JP5278295B2 - Color sorter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a color sorter capable of ensuring the safety of a worker without degrading the appearance of the device even when granular material excessively supplied to a tank is returned to a lifting machine. <P>SOLUTION: The color sorter includes a lifting portion provided with a plurality of lifters for carrying an article to be sorted to a plurality of tanks so as to meet the plurality of tanks; a conveyance means of conveying the article to be sorted stored in at least one tank; and a sorting part for detecting an article to be sorted, dropping from an end of the conveyance means and for sorting articles to be sorted into good or inferior ones based on the detection result. The lifting part is structured to store the plurality of lifters in the housing. For at least one of the tanks, an article to be sorted excessively supplied through a return path provided in the housing is returned to the lifter. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a color sorter that sorts granular materials such as grains and resin pellets by color.

  Conventionally, colors that sort raw materials consisting of grains such as rice and wheat, resin pellets, coffee beans, and other granular materials into good and defective products by color, and select and remove foreign substances mixed in the raw materials by color A sorter is known (see Patent Document 1).

FIG. 11 is an overall configuration diagram of the grain sorter described in Patent Document 1, and FIG. 12 is an external perspective view of the grain sorter shown in FIG.
The grain sorter described in Patent Document 1 transports grains to the primary tank 114 by the elevator 102 and stores them, and supplies the grains or grain groups accommodated in the primary tank 114 to a predetermined movement path. Then, the determination means 152, 154 provided corresponding to the movement path primarily determines whether the grain is a defective product or whether the grain group includes a defective product, and the determination The grain or grain group is primarily sorted by sorting means 166 and 168 provided corresponding to the moving path downstream of the means 152.154. In addition, the grain sorter transports and stores a grain or a grain group containing defective products or defective products sorted by the primary sorting to a secondary tank 116, and is stored in the secondary tank 116. The determined grain or grain group is supplied again to the predetermined movement path, and the judgment means 152, 154 determines whether the grain is a defective product or whether the grain group contains a defective product. A secondary determination is made, and the grain or grain group is secondarily sorted by the sorting means 166, 168.
And the grain sorter described in Patent Document 1 is provided with an overflow trough 100 on the side surface of the secondary tank 116, and when the grain supplied to and stored in the secondary tank 116 exceeds a predetermined amount, The grain naturally flows down the overflow straw 100 and is returned to the elevator 102 via the pipe 110.

  By the way, the overflow basket 100 and the pipe 110 described in Patent Document 1 are installed in an exposed state outside the grain sorter as shown in FIGS. 11 and 12. The overflow tub 100 and the pipe 110 installed in this bare state damage the external appearance of the apparatus. Further, the overflow basket 100 and the pipe 110 interfere with the work such as the grain supply of the worker and impair the safety.

JP 11-47697 A

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a color sorter that can ensure the safety of an operator without deteriorating the appearance of the apparatus even when the particulate matter excessively supplied to the tank is returned to the elevator.

In order to achieve the above-mentioned object, the present invention provides a lifting unit having a plurality of elevators for transporting the objects to be sorted to a plurality of tanks corresponding to the tanks, and a transfer for transferring the objects to be sorted contained in at least one tank. means and detects the object to be sorted matter falling from the end of said transfer means, Ri Na equipped with a sorting unit for sorting the sorted matter in the molded product is good or defective based on the detection result, the lifting unit , together with the plurality of elevators to Ru is constructed by housing in a housing, comprising a first elevator for transporting a sorted matter in the first tank, a second elevator for transporting a sorted matters into the second tank, The sorting unit includes a primary sorting unit that sorts an object to be sorted transferred from the first tank, and a sorting target that is sorted into a defective product in the primary sorting unit and is transported by the second elevator and transferred from the second tank. Secondary sorting section for further sorting items A color sorter comprising wherein the first tank is made is configured to return the object to be sorted matter is excessively supplied via a return passage provided in said housing to said first elevator, The elevating unit further includes a third elevator for conveying a material to be sorted to be non-defective in the primary sorting unit to a third tank, and the material to be conveyed to the third tank is located on a side of the sorting machine main body. It is characterized in that it is discharged out of the machine from the refined product discharge tub extending to

