JPS62237981A - Weight selector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a weight sorting machine that measures the unit weight of articles such as agricultural and marine products, and sorts each article into a plurality of weight ranks based on the measured weight value. Regarding.

(Prior art) For example, the size and quality of the pearls produced from Akoya oysters used for pearl cultivation differ depending on their growth rate, that is, their weight.
I) Important items are selected based on the fineness of each item, but this type of selection work is required to be carried out intensively within a very limited period due to the timing of transactions, etc. Therefore, the present applicant proposed a weight sorting machine that can efficiently carry out this type of sorting work in prior patent applications (Japanese Patent Laid-Open Nos. 59-76583 and 60-231117).

All of these heavy-duty sorting machines feed articles to be sorted one by one into a plurality of buckets, which are circulated along a predetermined route by a conveying device, and whose weight has been determined by a weighing device. When passing the discharge station corresponding to the weight rank of the article in the bucket among the plurality of discharge stations provided along the transfer route, the bucket is operated from the article holding position to the article discharge position. According to this, the articles to be sorted are sequentially supplied to the above-mentioned weighing device, and the sorting of these articles by weight rank is automatically and continuously carried out. Become.

However, as disclosed in the above-mentioned prior patent application, the conveying device in this type of weight sorting machine has two parts at the end of the elongated pedestal on the loading station side where the refilling device is provided and the other end of the pedestal. Typically, a sprocket is placed on each sprocket, a chain is wound between both sprockets, and a plurality of buckets are attached to the chain at a constant pitch. In this case, the rotating shaft of the sprocket i~ is arranged in the horizontal direction, and the chain and the plurality of buckets taken by the chain are configured to circulate in a vertical plane, and these 'one-way running' 1) An output station is installed along the section, and the downward traveling section transfers the empty bucket 1 from which articles have been discharged at one of the discharge stations and returns it to the input station side. was.

(Problems to be Solved by the Invention) By the way, as mentioned above, the heavy 13B separate machine used for sorting marine products such as pearl oysters or agricultural products is limited to a relatively short period of time. Therefore, it is necessary to store it in an unused state for a relatively long period other than this period, and therefore, it is required to be compactly constructed and have excellent storage properties.

However, in a conventional weight sorter, since the conveyance device has the configuration as described in 1 above, the length of the conveyance device is at least long enough to arrange all the discharge stages in a line. Therefore, especially when there are many ranks by weight to be sorted and the number of discharge stages increases accordingly, the conveyance device becomes extremely long, and as a result, the overall weight of the weight sorter increases. However, it becomes large and lacks storage capacity when not in use.

(Means for Solving the Problems) In view of the above-mentioned conventional circumstances, the present invention aims to realize a compactly configured sorting machine as this type of weight sorting machine. In order to achieve this purpose, it is characterized by the following configuration.

That is, the weight sorter according to the present invention includes a conveyance device, a plurality of buckets that are circulated through a predetermined transfer route at constant pitch intervals by the conveyance device, and an input stage provided at a predetermined position on the transfer route; ] A weighing device disposed at the weighing device for weighing the articles to be sorted, an article supply means for feeding the articles one by one to the weighing device, and passing the articles weighed by the weighing device through the input station. a plurality of discharge stations arranged along the transfer route;
and a plurality of bucket attitude control means for operating each bucket from an article holding attitude to an article ejecting attitude when each bucket passes through a discharge station corresponding to the weight rank of the articles stored therein. The present invention is characterized in that the conveyance device is configured to circulate each bucket along a transfer route in a horizontal plane, and that the above-mentioned discharge stations are provided on the outbound and return routes of the transfer route, respectively. If necessary, a shoe 1- is provided that slopes downward from below the discharge station on either the outbound or return route of the transfer route toward the other discharge station. : The article to be sorted discharged at the discharge station on the outward route and the article to be sorted discharged at the discharge station on the return route are configured to be collected on the same side of the transfer route.

