JPH02171102A - Receiving mechanism for taped seedlings - Google Patents

Abstract

PURPOSE:To inhibit the disturbance in the posture of tape seedlings to the box by lifting only the bottom bearing the tape seedlings in the seedling box. CONSTITUTION:For example, rice plant seedlings are arranged in parallel widthwise along the tapes 5A and 5B and put between tapes 5A and 58 into a seedling bundle (a). The seedling tape is folded up in zigzag into the seedling box 1 which is constituted with the peripheral walls 1C and bottom wall 1A. The bottom wall 1A is lifted or descended in the range from the position corresponding to the top edge down to the bottom edge of the peripheral wall 1C by means of a lift mechanism 8 so that the seedling tape are piled up in the box, as the height from the tape feed position to the tape level in the box 1 is kept definite.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention stores tape seedlings formed by attaching bundles of crop seedlings at predetermined intervals in the longitudinal direction of the tape in a zigzag manner in a vertically overlapping state. The present invention relates to a storage mechanism of a tape seedling production device which is provided with a seedling storage section.

[Conventional technology]

The storage mechanism of this type of tape seedling making device is such that the seedling storage section, which is made up of a bottom wall and a surrounding wall that receive tape seedlings, can be raised and lowered as a whole. The taped seedlings are lowered away from the seedling supply site, and the height between the tape seedling supply site and the tape seedling placement surface of the seedling storage section is always kept constant, thereby reducing disturbance of the tape seedlings.

[Problem to be solved by the invention]

However, in this case as well, the side wall of the seedling storage section moves up and down as a unit, so the seedling storage section can only approach the position where the upper end of the side wall reaches the tape seedling supply area.
At least the vertical distance between the tape receiving surface of the seedling storage section that receives the tape seedlings and the tape seedling supply section is greater than or equal to the height of the peripheral wall of the seedling storage section. In this case, the distance between the tape seedling supply area and the tape placement surface of the seedling storage section increases, so
The storage posture of the tape seedlings that hang down from the tape seedling supply section and are thrown into the seedling storage section may be disturbed. In other words, the tape seedlings are constructed by attaching a bunch of crop seedlings to the tape, with roots with a large volume on one side and stem tips with a small volume on the other side. There are problems in that the seedlings tend to be twisted, the stored posture is disordered, and when the stored seedlings are brought out at the time of planting, the seedlings get entangled with each other and damage the seedlings.

SUMMARY OF THE INVENTION An object of the present invention is to provide a device that can suppress the posture of seedlings attached to the seedling storage section by tape.

[Means to solve the problem]

The characteristic structure of the present invention is that: (1) the seedling storage section is composed of a peripheral wall and a bottom wall that receives the tape seedlings, and (2) the bottom wall is relatively raised and lowered from a position corresponding to the lower end of the peripheral wall to a position corresponding to the lower end. The functions and effects are as follows.

[Function] In other words, by raising and lowering only the bottom wall that receives the tape seedlings in the seedling storage section, the tape seedlings are kept constant at a constant height from the tape seedling supply section to the tape seedling placement surface of the seedling storage section. In addition to being able to store the seedlings, the bottom wall can be relatively raised to a position equivalent to the lower end of the peripheral wall, compared to conventional seedling storage units in which the peripheral wall and bottom wall are raised and lowered as one. The distance to the tape seedling placement surface on the storage section side can be reduced.

〔Effect of the invention〕

Therefore, it has the advantage that the height from the tape seedling supply section to the tape seedling placement surface of the seedling storage section can always be kept constant, and furthermore, the distance between the tape seedling supply section and the tape seedling placement surface can be reduced. .

Therefore, it is possible to reduce the chance that the tape seedlings hanging from the tape seedling supply section to the seedling storage section are twisted, and even if twisting occurs, the amount of twisting is small due to the short hanging interval. It is possible to suppress entanglement of seedlings in the storage section.

〔Example〕

As shown in Fig. 1, the tape seedling making device produces block-shaped seedlings <a) of crop seedlings divided into individual plants by an operator.
a feeding device (2) that forms tape seedlings into tape seedlings and supplies them to a tape seedling storage case (1) serving as a seedling storage section;
2) Tape seedling storage case that moves up and down (1)
It consists of and is used for planting straw grass, rye, etc.

