JP2541677Y2 - Conveyor of group seedling pretreatment machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a group in which group seedlings having strong roots such as adult rice seedlings or rush seedlings are treated so as to be easily planted before being planted in a field by a planting device. The present invention relates to a transport device for a seedling pretreatment machine.

[0002]

2. Description of the Related Art Conventionally, collective seedlings with strong roots, for example,
Since rush seedlings have strong roots and are difficult to divide, it is difficult to separate them using a device that unravels a root stock consisting of a conveyor having a large number of needle-like projections before planting. It is already known from 81125 and the like.

[0003]

[Problems to be Solved by the Invention] Collective seedlings such as rush seedlings or rice seedlings are difficult to divide because their roots are long and strongly entangled. The shoots, which are the growth points of the seedlings, were damaged, the growth after planting became poor, and the long roots became planting obstacles. However, conventionally, there was no appropriate means for solving such a problem. Therefore, when a variety of devices were developed for the means for cutting the roots and the experiment was repeated, the size and shape of the rootstock of the collective seedlings changed greatly, so it was difficult to supply the seedlings and retain the seedlings during root cutting. .

[0004]

According to the present invention, a root cutting cutter is disposed on a root stock side of a seedling holding and conveying path leading to a root stock unraveling device, and the root cutting cutter is disposed on the upper side in the transport direction of the root cutting cutter and on the tip side. The base sides of a pair of stock-holding / conveying belts that overlap with the cutting cutter are pivotally supported at a wider interval than the width of the seedling-holding / conveying passage and in a swingable manner so that the holding gap of the stock-holding / conveying belt is narrowed. The above-mentioned problem was solved by energizing with an ammunition.

[0005]

[Action] Collective seedlings with strong roots dug from the nursery,
When supplied to the pretreatment device, the root stock of the group seedlings is sandwiched between the widened starting ends of the stock-holding and conveying belt, and the paired stock-holding and conveying bodies are adapted to the size of the root stock and resist the machine. When the clamping interval is extended and reaches the root cutting cutter in a state of being strongly clamped, the root cutting cutter cuts the root of the root stock that is being conveyed in a short manner. Then, the unraveling device takes over the unraveling and performs the unraveling process, but since the entangled roots are cut short, the strains are easily divided and the damage to the shoots is extremely small.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to a pretreatment device for rush seedlings shown in the drawings. A lower frame 1 is mounted on a machine equipped with casters, and one end and the other end of the lower frame 1 are respectively left and right. A pair of rotating shafts 2, 2, 3 and 3 are rotatably supported by bearings, and are erected. An upper frame 5 is supported on the upper portions of these rotating shafts 2 and 3 via bearings so that they can also serve as columns. The upper and lower frames 1 and 5 are connected by a pair of front and rear struts 6a on both sides of an intermediate portion, and the left and right members of the upper frame 5 are front and rear by gate-shaped frames 4 and 4 which are higher than a tip cutter 25 described later. It is connected firmly at a plurality of places to form a solid structure and covers 4
a, pulleys 6, 6 attached to the lower side of the rotary shafts 2, 2 on the sending side and separated so as to have a feeding gap, and the rotary shafts 2, 2
A pair of stock belts 10, 10 for pinching and transporting the root stock of rush are respectively attached to pulleys 8, 8 which are pivotally supported at the ends of the swing arms 7, 7 extending from the pulley and which are adjacent to each other. . At that time, by making one of the pulleys 6 and 6 large in diameter, an irregular root stock can be easily supplied.

In the example shown in FIGS. 5 to 7 (not shown in FIGS. 1 and 2), the stock belt 1
The tips of 0 and 10 are root cutting cutters 26 and 2 described later.
6, the bosses at the bases of the swing arms 7, 7 are pivotally supported by the rotary shaft 2 spaced apart from the width of the nipping and conveying path, and the arms 7a projecting from the bosses are provided.
A strong spring 9 is stretched on the lower frame 1 and the arm 7a.
Until it comes into contact with the stopper 7b to urge it.
The swinging arm 10b of the tension roller 10a, which is in pressure contact with a middle portion of the stock belt 10 on the conveying side, has an arm 10c protruding from the base thereof, which is weaker than the spring 9 but is more distal than the middle portion of the stock belts 10,10. It is urged to rotate by being pulled by a spring 10d having a tension enough to keep the gap on the side substantially constant. In addition,
Although not shown, a stopper for setting the minimum holding gap is also provided on the arm 10c.

[0008] Further, unraveling transport belts 12 and 12 each composed of a chain having a large number of plates having a plurality of needle-like projections 11...
The front and rear sprockets 13, 13, the intermediate sprocket 15 protruding toward the conveyance path side and slightly deviating to the feeding side, and the tension sprocket 16 on the outside are stretched over the sprockets 13, 13, and the left and right unwinding conveyance bands 12, 13. 12 needle-like projections 11
Are sequentially projected at a gentle intrusion angle on the sending side into the transport path, mesh with each other in the vicinity of the corresponding portions of the intermediate sprockets 15 and 15, and the interval between the needle-like projections 11 is rapidly expanded radially. After that, the guide rails 14 are sequentially shifted outward at a gentler retreating angle, and a guide rail 14 is slidably contacted with the rear surface on the upper side in the transport direction with respect to the intermediate sprocket 15 so that the needle-shaped projection 11 is moved.・ ・ Forcibly pierce the root stock that is strongly involved,
Needle-like projections 11
・ A pair of slits which approach the tip of the needle-shaped projection 11 on the other side at a site where the needle-shaped projections 11... Are provided, and the guide plates 17, 17 have a U-shaped cross section,
The bottom plate serves as an exit guide plate 17a for guiding the end face of the cut root.

