JP2004137045A - Ejecting device for carried article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ejecting device for a carried article capable of contributing to an increase in the processing capacity of physical distribution systems such as an agricultural product sorting device. <P>SOLUTION: A carried article extruding mechanism 25 for extruding a receiving pan P on which produce carried on a conveyor 21 are placed to a pool conveyor part 23A is formed in a 4-joist link mechanism in which extruding member 49a is connected to each other by using a rotating lever 44a and a swing arm 45a. When extrusion parts 51a at the tips of the extruding members 49a are moved so as to draw D-shaped routes while the rotating lever 44a is rotated by one turn, the extruding parts 51a are moved toward the pool conveyor 23A while moving in a carrying direction in an abutting state on the carried article and ejects the receiving pan P. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for discharging a transported article that discharges an article transported by a conveyor from the conveyor to a side thereof at a sorting position set in the conveyor path in a logistics system such as an agricultural product sorting apparatus.
[0002]
[Prior art]
In a distribution system such as an agricultural product sorting apparatus, the transported articles whose sorting classification is transported on the conveyor are discharged to the pool conveyor by the discharging device for each sorting section at the sorting position.
[0003]
As a discharge device used in such a physical distribution system, there is a diverter (diverter) type discharge device shown in FIG. 8 (see Patent Document 1).
[0004]
This diverter-type discharge device, when the transported article G transported in the direction of the arrow by the transport conveyor 1 belongs to a section that is sorted at the sorting position, has a predetermined inclined position from a position parallel to the transport direction of the transport conveyor. The arm-shaped diverter is rotated while moving to the upstream side in the transport direction to block the transport of the transported article by the diverter, and the transported article is moved while being shifted to the pool conveyor 16 side along the inclined diverter, This is to be paid out to the pool conveyor 16.
[0005]
Specifically, the center portion and the rear end portion of the diverter 9 are respectively connected to the tip end portion of the main link 11 and the tip end portion of the turning arm 6 via the base shafts 12 and 10 so as to be rotatable. The arm 6 is rotatable about the vertical rotation shaft 5 on the rear end side, and the rear end portion of the main link 11 is rotatably connected to the distal end portion of the crank arm 8. Further, sub links 13 are rotatably connected between the central portion of the main link 11 and the tip of the rotating arm 6. The crank arm 8 is rotated in one direction by the electric motor 7.
[0006]
When the crank arm 8 rotates in the clockwise direction in the figure, the main link 11 moves from the bottom dead position in the figure toward the pool conveyor 16 side, so that the diverter 9 moves relative to the conveyance direction of the conveyor 1 with the base shaft 11 as a fulcrum. Tilt to increase the tilt angle. At this time, the sub link 13 also moves so as to rotate the rotating arm 6 in the counterclockwise direction in the drawing as the main link 11 moves. For this reason, the position of the base shaft 10 that is the pivot point of the diverter 9 moves to the upstream side in the transport direction as the pivot arm 6 rotates, and also moves to the pool conveyor 16 side. The diverter 9 changes its moving direction to the downstream side in the transport direction at a position slightly before the top dead center, and returns to the original position while drawing a moving locus different from the moving locus in the forward direction. This series of operations is performed by one rotation of the crank arm 8.
[0007]
In addition, other conventional diverter-type discharge devices move the diverter to the pool conveyor side while maintaining the posture in which the discharge surface of the diverter is substantially parallel to the transfer direction of the transfer conveyor at the beginning of the diverter movement, and then the tilt of the diverter The diverter is moved so as to increase the angle, and when returning, the diverter is moved in a direction opposite to the transfer direction of the transfer conveyor, and returns to the original position while drawing a movement track different from the forward movement track. (For example, Patent Document 2).
[0008]
[Patent Document 1]
Reality 3-18420 (Figs. 1 and 5)
[Patent Document 2]
Japanese Patent Publication No. 55-5453 (Fig. 1)
[0009]
[Problems to be solved by the invention]
To increase the processing capacity of transported goods in a logistics system such as an agricultural product sorting device,
(1): Increase the transfer speed of the transfer conveyor,
(2): To narrow the interval of the transported articles transported on this transport conveyor,
(3): Increase the processing capacity of the discharge device,
Etc. are considered.
[0010]
However, the following problems have been pointed out with respect to Patent Documents 1 and 2 described above as the processing capacity of such a logistics system such as an agricultural product sorting apparatus is improved.
[0011]
The discharge device described in Patent Document 1 causes a diverter that is rotated obliquely on a conveyance path of a conveyance conveyor to a conveyance article conveyed on a conveyance conveyor to abut (collision) the conveyance article on the discharge conveyor side. Therefore, the article is easily damaged by the impact at the time of contact, and the impact increases when the speed of the conveyor is increased to improve the processing capacity as described above. In particular, in an agricultural product sorting apparatus that places and transports agricultural products such as melons and rice cakes on a saucer, it is considered that the placement position of the agricultural product with respect to the saucer is shifted or dropped due to an impact.
[0012]
In addition, the transported article conveyed on the transport conveyor comes into contact with a diverter inclined at a predetermined angle, moves along the inclined contact surface of the diverter, and is discharged to the side of the transport conveyor. As a result, the conveyance speed of the conveyed article is reduced by the guidance in the tilt direction by the diverter, and if the distance from the next conveyed article is short, the subsequent conveyed article is discharged at this position. Otherwise, there is a risk that the subsequent transported article will collide with the decelerated transported article being decelerated.
[0013]
Furthermore, since the diverter rotates obliquely from the side of the transfer conveyor toward the transfer conveyor and stops, if there is a preceding transfer article in the rotation area of the diverter, On the other hand, since the diverter may collide during the rotation, it is necessary to make a sufficient distance from the preceding transported article according to the length of the diverter, which is an obstacle to improving the transport capability.
[0014]
On the other hand, the discharge device described in Patent Document 2 can suppress impact due to contact with a transported article by moving the diverter in a posture substantially parallel to the transport direction of the transported article at the initial operation of the diverter. Therefore, the problem caused by the impact with the diverter in Patent Document 1 is solved.
[0015]
However, in the diverter of Patent Document 2, the payout surface is substantially parallel to the transport direction of the transported article at the initial stage of the diverter operation, but thereafter, the diverter is inclined with respect to the transport path in the same manner as the diverter of Patent Document 1. Since it is turned to a predetermined inclination position of the posture and the conveyed article is discharged to the discharge conveyor on the opposite side across the conveyance conveyor while being guided by the diverter, it is continuously conveyed in the same manner as the discharge device described in Patent Document 1. It is necessary to provide a sufficient space between the transported articles, which is an obstacle to improving the processing capability in a logistics system such as an agricultural product sorting apparatus.
