JP2014108086A - Soil recovering and supplying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a soil recovering and supplying apparatus capable of preventing soil clogging when recovering soil, and smoothly supplying the recovered soil at a low cost with a simple configuration.SOLUTION: A soil recovering and supplying apparatus 1 comprises: a soil supplying conveyor 18 supplying a soil insertion device 10 inserting soil into a seedling box P with soil S housed in a soil housing space 3; a soil recovering conveyor 12 recovering soil S fallen from the soil insertion device 10 and conveying the soil S to the soil housing space 3; and a transmitting mechanism 5 transmitting power of the soil supplying conveyor 18 to the soil recovering conveyor 12. The transmitting mechanism 5 comprises: a pin wheel 27 attached on a rotational shaft 14a of the soil recovering conveyor 12; a crank 28 attached on a rotational shaft 21a of the soil supplying conveyor 18; and a hook claw 29 in which a base end part is pivoted by the crank 28 and a tip end part is mounted on the pin wheel 27. The hook claw 29 reciprocating by rotation of the rotational shaft 21a repeats reciprocation between the tip end part side and the base end part side, and a claw 29a successively draws a plurality of pins 27a to the base end part side.

Description

  The present invention relates to a soil recovery and supply device that recovers soil that has fallen from an earthing device that puts into a seedling box and supplies the soil to the soiling device.

  As a conventional example, the soil supply apparatus described in Patent Document 1 is illustrated. As shown in FIG. 4, this soil supply device is provided between a soil supply hopper 114 for storing soil, a left and right side frame 103 having a lower part fixed to the soil supply hopper 114, and a left and right side frame 103. It consists of a group of buckets 109 juxtaposed on a chain 108 wound around an upper rotating shaft 104 and a lower rotating shaft 106, and is located on the side of a soil supply device provided on a horizontal transfer table for transferring a seedling box. Supply soil to the equipment. A rear hopper 144 that communicates with the soil supply hopper 114 is provided on the lower rear side of the left and right side frames 103, and falls between the rear hopper 144 and the lower side of the soil supply device from the soil supply device. A soil collecting device 160 comprising a collecting and conveying belt 163 that collects and conveys the soil that has fallen without entering the seedling box is provided, and the collecting and conveying belt 163 rotates the driving roller 161 of the conveying belt 163. The rotation of the lower rotary shaft 106 is transmitted by a one-way rotation transmission clutch 165 provided on the shaft 164 so as to move intermittently.

JP 06-125660 A

However, since the conventional soil supply apparatus uses the one-way rotation transmission clutch 165, there is the following problem.
(1) Since it is an expensive part, the manufacturing cost increases.
(2) Since it is a precision part, it is more likely to break down when dirt or dust enters, compared to a mechanism that uses simple parts such as gears and links, and the product life is short.

In order to solve the above problems, the soil collection and supply device of the present invention is:
A soil supply conveyor for supplying soil stored in the soil storage space to a soil storage device for storing in a seedling box,
A soil collection conveyor that receives the soil that has fallen from the earthing device and transports it to the soil storage space;
A soil collection and supply device comprising a transmission mechanism for transmitting the power of the soil supply conveyor to the soil collection conveyor,
The transmission mechanism is attached to a rotating shaft of the soil recovery conveyor so that the shaft is aligned, and a pin wheel having a plurality of pins arranged at predetermined intervals around the shaft;
A crank attached to the rotating shaft of the soil supply conveyor;
A base end portion is pivotally supported by the crank, and a distal end portion having a claw that can be engaged with the pin is provided with a claw extending in a lateral direction by being placed on the pin wheel,
The claw repeats reciprocation to the tip end side and the base end side by the action of the crank accompanying the rotation of the rotating shaft of the soil supply conveyor, and the claw sequentially moves the plurality of pins to the base. It is comprised so that it may draw near to an edge part side.

