Separation device and separation method

Abstract

To provide a sorting device which recovers a linear conductor from a rough nugget as much as possible, and can improve a yield of wire harness recycling.SOLUTION: A sorting device 1 of a rough nugget has: a first mesh sieve 5 that has a frame 2 and a mesh 51, to which a rough nugget is charged; a trimming part 8 for cutting a linear conductor projecting from the mesh 51 of the first mesh sieve 5; a shredding part 6 for shredding the rough nugget remaining in the first mesh sieve 5; a second mesh sieve 7 that has a mesh 71 finer than the first mesh sieve 5, to which a rough nugget shredded by the shredding part 6 is charged; a recovery part 9 for recovering a linear conductor shaken down through the mesh 51 of the first mesh sieve 5 and the mesh 71 of the second mesh sieve 7, and a linear conductor cut by the trimming part 8; and a control part.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a sorting device and a sorting method for separating a miscellaneous scrap in which a linear conductor and a non-linear object including a terminal are cut and mixed together.

Background Art

[0002] Automobiles are equipped with wire harnesses for connecting in-vehicle devices to each other. The wire harness includes, for example, an electric wire in which a linear conductor made of pure copper is covered with an insulating coating, a terminal made of a copper alloy connected to the end of the electric wire, a resin connector housing that houses the terminal, and the like. Such wire harnesses are removed from scrapped vehicles and recycled (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the recycling process of wire harnesses, waste materials that are only pure copper-coated electric wires without contamination of dissimilar metals such as terminals can be separated into waste plastic and pure copper (linear conductor). However, since it is difficult to separate waste materials contaminated with dissimilar metals such as terminals, those obtained by removing waste plastic (mixtures of linear conductors and non-linear objects such as terminals) are collected as "miscellaneous scraps". The miscellaneous scraps have a copper purity of about 92 to 97% and cannot be reused as wire materials. In addition, it is too costly to extract pure copper by existing methods such as electrolytic refining, making it unrealistic.

[0005] Therefore, an object of the present invention is to provide a sorting device and a sorting method that can recover as much linear conductor as possible from miscellaneous scraps and improve the yield of wire harness recycling.

Means for Solving the Problem

[0006] The present invention is a sorting device for mixed scraps in which a linear conductor and a non-linear object including a terminal are cut and mixed, comprising a first sieve having a mesh into which the mixed scraps are introduced, a shredding section for shredding the mixed scraps remaining on the first sieve, a second sieve having a finer mesh than the first sieve into which the mixed scraps shredded by the shredding section are introduced, and a recovery section for collecting the linear conductors sieved out by passing through the meshes of the first sieve and the second sieve, respectively.

[0007] The present invention is a sorting method for mixed scraps in which a linear conductor and a non-linear object including a terminal are cut and mixed, comprising a primary sieving step of introducing the mixed scraps into a first sieve having a mesh and sieving out the linear conductor by the first sieve, a shredding step of shredding the mixed scraps remaining on the first sieve after the primary sieving step, a secondary sieving step of introducing the mixed scraps shredded in the shredding step into a second sieve having a finer mesh than the first sieve and sieving out the linear conductor by the second sieve, and a recovery step of collecting the linear conductors sieved out by passing through the meshes of the first sieve and the second sieve, respectively.

Advantages of the Invention

[0008] According to the present invention, the linear conductor that could not be sieved out by the first sieve can be sieved out by the second sieve, and more linear conductors can be recovered from the mixed scraps, improving the yield of wire harness recycling.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0010] The "sorting device" and "sorting method" according to an embodiment of the present invention will be described with reference to FIGS. 1 to 10.

[0011] The sorting device 1 shown in FIGS. 1 to 4 is a sorting device for "miscellaneous scraps" obtained by subjecting wire harnesses removed from scrapped cars to several disassembling steps. The miscellaneous scraps are a mixture of non-linear objects including a linear conductor made of pure copper with the insulating coating removed and terminals made of copper alloy, which are cut. The linear conductors contained in this miscellaneous scrap have a diameter of 0.2 mm and a length of about several mm. The sorting device 1 recovers pure copper (linear conductors) from the miscellaneous scraps.

[0012] The sorting device 1 includes a frame 2 installed on the floor, a first sieve 5, a shredding part 6, a second sieve 7, a communication part 41, a support part 4, lid parts 11 to 14, motors 30 to 32, a trimming part 8, a recovery part 9, a plurality of air cylinders, a control part (not shown), etc.

