JPS627047Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of an automatic seedling box feeding device in a seeding device.

[Technical background of the invention]

Various devices have been proposed for automatically supplying seedling trays to sowing machines. In particular, mechanisms that supply empty seedling trays stored in a magazine onto a transport body, starting from the bottom up, are commonly seen in technical fields such as transportation and loading.

[Purpose of invention]

The present invention aims to provide a seedling box feeding device suitable for feeding seedling boxes.

[Structure of the idea]

The structure of the present invention to achieve the purpose of the invention is as follows:
A magazine for accommodating a large number of seedling boxes in stacks is provided above the transport start end of the seedling box transporter suspended horizontally on the frame, and rotating shafts perpendicular to the frame are faced to the left and right sides of the magazine, respectively. The rotary shaft has a first semicircular catch that engages and disengages from the bottom edge of the seedling box at the lowest tier, and a second semicircular seat that engages and disengages from the side edge of the seedling box one level above the bottom tier. A first switch _S1 , which is provided in the drive electric circuit of each of the rotating shafts and turns off the drive electric circuit by contact with the seedling box, is provided in opposite directions to the magazine. At the same time, a second switch S2 is provided on the magazine below the seedling box feeder, and a second switch _S2 that is turned off by contact with the first catch seat is provided on the magazine.
This device is characterized in that a switch _S2 is connected in parallel with the first switch _S1 .

〔Example〕

Next, referring to Figure 1, to explain the details of the overall configuration of the seeding device and its functions, A is an automatic continuous feeding device for seedling boxes, B is a feeding device on the floor, C is a leveling device on the floor where the seeds are fed, and D is a feeding device on the floor. Reference numeral denotes a pressure roller, E a seeding machine, F a soil covering supply device, and C a seedling box carrier, and these devices constitute a seeding device H. In FIG. 1, five seedling boxes 1 are already on the seedling box carrier G, and the first seedling box 1 contains bedding soil 2, seeds 3, and covering soil 4, and the next Seedling box 1 is in a state where covering soil is supplied after sowing,
Further, in the next seedling box 1, the stored bed soil is leveled by a leveling device C, and the seeds 3 and water are simultaneously supplied while being compressed by a pressing roller D. In addition, the next seedling box 1 is being supplied with bed soil, and the last seedling box 1 is shown immediately after being supplied to the seedling box carrier G.

Reference numeral 5 denotes a frame on which the seedling box carrier G is horizontally mounted, and a magazine 6 for the seedling boxes 1 is provided on the starting end of the frame 5. A group of weighted seedling boxes is housed here. The bottom edge of the lowermost seedling box 1 of this seedling box group is supported at four places in total, two on each side, by a first support seat 7 having a semi-circular diameter, so that the seedling box group is The edge or side surface of the seedling box 1 one level above the bottom has a diameter smaller than that of the semicircular first seat 7, and is provided on the same rotating shaft 8 in the opposite direction. It is supported by a second seat 9 having a semicircular diameter.

In the state shown in FIG. 1, the front end of the seedling box 1 that has just been fed from the magazine 6 onto the seedling box carrier G is on the rear end of the preceding seedling box 1.
Therefore, the first switch _S1 , which turns off the circuit upon contact with the bottom surface of the seedling box 1, is in an on state because it is in a non-contact state with the seedling box 1. Therefore, the motor 10 mounted on the frame 5 is rotating, and the first and second seats 7, 9 are rotated through the mechanism of the pulley 11, belt 12, pulley 13, sprocket wheels 14, 15, and chain 16. Rotating shaft 8 with
is rotationally driven. The seedling box carrier G is continuously operated, but the tip of the final seedling box 1 is prevented from following the preceding seedling box by a stopper 17 provided at the front end of the lower part of the magazine 6. 1 moves forward and the sharing of the seedling boxes 1 is released, the final seedling box 1 is placed on the seedling box carrier G, the first switch _S1 is turned off, and the motor 10,
And all interlocking mechanisms related to this will stop.
The rotation of the rotating shaft 8 stops after one revolution. The reason why it stops after one rotation will be explained later.

At this time, each of the first seats 7 engages with the bottom edge of the lowermost end of the seedling box group to support the entire seedling box group. Although there is a delay gap between the seedling box 1 mounted on the seedling box carrier G and the preceding seedling box, the seedling box 1 is placed at the starting end of the seedling box carrier G, and Due to the rotating action of the large-diameter rollers 18 with which the midway portion of the bottom comes into contact first, this final seedling box 1 is sent by the circumferential speed action of the rollers 18 that is faster than the conveyance speed of the preceding seedling box 1.
The seedling box advances until the delay gap disappears, that is, until the front edge comes into contact with the rear end of the preceding seedling box 1, and thereafter it is fed at the same speed as the preceding seedling box 1. When this last seedling box 1 advances and its rear end passes over the first switch _S1 , the first switch _S1 is turned on and drives the motor 10 again to rotate the rotating shaft 8. , while dropping and feeding the seedling box 1 in the lowest row onto the seedling box carrier G, the second receiving seat 9 is engaged with the end or side surface of the seedling box one step above the seedling box 1; The seedling box group is held until the first receiving seat 7 is in a state where it can be stored.

