JP2016106549A - Shellfish transfer device in automatic puncher of bivalve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shellfish transfer device that makes the transfer of the transported shellfish to a turntable quickly and smoothly to thereby improve the efficiency of perforation, and improves the positioning accuracy of the transferred shellfish to thereby perform the perforation accurately.SOLUTION: A shellfish transfer device 38 is provided on a turntable part 30, the device that transfers the shellfish transported by a shellfish conveyance unit 20 on a turntable part. The shellfish transfer device comprises rotating rollers 35 provided in a plurality of tables 33 installed on a peripheral surface of a drum 32 of a turntable part rotating intermittently, respectively. The rotating rollers each are rotated when the table is positioned in a transfer position P1, and are rotated intermittently so as to become a rotation stop when the table is positioned in a perforation position P2. The rotating roller serves as a second positioning post 35 when becoming the rotation stop. The rotating roller obtains a rotational driving force by a slit plate 36 rotatably installed outside of a drum and being pressed in the transfer position.SELECTED DRAWING: Figure 11

Description

  The present invention relates to aquaculture of bivalves such as scallops, and more particularly to a shell changing device for a machine that drills a hole for inserting a locking pin into an ear-like projection of a shell.

  As shown in FIG. 14, for example, the scallop 1 has the shell-like protrusion 3 of the shell in a state where the two shells overlap each other for the most part, but only one shell is on one side of the ear-like protrusion 3. The part (one piece part 3c) consisting of always exists. As shown in FIG. 15, the scallop 1 is cultivated by inserting a locking pin 5 into the lug 3 and piercing the cultivating rope 7 and suspending the cultivating rope 7 in the sea. Here, whether to insert the locking pin 5 into the two-piece portion 3b or the one-piece portion 3c in which the two shells of the ear projection 3 are overlapped is not considered from both the viewpoint of shell growth and work efficiency. It is an important problem that must not be.

  "Opening one" is advantageous for scallop growth because it is difficult to damage the scallop mantle, it does not force the ligament when drilling, and it is easy for the scallop to open its mouth during predation. It has been known.

  On the other hand, since the locking pin 5 is drilled in the larvae, from the viewpoint of work efficiency, “two sheets” are drilled in the two-part portion 3b rather than “one-piece opening” in which the small-area part 3c is drilled. "Open" is better. However, recently it has been avoided to open two sheets, which may cause shell growth failure or drowning, and it is desirable to open one.

  Opening one is very difficult for the following reasons. First, the perforated part is a single piece portion 3c that is slightly present in the shell-like projection 3 of the shell, and the single piece portion 3c is even smaller because the target shell is a juvenile shellfish. For example, a diameter of about 2 mm is appropriate for a 6 cm juvenile shellfish. In addition, the shell has an irregularly curved shape and is slippery and difficult to position because it is wet with seawater.

  If the drilling fails, the shell-like projections 3 of the shell may be damaged, causing a so-called “shell crack” phenomenon, making it unsuitable for aquaculture or causing breakage of the tool.

  By the way, the scallop 1 has the front and back sides, and the black side is the front side and the white side is the back side. Adherents such as parasites often adhere to the surface, and these parasites adhere unevenly and hard to the shell surface, forming large irregularities on the shell surface. For this reason, when punching by pressing the surface of the shell, the shell 1 may be repelled by the attached matter, and the holding of the shell 1 is not stable. Therefore, it has been necessary to work after hitting off these deposits.

  Therefore, for example, an apparatus has been attempted in which shells are placed on a conveyor conveyor in an inclined state, and the shells are conveyed and perforated by pressing the shells from above using the weight of the shells.

  However, even in such an apparatus, when the surface of the shell during transportation contacts the screw of the conveyor, the shell is blown off and the operation becomes impossible. Therefore, it is insufficient to fix stably depending on such an apparatus, and the above-described drawbacks cannot be solved.

  The present invention is a further improvement of the bivalve automatic punching machine, and particularly improves the instability when the shellfish is transferred from the shell conveyance section to the turntable section.

