JP2015020140A - Sorter of pet bottle cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sorter of pet bottle caps that quickly and surely sorts them out depending upon whether or not they exceed a predetermined size.SOLUTION: A sorter of pet bottle caps is constituted of a sorting rotary disk 2 rotated in a horizontal plane, an upper cover 4 consisting of an inner tube 4a, an outer tube 4b, and an upper surface plate 4c that couples both these tubes 4a, 4b, a sorter guide member consisting of a guide plate 5 to guide the pet bottle caps F in the outer peripheral direction and a sorting plate 6 laterally provided from the guide plate 5 with the bottom face positioned at a prescribed height from the top face 2b of the sorting rotary disk 2, an inside integrated circumferential groove 9 facing an opening formed below the sorting plate 6, and outside and inside scrapers that move the pet bottle caps F dropped into an outside integrated circumferential groove 3 and the inside integrated circumferential groove 9 to exhaust ports 3a, 9a, respectively.

Description

  The present invention relates to a PET bottle cap sorting device that quickly and reliably sorts PET bottle caps according to whether or not they are smaller than a predetermined size.

In recent years, a cap recovery business for plastic bottles has been actively conducted for the purpose of reusing plastic resources and suppressing CO ₂ generated when incinerated.

  Such caps for PET bottles are often melted and recycled as resin materials. However, when caps for PET bottles with different colors are melted together, the colors of the recycled resin materials are not stable, which is very There is a problem that it becomes an unusable resin material.

  For such a problem, it is provided with a judgment means for judging the color of the cap of the container, and an identification means for identifying the color of the cap based on the result obtained thereby. Based on the color of the cap There is a sorting device for sorting caps (see, for example, Patent Document 1).

  Moreover, the cap for PET bottles is made of polypropylene (PP) or polyethylene (PE), and when these different types of caps are melted together, there is a problem that the properties of the regenerated resin material are not stable.

  For such a problem, supply means for sequentially supplying the PET bottle caps in a line with the front or back facing upward, and the caps supplied by the supply means are aligned in a line as they are. Transport means for transporting the cap, a material detection means for detecting the material of the cap from the side or the angle of the cap, a color detection means for detecting the color of the cap from the side or the angle of the cap, and the passage of the cap And a passage detection means for detecting air, and an injection nozzle for injecting air from the side or obliquely in a direction intersecting the transport direction by the transport means, the material detection means, the color detection means, and the passage detection According to the detection result of the means, air is injected from the injection nozzle, and the key of the material and color corresponding to the detection result of the material detection means and the color detection means. There is a PET bottle cap sorting device comprising: a sorting means for dropping a cup; and a collecting means for collecting the cap dropped by the sorting means for each material and color (for example, see Patent Document 2). ).

  If each device as described above is used, it becomes possible to sort the caps for PET bottles according to their colors and materials. However, there is no clear standard for the caps for PET bottles, and there are various sizes. There is a problem that there is a cap of this size, and when caps with large diameters are sent to each device, the caps overlap each other, and the accuracy of sorting by color and sorting by material is greatly impaired There is a problem, and it is important to sort to some extent according to the size of the cap for the PET bottle as a step before using the above-described sorting apparatus based on the color and material.

