JP2007300888A - Root-vegetable harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a root-vegetable harvester securing a large lifting and lowering range for turning the direction of a machine body, having improved lifting and lowering response when picking up crops during harvesting trip, and capable of solving other various problems. <P>SOLUTION: The root-vegetable harvester is constituted of a first conveyor device 1 for taking in the field crops from the front side and conveying the crops rearward, a second conveyor device 2 for supporting the first conveyor device 1 so as to be lifted and lowered, and delivering and conveying the crops to the machine body side, and the machine body receiving the crops while supporting the second conveyor device 2 so as to be lifted and lowered. Both the conveyor devices 1 and 2 are equipped with driving systems enabling the first conveyor device 1 and the second conveyor device 2 to be driven individually according to the operation mode of an operation member L for common lifting and lowering operation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a root crop harvester that digs up or picks up crops such as potatoes and onions from a farm.

  For harvesting crops such as potatoes and onions that grow in the soil, first, the crops are dug out of the soil, or after the dug up, the crops placed on the ground are picked up and harvested by a root vegetable harvester. As in the example of Patent Document 1, the root vegetable harvesting machine picks up a crop with a first conveyor having a digging tool or a pick-up tool at the tip, conveys it to the rear, and passes it to the second conveyor. Then, it is conveyed to a sorting and conveying device provided above the rear part of the chassis, and after being developed on this sorting and conveying device and sorted by an operator, it is packed in a container or the like and carried out of the machine.

The first conveyor is provided with a gauge ring that can be adjusted up and down at the position of the tip of the first conveyor, and can be adjusted to the ground or a ground crop. In addition, the rear part of the second conveyor is extended upward and high so that the digged onion can be inherited and transported, and these first and second conveyors are integrally supported by a conveyor frame. In this configuration, the cultivated onion and other crops are transported to a foliage processing roller group installed in the upper part of the vehicle body. The conveyor frame is connected to the main body frame (chassis) via the left and right connecting arms, and can move in the field and move to the harvesting work place by raising and lowering the large head with a simple structure. I was trying.
JP-A-1-37213

  However, the above-described integrated conveyor frame lacks the ability to move up and down quickly to cope with small unevenness in the field because the weight is concentrated on the pick-up part at the tip of the first conveyor, and the conveyor frame is not in the storage position. However, it still has the problem of occupying a large area by projecting greatly forward of the aircraft. In order to solve this problem, when the first and second conveyors are configured so as to be able to move up and down individually, there is a problem that the operator is required to perform cumbersome driving operations that properly use the corresponding operation systems. Become.

  In addition, problems such as troublesome handling of crop containers to prevent damage to crops when entering and storing harvested crops, and problems of quality degradation due to drop in delivery of crops to a rolling support sorting and conveying device are resolved. I was waiting.

  An object of the present invention is to solve a variety of other problems while ensuring a large lifting and lowering operation for changing the direction of the aircraft and moving, and improving the lifting response when picking up crops by harvesting and traveling. It is to provide a root crop harvesting machine that can.

  The invention according to claim 1 is a first transport device that takes in and forwards a field crop from the front, and a second transport device that supports the first transport device so that it can be raised and lowered and relays the crop to the machine body side. And a root vegetable harvesting machine comprising a machine body capable of receiving a crop while supporting the second conveying device so as to be movable up and down, the both conveying devices are configured according to the operation mode of the operation member for common lifting operation. One transport device and the second transport device each include a drive system that moves up and down individually.

  The root vegetable harvester performs harvesting while repeatedly changing the direction in the field, as well as moving traveling including loading and unloading, and operating each operation device according to the traveling mode. Is lifted up and down. That is, at the time of harvesting traveling, the first transport device is taken down by the second transport device while taking up the crops in the field with both transport devices lowered, and the first transport device is accommodated on the machine body side. By moving up and down, crops are taken in accordance with the unevenness of the field, and when changing direction or traveling, both transfer devices are raised, and at this time, the second transfer device is raised and lowered As a result, both conveying devices are moved up and down integrally.

  According to a second aspect of the present invention, in the configuration of the first aspect, the airframe is provided with a support base for supporting a crop storage container for storing the received crop at a predetermined position, and the support base is a crop storage container. And a tilting support mechanism that supports the container according to the crop capacity so as to maintain the input drop within a predetermined range.