[0013] The first sieve 5 is for screening out the linear conductors contained in the miscellaneous projectiles when the miscellaneous projectiles are put in. As shown in FIG. 5, the first sieve 5 has a cylindrical mesh 51, a plate portion 52 attached to the opening on one end side of the mesh 51, a plate portion 53 attached to the opening on the other end side of the mesh 51, and a support column 50 connected to the plate portion 52 and the plate portion 53.

[0014] The mesh 51 has a mesh opening of 0.44 mm. The support column 50 is provided so as to pass through the central axis of the first sieve 5. The plate portion 52 is attached to the opening on one end side of the mesh 51, that is, the opening on the side opposite to the second sieve 7. The plate portion 52 is formed in a disc shape and closes the opening. However, as shown in FIG. 7, a through hole 52a for putting in miscellaneous projectiles is formed.

[0015] Also, as shown in FIGS. 5 and 7, a disc-shaped lid portion 11 is overlapped on the outer surface of the plate portion 52. The lid portion 11 is provided so as to be rotatable with respect to the plate portion 52. A through hole 11a overlapping with the through hole 52a of the plate portion 52 is formed in the lid portion 11. When putting miscellaneous projectiles into the first sieve 5, they are positioned at a position where the through holes 52a and 11a overlap each other, and after putting in, they are positioned at a position where the through holes 52a and 11a do not overlap each other. The opening and closing of such a through hole 52a is performed by rotating the first sieve 5 while fixing the lid portion 11 so as not to move.

[0016] Also, the fixing of the lid portion 11 is performed by a pair of air cylinders 35 (see FIG. 2) attached to the frame 2. The air cylinder 35 has a pin 35a that can protrude and retract. When the pin 35a extends toward the lid portion 11 and is inserted into a hole 11b formed in the lid portion 11, the lid portion 11 is fixed to the frame 2. When the pin 35a contracts in a direction away from the lid portion 11 and comes out of the hole 11b, the fixing of the lid portion 11 is released. The operation of such an air cylinder 35 is controlled by the above control unit.

[0017] In addition, in FIG. 7, the lid portion 11 is drawn with a broken line in order to visualize the through hole 52a of the plate portion 52, but the lid portion 11 drawn with this broken line actually exists.

[0018] Such a first sieve 5 is rotated around its central axis (support column 50) by a motor 31 (corresponding to the "first drive unit"). The drive of the motor 31 is controlled by the above control unit. Further, the rotational force of the motor 31 is transmitted to the first sieve 5 via the gear 15, the shaft 16, etc. shown in FIG. 6. When the first sieve 5 with the miscellaneous nails put in it rotates around its central axis, the linear conductor passes through the meshes of the mesh 51 and drops.

[0019] The shredding part 6 shreds the miscellaneous nails remaining inside the first sieve 5 without being sieved out by the first sieve 5. As shown in FIGS. 5 and 6, the shredding part 6 has a bottomed cylindrical case 61 and a cutter 62 attached to the case 61. The case 61 and the cutter 62 form a space between them. This space is for accommodating the supplied miscellaneous nails. The case 61 is connected to the second sieve 7, and the cutter 62 is adjacent to the second sieve 7.

[0020] The cutter 62 is composed of three rotating blades 62a, 62b, 62c overlapped with each other. The central second rotating blade 62b of the three is fixed to the case 61. The first rotating blade 62a and the third rotating blade 62c sandwiching the second rotating blade 62b are provided rotatably with respect to the case 61. The first rotating blade 62a and the second rotating blade 62b rotate in opposite directions, and the first rotating blade 62a and the third rotating blade 62c rotate in the same direction. Each of the rotating blades 62a, 62b, 62c is formed with holes that overlap each other at a certain timing during rotation. The miscellaneous nails are provided to be cut when the rotating blades 62a, 62b and the rotating blade 62b rotate in opposite directions with the miscellaneous nails passed through these holes.

[0021] In addition, the holes of the respective rotary blades 62a, 62b, and 62c communicate with the internal space of the second sieve 7 at timings that overlap with each other. Thus, the cut waste pins are positioned in the internal space of the second sieve 7.

