JPH052031Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention separates paper tube seedlings into paper tube seedlings one by one by continuously pulling out a group of paper tube seedlings connected in a row at a connecting part. The present invention relates to a separation device for paper tube seedlings, and particularly to a separation device for paper tube seedlings that is suitable for separating paper tube seedlings that have a separation line in the connecting portion to facilitate separation.

(Prior Art) Seedlings of plants are raised using a pot made of paper or a thin film such as paper, and the seedlings that have been raised are transplanted to a field with the pot still attached. Cultivation of plants in pots is widely practiced.

For cultivating such plants, continuous pots in which a large number of pots are grouped are usually used in order to streamline the work. Grouped pots are known in which the individual pots are connected in a row at the connecting section, which is provided with a separation guiding section to facilitate separation, and paper tube seedlings grown in such pots are pulled out in a row. 1 piece 1
An example of a separating and transplanting machine for paper tube seedlings, which separates and plants individual paper tube seedlings, is as shown in the above-mentioned Japanese Patent Publication No. 55-30805. A rotating guide consisting of a belt wrapped around two rollers at the front and rear in the direction of travel, and an inclined guide whose circumferential speed is higher than the circumferential speed of the rotating guide, which is provided close to the paper tube seedling exit side of the rotating guide. Transplanters are known that include a paper tube seedling separation device that includes a cylindrical roller or a conical roller.

(Problems to be Solved by the Invention) This invention is intended to improve the following disadvantages of the paper tube seedling separation device known from Japanese Patent Publication No. 55-30805.

The rotating guide of the above-mentioned paper tube seedling separation device consists of front and back rotating rollers that are installed to face each other on the left and right sides of the machine's traveling direction, and a belt that is wrapped around these rotating rollers. It is necessary to tighten the belt strongly in order to have the ability to draw out in rows, feed them forward, and hold sufficient paper tube seedlings between them. In this case, if dirt adheres to the inner surface of the belt or the surface of the rotating roller during work, the belt may meander over the rotating roller, or come off the rotating roller, or the belt may lose the tension again. There is an inconvenience of having to cut it. In order to eliminate this inconvenience, it is possible to use only the rotating roller without the belt, but if the belt is simply removed, the holding force for the paper tube seedlings will be insufficient, so to compensate for this, This is not preferable because it requires a large number of rollers with small rotation diameters to be arranged in parallel, which makes the device structure more complicated. Under these circumstances, there has been a desire for the above-mentioned paper tube seedling separation device that does not hinder work due to soil adhesion and has a simple structure.

(Means for Solving the Problems) This invention was made in response to the above-mentioned circumstances, and after intensive research on a structure using only rotating rollers, it was found that the structure is connected in a row with a connecting part having a separation line to facilitate separation. A rotating body for pulling out paper tube seedlings in a row and feeding them forward; and a rotating body for separating the fed paper tube seedlings individually, the rotating body having a circumferential speed higher than that of the rotating body. In a paper tube seedling separation device consisting of a rotating body provided close to the tube seedling exit side, the rotary body pulls out the paper tube seedling group P in a row and supplies it forward, and the rotary body pulls out the paper tube seedling group P in a row and supplies it forward in order in the traveling direction of the machine. , consisting of a first pair of rotating rollers 1 and 2 facing each other at an interval L in a direction perpendicular to the direction of movement of the aircraft, and a second pair of rotating rollers 3 and 4 facing each other at the same interval L; The diametrically opposing surfaces of one pair of rotating rollers 1, 2 and the second pair of rotating rollers 3, 4 are connected to the diametrically opposing surfaces of the other pair of rotating rollers. The above-mentioned inconvenience could be solved by providing one side of the opposing surface on either the left or right side in the direction of movement of the aircraft.