As shown in FIG. 1, the supply device (2) is located between a pair of left and right synchronous belt conveyors (3), (3) and a pair of left and right belt conveyors (3), (3). The lower continuous tape (5A) moves while supporting the block-shaped seedling (a), and the lower continuous tape (5A) overlaps with the lower continuous tape (5A) at the end position of the belt conveyor (3), (3) to sandwich the block-shaped seedling (a). lower continuous tape (5B), double continuous tape (5A),
A route switching roll (4A) that lifts (5B) upward and switches the route downward; and a route switching roll (4A) that is located above this route switching roll (4A) and cooperates with this roll (4A) to produce adjacent crop seedlings. It consists of a presser roll (4B) that vertically presses both tape parts located between the bundles.

A pair of large and small disk cutters (7B) act on the stem tips of the seedlings to trim the length of the seedlings on the stem tip side of the seedlings being conveyed at an intermediate position between the belt conveyors <3) and (3).

(7B) and the belt conveyor (3).

A support rod (6) extends in a cantilevered manner toward the path switching roll (4A) from the switching portion to the reversal path (3), and the cantilever support rod (6) allows the belt conveyor (3) to (
3) A structure is adopted to support the roots of seedlings that are further apart to avoid problems such as getting caught in the belt conveyor (3) and being cut.

Further, protrusions (4a) are provided on the stem tip side of the route switching roll (4A), and the protrusions (4a) are arranged at the same interval as the interval between the crop seedling bundles (a) held between the tapes (5A) and (5B), Holding the stem end side of the crop seedling bundle (a) between these adjacent protrusions (4a),
When this crop seedling bundle (a) is pressed down by the presser roll (4B), the stem tip part spreads and the stem tip sides of adjacent crop seedlings (a) can be prevented from becoming entangled.

Lateral movement of the storage case (1) will be explained. The storage case (1) has a bottom plate (1A) attached to the vertical support frame (9) so as to be movable up and down,
This support frame (9) is attached to a moving table (lO) so that it can be moved laterally.

As shown in Figures 1 and 3, this moving platform (10) is supported by left and right guides (11), (11) and slides, and can be moved laterally by a horizontal chain (12). Driven. The horizontally rotating chain (12) and the movable table (10) are interlocked by engaging the chain (12) with an interlocking pin (14) extending from the movable table (lO). In the figure (13) is a chain (
12) It is a driving motor.

Next, the bottom wall (1A) of the storage case (1) is attached to the peripheral wall (1C).
) will be described. As shown in FIGS. 5() and (0), the vertical movement mechanism (8) includes a rack (16) in a vertical position formed on the support frame (9) and a rack (16) in a vertical position formed on the support frame (9), and the storage case (1). Bottom wall (
A movable frame (17) that moves up and down with respect to the support frame (9) integrally with the movable frame (1A);
) and engaged with the rack (16); and a bracket (19) supported to be vertically swingable at the axial center position of the pinion (18).
and an engagement piece (20) which is supported by the bracket (19) so as to be able to swing up and down and whose distal end protrusion is urged to engage with the pinion (18), and the engagement piece (20) is supported by the bracket (19) so as to be able to swing up and down, and the engagement piece (20) whose distal end protrusion is urged to engage with the pinion (18), Check claw (21) that prevents the bottom wall (1A) from moving downward
and an operating arm (24) which is pivotally supported by the movable frame (17) so as to be able to swing up and down and is connected to the bracket (19) via a connecting arm (23). On the other hand, the swing plate (6), which is attached to the body frame and is in a fixed state relative to the horizontal movement table (lO), is configured to be able to swing horizontally around the vertical axis (Y). This rocking plate (6) is
As shown in FIG. 4(A) and (σ), the operating arm (24) is neutrally biased by a pair of left and right strong and weak tension springs (15A) and (15B), and as shown in FIG. )
When it moves and makes contact, it swings while providing movement resistance to the operating arm (24) by the biasing force of the weak tension spring (15A), and at the same time, the operating arm (24) passes through the limit position. In this state, the operating arm (24) is swung upward as shown in FIG. 5(a). Then, when the lateral movement table (lO) reverses and starts moving away from the rocking plate (6), the operating arm (24) comes into contact again and moves the rocking plate (6) to the second position. As shown in Figure 4 (b), it is swung in the opposite direction, but at this time a strong tension spring (15
The operating arm (24) receives backward resistance due to the urging force B) and swings downward. Then, near the limit of the swing plate (6), the operating arm (24) slips through the swing plate (6) and moves away.