The present invention also includes an elevating unit provided with a plurality of elevators for conveying the objects to be sorted to a plurality of tanks corresponding to the tanks, a transfer means for transferring the objects to be sorted accommodated in at least one tank, and the transfer A sorting unit that detects a sorting object falling from an end of the means and sorts the sorting object into a non-defective product and a defective product based on the detection result, and the lifting unit includes a plurality of elevators. And a first elevator that conveys the object to be sorted to the first tank, and a second elevator that conveys the object to be sorted to the second tank. A primary sorting unit that sorts objects to be sorted transferred from one tank; and a second sorting unit that sorts defective products in the primary sorting unit and transports them from the second tank by the second elevator. A color comprising a next sorting unit The second tank is configured to return an object to be sorted supplied excessively through a return passage provided in the housing to the first elevator or the second elevator. The elevating unit further includes a third elevator for conveying a material to be sorted to be non-defective in the primary sorting unit to a third tank, and the material to be sorted conveyed to the third tank is located on the side of the main body of the sorting machine. It is characterized by being discharged out of the machine from the extended fine product discharge basket.

  In the color sorter according to the present invention, the first elevator is configured to convey the sorting object thrown into the sorting machine and the sorting object sorted as a non-defective product in the secondary sorting unit to the first tank. Is preferred.

Further, the reference invention includes an elevating unit having an elevator for transporting an object to be sorted to a tank, a transfer means for transferring the object to be sorted accommodated in the tank, and an object to be sorted falling from an end of the transfer means. A sorting unit that detects and sorts an object to be sorted into a non-defective product and a defective product based on the detection result, and the lifting unit is a color sorting machine configured by housing the elevator in a housing, The tank is configured to return an object to be sorted, which is excessively supplied through a return passage provided in the housing, to the elevator, and the lifting part is sorted by the sorting part into a non-defective product. Elevator that conveys the sorting product to the refined tank is provided, and the sort object to be conveyed to the refined tank is discharged out of the machine from a refined discharge basket extending to the side of the sorter body. It is.

  In the color sorter according to the present invention, at least one tank returns the excessively supplied sorting objects to the elevator through a return passage provided in a housing that houses a plurality of elevators. The passage is not exposed to the outside of the sorter, the appearance of the apparatus is not impaired, and the safety of the operator can be ensured.

  In the color sorter according to the present invention, the tank returns the excessively supplied objects to be sorted to the elevator through a return path provided in a housing that houses the elevator. It is not exposed to the outside of the machine, the appearance of the apparatus is not impaired, and the operator's safety can be ensured.

The whole perspective view from the front upper right of the color sorter | selector in embodiment of this invention. The left view of the color sorter | selector of FIG. The whole perspective view from the back upper left of the color sorter | selector of FIG. Explanatory drawing of the internal structure in the AA cross section of FIG. Explanatory drawing of the internal structure in the BB cross section of FIG. The schematic explanatory drawing of the internal structure in the color sorter | selector of FIG. Explanatory drawing of the trough of the vibration conveyor which comprises the color sorter | selector of FIG. Explanatory drawing of the return channel | path of the to-be-sorted item supplied to the tank excessively. CC sectional drawing in FIG. Explanatory drawing of the return channel | path of the to-be-sorted item supplied to the tank excessively. The whole block diagram of the conventional grain sorter. The external appearance perspective view of the conventional grain sorter.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an overall perspective view from the front upper right of a color sorter according to an embodiment of the present invention. FIG. 2 is a left side view of the color sorter. FIG. 3 shows an overall perspective view from the upper left of the back of the color sorter. 4 shows an AA section in FIG. 3, and FIG. 5 shows a BB section in FIG. FIG. 6 is a schematic explanatory diagram of the internal structure from the front direction of the color sorter. FIG. 7 is an explanatory view of a trough of a vibrating conveyor constituting the color sorter.

  The color sorter according to the embodiment of the present invention is capable of sorting non-defective products and defective products, or foreign substances mixed in the raw materials by color, using grains, resin pellets, coffee beans, and other granular materials as raw materials. .

