JP5843365B2 - Full sensor device - Google Patents

Description

  The present invention relates to a full sensor device that is provided on a chute that guides the soil to drop from above the hopper of the earthing device to the center of the hopper and detects the fullness of the soil in the hopper.

  Examples of the full sensor device that detects the fullness of the soil in the hopper of the earthing device include those that detect the fullness and the sky by a sensor provided in the hopper (Patent Documents 1 to 3).

Japanese Patent Laid-Open No. 2-3238 JP-A-6-261638 Japanese Patent Laid-Open No. 7-327511

  However, it is necessary to use an expensive proximity sensor, optical sensor, or pressure sensor as a sensor in order to detect soil fullness or sky using a sensor provided in the hopper. There is such a problem.

  In addition, in a configuration that detects soil fullness or sky with a sensor provided in the hopper, the sensor will be buried in the soil, so especially in the case of soil with much moisture, the soil will adhere to the sensor and the sensor will not work well In some cases, there is a problem that the sensor needs to be provided with a waterproof means, which is expensive.

In order to solve the above-mentioned problem, the full sensor device of the present invention includes:
A fullness sensor device that is provided on a chute that guides the soil to drop from above the hopper of the earthing device to the approximate center of the hopper, and detects the fullness of the soil in the hopper,
An opening or notch formed on the lower end side of the slope where the soil in the chute slides down,
A movable plate disposed in the opening or notch and guiding the soil together with the slope;
A support means for supporting the movable plate so as to be reciprocally movable between an operation detection position substantially flush with the slope and a stop detection position lowered substantially below the operation detection position;
An urging means for urging the movable plate to be on the operation detection position side against a load when the soil slides down the slope;
When the surface of the soil in the hopper reaches the lower end side of the chute, when the movable plate moves to the stop detection position due to the weight of the soil that is difficult to be discharged from the chute and rides on the movable plate, A full detection means for detecting fullness.

According to this configuration, since it is possible to mechanically detect that the soil has run on the movable plate, it can be realized with a simple configuration at low cost.
Also, since the soil that has ridden on the movable plate falls as soon as the soil in the hopper is reduced, the soil lands on the movable plate only when it is full. For this reason, even in the case of soil with a lot of moisture, it is difficult to adhere to the movable plate, and trouble due to soil adhesion is unlikely to occur.
Further, among the components of the present invention, it is only the movable plate that needs to be in contact with the soil, and even in the case of soil with a lot of moisture, unlike the conventional example, it is particularly necessary to provide waterproof means. There is no.

As the full sensor device,
The movable plate exemplifies a mode in which the upper surface is disposed slightly lower than the back surface of the opening or notch.

  According to this configuration, it is possible to prevent soil from being clogged or pinched between the movable plate and the opening or notch.

As the full sensor device,
An example in which the full detection means is not detected as full until a predetermined time elapses after it is detected that the full detection means is no longer full is illustrated.

  According to this configuration, it is possible to prevent a problem that the detection of whether or not the full detection means is full is frequently repeated due to increase or decrease of the soil in the hopper when full.

  The full sensor device according to the present invention can be realized at a low cost with a simple configuration, and has an excellent effect of being able to stably detect fullness even in soil with a large amount of moisture.

1 is a side sectional view of a soil supply device that includes a full sensor device according to an embodiment of the present invention and supplies soil to a soiling device. It is a front view of the same soil supply apparatus. It is a perspective view of the chute | shoot of the soil supply apparatus provided with the same full sensor apparatus. It is a sectional side view showing the state where the full sensor device is not detecting fullness. It is a sectional side view showing the state where the full sensor device is detecting fullness. It is a perspective view which shows the example of a change of the full sensor apparatus of this invention. It is a sectional side view showing the state where the full sensor device is not detecting fullness. It is a block diagram which shows another full sensor apparatus which detects the fullness of the soil in the hopper of a soil putting apparatus, (a) is operation | movement when not full, (b) has each shown operation | movement when it is full. .

  1 to 5 show a soil supply device 8 including a full sensor device 1 according to an embodiment of the present invention, and a soil putting device 9 that receives the supply of soil S from the soil supply device 8.

  As shown in FIGS. 1 and 2, the earthing device 9 is a transfer table 11 that horizontally conveys a frame case C fitted with a plurality of seedling pots P, which are soft seedling containers made of synthetic resin, from upstream to downstream. And a clay hopper 12 disposed above the transfer table 11, a pressure reducing roller 13 and a soil leveling means 14 disposed in a space between the clay hopper 12 and the transfer table 11.

  The soil hopper 12 is configured such that the soil S is replenished from the upper opening 12a, temporarily stored therein, and taken out from the lower opening 12b by the rotating belt 31 stretched over the rotating rolls 29 and 30. Yes.

