JPH0582210U - Seedling transfer device for seedling transplanter - Google Patents

Abstract

(57) [Summary] [Purpose] The seedling transfer posture can be smoothly and reliably transferred to the seedling transfer posture without disturbance or jamming of the seedling transfer posture during the seedling transfer process by the horizontal transfer unit, and the seedling transfer can be performed. An object of the present invention is to provide a seedling transfer device of a seedling transplanter that can prevent the occurrence of shortages due to delay in supply and can easily supply seedlings. [Structure] Lateral transfer unit 14 for transferring seedlings 12 in a lying posture
And a seedling transplanter equipped with a seedling transfer device 8 consisting of a seedling posture changing and transferring part 15 for transforming the seedlings into a standing position.
4, the seedling pressing conveyance belt 50 is provided so as to be rotatable and undulating so that the seedling supplying side is opened and closed vertically with the front side in the conveying direction as a fulcrum, and a mounting frame 55 for the seedling pressing conveyance belt 50. In addition, a seedling breakage detection sensor 60 linked to the alarm means 62 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seedling transfer device in a seedling transplanter such as a grass seedling transplanter.

[0002]

[Prior Art]

 The applicant of the present invention, as shown in FIG. 11, uses a lateral transport unit (A) for transporting a band-shaped grass grass seedling placed on a seedling stand (E) in a lying posture, and a horizontal transport unit (A). A seedling posture changing and conveying section (c) consisting of two endless belts (twisting belts) that transforms the sent-up seedlings into a standing posture that corresponds to the proper take-out posture by the planting rod (b). We have proposed a grass seedling transplanter equipped with a seedling transfer device that is erected from the seedling supply side to the seedling extraction side (Japanese Patent Application No. 3-69034, etc.), and in its own right, the horizontal transfer section (a) A seedling pressing guide (d) is provided along the surface above the seedling to improve the seedling feeding action, and a tension roller (f) is provided on the feeding start end side of the seedling posture changing and feeding section (c). The tension of the twist belt is maintained.

[0003]

[Problems to be solved by the device]

 However, since the above-mentioned seedling pressing guide (d) has a structure in which the fixing rod is simply brought into pressure contact with the side of the horizontal conveying section (a), it is difficult to set the seedling pressing guide (d) to an appropriate pressing force. , The root side or the stem side of the seedlings may be conveyed in an inclined posture leading to the smooth feeding of the seedlings, and in particular, a gap may be formed or clogged at the joint between the seedlings of the preceding seedling and the succeeding seedling. As a result, the transfer of seedlings from the horizontal transfer section (a) to the seedling posture changing transfer section (c) may become defective, and the operator does not have a sensor for detecting seedling breakage, causing the operator to cut seedlings during operation. You may notice that you run out of stock.

[0004]

[Means for Solving the Problems]

 The seedling transfer device of the seedling transplanter according to the present invention is based on the above-mentioned actual conditions, and includes a horizontal transfer section for transferring seedlings in a lying position and a falling position sent by the horizontal transfer section. The seedling transplanter equipped with a seedling transfer device that transforms the seedlings from the seedling feeding side to the seedling picking side and transforms the seedlings into an upright posture that corresponds to the proper picking posture by the planting rod. A seedling pressing conveyer belt is provided rotatably along the upper part of the section, and the seedling pressing conveyer belt is configured to be undulating so that the seedling feeding side opens and closes upward and downward with the front side in the conveying direction as a fulcrum. The gist of the present invention is to provide a sensor for detecting the absence of seedlings on the lateral transfer section on the mounting frame of the seedling pressing transfer band, and to link the sensor to the alarm means.

[0005]

[Action]

 The seedlings supplied to the start side of the horizontal transfer section are transferred by the horizontal transfer section consisting of an endless belt and the seedling pressing transfer belt while being clamped with an appropriate pressing force while maintaining an appropriate supply posture. The feeding of seedlings is smooth and reliable without disturbing the feeding posture or causing gaps between the preceding seedling and the succeeding seedling. For this reason, the seedlings are smoothly transferred to the seedling posture changing and transporting section without being damaged or jammed. In addition, when the seedlings on the lateral transport section are out of seedlings, the sensor detects it and alerts the operator, so that the seedling supply time is not missed.

