JP3475373B2 - Method and apparatus for separating seedlings of connected seedlings - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a seedling separation of a group of connected seedlings, which separates a group of connected seedlings formed by arranging a large number of seedlings such as paper tube seedlings for each row in transplant cultivation of agricultural crops. A method and its apparatus.

[0002]

2. Description of the Related Art A seedling row separating device for this kind of connected seedling group is disclosed in Japanese Patent Publication No. 6-38722. The main part of the conventional device is shown in FIG.

This device comprises a seedling pressing needle 2 which is inserted from above in the second row of the collected seedlings P corresponding to the group of connected seedlings in the present invention on the collected seedling supply conveyor 1, and the second seedling P of the collected seedlings P. Seedling separation plate 3 that contacts the first row, and this seedling separation plate 3
And a seedling separating needle 4 which is inserted into each soil-attached seedling of the row seedling of the first row of the collective seedling P.

Then, the seedling pressing needle 2 is inserted into each soil-applied seedling of the second row row seedling of the collective seedling P, and the seedling separating needle 4 is placed in each soil of the first row row seedling. When the seedling separating plate 3 is slightly retracted while being stabbed by the attached seedlings, the seedlings in the first row are separated from the seedlings in the second row.

[0005]

The above-mentioned conventional separating device has the following drawbacks.

[0006] Each seedling with soil is pierced with the seedling pressing needle 2 at the upper end portion thereof, that is, the seedling end portion side of the seedling, and then the seedling separating needle 4 is further pierced, so that the needle is pierced twice. Will damage the leaves, etc.

Further, a seedling separating needle 4 is provided on the upper part of the first row seedlings.
When you stab, the leaves of the second row seedlings may also be stabbed at the same time. In this case, the leaves of the first row of seedlings are removed or the second row of seedlings are also peeled off via the leaves.

Further, the seedling separating plate 3 is slightly retracted while the seedling separating needle 4 is inserted in the upper part of the first row seedlings, so that the first row seedlings are It is torn off in a posture that is almost parallel to the second row seedlings.

That is, a large peeling force acts on the second row seedling in the direction of peeling it from the third row seedling. Therefore, in order to prevent the second row of row seedlings from falling or to prevent the second row of row seedlings from peeling off from the third row of row seedlings, the first row of row seedlings are pulled. It is necessary to hold down the second row seedlings during peeling.

According to the present invention, when the front row of seedlings is peeled off from the row of seedlings adjacent thereto, the row of seedlings can be reliably separated without damaging the leaves of the seedlings of the row of adjacent seedlings. An object of the present invention is to provide a method for separating seedling rows from a connected seedling group and an apparatus therefor.

[0011]

The method for separating a seedling row of a connected seedling group according to the present invention is such that each seedling forming the frontmost seedling row Q1 is first gradually bent at the lower side to be partially peeled off, and thereafter, The remaining upper side is gradually peeled off to completely separate it.

The seedling row separating device for a connected seedling group according to the present invention comprises first peeling means F for gradually bending the lower side of each seedling forming the frontmost seedling row Q1 and partially peeling it off, and those seedlings. A second peeling means G for gradually peeling off the remaining upper side of the above to completely separate it.

[0013]

In the front row of seedlings, the lower side of each row of seedlings is gradually bent and partially peeled off from the row of seedlings adjacent thereto. After that, the remaining upper side of each seedling is gradually peeled off from the row of seedlings adjacent to it and completely separated.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. FIG. 1 is a side view of a seedling transplanter equipped with a seedling row separating device for a connected seedling group according to an embodiment of the present invention.

The seedling transplanter has a main frame 5 and an upper and lower auxiliary frame 6 for connecting to a tractor (not shown).
a, 6b, drive wheel 7, rolling corta 8 for cutting foreign substances, opener 9 for making a furrow, seedling planter 10 for planting seedling in the furrow, and suppressing the planted seedling The squeeze wheel 11 is provided and the seedling row separating device A of the present invention is mounted.

