Sea squirt sorter

Abstract

The present invention is an agricultural and fishery product sorter configured such that a sorting roller spacing adjustment device is attached to the sorting section of a sorting main body, positioning a central sorting roller at the center and allowing the side sorting rollers arranged on both sides to move closer to or further apart from the central sorting roller, thereby enabling a narrow sorting spacing on the supply side where the items to be sorted are fed and a wide sorting spacing on the discharge side. In this sorter, the sorting roller spacing adjustment device on the discharge side, installed opposite the supply side, is configured differently from the sorting roller spacing adjustment device on the supply side, thereby enabling the separation of foreign substances such as mussels and barnacles mixed in with the sea squirts from the sea squirts, and a crushing device is installed to crush and discharge the separated foreign substances, thereby enabling more effective sea squirt sorting.

Description

Technology Field

[0001] The present invention is an agricultural and fishery product sorter configured such that a sorting roller spacing adjustment device is attached to the sorting section of a sorting main body, positioning a central sorting roller at the center and allowing the side sorting rollers arranged on both sides to move closer to or further apart from the central sorting roller, thereby enabling a narrow sorting spacing on the supply side where the items to be sorted are fed and a wide sorting spacing on the discharge side. In this sorter, the sorting roller spacing adjustment device on the discharge side, installed opposite the supply side, is configured differently from the sorting roller spacing adjustment device on the supply side, thereby enabling the separation of foreign substances such as mussels and barnacles mixed in with the sea squirts from the sea squirts, and a crushing device is installed to crush and discharge the separated foreign substances, thereby enabling more effective sea squirt sorting. Background Technology

[0003] The sorting machine for agricultural and marine products is capable of sorting fruits, onions, potatoes, and sea squirts by size. A rectangular sorting section is formed on the upper surface of the main body of the sorting machine, with the feeding side being higher and the opposite side lower. A plurality of sorting rollers of the same type, each having a screw formed on the outer surface of the rotating shaft, are arranged. A sorting roller positioned in the center is positioned at the center, and a roller spacing adjustment device is installed to allow the spacing of the side sorting rollers positioned on both sides to be varied. A sorting roller spacing adjustment device is installed to select a narrow spacing for the rollers on the feeding side and a wide spacing for the rollers on the discharge side. Additionally, a driving device is installed in the sorting roller spacing adjustment device on the feeding side to attach a chain sprocket to the rotating shaft of the sorting roller and to connect a driving chain (Patent Registration No. 10-1554578).

[0004] However, the above agricultural and fishery product sorting machine had the inconvenience of not being suitable for sorting sea squirts mixed with a lot of foreign substances. Prior art literature

[0006] Prior Art Patent Registration No. 10-1554578 The problem to be solved

[0007] The present invention is intended to resolve the above inconvenience by improving the sorting roller gap adjustment device on the discharge side of the existing agricultural and fishery product sorter to enable the separation of foreign substances mixed in sea squirts, and by attaching a foreign substance crusher to the foreign substance discharge section to enable the crushing of foreign substances separated from sea squirts, thereby enabling efficient sorting. means of solving the problem

[0009] The present invention forms a sorting section on the upper surface of a sorting main body (1) that is higher than the supply section (1a) for supplying agricultural and fishery products to be sorted, which has a rectangular through-hole, and installs a multi-row sorting roller (2) with a screw formed on the outer surface of a rotating shaft at the same height in the sorting section (1b).

[0010] The sorting rollers are arranged such that a central sorting roller (2a) is positioned in the center, and several side sorting rollers (2b) (2c) are positioned on both sides, so that a foreign substance discharge gap (2d) is formed between the sorting rollers, and a sorting roller gap adjustment device is installed so that the gap on the supply side is selected to be narrow and the gap on the discharge side is selected to be wide.

