JPH058845A - Conveying device for selecting crop - Google Patents

Abstract

PURPOSE:To reliably deliver crops one by one to a selecting part and to improve conveyance efficiency. CONSTITUTION:A crop placing surface on the upper side having the same width as that of a crop to be conveyed is formed such that a plurality of conveying bodies 21 formed in inclination orientation wherein crops to be conveyed are positioned in a level lowered toward the downstream side in the direction of conveyance of the crop to be conveyed are arranged in parallel along a crop conveyance direction. A drive mechanism 22 to vertically move the conveying bodies 21 at given pitch is provided. A drive timing at which the adjoining conveying bodies 21 are vertically moved in a manner to rebel against each other is set to form an orderly feeding placing conveying device 3. Guide chutes 30 and 30 receiving dropping crops to be conveyed and located on the outer sides on both sides, in the direction of a conveyance width, of the orderly feeding conveying device 3 and guide the crops toward a conveying device 29 for reduction are provided. The conveying device 29 for reduction reduces guided crops toward a storage part 1.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention enables to pick up transported crops such as carrots, radishes and other long vegetables from a storage part and sequentially transport them to a measuring device in a subsequent process for automatic measurement and selection. In detail, the carrying-out device for sequentially placing and carrying out the crops from the storage part, and the sequential sending-out device for sending the crops sent out from the carrying-out device one by one in a predetermined posture to the weighing and sorting part in the next process. The present invention relates to a transportation device for sorting crops including a stationary transportation device.

[0002]

2. Description of the Related Art In the above-described crop sorting and conveying apparatus, conventionally, a crop is stored on one side of a storage hopper, and an endless rotating belt is provided with locking projections at a predetermined pitch on a peripheral surface of the conveyor belt. One by one is scooped up and placed on the locking protrusions and is carried out diagonally upward. During the transportation on the lower side of the transportation, the crops are placed one by one and moved up and down, A structure having a discharging tool to be sent to the process has been considered.

[0003]

However, in the above-mentioned conventional structure, the discharging tool is vertically moved to discharge the crops one by one while the crops are continuously conveyed from the conveyor to convey the crops. Since it is a configuration, in order to increase the transport efficiency, it is necessary to increase the drive speed of the discharging tool, but if this is done, the crop may be damaged, and there is the disadvantage that the drive speed cannot be increased indiscriminately. Further, there is a possibility that two crops will be erroneously placed on the discharging tool, and one crop will not be surely placed one by one, and there is room for improvement in this respect as well. The present invention aims to eliminate the above-mentioned problems.

[0004]

According to the characteristic constitution of the present invention, in the transportation device for sorting crops described at the beginning, an upper crop mounting surface having substantially the same width as that of the transported crop is provided. A plurality of conveyors configured in an inclined position positioned downward as the lower side of the conveyance of the above is arranged in parallel along the crop conveyance direction,
Further, a drive mechanism is provided for vertically moving each carrier at a predetermined pitch, and the drive timing is set so that adjacent carriers vertically move upside down contradictoryly, thereby forming the progressive-loading and carrying device. A guide chute is provided for receiving the conveyed crops that have fallen to the left and right outside in the conveying width direction of the conveying device and guiding them toward the returning conveying device, and the returning conveying device directs the guided crop toward the storage section. The point is that it is configured to give back.

[0005]

With respect to the crops conveyed by the carry-out device, the placed crops are sequentially transferred to the conveyance side on the lower side of conveyance by the vertical movement of the conveyance body along the inclination thereof. At this time, since the adjacent carriers move up and down in a contradictory manner, only the crops placed on one carrier move to the carrier on the lower side. The width along the transport direction is almost the same as the crop width, and the transport width is configured to become narrower in sequence, so by repeating the transfer operation as described above multiple times, near the transport end part. In, only one crop will be placed on the carrier. In addition, as a result of adopting a structure in which the conveyed crops are transferred while being moved by the vertical movement of the conveyor body in this way, the conveyed crops in an unstable posture move outwards on both sides in the conveying width direction due to the vertical movement. Even if it falls, the conveyed crops that have fallen outside on both sides are received by the guide chute and returned to the reservoir through the reduction belt.

[0006]

[Effects of the Invention] Therefore, even when a plurality of overlapping crops are carried out from the storage section, the crops can be surely sent to the weighing and sorting section in the subsequent step one by one and placed by the transfer conveyor. Compared with the case where the crops are released one by one while being transported, even if the vertical movement speed of the carrier is set to a relatively high speed, the sorting and placing operation for each one can be performed stably, and While avoiding damage, even if there is a transported crop with an unstable posture and it falls outside, it is possible to effectively reduce the waste of sorting and transport and improve the transport efficiency. became.

