JP2012245506A - Continuous weight sorting device of crop - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a weight detection plate and a conveying belt from sticking to each other with water, resulting to erroneous detection of a weight of a crop at a weight sorting part of the continuous weight sorting device of the crop.SOLUTION: The continuous weight sorting device of the crop includes the weight detection plate 78 on a lower side of the conveying belt 68 for conveying the crop, detects the weight of the crop conveyed on the conveying belt 68 by the weight detection plate 78, and the crop of not less than a predetermined weight is ejected by an ejection plate 88 to a collecting chute 93. A draining groove 110 inclined with respect to a conveying direction is formed on an entire or a part of an upper surface of the conveying belt 68.

Description

  The present invention relates to a continuous weight sorting apparatus for crops that sorts each grade by weight set while transporting crops such as carrots.

  As described in the following patent document, the crop continuous weight sorting device takes out a crop having a set weight while being transported by a transport conveyor, and classifies the crop.

JP-A-7-312964 Japanese Patent Laid-Open No. 2002-255057

  The weight of the crop is measured by installing a weight detection plate below the conveyor belt to detect the conveyor belt that sinks with the weight of the crop, and the weight of the crop is measured. This water wets the conveyor belt and sticks to the weight detection plate, making it impossible to accurately classify the crop by erroneously detecting the weight of the crop.

  Therefore, an object of the present invention is to eliminate erroneous detection of the weight of a crop due to the weight detection plate and the conveyor belt sticking together with water in the weight sorting section of the continuous weight sorting device for crops.

The problems of the present invention are solved by the following technical means.
According to the first aspect of the present invention, a weight detection plate 78 is provided below the conveyance belt 68 that conveys the crop, and the weight of the crop conveyed on the conveyance belt 68 is detected by the weight detection plate 78 so as to exceed a predetermined weight. In the continuous weight sorting apparatus for crops that jumps out the crops to the collection shooter 93 by the jumping plate 88, the crop is characterized in that a draining groove 110 inclined with respect to the transport direction is formed on the entire upper surface or a part of the upper surface of the transport belt 68. This is a continuous weight sorter.

  With this configuration, water that has entered between the conveyance belt 68 and the weight detection plate 78 is discharged to the outside through the draining groove 110 that is inclined with respect to the conveyance direction as the conveyance belt 68 moves. The weight detection plate 78 is attached to prevent erroneous detection of crops, and accurate weight selection is performed.

  The invention according to claim 2 is characterized in that the water drain groove inclination angle θ2 with respect to the conveying direction of the water drain groove 110 is substantially the same as the maximum spring angle θ1 of the jump plate 88. A weight sorter was used.

  With this configuration, water that has entered the draining groove 110 can easily move sideways along with the crops that move to the side of the conveyor belt 68 along the jumper plate 88 on the conveyor belt 68, thereby effectively discharging water. Done.

  According to the third aspect of the present invention, the weight detecting plate 78 is provided so as to be horizontally rotatable, and the weight detecting plate 78 is appropriately fixed so that the water draining groove inclination angle θ2 of the draining groove 110 is maximized. The crop continuous weight sorting apparatus according to claim 2, wherein the crop can be adjusted to be larger or smaller with respect to the angle θ1.

  With this configuration, when a large amount of water has entered the draining groove 110, the draining groove inclination angle θ2 of the draining groove 110 is increased with respect to the maximum jumping angle θ1 of the jumping plate 88, and water is effectively discharged. When the amount of water that has entered the draining groove 110 is small, the draining groove inclination angle θ2 of the draining groove 110 is made smaller than the maximum jumping angle θ1 of the jumping plate 88, thereby reducing the transport resistance of the transport belt 68 and improving efficiency. Weight selection can be performed.

  The invention described in claim 4 is characterized in that the draining groove 110 provided in the weight detection plate 78 is provided continuously from at least the center of the width of the weight detection plate 78 toward the recovery shooter 93. A continuous weight sorter for crops.

  With this configuration, water between the conveyor belt 68 and the weight detection plate 78 is effectively discharged through the draining groove 110 by a feeding action in which the crop on the conveyor belt 68 is sent to the recovery shooter 93 by the jumping plate 88.

  According to the fifth aspect of the present invention, a right draining groove 110a and a left draining groove 110b are provided from the center of the weight detection plate 78 toward both left and right sides, a recovery shooter 93 is provided on the terminal side of the right draining groove 110a, The continuous weight sorting device for crops according to claim 1, wherein a water tank 123 leading to the recovery shooter 93 is provided at the end of the groove 110b.

  With this configuration, water in the right half of the weight detection plate 78 is guided to the recovery shooter 93 through the right drain groove 110a, and water in the left half of the weight detection plate 78 is guided to the recovery shooter 93 through the water tank 123. As a result, water between the conveyor belt 68 and the weight detection plate 78 is quickly discharged.

  The invention according to claim 6 is characterized in that a central draining groove 110c is provided in the center of the right and left of the weight detection plate 78 from the upper conveyance to the lower conveyance, and the right draining groove 110a and the left draining groove 110b are passed through the central draining groove 110c. A continuous weight sorting apparatus for crops according to claim 5.

  With this configuration, the water in the center of the weight detection plate 78 flows through the central draining groove 110c, so that the water between the conveyor belt 68 and the weight detection plate 78 is discharged more quickly.

  In the invention according to any one of claims 1 to 6, water between the conveyor belt 68 and the weight detection plate 78 is efficiently discharged, and the weight detection plate 78 and the conveyor belt 68 are stuck together to make an erroneous crop detection. Eliminates the need for accurate weight sorting.

Side view of the alignment transport unit Plan view of the alignment transport unit Top view of sorting conveyor Side view of sorting conveyor (A) Partial enlarged front view of first aligned transport conveyor, (b) Partial enlarged front view of second aligned transport conveyor Transmission mechanism diagram of the alignment transport unit Overall side view of crop sorting device Overall plan view of crop sorting device Side view of sorting and conveying section Plan view of sorting and conveying section (A) Plan view of main part of takeover shooter, (b) Side view of main part of takeover shooter, (c) Rear view of main part of takeover shooter (A) Plan view of main part of sorting and transporting part, (b) Side view of main part of sorting and transporting part Cross section of the main part of the sorting and conveying section Plan view of main parts of sorting and conveying section Rear view of main parts of sorting and conveying section Front view of tension roller Front view of another configuration example tension roller (A) Front view of tension roller of another configuration example, (b) Front view of tension roller of another configuration example in a disassembled state (A) Side view of the scraper plate, (b) Side view showing forward and backward movement of the scraper plate (A) Main part rear view of scraper plate, (b) Main part rear view showing front and rear movement of scraper plate, (c) Main part rear view showing left-right rotation of scraper plate Enlarged plan view of the main part of the weight detection device with a draining groove formed The principal part enlarged plan view of the weight detection apparatus which formed the draining groove of another Example. The principal part enlarged plan view of the weight detection apparatus which formed the draining groove of another Example. The principal part enlarged plan view of the weight detection apparatus which formed the draining groove of another Example. The principal part enlarged plan view of the weight detection apparatus which formed the draining groove of another Example. The principal part enlarged plan view of the weight detection apparatus which formed the draining groove of another Example.

Embodiments of the present invention will be described.
The carrot grade sorting apparatus shown as one embodiment of the continuous weight sorting apparatus for crops is a storage section A for storing washed carrots, a pumping transport section B for transporting ginseng upward from the storage section A, and a pumping transport. Carrying the carrot from the part B and transferring the carrot according to the set conditions, the transfer device D comprising the alignment transport unit C for aligning the carrots one by one and the carrot from the transfer device D, and jumping out to the recovery unit And a sorting and conveying unit E.

  In the present application, the ginseng to be sorted is attached with mud when it is excavated and harvested from the field, and therefore, a washing operation by a washing machine is generally performed before the sorting operation. At this time, the mud and the foreign substances adhering to the carrot and the white thin skin covering the surface of the carrot are removed. Since the removed mud and thin skin are mixed in the wash water, the wash water from which the carrots have been washed has a stronger viscosity than ordinary water (such as tap water or river water). Therefore, in the present application, the term “water” indicates that having a strong viscosity as described above.

First, the storage unit A will be described.
As shown in FIGS. 1, 2, 7, and 8, a hopper 2 that stores ginseng is attached to the front side of the main frame 1 in the conveyance direction, and the hopper 2 is inclined downward at the front end of the hopper 2 on the upper side in the conveyance direction. By attaching the inclined plate 2a in the posture and attaching the left and right inclined plates 2b and 2b in the downward inclined posture to the left and right side ends of the hopper 2, the storage portion A is configured.