[0022] Also, the first rotary blade 62a and the third rotary blade 62c rotate together with the first sieve 5 by the motor 31. The second rotary blade 62b rotates together with the second sieve 7 and the case 61 by the motor 32 (corresponding to the "second drive unit"). In this example, the number of motors is reduced by rotating the rotary blade and the sieve by a common motor, but a configuration in which the rotary blade and the sieve are rotated by dedicated motors may also be used.

[0023] The second sieve 7 is for receiving the waste pins shredded by the shredding section 6 and sieving out the linear conductors contained in the waste pins. As shown in FIG. 5, the second sieve 7 has a cylindrical mesh 71, a plate portion 72 attached to the opening on one end side of the mesh 71, a plate portion 73 attached to the opening on the other end side of the mesh 71, and a support column 70 connected to the plate portion 72 and the plate portion 73.

[0024] The mesh 71 has an aperture of 0.385 mm and is finer than the mesh 51 of the first sieve 5. The reason why the mesh 71 of the second sieve 7 is finer than the mesh 51 of the first sieve 5 is to prevent non-linear objects (other than linear conductors, such as terminals) in the waste pins shredded by the shredding section 6 from passing through the apertures of the mesh 71.

[0025] The support column 70 is provided so as to pass through the central axis of the second sieve 7. The plate portion 72 is attached to the opening on one end side of the mesh 71, that is, the side of the shredded portion 6. The plate portion 72 is formed in a disc shape and closes the opening, but a through hole is formed to allow stray chips from the shredded portion 6 to pass through. The plate portion 73 is attached to the opening on the other end side of the mesh 71, that is, the opening on the side opposite to the shredded portion 6. The plate portion 73 is formed in a disc shape and closes the opening, but a through hole is formed to discharge the stray chips remaining inside the second sieve 7 without being sieved out by the second sieve 7.

[0026] Also, as shown in FIG. 5, a disc-shaped lid portion 14 is overlaid on the outer surface of the plate portion 73. The lid portion 14 is provided rotatably with respect to the plate portion 73. A through hole overlapping the through hole of the plate portion 73 is formed in the lid portion 14. When discharging the stray chips, they are positioned at a position where these through holes overlap, and at a position where the through holes do not overlap except during discharge. The opening and closing of such through holes are performed by rotating the second sieve 7 while fixing the lid portion 14 so as not to move. The lid portion 14 is fixed in the same manner as the lid portion 11 by a pair of air cylinders 36 (see FIG. 2) attached to the frame 2. The operation of the air cylinder 36 is the same as the operation of the air cylinder 35 and is controlled by the control unit.

[0027] Such a second sieve 7 is rotated around its central axis (support column 70) by a motor 32. The driving of the motor 32 is controlled by the control unit. Also, the rotational force of the motor 32 is transmitted to the second sieve 7 via a gear 17, a shaft 18, etc. shown in FIG. 6. When the second sieve 7 with stray chips inserted rotates around its central axis, the linear conductors pass through the meshes of the mesh 71 and fall.

[0028] The support part 4 is disposed between the first sieve 5 and the shredding part 6, rotatably supports the first sieve 5, the shredding part 6, the second sieve 7, and the motors 31 and 32, and non-rotatably supports the communication part 41. The communication part 41 is a part that communicates the first sieve 5 and the shredding part 6 to allow miscellaneous nails to pass through. The first sieve 5 and the second sieve 7 supported by the support part 4 have their respective central axes arranged on the same straight line (the dashed-dotted line P2 shown in FIG. 4 etc.).

[0029] The support part 4 is connected to the shaft 30a of a motor 30 (corresponding to the "third drive part") attached to the frame 2. The support part 4 rotates about the shaft 30a. The center line of the shaft 30a is indicated by a dashed-dotted line P1 in FIG. 4. The shaft 30a extends in the horizontal direction. The motor 30 rotates the support part 4 so that the central axes of the first sieve 5 and the second sieve 7 are in the horizontal direction and also in the vertical direction. The drive of the motor 30 is controlled by the above control part.

[0030] As shown in FIG. 6, the lid part 12 is disposed between the first sieve 5 and the communication part 41, and makes the first sieve 5 and the communication part 41 in a communicating state or a non-communicating state. The lid part 12 is formed in a disc shape and is overlapped on the outer surface of the plate part 53 of the first sieve 5. The lid part 12 is provided rotatably with respect to the plate part 53. The lid part 12 is formed with a through-hole 12a that overlaps with the through-hole 53a formed in the plate part 53. By positioning the through-holes 53a and 12a to overlap each other, the first sieve 5 and the communication part 41 communicate with each other, and miscellaneous nails can pass through. By positioning the through-holes 53a and 12a so that they do not overlap each other, the first sieve 5 and the communication part 41 are in a non-communicating state, and miscellaneous nails cannot pass through.

