JP5381657B2 - Powder spraying device - Google Patents

Description

  The present invention relates to a powder spraying device for spraying a fertilizer comprising a powder and a medicine (soil improver, soil disinfectant, herbicide, insecticide, etc.) while feeding it out.

  There is known a technique (see, for example, Patent Document 1) in which a plurality of feeding rolls are arranged along the same rotation axis and sprayed while feeding a granule supplied from a hopper on each feeding roll.

JP 2009-178102 A (page 4, FIG. 1)

  In a spraying mode in which a plurality of feeding rolls and a supply hopper for supplying the powders on the upper side are arranged and different types of powders are accommodated in each hopper and sprayed while being fed, one spraying switch If the configuration is such that the spraying action is immediately performed by turning on the, the different types of powders other than the target spraying agent may be simultaneously fed out or sprayed, resulting in a problem.

  According to the first aspect of the present invention, a plurality of feeding rolls 1 arranged along the same rotation axis, a supply hopper 2 to be viewed on each of the feeding rolls 1, and a granule in each of the supply hoppers 2 are provided. It has a remaining amount sensor 3 for detecting the presence or absence, and is configured so that different types of powders are fed out and sprinkled by the rotation of the separate feed rolls 1, and each of the powders in each of the supply hoppers 2 is arranged. When the remaining amount is detected simultaneously, even if the spray switch 4 is turned ON, the feed roller 1 is controlled so as not to rotate.

  The powder agent is supplied and accommodated in the supply hopper 2 and detected by the remaining amount sensor 3, and the feed roller 1 is driven to rotate, whereby the powder agent is sprinkled while being fed. At this time, the supply hopper 2 at the optimum position is selected according to the type of powder, the amount of spray, etc., and the powder for spraying is supplied, and the feeding roll 1 of the supplied supply hopper 2 is driven. To be sprayed. In addition, after the spraying operation, when the powder remaining in each supply hopper 2 is taken out and discharged, each remaining amount sensor 3 has a different powder (fertilizer and chemical) in each hopper 2. When the remaining amount is detected simultaneously, even if the spray switch 4 is pressed and turned on, the feeding roll 1 is not driven to rotate.

  The invention described in claim 2 is provided with a discharge switch 5 for taking out the powder remaining in the supply hopper 2, and when the discharge switch 5 is turned on, the feeding rolls 1 are rotated. Each powder is taken out.

  As described above, after the powder spraying operation, when there is a powder residue remaining in each supply hopper 2, by turning on the discharge switch 5, each feed roll 1 is rotated and fed. Although it is made to carry in and accommodates in an extraction container, it can pay out even if the residual amount sensor 3 has detected the residual amount in each supply hopper 2 separately at this time.

  According to a third aspect of the present invention, when the discharge switch 5 is turned on, a part of the feeding rolls 1A is driven to rotate in the forward direction, and then the other feeding rolls 1B are driven in the reverse direction to perform the feeding operation.

  When the discharge switch 5 is turned on as described above, some of the feeding rolls 1A are driven to rotate in the forward direction, and the powders remaining in the supply hopper 2A on the feeding roll 1A are fed out. Discharged. When the feeding by the feeding roll 1A is finished, the other feeding roll 1B is driven to rotate to feed and discharge the powder remaining in the upper supply hopper 2B. A granular agent is taken out and discharged separately for each feeding roll 1A, 1B.

  In the first aspect of the present invention, when different types of powders can be fed and sprayed by each feeding roll 1, the powders by the remaining amount sensor 3 of each supply hopper 2 are used. Even if an attempt is made to perform the spraying action by turning on the spraying switch 4 by detecting the storage state of the slag, each feeding roll 1 is not driven to rotate. It is possible to prevent erroneous operations such as mixing and spraying at the same time.

  According to the second aspect of the present invention, when taking out and discharging the powder remaining in each supply hopper 2, a search is made for a discharge switch 5 that is different from the spray switch 4 that is operated at the time of spraying. Therefore, there are few erroneous operations, and even if different types of powders are taken out and discharged at the same time, since it is not a spraying action, it does not hinder application spraying and can be quickly taken out and discharged. . In addition, when it is unavoidable to simultaneously mix and discharge, it is also possible to prepare and configure an extraction / discharge route, an extraction container, and the like for each feeding roll 1.

  In the third aspect of the present invention, when the residual powder is taken out by the ON operation of the discharge switch 5 as described above, the different powder is driven and rotated with a time difference for each of the feeding rolls 1A and 1B. Can be taken out separately and stored in separate containers so as not to mix.