A large-diameter pulley attached to the lower part of the rotary shaft 3 on the sending side and a small-diameter pulley supported on the lower side of the rotary shaft 3 are provided with an outlet for strongly holding the unraveled root stock. Belts 18 are stretched, and a pair of left and right delivery rolls 19 having a large number of ridges or a large number of projections on the outer periphery are pivotally supported on the delivery side of these outlet belts 18.
The delivery rolls 19, 19 strongly pinch the loose root stock and rotate at a higher speed than the outlet belt 18 to pull and expand the loose root stock in the inter-stock direction.

Further, a pair of left and right stem tip holding belts 20, 20 and an intermediate holding belt 21 are provided above the stock base belt 10, the unraveling belt 12 and the outlet belt 18, which are connected in series at the lower part. 21 is mounted on the shaft 22a
The pulleys 22 and 22 are supported by the pulleys 22 and 22 and the pulleys 23 and 23 attached to the longitudinal axes 39a and 39a so as to pinch and convey the tip side and the intermediate portion.
On one side of a portion close to the upper surface of the base 20 and corresponding to a side slightly above the end of the stock belts 10, 10, a leading edge cutter 25 whose part of the outer periphery crosses the nipping and conveying path is pivotally supported. A pair of left and right root cutting cutters 26, 26, which traverse the nipping and conveying path in a state where the outer peripheral portion is vertically overlapped, are pivotally supported on the other side of the portion below and close to the lower surface of the stock belt 10, On the other side of the cutting cutter 25,
A receiving rod 24 is provided so as to sandwich the outer peripheral portion thereof with a slight gap therebetween.

As shown in FIG. 1 or FIG. 5, the outlet guide plate 17a has substantially the same height as the cutting edges of the root cutting cutters 26, 26, and immediately inherits the cut surface of the root cutting cutters 26, 26. In addition, a shallow entrance guide plate 17b having a U-shaped cross section is provided on the upper side of the root cutting cutters 26, 26 in the seedling transport direction so as to extend toward the front side. Yes, this entrance guide plate 17
b is a tapered shape in which the front side is widened in a plan view, and an appropriate cutting position is a root cutting cutter 2 in a state where a long root is mounted.
6 and 26, a gap A is provided between the rear end and the root cutting cutter 26 to allow the root to hang down.

FIG. 3 shows a power transmission system, in which an output V pulley 30 of an electric motor 28 attached to an intermediate portion (height) of a gantry is supported via a V-belt 31 at a position above the output pulley 30 in a front-rear direction. A sprocket 34 transmitted to a V pulley 33 of the intermediate shaft 32 and attached to the other end of the intermediate shaft 32;
A chain 37 is hung on an input sprocket 36 of a worm gear case 35 which is reduced to approximately 40: 1, and a sprocket 39 of the other rotary shaft 3 on which the sprocket 13 is mounted is attached by a output sprocket 38 to a chain provided with a tension roller 40. The gear 42 attached to the rotating shaft 3 is driven via a gear 41, and the gear 42 attached to the opposite rotating shaft 3 via gears 43 and 44 having the same diameter arranged in the lateral direction. The sprockets 46, 46 attached to the rotating shafts 3, 3 drive the sprockets 47, 47 having the longitudinal axes 39a, 39a via the chains 48, 48, and the sprocket 50 attached to the shaft of the one sprocket 13. Sprocket 51 of rotary shaft 2 on the sending side
The gear 53 is driven by driving the gear 53 attached to the other rotating shaft 2 via gears 54 and 55 meshing in series with the chain 52. An intermediate clamping belt 21, an unwinding belt 12,
Outlet belt 18 and delivery roll 19 (via chain 19a) rotate.

A bevel gear case 58 is provided on the feed side of the intermediate shaft 32 in the front-rear direction via a coupling 57.
And a chain 62 is stretched over the output sprocket 60 and the sprocket 61 of the intermediate shaft 61a.
Another sprocket 63 attached to the intermediate shaft 61a is linked to a sprocket 65 of the first cutter shaft 64 in the vertical direction by a chain 67 with a tension 66, and the first sprocket 63
One of the root cutting cutters 2 is provided below the cutter shaft 64.
6 is mounted on the lower side of the first cutter shaft 64, and the gear 68 of the shaft 26a to which the other root cutting cutter 26 is mounted via two gears 70 and 71 having the same diameter.
3 so that the left and right root cutters 26, 2
Reference numeral 6 denotes a sprocket 2 which is driven to rotate in the reverse direction so as to cut while pinching the stem,
5a is a sprocket 25b above the intermediate shaft 61a.
Is driven through the chain.