[0031] The opening and closing of such a through-hole 53a is performed by rotating the first sieve 5 in a state where the lid part 12 is fixed so as not to move. The fixing of the lid part 12 is performed by an air cylinder (not shown) fixed to the support part 4. The operation of the air cylinder is the same as the operations of the above-described air cylinders 35 and 36, and is controlled by the above control part.

[0032] As shown in Fig. 6, the lid portion 13 is disposed between the communication portion 41 and the slitting portion 6, and is configured to put the communication portion 41 and the slitting portion 6 in a communicating state or a non-communicating state. The lid portion 13 is formed in a disc shape and is overlapped on the outer surface of the case 61 of the slitting portion 6. The lid portion 13 is provided rotatably with respect to the case 61. A through hole 13a overlapping with the through hole 61a formed in the case 61 is formed in the lid portion 13. By positioning at a position where these through holes 61a and 13a overlap each other, the communication portion 41 and the slitting portion 6 communicate with each other, and miscellaneous projectiles can pass through. By positioning at a position where the through holes 61a and 13a do not overlap each other, the communication portion 41 and the slitting portion 6 are in a non-communicating state, and miscellaneous projectiles cannot pass through.

[0033] Opening and closing of such a through hole 61a is performed by rotating the case 61 in a state where the lid portion 13 is fixed so as not to move. Fixing of the lid portion 13 is performed by an air cylinder (not shown) fixed to the support portion 4. The operation of the air cylinder is the same as the operations of the air cylinders 35 and 36 described above, and is controlled by the control unit.

[0034] The trimming portion 8 cuts a linear conductor protruding from the mesh 51 of the first sieve 5. As shown in Figs. 4, 8 to 10, the trimming portion 8 includes a rotary blade 81, a fixed blade 82, a fixing member 83 fixed to the fixed blade 82, an arm 84 connected to the fixing member 83, a shaft 85, and motors 33 and 34.

[0035] The rotary blade 81 has a notch 81a formed in the outer peripheral portion of a cylindrical member, and is provided to rotate around its central axis P3 by a motor 33 controlled by the control unit. The central axis P3 is parallel to the central axis P2 of the first sieve 5.

[0036] The fixed blade 82 is disposed close to the mesh 51 of the first sieve 5. The fixed blade 82 is provided so as to expose the opposing portion of the rotary blade 81 with respect to the mesh 51 and surround the other portions.

[0037] The arm 84 is rotatably attached to the frame 2 by a shaft 85. Further, the rotational force of the motor 34 controlled by the control unit is transmitted to the arm 84 via the shaft 85, so that the arm 84 rotates about the shaft 85. When the arm 84 rotates, the rotary blade 81 and the fixed blade 82 are arranged at a position close to or separated from the mesh 51.

[0038] As shown in FIGS. 8 to 10, the rotary blade 81 rotates with respect to the fixed blade 82, and the linear conductor 10 protruding from the eyes of the mesh 51 is sandwiched between the edge 82b of the fixed blade 82 and the edge 81b of the rotary blade 81, thereby cutting the linear conductor 10. The fragments of the cut linear conductor 10 are positioned in the notch 81a and move together with the rotary blade 81, pass through the through hole 82a formed in the fixed blade 82 and the through hole 83a formed in the fixing member 83, and then fall (trimming process).

[0039] The collecting unit 9 collects the linear conductors that have passed through and been sieved by the meshes 51 of the first sieve 5 and the meshes 71 of the second sieve 7, and the linear conductors cut by the trimming unit 8. The collecting unit 9 includes a conveyor 91 attached to the frame 2, a guide plate 92 that collects the linear conductors falling from the first sieve 5 and the second sieve 7 toward the conveyor 91 side, a slope 93 arranged at one end side of the conveyor 91, and a collecting container and the like.

[0040] The collecting container is provided with one for collecting linear conductors and one for collecting foreign chips discharged from the second sieve 7. The collecting container for linear conductors is arranged below the slope 93. The collecting container for foreign chips is arranged at the other end side of the conveyor 91. When the conveyor 91 rotates forward, the linear conductors are collected in the collecting container for linear conductors, and when the conveyor 91 rotates in reverse, the foreign chips are collected in the collecting container for foreign chips.