  The color sorter according to the embodiment of the present invention includes an elevating unit 1 that is located on the back side and granulates the raw material, an optical sorting unit 2 that is located on the front side of the elevating unit 1 and sorts the raw material, and below the color sorter And a vibrating conveyor 3 that returns the sorted raw material to the lifting unit 1.

  The elevating unit 1 is disposed adjacent to the first bucket conveyor 11, the second bucket conveyor 12 disposed adjacent to one side of the first bucket conveyor 11, and the other side of the first bucket conveyor 11. The third bucket conveyor 13 is configured. The bucket conveyors 11 to 13 are arranged side by side in the front view width direction of the color sorter and are compactly accommodated in the housing as shown in FIGS. 1 to 5.

  The 1st bucket conveyor 11 raises the raw material thrown into the injection | throwing-in hopper 14 provided behind the raising / lowering part 1, and is located above the primary selection part 20 in the optical selection part 2 which mentions the said raw material later. It is for storing in the storage tank 15. In addition, the first bucket conveyor 11 granulates a raw material (hereinafter referred to as “secondary non-defective product”) that has been made non-defective in the secondary selecting unit 21 of the light selecting unit 2 to be described later, and the secondary non-defective product is converted into the first non-defective product. This is for storing in one storage tank 15.

  The second bucket conveyor 12 is for pulverizing a raw material (hereinafter referred to as “primary good product”) that has been made a non-defective product in the primary sorting unit 20 of the optical sorting unit 2 and sending the raw material to the refined tank 16a. . Below the refined tank 16a, a refined product discharge basket 16b communicating with the outside of the color sorter is provided, and the primary non-defective product sent to the purified product tank 16a is discharged from the refined product dispenser 16b to the outside of the machine.

  The 3rd bucket conveyor 13 granulates the raw material (henceforth a "primary defective product") made into the inferior goods in the said primary selection part 20, and the secondary selection part 21 in the optical selection part 2 mentioned later in the said raw material. It is for storing in the 2nd storage tank 17 located above.

  Since the lifting / lowering unit 1 of the color sorter in the present embodiment is arranged so that the bucket conveyors 11 to 13 are adjacent to each other, by using each drive shaft as a common shaft, they can be simultaneously driven by the same drive source. It is something that can be done.

  Here, as shown in FIGS. 1 to 5, the charging hopper 14 is provided at the lower part of the color sorter and behind the elevating unit 1, and is configured to be able to feed the raw material from the rear of the color sorter. ing. The charging hopper 14 is provided within the range of the dimension in the width direction when the color sorter is viewed from the front.

  Further, as shown in FIGS. 2 and 6, the fine product discharge basket 16b is provided at a high position of the color sorter so as to extend from the left side toward the outside of the machine.

  As shown in FIGS. 4 to 6, the optical sorting unit 2 includes an optical detection unit 22 and an ejector 23, and the primary sorting unit 20 and the secondary sorting unit 21 are arranged according to the position in the front view width direction of the color sorter. It can be divided.

  As shown in FIG. 6, the primary sorting unit 20 performs sorting of the raw material supplied from the first storage tank 15, and the secondary sorting unit 21 provides the raw material supplied from the second storage tank 17. Is selected.

  As shown in FIGS. 4 to 6, the raw materials stored in the storage tanks 15 and 17 are supplied at a constant flow rate through the first and second rotary valves 18 and 19, respectively. And after flowing down on the 2nd chute | shoot 24,25 and discharge | released from each chute | shoot 24,25, it is detected by the optical detection part 22. FIG. As a result, the primary non-defective product is provided from the first discharge rod 26 provided below the primary sorting unit 20, and the primary defective product is provided by the air from the ejector 23 and provided below the primary sorting unit 20. The discharged second discharge rod 27 is discharged onto the trough 30 of the vibration conveyor 3 described later. The secondary good products are also discharged onto the trough 30 of the vibration conveyor 3 from a third discharge rod 28 provided corresponding to the lower side of the secondary sorting unit 21. The raw material determined to be defective in the secondary sorting unit 21 (hereinafter referred to as “secondary defective product”) is directly color-sorted from a fourth discharge basket 29 provided corresponding to the lower side of the secondary sorting unit 21. It is discharged outside the machine.