  More specifically, when the shells transported from the shell transport unit are transferred to the table of the turntable unit, the shells cannot be replaced or become defective if the shells slip poorly.

  In the shell, the jagged edges of the shell, that is, the ventral side edge 4b and the side edge 4a are not uniform, and the unevenness of the jaggedness or dust attached to the shell makes the shell slip worse.

  As a countermeasure against this point, for example, it is conceivable to uniformly process the periphery of the shell, but this is not a practical option because it takes time and effort.

  For example, if the periphery of the shell is cut or polished, there is a harmful effect on the growth of the shell.

  Previously, shells were transferred using the momentum when carrying shellfish and the movement of the center of gravity of shells, and no special measures were taken to correct delivery and positioning. Stopped and set the shell in the drilling position. For this reason, the drilling efficiency was greatly reduced.

  If the surface of the shell has impurities or the appearance is not clean, it is difficult to transfer easily, and if it is drilled in an inappropriate place or no hole is drilled, it will fail. The rate of failure increases.

  In practice, the operator often keeps working without noticing such bad shellfish such as inappropriate drilling or non-piercing. When such a lot of defective shellfish are mixed, the work efficiency is remarkably lowered when attaching the shellfish to the aquaculture rope.

Japanese Patent Publication No. 8-4435

  In view of the above background, an object of the present invention is to improve the perforation efficiency by quickly and smoothly transferring the shellfish that have been conveyed to the turntable.

  Another object of the present invention is to improve the positioning accuracy of the shells that have been transferred and to accurately perforate.

In order to achieve the above object, a shell changing device for a bivalve automatic punching machine according to the present invention comprises a shell transporting section for transporting a shell put in and a turntable section for moving the shell to a drilling position, and the shell of the shell of the bivalve shell In a bivalve automatic punching machine that drills holes for attaching shellfish to a rope for aquaculture on a ridge, a shell changing device is provided on the turntable to transfer shells transported by the shell transporter to the turntable The shell changing device is composed of rotating rollers respectively provided on a plurality of tables installed on the peripheral surface of the drum of the turntable portion that rotates intermittently, and the rotating roller is located at a position where the table is changed. It is rotated when it is positioned at the position, and it is rotated intermittently so as to stop the rotation when the table is positioned at the punching position.
Further, in the shell changing device of the bivalve automatic perforator according to claim 1, the rotating roller also serves as a second positioning post when the rotation is stopped.
Further, in the shell changing apparatus of the bivalve automatic perforator according to claim 1 or 2, the rotation roller is configured such that a slit plate that is rotatably installed on the outside of the drum is pressed at the transfer position, and a rotational driving force is applied. It is characterized by obtaining.
Further, in the shell changing apparatus of the bivalve automatic perforator according to claim 3, the slit plate has a plurality of slits provided toward a center direction, and the slit is formed on a circumference of an edge portion of the slit plate. It is provided along.
Further, in the shell changing device of the bivalve automatic punching machine according to claim 3, the rotation axis of the slit plate is eccentric with respect to the rotation axis of the drum.
Further, in the shell changing apparatus of the bivalve automatic punching machine according to claim 3, the rotation axis of the slit plate is provided coaxially with the rotation axis of the drum.
Further, in the shell changing device of the bivalve automatic perforator according to claim 1 or 2, the rotating roller obtains a rotation driving force at a transfer position by a driving source different from the driving force of the drum. To do.
Further, in the shell changing apparatus of the bivalve automatic punching machine according to claim 1, the rotating roller has a knurled groove formed in an axial direction.

  The shell 1 that is sent out from the shell transporting part and replaced is the bottom edge 3d of the ear-shaped protrusion 3 formed in a straight line hits the rotating roller, and the rotation of the rotating roller causes the ventral side edge and the front end portion of the side edge. 4c is forcibly moved until it abuts on the first positioning post, which affects the shell features such as deposits on the surface of the shell and the peripheral shape of the shell (the side edge 4a of the shell and the ventral side edge 4b of the shell). It can be quickly and smoothly transferred to the turntable without receiving it.