[0006]

【Example】

 The structure of the present invention will be described with reference to an embodiment shown in the drawings. In the drawing, the running section (this machine) of a passenger rice transplanter having a driver's seat 1a, an assistant's seat 1b, and a spare seedling support frame 1c (the main unit) A, 6 rows of grass seedlings are planted via an elevating link mechanism 2. A device equipped with a transplanter P is illustrated. (A) The grass seedling transplanting machine P is equipped with a seedling placing table 3, a drive case 4, a planting rod 5, a planting section 7 including a float 6 for sliding down a rice field, and the like from the seedling supplying side to the seedling removing side. The grass seedlings transported by the seedling transporting device 8 installed on the table 3 are sandwiched by the planting rods 5 one by one and continuously planted on the rice field. The seedling mounting table 3 has bottom plates 9a and 9b fixed to a pair of left and right seedling carrier supporting frames 9, and six seedling mounting tables 3 are provided below the inclined upper end side of the seedling mounting table 3 corresponding to the number of rows of the planting section 7. A seedling box mounting table 11 (a structure of the seedling box mounting table 11 will be described later) on which the seedling box 10 is detachably mounted is connected in series. In each seedling box 10, the stem a is cut into a predetermined length, and the stem a near the root b is sandwiched with paper adhesive tape T from both sides (taping process), and the tape T portion is attached. A band-shaped sapling (tape seedling) 12 formed by winding a thread from the outside is stored in a zigzag shape (the length of the tape seedling is 10 to 12 m, and the planting length is about 100 m). , The striped grass seedlings 12 are taken out from the tip side by the planting rods 5 by the seedling transporting device 8 provided between the partition plates 13 assembled on the seedling mounting table 3 corresponding to each planting row. It is designed to be transported to the side. Then, the seedling transfer device 8 changes the lateral transfer section 14 for transferring the seedlings in a lying posture and the seedlings 12 in the lying position sent by the lateral transport section 14 to the standing posture corresponding to the proper take-out posture by the planting rod 5. It is composed of a seedling posture changing and conveying section 15 to be made to appear. 16 is a rolling support hitch for the planting section, 17 is a line drawing marker, 18 is a stay, 19 is a stand for the planting section that can be tilted up and down, 20 is a transmission cover, 21 is the transfer end side of the seedling posture changing transfer section 15 (the seedling take-out side) The seedling feeding / cutting device provided in (1) is composed of a stalk tip feeding rotary member 22, seedling support guides 23, 23a, 23c, and a cutting section 24 for dividing each band-shaped seedling into individual plants. Reference numeral 25 is a cutting blade supporting transmission case. On the left and right sides of the case 25, one set of cutting blades 26 that reciprocally swing toward and away from each other, and one set of receiving blades 27 are arranged. The cases 25 are arranged side by side. 28 is a gutter-shaped seedling root guide, and 29 is a planting guide.

By the way, the lateral conveying section 14 and the seedling posture changing conveying section 15 which constitute the seedling conveying device 8 are endless belts, respectively, and are distributed and installed on the lateral conveying section 14 side near the root and on the left and right on the stem tip side. The formed endless belt 14a is stretched between a pulley 31 supported by a pulley supporting shaft 30 and a pulley 33 fixed to first drive shafts 32, 32a for driving the seedling posture changing / transporting. The endless belts (twisting belts) 15a and 15b on the side of the seedling posture changing / transporting unit 15 sandwich the middle portion of the transporting seedlings 12 in the direction of the stem and body, and are intermediate parts of the left and right endless belts 14a on the side of the horizontal transporting unit 14. Pulleys arranged in front and fixed to the first and second drive shafts 32 and 32a and the second drive shafts 34 and 34a, which are separate left and right respectively, and a pulley supported in the mounting bracket 21a of the seedling feeding and cutting device 21. They are laid between 37 and 38 in a twisted state from a horizontal direction to a vertical direction, respectively. Reference numeral 39 denotes a stalk forward feeding gum blade rotating body that rotates integrally with the pulley 31. By the way, a pair of upper and lower tension rollers 40 that press the non-conveying side of the endless belts 15a and 15b are rotatably provided near the conveyance start ends of the endless belts 15a and 15b via a roller shaft 41. The tension roller 40 is formed in a truncated cone shape along the twisting direction of the endless belts 15a and 15b. 42 is a tension plate, and 43 is a tension pulley. 44 and 45 are bearings, and 46 is a rubber body for preventing slip.