JP 2011-16040 A JP 2012-139650 A

  In view of the above problems, an object of the present invention is to provide a PET bottle cap sorting device that sorts a PET bottle cap quickly and reliably depending on whether or not the cap has a predetermined size or less.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have selected a cap having a small diameter and a cap having a large diameter among the caps for PET bottles. Caps with a small diameter are also low in height, so if you select the caps according to the height of the caps, you can easily select caps with greatly different diameters, and send the selected caps to a sorting device based on colors and materials. However, it is possible to reliably sort the caps without overlapping each other. Specifically, in the PET bottle cap sorting device, it is installed on the top surface of the leg base. The height of the PET bottle cap with the highest height from the upper surface to the lower end of the rotating disc for rotation rotated in a horizontal plane by the drive unit An inner cylinder positioned higher and lower than its diameter, and an outer cylinder provided on the outer side of the outer circumferential circumferential groove fixed to the footrest below the outer periphery of the sorting rotary disk, The upper cover is composed of a top plate that connects these two cylinders, and the upper cover that forms the cap insertion path for the PET bottle for sorting into the center of the upper surface of the sorting rotating disk is supported and fixed to the leg stand. In the rotational direction of the sorting rotary disk for guiding the PET bottle cap that has passed between the upper surface of the sorting rotary disk and the lower end of the inner cylinder of the upper cover to the outer circumferential direction on the upper surface of the sorting rotary disk From a guide plate erected in the deflected direction, and a sorting plate that is horizontally provided from the guide plate in the rotational direction of the sorting rotary disk and whose lower surface is positioned at a predetermined height from the upper surface of the sorting rotary disk. The sorting guide member Provided with a guide path that is wider than the outer diameter of the PET bottle cap having the largest outer diameter between the edge of the sorting plate of the sorting guide member that comes into contact with the guide plate, and on the circumferential side of the sorting rotary disk A notch opening is formed in a portion of the sorting guide member positioned below the sorting plate, and an inner integrated circumferential groove is installed on the leg base on the lower surface facing the opening, and further, a sorting rotation is performed. An outer scraper that moves the caps for PET bottles that have fallen into the outer integrated circumferential groove and the inner integrated circumferential groove to the respective outlets of the outer integrated circumferential groove and the inner integrated circumferential groove on the outer and lower surfaces of the disk. If the scraper for the inside is installed, the rotating disc for sorting, into which the used PET bottle caps are sequentially inserted, is rotated, and the centrifugal force is used to reduce the predetermined height and the predetermined height. Beyond It was clarified that the PET bottle cap can be sorted very quickly and reliably based on a predetermined size, and that the PET bottle cap can be easily and reliably collected after sorting. Thus, the present invention has been completed.

That is, the present invention provides a PET bottle cap having the highest height from the upper surface to the lower end of the sorting rotary disk installed on the upper surface of the platform and rotated in a horizontal plane by a driving device in the platform. An inner cylinder positioned at a position higher than the height and lower than its diameter, and an outer cylinder provided on the outer side of the outer integrated circumferential groove fixed to the footrest below the outer periphery of the rotating disc for sorting. The top cover is composed of a top plate that connects these two cylinders, and the inner cover is supported by the leg base, which forms the cap feeding path for the PET bottle for sorting into the center of the top surface of the sorting rotary disk. Fixed,
The upper surface of the sorting rotary disk is deflected in the rotational direction of the sorting rotary disk for guiding the PET bottle cap that has passed between the upper surface of the sorting rotary disk and the lower end of the inner cylinder of the upper cover in the outer circumferential direction. The guide plate is erected in the direction in which it is made to move, and the sorting plate is installed horizontally from the guide plate in the rotational direction of the sorting rotary disk and the lower surface is positioned at a predetermined height from the upper surface of the sorting rotary disk. The sorting guide member is provided to form a guide path that is wider than the outer diameter of the PET bottle cap having the largest outer diameter, and the distance between the end of the sorting plate of the adjacent sorting guide member and the guide plate is the largest.
And the opening part by which the part located in the lower part of the sorting plate of a sorting guide member is notched is formed in the circumference side of the rotating disk for sorting,
On the lower surface facing the opening, an inner integrated circumferential groove is installed on the footrest,
Further, on the outer and lower surfaces of the rotating disc for sorting, the caps for PET bottles that have fallen into the outer and inner circumferential grooves are moved to the respective outlets of the outer and inner circumferential grooves. A PET bottle cap sorting device comprising an outer scraper and an inner scraper installed.

