JP3755229B2 - Size sorter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a size sorting device that sorts objects to be sorted according to size.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a size sorting device 10 as shown in FIGS. 5 and 6 is known as a device for sorting objects such as glass bottles and plastic bottles into sizes and shapes. A conventional size selection apparatus 10 includes a table 2 that is rotationally driven, a small bin pocket 2a that is provided on the outer periphery of the table 2 and into which only the small bin 1 can fall, 2 in a mixed state, a first discharge chute 4 for discharging the large bin 1a, and a second discharge chute 5 for discharging the small bin 1b of the small bin pocket 2a. .
[0003]
In this size selection apparatus 10, the bins 1a and 1b are conveyed by the conveyor 3 and fall to the center of the table 2 that is rotationally driven. While being pushed out by the stationary alignment plate 6, the bins 1 a and 1 b are dispersed and moved while rolling toward the outer periphery of the table 2 under the influence of centrifugal force due to rotation.
[0004]
Then, the small bin 1 b falls into the small bin pocket 2 a on the outer peripheral portion of the table 2. On the other hand, since the large bin 1a is larger than the width of the small bin pocket 2a, it does not fall into the small bin pocket 2a, but contacts the inner surface of the fixed wall 7 and stays in the vicinity of the outer periphery of the table 2.
[0005]
The small bin 1 b that has dropped into the small bin pocket 2 a is conveyed by the rotation of the table 2 and discharged from the second discharge chute 5. Further, the large bin 1 a remaining on the table 2 is conveyed along the fixed wall 7 by the rotation of the table 2 and is discharged from the first discharge chute 4. By using such a size sorting apparatus 10, even when objects to be sorted having different sizes are mixed, sorting can be performed more accurately and quickly than by manual work.
[0006]
[Problems to be solved by the invention]
However, in the conventional size sorting apparatus 10, since the supplied bins 1a and 1b are immediately sent to the outer periphery of the table 2, for example, when a large number of bins 1a and 1b are temporarily excessively supplied, However, there is a drawback that there is a possibility that the sorting operation may be disturbed due to traffic jam. At the same time, since the bins 1a and 1b are not sent in a constant amount to other sorting devices subsequent to the size sorting device 10, there is a possibility that the operation of the devices may be hindered.
[0007]
In the conventional size sorting apparatus 10, the small bin 1b is dropped into the small bin pocket 2a. The tip of the large bin 1a having a small diameter at the opening of the small bin pocket 2a. There is also a disadvantage that the portion fits in and causes malfunction.
[0008]
Therefore, the present invention has been made in view of such circumstances, and provides a size selection device that can prevent congestion of an object to be sorted, improve quantitativeness, and can perform selection more reliably. With the goal.
[0009]
[Means for Solving the Problems]
In order to solve the above-described problems, the invention described in claim 1 includes a table that rotates in a horizontal direction, a supply unit that supplies an object to be sorted of different sizes to the upper surface of the table, and a coaxial arrangement with the table. A circular guide partition wall provided with a passage hole for temporarily storing the supplied material to be sorted inside and sequentially passing the material to be sorted outward; and outside the guide partition wall, A circular sorting partition wall disposed coaxially with the table and provided with a sorting hole through which only a sorting object having a predetermined size or less passes, and the sorting partition wall communicating with the inside of the sorting partition wall and having the predetermined size or more. A first discharge chute for discharging the object to be sorted and a second discharge chute that communicates with the outside of the sorting partition wall and discharges the object to be sorted of a predetermined size or less.
[0010]
In this size selection apparatus, the objects to be sorted having different sizes are mixed and conveyed by the supply means, and the table is driven to rotate. The object to be sorted falls from the supply means to the inside of the guide partition wall and stays here temporarily. Thereafter, the objects to be sorted are sequentially rolled out of the guide partition wall from the passage hole under the influence of the centrifugal force due to the rotation of the table.
[0011]
Since the sorting hole of the sorting partition passes only the sorting object of a predetermined size or less, the sorting object of small size passes through the sorting hole as it is, but the sorting object of large size cannot pass through the sorting hole. Therefore, it will be in the state which contact | connected the inner side of the partition wall for a selection.
[0012]
Then, the objects to be sorted are conveyed by the rotation of the table, and the large-sized objects to be sorted are discharged from the first discharge chute and the small-size selection parts are discharged from the second discharge chute. As described above, since the storage section is provided in the transport path of the sorting object, occurrence of congestion of the sorting object in the apparatus can be prevented even when an excessive number of sorting objects are supplied. , Quantitative discharge can be performed.