  According to this configuration, the soil recovery conveyor can be intermittently driven with a simple configuration and at a low cost. Accordingly, since a large amount of soil is not continuously supplied to the soil storage space, it is possible to prevent clogging of the soil in the soil storage space and to smoothly supply the soil to the soil hopper by a soil supply conveyor. it can. Moreover, the soil in the soil recovery hopper can be fluidized by the vibration caused by the intermittent operation of the soil recovery conveyor, and the soil can be recovered smoothly. Further, since the drive of the soil collection unit and the soil supply unit can be separated simply by removing the claw from the pin wheel, the soil collection unit and the soil supply unit can be configured to be separable from each other, and are transported and stored. Can be easily done.

The following aspects are illustrated as said soil collection | recovery supply apparatus.
(1) The claw includes a substantially downward slope extending obliquely downward toward the base end side thereof,
The frame that supports the rotating shaft of the soil recovery conveyor includes a cushion member,
A mode in which the inclined surface and the cushion member come into contact with each other before the claw descends and engages with the pin when the claw moves toward the tip.
(2) The frame that supports the rotating shaft of the soil collection conveyor includes a substantially upward slope that extends obliquely downward toward the base end side of the claw,
The claw includes a cushion member,
A mode in which the inclined surface and the cushion member come into contact with each other before the claw descends and engages with the pin when the claw moves toward the tip.

  According to these configurations, since the slope comes into contact with the cushion member before the claw engages with the pin, it is possible to reduce a collision sound due to the engagement between the claw and the pin. Then, as the claw moves toward the base end, the inclined surface is guided by the cushion member, so that the claw gradually descends, and the claw can be firmly engaged with the pin.

In addition, as the soil collection and supply device,
The said cushion member illustrates the aspect which is a cushion roller by which the cushioning material was arrange | positioned by the surrounding surface.

  According to this configuration, in a state where the cushion roller and the slope are in contact with each other, the cushion roller rolls with respect to the slope, so that the operation of the claw can be smoothly guided.

  According to the soil collection and supply apparatus according to the present invention, with a simple configuration, it is possible to prevent clogging at the time of soil collection and to provide an excellent effect that the collected soil can be smoothly supplied.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view showing an overall configuration of a soil collection and supply device according to an embodiment embodying the present invention. It is the side view which expanded the part of the transmission mechanism of the same soil collection | recovery supply apparatus. It is a figure which shows a series of operation | movement of the transmission mechanism of the same soil collection | recovery supply apparatus. It is a side view of the conventional soil supply apparatus.

  1 to 3 show a soil collection and supply device 1 according to an embodiment of the present invention. As shown in FIGS. 1 and 2, the soil collection and supply device 1 includes a soil supply unit 2 that supplies the soil S stored in the soil storage space 3 to the soil putting device 10 that puts the soil in the seedling box P. The soil collecting unit 4 that receives the soil S that has fallen from the earthing device 10 and transports it to the soil storage space 3, and the transmission mechanism 5 that transmits the power of the soil supply unit 2 to the soil collecting unit 4. The soil supply unit 2 and the soil recovery unit 4 are provided with moving wheels 2a and 4a, respectively.

  The soil supply unit 2 includes a soil supply conveyor 18 that supplies the soil S in the soil storage space 3 to the soil putting device 10. The earth supply conveyor 18 is provided with rotating gears 20 and 21 driven by motors (not shown) on the upper and lower sides of a casing 19 extending in a substantially vertical direction, and a chain 22 is bridged between the rotating gears 20 and 21. In addition, a large number of buckets 23 are attached to the chain 22. An upper discharge portion 24 is provided above the housing 19 on the side facing the upper opening of the soil hopper 10a, and a discharge port 25 formed in a rectangular cross-section from the upper discharge portion 24 is placed in the soil. The device 10 is directed to the upper opening of the soil hopper 10a.

  The soil collection unit 4 collects the soil S dropped from the earthing device 10 in the soil collection hopper 11, and the soil S is put into the soil storage space 3 by the soil collection conveyor 12 installed below the soil collection hopper 11. It is comprised so that it may convey to a horizontal direction. The soil collection unit 4 of this example projects the start end side in the transport direction of the soil collection conveyor 12 to the side of the earthing device 10, and communicates with the soil collection hopper 11 on the upper side of the projecting portion to connect the soil supply hopper 13. Is provided. And the soil S reduced by being put in the seedling box P is supplied to this soil supply hopper 13. The soil collection conveyor 12 includes a driving roller 14 and a driven roller 15 that are rotatably supported at intervals in the lateral direction, and a conveyor belt 16 that is wound around the rollers 14 and 15.