The seedling row separating device A is composed of paper tube seedlings (hereinafter,
A seedling row separating mechanism B that separates a connected seedling group Q in which "seedlings" are arranged in sequence, and a seedling group Q that is connected to this seedling row separating mechanism B
And a carry-out conveyor D that carries out the seedling row Q0 separated by the seedling row separating mechanism B to the seedling transplanter side. Of these, the supply conveyor C is the main frame 5 of the seedling transplanter. At one end, the carry-out conveyor D is supported on the middle portion thereof, and the seedling separation mechanism B is provided with a pair of standing frames 1 standing on the other end side of the main frame 5.
2 and 12 (one of which is not shown), and a part thereof faces the connected seedling group Q on the supply conveyor C.

In the connected seedling group Q, a seedling row in which adjacent seedlings are in close contact with each other and a seedling row in which adjacent seedling rows are alternately sandwiched and spaced apart from each other are orthogonal to each other. It has a honeycomb structure.

Then, the above-mentioned connected seedling group Q is placed on the supply conveyor C with each seedling standing upright and with the seeding end portion of the seedling positioned above it. In this example, the first row of seedlings facing the seedling row separating mechanism B is the first row of seedlings Q1, and the row of seedlings adjacent to the row of seedlings is the second row of seedlings Q2.
Show as.

The supply conveyor C includes a pair of rotating rollers 13 and 14 arranged in parallel with each other, and these rotating rollers 1
It is composed of a supply belt 15 which is stretched between 3 and 14 and on which the above-mentioned coupled seedling group Q is placed, and a motor M1 which is stretched and coupled with a chain 16 between one of the rotating rollers 13 and the motor M1. The supply belt 15 is connected to the seedling group Q by driving
To move to the seedling separation mechanism B.

At the delivery end of the supply conveyor C, peeling prevention means E for preventing the lower end of the second seedling row Q2 from peeling off from a third seedling row (not shown) adjacent thereto is arranged. ing.

The peeling prevention means E comprises drive rods 17a, 1
7a (one of which is not shown) is oriented vertically upward, and hydraulic cylinders 17, 17 arranged on the left and right sides of the delivery end of the supply belt 15, and a connecting member 18 straddled between the drive rods 17a, 17a. It is composed of a plurality of insertion pins 19 standing on the seedlings at intervals so that they can be inserted into each seedling of the seedling row, and a guide member 21 having a fitting insertion hole 20 into which these insertion pins 19 are slidably inserted.

The peeling prevention means E is the first of the connected seedling group Q.
Seedling row Q1 of seedling separating plate 22 as a bending member described later
Is arranged at a position corresponding to the lower side of the second seedling row Q2 when abutting on the upper surface 21 of the guide member 21.
a is flush with the upper surface of the supply belt 15.

The seedling row separating mechanism B includes a seedling row separating section F as a first peeling means, a peeling mechanism G as a second peeling means, and a hydraulic cylinder 2 for moving the peeling mechanism G.
It consists of 3 mag.

One end of each of horizontal frames 24 and 24 (one of which is not shown) is connected to the upper ends of the pair of standing frames 12 and 12, respectively. Further, substantially inverted trapezoidal plate-shaped support plates 25, 25 are suspended and fixed between intermediate portions of the horizontal frames 24, 24, and a support shaft 26 pivotally supporting a peeling mechanism G is rotated between lower end portions thereof. It is freely crossed over.

A body portion 23a of the hydraulic cylinder 23 is pin-connected between the upper ends of the standing frames 12 and 12,
The drive rod 23b is the side plates 27, 27 of the peeling mechanism G.
It is connected to a connecting pipe 28 which is horizontally mounted on the upper end of the rear side via a mounting piece 28a.

