JPH0640176Y2 - Nursery box stacking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a seedling raising box stacking device.

[Conventional technology]

Conventionally, mat-like seedlings used for work in rice transplanters are treated by supplying bed soil to a nursery box of approximately the same size as this mat-like seedling, performing seeding, and then budding this. After being made to grow, it is obtained by growing and greening.

In addition, recently, in order to produce a large amount of mat-like seedlings, plants have been developed that can consistently perform the processes from seeding treatment to greening.

(No reference is given.) [Problems to be solved by the invention] Here, in order to consider a plant that consistently carries out the process from seeding treatment to greening, the plant should be placed in a horizontal posture after the seeding treatment. If it is composed of a lift mechanism that lifts it upward as it is and a lateral feed mechanism that feeds the nursery box lifted by this lift mechanism to the stacking position in a horizontal position, the nursery box must stop exactly at the stacking position. Is desirable.

However, the commercially available nursery boxes have slightly different dimensions depending on the manufacturer, and in the above-mentioned plant, the nursery boxes of different sizes are often used in a mixed state.

Further, for example, in the transverse feed mechanism described above, a pair of sprockets that rotate about a horizontal axis are arranged with a feed stalk interval, and a chain wound around the sprockets is provided with a locking piece so that when driving the chain. When the locking piece is brought into contact with the nursery box and fed in the lateral direction, the level of the sprocket is lowered by rotating the outer circumference of the sprocket when the locking piece reaches the feeding position. , The posture changes in a form in which the locking piece swings around the axis of the sprocket. This phenomenon also occurs when the locking piece reaches the stop position, and the locking piece rocks around the sprocket shaft center due to the movement of the level of the locking piece increasing at this stop position. The posture changes in a moving form.

When feeding the nursery boxes with different dimensions as described above, due to the transverse feed mechanism with the structure in which the swinging posture of the locking piece changes during operation in this way, it is caused by the difference in the dimension in the height direction of the nursery boxes. hand,
The abutment position between the locking piece and the nursery box is not fixed, not only does the feed start timing advance, the feed stokes become over-fed, etc., but pressure is applied downward at the start of the feed. At the end of the transportation, an unexpected force such as a force acting upward causes an inconvenience that the posture of the nursery box is deviated from a predetermined posture.

In this way, when the feeding stroke of the nursery box is distorted, or when the nursery box is out of the predetermined posture, it may be moved between the lift mechanism and the lateral feed mechanism or between the lateral feed mechanism and the stacking mechanism. Delivery of nursery boxes was not carried out smoothly,
Not only the stacking is not performed properly, but also the phenomenon that the nursery boxes are clogged in the plant may cause the operation of the entire plant to be stopped, and therefore improvement is desired.

Since this type of plant is configured to process a large number of nursery boxes in a short period of time, the number of processes will be significantly reduced when the operation of the plant is stopped, and improvement in efficiency is also desired. ing.

The purpose of the present invention is to reasonably provide a seedling raising box stacking device which does not lead to inconvenience such as operation stoppage of the entire plant by appropriately stacking even when seedling raising boxes having different sizes in the height direction are mixedly used. There is a point in configuring.

[Means for Solving the Problems]

The features of the present invention are a lift mechanism that holds the seedling raising box after sowing treatment in a shelf shape in a substantially horizontal posture and lifts it upward, and sends the seedling raising box lifted by this lift mechanism to the stacking work position in a substantially horizontal posture. It is composed of a lateral feed mechanism and an elevator mechanism that receives the nursery boxes sent one by one to the stacking work position by this lateral feed mechanism and sends them downward while keeping the stacked state, and the lateral feed mechanism is endlessly rotated. The belt is provided with a plurality of locking pieces that come into contact with the nursery box in a state in which they cannot relatively swing with respect to the endless rotation belt, and the transportation start position of these locking pieces at the time of lateral feeding and the transportation. The stop position is set in the straight line path for feeding the nursery box, and the nursery box is sent from the lift mechanism with the locking piece stopped, so that the locking piece will stop when the nursery box is delivered to the elevator mechanism. The point that the rotation band is configured to be an intermittent drive type Its action, and the effects are then street.

