JPH0481411B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a seedling box separation and removal device.

[Conventional technology]

Generally, as a means to obtain a pine state for use in planting seedlings with a rice transplanter, seedling boxes are stacked after seeding, and the seedlings are allowed to germinate under a specified humidity and temperature environment. Some methods are used to raise seedlings after they have sprouted by separating the seedling boxes and stacking them on greening shelves. Conventionally, separating the stacked seedling boxes required close to manual work. It is being said.

[Problem that the invention seeks to solve]

However, when considering the case of mechanizing the work from seeding to greening and processing large quantities, it is necessary to send stacked empty seedling boxes to the seeding process.
Alternatively, in order to send the stacked seedling boxes after germination to the greening shelf, it is expected that a mechanism or the like will be required to separate and take out the stacked seedling boxes.

Therefore, for example, a rocking switching structure is used that locks the seedling box by setting it to a supporting position facing in a substantially horizontal direction, and releases the locking of the seedling growing box by setting it to a releasing position facing downward. It is conceivable to configure a mechanism to support the second from the lower end of the stacked seedling growing boxes with a stopper member, move the lower end seedling growing box downward to separate it, and take out the seedling growing box. In this type of system in which the seedling box is engaged and detached by the swinging motion of the locking member, the locking with the seedling box is released by simply setting the locking member to the release position. In such a case, when the lock is released, the entire stack of seedling boxes will fall by the thickness of one seedling box, which will not only cause a shock but also damage the locking member and the seedling box. There is room for improvement.

An object of the present invention is to provide a seedling box separation and removal device that suppresses the impact on the seedling box and does not easily damage the seedling box etc. with a rational configuration.

[Means for solving problems]

The present invention is characterized by a lifting mechanism capable of lifting and lowering the entire stacked seedling box through the seedlings at the lower end of the stacked seedling box, and from at least the lower end of the stacked seedling box lifted by the lifting mechanism. A holding mechanism that supports the second seedling box to maintain the level, and a sending mechanism that sends out the separated seedlings at the bottom end of the growing box by lowering the lifting mechanism after the holding mechanism supports the seedling growing box. At the same time, the holding mechanism locks the seedling growing box by being set in a supporting position facing in a substantially horizontal direction, and releases the locking of the seedling growing box by setting it in a releasing position facing downward. It is constructed by disposing locking members with a swinging switching structure on both sides of the seedling-growing box, and sets the first-half locking members to the supporting position almost at the same time when the elevating mechanism reaches its lifting limit while supporting the seedling-growing box, and,
The present invention is characterized in that an interlocking mechanism is formed between the lifting mechanism and the holding mechanism to set the locking member to the released position almost at the same time when the lifting mechanism reaches its lifting limit without supporting the seedling box. The actions and effects are as follows.

[Effect]

If the above characteristics are configured as shown in FIGS. 1 to 3, for example, at the timing when the locking members 22, 22 are engaged with and disengaged from the seedling raising box 1, as shown in the graph of FIG. lift table 1
4a is set to a level that supports the seedling raising box 1.

In other words, the locking members 22, 22 support the seedling growing box 1 after the seedling growing box 1 reaches a predetermined level,
Moreover, after the seedling raising box 1 at the lower end is taken out, the lifting table 14a, which is an example of a lifting mechanism, supports the seedling raising box 1 supported by the locking members 22, 22, and then the locking members 22, 22 are removed. Since the release operation is performed, the seedling raising box 1 does not fall significantly when the locking members 22, 22 are released, and no excessive load is applied to the locked members of the seedling raising box 1 or the locking member 22. There will be no.

〔Effect of the invention〕

Therefore, by setting the operating timing of the lifting mechanism and the holding mechanism, it is difficult to apply shock to the seedling nursery box, and
A seedling box separation/removal device that does not easily damage the seedling box and the locking member was obtained.