Next, the draw-up conveyance unit B will be described.
As shown in FIGS. 1, 2, 7 and 8, left and right side plates 3, 3 are attached to the inner lower part of the hopper 2, and left and right side upper plates 4, 4 are attached to the rear ends of the left and right side plates 3, 3. Install in a rear-upward tilt position. Further, a drive shaft 6 having left and right drive sprockets 5 and 5 attached to both left and right ends is rotatably mounted between the left and right rear end portions of the left and right draw upper plates 4 and 4 so that the left and right draw plates 3 and 3 and the left and right draw upper plates 4 and 4 are rotated. The left and right intermediate shaft 9 with the left and right tension sprockets 8 and 8 pivotally attached to the boundary between the left and right side plates 3 and 3 is rotatably mounted, and the driven shaft 11 with the left and right driven sprockets 10 and 10 pivotally attached to the front ends of the left and right side plates 3 and 3 is rotatable. Install.

  The left and right drive chains 12, 12 are wound around the left and right drive sprockets 5, 5, the left and right tension sprockets 8, 8, and the left and right driven sprockets 10, 10 in an endless manner. Further, a plurality of transport rollers 14 for transporting the carrot to the lower side in the transport direction are rotatably mounted between the left and right of the left and right transmission chains 12 and 12, and the front and rear intervals between the transport rollers 14 are narrow with the wide spacing portion S1. Arranged so that the spacing portions S2 are alternately formed, a discharge chute 15 for discharging carrots is attached to the terminal portions of the left and right pumping upper plates 4, 4 to constitute a pumping conveyor 16. The transmission configuration of the pumping up conveyor 16 is shown in FIG.

  If the discharge shooter 15 is made of a hard member such as metal or plastic, the discharge position is easy to be stabilized. If the discharge shooter 15 is made of a soft member such as vinyl chloride or sponge, the first left and right right below the transfer end of the transfer conveyor 16 Since the carrots can be placed on the transport start end portions of the alignment transport conveyors 37 and 37, the carrots can be efficiently aligned and transported, and the end portions of the discharge shooter 15 can be prevented from being damaged by the carrots. Product value is improved.

  Then, a support base 17 is attached to the upper side of the main frame 1 at a substantially central portion in the front-rear direction, and a drive motor 18 that supplies driving force to the pumping conveyor 16 is attached to the upper part of the support base 17. Also, a pumping transmission case 19 is attached to the left and right sides of the left and right pumping upper plates 4, 4, and an output sprocket 20 is attached to an inner upper part of the pumping transmission case 19 on the left and right ends of the drive shaft 6. The input sprocket 21 is attached to the lower part of the pumping transmission case 19 by being attached to the input shaft of the drive motor 18, and the pumping transmission chain 22 is wound endlessly between the output sprocket 20 and the input sprocket 21. The draw-up conveyance part B is comprised by hanging.

  According to the said structure, by arrange | positioning the space | interval of the front-back direction between conveyance rollers 14 ... so that the wide space | interval part S1 and the narrow space | interval part S2 may be formed alternately, in the wide space | interval part S1, it is S to L size. Carrots are mixed and transported, or 2L and 3L size carrots are transported one by one, and S to L size carrots are transported in narrow spaces, and 2L and 3L size carrots are Since it is moved to the wide spacing portion S1, it is possible to prevent a large amount of 2L and 3L carrots from being introduced into the transport start end portions of the left and right first aligned transport conveyors 37 and 37, which will be described later, and improve the carrot alignment accuracy. Thus, the sorting accuracy in the sorting / conveying section E described later is also improved.

  Of the front and rear intervals between the transport rollers 14..., The wide interval portion S1 has a width of about 80 mm to 100 mm, which is an average diameter of 2L and 3L size carrots, and the narrow interval portion has a width of S to L size. When the average diameter of the carrot is about 60 to 80 mm, the above-described effect is more easily exhibited, so that the alignment accuracy of the alignment device and the selection accuracy of the selection conveyance unit D can be further improved.

Next, the alignment transport unit C will be described.
As shown in FIGS. 1 to 5, 7, and 8, an alignment conveyance frame 23 is attached to the upper rear side of the main frame 1, and left and right side plates 24 and 24 are attached to the upper left and right sides of the alignment conveyance frame 23. And the mountain which distributes the carrot discharged | emitted from the conveyance termination | terminus part of the draw-up conveyance conveyor 16 to either the left or right of the 1st left-right aligned conveyance conveyors 37 and 37 mentioned later in the approximate center part between right and left of this right-and-left side plates 24 and 24. A mold distribution plate 25 is attached, and ginseng which is not in a posture is dropped on the rear side of the distribution plate 25 and on the side of the second left and right second aligned transport conveyors 48 and 48, which will be described later. Left and right openings 26, 26 that pass through the lower space of the conveyors 48, 48 and move in the left-right outer direction of the machine body are formed.

  It should be noted that when a flat polyvinyl chloride plate or the like is laid on the top surface of the distribution plate 25, the carrots are likely to slide down, so that the left and right first aligned transport conveyors 37 can be manually performed without the carrots stagnating on the distribution plate 25. , 37 is not necessary, so that the work efficiency is improved and the large-sized ginseng can be prevented from being continuously conveyed, so that the alignment accuracy and the sorting accuracy are improved.

  Further, a cushion member 27 having a thickness of about 3 to 5 mm is laid in a mountain shape at a position where the carrot falls from the up-conveying conveyor 16 to the distribution plate 25, that is, at the front portion of the distribution plate 25. Since the carrot can be prevented from being damaged by the impact of falling, the product value of the carrot is improved.

  Further, if the lengths of the left and right openings 26 and 26 are set to about 240 mm to 400 mm, even if two ginsengs having an average length (120 to 200 mm) enter the left and right openings 26 and 26 at the same time. Since the left and right openings 26, 26 are prevented from being clogged, it is not necessary for the operator to remove the clogged carrot, and the work efficiency is improved.

  Then, an alignment driving motor 28 for supplying driving force to the left and right first alignment conveying conveyors 37 and 37 and the left and right second alignment conveying conveyors 48 and 48 is attached to the alignment conveying frame 23, and output to the output shaft of the alignment driving motor 28. A sprocket 29 is pivotally attached. The first left and right drive pulleys 31 and 31 are formed by axially attaching the input sprocket 30 near the central portion in the front-rear direction of the left and right side plates 24 and 24 and the right and left first drive pulleys 31 and 31 each having a groove portion around which three transport belts are wound. The first drive shaft 32 is rotatably mounted, and left and right first driven pulleys 33 and 33 each having a groove portion around which three transport belts are wound are disposed in the vicinity of the front end portions of the left and right side plates 24 and 24 in the transport direction. A driven shaft 34 is rotatably attached.

  Further, the left and right first transport belts 35i, 35o are wound around endless and inner grooves of the left and right first drive pulleys 31, 31 and the left and right first driven pulleys 33, 33 in an endless manner, and the output sprocket 29, By winding the alignment transmission chain 36 endlessly around the input sprocket 30, left and right first alignment conveyance conveyors 37, 37 are configured. The transmission configuration of the left and right first aligned conveyers 37, 37 is shown in FIG.

  The left and right side plates 24, 24 of the first left and right aligned conveyors 37, 37 are formed with long holes in the vertical direction, and the first driven shaft 34 is attached to the long holes to change the vertical positions of the left and right driven pulleys 33, 33. If possible, the inclination angle of the left and right first aligned transport conveyors 37 and 37 can be changed according to the size and growth conditions of the carrots, so that the carrots stagnate on the left and right first aligned transport conveyors 37 and 37. Is prevented and work efficiency is improved.

  Further, when the average size of the carrots is small or is a fragile product, the conveyance start end portions of the left and right first alignment conveyance conveyors 37 and 37 are raised so that the conveyance end portion of the pumping conveyance conveyer 16 and the left and right first By reducing the drop between the alignment conveyors 37 and 37, the carrot is prevented from being damaged by the impact of the drop, and the commercial value of the carrot is improved. On the contrary, when the average size of the carrot is large, the conveyance start end portions of the left and right first alignment conveyance conveyors 37 and 37 are lowered, and the conveyance end portion of the pumping conveyance conveyer 16 and the left and right first alignment conveyance conveyors 37 and 37. And a large space is secured to prevent the transporting operation from being interrupted due to clogging of carrots between the pumping transport conveyor 16 and the left and right first aligned transport conveyors 37, 37. The efficiency is improved, and a large amount of carrot can be put on the transport start end portions of the left and right first aligned transport conveyors 37 and 37.

  Further, since the first drive shaft 32 serves as a pivot point for the left and right first aligned transport conveyors 37 and 37, the left and right first aligned transport conveyors 37 and 37 can be moved left and right even if the transport start end side is moved in the vertical direction. Since the height relationship between the first alignment conveyors 37, 37 and the second left and right second alignment conveyors 48, 48 hardly changes, the carrots are left and right first alignment conveyors 37, 37 and left and right second alignment conveyors 48, 48. Since stagnation is prevented and carrots are aligned and transported smoothly, work efficiency is improved.

