JP2007279054A - Combination weighing-counting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To collect articles by one combination weighing fed into a collection chute, without generating speed difference, to be discharged in a lump state. <P>SOLUTION: In this combination weighing-counting device for combining a plurality of hoppers with weights or numbers of the articles fed into the respective hoppers to select a combination of articles brought within an allowance range, the collection chute for collecting the articles discharged from the hoppers to be discharged comprises an upper chute part and a lower chute part, the upper chute part has a linear sloped face A with an inclination angle θ1, the lower chute part has at least two inner walls B, C that are arranged vertically, The inner walls B, C are inclined linearly with inclination angles θ3, θ4 different each other, the inclination angles θ1, θ3, θ4 satisfies the relation θ4>θ3>θ1, both vertical ends of the inner walls B, C are positioned in the vicinity of a radial outer side of a parabola serving, as a route for natural falling-down of the articles, and the articles discharged from the upper chute part reaches thereby a discharge port, while drawing a parabolic line. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a combination weighing / counting device that selects a combination of articles within an allowable range by combining the weight or number of articles such as potato chips and candy.

  Conventionally, this type of combination weighing / counting device includes a plurality of hoppers for weighing articles and a funnel-shaped collective chute having a sliding surface inclined toward a discharge port at the lower end. Articles are put into each hopper and weighed individually, and the measured values are combined and calculated, and one piece of the combined weighing that has a weight or number within an allowable range is put into the collecting chute from the hopper. The articles thrown into the collective chute are sent to the discharge port while sliding on the sliding surface of the collective chute, discharged from the discharge port, and packed in a lower packaging machine (Japanese Patent Laid-Open No. Hei 8-193871). issue).

  By the way, in order to reduce costs, the packaging operation of articles is required to be as fast as possible. However, in the above apparatus, since the articles from the hopper are sent to the discharge port at the lower end while sliding on the sliding surface of the collective chute, a difference in the sliding speed of each article tends to occur due to frictional resistance with the sliding surface. . As a result, the articles for one combination weighing are sent to the discharge port in a long row, so that the time until all the articles pass through the discharge port becomes long. Thus, if the time until the article for one combination weighing passes through the discharge port becomes longer, the next timing for opening the hopper and the timing for sealing the opening of the packaging bag by the packaging machine are delayed. This is a factor that hinders the speeding up of weighing / counting work and packaging work.

  According to the present invention, articles for one combinational weighing put into a collecting chute are quickly sent to a discharge port in a lump state without causing a speed difference, and the lump-like items are collected from the discharge port all at once. It is an object of the present invention to provide a combination weighing / counting device that can be discharged to a higher speed for weighing / counting work.

  In order to achieve the above object, the present invention is a combined weighing / counting device that selects a combination of articles within an allowable range by combining a plurality of hoppers and the weight or number of articles put into each hopper. The upper chute portion of the collecting chute that collects the articles discharged from the hopper and discharges them from the lower discharge port collectively discharges the articles discharged from the hopper, and the discharged articles draw a parabola. The shape and the inclination angle are set so as to reach the discharge port.

  According to the above configuration, articles for one combination weighing from each hopper are thrown into the upper chute part of the collective chute, and a collective aggregate is formed from the discharge end of the upper chute part. It falls naturally while drawing a parabola toward the outlet. For this reason, the individual articles that have exited the upper chute portion of the collective chute are not in contact with other parts of the collective chute, that is, they are not subjected to much frictional resistance due to the collective chute, and quickly reach the discharge port in a lump state. To be collected. As a result, the timing for opening the next hopper can be advanced, and the weighing / counting operation can be speeded up.

  Moreover, in this invention, it is preferable to provide the partition member which prevents that the articles | goods discharged | emitted from the hopper spread | diffused in the circumferential direction of the gathering chute in the lower position of the hopper in the said upper stage chute | shoot part. In this way, even if it is an article such as a candy that is likely to bounce off when thrown into the upper chute from the hopper, for example, an article such as a candy, the article tends to spread in the circumferential direction on the upper chute. Be blocked. As a result, since the article reaches the discharge port in the shortest distance, it does not form a long line up and down but passes through the discharge port in a lump state, so that it is possible to further speed up the counting and weighing work. .

