JP2006296343A - Structure for measuring feed rate of granule of rice transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To deliver granules in the same amount as that when a rice transplanter performs planting of seedlings in the set amount of the seedlings corresponding to the specified amount of the granules used from a feeding means during measuring operation and to thereby easily perform feeding of an adequate amount of the granules. <P>SOLUTION: A structure for measuring the feed rate of the granules of the rice transplanter is equipped with a feeder 36 having the feeding means 38 for delivering the stored granules by a prescribed amount and feeding the granules to the seedlings. The structure is equipped as follows. The feeding means 38 is provided with operation means 83 and 92 for operating the feeding means 38 so as to perform the prescribed measuring operation required to feed the granules to the amount of the seedlings set corresponding to the amount of the granules used during the measuring operation to measure the feed rate of the granules fed from the feeding means 38 to the seedlings. The feeding means 38 is equipped with a container mounting part 46B for mounting and demounting a container 91 used during the measuring operation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a granular material supply amount measuring structure of a rice transplanter equipped with a supply device provided with supply means for feeding a granular material such as stored medicines and fertilizers by a predetermined amount to a seedling.

As a supply device equipped in the rice transplanter as described above, a plurality of supply means corresponding to the number of work strips are fixedly equipped, or a single supply means can be moved in the left-right direction with respect to the seedling platform. Some are equipped (see, for example, Patent Documents 1 and 2).
JP-A-6-181607 JP 2001-178213 A

  By the way, although the prescribed use amount is set for powders such as drugs and fertilizers, the prescribed use amount is the use amount for a predetermined seedling amount (for example, one mat-like seedling), In order to accurately measure the amount used, it is necessary to measure the amount of the granular material fed from the supply means when the rice transplanter actually performs the planting operation for one mat-like seedling.

  However, since a general user needs considerable skill and knowledge to perform the measurement work as described above, it has been difficult to supply an appropriate amount of powder particles while being equipped with a supply device.

  It is an object of the present invention to easily feed out the same amount of granular material from the supply means when the rice transplanter performs planting for the amount of seedling set corresponding to the prescribed usage amount of granular material at the time of measuring work In this way, an appropriate amount of powder can be easily supplied.

  In the invention according to claim 1 of the present invention, the granular material supply amount measurement of a rice transplanter equipped with a supply device provided with supply means for feeding the stored granular material by a predetermined amount to the seedling. In the structure, at the time of a weighing operation for measuring the supply amount of the granular material supplied from the supply means to the seedling, the supply means determines the amount of the powder to the seedling amount set corresponding to the usage amount of the granular material. An operation means for operating the supply means so as to perform a predetermined measurement operation necessary for supplying the body, and a container attachment portion that enables attachment and detachment of the container used during the measurement work is provided in the supply means. I have it.

  According to this configuration, with the container attached to the supply means, if the operation means causes the supply means to perform a predetermined metering operation, the fertilizer delivered by the measurement operation will be stored in the container, The amount of storage obtained in this way is the same as the amount of powder that the feeding means actually delivers when the rice transplanter performs planting operation for the amount of seedling set corresponding to the amount of powder used Become.

  Then, the granular material stored in this container is transferred to the measuring container attached at the time of purchasing the granular material, and the height position of the granular material in the measuring container at that time is attached to the measuring container. If the feed amount of the supply means is adjusted based on the difference in the height position (volume difference) compared to the scale (height position according to the specified amount of powder used), The feeding amount can be adjusted easily and appropriately. In addition, by measuring in this way, it is possible to easily and accurately compare and measure the prescribed amount of use without using a scale, even if the particles have different particle sizes.

  Therefore, at the time of planting work, it becomes possible to supply an appropriate amount of granular material without excess or deficiency, and it is possible to better promote the growth of each seedling after planting.

  In the invention according to claim 2 of the present invention, in the invention according to claim 1 described above, the supply means is for a plurality of placed seedlings placed on the seedling mounting stage of the seedling planting device. Necessary to supply the granular material for the amount of seedling set according to the amount of powder used as the predetermined measuring operation It is configured to move a long distance.

  According to this configuration, the supply means is a complicated supply operation for supplying the granular material while moving in the left-right direction with respect to the plurality of placed seedlings placed on the seedling mounting stage of the seedling planting device. Even if there is a container attached to the supply means, it is only necessary to allow the supply means to perform a predetermined measuring operation by the operation means, and the amount of seedlings set corresponding to the amount of powder used When the planting operation is performed by the rice transplanter, it is possible to easily feed out the same amount of powder as the amount of powder actually fed out by the feeding means.

  Therefore, regardless of the supply operation mode of the supply means, it is possible to supply an appropriate amount of granular material without excess or deficiency during planting operations.

  According to a third aspect of the present invention, there is provided the position detecting means for detecting the arrival of the supply means at a predetermined position in the second aspect of the invention.

  According to this configuration, if the predetermined position of the supply unit is, for example, the movement start position or the movement end position when the supply unit performs a predetermined measurement operation, the operation for causing the supply unit to perform the predetermined measurement operation can be performed. It becomes easy to do.

  Moreover, if the predetermined position of the supply means is a position corresponding to the number of work lines in the fractional line planting (small number of line planting) where the number of work lines by the rice transplanter is reduced, the supply corresponding to the number of work lines of the rice transplanter The movement region of the means can be changed, and in this way, the powder particles can be supplied only to the placement seedlings to be planted among the placement seedlings placed on the seedling placement stand.

  Accordingly, the weighing operation can be simplified, and the excessive supply and excessive consumption of the powder particles caused by supplying the powder particles to the placed seedlings that are not planted in the fractional planting can be avoided.