[0041] The discharge of the foreign chips from the second sieve 7 is performed after the sieving processes of the first sieve 5 and the second sieve 7, and it is avoided that the linear conductors and the foreign chips are mixed on the conveyor 91. The discharge process of these foreign chips and the rotation control of the conveyor 91 are controlled by the above control unit.

[0042] An example of the separation method using the above separation device 1 will be described. First, foreign chips are input into the first sieve 5. After the input, the first sieve 5 rotates according to a pre-programmed rotation pattern to sieve out the linear conductors (primary sieving process). After this primary sieving process is performed for a predetermined time, the rotary blade 81 and the fixed blade 82 of the trimming unit 8 are moved from the separated position to the proximity position of the mesh 51, and the above-described trimming process is performed. Also, in parallel with the primary sieving process and the trimming process, the collecting unit 9 is operated, and the linear conductors collected on the conveyor 91 are collected into the collecting container for the linear conductors (collecting process).

[0043] After the trimming process is performed for a predetermined time, the first sieve 5 and the shredding unit 6 are put into a communicating state by the communicating portion 41. Then, by tilting the communicating portion 41 by driving the motor 30, the foreign chips are moved from the first sieve 5 to the shredding unit 6.

[0044] Subsequently, the shredding process of the foreign chips is performed by the shredding unit 6. By operating the cutter 62 in a state where the shredding unit 6 is positioned above and the second sieve 7 is positioned below by driving the motor 30, the shredded foreign chips are supplied to the second sieve 7. The foreign chips once supplied to the second sieve 7 may be moved to the shredding unit 6, and the shredding process may be performed a plurality of times. The movement of the foreign chips from the second sieve 7 to the shredding unit 6 can be achieved by positioning the shredding unit 6 below and the second sieve 7 above by driving the motor 30.

[0045] After the shredded miscellaneous conductors are supplied to the second sieve 7, the second sieve 7 rotates according to a pre-programmed rotation pattern to sieve out the linear conductors (secondary sieving step). In parallel with the secondary sieving step, the recovery unit 9 is operated, and the linear conductors collected on the conveyor 91 are recovered into the recovery container for the linear conductors (recovery step). After the completion of this secondary sieving step, the conveyor 91 stops, and the miscellaneous conductors remaining on the second sieve 7 are discharged. When the miscellaneous conductors are discharged onto the conveyor 91, the conveyor 91 reverses, and the miscellaneous conductors are recovered into the recovery container for the miscellaneous conductors. The above-described series of steps are performed by the control unit executing a preset program.

[0046] Also, in the primary sieving step by the above-described first sieve 5 and the secondary sieving step by the second sieve 7, the following rotation pattern is executed. That is, each sieve 5, 7 rotates in a rotation pattern including an operation of rotating by a first angle in the forward rotation direction, then rotating by a second angle different from the first angle in the reverse rotation direction, and then rotating by a third angle different from the first angle and the second angle in the forward rotation direction. The first angle is, for example, 270 degrees, the second angle is, for example, 90 degrees, and the third angle is, for example, 180 degrees. By adopting such a rotation pattern, it is possible to avoid the linear conductors staying at some locations of each sieve 5, 7 and to allow the linear conductors caught by the meshes 51, 71 to pass through.

[0047] The above-described separation device 1 can sieve out the linear conductors that could not be sieved out by the first sieve 5 after being shredded by the shredding unit 6 and then by the second sieve 7. Also, since the mesh 71 of the second sieve 7 is finer than the mesh 51 of the first sieve 5, it is possible to prevent non-linear objects (other than the linear conductors, such as terminals) in the shredded miscellaneous conductors shredded by the shredding unit 6 from passing through the meshes of the mesh 71, and the pure copper content can be kept high. Therefore, more linear conductors can be recovered from the miscellaneous conductors, and the yield of wire harness recycling can be improved.

[0048] In the above-described embodiment, the mesh opening of the mesh 51 was 0.44 mm and the mesh opening of the mesh 71 was 0.385 mm. These are suitable mesh opening dimensions for the linear conductor with a thickness of 0.2 mm in the above-described embodiment. In the present invention, the mesh opening dimension can be changed according to the thickness of the linear conductor and the target recovery rate and purity of the linear conductor.