[0013]
The invention described in claim 2 is the size selection device described in claim 1, wherein a plurality of the guide partition walls are provided concentrically. In this invention, since a plurality of storage parts for storing the objects to be sorted are formed, it is possible to effectively prevent the occurrence of traffic jams of the objects to be sorted in the apparatus, and to discharge with better quantification. It can be performed.
[0014]
According to a third aspect of the present invention, in the size sorting device according to the first or second aspect, an alignment plate protrudes from the outer peripheral surface of the guide partition wall so as to narrow the conveying path of the sorting object. It is characterized by. In the present invention, since the transport path is narrowed by the alignment plate and the objects to be sorted cannot pass unless they are in a line, the objects to be sorted are aligned before sorting, and the sorting process is performed accurately.
[0015]
According to a fourth aspect of the present invention, in the size selection device according to any one of the first to third aspects, the table is formed such that a central portion is higher than a periphery. In this invention, the table has a conical shape, and the object to be sorted is sent not only to the centrifugal force due to the rotation of the table but also to the outer peripheral side along the inclined surface, so that sorting is performed more accurately.
[0016]
According to a fifth aspect of the present invention, in the size selection device according to any of the first to fourth aspects, the width of the passage hole is formed so as to gradually widen in the rotation direction of the table. Features. In this invention, since the passage holes through which the objects to be sorted pass are formed so as to gradually widen, the objects to be sorted sequentially pass one by one when the width of the passage holes exceeds the size of the objects to be sorted. Thus, the sorting can be performed accurately.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the size selection device according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a side sectional view of a size selection device 20 according to the present invention, and FIG. 2 is a plan view of the size selection device 20.
[0018]
As shown in these drawings, the size selection device 20 includes a table 12 that rotates horizontally, a conveyor (supply means) 13 that supplies objects to be selected, for example, glass bottles 1a and 1b, and a circular shape that is disposed on the upper surface of the table 12. First and second guide partition walls 21 and 22, a circular sorting partition wall 23 provided on the outside thereof, first and second discharge chutes 14 and 15 for discharging the bins 1a and 1b, A cylindrical fixed wall 17 constituting an outer case is provided.
[0019]
The table 12 is formed in a conical shape having a high central portion and lowering toward the periphery, and the table 12 is rotatably arranged so that the outer peripheral surface thereof is close to the inner peripheral surface of the fixed wall 17. A driving shaft of a driving device 18 is connected to the lower surface of the table 12, and the driving device 18 rotates horizontally in a counterclockwise direction when viewed from above.
[0020]
The conveyor 13 is constituted by an endless belt, and the bins 1a and 1b having different sizes are placed and conveyed. The terminal end side of the conveyor 13 is located above a substantially central portion of the table 12, from which the bins 1 a and 1 b are dropped on the table 12.
[0021]
The first and second guide partition walls 21 and 22 have a concentric circular shape, and are connected to four support plates 24 projecting horizontally from the upper end of the fixed wall 17, and are arranged on the upper surface side of the table 12. The In addition, although the lower end of the 1st and 2nd guide partition walls 21 and 22 is arrange | positioned adjacent to the table 12, it is not contacting. That is, even if the table 12 rotates, the first and second guide partition walls 21 and 22 remain stationary.
[0022]
The inside of the first guide partition wall 21 is a storage unit 30 that temporarily stores the bins 1a and 1b dropped from the conveyor 13. A part of the first guide partition wall 21 is provided with a first passage hole 21a through which the bins 1a and 1b pass. The first passage hole 21a is set to a size that allows passage of both the large bottle 1a and the small bottle 1b.
[0023]
The inside of the second guide partition wall 22 is an alignment portion 40 for aligning the bins 1a and 1b. That is, a plurality of alignment plates 25 projecting obliquely outward are provided on the outer peripheral surface of the first guide partition wall 21. The aligning plate 25 partially narrows the width of the aligning portion 40, which is the transport path for the bins 1a and 1b, and aligns the transported bins 1a and 1b.
[0024]
The second guide partition wall 22 is provided with a second passage hole 22a through which the bins 1a and 1b pass. As shown in FIG. 4, the second passage hole 22 a is formed by cutting out the lower side of the second guide partition wall 22.
[0025]
The second passage hole 22a is set so that the width on the start end side is narrow with respect to the rotation of the table 12, and the upper side thereof is an inclined portion 26 so that the width gradually increases from the start end, and then the wide horizontal portion 27 is widened. It has become. That is, only the small bin 1b is allowed to pass near the inclined portion 26, and the large bin 1a is allowed to pass through the horizontal portion 27.