  According to a fourth aspect of the present invention, in the invention according to the third aspect, the position detection means detects the arrival of the supply means from a moving distance of the supply means. It is configured.

  According to this configuration, in providing a plurality of predetermined positions of the supply means, the number of parts and assembly man-hours can be reduced as compared with the case where a switch is provided as a position detection means at each predetermined position.

  Therefore, the simplification of the configuration and the improvement of the assembly can be made while facilitating the weighing operation, or avoiding excessive supply and excessive consumption of the granular material.

  In the invention according to claim 5 of the present invention, in the invention according to any one of claims 1 to 4, the operating means, command means for commanding the start of the predetermined metering operation, Based on the start command, the supply unit is configured to include a control unit that operates the supply unit so that the predetermined measurement operation is automatically performed.

  According to this configuration, when the rice transplanter performs the planting operation for the amount of seedlings set corresponding to the amount of the granular material used, it is an extremely simple operation that only operates the command means. As many powder particles as the amount of the powder particles to be fed can be fed from the supply means.

  Accordingly, the weighing operation can be facilitated effectively.

  According to a sixth aspect of the present invention, in the invention according to the fifth aspect, the state detecting means detects whether or not the state of the supply means is a state where the predetermined metering operation can be started. When the control means is instructed to start the predetermined metering operation from the command means, the state of the supply means is not capable of starting the predetermined metering operation by the state detecting means. If this is detected, the supply means is operated to switch the state of the supply means to a state where the predetermined metering operation can be started.

  According to this configuration, even if the supply unit is in a state where the predetermined weighing operation cannot be started, the supply unit can be started with a simple operation simply by operating the command unit. It can be switched to a possible state.

  Further, since the command means for causing the supply means to perform a predetermined measurement operation is also used as the command means for switching the supply means to a state where the predetermined measurement operation can be started, the configuration can be simplified.

  Accordingly, it is possible to further facilitate the weighing operation while simplifying the configuration.

  According to a seventh aspect of the present invention, in the invention according to any one of the second to fourth aspects, the movement start point and movement when the supply means moves in the predetermined metering operation. The end point is made to coincide with the moving end of the supply means set corresponding to the left and right ends of the seedling platform.

  According to this configuration, the supply means is always in the seedling stage at the time of all-planting work after appropriately adjusting the feeding amount of the supply means based on the supply amount of the powder obtained by performing a predetermined weighing operation. It will be located at either the left or right end, and it will not be necessary to move the supply means to the end of the seedling stage as in the case where the supply means is located at the left and right middle part of the seedling stage. It is possible to quickly supply the granular materials to the seedlings placed on the line.

  Therefore, it is possible to achieve excellent workability that can quickly shift from a predetermined metering operation to a normal supply operation.

  According to an eighth aspect of the present invention, in the invention according to any one of the first to fourth and seventh aspects, the operation means is configured so that the predetermined weighing operation is performed by an artificial operation. Is composed of an artificial operation section and a control means for operating the supply means in accordance with the operation of the artificial operation section.

  According to this configuration, it is possible to cause the supply means to perform a predetermined weighing operation by human operation of the human operation unit, and to simplify the control configuration and the machine configuration compared to the case where the predetermined weighing operation is automated. It will be able to plan.

  Therefore, it is possible to further facilitate the weighing operation while improving the assemblability and reducing the cost.

  According to a ninth aspect of the present invention, in the invention according to the eighth aspect, a recognition means for recognizing the operation timing of the artificial operation unit is provided.

  According to this configuration, it is possible to recognize the operation timing when performing a predetermined weighing operation by human operation, so that the predetermined weighing operation can be performed more easily and appropriately, and more accurate weighing can be performed.

  Accordingly, it is possible to improve the operability and the measurement accuracy when performing a predetermined measurement operation manually.

  FIG. 1 shows an entire side surface of a riding type rice transplanter, which is a link mechanism that swings up and down by the operation of a hydraulic lift cylinder 2 at the rear part of a traveling machine body 1 formed in the riding type. 3, the seedling planting device 4 is connected to be capable of being driven up and down.

  The traveling machine body 1 uses the power from the engine 5 mounted on the front thereof for traveling to the left and right front wheels 8 and rear wheels 9 via a hydrostatic continuously variable transmission 6 and a gear transmission 7. A boarding operation unit 12 including a steering wheel 10 for steering the left and right front wheels 8, a driver seat 11, and the like is formed in the center portion.

  As shown in FIGS. 1 to 3, the seedling planting device 4 includes a power distribution mechanism 13 to which working power from the gear-type transmission 7 is transmitted, and a left-right main frame 14 that supports the power distribution mechanism 13 and the like. , Three planting transmission cases 15 extending rearward from the main frame 14, rotary planting mechanisms 16 respectively disposed on the left and right sides of the respective planting transmission cases 15, and mats for six strips The seedling stage 17 for placing the seedlings (an example of the placed seedlings), the six seedling vertical feed mechanisms 18 that operate corresponding to each of the six matted seedlings, and the seedling stage 17 are fixed in the left-right direction. A lateral feed drive mechanism 19 that reciprocates by stroke, a vertical feed drive mechanism 20 that activates the seedling vertical feed mechanism 18 every time the seedling stage 17 reaches the left and right stroke ends, and three that level the seedling planting site in advance. Leveling float 21 It is configured for planting Article 6 of and the like.

  Each planting mechanism 16 is provided corresponding to each of the six mat-shaped seedlings placed on the seedling mount 17 and is built in the left and right transmission shaft 22 and the corresponding planting transmission case 15. The motive power from the power distribution mechanism 13 transmitted through the chain-type transmission mechanism 23 and the like is configured to perform a planting operation in which a predetermined amount of seedlings are cut out from the corresponding mat-shaped seedlings and planted in the field.

