JP2021050093A - Discharge chute and combined scale - Google Patents

Abstract

To provide a discharge chute that can restrict accumulation of articles and a combined scale.SOLUTION: A first chute 81 has a chute part 83 with a sliding face 83a that receives an article A and causes the article A to slide thereon. The sliding face 83a extends over one end 83X where the article A is supplied on the shute part 83, and over the other end 83y where the article A is discharged. When seen from an extending direction, at least a bottom part 84d curves, and the depth of a sliding area R defined by the sliding face 83a becomes deep toward the side of the other end 83y from the side of the one side 83X when seen from the extending direction.SELECTED DRAWING: Figure 2

Description

The present invention relates to a discharge chute and a combination weighing device.

In the combination weighing device, articles supplied from the outside (articles having a variation in the mass of a single substance such as agricultural products, marine products, processed foods, etc.) are temporarily stored in a plurality of weighing hoppers according to the mass of the articles. The weighing values are weighed in each weighing hopper, and articles are ejected from a plurality of weighing hoppers selected so that the total value of the weighing values becomes the target weighing value to the discharge chute (see, for example, Patent Document 1). The discharge chute discharges the article to, for example, a bag making / packaging machine.

Japanese Unexamined Patent Publication No. 2007-279554

The discharge chute is usually designed in shape according to the type of article. Specifically, the discharge chute is designed according to the thickness and length of the article. However, there are some articles in which the thickness and length of the articles are not always the same. In this case, when the article slides on the discharge chute, the article may be caught on the discharge chute depending on the orientation of the article. As a result, the article stays in the discharge chute, and the article is not discharged from the discharge chute.

One aspect of the present invention is to provide a discharge chute and a combination weighing device capable of suppressing the retention of articles.

The discharge chute according to one aspect of the present invention is a discharge chute that receives and discharges an article supplied from the outside, and has a chute portion having a sliding surface that receives the article and slides the article, and the sliding surface is In the chute portion, it extends over one end where the article is supplied and the other end where the article is discharged, and at least the bottom is curved when viewed from the extending direction, and when viewed from the extending direction. , The depth of the sliding region defined by the sliding surface becomes deeper from one end side to the other end side.

In the discharge chute according to one aspect of the present invention, the depth of the sliding region defined by the sliding surface becomes deeper from one end side to the other end side. As a result, in the discharge chute, when the article supplied from one end side slides toward the other end side, the sliding area becomes deeper, so that the article tends to lose its balance. When the article is elongated, the unbalanced article slides so that the length direction is along the extending direction of the sliding surface. Therefore, in the discharge chute, it is suppressed that the article is caught on the sliding surface. Further, in the discharge chute, since the bottom of the sliding surface is curved, it is difficult for an article to be caught on the sliding surface. Therefore, the discharge chute can suppress the retention of articles.

It should be noted that the depth of the sliding region becomes deeper from one end side to the other end side, it may be continuously (gradually) deepened from one end side to the other end side, or it may be gradually deepened. You may get deeper into. Further, when the depth of the sliding region becomes deeper from one end side to the other end side, it becomes deeper from one end side to the other end side at least a part between one end and the other end. I just need to be there.

In one embodiment, the depth of the gliding region defined by the gliding surface is the first straight line connecting the pair of top positions of the gliding surface and the lowest position of the bottom of the gliding surface when viewed from the extending direction. When a second straight line passing through and orthogonal to the first straight line is set, it may be the distance between the lowest position on the second straight line and the first straight line. In this configuration, the depth of the sliding region can be set to be deeper from one end side to the other end side.

In one embodiment, the gliding area is defined to include a first side surface and a second side surface, the first side surface being one end of the sliding surface on one end side of the sliding surface when viewed from the extending direction. Connected to the portion, the second side surface is connected to the other end of the sliding surface on one end side of the sliding surface when viewed from the extending direction, and the first side surface and the second side surface when viewed from the extending direction. The second side surface may be located outside the sliding surface. In this configuration, the first side surface and the second side surface can receive an article supplied from the outside. Therefore, in the discharge chute, the articles supplied from the outside can be more reliably collected on the sliding surface.