  Further, in the present invention, the collective chute has the upper chute portion and a lower chute portion disposed below the upper chute portion, and at least the lower chute portion of the both chute portions is a plurality of vertically disposed It has an inner wall surface, each inner wall surface is inclined in a straight line with different inclination angles, and both upper and lower ends are located on a parabola that is a natural fall path of the article or in the vicinity of its radially outer side. It is preferable. If it does in this way, since the inner wall surface of the at least lower chute part is formed with the linear inclined surface, it can be easily obtained by bending the plate material, and the manufacturing cost is also reduced.

  In one embodiment of the present invention, a radially outer outer wall of the hopper is inclined so that an angle formed with an inner bottom surface of the upper chute is small, and a gate for controlling discharge of articles in the hopper It is attached so as to be rotatable around a horizontal support axis located radially inside the hopper.

  Thus, by tilting the outer wall of the hopper in the radial direction so that the angle with respect to the inner bottom surface of the upper chute is small, the angle at which the article collides with the upper chute becomes shallow, and the impact force is small. Therefore, even an easily damaged article such as potato chips can be smoothly put into the upper chute portion from the hopper without causing damage. Further, since the gate pivots around a horizontal support axis provided on the radially inner side of the hopper, even when the outer wall of the hopper is inclined as described above, the gate is between the hopper and the upper chute portion. Without providing a large space, the gate can be greatly opened in a state where both of them are brought close to each other.

  Thus, by arranging the hopper and the upper chute portion close to each other, the throwing distance of the article between them can be reduced, and the collision speed with respect to the upper chute of the article can be reduced. For this reason, the articles from the hopper are dropped onto the upper chute while suppressing damage, and the articles collide with the upper chute on the upper chute and are prevented from diffusing in the circumferential direction. Can be quickly sent to the outlet in a lump state. Furthermore, since the article is guided by the hopper until just before being put into the upper chute portion, the falling motion of the article can be directed in a desired direction.

  Here, if the gate is supported by the support axis on the radially outer side of the hopper with the two close to each other, when the gate opens, the tip contacts the inner bottom surface of the upper chute portion, so the gate is largely opened. Can not do it. On the other hand, if the gate is supported by the support axis on the radially inner side of the hopper, the gate is opened in the direction opposite to the inner bottom surface of the upper chute, so that the gate is greatly opened even when the two are close to each other. As a result, articles from the hopper can be dropped onto the upper chute portion all at once.

  In another embodiment of the present invention, the hopper is provided with a gate for controlling discharge of the article in the hopper, and the article diffuses in the circumferential direction when the gate opens below the gate closing position in the hopper. The 1st partition part which prevents this is extended in the hopper side wall. In yet another embodiment, the gate is directly provided with a second partition that prevents the article from diffusing in the circumferential direction when it is opened.

  In this way, when the article in the hopper is dropped onto the upper chute part by opening the gate, diffusion of the article in the circumferential direction is suppressed by the first or second partition part. Thereby, each article | item is sent to an upper stage chute | shoot part rapidly in a lump state.

  The present invention will be understood more clearly from the following description of preferred embodiments with reference to the accompanying drawings. However, the embodiments and drawings are for illustration and description only and should not be used to define the scope of the present invention. The scope of the present invention is defined by the appended claims (claims). In the accompanying drawings, the same component symbols in a plurality of drawings indicate the same parts.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
In the combination weighing / counting device of FIG. 1, a support case 2 is attached to a base 1 installed on a floor via a plurality of support legs 10, and an exciter 31 is provided at the upper center of the support case 2. The provided flat conical vibratory dispersion feeder 3 is arranged. Below the outer periphery of the dispersion feeder 3, a plurality of vibratory feeders 4 each provided with a vibrator 41 are arranged radially.

  A plurality of pool hoppers 5 respectively corresponding to the feeders 4 are arranged in a circular shape in the circumferential direction in the same horizontal plane below the tips of the feeders 4.

  The lower end of each pool hopper 5 is provided with a discharge port 51 for discharging the articles M accommodated therein, and the discharge port 51 is higher on the radially inner side and lower on the radially outer side. It is inclined like so. A first gate 52 for controlling the discharge of the article M by opening and closing the discharge port 51 is attached in an oblique direction. The first gate 52 is rotatably supported by a horizontal support shaft 53 located on the radially inner side of the pool hopper 5 via a support member 54. 55 is provided, and is operated by rotating this protrusion 55 via a plurality of operation arms 56, and is opened and closed within the range of the open position from the closed position indicated by the solid line to the substantially vertical position indicated by the phantom line.