  The lateral feed drive mechanism 19 has its lateral feed shaft 24 rotated by the power from the power distribution mechanism 13 and reciprocally moves the movable part 25 connected to the seedling mounting base 17 with a constant stroke in the left-right direction. The stage 17 is configured to reciprocate with a constant stroke in the left-right direction.

  The vertical feed drive mechanism 20 is configured such that any one of the pair of left and right rotating arms 27 provided on the rotating shaft 26 that is rotated by the power from the power distribution mechanism 13 causes the seedling stage 17 to reach the left and right stroke ends. In addition, the operation arm 30 of the ratchet mechanism 29 provided on the drive shaft 28 that drives each seedling vertical feed mechanism 18 is kicked up, and the drive shaft 28 is intermittently rotated by a predetermined angle, whereby each seedling vertical feed is performed. The mechanism 18 is configured to operate intermittently.

  Each seedling vertical feed mechanism 18 moves the corresponding mat-like seedlings downward by a predetermined amount by a vertical feed belt 31 with protrusions, along with the intermittent rotation drive of the drive shaft 28, by a predetermined amount. Is configured to do.

  The seedling planting device 4 includes three auxiliary clutches 32 for switching the transmission state to two adjacent planting mechanisms 16 among the six planting mechanisms 16 arranged in parallel in the left-right direction, Three auxiliary clutches 33 for seedling vertical feed for switching the transmission state to two adjacent seedling vertical feed mechanisms 18 among the six seedling vertical feed mechanisms 18 arranged in parallel in the direction. It is divided into three planting work parts 4A to 4C that can be operated independently in each direction, and all the planting work parts 4A to 4C are actuated by operating the auxiliary clutches 32 and 33. 6-row planting state (all-row planting state), left 2-row planting state in which only the left planting operation unit 4A is operated, left 4 in which the left planting operation unit 4A and the left and right center planting operation unit 4B are operated Row planting, right planting The right double row planting state in which only the business unit 4C is operated and the right four row planting state in which the right planting operation unit 4C and the right and left center planting operation unit 4B are operated can be switched and displayed. Has been.

  Each auxiliary clutch 32 for planting is interposed between the transmission shaft 22 and the corresponding chain transmission mechanism 23, and each auxiliary clutch 33 for vertical feeding of the seedling is composed of the drive shaft 28 and each planting work section. An auxiliary clutch 32 for planting and an auxiliary clutch 33 for vertical seedling feeding, which are interposed between the cylindrical shaft 34 extending over the two seedling vertical feeding mechanisms 18 belonging to 4A to 4C and located on the left side of the seedling planting device 4. The operation lever 35 provided on the left side of the seedling planting device 4 is provided with an auxiliary clutch 32 for planting and an auxiliary clutch 33 for vertically feeding the seedling planting device 4 located at the center of the left and right of the seedling planting device 4. An auxiliary clutch 32 for planting located on the right side of the seedling planting device 4 and an auxiliary clutch 33 for vertically feeding the seedlings are deployed on the right side of the seedling planting device 4. Linked to the operating lever 35 There.

  In other words, the planting state of the seedling planting device 4 is such that if all the auxiliary clutches 32 and 33 are engaged using the three operating levers 35, the left auxiliary clutches 32 and 33 are engaged when the auxiliary clutches 32 and 33 are engaged. If the right side auxiliary clutches 32, 33 and the left and right center auxiliary clutches 32, 33 are disengaged, the left side auxiliary clutches 32, 33 and the left and right center auxiliary clutches 32, 33 are brought into the left two-row planting state. When the right side auxiliary clutches 32, 33 are turned off, the left side auxiliary clutches 32, 33 are turned on, the left side auxiliary clutches 32, 33 and the left and right center auxiliary clutch 32 are turned on. , 33 are turned off, the right auxiliary clutches 32, 33 and the left and right central auxiliary clutches 32, 33 are engaged, and the left auxiliary clutches 32, 3 are engaged. It can be switched to the state planted right Article 4 if the state cut.

  As shown in FIGS. 1, 2, and 4 to 18, the seedling planting device 4 is equipped with a supply device 36 that supplies a predetermined amount of medicine to the mat-like seedlings placed on the seedling placing stand 17. The supply device 36 is supported by the support frame 37 so as to be able to reciprocate in the left-right direction with respect to the mat-shaped seedling of the support frame 37 erected on the lower portion of the seedling mount 17. A supply unit 38, a drive unit 39 that drives the supply unit 38, and a control unit 40 that controls the operation of the drive unit 39 are configured.

  The support frame 37 lays an aluminum guide rail 42 formed in a substantially U-shape in cross section across the support column 41 erected on the lower left and right ends of the seedling platform 17, and the guide rail The bracket 43 is connected to the right end portion of 42.

  The supply unit 38 includes a hopper 44 for storing granular medicine, a feeding mechanism 45 for feeding a predetermined amount of medicine from the hopper 44, a supply hose 46 for feeding and guiding the medicine fed by the feeding mechanism 45 downward, and a supply hose. A flat cored bar 47 that maintains 46 in a predetermined posture, etc., and with the power from the drive unit 39, the whole moves in the left-right direction along the guide rail 42, and the feeding mechanism 45 is fed out. Is configured to do.

