JP2546677Y2 - Collective seedling root stock enlarger - Google Patents

Description

[Detailed description of the invention]

[0001]

Industrial Applicability The present invention dissolves a root stock so that a group seedling having strong roots, such as an adult rice seedling or a rush seedling, can be easily planted before being planted in a field by a planting device. And a stretching device.

[0002]

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

[0003]

Since the above-mentioned known unraveling device only unravels and discharges the seedlings, it shrinks due to bending of the roots, and in order to obtain a proper seedling density, It is necessary to apply a separate stretching process or attach another stretching transport device to the planting device, which increases the cost and transfers the once discharged to another device for processing, so the seedling density is reduced. Problems such as non-uniformity occur.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided an unraveling and conveying device having a large number of projections piercing the roots of a seedling, wherein the unraveling and rooting device holds the unraveled root stock. Provision of an exit transport device for transporting the root stock, and a delivery device for pinching and transporting the root stock while stretching the root stock at a transport speed higher than the exit transport device on the delivery side so as to continuously stretch the unprocessed root stock. The above-mentioned problem has been solved.

[0005]

[Action] Collective seedlings with strong roots dug from the nursery,
When supplied to the unraveling device, the unraveling device unravels the root stock, and as soon as it is discharged, it is taken over by the stretching device, the exit transport device transports the root stock in a strongly pinched state, and the sending device is the outlet transport. Since the root stock is conveyed while being pinched at a higher speed than the apparatus, the root stock is stretched between the exit conveying apparatus and the delivery apparatus.

[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 that are pivotally supported at the ends of the swing arms 7, 7 that extend from and that convey the root stock of rush. As shown in FIG. 5 (not shown in the example of FIGS. 1 and 2), the diameter of one of the pulleys 6 and 6 is increased so that an irregular root stock can be easily supplied. A strong spring 9 is stretched between the arm 7a protruding from the boss of the boss 7 and the lower frame 1 to pull and urge the arm 7a until it comes into contact with the stopper 7b. The swinging arm 10b of the tension roller 10a that is in pressure contact with the
Is rotationally biased by pulling the spring by a spring 10d.

[0007] On both sides of the feed side of the stock base belts 10, 10, a pair of unraveling transport bands 12, 12 are provided, and the unraveling transport band 12 has a plurality of needle-like projections 11,. And a sprocket 13, which is attached to the chain, has intermediate sprockets 15 protruding toward the conveying path side from the front and rear sprockets and slightly deviating toward the feeding side, and an outer tension sprocket. 16 and the right and left unraveling transport belts 12,
The needle-like projections 11 project sequentially at the sending side into the transport path at a gentle intrusion angle, and the intermediate sprockets 15, 15
And the distance between the needle-like projections 11 is rapidly expanded radially in the vicinity of the corresponding part, and after that, the needle-like projections 11 are sequentially shifted outward at a more gentle exit angle. A guide rail 14 is slid on the rear side of the intermediate sprocket 15 in the conveying direction so that the needle rail 11 is forcibly pierced into the root stock in which the needle-shaped projections 11 are strongly entangled. Inside the inside of the needle 12, the needle-shaped protrusion 11 approaches the tip of the needle-shaped protrusion 11 on the other side at the point where the needle-shaped protrusion 11 meshes, and the needle-shaped protrusion 11 is gently expanded on the sending side and the sending side from this part. A pair of guide plates (guide members) 17, 1 having slits through which the projections 11 pass.
The guide plates 17, 17 have a U-shape in cross section, and the bottom plate is an exit guide plate 17a for guiding the end face of the cut root. When the needle-like projection 11 is formed into an elongated shape like a (-) screwdriver in the shape of a flat bar along a stem direction, as shown in FIG. If the rod type is mixed and disposed according to the position facing the root stock, it is possible to prevent the root from being damaged while improving the breaking action.

A large-diameter pulley 18a attached to the lower side of the longitudinal axis 39a on the sending side, and a swing arm 18
b, a small diameter pulley 18c pivotally supported at the tip of the b.
8 and is driven to rotate at the same speed as the stem tip holding belt 20 and the intermediate holding belt 21, and the arm extending from the boss of the swing arm 3b is pulled by a spring 18d to pull out the tip of the outlet belt 18, 18. So as to strongly pinch the seedlings, and on the delivery side of these outlet belts 18,
A pair of left and right delivery rolls 19, 19 made of a resilient material such as rubber and having a plurality of projections or a number of projections on the outer periphery and serving as a delivery device are pivotally supported as a delivery device. By rotating a chain 19c on a large-diameter sprocket 19a attached to the lower part of the rotary shaft 3 and a small-diameter sprocket 19b attached to the lower end of the shaft of the delivery roll 19, the chain 19c rotates faster than the outlet belt 18. The unraveled root stock is driven and pulled tightly by the outlet belts 18 and 18 to be conveyed, and the unraveled root stock is expanded in the inter-plant direction and stretched without damaging the seedlings.