(Function) According to the above configuration, the circulation transfer route for the buckets by the transfer device is provided in a horizontal plane, and the discharge station is provided along both the outbound and return routes of the transfer path. If the length of the device is half the length of all the discharge stations, it would be sufficient to install two discharge stations in parallel, which would significantly shorten the conveyor.In this case, the articles to be sorted would be placed on both sides of the conveyor. However, if a chute is provided that slopes downward from the bottom of the discharge station on either the outward or return route of the transfer route toward the side of the other discharge stage, it is possible to The items to be sorted discharged from both discharge stations on the return trip are collected on one side of the conveyance device, and the length of the conveyance device itself is shorter than when all discharge stations are arranged in a row, so the sorting is easier. The collection area for collected goods becomes significantly narrower.

(Example) Examples of the present invention will be described below.

As shown in FIG. 1.2, the weight sorter 1 according to this embodiment has an article supply section 3 installed at one end of an elongated pedestal 2, and an article supply section 3 that is connected to the other end of the pedestal 2 from the supply section 3. An input conveyor 10 is disposed on the ash discharge section 4 side of the supply section 3. This input conveyor 10 is connected to the end of the frame 11 on the article supply section 3 side. A drive roller 13 is rotatably supported by a motor 12, a driven roller 14 is rotatably supported by the other end of the frame 11, and an endless belt 1 is wound between both rollers 13 and 14.
5, and as the belt 15 runs, the articles to be sorted are transported upward from a lower position and are dropped and supplied to the article supply section 3. Here, the belt 15
Partition walls 15a . It is supplied intermittently.

On the other hand, a conveyance device 20 is disposed on the pedestal 2 and covers both the supply section 3 and the discharge section 40. This conveyance device 20
As shown in FIG. 3, there is a drive shaft 21 arranged vertically at the end on the side of the supply section 3, a driven shaft 22 arranged vertically at the opposite end, and a driven shaft 22 arranged vertically at the opposite end. The first . 2nd sprocket h
23, 24, and a chain 25 wound between both sprockets 23, 24. When the drive shaft 21 is rotationally driven by a motor 26 via a transmission member 27, the chain 25 is rotated in a horizontal plane. It is designed to run in six directions. And in this chain 25,
A plurality of buckets 28 (14 in the illustrated example) are attached at regular pitch intervals, and the chain 25 moves these buckets 28 along its oval travel path.
. . 28 are also circulated in a horizontal plane. In that case, each of the buckets 1 to 28 is attached to a predetermined position on the chain 25 (the back part is connected to a connecting member 29 that is pulled) via a bottle 30 extending in the running direction of the chain 25, and That is, the chain 25 can be tilted from a horizontal position to a forward position in a plane perpendicular to the traveling direction of the chain 25 (see FIG. 4).

Moreover, each bucket 28...2 is
The extracting section 4 where the chain 25 is circulated is provided with discharge stations 41 to 410 at five locations along the outgoing path A1 and the incoming path A2 of the chain 25. 5 discharge station 41-45
and the 6th to 9th publication stations 46 on the return trip A2.
49, first to ninth packet attitude control devices 401 to 409 are provided on the pedestal 2"-. These attitude control devices 401 to 409 all have the same configuration, and as shown in FIG. A lever member 44 whose rear end is pivotally supported via a support member 43, a spring 45 that biases the lever member 44 upward, and a rod 46 that protrudes upward when energized causes the lever member 44 to move upwardly. The member 44 is attached to the spring 4
5 and a solenoid 46 that swings upward against the force of the solenoid 5.

An engaging portion 44a having a predetermined length extending in the running direction of the chain 25 is provided at the tip of the lever member 44,
When the tip of the lever member 44 is located downward, the engaging portion 4.4a engages with the flange portion 28a protruding from the upper edge of the back of the bucket 28, so that the bucket 28
is held in the horizontal position (article holding position) shown by the solid line, and when the lever member 44 is swung upward by energization of the solenoid 46, the flange part 28a of the engaging part 44a
By disengaging the bucket 28 from the above-mentioned horizontal position, the bucket 28 changes from the horizontal position to the forward tilted position (article discharging position) shown by the chain line.
It is designed to tilt under its own weight.