[0016]
In addition, the diverter of Patent Document 2 moves from the downstream side in the transport direction toward the upstream side in the return direction in the return process in which the diverter returns the original position from the forward process in which the transported article is dispensed by the diverter. Interference with subsequent transported articles is likely to occur accordingly, and it is necessary to increase the interval between transported articles that are continuously transported, which is an obstacle to improving the processing capability in a logistics system such as an agricultural product sorting apparatus.
[0017]
The first object of the present invention has been made in view of such conventional problems, and an object of the present invention is to provide a discharge device that can contribute to an improvement in the processing capacity of a logistics system such as an agricultural product sorting device.
[0018]
In particular,
(1) To enable delivery of transported articles corresponding to a transport mode in which the distance between transported articles is extremely narrow so that the transport conveyor can be transported even in a close contact state.
(2) It is possible to discharge without damaging the article to be conveyed without giving an impact.
[0019]
The second object of the present invention is to provide a discharge device that can save space along the conveyance direction of a conveyed article.
[0020]
The third object of the present invention is to provide a discharge device that can have a simple configuration.
[0021]
The fourth object of the present invention is to provide a discharge device capable of reducing the cost by individually operating a plurality of discharge mechanisms with one power source.
[0022]
An object of the fifth invention of the present invention is to provide a discharge device capable of realizing versatility that can obtain a stable discharge operation without being influenced by the shape of the conveyed article.
[0023]
[Means for Solving the Problems]
A first aspect of the invention relates to a transporting article discharging apparatus for discharging a transported article transported on a conveyor from the conveyor to the outside of the conveyor at a predetermined sorting discharge position. And an extruding member that extrudes the conveyed article in the discharge direction and moving the extruding member from the retracted position onto the conveyor while being in contact with the conveyed article substantially in synchronization with the movement of the conveyed article in the conveying direction. And a drive mechanism that pushes back the pushing member to the retracted position after the pushing process that moves in the pushing direction as one cycle. The drive mechanism pushes the one cycle on the conveyor. It is possible to operate for each conveyed article to be conveyed.
[0024]
According to the first invention, the extruding member does not suddenly extrude the conveyed article, but abuts against the conveyed article at the tip of the conveying member and pushes while moving in the conveying direction according to the conveyed article. It is possible to smoothly extrude and discharge without giving an impact to.
[0025]
In addition, if one cycle consisting of the extrusion process and the return process is speeded up, it is possible to realize a high-speed discharge process coupled with a smooth discharge operation of the transported articles, and also supports high-speed transport in which transported articles are transported almost without gaps. Thus, the conveyed article can be discharged continuously.
[0026]
The transported article is not limited as long as it can be handled by a distribution system that sorts a large quantity of articles such as cardboard boxes, containers, and agricultural products.
[0027]
The second invention is the first invention described above, wherein the pushing member is formed such that the abutting surface of the pushing member with the carrying article is substantially parallel to the carrying direction of the conveyor at the retracted position. It is characterized by.
[0028]
According to the second invention, since the extruding member does not collide with the transported article at the initial stage of the extruding step, the transported article can be smoothly brought into contact with the transported article, and the transported article can be extruded as it is.
[0029]
A third invention is the above first or second invention, wherein the transporting article extruding mechanism transports a movement trajectory that moves in the extruding direction while moving the tip of the extruding member in the conveying direction in the extruding step. It is characterized by a straight line inclined with respect to the direction.
[0030]
According to the third invention, the transported article is extruded in a form in which the extruded member is addressed to the transported article in the order of the transported article transported on the conveyor. Therefore, it is possible to smoothly discharge the conveyed product.
[0031]
A fourth invention is the above-mentioned third invention, wherein the inclination angle is about 45 degrees.
[0032]
According to the fourth invention, the push member can be operated efficiently, and the apparatus can be made compact.
[0033]
In a fifth aspect of the present invention based on any one of the first to fourth aspects of the present invention, in the return step, the transporting article extruding mechanism rapidly moves the tip of the extruding member in the transporting direction while moving the front end of the conveyor. It is characterized by moving along a curved movement trajectory that moves outward.
[0034]
According to the fifth invention, even if the speed of the extrusion process is adjusted in accordance with the speed of the conveyed article, the speed of the return process can be increased and the time required for one cycle can be shortened. Is possible. Moreover, it can avoid that an extrusion member interferes with the conveyance article conveyed next, the conveyance speed of the conveyance article by a conveyor can be raised, and the improvement of discharge processing can be aimed at as a result.
[0035]
In a sixth aspect based on any one of the first to fifth aspects, the conveying article push-out mechanism moves the tip of the push-out member along a substantially D-shaped trajectory in the one cycle. Features.
[0036]
According to the sixth aspect of the invention, the drive in the extrusion process of the extrusion member in accordance with the conveyance speed of the conveyed article, and the original retracted position without affecting the subsequent conveyance article after the extrusion process is finished. Thus, the return process can be performed in a short time, the time required for one cycle of the discharge operation can be shortened, and the ability per unit time for discharging the conveyed article can be improved.
[0037]
7th invention is the said 6th invention, The said conveyance article extrusion mechanism is comprised by the rocking | fluctuation lever and rotation lever which make a part of the said drive mechanism connected with the said extrusion member at two places of the length direction. And a driving means for rotating the rotary lever, which is composed of the other part of the driving mechanism, and the tip of the pushing member is substantially D-shaped while the rotary lever is rotated once by the driving means. It is characterized by moving along the trajectory.
[0038]
According to the seventh aspect, by using the link mechanism, it is possible to obtain a simple configuration that can repeat the same operation continuously and reliably at a low cost.
[0039]
The eighth invention is the above-mentioned seventh invention, wherein the drive means connects the rotating lever to a rotating member that rotates constantly via a clutch device that can engage and disengage the clutch in one rotation, and issues a discharge command. Based on this, the one-rotation clutch device is operated, and the rotation lever is rotated once.
[0040]
According to the eighth invention, one cycle of the discharging operation by the pushing member can be realized with a simple configuration.
[0041]
A ninth invention is the seventh or eighth invention, wherein the transported article extruding mechanism is arranged such that, in the retracted position, the direction substantially perpendicular to the transport direction of the conveyor is long and the transport direction is short. Features.
[0042]
According to the ninth aspect, since the length in the transport direction can be shortened, even if a plurality of transport article pushing mechanisms are arranged in parallel in the discharge section, the space of the discharge section is small, for example, the transport article to be discharged. However, there is no limitation to constructing a pool conveyor from which a plurality of pool conveyors are dispensed.