[0026]
As shown in FIGS. 1 and 2, the outer side of the second guide partition wall 22 is a sorting unit 50, and the sorting partition wall 23 is disposed here. The sorting partition wall 23 has a circular shape concentric with the second guide partition walls 21 and 22 and is fixed to the inner surface of the fixed wall 17. That is, it is the same as the first and second guide partition walls 21 and 22 that the table 12 remains stationary even when the table 12 rotates. Note that a plurality of alignment plates 25 project from the outer peripheral surface of the second guide partition wall 22, and the bins 1 a and 1 b are aligned in the sorting unit 50.
[0027]
One end of the sorting partition wall 23 is in contact with the side wall of the first discharge chute 14, makes one round along the fixed wall 17, and the other end is formed to a position that passes through the second discharge chute 15.
[0028]
A gap between the lower side of the sorting partition wall 23 and the upper surface of the table 12 serves as a sorting slit (sorting hole) 23a for sorting the bins 1a and 1b. The sorting slit 23a is set to a width that allows only a small bottle 1b (for example, a bottle having a diameter of 75 mm or less) to pass therethrough, and a large bottle 1a having a larger diameter cannot pass therethrough.
[0029]
As shown in FIG. 2, the first discharge chute 14 is for discharging the large bin 1a, and is connected to the sorting section 50 at a position ahead of the end of the sorting partition wall 23 and protrudes outward. Yes. On the other hand, the second discharge chute 15 is for discharging the small bin 1b, and is connected to the sorting unit 50 at a position before the end of the sorting partition wall 23 and protrudes outward.
[0030]
Then, the operating state of this size selection apparatus 20 is demonstrated.
First, as shown in FIG. 1, the large bin 1 a and the small bin 1 b are mixed and conveyed by the conveyor 13, and the table 12 is rotated by the driving device 18. The bins 1 a and 1 b fall from the end of the conveyor 13 to the storage unit 30 of the table 12.
[0031]
In the storage unit 30, the supplied bins 1a and 1b stay temporarily. As shown in FIG. 3, the bins 1 a and 1 b are affected by the centrifugal force due to the rotation of the table 12, and sequentially reach the alignment portion 40 on the outer side of the first guide partition wall 21 from the first passage hole 21 a. Roll out. Therefore, even when an excessive number of bins 1a and 1b are supplied from the conveyor 13, the bins 1a and 1b in the apparatus are temporarily stored in the storage unit 30 and sequentially supplied to the outside. , 1b is prevented from occurring.
[0032]
In the alignment part 40, the bins 1a and 1b are aligned. That is, not only the centrifugal force due to the rotation of the table 12 but also the alignment plate 25 pushes the bins 1a and 1b to the outer peripheral side, so that the bins 1a and 1b are aligned in contact with the inside of the second guide partition wall 22. become. The aligned bins 1a and 1b make one round while being placed on the upper surface of the table 12, and are conveyed to the point of the second passage hole 22a.
[0033]
As shown in FIG. 4, the second passage hole 22a is set so that the width gradually increases from the start end side with respect to the rotation of the table 12, and therefore, in the range corresponding to the inclined portion 26, first the small bin 1b. Only passes through the second guide partition wall 22. Next, the large bin 1a passes through the second guide partition wall 22 in a range corresponding to the horizontal portion 27 of the passage hole 22a.
[0034]
As described above, since the width gradually increases in the range corresponding to the inclined portion 26 of the second passage hole 22a, the plurality of small bottles 1b are gathered in the vicinity of the second passage hole 22a. However, they do not roll out at the same time, and are sequentially sent outward one by one. Further, since the large bin 1a and the small bin 1b are sent outward at different timings, the bins 1a and 1b are not congested even when the bins 1a and 1b are temporarily excessively supplied.
[0035]
In the sorting unit 50, the bins 1a and 1b are sorted. That is, since the sorting slit 23a of the sorting partition wall 23 allows only the small bin 1b to pass, the small bin 1b that has rolled out passes through the sorting slit 23a as it is, reaches the outermost periphery of the table 12, and reaches the fixed wall 17 ( It contacts the inner peripheral surface of FIG. On the other hand, since the large bin 1a cannot pass through the sorting slit 23a, the large bottle 1a is in contact with the inside of the sorting partition wall 23.
[0036]
As shown in FIG. 3, the bins 1 a and 1 b are transported substantially once by the rotation of the table 12, and the large bin 1 a is transferred from the first discharge chute 14, and the small bin 1 b is transferred to the second discharge chute 15. Are discharged respectively.
[0037]
Thus, since the storage part 30 and the alignment part 40 are provided in the conveyance path | route of the bins 1a and 1b, while the residence time of the bins 1a and 1b in an apparatus becomes long, it is always discharged | emitted by fixed amount. Therefore, it is possible to prevent a situation in which the operation of another subsequent device such as a material sorting device is hindered.