  An output sprocket 38 is pivotally attached to the substantially central portion of the first drive shaft 32 in the left-right direction, and an input sprocket 39 is pivotally attached to the rear side of the first drive shaft 32 in the transport direction and at the substantially central portion of the left-right direction. The second drive shaft 40 is attached rotatably. Furthermore, left and right second drive pulleys 43 and 43 configured by independently providing a receiving pulley 42 between a pair of left and right third drive pulleys 41i and 41o on both left and right side portions of the second drive shaft 40 are provided. Install. Also, a pair of left and right second driven pulleys 44 and 44, each having a groove portion around which two conveyor belts are wound, are provided on both left and right sides of the second driven shaft. Axis.

  Then, flanges 45, 45 larger in diameter than the left and right second drive pulleys 43, 43 are attached to both the inner and outer sides of the second drive pulleys 43, 43, respectively, and the left and right second drive pulleys 43, 43 and the left and right second driven pulleys. The second alignment transport belts 46i and 46o are wound endlessly around 44 and 44. Further, a relay transmission chain 47 is wound around the output sprocket 38 and the input sprocket 39 in an endless manner to constitute left and right second aligned transport conveyors 48 and 48. The transmission configuration of the left and right second aligned transport conveyors 48, 48 is shown in FIG.

  Further, between the left and right first conveying belts 35i, 35o and the left and right second aligned conveying belts 46i, 46o, and the left and right first driving pulleys 31, 31, left and right first driven pulleys 33, 33, and left and right receiving pulleys 42, 42, the central conveyor belts 49, 49 are wound endlessly to form an alignment conveyor 50.

  The thickness (vertical height) of the left and right first conveyor belts 35i, 35o and the left and right second aligned conveyor belts 46i, 46o is configured to be greater than the thickness (vertical height) of the central conveyor belts 49, 49. Specifically, the left and right first conveying belts 35i, 35o and the left and right second aligned conveying belts 46i, 46o are configured as hexagonal hexagonal belts in sectional view, and the central conveying belts 49, 49 are trapezoidal trapezoidal belts in sectional view ( (V belt).

  In addition, the ginseng transport posture is adjusted and moved above the left and right openings 26, 26 in front of the left and right openings 26, 26 and above the transport paths of the left and right second aligned transport conveyors 48, 48. 2 When a plurality of carrots are placed on the alignment conveyors 48, 48, a pair of left and right first guide plates 51, 51 for dropping excess carrots to the left and right openings 26, 26 are arranged in the second left and right direction as the lower side in the transport direction. It is attached to the upper side of the conveyors 48, 48.

In addition, the 1st space | interval 51a of the conveyance lower side edge part of this 1st guide plates 51 and 51 is good to set to about 60-80 mm which is the space | interval which one carrot can pass.
Then, the posture of the carrots whose posture is disturbed when passing over the left and right openings 26 and 26 is set behind the left and right openings 26 and 26 and above the left and right second aligned conveyers 48 and 48. The right and left second guide plates 52, 52 that are corrected and dropped to the left and right openings 26, 26 when the carrots coming out of the right and left second sorting and conveying conveyors 48, 48 contact with each other due to the posture are disturbed are located closer to the lower side in the conveying direction. Install so that the distance between the left and right is narrow.

  The second interval 52a at the lower end of the transport guide side of the second guide plates 52, 52 is greater than the first interval 51a at the end of the transport guide side of the first guide plates 51, 51. It is good to set to about 80-100 mm which is the space | interval which can pass the carrot which became sideways with respect to the conveyance direction of the conveyance conveyors 48 and 48, correct | amending an attitude | position.

  Further, if the left and right first guide plates 51 and 51 and the second guide plates 52 and 52 are made of a soft material such as soft rubber or vinyl chloride, the carrots can be prevented from being damaged, so that the product value of the carrots is improved. In addition, since the carrot is flexibly bent when it comes into contact with the carrot, it is prevented that the carrot being conveyed is stagnated, and the work efficiency is improved.

  Furthermore, left and right aligned discharge shooters 53 and 53 for discharging carrots one by one at the rear end of the aligned transfer frame 23 and at the transfer end portions of the left and right second aligned transfer conveyors 48 and 48 are attached in a downward inclined posture. By aligning the left and right feedback shooters 54, 54 that allow ginseng to flow down to the hopper 2 on the outside of the outlets of the openings 26, 26 so as to be tilted downward toward the upper side in the transport direction and detachably attached, the alignment transport unit C Composed.

  If flat vinyl chloride plates or the like are laid on the surfaces of the left and right openings 26 and 26 and the left and right feedback shooters 54 and 54, the impact of falling on the carrot is absorbed, so that the carrot is damaged. Is prevented and the product value is improved. In addition, by laying a flat vinyl chloride plate or the like, ginseng is easily slid off from the left and right openings 26 and 26 and the left and right feedback shooters 54 and 54. Therefore, on the left and right openings 26 and 26 and the left and right feedback shooters 54 and 54 Since the work of returning the carrots stopped in step 1 to the hopper 2 manually is omitted, the labor of the operator is reduced and the work of aligning and conveying can be automated, so that the work efficiency is improved.

  According to the above configuration, by providing the mountain-shaped distribution plate 25 below the conveyance end portion of the draw-up conveyance conveyor 16, the left and right first aligned conveyance conveyor Since it can be sent to either one of the left and right sides of 37, 37, the alignment work can be automated, and the work efficiency is improved.

  And by forming the left and right openings 26, 26 in the distribution plate 25, the carrots riding on the left and right second aligned transport conveyors 48, 48 in an unstable posture or a plurality of carrots riding at the same time are dropped. Therefore, the carrots discharged from the left and right second aligned transport conveyors 48 and 48 are discharged in a stable posture and one by one. In addition, when the sorting and conveying unit D that performs the sorting operation according to the size and shape of the carrots is installed at the rear of the sorting and conveying unit C, it is possible to reduce missorting by introducing the carrots one by one. it can.

  In addition, left and right feedback shooters 54 and 54 that allow the ginseng to flow down to the hopper 2 are provided on the outside of the discharge ports of the left and right openings 26 and 26 so as to be inclined downward toward the upper side in the transport direction, thereby providing the second left and right aligned transport. Since the carrots that have fallen from the conveyors 48 and 48 can be automatically returned to the hopper 2 and transported again by the pumping and transporting conveyor 16, the labor of the operator can be reduced and the labor efficiency can be reduced. Will improve.

  Further, the left and right first alignment and conveyance conveyors 37 and 37 are thinner than the left and right first alignment and conveyance belts 35i and 35o and the left and right first alignment and conveyance belts 35i and 35o provided between the left and right first alignment and conveyance belts 35i and 35o. Since it is composed of three belts of the central transport belt 49 (with a short vertical width), the left and right first aligned transport conveyors 37 and 37 have a concave shape when viewed from the front (back view). Therefore, the ginseng can be transported in the longitudinal direction along the transport direction of the alignment conveyor 50. The left and right second align transport conveyors 48, 48 It is easy to send carrots with good posture one by one, and the alignment accuracy improves.

  The central transport belts 37 and 37 are wound around the second drive pulleys 43 and 43 on the transport start end side of the left and right first aligned transport conveyors 37 and 37 and the left and right second aligned transport conveyors 48 and 48. Since there is no gap between the first alignment conveyors 37, 37 and the left and right second alignment conveyors 48, 48, it is possible to prevent clogging of ginseng with a small size such as thin ginseng at the tip or poor growth in the gap. In addition, since it is not necessary for the operator to remove the carrot clogged by manual work, the work can be automated, and it is possible to prevent the carrot alignment and conveyance from stagnation, thereby improving the work efficiency.

  Further, the left and right second drive pulleys 43 and 43 are configured such that the receiving pulley 42 is rotatably provided between the pair of left and right third drive pulleys 41i and 41o, whereby the left and right third drive pulleys 41i and 41o are configured. When driving the left and right second aligned transport conveyors 38, 38 by rotating the second drive shaft 40, the receiving pulley 42 rotates at the same speed as the left and right first aligned transport conveyors 37, 37 by rotating the central transport belts 49, 49. If the speed difference between the left and right first aligned transport conveyors 37 and 37 and the left and right second aligned transport conveyors 48 and 48 is different, the left and right first aligned transport conveyors 37 and 37 can move the second left and right aligned lines. When handing over the carrots to the transport conveyors 48, 48, the distance between the carrots can be increased.

  In addition, since the central conveyance belts 49 and 49 close the gaps between the left and right first alignment conveyance conveyors 37 and 37 and the left and right second alignment conveyance conveyors 48 and 48, a carrot of a very small size such as a thin ginseng at a tip portion or a growth failure is generated. It is possible to prevent clogging, and it becomes unnecessary for the operator to remove the carrot that has been manually clogged, so that the work can be automated and the alignment and transportation of the carrot can be prevented from stagnation, so that the work efficiency is improved.