In particular, in the present invention, the rising direction of the lifting mechanism is equal to the locking direction of the engaging member, and the lowering direction of the lifting mechanism is equal to the releasing direction of the engaging member.
There is no need to create a time difference such as performing the other operation after one operation is completed, and the operation of the lifting mechanism and the engaging member can be performed redundantly, thereby improving the operation efficiency.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 10, there is a feed conveyor 2 that transports 1 g of stacked seedling boxes, an elevator unit 3 that lowers the 1 g of seedling boxes from the feed conveyor 2 to a hanging level, and this elevator. A seedling growing box feeding unit A is formed with a seedling growing box feeding device 4 which takes out seedling growing boxes 1 one by one from a group of seedling growing boxes 1g from the unit 3 and sends them out laterally, and the seedling growing boxes 1 from the seedling growing box feeding unit A are first to move
A transport device 5, a soil supply device 6 that supplies soil to the seedling box 1, and an irrigation device 7 that sprinkles water on the soil.
A sowing processing section B is formed by a sowing device 8 that sows seed rice on the bed soil and a soil covering device 9 that adds soil to the seedling raising box 1 after sowing. 1, and a second transport device 10 that sends the seedling boxes 1 sent by the second transport device 10, and a stacking system in which the seedling boxes 1 sent by the second transport device 10 are continuously lifted up into a shelf shape, and are stacked on the transport cart 11 sequentially from the top lifted into the shelf shape. Device 1
2 form a seedling box stacking section C, and as shown in FIG. 11, the seedling growing boxes 1 stacked on the transport trolley 11 are sent together with the transport trolley 11, and the germination is maintained at a predetermined humidity and temperature. The transporting cart 11 taken out from the budding processing section D is loaded onto the transporting vehicle 13 and sent, and the seedling growing boxes 1 in a stacked state unloaded from the transporting cart 11 are loaded one by one. A seedling box separation and take-out device 14 takes out the seedling boxes 1, and a seedling box loading device that inserts the seedling boxes 1 sent from the seedling box separation and take-out device 14 into the greening seedling shelf 15 at once after setting and maintaining them at a predetermined vertical interval. 16 forms a seedling box transfer section E, into which the greening seedling rack 15 loaded with the seedling boxes 1 is sent, and forms a greening section F that is equipped with irrigation and lighting equipment to promote the growth of budding seedlings. Construct a seeding plant.

As shown in FIGS. 5 to 7, the seedling box transfer section E includes a support stand 17 on which the transport cart 11 from the transport vehicle 13 is transferred, and a seedling box on the transport cart 11 transferred to the support stand 17. 1..., a lifting mechanism 18 that sends out the seedling boxes 1 in a stacked state, a roller conveyor 19 that sends the seedling boxes 1 from the transfer mechanism 18 to the seedling box separation/takeout device 14, and a recovery system that collects the empty transport carts 11. As shown in FIGS. 1 to 3, the seedling box separation and takeout device 14 includes a stand 20, etc., and includes a lift table 14a, which is an example of a lifting mechanism that places stacked seedling boxes 1 and moves up and down. and a holding mechanism 14b that supports the second from the lower end of the seedling growing box 1 lifted by the lift table 14a, and separation by lowering the lift table 14a after the holding mechanism 14b supports the seedling growing box 1. It is composed of a sending mechanism 14c that sends out the lower end of the seedling growing box 1, and an interlocking mechanism 14d that operates the lift table 14a, the holding mechanism 14b, and the sending mechanism 14c in conjunction with each other.

Additionally, as shown in the figure, a lift table 14a
is provided with a plurality of idle rollers 21, and
The holding mechanism 14b locks the seedling growing box 1 when set in a supporting position facing in a substantially horizontal direction, and releases the locking of the seedling growing box 1 when set in a releasing position facing downward. Locking members 22, 22 having a switching structure are arranged on both sides of the seedling raising box 1, and are interlocked with each other via a chain 23.
4c is an endless chain type conveyor, and the interlocking mechanism 14d includes a first cam 24 that raises and lowers the lift table 14a, a second cam 25 that swings the locking members 22, 22, and a delivery mechanism 14c. A partial gear 26 is attached to the drive shaft 27, and a contact swinging piece 28a, gears 28b, 28b, and a rack gear 28c are used to convert the operating force from the first cam 24 into the direction of raising and lowering the lift table 14a. a first linking portion 28 and a second cam 25
contact swing piece 29a and gear 2 for converting the operating force from the locking members 22, 22 into a direction to swing
9b, and a third linking section 30 consisting of a large number of gears 30a for transmitting the intermittent power from the partial gear 26 to the delivery mechanism 14c. As shown in FIG.

In other words, the upper part of the graph shows the locking members 22, 2.
2, each of the locking members 22 and 22 completes locking by setting the swinging posture to 90 degrees,
Moreover, the cancellation is completed by setting it to 0 degrees.