  Further, since the transfer work does not depend on the inertial force or the like at the time of transporting the conveyor, and is based on the rotational force of the rotating roller, the accuracy of movement at the transfer position is improved. Therefore, the positioning accuracy of the drilling in the drilling process following the transfer process is improved.

It is a front view of the whole bivalve automatic punching machine concerning the present invention. It is a left view of FIG. It is a top view of FIG. (A) is a partially cutaway enlarged view of the portion IV in FIG. 2, and (B) is an enlarged view considering an actual angle at the time of shell transportation in (A). (A) is an enlarged view of a portion V in FIG. 4, (B) is a view in consideration of an actual angle when changing shells in (A), and (C) is an enlarged view of a portion C in (A). (A) is the VI section enlarged view of FIG. 1, (B) is the same top view. It is a top view when a shellfish is changed in a transfer position, (A) shows the state before completion of positioning, (B) shows the state after completion of positioning. It is a front view when a shellfish comes to a drilling position. It is a right view of FIG. It is a principal part enlarged view of FIG. It is an exploded top view when a shellfish is changed in a transfer position. It is a figure explaining the rotation mechanism of a rotating roller when a shellfish is changed in a transfer position. (A) is a front view which shows the other Example of a knurling rotation mechanism, (B) is a top view of (A). It is a top view of a scallop. It is a figure which shows the state of cultivation of a scallop. It is a top view of a scallop, (A) shows an ideal-shaped shell, (B) shows an unusual shell, (C) shows other unusual shells. It is a figure explaining a conveyance process, (A) shows the conveyance process by this invention, (B) (C) shows each conveyance process by comparison.

  Next, the shell changing device of the bivalve automatic punching machine 10 according to the present invention will be described in more detail with reference to the drawings showing embodiments. For convenience, portions having the same function are denoted by the same reference numerals and description thereof is omitted.

  The bivalve automatic punching machine 10 includes a shell transporting part 20, a turntable part 30, a pressing part 40 and a punching part 50.

The shell transport unit 20 is composed of a rotating conveyor 21. The conveyor 21 is provided on a conveying path 20a having an upward slope of α ° (shown in FIG. 4A, α = 7 ° in the illustrated embodiment) toward the conveying direction, and an arrow R _{1 is} driven by a drive wheel 22. Rotate in the direction. The conveyance path 20a is provided with an inclination (45 ° in the illustrated embodiment) as best shown in FIG. Conveyor chain 23 for intermittently rotated in the opposite direction (arrow R ₂ direction) to the conveying direction of the conveyor 21 is provided in the conveyance path 20a, the chain link 23a of the conveying chain 23, scallops being transported 1 A correction plate 25 for correcting the transport posture is attached. Reference numeral 24a denotes a driving wheel of the conveying chain 23, and 24b denotes a driven wheel.

The correction plate 25 has an attachment portion 25a attached to the chain link 23a of the transport chain 23 via an attachment 23b and a correction surface 25d having an obtuse angle β (FIG. 5C. In the illustrated embodiment, β = 140 °. ) And an inclined portion 25b in which the correction surface 25d is provided in a direction opposite to the rotation direction of the conveyor 21, a lower end portion is continuous with the mounting portion 25a, and an upper end portion is the inclined portion. It consists of the standing part 25c which continues to 25b. The upright portion 25c is formed at a height H less than ₂ lugs 3 Shell 1 (lugs height H ₂ of the standing part high H ₁ <shellfish) whose height H ₁ is conveyed. The otic protrusion height H ₂ of the shell is set to the minimum height of the shell 1 to be loaded and transported.

  A conveyance guide 27 guides the conveyance path 20a. The conveyance guide 27 is fixed to an L-shaped metal fitting 27a as shown in FIG. 4B, and the upper part is opened to serve as an insertion port 29 through which the scallop 1 is introduced. The scallop 1 is inserted from the insertion port 29 with the surface facing upward.