[0043]
A tenth aspect of the present invention is the above-described eighth or ninth aspect, wherein a plurality of the transported article pushing mechanisms are provided, and a driving force from one driving source is transmitted to each of the rotating members.
[0044]
According to the tenth aspect of the invention, the cost can be reduced because only one drive source is required.
[0045]
According to an eleventh aspect of the present invention, in any one of the first to sixth aspects of the present invention, the conveying article push-out mechanism includes a push-out actuator that linearly reciprocates the push-out member, and the push-out actuator along an arcuate locus. And the swinging actuator that is reciprocally moved, and the push-out actuator positioned at the retracted position by the swinging actuator pushes out the push-out member.
[0046]
According to the eleventh aspect, since the pushing operation and the swinging operation are performed by the individual actuators, the pushing stroke and the swinging range can be set freely, and the pushing process is performed even if the transporting speed of the transported article is changed. The time required for the return process can be easily adjusted.
[0047]
A twelfth invention is characterized in that, in any one of the first to eleventh inventions, an impact absorbing member is provided on a front end surface where the push-out member comes into contact with the conveyed article.
[0048]
According to the twelfth aspect of the present invention, even if the position of the transported article is shifted from the normal position and away from the front end of the extrusion member, the transported article can be abutted and extruded without giving an impact in the extrusion process.
[0049]
A thirteenth aspect of the invention is any one of the first to twelfth aspects of the invention described above, wherein the transported article is a tray for sorting agricultural products.
[0050]
According to the thirteenth invention, in the agricultural product sorting apparatus, agricultural products such as melons and rice cakes are placed on the tray and transported, and the tray on which the agricultural product whose sorting classification is determined is pushed and discharged to a pool conveyor or the like. It can also be applied to systems that do.
[0051]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.
(First embodiment)
1 to 6 show a first embodiment of the present invention, which is an application of the present invention to a discharge device of an agricultural product sorting apparatus.
[0052]
FIG. 1 is a plan view of a discharge device of an agricultural product sorting device, FIG. 2 is a cross-sectional view taken along the line II of FIG. 1, and FIGS. 3 to 6 are diagrams for explaining the operation of the discharge device.
[0053]
In FIG. 1 and FIG. 2, the agricultural product sorting device has a melon, a rice bran, a pear, a peach, Agricultural products A such as tomatoes are transported to a measuring device (not shown), and based on the measurement results of this measuring device, the ranks such as LL, L, M, and S and the grades such as excellent, excellent, and good The classification is determined by the above.
[0054]
As shown in FIG. 2, the conveyer 21 has a frame 21a extending in the conveying direction and an endless chain 21b wound around, and small slats 21c are attached to the chain 21b at regular intervals. Are provided with guides 21d for the tray P to be conveyed, and guides 21e for the slats 21c are provided on the upper and lower surfaces of the frame 21a.
[0055]
A plurality of discharge units 22 are provided on the downstream side of the transfer conveyor 21 with respect to the measurement direction, and these discharge units 22 are prepared for each of the above-described grades, for example. And in these several discharge parts 22, based on the measurement result by an above-described measuring device, the discharge device 24 for discharging the saucer in which the agricultural product conveyed on the conveyance conveyor 21 was mounted to the pool conveyor 23 is provided. It is provided on the opposite side of the pool conveyor 23 with the transport conveyor 21 in between.
[0056]
For example, a barcode is provided on the side surface of the tray as identification information unique to the tray, and a measurement result by the measuring device is stored in a memory of a control device that controls the entire agricultural product sorting device in correspondence with the barcode. Then, the control device drives the discharge device so as to discharge the tray on which the corresponding agricultural product among the agricultural products being conveyed is discharged to the pool conveyor 23.
[0057]
In the present embodiment, the pool conveyor 23 of the agricultural product sorting apparatus has a two-story configuration including a first pool conveyor portion 23A and a second pool conveyor portion 23B, and the discharge device 24 is also the first one. In accordance with the pool conveyor section 23A and the second pool conveyor section 23B, there are provided two transported article pushing mechanisms 25 and 26 that operate independently of each other.
[0058]
The discharge device 24 in the present embodiment is configured such that two transporting article extruding mechanisms 25 and 26 having the same configuration can be independently driven by using a single motor 27, and the rotation of the motor 27 is performed via a drive chain 28. Transmitted to the drive sprockets 29 and 30 of the respective transported article pushing mechanisms 25 and 26, and the driving force transmitted to the respective sprockets 29 and 30 is provided with a clutch device 31 which will be described later provided in each of the transported article pushing mechanisms 25 and 26, respectively. Accordingly, the rotation shafts 32 and 33 of the transported article extruding mechanisms 25 and 26 can be rotated. Reference numeral 34 denotes a tension idler for adjusting the tension of the chain 28.
[0059]
Since the above-described two transported article pushing mechanisms 25 and 26 have the same configuration including the clutch device 31, the first transported article pushing mechanism 25 will be described, and the description of the second transported article pushing mechanism 26 will be omitted. In addition, the same code | symbol is attached | subjected to the same component of the 1st conveyance article extrusion mechanism 25 and the 2nd conveyance article extrusion mechanism 26, and a, 2nd after the code | symbol to the component of a 1st conveyance article extrusion mechanism. The subscript “b” is appended to the constituent elements of the conveyed product pushing mechanism.
[0060]
In the clutch device 31 (product name: spring clutch brake manufactured by Asahi Seiko Co., Ltd.), an input hub 35a coupled to the sprocket 29, a hollow output hub (not shown), and a brake hub 36a are coaxial along the axial direction. The clutch collar 37a is disposed between the input hub 35a and the output hub, and the brake collar 38a is disposed between the output hub and the brake hub 36a. The brake hub 36a is fixed to the substrate 39a, and the substrate 39a is fixed to the base plate B of the transport device.
[0061]
A coil spring-shaped clutch spring (not shown) is disposed between the input hub 35a and the output hub, the other end of the clutch spring and the output hub are always coupled, and the clutch spring is disposed in one end of the clutch spring. When the rear end portion of the input hub is fitted and rotation in the driving direction is applied to one end portion of the clutch spring, one end portion of the clutch spring is wound around the shaft portion of the input hub 35a, and the input hub 35a and the output hub rotate together via the clutch spring.
