JPH044803A - Transplanter seedling box positioning device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a seedling box positioning device for a transplanter.

(Prior art) In a transplanting machine used for transplanting seedlings of cabbage, lettuce, etc., a seedling box is intermittently fed by a seedling box feeding means, and the seedlings in a horizontal row of pots of the seedling box are pushed out by a seedling pushing means. There is one that is extruded and supplied to the planting means side.

Conventionally, in this type of transplanting machine, the seedling box feeding means simply sends the seedling box, and no special positioning measures have been taken.

(Problem to be solved by the invention) When a conventional transplanter uses a seedling box made of thin material such as synthetic resin, the seedling box deforms due to the weight of the soil in the pot. The feed rate is not constant, and when the seedling extrusion means pushes out the seedlings in the pot part, there is a risk that the seedling extrusion means will come into contact with the pot part and damage the seedlings, the seedling box, etc. In addition, if the seedling box is made of thin and soft material, the top of the bed is tightly attached to the inside of the pot by roots, etc., so pushing with a pusher will only deform the seedling box, and the top of the bed of seedlings will not come off from the pot. There was also.

The present invention was provided for the purpose of solving such conventional problems.

(Means for Solving the Problem) The present invention intermittently sends the seedling box 40 by the seedling box feeding means 9, and pushes out the seedlings 25 in the pot portions 39 in a horizontal row of the seedling box 40 by the seedling pushing means 10. In a transplanter configured to feed the seedlings to the planting means 12 side, the extruded pot portion 39 is placed so that the po-nod portion 39 coincides with the seedling extrusion means 10.
A seedling box positioning means 61 is provided to correct the position of the seedling box in the feeding direction by fitting into the seedling box positioning means 61, and the seedling box positioning means 61 and the seedling pushing means 10 are arranged so that the seedling box positioning means 61 can be fitted into and removed from the pot part 39. It is linked.

(Function) The seedling box positioning means 61 operates in conjunction with the seedling pushing means 10, fits into the pot portion 39 of the seedling box 40, and corrects the position of the seedling box in the feeding direction. Therefore, the seedlings 25 in the bot part 39 of the seedling box 40 can be pushed out.

Further, since the seedling box positioning means 61 is fitted into the pot portion 39, the seedling box 40 is not easily deformed when the seedlings 25 are pushed out by the seedling pushing means 10 (and the pushing out of the seedlings 25 is facilitated).

(Example) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 9 shows the entire transplanter. In this Figure 9, 1
is a machine frame, which has front wheels 2 and rear wheels 3, as well as a steering wheel 4, an engine 5, a driver's seat 6, etc. Reference numeral 7 denotes a planting frame, which is arranged at the front lower side of the machine frame 1, and this planting frame 7 includes a seedling box mounting table 8, a seedling box feeding means 9, a seedling pushing means 10, a seedling feeding means 11, and a planting frame 7. Attachment means 12, soil covering ring 13
, groove cutter 14, etc. are provided, respectively. The planting means 12 includes a pair of left and right planting discs 15 made of an elastic material such as rubber.
are rotatably provided, and the seedlings supplied between the planting discs 15 are planted into the planting groove.

As shown in FIG. 5, the seedling feeding means 11 includes a chain 18 wound between a pair of left and right sprockets 16 and 17, and an oblong guide plate 19 arranged in parallel near the rear of the chain 18. , a large number of seedling holders 20 connected to the chain 18 at equal intervals and slidable along the periphery of the guide plate 19.
It is composed of. A notch 21 is formed in the guide plate 19 so that the portion corresponding to the pair of planting disks 15 of the planting means 12 is lowered. As shown in FIGS. 1 and 2, each seedling holder 20 has a shallow 0-shape, and is rotatably supported by a pin 22 at the lower part of the front end to a bracket 23 of the chain 18, and is supported by a spring. 24 so that the rear end side is urged into sliding contact with the guide platework 9. When the seedling holder 20 passes through the front side of the seedling pushing means 10, it is supported horizontally by the guide plate 19, and when it reaches the notch 21, it is pumped around the pin 22 as shown in FIG. Means 1 for planting seedlings 25 on an upward slope
The seedlings are supplied by being dropped between the pair of planting disks 15 of 2 from the floor ±26 side. The drive side sprocket 16 is attached to a transmission shaft 28 via an electromagnetic clutch 27, and when the electromagnetic flanch 27 is connected, the chain 18 rotates in the direction indicated by the arrow a.