  In addition, the conveyance speed V1 of the first alignment conveyance conveyor 37 is 0.2 to 0.3 m / S, and the conveyance speed V2 of the second alignment conveyance conveyor 48 is 0.4 to 0.5 m / S, that is, the second alignment conveyance conveyor. When the conveyance speed V2 of 48 is set to about twice the conveyance speed V1 of the first alignment conveyance conveyor 37, when carrots are handed over from the left and right first alignment conveyance conveyors 37, 37 to the left and right second alignment conveyance conveyors 48, 48. Since the gap between the carrots can be increased, the sorting accuracy is further improved.

  Further, by attaching flanges 45, 45 having a diameter larger than that of the left and right second drive pulleys 43, 43 on both the inner and outer sides of the left and right second drive pulleys 43, 43, the left and right first aligned transport conveyors 37, 37 and the second Since the difference in height between the transfer parts of the alignment conveyors 48 and 48 is reduced, the carrot can be transferred smoothly and the work efficiency is improved.

  If the difference in height between the left and right first aligned transport conveyors 37 and 37 and the left and right second aligned transport conveyors 48 and 48 is set to about 10 to 15 mm, the posture of the carrot is less likely to be shaken at the time of handover. Since the carrots are smoothly transferred to the left and right second aligned transfer conveyors 48, 48, the work efficiency is further improved.

  The transport speeds of the left and right first aligned transport conveyors 37 and 37, the left and right second aligned transport conveyors 48 and 48, and the scooping transport conveyor 16 are controlled by an operating device (not shown) provided in the scooping transport section B.

  Further, by providing the first guide plates 51, 51 at the front end portions of the left and right openings 26, 26, the carrots transferred from the left and right first aligned transport conveyors 37, 37 to the left and right second aligned transport conveyors 48, 48 are conveyed. Even if the posture is disturbed or a plurality of carrots are piled up and taken over, the first guide plates 51 and 51 adjust the transport posture of one carrot, and the overlapped excess carrots 26 and 26 are overlapped. Therefore, it is possible to prevent all the carrots from falling during the takeover and prevent the gap between the carrots that have been aligned and transported and the carrots that are being aligned and transported from being opened too much, thereby improving work efficiency.

  In addition, by providing the left and right second guide plates 52, 52 at the rear end portions of the left and right openings 26, 26, the posture of the carrots may be disturbed while being transported by the left and right second aligned transport conveyors 48, 48. In addition, since the conveyance posture is corrected by the second guide plates 52 and 52, all the carrots fall from the left and right openings 26 and 26 before being discharged from the alignment conveyor 50, and are aligned and conveyed with the carrots that have been aligned and conveyed. Since it is prevented that the space | gap with the inside carrot is opened too much, work efficiency improves.

  Since the second interval 52a formed between the lower end portions of the second guide plates 52 and 52 on the lower conveyance side is set larger than the first interval 51a of the first guide plates 51 and 51, the conveyance posture of the carrots is changed to the left and right. Even if the second alignment transport conveyors 48 and 48 are oriented laterally with respect to the transport direction, the left and right second guide plates 52 and 52 follow the transport direction of the left and right second alignment transport conveyors 48 and 48. Since it can be corrected to the right posture, it is prevented that one carrot placed on the second left and right second aligned conveyors 48, 48 is dropped, and the number of carrots returning to the hopper 2 is reduced, so that the work efficiency is improved. To do.

  Furthermore, by providing the left and right feedback shooters 54, 54 outside the left and right openings 26, 26, the carrots that have fallen from the left and right openings 26, 26 automatically flow down to the hopper 2, so that the operator can remove the carrots from the hopper. There is no need to return to 2 and work efficiency is improved.

The storage unit A, the draw-up conveyance unit B, and the alignment conveyance unit C constitute a transfer device D that conveys carrots backward.
Next, the sorting and conveying unit E will be described.

  A sorting frame 55 is disposed behind the aligning and conveying section C, and a drive motor 56 having an output sprocket 57 mounted on the output shaft is provided at the lower rear side of the sorting frame 55 and on the left and right sides. A motor cover 58 is provided. An input sprocket 59 is attached to the left and right ends of the countershaft 60 having a length over the left and right width of the sorting frame 55 above the drive motor 56, and the input sprocket 59 and the output sprocket 57 are connected to the input sprocket 59 and the output sprocket 57. 1 The transmission chain 61 is wound endlessly.

  In addition, left and right second output sprockets 62 and 62 are pivotally attached to the counter shaft 60, and left and right drive rotation shafts 63 and 63 are provided above the second output sprockets 62 and 62, and the drive rotation shafts 63 and 63 are provided. The left and right second input sprockets 64, 64 are rotatably mounted. Further, the second transmission chain 65, 65 is wound around the second input sprockets 64, 64 and the second output sprockets 62, 62 to form a transmission path of the sorting and conveying unit E.

  Then, left and right drive rollers 66, 66 having V-shaped grooves formed on the circumference are provided at the ends of the drive rotating shafts 63, 63, and the selection frame is substantially at the same vertical position as the drive rollers 66, 66. The left and right driven rollers 67 and 67 having V-shaped grooves formed on the circumference are provided rotatably on the front side of the machine body 55. Further, the left and right conveying belts 68, 68 provided with protrusions 68a that enter the V-shaped groove on the back surface of the driving rollers 66, 66 and the driven rollers 67, 67 are wound endlessly. .

  Further, as shown in FIGS. 10, 12 (a), 12 (b), 14, and 15, the left and right sides of the body are separated from the sorting frame 55 on the non-conveying action side (the lower side of the winding area) of the conveying belts 68 and 68. Left and right shafts 97 and 97 are respectively arranged toward the center in the direction, and a plurality of divided rollers 98... Having a large diameter portion 99 formed on the shafts 97 and 97 are axially attached. Further, by providing left and right cushion rollers 100, 100 for preventing the divided roller 98 from moving in the left-right direction on the left and right outer sides of the divided rollers 98, 98 located at both left and right outer ends, the conveying belts 68, 68 are provided. The tension rollers 69 and 69 are configured to be rotatable so as to prevent the belts 68 and 68 from slacking downward without diffusing water adhering to the belt.

  The large-diameter portion 99 formed on the split roller 98 is configured to have a diameter larger than the diameter of the split roller 98 body, shorter than the left and right width of the split roller 98, and on either the left or right side of the split roller 98. It is configured at the end.

Thus, left and right transport conveyors 70 and 70 are configured to transport the crop from the front side of the machine body to the rear side.
The driving rollers 66 and 66 and the driven rollers 67 and 67 are disposed in the winding regions of the outer end portions of the conveyor belts 68 and 68, respectively. Therefore, when a heavy object is placed on the conveyor belts 68 and 68, the conveyor belt. 68 and 68 can flex flexibly according to the weight.

  In the conventional configuration in which a tension roller that is in contact with the shaft over the same range as the left and right width of the conveyor belt is attached, water adhering to the conveyor belt diffuses due to capillary action, and water moves to the back side of the conveyor belt. Therefore, when the conveyor belt comes into contact with the driven roller, the conveyor belt slips, and the transport posture of the carrot is disturbed, or the transport belt is not pushed down by the weight of the carrot at the weight detection position, and the sorting accuracy is lowered. There was a thing.

  However, in this embodiment, the contact area between the tension roller 69 and the conveyor belt 68 is reduced by making the left and right width of the large diameter portion 99 formed on the split roller 98 shorter than the left and right width of the main body of the split roller 98. Since water is prevented from diffusing due to capillary action, it can prevent the transport belt 68 from slipping and disturbing the transport posture of the carrot, and it can prevent the weight of the carrot from being detected at the weight detection position. Therefore, the carrot sorting accuracy is improved.

  Further, the left and right cushion rollers 100, 100 that prevent the split roller 98 from moving in the left-right direction are provided on the left and right outer sides of the split rollers 98, 98 located at the left and right outer ends, thereby making contact with the transport belt 68. Since the split rollers 98, 98 can be prevented from moving in the left-right direction at this time, the split rollers 98, 98 are prevented from moving water to the back side of the transport belt 68, and the transport belt 68 slips. Can be prevented.

  Also, instead of the tension rollers 69 shown in FIGS. 10, 12 (a), 12 (b), 14 and 15, as shown in FIG. 17, the left and right shafts 97, 97 have a plurality of recesses 103, A plurality of convex portions 104 having a diameter larger than that of the concave portion 103 and having a short left and right width are formed. The rollers 69 may be configured.

  In the above configuration, since the left and right width of the uneven roller 105 is substantially the same as the left and right width of the conveying belt 68, the uneven roller 105 can move freely in the left and right direction without the left and right cushion rollers 100, 100. Therefore, it is possible to prevent water from moving to the back side of the conveyor belt 68 and to prevent the conveyor belt 68 from slipping.

  In addition, since the concave portions 103 and the convex portions 104 are integrally formed, the concave and convex roller 105 can be easily attached and detached during maintenance or replacement of parts, so that maintenance is improved.