  The crop received by the aircraft is stored in a crop container on the support table. At this time, the crop container is tilted according to the crop capacity so as to maintain the input drop within a certain range by the tilt support mechanism of the support table. It is supported and damage to contained crops is suppressed.

  According to a third aspect of the present invention, in the configuration of the first aspect, the machine body supports a sorting / conveying device that is capable of sorting and deploying received crops so that the received crop can be separated and unfolded. An intermediate transfer device that relays and conveys between the apparatus and the second transfer device is provided. The intermediate transfer device is configured such that a twisting operation can be performed between the start and end points with respect to the transfer axis, and the start end side is configured to be the second transfer. The terminal is fixedly connected to the terminal end of the apparatus, and the terminal side is fixedly connected to the starting end of the sorting and conveying apparatus.

  The intermediate conveyance device relays and conveys the crop received from the second conveyance device, and then the sorting and conveyance device sorts and develops the crop while sending the crop so that a predetermined posture can be maintained with respect to the left and right rolling of the machine body. At this time, the crop is relayed and transported by following the delivery partner side at the start side and the end side by the twisting operation about the transport axis of the intermediate transport device also by rolling the machine body.

  According to the configuration of claim 1, in the root vegetable harvesting machine, the crop is taken in according to the unevenness of the field by the lifting and lowering operation of the first transporting device by a single operation member, and similarly the lifting and lowering operation of the second transporting device. As a result, both conveying devices are lifted and lowered integrally. As a result, the root vegetable harvesting machine can ensure responsiveness to the unevenness of the field by the high-speed lifting operation of the first transport device during harvesting by a simple operation using a single operating member for lifting operation. In addition, it is possible to avoid interference with the ground side by an integrated lifting operation of the second transport device and the first transport device during traveling.

  According to the configuration of claim 2, the crop container is tilted and supported according to the amount of the crop so that the input drop is maintained within a certain range by the tilt support mechanism, and the damage of the stored crop is suppressed. Can be secured. In addition, since the worker can concentrate on the sorting work without being troubled with accommodation of the harvested crop, the work efficiency can be improved.

  According to the configuration of the third aspect, even when the machine body is rolling, the crop is relayed and conveyed by following the delivery partner side at the starting end side and the terminal end side by the twisting operation about the conveying axis of the intermediate conveying device. As a result, even if the machine body is rolled left and right due to the inclination of the field, the quality is ensured while preventing the fall of the transported crop to the outside by the smooth relay transport with a small transfer drop to the sorting transport device. Further, it is possible to perform a highly accurate sorting operation by maintaining the sorting and conveying apparatus in a horizontal posture.

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
1 and 2 are a side view and a plan view, respectively, of a work vehicle showing an example of the present invention.
As shown in the drawing, a root crop harvesting machine 7 includes a first conveyor (first conveying device) 1 and a second conveyor (second conveying device) by a conveyor mechanism from the front side of a machine body equipped with crawlers 8 and 8. ) 2 is provided so that the first conveyor 1 and the second conveyor 2 can be moved up and down in this order. Then, an intermediate conveyor 13 that receives the crop from the harvesting unit 3 is provided, a sorting and conveying device 9 including a table conveyor (sorting conveyor) 10 that can follow the rolling on the machine body side, and a storage conveyor that conveys the crop to the rear. 17 is provided. And it comprises the accommodating part S by the receiving stand 70 which supports the container (crop accommodation container) C which receives the crop conveyed from this storage conveyor 17 so that tilting operation | movement is possible.

The first conveyor 1 of the harvesting section 3 is capable of traveling while picking up crops such as potatoes exposed on the farm scene by picking up and digging in such a way that the tip descends to the farm scene and can be moved up and down. The second conveyor 2 is transported to the upper part of the machine body, and the harvesting unit 3 is moved up and down, so that the machine body can be swung and moved while avoiding the interference of straw and the like.
The intermediate conveyor 13 that receives the crops transported from the second conveyor 2 has a start end facing the second conveyor 2, a terminal end facing the table conveyor 10, and a relative movement between the start and end to bridge the two.

