JP5605172B2 - Unit type color sorter - Google Patents

Description

  The present invention relates to a color sorter for granular materials, and more particularly to a unit type color sorter that can be easily installed according to the specifications of each rice mill such as a small-scale rice mill to a large-scale rice mill.

  A conventional color sorter is disclosed in Patent Document 1. This system consists of four inspection devices (units) with the same function arranged in the horizontal direction in the inspection system, and all four units are operated by the console installed in one of these units. (See paragraph 0036).

  However, in the above conventional color sorter, when installing in each rice mill such as a small-scale rice mill to a large-scale rice mill, one unit is arranged on the site according to the design drawing. However, there is a problem in that materials used for piping and the like are easily wasted, and the cost is increased due to the complexity of work.

JP 2000-097866 A

  In view of the above problems, the present invention has a technical problem to provide a unit-type color sorter that is easy to install without waste in materials used for piping and the like when a plurality of color sorters are installed in a rice mill. To do.

In order to solve the above-mentioned problems, the present invention provides a sorting unit group in which a number of sorting units are integrally connected in the lateral direction, and is connected to the upper part of the sorting unit group, and supplies the sorting unit to the raw materials to be sorted. A unit-type color comprising: an upper unit for connecting to the lower part of the sorting unit group; and a lower unit for collecting the sorting products optically sorted by each sorting unit and transporting them appropriately to the next process In the sorting machine , the sorting unit includes a chute that is inclined to flow down the sorting object, a front-side optical detection unit that is arranged on the front side of the falling trace of the sorting object that falls from the lower end of the chute, and the downflow trace. The back side optical detection means arranged on the side facing the front side optical detection means across the surface, and foreign matter or defective products from the object to be sorted based on the detection result by these optical detection means And ejector means that support the lower portion of the front optical detection means so as to be pivotable upwardly, and a hinge for connecting to the back optical detection means in its upper part, it took technical means of.

  According to the invention of claim 2, in the upper unit, there are a plurality of raw material tanks corresponding to each sorting unit, and a plurality of raw material supply devices that respectively connect the plurality of raw material tanks and the respective sorting units. In addition, a distribution-type lateral conveyance device for distributing and conveying the raw material to be sorted into each raw material tank is provided.

  According to a third aspect of the present invention, the lower unit is provided with a plurality of non-defective product discharge tubs and a plurality of defective product discharge tubs corresponding to the respective selection units of the selection unit group. The baskets are connected to the horizontal transport device for non-defective products so that the primary non-defective products are collected and discharged outside the machine, while the plurality of defective product discharge baskets collect the primary defective products and supply them to the secondary sorting unit. Each of them is connected to a lateral conveyance device for defective products.

  According to a fourth aspect of the present invention, each sorting unit is formed to be removable from the sorting unit group individually.

According to the fifth aspect of the present invention, the reflector for securing the light quantity at the outer end portion of the chute is provided on the inner surface of the cover side wall where the respective light sources of the front side optical detection means and the back side optical detection means are arranged. It is attached.

According to the present invention, a sorting unit group in which a plurality of sorting units are integrally connected in the lateral direction, and an upper part connected to the upper part of the sorting unit group for supplying a raw material to be sorted to each sorting unit. A unit-type color sorter that includes a unit and a lower unit that is connected to the lower part of the sorting unit group and collects the sorting items optically sorted by each sorting unit and appropriately transports them to the next process. Therefore, piping and the like are installed in the upper unit and the lower unit, and when installing the color sorter in the rice mill, the piping work at the site can be omitted and the installation becomes easy. The sorting unit includes a chute that is inclined to allow the material to be sorted to flow down, a front-side optical detection unit that is disposed on the front side of the flow trajectory of the material to be sorted falling from the lower end of the chute, and the flow trajectory between The back side optical detection means arranged on the side facing the front side optical detection means, the ejector means for removing foreign matters or defective products from the selection object based on the detection result by these optical detection means, and the lower part of the front side optical detection means Is provided with a hinge for connecting to the back side optical detection means at an upper portion thereof so that the front side optical detection means can be rotated upward, so that an object to be sorted is provided. The space where the water flows down can be easily opened, and the inside can be exposed to easily remove dust, etc. adhering and accumulating on the chute, optical detector, and ejector. That.