Reference numeral 50 denotes a seedling-holding conveying band which is rotatably provided above the conveying surface of the endless belt 14a that constitutes the lateral conveying unit 14, and the seedling-holding conveying band 50 is a fulcrum on the front side in the conveying direction. As a result, the seedling supply side is constructed so that it can be opened and closed vertically. In this embodiment, the seedling holding and conveying belt 50 is arranged above the endless belt 14a on the root side of the seedling 12. That is, a pulley 52 is rotatably supported on a L-shaped support frame 51 that is rotatably supported by the second drive shafts 34 and 34a, and a grip 53 for lifting and tension adjustment is fixedly provided. A mounting frame 55 is provided which connects and fixes the plate 54 through an elongated hole and a bolt (not shown) so as to be adjustable forward and backward, and between the pulley 52 and a pulley 56 fixed to the second drive shaft 34, 34a. The seedling pressing conveyance belt 50 was hung on the above, and the endless belt 14a and the seedling pressing conveyance belt 50 were configured so that the hard root side of the grass seedling 12 was conveyed while being clamped from above and below with an appropriate pressing force. It is a thing. Then, in order to apply a proper elastic force to the conveying surface of the endless belt 14a, the seedling pressing conveyor belt 50 is moved in the direction of the endless belt 14a via the tensioning ammunition machine 57 stretched between the support frame 51 and the partition plate 13. I have been energized. The seedling pressing conveyor belt 50 can be maintained in an open state by an appropriate stop mechanism at a position rotated upward by 30 ° to 45 ° about the second drive shafts 34, 34a with respect to the conveyor surface. There is.

Reference numeral 60 denotes a sensor (sensor for detecting a seedling shortage alarm) that detects that the grass seedlings 12 on the lateral transport unit 14 have disappeared (or decreased). This sensor 60 transports the seedling pressing carrier belt 50. It is attached to the mounting frame 55 of the seedling pressing conveyor belt 50 via a bracket 61, located on one side near the starting end. The sensor 60 is linked to an alarm means 62 such as a buzzer or a lamp provided on the monitor panel. While the grass seedling 12 is flowing on the lateral transport section 14, the sensor 60 contacts the stem section a. Since the switch is held in the OFF state because it touches and pushes upward, when the seedling 12 is cut off, the sensor 60 elastically returns downward and the switch turns ON so that it is automatically displayed on the alarm means 62 (or buzzer notification). It has become. Incidentally, the seedling pressing conveyance belt 50 may be composed of two belts on the left and right, and the sensor 60 may be arranged in the middle thereof.

Now, the seedling box mounting table 11 is configured as follows. That is, the loop-shaped frame 67 formed by integrally connecting the front and rear horizontal rails 63 and 64 and the left and right vertical rails 65 and 66 is provided below the seedling transfer device 8 from the planting portion 7 via the stays 68 and 69. A front horizontal bar 63 of the frame 67 is provided on the bottom side of the seedling box 10 so as to extend forward through the space and below the middle part in the front-rear width direction of the frame 67 integrally with the frame 67. The front side of the seedling box abuts on the middle horizontal rail 70 and the rear horizontal rail 64 of the frame 67, respectively, so that the nursery box 10 is detachably supported in an inclined posture in which it is supported at three points. In this embodiment, a horizontally long rectangular frame 67 made of a round pipe is fixed to the planting portion 7 with brackets 71, 72 and bolts 73, 74, etc., and is attached via an upper stay 68 and a lower stay 69. When the seedling box 10 is set, the upper part of the side surface of the seedling box 10 is attached to and held by the partition plate 13.

