JP2004257760A - Combinatorial metering apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combinatorial metering apparatus of a simple structure capable of processing at a high speed, preventing objects to be metered from cracking and chipping, and accurate combinatorial metering. <P>SOLUTION: In the combinatorial metering apparatus, a supply trough 3 and a plurality of hoppers vertically and continuously arranged below the supply trough 3 form a channel 8. A plurality of the channels 8 are arranged in a row along an arrangement direction X to constitute a channel row 9. The combinatorial metering apparatus has: a channel group 20 formed by arranging the channel rows 9 in parallel with one another; a sorting means 10 arranged below the channel rows 9 and integrally formed over all the channels of the channel rows 9 for sorting the objects to be metered in sorting directions Y; an insertion opening 12a provided for a plurality of locations corresponding to the sorting directions Y and having the arrangement direction X of the channels as its longitudinal direction, discharge openings 12b at a plurality of different locations along the arrangement direction X of the channels; and is provided with a plurality of chutes 12 juxtaposed in the sorting directions Y. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combination weighing device that calculates and combines measured objects such that food is weighed in predetermined amounts and discharges the weighed objects in a predetermined amount.
[0002]
[Prior art]
In general, a combination weighing device is configured to select a combination having a target weight range from a combination of objects to be weighed by a plurality of weighing units, and collectively discharge the selected objects to be weighed. .
[0003]
There are roughly two types of conventional combination weighing devices, circular and rectangular.
[0004]
Among them, the circular combination weighing device has a plurality of supply troughs for transporting an object to be weighed, which are disposed in a substantially radial direction with a dispersion feeder (dispersion unit) as a center, and is provided below a tip end of each supply trough. A plurality of hoppers are sequentially arranged from top to bottom, and a collecting chute is arranged below each lowermost hopper.
[0005]
Further, in the rectangular combination weighing device, a plurality of supply troughs are arranged below the rectangular tank that stores the objects to be weighed in a line in parallel with their supply ports facing in the same direction. As in the case of the circular combination weighing device, a plurality of various hoppers are arranged below the tip of the hopper, and a collecting chute is arranged below the lowermost hopper.
[0006]
In these conventional circular and rectangular combination weighing apparatuses, the objects to be weighed are both supplied from the supply trough to the uppermost hoppers and further to the lower hoppers. The objects to be weighed are weighed for each hopper, a combination is selected so as to have a predetermined weight, and discharged to a collecting chute. The objects to be weighed finally collected in the collecting chute are discharged from the discharge port of the collecting chute.
[0007]
However, in recent years, with an increase in demand for weighed and bagged products, there has been a demand for faster processing in the packaging process of the products. Therefore, a method of performing high-speed processing by increasing the number of lower packaging lines, which have a lower processing capacity than the combination weighing and discharging operations, to a plurality of lines has been considered. Accordingly, a method was considered in which the combination weighing device sorts the objects to be weighed by the sorting device, supplies the weighed objects to a plurality of chutes, and discharges the weighed objects at a plurality of locations before discharging the objects to be weighed.
[0008]
As described above, in order to sufficiently exert the processing speed of the combination weighing device, it is necessary to discharge the objects to be weighed in two or more directions and to provide a packaging line for each direction. A method of collecting the discharged objects with one chute and discharging the objects at a plurality of locations has been considered for both the above-described circular and rectangular combination weighing devices.
[0009]
First, in a circular combination weighing apparatus 100, a weighing object is supplied to a pool hopper 103 via a dispersion feeder 101 and a radiation feeder 102 as disclosed in Patent Document 1 below and as shown in FIG. An object to be weighed is supplied from the pool hopper 103 to the weighing hopper 104 at a predetermined timing, and weighing is performed by a load cell (not shown) or the like. Below the weighing hopper 104, a chute 105 having two inner and outer discharge paths is arranged. The chute 105 has a structure in which an outer chute 107 is arranged concentrically around a funnel-shaped inner chute 106. The lower end of the outer chute 107 is further divided into two systems as shown in FIG. Separated and connected to the left and right timing hoppers 108 and 109, the two timing hoppers 108 and 109 respectively face one lower chute 110, and the weighed materials discharged to the inner and outer chutes 106 and 107 are The lower chute 110 is configured to be integrated.
FIG. 5B is a partially enlarged view of FIG. 5A viewed from the direction of the arrow A (side surface).