The top view of a powder agent spreader. The rear view. The top view of the feeding apparatus part. The top view of the delivery roll part. The side view (A) and front view (B). The expanded sectional side view of the delivery roll part. The top view of a control panel part. The flowchart of the operation control. The flowchart of the operation control. The flowchart of the operation control. The top view which shows a spraying work state. The flowchart of the entrance / exit control of the spreading boom. The cross-sectional view (A) which shows another example of the spreading | diffusion boom 6, and a perspective view (B).

  Based on the drawings, the front wheels 10 and the rear wheels 11 are arranged and driven by the engine 12 and are steered by the steering handle 14 on the rear side of the bonnet 13 on the rear side of the driver seat 15 of the tractor vehicle body 7 in the four-wheel drive traveling form. The feeding device 19 is composed of a pair of left and right supply hoppers 2 that accommodates the powder and a feeding roll 1 that is below the feeding hopper 2 that feeds the powder contained in the supply hopper 2 by driving the motor M. The jet cylinder 20 that receives and guides the powdered granule, the blower 21 that blows air to the jet cylinder 20, and the tip of the tip while receiving and jetting the powder granulated from the jet cylinder 20 The right and left spraying booms 6 and the like that are sprayed from the spray nozzle 16 and sprayed are arranged.

  The right and left spraying booms 6 are supported at their base ends by swing arms 17 that are swingably provided at the lateral ends of a loop-shaped holder guard frame 9 at the rear end of the vehicle body. And a spreading boom 6 are connected to each other by a telescopic cylinder 18, and the cylinder 18 is expanded and contracted to switch between a spraying posture in which the spreading boom 6 is extended to the left and right sides and a storage posture along the left and right sides of the vehicle body. And Each spraying boom 6 can be switched between a spraying posture and a storage posture in a state where the end portion of each of the spray cylinders 20 and the base end portion of the spraying boom 6 are respectively connected by a flexible bellows hose 8. .

  The feed roll 1 has four front and rear feed rolls 1A, 1B, 1C with a short axial width set along the same roll axis 22, and the rear end feed roll 1A has a roll axis 22 that is normal. When the roll shaft 22 is rotated, when the roll shaft 22 rotates in the reverse direction, the reverse feeding ratchet 23 that is rotationally driven is interposed. When it rotates and reversely rotates, it is driven to drive via a forward rotation ratchet 24 that is not rotationally driven. Further, the feeding roll 1C at the front end does not have such a ratchet and is mounted so as to rotate forward and backward integrally with the roll shaft 22. A feed groove is formed on the rotating peripheral surface of each feed roll 1 by fitting a powder and the feed amount is determined by the depth and length of the feed groove.

  The feeding roll 1 can be driven and rotated by being mounted in a feeding case 25 and connected to a forward and reverse motor M at the front end. On the upper side of the feeding case 25, there is provided a supply hopper 2 for supplying and storing the powder agent from above, and the supply port portion at the lower end of the supply hopper 2 is looked into the rotating peripheral surface of the feeding roll 1. Further, under the feeding case 25, the receiving port 26 of the jet cylinder 20 is looked into, the powder agent fed by the rotation of the feeding roll 1 is received, and the blast from the blower 21 is received. It is the structure which carries on board. Partitions 27 and 28 are provided between the feeding rolls 1A, 1B and 1C, and a hopper partition 29 is provided inside the supply hopper 2 so as to partition the front and rear on the partition 27 between the feeding rolls 1A and 1B. The supply hopper 2 is looked into the rear feed roll 1A, the rear hopper 2R containing a small amount of powdered medicine, etc., and the feed rolls 1B and 1C on the front side to feed a large amount of powder such as fertilizer The front hopper 2F that stores the granule is divided and configured to store and supply the drug in the rear hopper 2R in the case of spraying the drug, and to store the fertilizer in the front hopper 2F in the case of spraying fertilizer. .

  A control panel 30 is disposed on one side of the driver seat 15, a switching lever 31 for switching the left and right spraying booms 6 between a spraying posture and a storage posture is provided, and a fan switch 32 for driving the blower 21, A spraying switch 33 for driving the feeding device 19 is provided. In addition, a display window 34 for setting and displaying the spraying amount, specific gravity, flow rate, air volume, etc. of the powder, a setting switch 35, a variable switch 36, an increase / decrease switch 37, a reset switch 38, etc. are arranged in this central portion. Thus, the feeding flow rate in the feeding device 19 can be adjusted, the right and left spraying booms 6 can be opened and closed, and the vertical spraying angle can be adjusted. Further, the jet cylinder 20 is provided with an air volume adjusting valve 39 for adjusting the air volume by the blower 21 by an air volume adjusting lever 42, a wind speed sensor 40 for detecting the wind speed, a potentiometer 41, and the like.