[0038]
Further, since the sorting of the bins 1a and 1b is performed by passing through the sorting slit 23a, the sorting slit 23a is compared with the conventional configuration in which the small bottle 1b is dropped into the small bin pocket 2a (FIG. 5). Therefore, it is difficult to cause a situation where the tip of the large bottle 1a is fitted into the large bottle 1a.
[0039]
Further, in the present application, even when the narrow tip of the large bottle 1a is fitted in the sorting slit 23a, the sorting partition wall 23 ends immediately before the first discharge chute 14 as shown in FIG. Therefore, here, the large bottle 1a is removed from the sorting slit 23a and discharged, so that the sorting operation is not hindered.
[0040]
In addition, although embodiment demonstrated the case where a bottle is sorted, the to-be-sorted object is not restricted to this, Other things, such as a plastic bottle, may be sufficient. Further, the supply means is not limited to the conveyor 13 as shown in the figure, and for example, a plurality of rollers arranged in parallel and the bins 1a and 1b conveyed on the rollers may be used.
[0041]
【The invention's effect】
As described above, according to the first aspect of the present invention, since the objects to be selected are temporarily stored in the storage unit and then sequentially supplied to the outside, the congestion of the objects to be selected in the apparatus. Is prevented, and the objects to be sorted can be discharged quantitatively. In addition, since the objects to be sorted can be discharged in a certain amount, the subsequent apparatus is not adversely affected. Furthermore, since the sorting of the sorting object is performed by passing through the sorting hole, it is difficult to cause a situation where the sorting object fits into the sorting hole as compared with the conventional configuration in which the sorting object is dropped, Sorting is performed accurately.
[0042]
According to the second aspect of the present invention, since a plurality of storage parts for storing the objects to be sorted are formed, it is possible to effectively prevent the occurrence of traffic jams in the apparatus even in the apparatus.
[0043]
According to the third aspect of the present invention, since the transport path is narrowed by the alignment plate and the objects to be sorted cannot pass unless they are in a line, the objects to be sorted are aligned before sorting. Will be done.
[0044]
According to the invention described in claim 4, the table has a conical shape, and the object to be sorted is sent not only to the centrifugal force due to the rotation of the table but also to the outer peripheral side along the inclined surface. Will be done.
[0045]
According to the fifth aspect of the present invention, since the passage hole through which the object to be sorted passes is formed so as to gradually widen, the object to be sorted becomes a point when the width of the passage hole exceeds the size of the object to be sorted. Even if it is the same size, it passes one by one sequentially, and further sorting can be performed accurately.
[Brief description of the drawings]
FIG. 1 is a side sectional view showing a configuration of a size selection apparatus according to the present invention.
FIG. 2 is a plan view showing a configuration of a size selection device according to the present invention.
FIG. 3 is a plan view showing a bin sorting operation of the size sorting device.
FIG. 4 is a perspective view showing the shape of a passage hole.
FIG. 5 is a side sectional view showing a configuration of a conventional size selection device.
FIG. 6 is a plan view showing a configuration of a conventional size selection device.
[Explanation of symbols]
1a, 1b Bin 2, 12 Table 3, 13 Conveyor 4, 14 First discharge chute 5, 15 Second discharge chute 10, 20 Size selection device 21 First guide partition wall 21a First passage hole 22 Second Guide partition wall 22a Second passage hole 23 Sorting partition wall 23a Sorting slit 25 Alignment plate 30 Storage unit 40 Alignment unit 50 Sorting unit

Claims (5)

A table that rotates horizontally;
Supply means for supplying the objects to be sorted of different sizes to the upper surface of the table;
A circular guide partition wall disposed coaxially with the table and provided with a passage hole for temporarily storing the supplied sorting object inside and passing the sorting object sequentially to the outside;
A circular sorting partition wall provided on the outside of the guide partition wall and coaxially with the table and provided with a sorting hole that allows passage of a sorting object having a predetermined size or less;
A first discharge chute that communicates with the inside of the sorting partition wall and discharges the object to be sorted having a predetermined size or more;
A second discharge chute that communicates with the outside of the sorting partition wall and discharges the object to be sorted having a predetermined size or less;
A size selection device characterized by comprising: The size selection device according to claim 1, wherein a plurality of the guide partition walls are provided concentrically. The size sorting apparatus according to claim 1 or 2, wherein an alignment plate projects from an outer peripheral surface of the guide partition wall so as to narrow a conveyance path of the sorting object. The size selection device according to any one of claims 1 to 3, wherein the table has a central portion formed higher than the periphery. The size selection device according to claim 1, wherein a width of the passage hole is formed so as to gradually widen in a rotation direction of the table.

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