[0007]

Embodiments will be described below with reference to the drawings. Figure 1
1 shows an automatic sorting device for crops in which carrots, radishes and other crops are sequentially carried out one by one from the storage section, weighed and sorted, sorted and collected according to each weight rank. This sorting device includes a storage hopper 1 (one example of a storage unit) that stores a large number of crops, a carry-out conveyor 2 (one example of a carry-out device) that sequentially carries out and carries out the crops from the storage hopper 1, and a carried-out transported object. Sequential feed placement / transportation device 3 that sends out the crops C one by one to the subsequent process, and the transported crops C sent out from this sequential feed placement / transport device 3 are weighed while being placed and transported, and a plurality of recovery tools 4 are provided for each weight rank. It comprises a weighing and sorting device 5 for selectively sorting and collecting.

As shown in FIGS. 3 and 4, the carry-out conveyor 2 winds an endless rotating belt 7 around a pair of upper and lower pulleys 6, 6 and a predetermined outer peripheral surface of the endless rotating belt 7. The locking projections 8 are formed at a pitch, and the transportation start end portion is arranged in the storage hopper 1 so as to face the bottom through a notch formed on one side of the storage hopper 1, and the transportation projection on each locking projection 8 is carried out. The crops C are placed side by side one by one and conveyed obliquely upward. Also, this carry-out conveyor 2
Vertical walls 9, 9 for preventing the transported crop C from falling laterally outward are formed on both left and right sides of each vertical wall 9,
In order to prevent the placed crops from falling from the upper side of the transport path toward the storage hopper 1 over the upper part of 9, a protective sheet 10 made of transparent synthetic resin covering the upper part of the transport path of the carry-out conveyor 2 is installed. I am doing it. The conveyance start end side of the protective sheet 10 is bent in an arc shape and fixed with a screw via the contact plate 11, and for example, the crop is erroneously attempted to be conveyed while being placed on the locking projection 8 in the upright posture. At this time, the posture is changed by abutting on the arcuate bent portion 10a.

The weighing / sorting device 5 is rotatable around a horizontal axis centered at a position deviated to one side in the conveying direction, at a predetermined pitch over a pair of left and right endless rotating chains 12, 12. The mounting engaging portion 14 formed on the opposite side of the erected portion is mounted and locked on the guide rail 15 arranged along the endless rotating chain 12 to maintain a predetermined mounting posture. Configured. Then, as shown in FIG. 9, an appropriate portion in the middle of the guide rail 15 is configured as a movable rail 15a, the movable rail 15a is attached to one side of the balance arm 16, and the weight rank is provided on the other side of the balance arm 16. When the weight 17 of the transported crop C placed on the tray 13 is heavier than the weight 17, the movable rail 15a is lowered and the tray 13 is rotated downward. It is configured such that the placed crops are dropped and collected via the lower guide chute 18 to the collecting tool 4 of the corresponding rank among the collecting tools 4 arranged in parallel on the lateral side along the transport direction of the endless rotation chain 12. I am doing it. Further, the transported crop C that has not fallen to any of the collection tools 4 is configured to be guided from the end of the conveyance to the storage tools 20 arranged in parallel with each other through the guide chute 19 so as to be guided. is there.
The storage tool 20 is arranged in a state in which the endless rotation chain 12 is located on the side of the upper hand side of the conveyance than the conveyance end position.

As shown in FIGS. 2 and 5, the progressive feeding device 3 has an upper crop placing surface 21a having substantially the same width as that of the transported crop C, and a lower side of the transported crop of the transported crop C. A plurality of conveyors 21 arranged in an inclined posture located below are arranged in parallel along the crop conveying direction, and each conveyor 21
Is provided with a drive mechanism 22 that moves up and down at a predetermined pitch, and the drive timing is set so that adjacent conveyance bodies 21 move up and down in a contradictory manner. That is,
As shown in FIG. 8, the odd-numbered transport bodies 21 are integrally configured as a first group so as to reciprocate vertically at a constant pitch, and the even-numbered transport bodies 21 are integrally configured as a second group at a constant pitch. It is configured to reciprocate up and down,
A pair of T-shaped rocking members 24, 24 reciprocatingly rocked by an eccentric crank mechanism 23 are provided below each carrier 21, and a connecting arm 24a connected to the carrier 21 of the first group is provided. Each of the swing members 24 is pivotally supported on one side of the balance swing end, and the connecting arm 24a connected to the second group of transport bodies 21 is connected to the other side so that the first group and the second group are contradictory. The drive mechanism 22 is configured by setting the drive timing so as to move up and down. In addition, the conveyance width of each conveyance body 21 is formed to be wide at the conveyance start end portion, and is formed so as to become gradually narrower toward the end portion side, and only one crop is formed on the conveyance body 21 at the end portion. Is configured to be placed, and each of the transport bodies 21 is slightly inclined along the transport width direction so that the transported crops C overlapping with the transport are laterally displaced and placed one by one. is there. Then, the transport width of the two transport bodies 21, that is, the width in the direction orthogonal to the transport direction, is set to be larger than the transport width of the transport body 21 on the side better than that at the transport end position.
Further, the transport body 21A at the end is formed in a thin plate shape.