  A turntable unit 30 is provided adjacent to the shell conveying unit 20. The turntable unit 30 includes a turntable 31 and is installed orthogonal to the conveyor 21. The turntable 31 includes a plurality of (eight in the embodiment) tables 33 attached to the peripheral surface of a circular drum 32 that rotates intermittently. Each table 33 is a flat plate, and as shown in FIGS. 7A and 7B, a first positioning post 34 and a second positioning post 35 constituting a shell changing device 38 are provided upright on the upper surface. To do. A drilling portion 39 where the drill 51 moves downward is formed between the first positioning post 34 and the second positioning post 35.

  The first positioning post 34 is a relatively large-diameter stainless steel post formed in a hollow cylindrical shape, and a circular surface 34e is formed on the scallop 1 side. The first positioning post 34 forms point a that contacts the side edge 4a of the shell and point b that contacts the side surface of the front ear projection 3a. The second positioning post 35 forms a point c that contacts the lower end edge 3d of the rear-ear-like projection 3b of the shell. A shell pressing groove 34 a made of a horizontal jagged surface is formed on the peripheral surface portion of the first positioning post 34. The second positioning post 35 is a stainless steel post formed of a rotatable rotating roller and formed in a cylindrical shape. The second positioning post 35 is provided side by side with the first positioning post 34 such that the lower end edge 3d of the ear-shaped protrusion 3 is in sliding contact with the rear ear-shaped protrusion 3b. A knurled groove 35 a is formed in the axial direction on the peripheral surface of the second positioning post / rotary roller 35.

  The second positioning post / rotating roller 35 is provided on each of a plurality of tables 33 installed on the peripheral surface of the drum 32 that rotates intermittently, as shown in FIGS. The table 33 is rotated when it is located at the transfer position P1, and is intermittently rotated so that the rotation is stopped when the table 33 is located at the punching position P2. That is, as shown in FIGS. 5A and 12, the slit plate 36 is rotatably installed on the outside of the drum 32, and when the shell 1 comes to the transfer position P1, the slit is made by the pressing roller 37. Since the plate 36 is pressed and deformed, the rotational force is transmitted to the rotating roller 35 through the slit 36a (shown in FIG. 6A). The shell changing device 38 includes the rotating roller 35, the slit plate 36, and the pressing roller 37. The slit plate 36 is provided with a slit 36a formed of a long groove along the circumference of the edge portion. Reference numeral 36 b denotes a rotation shaft of the slit plate 36, which is provided eccentric to the right side of FIG. 6A with respect to the rotation shaft 32 a of the drum 32.

  The pressing unit 40 includes a first pressing unit 41 and a second pressing unit 44.

  As shown in FIGS. 8 and 9, the first pressing means 41 is made of a stainless steel plate formed in the shape of a tongue piece and is rotatable in forward and reverse directions. The first pressing means 41 comes into contact with the ventral side edge 4b of the shell when the scallop 1 reaches the horizontal piercing position P2 indicated by "1b" in FIG. Press in the linear direction indicated by arrow X in (A). The lower part 41a of the first pressing means 41 is bent, and the bent lower part 41a is provided with a shell presser 41b made of a frame projecting in the direction of the shell for suppressing the ventral side edge 4b of the shell from above. 42 is an elevating body to which the first pressing means 41 is locked, and moves the first pressing means 41 in the scallop 1 direction when moving downward. Reference numeral 43 denotes a tension spring that returns the first pressing means 41 to its original position.

  As shown in FIGS. 7B and 8, the second pressing means 44 has a metal pressing surface portion 45 attached to a plate 44a made of stainless steel, and is rotatable in forward and reverse directions. The second pressing means 44 rotates in the direction indicated by the arrow Y in FIG. 7B when the scallop 1 reaches the horizontal drilling position P2 indicated by “1b” in FIG. 5B. The pressing surface portion 45 comes into contact with the side surface of the rear ear projection 3b. The pressing surface portion 45 is formed with a horizontal pressing groove 45a made of a jagged surface on the pressing surface that comes into contact with the rear ear projection 3b. The second pressing means 44 has a cam follower 46, and rotates in the forward and reverse directions when the cam follower 46 makes contact following the rotating cam 47. 48 is a tension spring that urges the second pressing means 44 toward the scallop 1, and 49 is a bearing of the rotating shaft 44 b of the second pressing means 44.

