JP2547535Y2 - Transmission system for collective seedling pretreatment machine - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application] The present invention solves a root stock so as to easily plant a group seedling having strong roots, such as an adult rice plant or a rush plant, before planting it in a field by a planting device. The present invention relates to a transmission device for a collective seedling pretreatment machine that performs a cutting process and a cutting process.

[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] Since the above-mentioned device for unraveling the seedlings merely unravels the root stock, long roots and stems become obstacles for planting with the planting device. After the disintegration treatment, it was necessary to shred with another device, which increased the cost and required a lot of trouble. Therefore, when a cutting device consisting of a deraising device and a plurality of cutting means and a transport device for smoothly operating the devices are provided in parallel, a root stock deraising process and a stem and root cutting process are performed in series. It is now possible to do everything in the process. However, while the unraveling device and the transporting device have to directly hold the root stock and stem of the seedling and transport it at a low speed so as to undergo the unraveling and cutting process, the cutting device must rotate the rotary blade at high speed. Because
The transmission device became complicated, the device became larger, the cost increased, and the power loss increased.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to a conveying device for pinching and conveying a root stock or a stem, a cutting device including a plurality of rotary blades for shortening a seedling conveyed by the conveying device, and a root stock demolition device. When driven by one prime mover, a low-speed rotation drive is provided with a reduction gear interposed in the transmission system of the transfer device including the root release device and the transfer device, and the power of the transmission system to the cutting device is The above-mentioned problem has been solved by simplifying the power transmission system by taking out in front of the reduction gear and driving it at high speed.

[0005]

[Action] Collective seedlings with strong roots dug from the nursery,
When supplied to the transfer device, the cutting device cuts the roots and stems of the seedling being conveyed, and then the release device releases and processes the root stock. The conveying device and the unraveling device are driven to rotate at a low speed by a transmission system in which a reduction gear is interposed, and a plurality of rotary blades are distributed with power to the transmission system of the reduction gear before the reduction gear. Therefore, it can be driven at a high speed, and the transmission system can be divided into two systems so that a simple transmission device can be used.
It can be driven accurately.

[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] A plurality of plates having a plurality of needle-like projections 11 on the sending side of the stock belts 10, 10 are attached to a chain. And an intermediate sprocket 15 protruding toward the transport path side from them and slightly displaced toward the sending side.
And the outer tension sprocket 16, and the needle-like protrusions 11...
On the sending side, the projecting parts are sequentially projected at a gentle intrusion angle on the sending side, mesh with each other in the vicinity of the parts corresponding to the intermediate sprockets 15, and the interval between the needle-like projections 11. The guide rail 14 is slid on the rear side of the intermediate sprocket 15 in the transport direction above the intermediate sprocket 15 so that the needle-like projections 11 are strongly strengthened. It is forcibly pierced into the entangled root stock, and the inside of the unraveling belts 12 and 12 approaches the tip of the needle-like projection 11 on the other side at the site where the needle-like projections 11. A pair of guide plates 17, 17 having a slit that is gently expanded on the sending side and the sending side from this part and has a slit through which the needle-like protrusions 11 pass are provided, and these guide plates 17, 17 are provided.
Has a U-shaped cross section, and its bottom plate is
The exit guide plate 17a guides 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 dislodged root stock and rotate at a higher speed than the exit belt 18 to pull and expand the dislodged root stock in the inter-stock direction and stretch it.

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 mounted near the upper portions of the rotary shafts 3 and 3 so as to pinch and transport the tip side and the intermediate portion. 20 and close to the upper surface of the stock source belt 10,
On one side of the part corresponding to the slightly better side than the end of 10,
First-cut cutter 2 with a part of the outer circumference crossing the nipping and conveying path
5 and a pair of left and right root cutting cutters 2 crossing the nipping and conveying path in a state in which the outer peripheral portion is vertically overlapped with the lower side of the portion adjacent to the lower surface of the stock belt 10 below the lower portion.
On the opposite side of the leading 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. 2 or 5, 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 expanded in plan view, and the proper cutting position is set at the root cutting cutter 26 with the long root 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. 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 supported on the delivery side of the upper frame 5 via chains 48, 48. A chain 52 is stretched over a sprocket 50 attached to the shaft 13 and a sprocket 51 of the rotating shaft 2 on the feeding side to drive a gear 53. The gear 53 drives a gear 56 attached to the other rotating shaft 2 via gears 54 and 55 meshing in series with the gear 53, so that the stem pinching belt 20, the intermediate pinching belt 21, the unraveling conveyance belt 12, and the outlet belt 18 And the delivery roll 19 is driven to rotate at low speed. Also, as described above,
By driving the left and right rotating bodies in combination with the gears, it is possible to easily perform the reverse rotation at a constant speed and to prevent the displacement.

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 of the same diameter.
Are meshed with the gear 73 of the shaft 26a to which the left and right root cutting cutters 26, 26 are rotated at high speed in the reverse direction so as to cut while pinching the stem, and are mounted on the shaft of the leading cutter 25. Sprocket 25a
The sprocket 25b above the intermediate shaft 61a is driven to rotate at high speed 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 by the starting end of the intermediate holding belt 21 and transported in a substantially vertical posture. The tip of the stem is cut to a length of about 250 mm above the underground stem by the tip cutter 25 at the upper portion in the vicinity of the holding, and the root hair of the root stock part , 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 thereof, and the root cutting cutters 26, 26 are pinched by the stock belt 10. Approximately 20mm below the rhizome at a position close to the lower part of the position
After being cut to a length, the stock belt 10 is released from the end of the belt 10 and is 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 holding belts 21 and 21 continue to be conveyed while being pinched at two upper and lower positions. The root stock is conveyed in a stable state with its lower surface resting on the exit guide plate 17a. 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 stumps.
Exit from slit 17 and immediately after exit belt 1
8, 18 and delivered in a state of being strongly pinched,
At about the same time, the stem portion is released, and the fed root stock is sandwiched between the delivery rolls 19, 19 and is drawn out at a speed higher than the transport speed.

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 a transport device for sandwiching and transporting a root stock or a stem, a cutting device including a plurality of rotary blades for shortening the seedlings transported by the transport device, and a root stock demolition device. When driven by two prime movers, the transmission system of the transfer device including the root stock release device and the transfer device, etc., is driven at a low speed by interposing a speed reduction device, and the power of the transmission system to the cutting device is provided before the speed reduction device. And a high-speed rotation drive, so that the power of one prime mover is a transmission system of multiple rotating blades that require high-speed rotation drive, and a derailleur for unraveling transport devices and root stock that require low-speed rotation drive Can be easily distributed to the transmission system, and various devices having remarkably different proper rotation speeds can be driven accurately and easily for each system, and downsizing and cost reduction can be achieved.

[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] A conveying device for nipping and conveying a root stock and a stem;
A cutting device comprising a plurality of rotary blades for shortening the seedlings conveyed by the conveying device, and a root removing device, driven by a single motor, the transport device comprising the root removing device and the transport device, etc. A group seedling pretreatment device characterized in that the transmission system is driven at a low speed by interposing a speed reduction device, and the power of the transmission system to the cutting device is taken out before the speed reduction device and driven at a high speed. Gearing.