JP2691930B2 - Seeding device for pot sheet - Google Patents

Description

TECHNICAL FIELD The present invention relates to a pot sheet seeding device for feeding seeds one by one into a small recess formed in an upper portion of a pot.

(Prior Art) Conventionally, as shown in FIG. 1, a cardboard pot sheet B in which a large number of pots A are vertically and horizontally arranged is placed on a placing plate C,
Covering soil D into each pot A, sowing seeds E on the covering soil D, then putting in soil S of the floor, covering the seedling raising box G from the top upside down, and reversing the placing plate C that is on top. It is known that the seedlings H are removed and grown to be pot seedlings H.

Further, Japanese Patent Application Laid-Open No. 63-237708 (FIG. 2) describes a device in which a pot A is placed on a belt I and a seeding device J is provided on the pot A.

Japanese Patent Application No. 63-294187 of the applicant's earlier application (not known)
In the No. No., a large number of pots are connected vertically and horizontally to form a pot sheet, and a soil supply device for excessively supplying the soil to the pot sheet above the transport path of the pot sheet and an excess for the pot sheet. A compaction roll for flattening the supplied sieve soil, a projection roll having a circumferential surface with a pressing protrusion for forming a recess by pressing the center portion of the pot of the compressed sieve soil to a medium degree, and the pressing projection Describes a pot sheet seeding device provided with a leveling brush for returning the overflowing soil generated when forming the concave portion to the concave portion.

(Problems to be Solved by the Invention) The one shown in FIG. 1 is for a rice transplanter, and seed E to be used.
Is limited to a few seeds of sowing, and lettuce and so on are made in one stand. Therefore, when sowing a few seeds, it is necessary to thin them out, which is troublesome and impossible to carry out. For pot seedlings such as lettuce, only one seed is required to be accurately sown in the center.

In the above-mentioned Japanese Patent Laid-Open No. 63-237708, the pot A is placed on the belt I, and the seeding device J is provided on the upper part thereof. However, the known example is a technique in which the pot A is not inverted. is there.

When reversing a pot A that is about four times as large as the pot A, there is a problem that the internal soil F is spilled during reversal.

In the Japanese Patent Application No. 63-294187 of the prior application, the pot sheet was fitted with the pot sheet when it was transferred without noticing that the sieve soil in the hopper of the soil feeding device was lost during the work. Because the soil is not supplied to the pot, it is very light, the front edge of the pot sheet is distorted and floats up, and the leveling brush is rotating in the opposite direction to the direction of movement of the pot sheet. It is sometimes lifted by the brush and wrapped around the leveling brush.

Also, the leveling brush is located at a high position when the soil is supplied because the thickness of the mounting plate is thick, and when the soil is supplied, it is positioned at a low position because the nursery box is thinner than the mounting plate described above. Therefore, even when the leveling brush is positioned at a low position for supplying the soil when the floor soil is supplied, the pot sheet may be wound around the leveling brush because the position of the leveling brush is low.

(Object of the Invention) Therefore, the present invention prevents a pot sheet from being wound around a leveling brush with a simple device.

(Means for Solving the Problem) Therefore, according to the present invention, a large number of pots 2 are vertically and horizontally arranged to form a pot sheet 1, and the pot sheet 1 is sewn at a position above a transport path of the pot sheet 1. 9, a soil supplying device 14 for supplying the soil 9, a squeezing roll 17 for squeezing the sieve soil 9 supplied to the pot sheet 1, and a recess 48 by pressing the central portion of the pot 2 of the squeezed soil 9 to a medium degree. Pressing protrusion 19 that forms
The projection roll 18 provided on the peripheral surface and the pressing projection 19 are recessed
A leveling brush 46 for returning the protruding soil 47 generated when forming the 48 into the recess 48 is provided, and a soil bridging plate 51 is provided on the rotation rising side of the brush 46. Is located below the center of the brush 46, and the bottom surface 58 side is provided with a pot sheet pressing device 56 in which a desired number of pot sheet pressing plates 57 having a shape extending the upper surface of the pot sheet 1 rearward are fixed. This is a seeding device.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. 1 is a pot sheet formed of paper material, and the bottom portions of a large number of pots 2 for one stock are connected vertically and horizontally by a connecting portion 4 to form a square. Form into a shape. Since the pot 2 of the present invention is for lettuce seedlings,
The volume is about 4 times that of rice.