  As shown in FIGS. 8 and 9, the perforated part 50 includes a drill 51 that moves up and down. Reference numeral 52 denotes a motor for rotating the drill 51. The drill 51 moves downward after drilling after the scallop 1 is positioned and fixed at a predetermined drilling position P2 of the turntable 31.

  Reference numeral 61 denotes a transfer guide that can be moved up and down and is provided directly above the transfer position P1 formed in the turntable 30. As shown in FIG. 10, the transfer guide 61 is provided with a guide plate 63 inclined at a predetermined angle at the lower end portion, and can be moved up and down as a whole. The transfer guide 61 waits at the upper limit position when changing the shell 1a, descends immediately before the turntable 31 rotates, and is at the lower limit position when the turntable 31 rotates. FIG. 10 shows a state in this lower limit position. Shells are transported at the same time as drilling. The shell changing operation is performed when the transfer guide 61 is at the upper limit position indicated by the alternate long and short dash line in FIG. 10, that is, while the turntable 31 is stopped and the shell 1a is not in the transfer position P1. When the shell of the shellfish whose mouth is opened comes into contact with the guide plate 63, the shell closes its mouth by itself, thereby guiding the shell 1a. Reference numeral 65 denotes a spring attached to the transfer guide 61 and urged in the shell direction. For example, when two shells enter the change-over position P1, the guide plate 63 is avoided upward to prevent damage to the device.

  The scallop 1 introduced with the surface A upward from the introduction port 29 of the shell introduction range T is supplied to the turntable 31 by the conveyor 21 (FIGS. 4A and 4B). When transported by the conveyor 21, the scallop 1 a (shown in FIGS. 5A and 5B) whose posture is adjusted to the proper posture by the correction plate 25 is transferred onto the table 33. This transfer will be described in detail later.

  As the turntable 31 rotates, the scallop 1a comes to the drilling position P2 indicated by “1b” in FIG. At this time, the scallop 1b is in a horizontal state, but accurate positioning will be described in detail in the transfer step described later.

  Next, the first pressing means 41 moves downward to hit the ventral side edge 4b of the shell, and presses the scallop 1 in the direction of the first positioning post 34 and the second positioning post 35 (FIGS. 8 and 9).

  At the same time, the second pressing means 44 rotates and hits the lateral end of the rear-ear-like projection 3b of the shell, and presses the shell in the direction of the first positioning post 34 (FIG. 7B).

  The shells supplied to the turntable 31 have various supply conditions such as size, shape, and posture, and are not necessarily in contact with each contact point of the positioning post as ideal.

  That is, the scallop 1 is the sum of the points a and b of the first positioning post 34 and the point c of the second positioning post 35 by the pressing of the first pressing means 41 and the second pressing means 44. It is desirable to contact at three points. However, since there are various supply conditions, the first pressing means 41 should contact the point a of the first positioning post 34 and the point c of the second positioning post 35. It may be abutted at a point.

  Even in such a case, since the second pressing means 44 presses the front ear-like projection 3a of the scallop 1, when the shell 1 is in contact with the point c, it is guided to slide at the point c. The direction is slightly corrected and abuts the first positioning post 34 at two points.

  Therefore, the scallop 1 is reliably positioned at a predetermined position.

  In this state, since the scallop 1 is continuously pressed by the first pressing means 41 and the second pressing means 44, the scallop 1 is stably fixed at a predetermined position.

  In such a state, the drill 51 moves downward to pierce a predetermined piercing portion 39 of the one-piece portion 3c of the shell-like protrusion 3 of the shell. Thereby, the locking hole 2 (shown in FIG. 14) for inserting the locking pin 5 is formed. This point will also be described later.

