JP2010148429A - Feed shutter for soil feeder for raising seedling vessel and method for installing the shutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that the installment of the feed shutter for a soil feeder for a raising seedling vessel and the installment of a related operating dial have been troublesome. <P>SOLUTION: The soil feeder for a raising seedling vessel includes: a feed hopper 4 above a conveyance stand 3; unloading belt 6 beneath the feed hopper 4; a feed port 7 formed in between the feed hopper 4 and the unloading belt 6; and feed shutters 10 attached to the feed port 7. In the soil feeder, as to the feed shutters 10, the right and left side plates 15 are turnably fitted respectively through a transverse shaft 21 on the right and left side plates 23 of frames 22 fixed on the conveyance stand 3, and provided with arc-shaped gear grooves 30 with the transverse shaft 21 as the center, wherein the gear grooves 30 are engaged on a gear 31 fixed on an operating shaft 32 axially mounted on the side plates 23, and an operating dial 35 is fixedly installed on the operating shaft 32. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a supply shutter of a soil supply device for a seedling container and a method for attaching the supply shutter.

Conventionally, it comprises an upper supply hopper, a supply belt provided at the lower part of the supply hopper, a supply port formed between the supply hopper and the supply belt, and a supply shutter attached to the supply port. In such a configuration, both ends of the pivot shaft are pivotally supported on the left and right side walls of the supply hopper, and a base portion of a manual rotation lever for rotating the pivot shaft is fixed to the end portion of the pivot shaft. Yes (see Patent Document 1).
Conventionally, a configuration in which a square hole is opened in a shutter and a square axis is attached to the square hole without backlash is known (see Patent Document 1).
JP-A-5-49311 JP 2008-92865 A

Among the known examples, the former has a problem that the operation shaft and the square hole of the shutter rattle, and the accuracy of the operation of the supply shutter 10 is low.
Among the known examples, the latter eliminates the “rattling” between the operation angle axis and the shutter hole, but has a problem that the configuration is complicated.
In the present application, the “gap” in operation between the operation shaft and the shutter is reduced, and the configuration is simplified.

The present invention relates to an upper supply hopper 4 located above a transfer table 3 for transferring a seedling container, a feeding belt 6 provided below the supply hopper 4, and between the supply hopper 4 and the feeding belt 6. And a supply shutter 10 attached to the supply port 7. The supply shutter 10 has a lateral plate 15 fixed to the transfer table 3 and a lateral plate 23 fixed to the transfer table 3. Each of the left and right side plates 15 is rotatably attached by a shaft 21, and a gear groove 30 is formed in an arc shape with the horizontal shaft 21 as the center, and the side plate 23 is formed in the gear groove 30. The operation gear 32 is meshed with a fixed gear 31 and the operation dial 35 is fixedly attached to the operation shaft 32 to serve as a supply shutter for a seedling container soil supply device.
According to the present invention, the supply shutter 10 is formed with a bent portion 14 bent at a substantially right angle on the upper portion of a circular arc portion 12 having a substantially circular arc shape when viewed from the side, and the gear groove is formed on both left and right sides of the circular arc portion 12 and the bent portion 14. 30 is used as a supply shutter of the seedling container soil supply device in which the side plate 15 provided with 30 is integrally formed.
In the present invention, the gear 31 is used as a supply shutter of a soil supply device for a seedling container formed with a radius smaller than the radius of the gear groove 30.
In the present invention, between the left and right side plates 23 of the frame 22 of the upper supply hopper 4 that is located above the transfer table 3 for transferring the seedling container, it is bent at a substantially right angle to the upper portion of the arc portion 12 having a substantially arc shape when viewed from the side. The left and right side plates 15 of the supply shutter 10 in which the bent portion 14 is formed and the side plates 15 provided with the gear grooves 30 on the left and right sides of the arc portion 12 and the bent portion 14 are integrally formed are inserted. The horizontal shaft 21 is inserted into the insertion hole 20 and the supply shutter 10 is rotatably attached to the left and right side plates 23. Next, the gear 31 is engaged with the gear groove 30 of the supply shutter 10, and the operation shaft 32 of the gear 31 is engaged. This is a method for attaching a supply shutter of a soil supply device for a seedling container in which an operation dial 35 is attached to a portion protruding from the side plate 23.