In addition, in this forward leaning posture, each bucket 28...2
8 is a receiving plate 50, 51 arranged along both sides of the pedestal 2.
It is now supported by Also, each bucket 28
The flange portion 2 is attached to the engaging portion 44a of the lever member 44.
8a is engaged and held in a horizontal position, the lever members 44...4 are transported in six directions by the running of the chain 25, but the lever members 44...
4 is located below, the flange portions 28a of the buckets 1 to 28 are sequentially engaged with the engaging portions 44a...44a of the lever members 44...44 on the downstream side.
It is designed to be transported in a horizontal position.

Furthermore, the ends of the article discharging section 4 on the side opposite to the supply section 3, that is, the fifth discharging station 45 and the sixth discharging station 46
As shown in FIG. 5, in the rotating part of the chain 25 between the bucket 28 and the rotating part, there is an arc-shaped first guide that supports the front lower surface of the bucket 28 and rotates the bucket 28 while holding the bucket 28 in a horizontal position. The member 52 and the first to fifth attitude control devices 40
A second arc-shaped guide member 53 that supports the lower front surface of the bucket 28 which has already been placed in the forward-leaning position by any one of + to 405, thereby rotating the bucket 28 in the forward-leaning position; In order to prevent the articles in the bucket 28 rotating in the attitude from being ejected outward due to centrifugal force, an article discharge prevention plate 54 having the same arcuate shape is disposed along the rotation locus of the front end of the bucket 28. are provided.

As shown in FIG. 3, the tenth discharge station 4+ is located closest to the supply section 3 on the return route A2 of the transfer route.
o is not equipped with the above-mentioned bucket attitude control device, therefore, the incoming bucket 28 that was transferred while being maintained in a horizontal attitude through the first to ninth discharge stations 41 to 49 also
The tenth discharge station 41o is always tilted forward, and as a result, all the buckets 2
8...28 is a forward leaning posture. The position directly below the supply section 3 in this rotating section is the article loading station 3.
1, and when the buckets 28, . By moving while being supported on the front F surface, it is possible to return from the forward leaning position to the horizontal position, and there is a horizontal position between the input station 31 and the first discharge station 41. Bucket 2
8 to the first discharge station 41 side in that state, and a discharge prevention plate 57 to prevent discharge of the articles in the bucket 28.

Here, in this embodiment, as shown in FIG.
The first to fifth receiving boxes Y1 to Y5 are installed directly below the first to fifth ejection stations 41 to 45 on the outward route A1 of the transfer route, and the sixth to tenth receiving boxes on the return route A2 are installed.
The upper ends of the chutes 1 to 58, which are inclined downward toward the outgoing path Δ1, are located in the discharge stations 46 to 41o, and the lower ends of the chutes 58 are connected to the first to fifth receiving boxes Y1 to Y5. It faces the 6th to 10th receiving boxes Y6 to Y10 installed below.

Next, the configuration of the article supply section 3 at one end of the pedestal 2 will be explained with reference to FIG. Below the supply table 60 is a load detector 71 and a substantially fan-shaped weighing pan 7 attached to the detector 71 via a bracket 72.
A measuring device 70 consisting of 3 is installed. The articles that are intermittently dropped from the input conveyor 10 are dropped into the recess 61 of the supply table 60, and the articles are placed above the weighing pan 73 on the bottom of the recess 61. The drop opening 62 is opened in a substantially fan shape (
(See Figure 2.6).