[0062]
One end of the clutch spring is engaged with a clutch collar 37a, and an engagement protrusion (not shown) is formed on the outer periphery of the clutch collar 37a. The engagement projection of the clutch collar 37a can be engaged with the tip of an engagement lever 41a driven by the electromagnetic solenoid 40a, and the clutch lever 37a is engaged with the engagement projection at a position where the engagement projection is engaged. The inner diameter of one end of the spring is pushed back so as to be slightly larger than the outer diameter of the shaft of the input hub 35a. When the electromagnetic solenoid 40a is turned on, the engaging lever 41a is engaged with the engaging protrusion. When the clutch spring 37 is rotated in the direction to release the engagement, the clutch collar 37a is rotated in the driving direction by the spring force of the clutch spring itself, and one end portion of the clutch spring is wound around the shaft portion of the input hub 35a. .
[0063]
When the electromagnetic solenoid 40a is turned off before the clutch collar 37a makes one rotation, the engagement lever 41a is rotated in the reverse direction by the spring force of a biasing spring (not shown) and is engaged with the engagement protrusion of the clutch collar 37a. As a result, the inner diameter of one end of the clutch spring is widened to release the winding, and the integral connection between the input hub 35a and the output hub is broken. At the same time, the engagement lever 41a engages with an engagement protrusion (not shown) formed on the outer periphery of the brake collar 38a.
[0064]
A coil spring-shaped brake spring (not shown) is disposed between the output hub and the brake hub 36a, and the other end of the brake spring is always engaged with the output hub. The inner diameter of one end portion of the brake spring is formed to be slightly larger than the outer diameter of the shaft portion of the brake hub 36a, and the tip end of the one end portion of the brake spring is engaged with the brake collar 38a. Therefore, the brake collar 38a rotates integrally with the rotation of the output hub, but when the engagement protrusion of the brake collar 38a is engaged with the engagement lever 41a, one end of the brake spring is wound around the shaft portion of the brake hub 36a. The brake will be applied immediately. That is, the clutch device 31 can be rotated by one rotation by sending an on / off drive signal to the electromagnetic solenoid 40a during one rotation of the input hub 35a.
[0065]
In the present embodiment, since the output hub is hollow, the rotating shaft 32 is penetrated and fixed in the output hub, and the lower end portion of the rotating shaft 32 is provided on the base plate B as shown in FIG. It is rotatably supported on 42a. Further, the upper end portion of the rotating shaft 32 passes through a bearing portion 43a provided on the top plate C, and a rotating lever 44a is fixed to the upper end portion of the penetrating shaft. The rotating lever 44a and the rotating shaft 32 are rotated clockwise as indicated by an arrow in FIG. It is designed to rotate in the direction.
[0066]
As shown in FIG. 2, the top plate C of the discharge device 24 is positioned below the transport surface of the transport conveyor 21, and the top plate C has a swing arm 45 a that is substantially directly below one guide 21 d of the transport conveyor 21. A support shaft 46a that rotatably supports the shaft is fixed along the vertical direction.
[0067]
A first connecting shaft 47a is attached upward to the tip of the rotating lever 44a, and a second connecting shaft 48a is attached upward to the tip of the swing arm 45a. A long pushing member 49a is connected to the first connecting shaft 47a and the second connecting shaft 48a. The first connecting shaft 47a is connected to the rear end position of the pushing member 49a, and the second connecting shaft. 48a is connected to a position slightly forward from the middle in the longitudinal direction of the pushing member 49a.
[0068]
The pushing member 49a is positioned above the height of the guides 21d arranged on both sides of the carrying surface of the carrying conveyor 21 in a state where the pushing member 49a is connected to the first connecting shaft 47a and the second connecting shaft 48a. The tip can be brought into contact with the side surface of the tray P transported on the transport conveyor 21.
[0069]
In FIG. 1, the first transported article pushing mechanism 25 shows the state in which the pushing member 49 a is at the end position of pushing, and the second carrying article pushing mechanism 26 shows the state in which the pushing member 49 b is in the standby position. Both 49a and 49b are driven by drawing a predetermined locus, which will be described later, on the downstream side of the support shafts 46a and 46b in the transport direction.
[0070]
The front end portion 50a of the pushing member 49a is formed in a substantially triangular shape, and the pushing portion 51a that comes into contact with the receiving tray P that is a carrying article at the tip of the pushing member 49a is the second carrying article pushing piece in FIG. In the standby state indicated by the mechanism 26, it is formed substantially parallel to the transport direction, and is retracted to a position on one end side of the transport conveyor 21 that does not hinder the movement of the tray P to be transported. The pushing member 51d is preferably provided with an impact absorbing member such as rubber, a spring, or a sponge. The rotation lever 44a is formed shorter than the swing arm 45a.
[0071]
The rotary lever 44a, the swing arm 45a and the pushing member 49a constitute a four-bar linkage mechanism having the rotary shaft 32, the support shaft 46a, the first connecting shaft 47a and the second connecting shaft 48a as nodes, as shown in FIG. In the standby state indicated by the second transported article push-out mechanism 26, the rotation lever 44a is positioned on the side away from the transport conveyor 21 in a direction substantially orthogonal to the transport direction, and the swing arm 45a is slightly more clockwise than the rotation lever 44a. It is located at a position advanced in the direction of rotation.
[0072]
In the link mechanism configured as described above, the rotation lever 44a is stopped by one rotation by the operation of the clutch device 31, and the first connection shaft 47a, which is a node by this one rotation, draws a locus of a perfect circle around the rotation shaft 32. On the other hand, the second connecting shaft 48a which is a node draws an arc. As shown in FIG. 1, in this link mechanism, when the rotary lever 44a starts rotating from the above-described standby position, focusing on one point of the pushing portion 51a of the distal end portion 50a of the pushing member 49a, the reverse letter of the D letter is abbreviated. The trajectory D shown is drawn, and the straight trajectory portion (straight line portion) D1 is inclined along the transport direction at an angle of approximately 45 degrees.
[0073]
In the straight line portion D1 of the trajectory D, the rotation lever 44a starts rotating in the clockwise direction indicated by the arrow from the standby state of the second transported article pushing mechanism 26 shown in FIG. The rotation lever 44a of the mechanism 25 corresponds to the rotation angle at which the rotation lever 44a rotates to a position slightly in front of the pushing member 49a. When the rotation lever 44a further rotates in the direction of the arrow to the standby position, The one point of the pushing portion 51a moves along the arc D2 of the locus D along the direction indicated by the arrow, and returns to the original standby position.