  The drive unit 39 is equipped with a drive sprocket 49 that is drivingly connected to an output shaft 48 a of the electric motor 48 by the operation of an electric motor 48 with a reduction gear supported by the bracket 43, and a left end portion of the guide rail 42. By rotating the endless rotating chain 51 that spans the driven sprocket 50, the supply unit 38 is moved in the left-right direction with respect to the mat-like seedling of the seedling mounting base 17, and the feeding mechanism 45 is fed out. The medicine is supplied to the mat-like seedlings of the seedling stage 17.

  The feeding mechanism 45 includes a feeding case 52 connected to the lower portion of the hopper 44 and a resin-made feeding roll 53 having a plurality of feeding recesses 53 </ b> A in the circumferential direction of the outer peripheral surface, and is slid relative to the guide rail 42. A sliding member 54 that is movably supported is connected, and the sliding member 54 supports a pair of left and right rack gears 55 and a feeding roll 53 that mesh with the endless rotating chain 51 so as to be relatively rotatable. A front-rear fixed shaft 56, a front-rear drive shaft 57 that rotationally drives the feed roll 53, and the like are provided. The drive shaft 57 includes a sprocket 58 that meshes with the endless rotating chain 51, and a feed roll 53. And a pinion 59 that meshes with the internal gear 53a formed on the inner gear 53a.

  That is, when the endless rotating chain 51 is rotationally driven by the power from the electric motor 48, the entire supply unit 38 together with the pair of rack gears 55 meshed with the endless rotating chain 51 is formed in the mat shape of the seedling stage 17. The feeding mechanism 45 is fed out by the rotation of the feeding roll 53 that moves in the left-right direction with respect to the seedling and is interlocked with the rotation of the pinion 59 meshed with the endless rotating chain 51, so The medicine is supplied.

  On the inner bottom of the guide rail 42, a resin soundproof member 60 that prevents the generation of noise due to the endless rotating chain 51 coming into contact with the inner bottom is opposed to the endless rotating chain 51. Equipped together.

  The feeding roll 53 includes an inner gear 53a and a first roll part 53B supported by a fixed shaft 56 via a bearing 61 and a boss 62, and a front-rear direction (rotating shaft) with respect to the first roll part 53B. The first roll portion 53B has a plurality of feeding grooves 53b along the rotational axis direction of the outer peripheral surface. A plurality of feeding protrusions 53c that are formed in alignment in the circumferential direction and engage with the corresponding feeding grooves 53b project from the second roll portion 53C toward the first roll portion 53B, and the corresponding feeding grooves 53b. With the feeding protrusion 53c, a feeding recess 53A is formed so that the capacity can be adjusted.

  The first roll portion 53B is prevented from coming off by a fixing pin 63 inserted through the fixed shaft 56, and the first roll portion 53B is rotated relative to the sliding member 54 between the rear end and the sliding member 54. While being allowed, a felt dust-proof ring 64 that prevents the medicine from flowing from the gap between the first roll portion 53B and the sliding member 54 to the meshing portion of the internal gear 53a and the pinion 59 is interposed. .

  The second roll portion 53 </ b> C is supported by a boss 65 </ b> A of the operating tool 65 screwed to the front portion of the fixed shaft 56 via the bush 66 so that the second roll portion 53 </ b> C can rotate relative to the fixed shaft 56. Accordingly, the clip is prevented by the clip 68 through the shim 67 so as to move in the front-rear direction integrally with the operation tool 65.

  The operation tool 65 is fitted into a circular opening 52A formed in the front surface of the feeding case 52 so as to be relatively rotatable via an O-ring 69, and the operation portion 65B protrudes forward from the front surface of the feeding case 52. It has become.

  The feeding case 52 includes a pair of front and rear partition plates 70 that prevent the medicine from flowing out from the front and rear gaps formed between the upper portion thereof and the outer peripheral surface of the feeding roll 53, and the upper portion and the feeding roll 53. A pair of left and right brushes 71 that prevent the medicine from flowing out from the left and right gaps formed at the same time and prevent the excess medicine from feeding out from the feeding recess 53A, and is provided between the front and rear partition plates 70. The volume is adjusted.

  Between the feeding roll 53 and each partition plate 70, a minute gap that prevents entry of the medicine while avoiding contact between them is secured, and in order to ensure the gap with high accuracy, The partition plate 70 is made of a sheet metal with high processing accuracy. Further, even when the drug enters the gap, the plates of the partition plates 70 are arranged so that the drug quickly flows out from the gap. The thickness is set to be thin (for example, about 0.3 mm).

  That is, in the supply device 36, the feed amount adjusting means 72 that enables the medicine feed amount to be adjusted is configured by the feed roll 53, the fixed shaft 56, the operation tool 65, and the like that are internally or internally fitted in the feed case 52. Thus, while the feeding amount adjusting means 72 is configured to be lightweight and compact, the operation of the medicine by the feeding mechanism 45 can be performed simply by adjusting the capacity of each feeding recess 53A by rotating the operation tool 65. The feed amount can be adjusted.

  The pair of front and rear partition plates 70 and the pair of left and right brushes 71 described above can more reliably prevent the medicine from flowing out from the gap between the upper portion of the feeding case 52 and the outer peripheral surface of the feeding roll 53. Since the surplus medicine can be prevented from being delivered by the brush 71, a delivery of a predetermined amount of medicine by the delivery mechanism 45 can be performed more accurately. Further, the delivery roll 53 and each partition board are provided by the pair of front and rear partition plates 70 described above. It is possible to avoid a decrease in durability due to wear of the feeding roll 53 due to contact with the feeding 70 and entry of the medicine between the feeding roll 53 and each partition plate 70.