  The optical detection unit 22 and the ejector 23 in the optical sorting unit 2 according to the present embodiment can detect a plurality of raw materials falling in a line shape in the width direction of the color sorter and appropriately play the raw materials with air. That's fine.

  In the present embodiment, the optical detection unit 22 may be a known one having a sensor comprising a CCD line sensor or the like, a light source comprising a fluorescent lamp or the like, and a background as background means. As shown in FIGS. 4 and 5, a pair of the optical detection units 22 in the present embodiment are arranged with the chutes 24 and 25 sandwiched in the front-rear direction. Each optical detection unit 22 includes a sensor 221 including a CCD line sensor, a mirror 222, a light source 223, and a background. And each optical detection part 22 images the raw material which falls from the said chute | shoots 24 and 25 in a detection position, and judges the foreign material mixed in the non-defective article and the defective article of a raw material based on this imaging signal. is there. The ejector 23 may use a leaf spring or the like using a solenoid or the like as a driving means instead of the one that repels the raw material with air. 4 and 5, the sensor 221, the mirror 222, and the light source 223 are provided with reference numerals only to the front optical detection unit 22, but the rear optical detection unit has the same configuration as illustrated. It is.

The vibration conveyor 3 is disposed below the optical sorting unit 2, and as shown in FIG. 7, the raw materials sorted by the optical sorting unit 2 are separated into primary good products, primary defective products, and secondary good products. A trough 30 that can be received is provided.
The trough 30 is formed with a first rod 31, a second rod 32, and a third rod 33 corresponding to the positions of the raw materials discharged from the first to third discharge rods 26 to 28, The raw materials sorted by the optical sorting unit 2 can be supplied to the intended bucket conveyors 11 to 13, respectively.

Next, the operation of the color sorter in the embodiment of the present invention will be described.
When the raw material is put into a feeding hopper 14 provided at the lower part of the color sorter and behind the lifting unit 1, the raw material is lifted by the first bucket conveyor 11 and stored in the first storage tank 15. It is supplied to the first chute 24 at a constant flow rate via the first rotary valve 18.
Then, the raw material falling on the first chute 24 is detected by the optical detection unit 22 in the primary sorting unit 20 of the optical sorting unit 2, and the primary non-defective product is fed from the first discharge basket 26 to the first basket of the trough 30 of the vibration conveyor 3. The primary defective product is bounced by the ejector 23 and falls from the second discharge rod 27 onto the second rod 32 of the trough 30 of the vibration conveyor 3.

  The primary non-defective product dropped on the first basket 31 is conveyed to the second bucket conveyor 12 of the elevating unit 1 by the action of the vibration conveyor 3 and is granulated and sent to the refined tank 16a, and then at the high position of the color sorter. In this case, the product is discharged out of the color sorter from a fine product discharge basket 16b provided extending from the left side to the outside.

  On the other hand, the primary defective product that has fallen on the second basket 32 is conveyed to the third bucket conveyor 13 of the elevating unit 1 and is granulated and stored in the second storage tank 17, and then via the second rotary valve 19. And supplied to the second chute 25 at a constant flow rate. The primary defective product falling on the second chute 25 is detected by the optical detection unit 22 in the secondary sorting unit 21 of the optical sorting unit 2, and the secondary good product is sent from the third discharge rod 28 to the trough 30 of the vibrating conveyor 3. The second defective product is bounced by the ejector 23 and directly discharged from the fourth discharge rod 29 to the outside of the color sorter.

  The secondary non-defective product dropped on the third basket 33 is conveyed to the first bucket conveyor 11 of the elevating unit 1 by the action of the vibration conveyor 3, and is granulated together with the raw material charged into the charging hopper 14, and is stored in the first storage tank. 15 is stored. Then, it is sorted again by the primary sorting unit 20 of the optical sorting unit 2.