  The sorting / conveying device 9 is configured so that step 14 can be provided on one side of the table conveyor 10 and the earth and sand discharge conveyor 15 and the small ball discharge conveyor 16 can be discharged outwardly on the opposite side. A sand removal roller device 11 is provided on the front side of the table conveyor 10, and a small ball removal roller device 12 is provided on the rear side. Then, the crop conveyed from the intermediate conveyor 13 is supplied to the earth and sand removing roller device 11 and is sent to the table conveyor 10 side while being sequentially sorted, and the sorting operator on the side step 14 is inspected as a defective product. Select work.

  When the crops move on the small ball removing roller device 12, the small balls are sorted and fall on the small ball discharge conveyor 16 to perform small ball sorting. Harvested crops such as potatoes after the sorting of small balls are conveyed to the rear of the machine body by the subsequent storage conveyor 17 and stored in a container C that is tilted upward by a tilt support mechanism described later.

  The lifting mechanism of the transport device of the harvesting unit 3 will be described in detail. As shown in FIG. 3, an enlarged side view of the main part, the first conveyor 1 is provided with an endless belt 3 a between a front shaft 33 and a rear shaft 30 that are pivotally supported at the front and rear ends of the frame 31, and the endless belt 3 a The cropping device 37 having the gripping tool 46 is opposed to the crop so that the crop can be fed later, and the gauge ring 19 is provided at the tip. The first conveyor 1 then supports the shaft 30 so as to be pivotable at the lower position of the second conveyor 2 and is provided with a driving cylinder 34 protruding forward, and the front end is moved up and down by the pivoting operation. A crop that is configured to be operable and exposed to the field scene is picked up and sent later.

  The second conveyor 2 is configured to be provided with an endless belt 2b provided with a conveying claw 2a made of an elastic body by supporting a lower shaft 23a, an intermediate shaft 24, and an upper shaft 23b on a vertically long frame 22 so as to be bent and conveyed backward. The frame 22 is configured by providing the parallel link 2s and the cylinder 21 at the front of the machine body so as to take over the conveyance of the crop from the first conveyor 1. The support of the second conveyor may be a profile link or a slide mechanism.

  The first and second conveyors 1 and 2 are lifted and lowered by hydraulically connecting the cylinders 21 and 34 in parallel via a switching valve V corresponding to a power steering lever L as shown in FIG. In addition, the load pressure P1 of the cylinder 34 of the first conveyor 1 is set small, and the load pressure P2 of the cylinder 21 of the second conveyor 2 is set large.

  As described above, the rear shaft 30 provided at the rear end of the first conveyor 1 is a fulcrum of vertical rotation, and the cylinder 34 that moves the front end side of the first conveyor 1 up and down from the second conveyor 2 is provided. The second conveyor 2 is supported by parallel links 2 s provided in the machine frame, and is lifted by the cylinder 21 so that the weight applied to the first conveyor 1 and the cylinder 34 is lighter than the weight applied to the second conveyor 2 and the cylinder 21. . The cylinder drive hydraulic pressure is set so that the load pressure P1 of the cylinder 34 of the first conveyor 1 is smaller than the load pressure P2 of the cylinder 21 of the second conveyor 2, so The conveyor 1 is raised first, and then the second conveyor 2 is raised (the reverse is the reverse).

  Therefore, when picking up firewood, onions and the like, the first conveyor 1 picks up the crops up to a certain height and conveys them higher by the second conveyor 2. Since the weight of the first conveyor 1 is only the weight of the first conveyor 1 at the time of field work, the first conveyor 1 can be floated by setting the hydraulic valve in a free state. Can be kept constant. In addition, since the first conveyor 1 can be raised by a required height, the work becomes smooth and the efficiency increases. Also, when traveling, the whole can be raised and loaded on a truck.

Next, the container support will be described.
As shown in FIG. 5 for a side view of the container support start state and FIG. 6 for a rear view before the container is mounted, a lifting frame 65 is attached to the rear of the harvester body via upper and lower links 67 and 68. The shaft is supported, and a lift cylinder 69 is attached and driven so as to be movable up and down. Further, an L-shaped container pedestal 70 is pivotally supported at the upper end of the lifting frame 65 so as to be tiltable, and a tilt cylinder 73 is connected to constitute a tilt support mechanism.