As a result, the peeling mechanism G causes the drive rod 23b of the hydraulic cylinder 23 to expand and contract, and the initial position (a) shown by a solid line around the support shaft 26 and the seedling row opening position (b) shown by a two-dot chain line. ) And is rocked (Fig. 1).

Hanging frames 29, 29 (one of which is not shown) are connected to the end portions of the horizontal frames 24, 24, and fall prevention means H are attached to them.

The falling prevention means H is composed of the hanging frames 29, 2
Swing levers 30 and 30 (one of which is not shown) pivotally supported by attachment pieces 29a and 29a (one of which is not shown) fixed to the lower end of 9, and the upper end of these and the hanging frame 29,
29, tension springs 31 and 31 (one of which is not shown) stretched between 29 and 29, and a seedling contact roller 32 which is horizontally stretched between swing levers 30 and 30.

In this structure, the seedling contact roller 32 is in contact with the upper side of the first seedling row Q1 and is elastically pressed toward the second seedling row Q2 by the tension springs 31 and 31. The elastic force of the tension springs 31, 31 does not hinder the separating operation of the seedling row by the peeling mechanism G described later, and
It is set to such an extent that the second seedling Q2 can be prevented from falling.

As a result, even if the separation of seedlings progresses and the remaining seedlings become less and become unstable, the second seedling Q2 of the second seedling Q2 accompanying the peeling operation of the first seedling Q1 is removed. It is designed so that it can be prevented from falling forward.

The peeling mechanism G includes a pair of side plates 27 and 27 pivotally supported by a support shaft 26 of the support plates 25 and 25,
A hydraulic cylinder 33 in which the main body portion 33a is pin-connected to the mounting piece 28a of the connecting pipe 28, and arc-shaped internal tooth rack members 35 and 35 fixed around the shafts 34 and 34 on the front inner surfaces of the side plates 27 and 27, respectively. Consists of. Gears 37, 37 fixed to a cam shaft 36 of a seedling row separation section F, which will be described in detail later, mesh with the internal tooth rack members 35, 35.

A seedling row separating portion F is pivotally supported about the shafts 34, 34 between the front upper end portions between the side plates 27, 27, and the seedling row separating portion F is provided with it. The hydraulic cylinder 33 is attached to the attachment piece 40a of the connecting pipe 40.
Drive rod 33b is attached.

By expanding and contracting the drive rod 33b of the hydraulic cylinder 33, the seedling row separating section F rotates about the shafts 34, 34, and the peeling start position (C) indicated by a solid line and the lower side indicated by a chain double-dashed line. It moves to and from the side peeling position (d) (Fig. 1).

The structure of the seedling row separating section F is as follows.
Reference numeral 38 denotes a plane U-shaped plate frame. The upper ends of the bent portions 38a, 38a of the plate frame 38 are formed by the side plates 27,
It is pivotally supported by shafts 34, 34 formed at the front upper end of 27.

A support shaft 39 for tiltably supporting the seedling separating plate 22 is laterally installed between the lower ends of the bent portions 38a, 38a, and a cam shaft 36 and the connecting pipe 40 are laterally installed in the middle portion. Has been done. Further, an attachment piece 40a for attaching the drive rod 33b of the hydraulic cylinder 33 is formed at an intermediate portion of the connecting pipe 40.

The seedling separating plate 22 is a horizontal rectangle whose lower end is fixed to the support shaft 39, and its upper end 22
A is bent to the back surface 22b side (FIG. 4).

Rectangular window holes 41, 41 are formed in the seedling separating plate 22 at symmetrical positions (FIG. 3). In these window portions 41, 41, seedling contact pieces 42, 42, which are slightly smaller than these, are arranged via hinges 43, 43 (FIG. 3).

Limit switches LS and LS for detecting the movement of the seedling abutment pieces 42 and 42 and running / stopping the supply conveyor C on the sides of the window holes 41 and 41.
Is fixed. In addition, when the seedling contact piece 42 does not contact the first seedling row Q1, the surface 22 of the seedling separating plate 22.
It is in a state of protruding to the c side (Fig. 4).