Reference numeral 5 denotes an upper wall of the pot 2, and the side surface shape of the pot 2 is a pyramid or a cone as a whole. Reference numeral 6 is a through hole formed in the center of the upper wall 5.

When the pot sheet 1 is placed on the mounting plate 8 having a large number of protrusions 7 as shown in FIG. 5, the large number of protrusions 7 project from the through holes 6 into the respective pots 2. When the sieve soil 9 is filled from above and the seedling raising box 61 is covered from above and inverted, a small recess 10 is formed inside the through hole 6, as shown in FIG. Be sure to sow the seeds 11 of the lettuce coated inside the recess 10 one by one.

In FIG. 6, reference numeral 12 is a horizontal transfer table which fits the pot sheet 1 and transfers the mounting plate 8, and is mounted on the floor by the supporting leg 13 provided at a desired position.

At the beginning of the horizontal transfer table 12, the pot sheet 1
The supply unit 24 for supplying the mounting table 8 with which the above is fitted is formed.
On the front side of the supply unit 24, there is provided a soil supply device 14 for supplying the sieve soil 9 to each of the pots 2 of the pot sheet 1 in a random manner. The soil feeding device 14 is known, and is composed of an upper sieve soil feeding hopper 15 and a lower feeding belt 16.

A first compression roll 17 is provided on the front side of the soil supply device 14. The first compression roll 17 temporarily compresses the sieve soil 9 supplied by the soil supply device 14, and makes it easy for the pressing protrusions 19 of the protrusion rolls 18 described later to be pressed into the pots 2 of the pot sheet 1. The first compression roll 17 is mounted on an arm 20 attached to the horizontal transfer table 12 by a horizontal rotation shaft 21 and is urged downward by a spring.

The projecting roll 18 is provided on the front side of the first compression roll 17, and is axially mounted on a horizontal rotation shaft 22 orthogonal to the transport direction of the pot sheet 1. The pressing protrusion 19 is a roll of the protrusion roll 18.
It is formed on the outer peripheral surface of 23 parts with the same interval on the left and right as the pot 2, rotates in synchronization with the movement of the pot 2, and fits into each pot 1 one by one to keep only the soil 9 Press from above and not each pot 2.

The projection roll is provided on the horizontal transfer table 12 between the feeding section 24 of the placing plate 8 and the end side of the feeding belt 16 of the soil feeding device 14.
A transfer device 25 for transferring the pot sheet 1 is provided in synchronism with the rotation of the pressing protrusion 19 of 18.

The transfer device 25 is a gear 26 provided on the starting end side of the supply unit 24,
Gears on the lower end side of the feeding belt 16 of the soil feeding device 14
It is formed by wrapping the endless transfer chain 28 between it and 27.

Reference numeral 31 is a rotary shaft to which the gear 26 is fixed, and 32 is a rotary shaft to which the gear 27 is fixed.

The chain 28 includes one pot between the rear end pot 2 of the pot sheet 1 in the preceding mounting plate 8 and the front end pot 2 of the pot sheet 1 in the subsequent mounting plate 8. The transfer protrusion 29 is attached at the same interval L as that of 2. Transfer protrusion 29
A pair of leg portions 36, 36 are formed on both left and right sides of the contact portion 34 of
Substantially horizontal sliding contact portions 37, 37 protruding laterally are formed at the rear end portions of the leg portions 36, 36, respectively. The transfer protrusions 29 rotatably attach the front ends of the legs 36, 36 to the chain 28 by means of pins 38.

That is, in the transfer protrusion 29, the sliding contact portions 37, 37 have the frames 30, 30.
When the contact portion 34 is slidably brought into contact with the upper surface of the guide plate 40 provided on the guide plate 40, and the contact portion 34 is moved upright, and reaches the front side inclined portion 41 of the front side portion of the guide plate 40, the slide contact portion 37 causes the front side inclined portion 41 It descends along the inclination and rotates the transfer protrusion 29 so as to retract backward about the pin 38.

43 is a semi-arcuate guide portion formed at the lower edge of the leg portions 36, 36 at a substantially intermediate position in the front-rear direction, and is in contact with the rotary shaft 32 to lower the lower rotation center position of the transfer projection 29. Transfer protrusion
It prevents contact between the rear ends of the leg portions 36, 36 of 29 and the bottom surface of the mounting plate 8.

The rear portion of the guide plate 40 is formed on a rear side inclined portion 44 which becomes lower toward the rear, and the abutting portion 34 of the transfer protrusion 29 is slidably contacted with the rear side inclined portion 44, so that the guide portion 43 of the leg portion 36 is formed. Make sure that the rotating shaft 31 is not caught.