[0011] A sorting roller spacing adjustment device (a) installed on the supply side of the sorting roller is formed with rectangular guide holes (1d) (1e) on both sides of a fixed hole (1c) that supports the central sorting roller rotation shaft, thereby protruding the side sorting roller rotation shaft, and upper and lower guide horizontal bars (3) (3a) are installed on the upper and lower sides of the rectangular guide holes, and guide holes (4a) (4b) are drilled on the upper and lower sides through which the guide horizontal bars pass so that the movable member (4) is connected to the guide horizontal bar so that it can move along the guide horizontal bar, and a shaft holder (4c) is formed in the middle of each movable member to which the rotation shafts (2') of the sorting rollers are fitted, and a chain sprocket (2") is attached to the protruding end of the rotation shaft, and a drive chain (5) is connected to the chain sprocket of each sorting roller to rotate the sorting rollers, and at both ends of an "×" shaped connector (6') formed by connecting pieces of the same length in an "×" shape at the lower end of the movable member A moving nut (6a)(6b) is attached, and both ends are supported by a shaft holder installed in the front-rear direction on the outer wall of the machine body so that it rotates manually in place. An operating shaft (12) is installed with a left screw section (12a) and a right screw section (12b) symmetrically formed on the front and rear of the shaft body, and the moving nut (6a)(6b) of an "×" shaped connector is screw-coupled to the left screw section and the right screw section of the operating shaft, thereby forming an extendable connector (6) that directs the front-rear moving nut of the "×" shaped connector (6') inward or outward toward the central sorting roller as the operating shaft is rotated, thereby forming a supply-side sorting roller spacing adjustment device (a) that adjusts the gap of the sorting rollers on the supply-side side.

[0012] The discharge side sorting roller spacing adjustment device (b) is a central connector (8) assembled in an "×" shape by stacking two connecting pieces (8') (8") made of a narrow plate body, each having a central connecting hole (8a) formed in the center and outer connecting holes (8b) formed at both ends, and inserting a central connecting shaft (8c) into the central connecting hole.

[0013] A plurality of front and rear connectors (9) are assembled in an "×" shape by stacking two connecting pieces (9')(9"), which are made of narrow plates and are arranged on the front and rear sides of the central connector, with a central connecting hole (9a) formed in the center and outer connecting holes (9b) formed at both ends, and inserting a central connecting shaft (9c) into the central connecting hole (9a).

[0014] A movable nut connector (10) is formed by stacking two connecting pieces (10') (10"), which are made of a narrow plate and have a length half the length of the central connector connecting piece, vertically and vertically, and by inserting the movable nut connecting shaft (11b) formed in the movable nut into the movable nut connecting shaft connecting hole (10a) to form a "∨" shape, wherein the upper connecting piece outer connecting hole of the central connector (8) is connected to the lower connecting piece outer connecting hole of the adjacent front and rear connector with a connecting pin (P).

[0015] The lower connecting piece outer connecting hole of the central connector (8) is connected to the upper connecting piece outer connecting hole of the adjacent front / rear connector (9) with a connecting pin, the upper connecting piece outer connecting hole of the front / rear connector (9) is connected to the lower connecting piece outer connecting hole of the adjacent front / rear connector with a connecting pin, the lower connecting piece outer connecting hole of the front / rear connector is connected to the upper connecting piece outer connecting hole of the adjacent front / rear connector with a connecting pin, the upper connecting piece inner connecting hole of the movable nut connector (10) is connected to the lower connecting piece outer connecting hole of the adjacent front / rear connector with a connecting pin, and the lower connecting piece inner connecting hole of the movable nut connector (10) is connected to the upper connecting piece outer connecting hole of the adjacent front / rear connector with a connecting pin, thereby forming an expandable connector (Ga) in which all connecting pieces are connected in an "×" shape.

[0016] A movable nut (11)(11a) is attached to the lower end of the movable nut connecting shaft (11b) of the movable nut connector (10) positioned at the front and rear of the expandable connector (ga), and