In one embodiment, the gliding area is defined to include a third side surface and a fourth side surface, the third side surface is connected to the first side surface, the fourth side surface is connected to the second side surface, and the extending direction. When viewed from the side, each of the third side surface and the fourth side surface may be located outside each of the first side surface and the second side surface. In this configuration, the third side surface and the fourth side surface allow articles supplied from the outside to be collected on the sliding surface.

In one embodiment, the bottom of the gliding surface may have the same curvature in the extending direction. In this configuration, if the depth of the sliding region is increased from one end side to the other end side, the article is more likely to lose its balance. Therefore, in the discharge chute, the retention of the article can be further suppressed. In addition to having the same value, the equivalent may mean a value including a measurement error or a slight difference in a preset range. That is, equality is a concept that includes not only cases of perfect equality but also cases of substantially equality.

The combination weighing device according to one aspect of the present invention includes a plurality of hoppers arranged so as to surround a center line parallel to the vertical direction and temporarily storing articles, and the above-mentioned discharge chute. One end of the chute portion is located below the hopper, and the other end portion is arranged so as to be closer to the center line than the one end portion.

The combination weighing device according to one aspect of the present invention includes the above discharge chute. The chute portion of the discharge chute is arranged so that one end is located below the hopper and the other end is closer to the center line than the one end. As a result, in the combination weighing device, the article discharged from the hopper slides from one end to the other end of the discharge chute. At this time, in the discharge chute, the depth of the sliding region defined by the sliding surface becomes deep, so that the article tends to lose its balance. Therefore, in the discharge chute, it is suppressed that the article is caught on the sliding surface. Therefore, in the combination weighing device, the retention of the article can be suppressed.

According to one aspect of the present invention, the retention of articles can be suppressed.

FIG. 1 is a configuration diagram of a combination weighing device of one embodiment. FIG. 2 is a perspective view of the discharge chute according to the first embodiment. FIG. 3 is a side view of the discharge chute shown in FIG. 4 (a) is a cross-sectional view taken along the line aa of FIG. 3, FIG. 4 (b) is a cross-sectional view taken along the line bb of FIG. 3, and FIG. 4 (c) is a cross-sectional view of FIG. It is sectional drawing along the cc line. FIG. 5 is a perspective view of the discharge chute according to the second embodiment. FIG. 6 is a side view of the discharge chute shown in FIG. 7 (a) is a cross-sectional view taken along the line aa of FIG. 6, FIG. 7 (b) is a cross-sectional view taken along the line bb of FIG. 6, and FIG. 7 (c) is a cross-sectional view of FIG. It is sectional drawing along the cc line.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements are designated by the same reference numerals, and duplicate description will be omitted.

[First Embodiment]
As shown in FIG. 1, the combination weighing device 1 includes a charging chute 2, a distributed feeder 3, a plurality of radiation feeders 4, a plurality of pool hoppers 5, a plurality of weighing hoppers (hoppers) 6, and a collective chute. 8, a timing hopper 9, a measuring unit 11, and a control unit 20 are provided. The combination weighing device 1 weighs the article A (articles having variations in the mass of individual substances such as agricultural products, marine products, processed foods, etc.) supplied by the conveyor 50 so as to reach the target weighing value, and is a bag-making and packaging machine. Supply to 60. The bag-making and packaging machine 60 forms the film into a bag having a predetermined capacity, and packs the article A that has been weighed and supplied by the combination weighing device 1.

The charging chute 2 is arranged below the transfer end 50a of the transfer conveyor 50. The charging chute 2 receives the article A that has been conveyed from the outside by the transfer conveyor 50 and has fallen from the transfer end 50a of the transfer conveyor 50, and discharges it downward.

The dispersion feeder 3 is arranged below the input chute 2. The dispersion feeder 3 has a conical transport surface 3a that diverges downward. By vibrating the transport surface 3a, the dispersion feeder 3 uniformly transports the article A discharged from the charging chute 2 to the top of the transport surface 3a toward the outer edge of the transport surface 3a.