  The supply hopper 2 is a large-capacity first hopper that the front hopper 2F supplies to the feeding rolls 1B and 1C, mainly for supply and storage of fertilizer. A remaining amount sensor 3A that always detects (fertilizer) is provided. Further, as a small-capacity second hopper supplied to the feeding roll 1A by the rear hopper 2R, mainly for the supply and storage of the medicine, this hopper portion is set as “compartment B”, and the remaining amount of powder (medicine) is always detected. A quantity sensor 3B is provided.

  Here, a plurality of feeding rolls 1 arranged along the same rotation axis, a supply hopper 2 viewed on each of the feeding rolls 1, and a remaining amount for detecting the presence or absence of the powder in each of the supply hoppers 2 It has a sensor 3 and the like, and is configured so that different types of powders are fed out and sprinkled by the rotation of the different feed rolls 1, and the remaining amounts of the powders in the supply hoppers 2 are simultaneously detected. When doing, it is set as the structure which checks so that this feeding roll 1 may not be rotated even if the spreading switch 4 is turned ON.

  The powder agent is supplied and accommodated in the supply hopper 2 and detected by the remaining amount sensor 3, and the feed roller 1 is driven to rotate, whereby the powder agent is sprinkled while being fed. At this time, the supply hopper 2 at the optimum position is selected according to the type of powder, the amount of spray, etc., and the powder for spraying is supplied, and the feeding roll 1 of the supplied supply hopper 2 is driven. To be sprayed. In addition, after the spraying operation, when the powder remaining in each supply hopper 2 is taken out and discharged, each remaining amount sensor 3 has a different powder (fertilizer and chemical) in each hopper 2. When the remaining amount is detected simultaneously, even if the spray switch 4 is pressed and turned on, the feeding roll 1 is not driven to rotate.

  The basic flow of such powder agent spraying control is performed in accordance with the flowchart of FIG. When the spray switch 4 is turned on and the remaining amount sensors 3A and 3B are both turned on, the output of the feeding roll 1 is stopped according to steps S1 to S3 in the flowchart of FIG. At this time, even when the remaining amount sensors 3A and 3B are not detected (the supply hoppers 2F and 2R are both empty S2 and S4), the feeding roll 1 is not output. And when the remaining amount sensor 3A detects, but the remaining amount sensor 3B does not detect (S2, S3), that is, when the powder is contained only in the front hopper (first hopper) 2F of the section A. Outputs the feeding motor M to perform the spraying operation. The same applies when the remaining amount sensor 3B does not detect the remaining amount sensor 3A (S2, S4), that is, when the powder powder is contained in the rear hopper (second hopper) 2R of the section B. The feeding motor M is output to the spraying operation.

  Also, a discharge switch 5 for taking out the powder remaining in the supply hopper 2 is provided, and when the discharge switch 5 is turned on, each feed roll 1 is rotated to take out each powder. It is.

  As described above, after the powder spraying operation, when there is a powder residue remaining in each supply hopper 2, by turning on the discharge switch 5, each feed roll 1 is rotated and fed. Although it is made to carry in and accommodates in an extraction container, it can pay out even if the residual amount sensor 3 has detected the residual amount in each supply hopper 2 separately at this time.

  When powder is accidentally put into the fertilizer hopper 2F and the weed hopper 2R at the same time, it is necessary to discharge the powder on the non-spreading hopper, so the spray switch 4 is not activated, but the discharge switch 5 is turned on. Thus, the discharging operation can be performed by driving the motor M of the feeding roll to a predetermined rotation. When unnecessary, it is possible to take out and recover the powder and perform an accurate powder spraying operation without waste.

  However, in this case, the roll drive by the reverse rotation of the drive motor M may cause the feed rolls 1B and 1C of the fertilizer front hopper 2F and the feed roll 1A of the rear hopper 2R for herbicide to rotate at the same time. In the removal and discharge work, fertilizer and herbicide may be mixed at the time of discharge.

For this reason, when the discharge switch 5 is turned ON, a part of the feeding rolls 1A is driven to rotate forward, and then the other feeding rolls 1B are driven to rotate backward to perform the feeding action.
When the discharge switch 5 is turned on as described above, some of the feeding rolls 1A are driven to rotate in the forward direction, and the powders remaining in the supply hopper 2A on the feeding roll 1A are fed out. Discharged. When the feeding by the feeding roll 1A is finished, the other feeding roll 1B is driven to rotate to feed and discharge the powder remaining in the upper supply hopper 2B. A granular agent is taken out and discharged separately for each feeding roll 1A, 1B.