In the first aspect of the present invention, the gear groove 30 is formed in one or both of the left and right side plates 15 of the supply shutter 10, and the gear 31 of the operation shaft 32 of the operation dial 35 is engaged with the gear groove 30. The side plate 15 is rotated without play by the horizontal shaft 21, and the gear 31 only rotates the side plate 15 about the horizontal shaft 21, so that operational play can be reduced and the supply shutter 10 has a gear groove. Since 30 is formed, the configuration can be simplified by reducing the number of parts, manufacturing, assembly, and assembly can be facilitated, and the manufacturing cost can be reduced.
In the invention of claim 2, since the arc portion 12, the bent portion 14, and the side plate 15 are integrally formed, the rigidity of the supply shutter 10 can be improved and the operation of the supply shutter 10 can be performed smoothly and reliably.
In the invention of claim 3, since the gear 31 is formed to have a radius smaller than the radius of the gear groove 30, the opening / closing amount of the supply shutter 10 can be made small relative to the operation amount, and fine adjustment can be performed. Can be improved.
According to the fourth aspect of the present invention, the supply shutter 10 formed into an integral box shape may be inserted between the left and right side plates 23 of the frame 22 of the supply hopper 4 and attached by the horizontal shaft 21. Since the gear 31 can be engaged with the gear groove 30 of the supply shutter 10, the operation shaft 32 and the operation dial 35 can be easily attached.

An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a seedling container soil supply device, which is provided above a transfer table 3 having a transfer roller 2 for transferring a known seedling container. The seedling container soil supply device 1 is provided with a supply hopper 4 at the top, and a feeding belt 6 wound around a pair of rollers 5 provided at a predetermined interval in the transfer direction of the seedling container below the supply hopper 4. Is provided and configured.
A supply port 7 is formed between the supply hopper 4 and the feeding belt 6, and a supply shutter 10 for adjusting a supply amount is provided in the supply port 7.

The supply shutter 10 has an on-off valve 11 formed in a substantially arc shape when viewed from the side. The on-off valve 11 forms a substantially straight upright portion 13 on an upper portion of an arc portion 12 having a substantially arc shape in a lower side view. A bent portion 14 bent rearward is formed on the upper edge of the upright portion 13.
On the left and right sides of the arc portion 12, the standing portion 13, and the bent portion 14, left and right side plates 15 bent so as to intersect with each other at substantially right angles are provided. Mounting holes 20 are formed at predetermined positions of the left and right side plates 15, and a horizontal shaft 21 is inserted into the mounting holes 20, and the supply shutter 10 is connected to the left and right side plates 23 of the frame 22 of the seedling container soil supply device 1 by the horizontal shaft 21. It can be pivoted.

Thus, the side plate 15 is formed with a gear groove 30 in an arc shape with the horizontal axis 21 as the center. A gear 31 is meshed with the gear groove 30. The gear 31 is attached to the operation shaft 32 in a fixed state. The operation shaft 32 protrudes outward from the insertion hole 33 of the frame side plate 23 and the operation dial 35 is attached. A so-called serration groove is formed in the outer periphery of the operation shaft 32 and the insertion hole (not shown) of the operation dial 35 and attached to each other in a fixed state.
A rotating brush 36 is provided on the lower side of the transfer stand 3 in the transfer direction of the seedling container, except for excess soil supplied to the seedling container, and an irrigation device 37 is provided on the lower side of the transfer brush 36 in the transfer direction. . Moreover, although illustration is abbreviate | omitted in the transfer direction lower side of the irrigation apparatus 37, you may provide a seed supply apparatus and a covering soil supply apparatus.
Therefore, the soil supply device 1 for a seedling container may constitute a part of a seeding device having a seed supply device or a soil covering supply device.

(Operation of Example)
Next, the operation will be described.
The present invention is configured as described above, and the supply shutter 10 is positioned between the left and right frame side plates 23 of the frame 22 of the seedling container soil supply device 1, and the left and right side plates 15 are rotated around the horizontal shaft 21 on one frame side plate 23. Install freely.
When the gear 31 is engaged with the gear groove 30 of the side plate 15 of the supply shutter 10, the attachment is completed.
The assembly order of the gear 31, the operation shaft 32, and the operation dial 35 is arbitrary.

  When the operation dial 35 is turned, the gear 31 causes the gear groove 30 of the side plate 15 to move in an arc around the horizontal axis 21, and as a result, the on-off valve 11 rotates about the horizontal axis 21 and moves far and away with respect to the feeding belt 6. Then, the opening amount of the supply port 7 is changed, and the supply amount of the soil fed out from the supply port 7 is adjusted.

In this case, since the supply shutter 10 has the left and right side plates 15 attached to the side plate 23 so as to be rotatable by the horizontal shaft 21, only the mounting position of the left and right horizontal shafts 21 needs to be noted. Greatly improved.
In addition, the operating force input by the gear 31 to the gear groove 30 of one of the left and right side plates 15 of the supply shutter 10 is transmitted to the other side plate 15 via the on-off valve 11, and the left and right side plates 15 are simultaneously moved to the horizontal axis. Rotate to 21 center.

Accordingly, since there is no portion that is attached by fitting between the gear 31, the operation shaft 32, and the operation dial 35 by the angular shaft fitting, there is no play during operation.
Therefore, the lower edge of the on-off valve 11 is moved up and down equally.