  According to a second aspect of the present invention, a plurality of raw material tanks corresponding to each sorting unit, and a plurality of raw material supplies that respectively connect the plurality of raw material tanks and the respective sorting units are provided in the upper unit. Since the apparatus and the distribution-type lateral conveyance device for distributing and conveying the raw material to be selected for each raw material tank are provided, these members to be used use those having predetermined dimensions. Therefore, arrangements can be made quickly and waste of materials such as piping can be eliminated.

  According to the third aspect of the present invention, a plurality of non-defective product discharge basins and a plurality of defective product discharge basins corresponding to each sorting unit of the sorting unit group are provided in the lower unit, and the plurality of non-defective product discharges are provided. The baskets are connected to the horizontal transport device for non-defective products so that the primary non-defective products are collected and discharged outside the machine, while the plurality of defective product discharge baskets collect the primary defective products and supply them to the secondary sorting unit. The primary good products optically sorted by each sorting unit are collected and discharged outside the machine, and optically sorted by each sorting unit. The sorted primary defective products can be collected and supplied to the secondary sorting section. In addition, the width of the lower unit, such as width, depth, height, etc., is set to standardize as a predetermined value according to the ease of installation in the rice mill, making it easy and short to install the unit type color sorter. Work ends in time.

  Furthermore, in the invention according to claim 4, since each sorting unit is formed so as to be detachable from the sorting unit group, if a certain sorting unit fails, it is replaced with an alternative sorting unit. Since the repair is completed only by this, the maintenance is extremely excellent.

According to a fifth aspect of the present invention, there is provided a reflector for securing a light quantity at an outer end portion of the chute on the inner surface of the cover side wall where the respective light sources of the front side optical detection means and the back side optical detection means are arranged. Since it is attached, the amount of light at the end in the width direction of the chute can be secured, and the apparatus can be downsized by narrowing the width of the body of the sorting unit.

It is a whole front view of the unit type color sorter of the present invention. It is a schematic sectional side view which shows the internal structure of an upper unit. It is a schematic sectional side view which shows the internal structure of a lower unit. It is a whole perspective view of the unit type color sorter of the present invention. It is explanatory drawing of the internal structure of the selection unit of the unit type color sorter of the present invention. It is a perspective view of the state where the front side optical detection part of the selection unit was rotated.

  A mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 is an overall front view of a unit type color sorter of the present invention, FIG. 2 is a schematic side sectional view showing an internal structure of an upper unit, and FIG. 3 is a schematic side sectional view showing an internal structure of a lower unit. FIG. 4 is an overall perspective view of the unit type color sorter of the present invention.

  As shown in FIGS. 1 and 4, the unit type color sorter 1 according to the present embodiment is formed with a width direction of about 300 mm to 500 mm, a height direction of about 500 mm to 700 mm, and a depth direction of about 500 mm to 800 mm. A plurality of small sorting units 2 in the horizontal direction (in FIG. 1, from the left end to the fifth one are formed as sorting units 2a, 2b, 2c, 2d, and 2e for primary sorting, and one at the right end is the secondary sorting. A sorting unit group 3 arranged in parallel and connected together, and an upper unit connected to the upper part of the sorting unit group 3 for supplying raw materials to each sorting unit 2 4 and a lower unit 5 connected to the lower part of the sorting unit group 3 and appropriately transporting the sorting items sorted by each sorting unit 2 constitutes a main part. Further, on both sides of the unit-type color sorter 1, there are a raw material elevator 20 for lifting the raw material and a secondary sorting elevator 21 for lifting the defective product taken out in the primary sorting. Is attached.