  In addition, each guide plate is continuously sorted from the center side of the sorting rotary disk at the outer peripheral portion erected in the direction deflected in the rotation direction of the sorting rotary disk toward the center of the sorting rotary disk. If the guide plate further has an inner peripheral side portion formed along the radial direction of the rotating disc for the plastic bottle, the cap for the PET bottle is sorted by the inner peripheral side portion formed along the radial direction of the rotating disc for sorting. It is preferable that the PET bottle cap can be reliably selected on the outer peripheral side of the rotating disk that is smoothly fed toward the outer peripheral direction and then erected in the direction deflected in the rotational direction. If an agitating rod for agitating the cap for a plastic bottle that has been put in is projected on the inner surface of the inner cylinder toward the center of the rotating disc for sorting, the caps can be easily overlapped or clogged. Preferably, the air blow device for blowing air to the guide path on the sorting rotary disk to prevent clogging is provided on the upper cover toward the center of the sorting rotary disk and / or the sorting rotary disk. A sensor that is fixed toward the outer periphery and that activates or deactivates the air blower according to the amount of PET bottle caps deposited in the cap cover for the PET bottle caps for sorting on the upper cover. If it is provided in the cap insertion path, clogging can be detected automatically and easily eliminated, and if a conical dispersion table is further installed in the center of the upper surface of the sorting rotary disk, sorting is possible. Centrifugal force does not act on the PET bottle cap that has been put in the center of the rotating disk for use, but such a PET bottle cap can be quickly and evenly distributed in each direction. It is Preferred to be able to make the allowed centrifugal force acts in.

The PET bottle cap sorting apparatus according to the present invention has the highest height from the upper surface of the sorting rotating disk installed on the upper surface of the footrest and rotated in the horizontal plane by the driving device in the footrest to the lower end thereof. The inner cylinder positioned higher than the height of the high-cap PET bottle cap and lower than its diameter, and the outside of the outer integrated circumferential groove fixed to the platform under the outer periphery of the sorting rotary disk And an upper plate connecting the two cylinders, and the inside of the inner cylinder forms a cap feeding path for the PET bottle for sorting into the center of the upper surface of the rotating disc for sorting. Since the upper cover is supported and fixed to the base, the used PET bottle caps with different sizes inserted into the PET bottle cap input path for sorting are in a state in which the caps overlap or lie down. Because I until condition is cleared not sorted can not pass between the upper surface of the sorting rotating disk and the lower end of the inner cylinder of the upper cover, it can be sorted reliably by their size,
In addition, on the upper surface of the sorting rotary disk, in the rotation direction of the sorting rotary disk for guiding the PET bottle cap that has passed between the upper surface of the sorting rotary disk and the lower end of the inner cylinder of the upper cover in the outer circumferential direction. From a guide plate erected in the deflected direction, and a sorting plate that is horizontally provided from the guide plate in the rotational direction of the sorting rotary disk and whose lower surface is positioned at a predetermined height from the upper surface of the sorting rotary disk. The separation guide member is formed such that the gap between the edge of the selection plate of the adjacent selection guide member and the guide plate forms a guide path wider than the outer diameter of the PET bottle cap having the largest outer diameter, and On the circumferential side of the sorting rotary disk, there are formed openings in which portions located below the sorting plate of the sorting guide member are cut out, and on the lower surface facing the opening, there is an inner integrated circumferential groove. But Since it is installed on a table, the cap for PET bottles with a large height (large diameter) passes through the guide path by the centrifugal force of the sorting rotating disk and is fixed to the outer periphery of the sorting rotating disk. The cap for PET bottles, which is dropped into the circumferential groove and has a height lower than a predetermined height (small diameter), is squeezed into the bottom of the sorting plate installed on the guide plate by the sorting guide member, By being dropped into the inner circumferential groove from the opening, it is possible to sort out the caps for PET bottles very quickly and reliably.
Further, on the outer and lower surfaces of the rotating disc for sorting, the caps for PET bottles that have fallen into the outer and inner circumferential grooves are moved to the respective outlets of the outer and inner circumferential grooves. Since the outer scraper and the inner scraper are installed, the PET bottle cap after sorting can be easily and reliably collected.