[0010]
Next, in the rectangular combination weighing apparatus 200, as shown in FIG. 6, a channel 208 in which a plurality of hoppers 201 are vertically arranged continuously below a supply trough 204 for supplying an object to be weighed is configured. The channels 208 were arranged side by side in a row.
In this rectangular weighing device 200, a funnel-shaped collecting chute 202 common to each channel 208 is installed below each lowermost hopper 201a, and one sorting device 210 is provided below an outlet 202b of the collecting chute 202. , And a plurality of chutes 203 are provided below the sorting device 210. The objects to be weighed discharged from each channel 208 are collected by a common collecting chute 202 and enter the sorting device 210, and are selectively supplied to the respective openings 203a of the plurality of chutes 203 by the sorting device 210, and are respectively discharged. It is discharged from the outlet 203b.
[0011]
[Patent Document 1]
Japanese Patent No. 2563093
[Problems to be solved by the invention]
However, in the above-described conventional combination weighing device, first, in the case of the circular combination weighing device 100, as shown in FIG. 5A, both the outer and inner chutes 106 and 107 have a conical shape. In order to discharge an object to be weighed in two or more directions, a large-scale apparatus is required, and the structure is complicated.
[0013]
In the case of the rectangular combination weighing device 200, as shown in FIG. 6, the collecting chute 202 and the sorting device 210 are separately provided between the discharge port of the lowermost hopper 201a and the discharge port 203b of the chute 203. Therefore, the falling height H2 of the object to be weighed in the line is the sum of the heights of the collecting chute 202, the sorting device 210, and the chute 203, and is considerably high. For this reason, there is a problem that the object to be weighed that has fallen with a large difference in height has cracks and chips.
Further, similarly to the circular combination weighing device 100, there is a problem that the device becomes large-sized and its configuration becomes complicated.
[0014]
In addition, in order to perform combination weighing with higher precision, it was necessary to provide a large number of channels and increase the number of combinations, but with a circular combination weighing device, the size of the device became larger and a rectangular combination weighing device was required. In the weighing device, since the devices are arranged in series in the direction in which the channels are arranged, there is a problem that the width of the weighing device becomes large.
[0015]
In order to solve the above-described problems, the present invention enables high-speed processing of a combination weighing device, prevents cracks in a line of an object to be weighed, performs more accurate combination weighing, and combines a simple structure. It is intended to provide a weighing device.
[0016]
[Means for Solving the Problems]
Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
According to the combination weighing device of the present invention, the supply trough 3 for supplying the objects to be weighed and the plurality of hoppers 4 continuously arranged in the vertical direction below the supply trough 3 form the channel 8, A channel row 9 in which the channels 8 are arranged in a row along the row direction X;
A distributing means 10 disposed below the channel row 9 and integrally formed over all the channels of the channel row 9 to distribute the object to be weighed by a predetermined amount in a distribution direction Y orthogonal to the arrangement direction X;
A plurality of input ports 12a are provided at a plurality of positions corresponding to the sorting direction Y of the sorting unit 10 and have a longitudinal direction that is the line direction X of the channels, and a plurality of different positions along the line direction X of the channels. A plurality of chutes 12 having a discharge port 12b and being arranged in parallel in the distribution direction Y;
It is characterized by having.
[0017]
Further, according to the combination weighing device of the present invention, the channel 8 is formed by the supply trough 3 for supplying the objects to be weighed and the plurality of hoppers 4 continuously arranged in the vertical direction below the supply trough 3. A channel group 20 configured by arranging a channel array 9 in which a plurality of the channels 8 are arranged in a line in the array direction X in parallel with each other;
A distributing means 10 disposed below the channel row 9 and integrally formed over all the channels of the channel row 9 to distribute the object to be weighed by a predetermined amount in a distribution direction Y orthogonal to the arrangement direction X;
A plurality of input ports 12a are provided at a plurality of positions corresponding to the sorting direction Y of the sorting unit 10 and have a longitudinal direction that is the line direction X of the channels, and a plurality of different positions along the line direction X of the channels. A plurality of chutes 12 having a discharge port 12b and being arranged in parallel in the distribution direction Y;
It is characterized by having.