As shown in FIG. 2, in the upper unit 4, a plurality of raw material tanks 6 corresponding to the respective sorting units 2 of the sorting unit group 3, the plurality of raw material tanks 6 and the respective sorting units 2 are provided. There are provided a plurality of raw material supply devices 7 that communicate with each other. A distribution-type lateral feeding and conveying device for distributing and conveying the raw material sent from the previous process to each of the raw material tanks 6 above the plurality of raw material tanks 6 corresponding to the sorting units 2a to 2e for primary sorting. 8 is provided.
The distribution-type lateral conveyance device 8 includes a cylindrical casing 9, a screw shaft 12 whose one end is supported by a bearing 10 and whose other end is driven to rotate inside the cylindrical casing 9 by a driving device 11, A spiral screw blade 13 pivotally attached to the screw shaft 12, a raw material supply port 14 provided on the upstream side of the cylindrical casing 9, a plurality of distribution discharge ports 15 provided on the bottom side of the cylindrical casing 9, It comprises a plurality of dampers 16 capable of adjusting the opening area of each opening of the plurality of distribution outlets 15. With this configuration, the raw materials sent from the previous process are distributed and conveyed to the respective raw material tanks 6 so that the sorting in each sorting unit 2 can be processed in parallel. In addition, the distribution-type lateral conveyance device 8 is not limited to this configuration. For example, a rotating vehicle is supported on both ends of the casing, and a conveyor belt with a protrusion is wound between the two rotational vehicles. A so-called flow conveyor may be used.

  A re-sorted product supply port 17 is provided above the raw material tank 6 corresponding to the sorting unit 2f for secondary sorting. With this configuration, what is taken out as a defective product in the sorting units 2a to 2e for primary sorting is re-sorted by the sorting unit 2f for secondary sorting.

As shown in FIG. 3, a plurality of non-defective product discharge rods 18 and defective product discharge rods 19 corresponding to the respective sorting units 2 of the sorting unit group 3 are provided in the lower unit 5, respectively. Each non-defective product discharge rod 18 is connected to a non-defective product lateral conveyance device 22, and each defective product discharge rod 19 is connected to a defective product horizontal conveyance device 23.
The non-defective product horizontal transfer device 22 is formed by a known transfer device including a casing 24 and a screw conveyor 25 housed in the casing 24. An outlet 26 is connected. Similarly, the lateral conveyance device 23 for defective products is formed by a well-known conveyance device including a casing 27 and a screw conveyor 28 built in the casing 27, and the terminal side of the conveyance device 23 is subjected to secondary sorting by a communication pipe 29. Connected to the elevator 21. A secondary defective product discharge port 30 for discharging secondary defective products is provided from the sorting unit 2f for secondary sorting.

  The external appearance of the lower unit 5 is formed in a casing having a predetermined width W, depth L, and height H installed on a pedestal 31 as shown in FIG. 4. On the lower unit 5, the sorting units 2a and 2b are formed. 2c, 2d, 2e, and 2f are arranged in alignment. The width W, depth L, height H, and the like of the lower unit 5 are preferably set with standardization as predetermined values in accordance with the ease of installation in the rice mill. A supporting member 32 extending vertically from the lower unit is provided on the rear surface of each sorting unit 2... So that each sorting unit 2 is detachably supported. And the upper unit 4 formed in the housing | casing which has the predetermined width W, depth l, and height h is installed in the upper part of the supporting member 32. FIG. Even in the upper unit 4, the width W, depth l, height h, and the like are preferably set as standardized values in accordance with the ease of installation in the rice mill.

  Next, the structure of each sorting unit 2 will be described with reference to FIGS.