[0017] A shaft connecting hole (8c')(9c')(11b') is formed at the center of the central connecting shaft (8c) of the central connector (8), the central connecting shaft (9c) of the front and rear connector (9), and the movable nut connecting shaft (11b) of the movable nut connector (10), and the retractable connector (ga) is stored in a storage case (13) attached to the upper outer wall of the sorter discharge section, and a front and rear shaft holding member (13a)(13b) equipped with bearings is installed on the front and rear of the storage case, and an operating shaft rod (12) is installed to rotate in place on the front and rear shaft holding members (13a)(13b), and a left screw part (12a) and a right screw part (12b) are symmetrically formed on the front and rear of the operating shaft rod, and the left screw part and the right screw part of the operating shaft rod are coupled to a screw hole formed in the movable nut (11)(11a) of the movable nut connector (10). Depending on the direction in which the operating shaft rod is rotated, the moving nut moves to cause expansion and contraction that is inward toward the central connecting shaft of the central connector or outward in the opposite direction. A lid (14) is placed on the upper surface of the storage case (13), and a central support hole (14a) is drilled in the center of the lid to communicate with the shaft connecting hole of the central connector (8). Narrow guide holes (14b) (14c) are formed on the front and rear sides of the central support hole. The shaft supporting rod (20a) of the discharge shaft holding (20) of the central sorting roller (2a) is connected to the central support hole (14a). The shaft supporting rods (21a) (22a) of the discharge shaft holding (21) (22) of the side sorting roller (2b) (2c) are connected to the shaft connecting hole of the front and rear connector and the shaft connecting hole of the moving nut connector, which are exposed through the narrow guide holes (14b) (14c) on the front and rear sides, thereby connecting the discharge shaft holding (21) (22) of the side sorting roller (2b) (2c) to the discharge side of the sorting roller. The gap can be widened and narrowed, and sea squirts are discharged between the discharge shaft holders (20)(21)(22) and received in a sea squirt collection container along the inclined plate (15) formed on the outer side of the storage case, and a crushing chamber (17a) is placed in the lower discharge section (16a) of the foreign matter guide plate (16) formed below the foreign matter discharge gap (2d) of the sorting roller, and a driving shaft (17b) and a driven shaft (17c) that rotate by a hydraulic motor (17') are installed to rotate facing each other inside the crushing chamber (17a).This is a sea squirt sorter configured to crush foreign matter falling onto a foreign matter guide plate (16) and discharge it onto a conveyor (18) by installing a crusher (17) having crushing blades (17d) formed on the outer surfaces of a driving shaft and a driven shaft in an interlocking manner. Effects of the invention

[0019] In the present invention, the gap between the sorting rollers on the supply side of the sorting roller (2) is adjusted by the sorting roller gap adjustment device (a) on the supply side, and the gap between the sorting rollers on the discharge side is adjusted by the sorting roller gap adjustment device (b) on the discharge side. Thus, a gap for discharging foreign substances is formed between the sorting rollers installed from the supply side to the discharge side, so that the sorted sea squirt moves along the upper surface of the sorting rollers and the foreign substances mixed with the sea squirt fall into the gap for discharging foreign substances formed between the sorting rollers. Consequently, the sea squirt and the foreign substances are separated. The sea squirt then moves along the upper surface of the sorting roller gap to the discharge side and is discharged between the sorting rollers and the discharge side shaft holder of the discharge side, flows down along the inclined plate, and is collected in the sea squirt collection container, thereby achieving sorting that separates the sea squirt from the foreign substances.

[0020] The separated foreign matter is crushed and discharged, which has the advantage of making disposal convenient.

[0021] Additionally, the discharge-side sorting roller spacing adjustment device (b) has a moving nut (11) (11a) positioned at the front and rear of an "×" shaped telescopic connector (ga) installed in a storage case (13) that is coupled to the left threaded portion (12a) and the right threaded portion (12b) of the operating shaft (12). Depending on the rotational direction of the operating shaft, it can adjust the spacing of the discharge shaft holders (21) (22) of the side sorting rollers (2b) (2c) positioned at the front and rear sides of the central sorting roller (2a) by moving inward toward the central connector (8) or outward toward the opposite side. This allows the foreign substance discharge spacing (2d) formed between the sorting rollers to be adjusted to create a spacing suitable for the size of the foreign substance. Since the foreign substance discharge spacing (2d) is narrow on the supply side and gradually widens toward the discharge side, all large and small foreign substances mixed with the sea squirt fall out while the sea squirt is moving. Since it is separated from the sea squirt, you can select sea squirts from which foreign substances have been separated, and

[0022] Since the expandable connector (a) installed in the sorting roller spacing adjustment device on the discharge side is stored in the storage case (13), when sorting sea squirts, there is less risk of immediate contamination by approaching seawater or mud, so the failure rate of the sorting roller spacing adjustment device on the discharge side is reduced and the durability is improved, which is an advantage. Brief explanation of the drawing