  Moreover, as described above, when the dust-proof ring 64 is interposed between the first roll portion 53B and the sliding member 54, the medicine flows out between the feeding roll 53 and the rear partition plate 70. Even so, the medicine can be prevented from flowing down to the meshing portion between the internal gear 53a of the first roll portion 53B and the pinion 59, and the chemical accumulates on the meshing portion and the backlash is eliminated. The stop of the rotation of the feeding roll 53 can be avoided in advance.

  Reference numeral 73 shown in FIGS. 13 and 15 is a spacer interposed between the front and rear partition plates 70. Reference numeral 74 shown in FIG. 5 and FIG. 6 is a weed cocoon erected on the left and right support columns 41 so that the height can be adjusted. Thus, a passage path for the supply hose 46 is formed.

  As shown in FIGS. 4, 7 to 10, 17, and 18, the control unit 40 changes the movement region of the supply unit 38 corresponding to the planting work units 4 </ b> A to 4 </ b> C of the seedling planting device 4 that operates. Three area setting switches 75 to 77 to enable, a right start switch 78 for instructing start of movement of the supply unit 38 to the right, a left start switch 79 for instructing start of movement of the supply unit 38 to the left, and a supply unit A left end switch (an example of a state detection means) 80 for detecting the arrival at the left end in the 38 all-strand movement region H, and a right end for detecting the arrival at the right end in the all-strand movement region H of the supply unit 38 A switch (an example of a state detection unit) 81, a position detection unit 82 that detects the movement position of the supply unit 38, and a control device (an example of a control unit) 83 that controls the operation of the electric motor 48 based on the output thereof. , Etc.

  Each region setting switch 75 to 77 corresponds to each planting operation unit 4A to 4C in the control box 84 provided in the vicinity of the boarding operation unit 12 so that the human operation from the boarding operation unit 12 is possible. It is arranged side by side in the state.

  The right start switch 78 is pressed each time the operating arm 85 is rotated by the one end 85A of the operating arm 85 provided at the left end of the seedling longitudinal feed drive shaft 28 that is intermittently rotated at a predetermined angle. In this manner, it is arranged at the left end portion of the seedling stage 17 and an ON signal at that time is output as a right movement command of the supply unit 38. The left start switch 79 is provided at the left end portion of the seedling stage 17 so that it is pushed by the other end portion 85B of the operation arm 85 every time the operation arm 85 is rotated. The signal is output as a left movement command for the supply unit 38.

  The left end switch 80 is mounted on the bracket 43 so as to be pressed by the first operating piece 51A mounted at a predetermined position of the endless rotating chain 51, and detects the arrival of the supply unit 38 at the left end by the pressing operation. . The right end switch 81 is mounted on the bracket 43 so as to be pressed by the second operating piece 51B mounted at a predetermined position of the endless rotating chain 51, and the pressing operation allows the supply unit 38 to reach the right end. To detect.

  The position detecting means 82 is close to the outer peripheral portion of the rotating body 86 so as to detect a sheet metal rotating body 86 that rotates integrally with the drive sprocket 49 and a plurality of irregularities formed on the outer peripheral portion of the rotating body 86. The proximity sensor 87 is provided.

  The control device 83 is configured by a microcomputer built in the control box 84, and the supply unit 38 is located on either the left or right side of the whole-line moving region H on the basis of outputs from the left end switch 80 and the right end switch 81 when the control device 83 is activated. It is determined whether or not the electric motor 48 is located at either end, and if it is not located at either the left or right end, the electric motor 48 is operated in reverse until the left end switch 80 detects the arrival of the supply unit 38. .

  Moreover, based on the output from each area | region setting switch 75-77, the movement area | region for 6 articles | strands which carries out supply operation | movement with respect to the movement area | region of the supply part 38 with respect to the mat-like seedlings of all the planting operation parts 4A-4C. Movement area for all stripes) H, left two-row movement area Ha that performs supply operation only to the mat-like seedlings of the left planting work section 4A, the left planting work section 4A, and the left and right center planting work section Left four-row moving area Hab that performs a feeding operation for the mat-like seedling of 4B, right two-row moving area Hc that performs a feeding operation only for the mat-like seedling of the right planting work unit 4C, or the right side The setting is changed to one of the right four-row moving area Hbc for supplying the mat-like seedlings of the planting work part 4C and the right and left centering work part 4B, and each area setting switch is set in the control box 84. Three indicator lights 8 corresponding to 75-77 The 90 turns on in response to the movement area after the setting change.

  Then, when the 6-row moving area H is set as the moving area of the supply unit 38, the electric motor 48 is controlled based on the outputs of the right start switch 78, the left start switch 79, the left end switch 80, and the right end switch 81. By controlling the operation, the supply unit 38 is reciprocated left and right in the six-strip moving region H. More specifically, when the right start switch 78 is pressed and a right movement command is output from the right start switch 78 in a state where the left end switch 80 detects the arrival of the supply unit 38, the right end switch 81 is switched to the supply unit. The electric motor 48 is rotated in the forward direction until the arrival of the right end portion 38 is detected, and conversely, the left start switch 79 is pressed and left when the right end switch 81 detects the arrival of the supply portion 38. When the left movement command is output from the start switch 79, the electric motor 48 is reversely operated until the left end switch 80 detects the arrival of the supply unit 38 at the left end.