  The perforated scallop 1 (shown as “1c” in FIG. 5B) is dropped and carried out by the rotation of the turntable 31. Note that the rotation of the turntable 31 is stopped during the positioning and drilling.

  Here, the conveyance process and the transfer process described above will be described in detail.

  First, the conveyance process will be described with reference to FIGS. The side edge 3e of the ear-shaped protrusion 3 of the scallop 1 does not necessarily have an upright line as shown in FIG. 16 (A), and the lower end corner 3f is rounded as shown in FIG. 16 (B). Or the side edge 3e is inclined as shown in FIG. The conveyance of the scallop 1 having such an irregularly shaped ear-like protrusion 3 is difficult to correct. That is, in the case of the jig 25 ′ without the standing part 25 c of the correction plate 25 as in the present invention, when the bent part 25 f is set at a high position from above the conveyor 21, the conveyor 21 rotates to the left in the figure, and the jig 25 ′ Moves to the right in the figure, so that the shell 1 whose posture is to be corrected by rotation tries to bite between the conveyor 21 and the jig 25 ′ as shown by the arrows, which makes the jig 25 ′ unreasonable. There is a risk of damage (FIG. 17B). On the other hand, when the bent portion 25f is set at a low position from above the conveyor 21, the conveyor 21 rotates to the left in the figure and the jig 25 'moves to the right in the figure. May not be stable and the shell 1 may continue to rotate (FIG. 17C).

  On the other hand, in the present invention, since there is an upright portion 25c, as shown in FIG. 17 (A), even if the shape of the side edge 3e of the ear-shaped protrusion 3 is irregular, the shape is not affected. Posture correction is possible. In addition, as the standing portion 25c of the correction plate 25 rises from above the conveyor 21, the correction plate 25 tends to maintain the aligned state of the shells 1, so that the correction posture can be stabilized. Further, since the shell is set at a predetermined transfer position regardless of which direction it is inserted, the positioning accuracy of the transfer can be improved, and anyone can drill the shell by a simple operation. This makes it possible to stably perform long-time drilling operations.

  The next transfer process will be described in detail with reference to FIG. In the shell 1 (FIG. 11 (A)) that is moved onto the table 33 by pressing the back ear projection 3b by the standing portion 25c of the correction plate 25, the front ear projection 3a moves forward, so the front ear projection 3a. The lower edge 3d is in contact with the rotating roller 35 (FIG. 11B). The scallop 1 with the lower edge 3d in contact with the rotating roller 35 is fed forward by the rotating roller 35 because the rotating roller 35 is rotating (FIG. 11C), and the front ear-shaped projection 3a is It moves on the table 33 to the right in the figure until it abuts on the first positioning post 34 that functions as a stopper (FIG. 11D).

  Based on FIG. 12, the mechanism of rotation of the rotating roller 35 will be described. When the pressing roller 37 presses the slit plate 36 at the transfer position P1, the slit plate 36 is deformed to the rotating roller 35 side, so that the rotational force is transmitted to the rotating roller 35 side through the slit 36a of the slit plate 36. Is done. Thereby, the rotation roller 35 rotates.

  Since the lower edge 3d of the scallop 1 of the scallop 1 is formed in a straight line, the shell surface deposits and the peripheral shape of the shell (shell side edge 4a and shell belly side edge 4b) The rotating work can be completed quickly and smoothly by the rotating roller 35 without being affected by the feature.

  When the shell 1 forcedly moved by the rotating roller 35 hits the first positioning post 34, the first positioning post 34 functions as a stopper, so that there is no further advance and the shell 1 is set at a predetermined transfer position. Therefore, it is possible to improve positioning accuracy for transfer.

  Further, since the transfer work does not depend on the inertial force or the like at the time of conveyance of the conveyor 21 and is based on the rotational force of the rotating roller 35, the movement accuracy at the transfer position is improved. Therefore, the positioning accuracy of the drilling in the drilling process following the transfer process is improved.