  A shooter 61 is attached to the input position at the rear end of the storage conveyor 17, and a level sensor 61s for detecting the bottom of the container C and the upper end of the crop stored in the container C on the lower surface thereof is disposed. Further, a tilt sensor 70 s for detecting the angular position of the upright posture of the container cradle 70 and a lower limit sensor 65 s for detecting the lower limit position of the lifting frame 65 are provided. The sensor uses a limit switch or a proximity switch.

  As shown in FIG. 7 for the control structure of the container support, the controller 62 receives signals from the sensors 61s, 70s, and 65s and drives the tilt cylinder 73 and the lift cylinder 69 to extend and contract via the control valves. The buzzer lamp can be used for notification.

  Specifically, the operation of the lift cylinder 69 and the tilt cylinder 73 starts the input of the crop from the state in which the container cradle 70 is inclined so that the container C lies at the position where the elevating frame 65 is raised. Then, as shown in FIG. 8A, every time the level sensor 61s detects the crop accumulated in the container C for a certain time, the drop of the crop input from the storage conveyor 17 is suppressed within a certain range. Then, the container cradle 70 is tilted by the tilt cylinder 73 to gradually erect the container C. When the tilt sensor 70s detects the angular position of the upright posture of the container cradle 70 as shown in FIG. 5B, the lifting frame 65 is lowered by the detection of the level sensor 61s thereafter. Further, when the lower limit sensor 65s detects the lower limit position of the elevating frame 65, as shown in FIG.

  With the above configuration, the selected crop is accommodated in the container C on the support table, and at this time, the container C is inclined and supported according to the amount of the crop so as to maintain the input drop within a certain range by the tilt support mechanism. Therefore, damage to the contained crops can be suppressed. Accordingly, the quality of the stored crop is ensured, and the operator can concentrate on another work such as the sorting work without being bothered by the storage of the harvested crop, so that the work efficiency can be improved.

Next, the selection unit will be described.
As shown in FIGS. 9 and 10, the sorting unit can swing the table conveyor 10 left and right by the front support shaft 10s and the rear support shaft 10t, as shown in FIGS. 9 and 10 in plan view (a) and front view (b). And an intermediate conveyor (intermediate transport device) 13 is provided between the table conveyor (sorting conveyor) 10 and the second conveyor 2 of the harvesting section 3. The intermediate conveyor 13 has a flexible structure with an elastic endless belt, and is arranged at a position where the front end faces the second conveyor 2 and the rear end faces the table conveyor 10.

  The intermediate conveyor 13 takes over and conveys the crop from the second conveyor, and then the sorting and conveying device 9 sorts and develops the crop while feeding it in a predetermined manner with respect to the left and right rolling of the machine body. At this time, even if the table conveyor 10 is swung and adjusted by the cylinder 10c in accordance with the rolling of the machine body due to the inclination of the field, the intermediate conveyor 13 is twisted according to the transport axis, so that the transfer partner on the start end side and the end end side The crop can be smoothly relayed and conveyed because it can follow the side.

  Therefore, even if the machine rolls left and right due to the inclination of the farm field, the horizontal posture of the sorting and conveying device 9 can be maintained, so that crops are not biased even in the work on the sloping ground, so that a high-precision sorting work can be performed. In addition, since the sorting and conveying device 9 can maintain a horizontal position and maintain a constant drop when the crop is transferred from the second conveyor 2 to the intermediate conveyor 13, damage due to bruise when the crop is dropped can be reduced. The quality of crops can be maintained.

Next, the detailed configuration of the front portion of the first conveyor 1 will be described.
An enlarged plan view (a) and a side view (b) of the main part of the front part of the first conveyor 1 are shown in FIG. 33a is provided. The rotary roller 33a is formed in a polygonal cross section as shown in FIGS. 12 (a to 12c) so that the crop on the soil surface is pushed up from below at a position submerged from the soil surface of the field. Reverse drive. The position of the rotating roller 33a may be adjustable back and forth and up and down.

  As for the positional relationship of the rotating roller 33a, the cropping device 37 is offset forward from the tip of the first conveyor 1 to press the crop from above, and the roller outer diameter is positioned on the extended line of the conveying surface of the first conveyor 1, The rotational outer diameter of the scraping blade is arranged to the front from the rotational diameter. The upper surface of the inclined surface in the pick-up direction of the first conveyor 1 and the upper part of the rotating roller 33a are in a straight line, the tip of the first conveyor 1 is at the tip of the roller, and the scraping device 37 works effectively up to the upper part of the rotating roller 33a. Use as long as possible.