[0024] FIG. 1 is an overall perspective view of the present invention. FIG. 2 is a perspective view showing the supply-side sorting roller spacing adjustment device of the present invention. FIG. 3 is an exemplary diagram of a drive chain implemented in the supply-side sorting roller spacing adjustment device of the present invention. FIG. 4 is an exploded perspective view of the supply-side sorting roller spacing adjustment device of the present invention. FIG. 5 is a plan view of the present invention FIG. 6 is an exploded perspective view of the discharge-side sorting roller spacing adjustment device of the present invention. FIGS. 7(a), (b), and (c) are exploded perspective views of the central connector, front and rear connector, and movable nut connector of the discharge-side sorting roller spacing adjustment device of the present invention. FIG. 8(a) and 8(b) are plan views of the discharge-side sorting roller spacing adjustment device of the present invention. FIG. 9 is a cross-sectional view of the discharge-side sorting roller spacing adjustment device of the present invention. Specific details for implementing the invention

[0025] The present invention forms a sorting section on the upper surface of a sorting main body (1) that is higher than the supply section (1a) for supplying agricultural and fishery products to be sorted, which has a rectangular through-hole, and installs a multi-row sorting roller (2) with a screw formed on the outer surface of a rotating shaft at the same height in the sorting section (1b).

[0026] The sorting rollers are arranged such that a central sorting roller (2a) is positioned in the center, and several side sorting rollers (2b) (2c) are positioned on both sides, so that a foreign matter discharge gap (2d) is formed between the sorting rollers, and a sorting roller gap adjustment device is installed so that the gap on the supply side is selected to be narrow and the gap on the discharge side is selected to be wide.

[0027] A sorting roller spacing adjustment device (a) installed on the supply side of the sorting roller is formed with rectangular guide holes (1d) (1e) on both sides of a fixed hole (1c) that supports the central sorting roller rotation shaft, thereby protruding the side sorting roller rotation shaft, and upper and lower guide horizontal bars (3) (3a) are installed on the upper and lower sides of the rectangular guide holes, and guide holes (4a) (4b) are drilled on the upper and lower sides through which the guide horizontal bars pass so that the movable member (4) is connected to the guide horizontal bar so that it can move along the guide horizontal bar, and a shaft holder (4c) is formed in the middle of each movable member to which the rotation shafts (2') of the sorting rollers are fitted, and a chain sprocket (2") is attached to the protruding end of the rotation shaft, and a drive chain (5) is connected to the chain sprocket of each sorting roller to rotate the sorting rollers, and at both ends of an "×" shaped connector (6') formed by connecting pieces of the same length in an "×" shape at the lower end of the movable member A moving nut (6a)(6b) is attached, and both ends are supported by a shaft holder installed in the front-rear direction on the outer wall of the machine body so that it rotates manually in place. A moving nut (6a)(6b) is installed on an operating shaft (12) in which a left screw part (12a) and a right screw part (12b) are symmetrically formed on the front and rear of the shaft body. The moving nut (6a)(6b) of an "×" shaped connector is screw-coupled to the left screw part and the right screw part of the operating shaft, thereby forming an extendable connector (6) that directs the front-rear moving nut of the "×" shaped connector (6') inward or outward toward the central sorting roller as the operating shaft is rotated, thereby forming a supply-side sorting roller spacing adjustment device (a) that adjusts the gap of the sorting rollers on the supply side.

[0028] The discharge side sorting roller spacing adjustment device (b) is a central connector (8) assembled in an "×" shape by stacking two connecting pieces (8') (8") made of a narrow plate body, each having a central connecting hole (8a) formed in the center and outer connecting holes (8b) formed at both ends, and inserting a central connecting shaft (8c) into the central connecting hole.

[0029] A plurality of front and rear connectors (9) are assembled in an "×" shape by stacking two connecting pieces (9')(9"), which are made of narrow plates and are arranged on the front and rear sides of the central connector, with a central connecting hole (9a) formed in the center and outer connecting holes (9b) formed at both ends, and inserting a central connecting shaft (9c) into the central connecting hole (9a).

[0030] A movable nut connector (10) is formed by stacking two connecting pieces (10') (10"), which are made of a narrow plate and have a length half the length of the central connector connecting piece, vertically and vertically, and by inserting the movable nut connecting shaft (11b) formed in the movable nut into the movable nut connecting shaft connecting hole (10a) to form a "∨" shape, wherein the upper connecting piece outer connecting hole of the central connector (8) is connected to the lower connecting piece outer connecting hole of the adjacent front and rear connector with a connecting pin (P).