The drive shaft 21 of the conveying device 20 is projected upward from the center of the circular recess 61 of the supply table 60, and a first arm member 81 is attached to the protruding end of the drive shaft 21 of the supply table 60. A second arm member 82 is attached to a position directly below the respective members. These arm members 81 and 82 each include boss portions 81a and 82a that are fitted and fixed to the drive shaft 21, and a pair of arm bodies 81 that extend in opposite directions by 180 degrees from the boss portions 81a and 82a, respectively.
b, 81b, 82b, 82b, and scrapers 8 for scraping out articles attached to these arm bodies, respectively.
1 consisting of 10.8IC, 820, 820,
The first arm member 81 is connected to the four parts 6 of the supply table 60.
By being rotated by the drive shaft 21 in the recess 61, the article placed in the recess 61 is carried to the drop port 62, and the meter positioned below from the drop port 62 is dropped onto the weighing pan 73 of the device 70. , and the second arm member 82 is a scraper 82.
c, 82c is rotated so as to pass over the weighing pan 1173, causing the article on the weighing pan 73 to fall downward. In this case, the conveyor 12 is configured such that the input conveyor 10 drops the articles one by one between the pair of arm bodies 81b, 81b of the first arm member 81 into the recess 61 of the supply table 60. The relationship between the dropping speed and the rotational speed of the first arm member 81 (drive shaft 21) is set, and the first arm member 81 is
After dropping and supplying the article to 1173, the second arm member 82
Both arm members 81 .
Arm main bodies 81b, 81b and 82b in 82,
The positional relationship between the second arm member 82b and the second arm member 82b is set such that when the second arm member 82 drops an article on the weighing pan 73, the bucket 28 passes below it, that is, through the input station 31. The positional relationship with the bucket 28 is set. Here, in this embodiment, the operation of supplying and charging articles from the supply table 60 to the weighing pan 73 or the bucket 28 is performed twice per rotation of the drive shaft 21, so The transfer speed is also two buckets 2 per revolution of the drive shaft 21.
8.28 is set to pass through the input station 31. As shown in FIG. 6, the loading station 31 is equipped with a scraper 82c of the second arm member 82 to ensure that the scraper 82c of the second arm member 82 is inserted into the bucket 28 when the article is dropped into the bucket 28 from above the weighing pan 73. A guide plate 83 is provided for this purpose.

In addition to the above configuration, this weight sorter 1 is equipped with a control box 90 as shown in FIG. A control panel 91 on the front side of the control box 90 includes a power switch 92, a start switch 93 for the motor 26 in the conveying device 20, a first display section 941 that displays the rank of weighed articles to be sorted, and A display device 94 having a second display section 942 that displays the weight of the article or the number of items processed up to that point, a switch 95 96 that selectively displays the weight or the number of items processed on the second display section 942, and the number of items processed. a switch 97 for clearing to zero, and a first switch 97 for setting the ranking method according to the weight of the articles to be sorted. Second selection mode setting switches 98 and 99 are provided.

Here, the above-mentioned sorting modes include, when the item to be sorted is pearl oyster, the first mode when handling mother oysters, the second mode when handling young oysters, and the transaction period etc. when handling mother oysters. In relation to this, a third mode is set in which the upper and lower limit values of each rank in the first mode are subtracted by 0°5 momme, and the first mode and the second mode are set by the first selection mode setting switch 98. With the switch 98 switched to the first mode, the third mode is selected by turning on the second sorting mode setting switch 99.

Further, within the control box 90, a control device 100 constituted by, for example, a micro combi coater is provided. This control device 100 has an input/output port 101 as shown in FIG.
From the weight detector 71 in the weighing device 70 to the amplifier 1
02 and the weight signal a sent through the A-reverse converter 103, and each switch 9 disposed on the control panel 90.
Input signals from 5 to 99 and a metering timing signal q sent from a timing generator 104, which will be described later, are input. Further, a CPU 105 is connected to this input/output port 101, and the CPU 105 is also connected to this input/output port 101.
The PU 105 has a ROM 106 that stores a processing program.
And the above 1. 2nd sorting mode setting switch 98.99
R that stores the upper and lower limit values of each weight rank, the number of pieces processed by rank, the total number of pieces processed, etc. in the mode set in .
AM107 is connected, and this RAM10
7 is provided with a rank indicator 108 having a predetermined number of addresses for storing rank numbers by weight.

