Sorting recovery device

Abstract

To provide a sorting recovery device which can easily align crushed pieces in one row and does not hinder accurate sorting, compared with conventional devices.SOLUTION: A sorting recovery device includes: a feeder 11 that aligns multiple carried-in crushed pieces C in one row by downward inclination and vibration, and sequentially carries them out; a sorting device 5; and recovery devices 6A to 6C, wherein the feeder 11 is provided with multiple guides 12 that extend toward the center from both sides of a conveying path P, and the guides 12 are provided so as to be able to swing freely within the conveying path P, with a base end fixed to the feeder 11 as a fixed end and a tip end as a free end. The feeder 11 can align the multiple carried-in crushed pieces C in one row, thereby achieving high-precision sorting in the sorting device 5.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a sorting and recycling device used for sorting and recycling crushed pieces, such as metal scraps, by material.

Background Art

[0002] As a conventional sorting and recycling device, for example, there is one described in Patent Document 1. Patent Document 1 describes a sorting and recycling device including a first vibrating feeder for dispersing crushed pieces in a plane, a second vibrating feeder for aligning the crushed pieces passing through the first vibrating feeder in a single row, a sorting device for sorting the crushed pieces passing through the second vibrating feeder by material, and a recycling device for recycling the crushed pieces sorted by the sorting device by material.

[0003] The second vibrating feeder aligns and discharges the crushed pieces in a single row by a downward inclined surface and vibration. The cross-section of the passage forms a V shape, and in the middle of the passage, a curved passage is formed by a semi-cylindrical member protruding from the end of the inclined surface to the center line. The sorting device passes the crushed pieces through a magnetic field, measures the change in inductance and the weight, and sorts the material of the crushed pieces based on the measurement results.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, since the above-described conventional sorting and recovery device used a second vibrating feeder having a V-shaped cross section and with a semi-cylindrical member disposed in the passage, when a plurality of crushed pieces were supplied to the second vibrating feeder, the crushed pieces could overlap or become entangled vertically, and there was a risk that the crushed pieces would clog at the portion of the semi-cylindrical member, making it difficult to align the crushed pieces in a single row. In addition, if it is difficult to align the crushed pieces in a single row, it may hinder accurate sorting by the sorting device in the next process.

[0006] The present invention has been made in view of the above-described conventional situation, and an object thereof is to provide a sorting and recovery device capable of aligning a large number of crushed pieces carried into a feeder in a single row and realizing high-precision sorting in a sorting device in the next process.

Means for Solving the Problems

[0007] The sorting and recovery device according to the present invention includes a feeder that aligns a plurality of carried-in crushed pieces in a single row by downward inclination and vibration and sequentially discharges them, a sorting device that detects the material of the crushed pieces discharged by the feeder, and a recovery device that recovers the crushed pieces by material type based on the detection result of the sorting device. And, the sorting and recovery device is characterized in that the feeder includes a conveyance passage and a plurality of guides extending from both sides of the conveyance passage toward the center direction, and the plurality of guides are provided so as to be swingable in the conveyance passage with the base end portion fixed to the feeder as a fixed end and the tip end portion as a free end.

Effects of the Invention

[0008] Since the sorting and recovery device according to the present invention adopts the above-described configuration, a large number of crushed pieces carried into the feeder can be aligned in a single row, and by sequentially discharging these crushed pieces, high-precision sorting in the sorting device in the next process can be realized.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Embodiments for Carrying out the Invention

[0010] <First Embodiment> The sorting and recovery device shown in FIG. 1 is a device that sorts and recovers crushed pieces such as metal scraps by material. Briefly described, the sorting and recovery device includes, in order from the right side in the figure, a hopper 1, a loading conveyor 2, a feeder device 3, and an unloading conveyor 4.

[0011] Further, the sorting and recovery device includes, along the unloading conveyor 4, a sorting device 5, a plurality of recovery boxes 6A to 6C by material, a final recovery box 6D, and a plurality of sorting devices 7A to 7C. This sorting and recovery device is configured with the recovery boxes 6A to 6C by material, the final recovery box 6D, and the plurality of sorting devices 7A to 7C.

[0012] The hopper 1 temporarily stores a large number of input crushed pieces and supplies them to the loading conveyor 2 in a certain amount at a time. The loading conveyor 2 is, for example, a belt conveyor, and supplies the crushed pieces supplied from the hopper 1 to the feeder device 3. The feeder device includes a downwardly inclined feeder 11 and a vibration applying device 8 that applies vibration to the feeder 11. This feeder 11 will be described in detail later.

[0013] The unloading conveyor 4 is, for example, a belt conveyor, and conveys the crushed pieces supplied from the feeder 11. The sorting device 5 uses LIBS (Laser Induced Breakdown Spectroscopy) and is a device that sorts the material of the crushed pieces by an optical detection method.