The seedling box feeding means 9 and the seedling pushing means 10 are the seedling feeding means 11
It is located near the rear of. As shown in FIGS. 1 and 2, the seedling box feeding means 9 includes a pair of left and right guide rails 29 that insert the left and right edges of the seedling box 40 and support and guide the seedling box 40 in a vertically slidable manner. Feed holes 3 formed on both left and right ends
a feed sprocket 31 that rotates while engaging with the
A feed sprocket 310 that engages the seedling box 40 inserted into the guide rail 29 from above and loaded into the feed hole 3o.
It is designed to be sent downward by rotation. The guide rail 29 is a pillar 32 that is erected in an inclined manner on the planting frame 7.
installed on. A pair of left and right feed sprockets 31
is rotatably supported on a drive shaft 34 via a cylindrical shaft 33, and interlocked with the drive shaft 34 via an electromagnetic clutch 35 in a freely connecting/disconnecting manner. The drive shaft 34 is installed laterally between the columns 32 and is interlocked with the transmission shaft 28 via a bevel gear mechanism 37 in a gear case 36 (see FIG. 7).

The seedling box 40, as shown in FIGS. 1, 2, and 5,
A large number of tapered pot parts 39 having an overall rectangular shape and an opening 38 at the bottom are formed vertically and horizontally, and the seedlings 25 are raised with a bed 26 placed in the pot parts 39. Note that the seedling box 4o is loaded between the guide rails 29 of the seedling box feeding means 9 so that the seedlings 25 face forward.

The seedling pushing means 10 moves the seedlings 25 in a horizontal row in the seedling box 40 to each seedling holder 20 near the upper side of the seedling holder 20 of the seedling sending means 11.
It is for extruding upward. As shown in FIGS. 1 and 2, this seedling pushing means 10 includes a push rod 41 arranged corresponding to the pot portions 39 in a horizontal row of the seedling box 40, and an arm 42 that supports the push rod 41. , has a movable plate 43 fixed to one end of the arm 42, and a guide rail 45 that supports the movable plate 43 through guide rollers 44 so as to be movable back and forth. The movable plate 43 is connected to a crank arm 48 of a crankshaft 47 via a rod 46, and as the crankshaft 47 rotates, the push rod 41 moves back and forth to push the seedlings 25.
C2 is designed to extrude the floor ±26. crankshaft 4
7 is rotatably supported by a support plate 49 fixed to the column 32, and is interlocked with the drive shaft 34 via a gear train 50 and an electromagnetic clutch 51 (see FIG. 7).

As shown in FIG. 7, the drive shaft 34 is operatively connected to a motor 53 via a chain transmission mechanism 52. As shown in FIG.

An indexing plate 57 is fixed to the drive shaft 34 and constitutes a pulse generator 56 together with the proximity switches 7 and 54 and 55. As shown in FIG. 8, the index plate 57 has half of its outer periphery cut out, and an inward cutout 58 is formed at one end of the cutout.

Proximity switches 54 and 55 are mounted on the fixed side facing the index plate 57, and in synchronization with the rotational speed of the drive shaft 34, the proximity switches 54 generate pulses with a width of approximately 180'' every rotation. Further, the proximity switch 55 is configured to generate a narrow width pulse each time it rotates.

Note that 59 is a limit switch for sensing the seedling box, which is attached to the guide rail 29 or the like.

A seedling box stopper 60 shown in FIG. 3 and a seedling box positioning means 61 shown in FIGS. 1 and 2 are provided near the bottom of the seedling pushing means 10.

The seedling box stopper 60 contacts the lower edge of the seedling box 40 loaded on the guide rail 29 as shown in FIG. It is for. The seedling box stopper 60 is inserted into and supported by a bracket 62 fixed to the support column 32 so as to be slidable back and forth, and is biased rearward by a spring 63. The seedling box stopper 60 is connected to a lever 65 via the lock 4. The lever 65 is pivotally supported on the support plate 49 by a pin 66, and is urged by a spring 69 to be able to switch unstably into contact with the pins 67, 68.

Therefore, by operating this lever 65 back and forth, the seedling box stopper 60 can be moved in and out of the seedling box 4 to engage and disengage it. Note that 70 is a limit switch for lever detection, which is activated when the seedling box stopper 60 is released.

