weights of the articles in the weighing hopper 6 and the memory hopper 7. When the weight of the article supplied to the weighing hopper 6 is an excessive amount exceeding the predetermined weight range, the arithmetic control unit 43 controls the operation of the reject chute 26 to be moved out and in by the reject mechanism 25 as described above. To eliminate excessive quantities of goods.

  Note that the control device 41 does not necessarily need to be configured by a single control device, and may be configured by a plurality of control devices that perform distributed control in cooperation with each other. The center base 1 on the weighing unit 3 side and the supply unit 4 may be provided respectively.

  In this embodiment, a variety of goods, for example, 10 kinds of articles are mixed and weighed, and 28 weighing units 3 are preliminarily considered in consideration of the kind etc. A series is appropriately assigned for each, and the operation setting display 42 is operated to register the series for each type assigned to the control device 41. The corresponding varieties of articles are stored in the storage hopper 13 of the supply unit 4 corresponding to each series of the registered weighing units 3, and the operation is performed.

  The calculation control unit 43 of the control device 41 performs a combination calculation based on the weights of the articles of each type of the weighing hopper 6 of the weighing unit 3 and the memory hopper 7 respectively corresponding to the articles of each type. This combination calculation is not particularly limited, and a conventionally known combination weighing combination calculation may be performed. For example, the hoppers to be discharged are determined for nine types of articles from the first type to the ninth type, each within a predetermined weight range, and the weight added to the total weight of the nine types of articles is the lower limit of the target combination weight. From the hoppers of the proper amount combination, the hoppers of the above-mentioned nine kinds of articles and the selected hoppers of the tenth kind of articles are selected as the hoppers of the appropriate amount combination. The article is discharged and put into the packaging machine through the first collecting chute 8, the first gate 9, the second collecting chute 10, and the second gate 11.

  Thereby, a mixed article in which ten kinds of articles whose total weight falls within the allowable weight range is packaged by the packaging machine.

  As described above, according to the present embodiment, the upper vibration feeder 15 of the supply feeder 14 (s) vibrates the flat article w supplied to the receiving area A of the trough 17 to the alignment area B and the unloading area C. It can be aligned in a tilted upright posture that is gradually raised as it is conveyed, and the number of articles w can be reduced to about 3 or 4 and carried out to the trough 18 of the lower vibration feeder 16.

  In the trough 18 of the lower vibration feeder 16, the article w in the inclined standing posture carried out from the trough 17 of the upper vibration feeder 15 is received in the first region D, and a drop impact at that time causes the article w in the thickness direction. As the article w is loosened and conveyed and conveyed to the second region E by vibration, the article w is placed in a more upright inclined posture and the number of articles w is reduced and supplied to the supply hopper 5 approximately one by one. it can.

  In this way, the flat article can be gradually raised from the lying posture with the flat surface facing up and down to be aligned in the inclined standing posture, and the number of articles can be reduced to approximately one and supplied. Unlike a conventional example in which a simple article is conveyed in a lying posture, a plurality of flat articles are not supplied in an overlapping manner.

  Further, according to the present embodiment, a plurality of measuring units 3 each having a series of supply hoppers 5 and weighing hoppers 6 are arranged in a line so that the supply hoppers 5 are arranged in a straight line. Since the supply unit 4 for supplying the articles is disposed in close proximity so as to face a plurality of the weighing units 3, for example, as in the case where there are a wide variety of articles to be supplied to the supply hopper 5, the weighing units 3 When it is desired to increase the number of reams constituting a plurality of reams, the measuring units 3 and the supply units 4 arranged in a straight line may be added in a straight line. Unlike the conventional combination weigher in which a linear feeder and a plurality of hoppers are arranged in a circle, it is not necessary to increase the diameter of the dispersion feeder and expand the occupied space in all directions around the dispersion feeder. The door ones.

  In addition, a plurality of measuring units 3 are provided in two rows on both sides of the center base 1, and the supply units 4 respectively corresponding to the respective rows are arranged in close proximity to the plurality of measuring units 3, so that the same number of stations is provided. Compared with the configuration of only one column, the length in the column direction can be shortened to effectively use the plane space, and the weighing unit 3 and the supply unit 4 can be arranged in a concentrated manner.

[Other Embodiments]
(1) In the above embodiment, a part of the plurality of supply feeders 14 (s) corresponding to the plurality of weighing units 3 is a supply feeder suitable for transporting a flat article, and the flat article However, it is also possible to use a combination feeder that is suitable for transporting flat articles, and to combine and measure single-type articles. it can.

  (2) When combining and weighing articles of a single type, like the conventional combination weigher, suitable supply feeders 14 (s) for transporting flat articles are radially arranged around a conical dispersion feeder. It is also possible to supply articles to a group of weighing units arranged in a circle.

  (3) In the above embodiment, the supply feeder 14 (s) is constituted by the upper vibration feeder 15 and the lower vibration feeder 16. However, the length of the trough 17 of the upper vibration feeder 15, the conveyance path width, and the side wall. The inclination angle and the like may be changed as appropriate, and only the upper vibration feeder 15 may be used.