[0074]
At this time, in the speed at which the pushing portion 51a of the pushing member 49a moves along the straight line portion D1 of the trajectory D, the speed along the carrying direction of the carrying conveyor 21 is adjusted to be equal to or slightly faster than the carrying speed of the carrying conveyor 21. Therefore, when the tray P on which the agricultural products to be paid out to the pool conveyor 21 are placed reaches a predetermined position, the clutch device 31 transmits the rotational force to the rotary shaft 32, and the push-out portion 51a of the push-out member 49a It will contact the side of P without impact. And the extrusion part 51a of the extrusion member 49a moves diagonally toward the pool conveyor 23 side, contacting the tray P.
[0075]
At that time, the position at which the pushing portion 51a reaches the end point of the straight line portion D1 of the locus D is a position facing the first pool conveyor portion 23A. Therefore, the pushing portion 51a pushes by the pushing portion 51a by the movement of the pushing member 49a in the oblique direction. The received tray P is paid out to the first pool conveyor unit 23A as it is.
[0076]
In the present embodiment, the pushing member 49a of the first carrying article pushing mechanism 25 moves toward the pool conveyor 23 while moving to the downstream side in the carrying direction while maintaining an oblique angle of approximately 45 degrees above the carrying surface of the carrying conveyor 21. However, since the pushing member 49a starts to rotate counterclockwise around the second connecting shaft 48a, the pushing portion 51a of the tip 50a of the pushing member 49a gradually moves from the state parallel to the carrying direction to the carrying direction. It turns toward the downstream side. For this reason, in addition to the pushing force by the movement of the pushing member 49a in the oblique direction, the receiving tray P that has been in contact with the pushing portion 51a is also added with the turning force accompanying the turning of the pushing portion 51a, so that the receiving tray P can be quickly moved to the first pool conveyor. The portion 23A can be extruded.
[0077]
As described above, in the present embodiment, the tray P on which the produce A is placed is not suddenly projected toward the pool conveyor, but the first portion 51a, which is the distal end surface of the pushing member 49a, is attached to the tray P while being first. Since it extrudes toward the pool conveyor section 23A, no impact is applied to the receiving tray P at the time of dispensing, so that the produce A does not fall from the receiving tray P, and the quality is not deteriorated due to the impact.
[0078]
The extruding member 49a performs an extruding process of moving the linear portion D1 of the locus D in a state where the rotating lever 44a does not reach half rotation, and then the remaining rotation reaching one rotation is far away from the linear portion D1. The push-out part 51a of the push-out member 49a moves along the long curved part D2, and a return process is performed to return to the original standby position. Therefore, the return speed for moving the curved portion D2 for the return step is faster than the extrusion speed for the extrusion portion 51a to move the straight portion D1 of the locus D for the extrusion step.
[0079]
1 shows the end state of the pushing process in which the pushing portion 51a of the pushing member 49a has reached the end of the straight portion D1 of the locus D, and from this state, the rotation lever 44a is moved to an arrow. When further rotated in the direction, the pushing member 49a rotates counterclockwise around the second connecting shaft 48a connected to the swing arm 45a. For this reason, the extruding part 51a of the extruding member 49a is substantially perpendicular to the conveying direction of the conveying conveyor 21, and moves rapidly in the direction of retreating outward from the conveying surface. When the rotation lever 44a continues to rotate, the swing arm 45a rotates counterclockwise, and the pushing member 49a moves in a direction away from the transfer surface of the transfer conveyor 21 as a whole. Then, the pushing portion 51a of the pushing member 49a stops in a posture along the carrying direction on the guide 21d of the carrying conveyor 21, and waits for the next pushing.
[0080]
In addition, if the placing position of the tray P on the transport conveyor 21 is too far from the pushing portion 51a of the pushing member 49a at the standby position, there is a possibility that an impact will be applied to the catching plate P in the pushing process. It is desirable to provide a buffer means comprising a spring or the like.
[0081]
In addition, the discharge device 24 of the present embodiment is provided with two transported article extruding mechanisms 25 and 26, and these two transported article extruding mechanisms can be driven independently by one motor 27. Depending on the situation, one or three or more conveyance article extruding mechanisms may be provided.
[0082]
Further, in the present embodiment, the extrusion member 49a moves the straight line portion D1 of the locus D straightly at an angle of approximately 45 degrees downstream of the conveyance direction with respect to the conveyance direction of the conveyance conveyor 21 in the extrusion process. Is to shorten the length in the longitudinal and lateral directions in the conveying article extrusion mechanism so that the stroke in the extrusion process of the extrusion member 49a can be maximized, and the present invention is particularly limited to this inclination angle. is not.
[0083]
The above is the configuration of the discharge device 24 according to the present embodiment. Hereinafter, with reference to FIG. 3 to FIG. 5, the operation of paying out the tray P on which the agricultural products are placed by the discharge device 24 to the pool conveyor 23 will be described. .
[0084]
The conveyor 21 conveys the receiving tray P on which the agricultural product A is placed at a predetermined conveying speed toward the discharging device 24, and the control device that controls the entire agricultural product sorting device is the agricultural product sorted by the discharging unit 22. A sorting signal for discharging the receiving tray P on which is placed is output to the discharging device 24. It is optional whether the discharge device 24 uses the first transported article pushing mechanism 25 or the second transported article pushing mechanism 26, and the following explanation is an example in which the second transported article pushing mechanism 26 is selected. I will explain. Further, the motor 27 is always rotating, and the sprockets 29 and 30 provided in each clutch device 31 are rotating via the drive chain 28.
[0085]
As shown in FIG. 3, when the tray P to be discharged reaches the front position of the pushing portion 51 b in the second transported article pushing mechanism 26 in the standby state, the electromagnetic force of the clutch device 31 in the second transported article pushing mechanism 26. An ON signal is energized to the solenoid 40a, the engagement lever 41a rotates to disengage from the clutch collar 37a, the clutch is connected, and the rotation of the sprocket 30 is transmitted to the rotation shaft 33, whereby the rotation lever 44b is moved. The extrusion process of starting clockwise rotation and pushing the tray P to the second sorting conveyor unit 23B by the pushing member 49b is started.
[0086]
The tray P is pushed out in the standby state by pushing the pushing portion 51b from the end in the width direction of the second pool conveyor portion 23B (upstream in the transport direction of the transport conveyor 21) toward the center in the width direction toward the downstream in the transport direction. This is done by moving the straight line portion D1 of the locus D at an angle of approximately 45 degrees while moving.