Furthermore, the following tension rollers 69 shown in FIGS. 18A and 18B may be used.
A plurality of grooved portions 106a... Formed on the shafts 97 and 97 at substantially equal intervals are rotatably mounted with grooved rollers 106 having substantially the same left and right length as the left and right width of the conveyor belt 68, and the grooves 106a. An annular member 107 such as an O-ring having a larger diameter than the attached roller 106 is provided to constitute a tension roller 69.

  In the above configuration, since the left and right width of the grooved roller 106 is substantially the same as the left and right width of the conveying belt 68, the grooved roller 106 moves freely in the left and right direction even without the left and right cushion rollers 100, 100. Therefore, it is possible to prevent water from being moved to the back side of the conveyor belt 68 and to prevent the conveyor belt 68 from slipping.

  In addition, since the annular members 107 are provided in the groove portions 106a of the grooved roller 106, the plurality of annular members 107 are in contact with the conveying belt 68, so that the grooved roller 106 is not easily damaged and has improved durability. In addition, since the annular member 107 can be easily detached from the groove 106a of the grooved roller 106, the maintainability is improved.

In the case of using any of the large diameter portion 99, the convex portion 104, and the annular member 107 that are in contact with the conveyance belt 68, the left and right width of the portion that is in contact with the conveyance belt 68 is set to 2 to 3 mm.
If it is less than 2 mm, the contact area with the transport belt 68 becomes too small, the pressure applied at the time of contact becomes too high, and the transport belt 68 may be worn and damaged early. If it is 3 mm or more, the contact area becomes large. This may cause the water to diffuse due to the capillary phenomenon and enter the back side of the sorting belt 68.

Further, the left and right widths of the split roller 98 and the recess 103 and the left and right intervals of the annular members 107 and 107 are set to 25 to 30 mm.
If it is less than 25 mm, the number of members increases too much, the number of man-hours for replacement work increases, the maintainability decreases, and the part cost increases. On the other hand, if the thickness is 30 mm or more, the conveying belt 68 may hang down and come into contact with the dividing roller 98, the recess 103, and the grooved roller 106, and water may be diffused and adhered to the back side of the conveying belt 68.

  As shown in FIGS. 7 to 9 and FIGS. 11 (a), 11 (b) and 11 (c), the transfer device D is positioned above the transfer start ends of the left and right transfer conveyors 70 and 70 and above the sorting frame 55. The side-mounted L-shaped mounting frames 72, 72 having left and right handing shooters 71, 71 in a downward descending posture are moved to the conveyors 70, 70 in response to the carrots discharged from the side to the sorting frame 55 with bolts and nuts. Provide detachable.

  As shown in FIGS. 11 (a), 11 (b), and 11 (c), the takeover shooters 71, 71 have the same length in the left-right direction central portion as the length of about one 2S size carrot (about 60-80 mm). It is formed in a short length, and the front and rear widths are increased toward the left and right ends, and the length that can support about 40% to 60% of the total length of 3L carrots at the left and right ends (about 100 ˜150 mm). Accordingly, the rear side of the takeover shooters 71 and 71 is formed in a V shape (C shape) in plan view. Further, a coating layer 71a is formed of a resin material on the contact surface (front surface) of the takeover shooters 71, 71 with a carrot, and the rear end of the coating layer 71a is rearward about 5 mm behind the rear end of the takeover shooter 71. To extend.

  9 to 11 (a), 11 (b), and 11 (c), the transfer belts 68, 68 are disposed on the lower rear side of the takeover shooters 71, 71 and within the winding area of the transfer belts 68, 68. Left and right front slider plates 72, 72 are provided to prevent looseness and promote movement. The upper slider plates 72, 72 are jumped from the transfer shooter 71, 71 or the end of the transfer device D to the conveyor belts 68, 68. Cushion plates 73, 73 that prevent the carrot from bouncing due to the impact of falling are attached. The front slider plates 72 and 72 are coated with a slippery resin material, and the cushion plates 73 and 73 are made of an elastic body such as rubber or a soft material such as a gel cushion.

  Further, as shown in FIGS. 9 and 10, left and right rear slider plates 74, 74 are provided in the winding area on the rear end side of the body of the conveyor belts 68, 68, and the front and rear sides of the rear slider plates 74, 74 are provided. The bent portions 74a and 74a are formed by bending the end portions in the downward inclined direction. Further, between the front slider plates 72, 72 and the rear slider plates 74, 74, a plurality of weight detection devices 75, 75,. A plurality of sorting slider plates 76, 76, which prevent the slack of the belts 68, 68 and promote their movement, are alternately arranged.

  As shown in FIGS. 9, 11 (a), 11 (b), and 11 (c), a front bent portion 76 a that inclines toward the front lower side is formed on the front side of the machine body of the sorting slider plate 76. A rear bent portion 76b is formed by bending downward substantially at a right angle so that the bent surface has an R shape. The base side of the front support arm 77a is provided at the front bent portion 76a, the base side of the rear support arm 77b is provided at the rear bent portion 76b, and the end sides of the front support arm 77a and the rear support arm 77b are provided. Are attached to the sorting frame 55, and a plurality of sorting slider plates 76 are fixed.

If the front bent portion 76a is bent so as to have an R shape, the conveying belt 68 is less likely to be caught on the sorting slider plate 76, so that the efficiency of sorting and conveying is improved.
As shown in FIGS. 10 and 14, left and right ribs for promoting the movement of the conveyor belt 68 are provided on the left and right upper portions of the front slider plate 72, the rear slider plate 74, and the plurality of sorting slider plates 76 between the front and rear. 82 and 82 (projections) may be pasted in the front-rear direction.

  When the ribs 82 and 82 are formed in a saw blade shape in which the convex portion and the concave portion are continuous, the contact density with the conveying belt 68 is reduced, and the conveying belt 68 can be moved more smoothly and conveyed. Even if water adhering to the belt 68 enters, it is difficult to slip, so that work efficiency is improved.

  As shown in FIGS. 13 and 14, the weight detection device 75 includes a link arm 77 that is disposed in the winding area of the conveyor belts 68 and 68 and that is rotatable up and down, an upper side of the link arm 77, and the fuselage. A weight detection plate 78 through which the carrots being conveyed by the conveyors 70, 70 provided at the inner ends pass, and a detection sensor 79 that emits a signal for operating a later-described popping device 84 when the weight detection plate 78 rotates a predetermined distance or more. And an adjustment plate 80 for adjusting the weight of the carrot determined by the weight detection device 75 by inserting a weight 80a on the inner side provided at the outer end of the link arm 77, and a balance weight 81 for adjusting the fine detection weight. Constitute.

As shown in FIG. 12 (b), the body inner end of the weight detection plate 78 is bent downward at a right angle to form a right angle portion 78a.
In the present embodiment, five weight detection devices 75 corresponding to the grades of 3L, 2L, L, M, and S are provided so that carrots can be sorted into five grades. The grade to be detected can be easily changed by increasing / decreasing the number of weights 81a to be placed in the adjusting plate 80. If the weight to be detected is set to be heavier on the front side of the body and lighter on the rear side of the body, all the weight detection devices 75 need only set the lower limit value for starting detection, and the setting of the detected weight becomes easy.

  As shown in FIGS. 7 to 10, a plurality of sorting slider plates 76, 76 on the left and right outer sides of the sorting frame 55 and on the rear side of the fuselage from substantially the center in the front-rear direction of the left and right weight detection plates 78, 78. The left and right jumping devices 84 and 84 are disposed over substantially the central portion in the front-rear direction and hit the carrots being transported by the transport belts 68 from the side and send them to the collection shooter 93 described later. Further, left and right intermediate plates 85, 85... For preventing the carrot from moving to the outside of the machine body are provided between the front and rear of the jumping devices 84, 84, respectively, and the weight detection of the front row is performed from the front end of the sorting frame 55. The left and right front side walls 86, 86 are fixedly provided over the front end portions of the devices 75, 75, and the left and right portions extend from the rear end portions of the weight detection devices 75, 75 in the last row to the rear end portions of the sorting frame 55. The rear side walls 87, 87 are fixedly provided.

  As shown in FIGS. 13 and 14, the jumping device 84 includes a jumping plate 88 that can rotate in the left-right direction of the machine body, a solenoid 89 that operates when receiving a signal from the detection sensor 79, and when the solenoid 89 operates. The ejecting plate 88 is constituted by an extrusion arm 90 that pushes the jumping plate 88 from the outside of the machine body onto the transport path of the transport conveyor 70. By attaching an elastic body such as rubber to the striking action surface of the jumping plate 88, carrots are prevented from being damaged by the impact of the striking.