[0049] In the above-described embodiment, the trimming portion 8 was provided only for the first sieve 5, but the trimming portion 8 may be provided for the second sieve 7, or the trimming portion 8 may be provided for each of the first sieve 5 and the second sieve 7.

[0050] In the above-described embodiment, the separation device 1 was used to recover a linear conductor made of pure copper, but the linear conductor of the present invention is not limited to being made of pure copper, and may be made of, for example, aluminum. And the separation device 1 may be used to recover a linear conductor made of aluminum.

[0051] Note that the above-described embodiment only shows a typical form of the present invention, and the present invention is not limited to this embodiment. That is, various modifications can be made without departing from the gist of the present invention. As long as the configuration of the present invention is still provided by such modifications, of course, it is included in the scope of the present invention.

Explanation of reference numerals

[0052] 1 Separation device 2 Frame 4 Support portion 5 First sieve 6 Cutting portion 7 Second sieve 8 Trimming portion 9 Recovery portion 41 Communication portion 51,71 Mesh

Claims

1. A sorting device for mixed debris in which a linear conductor and a non-linear object including a terminal are cut and mixed, comprising: a first sieve having a mesh into which the mixed debris is introduced; a shredding section for shredding the mixed debris remaining on the first sieve; a second sieve having a mesh finer than that of the first sieve into which the mixed debris shredded by the shredding section is introduced; a recovery section for collecting the linear conductors that have passed through the meshes of the first sieve and the second sieve and have been sieved out. The sorting device is characterized by the above.

2. A trimming section for cutting the linear conductor protruding from the mesh of the first sieve or the second sieve is provided, and the recovery section collects the linear conductor cut by the trimming section. The sorting device according to claim 1, characterized by the above.

3. The shredding section is connected to the second sieve, and a communication section for communicating the first sieve and the shredding section is provided. The sorting device according to claim 1, characterized by the above.

4. A lid portion disposed between the first sieve and the communication section to put them in a communicating state or a non-communicating state, and a lid portion disposed between the communication section and the shredding section to put them in a communicating state or a non-communicating state are provided. The sorting device according to claim 3, characterized by the above.

5. The first sieve and the second sieve each have a cylindrical mesh, the central axis of the first sieve and the central axis of the second sieve are arranged on the same straight line, a first driving section for rotating the first sieve around its central axis, a second driving section for rotating the second sieve around its central axis, and a third driving section for rotating a support section that supports the first sieve, the communication section, the shredding section, and the second sieve are provided, and the third driving section rotates the first sieve and the second sieve so that their central axes are in the horizontal direction and also in the vertical direction. The sorting device according to claim 3, characterized by the above.

6. The first sieve or the second sieve rotates in a rotation pattern including an operation of rotating by a first angle in the forward rotation direction, then rotating by a second angle different from the first angle in the reverse rotation direction, and then rotating by a third angle different from the first angle and the second angle in the forward rotation direction. The sorting device according to claim 5, characterized by the above.

7. The shredded portion has a first rotary blade and a second rotary blade that are overlapped with each other and rotate in opposite directions to each other, the first rotary blade rotates together with the first sieve by a first drive unit, the second rotary blade rotates together with the second sieve by a second drive unit The sorting device according to claim 5, characterized in that.

8. The trimming unit has a fixed blade disposed close to the mesh of the first sieve or the second sieve, and a rotary blade that rotates with respect to the fixed blade, the trimming unit sandwiches a linear conductor protruding from the mesh of the sieve between the fixed blade and the rotary blade and cuts the linear conductor The sorting device according to claim 2, characterized in that.

9. A method for sorting mixed scrap in which a linear conductor and a non-linear object including a terminal are cut, a primary sieving step of feeding the mixed scrap into a first sieve having a mesh and sieving out the linear conductor by the first sieve, a shredding step of shredding the mixed scrap remaining on the first sieve after the primary sieving step, a secondary sieving step of feeding the mixed scrap shredded in the shredding step into a second sieve having a finer mesh than the first sieve and sieving out the linear conductor by the second sieve, and a recovery step of collecting the linear conductors sieved out by passing through the meshes of the first sieve and the second sieve respectively. The sorting method characterized by that.

10. After the primary sieving step or after the secondary sieving step, there is a trimming step of cutting a linear conductor protruding from the mesh of the first sieve or the second sieve, in the recovery step, the linear conductor cut in the trimming step is also collected The sorting method according to claim 9, characterized in that.

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