  By the rotation roller 33a having the above-described configuration, the crop stays on the front surface due to a step corresponding to the outer diameter of the front shaft 33 of the first conveyor 1 or is pressed by the blade attached to the first conveyor 1 to damage the crop. To prevent. In addition, the crop on the soil surface can be smoothly picked up on the conveyor while preventing weeds and the like from being wound when the blade cannot be cut.

  Further, as shown in FIG. 13, a perspective view (a) and an enlarged side view (b) of the rotating roller 33a have an elastic body 33b fixed to a plurality of opposing surfaces or the entire surface in a detachable manner in the longitudinal direction. One end side of the elastic body 33b in the rotation direction is offset from the roller end surface, and the tip thereof is set as the maximum rotation diameter. By comprising in this way, since the offset part of this elastic body 33b contacts a crop ahead, it can pick up without damaging a crop. The rotating roller 33a may be a circular section such as a pipe instead of a polygonal body.

  In the above case, by forming the roundness 33c on the rear end side of the polygonal elastic body 33b of the rotating roller 33a, the offset portion of the elastic body 33b escapes backward in the ground and repels near the ground. This facilitates the movement of the crop, so that the crop can be picked up smoothly.

Next, separation processing of earth and sand stalks and leaves will be described.
As shown in the side view of the main part of FIG. 14, a primary separation processing unit 4 for earth removal and foliage processing is provided in the takeover unit during the transition from the first conveyor 1 to the second conveyor 2, and the second conveyor During the transition from 2 to the sorting conveyor 10, a foliage processing unit 10a and a soil removal unit 10b are provided as secondary separation processing units. The lower processing apparatus is composed of a pair of rubber-covered rollers, and the upper stage is composed of a roller on the upper side and a number of disks on the lower side. The direction of rotation is set to the direction of pulling in with each pair of rollers.

  In the above configuration, the lower processing device mainly removes long foliage (main stem) and pebbles, etc., thereby reducing the load on the transport unit, and the upper stage extracts the remaining foliage and the transported soil mass. Therefore, most of the foliage that could not be processed by one foliage processing apparatus can be extracted. In this way, by performing a two-stage earth and sand removal process and a foliage process of removing a part of the foliage and pebbles in the front stage and removing the foliage and soil clumps remaining in the rear stage, the interruption of the work due to the catch of the foliage, It is possible to reduce a decrease in the capacity of the container C due to the mixing of the soil mass, and it is possible to perform an efficient pick-up operation.

  Further, as shown in the enlarged side view (a) of the main part in FIG. 15 and the B arrow view (b) thereof, the primary separation processing unit 4 is provided with a crop by a rubber roller 4a and an equally spaced disk disk 4b. Separated from earth and sand. And, in the gap between the disk and the second conveyor 2, a drop-off preventing material 4c made of a swingable bar is disposed downward so that the crop can move to the next conveyor without dropping. Thus, the bars 4d and 4d that eliminate the gap and restrict the rocking range of the bar are provided at the front and rear. The prevention material has a ring shape at the top and a rod shape at the bottom, and the ring part covers the rotating shaft of the disk so that it can swing freely. Be regulated.

  By providing earth and sand removal as in the above configuration, crops are prevented from falling off, and foreign matter wrapping is prevented, so that only the crops move to the next conveyor, facilitating post-processing and maintenance. Efficiency is improved. Therefore, according to the above configuration, the interruption of work and the inflow of earth and sand to the container C caused by the foliage and earth and sand directly on the next conveyor at the joint between the conveyors are reduced, and the subsequent maintenance becomes easy. In addition, it is possible to solve problems such as falling off of crops, stalks and leaves, and weed wrapping when a disc or the like is arranged in the middle.

Next, the scraping device will be described.
As shown in the side view of the main part of FIG. 16, a reinforcing member 46 a made of an elastic body is provided in a gripping tool 46 made of an elastic body loop plate provided in the scraping device 37. By providing the reinforcing member 46a, the shape of the gripping tool 46 is stabilized even when picking up the crop at a steep slope, so that it is difficult for the crop to be missed from the gripping tool 46. Further, since the reinforcing member 46a is an elastic body, damage can be suppressed even if the crop comes into contact with the gripping tool 46. The reinforcing member 46a may be integrated with the loop plate.