  10 and 14, the plurality of intermediate plates 85 are arranged such that the front end portion is positioned on the outer side of the machine body from the rear end portion. The front end portion of the intermediate plate 85 is fixed to the sorting frame 55 with a fixing member such as a bolt, and when the fixing member is removed, the intermediate plate 85 is configured to be rotatable about the rear end side as a rotation center. The rotatable range may be approximately 30 degrees from the substantially linear position in the front-rear direction (0 degrees).

  Further, as shown in FIGS. 8 and 10, between the left and right of the left and right transport conveyors 70, 70 and from the front end portion of the sorting frame 55 to the substantially central portion in the front-rear direction of the weight detection devices 75, 75 in the front row. A mountain-shaped separation plate 91 is provided in a front view or a rear view, and a plurality of collection shooters 93 are moved in the front-rear direction to drop ginseng for each size on the rear side of the separation plate 91 and move it to a storage container 92 such as a container. A connecting handle 94 that connects the plurality of recovery shooters 93... And can be lifted by the operator by hand is disposed above and behind the recovery shooters 93. And the guide curtain 95 which receives the carrot sent out from the conveyance conveyor 70 of the right-and-left side from the lower part of this connection handle 94 by the jumping apparatus 84 to the inner side of the collection | recovery shooter 93, and drops below is attached.

If the guide curtain 95 is made of a soft member such as rubber or vinyl chloride, it is difficult to be damaged even if it hits the carrot, and the commercial value of the carrot is maintained.
7, 8, 9, 10, 19 (a) and 19 (b) and 20 (a), (b), and (c), the conveyance end points of the left and right conveyance conveyors 70 and 70 are shown. Left and right mounting tables 96 for mounting a container 92 such as a box-shaped container or bag body for collecting non-standard carrots that are not selected because they are too large (4L or more) or too small (2S or less). 96 are arranged so as to be rotatable in the longitudinal direction of the body. Then, support brackets 108 and 108 having a “h” shape in a side view are attached between the conveyors 70 and 70 and the mounting tables 96 and 96 and on the rear end portion side of the machine body of the sorting frame 55, and are attached to the rear of the machine body. The scraper plates 109 and 109 for scraping water and foreign matters by the front end contacting the left and right conveying belts 68 and 68 on the upper portions of the support brackets 108 and 108 inclined downward are mounted on the mounting tables 96 and 96, respectively. It is attached to the storage containers 92 and 92 placed in a rearward downward inclination posture. Thereby, the sorting and conveying unit E is configured.

  The front end of the scraper plates 109, 109, that is, the end in contact with the sorting belt 68 has a blade shape on both the front and back surfaces, so that one side is worn and sufficient water and impurities are scraped off. If the scraper plates 109 and 109 are turned over, the blade surface that is hardly worn comes into contact with the conveying belts 68 and 68 when the scraper plates 109 and 109 are turned over. Therefore, the scraper plates 109 and 109 can be used until the opposite surface is completely worn out. This improves durability.

  In addition, scraper plates 109 and 109 that are inclined downward toward the rear of the machine body are provided behind the transfer terminal portions of the sorting conveyors 70 and 70, and the upper portions of the scraper plates 109 and 109 are flat and have a carrot of 3S or less upward. Carrots that are not subject to sorting (minimum carrots of 2S or less) discharged from the sorting conveyors 70 and 70 are formed by allowing them to pass through, for example, plate-shaped guides 109b and 109b having a slat-shaped guide with a left-right spacing of less than 10 mm. Since it can be set as the shooter which guides to the storage containers 92 and 92 mounted in the mounting bases 96 and 96, ginseng can be reliably discharged | emitted out of an apparatus and work efficiency improves.

  When the scraper plates 109 and 109 are made of a synthetic resin such as polyethylene generally used for food candy or candy letters, they can have appropriate elasticity and harmful components may adhere to carrots. Therefore, the safety of carrots is ensured.

  As shown in FIGS. 20A, 20B, and 20C, the scraper plates 109 and 109 are formed with long holes 109a and 109a that are long in the front-rear direction at equal intervals in the left-right direction, and are inclined downward. Screw holes 108a and 108a with screw grooves are formed in the upper portions of the support brackets 108 and 108 at the same left and right intervals as the long holes 109a and 109a.

  If the left and right intervals of the long holes 109a, 109a are the same as or slightly longer than the long side of the carrot of 2S or less, even if the scraper plates 109, 109 are attached to the support brackets 108, 108 with fixing members such as bolts and nuts, Since the carrot is prevented from coming into contact with the fixing member and being damaged, it is possible to prevent the carrot from being scraped by the impact of the contact and deteriorating the commercial value.

  In addition, carrots that are too small in size 2S or less, carrots that are too large in size 4L or more, malformations such as bifurcating or extreme bending, and carrots that are broken at the time of harvest are generally shipped for processing to be used as materials for juices, frozen foods, etc. Therefore, even if there are some scratches, the product value will not decrease, but if the weight decreases, such as the body being shaved, the value will decrease accordingly, so it is appropriate to prevent damage due to contact with the fixing member etc. it makes sense.

  In order to realize the above significance, the upper end portion of the fixing member such as a bolt and nut for fixing the scraper plates 109 and 109 to the support brackets 108 and 108 does not protrude from the upper end portions of the scraper plates 109 and 109 (not shown) ), Large carrots of 4L or more are less likely to be damaged.

  Further, in order to attach the support brackets 108 and 108 to the sorting frame 55, screw holes 108a for attaching fixing members such as bolts are formed inside the body of the support brackets 108 and 108, and the left and right sides of the support brackets 108 and 108 are formed outside the body. An arc-shaped long hole 108b that allows the inclination angle of the direction to be changed is formed.

  In the case of the above configuration, assuming that the upper end position of the long hole 108b is substantially horizontal with the position where the round hole 108a is formed, the inclined posture of the support brackets 108 and 108 in the left-right direction is from the horizontal state with respect to the transport conveyor 70. The adjustment can be made within a range until the conveyor conveyor 70 is inclined downward in the outer direction of the machine body, and the rotation to an unnecessary range can be restricted.

  On the other hand, when the round hole 108a is formed on the outer side of the machine body and the long hole 108b is formed on the inner side of the machine body, the lower end position of the long hole 108b is set substantially horizontal to the position where the round hole 108a is formed. 108 and 108 can be adjusted in a horizontal inclination direction from the horizontal state with respect to the conveyer 70 to a downward inclined position with respect to the conveyer 70 toward the outside of the machine body. The rotation can be restricted.

With the above configuration, the left and right transport conveyors 70 can be driven by the single drive motor 56, so that the number of parts is reduced, thereby reducing costs and saving resources.
Further, since the transfer speeds of the left and right transfer conveyors 70 and 70 are substantially the same, the efficiency of the left and right sorting operations can be made substantially the same, and the carrots are sequentially sorted by the left and right transfer conveyors 70 and 70. Efficiency is improved.

  Since the front and rear width of the central portion of the takeover shooter 71 is made the shortest, a small carrot of 2S size or less is dropped and moved to the transfer conveyor 70 before staying on the takeover shooter 71. Since the above ginseng merges, it is possible to prevent two or more ginsengs from simultaneously detecting the weight by the weight detection device 75, so the weight detection device 75 misidentifies two small carrots as one large carrot. The jumping device 84 is not operated, and the carrot sorting accuracy is improved.

  Furthermore, by making the length of the left and right sides of the takeover shooter 71 long enough to support a 3L size carrot, large ginseng protrudes from the takeover shooter 71 in the left-right direction and falls outside the machine without moving to the conveyor 70. Therefore, it is possible to prevent the carrot from being damaged by the impact of the drop, maintain the product value of the carrot, omit the work of picking up the carrot that has been dropped, and reduce the labor of the worker.

  Further, the coating layer 71a is formed of a resin material on the working surface of the takeover shooter 71, and the rear end of the coating layer 71a protrudes rearward from the rear end of the takeover shooter 71. Since it is possible to prevent the carrot from coming into contact with the sharp edge of the part, the carrot is prevented from being damaged, and the product value of the carrot is improved.

As a result, the takeover shooter 71 can be made of a sturdy material such as a metal plate, so that the takeover shooter 71 can be easily attached and the durability is improved.
Then, by providing the cushion plate 73 on the front slide plate 72 provided below the takeover shooter 71 and in the winding area of the conveyor belts 68 and 68, the carrot taken over from the transfer device D falls onto the sorting conveyor 70. Since the cushion plate 73 absorbs the impact, the carrot is prevented from being damaged by the impact of the drop, and the commercial value of the carrot is improved.

  Furthermore, when the cushion plate 73 absorbs the impact of carrot falling, the carrot bounces and jumps on the weight detection device 75, and the weight detection device 75 is erroneously detected by the impact of the fall and the jump device 84 is operated. This can improve the accuracy of carrot sorting.

  The cushion plates 73, 73 are arranged from the front end portions of the front slider plates 72, 72 to a substantially central position in the front-rear direction, and are not provided on the rear end side close to the weight sorting device 75, thereby providing a 3L size. Thus, it is possible to prevent a part of such a long and heavy carrot from being detected while the weight remains on the cushion plate 73, and the sorting accuracy is improved.