[0031] The lower connecting piece outer connecting hole of the central connector (8) is connected to the upper connecting piece outer connecting hole of the adjacent front / rear connector (9) with a connecting pin, the upper connecting piece outer connecting hole of the front / rear connector (9) is connected to the lower connecting piece outer connecting hole of the adjacent front / rear connector with a connecting pin, the lower connecting piece outer connecting hole of the front / rear connector is connected to the upper connecting piece outer connecting hole of the adjacent front / rear connector with a connecting pin, the upper connecting piece inner connecting hole of the movable nut connector (10) is connected to the lower connecting piece outer connecting hole of the adjacent front / rear connector with a connecting pin, and the lower connecting piece inner connecting hole of the movable nut connector (10) is connected to the upper connecting piece outer connecting hole of the adjacent front / rear connector with a connecting pin, thereby forming an expandable connector (Ga) in which all connecting pieces are connected in an "×" shape.

[0032] A movable nut (11)(11a) is attached to the lower end of the movable nut connecting shaft (11b) of the movable nut connector (10) positioned at the front and rear of the expandable connector (ga), and

[0033] A shaft connecting hole (8c')(9c')(11b') is formed at the center of the central connecting shaft (8c) of the central connector (8), the central connecting shaft (9c) of the front and rear connector (9), and the movable nut connecting shaft (11b) of the movable nut connector (10), and the retractable connector (ga) is stored in a storage case (13) attached to the upper outer wall of the sorter discharge section, and a front and rear shaft holding member (13a)(13b) equipped with bearings is installed on the front and rear of the storage case, and an operating shaft rod (12) is installed to rotate in place on the front and rear shaft holding members (13a)(13b), and a left screw part (12a) and a right screw part (12b) are symmetrically formed on the front and rear of the operating shaft rod, and the left screw part and the right screw part of the operating shaft rod are coupled to a screw hole formed in the movable nut (11)(11a) of the movable nut connector (10). Depending on the direction in which the operating shaft rod is rotated, the moving nut moves to cause expansion and contraction that is inward toward the central connecting shaft of the central connector or outward in the opposite direction. A lid (14) is placed on the upper surface of the storage case (13), and a central support hole (14a) is drilled in the center of the lid to communicate with the shaft connecting hole of the central connector (8). Narrow guide holes (14b) (14c) are formed on the front and rear sides of the central support hole. The shaft supporting rod (20a) of the discharge shaft holding (20) of the central sorting roller (2a) is connected to the central support hole (14a). The shaft supporting rods (21a) (22a) of the discharge shaft holding (21) (22) of the side sorting roller (2b) (2c) are connected to the shaft connecting hole of the front and rear connector and the shaft connecting hole of the moving nut connector, which are exposed through the narrow guide holes (14b) (14c) on the front and rear sides, thereby connecting the discharge shaft holding (21) (22) of the side sorting roller (2b) (2c) to the discharge side of the sorting roller. The gap can be widened and narrowed, and sea squirts are discharged between the discharge shaft holders (20)(21)(22) and received in a sea squirt collection container along the inclined plate (15) formed on the outer side of the storage case, and a crushing chamber (17a) is placed in the lower discharge section (16a) of the foreign matter guide plate (16) formed below the foreign matter discharge gap (2d) of the sorting roller, and a driving shaft (17b) and a driven shaft (17c) that rotate by a hydraulic motor (17') are installed to rotate facing each other inside the crushing chamber (17a).This is a sea squirt sorter configured to interlock a crusher (17) having crushing blades (17d) formed on the outer surfaces of a driving shaft and a driven shaft, so that foreign matter falling onto a foreign matter guide plate (16) can be crushed and discharged to a conveyor (18). Explanation of the symbols