[0087]
In the pushing step of the receiving tray P, the pushing portion 51b starts abutting substantially parallel to the conveying direction while moving in parallel with the receiving tray P. Therefore, there is almost no impact when the pushing portion 51b comes into contact with the receiving tray P. . Moreover, since the pushing part 51b which is the front-end | tip of the pushing member 49b contact | abuts the side surface of the saucer P, since a diverter does not block the hand of a conveyance article like the prior art example, a sudden impact is received on the saucer P. I don't give it. And since the extrusion part 51b contact | abutted with the saucer P has a substantially constant speed component along the conveyance direction of the conveyance conveyor 21, the speed of an extrusion direction will be given to the saucer P, and a saucer P can be smoothly extruded toward the second pool conveyor section 23B.
[0088]
Here, if the pushing part 51b is simply moved toward the second pool conveyor part 23B without moving the pushing part 51b in the same direction as the saucer P at substantially the same speed, the saucer P suddenly moves. It will protrude toward the 2nd pool conveyor 23B, and a big impact will be added.
[0089]
However, in this embodiment, the impact at the time of contact is eliminated by moving at a substantially constant speed in the same direction as the receiving tray P, and the pushing portion 51b is directed to the straight portion D1 of the trajectory D as it is toward the second pool conveyor 23B. Since it moves along, the receiving tray P becomes the extruded appearance, and it becomes possible to pay out the receiving tray P smoothly toward the 2nd pool conveyor 23B.
[0090]
FIG. 4 shows an end state in the pushing process of the tray P, and the pushing portion 51b moves to the approximate center in the width direction of the conveyor 21. At this time, the extrusion surface of the extruding portion 51b is not parallel to the conveying direction, and is slightly rotated by the counterclockwise rotation of the extruding member 49b. Can be done.
[0091]
When the extrusion process of the tray P shown in FIG. 4 is completed, as shown in FIG. 5, the process moves to the return process, and the extrusion member 49b that has extruded the tray P to the second pool conveyor section 23B has the extrusion section 51b trajectory D. Retracts from the conveying surface of the conveyor 21 along the curved portion D2. In the state shown in FIG. 5, the extruding part 51 b is at the position farthest from the conveyor 21, and the extruding part 51 b has not yet reached the standby position. This return step is retracted while moving in the transport direction of the transport conveyor 21 until the extruding portion 51b is retracted from the transport surface of the transport conveyor 21, so that it is compared to moving in the transport direction as in the conventional example. Therefore, there is almost no need to consider interference with the next transported article.
[0092]
When the rotation lever 47b further rotates in the clockwise direction from the state shown in FIG. 5, the pushing member 47b returns to the standby state shown in FIG. 3, but immediately before that, the electromagnetic force in the clutch mechanism 31 of the second conveyed product pushing mechanism 26 is restored. An off signal is output to the solenoid 40a, the engaging lever 41a engages with the clutch collar 37a and the brake collar 38a, cuts off the rotation transmission to the rotating shaft 33, and stops the rotating lever 44b at one rotation position.
[0093]
As shown in FIGS. 1 to 5, the transport pitch of the tray P that transports the transport conveyor 21 is an example in which there is a certain gap. This assumes, for example, the case where the outer diameter of the agricultural product to be placed is larger than the outer diameter of the saucer P, and when the agricultural product to be placed in the same saucer has a small diameter, as shown in FIG. Even if the tray P is conveyed in a close contact state, it can be paid out sufficiently.
[0094]
In the present embodiment, the conveying speed of the conveyor 21 is, for example, high-speed conveyance that conveys six trays P per second, and the discharge device 24 can rotate the rotation lever 44a, for example, 6.5 times per second. Therefore, even if there is a variation in the conveyance speed or the like, it is possible to perform the continuous discharge of the tray P in the tray P conveyance mode shown in FIG. As in the present embodiment, when two conveyance article pushing mechanisms are provided, the first pool conveyor 23A and the first pool conveyor 23A can be used alternately by using one constantly and using the other as a spare. The number of receiving trays P containing agricultural products stored in the two pool conveyors 23B can be made substantially the same. In this case, the first and second transported article extruding mechanisms 25 and 26 are operated in half. Can do.
[0095]
Moreover, since the drive source of the 1st conveyance article extrusion mechanism 25 and the 2nd conveyance article extrusion mechanism 26 is set as the structure which can be shared by the one motor 27, it can aim at cost reduction. It goes without saying that a motor may be prepared for each conveyance article pushing mechanism.
[0096]
Furthermore, in the conventional diverter system, as shown in FIG. 8, the length of the diverter is increased, and since it is disposed along the transport direction of the transport conveyor at the standby position, the installation space for the discharge device in the transport direction is long. However, in this embodiment, as shown in FIG. 4 and FIG. 5, one cycle from the pushing process of the pushing member 49b to the returning process can be realized by the width of the second pool conveyor section 23B. Since the pushing member 49b can be arranged in a direction substantially orthogonal to the conveying direction of the conveying conveyor 21 at the position, the space in the conveying direction can be shortened.
[0097]
As mentioned above, in this Embodiment, when paying out the receiving tray P on which the agricultural product conveyed on the conveyance conveyor 21 is discharged to the side of the conveyance conveyor 21, it is to the pool conveyor 23 substantially orthogonal to the conveyance conveyor 21. The operation of pushing out the receiving tray P while moving in the transport direction and pushing it out to the pool conveyor 23 is realized with a four-bar link configuration, but the present invention is a transport article with such a four-bar link configuration. The extrusion mechanism is not limited to the extrusion mechanism, and the extrusion unit performs an operation of pushing toward the pool conveyor while moving while abutting the tray P at a substantially constant speed on the side surface parallel to the conveyance direction of the tray P as a transported article. In other words, after the tray P is pushed out, it is only necessary that the pushing portion does not move in the carrying direction until at least the pushing-out portion is retracted from the carrying surface of the carrying conveyor.
(Second Embodiment)
FIG. 7 is a plan view showing a second embodiment of the present invention.
[0098]
The discharge device 24 according to the present embodiment includes a push air cylinder 53 having a push member 52a attached to the tip of a piston rod 53a, and a swing air cylinder 54 that swings the push air cylinder 53 in a horizontal plane. The structure is provided with one article extrusion mechanism, and the extrusion air cylinder 53 and the swinging air cylinder 54 are swingably mounted on a mounting base 55 in the horizontal plane via support shafts 56 and 57, respectively. Yes.
[0099]
The extrusion air cylinder 53 is height-adjusted so that the extrusion member 52 is positioned above the guides 21d provided on both sides of the conveyance surface of the conveyance conveyor 21, and is attached to the mounting base 54. It can be swung above the conveyor 21. The extrusion air cylinder 53 is connected to the tip of the piston rod 54 a of the swinging air cylinder 54 via a connecting shaft 58.