[0011] The conveyed product C dropped from the end of the carry-out conveyor 2 is guided through a guide chute 25 for guiding the conveyed product C in a posture along which the conveyed product C is placed and conveyed. It is configured so as to be sent out to a position on the upper side of the slope 21 and the overlapped conveyed crops C are supplied in a state where the overlap is broken. A guide belt 27 that rotates around a vertical axis that moves the transport speed at substantially the same speed and abuts on the transported crop C is provided on the lateral side of the high level side in the transport width direction of each transport body 21. As shown in FIGS. 6 and 7, on the lower slope side of the exit of the guide chute 25, the lower side of the conveyor 21 is located on the lower side of the carrier 21. The posture of the transported crop C in which the longitudinal direction is in the vertical direction along the transport direction in a state in which the longitudinal direction is along the transport direction while the posture is inclined toward A synthetic resin guide plate 28 (an example of a guide member) to be changed is provided, and this guide plate 28 is attached so as to be vertically swingable about the horizontal axis on the hand side of conveyance and to be able to change and adjust the inclination angle. At the left and right sides of the transport body 21 where the transport end portion is located, the transported belt C that has fallen is transported to the reduction belt 29.
A guide chute 30 that guides the flow-down is provided in [an example of the transportation device for reduction], and the transported crop C guided by the reduction belt 29 is configured to be returned to the storage hopper 1.

The mounting surface 2 on the low level side of each carrier 21
1a, on the working surface of the guide belt 27, the transported crop C
Surface material 31 that gives resistance to sliding and guides it to roll
Is attached. The surface layer material 31 is configured by arranging a large number of elastic small projections on the seat surface like a so-called artificial grass.

In the progressive feeding device 3, the transported crop C is transferred to the transport body 21 on the lower side in the transport direction by the upward movement of the transport body 21 by the crop placing surface 21a in the inclined posture. The transferred crops C are carried by sequentially repeating such transfer movements. At this time, since the conveyed crop C before being transferred to the conveying body 21 moving downward is received and supported by the front surface of the next conveying body 21, the separation is reliably performed. In addition, since the width of the carrier 21 along the carrying direction is substantially equal to the width of the transported crop C, and the carrying width in the direction orthogonal to the carrying direction is gradually narrowed, such a transfer movement Is repeated a plurality of times, the transported crops C, which are overlapped by two or more, are leveled one by one, and are securely placed one by one near the end portion. Then, the transported crop C that has been introduced into the transport device 3 in a vertically long posture in which the longitudinal direction is along the transport direction.
Is guided to a predetermined lateral posture while gradually changing the posture of the guide plate 28 to perform the above-mentioned transfer operation, and a small transported crop is sandwiched between the guide plate 28 and the carrier 21. Also, since the guide plate 28 retracts upward,
Less likely to cause damage.

It should be noted that reference numerals are added to the claims for facilitating the comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

1] Overall side view of the sorting device

FIG. 2 is a plan view of a progressive feeding device.

[Fig. 3] Side view of the carry-out conveyor

FIG. 4 is a partial perspective view of the carry-out conveyor.

FIG. 5 is a perspective view of a progressive feeding device.

FIG. 6 is a side view of a guide plate arrangement portion.

FIG. 7 is a plan view of a guide plate arrangement portion.

FIG. 8 is a side view of a sequential feeding device.

FIG. 9 is a plan view of the weighing and sorting device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage part 2 Unloading device 3 Sequential feeding placement transfer device 5 Weighing and sorting part 21 Transport body 21a Crop placement surface 22 Drive mechanism 29 Returning transport device 30, 30 Guide chute

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B65G 47/52 E 8010-3F 47/68 Z 8010-3F // B65G 47/78 E 8010-3F

Claims (1)

Claims: 1. A carrying-out device (2) for sequentially placing and carrying out crops from a storage section (1), and one crop sent out from the carrying-out device (2) in a predetermined posture. A transport device for sorting crops, comprising a sequential feeding placement transport device (3) for sending to a weighing and sorting section (5) in the next step, wherein the upper crop loading surface (21a) has substantially the same width as the transported crop. A plurality of transport bodies (21) configured in an inclined posture, which is located downward toward the lower side of transport of the transported crop, are arranged in parallel along the crop transport direction, and each transport body (21) is predetermined. A drive mechanism (22) for moving up and down at a pitch is provided, and a drive timing is set so that adjacent transport bodies (21) move up and down in a contradictory manner, thereby configuring the progressive loading transport device (3). On the left and right outer sides in the width direction of the transport device (3) Guide chute guide that toward the reduction conveying device receiving the transported crop beat (29) (30), (3
0), and the return transportation device (29) is configured to return the guided crop toward the storage section (1).