Then, from the input/output port 101, the display device 9
4, and a conveyor drive signal i sent to the motor 12 of the input conveyor 1o via the driver 109. Solenoid 46...4.6 (46+-469) in 401-409
Ejection signals j1 to j9, respectively, are output. Incidentally, the motor 26 of the conveyance device 20 is configured to directly output a drive signal k when a power switch 92 and a drive switch 93 are turned on.

Further, the timing generator 104 includes a cam 110 provided on the drive shaft 21 in the conveying device 20.
and a first micro switch 111 that is turned on and off twice by the cam 110 for each rotation of the drive tllll121. Furthermore, the input conveyor 10
The first motor 12 is also equipped with a second microswitch 112 for detecting its phase.

Next, the operation of this embodiment will be explained according to the flowchart of FIG. 9 showing the operation of the control device 100.

First, when the power switch 92 and start switch 93 on the operation panel 91 are turned on, the control device 100 initializes the input/output port 101 in step P1 of the flowchart, and then proceeds to step P2. At P3, the transport device 20
The first micro switch 11 of the timing generator 104 accompanies the rotation of the motor 26 or the drive shaft 21 in
Check the OFF operation and ON operation of 1. Then, in step P4, the CPU waits for this O'FF→ON operation to be repeated four times. This operation is carried out in the recess 61 of the supply table 60 in the supply section 3 and in the weighing device 7 before the operation of the weight sorter 1.
This is for completely discharging items remaining on the weighing pan 73 at No. 0. In other words, before operation, there is a possibility that a maximum of three items remain, two items in the recess 61 of the supply table 60 and one item on the weighing pan 73.
While the first micro switch 111 repeats the FF→ON operation three times, the first micro switch 111 repeats the FF→ON operation three times. Each scraper 810 , 820 of the second arm member 81 , 82 passes over the drop opening 62 of the supply table 60 and over the weighing pan 73 of the weighing device 70 three times, during which time the supply table 60 initially Objects remaining in the recess 61 at a position farther from the drop port 62 are also discharged from the weighing pan 73 and placed in the recess 6 of the supply table 60.
1 and on the weighing pan 73.

Then, when the control device 100 finishes this operation and confirms the fourth OFF→ON operation of the first microswitch 111, it executes step P5 and receives the weight signal a from the weight detector 71 in the weighing device 70. Enter the value and store it as the zero point.

When the zero point setting operation at the start of the operation is completed, the control device 100 next performs a sorting operation according to the weight of the articles to be sorted according to step P6 and subsequent steps, but at this point, there are no articles on the weighing pan 73 of the weighing device Since it is not supplied, the rank determination operation in steps P6 to P12 is not performed, and then in step P13, the motor 12 of the input conveyor 10 is
The start signal i is output to. Here, the motor 12 of the input conveyor 10 is rotated a little when the power switch 92 is turned on and is set at a predetermined position where the second micro switch 112 is activated, and the activation signal to the motor 12 is sent to the motor 12 in step P13. The output timing of step P
6. O of the first micro switch 111 confirmed at P7
Because the timing is regulated for FF→ON operation,
The phase relationship between the motor 12 of the input conveyor 10 and the drive shaft 21 of the conveyance device 20 is associated with each other. Therefore, the timing of the article loading operation is determined by the operation of the loading conveyor 10, and the first timing is determined by the rotation of the drive shaft 21. Second arm member 8
The timing of when 1.82 passes over the drop opening 62 and the weighing pan 73, respectively, or the timing when the bucket 28 passes the input station 31 is set at a predetermined timing. Incidentally, the motor 12 of the input conveyor 10
The starting signal i for the motor 12 is turned OFF in step P15, but the motor 12 rotates a predetermined amount regardless of the timing of turning OFF until the second microswip 112 operates. The belt 15 is rotated until it moves one bit (distance for dropping one article).