  By the way, the color sorter according to the present embodiment uses a return passage formed in a housing for storing the bucket conveyors 11 to 13 with the raw material excessively supplied to the first and second storage tanks 15 and 17. Through the feeding hopper 14.

  As shown in FIGS. 4 and 5, the second storage tank 17 has an opening 42 formed in the upper part on the lifting unit 1 side, and a first return rod 44 is provided outside the opening 42 downward. ing. The first return rod 44 is connected to a second return rod 54 provided on the front surface of the front cover 51 of the housing, and the second return rod 54 is connected to the front cover 51 through an opening 56 formed in the front cover 51. Is connected to a third return rod 58 provided inside the housing, that is, inside the housing. The third return rod 58 is in communication with a fourth return rod 61 provided on the outer surface of the outer cover 52, that is, on the top of the charging hopper 14, through an opening 60 formed in the outer cover 52 of the housing.

  In the color sorter according to the present embodiment, when the raw material supplied to the second storage tank 17 exceeds a predetermined amount, the raw material overflows from the opening 42 and the first to fourth return rods 44 and 54. , 58, 61 and the openings 42, 56, 60 are returned to the charging hopper 14 through a return passage.

  8 to 10 show the configuration of the return passage in more detail. FIG. 8 shows a state in which the storage tank unit 40 is removed from the color sorter body, and FIG. 9 shows the storage tank unit 40 in FIG. CC sectional drawing of each is shown. FIG. 10 shows the inside of the housing of the elevating unit 1 of the color sorter body.

  As shown in FIG. 9, openings 41 and 42 are formed above the first storage tank 15 and the second storage tank 17, respectively. As shown in FIG. 8, the openings 41, 42 are second holes provided on the front cover 51 of the housing of the elevating unit 1 via first return rods 43, 44 provided outside the tanks 15, 17. As shown in FIG. 10, it communicates with the return rods 53 and 54, and communicates with the back side of the front cover 51, that is, the third return rods 57 and 58 provided in the housing.

  Here, FIG. 10 partially omits the bucket conveyors 11 to 13 in the elevating unit 1 for the sake of explanation, but the third return rods 57 and 58 include the rear surface of the front cover 51 and the bucket conveyors. It attaches to the partition plates 63 and 64 which partition the area | region which arrange | positions 11-13, and comprises a part of return channel | path.

  The color sorter according to the present embodiment includes a return passage for returning the raw material excessively supplied to the first and second storage tanks 15 and 17 to the input hopper 14 as described above. Is formed in a housing that houses the bucket conveyors 11 to 13 in the elevating unit 1, and the return path is not exposed to the outside, which is preferable in appearance and may hinder the operator's work. It is also preferable for ensuring safety.

In the embodiment of the present invention, both the first storage tank 15 and the second storage tank 17 return the excessively supplied material to the charging hopper 14 through the return passage. The raw material excessively supplied to 17 may be returned to the lower part of the third bucket conveyor 13.
If the raw material supplied to the second storage tank 17 is returned to the input hopper 14, the primary sorting will be performed again and the efficiency will be reduced, but if it is returned to the lower part of the third bucket conveyor 13, the work efficiency will be reduced. I will not let you.

  In the above-described embodiment of the present invention, the elevator unit 1 has three bucket conveyors arranged adjacent to each other. However, the number of bucket conveyors arranged adjacent to each other can be changed as appropriate, for example, two bucket conveyors are used. It is. Further, the bucket conveyor can be changed from other lifting means having an equivalent function.

  In the above-described embodiment of the present invention, the color sorter is provided with only one primary sorting unit 20, but a plurality of primary sorting units 20 may be provided.

  In the color sorter according to the embodiment of the present invention, the elevating unit 1 is configured in a compact manner by arranging a plurality of bucket conveyors adjacent to each other, and the elevating unit 1 is arranged behind the light selecting unit 2. Thus, since the width of the front view is limited, the installation space can be reduced and the apparatus can be downsized. Moreover, since the color sorter in embodiment of this invention has arrange | positioned the vibration conveyor 3 for supplying the raw material after sorting to the raising / lowering part 1 below the optical selection part 2, the vibration conveyor 3 is arrange | positioned. It does not require new space to do.