[0014] The material-specific collection boxes 6A to 6C and the sorting devices 7A to 7C are arranged according to the material of the crushed pieces. The final collection box 6D is arranged at the end of the unloading conveyor 4 and collects the crushed pieces that were not sorted by the sorting device 5. The sorting devices 7A to 7C operate respectively based on the detection results of the sorting device 5, and use air blowing and appropriate mechanisms to put the corresponding crushed pieces from the unloading conveyor 4 into the collection boxes 6A to 6C.

[0015] As shown in FIG. 2, the feeder 11 in the above sorting and recovery device forms a groove-shaped transport passage P by bending and shaping a plate material or joining a plurality of plate materials. The feeder 11 includes a transport passage P and a plurality of guides 12 extending from both sides of the transport passage P in the central direction. These guides 12 are provided so as to be swingable within the transport passage P with the base end portion fixed to the feeder 11 as a fixed end and the tip end portion as a free end.

[0016] As shown in FIG. 2(A), the feeder 11 includes a flat bottom wall portion 11A and both side wall portions 11B, 11B continuous at both ends of the bottom wall portion 11A in a cross section orthogonal to the transport direction of the crushed pieces C, and the both side wall portions 11B, 11B are inclined upward outward from each other.

[0017] Also, as shown in FIG. 2(C), the feeder 11 has a width dimension that gradually decreases from the loading side (the right side in FIG. 2) to the unloading side of the crushed pieces C. Therefore, the feeder 11 has a tapered structure in which the width dimension W2 on the unloading side is smaller than the width dimension W1 on the loading side.

[0018] Furthermore, as shown in FIG. 2(B), the feeder 11 has a height dimension in which both side wall portions 11B, 11B gradually become smaller from the loading side to the unloading side of the crushed pieces C. Therefore, the feeder 11 has a structure in which the height H2 on the unloading side is smaller than the height H1 on the loading side.

[0019] Further, the feeder 11 has a bottom wall portion 11A having a lower coefficient of friction than the coefficients of friction of the side wall portions 11B, 11B on both sides on the surface on the conveyance path P side. FIG. 2(C) shows the surface on the conveyance path P side, i.e., the upper surface, of the bottom wall portion 11A and the surface on the conveyance path P side, i.e., the inner surface (the surface with a matte finish), of the side wall portion 11B.

[0020] In the feeder 11 of this embodiment, two guides 12 are arranged at positions closer to the unloading side (the left side in FIG. 2C) of the side wall portions 11B, 11B on both sides, and are arranged offset from each other on both sides of the conveyance path P. Each guide 12 is formed in a flexible sheet shape, has a base end fixed to a support rod 12A erected on the side wall portion 11B as a fixed end, and has a tip end protruding into the conveyance path P as a free end, and is swingable within the conveyance path P.

[0021] Further, as shown in FIG. 2(A), each guide 12 forms a passage space (P) between itself and the bottom wall portion 11A of the feeder 11, and more specifically, has a rectangular shape having one side along the side wall portion 11B of the feeder 11.

[0022] The above-described guides 12 are not limited in terms of their materials, but are typically made of resin. Among the guides 12 adjacent to each other in the conveyance direction of the crushed pieces C, which is the left direction in FIG. 2(C), the guide 12 arranged on the downstream side in the conveyance direction (the left guide 12 in the figure) is formed of a softer material than the guide 12 arranged on the upstream side in the conveyance direction (the right guide 12 in the figure).

[0023] In the feeder 11 in the sorting and recovery device having the above configuration, a plurality of crushed pieces C are supplied from the loading conveyor 2, and the crushed pieces C are moved by the downward inclination of the feeder 11 itself and the vibration applied by the vibration device 8. At this time, the feeder 11 disperses the crushed pieces C planar on the upstream side in the conveyance direction, eliminates the overlap and entanglement between the crushed pieces C, and then aligns the crushed pieces C in a single row on the downstream side. At that time, the feeder 11 further eliminates the contact between the crushed pieces C by bringing the swingable guide 12 into contact with the crushed pieces C, and reliably aligns the crushed pieces C in a single row.

[0024] In this way, the sorting and recovery device can align a plurality of crushed pieces C in a single row in the feeder 11, and sequentially carry out these crushed pieces C to the carry-out side conveyor 4. Therefore, in the sorting device 5 which is the next process, the sorting of individual crushed pieces C can be carried out with high precision, and the crushed pieces C can be recovered according to the material.

[0025] Moreover, in the above-mentioned sorting and recovery device, since the feeder 11 has a flat bottom wall portion 11A and side wall portions 11B, 11B that are continuously inclined upward and outward from both ends of the bottom wall portion 11A, a plurality of crushed pieces C can be dispersed to prevent the overlapping and entanglement of the crushed pieces C with each other, and at the same time, the crushed pieces C can be centered and aligned in a single row.

[0026] Furthermore, in the above-mentioned sorting and recovery device, since the guides 12 on both side wall portions 11B, 11B of the feeder 11 are arranged offset from each other, the crushed pieces C can be loosened to more reliably eliminate the overlap of the crushed pieces C with each other, and at the same time, the feeding amount of the crushed pieces C can be adjusted, which can contribute to the reliable alignment of the crushed pieces C.