In this way, at the start of operation, the control device 10
0 performs only control to move the input conveyor 10 one pitch at a time while executing steps P13 to P20. Then, while repeating this control, the input conveyor 10
The articles to be sorted supplied onto the conveyor 15 are sequentially and intermittently introduced into the recess 61 of the supply table 60 in the supply section 3, and the first
The scraper 81c of the arm member 81 supplies the articles in the recess 61 sequentially from the drop port 62 onto the weighing pan 73 which enters the weighing device 70. When the articles are fed onto the weighing pan 73 in this manner, the control device 100 performs step P6. P
Turn off the first micro switch 111 according to y→○N
After confirming the operation, that is, confirming that it is the predetermined weighing timing using the timing signal g, the weight signal a from the weight (a) detection device 71 of the weighing device 70 is input in step P8, and the weighing pan is The weight value of the article on 73 is read. Then, in step P9, the first. After determining the sorting mode set by the second sorting mode setting switch 98,99, execute any of steps P10 to P12 to select the top rank for each weight in the mode.
The lower limit value and the weight value read in step P8 are combined to determine which rank of the mode the article on the weighing pan 73 corresponds to. The articles whose ranks by weight have been determined are then placed by the scraper 820 of the second arm member 82 from above the weighing pan 73 into the buckets 1 to 28 that pass through the loading station 31 below.

In this way, the IC articles are sequentially supplied to the weighing device @ 70, weighed and ranked based on the measured weight value, and then placed into each bucket 28...28.
By running the chain 25 in the conveying device 20, the first to
The bucket 28 is transported in the forward direction along the transport route provided with the tenth discharge stations 41 to 41o, and on the way there, when the bucket 28 passes through the discharge stations corresponding to the weight ranks of the articles therein, The control device 100 is a bucket attitude control device 40 at the discharge station.
A discharge signal j is sent to the solenoid 44 of

To explain this operation specifically, for example, in the three consecutive buckets 28...28, the first to third articles of the fifth rank, third rank, and second rank are placed in order from the preceding one. It is assumed that items 1 to 3 are input, and these items 1 to 3 are placed in the 3rd item. Second. first discharge station 43,
42.41 (3rd, 2nd, and 1st rank discharge positions, respectively). At this time, control device @1
Rank memory 10 set in M107 to 1 dog of 00
8, 3rd, 2nd. As shown in Table 1, the first address has the weight rank 5. Third. The first rank indicates that there are 26 in the second rank. Second. The data for the third article is included, but at this point neither the address number nor the rank number match, so the control device 100 performs step P.
14 these discharge stations 43, 42.4
No discharge signal is output to each solenoid 463, 462, 461 in No. 1.

(Margin below) Table 1 □ Then, in step P17, the control device 100 sequentially shifts the data of each article x1 to x3 to the next address, but in this case, this shift operation causes the second. Rank number (3,2> and address number (3,2) of the third item
> will match.

On the other hand, during this period, the buckets 28...28 containing the above-mentioned articles x1 to x3, respectively, are moved to the fourth bucket. Third. Move to the second discharge station 44.43.42.

Then, when the control device 100 executes step P14 next time, the control device 100 performs the third. The second discharge station located at 43°42. Third article X2. As for X3, since the rank number and address number match, discharge signals j3. Output j2. As a result, the third. Solenoid 46 at the second discharge station 43.42
3.462 is energized and the lever member 44.44 is swung upward, and the bucket 28.28 located at the station 43.42 is tilted from the horizontal position to the forward tilted position. The second in these buckets 28°28. Third article X2. X3 is the third corresponding to that rank. It will be discharged at a second discharge station 43.42.

In this way, the articles in each bucket 28...28 are discharged at the discharge station corresponding to the rank according to their weight rank, and at the first to fifth discharge stations 41 to 45. The articles are placed in the first to fifth receiving boxes Y1 to Y5, and the sixth to tenth stations 46 to 4.
The articles discharged in step 10 are sorted and put into the sixth to tenth receiving boxes Y6 to Yto via the chute 58, respectively, by weight rank. In that case, the first to fifth receiving boxes Y1 to Y5 and the sixth to tenth receiving boxes Y6 to Y10
are stacked one on top of the other, and are arranged on the first side of the forward path of the transfer route, so the collection work of the sorted articles sorted and stored in each of these receiving boxes Y1 to Y10 is carried out by the conveyance device 20. This can only be done on one side.