[Action]

According to the above feature, at the timing when the locking piece of the endless rotation belt stops, the seedling raising box lifted by the lift mechanism is sent to the transport start position, and the seedling raising box also has the locking piece driven by the endless rotation belt. It will be sent to the stacking position by contact with, and at this position it will be delivered to the elevator mechanism with the endless rotation band stopped, so compared with the one that always drives the endless rotation band The posture of the nursery box is less disturbed at the time, and the locking piece moves along the straight path in the state without any posture disorder with respect to the endless rotation band at the time of lateral feeding, so it is locked at the time of transportation of the lateral feeding mechanism. The posture of one piece does not change, and the nursery box is sent from a predetermined transport start position to a predetermined stacking position without being affected by the size of the nursery box in the height direction.

Furthermore, since the locking piece moves along a straight line path during this transportation, pressure from above or unexpected force such as lifting force does not act on the nursery box, and stacking is performed at the position of the elevator mechanism. Since the seedling raising box is configured such that the elevator mechanism moves downward, the stacking process can be continued without requiring a large head.

In other words, according to the present invention, the lateral feed mechanism is carried by the intermittent drive, and the carrying is carried out only by the straight path which does not change the posture of the locking piece. Even if the dimension in the height direction is not constant, it is difficult to cause excessive feeding and disturbance of posture.

[Effect of device]

Therefore, even when seedling raising boxes with different dimensions in the height direction are used together, it is rational to provide a seedling raising box stacking device that performs stacking smoothly and properly and does not lead to inconvenience such as stoppage of operation of the entire plant. It was configured into.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a lift mechanism (A) for horizontally lifting the seedling raising boxes (1) one by one from a belt conveyor (2) that sends the seedling raising boxes (1) after the seeding treatment, and this lift mechanism (A). ), A horizontal feed mechanism (B) for horizontally feeding the nursery box (1) and both sides for dropping the nursery box (1) fed to the stacking work position by the horizontal feed mechanism (B) downward. Opening and closing rack mechanism (C) that opens and closes toward you
And an elevator mechanism (D) that supports the seedling raising boxes (1) from the opening / closing shelf mechanism (C) one by one in a stacked state and descends to form a seedling raising box stacking device.

As shown in FIG. 2 and FIG. 2, the lift mechanism (A) is an endless chain wound around upper and lower sprockets (3) and (4) and having a large number of locking members (5). 6)
One at a position where the belt conveyor (2) is sandwiched from both sides, and when the seedling raising box (1) reaches a position where it can be lifted by the lift mechanism (A), both endless chains ( 6) and (6) are driven by an amount equal to the vertical distance between the locking members (5), ..., and the seedling raising box (1) is lifted upward.

The transverse feed mechanism (B) has two sprockets (7),
The lift mechanism (A) is formed by attaching two locking pieces (9) and (9) to an endless chain (8) wound around (7).
The seedling raising box (1) reaching the upper end of is fed laterally by abutment of the locking pieces (9).

As shown in FIGS. 1 and 3, the open / close shelf mechanism (C) includes swing members (10) and (10) for receiving and supporting the lower surface of the seedling raising box (1) from both sides, and this swing member ( Crank mechanism (1) for swinging arm (11), (11) from (10), (10)
2) Made of and.

As shown in FIG. 1, the locking piece (9) of the transverse feed mechanism (B),
The space where (9) contacts the nursery box (1) is called a straight path (R) for feeding the nursery box, and the elevator mechanism (D) is used.
Is to set the axis of rotation in a direction orthogonal to the virtual path (S) obtained by extending the straight path (R), and to arrange it on the upper side and the lower side of the virtual path (S). Two sets of upper and lower sprockets (13), (14), (15), (1
6) First and second endless rotation bands (17) and (1
8) and locking tools (19) and (19) attached to the first and second endless rotation bands (17) and (18), respectively, and the upper end of the second endless rotation band (18). The level is set higher than the upper end level of the first endless rotation band (17), and the overhang portion (18a) is formed at the level intersecting with the virtual path (S).