  The soil supply device 8 includes a collection hopper 17 installed below the transfer table 11, a soil supply conveyor 18 that is erected on the side of the soil hopper 12, the bucket 60 circulates and rotates, and a soil supply conveyor 18. A soil introduction hopper 19 for introducing new soil S is provided on the side.

  As shown in FIGS. 1 and 2, the earth supply conveyor 18 is provided with rotating gears 57 and 58 driven by a motor 56 above and below the housing 70, and a chain 59 is bridged between the rotating gears 57 and 58. In addition, a large number of buckets 60 are attached to the chain 59. An upper discharge portion 61 is provided on the side facing the upper opening 12a of the clay hopper 12 above the housing 70, and a chute 62 formed in a rectangular cross-section from the upper discharge portion 61 is placed in the soil. It is directed to the upper opening 12 a of the hopper 12. With this configuration, the chute 62 guides the soil to fall from above the soil hopper 12 to the approximate center of the soil hopper 12.

  As shown in FIGS. 3 to 5, the full sensor device 1 is provided on the chute 62 and detects the fullness of the soil in the clay hopper 12, and the lower end side of the slope 62 a on which the soil slides in the chute 62. An opening 2 formed in the opening 2, a movable plate 3 that is disposed in the opening 2 and guides the soil S together with the slope 62a, and that the movable plate 3 is substantially flush with the slope 62a. A support arm 4 as a support means for supporting reciprocating movement between a position A1 (see FIG. 4) and a stop detection position A2 (see FIG. 5) lowered substantially below the operation detection position A1, and the support A biasing means 5 for biasing the arm 4 toward the operation detection position A1 and a fullness detection means 6 for detecting that the arm 4 is full based on the position of the movable plate 3 are provided.

  The opening 2 is formed in a rounded quadrangle in this example, but this is only an example, and it can be appropriately formed in a circular shape, a polygonal shape, an irregular shape, or the like.

  The movable plate 3 is formed in an outer shape matching the shape of the opening 2 and is formed in a rounded quadrilateral in this example. Moreover, the magnitude | size of the movable plate 3 is formed smaller than the opening part 2 in this example. The arrangement position of the movable plate 3 in the plane of the slope 62a is a position close to the upper edge side of the opening 2 so that the gap between the lower edge of the movable plate 3 and the lower edge of the opening 2 is widened. I have to. Further, the arrangement position of the movable plate 3 in the normal direction of the slope 62 a is such that the upper surface of the movable plate 3 is slightly lower than the back surface of the opening 2.

  The support arm 4 has an upper end supported on the upper side of the opening 2 on the bottom surface of the chute 62 via a support shaft 4a so as to be rotatable up and down, and a movable plate 3 is attached to the lower end.

  The urging means 5 urges the movable plate 3 to be on the operation detection position A1 side against the load when the soil S slides down the slope 62a.

  The fullness detecting means 6 is configured such that when the surface of the soil S in the clay hopper 12 reaches the lower end side of the chute 62, it is difficult to be discharged from the chute 62, and the weight of the soil S that rides on the movable plate 3 When the movable plate 3 moves to the stop detection position A2, the movable plate 3 is configured to detect that it is full. Further, the full detection means 6 is configured not to detect that it is full until a predetermined time has elapsed after detecting that it is no longer full. The predetermined time is preferably set as appropriate according to the soil supply speed by the soil supply conveyor 18, the earthing speed of the earthing device 9, and the like. Although not particularly limited, in this example, setting the predetermined time to 5 to 10 seconds is exemplified.

  As shown in FIGS. 4 and 5, the full sensor device 1 of the present invention is connected to the motor 56 of the soil supply conveyor 18 via the control unit 7. The control unit 7 is configured to stop the driving of the motor 56 when the full sensor device 1 detects fullness, and starts driving the motor 56 when the full sensor device 1 does not detect fullness.

  Next, the operation of the full sensor device 1 of the present invention will be described. As shown by a solid line in FIG. 4, when the clay hopper 12 is not full, the soil S slides down the slope 62 a of the chute 62 and is put into the clay hopper 12. Then, as shown by a two-dot chain line in FIG. 4, after the surface of the soil S piled up in the clay hopper 12 reaches the chute 62, the rear edge of the chute 62 is caused by the lower edge of the opening 2. The movement of the soil S is restricted, and the soil S accumulates in front of the chute 62. Thereby, a space in which the movable plate 3 can move to the stop detection position A <b> 2 is reliably formed behind the chute 62. Furthermore, as shown in FIG. 5, when the soil S of the clay hopper 12 rides on the movable plate 3, the movable plate 3 moves to the stop detection position A2, thereby detecting that the full detection means 6 is full. It is supposed to be. Then, the control unit 7 stops driving the motor 56 of the soil supply conveyor 18. Thereafter, when the soil S in the clay hopper 12 is reduced and the state returns to the state shown in FIG. 4, it is not detected that the soil is full. Then, the control unit 7 starts driving the motor 56 of the soil supply conveyor 18.