Reference numeral 45 denotes a long guide rod provided between the left and right frames 30, 30 of the guide plate 40, which forms a gap between the bottom surface of the mounting plate 8 and the top surface of the guide plate 40. The above-described downward rotation of the transfer protrusion 29 is made smooth.

A leveling brush 46 is provided on the front side of the protrusion roll 18. That is, when the pressing protrusions 19 are fitted into the pot 2, the sieve soil 9 in the pot 2 protrudes to become the protrusion soil 47 on the upper surface of the connecting portion 4 of the pot 2, while the sieve soil 9 in the pot 2 is on the other hand. Since the recess 48 is formed on the upper surface of the
Then, the protruding soil 47 is swept back to the inside of the recess 48.

The leveling brush 46 is mounted on an arm 49 attached to the horizontal transfer table 12 by a horizontal rotation shaft 50 and is rotated by a motor.

Further, the placing plate 8 is formed thick to suppress the supplied soil, but the nursery box 61 which is not suppressed is formed thinner than the placing plate 8. Therefore, the leveling brush 46 adjusts the height. It can be configured freely and should be placed at a high position when supplying floor soil.
When supplying the below-mentioned soil, it should be placed in a low position.

Then, a horizontal earthing plate 51 is provided on the rotation rising side of the leveling brush 46. The earth plate 51 is attached to the arms 49, 49, and is inclined downward toward the rear side. The front end of the earth-moving plate 51 is brought into sliding contact with the leveling brush 46, and the rear end of the earth-moving plate 51 is located rearward of the space L.

A second compression roller 52 is provided following the leveling brush 46. The second compression roller 52 further compresses the sieve soil 9 leveled by the leveling brush 46 and tightly packs it in the pot 2.

Following the second compression roller 52, a reversing portion 53 for reversing the seedling raising box 61 from above is provided on the upper surface of the pot sheet 1 fitted to the placing plate 8 described above, and the depression that is on the upper side following the reversing portion 53 is provided. A seeding device (54) for surely sowing the seeds (11) in each of the seeds (10) is provided.

Then, the pot sheet pressing device 56 is provided on the rotation rising side of the leveling brush 46. The pot sheet pressing device 56 prevents the front end of the pot sheet 1 to which the sieve soil 9 is not supplied from being lifted by the leveling brush 46 and wrapped around the leveling brush 46.

The pot sheet pressing device 56 is formed by providing a plurality of holding plates 57 on the lower surface of the earthing plate 51 at intervals so as to be located above the longitudinal connecting portion 4 of the pot sheet 1.
The pressing plate 57 has a lower surface 58 formed in parallel with the upper surface of the pot sheet 1, and a rear end thereof is inclined so as to be higher toward the rear side to form a guide portion 59. The lower surface 58 of the pressing plate 57 is located above the lower end of the brush 50 of the leveling brush 46, and the tip 60 of the pressing plate 57 faces the position below the center of the leveling brush 46. .

In the figure, 55 is a transfer roll that transfers the mounting plate 8 following the transfer device 25.

(Operation) Next, the operation will be described.

When the pot sheet 1 is placed with the upper wall 5 down on the upper part of the mounting plate 8 having a large number of protrusions 7, the tips of the protrusions 7 of the mounting plate 8 project into the pot 2 through the through holes 6. . When the pot sheet 1 in this state is supplied onto the guide rods 45, 45 of the supply unit 24 of the horizontal transfer table 12, the transfer protrusion 29 of the transfer device 25 causes the rear end of the pot sheet 1 in the preceding mounting plate 8 and the trailing end thereof. Of the pot sheet 1 in the placing plate 8 of the pot sheet 1 is transferred with a space L between the pots 2 for one pot, and when the soil feeding device 14 passes below, the pot soil 9 is excessive in each pot 2. Supplied, the proportion of supply is such that each pot 2 is thickly covered.

The pot sheet 1 that has been supplied with the screen soil 9 is once compressed by the screen soil 9 supplied by the first compression roll 17 and reaches below the protrusion roll 18. The pot sheet 1 has a protrusion roll 18
Since it is moved by the transfer protrusion 29 of the endless transfer chain 28 that is rotating in synchronization with, the pressing protrusion 19 of the protrusion roll 18 does not press the pot 2 but press fits it into the pot 2 and only the sieve soil 9 from above. Press to set.