The seedling box positioning means 61 works in conjunction with the seedling pushing means 10 to position the seedling box so that the opening 38 of the pot part 39 coincides with the push rod 41 before the push rod 41 pushes the floor ±26 of the seedling 25. This is for vertical correction. This seedling box positioning means 61 includes a positioning roller 71 that can be freely fitted and removed from the front side of the extruded pot part 39, and an arm that supports the roller 71 and is pivotally connected to the guide rail 29 etc. with a pin 72 so as to be able to swing back and forth. 73 and a connecting rod 75 that connects the arm 73 to the crank arm 74 of the crankshaft 47. As shown in FIG. 6, the connecting rod 75 is composed of a cylindrical body 76 and a loft 77 inserted into the cylindrical body 76, and is configured to be expandable and contractible within the range of the elongated hole 7B by a pin 79 and a spring 80. The seedling box positioning means 61 is provided at both left and right ends, the center, or both of the seedling box 40.

FIG. 10 shows a block diagram of the control system. In FIG. 10, 81 is a main switch, and 82 is a planting start switch. Reference numeral 83 denotes a control means that controls the motor 53 according to a predetermined control sequence using signals from the switches 54, 55, 59, 70, 81, 82, and controls the electromagnetic clutch 27.
．． 35.51 is connected intermittently.

The control means 83 is constituted by a microcomputer or the like having a function of counting pulses from the proximity switch 54 as well as other arithmetic processing functions.

Next, the operation will be explained with reference to the time chart shown in FIG. In the transplanting operation, first, the seedling box 40 is inserted and loaded from above between the guide rails 29 of the seedling box feeding means 9, and is locked by the seedling box stopper 60. At this time, if the main switch 81 is turned on, the limit switch 59 detects the seedling box 40. When the zero-order start switch 82 is turned on, the motor 53 is rotated via the control means 83. Release the seedling box stopper 60. At this time, limit switch 7° is activated. When the motor 53 rotates, the drive shaft 34 rotates and the index plate 57 of the pulse generating means 56 rotates, so the proximity switch 54.55 rotates.
generates pulses intermittently, and the control means 83 enters a control operation for each electromagnetic clutch 27.3551.

That is, when the drive shaft 34 and the indexing plate 57 rotate, the control means 83 gives an operation signal to the electromagnetic clutch 5 of the seedling pushing means 0, so the electromagnetic clutch 51 is connected and the drive shaft 3
4, the crankshaft 47 rotates. As a result, the movable plate 43 moves back and forth once along the guide rail 45, and the push rod 41 moves toward the bottom of the pot section 39 in the horizontal row at the bottom.
26 from behind to move the seedling 25 onto the seedling holder 2o of the seedling feeding means 11 which is in a stopped state. At this time, the arm 73 of the seedling box positioning means 61 swings in conjunction with the roller 71.
is located below the seedling box 4o and has no effect.

Next, when a pulse from the proximity switch 54,55 is input, the control means 83 gives an operating signal to the electromagnetic clutch 27 of the seedling feeding means 12, and the electromagnetic clutch notch 27 is connected. Therefore, the chain 18 of the seedling feeding means 11 rotates, and the seedlings 25 on the seedling holder 20 are sent by one pinch toward the planting means 12 side.

Below, each time a pulse is input from the proximity switch 54.55,
The control means 83 intermittently applies operation signals to the electromagnetic clutch 27 for the number of seedlings in a horizontal row of the seedling box 40, and sends the seedlings 25 on each seedling holder 20 to the planting means 12 side one by one. and,
When the seedling holder 20 reaches the notch 21 of the guide plate 19,
The seedling holder 20 is rotated around the bin 23 by the spring 24,
A pair of planting discs 1 of the planting means 12 on which seedlings 25 are placed
Since the seedlings 25 are fed by dropping the seedlings into the planting groove during 5 minutes, the seedlings 25 are planted into the planting groove as the planting disk 15 rotates.

When the seedling feeding means 11 starts feeding the last seedling 25, the control means 83 gives an operation signal to the electromagnetic clutch 35 of the seedling box feeding means 9, and this electromagnetic clutch 35 is connected. For this reason, the feed stopper 31 is rotated by the power of the drive shaft 34, and the seedling box 40 is sent downward so that the second bottom pot portion 39 of the seedling box 40 corresponds to the push rod 41 of the seedling pushing means 10.

When the feeding operation of the last seedling 25 by the seedling feeding means 11 is completed, the seedling 25 on the seedling holder 20 is laterally disengaged from the front of the seedling pushing means 1o, so that the control means 83 is activated by the electromagnetic clutch 51.
The electromagnetic clutch 51 is connected, and the seedling pushing means 10 pushes out a row of seedlings 25 in the lower second row onto the seedling receiver 20.