Cam contact portions 44 and 44 (one of which is not shown) are fixed to the outer sides of the window holes 41 and 41, and the motor M2 is fixed to the central portion.

The cam shaft 36 has a gear 37,
Besides 37, a pair of plate cams 45, 45 are fixed at positions facing the cam contact portions 44, 44.

These plate cams 45, 45 are connected to the cam shaft 36.
By a half rotation of the cam contact portions 44, 44,
The seedling separation plate 22 is tilted from the positioning position (e) to the seedling bending position (f) and the cam shaft 36 is further rotated a half turn to return from the seedling bending position (f) to the positioning position (e). It has a peripheral shape (Fig. 4).

The arm 4 is attached to the drive shaft M2a of the motor M2.
A needle support member 48 that supports the seedling separation needle 47 is fixed via 6. The seedling separating needles 47 are arranged at consecutive intervals of the respective seedlings forming the first seedling row Q1, and each of them has a needle-like shape formed by curving in a C shape, and the motor M2.
Driven to insert the seedling separating plate 22 into the lower part of each seedling of the first seedling row Q1 in contact with the seedling separating plate 22 (g)
And the extraction position (h) extracted from the lower part thereof (FIG. 4).

Next, the operation of separating the connected seedling group into each seedling row will be described. First, before the start of the separating operation, the seedling row separating unit F is stopped at the initial position (C).

When the connected seedling group Q is placed on the supply conveyor C and the separating operation is started, the connected seedling Q is transferred to the seedling row separating section F. When the first seedling row Q1 approaches the seedling separating plate 22 of the seedling separating section F, the contact piece 42
The detection lever LSa (FIG. 4) of the limit switch LS is pressed via. The pressing causes the first seedling row Q1 to come into contact with the seedling separating plate 22 and to move to the separating position, and the supply conveyor C is stopped (FIG. 5).

At this time, the seedling contact roller 32 contacts the upper part of the front surface of the first seedling row Q1, presses this roller toward the second seedling row Q2, and stops the supply conveyor C. Thus, the insertion pin 19 is inserted into the lower end portion of the second seedling row Q2.

Next, the motor M2 is driven to move the seedling separating needle 47 from the withdrawal position (H) to the puncture position (G) so that the seedling separating needle 47 moves to the lower part of each seedling forming the first seedling row Q1. Inserted (Fig. 6).

When the seedling separating needle 47 has been inserted, the hydraulic cylinder 33 is driven and its drive rod 33 is driven.
b is degenerately driven (FIG. 7).

When the drive rod 33b is driven to retract, the seedling separation section F begins to tilt from the initial position (c) toward the tilting position (d), and the gear 37 of the camshaft 36 moves inward in accordance with the tilting. It moves along the tooth rack member 35. In accordance with the movement, the cam shaft 36 itself also rotates, and the plate cam 45 gradually pushes the cam contact portion 44 of the seedling separating plate 22.

By the pressing by the plate cam 45, the seedling separating plate 22 begins to tilt around the support shaft 39, and the upper end portion 22a thereof moves toward the first seedling row Q1. On the other hand, the seedling row separating portion F itself which supports the seedling separating plate 22 is in a direction opposite to the moving direction of the upper end portion 22a of the seedling separating plate 22, that is, the first by the retracting drive of the drive rod 33b of the hydraulic cylinder 33. Move in a direction away from the front of the seedling row Q1.

In other words, the upper end 22 of the seedling separating plate 22
The movement amount of a toward the first seedling row Q1 and the movement amount of the seedling separation portion F that supports the seedling separation plate 22 cancel each other out, and the upper end portion 22a of the seedling separation plate 22 is It does not move relative to the first seedling row Q1 and maintains the state of being in contact with the front surface thereof.