[0027] Furthermore, in the above-mentioned sorting and recovery device, since a plurality of guides 12 in the feeder 11 form a passage space (P) between the bottom wall portion 11A, while preventing the overlap of the crushed pieces C with each other, the feeding amount can be adjusted to move the crushed pieces C toward the center of the conveying passage P, which can contribute to the reliable alignment of the crushed pieces C.

[0028] Furthermore, in the above-mentioned sorting and recovery device, since the feeder 11 is tapered toward the carry-out side, the crushed pieces C that have moved to the carry-out side are more likely to move toward the center of the conveying passage P, which can contribute to the reliable alignment of the crushed pieces C.

[0029] Furthermore, in the above-described sorting and recovery device, in the feeder 11, the guide 12 arranged on the downstream side in the conveying direction is formed of a material softer than the guide 12 arranged on the upstream side in the conveying direction. Therefore, the function of loosening the crushed pieces C and the function of adjusting the feed rate are further improved, and it is possible to prevent many crushed pieces C from flowing into the sorting device 5. As a result, highly accurate sorting in the sorting device 5 becomes more reliable.

[0030] Furthermore, in the above-described sorting and recovery device, since the side wall portions 11B, 11B on both sides of the feeder 11 have the maximum height dimension H2 on the loading side, when the crushed pieces C are loaded from the loading side conveyor 2 into the feeder 11, it is possible to prevent the crushed pieces C from falling outside the device.

[0031] Furthermore, in the above-described sorting and recovery device, on the surface of the feeder 11 on the side of the conveying passage P, since the bottom wall portion 11A has a lower coefficient of friction than the coefficient of friction of the side wall portion 11B, the speed of alignment of the crushed pieces C is improved, and the crushed pieces C are more likely to be loosened from each other. The sorting speed can be increased, and the individual crushed pieces C can be sequentially supplied to the sorting device 5.

[0032] Furthermore, in the above-described sorting and recovery device, by adopting the guide 12 having a rectangular shape with one side along the side wall portion 11B as the guide 12 of the feeder 11, the passage space (P) on the bottom wall portion 11A can be secured, and the function of loosening the crushed pieces C and the function of adjusting the feed rate can be further improved, contributing to the reliable alignment of the crushed pieces C.

[0033] The sorting and recovery device according to the present invention is not limited to the specific configuration only in the above-described embodiment, and can be appropriately changed without departing from the gist of the present invention. For example, the shape, number, and arrangement of the guides in the feeder can be changed.

Explanation of Reference Numerals

[0034] C Crushed piece P Conveying passage (passage space) 5 Sorting device Recycling boxes (recycling devices) by material 6A to 6C Final recycling box (recycling device) 6D Sorting devices (recycling devices) 7A to 7C 11 Feeder 11A Bottom wall part 11B Side wall part 12 Guide

Claims

1. A sorting and recovery device comprising a feeder that aligns a plurality of fed crushed pieces in a single row by downward inclination and vibration and sequentially discharges them, a sorting device that detects the material of the crushed pieces discharged by the feeder, and a recovery device that recovers the crushed pieces by material type based on the detection result of the sorting device. In this sorting and recovery device, the feeder includes a conveyance path and a plurality of guides extending from both sides of the conveyance path toward the center direction, characterized in that the plurality of guides are provided so as to be swingable within the conveyance path with the base end fixed to the feeder as a fixed end and the tip end as a free end.

2. In a cross-section perpendicular to the conveyance direction of the crushed pieces, the feeder includes a flat bottom wall portion and side wall portions on both sides continuous with both ends of the bottom wall portion, the sorting and recovery device according to claim 1, characterized in that the side wall portions on both sides are inclined upward outward from each other.

3. The sorting and recovery device according to claim 2, characterized in that the plurality of guides are respectively fixed to the side wall portions on both sides and are offset from each other on both sides of the conveyance path.

4. The sorting and recovery device according to claim 2, characterized in that the plurality of guides form a passage space between the bottom wall portion of the feeder.

5. The sorting and recovery device according to claim 2, characterized in that the feeder has a width dimension that gradually decreases from the loading side to the unloading side of the crushed pieces.

6. The side wall portions on both sides of the feeder each include a plurality of the guides, in the guides adjacent to each other in the conveyance direction of the crushed pieces, the guide arranged on the downstream side in the conveyance direction is formed of a softer material than the guide arranged on the upstream side in the conveyance direction. The sorting and recovery device according to claim 2, characterized in that

7. The sorting and recovery device according to claim 2, characterized in that the side wall portions on both sides of the feeder have a height dimension that gradually decreases from the loading side to the unloading side of the crushed pieces.

8. The sorting and recovery device according to claim 2, characterized in that on the surface of the feeder on the conveyance path side, the bottom wall portion has a lower friction coefficient than the friction coefficients of the side wall portions on both sides.

9. The sorting and recovery device according to claim 2, characterized in that the guide forms a rectangular shape having a side along the side wall portion of the feeder.

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