  Further, the weight detection is performed by forming the bent portion 74a and the front bent portion 76a that are inclined downward toward the adjacent weight detection device 75 on the front side of the rear slider plate 74 and the front side of the plurality of sorting slider plates 76. When the carrot passes through the weight detection plate 78 of the apparatus 75 while being lowered, the conveyor belt 68 on which the carrot is placed moves along the bent portion 74a and the front bent portion 76a from the rear end portion of the lowered weight detection plate 78. Therefore, it is possible to prevent the conveyance belt 68 from being caught on the front end portions of the rear slider plate 74 and the sorting slider plate 76, thereby preventing the rotation drive from being disturbed, stabilizing the carrot conveyance pace, and improving the sorting accuracy. .

  Furthermore, since the carrots are prevented from falling from the conveyor belt 68, the carrots are prevented from being damaged by the impact of the drop, the product value of the carrots is improved, and it is not necessary to collect the carrots that have been dropped. The labor of the person is reduced.

  In the conventional configuration, since the rear end portion of the weight detection plate and the front end portion of the slider plate are arranged substantially linearly, when the weight detection plate is pushed down by the weight of carrot, the conveyor belt is moved to the front end portion of the slider plate. Or may be sandwiched between the weight detection plate and the slider plate, and there is a problem that the transport speed of the transport conveyor is disturbed or stopped.

  When the rear slider 76b is formed with the rear bent portion 76b having a curved surface on the rear side of the machine body, the carrot is placed on the weight detecting plate 78 and moved from the selected slider plate 76. Therefore, the conveyance belt 68 does not fluctuate, the carrot conveyance pace is stabilized, and the sorting accuracy is improved.

  The front-rear length of the front bent portion 76a may be changed according to the detected weight of the weight detecting device 75 provided on the front side of the sorting slider plate 76. When the weight detected by the weight detection device 75 is heavier, the length of the front bent portion 76a is lengthened, and when the weight to be detected is lighter, the length is shortened. When the weight detection plate 78 of the weight detection device 75 moves up and down, it is pushed up. Since only the end of the carrot inclined downward in the front side can be prevented, it is possible to prevent the carrot from jumping to the next weight detection device 75, and the weight detection device 75 is erroneously detected by the impact of the carrot falling. Therefore, the sorting accuracy is improved.

  As an example, the rear side of the 3L size weight detection device 75 is about 30 to 40 mm, the 2L size is about 25 to 35 mm, the L size is about 20 to 30 mm, and the M size is about 10 to 20 mm. . In the S size portion, the front bent portion 76a is not bent, but in the present embodiment, since the S size is the last weight detection position, such a configuration is adopted in order to prevent erroneous detection. When selecting smaller ginsengs such as 2S and 3S, the front-side bent portion 76a is also formed in the S-sized portion in order to prevent erroneous detection due to ginseng jumps.

  The above-mentioned length is wide because there are various types of carrots, such as those that are long and small in the front and back, those that are short and large in the front and back, those that have a high density of pulp, etc. It is to make it.

  In addition, since the weight 80a can be taken in and out of the adjustment plate 80 and the weight detected by the weight detection device 75 can be changed, it is possible to improve the accuracy of carrot selection even if there are differences in the selection conditions such as carrot varieties and growth conditions. It is done.

  In addition, the balance weight 81 can be adjusted to finely adjust the detected weight, preventing the occurrence of carrots that do not jump out due to a slight difference in weight, improving the sorting accuracy and manually sorting the carrots. There is no need to rework, and the labor of the operator is reduced.

  Further, since the inner side of the body of the weight detection plate 78 is bent downward at a right angle and the bent portion 78a is formed, the conveyor belt 68 is less likely to tilt toward the collection shooter 93, so that the carrot is hit by the jumping device 84. Therefore, it is possible to prevent the transfer from the transfer conveyor 70 to the collection shooter 93, so that the sorting accuracy is improved and the operator does not have to re-sort, thereby reducing the labor of the worker.

  In addition, when the left and right transport conveyors 70, 70 are inclined upward by about 0.5 to 1 degree from the outside of the machine body to the inside, the carrots can move toward the outside of the machine body of the transport conveyors 70, 70. It is possible to prevent the carrot from being moved from the transport conveyor 70 to the collection shooter 93 without being hit by the jumping device 84, improving the sorting accuracy, and eliminating the need for the operator to re-sort, and the labor of the worker Is reduced.

  Since the front end of the intermediate plate 85 is located on the outer side of the machine body from the rear end of the jumping plate 88, when the carrot contacts the rear end of the jumping plate 88, the front end of the intermediate plate 85 ... It is possible to prevent the next ginseng from being caught and the weight detection device 75 from mistakenly identifying two as one ginseng, thereby improving the accuracy of ginseng sorting.

  Further, even if the intermediate plate 85 is not caught at the front end, it can be prevented from being rebounded by the impact of the collision and placed on the weight detection device 75 together with a strong impact, causing the weight detection device 75 to malfunction. Will improve.

In addition, it is good also as a structure which arrange | positions the rotating shaft 88a of the jumping board 88 in the outer side of the body rather than the jumping board 88, and the front side of the body of the jumping board 88 is located on the outer side of the body.
With the above configuration, the jump plate 88 and the intermediate plate 85 are arranged in a saw blade shape in a plan view, and a space portion is generated between the rear end portion of the jump plate 88 and the front end portion of the intermediate plate 85. Further, the carrots are less likely to come into contact with the tip side of the intermediate plate 85, and the weight detection device 75 can reliably detect the weight of the carrots one by one, and the sorting accuracy is further improved.

  Further, by providing the same number of collection shooters 93 as the weight detecting device 75 and the jumping device 84 between the left and right of the left and right sorting conveyors 70, the carrot of the weight detected by the weight detecting device 75 is handled by the jumping device 84. It can be sent to the grade collection shooters 93...

  Then, by connecting the collection shooters 93 from above with the connection handle 94, the operator can remove the plurality of collection shooters 93 at the same time, so that a space for maintenance work is easily secured.

  Further, by providing a guide curtain 95 that receives the ginseng that has been struck and sent out by the jumping device 84 at the lower part of the connecting handle 94 and guides the carrot to the lower recovery shooter 93. It is possible to prevent the carrots from traveling to the next row conveyor 70 and riding the same car in two places, or causing the weight detection device 75 in the next row to malfunction due to the impact of dropping. Accuracy is improved.

Further, since it is possible to prevent the carrots being transported from being hit by the transport conveyor 70 in the adjacent row, the carrots are prevented from being damaged by the impact of the collision, and the product value of the carrots is maintained.
The left and right placing tables 95 and 95 for placing the storage containers 92 for collecting non-standard carrots are provided at the conveying end portions of the left and right conveying conveyors 70 and 70, so that it is difficult to set sorting conditions. Since the carrot can be collected just by transporting it, the efficiency of the sorting work is improved.

  Further, since the mounting tables 95 and 95 are provided so as to be rotatable in the front-rear direction, when the sorting and conveying unit E is stored, the mounting tables 95 and 95 can be brought close to the machine body to shorten the front-rear width. Even if the space is small, it can be easily stored.

  Further, since the elongated holes 109a and 109a are formed in the scraper plates 109 and 109, the position where the scraper plates 109 and 109 are attached to the support brackets 108 and 108 can be adjusted in the front-rear direction. When there is a large amount of water, when the front end of the scraper plates 109 and 109 and the conveyor belts 68 and 68 are brought close to each other, water and contaminants are removed by the scraper plate 109, so that water and contaminants enter the back side of the conveyor belt 68 and slip. It is prevented. As a result, the conveyor belt 68 does not bend at the weight detection position, and the carrot is erroneously sorted in a lower grade, or the conveyor belt 68 stops and moves to a collection shooter 93 of a different grade. This can prevent the carrot sorting accuracy.

  On the other hand, when there is little water and impurities on the conveyor belt 68, the front end of the scraper plates 109 and 109 and the conveyor belts 68 and 68 are slightly separated to reduce the contact amount, which is unnecessary for the sorting belts 68 and 68. Since the friction can be prevented, the sorting belts 68 and 68 are prevented from being damaged by the friction, and the durability is improved.

  Further, long holes 108b and 108b for mounting are formed inside or outside the body of the support brackets 108 and 108, and the support brackets 108 and 108 are horizontally mounted with the round holes 108a and 108a serving as pivot points. Since the posture can be changed from the posture to the downward inclined posture toward the outer side of the machine body, the scraper plates 109 and 109 can discharge the water and impurities scraped from the conveyor belts 68 and 68 to the outer side of the machine body. Water and other contaminants are prevented from entering the back side of the belts 68 and 68, the conveyor belt 68 is not bent at the weight detection position, and the carrot is selected by a lower grade, or the reaction that the conveyor belt 68 stops. Thus, the carrot does not move to the collection shooter 93 of a different grade, and the carrot sorting accuracy is improved.