The plurality of radiation feeders 4 are arranged radially along the outer edge of the transport surface 3a of the dispersion feeder 3. Each radiating feeder 4 has a trough 4a extending outward from below the outer edge of the transport surface 3a. Each radiation feeder 4 vibrates the trough 4a to convey the article A discharged from the outer edge of the transport surface 3a toward the tip of the trough 4a.

The plurality of pool hoppers 5 are arranged so as to surround the center line CL parallel to the vertical direction. Each pool hopper 5 is arranged below the tip of the trough 4a of each radiation feeder 4. Each pool hopper 5 has a gate 5a that can be opened and closed relative to its bottom. Each pool hopper 5 temporarily stores the article A discharged from the tip of the corresponding trough 4a by closing the gate 5a. Further, each pool hopper 5 opens the gate 5a to discharge the temporarily stored article A downward.

The plurality of weighing hoppers 6 are arranged so as to surround the center line CL. Each weighing hopper 6 is arranged below the gate 5a of each pool hopper 5. Each weighing hopper 6 has a main body 61 and a gate 62 that can be opened and closed with respect to the bottom of the main body 61. By closing the gate 62, each measuring hopper 6 temporarily stores the article A discharged from the corresponding pool hopper 5 in the main body 61. Further, each measuring hopper 6 opens the gate 62 to downwardly discharge the article A temporarily stored in the main body 61.

The collecting chute 8 collects the articles A discharged from each measuring hopper 6 at the discharge port 8a. The discharge port 8a is located below the plurality of measuring hoppers 6 and on the center line CL. The collective chute 8 has a first chute (ejection chute) 81 and a second chute 82. The first chute 81 receives the article A discharged from each weighing hopper 6 and slides the article A toward the discharge port 8a (that is, the center line CL side and the lower side). The second chute 82 is a truncated cone-shaped cylinder that tapers downward, and has an upper opening 82a and a lower opening 82b. The second chute 82 uses the lower opening 82b as a discharge port 8a, and discharges the article A downward from the discharge port 8a.

The timing hopper 9 is arranged below the discharge port 8a. The timing hopper 9 has a gate 9a that can be opened and closed with respect to the bottom thereof. The timing hopper 9 temporarily stores the article A discharged from the collecting chute 8 by closing the gate 9a. Further, the timing hopper 9 opens the gate 9a to discharge the temporarily stored article A to the bag making / packaging machine 60.

The measuring unit 11 is arranged in the case 13 supported by the frame 12. The measuring unit 11 has a plurality of load cells 11a. Each load cell 11a supports a corresponding weighing hopper 6. When the article A is temporarily stored in each weighing hopper 6, the measuring unit 11 measures a weighing value according to the mass of the article A.

The control unit 20 is arranged in the case 13. The control unit 20 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The control unit 20 performs a transport operation of the distributed feeder 3 and the radiation feeder 4, an opening / closing operation of the gate 5a of each pool hopper 5, an opening / closing operation of the gate 62 of each measuring hopper 6, an opening / closing operation of the gate 9a of the timing hopper 9, and the like. Controls the operation of each part of the combination weighing device 1. The control unit 20 is communicably connected to the bag making / packaging machine 60.

The control unit 20 stores the measured value measured by the measuring unit 11 and the measuring hopper 6 for storing the article A corresponding to the measured value in association with each other. The control unit 20 selects a combination of measurement values from a plurality of measurement values measured by the measurement unit 11 and associated with each measurement hopper 6 so that the total value becomes the target measurement value. More specifically, the control unit 20 selects a combination of measurement values from a plurality of measurement values output by the measurement unit 11 so that the total value falls within a predetermined range with the target measurement value as the lower limit value. Then, the control unit 20 causes the measuring hopper 6 corresponding to the combination to discharge the article A.

The input chute 2, the dispersion feeder 3, the plurality of radiation feeders 4, the plurality of pool hoppers 5, and the plurality of measuring hoppers 6 are directly or indirectly supported by the case 13. The collective chute 8 and the timing hopper 9 are directly or indirectly supported by the frame 12.