  Further, when the left 2-row moving area Ha or the left 4-row moving area Hab is set as the moving area of the supply unit 38, the right start switch 78, the left start switch 79, the left end switch 80, and the position detection means The operation of the electric motor 48 is controlled based on the output of 82, and the supply unit 38 is reciprocated left and right in the left two-row moving region Ha or the left four-row moving region Hab. More specifically, when the left 2-row moving area Ha or the left 4-row moving area Hab is set, first, it is determined whether or not the left end switch 80 detects the arrival of the supply unit 38 and detects it. If not, the electric motor 48 is reversely operated until the left end switch 80 detects the arrival of the supply unit 38. When the right start switch 78 is pressed and a right movement command is output from the right start switch 78 while the left end switch 80 detects the arrival of the supply unit 38, the electric motor 48 is rotated forward. The unevenness detection from the proximity sensor 87 of the position detecting means 82 output in response to the operation is read as a pulse, and the movement distance of the supply unit 38 is calculated from the pulse, and the calculated distance is stored in advance as a target movement. Distance (when the left 2-row moving area Ha is set, the moving distance corresponding to the moving area Ha, and when the left 4-row moving area Hab is set, corresponding to the moving area Hab As the calculated distance coincides with the target movement distance, the electric motor 48 is stopped and the supply unit 38 is stopped. In this stopped state, when the left start switch 79 is pressed and a left movement command is output from the left start switch 79, the electric motor 48 is reversed until the left end switch 80 detects the arrival of the supply unit 38 at the left end. Operate.

  On the other hand, when the right two-row moving region Hc or the right four-row moving region Hbc is set as the moving region of the supply unit 38, the right start switch 78, the left start switch 79, the right end switch 81, and the position detection means Based on the output of 82, the operation of the electric motor 48 is controlled to reciprocate the supply unit 38 in the right and left directions in the right two-line moving area Hc or the right four-line moving area Hbc. More specifically, when the right two-row moving region Hc or the right four-row moving region Hbc is set, first, it is determined whether or not the right end switch 81 detects the arrival of the supply unit 38 and detects it. If not, the electric motor 48 is rotated forward until the right end switch 81 detects the arrival of the supply unit 38. Then, when the left start switch 79 is pressed and a left movement command is output from the left start switch 79 in a state where the right end switch 81 detects the arrival of the supply unit 38, the electric motor 48 is reversely operated, The detection of unevenness from the proximity sensor 87 of the position detection means 82 output in accordance with the operation is read as a pulse, the movement distance of the supply unit 38 is calculated from the pulse, and the calculated distance is stored in advance as a target movement distance. (When the right 2-row moving area Hc is set, the moving distance corresponds to the moving area Hc, and when the right 4-row moving area Hbc is set, it corresponds to the moving area Hbc. As the calculated distance matches the target movement distance, the operation of the electric motor 48 is stopped and the supply unit 38 is stopped. In this stopped state, when the right start switch 78 is pressed and a right movement command is output from the right start switch 78, the electric motor 48 is adjusted until the right end switch 81 detects the arrival of the supply unit 38 at the right end. Rotate.

  From the above configuration, the planting state of the seedling planting device 4 was switched to any of the 6-row planting state, the left 4-row planting state, the right 4-row planting state, the left 2-row planting state, and the right 2-row planting state. Even in this case, at the time of planting operation, the drive shaft 28 of the longitudinal feed drive mechanism 20 that is intermittently rotated at a predetermined angle is half-rotated, and the drive shaft 28 is half-turned by the seedling longitudinal feed mechanism 18 that is interlocked with the drive shaft 28. Each time the longitudinal feeding of a predetermined amount of mat-shaped seedling corresponding to the amount of rotation is completed, the supply device 36 applies a medicine to the mat-shaped seedling to be planted placed on the planting operation units 4A to 4C to be operated. Proper and reliable supply.

  Further, the control device 83 operates the electric motor 48 based on the output from the right start switch 78 or the left start switch 79 regardless of the movement region of the supply unit 38, and then the left end switch 80, the right end switch 81, Alternatively, until the operation of the electric motor 48 is stopped based on the output from the position detection unit 82, the movement of the supply unit 38 is monitored based on the output from the position detection unit 82, and the proximity sensor 87 in the position detection unit 82. When the unevenness detection (pulse) of the rotating body 86 due to is lost, it is determined that the supply unit 38 has stopped despite the operation of the electric motor 48, and a predetermined time has elapsed since the detection of unevenness was lost. It is configured to be switched to a power-off state later, so that the failure of the left end switch 80 or the right end switch 81 or the other in the drive unit 39 Biting, etc. by avoiding the damage such as the electric motor 48 and an electric circuit due to continue the operation despite the electric motor 48 supply 38 is stopped moving.

  Instead of the configuration in which the power is turned off after a lapse of a predetermined time after the detection of unevenness, the electric motor 48 may be stopped and an alarm lamp (not shown) may be turned on.

  As shown in FIGS. 2, 4 to 10 and FIGS. 17 to 20, the medicine supplied and discharged from the discharge port 46 </ b> A of the supply hose 46 is received at the lower end portion of the supply hose 46 serving as the supply and discharge portion of the supply portion 38. A screw-in type container mounting portion 46B that enables the container 91 to be attached and detached is provided. On the other hand, the control device 83 is configured to execute a measurement control operation based on an operation of a measurement switch (an example of command means) 92 provided in the control box 84. That is, the control device 83 and the metering switch 92 constitute an operation means.

  The control device 83 will be described in detail. When the measuring switch 92 is operated, the control device 83 detects that the left end switch 80 has reached the supply unit 38 based on the output from the measuring switch 92 at that time. If the left end switch 80 does not detect the arrival of the supply unit 38, the electric motor 48 is operated in reverse until the left end switch 80 detects the arrival of the supply unit 38, and the left end switch 80 is When the arrival of the supply unit 38 is detected, based on the output from the left end switch 80 and the position detection means 82, supply only the moving distance necessary to supply the medicine to the set amount of the seedlings. The electric motor 48 is operated so that the part 38 moves.