(Function) As explained in the figure, the first paper tube seedling P-1 of the paper tube seedling group P connected in a row by the connecting part 8 having the separation line 7 for easy separation is When placed on the opposing surfaces of a pair of rotating rollers 1 and 2, it advances while being in pressure contact with the rotating surfaces of this roller, and then one of the rotating rollers 1 of the first pair of rotating rollers and the second pair of rotating rollers The rollers 3 and 4 proceed in the same manner while coming into pressure contact with the rotating surface of one of the rotating rollers 4, and then come into pressure contact with the rotating surfaces of the second pair of rotating rollers 3 and 4. At this time, the second paper tube seedling P-2 following the top comes into pressure contact with the rotating surfaces of the rotating rollers 1 and 4, and the third paper tube seedling P-3 is rotated by the rotating rollers 1 and 2. pressure contact with the surface. Due to this relationship between the rotating rollers and the rows of paper tube seedlings P _r , the rows of paper tube seedlings P _r that are in progress are always in pressure contact with any two of the rotating rollers, and the paper tube seedlings P r by the rotating rollers The holding power of the tube seedlings P _r becomes large.

Furthermore, when the rows of paper tube seedlings P _r advance and the first paper tube seedling P-1 leaves the rotating rollers 3 and 4, the circumferential speed provided close to the paper tube seedling outlet side of the rotating rollers 3 and 4 is set as above. It comes into contact with the opposing contact surfaces of the rotating bodies 5 and 6, which are composed of a pair of inclined cylindrical rollers or a pair of conical rollers whose circumferential speed is higher than the circumferential speed of the first and second pair of rotating rollers, and is immediately rolled up. Because
An instantaneous tensile force acts on the connecting portion 8 that connects the leading paper tube seedling P-1 and the following second paper tube seedling P-2, which are in a rolled-up state, and this causes the connecting portion 8 to A V-shaped or inverted V-shaped tear is created on the provided separation line 7 to separate the connecting portions 8.

(Example) The following will be described in detail with reference to the examples shown in the drawings. In the drawings, 1, 2, 3, and 4 respectively indicate a pair of first and second rotating rollers that face each other at a distance L in a direction perpendicular to an arrow A indicating the direction of movement of the aircraft, and both of their rotating surfaces are It has enough elasticity to prevent damage to the rows of paper tube seedlings P _r due to pressure contact.
Reference numerals 5 and 6 indicate rotating bodies for separation consisting of a pair of inclined cylindrical rollers or a pair of conical rollers whose rotating surfaces are in contact with each other; It is provided at an intermediate position between the facing distances L, close to the paper tube seedling exit side of the rotating rollers 3 and 4, and its rotating surface sufficiently wraps the rows of paper tube seedlings P _r and makes pressure contact with them. It has enough elasticity that it will not be damaged even if it is touched.

In the above, the first pair of rotating rollers 1 and 2
and the opposing surface of one of the second pair of rotating rollers 3, 4 in a direction perpendicular to arrow A, with respect to the opposing surface of the other pair of rotating rollers,
Provided on either the left or right side.

In the figure, the opposing surfaces 1a and 2a of the first pair of rotating rollers 1 and 2 are replaced by the opposing surfaces 1a and 2a of the second pair of rotating rollers 3,
4 is shown shifted to the right side of arrow A with respect to the opposing surfaces 3a and 4a of No. 4. 1st and 2nd 1
The positional relationship of the pair of rotating rollers may vary depending on the shape and size of the row-shaped paper tube seedlings P _r used for transplantation, and the length of the connecting part 8, but as shown in the figure, The paper tube seedling P _r is in a meandering shape and is always in either 2
Set to make pressure contact with two rotating rollers.
Further, the diameters of each of the first and second pairs of rotating rollers are similarly appropriately selected depending on the shape of the rows of paper tube seedlings P _r and the like. Furthermore, when setting the respective positions of the first pair of rotating rollers 1 and 2 and the second pair of rotating rollers 3 and 4, if the setting positions are made adjustable, the rows of paper tube seedlings to be used can be adjusted. The adaptability of the system increases, which is advantageous.