According to the full sensor device 1 of the present example configured as described above, since it is possible to mechanically detect that the soil S has landed on the movable plate 3, it can be realized at a low cost with a simple configuration. it can.
Moreover, since the soil S that has ridden on the movable plate 3 falls as soon as the soil S in the clay hopper 12 decreases, the soil S is ridden on the movable plate 3 only when it is full. Become. For this reason, even if it is the case of the soil S with much moisture, it is hard to adhere to the movable plate 3, and the trouble due to the adhesion of the soil S hardly occurs.
Further, among the constituent elements of the present invention, only the movable plate 3 needs to be brought into contact with the soil S. Even in the case of the soil S having a lot of water, unlike the conventional example, a waterproof means is particularly required. There is no need to provide it.

  Further, since the upper surface of the movable plate 3 is disposed slightly lower than the back surface of the opening 2, the soil S is clogged or sandwiched between the movable plate 3 and the opening 2. Can be prevented.

  In addition, since it is configured not to detect that the fullness detection means 6 is full until a predetermined time elapses after it is detected that the fullness detection means 6 is no longer full, the soil in the clay hopper 12 at the time of fullness is not detected. By increasing or decreasing, it is possible to prevent a problem that the detection of whether or not the full detection means 6 is full is frequently repeated.

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) As shown in FIG.6 and FIG.7, it replaces with the opening part 2, and provides the notch part 10 and is comprised so that the movable plate 3 etc. may be arrange | positioned here. In this configuration, since there is no lower edge portion in the opening 2, unlike the above-described embodiment, there is an effect of reliably forming a space in which the movable plate 3 can move to the stop detection position A2 behind the chute 62. I can't get it. However, unless the soil is very fluid, if the soil is dropped from above the soil hopper 12 to the approximate center of the soil hopper 12, as shown in FIG. Since the soil S is piled up, a space in which the movable plate 3 can move to the stop detection position A2 is formed. For this reason, even the structure which provides the notch part 10 can be put into practical use.
(2) As shown in FIG. 8, a full sensor device 80 is provided on a chute 62 (not shown) instead of the full sensor device 1 of the above embodiment. The full sensor device 80 includes a reciprocating rotation mechanism 81, a sensing bar 82 and a detection switch 83 attached to the reciprocating rotation mechanism 81. Then, the reciprocating mechanism 81 is operated at regular intervals, and if the sensing bar 82 is not turned on, it is determined that the sensing bar 82 is not full (see (a) in the figure), and the detection switch is detected when the sensing bar 82 contacts the soil S. If is turned ON, it is determined that it is full (see FIG. 5B). This full sensor device 80 can also be provided in the earthing hopper 12.

DESCRIPTION OF SYMBOLS 1 Full sensor apparatus 2 Opening part 3 Movable plate 4 Support arm 4a Support shaft 5 Energizing means 6 Full detection means 7 Control part 8 Soil supply apparatus 9 Earthing apparatus 10 Notch part 11 Transfer stand 12 Earthing hopper 12a Upper opening 12b Lower part Opening 13 Pressure reducing roller 14 Soil flattening means 17 Recovery hopper 18 Soil supply conveyor 19 Soil feeding hopper 29 Rotating roll 30 Rotating roll 31 Rotating belt 56 Motor 57 Rotating gear 58 Rotating gear 59 Chain 60 Bucket 61 Upper discharge part 62 Chute 62a Slope 70 Enclosure 80 Full sensor device 81 Reciprocating rotation mechanism 82 Sensing bar 83 Detection switch A1 Operation detection position A2 Stop detection position C Frame case P Nursery pot S Soil

Claims (3)

A fullness sensor device that is provided on a chute that guides the soil to drop from above the hopper of the earthing device to the approximate center of the hopper, and detects the fullness of the soil in the hopper,
An opening or notch formed on the lower end side of the slope where the soil in the chute slides down,
A movable plate disposed in the opening or notch and guiding the soil together with the slope;
A support means for supporting the movable plate so as to be reciprocally movable between an operation detection position substantially flush with the slope and a stop detection position lowered substantially below the operation detection position;
An urging means for urging the movable plate to be on the operation detection position side against a load when the soil slides down the slope;
When the surface of the soil in the hopper reaches the lower end side of the chute, when the movable plate moves to the stop detection position due to the weight of the soil that is difficult to be discharged from the chute and rides on the movable plate, A full sensor device comprising full detection means for detecting full.   2. The full sensor device according to claim 1, wherein an upper surface of the movable plate is disposed slightly lower than a rear surface of the opening or the notch.   3. The full sensor device according to claim 1 or 2, wherein the full sensor device is configured not to detect that it is full until a predetermined time elapses after it is detected that the full detector is not full.

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