Further, a pair of left and right stem tip holding belts 20, 20 and an intermediate holding belt 21, 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 traversing the nipping and conveying path, with the outer peripheral part overlapping vertically, are supported on the other side of the part below and near the lower surface of the stock belt 10. , On the opposite side of the leading edge cutter 25,
A receiving rod 24 is provided so as to sandwich the outer peripheral portion thereof with a slight gap therebetween.

The exit guide plate 17a is substantially at the same height as the cutting edges of the root cutting cutters 26, 26 as shown in FIG. 1 or 5, and immediately inherits the cut surface of the root cutting cutters 26, 26. In addition, a shallow population guide plate 17b 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, and has a shallow U-shaped cross section. Yes, this entrance guide plate 17
b is a tapered shape in which the front side is widened in a plan view, and the appropriate cutting position is root cutting cutter-26 in a state where a long root is mounted.
A gap A is provided between the rear end and the root cutting cutter 26 so as 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 above and below 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 of the longitudinal axes 39a, 39a via chains 48, 48,
A chain 52 is stretched over a sprocket 50 attached to the shaft of one of the sprockets 13 and a sprocket 51 of the rotating shaft 2 on the feeding side, and a gear 53 is driven.
Drives the gear 56 attached to the other rotary shaft 2 via the gears 54 and 55 that mesh with it in series, so that the stalk pinch belt 20, the intermediate pinch belt 21, the unraveling conveyance band 12, the exit belt 18 and the delivery roll 19 (via the chain 19a) rotates.

A bevel gear case 58 is provided via a coupling 57 on the feed side of the intermediate shaft 32 in the front-rear direction.
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 attached to the sprocket 65 of the first cutter shaft 64 by tension 66.
One of the root cutting cutters 26 is attached to the first cutter shaft 64,
The gear 68 attached to the lower side of the cutter shaft 64 is connected to the other root cutting cutter 26 via two gears 70 and 71 having the same diameter.
Are engaged with the gear 73 of the shaft 26a to which the shaft cutter 26a is attached, so that the left and right root cutting cutters 26, 26 are driven in reverse rotation so as to cut while pinching the stems, and the sprocket 25a attached to the shaft of the leading cutter 25. Is driven by a sprocket 25b above the intermediate shaft 61a via a chain.

Next, the operation of the pretreatment device for rush seedlings will be described.
7b, the root stock is first sandwiched between the base stock belts 10, 10. At this time, even if the root stock is deformed, the root stock is smoothly pinched and conveyed while rotating slowly due to a speed difference. Then the stem is the stem tip holding belt 20,
It is sandwiched between the start ends of the intermediate holding belts 21 and transported in a substantially vertical posture. , The entrance guide plate 17b guides the end faces of the group of roots while maintaining a constant height, the roots hang down in the gap A at the rear, and the root cutting cutters 26, 26 are pinched by the stock belt 10. The position close to the lower part of the set position is about 20 mm below the rhizome.
After being cut to the length, the stock belt 10 is released from the end of the belt 10 and discharged toward the start of the transport belts 12 and 12.

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 belts 12, 12 are forcibly pushed out by the guide rails 14 having a U-shaped cross section while moving in an oblique attitude directed toward the nipping transport path, and advance from the slits of the guide plate 17 to be rooted. Part of the intermediate sprockets 15, 15 and needle-like projections 11.・ Turn rapidly and stretch the strongly entangled roots to separate the root stock, and after that, the retreat angle of the lower side of the intermediate sprocket 15 is smaller than that of the upper side, so the inclination angle when exiting Slits of guide plates 17, 17, which are small and do not tear off or carry around shoots, stems and roots, and are easily retracted and unraveled to form a letter angle larger than that of transport belt 12. And immediately after that, it is delivered to the outlet belts 18 and 18 and transported in a state of being strongly pinched, and at substantially the same time, the stems are released, and the root stocks sent out are sent out by the delivery rolls 19 and 18.
The belt-like seedlings 19 are drawn out at a speed higher than the transport speed of the outlet belt 18 and become a thin layer of band-shaped seedlings having a wide space between the plants.

In the above-described embodiment, the rotary shafts 2, 3 and the vertical intermediate shafts 39a, 39b are moved up and down so as to perform root cutting, stem tip cutting, unraveling, etc. while carrying 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.

[0016]

According to the present invention, there is provided an unraveling and transporting device having a number of projections piercing the roots of a seedling, and the unraveling and transporting device is pinched to transport the unraveled root stock. An exit transport device is provided, and a delivery device that nips and transports the root stock while stretching it at a transport speed higher than that of the exit transport device is provided on the delivery side, so that the root stock can be stretched following the root stock unraveling process. It is possible to improve the work efficiency and to reduce the cost by making a simple configuration, and it is possible to make the band-shaped seedling with a substantially constant seedling density. Applicability can be improved.

[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. An unloading and transporting device having a number of projections 11 piercing the roots of a seedling, comprising an unloading transporting device for pinching and transporting the unraveled root stock to the unloading side of the unraveling and transporting device. And a delivery device for pinching and transporting the root stock while stretching the root stock at a transport speed higher than that of the exit transport device on the delivery side thereof.