At this time, when the pressing projections 19 enter, the sieve soil 9 around the pressing projections 19 protrudes to form a protruding soil 47 on the connecting portion 4 of the pot 2, and a concave portion 48 is formed on the central upper surface of the pot 2. Form.

Next, when the mounting plate 8 reaches below the leveling brush 46, the leveling brush 46 returns the protruding soil 47 to the inside of the recess 48, and then below the second compression roller 52, the second time. It is squeezed and the sieve soil 9 in the pot 2 is solidified so that it does not spill when inverted.

In this case, since the transfer protrusion 29 transfers the rearmost end pot 2 of the preceding pot sheet 1 and the frontmost end pot 2 of the succeeding pot sheet 1 at the same interval as one pot 2, The protruding soil 47 returned by the leveling brush 46 falls within the interval L. Since the horizontal rising and lowering side of the leveling brush 46 is provided with a horizontal earthing plate 51, and the front end of the earthing plate 51 is provided in sliding contact with the leveling brush 46, the earthing plate 51 and the preceding pot sheet 1 The leveling brush 46 sweeps back and fills all the protruding soil 47 on the upper surface of the connecting portion 4 of each pot 2 of the preceding pot sheet 1 in the space A formed by the upper surface of the same and the leveling brush 46. This filled soil has a leveling brush 46
Entering inside and co-rotating, it collects on the upper surface of the earthing plate 51, and the soil accumulated on the upper surface is pushed by the soil that co-rotates with the leveling brush 46 later and falls from the rear end of the earthing plate 51, It falls into the frontmost pot 2 of the subsequent pot sheet 1.

Then, a reversing section 53 is provided following the second compression roller 52, and the reversing section 53 covers the pot sheet 1 with the inverted seedling raising box 61, and the seedling raising box 61 is turned upside down and placed on the upper side. The plate 8 is removed, but in this case, even the pot 2 formed with a volume about 4 times that for rice has been soil-consolidated 3 times as described above, so that the pot sheet 1 does not spill. Can be reversed.

And the recess 10 inside the upper wall 5 is on the upper side, and the seeding device is
Seeds 11 are sown in each recess 10 at the bottom of 54, and the seeded nursery box 61 is again supplied to the horizontal transfer table 12 and the soil is supplied between the pots 2 (Fig. 13). .

Then, if the sieve soil 9 in the hopper 15 of the soil supply device 14 runs out during the transfer of the placing plate 8 to which the pot sheet 1 is fitted, the pot sheet 1 to which the sieve soil 9 is not supplied is light,
Due to the fact that the light pot sheet 1 is distorted and lifted up, and the leveling brush 46 is rotating in the direction opposite to the traveling direction of the pot sheet 1, the front end of the pot sheet 1 is lifted by the leveling brush 46 and leveled. It may get wrapped around the brush 46.

Further, the leveling brush 46 is positioned at a high position when the floor soil is supplied because the mounting plate 8 is thick, and when the soil is supplied, the seedling raising box 61 is thinner than the mounting plate 8 described above. Position it low, but accidentally lower the leveling brush 46
When the mounting plate 8 to which the pot sheet 1 is fitted is moved after the position is set, the pot sheet 1 may be wound around the leveling brush 46 because the position of the leveling brush 46 is low.

According to the present invention, a lower surface 58 is formed on the lower surface of the earthing plate 51 in parallel with the upper surface of the pot sheet 1, and a rear end of the pressing plate 57 has a guide portion 59 that is inclined so as to become higher toward the rear. Since the pot sheet pressing device 56 is provided and the lower surface 58 of the pressing plate 57 is positioned above the lower end of the brush 50 of the leveling brush 46, the pot sheet 1 to which the sieve soil 9 is not supplied is transferred. However, the front end portion of the pot sheet 1 is guided by the guide portion 59 and passes below the lower surface 58. Therefore, the pot sheet 1 is prevented from being wound around the leveling brush 46.

Similarly, even when the leveling brush 46 is low, the pot sheet pressing device 56 presses the pot sheet 1 to prevent the leveling brush 46 from being wound around.