  FIG. 5 is an explanatory view of the vicinity of the optical detection unit of the sorting unit 2, and FIG. 6 is a perspective view showing a state in which the optical detection unit is rotated upward. As shown in FIG. 4, the sorting unit 2 includes a chute 40 that causes the sorting object to flow down from the raw material supply device 7, and a front-side optical detection unit 41 that is provided at a position along the dropping trajectory of the sorting object that falls from the chute 40. And the back side optical detector 42, the ejector means 43 for removing defective products from the normal object to be sorted by being provided below the optical detectors 41 and 42, and the ejector means 43. A non-defective product collecting unit 44 that collects non-defective products without receiving the ejecting action of the ejector unit 43, and a defective product collecting unit 45 that receives the rejecting action of the ejector unit 43 on the object to be sorted and collects defective particles. ing.

As shown in FIG. 6, the front-side optical detection unit 41 is provided with a handle 46 on the lower side outside the front surface of the cover, and with a patchon stop fitting 47 at the lower end thereof. As shown in FIGS. 1 and 4, the patching metal fitting 47 is locked by a patching lock body 48 attached to the sorting unit 2 body side below the front-side optical detection unit 41. is there. And since the front side optical detection part 41 is connected with the back side optical detection part 42 of the main body side by a pair of left and right hinges 49, the operator holds the handle 46 of the front side optical detection part 41 as shown in FIG. By gripping and removing the patching stop fitting 47 and rotating the front side optical detection unit 41 upward, the space where the raw material formed between the optical detection units 41 and 42 flows down is opened and the inside is exposed. Can be made. Thereby, by rotating the front side optical detection unit 41 upward, the space where the material to be sorted flows down can be easily opened, the inside is exposed, and the chute 40, the optical detection units 41 and 42, the ejector are exposed. Dust and the like adhering to and depositing on the means 43 can be easily removed.
Further, for example, a gas spring 50 is disposed between the front side optical detection unit 41 and the back side optical detection unit 42, and the front side optical detection unit 41 rotated upward is opened by the gas spring 50. It is configured to maintain the state. If the front-side optical detection unit 41 is supported at the open position by the gas spring 50, the front-side optical detection unit will not be closed without permission, so that a cleaning operation by an operator can be performed safely.

  Also, a shock absorber 51 is provided below the surface of the front side optical detection unit 41 that faces the back side optical detection unit 42, and the front side optical detection unit 42 is rotated downward to apply an impact when closing the space. It is configured to relax.

  As shown in FIG. 6, the chute 40 is formed on the inner surfaces of both side walls of both the cover where the illumination means (light source) is arranged in the front side optical detection unit 41 and where the light source is arranged in the back side optical detection unit 42. In order to secure the light quantity at the outer end portion, reflectors 52a and 52b each composed of a mirror or the like are attached. The reflecting mirrors 52a and 52b only need to be able to secure the light amount at the outer end of the chute 40, and other members having a mirror finish can be used in addition to the mirror. Thereby, the light quantity in the width direction edge part of the chute | shoot 40 can be ensured, and it becomes possible to narrow the width | variety of the body of the selection unit 2, and to reduce an apparatus in size.

  Hereinafter, the operation and effect of the above configuration will be described.

  First, when installing a color sorter in each rice mill such as a small-scale rice mill to a large-scale rice mill, the number of sorting units 2 required for each rice mill is determined in advance and The unit 5, the upper unit 4 and the support member 32 are manufactured.

  The members used in the upper unit 4 and the lower unit 5 such as the transporting devices 8, 22, 23 are preliminarily defined, so that arrangements can be made quickly, and piping, etc. Waste of material can be eliminated. In addition, the upper unit 4 and the lower unit 5 have dimensions such as width, depth, height, etc., set according to standardization as predetermined values in accordance with the ease of installation in a rice mill, and can be installed easily and in a short time. Is designed to finish the work.

  When the manufacture of the lower unit 5, the upper unit 4, and the support member 32 is completed, necessary power supply wiring, piping, and the like are performed according to the number of sorting units 3 to be installed.