[0018]
Furthermore, according to the combination weighing device of the present invention, a plurality of supply troughs 3 for supplying an object to be weighed, and a plurality of distribution troughs 10 that are disposed vertically below the supply trough 3 and that are continuously arranged in the vertical direction and that are provided at the lowest stage. A channel row 9 in which the hopper 4 forms a channel 8 and a plurality of the channels 8 are arranged in a line along the arrangement direction X;
It has input ports 12a provided at a plurality of positions corresponding to the sorting direction Y of the sorting means 10 and having the longitudinal direction X as the arrangement direction of the channels, and at a plurality of different positions along the arrangement direction X of the channels. A plurality of chutes 12 having an outlet 12b and arranged in parallel in the distribution direction Y;
It is characterized by having.
[0019]
Further, according to the combination weighing device of the present invention, a plurality of supply troughs 3 for supplying an object to be weighed and a plurality of distribution troughs 10 disposed vertically below the supply trough 3 and provided at the bottom of the supply trough 3. A channel group 20 configured by forming a channel 8 by the hopper 4 and a channel array 9 in which a plurality of the channels 8 are arranged in a line along the arrangement direction X, in parallel with each other;
It has input ports 12a provided at a plurality of positions corresponding to the sorting direction Y of the sorting means 10 and having the longitudinal direction X as the arrangement direction of the channels, and at a plurality of different positions along the arrangement direction X of the channels. A plurality of chutes 12 having an outlet 12b and arranged in parallel in the distribution direction;
It is characterized by having.
[0020]
Further, according to the combination weighing device of the present invention, each of the plurality of chutes 12 includes one of the chutes 13 and the other of the chutes 14 having the upper ports 13a, 14a and the lower ports having the discharge ports 13b, 14b. In the channel group 20, one of the outlets 13b, 13b arranged in parallel is close to each other, and the other outlets 14b, 14b are also close to each other.
[0021]
According to such a combination weighing device, the objects to be weighed discharged from the respective channels 8 of the plurality of channels are immediately distributed by the distribution unit 10 from the lowermost hopper 4a, and until the distribution unit 10 is reached. Since no device or the like is provided in the weighing device 1, the height of the entire weighing device 1 can be suppressed. Therefore, the falling height H1 from when the object to be weighed is discharged from the lowermost hopper 4a and reaches the discharge ports 13b and 14b of the chute 12 can be reduced. This makes it possible to prevent cracking of the object to be weighed in the line.
In addition, the objects to be weighed discharged from each channel 8 are simultaneously and directly sorted by the sorting means 10, so that there is no time error from reaching each of the channels 8 to the sorting means 10, and the objects to be weighed are eliminated. Since the length in the falling direction of the product, which is a lump in which the lumps are gathered, becomes shorter, the processing in the weighing device 1 can be performed at higher speed.
Furthermore, the processing can be sped up in the same manner as described above by discharging the objects to be weighed at a plurality of locations.
In addition, since no device is required between the lowermost hopper 4a and the distribution means 10, the weighing device 1 can be reduced in size and can have a simple structure. Therefore, the manufacturing cost of the device can be reduced.
[0022]
Furthermore, by configuring the combination weighing device 30 with the channel group 20 in which the respective channel arrays 9 are arranged in parallel, when performing the combination weighing of the objects to be weighed by linking a plurality of weighing devices, the channel array 9 is used. The machine width can be reduced as compared with the case where the combination weighing device is arranged in a straight line. Thereby, the falling height of the object to be weighed in the apparatus 1 can be suppressed. Therefore, cracking of the object to be measured can be prevented.
[0023]
In addition, since the weighing device 1 is constituted by the channel group 20 capable of shortening the machine width, the channel rows 9 can be arranged to such an extent that the machine width does not become unnecessarily long. For this reason, the method of selecting the objects to be weighed by the combination selecting means can be increased, and more accurate combination weighing can be performed.
[0024]
According to the combination weighing device of the present invention, the channel 8 is used to supply the supply trough 3 for supplying the object to be weighed and the object to be weighed which is disposed below the supply trough 3 and supplied from the supply trough 3. A stock hopper 5 for storing and discharging a predetermined amount; a weighing hopper 6 disposed below the stock hopper 5 for weighing and discharging the object to be weighed supplied from the stock hopper 5; And a memory hopper 7 for storing and discharging the objects to be weighed supplied from the weighing hopper 6.
[0025]
According to such a combination weighing device, it is possible to obtain a plurality of methods for selecting an object to be weighed by the combination selecting means.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
1 is a side view showing an embodiment of a combination weighing device according to the present invention, FIG. 2 is a front view showing an embodiment of the combination weighing device according to the present invention, and FIG. 3 is an embodiment of the combination weighing device according to the present invention. FIG. 4 is a perspective view showing an embodiment of a chute constituting a combination weighing device according to the present invention.