  Further, a plurality of weighing hoppers 6 provided with weighing parts 60 having load cells are provided on the outer periphery of the support case 2 below the respective pool hoppers 5 so as to correspond to the respective pool hoppers 5 in the same horizontal plane. Are arranged in a circular shape in the circumferential direction.

  As in the case of the pool hopper 5, a discharge port 61 for discharging the articles M accommodated therein is provided at the lower end of each weighing hopper 6. The discharge port 61 has a radially inner side. It is high and is inclined so that the radially outward side is low, and is opened obliquely downward toward the radially inward side. The discharge port 61 is provided with a second gate 62 that opens and closes to control the discharge of the article M. The second gate 62 is rotatably supported by a horizontal support shaft 63 positioned on the radially inner side of the weighing hopper 6 via a support member 64, and the gate 62 has an operation bush. 65 is provided, and is operated by rotating this thruster 65 via a plurality of operation arms 66, and is opened and closed within the range of the open position from the closed position indicated by the solid line to the substantially vertical position indicated by the phantom line. The support case 2 accommodates a driving device for driving the first and second gates 52 and 62.

  Below the weighing hopper 6, there is provided a substantially funnel-shaped collecting chute 7 that collects the articles M discharged from the weighing hopper 6 and discharges the articles M from the lower discharge port 70. The collective chute 7 includes a reverse truncated cone-shaped upper chute portion 71 positioned directly below the weighing hopper 6 and a small lower chute portion 77 of the same shape and disposed below the upper chute portion 71.

  The upper chute 71 receives the article M discharged from the weighing hopper 6, slides downward along the inner bottom surface 71a as indicated by the arrow S, and is discharged from the discharge end 71b of the upper chute 71. The shape and the inclination angle are set such that the articles M are gathered together and fall naturally while drawing the parabola P and reach the discharge port 70 at the lower end. At this time, when the inner bottom surface 71a is formed as a linearly inclined surface and the inclination angle θ1 with respect to the horizontal plane is set to 48 to 53 °, for example, the combination weighing 1 supplied from the weighing hopper 6 to the upper chute portion 71 is performed. The batch of articles M reaches the discharge port 70 as a collection of short chunks up and down from the discharge end 71 b at the lower end of the upper chute 71.

  The outer wall 6a radially outward of the weighing hopper 6 is inclined so that the angle θ2 formed with the inner bottom surface 71a of the chute 71 becomes as small as possible in order to smoothly put the article M into the upper chute 71. Yes.

A plurality of partition members 72 that prevent the articles M to be discharged from diffusing in the circumferential direction are provided below the weighing hopper 6 in the upper chute portion 71. As shown in FIG. 2A, the upper chute portion 71 is formed by a plurality of divided bodies 73 divided in the circumferential direction, each divided body 73 is arranged in the circumferential direction, and the whole approximates a reverse truncated cone. It is in shape. The divided body 73 is formed of a fan-shaped plate member, and as shown in FIG. 2B, a plurality of hook-shaped protrusions are integrally formed on the plate member by bending the same, and the protrusions are divided into the partitions. The member 72 is used. The inner bottom surface 71a of the divided body 73 is also bent along a bending line 76 extending in the radial direction so that the line 76 protrudes radially outward, and guides the article M straightly downward along the radial direction. It is supposed to be. In the figure, reference numeral 74 denotes a support member that supports the divided body 73 by the outer surface and flanges 75 at both ends, and this support member 74 is supported by the support leg 10 via a mounting frame (not shown).
The partition member 72 may be formed as a separate member and attached to the upper chute portion 71.

  As shown in FIG. 1, the lower chute 77 is divided into two upper and lower parts, and the first and second divided bodies 78 and 79 are each formed of a plate material having a reverse truncated cone shape. Therefore, the first and second divided bodies 78 and 79 are inclined linearly in the vertical cross section including the central axis C of the collective chute 7 at the first and second inner wall surfaces 78 a and 79 a. Further, the inclination angles θ3 and θ4 of the inner wall surfaces 78a and 79a are different from each other, and the latter θ4 is set larger than the former θ3. Thus, the inner wall surfaces 78a and 79a are arranged so as to substantially follow the parabola P extending obliquely downward from the inner bottom surface 71a of the upper chute portion 71. That is, with respect to the parabola P, the lower end of each inner wall surface 78a, 79a is positioned on the parabola P, and the upper end is positioned near the radially outer side of the parabola P. The lower end portion 78b of the first divided body 78 is slightly overlapped in the vertical direction so as to be fitted inside the upper end portion 79u of the second divided body 79. In this way, the lower chute 77 can be easily obtained by a plurality of simple conical divided bodies 78 and 79.