[0100]
In the extrusion air cylinder 53 and the swinging air cylinder 54, the expansion and contraction of the piston rods 53a and 54a is controlled by controlling the air valves (not shown) by signals from the above-described control device that controls the entire agricultural product sorting device. The
[0101]
In the present embodiment, the extrusion air cylinder 53 indicated by the solid line in FIG. 7 is in the standby position as in the first embodiment, and the extrusion portion 52a is in a plane substantially parallel to the transport direction in the standby state. Is formed. And the extrusion part 52a is retracted | saved to the substantially upper position of the guide 21d provided in the one side of the conveyance surface of the conveyance conveyor 21. FIG.
[0102]
In the standby position, the pushing air cylinder 53 is in a position where the piston rod 53a is contracted, and the swinging air cylinder 54 is in a position where the piston rod 54a is extended.
[0103]
When the tray P on which the agricultural products to be sorted are placed reaches the front surface of the pushing portion 52a in the standby state, the air valve is switched so that the piston rod 53a extends with respect to the pushing air cylinder 53. Then, since the piston rod 53a extends, the pushing portion 52a moves in the same direction while abutting the receiving tray P at a substantially constant speed on the side surface parallel to the conveying direction of the receiving tray P, as in the first embodiment. The tray P is extruded toward the pool conveyor 23, and the extrusion process is completed in a state where the tray P is inclined at an angle of about 45 degrees with respect to the transport direction.
[0104]
Simultaneously with the end of the extrusion process, the air valve is switched in a direction in which the piston rod 54a contracts with respect to the swinging air cylinder 54. Then, the pushing air cylinder 53 starts swinging by the swinging air cylinder 54 in the counterclockwise direction, which is the transport direction of the transport conveyor 21, and a return process for retracting the pushing member 52 from the transport conveyor 21 is executed. At that time, since the pushing member 52 swings in the carrying direction of the carrying conveyor 21, it does not interfere with the subsequent tray P.
[0105]
When the return process is started, the control air valve of the extrusion air cylinder 53 is immediately switched to retract the piston rod 53a, or as shown by the broken line in FIG. The piston rod 53a may be contracted after moving to a greatly inclined position. When the piston rod 54a of the swinging air cylinder 54 is contracted to a predetermined position, the control air valve is switched in a direction to extend the piston rod 54a immediately. Return the extrusion air cylinder 53 to the standby position.
[0106]
As described above, in the present embodiment, the discharging operation similar to that in the first embodiment can be performed on the tray P transported on the transport conveyor 21, but the pushing member is pushed by the pushing air cylinder 53. The reciprocating motion 52 is reciprocated, and the pushing air cylinder 53 is reciprocated in a circular arc by the swinging air cylinder 54, whereby the pushing portion 52a of the pushing member 52 is moved along the straight portion D1 of the locus D as in the first embodiment. Compared with the first embodiment, it is possible to perform an extruding step that moves along the curved line D2 and a retreating step that eventually returns to the original standby position by performing a retreating operation along the curved portion D2. The configuration can be further simplified.
[0107]
Moreover, since the extrusion member 52 can shorten the length of a conveyance direction very much, the space in the conveyance direction of a discharge device can be made small.
[0108]
Instead of the swinging air cylinder, the pushing air cylinder 53 may be moved in an arc using a motor-driven cam.
[0109]
In this embodiment, an air cylinder is used as an actuator for reciprocating the pushing member linearly, and an air cylinder is used as an actuator for reciprocating the pushing air cylinder in a circular arc. However, the present invention is limited to this. However, as described above, one cycle consisting of the extrusion step and the return step corresponds to the conveyance speed for conveying six trays P per second, as described above. What is necessary is just to be able to pay out the receiving tray P continuously.
[0110]
Of course, as in the first embodiment, it is needless to say that a plurality of transported article pushing mechanisms may be configured according to the number of strip conveyors.
[0111]
In both the first embodiment and the second embodiment described above, in the agricultural product sorting and sorting apparatus, the tray on which the agricultural product whose sorting classification (grade, class) is determined is discharged from the conveyor to the outside of the conveyor. However, the present invention is not limited to this, and the present invention is not limited to this, and can be applied to an apparatus that discharges conveyed articles moving on a conveyor to the outside of the conveyor at a predetermined sorting discharge position. .
[0112]
Moreover, it is not limited to the conveyance form which mounted the conveyance article on the saucer like the 1st, 2nd embodiment, It can apply also to the form which moves a conveyance article directly on a conveyor.
[0113]
Further, the transported articles are not limited to agricultural products, and are not limited as long as they can be handled by a physical distribution system such as cardboard boxes, containers, bottles, cans and the like.
[0114]
【The invention's effect】
According to the invention of claim 1, the extruding member does not suddenly extrude the conveyed article, but abuts the conveyed article at the tip of the conveying member, and pushes while moving in the conveying direction according to the conveyed article. It is possible to smoothly extrude and discharge without impacting the conveyed article.
[0115]
In addition, if one cycle consisting of the extrusion process and the return process is speeded up, it is possible to realize a high-speed discharge process coupled with a smooth discharge operation of the transported articles, and also supports high-speed transport in which transported articles are transported almost without gaps. Thus, the conveyed article can be discharged continuously.
[0116]
According to the second aspect of the present invention, since the extruding member does not collide with the transported article at the initial stage of the extrusion process, the transported article can be smoothly brought into contact with the transported article and can be extruded as it is. .
[0117]
According to the third aspect of the invention, the transported article is pushed out in such a form that the extruded member is addressed to the transported article in accordance with the flow of the transported article transported on the conveyor. Therefore, it is possible to smoothly discharge the conveyed product.
[0118]
According to the invention which concerns on Claim 4, an extrusion member can be operated efficiently and the compactization of an apparatus can also be achieved.
[0119]
According to the invention of claim 5, even if the speed of the extrusion process is adjusted in accordance with the speed of the conveyed article, the speed of the return process can be increased, and the time required for one cycle can be shortened. Discharge processing becomes possible. Moreover, it can avoid that an extrusion member interferes with the conveyance article conveyed next, the conveyance speed of the conveyance article by a conveyor can be raised, and the improvement of discharge processing can be aimed at as a result.
[0120]
According to the invention which concerns on Claim 6, the drive in the extrusion process of the extrusion member match | combined with the conveyance speed of a conveyance article, and the extrusion member after finishing an extrusion process, without affecting the subsequent conveyance article, are original. The return process to return to the retracted position can be performed in a short time, the time required for one cycle of the discharging operation can be shortened, and the ability per unit time for discharging the conveyed article can be improved.