  In addition, each guide plate is continuously sorted from the center side of the sorting rotary disk at the outer peripheral portion erected in the direction deflected in the rotation direction of the sorting rotary disk toward the center of the sorting rotary disk. In the aspect of the guide plate further including the inner peripheral side portion formed along the radial direction of the rotary disk for use, the cap for the PET bottle is formed by the inner peripheral side portion formed along the radial direction of the rotary disk for sorting. It is preferable that the PET bottle cap can be reliably sorted on the outer peripheral side of the rotating disc that is smoothly fed toward the outer peripheral direction and then erected in the direction deflected in the rotational direction. In the aspect in which the stirring rod for stirring the cap for the PET bottle that has been put in is projected on the inner surface of the inner cylinder toward the center of the rotating disc for sorting, The air blow device for preventing clogging by blowing air to the guide path on the sorting rotating disk is preferable because it can easily eliminate clogging, and is directed to the upper cover toward the center of the sorting rotating disk and / or sorting. A sensor that activates or stops the air blower according to the amount of PET bottle cap deposited in the PET bottle cap input passage of the upper cover is fixed. It is preferable that the clogging is automatically detected and easily eliminated in the aspect provided in the cap feeding path for the plastic bottle for use, and a conical dispersion table is further installed at the center of the rotating disc for sorting. For example, the centrifugal cap does not act very much on the cap for PET bottles placed in the center of the sorting rotary disk. It is Preferred to be able to make the centrifugal force acts by evenly distributed.

It is one Example of the sorting device of the cap for PET bottles which concerns on this invention, and is a top view which shows the state which removed the upper cover. It is a top view which shows the state which attached the upper cover to the sorting apparatus of the cap for PET bottles shown in FIG. It is the AA sectional view explanatory drawing in FIG. 2 of the sorting device of the cap for PET bottles. FIG. 6 is a plan view showing another embodiment of the PET bottle cap sorting apparatus according to the present invention with the upper cover removed.

  Hereinafter, the PET bottle cap sorting apparatus according to the present invention will be described in detail with reference to the drawings.

  F is a used PET bottle cap which is put into the PET bottle cap sorting device according to the present invention and sorted, and among these PET bottle caps F, Fa is the tallest PET bottle cap. Fb is the cap for PET bottles with the largest outer diameter.

  Reference numeral 1 denotes a pedestal. Reference numeral 2 denotes a sorting rotary disk installed on the upper surface of the pedestal 1 and rotated in a horizontal plane by a driving device 2a in the pedestal 1. If a conical dispersion table 2c is installed at the center of the top surface 2b of the sorting rotary disk 2, the centrifugal force does not act so much on the cap F for the plastic bottle introduced into the center of the sorting rotary disk 2. However, it is preferable that such a PET bottle cap F can be quickly and uniformly dispersed in each direction so that the centrifugal force can work.

  4 is an inner cylinder 4a positioned at a position where the height from the upper surface 2b of the rotary disc 2 to the lower end 4aa thereof is higher than the height of the tallest bottle cap Fa and lower than its diameter. The outer cylinder 4b provided on the outer side of the outer integrated circumferential groove 3 fixed to the base 1 below the outer periphery of the rotary disk 2 for sorting, and the upper plate 4c for connecting these cylinders 4a and 4b. The inner cylinder 4a is an upper cover that forms a cap insertion path 4ab for the PET bottle for sorting into the center of the upper surface of the sorting rotary disk. The upper cover 4 is supported by the footrest 1 It is fixed. The inner cylinder 4a may have a configuration in which cylinders are stacked in a concentric manner, and in this case, the innermost cylinder is located inside the plastic bottle cap charging path 4ab to be sorted. Play a role. Further, in such an aspect in which the cylinders are stacked in layers, the PET bottle having the highest height from the upper surface 2b to the lower end of the rotating disc 2 for sorting the outermost cylinders at least. It is only necessary to be positioned higher than the height of the cap Fa and lower than its diameter, and the height from the upper surface 2b to the lower end of the rotary disc 2 for sorting other cylinders is the outermost cylinder. Same as or higher than