Moreover, the tape seedling storage case (1) is attached to the moving table (10).
The outer case (IB) fixed to the outer case (IB) and this outer case (I
It is composed of an interior case (1C) as a case peripheral wall that is placed on and can be taken out from the interior case (1C), and a bottom wall (1A) that is movable up and down relative to this interior case (1C). ) A guide pin (25) is provided protruding from the lower surface. This guide pin (25) has its tip attached to the outer case (
IB) and the guide case (26) of the movable table (10) and are held in engagement therewith, and are urged upward by a compression spring (27). That is, the bottom wall (1A) of the tape seedling storage case (1) is supported at both ends by the support frame (9) and the compression spring (27).

To explain the movement of the above configuration, ■ As shown in Figure 4 (B), the storage case (1)
When the operation arm (24) comes into contact with the rocking plate (6) and moves away from the state where it has reached one lateral movement end, the operation arm (24) comes into contact with the swing plate (6), and the tension force of the tension spring (15B) causes the operation arm (24) to move downward. The operating arm (24) is rotated, and the connecting arm (
23), the bracket (19) is rotated downward.

■ Then, the engagement piece (20) attached to the bracket (19) rotates the pinion (18) in a state where it is engaged with the storage case (1).
) is lowered by a predetermined amount.

■ Before reaching this state, the movable table (10) moves the swing plate (
6), the operating arm (24) is oscillated upward by the tensile force of the tension spring (15A), as shown in FIG. 19) is also driven to swing in the same direction.

(2) Then, the engaging piece (20), like a ratchet pawl, rides over both sides of the pinion (18) and rotates in the same direction as the bracket (19). At this time, since the pinion (18) is not rotating, the storage case (1) does not move downward.

As described above, even if the bottom wall (1C) of the storage case (1) is lowered by a predetermined amount and the tape seedlings to be stored in a zigzag manner are piled up high, the tape seedling supply device (2) will not be able to reach the storage case. (1) The descending height of the tape seedlings to the bottom wall (1A) can always be kept constant.

When a predetermined amount is stored, the bottom wall (1A) is supported on the bottom surface of the interior case (1C), so if you lift the peripheral wall as the interior case (1C), the exterior case (IB) will open.
It can be taken out more. The outer case (IB) and the inner case (Ic) as a peripheral wall are made of transparent resin.

[Another example]

(2) An actuator such as a hydraulic cylinder may be used as the mechanism (8) for raising and lowering the bottom wall (1A).

(2) A configuration may be adopted in which the tape is attached to a single tape (5A) via an adhesive.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the storage mechanism of the tape seedling making device according to the present invention, and FIG. 1 is an overall side view of the tape seedling making device, FIG. 2 is a plan view showing the belt conveyor, and FIG. 3 is an overall longitudinal cross-sectional view of the back. Figure, Figure 4 (a). (B) is a plan view showing the operating state of the rocking plate and the operating arm, and FIGS. 5() and (D) are side views showing the vertical movement mechanism, respectively. (1)・... Seedling storage section, (1A) ... Bottom wall, (Ic) ... Peripheral wall, (5A or 5B) ...
...Tape, (8) ...Mechanism for raising and lowering,
(a)・・・・・・Bundle of crop seedlings.

Claims (1)

[Claims] Tape seedlings formed by attaching crop seedling bundles (a) at predetermined intervals in the longitudinal direction of the tape (5A or 5B) with the culms along the width direction of the tape (5A or 5B) are placed vertically. The seedling storage section (1
) is provided, and this seedling storage section (1) is connected to the surrounding wall (1C).
and a bottom wall (1A) for receiving tape seedlings, and has a mechanism (8) for relatively raising and lowering the bottom wall (1A) from a position corresponding to the upper end of the peripheral wall (1C) to a position corresponding to the lower end. Storage mechanism for the tape seedling creation device.