[0027]
The combination weighing device 1 according to the present embodiment includes a tank 2, a supply trough 3 provided below the tank 2, a stock hopper 5 provided below the supply trough 3, and a stock hopper 5 provided below the stock hopper 5. A measuring hopper 6, a memory hopper 7 disposed below the weighing hopper 6, a distribution device 11 disposed below the memory hopper 7, and a plurality of chutes 12 disposed below the distribution device 11. Are provided as main components. 1 and 2, the supply trough 3, the stock hopper 5, the weighing hopper 6, and the memory hopper 7 constitute a so-called channel 8 arranged in the vertical direction.
As shown by the large broken line frame in FIG. 2, a plurality of the channels 8 are arranged side by side to form a channel row 9.
Further, as shown by a large broken line frame in FIG. 1, a plurality of channel rows 9 are arranged in parallel to form a channel group 20. In the present embodiment, as shown in FIG. 1, two channel rows 9 are arranged back-to-back so that their back surfaces are in contact with the center line O.
[0028]
First, as shown in FIGS. 1 and 2, the tank 2 has a rectangular tubular shape that communicates a substantially rectangular opening in a vertical direction. The lower opening of the tank 2 is located on the rear end 3a of each supply trough 3 described later. An object to be weighed (not shown) is put into the tank 2 from an upper opening, and the object to be weighed is stored.
[0029]
Next, a plurality of supply troughs 3 are arranged with the tip 3b facing in a certain direction. That is, the supply troughs 3 are arranged in a state where they are arranged in a linear horizontal line, and as shown in FIG. 3, the supply troughs 3 include a pair of supply troughs 3 with the front end portions 3b facing outward. , A plurality of pairs (five pairs in the illustrated example) are arranged in parallel in the left-right direction of FIG. In other words, five supply troughs 3 arranged in a linear row are back-to-back, and a total of ten supply troughs 3 are provided. In the present embodiment, the number of the supply troughs 3 arranged in parallel is not limited to this.
[0030]
When a motor (not shown) rotates, the supply trough 3 is vibrated by a weight eccentrically fixed to the rotation shaft, and the trough body is displaced outward while sinking downward, and then the trough body is moved upward. The trough body vibrates repeatedly while being displaced inward while floating up. The object to be weighed on the trough main body is conveyed to the stock hopper 5 by this vibration.
[0031]
Next, the stock hoppers 5 are disposed below the leading end portions 3b of the respective supply troughs 3 in a back-to-back relationship. The stock hopper 5 has an opening 5a at an upper part and a discharge port 5b at a lower part, so that the object to be weighed supplied from the supply trough 3 can be discharged from the discharge port 5b. A shutter (not shown) is provided at the discharge port 5b, and is driven to open and close by a drive unit.
[0032]
The weighing hoppers 6 are arranged below the outlets 5a of the respective stock hoppers 5 in a back-to-back relationship. The weighing hopper 6 has an opening 6a at an upper part and a discharge port 6b at a lower part, so that the object to be weighed supplied from the stock hopper 5 can be discharged from the discharge port 6b. A shutter (not shown) is provided at the discharge port 6b, and is driven to open and close by a drive unit. The objects to be weighed supplied to the respective weighing hoppers 6 are respectively weighed by weighing devices (not shown).
[0033]
The memory hoppers 7 are disposed below the discharge ports 6a of the respective weighing hoppers 6 in a back-to-back relationship. The memory hopper 7 has an opening 7a at the upper part and a discharge port 7b at the lower part, so that the object to be weighed supplied from the weighing hopper 6 can be discharged from the discharge port 7b. A shutter (not shown) is also provided at the discharge port 7b of the memory hopper 7, similarly to the case of the stock hopper 5 and the weighing hopper 6, and is driven to be opened and closed by a driving unit.
[0034]
Next, the sorting device 11 is arranged below the channel row 9. The sorting device 11 is a common member for the plurality of channels 8, and its opening is formed in a substantially cylindrical shape over all the channels 8 in the channel row 9. The sorting device 11 is swung in a predetermined direction by a driving unit (not shown). In the present embodiment, the distribution direction Y is a direction orthogonal to the arrangement direction X of the channels 8. In this way, the objects to be weighed are equally distributed and supplied to the respective inlets 12a of the plurality of chutes 12 described later.