[0035] 1 : Screening main body 1a : Supply unit 1b: Sorting section 1c: Fixing hole 1d,1e : Rectangular guide hole 2 : Sorting roller 2' : Rotation axis 2" : Chain sprocket 2a: Central sorting roller 2b, 2c: Side sorting rollers 2d : Foreign object discharge interval 3,3a : Guide bar 4 : Mover 4a, 4b : Guide holes 4c : Shaft holder 5 : Drive chain 6 : Extension connector 6' : "×" shaped connector 6a, 6b : Moving nut 8 : Center connector 8',8" : connecting piece 8a : central connecting hole 8b : External connecting hole 8c : Central connecting shaft 8c' : Shaft holder connector 9 : Front and rear connector 9',9" : connecting piece 9a : central connecting hole 9b : External connecting hole 9c : Central connecting shaft 9c' : Shaft holder connector 10 : Moving nut connector 10',10" : Connecting piece 10a : Moving nut connecting shaft connecting hole 10b : Inner connecting hole of movable nut 11, 11a : Movable nut 11b : Moving nut connecting shaft 11b' : Shaft holder connecting hole 12: Actuating shaft 12a: Left-hand thread section 12b : Usasabu 13 : Storage case 13a, 13b: Front and rear shaft holders 14: Lid 14a: Central support hole 14b, 14c: Narrow guide hole 15 : Inclined plate 16 : Foreign object guide plate 16a : Bottom discharge section 17 : Shredder 17' : Hydraulic motor 17a : Crushing chamber 17b : Driving shaft 17c : Driven shaft 17d : Shredder blade 18 : Conveyor 20, 21, 22: Discharge shaft holder 20a, 21a, 22a: Shaft holder support rod a : Supply side sorting roller gap adjustment device b : Discharge side sorting roller gap adjustment device P : Connecting pin Ga : Flexible connector