Then, the bedding soil 2 in the hopper 21 is supplied and stored in the seedling box 1 in a semicylindrical shape by the action of the supply belt 19 provided in the bedding soil supply device B and the adjustment member 20. The stored bed soil 2 is leveled so as to be flush with the peripheral surface of the seedling box 1 by a brush 22 of a leveling device C that reciprocates in a fan-shape in the left and right horizontal directions. The leveled floor soil 2 is compressed by a pressing roller D whose one end is pivotally supported by a frame. On this compacted floor soil, Hopper 23
The seeds 3 in the container are fed in fixed amounts by sliding on the guide plates 25 and 26 by the sending roller 24, and water is constantly supplied from the water supply pipe 27 to overflow the water in the container 28, and this water is poured into the container 28. It is supplied onto the guide plates 25, 26 and onto the bed soil together with the seeds 3, and watered at the same time as the seeding.

Next, as the final stage, cover soil 4 in the hopper 29.
is supplied into a rocking box 30 that always rocks in the horizontal direction, and a large number of holes 31 provided in the bottom of the rocking box 30
Since the bottom surface of the rocking box 30 is close to the peripheral surface of the seedling box, it also provides a slitting effect, and the surface of the covering soil is leveled and transferred to the seedling box. The sowing work has been completed.

The seedling box carrier G includes two parallel V-belts 32, a guide plate 33 for preventing downward bending of the V-belts 32, a pulley 34 coaxial with the large-diameter roller 18, and a belt 35. , motor 36. Further, adjustment screws 38 are provided at the lower ends of the legs 37 of the frame 5 on which the seedling box carrier G is mounted.

Next, we will explain the structure and operation in which the rotating shaft 8 stops after one rotation.As is clear from FIG. Although the second catch 9 is removed from the seedling box when the first catch 7 is resting on the bottom of the seedling box 1, the rotation of the rotating shaft 8 is made sure to stop at 360 degrees. In order _to
By connecting this second switch _S2 in parallel with the first switch _S1 in the circuit of the motor 10, even if the first switch _S1 turns on and off slightly early or late, , the rotating shaft 8 is turned by the on/off action of the first switch _S1 and the second switch _S2 .
The circuit is configured to stop after 360 degrees, that is, one rotation.

Although not particularly shown, it is desirable to provide a friction clutch or the like in the interlocking mechanism of the motor 10 to prevent the rotating shaft 8 from moving. Furthermore, as shown in FIG. 4, the second seat 9 is made of a thick elastic material such as rubber, and the friction effect of pressing it against the side surface of the seedling box 1 supports the group of seedling boxes. It is also possible.

Although not shown, since the width of the seedling box 1 varies depending on the manufacturer, the rotating shaft 8 is made movable in the left and right directions with respect to the frame 5, and the frame constituting the magazine 6 is It is possible to adjust the movement.

[Effect] As described above, according to the present invention, the bottom edge of the lowermost seedling box is supported by the semicircular first supports facing in opposite directions, and the first support seat is rotated by approximately half a rotation of the rotating shaft. By engaging the two catch seats with the periphery or side surface of the seedling box one level above the bottom tier, the unrestrained seedling box at the bottom tier can be dropped and fed onto the carrier. Then, the rotating shaft that continues to rotate further rotates once and then stops, bringing the first and second seats to the initial starting state as shown in Figure 3, and the remaining seedling boxes can be reliably supported. .

Further, the driving of the rotating shaft equipped with the first and second seats and the one-rotation stopping action are such that the first switch is turned off when it comes into contact with the seedling box, and it is turned off when it comes into contact with the first seat. Since this is done by the second switch, the lowest seedling box in the magazine is not fed until the rear end of the last seedling box passes the first switch. The practical effects are great, such as the fact that it does not cause problems.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view of the seeding device, Fig. 2 is a partially cutaway side view of the seedling box feeding device, Fig. 3 is a partially cutaway plan view of the same, and Fig. 4 is a part of another embodiment. It is a notch side view. A... Automatic continuous feeding device for seedling boxes, G... Seedling box carrier, 1... Seedling box, 5... Frame, 6... Magazine, 7... First catch, 8... Rotating shaft, 9 ...Second catch, 10...Motor, 11...Pulley, 1
2... Belt, 13... Pulley, 14, 15...
...Sprocket wheel, 16...Chain, 1
7... Stopper, S ₁ ... First switch, S ₂ ...
Second switch.

Claims (1)

[Scope of Claim for Utility Model Registration] (a) A magazine for accommodating a large number of seedling boxes in stacks is provided above the transport start end of a seedling box transporter suspended horizontally on a frame, (b) Each of the left and right sides of the magazine The rotating shafts vertically installed on the frame are facing, and each rotating shaft has a semicircular first catch that engages with and disengages from the bottom edge of the bottom seedling box, and a side edge of the seedling box one level above the bottom row. ,or,
(c) provided in the drive electric circuit of each of the rotating shafts,
and (d) a first switch _S1 that turns off the driving electric circuit upon contact with the seedling box is disposed on the frame below the seedling box feeding part of the magazine; A second switch _S2 is provided which is turned off by contact with the second switch S2.
A seedling box feeding device in a seeding device, characterized in that a switch _S2 is connected in parallel with the first switch _S1 .