In addition, the control device 100 is a weighing device 71 of the weighing device 70.
When the weight value delivered from is less than 1 momme, in other words, tears M
When no article is supplied on the tray 73, step P+
P2O is executed from 9 and the weight value at that time is updated and set as the zero point. This operation is to eliminate measurement errors caused by foreign matter adhering to the weighing pan 73-1, and is executed by omitting the supply of articles to the input conveyor 12 once.

<Effects of the Invention> As described above, according to the present invention, the articles to be sorted that are sequentially supplied to the weighing device are ranked according to their weight, and are transported to the discharge station according to their rank by the bucket of the conveying device. In the weight sorter, the transfer path for each bucket by the transfer device is provided in a horizontal plane, and discharge stations are provided along both the outbound and return paths of the path, so that the length of the transfer device is The cost is reduced by half compared to the case where all the discharge stations are arranged in a row. As a result, the weight sorting machine as a whole has become significantly more compact, especially in the case of weight sorting machines for agricultural and marine products that have a limited period of use.
This improves the storage ability when not in use for a long period of time. In addition, as in the above embodiment, if the articles to be sorted discharged from the discharge stations on the outward and return routes are collected on one side of the conveyance device by using Shiko 1~, the length of the conveyance device can be increased. In combination with the shorter length, the work area for collecting the sorted articles becomes narrower, which improves the workability of this type of sorting work and saves work space.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and Fig. 1 is an overall side view of the weight sorter, Fig. 2 is a plan view thereof, Fig. 3 is a plan view showing the configuration of the conveying device, and Figs. 4.5 and 4.5. are enlarged cross-sectional views of the main parts of the conveyance device taken along lines IV-IV and -■ in Figure 3, respectively;
FIG. 6 is an exploded perspective view showing the structure of the article supply section, FIG. 7 is an enlarged sectional view of the supply section taken along the line ■-■ in FIG. 2, and FIG.
9 is a circuit diagram showing the configuration of the control device, and FIG. 9 is a flowchart showing the operation of the control device. 1... Weight sorter, 31... Loading station, 4
1-410... Discharge station, 20... Conveying device, 28... Bucket, 401-4010... Bucket attitude control means, 58... Chute, 70... Weighing device, 81... Article supply means (first arm member),
82... Article loading means (second arm member), A1...
・Outbound transfer route, A2... same return trip. Applicant: Tokyo Maekawa Science Co., Ltd. Ishida Kouki Seisakusho Co., Ltd.

Claims (2)

[Claims] (1) A transport device, a plurality of buckets that are circulated and transported by the transport device at regular pitch intervals along a predetermined transport route, and the weight of the articles to be sorted that are placed at a loading station provided at a predetermined position on the transport route. a weighing device for weighing, an article supplying means for feeding the articles one by one to the weighing device, an article loading means for sequentially loading the articles weighed by the weighing device into a bucket passing through the loading station, and the transporting device. Each bucket is disposed at a plurality of discharge stations provided along the route, and when each bucket passes the discharge station corresponding to the weight rank of the articles stored therein, the bucket is discharged from the article holding position. A weight sorting machine having a plurality of bucket attitude control means that actuate the attitude of the buckets, wherein the transfer device is configured to transfer each bucket along a transfer path in a horizontal plane, and the transfer device is configured to transfer each bucket along a transfer path in a horizontal plane. A weight sorting machine characterized in that the above-mentioned discharge station is provided on an outbound trip and a return trip. (2) Either the sorted articles discharged at the discharge station provided on the outbound trip or the sorted articles discharged at the discharge station provided on the return trip are placed below the one discharge station. Claim 1 is characterized in that the article is configured to be collected on the same side of the transfer path as the other article to be sorted by a chute that slopes downward from the article toward the other discharge station. weight sorting machine.