Subsequently, the first shoot 81 will be described in detail. As shown in FIG. 2, the first chute 81 has a chute portion 83 and a mounting portion 84. The chute portion 83 is arranged so that one end portion 83x is located below the measuring hopper 6 and the other end portion 83y is closer to the center line CL than the one end portion 83x. In the state where the chute portion 83 is arranged, the one end portion 83x is the upper end portion and the other end portion 83y is the lower end portion.

The chute portion 83 is formed, for example, by bending a metal plate material. The chute portion 83 has a sliding surface 83a, a first side surface 83b, and a second side surface 83c. The sliding surface 83a, the first side surface 83b and the second side surface 83c define a sliding region R for sliding the article A.

The sliding surface 83a receives the article A and slides the article A. The sliding surface 83a constitutes the bottom surface of the sliding region R. The sliding surface 83a extends over the chute portion 83 to one end portion 83x to which the article A is supplied and the other end portion 83y to which the article A is discharged. That is, the sliding surface 83a extends from below the measuring hopper 6 to the outer edge of the opening 82a of the second chute 82. Hereinafter, the direction in which the sliding surface 83a extends is referred to as an "extending direction".

As shown in FIGS. 4 (a), 4 (b) and 4 (c), at least the bottom portion 84d of the sliding surface 83a is curved when viewed from the extending direction of the sliding surface 83a. The sliding surface 83a has a U-shape when viewed from the extending direction. In the present embodiment, the bottom portion 84d of the sliding surface 83a has the same curvature between one end portion 83x and the other end portion 83y of the chute portion 83. In addition to having the same value, the equivalent may mean a value including a measurement error or a slight difference in a preset range. That is, equality is a concept that includes not only cases of perfect equality but also cases of substantially equality.

In the chute portion 83, the depth of the gliding region R defined by the sliding surface 83a becomes deeper from the one end portion 83x side toward the other end portion 83y side when viewed from the extending direction. The depth of the sliding region R defined by the sliding surface 83a is the depth of the first straight line L1 connecting the pair of top positions P2 and P3 of the sliding surface 83a and the bottom 84d of the sliding surface 83a when viewed from the extending direction. When a second straight line L2 that passes through the lowest position P1 and is orthogonal to the first straight line L1 is set, it is the distance between the lowest position P1 and the first straight line L1 on the second straight line L2. The depth of the gliding region R becomes deeper from the one end 83x side toward the other end 83y side, which means that the depth may be continuously (gradually) deepened from the one end 83x side toward the other end 83y side. , May be gradually deepened. Further, the fact that the depth of the sliding region R becomes deeper from the one end 83x side toward the other end 83y means that at least a part between the one end 83x and the other end 83y is from the one end 83x side to the other end. It suffices if it becomes deeper toward the 83y side.

As shown in FIG. 4A, the depth of the sliding region R defined by the sliding surface 83a is “D1” on the one end portion 83x side of the chute portion 83. As shown in FIG. 4B, the depth of the sliding region R defined by the sliding surface 83a is "D2" in the vicinity of the central portion of the chute portion 83 in the extending direction. As shown in FIG. 4C, the depth of the sliding region R defined by the sliding surface 83a is "D3" on the other end 83y side of the chute portion 83. The depth of the gliding region R has a relationship of D1 <D2 <D3. In the present embodiment, the depth of the sliding region R defined by the sliding surface 83a is from one end 83x toward the center in C1 (see FIG. 3) between one end 83x of the chute portion 83 and the vicinity of the center. It becomes deep continuously and becomes constant between the vicinity of the central portion and the other end 83y side and C2 (see FIG. 3), and between the other end 83y side and the other end 83y C3 (see FIG. 3). ), It becomes shallow continuously from the other end 83y side toward the other end 83y.