  The transmission mechanism 5 transmits the power of the soil supply conveyor 18 to the soil collection conveyor 12, and is attached so that the shaft coincides with the rotation shaft 14a of the drive roller 14 of the soil collection conveyor 12, and is arranged around the shaft. A pin wheel 27 having a plurality of (six in this example) pins 27a arranged at intervals, a crank 28 attached to the rotating shaft 21a of the rotating gear 21 of the soil supply conveyor 18, and a base end portion A tip end portion having a claw 29 a that is pivotally supported by the crank 28 and engageable with the pin 27 a is provided with a hook claw 29 that extends in the lateral direction when placed on the pin wheel 27. And the claw 29 repeats reciprocation to the front end side and the base end side by the action of the crank 28 accompanying the rotation of the rotary shaft 21a of the soil supply conveyor 18, and the claw 29a holds the plurality of pins 27a. It is configured to sequentially draw toward the base end side. With this configuration, the transmission mechanism 5 is configured to intermittently rotate the soil collection conveyor 12.

  In this example, the claw 29 is provided with a substantially downward slope 29b extending obliquely downward toward the base end side, and the frame 12a that supports the rotating shaft 14a of the soil collection conveyor 12 is a cushion roller 30 as a cushion member. It has. When the claw 29 moves to the tip end side, the inclined surface 29b and the cushion roller 30 come into contact with each other before the claw 29a descends and engages with the pin 27a. The cushion roller 30 of this example is provided with foamed urethane as a cushion material on the peripheral surface thereof.

  Next, a series of operations of the soil collection and supply apparatus 1 of this example will be described with reference to FIG. It is assumed that it is in the state of FIG. First, as the rotary gear 21 of the soil supply conveyor 18 rotates, the claw 29 starts to move toward the tip, and the claw 29a is disengaged from the engaged pin 27a and rides on the subsequent pin 27a. (See (b) → (c) → (d)). Next, when the tip of the claw 29a descends past the succeeding pin 27a, the inclined surface 29b of the claw 29 comes into contact with the cushion roller 30 before the claw 29a engages with the succeeding pin 27a ((e) in the figure). reference). Next, the claw 29 starts to move toward the base end side, and along with the movement, the inclined surface 29b is guided by the cushion roller 30, the claw 29 descends gradually, and the claw 29a is firmly hooked on the pin 27a (the same figure). (Refer to (f) → (g)). Next, when the claw 29 moves to the proximal end side, the claw 29a drives the pin 27a ((h) → (a) in the figure). Then, the soil collection conveyor 12 is driven to rotate intermittently by sequentially repeating the above-described action of the claw 29 on the plurality of pins 27a.

  According to the soil recovery and supply apparatus 1 of the present example configured as described above, intermittent driving of the soil recovery conveyor 12 can be realized with a simple configuration and low cost. Accordingly, since a large amount of soil is not continuously supplied to the soil storage space 3, the soil storage space 3 is prevented from being clogged, and the soil S is smoothly supplied to the soil hopper 10a by the soil supply conveyor 18. can do. Moreover, the soil S in the soil recovery hopper 11 can be fluidized by the vibration caused by the intermittent operation of the soil recovery conveyor 12, and the soil S can be recovered smoothly. Moreover, since the drive of the soil collection | recovery part 4 and the soil supply part 2 can be isolate | separated only by removing the claw 29 from the pinwheel 27, the soil collection | recovery part 4 and the soil supply part 2 can be comprised so that isolation | separation is mutually possible, and conveyance and storage Can be easily done.