For example, when the inclination angle θ1 with respect to the horizontal plane of the inner bottom surface 71a of the upper chute 71 is set to about 48 °, the inclination angle θ3 with respect to the horizontal plane of the inner wall surface 78a of the first divided body 78 is about 54 °, and The inclination angle θ4 of the inner wall surface 79a of the second divided body 79 with respect to the horizontal plane is set to about 66 °. With this setting, the article M that has exited the discharge end 71b of the upper chute 71 hardly comes into contact with the inner wall surfaces 78a and 79a of the divided bodies 78 and 79, that is, by the divided bodies 78 and 79. It falls naturally toward the discharge port 70 at the lower end while drawing a parabola P with almost no frictional resistance. The divided bodies 78 and 79 of the upper chute portion 71 and the lower chute portion 77 are supported by the main body frame 1 via a support member (not shown).
As in the case of the lower chute portion 77, the upper chute portion 71 may be formed of a plurality of upper and lower divided bodies.

  In the embodiment of FIG. 1, a feeding chute 8 is provided on the upper side of the dispersion feeder 3 via a plurality of support columns 81 and a support frame 82, and a conveyor conveyer 9 for supplying articles M to the feeding chute 8 on the upper side thereof. Is arranged. A discharge chute 11 is provided on the lower side of the lower chute 77, and a packaging machine 12 is disposed below the discharge chute 11. In the figure, 13 is a metal detector provided in the middle of the discharge chute 11 for detecting metal mixed in the article M. Reference numeral 14 denotes a support frame for the discharge chute 11.

Next, the operation of the combination weighing / counting device having the above configuration will be described.
First, the articles M conveyed by the conveyor 9 and introduced from the charging chute 8 are sent to the vibrating feeder 4 while being distributed in the circumferential direction by the vibrating dispersion feeder, and from here to each pool hopper 5, It is temporarily pooled here. Thereafter, the article M is discharged from the discharge port 51 of each pool hopper 5 by the opening operation of the first gate 52 and is put into each weighing hopper 6. Here, the weighing unit 60 including the load cell connected to the weighing hopper 6 measures the weight of the loaded article M. The weighing value in the weighing unit 60 is sent to a control device composed of a microcomputer (not shown), whereby the weighing hopper 6 in which the total weight (combination weight) or total number (combination number) of the articles M falls within the allowable range. A combination is selected. For example, the allowable range is set to a range in which the target value is a lower limit value and a value slightly larger than the target value is an allowable upper limit value.

  When the weighing hopper 6 is selected in combination, the second gate 62 provided in the weighing hopper 6 is opened by a control signal from the control device, and the article M for one combination weighing is transferred to the upper chute portion 71 of the collecting chute 7. Then, it slides downward along the inner bottom surface 71a in the direction of the arrow S, falls naturally along the parabola P from the discharge end 71b, and reaches the discharge port 70. At this time, since the inner wall surfaces 78a, 79a of the divided bodies 78, 79 of the lower chute 75 have a shape substantially along the polygonal line on the parabola P, the article M that has exited the discharge end 71b of the upper chute 71 is The parabola P is drawn as it is and reaches the discharge port 70 with almost no contact with the divided bodies 78 and 79. Therefore, since the difference in the sliding speed and the sliding time (discharge time) of the individual articles M due to the frictional resistance by the lower chute portion 77 is suppressed, the articles M are in a lump in the lower discharge port 70. Collected.

  In addition, since the upper chute portion 71 is formed with a plurality of partition members 72, the articles M thrown in from the weighing hopper 6 are scattered on the upper chute portion 71 and falling while spreading in the circumferential direction. This is blocked by the partition member 72. For this reason, even if the article M such as a candy is easily bounced back and splashed to both sides when being put into the upper chute portion 71, the scattering of the article M is suppressed by the partition member 72, and the article M As a result of reaching the discharge port 70 in the shortest distance, they are quickly gathered in a lump state without forming a long line up and down.