That is, the seedling separating plate 2 is provided from the side of the device.
When observing No. 2, it is tilted in a direction in which its lower end portion is separated from the front surface of the first seedling row Q1 with its upper end portion 22a being substantially a fulcrum (FIG. 7).

By the tilting, the first seedling row Q1 is bent such that the lower side thereof is separated from the second seedling row Q2 with the upper end portion 22a of the seedling separating plate 22 as a fulcrum, and from the lower portion thereof. It begins to be peeled off gradually (Fig. 8).

When the seedling separating plate 22 serving as a fulcrum is peeled off to the upper end 22a, the seedling separating plate 22 is moved to the seedling bending position (f) by the plate cam 45,
From this position, the drive rod 33 of the hydraulic cylinder 33 is further
When b is retracted and driven, it starts to return to the original positioning position (e).

Then, when the sliding rod 33b of the hydraulic cylinder 33 is further driven to retract, the seedling separation section F further tilts, and in accordance with this tilting, the remaining upper part of the first seedling Q1 is gradually pulled off. (Fig. 9). At this time, since the seedling separation plate 22 also returns toward the positioning position (e),
This operation works to assist the seedling separation operation by the seedling separation section F.

When the above peeling operation is completed, next,
The sliding rod 23b of the hydraulic cylinder 23 is driven to retract,
As a result, the peeling mechanism G moves from the initial position (a) to the tilting position (b).

According to this movement, the seedling row separating section F is moved to the release position (i) facing the upper part of the carry-out conveyor D together with the separated seedling row Q1 (FIG. 10). At this release position (re), the motor M2 is driven to drive the seedling separating needle 47.
When the seeds are moved to the extraction position (h), the separated seedling row Q1
Is released onto the unloading conveyor D below and is transported to the seedling transplanter side. Moreover, the seedling contact roller 32 contacts the front surface of the second seedling row Q2, and represses this toward the third seedling row.

After the separated first seedling row Q1 is released and the seedling separation portion F and the like are returned to the initial position, the insertion pin 19 of the separation preventing means E is moved to the lower end of the second seedling row Q2. Then, the supply conveyor C is driven again. As a result, the second seedling row Q2 until then becomes the first first seedling row Q1, the seedling row that was the third row until then becomes the second seedling row, and becomes the seedling row separating mechanism B. Moved towards.

FIG. 1 shows a modified example of the seedling row separating section.
This will be described with reference to FIG. The same components as those described in the above embodiment are designated by the same reference numerals and the description thereof will be omitted.

In this seedling row separating section F, the seedling separating plate 22 is
The rotating shaft 49 attached to the back surface 22b of the upper end 22a.
It can be tilted around, and its back side 2
A drive rod 50a of a hydraulic cylinder 50 is attached to 2b via an attachment piece 51.

That is, in the above embodiment, the seedling separating plate 22 is used.
Is tilted about the support shaft 39, whereas the present modification is tilted about a rotation shaft 49 fixed to the back surface 22b of the upper end 22a of the seedling separating plate 22.

In such a structure, when the drive rod 50a of the hydraulic cylinder 50 is driven to expand and contract, the seedling separating plate 22 is
, But tilts around the rotation shaft 49 of the upper end portion 22a. That is, in this modified example, the rotary shaft 49 has the first seedling row Q.
It will be a fulcrum for bending 1.

As a result, the lower side of each seedling is gradually bent from the rotary shaft 49 serving as a fulcrum by the seedling separating needle 47 inserted into the lower portion of each seedling forming the first seedling row Q1 to form the second seedling row. Can be partially peeled off, and then the remaining upper side thereof can be peeled off gradually to completely separate.

The present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the invention.

In the above-mentioned embodiment, when the first seedling row Q1 is separated by the seedling separating needle 47, the lower end portion of the second seedling row Q2 is supported by the separation preventing means E, but it is not always provided. No need.