Also, the nursery box (1) for the overhang part (18a)
Is set to the stacking work position of the nursery box (1), and the nursery box (1) fed by the transverse feed mechanism (B) is in the straight path (R) as shown in FIG. The stacking work position is set by abutting on the locking piece (9) positioned at and also abutting on the overhang portion (18a).

When the nursery box (1) reaches the stacking work position in this way, the operation of the lateral feed mechanism (B) is temporarily stopped, and subsequently the nursery box (1) is dropped by the operation of the open / close shelf mechanism (C). Then, it is received and supported by the locking pieces (19) and (19), and then similarly the seedling raising box (1) is sequentially dropped and supplied, and at the same time as this drop, the first and second endless rotation bands (17) are provided. ), (18) are driven by the thickness of the nursery box (1) to perform a stacking process, and immediately after the nursery box (1) drops, the locking piece (9) of the transverse feed mechanism (B). , (9) are driven to the position shown by the phantom line in FIG.

Further, when the number of the nursery boxes (1) ... that have been stacked in this way reaches a predetermined number, the carrier carts (20) set below
The first and second endless rotation bands (17), (1
The control system is configured to drive 8).

In addition, a belt conveyor (2), a lift mechanism (A), a lateral feed mechanism (B), an opening / closing shelf mechanism (C), an elevator mechanism (D).
The electric motors (M ₁ ), (M ₂ ), (M ₃ ), (M ₄ ),
The system is configured to be driven independently by (M ₅ ).

[Another embodiment]

In addition to the above embodiment, the present invention winds an endless chain comprising, for example, three or more sprockets and three or more locking pieces, and the locking pieces feed the nursery boxes to the stacking work position and stop. In this state, the transverse feed mechanism can be configured so that the next locking piece is close to the position where it can abut the next nursery box, and the transverse feed mechanism is stacked on top of the lift mechanism. Two or more nursery boxes that are

Further, the present invention can be implemented by forming an opening for dropping the seedling raising box without providing an opening / closing shelf mechanism.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a nursery box stacking device according to the present invention,
FIG. 1 is a schematic view showing the structure of the stacking device, FIG. 2 is a sectional view showing the structure of a lift mechanism, and FIG. 3 is a view showing the operating structure of the open / close shelf mechanism. (1) …… Raising seedling box, (8) …… Endless swivel belt, (9) ……
Locking piece, (A) ... lift mechanism, (B) ... transverse feed mechanism, (D) ... elevator mechanism, (R) ... linear path.

Claims (1)

[Scope of utility model registration request] 1. A lift mechanism (A) for holding a seedling-raising box (1) after sowing treatment in a shelf shape in a substantially horizontal posture and lifting it upward.
A lateral feed mechanism (B) that feeds the nursery box (1) lifted by the lift mechanism (A) to the stacking work position in a substantially horizontal posture, and a nursery seedling sent to the stacking work position by the horizontal feed mechanism (B). It is composed of an elevator mechanism (D) that receives the boxes (1) one by one and sends them downward in a stacked state, and the lateral feed mechanism (B) is used as an endless rotation zone (8) for the nursery box (1). ) Is engaged with the locking piece (9), and the endless rotation band (8)
And a plurality of them are provided in a state in which they cannot relatively swing, and
A straight path (R) for feeding the seedling raising box is used to set the transport start position and the transport stop position when the locking pieces (9) and (9) are laterally fed.
When the seedling-raising box (1) is sent from the lift mechanism (A) with the locking piece (9) stopped, the locking piece (1) is delivered to the elevator mechanism (D). The seedling raising box stacking device, wherein the endless rotation band (8) is configured to be intermittently driven so that 9) stops.