  Then, when assembled as a unit type color sorter 1 as shown in FIG. 1 and FIG. 4, it is installed at the site of a rice mill. At the milling mill site, the lower unit 5 is placed on a pipe (not shown) for the next process that has already been constructed, and then the raw material elevator 20 and the secondary sorting elevator 21 that are incidental facilities are erected, and the pipe is passed. Installation is complete.

  Next, the operation of the unit type color sorter 1 of this embodiment will be described. As shown in FIGS. 1 and 2, the object to be sorted lifted from the raw material elevator 20 is supplied to the distribution-type lateral conveyance device 8 through the supply port 14. In this distribution-type lateral transfer device 8, first, the damper 16 in the area of the sorting unit 2a is opened, and when a certain amount of the object to be sorted is stored in the raw material tank 6 in the area of the sorting unit 2a, the closing control is performed. (A lower limit sensor may be installed in the lower part of the inner surface of the raw material tank 6 and an upper limit sensor may be installed in the upper part of the inner surface, and the damper may be controlled to open and close so that a certain amount of objects to be sorted is stored in the raw material tank 6). Hereinafter, it is preferable to sequentially distribute and supply a certain amount of objects to be sorted in each raw material tank 6 in the area of the sorting units 2b, 2c, 2d, and 2e.

  When a certain amount of objects to be sorted is stored in each raw material tank 6 in the area of the sorting units 2a, 2b, 2c, 2d, and 2e, each chute 40 is supplied at a constant flow rate through each raw material supply device 7 (see FIG. 2). To start sorting in each sorting unit 2.

  The raw material that flows down on the chute 40 is detected by the front-side optical detection unit 41 and the back-side optical detection unit 42, and the raw material that has been determined to be non-defective as a result of the detection (hereinafter referred to as “primary non-defective product”). It drops from the non-defective product discharge rod 18 (see FIG. 3) to the non-defective product horizontal conveyance device 22 via (see FIG. 5). In addition, the raw material determined to be defective (hereinafter referred to as “primary defective product”) is bounced by the ejector means 43 and passes through the defective product collecting unit 45 (see FIG. 5) to pass the defective product discharge rod 19 (FIG. 5). 3) to the defective lateral transfer device 23.

  Then, the primary non-defective product is discharged out of the machine from the non-defective product discharge port 26 at the conveyance end portion of the non-defective horizontal conveyance device 22 and reaches the next process. On the other hand, the primary defective product is laterally transported by the lateral transport device 23 for defective products and is granulated by the secondary sorting elevator 21 via the communication pipe 29 (see FIG. 3), and then passes through the re-sorted material supply port 17. It is stored in the raw material tank 6 of the sorting unit 2f for secondary sorting (see FIG. 2). The primary defective product stored in the raw material tank 6 is supplied to the chute 40 at a constant flow rate via the raw material supply device 7, and the sorting in the sorting unit 2f for secondary sorting is started.

  The raw material flowing down on the chute 40 is detected in the same manner as described above, and the raw material determined to be non-defective as a result of the detection (hereinafter referred to as “secondary non-defective product”) is discharged from the non-defective outlet 26 together with the primary non-defective product. To the next step. On the other hand, raw materials determined as defective products (hereinafter referred to as “secondary defective products”) are discharged from the secondary defective product discharge port 30 to the outside of the apparatus.

  In the sorting operation as described above, the unit type color sorter 1 of the present embodiment does not stop the sorting units 2a, 2c, 2d, 2e, and 2f even if the sorting unit 2b fails. It is possible to continue the sorting operation. That is, the sorting units 2a, 2b, 2c, 2d, 2e, and 2f are formed so as to be individually removable from the sorting unit group 3, and each sorting unit is completely independent of a power supply system, a light source, and an optical detection unit. And it becomes the structure of the ejector means. As a result, only the control for closing the damper 16 corresponding to the sorting unit 2b of the distribution type lateral transfer device 8 until the alternative sorting unit 2 for replacing the failed sorting unit 2b arrives at the rice mill. Thus, the sorting operation of the sorting units 2a, 2c, 2d, 2e, and 2f can be continued.