  Needless to say, the configuration of the color sorter of the present invention is not limited to the above embodiment, and the configuration thereof can be changed as appropriate without departing from the scope of the present invention.

  In the color sorter according to the present invention, at least one tank returns the excessively supplied sorting objects to the elevator through a return passage provided in a housing that houses a plurality of elevators. Since the passage is not exposed to the outside of the sorter, it is preferable in appearance and is very useful because it can ensure the safety of the operator.

DESCRIPTION OF SYMBOLS 1 Lifting part 2 Optical selection part 3 Vibrating conveyor 11 1st bucket conveyor 12 2nd bucket conveyor 13 3rd bucket conveyor 14 Loading hopper 15 1st storage tank 16a Refined tank 16b Refined discharge basket 17 2nd storage tank 18 1st rotary valve 19 Second rotary valve 20 Primary sorting unit 21 Secondary sorting unit 22 Optical detection unit 221 Sensor 222 Mirror 223 Light source 23 Ejector 24 First chute 25 Second chute 26 First discharge rod 27 Second discharge rod 28 Third discharge rod 29 4th discharge rod 30 Trough 31 of vibration conveyor 1st rod 32 2nd rod 33 3rd rod 40 Storage tank parts 41, 42 Opening 43, 44 First return rod 51 Browsing front cover 52 Housing outer covers 53, 54 2 return rod 56 opening 57, 58 third return rod 59, 60 opening 61 first 4 return rod 63, 64 divider

Claims (3)

A lifting unit provided with a plurality of elevators corresponding to the tanks for transporting the objects to be sorted to a plurality of tanks, a transfer means for transferring the objects to be sorted stored in at least one tank, and dropping from an end of the transfer means A sorting unit that detects a sorting object to be sorted and sorts the sorting object into a non-defective product and a defective product based on the detection result,
The elevating unit is configured by housing a plurality of elevators in a housing, and includes a first elevator for conveying an object to be sorted to a first tank, and a second elevator for conveying an object to be sorted to a second tank; With
The sorting unit includes a primary sorting unit that sorts an object to be sorted transferred from the first tank, and a sorting target that is sorted into a defective product in the primary sorting unit and is transported by the second elevator and transferred from the second tank. A color sorter comprising a secondary sorting section for further sorting objects,
The first tank is configured to return an object to be sorted that is excessively supplied through a return passage provided in the housing to the first elevator.
The elevating unit further includes a third elevator for conveying a material to be sorted to be non-defective in the primary sorting unit to a third tank, and the material to be conveyed to the third tank is located on a side of the sorting machine main body. A color sorter that is discharged out of the machine from a refined waste tub that extends to A lifting unit provided with a plurality of elevators corresponding to the tanks for transporting the objects to be sorted to a plurality of tanks, a transfer means for transferring the objects to be sorted stored in at least one tank, and dropping from an end of the transfer means A sorting unit that detects a sorting object to be sorted and sorts the sorting object into a non-defective product and a defective product based on the detection result,
The elevating unit is configured by housing a plurality of elevators in a housing, and includes a first elevator for conveying an object to be sorted to a first tank, and a second elevator for conveying an object to be sorted to a second tank; With
The sorting unit includes a primary sorting unit that sorts an object to be sorted transferred from the first tank, and a sorting target that is sorted into a defective product in the primary sorting unit and is transported by the second elevator and transferred from the second tank. A color sorter comprising a secondary sorting section for further sorting objects,
The second tank is configured to return to the first elevator or the second elevator an object to be sorted that is excessively supplied through a return passage provided in the housing.
The elevating unit further includes a third elevator for conveying a material to be sorted to be non-defective in the primary sorting unit to a third tank, and the material to be conveyed to the third tank is located on a side of the sorting machine main body. A color sorter that is discharged out of the machine from a refined waste tub that extends to   3. The color according to claim 1, wherein the first elevator conveys an object to be sorted input to a sorter and an object to be sorted to be non-defective in the secondary sorting unit to the first tank. Sorting machine.

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