  In addition, since the inclined surface 29b contacts the cushion roller 30 before the claw 29a engages with the pin 27a, a collision sound due to the engagement between the claw 29a and the pin 27a can be reduced. The inclined surface 29b is guided by the cushion roller 30 along with the movement of the claw 29 toward the base end side, so that the claw 29 can be gradually lowered and the claw 29a can be firmly engaged with the pin 27a.

  Moreover, the cushion roller 30 by which the cushion material was arrange | positioned by the surrounding surface is employ | adopted as the said cushion member. For this reason, when the cushion roller 30 and the inclined surface 29b are in contact with each other, the cushion roller 30 rolls with respect to the inclined surface 29b, so that the operation of the claw 29 can be smoothly guided.

In addition, this invention is not limited to the said embodiment, For example, it can also be suitably changed and embodied as follows, for example in the range which does not deviate from the meaning of invention.
(1) Instead of the slope 29b and the cushion member (cushion roller 30) in the above embodiment, the frame 12a that supports the rotating shaft of the soil collection conveyor 12 extends substantially obliquely downward toward the proximal end side of the claw 29. The claw 29 includes an upward slope, and the claw 29 includes a cushion member. When the claw 29 is moved toward the tip, the claw 29a is lowered and engaged with the pin 27a before the claw 29 and the cushion member are engaged. It is set as the aspect comprised so that may contact | abut. Also with this configuration, the same effects as those of the above embodiment can be obtained.
(2) The soil supply hopper 13 is provided on the soil supply conveyor 18 side.

DESCRIPTION OF SYMBOLS 1 Soil collection | recovery supply apparatus 2 Soil supply part 2a Wheel for movement 3 Soil storage space 4 Soil collection part 4a Wheel for movement 5 Transmission mechanism 10 Earth putting apparatus 10a Soil hopper 11 Soil collection hopper 12 Soil collection conveyor 12a Frame 13 Soil supply hopper 14 Drive roller 14a Rotating shaft 15 Driven roller 16 Conveyor belt 18 Soil supply conveyor 19 Housing 20 Rotating gear 21 Rotating gear 21a Rotating shaft 22 Chain 23 Bucket 24 Upper discharge part 25 Release port 27 Pin wheel 27a Pin 28 Crank 29 Claw 29a Claw 29b slope 30 cushion roller P seedling box S soil

Claims (4)

A soil supply conveyor for supplying soil stored in the soil storage space to a soil storage device for storing in a seedling box,
A soil collection conveyor that receives the soil that has fallen from the earthing device and transports it to the soil storage space;
A soil collection and supply device comprising a transmission mechanism for transmitting the power of the soil supply conveyor to the soil collection conveyor,
The transmission mechanism is attached to a rotating shaft of the soil recovery conveyor so that the shaft is aligned, and a pin wheel having a plurality of pins arranged at predetermined intervals around the shaft;
A crank attached to the rotating shaft of the soil supply conveyor;
A base end portion is pivotally supported by the crank, and a distal end portion having a claw that can be engaged with the pin is provided with a claw extending in a lateral direction by being placed on the pin wheel,
The claw repeats reciprocation to the tip end side and the base end side by the action of the crank accompanying the rotation of the rotating shaft of the soil supply conveyor, and the claw sequentially moves the plurality of pins to the base. A soil collection and supply device configured to draw toward the end side. The claw has a substantially downward slope extending obliquely downward toward the base end side thereof,
The frame that supports the rotating shaft of the soil recovery conveyor includes a cushion member,
2. The soil recovery supply according to claim 1, wherein the inclined surface and the cushion member are in contact with each other before the claw descends and engages with the pin when the claw moves toward the tip side. apparatus. The frame that supports the rotating shaft of the soil collection conveyor includes a substantially upward slope that extends obliquely downward toward the base end side of the claw,
The claw includes a cushion member,
2. The soil recovery supply according to claim 1, wherein the inclined surface and the cushion member are in contact with each other before the claw descends and engages with the pin when the claw moves toward the tip side. apparatus.   The soil collecting and supplying apparatus according to claim 2 or 3, wherein the cushion member is a cushion roller having a cushioning material disposed on a peripheral surface thereof.

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