The separation device for paper tube seedlings according to this invention has the structure described above, and an example of a transplanter incorporating this separation device is shown in FIG. 2. In the figure, a group of paper tube seedlings P connected in a row by a connecting part 8 having a separation line 7 for easy separation is placed on a conveyor belt 10 provided on a machine frame 9, and a group of paper tube seedlings P are placed in a row. The paper cylinder seedling group P is moved forward at a feeding speed corresponding to the pulling speed _r . The paper cylinder seedling separation device of this invention is installed close to the front of the conveyor belt 10. 1
Reference numeral 1 indicates a seedling receiver that receives separated paper tube seedlings one by one.
The seedlings fall into the planting groove opened by the operator, and the planting is fixed by the subsequent compression furrow ring 14. Reference numeral 15 indicates a ground contact drive wheel, which enables the aircraft to travel by being pulled by a traction device such as a tractor, and also controls the rotation of the drive shaft 16 of the ground contact drive wheel 15 by a sprocket 17,
17, the transmission mechanism section 19 by means of a chain 18, etc.
and further similar means (not shown)
This drives the conveyor belt 10 and the paper cylinder seedling separation device of this invention.

Now, using a transplanting machine incorporating the separation device of this invention shown in Figure 2, a hexagonal prism-shaped paper tube pot body with a diameter of 19 mm and a height of 130 mm is now separated into a pot with a width of 10 mm, including the upper edge in the middle of this width. 32mm cut section 20 at the bottom,
Subsequently, a continuous paper tube assembly is used which is connected in a row at connecting parts 8 in which the connecting parts 21 and the notches 20 are distributed in such a way that the 3 mm connecting parts 21 and the 25 mm notches 20 are repeated. When paper tube seedlings P, which had been grown for 40 days using sugar beets, were transplanted over a period of 17 hours, the paper tube seedlings P were pulled out smoothly in rows, and the work caused by the paper tube seedling separation device of this invention was improved. It resulted in highly efficient transplantation results with no interruptions. On the other hand, when the sugar beet paper tube seedlings group P was transplanted in the same manner using a transplanter equipped with a conventional paper tube seedling separation device known from Japanese Patent Publication No. 55-30805, it was found that approximately 35 The meandering of the belt had to be corrected once every minute, and the belt had to be removed from the rotating rollers once every five hours to remove the soil that had adhered to it.

(Effects) When using the paper tube seedling separation device of this invention,
Since there is no interruption in work due to soil adhesion, etc., and smooth transplanting work can be carried out at all times, work efficiency is improved and the advantages of cultivating plants using paper tubes are further enhanced. Furthermore, since the device structure is simple, it can be provided at low cost.

[Brief explanation of drawings]

FIG. 1 is a plan view illustrating an embodiment of the paper tube seedling separation device according to this invention, FIG. 2 is an example of a transplanter incorporating the paper tube seedling separation device of this invention, and FIG. 3 is a row of paper tubes. It is a drawing showing an example of a seedling. 1, 2...first pair of rotating rollers, 3, 4...
...a second pair of rotating rollers, 5, 6...a pair of inclined cylindrical rollers or a pair of conical rollers, 7...
...Separation line, 8...Connection part, P...Paper tube seedling group, P _r ...
...Paper tube seedlings in rows.

Claims (1)

[Claims for Utility Model Registration] (1) A rotating body for pulling out paper tube seedlings connected in a row at a connecting part having a separation line for easy separation and feeding them forward; In a paper tube seedling separation device comprising a rotating body having a circumferential speed higher than that of the rotating body and provided close to the paper tube seedling outlet side of the rotating body for separating the paper tube seedlings into individual paper tube seedlings, the Pull out the paper tube seedling group P in a row,
A first pair of rotating rollers 1 and 2, in which a rotating body for feeding forward is arranged in order in the traveling direction of the fuselage and facing each other at an interval L in a direction perpendicular to the traveling direction of the fuselage.
and a second pair of rotating rollers 3, 4 facing each other at the same distance L, one of the first pair of rotating rollers 1, 2 and the second pair of rotating rollers 3, 4. The diametrically opposing surfaces of one pair of rotating rollers are offset to either the left or right in the traveling direction of the aircraft with respect to the diametrically opposing surfaces of the other pair of rotating rollers. Separation device for paper tube seedlings. (2) Separation of paper tube seedlings according to claim 1, characterized in that the setting positions of the first pair of rotating rollers 1 and 2 and the second pair of rotating rollers 3 and 4 are adjustable. Device.