  5 is a deflection in the rotation direction of the sorting rotary disk 2 for guiding the PET bottle cap F that has passed between the upper surface 2b of the sorting rotary disk 2 and the lower end 4aa of the inner cylinder 4a of the upper cover 4 in the outer circumferential direction. It is a guide plate that is erected in the direction in which it is moved. These guide plates 5,... From the center side of the sorting rotary disk of the outer peripheral portion 5 a erected in the direction deflected in the rotational direction of the sorting rotary disk 2 to the center of the sorting rotary disk 2. If the guide plate further has an inner peripheral side portion 5b formed along the radial direction of the sorting rotary disk 2, the inner circumference formed along the radial direction of the sorting rotary disk 2 By the side portion 5b, the PET bottle cap F is smoothly fed out toward the outer circumferential direction of the sorting rotary disk 2, and then, on the outer circumferential side portion 5a erected in the direction deflected in the rotational direction, This is preferable because the cap F can be reliably selected.

  Reference numeral 6 denotes a sorting plate which is provided horizontally from the guide plate 5 in the rotating direction of the sorting rotary disk 2 and whose lower surface is positioned at a predetermined height from the upper surface 2b of the sorting rotary disk 2. Reference numeral 7 denotes a sorting guide member composed of a guide plate 5 and a sorting plate 6, and this sorting guide member 7 is arranged on the upper surface 2 b of the sorting rotary disk 2 with the end of the sorting plate 6 of the adjacent sorting guide member 7. A guide path 2d is formed so that the distance from the guide plate 5 is wider than the outer diameter of the PET bottle cap Fb having the largest outer diameter.

  Reference numeral 8 denotes an opening in which the circumferential side of the sorting rotary disk 2 in the portion located below the sorting plate 6 of the sorting guide member 7 is cut out, and 9 denotes an inner integrated circumferential groove, and this inner integrated circumferential groove. The groove 9 is installed on the leg stand 1 on the lower surface side facing the opening 8.

  Reference numerals 10 and 11 respectively denote an outer integrated circumferential groove 3 and a cap F for a PET bottle that has fallen inside the outer integrated circumferential groove 3 and the inner integrated circumferential groove 9 provided on the outer and lower surfaces of the sorting rotary disk 2, respectively. And an outer scraper and an inner scraper that are moved to the respective discharge ports 3a, 9a of the inner circumferential groove 9. The outer scraper 10 may be extended from the sorting plate 6 or directly fixed to the outer periphery of the sorting rotary disk 2.

  Reference numeral 12 denotes an agitation rod for agitating the charged plastic bottle cap F, and is provided on the inner surface of the inner cylinder 4 a of the upper cover 4 so as to project toward the center of the sorting rotary disk 2. The stirring rod 12 is preferable because it can easily eliminate the overlap and clogging between the PET bottle caps F, F.

  Reference numeral 13 denotes an air blow device for preventing clogging by blowing air onto the guide path 2d on the sorting rotary disk 2. This air blow device 13 is directed to the upper cover 4 toward the center of the sorting rotary disc 2. In addition, the air blowing device 13 is fixed in the outer peripheral direction of the sorting rotary disk 2 and is in accordance with the amount of the PET bottle cap F accumulated in the sorting PET bottle cap charging path 4ab of the upper cover 4. A sensor 13a for operating or stopping is provided in the to-be-sorted PET bottle cap charging path 4ab.

  The specific method of using the PET bottle cap sorting apparatus according to the present invention will be described in detail. First, the used PET bottle cap F having various sizes is a predetermined reference serving as a sorting reference. For the PET bottle according to the present invention, in which the position of the sorting plate 6 is determined on the basis of the height of the guide plate 5 and fixed in the direction of rotation of the rotating disc 2 for sorting of the guide plate 5. Prepare a cap sorter.