  In this case, the supply shutter 10 has a substantially straight upright portion 13 formed on the upper portion of the circular arc portion 12 having a substantially arc shape when viewed from the side, and a bent portion 14 bent rearward at the upper edge of the upright portion 13. Since the side plate 15 is provided on both the left and right sides of the arc portion 12, the standing portion 13, and the bent portion 14 to constitute the on-off valve 11, the on-off valve 11 has a so-called box shape and improves the rigidity of the on-off valve 11. Thus, it is possible to improve the accuracy of the vertical movement of the lower edge of the opening / closing valve 11 during the operation.

Therefore, the supply shutter 10 can be attached simply by attaching the side plates 15 on the left and right sides to the horizontal shaft 21, and the attachment is simple.
Further, after the supply shutter 10 is attached, the operation shaft 32 of the gear 31 is inserted into the insertion hole 33 of the side plate 23, and then the gear 31 is engaged with the gear groove 30 of the supply shutter 10. It is only necessary to attach the operation dial 35, which facilitates installation and assembly work.

  In addition, since the supply shutter 10 has a gear 31 with a small radius relative to the radius of the gear groove 30, the amount of rotation of the gear groove 30 with respect to the amount of rotation of the operation dial 35 can be made much smaller. Subtle adjustments can be made when adjusting.

  In this case, gear grooves 30 are formed in the left and right side plates 15 of the supply shutter 10, and the insertion holes 33 are formed in both the left and right side plates 23 of the frame 22 of the seedling container soil supply device 1. With the dominant arm, the operation dial 35 can be attached to either the left or right side of the frame 22 of the seedling container soil supply device 1, thereby improving the operability.

The side view of a soil supply apparatus. The side view of a supply shutter. The enlarged side view of the vicinity of the supply shutter. Fig. 4 is a vertical side view of a supply shutter. The rear view of a supply shutter. The assembly state perspective view of a supply shutter.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Soil supply apparatus for raising seedling containers, 2 ... Transfer roller, 3 ... Transfer stand, 4 ... Supply hopper, 5 ... Roller, 6 ... Feeding belt, 7 ... Supply port, 10 ... Supply shutter, 11 ... Open / close valve,
DESCRIPTION OF SYMBOLS 12 ... Arc part, 13 ... Standing part, 14 ... Bending part, 15 ... Side plate, 20 ... Mounting hole, 21 ... Horizontal shaft, 22 frame, 23 ... Side plate, 30 ... Gear groove, 31 ... Gear, 32 ... Operation shaft, 33 ... insertion hole, 35 ... operation dial.

Claims (4)

Formed between the upper supply hopper 4 located above the transfer stand 3 for transferring the seedling container, the feeding belt 6 provided below the feeding hopper 4, and the supply hopper 4 and the feeding belt 6 A supply port 7 and a supply shutter 10 attached to the supply port 7 are provided. The supply shutter 10 rotates the left and right side plates 15 to the left and right side plates 23 of the frame 22 fixed to the transfer table 3 by a horizontal shaft 21. A gear groove 30 is formed in an arc shape centering on the horizontal shaft 21 in one or both of the left and right side plates 15 and is mounted on the side plate 23 in the gear groove 30. A supply shutter of a soil supply device for a seedling container in which a fixed gear 31 is engaged with the operation shaft 32 and an operation dial 35 is fixedly attached to the operation shaft 32. 2. The supply shutter 10 according to claim 1, wherein a bent portion 14 that is bent at a substantially right angle is formed on an upper portion of a circular arc portion 12 that is substantially arc-shaped when viewed from the lower side, and the gears are provided on both left and right sides of the circular arc portion 12 and the bent portion 14. A supply shutter for a soil supply device for a seedling container in which a side plate 15 provided with a groove 30 is integrally formed. The feed shutter of the soil supply device for a seedling container according to claim 1 or 2, wherein the gear 31 is formed with a radius smaller than the radius of the gear groove 30. Between the left and right side plates 23 of the frame 22 of the upper supply hopper 4 that is located above the transfer stand 3 for transferring the seedling raising container 3, a bent portion 14 that is bent at a substantially right angle is formed on the upper portion of the arc portion 12 having a substantially arc shape when viewed from the side. The left and right side plates 15 of the supply shutter 10 formed integrally with the side plates 15 provided with the gear grooves 30 on both the left and right sides of the circular arc portion 12 and the bent portion 14 are inserted into the insertion holes 20 of the left and right side plates 15. The supply shutter 10 is rotatably attached to the left and right side plates 23 through the horizontal shaft 21, and then the gear 31 is engaged with the gear groove 30 of the supply shutter 10, and the side plate 23 of the operation shaft 32 of the gear 31 is engaged. A method for attaching a supply shutter of a soil supply device for a seedling container in which an operation dial 35 is attached to a portion protruding from the container.

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