Further, the middle stage of the graph shows the operation of the delivery mechanism 14c, which performs the delivery operation in the ON state and stops the delivery operation in the OFF state.

In addition, the lower part of the graph shows the operation of the lift table 14a, and after the lift table 14a has risen by about 10 mm, the locking operation of the locking members 22, 22 has been completed, and the lift table 14a has risen by about 50 mm. ,
The release operation of the locking members 22, 22 is completed.

Note that the rotation angle of the drive shaft 27 is set in the horizontal axis direction of the graph.

As shown in FIGS. 8 and 9, the seedling box loading device 16 is provided with a conveyor 16a for transporting the seedling boxes 1 from the seedling box separation/removal device 14, and is disposed on both sides of this conveyor 16a. The seedling box 1 rotates and is connected to a large number of locking pieces 31...
Two endless bands 16 that hold and lift up ... like a shelf
b, 16b, and a pusher 16c that sends a large number of seedling growing boxes 1 held like shelves on the endless bands 16b, 16b to the greening seedling growing shelf 15 all at once.

As shown in FIG. 6, one of the wheels 13a provided on the transport vehicle 13 is configured to be guided by a rail 32, and a seedling raising shelf 15 for greening is configured to be guided by a rail 32.
is configured to be sent to a predetermined position by an endless chain 33, and the transport cart 11 has an opening in the center to allow contact with the bottom surface of the seedling growing box 1 at the lower end when the lifting mechanism 18 of the elevating structure rises. It consists of a frame formed by

[Another example]

In addition to the embodiments described above, the present invention may also be configured such that, for example, the timing for completing the raising/lowering mechanism supporting the seedling box is set slightly before the locking member is set to the supporting position; If it is not supported, the timing of when the lifting mechanism completes raising is
It may be set slightly before the locking member is set to the released position.

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 seedling box separation and take-out device according to the present invention, FIG. 1 is a diagram showing the structure of the take-out device, FIG. 2 is a diagram showing the phases of the first and second cams and partial gears, Fig. 3 is a sectional view showing the positional relationship between the first and second cams and partial gears, Fig. 4 is a graph showing the operation timing of the locking member, conveyor, and lift table, and Fig. 5 is a cross-sectional view showing the positional relationship of the first and second cams and partial gears. Plan view showing the arrangement position of the take-out mechanism, No. 6
The figure is a diagram showing the positional relationship between the transport vehicle and the support stand.
Figure 8 shows the transport mechanism and roller conveyor.
The figure shows the take-out device and the seedling box loading device, FIG. 9 shows the endless belt of the seedling box loading device, FIG. 10 shows the process up to the stacking process of the seeding plant, and FIG. It is a figure which shows from a stacking process to a greening process. 1... Seedling box, 14a... Lifting mechanism, 14b...
...Holding mechanism, 14c... Delivery mechanism, 14d...
Interlocking mechanism, 22...locking member.

Claims (1)

[Claims] 1 Seedling growing boxes 1 in a stacked state via a seedling growing box 1 at the lower end of the stacked seedling growing boxes 1... A lifting mechanism 14a that can raise and lower the whole, and a stacked seedling growing box 1 lifted by the lifting mechanism 14a. a holding mechanism 14b that supports at least the second one from the lower end to maintain the level; and a holding mechanism 14b that supports the seedling growing box 1, and then separates the raising/lowering box 14a from the lower end by lowering the raising/lowering mechanism 14a. Sending mechanism 14c that sends out the seedling 1
At the same time, the holding mechanism 14b locks the seedling box 1 by being set in a supporting position facing in a substantially horizontal direction, and locks the seedling growing box 1 by being set in a releasing position facing downward. Locking members 22 with a rocking switching structure for releasing the locking are arranged on both sides of the seedling growing boxes 22..., and almost at the same time when the lifting mechanism 14a reaches its lifting limit while supporting the seedling growing boxes 1... To set the locking members 22, 22 in the supporting position and to set the locking members 22, 22 in the release position almost at the same time when the elevating mechanism 14a reaches its lifting limit in a state where the seedling raising box 1 is not supported. A seedling box separation/takeout device in which an interlocking mechanism 14d is formed between a lifting mechanism 14a and a holding mechanism 14b.