  In FIG. 10, for example, when the shell of the shell at the transfer position P <b> 1 is “open”, when the shell of the shell that has opened the mouth comes into contact with the guide plate 63 as the turntable 31 rotates, the shell opens itself. Since it closes, the shell 1 does not interfere anywhere in the drilling device such as the drill 51. Therefore, the turntable 31 can be rotated from the transfer position P1 to the punching position P2.

  Here, the positioning and fixing of the scallop 1 will be described. Since the scallop 1 is pressed from different directions by the first pressing means 41 and the second pressing means 44, it is supported at three points by adding three contact points of the positioning posts 34 and 35 and contact by the pressing means 41 and 44. By this, it is firmly fixed to the predetermined transfer position on the table 33 and the punching position P2.

  Therefore, an accurate perforation can be ensured and one piece can be opened which is advantageous for the growth of the scallop 1.

  Further, the “positioning” by the three contact points and the “fixing of the shell 1” by the five subsequent contact points are continuously performed, so that the working efficiency is improved.

  Here, the posture correction of the shell at the time of drilling will be described based on FIGS. When the drill 51 comes into contact with the piercing portion 39 of the ear-like protrusion 3 and piercing starts, the scallop 1 has a spherical shape and has only one contact point with the table 33, so it tries to rotate clockwise. However, in the scallop 1, the tip of the periphery of the shell is eaten in the shell pressing groove 34 a of the first positioning post 34 and the shell pressing groove 45 a of the second pressing means 44, and the shell pressing 41 b of the first pressing means 41. This suppresses the upward recoil movement during drilling. Therefore, the recoil action such as tilting or wobbling of the shell 1 during drilling is prevented, so that the drilling is stabilized.

  Therefore, the scallop 1 can be prevented from shaking during drilling.

  The surface of the introduced scallop 1 is not pressed until it reaches the transfer position P1 and the punching position P2 of the turntable 31 from the conveyance path 20a. Therefore, at the time of conveyance or drilling, the work can be performed without being substantially affected by the above-mentioned deposits and without applying stress to the scallop 1. That is, the scallop 1 can be stably held and drilled accurately.

  The present invention is not limited to the embodiment described above. For example, the shell to be perforated is not limited as long as it is a bivalve.

  FIG. 13 shows another embodiment relating to the rotating mechanism of the rotating roller 35. In this case, the rotating roller 35 that has reached the transfer position P1 is rotated via a pulley 69 by a motor 67 different from a motor (not shown) that rotates the drum 32.

  When the correction plate 25 is attached to the chain conveyor 23 that rotates in the same direction as the conveyor 21, the correction surface 25 d of the correction plate 25 is attached in the direction opposite to the rotation direction of the conveyor 21 to correct the posture of the shellfish. can do.

  The slit plate 36 can be provided coaxially with the rotating shaft 32 b of the drum 32.

  The uphill angle α of the conveyor 21 can be other angles.

  The inclination angle β of the inclined portion 25b of the correction plate 25 can be set to another angle.

  The inclination angle of the conveyance path can also be set to other angles.

  The pressing by the second pressing unit 44 may be a linear direction similar to the first pressing unit 41 and may be a direction orthogonal to the pressing direction of the first pressing unit 41. In this case, refer to a postscript about the press aspect of the 2nd press means 44. FIG.

  The shape and pressing mode of the first pressing means 41 are not limited. For example, a push bull solenoid, a rotary solenoid, an air cylinder, an electric cylinder or the like may be used. However, the machine as in the above embodiment is preferable because it is more reliable and lower in cost.

  The positioning post can be formed of a single member that is in contact with three points. Further, the table 33 and the positioning posts 34 and 35 may be integrally formed.

  The first positioning post 34 and the second positioning post 35 may be solid.

  The direction of the shell to be positioned and fixed is arbitrary. For example, the shell can be perforated in a vertical state.

  Further, the member for positioning and fixing the shell is not limited to a flat shape such as a table.