[0035]
Next, the chute 12 is composed of two chutes, one chute 13 and the other chute 14 in one channel row 9, arranged below the distribution device 11 and arranged in the distribution direction Y. Have been. As shown in FIG. 2, these chutes 13 and 14 have openings 13 a and 14 a in the upper portion each having a longitudinal direction equivalent to the longitudinal direction of the above-described sorting device 11. The dimensions in the direction are smaller than the diameters of the openings 13a and 14a, and the outlets 13b and 14b are provided at different positions in the channel arrangement direction X. A continuous inclined surface is formed from each of the inlets 13a, 14a to the outlets 13b, 14b. Further, as shown in FIG. 1, the two chutes 13 and 14 are inclined toward the center line O from the inlets 13a and 14a toward the outlets 13b and 14b. In the present embodiment arranged back-to-back, the outlets of one of the chutes are close to each other near the center line O, and the outlets of the other chutes are also close to each other near the center line O. . In the present embodiment, the number of shoots is two per channel row 9, but is not limited to this.
[0036]
In the combination weighing device 30 described above, the objects to be weighed contained in the tank 2 are supplied to the stock hoppers 5 by the supply troughs 3. Each stock hopper 5 stores a predetermined amount of an object to be weighed, and discharges the object to be weighed to a lower weighing hopper 6 by opening a shutter (not shown). Each of the supply troughs 3 supplies a new object to be weighed to the stock hopper 5 when there is no more object to be weighed in the stock hopper 5 therebelow.
Each of the weighing hoppers 6 stores the objects to be weighed from each of the stock hoppers 5, and weighs the objects to be weighed by respective measuring devices (not shown).
Next, after weighing, each stock hopper 5 discharges the object to be measured to the lower memory hopper 7 by opening a shutter (not shown).
[0037]
Further, the objects to be weighed discharged from the memory hopper 7 are sorted by the sorting device 11, supplied to the input ports 13a and 14a of the chutes 13 and 14, and passed from the discharge ports 13b and 14b through the collecting section 15. It is discharged to a packaging line (not shown). In this embodiment in which the channel rows 9 are arranged back to back to form the channel group 20, as shown in FIG. 4, the collecting unit 15 discharges one of the adjacent chutes 13, 13. One is to collect the objects to be weighed discharged from the outlets 13b, 13b, and the other is to collect the objects to be weighed discharged from the outlets 14b, 14b of the other adjacent chutes 14, 14. It is arranged in the place.
[0038]
The weighing signal of each weighing device is input to a combination selecting means (not shown). The combination selecting means stores the weight of the object to be weighed supplied to each weighing hopper 6 based on the weighing signal of each weighing device. For example, upon receiving a discharge request signal from a packaging line or the like, a combination within the target weight range is selected from combinations of the weight values of the objects weighed by the respective weighing hoppers 6, and the weighing target selected as the combination is selected. A selection signal corresponding to the weighing hopper 6 and / or the memory hopper 7 containing the object is output to open each shutter. Thereby, the objects to be weighed combined with the weight within the target weight range are supplied to the sorting device 11.
[0039]
Note that there are a plurality of methods for selecting an object to be weighed by the combination selecting means. First, there is a method in which a combination is selected from the objects to be weighed stored in the weighing hopper 6, and only the selected objects to be weighed are once stored in the memory hopper 7 and then discharged.
In addition, there is a method of storing the objects to be weighed by the weighing hopper 6 in the memory hopper 7 and selecting a combination from the objects to be weighed stored in the memory hopper 7.
Then, there is a method of selecting a combination from the object to be weighed in the weighing hopper 6 and the object to be weighed in the memory hopper 7. In the combination weighing devices 1 and 30 of the present invention, any of these methods may be adopted.
[0040]
According to the present embodiment, the objects to be weighed discharged from the memory hoppers 7 of the plurality of channels are immediately supplied from the memory hopper 7 to the sorting device 11, where the objects are sorted, and are sorted with the memory hopper 7. Since no device or the like is provided between the weighing devices 1 and 30, the height of the entire weighing devices 1 and 30 can be reduced. Therefore, the falling height H1 until the object to be weighed is discharged from the memory hopper 7 and reaches the discharge ports 13b and 14b of the chute 12 can be reduced. This makes it possible to prevent cracking of the object to be weighed in the line.