  Then, with the sorting disk 2 rotated by the driving device 2a, the different sizes of the used plastic bottle cap loading path 4ab in the inner cylinder 4a of the upper cover 4 are used as shown in FIG. Insert the plastic bottle cap F. At this time, as shown in FIG. 3, if a conical dispersion table 2c is further installed at the center of the sorting rotary disk 2, the PET bottle cap F is evenly distributed in each direction on the conical distribution table 2c. It is done.

  The used plastic bottle caps F that have been put in this way are in an overlapped state or lying down (a part of the cylindrical outer peripheral surface of the plastic bottle cap F is the top surface 2b of the sorting rotary disk 2). In the state of being in contact with the top), the PET bottle cap F cannot be accurately selected. Therefore, the height from the upper surface 2b of the sorting rotary disk 2 to the lower end 4aa of the inner cylinder 4a of the upper cover 4 is the highest so that such a PET bottle cap F is not fed into the sorting guide member 7. It is positioned at a position higher than the height of the high-cap PET bottle cap Fa and lower than its diameter. That is, the overlapped state of the PET bottle cap F is eliminated or the cover is turned down (the cylindrical outer peripheral surface of the PET bottle cap F is not in contact with the upper surface 2b of the sorting rotary disk 2). After that, it is sent to the sorting guide member 7 by centrifugal force so as to be sorted.

  In addition, the state in which the plastic bottle cap F is overlapped or laid down (a part of the cylindrical outer peripheral surface of the plastic bottle cap F is in contact with the upper surface 2b of the sorting rotary disk 2) is more As shown in FIG. 2, in order to resolve quickly and to be in a face-down state (a state where the cylindrical outer peripheral surface of the PET bottle cap F is not in contact with the upper surface 2b of the sorting rotary disk 2) If a stirring rod 12 for stirring the charged plastic bottle cap F is projected from the inner cylinder 4a of the upper cover 4 toward the center of the sorting rotary disk 2, the PET bottle cap F, It is preferable that the overlap between the Fs can be easily eliminated and the clogging with the PET bottle cap F which cannot pass through is less likely to occur, and the sorting operation can be performed quickly.

  Further, the upper cover 4 has an outer cylinder 4b, a cover 4b, and the like so as to cover the sorting guide member 7 and the like so that the plastic bottle cap F before sorting does not directly flow into the sorting guide member 7 and the outer circumferential circumferential groove 3 and the like. Since the upper surface plate 4c for connecting the upper portions of the inner cylinder 4a and the outer cylinder 4b is provided, the introduced PET bottle cap F is inserted through only the inner cylinder 4a.

  The plastic bottle caps F of different sizes thus introduced are moved in the radial direction of the sorting rotary disk 2 by centrifugal force and are in a face-down state (the cylindrical outer periphery of the plastic bottle cap F). The surface passes between the lower end 4aa of the inner cylinder 4a of the upper cover 4 and the upper surface 2b of the sorting rotary disk 2 to the sorting guide member 7 in a state where the surface is not in contact with the upper surface 2b of the sorting rotary disk 2). To go.

  The sorting guide member 7 is composed of a guide plate 5 and a sorting plate 6 which is laterally provided from the guide plate 5 and whose lower surface is positioned at a predetermined height from the upper surface 2b of the sorting rotary disk 2. The guide plate 5 (outer peripheral portion 5 a) is erected in a direction deflected from the radial direction of the sorting rotary disk 2 to the rotational direction of the sorting rotary disk 2, and the sorting plate 6 is also rotated from the guide plate 5 for sorting. Since the disk 2 is horizontally arranged in the rotational direction, the PET bottle cap F which is going to move in the radial direction of the sorting rotary disk 2 by centrifugal force always comes into contact with the sorting guide member 7 somewhere.

  That is, the PET bottle cap F which is about to move in the radial direction of the sorting rotary disk 2 by centrifugal force gradually moves with respect to the sorting plate 6 of any sorting guide member 7 provided in the deflected direction. It moves toward the outer circumference while approaching.