  Further, since the outer wall 6a radially outward of the weighing hopper 6 is inclined so as to reduce the angle θ2 formed with the inner bottom surface 71a of the upper chute 71, the article M which is easily damaged, such as potato chips, for example. Even so, it is smoothly dropped from the weighing hopper 6 onto the upper chute 71 without causing damage. Further, since the second gate 62 provided at the discharge port 61 of the weighing hopper 6 rotates around the horizontal support shaft 63 located on the radially inner side of the weighing hopper 6, the angle is set as described above. Even when θ2 is set to be small, a large space is not provided between the weighing hopper 6 and the upper chute portion 71 in order to open and close the second gate 62, and these two are placed close to each other, The second gate 62 can be greatly opened.

  That is, as shown in FIG. 1, even if both are arranged close to each other, the second gate 62 moves away from the inner bottom surface 71 a of the upper chute portion 71 around the support shaft 63 on the radially inner side of the weighing hopper 6. Therefore, the second gate 62 can be largely opened so as to be in the vertical posture shown by the phantom line in the figure without being obstructed by the inner bottom surface 71a. For this reason, the articles M are collectively dropped from the weighing hopper 6 to the upper chute portion 71.

  Further, by placing the weighing hopper 6 and the upper chute 71 close to each other, the dropping distance of the article M between them becomes small, and the collision speed with respect to the upper chute 71 of the article M becomes small. For this reason, the articles M are dropped from the weighing hopper 6 onto the upper chute portion 71 without being damaged, and the articles M are prevented from diffusing in the circumferential direction on the upper chute portion 71, and the individual articles M are lumped together. As a state, it can be quickly sent to the outlet 70.

  The articles M collected at the discharge port 70 are put together in a lump state and are quickly put into the lower packaging machine 12 from the discharge chute 11. As a result, the next timing of opening the weighing hopper 6 and the timing of sealing the opening of the packaging bag by the packaging machine 12 can be advanced, and the measurement / counting operation and the packaging operation can be speeded up.

  In addition, as shown in FIG. 3, you may form the lower stage chute | shoot part 77 by the integrated object which has the inner wall surface inclined in the some linear form up and down. In this case, if a plurality of conical bodies 78A and 79A are arranged one above the other and joined by welding, the manufacture becomes easy. Further, the lower chute 77 may not be a circular cone having a circular cross section, but may be a plurality of pyramids having a polygonal cross section arranged vertically.

  Next, in the second embodiment of FIG. 4, a first partition 66 that projects downward from the closing position indicated by the solid line of the second gate 62 is integrally extended on the weighing hopper 6. The first partition portion 66 is formed in a substantially U shape by a bottom wall 66a extending from the outer wall of the weighing hopper 6 and side walls 66b extending from both side walls 6b of the weighing hopper 6 and positioned on both sides of the bottom wall 66a. ing.

  Further, in the third embodiment shown in FIG. 5, the second partition portion 67 composed of two parallel side plates 67a located on the outer side of the weighing hopper 6 when the second gate 62 is closed is provided on both sides of the second gate 62. ing.

  4 and 5, when the second gate 62 is opened and the article M in the weighing hopper 6 is put into the upper chute portion 71 as indicated by a two-dot chain line, the diffusion of the article M in the circumferential direction is described above. It is suppressed by the first or second partition part 66, 67. As a result, the individual articles M from the weighing hopper 6 are quickly sent to the upper chute 71 in a lump state. The first partition 66 may be formed of two side plates without the bottom wall 66a, like the second partition 67.

  As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily consider various changes and modifications within the obvious scope by looking at the present specification. Accordingly, such changes and modifications are to be construed as within the scope of the invention as defined by the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic front view showing a combination weighing / counting device according to a first embodiment of the present invention with a part cut away. It is a top view which shows the upper stage chute | shoot part of the collection chute used for the apparatus. It is the II-II sectional view taken on the line of FIG. 2A. It is a modification of the lower chute part of the device. It is a partially cutaway side view of the weighing hopper and the upper stage chute part showing a second embodiment of the present invention. It is a side view in which a measuring hopper and an upper stage chute part showing a 3rd embodiment are notched partially.