As shown in FIG. 2, the first side surface 83b is directly connected to one end of the sliding surface 83a on the one end 83x side of the sliding surface 83a when viewed from the extending direction. As shown in FIG. 4B, the first side surface 83b is located outside the sliding surface 83a when viewed from the extending direction. The second side surface 83c is directly connected to the other end of the sliding surface 83a on the one end 83x side of the sliding surface 83a when viewed from the extending direction. The second side surface 83c is located outside the sliding surface 83a. In addition, "one surface is directly connected to the other surface" means that substantially no other surface is interposed between the one surface and the other surface, and the one surface and the other surface are not substantially intervened. This includes not only the case where the other surface is directly connected but also the case where a chamfered surface or the like is interposed between one surface and the other surface (hereinafter, the same applies).

As shown in FIGS. 2 and 3, the mounting portion 84 mounts the first chute 81 (chute portion 83) directly or indirectly to the frame 12.

As described above, in the first shoot 81 according to the present embodiment, the depth of the sliding region R defined by the sliding surface 83a becomes deeper from the one end portion 83x side toward the other end portion 83y side. As a result, in the first chute 81, when the article A supplied from the one end 83x side slides toward the other end 83y side, the sliding region R becomes deeper, so that the article A tends to lose its balance. When the article A has a long shape, the unbalanced article A slides so that the length direction is along the extending direction of the sliding surface 83a. Therefore, in the first chute 81, the article A is prevented from being caught on the sliding surface 83a. Further, in the first chute 81, since the bottom portion 84d of the sliding surface 83a is curved, it is difficult for the article A to be caught on the sliding surface 83a. Therefore, in the first chute 81, the retention of the article A can be suppressed.

In the first shoot 81 according to the present embodiment, the gliding region R is defined including the first side surface 83b and the second side surface 83c. The first side surface 83b is connected to one end of the sliding surface 83a on the one end 83x side of the sliding surface 83a when viewed from the extending direction. The second side surface 83c is connected to the other end of the sliding surface 83a on the one end 83x side of the sliding surface 83a when viewed from the extending direction. When viewed from the extending direction, the first side surface 83b and the second side surface 83c are located outside the sliding surface 83a. In this configuration, the first side surface 83b and the second side surface 83c can receive the article A supplied from the measuring hopper 6. Therefore, in the first chute 81, the article A supplied from the weighing hopper 6 can be more reliably collected on the sliding surface 83a.

In the first chute 81 according to the present embodiment, the bottom portion 84d of the sliding surface 83a has the same curvature in the extending direction. In this configuration, if the depth of the sliding region R is increased from the one end 83x side to the other end 83y side, the article A is more likely to lose its balance. Therefore, in the first shoot 81, the retention of the article A can be further suppressed.

[Second Embodiment]
Subsequently, the second embodiment will be described. As shown in FIGS. 5 and 6, the first chute 90 has a chute portion 91 and a mounting portion 92. The chute portion 91 is arranged so that one end portion 91x is located below the measuring hopper 6 and the other end portion 91y is closer to the center line CL than the one end portion 91x. In the state where the chute portion 91 is arranged, the one end portion 91x is the upper end portion and the other end portion 91y is the lower end portion.

The chute portion 91 is formed, for example, by bending a metal plate material. The chute portion 91 has a sliding surface 91a, a first side surface 91b, a second side surface 91c, a third side surface 91d, and a fourth side surface 91e. The sliding surface 91a, the first side surface 91b, the second side surface 91c, the third side surface 91d, and the fourth side surface 91e define a sliding region R for sliding the article A.

The sliding surface 91a receives the article A and slides the article A. The sliding surface 91a constitutes the bottom surface of the sliding region R. The sliding surface 91a extends over a one end portion 91x to which the article A is supplied and an other end portion 91y to which the article A is discharged in the chute portion 91. That is, the sliding surface 91a extends from below the measuring hopper 6 to the outer edge of the opening 82a of the second chute 82. Hereinafter, the direction in which the sliding surface 91a extends is referred to as an "extending direction".