On the other hand, when pushing out the seedlings from the second lower stage onward, the seedling box positioning means 61 operates to correct the position of the seedling box 40 up and down. That is, when the crankshaft 47 rotates, it pulls the arm 73 via the Rondo door 5, so the arm 73 swings around the bottle 72, and the roller 71 fits into the extruded pot portion 39. Therefore, even if the seedling box 40 is slightly misaligned vertically when feeding the seedling box, the roller 71
9 moves the seedling box 40 up and down, so the tip of the push rod 41 is surely aligned with the opening 38 of the pot part 39, and there is no fear that the push rod 41 will come into contact with the pot part 39. . Further, since the seedling box 40 is pressed against the seedling box 40 by the roller 71, the bed soil 26 can easily come out from the pot portion 39 of the seedling box 40.

During the transplanting operation, even if the start switch 82 is turned off, the motor 53 continues to rotate until the current seedling feeding operation is completed, and then stops. Furthermore, since the control means 83 stores the number of planted plants on the counter, when the start switch 82 is turned on again, counting starts from the next number.

If the limit switch 59 detects that the seedling box is out, the seedling box 4
After pushing out and planting the last horizontal row of seedlings 25, the motor 53 stops. Therefore, it is only necessary to load another seedling box 40 after that.

In the embodiment, the seedling box 40 is sent while being straight, but the guide rail 29 may be formed in an arc shape and the seedling box 40 may be curved in an arc shape to guide the seedling box 40. In this case, if the pot part 39 is made to have a protruding shape toward the front, the front opening side of the pot part 39 will widen, making it easier to push out the floor 26.

Further, the guide rail 29 may be provided horizontally.

Furthermore, although the seedling box 40 is arranged so that the seedlings 25 face forward, this is determined by the relationship with the planting means 12, and the seedlings 25 may also be arranged so as to face backward.

Furthermore, although the planting means 12 adopts a disc type, a cylinder type type in which an inverted conical cylinder into which seedlings are dropped and supplied is stuck in the soil and then the bottom is opened and the seedlings are planted is also available. May be adopted.

(Effects of the Invention) According to the present invention, the seedling box positioning means 61 fits into the extruded pot part 39 and corrects the position of the seedling box in the feeding direction so that the pot part 39 coincides with the seedling pushing means 10. The seedling box positioning means 61 and the seedling pushing means 10 are interlocked so that the seedling box positioning means 61 can be fitted into and removed from the pot part 39.
When pushing out the seedlings 25 inside, the seedling extruding means 10 can reliably push out the seedlings 25 without coming into contact with the pot part 39, and the seedling box is not easily deformed during extrusion, so that the seedlings 25 can be pushed out easily. can.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side sectional view of the main part, FIG. 2 is a sectional side view of the same, FIG. 3 is a side sectional view of a part of the stopper, and FIG. 4 is a side sectional view of the seedling feeding means. A side sectional view, FIG. 5 is a schematic front view, and FIG. 6 is a mouth. Fig. 7 is a configuration diagram of the power system, Fig. 8 is a sectional view of the pulse generator, Fig. 9 is a side view of the whole, Fig. 10 is a block diagram, and Fig. 11 is a time chart. . 9... Seedling box feeding means, 10... Seedling extrusion means, 11
... Seedling feeding means, 12... Planting means, 25... Seedling, 27, 35.51... Electromagnetic clutch, 26... Soil bed, 34... Drive shaft, 39... Pot part, 40...
・Seedling box, 41... push rod, 56... pulse generator,
61... Seedling box positioning means, 83... Control means.

Claims (1)

[Claims] (1) The seedling box (40) is intermittently fed by the seedling box feeding means (9), and the seedlings (25) in the pot portions (39) in a horizontal row of the seedling box (40) are moved by the seedling pushing means (10). In a transplanting machine configured to extrude and supply to the planting means (12) side,
A seedling box positioning means (61) is provided which fits into the extruded pot part (39) and corrects the position of the seedling box in the feeding direction so that the pot part (39) coincides with the seedling pushing means (10), This seedling box positioning means (61) is the pot part (39)
A seedling box positioning device for a transplanter, characterized in that a seedling box positioning means (61) and a seedling pushing means (10) are interlocked so that the seedling box can be inserted into and removed from the seedling box.