In the above embodiment, when the first seedling row Q1 is separated by the seedling separating needle 47, the upper end portion of the seedling row Q1 is suppressed by the fall prevention means G, but it is not always necessary to provide it. Absent.

In the above-mentioned embodiment, the seedling separating plate 22 is brought into contact with the first seedling row Q1 and the lower side of the seedling row Q1 is bent with the upper end 22a as a fulcrum. Instead of the separating plate 22, a columnar member as a bending member is arranged at a position serving as a fulcrum for bending, and the first seedling row is bent and peeled off using the columnar member as a fulcrum. Good.

The state in which the seedlings are erected with the seeding end part on the upper side means that the seedlings are placed on a horizontally arranged supply conveyor, that is, the seedlings are aligned in the gravitational direction, as shown in the above embodiment. It is not limited to. For example, as in the case where a group of connected seedlings is placed on a supply conveyor that is arranged slightly inclined, each seedling also includes an inclined posture that does not match the direction of gravity.

[0068]

According to the present invention, the following effects can be obtained. Since the seedlings are separated from the bottom, the leaves of the seedlings are not damaged even when the separation is performed. Also,
When the first seedling row is peeled off, the leaves of the second seedling row are not stabbed, and thus the second seedling row is not peeled off.

Unlike the conventional case where the seedlings are peeled off all at once over the entire length, the seedlings can be peeled off without damaging the seedlings with a small peeling force. Further, when the lower side of the seedling is peeled off, the upper side thereof is fixed to the second seedling row, so that the peeling operation can be performed in a stable state.

Furthermore, since a small peeling force is sufficient, the first
Even in an unstable state in which only a few seedling rows remain in the rear row of the seedling, the seedlings in the rear row can be prevented from being pulled down by the peeling operation, and the work efficiency can be improved.

By inserting the seedling separating needle into individual seedlings and peeling them off in a row of seedlings, the seedlings can be reliably separated in a short time regardless of variations in the size of the seedlings.

According to the invention described in claim 7, in addition to the above effects, even if a large peeling force acts on a seedling row adjacent to the frontmost seedling row, it can be prevented from being pulled down by it.

According to the invention described in claim 8, in addition to the above effects, when the frontmost seedling row is peeled off, peeling of the lower end portion of the seedling row adjacent thereto can be reliably prevented, so that it is possible to separate each seedling row. The certainty of can be improved.

[Brief description of drawings]

FIG. 1 is a side view of a seedling transplanter equipped with a seedling row separating device for a connected seedling group of the present invention.

FIG. 2 is an enlarged side view of the seedling separation device of the present invention.

FIG. 3 is a front view including a partial cross section thereof.

FIG. 4 is a partial side view showing details of a seedling row separating unit.

FIG. 5 is a partial cross-sectional view showing a state where the frontmost seedling row is in contact with the seedling row separating section.

FIG. 6 is a partial cross-sectional view showing a state where the seedling separation needle of the seedling separation section is inserted into the frontmost seedling row.

FIG. 7 is a partial cross-sectional view showing a state where the seedling row separating section is tilted and the lower side of the frontmost seedling row is being peeled off.

FIG. 8 is a partial cross-sectional view showing a state in which the seedling row separating portion is further tilted and the lower side of the frontmost seedling row is peeled off.

FIG. 9 is a partial cross-sectional view showing a state in which the foremost seedling row is almost completely separated by further moving the seedling row separating section.

FIG. 10 is a partial cross-sectional view showing a state in which the seedling row separating unit is further moved to move the frontmost seedling row to the release position.

FIG. 11 is a partial side view showing a modified example of a seedling row separating unit.

FIG. 12 is a side view showing a main part of a conventional seedling separating device for a connected seedling group.