  As described above, according to the unit type color sorter of the embodiment of the present invention, the number of sorting units required for each rice mill is determined in advance in each rice mill such as a small-scale rice mill to a large-scale rice mill. However, since the lower unit, the upper unit and the supporting member are manufactured in the color sorter manufacturing factory, it can be easily installed in the rice mill and the man-hours can be significantly reduced. We can now offer unit-type color sorters with a high degree of freedom from factories to large-scale rice mills.

  In addition, since the members used in the upper unit and the lower unit, such as a transport device, which have predetermined dimensions are used, arrangements can be made quickly, and materials such as piping are not wasted. be able to.

  The present invention can be applied to a color sorter for granular materials.

DESCRIPTION OF SYMBOLS 1 Unit type color sorter 2 Sorting unit 3 Sorting unit group 4 Upper unit 5 Lower unit 6 Raw material tank 7 Raw material supply device 8 Distributing type transverse feed device 9 Cylindrical casing 10 Bearing 11 Drive device 12 Screw shaft 13 Screw blade 14 Supply Port 15 Distribution discharge port 16 Damper 17 Re-sorted material supply port 18 Non-defective product discharge rod 19 Defective product discharge rod 20 Raw material elevator 21 Secondary sorting elevator 22 Non-defective product horizontal transfer device 23 Defective product horizontal transfer device 24 Casing 25 Screw conveyor 26 Non-defective product outlet 27 Casing 28 Screw conveyor 29 Communication pipe 30 Secondary defective product outlet 31 Base 32 Support member 40 Chute 41 Front side optical detection unit 42 Back side optical detection unit 43 Ejector means 44 Good product recovery unit 45 Defective product recovery unit 46 Handle 47 Patchon clasp 48 Patchon lock book 49 hinge 50 gas spring 51 shock absorber 52 reflector

Claims (5)

A sorting unit group in which a plurality of sorting units are integrally connected in a lateral direction, an upper unit connected to an upper part of the sorting unit group and for supplying a raw material to be sorted to each sorting unit, and the sorting unit In a unit type color sorter connected to the lower part of the group, and having a lower unit for gathering the sorting items optically sorted by each sorting unit and transporting them appropriately to the next process ,
The sorting unit includes a chute that is inclined to allow the material to be sorted to flow down, a front-side optical detection means that is disposed on the front side of the flow trajectory of the material that falls from the lower end of the chute, Back side optical detection means arranged on the side facing the front side optical detection means, ejector means for removing foreign matters or defective products from the object to be sorted based on detection results by these optical detection means, and a lower portion of the front side optical detection means A unit-type color sorter comprising a hinge for connecting to the back side optical detection means at an upper portion thereof so as to be rotatable upward.   In the upper unit, a plurality of raw material tanks corresponding to each sorting unit, a plurality of raw material supply devices that respectively connect the plurality of raw material tanks and the respective sorting units, and a raw material to be sorted are each raw material. The unit-type color sorter according to claim 1, further comprising a distribution-type lateral conveyance device for distributing and conveying each tank.   In the lower unit, a plurality of non-defective product discharge baskets and a plurality of defective product discharge bottles corresponding to each sorting unit of the sorting unit group are provided. Each of the plurality of defective product discharge baskets collects primary defective products and supplies them to the secondary sorting unit so that each of them is connected to a defective product horizontal transfer device. The unit type color sorter according to claim 1 or 2, wherein the unit type color sorter is connected.   The unit-type color sorter according to any one of claims 1 to 3, wherein the sorting unit group is formed so that each sorting unit can be individually detached.   The unit according to claim 1, wherein the front side optical detection means and the back side optical detection means are each provided with a reflection plate for securing a light quantity at an outer end portion of the chute on an inner surface of a cover side wall where a light source is disposed. Type color sorter.

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