  Then, the medicine stored in the container 91 by the movement of the supply unit 38 at this time is transferred to the measuring container 93 attached to the medicine, and the height position of the medicine in the measuring container 93 at that time is changed to the measuring container. Compared with the scale 93A (height position corresponding to the prescribed usage amount of the medicine) attached to 93, the operation tool 65 of the feeding mechanism 45 is operated based on the difference in the height position (volume difference). If the capacity of each feeding recess 53A in the feeding roll 53 is adjusted, the amount of medicine delivered by the feeding mechanism 45 can be appropriately adjusted without using a scale, and there is no excess or deficiency during planting work. An appropriate amount of drug can be supplied to the mat-like seedlings to be planted, and the growth of each seedling after planting can be promoted.

  By the way, the set amount of seedlings is the amount of seedlings relative to the prescribed amount of medicine written in the instructions for use of the medicine, and this amount of seedling is matted as a seedling to be used in a rice transplanter. Since seedlings are common, it is one matted seedling (one seedling box).

  Since the mat-like seedling has a standard length of 580 millimeters, when the drive shaft 28 of the longitudinal feed drive mechanism 20 is rotated halfway during planting operation, the mat-like seedling is interlocked with the drive shaft 28. When the amount of movement of the match-like seedling vertically fed by the seedling vertical feeding mechanism 18 is 67.5 mm, the number of movements (the number of times of drug supply) performed by the supply unit 38 for one mat-like seedling is 580 mm. This is approximately 8.593 times divided by 67.5 mm, and the distance that the supply unit 38 moves by the movement of about 8.593 times is the movement distance of the supply unit 38 with respect to one mat-like seedling at the time of drug supply. Become.

  Here, the distance that the supply unit 38 moves by approximately 8.593 movements is the same as the distance that the supply unit 38 moves by approximately 8.593 distances by one movement. For example, when the supply unit 38 is set to reach the distance by two movements (one reciprocation), the distance of about 8.593 is divided by the number of movements of about 4.297. What is necessary is just to make the distance of a line into the movement distance per time, and when setting it to reach by 4 movements (2 reciprocations), the movement distance for about 8.593 is 4 times. The distance for about 2.148 items divided by the number of movements may be used as the movement distance per one time.

  Therefore, in the control operation for measurement by the control device 83, the supply unit 38 is controlled so as to perform four movements (two reciprocating movements) with the movement distance per one time being 2.148. The device 83 is configured to control the operation of the electric motor 48 based on outputs from the left end switch 80 and the position detection means 82.

  More specifically, when the metering switch 92 is operated in a state where the left end switch 80 detects the arrival of the supply unit 38, the control device 83 causes the electric motor 48 to rotate forward to move the supply unit 38 to the right. The movement detection is performed as a pulse by detecting the unevenness detection from the proximity sensor 87 of the position detection means 82 outputted at the time of movement, and the movement distance of the supply unit 38 is calculated from the pulse, and the calculated distance is stored in advance as a target movement. Compared with the distance of 2.148, which is the distance, the electric motor 48 is switched from the normal operation state to the reverse operation state as the calculation distance matches the target movement distance, and the supply unit 38 is moved leftward. When the left end switch 80 detects that the supply unit 38 has reached the left end during the movement, the electric motor 48 is switched from the reverse operation state to the normal operation state, and the supply unit 38 is moved to the right. The detection of unevenness from the proximity sensor 87 of the position detecting means 82 output at the time of movement is read as a pulse, the moving distance of the supply unit 38 is calculated from the pulse, and the calculated distance is stored in advance. Compared with the distance of 2.148, which is the target moving distance, the electric motor 48 is switched from the normal rotation operation state to the reverse rotation operation state as the calculation distance matches the target movement distance, and the supply unit 38 is left When the left end switch 80 detects that the supply unit 38 has reached the left end during this movement, the electric motor 48 is stopped and the supply unit 38 is stopped.

  When the control operation as described above is performed as a control operation for measurement, a control program for measurement that enables this control operation is applied to a three-planted or more all-planting machine equipped with the supply device 36. It can be diverted, and the control configuration of those rice transplanters can be simplified.

[Another embodiment]
Hereinafter, other embodiments of the present invention will be listed.
[1] The supply device 36 may be fixedly equipped with a plurality of supply means 38 corresponding to the number of work strips.

[2] As the predetermined metering operation, for example, instead of performing the above four movements (two reciprocating movements) with the movement distance per one time being 2.148, Perform two movements (one reciprocating movement) with a movement distance per rotation of 4.297, or for the amount of seedling set corresponding to the amount of powder used The moving supply means 38 moves only for the time necessary to supply the powder particles, or it is necessary to supply the powder particles for the seedling amount set corresponding to the amount of the powder particles used. The feeding roll 53 may be rotated by the number of rotations or time.

[3] The container attaching portion 46B may be configured to allow attachment of the measuring container 93 attached at the time of purchase of the granular material. Various modifications can be made to the mounting structure of the container mounting portion 46B.

[4] The container 91 may be provided with a scale for measurement, and may be provided with a plurality of scales according to the particle size of the powder.

[5] As the operation means, a left and right swing type operation lever which is an example of an artificial operation unit provided on the back of the supply device 36, a pair of left and right switches for detecting the operation to the left and right, and detection of the switches The control means 83 for rotating the electric motor 48 forward or reverse based on the above may be used. Further, in this configuration, the operation of the operation lever causes the supply means 38 to perform four movements (two reciprocating movements) with the above-mentioned movement distance per 2.148 as a predetermined weighing operation. ), As a recognition means for recognizing the operation timing of the operation lever, a mark is provided at a position separated by 2.148 from the left end portion of the supply means 38 in the full-line movement region H. Alternatively, the supply means 38 may be provided with an indicator lamp that is turned on when reaching the position separated by 2.148 from the left end in the full-line moving region H. .