  At this time, since the lower surface of the sorting plate 6 is positioned at a predetermined height from the upper surface 2b of the sorting rotating disk 2, the PET bottle cap F having a predetermined height or less determined first is any sorting guide. Gradually approach the member 7 and move so as to sink under the sorting plate 6, and finally the portion of the sorting guide member 7 positioned below the sorting plate 6 for the sorting rotary disk 2. From the opening 8 formed on the circumferential side of the pedestal, it falls and accumulates on the inner integrated circumferential groove 9 installed on the leg stand 1.

  Since the cap F for a PET bottle whose height is higher than the predetermined height determined at the beginning cannot enter under the sorting plate 6, the end of the sorting plate 6 of the adjacent sorting guide member 7 and the guide plate 5 The outer integrated circle is moved to the outside of the sorting rotary disk 2 by centrifugal force through the guide path 2d formed between them and discharged and fixed to the pedestal 1 below the outer periphery of the sorting rotary disk 2 It falls into the circumferential groove 3 and accumulates.

  In order to perform the sorting by the sorting guide member 7 more smoothly, the guide plates 5,... Sort the outer peripheral portion 5 a erected in the direction deflected in the rotation direction of the sorting rotary disk 2. If the guide plate further has an inner peripheral portion 5b formed along the radial direction of the sorting rotary disk 2 continuously from the center side of the sorting rotary disk 2 toward the center of the sorting rotary disk 2 The PET bottle cap F is smoothly fed toward the outer peripheral direction of the sorting rotary disk 2 by the inner peripheral side portion 5b formed along the radial direction of the sorting rotary disk 2, and then deflected in the rotational direction. It is preferable that the cap F for PET bottles can be reliably selected on the outer peripheral side portion 5a side that is erected in the direction in which it is placed.

  In addition, when clogging occurs in the guide path 2d on the sorting rotary disk 2, the PET bottle caps F that are sequentially put in are gradually accumulated in the PET bottle cap feeding path 4ab to be sorted in the upper cover 4. The air blow device 13 for blowing air on the guide path 2d on the sorting rotary disk 2 to prevent clogging is applied to the upper cover 4 toward the center of the sorting rotary disk 2 and / or the sorting rotation. A sensor 13a that is fixed toward the outer peripheral direction of the disk 2 and that activates or stops the air blow device 13 according to the amount of the PET bottle cap F accumulated in the PET bottle cap insertion path 4ab for sorting in the upper cover 4 is provided. It is preferable to provide in the PET bottle cap insertion path 4ab for sorting because clogging can be automatically detected and easily eliminated.

  Among the PET bottle caps F sorted by the sorting guide member 7 in this way, the PET bottle caps F having a predetermined height or less that are initially determined are placed in the inner integrated circumferential groove 9 from the predetermined height that is initially determined. Since the high PET bottle caps F accumulate in the outer circumferential circumferential grooves 3, respectively, the outer scraper 10 and the inner scraper 11 installed on the sorting rotary disk 2 using the rotating sorting disc 2 are rotated. Thus, the PET bottle caps F in the grooves 3 and 9 are scraped and discharged from the discharge ports 3a and 9a.

  In this way, after sorting according to the size of the PET bottle cap F, if the PET bottle cap F is sent to a device that sorts the PET bottle cap F according to its color and material, The bottle caps F do not overlap with each other, and sorting by color or sorting by material can be performed with high accuracy.