(Effect) In the present invention, a soil supply device that forms a pot sheet 1 by vertically and horizontally connecting a large number of pots 2 and supplies the potted soil 9 to the pot sheet 1 above the transport path of the pot sheet 1.
14, a pressing roll 17 for pressing down the sieve soil 9 supplied to the pot sheet 1, and a pressing protrusion 19 for pressing the center of the pot 2 of the pressed soil soil 9 to a medium degree to form a recess 48. A protrusion roll 18 provided on the circumferential surface and a leveling brush 46 for returning the protruding soil 47 generated when the pressing protrusion 19 forms the recess 48 into the recess 48 are provided, and the soil on the rotation rising side of the brush 46. A bridging plate 51 is provided, and the tip 60 of the bridging plate 51 is the brush.
A pot sheet seeding device provided with a pot sheet retainer device 56 having a desired number of pot sheet retainer plates 57 fixed to a position below the center of 46 and having the lower face 58 side extending the upper face of the pot sheet 1 rearward. Therefore, even if the soil 9 of the soil supply device 15 is lost during the work and the front end of the pot sheet 1 is transferred in a floating state, the front end portion of the pot sheet 1 is guided by the pressing plate 57. Since the portion 59 is guided below the lower surface 58 and passes therethrough, the pot sheet 1
To prevent the leveling brush 46 from being wrapped around.

Moreover, even if the position of the leveling brush 46 is low by mistake,
The pot sheet pressing device 56 prevents the leveling brush 46 from being wound around.

This has the effect.

[Brief description of the drawings]

FIG. 1 is a sectional view of a rice pot sheet, and FIG.
63-237708, a sectional view of a pot sheet for lettuce, a perspective view of FIG. 4, a sectional view of a pot sheet with a recess, and a device of FIG. A side view of the whole, FIG. 7 is a plan view of a main part, FIG. 8 is a side view of the main part, and FIG.
FIG. 10 is a diagram showing the working state of the earthing plate, FIG. 10 is a plan view of the pot sheet pressing device, FIG. 11 is a side view thereof, and FIGS. 12 and 13 are explanatory diagrams of the working state. DESCRIPTION OF SYMBOLS 1 ... Pot sheet, 2 ... Pot, 3 ... Bottom part, 4 ... Connection part, 5 ... Top wall, 6 ... Through hole, 7 ... Projection, 8 ... Mounting plate, 9 ...
Sieve soil, 10 ... Dimples, 11 ... Seeds, 12 ... Horizontal transfer stand, 13 ... Support legs, 14 ... Soil supply device, 15 ... Sieve soil supply hopper, 16 ... Delivery belt, 17 ... First pressing roll, 18 ... Projection roll , 19 ... Pressing protrusion, 20 ... Arm, 21 ... Horizontal rotation axis, 22 ... Horizontal rotation axis, 23
... Roll, 24 ... Supply unit, 25 ... Transfer device, 26 ... Gear, 27 ...
Gears, 28 ... Endless transfer chains, 29 ... Transfer protrusions, 30 ... Frames, 31, 32 ... Rotating shafts, 33 ... Arms, 34 ... Abutment parts, 35 ... Rear wall, 36 ... Leg parts, 37 ... Sliding contact parts, 38 ... pin, 39 ... Yokomo, 40 ...
Guide plate, 41 ... front inclined part, 42 ... inclined surface, 43 ... guide part,
44 ... rear inclined part, 45 ... guide rod, 46 ... leveling brush, 47 ...
Overhanging soil, 48 ... Recess, 49 ... Arm, 50 ... Horizontal rotation axis, 51
… Soil board, 52… Second compression roller, 53… Reversing part, 54…
Seeding device, 55 ... Transfer roll, 56 ... Pot sheet pressing device, 57 ... Pressing plate, 58 ... Lower surface, 59 ... Guide part, 60 ... Tip, 61
… A nursery box.

Claims (1)

(57) [Claims] 1. A soil feeding device for feeding a large number of pots 2 vertically and horizontally to form a pot sheet 1 and supplying a soil 9 to the pot sheet 1 at a position above a transfer path of the pot sheet 1.
14, a compression roll 17 for compressing the sieve soil 9 supplied to the pot sheet 1, and a pressing projection 19 for pressing the center portion of the pot 2 of the compressed soil soil 9 to a medium degree to form a recess 48. A protrusion roll 18 provided on the circumferential surface and a leveling brush 46 for returning the protruding soil 47 generated when the pressing protrusion 19 forms the recess 48 into the recess 48 are provided, and the soil on the rotation rising side of the brush 46. A bridging plate 51 is provided, and the tip 60 of the bridging plate 51 is the brush.
A pot sheet seeding device provided with a pot sheet retainer 56 in which a desired number of pot sheet retainer plates 57 having a shape that extends to the rear of the upper face of the pot sheet 1 on the lower side of the center of the pot sheet 46 is provided.