[6] The artificial operation unit may be a rotation operation lever that directly rotates the feeding roll 53, a handle for artificially moving the supply unit 38 in the left-right direction, or the like.

[7] The seedling planting device 4 may be one other than the six-row planting, for example, four-row planting, five-row planting, or eight-row planting, or the supply means 38 in the supply device 36. As the movement region, various changes can be made according to the number of planting strips of the seedling planting device 4.

[8] The seedling planting device 4 may be configured to place a roll seedling or the like on the seedling stage 17.

[9] The granular material supplied by the supply device 36 may be fertilizer.

[10] The supply device 36 may be equipped with a plurality of supply means 38 for supplying powder particles while moving in the left-right direction with respect to the seedling mount 17.

[11] Various changes can be made to the configuration of the supply means 38, for example, a configuration in which the supply hose 46 is not equipped, or a configuration in which the supply hose 46 supplies powder particles to the field instead of the placed seedlings. It may be.

[12] As the position detection means 82, a switch arranged at a position separated by 2.148 from the left end of the supply means 38 in the full stripe movement area H, or the full stripe movement area H of the supply means 38. The switch arranged at a position separated by two or four lines from the left end of the line, and at a position separated by two or four lines from the right end of the entire moving region H of the supply means 38. It may be a switch arranged.

Overall side view of riding rice transplanter Side view of seedling planting device and feeding device Schematic plan view showing the configuration of the seedling planting device Rear view of seedling planting device and feeding device Vertical side view of the main part showing the configuration of the supply device Partially longitudinal rear view showing the configuration of the feeder Vertical side view of the main part showing the configuration of the drive means Rear view of main part showing configuration of position detecting means Longitudinal rear view of main part showing supply unit starting structure in supply device Side view of main part showing supply part starting structure in supply apparatus Longitudinal side view of the main part showing the feeding amount reduced state of the feeding mechanism Longitudinal side view of the main part showing the feeding amount increased state of the feeding mechanism Longitudinal side view of the main part showing the configuration of the feeding mechanism Front view of essential parts showing configuration of feeding mechanism Longitudinal rear view of main part showing configuration of feeding mechanism Longitudinal rear view of main part showing dustproof structure of feeding mechanism Block diagram showing control configuration Schematic showing the moving area of the supply means Longitudinal side view of the main part showing the container attachment / detachment structure Perspective view showing container and weighing container

Explanation of symbols

DESCRIPTION OF SYMBOLS 4 Seedling planting device 17 Seedling mounting stand 36 Supply apparatus 38 Supply means 46B Container mounting part 80 State detection means 81 State detection means 82 Position detection means 83,92 Operation means 83 Control means 91 Container 92 Command means

Claims (9)

It is a granular material supply amount measurement structure of a rice transplanter equipped with a supply device provided with a supply means for feeding stored seedlings by a predetermined amount to seedlings,
At the time of the weighing operation for measuring the supply amount of the granular material supplied from the supply means to the seedling, the supply means supplies the granular material to the seedling amount set corresponding to the usage amount of the granular material. Operating means for operating the supply means so as to perform a predetermined metering operation necessary for
A structure for measuring a granular material supply amount of a rice transplanter, wherein the supply means is provided with a container attachment portion that enables the container used during the weighing operation to be attached and detached.   The supply means supplies powder particles while moving in the left-right direction with respect to a plurality of placed seedlings placed on a seedling mounting stage of a seedling planting device, and as the predetermined measuring operation, The granular material of the rice transplanter of Claim 1 comprised so that the movement distance required in order to supply a granular material with respect to the seedling amount set corresponding to the usage-amount of a granular material may be moved. Supply amount measurement structure.   The structure for measuring a granular material supply amount of a rice transplanter according to claim 2, further comprising position detection means for detecting arrival of the supply means at a predetermined position.   The structure for measuring the amount of supplied granular material of a rice transplanter according to claim 3, wherein the position detecting means is configured to detect arrival of the supplying means at a predetermined position from a moving distance of the supplying means.   Command means for instructing the start of the predetermined metering operation, and control means for operating the supply means so that the supply means automatically performs the predetermined metering operation based on the start command. The granular material supply amount measuring structure of the rice transplanter as described in any one of Claims 1-4 comprised from these. A state detecting means for detecting whether or not the state of the supplying means is a state in which the predetermined metering operation can be started;
When the control means is instructed by the command means to start the predetermined metering operation, the state detecting means detects that the state of the supply means is not in a state where the predetermined metering operation can be started. 6. The rice transplanter powder according to claim 5, wherein when the feeding means is operated, the state of the feeding means is switched to a state where the predetermined metering operation can be started. Granule supply measurement structure.   The movement start point and the movement end point when the supply unit moves in the predetermined weighing operation are made to coincide with the moving end portions of the supply unit set corresponding to the left and right ends of the seedling platform. The structure for measuring the amount of supplied granular material of a rice transplanter according to any one of claims 2 to 4.   The operation means is composed of an artificial operation section and a control means for operating the supply means in response to an operation of the artificial operation section so that the predetermined weighing operation is performed by an artificial operation. The granular material supply amount measurement structure of the rice transplanter as described in any one of 4 and 7.   The structure for measuring the amount of supplied granular material of a rice transplanter according to claim 8, further comprising a recognition unit for recognizing an operation timing of the artificial operation unit.

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