The operation of the pretreatment device for rush seedlings will now be described.
7b, the root stock portion is first sandwiched between the base stock belts 10 and 10 from a wide entrance, and at this time, even if the root stock is deformed, the root stock is smoothly pinched while being slowly rotated by the speed difference and conveyed. Then, the stem is sandwiched between the start ends of the stem tip holding belt 20 and the intermediate holding belt 21 and transported in a substantially vertical posture. About 25
It is cut to a length of 0 mm, and the root hair of the root root part has various sizes and shapes.
In addition, the inlet guide plate 17b guides the end faces of the roots, which are transported while being strongly pinched by 0, while maintaining a constant height, and the roots hang down in the gap A at the rear thereof, and the root cutting cutter 26, 26 cut the part close to the lower part of the position sandwiched by the base belt 10 to a length of about 20 mm below the rhizome, unravel from the end of the base belt 10 and transport the belt 12; , 12 between the beginnings.

Next, the stalk portion is fixed to the stalk pinching belts 20,2.
0 and the intermediate pinching belts 21 and 21 continue to be conveyed while being pinched at two upper and lower locations. The root stock is conveyed in a stable state with its lower surface resting on the exit guide plate 17b. The needle-like projections 11 of the transport bands 12, 12 move obliquely toward the nipping transport path, advance from the slits of the guide plate 17, and pierce the root stock sequentially deeply. Projection 11
・ Turn rapidly and stretch the strongly entangled roots to separate the root stocks. At this time, since the roots are short and cut, each root stock is easily separated, and after that, it retreats sequentially and the guide plate 17 , 17 are passed through the outlet belts 18, 18 immediately after being conveyed in a state of being strongly clamped, and the stems are released almost at the same time, and the root stocks sent out are sent to the delivery rolls 19, 19. Since it is sandwiched and pulled out at a speed higher than the transport speed, it becomes a thin band-like seedling.

In the above-described embodiment, the rotating shafts 2 and 3 and the vertical intermediate shafts 39a and 39b are moved up and down so as to perform root cutting, stem tip cutting and unraveling processing while transporting the seedlings in a substantially vertical posture. Although it is illustrated as being set in the direction, when the axes are inclined outwardly at an appropriate angle when viewed from the transport direction, for example, by 45 degrees, and the seedlings are transported in an oblique posture, an inclined receiving plate is provided in the supply unit. If the stem is received and the root end is received by the entrance guide plate 17b, the feeding position and the posture are specified simply by throwing in the seedling, and the feeding operation is facilitated.
The tip of the stem cut by the leading cutter 25 falls out of the transport path and does not become a transmission failure or a processing failure.

[0017]

According to the present invention, the root cutting cutter 26 is provided on the root stock side of the seedling holding and conveying passage leading to the root stock breaking device as described above.
Is disposed on the upstream side in the transport direction of the root cutter 26,
The base sides of a pair of stock-holding / conveying belts whose tip end overlaps with the root cutting cutter 26 are pivotally supported at an interval wider than the width of the seedling-holding / conveying passage and swingably. , So that even if the size or shape of the seedlings is not uniform, it can be easily supplied, but the squeezing and carrying belt is The root stock can be properly pinched and conveyed while adapting to the size and shape of the root stock, and the proper position of the root can be accurately cut by the root cutting cutter 26 in this pinched and conveyed state. Since the root stock is dissected and separated by an apparatus in a state where the roots are cut short, the strains can be strained very easily and reasonably, and the sprout of the seedling can be prevented from being damaged.

[Brief description of the drawings]

FIG. 1 is a side view of a rush seedling pretreatment device.

FIG. 2 is a plan view of the same.

FIG. 3 is a plan view of the transmission.

FIG. 4 is a transmission system diagram.

FIG. 5 is a side view of an example in which a pulley 8 has the same diameter as 6;

FIG. 6 is a plan view of a lower path of the same device.

FIG. 7 is a cross-sectional view of the opening device.

FIG. 8 is a plan view of an upper path of the same device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower frame 2 Rotating shaft 3 Rotating shaft 6 Pulley 10 Base belt 11 Needle-like projection 12 Unleashed conveyance belt 14 Guide rail 17 Guide plate 17a Exit guide plate 17b Inlet guide plate 18 Exit belt 19 Delivery roll 20 Stem tip holding belt 21 Intermediate clamping belt 25 First cut cutter 26 Root cutter

Claims (1)

(57) [Scope of request for utility model registration] 1. A root cutting cutter 26 is provided on the root stock side of a seedling holding and conveying path leading to a root stock releasing device, and the tip side overlaps with the root cutting cutter 26 on the upstream side in the transport direction of the root cutting cutter 26. The base side of a pair of stock carrier
A collective seedling pretreatment machine characterized in that it is pivotally supported at an interval wider than the width of the seedling holding and conveying passage and is swingable, and this stock holding conveying belt is urged by an elastic machine so as to narrow the holding gap. Transport device.