  In addition, if the downward inclination angle of the scraper plates 109 and 109 to the rear of the machine body is set within a range of 45 to 60 degrees with respect to the front end of the machine body, the scraper plates 109 and 109 are not easily caught in the rotation of the conveyor belts 68 and 68. Therefore, the scraper plates 109 and 109 are not bent or bent during work, and the durability of the scraper plates 109 and 109 is improved.

Further, since it is not necessary to replace or reassemble the scraper plates 109, 109 that are damaged or detached during the work, the work efficiency is improved.
Further, when the angle at which the support brackets 108 and 108 are inclined downward toward the outer side of the machine body is set in a range of 2 to 5 degrees, the scraper plates 109 and 109 are used to store the carrots discharged from the sorting conveyors 70 and 70 into the storage containers 92 and 92. The water and impurities scraped off from the conveyor belts 68 and 68 can be moved to the outside of the machine body and discharged without impairing the function as a shooter that feeds to 92.

  As shown in FIG. 21, the surface of the weight detection plate 78 constituting the weight detection device 75 is inclined from the upper side in the transport direction of the transport conveyor 70 toward the lower side in the transport direction toward the collection shooter 93 on the side portion. The draining grooves 110 are formed at predetermined intervals. The inclination angle θ2 of the draining groove 110 with respect to the conveying direction is substantially the same as the maximum jumping angle θ1 of the jumping plate 88, and the center portion of the weight detection plate 78 is pivotally supported on the sorting frame 55 by the pivot shaft 119. By loosening the fixing knob bolt 122 provided on the mounting angle adjusting unit 120, the entire weight detecting plate 78 can be rotated horizontally to make the inclination angle θ2 larger or smaller than the maximum jumping angle θ1 of the jumping plate 88. I am doing so. When the inclination angle θ2 of the draining groove 110 is made larger than the maximum jump angle θ1 of the jumping plate 88, the draining is improved. The conveyance resistance of the conveyance belt 68 is reduced.

  As described above, since the groove direction of the draining groove 110 is inclined with respect to the moving direction of the transport belt 68, the feeding action with respect to the water accumulated in the draining groove 110 acts strongly, and between the weight detection plate 78 and the transport belt 68. Is immediately sent to the recovery shooter 93.

  As shown in FIG. 25, the draining groove 110 of the weight detecting plate 78 is provided with a deep central draining groove 110c in the center in the left and right direction, and a left draining at an inclination angle θ2 of the draining groove 110 with respect to the central draining groove 110c. A groove 110b and a right draining groove 110a may be provided so that water from the left draining groove 110b flows into the central draining groove 110c. The groove width and depth of the central draining groove 110c are gradually increased in width and depth from the upper transport side to the lower transport side.

  Note that a sub collection shooter 121 inclined toward the collection shooter 93 is provided at the lower end of the central draining groove 110c, and a water sensor for detecting water flowing through the sub collection shooter 121 is provided.

  Further, as shown in FIG. 23, the draining groove 110 of the weight detecting plate 78 is inclined at an inclination angle θ2 from the left and right center toward the conveyance direction, and is provided with a left draining groove 110b and a right draining groove 110a. A water tank 123 may be provided at the lower left side of 78, and a drain pipe 124 passing from the water tank 123 to the recovery shooter 93 through the belt guide lower part may be provided to prevent the weight detection unit from getting wet. In addition, the left draining groove 110b and the right draining groove 110a are connected at the center so that water flows on either the left or right side.

  Further, as shown in FIG. 24, the draining groove 110 of the weight detecting plate 78 is provided with a deep central draining groove 110c in the left and right center in the conveyance direction, and the left draining groove 110b symmetrically with respect to the central draining groove 110c. The pattern which provides the right draining groove 110a may be sufficient. The central draining groove 110c is wider and deeper than the left draining groove 110b and the right draining groove 110a. In addition, by making the distance between the left draining groove 110b and the right draining groove 110a narrow on the upper conveyance side, water can be quickly guided to the recovery shooter 93 to reduce the water on the lower conveyance side of the weight detection plate 78.

  Further, as shown in FIG. 25, the draining groove 110 of the weight detecting plate 78 is configured such that the right half draining groove 110a on the right half on the collection shooter 93 side is inclined at an inclination angle θ2, and the left half draining groove 110b is orthogonal to the transport direction. By doing so, the draining effect is improved.

  Furthermore, as shown in FIG. 26, the right draining groove 110a may be configured to have a width of about 20 mm on the collection shooter 93 side to about the left and right half of the weight detection plate 78, and no draining grooves may be provided in other portions.

  With the above configuration, even when water enters the winding region of the conveyor belt 68, the water passes through the plurality of draining grooves 110 formed in the weight detection plate 78 and moves toward the recovery shooter 93. Therefore, the conveyance belt 68 is stuck to the weight detection plate 78 and can be prevented from moving, and the driving of the conveyance conveyor 70 can be prevented from being disturbed. Since it is possible to prevent the carrot from falling from the conveyor belt 68 and falling to the collection shooter 93 different from the collection shooter 93 that is originally selected, the carrot sorting accuracy is improved.

  Further, it is possible to prevent the weight detecting plate 78 from moving down and not operating the jumping plate 88 even if the conveyor belt 68 is stuck to the weight detecting plate 78 and a carrot to be sorted passes, and the weight detecting plate 78 is prevented from operating. Is pushed down by the conveyor belt and prevents the jumping plate 88 from operating when ginseng lighter than the original weight to be sorted passes, reducing ginseng sorting due to false detection and improving sorting accuracy. To do.

  Further, by forming the plurality of draining grooves 110 at predetermined intervals, the contact area between the conveyance belt 68 and the weight detection plate 78 is reduced regardless of the presence or absence of water, and the conveyance belt 68 passes over the weight detection plate 78. Since the frictional resistance applied at the time becomes weak, the rotation speed of the conveyor belt 68 is difficult to reduce, so that the carrot sorting operation efficiency is improved and the sorting accuracy is improved.

  Further, since water is supplied to the collection shooter 93, the carrots riding on the collection shooter 93 can easily slide downward, so that the carrots can be prevented from staying on the collection shooter 93, and the carrots can be separated from each other on the collection shooter 93. Is prevented from being damaged by contact, and the commercial value of the crop is improved.

  In addition, since water is supplied to the collected carrots, it is possible to prevent the carrots from drying out over time, so it is possible to prevent the carrots from drying too much and deteriorating the quality. Value is improved. The above effect is very effective when working for a long time in a well-ventilated place or a place with high temperature.

  Furthermore, it is not necessary for the operator to manually recover the carrot remaining in the recovery shooter 93, and the labor of the operator is reduced.

68 Conveying belt 78 Weight detection plate 88 Bounce plate 93 Recovery shooter 110 Drain groove 110a Right drain groove 110b Left drain groove 110c Central groove drain θ1 Maximum jump angle of jump plate θ2 Drain groove inclination angle of drain groove

Claims (6)

  A weight detection plate (78) is provided on the lower side of the conveyor belt (68) for conveying the crop, and the weight of the crop conveyed on the conveyor belt (68) is detected by the weight detection plate (78). In the continuous weight sorting apparatus for crops that jumps crops to a recovery shooter (93) with a jump plate (88), a draining groove (110) inclined with respect to the transport direction is formed on the entire upper surface or part of the upper surface of the transport belt (68). A continuous weight sorting device for crops, characterized by   The continuous weight of the crop according to claim 1, wherein the water drain groove inclination angle (θ2) with respect to the conveying direction of the water drain groove (110) is substantially the same as the maximum spring angle (θ1) of the jump plate (88). Sorting device.   A weight detecting plate (78) is provided so as to be horizontally rotatable, and the weight detecting plate (78) is appropriately fixed so that the draining groove inclination angle (θ2) of the draining groove (110) is maximized by the jumping plate (88). 3. The continuous weight sorting apparatus for crops according to claim 2, which can be adjusted to be larger or smaller with respect to the take-out angle (θ1).   The draining groove (110) provided in the weight detection plate (78) is provided continuously from at least the center of the width of the weight detection plate (78) toward the recovery shooter (93). Continuous weight sorter for crops.   A right draining groove (110a) and a left draining groove (110b) are provided from the center of the weight detection plate (78) toward the left and right sides, and a recovery shooter (93) is provided on the terminal end side of the right draining groove (110a). The continuous weight sorting apparatus for crops according to claim 1, wherein a water tank (123) connected to the recovery shooter (93) is provided at the end of the draining groove (110b).   A central draining groove (110c) is provided in the center of the weight detection plate (78) from the upper side to the lower side of the conveyance, and the right draining groove (110a) and the left draining groove (110b) are passed through the central draining groove (110c). 6. The continuous weight sorting apparatus for crops according to claim 5,

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