  Thus, at the time of discharge, as shown in the flowchart of FIG. 10, first, the feeding rolls 1B and 1C are driven to rotate forward by the rotational driving of the feeding motor M (S1), and the fertilizer in the fertilizer hopper 2F is taken out and collected. Subsequently, the feed roll 1A is reversely driven by reverse rotation driving (S2), and the herbicides in the herbicide hopper 2R are taken out and collected separately. In the illustrated embodiment, when the feed roll 1A is reversely rotated, a part of the feed rolls 1C is also driven in the reverse direction, but all of the residual fertilizer in the front hopper 2F has already been fed during the forward rotation of the previous stroke. Therefore, even if the feeding roll 1C is simultaneously driven in reverse rotation together with 1A, there is no possibility that the fertilizer is mixed into the extracted medicine.

  In the spraying control, when the spraying switch 4 is turned off (S5 in FIG. 9) and the stop output of the feeding roll 1 is performed, a buzzer alarm is given to this effect, and the fan switch 32 is turned off or the key switch is turned on. It prompts an OFF operation or the like. Further, when the vehicle is temporarily stopped and restarted in the field, the spraying switch 4 must be turned on. When the vehicle is started with the switch off, it can be dealt with quickly by issuing a warning sound.

  The left and right spraying booms 6 can be moved in and out of the storage posture and the spraying posture by the telescopic cylinder 18, but when the spraying booms 6 are rotated in the storage direction by a predetermined angle α, they are ejected at this time. Even if the powder is sprayed from the nozzle 16, this spraying is automatically stopped. Based on the detection of the telescopic position of the telescopic cylinder 18 or the storage position angle of the spreading boom 6, the driving of the feeding motor M, the blower 21 and the like is stopped (S1, S2 in FIG. 12). When the vehicle body 7 moves in and out of the field, if the spraying boom 6 is in the spraying state, a spraying loss is likely to occur. If the spraying is automatically stopped at this time, the operability is improved and the loss of the spraying agent can be reduced.

  Next, mainly based on FIG. 13, the spray boom 6 connected to the tip of the jet cylinder 20 is configured as a plurality of jet tubes 45, 46, 47 having different lengths. The switching cylinder 48 provided at the inner tip so as to be swingable is switched to each of the jet tubes 45, 46, or 47 so as to deliver the powder agent. The length of the jet tube 45 is the longest, for example, set to 7.5 m, the jet tube 46 is set to 5.0 m, the jet tube 47 is set to the shortest 2.5 m, and the ejection nozzles 16 are appropriately spaced from each other. Is arranged. Each of the jet tubes 45, 46, 47 branches in three directions around the rotation shaft 49 at the tip of the jet cylinder 20 and communicates therewith, and the switching cylinder 48 is rotated around the rotation shaft 49. Switching communication is possible.

  The switching cylinder 48 has a bellows cylinder 50 at the base thereof, which is always kept in communication with the jet cylinder 20 in a fixed relationship, and has a swing arm 51 at the outer end of the rotating shaft 49, It is configured to rotate through the rod 52. A connecting pin 53 is connected to the inner switching cylinder 48 through an elongated hole 54 formed on the outer periphery of the spreading boom 6 so that the switching cylinder 48 is accurately switched and rotated. Further, the switch cylinder 48 is switched to any one of the jet pipes 45, 46, or 47 by engaging the potentiometer arm 57 of the potentiometer 56 having the arm pin 55 of the swing arm 51 and attached to the jet cylinder 20. It is set as the structure which detects whether it is carried out. The turning operation of the switching cylinder 48 can be automatically operated by a driver's manual operation or a sensor for detecting work conditions.

1 Feeding roll 2 Supply hopper 3 Remaining amount sensor 4 Spreading switch 5 Discharge switch

Claims (3)

  A plurality of feeding rolls (1) arranged along the same rotational axis, a supply hopper (2) to be seen on each of the feeding rolls (1), and presence / absence of powder in each of the supply hoppers (2) A remaining amount sensor (3) for detecting a different type of powder and powder so as to be fed out and sprinkled by the rotation of the separate feeding rolls (1), and in each of the supply hoppers (2) When detecting the residual amount of each powder agent simultaneously, even if it operates ON of a distribution switch (4), it is controlled so that this supply roll (1) may not be rotated.   A discharge switch (5) is provided for taking out the powder remaining in the supply hopper (2), and when the discharge switch (5) is turned on, the feeding rolls (1) are rotated to The powder spraying device according to claim 1, wherein the powder powder is taken out.   By turning on the discharge switch (5), a part of the feeding rolls (1A) is driven to rotate forward, and then the other feeding rolls (1B) are driven to rotate backward to perform a feeding action. The powder agent spraying device according to claim 2.

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