[Explanation of symbols]

22 Seedling separation plate as a folding member 47 seedling separating needle B Seedling separation mechanism C supply conveyor D carry-out conveyor E Peeling prevention means F Seedling separation section as the first peeling means G Peeling mechanism as second peeling means H fall prevention means Q consolidated seedlings Q1 Front row (first row) Q2 Nursery row adjacent to the front row (second row)

Claims (8)

(57) [Claims] 1. A method for separating a seedling row of a connected seedling group, wherein the frontmost seedling row of the connected seedling group, which is made upright with the seedling end of the seedling standing upside, is separated from the seedling row adjacent to the seedling row. First, the lower side of each seedling forming the front row of seedlings is gradually bent and partially peeled off, and then the remaining upper side of them is gradually peeled off to completely separate them. Seedling separation method. 2. A method for separating a seedling row of a connected seedling group in which the frontmost seedling row of the connected seedling group, which is formed by standing the seedling end of the seedling upward, is separated from the seedling row adjacent to the seedling row. A fulcrum for bending is set in front of the foremost row of seedlings above, and the fulcrum for bending of each foremost row of seedlings is first bent gradually at the lower side and partially peeled off, then those A method for separating a seedling row of a connected seedling group, which comprises gradually peeling off the remaining upper part to completely separate the seedlings. 3. A method for separating a seedling row of a connected seedling group, wherein the frontmost seedling row of the connected seedling group, which is formed by standing the seedling end of the seedling upward, is separated from the adjacent seedling row to separate the seedling row. The fulcrum for bending is set on the front of the foremost row of seedlings, and the seedling separating needle inserted into the lower part of each seedling that makes up the foremost row of seedlings allows the first lower side of each seedling from the fulcrum for folding. A method for separating a seedling row of a connected seedling group, which comprises gradually bending and partially peeling them off, and then gradually peeling off the remaining upper side thereof to completely separate them. 4. A seedling row separating device for a connected seedling group, which separates a frontmost seedling row of a connected seedling group standing upright with the seedling end of the seedling as an upper side, and separating the seedling row adjacent to this. A first peeling means for gradually bending and partially peeling the lower side of each seedling forming the front row of seedlings, and a second peeling means for gradually peeling the remaining upper side of these seedlings for complete separation A seedling row separating device for a group of connected seedlings, comprising: a peeling means. 5. A seedling row separating device for a group of connected seedlings, wherein the frontmost seedling row of the seedling group standing upright with the seedling end of the seedling standing upside is separated from the seedling row adjacent thereto to separate the seedling row. A bending member that comes into contact with the front surface of the front row of seedlings, and a first peeling means that gradually bends the lower side of each seedling in the front row of seedlings using this bending member as a fulcrum to partially peel off the seedling row. And a second peeling means for gradually peeling the remaining upper side of each of the seedlings to completely separate the seedlings. 6. A seedling row separating device for a group of connected seedlings, wherein the frontmost seedling row of the seedling group standing upright with the seedling end of the seedling standing upside is separated from the seedling row adjacent thereto to separate. The folding member that comes into contact with the front surface of the front row of seedlings and the seedling separating needle inserted into the bottom of each seedling that makes up that row of seedlings are used as the fulcrum for the lower side of each seedling in the front row of seedlings. First peeling means for gradually bending and moving so as to partially peel, and second for moving the seedling separating needle so that the remaining upper side of each seedling is gradually peeled and completely separated. A seedling row separating device for a group of connected seedlings. 7. At least from the start of peeling of the foremost seedling row to the end thereof, the upper side of the foremost seedling row is urged toward the adjacent seedling row so that the adjacent seedling row 7. A seedling row separating device for a group of connected seedlings according to claim 4, 5 or 6, further comprising fall prevention means for preventing fall. 8. A peeling prevention means for preventing peeling of a lower end portion of a seedling row adjacent to the frontmost seedling row from a seedling row adjacent to the frontmost seedling row at least from the start of peeling of the front seedling row to the end thereof. A seedling row separating device for a group of connected seedlings according to claim 4, 5, 6 or 7.