1 leg stand 2 rotating disc for sorting
2a Drive unit
2b Top view
2c Conical dispersion table
2d Guideway 3 Outer circumferential circumferential groove
3a Discharge port 4 Top cover
4a inner cylinder
4aa Bottom
4ab PET bottle cap input path for sorting
4b outer cylinder
4c Top plate 5 Guide plate
5a Outer peripheral part
5b Inner peripheral side part 6 Sorting plate 7 Sorting guide member 8 Opening 9 Inner integrated circumferential groove
9a Discharge port 10, 11 Scraper 12 Stir bar 13 Air blow device
13a Sensor F Plastic bottle cap
Fa tallest bottle cap
Fb PET bottle cap with the largest outer diameter

Claims (5)

From the upper surface (2b) to the lower end (4aa) of the rotating disc for sorting (2) installed on the upper surface of the footrest (1) and rotated in the horizontal plane by the drive device (2a) in the footrest (1) The inner cylinder (4a) whose height is higher than the height of the tallest PET bottle cap (Fa) and lower than its diameter, and the outer circumference of the rotary disc (2) for sorting The outer cylinder (4b) provided outside the outer integrated circumferential groove (3) fixed to the leg stand (1) below, and the upper plate (4c) connecting these cylinders (4a, 4b) , And the inner cylinder (4a) has an upper cover (4ab) that forms a cap insertion path (4ab) for the PET bottle to be sorted into the center of the upper surface (2b) of the sorting rotary disk (2). (4) is supported and fixed to the footrest (1),
The upper surface (2b) of the sorting rotating disk (2) is between the upper surface (2b) of the sorting rotating disk (2) and the lower end (4aa) of the inner cylinder (4a) of the upper cover (4). A guide plate (5) erected in the direction deflected in the rotational direction of the rotating disc (2) for sorting the plastic bottle cap (F) that has passed through the outer periphery, and the guide plate ( 5) to a sorting plate (6) that is horizontally arranged in the rotation direction of the sorting rotary disk (2) and whose lower surface is positioned at a predetermined height from the upper surface (2b) of the sorting rotary disk (2). The sorting guide member (7) is formed on the cap (Fb) of the plastic bottle having the largest outer diameter between the end of the sorting plate (6) of the adjacent sorting guide member (7) and the guide plate (5). It is provided to form a guideway (2d) wider than the outer diameter,
In addition, an opening (8) is formed on the circumferential side of the sorting rotary disk (2) in which a portion of the sorting guide member (7) located below the sorting plate (6) is cut out. ,
On the lower surface facing the opening (8), an inner integrated circumferential groove (9) is installed on the footrest (1),
Further, on the outer periphery and lower surface of the sorting rotary disk (2), caps (F) for PET bottles that have fallen into the outer integrated circumferential groove (3) and the inner integrated circumferential groove (9) are respectively provided on the outer side. The outer circumferential scraper (10) and the inner scraper (11) to be moved to the discharge ports (3a, 9a) of the accumulation circumferential groove (3) and the inner accumulation circumferential groove (9) are installed. PET bottle cap sorting device.   Each guide plate (5,...) From the center side of the sorting rotary disk (2) of the outer peripheral part (5a) erected in the direction deflected in the rotating direction of the sorting rotary disk (2). A guide plate further comprising an inner peripheral side portion (5b) formed along the radial direction of the sorting rotary disk (2) continuously toward the center of the sorting rotary disk (2). Item 2. The PET bottle cap sorting device according to Item 1.   An agitation rod (12) for agitating the cap (F) for the injected plastic bottle is projected from the inner surface of the inner cylinder (4a) of the upper cover (4) toward the center of the rotating disc (2) for sorting. The PET bottle cap sorting device according to claim 1 or 2.   An air blowing device (13) for blowing air on the guide path (2d) on the sorting rotary disk (2) to prevent clogging is provided on the upper cover (4) in the center direction of the sorting rotary disk (2). For the plastic bottle in the cap injection path (4ab) for the plastic bottle to be sorted of the upper cover (4) and being fixed toward the outer periphery of the sorting rotary disk (2). The sensor (13a) for operating or stopping the air blowing device (13) according to the amount of accumulated cap (F) is provided in the cap injection path (4ab) for the PET bottle for sorting. The PET bottle cap sorting device according to any one of the above.   The PET bottle cap sorting device according to any one of claims 1 to 4, further comprising a conical dispersion table (2c) installed at the center of the upper surface (2b) of the sorting rotating disk (2). .

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