Since the objects to be weighed discharged from each channel 8 are simultaneously and directly sorted by the sorting device 11, there is no time error from reaching each channel 8 to the sorting device 11, and the objects to be weighed are collected. Since the length of the product in the falling direction is shortened, the processing in the weighing device 1 can be performed at higher speed.
Further, since the objects to be weighed are discharged at two places, two packaging lines can be laid under one channel row 9, which also enables the processing to be speeded up as described above.
In addition, since a device such as a collecting chute between the memory hopper 7 and the sorting device 11 which is conventionally installed is not required, the weighing devices 1 and 30 can be reduced in size, and a simple structure can be obtained. It becomes possible. Therefore, the manufacturing cost of the device can be reduced.
[0041]
Furthermore, the combination weighing device 30 is configured by the channel group 20 in which the two channel rows 9, 9 are arranged in two rows back to back, so that the combination weighing is configured such that the channel rows 9, 9 are arranged in a straight line. Since the width of the machine can be reduced as compared with the apparatus, the falling height H1 of the objects to be weighed discharged from each channel can be suppressed, and cracking of the objects to be weighed can be prevented.
Also, by being arranged back to back, each channel 8 faces outward. This facilitates attachment and detachment of the various hoppers 4, and improves workability such as when cleaning the hopper 4.
[0042]
Furthermore, since the weighing device 1 is constituted by the channel group 20 capable of shortening the machine width, each channel row 9 can be arranged to such an extent that the machine width does not become longer than necessary. This makes it possible to increase the number of methods for selecting the objects to be weighed by the combination selection means, and to perform more accurate combination weighing.
[0043]
Further, by setting the supply troughs 3 and below of each channel 8 to the stock hopper 5, the weighing hopper 6, and the memory hopper 7, it is possible to obtain a plurality of methods of selecting an object to be weighed by the combination selecting means as described above. Become.
[0044]
In the present embodiment, the sorting device 11 is provided below each channel 8. However, the sorting function is provided to the hopper 4a (the memory hopper 7 in the present embodiment) disposed at the lowest stage of each channel 8. It is good also as a structure provided. Thus, the object to be weighed is supplied directly from each channel 8 to the chute 12. Therefore, the processing speed of the weighing devices 1 and 30 can be further improved.
[0045]
Further, in the present embodiment, the sorting device 11 is formed in a substantially cylindrical shape having an opening that opens over all the channels 8 in one channel row 9, but the lengthwise direction extends over all the channels 8. It is also possible to use a sorting device that swings the substantially plate-shaped member and distributes the objects to be weighed to the input ports 13a and 14a of the chutes 13 and 14. Thereby, the sorting device has a simpler structure. Therefore, the weighing devices 1 and 30 can have a simpler structure.
[0046]
【The invention's effect】
As described above, according to the combination weighing device of the present invention, the objects to be weighed discharged from each channel are directly subjected to the distribution means, so that no apparatus or the like is required before reaching the distribution means. Therefore, the height of the entire apparatus can be reduced as compared with the case where the collecting chute and the sorting means are separately provided. As a result, the object to be weighed is discharged from each channel, the drop height until reaching the discharge port of the chute is suppressed, and cracking of the object to be weighed can be prevented.
In addition, the objects to be weighed discharged from each channel are simultaneously and directly sorted by the sorting means, so that there is no time error from each channel to the sorting means, and the lumps of the objects to be weighed are collected. Since the length of the product in the falling direction is shortened, the processing in the combination weighing device can be performed at higher speed.
Furthermore, since the objects to be weighed are discharged at two places, two packaging lines can be laid under one channel row, which also makes it possible to speed up the processing of the weighing device as described above. I have.
Further, since a device or the like is not required from each channel to the distribution means, the size of the combination weighing device can be reduced, and a simple structure can be achieved. Therefore, the manufacturing cost of the device can be reduced.
[0047]
Furthermore, the combination weighing device is configured by a channel group in which two channel rows are arranged back-to-back, so that the machine width is smaller than a combination weighing device in which each channel row is arranged in a straight line. Since the length can be shortened, the falling height from the discharge from each channel to the chute discharge port can be suppressed, and cracking of the object to be weighed can be prevented.
Also, by being placed back to back, each channel faces outward. This facilitates attachment and detachment of various hoppers, and improves workability such as when cleaning the hopper.
[0048]
Furthermore, in the combination weighing device constituted by this channel group capable of shortening the machine width, each channel row can be arranged to such an extent that the machine width does not become unnecessarily long. The number of methods can be increased, and more accurate combination weighing can be performed.