  It is also possible to give order to the work procedures of the first pressing means 41 and the second pressing means 44. For example, when the turntable 31 rotates and stops at the piercing position P2, the first positioning post 34 and the first positioning post 34 are first pressed while the scallop 1 tries to jump out to the discharge side by the centrifugal force by the first pressing means 41. 2 may be pressed to the positioning post 35 side, and the posture of the scallop 1 may be finally corrected by the second pressing means 44.

  The bivalve automatic punching machine according to the present invention is particularly effective for drilling the one-piece portion 3c of the ear-like protrusion, but does not prevent application to the drilling of the two-piece portion 3b.

  The present invention can be used for the cultivation of bivalves such as scallops.

DESCRIPTION OF SYMBOLS 1 Scallop 2 Locking hole 3 Ear projection 3a Front ear projection 3b Rear ear projection 3c Single piece part 3d Bottom edge 3e Side face 3f Bottom corner 4a Shell side edge 4b Shell belly side edge 4c Front end part 5 Stop pin 7 Cultivation rope 10 Bivalve automatic punching machine 20 Shell transport part 20a Transport path 21 Conveyor 22 Drive wheel 23 Chain conveyor 23a Chain link 23b Attachment 24a Drive wheel 24b Driven wheel 25 Correction plate 25a Mounting part 25b Inclined part 25c Standing part 25d Correction surface 25f Bending portion 27 Conveying guide 29 Loading port 30 Turntable portion 31 Turntable 32 Drum 32b Rotating shaft 33 Table 34 First positioning post 34a Shell holding groove 35 Rotating roller and second positioning post 35a Knurling groove 36 Slit plate 36a slit 3 b Rotating shaft 37 Pressing roller 38 Shell changing device 39 Punching portion 40 Pressing portion 41 First pressing means 41a Bent lower portion 41b Shell presser 42 Lifting body 43 Spring 44 Second pressing means 44a Plate 44b Rotating shaft 45 Pressing surface portion 45a Shell pressing groove 46 Cam follower 47 Cam 48 Spring 49 Collar 50 Drilling part 51 Drill 52 Motor 61 Transfer guide 63 Guide plate 65 Spring 67 Motor 69 Pulley

Claims (8)

A bivalve automatic punching machine that has a shell transporting section that transports the shells that have been thrown in and a turntable that moves the shells to the drilling position, and drills holes for attaching the shells to the aquaculture rope in the ear-like projections of the bivalve shells. In
The turntable unit is provided with a shell changing device for transferring the shells conveyed by the shell conveying unit to the turntable unit,
The shell changing device is composed of rotating rollers respectively provided on a plurality of tables installed on the peripheral surface of the drum of the turntable portion that rotates intermittently,
The rotary roller is rotated when the table is positioned at the transfer position, and is rotated intermittently so that the rotation is stopped when the table is positioned at the punching position. Change device.   2. The shell changing apparatus for an automatic bivalve punch according to claim 1, wherein the rotating roller also serves as a second positioning post when the rotation is stopped.   3. The shell changing apparatus for a bivalve automatic punching machine according to claim 1 or 2, wherein a slit plate installed rotatably on the outside of the drum is pressed at the changing position to obtain a rotational driving force. A shell changing device for a bivalve automatic perforator.   4. The shell changing apparatus of the bivalve automatic perforator according to claim 3, wherein the slit plate has a plurality of slits provided toward a center direction, and the slits extend along a circumference of an edge portion of the slit plate. A shell changing device for a bivalve automatic punching machine, characterized in that it is provided.   4. The shell changing apparatus for a bivalve automatic punching machine according to claim 3, wherein the rotation axis of the slit plate is eccentric with respect to the rotation axis of the drum.   4. The shell changing apparatus for an automatic bivalve punch according to claim 3, wherein the rotary shaft of the slit plate is provided coaxially with the rotary shaft of the drum.   3. The shell changing device for a bivalve automatic punching device according to claim 1, wherein the rotating roller obtains a rotational driving force at a switching position by a driving source different from the driving force of the drum. Automatic punching machine shell changing device.   2. The shell changing apparatus for a bivalve automatic punching machine according to claim 1, wherein a knurled groove is formed in the axial direction of the rotating roller.

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