Claims

Claim 1 A sorting section is formed on the upper surface of the sorting main body (1) with a rectangular opening, such that the supply section (1a) for supplying agricultural and marine products to be sorted is higher. A multi-row sorting roller (2), with a screw formed on the outer surface of the rotation axis, is installed at the same height in the sorting section (1b). The sorting rollers are arranged such that a central sorting roller (2a) is positioned in the center, and several side sorting rollers (2b) (2c) are positioned on both sides, so that a foreign matter discharge gap (2d) is formed between the sorting rollers. A sorting roller gap adjustment device is installed so that the gap on the supply side is selected to be narrow and the gap on the discharge side is selected to be wide. The supply side sorting roller gap adjustment device (a), installed in the supply section of the sorting rollers, forms rectangular guide holes (1d) (1e) on both sides of a fixing hole (1c) that supports the rotation axis of the central sorting roller, thereby protruding the rotation axis of the side sorting rollers, and the rectangular guide holes Upper and lower guide bars (3)(3a) are installed on the upper and lower sides, and guide holes (4a)(4b) through which the guide bars pass are drilled on the upper and lower sides to allow movement along the guide bars, and a movable member (4) is arranged to be coupled to the guide bars. A shaft holder (4c) is formed in the middle of each movable member to which the rotational shaft (2') of the sorting rollers is fitted. A chain sprocket (2") is attached to the protruding end of the rotational shaft, and a drive chain (5) is connected to the chain sprocket of each sorting roller to rotate the sorting rollers. Moving nuts (6a)(6b) are attached to both ends of an "×" shaped connector (6') formed by connecting connecting pieces of the same length in an "×" shape at the lower end of the movable member. Both ends are supported by a shaft holder installed in the front and rear directions on the outer wall of the machine body, allowing for manual rotation in place. A left screw part (12a) and a right screw part (12b) are symmetrically formed on the front and rear of the bar body. An operating shaft (12) is installed, and the moving nuts (6a) (6b) of an "×" shaped connector are screw-coupled to the left and right screw portions of the operating shaft, thereby forming an extendable connector (6) that directs the front and rear moving nuts of the "×" shaped connector (6') inward or outward toward the central sorting roller as the operating shaft is rotated, thereby forming a supply side sorting roller spacing adjustment device (a) that adjusts the gap of the supply side sorting rollers.The discharge side sorting roller spacing adjustment device (b) comprises a central connector (8) assembled in an "×" shape by stacking two connecting pieces (8') (8") made of a narrow plate body, each having a central connecting hole (8a) formed in the center and outer connecting holes (8b) formed at both ends, and inserting a central connecting shaft (8c) into the central connecting hole; a plurality of front and rear connectors (9) arranged on the front and rear sides of the central connector, each having two connecting pieces (9') (9") made of a narrow plate body, each having a central connecting hole (9a) formed in the center and outer connecting holes (9b) formed at both ends, stacking them vertically and inserting a central connecting shaft (9c) into the central connecting hole (9a) to form an "×" shape; and an inner connecting hole (10b) formed on the outer side of the front and rear connectors, each having a movable nut connecting shaft connecting hole (10a) formed at the outer end and an inner connecting hole (10b) connected to the outer connecting hole (9b) of the front and rear connectors formed at the inner end. A movable nut connector (10) is formed by stacking two connecting pieces (10') (10") made of a narrow plate having a length half the length of the central connector connecting piece vertically, and inserting a movable nut connecting shaft (11b) into a movable nut connecting shaft connecting hole (10a) formed in the movable nut to form a "∨" shape, wherein the upper connecting piece outer connecting hole of the central connector (8) is connected to the lower connecting piece outer connecting hole of the adjacent front and rear connector with a connecting pin (P), the lower connecting piece outer connecting hole of the central connector (8) is connected to the upper connecting piece outer connecting hole of the adjacent front and rear connector (9) with a connecting pin, the upper connecting piece outer connecting hole of the front and rear connector (9) is connected to the lower connecting piece outer connecting hole of the adjacent front and rear connector with a connecting pin, and the lower connecting piece outer connecting hole of the front and rear connector is connected to the upper connecting piece outer connecting hole of the adjacent front and rear connector with a connecting pin. The inner connecting hole of the upper connecting piece of the movable nut connector (10) is connected to the outer connecting hole of the lower connecting piece of the adjacent front and rear connector with a connecting pin, and the inner connecting hole of the lower connecting piece of the movable nut connector (10) is connected to the outer connecting hole of the upper connecting piece of the adjacent front and rear connector with a connecting pin, thereby forming an expandable connector (Ga) in which all connecting pieces are connected in an "×" shape, and a movable nut (11)(11a) is attached to the lower end of the movable nut connecting shaft (11b) of the movable nut connector (10) which is positioned at the front and rear of the expandable connector (Ga).A shaft connecting hole (8c')(9c')(11b') is formed at the center of the central connecting shaft (8c) of the central connector (8), the central connecting shaft (9c) of the front and rear connector (9), and the movable nut connecting shaft (11b) of the movable nut connector (10), and the retractable connector (ga) is stored in a storage case (13) attached to the upper outer wall of the sorter discharge section, and a front and rear shaft holding member (13a)(13b) equipped with bearings is installed on the front and rear of the storage case, and an operating shaft rod (12) is installed to rotate in place on the front and rear shaft holding members (13a)(13b), and a left screw part (12a) and a right screw part (12b) are symmetrically formed on the front and rear of the operating shaft rod, and the left screw part and the right screw part of the operating shaft rod are coupled to a screw hole formed in the movable nut (11)(11a) of the movable nut connector (10). Depending on the direction in which the operating shaft rod is rotated, the moving nut moves to cause expansion and contraction that is inward toward the central connecting shaft of the central connector or outward in the opposite direction. A lid (14) is placed on the upper surface of the storage case (13), and a central support hole (14a) is drilled in the center of the lid to communicate with the shaft connecting hole of the central connector (8). Narrow guide holes (14b) (14c) are formed on the front and rear sides of the central support hole. The shaft supporting rod (20a) of the discharge shaft holding (20) of the central sorting roller (2a) is connected to the central support hole (14a). The shaft supporting rods (21a) (22a) of the discharge shaft holding (21) (22) of the side sorting roller (2b) (2c) are connected to the shaft connecting hole of the front and rear connector and the shaft connecting hole of the moving nut connector, which are exposed through the narrow guide holes (14b) (14c) on the front and rear sides, thereby connecting the discharge shaft holding (21) (22) of the side sorting roller (2b) (2c) to the discharge side of the sorting roller. The gap can be widened and narrowed, and sea squirts are discharged between the discharge shaft holders (20)(21)(22) and received in a sea squirt collection container along the inclined plate (15) formed on the outer side of the storage case, and a crushing chamber (17a) is placed at the lower discharge part (16a) of the foreign matter guide plate (16) formed below the foreign matter sorting gap (2d) of the sorting roller, and a driving shaft (17b) and a driven shaft (17c) that rotate by a hydraulic motor (17') are installed facing each other and rotated inside the crushing chamber (17a).A sea squirt sorter configured to crush and discharge foreign matter falling onto a foreign matter guide plate (16) by engaging a crusher (17) having crushing blades (17d) formed on the outer surface of a driving shaft and a driven shaft.

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