[0049]
In addition, since the supply troughs below each channel are constituted by the stock hopper, the weighing hopper, and the memory hopper, a plurality of methods of selecting the objects to be weighed by the combination selecting means can be obtained.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of a combination weighing device of the present invention.
FIG. 2 is a front view showing an embodiment of the combination weighing device.
FIG. 3 is a plan view showing an embodiment of the combination weighing device.
FIG. 4 is a perspective view showing an embodiment of a chute constituting the combination weighing device.
FIG. 5A is a front sectional view showing an example of a conventional combination weighing device.
(B) It is a side view which shows an example of the conventional combination weighing device.
FIG. 6A is a side view showing an example of a conventional combination weighing device.
(B) It is a front view which shows an example of the conventional combination weighing device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 3 ... Supply trough 4 ... Hopper 8 ... Channel 9 ... Channel row 10 ... Distributing means 12 ... Chutes 12a (13a, 14a) ... Input port 12b (13b, 14b) ... Discharge port 13 ... One chute 14 ... The other chute 20 ... Channel group X ... Channel arrangement direction Y ... Distribution direction

Claims (5)

A supply trough (3) for supplying an object to be weighed and a plurality of hoppers (4) arranged vertically below the supply trough form a channel (8), and the plurality of channels are arranged. A channel row (9) arranged in a row along the direction (X);
A distributing means (10) disposed below the channel row and integrally formed over all the channels of the channel row, for distributing the objects to be weighed by a predetermined amount in a distribution direction (Y) orthogonal to the arrangement direction;
An input port (12a) is provided at a plurality of positions corresponding to the distribution direction of the distribution means and has a longitudinal direction in which the channels are arranged. The discharge ports are disposed at a plurality of different positions along the arrangement direction of the channels. A plurality of chutes (12) having an outlet (12b) and arranged in parallel in the sorting direction;
A combination weighing device comprising: A supply trough (3) for supplying an object to be weighed and a plurality of hoppers (4) arranged vertically below the supply trough form a channel (8), and the plurality of channels are arranged. A channel group (20) configured by arranging channel rows (9) arranged in a line along the direction (X) in parallel with each other;
A distributing means (10) disposed below the channel row and integrally formed over all the channels of the channel row, for distributing the objects to be weighed by a predetermined amount in a distribution direction (Y) orthogonal to the arrangement direction;
An input port (12a) is provided at a plurality of positions corresponding to the distribution direction of the distribution means and has a longitudinal direction in which the channels are arranged. The discharge ports are disposed at a plurality of different positions along the arrangement direction of the channels. A plurality of chutes (12) having an outlet (12b) and arranged in parallel in the sorting direction;
A combination weighing device comprising: A channel (8) is formed by a supply trough (3) for supplying an object to be weighed, and a plurality of hoppers (4) that are vertically arranged below the supply trough and that are provided with a sorting means (10) at the lowest stage. ), Wherein a plurality of the channels are arranged in a line along the arrangement direction (X) (9);
An input port (12a) is provided at a plurality of positions corresponding to the distribution direction (Y) of the distribution means and has a longitudinal direction in which the channels are arranged, and a plurality of different positions along the channel arrangement direction. A plurality of chutes (12) having a discharge port (12b) and being juxtaposed in the distribution direction;
A combination weighing device comprising: A channel (8) is formed by a supply trough (3) for supplying an object to be weighed, and a plurality of hoppers (4) that are vertically arranged below the supply trough and that are provided with a sorting means (10) at the lowest stage. ), A channel group (20) configured by arranging a channel row (9) in which a plurality of the channels are arranged in a line along the arrangement direction (X) in parallel with each other;
An input port (12a) is provided at a plurality of positions corresponding to the distribution direction (Y) of the distribution means and has a longitudinal direction in which the channels are arranged, and a plurality of different positions along the channel arrangement direction. A plurality of chutes (12) having a discharge port (12b) and being juxtaposed in the distribution direction;
A combination weighing device comprising: Each of the plurality of chutes has an inlet (13a, 14a) at an upper part and one chute (13) having an outlet (13b, 14b) at a lower part and the other chute (14), and the channel has a channel. 3. The group according to claim 2, wherein, in the group, one of the outlets (13b, 13b) arranged in parallel is close to each other, and the other outlets (14b, 14b) are also close to each other. 5. The combination weighing device according to 4.

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