Next, the crop storage device will be described.
As shown in FIGS. 17 to 19 in the plan view, the side view, and the rear view, the crop storage device is configured so that two flexible container frames 81a and 81b in which a flexible container bag can be set can be moved vertically and horizontally by a cylinder. The two flexible container frames are connected by a link 82, and when one side is at the storage position P, the other is set to a position where the other projects sideways.

  The storage device having the above configuration has two flexible container frames 81a and 81b in which a flexible container bag can be set at the storage opening position P, and can be moved up and down and left and right by a cylinder. Therefore, when setting the first flexible container frame, A sponge board that receives the bag is raised by the cylinder. These two flexible container frames 81a and 81b are connected by a link 82, and when one side is adjusted to the storage position P, the other is a position where it projects to the side attachment / detachment position. Both vertical movements move simultaneously, and the tilt moves up and down only at the storage position by another device.

  When working, the first flexible container frame 81a (81b) is set, and when it is full, the second flexible container frame 81b (81a) placed on either the left or right side is moved by the cylinder 83, and the crop storage position Set to P. In this way, two flexible container bags can be set at the time of operation, so that the second flexible container frame can be set in a short time when one of the flexible container bags is full, so that it can be loaded and unloaded. The time required for attaching the flexible container bag can be shortened, and efficient work can be performed.

It is a side view of a work vehicle. It is a top view of a work vehicle. It is a principal part expanded side view of a harvesting part. It is a hydraulic system figure of raising / lowering control. It is a principal part side view of a container support stand (injection start state). It is a rear view of a container support stand (before container mounting). It is a control block diagram of a container support stand. It is a principal part side view (ac) of the downward movement of a container support stand. It is the top view (a) and front view (b) of a selection part. It is a principal part side view of a selection part. It is the principal part enlarged plan view (a) of the 1st conveyor front part, and its side view (b). It is a cross-sectional shape (ac) of a roller. It is the single-piece | unit perspective view (a) and enlarged side view (b) of a rotating roller. It is a principal part side view of the separation processing of earth and sand stem leaves. It is a principal part enlarged side view (a) and its B arrow directional view (b). It is a principal part side view of a scraping apparatus. It is a top view of a crop storage device. It is a side view of a crop storage device. It is a rear view of a crop storage device.

Explanation of symbols

1 First conveyor (first conveyor)
2 Second conveyor (second conveyor)
2s Parallel link 3 Harvesting section 7 Root vegetables harvester 8 Crawler 9 Sorting and conveying device 10 Table conveyor (sorting conveyor)
10s front support shaft 10t rear support shaft 13 Intermediate conveyor (intermediate transport device)
17 Storage conveyor 21 Cylinder 34 Cylinder 61 Chute 70 Container stand C Container L Operation member (hydraulic lever)
P1 load pressure P2 load pressure

Claims (3)

A first transport device that takes in a field crop from the front and sends it forward, a second transport device that supports the first transport device so that it can be raised and lowered, and relays the crop to the machine body side, and this second transport device In a root vegetable harvester consisting of a machine that can run and receive crops while supporting it up and down,
Both said conveying apparatuses are equipped with the drive system which a 1st conveying apparatus and a 2nd conveying apparatus raise / lower separately according to the operation mode of the operation member for common raising / lowering operation, The root vegetables harvester characterized by the above-mentioned.   The airframe is provided with a support base for supporting a crop storage container for storing the received crops at a predetermined position, and the support base accommodates the crop so as to maintain the input drop in the crop storage container within a certain range. The root vegetable harvester according to claim 1, further comprising a tilting support mechanism that tilts and supports the container according to the amount.   The machine body supports a sorting and transporting device that feeds received crops so as to be sorted and deployed so as to be rotatable about its transport axis, and intermediate transport that relays and transports between the sorting and transporting device and the second transporting device. The intermediate transfer device is configured to be twistable between the start and end with respect to the transfer axis, and the start end side is fixedly connected to the end of the second transfer device. The root vegetable harvesting machine according to claim 1, wherein the side is fixedly connected to the starting end of the sorting and conveying apparatus.

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