As shown in FIGS. 7 (a), 7 (b) and 7 (c), at least the bottom portion 91f of the sliding surface 91a is curved when viewed from the extending direction of the sliding surface 91a. The sliding surface 91a has a U-shape when viewed from the extending direction. In the present embodiment, the bottom portion 91f of the sliding surface 91a has the same curvature between one end portion 91x and the other end portion 91y of the chute portion 91.

In the chute portion 91, the depth of the sliding region R defined by the sliding surface 91a becomes deeper from the one end portion 91x side toward the other end portion 91y side when viewed from the extending direction. The depth of the sliding region R defined by the sliding surface 91a is the depth of the first straight line L1 connecting the pair of top positions P2 and P3 of the sliding surface 91a and the bottom portion 91f of the sliding surface 91a when viewed from the extending direction. When a second straight line L2 that passes through the lowest position P1 and is orthogonal to the first straight line L1 is set, it is the distance between the lowest position P1 and the first straight line L1 on the second straight line L2.

As shown in FIG. 7A, the depth of the sliding region R defined by the sliding surface 91a is “D11” on the one end 91x side of the chute portion 91. As shown in FIG. 7B, the depth of the sliding region R defined by the sliding surface 91a is “D22” in the vicinity of the central portion of the chute portion 91 in the extending direction. As shown in FIG. 7C, on the other end 91y side of the chute portion 91, the depth of the sliding region R defined by the sliding surface 91a is “D33”. The depth of the gliding region R has a relationship of D11 <D22 <D33. In the present embodiment, the depth of the sliding region R defined by the sliding surface 91a is from one end 91x toward the center in C11 (see FIG. 6) between one end 91x of the chute portion 91 and the vicinity of the center. It becomes deep continuously and becomes constant between the vicinity of the central portion and the other end 91y side and C22 (see FIG. 6), and between the other end 91y side and the other end 91y C33 (see FIG. 6). ), It becomes shallow continuously from the other end 91y side toward the other end 91y.

As shown in FIG. 6, the first side surface 91b is directly connected to one end of the sliding surface 91a on the one end 91x side of the sliding surface 91a when viewed from the extending direction. As shown in FIG. 7A, the first side surface 91b is located outside the sliding surface 91a when viewed from the extending direction. The second side surface 91c is directly connected to the other end of the sliding surface 91a on the one end 91x side of the sliding surface 91a when viewed from the extending direction. The second side surface 91c is located outside the sliding surface 91a.

The third side surface 91d is directly connected to the end portion of the first side surface 91b when viewed from the extending direction. The third side surface 91d is located outside the first side surface 91b when viewed from the extending direction. The fourth side surface 91e is directly connected to the end portion of the second side surface 91c when viewed from the extending direction. The fourth side surface 91e is located outside the second side surface 91c.

As shown in FIG. 6, the mounting portion 92 mounts the first chute 90 (chute portion 91) directly or indirectly to the frame 12.

As described above, in the first shoot 90 according to the present embodiment, the depth of the sliding region R defined by the sliding surface 91a becomes deeper from the one end portion 91x side toward the other end portion 91y side. As a result, in the first chute 90, when the article A supplied from the one end 91x side slides toward the other end 91y side, the sliding region R becomes deeper, so that the article A tends to lose its balance. When the article A has a long shape, the unbalanced article A slides so that the length direction is along the extending direction of the sliding surface 91a. Therefore, in the first shoot 90, the article A is prevented from being caught on the sliding surface 91a. Further, in the first shoot 90, since the bottom portion 91f of the sliding surface 91a is curved, it is difficult for the article A to be caught on the sliding surface 91a. Therefore, in the first shoot 90, the retention of the article A can be suppressed.

In the first shoot 90 according to the present embodiment, the gliding region R is defined including the third side surface 91d and the fourth side surface 91e. The third side surface 91d is connected to the first side surface 91b, and the fourth side surface 91e is connected to the second side surface 91c. When viewed from the extending direction, each of the third side surface 91d and the fourth side surface 91e is located outside the first side surface 91b and the second side surface 91c, respectively. In this configuration, the article A supplied from the measuring hopper 6 can be gathered on the sliding surface 91a by the third side surface 91d and the fourth side surface 91e.

Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made without departing from the gist thereof.

In the above embodiment, the embodiment in which the first chute 81 has the shape shown in FIG. 2 has been described as an example. However, the shape of the first chute 81 is not limited to this. The first chute 81 may have a shape in which the depth of the sliding region R defined by the sliding surface 83a becomes deeper from the one end portion 83x side toward the other end portion 83y side when viewed from the extending direction. The same applies to the first shoot 90.

In the above embodiment, a mode in which the first side surface 83b and the second side surface 83c are directly connected to the sliding surface 83a in the chute portion 83 has been described as an example. However, each of the first side surface 83b and the second side surface 83c does not have to be directly connected to the sliding surface 83a. That is, the first side surface 83b and the second side surface 83c may be indirectly connected to the sliding surface 83a via another surface. The same applies to the shoot portion 91.

In the above embodiment, the embodiment in which the combination weighing device 1 includes the timing hopper 9 has been described as an example. However, the timing hopper 9 may not be provided.

In the above embodiment, the embodiment in which the collective chute 8 has the first chute 81 and the second chute 82 has been described as an example. However, it does not have to have the second shoot 82. For example, when the bag making / packaging machine 60 is provided with a configuration corresponding to the second chute 82, it is less necessary for the collective chute 8 of the combination weighing device 1 to have the second chute 82.

In the above embodiment, a mode in which the weighing hopper 6 and the sliding region R of the first chute 81 (chute portion 83) correspond one-to-one with each other will be described as an example. However, for example, one gliding region R may correspond to a plurality of measuring hoppers 6.

1 ... Combination weighing device, 6 ... Weighing hopper (hopper), 81 ... First chute (discharging chute), 83, 91 ... Chute portion, 83a, 91a ... Sliding surface, 83b, 91b ... First side surface, 83c, 91c ... 2nd side surface, 83x, 91x ... one end, 83y, 91y ... other end, 84d, 91f ... bottom, 91d ... third side surface, 91e ... fourth side surface, A ... article, CL ... center line, L1 ... first Straight line, L2 ... 2nd straight line, P1 ... bottom position, P2, P3 ... top position, R ... gliding area.

Claims (6)

A discharge chute that receives and discharges goods supplied from the outside.
It has a chute portion having a sliding surface that receives the article and slides the article.
The sliding surface extends over one end where the article is supplied and the other end where the article is discharged in the chute portion, and at least the bottom portion is curved when viewed from the extending direction.
When viewed from the extending direction, the depth of the sliding region defined by the sliding surface becomes deeper from the one end side toward the other end side. The depth of the sliding region defined by the sliding surface is a first straight line connecting a pair of top positions of the sliding surface and a bottom position of the bottom of the sliding surface when viewed from the extending direction. The discharge chute according to claim 1, which is the distance between the lowest position on the second straight line and the first straight line when a second straight line passing through the first straight line and orthogonal to the first straight line is set. The gliding area is defined to include a first side surface and a second side surface.
The first side surface is connected to one end of the sliding surface on the one end side of the sliding surface when viewed from the extending direction.
The second side surface is connected to the other end of the sliding surface on the one end side of the sliding surface when viewed from the extending direction.
The discharge chute according to claim 1 or 2, wherein the first side surface and the second side surface are located outside the sliding surface when viewed from the extending direction. The gliding area is defined to include a third side surface and a fourth side surface.
The third side surface is connected to the first side surface.
The fourth side surface is connected to the second side surface.
The discharge chute according to claim 3, wherein each of the third side surface and the fourth side surface is located outside the first side surface and the second side surface when viewed from the extending direction. The discharge chute according to any one of claims 1 to 4, wherein the bottom of the sliding surface has the same curvature in the extending direction. Multiple hoppers that are arranged so as to surround a center line parallel to the vertical direction and temporarily store articles,
The discharge chute according to any one of claims 1 to 5 is provided.
A combination weighing device in which one end of the discharge chute is located below the hopper and the other end is closer to the center line than the other end.

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