[0121]
According to the seventh aspect of the invention, by using the link mechanism, it is possible to obtain a simple configuration that can repeat the same operation continuously and reliably at a low cost.
[0122]
According to the invention which concerns on Claim 8, 1 cycle of discharge operation | movement by an extrusion member is realizable with a simple structure.
[0123]
According to the ninth aspect of the invention, since the length in the transport direction can be shortened, even if a plurality of transported article pushing mechanisms are arranged in parallel in the discharge section, the space of the discharge section can be reduced, for example, discharged. There is no limit to configuring a pool conveyor from which a transported article is dispensed from a plurality of pool conveyor sections.
[0124]
According to the invention of claim 10, since only one drive source is required, the cost can be reduced.
[0125]
According to the eleventh aspect of the present invention, since the extrusion operation and the swinging operation are performed by the individual actuators, the extrusion stroke and the swinging range can be freely set, and the transport speed of the transported article is changed. The time required for the extrusion process and the return process can be easily matched.
[0126]
According to the invention which concerns on Claim 12, even if the position of a conveyance article shifts | deviates from the normal position and leaves | separates from the front-end | tip of an extrusion member by an extrusion process, it can contact and extrude without giving an impact to a conveyance article. .
[0127]
According to the invention according to claim 13, in the agricultural product sorting apparatus, agricultural products such as melons and potatoes are placed and conveyed on a receiving tray, and the receiving tray on which the agricultural products whose sorting classification has been determined is pushed to a pool conveyor, etc. It can also be applied to a system that discharges water.
[Brief description of the drawings]
FIG. 1 is a plan view showing a first embodiment of the present invention.
2 is a cross-sectional view taken along the line II of FIG.
FIG. 3 is an operation explanatory diagram of the first embodiment and shows a standby state of an extruded member.
FIG. 4 is an operation explanatory view of the first embodiment and shows a state in which an extruded member has finished an extrusion process.
FIG. 5 is an operation explanatory view of the first embodiment and shows a state in the middle of a return process of the extruded member.
FIG. 6 shows a state in which the tray is continuously conveyed in a close contact state in the first embodiment.
FIG. 7 is a plan view showing a second embodiment of the present invention.
FIG. 8 is a plan view showing a conventional discharging device.
[Explanation of symbols]
A farm products
B base plate
C Top plate
P saucer
21 Conveyor
21a frame
21b Endless chain
21c slats
21d, 21e guide
22 Discharge section
23 Pool conveyor
24 Discharge device
23A First pool conveyor section
23B Second pool conveyor section
25, 26 Conveying article extrusion mechanism
27 Motor
28 Drive chain
29, 30 Drive sprocket
31 Clutch device
32, 33 Rotating shaft
34 Tension idler
35a Input hub
36a Brake hub
37a Clutch collar
38a Brake color
39a substrate
40a Electromagnetic solenoid
41a Engagement lever
42a, 43a Bearing part
44a Rotating lever
45a Swing arm
46a, 46b
47a First connecting shaft
48a Second connecting shaft
49a Extruded member
49b Extruded member
50a Tip
51a Extruding part
D Trajectory showing the reverse of D
D1 Straight line locus
D2 arc part
52 Extruded member
52a Extrusion part
53a, 54a Piston rod
53 Air cylinder for extrusion
54 Air cylinder for rocking
55 Mounting base
56, 57 Spindle

Claims (13)

In a discharge device for a transported article that discharges a transported article transported on a conveyor from the conveyor to the outside of the conveyor at a predetermined sorting discharge position,
An extruding member that abuts the conveying article that moves on the conveyor and pushes the conveying article in the discharging direction, and the extruding member that is in contact with the conveying article substantially in synchronization with the movement of the conveying article in the conveying direction. A drive mechanism that performs a return process of returning the extruded member to the retracted position as one cycle after the extruding process of moving the ejecting position on the conveyor from the retracted position, and a conveying article pushing mechanism comprising: The transporting article discharging apparatus, wherein the driving mechanism is operable for each transporting article transported on the conveyor for the one cycle. 2. The discharge of the transported article according to claim 1, wherein the pushing member is formed such that a contact surface of the pushing member with the transported article is substantially parallel to a transporting direction of the conveyor at the retracted position. apparatus. The transporting article extruding mechanism is characterized in that, in the extruding step, a movement locus for moving in a pushing direction while moving a tip portion of the pushing member in a carrying direction is a straight line inclined with respect to the carrying direction. Item 3. The delivery device discharging apparatus according to Item 1 or 2. The apparatus for discharging a transported article according to claim 3, wherein the inclination angle is approximately 45 degrees. In the return step, the transporting article extruding mechanism is moved along a curvilinear movement trajectory that rapidly moves toward the outside of the conveyor while moving the tip of the extruding member in the transporting direction. The apparatus for discharging a transported article according to any one of claims 1 to 4. 6. The transported article discharging apparatus according to claim 1, wherein the transported article extruding mechanism moves a tip end portion of the pushing member along a substantially D-shaped trajectory in the one cycle. . The conveying article pushing mechanism includes a link mechanism constituted by a swing lever and a rotating lever, which are part of the driving mechanism connected to the pushing member at two locations in the length direction, and another part of the driving mechanism. And a driving means for rotating the rotary lever, and the tip of the pushing member is moved along a substantially D-shaped trajectory while the rotary lever is rotated once by the driving means. Item 7. A delivery device discharging apparatus according to Item 6. The driving means connects the rotating lever to a rotating member that rotates constantly via a clutch device capable of engaging and disengaging the clutch by one rotation, and operates the one-rotation clutch device based on a discharge command. The conveying article discharging apparatus according to claim 7, wherein the conveying article is rotated once. 9. The apparatus for discharging a transported article according to claim 7 or 8, wherein the transported article push-out mechanism is arranged in the retracted position so that the direction substantially perpendicular to the transport direction of the conveyor is long and the transport direction is short. . The apparatus for discharging a transported article according to claim 8 or 9, wherein a plurality of transporting article pushing mechanisms are provided, and a driving force from one driving source is transmitted to each of the rotating members. The transport article pushing mechanism includes an extruding actuator for linearly reciprocating the extruding member, and a swinging actuator for reciprocating the pushing actuator along an arcuate trajectory. The apparatus for discharging a transported article according to any one of claims 1 to 6, wherein the positioned actuator for pushing out pushes out the pushing member. The apparatus for discharging a transported article according to any one of claims 1 to 11, wherein an impact absorbing member is provided on a front end surface where the pushing member abuts on the transported article. The apparatus for discharging a transported article according to any one of claims 1 to 12, wherein the transported article is a tray for sorting agricultural products.

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