Conventionally, this type of combination weighing / counting device includes a plurality of hoppers for weighing articles and a funnel-shaped collective chute having a sliding surface inclined toward a discharge port at the lower end. Articles are put into each hopper and weighed individually, and the measured values are combined and calculated, and one piece of the combined weighing that has a weight or number within an allowable range is put into the collecting chute from the hopper. The articles thrown into the collective chute are sent to the discharge port while sliding on the sliding surface of the collective chute, discharged from the discharge port, and then packed by a lower packaging machine (Patent Document 1).
JP-A-8-193871

In order to achieve the above object, the present invention is a combination weighing / counting device that selects a combination of articles within an allowable range by combining a plurality of hoppers and the weight or number of articles put into each hopper,
A collective chute that collects articles discharged from the hopper and discharges them from the discharge port at the lower end consists of an upper chute part and a lower chute part,
The upper chute part has a linear inclined surface A with an inclination angle θ1,
The lower chute portion has at least two inner wall surfaces B and C arranged vertically, and the inner wall surfaces B and C are inclined linearly with different inclination angles θ3 and θ4, respectively. ,
Each inclination angle has a relationship of θ4>θ3> θ1,
The upper and lower ends of the inner wall surfaces B and C are located in the vicinity of the radially outer side of the parabola that becomes the path of the natural fall of the article,
Articles discharged from the upper chute reach the discharge port while drawing a parabola .

Further, in the present invention, the collective chute has the upper chute portion and a lower chute portion disposed below the upper chute portion, and at least the lower chute portion of the both chute portions is a plurality of vertically disposed has an inner wall surface, each inner wall surfaces are inclined in a straight line with a different inclination angles from each other, and the upper and lower ends, positioned radially outward near the parabolic line which is a path of gravity of the article It is preferable. If it does in this way, since the inner wall surface of the at least lower chute part is formed with the linear inclined surface, it can be easily obtained by bending the plate material, and the manufacturing cost is also reduced.

In order to achieve the above object, the present invention is a combination weighing / counting device that selects a combination of articles within an allowable range by combining a plurality of hoppers and the weight or number of articles put into each hopper,
A path for collecting articles discharged from the hopper and discharging from the discharge port at the lower end is configured only from the wall surface of the collecting chute, and the collecting chute is composed of an upper chute part and a lower chute part,
The upper chute part has a linear inclined surface A with an inclination angle θ1,
The lower chute portion has two inner wall surfaces B and C which are arranged vertically, the inner wall surface B and C are different inclination angles θ3 each other is inclined linearly with a .theta.4,
Each inclination angle has a relationship of θ4>θ3> θ1,
The upper and lower ends of the inner wall surfaces B and C are located in the vicinity of the radially outer side of the parabola that becomes the path of the natural fall of the article,
Articles discharged from the upper chute part draw a parabola and reach the discharge port.

Claims (8)

A combination weighing / counting device for selecting a combination of articles within an allowable range by combining a plurality of hoppers and the weight or number of articles put into each hopper,
The upper chute part of the collecting chute that collects the articles discharged from the hopper and discharges them from the discharge port at the lower end discharges the articles discharged from the hopper together, and the discharged articles draw a parabola. A combination weighing / counting device set to have a shape and an inclination angle so as to reach the discharge port. 2. The combined weighing / counting device according to claim 1, wherein a partition member is provided at a position below the hopper in the upper chute portion to prevent articles discharged from the hopper from diffusing in the circumferential direction of the collective chute. 3. The combination weighing / counting device according to claim 2, wherein the partition member is formed integrally with the upper chute by bending. 2. The collective chute according to claim 1, wherein the collective chute includes the upper chute part and a lower chute part disposed below the upper chute part, and at least the lower chute part of the two chute parts is a plurality of inner parts arranged vertically. Each inner wall surface is linearly inclined with different inclination angles, and the upper and lower ends of each inner wall surface are on the parabola or the radially outer side of the natural fall path of the article. Combination weighing and counting device located in the vicinity. 5. The combination weighing / counting device according to claim 4, wherein the lower chute is divided into a plurality of upper and lower parts, and each divided body is formed of a plate material forming a part of a cone. 2. The hopper according to claim 1, wherein an outer wall radially outward of the hopper is inclined so that an angle formed with an inner bottom surface of the upper chute is small, and a gate for controlling discharge of an article in the hopper is a hopper A combination weighing and counting device that is pivotably mounted around a horizontal support axis located radially inside. 2. The hopper according to claim 1, wherein the hopper is provided with a gate for controlling discharge of the article in the hopper, and prevents the article from diffusing in the circumferential direction when the gate opens below the gate closing position in the hopper. A combination weighing / counting device in which the first partition portion extends on the hopper side wall. 2. The gate according to claim 1, wherein the hopper is provided with a gate for controlling discharge of the article in the hopper, and the gate is provided with a second partition portion for preventing the article from diffusing in the circumferential direction when the gate is opened. Combination weighing and counting device.

Images