  (4) In the above embodiment, the trough 17 of the upper vibration feeder 15 includes the receiving area A and the unloading area C. For example, depending on the shape of the article to be conveyed, the length of the alignment area B, You may abbreviate | omit at least any one of the receiving area A and the carrying-out area | region C by changing suitably the conveyance path width | variety, the inclination angle of a side wall, etc.

3 Weighing unit 4 Feeding unit 5 Feeding hopper 6 Weighing hopper 14 Feeding feeder 15 Vibration feeder (upper side)
16 Vibrating feeder (lower side)
17 trough (upper vibration feeder)
17a First side wall of alignment region 17b Second side wall of alignment region 17c First bottom surface of alignment region 17d Third side wall of receiving region 17e Fourth side wall of receiving region 17f Second bottom surface of receiving region 17i Fifth side wall of unloading region 17j 6th side wall of unloading area 17k Third bottom surface of unloading area 18 Trough (lower vibration feeder)
18a Lower side first side wall 18b of the first region Lower side second side wall 18c of the first region 18c Lower side bottom surface of the first region 18e Lower side first side wall of the second region 18f Lower second side wall 18g of the second region Lower area bottom surface of two areas A Receiving area B Alignment area C Unloading area D First area E Second area w Article

Claims (13)

A trough of a vibration feeder that vibrates and conveys articles,
At least a first bottom surface in an inclined state and an article provided on one end of the first bottom surface and inclined by the first bottom surface, the inclination of the article is inclined on the first bottom surface. A first side wall that is steeper than
trough. The first side wall is inclined upward from one end of the first bottom surface,
The trough according to claim 1. The first side wall is formed such that the area of the inclined surface increases as it goes from the upper side in the conveyance direction of the article toward the lower side in the conveyance direction.
The trough according to claim 2. The first bottom surface, the first side wall, and a second side wall provided along the other side of the first bottom surface, and the article is conveyed by the first bottom surface and the first and second side walls. A transport passage is constructed,
The width of the first bottom surface is narrowed toward the lower side in the conveyance direction of the article, and the first bottom surface is inclined downward from the first side wall toward the second side wall,
The first bottom surface, the first and second side walls form an alignment region in which the articles are aligned while being conveyed.
The trough according to claim 2 or 3. The width dimension of the first bottom surface at the start end in the conveyance direction of the article is larger than the outer dimension of the article, and the width dimension of the first bottom surface at the terminal end in the conveyance direction is smaller than the outer dimension of the article.
The trough according to any one of claims 1 to 4. A receiving area for receiving the article to be supplied and conveying it to the alignment area on the upper side in the conveying direction of the article in the alignment area;
The receiving region includes third and fourth side walls that are continuous with the first and second side walls of the alignment region, and a second bottom surface that is continuous with the first bottom surface, and the second bottom surface and the second side of the receiving region. 3, the fourth side wall constitutes a carry-in passage for carrying in the article,
The second bottom surface is inclined downward from the third side wall toward the fourth side wall;
The trough according to claim 4. On the lower side of the alignment area in the conveyance direction of the article, a carry-out area for receiving and carrying out the article from the alignment area,
The carry-out region includes fifth and sixth side walls that are continuous with the first and second side walls of the alignment region, and a third bottom surface that is continuous with the first bottom surface,
The fifth side wall of the carry-out region is inclined upwardly, and the inclination is steeper than the inclination of the first side wall of the alignment region.
The trough according to claim 4 or 6. The width of the third bottom surface of the carry-out region is narrower than the width of the first bottom surface of the alignment region,
The trough according to claim 7. The height dimension of the fifth side wall of the carry-out area is smaller than the outer dimension of the article,
The trough according to claim 7 or 8. The vibration feeder provided with the trough according to any one of claims 1 to 9 is an upper vibration feeder, and the first side wall of the trough of the upper vibration feeder is an upper first side wall, An upper-side vibration feeder, and a lower-side vibration feeder disposed on the lower side of the upper-side vibration feeder in the conveyance direction of the article,
The trough of the lower vibration feeder is disposed at a position lower than the trough of the upper vibration feeder,
The trough of the lower vibration feeder includes a lower side bottom surface, a lower side first side wall provided along one side of the lower side bottom surface, and a lower side first side provided along the other side of the lower side bottom surface. Two side walls, and the lower side vibration feeder of the lower side vibration feeder and the lower side first and second side walls constitute a conveyance path for conveying the article,
The lower side first side wall corresponding to the upper side first side wall of the trough of the upper side vibration feeder is inclined upward.
Supply feeder. The trough of the lower vibration feeder has a first region on the upper side and a second region on the lower side in the conveyance direction of the article,
Each of the lower side first and second side walls is formed across the first region and the second region,
The slope of the upper spread of the lower first side wall in the second region is steeper than the slope of the upper spread of the lower first side wall in the first region.
The supply feeder according to claim 10. A height dimension of the lower side first and second side walls in the first area is larger than an outer dimension of the article, and a height dimension of the lower side first and second side walls in the second area is the article. Smaller than
The supply feeder according to claim 11. A plurality of series of weighing units having a supply hopper for holding and discharging supplied articles and a weighing hopper for holding and discharging the articles discharged from the supply hopper in series,
Provided with a plurality of supply feeders for supplying articles to these multiple measuring units,
At least a part of the plurality of supply feeders is the supply feeder according to any one of claims 10 to 12.
Weighing device.

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