Next, the transmission mechanism of the seedling carrier 8 will be described. Power is introduced from the PTO shaft S of the machine A through the universal joint shaft U into the planting part central transmission case 75, and then branched and one is transmitted to the planting rod 5 via the drive case 4 and the other. Is further branched to a cutting blade support transmission case 25 side and a seedling carrier 8 side by a bevel case 78 via a shaft joint 76 and a universal joint shaft 77 for absorbing assembly error. The power to the 8 side was appropriately changed by the speed change lever 80 in the speed change lever case 79 (the cutting amount of one plant, that is, the number of plantings was adjusted by changing the seedling transfer speed. The rotation speed of the planting rod 5 was constant). After that, it is transmitted to the counter shaft 81 by chain transmission, and from the counter shaft 81 to the second drive shafts 34 and 34a for seedling posture changing / conveying drive by chain transmission, and further to the first by rotation of the gears 82 and 83 which are always meshed. Transmitted to the drive shafts 32, 32a First and second drive shafts 32, 32a, is a pulley 33,35,36,56 fixed to 34,34a is configured to rotate. Reference numeral 84 is a chain tensioner, and 85 and 86 are transmission chains. By the way, a pin clutch 87 of a stapling device is mounted on the shaft ends of the second drive shafts 34, 34a. That is, the input sprocket 88 on the side of the second drive shaft is rotatable with respect to the shafts 34 and 34a, and the pin 90 fixed to the shifter 89 is an input sprocket 91a provided on a clutch lever (bar stop lever) 91. The clutch lever is held in the engaged state by being fitted into the pin hole 88a provided in the shaft 88 and the pin hole 82a provided in the gear 82. When the clutch 90 is tilted to the clutch disengagement side, the pin 90 disengages from the pin hole 82a provided in the gear 82 and the rotation of one of the second drive shafts 34a or 34 is stopped, so that the seedling transfer on one side of the left and right sides is interrupted. ing. Reference numeral 92 is a shifter arm, 93, 94 and 95 are sprockets, and 96 is an output shaft. In addition, in the present embodiment, the seedling transplanter intended for the rush seedlings 12 connected in a band by taping is described, but the present invention relates to a rose rush seedling or a seedling transplanter other than the rush seedling. Can also be applied.

In the above-mentioned configuration, first, the handle 53 is lifted to erect the seedling pressing and conveying belt 50, and the feeding tip side of the band-shaped grass seedlings 12 accommodated in each seedling box 10 is set to the end of the lateral conveying section 14. After placing the seedlings on the belts 14a and lowering the seedling-holding carrier belt 50, when the float A is brought into contact with the paddy field and the machine A is moved forward to start planting, the grass seedlings 12 are stalks near the root b. The part a is conveyed by being in a lying posture while being sandwiched by the lateral conveyance part 14 composed of the endless belt 14a and the seedling pressing conveyance belt 50. Then, from the terminal end of the lateral conveying section 14, the grass seedling 12 is taken over by the endless belts 15a, 15b of the seedling posture changing conveying section 15, and the endless belts 15a, 15b sandwich the middle portion in the direction of the stem and blade gradually from the lying posture to the root. After being transferred to the seedling feeding / cutting device 21 side while being transformed into an upright posture with b downward, the tape T portion was cut one by one from the feeding tip end side with the cutting blade 26 and the receiving blade 27, It is sandwiched by the rotating planting rods 5 and planted continuously on the rice field. By the way, the grass seedlings 12 supplied to the starting side of the lateral conveying section 14 are hard stalks near the root b while the proper feeding posture is maintained by the lateral conveying section 14 consisting of the endless belt 14a and the seedling pressing conveying belt 50. Since the a side is conveyed while being sandwiched with an appropriate pressing force, the feeding posture of the seedlings is not disturbed and the seedlings can be fed smoothly and reliably. Therefore, the seedlings 12 are smoothly taken over to the seedling posture changing and conveying section 15 without any damage or clogging of the seedlings. In addition, since the seedling pressing conveyer belt 50 is urged toward the lateral conveying section 14 by the tension bullet 57, the seedling pressing conveyer belt 50 is vertically displaced to follow the seedling thickness, so that the seedling feeding action is performed. Is carried out more reliably, and the seedling-holding and carrying belt 50 does not vibrate or flutter even if the machine body vibrates. Further, when the feeding end portion of the band-shaped grass seedling 12 passes the position of the sensor 60, the sensor 60 detects the seedling shortage and notifies it by the warning means 62 on the monitor panel. A new seedling box 10 accommodating grass seedlings 12 is exchanged to supply seedlings. By the way, the above-mentioned sensor 60 detects a hard portion on the root side of the seedling 12 (in the case of a tape seedling, detects an aligned portion close to the tape T), so that the sensing operation is reliably performed. Since it is provided on the side closer to the transport start end of the presser foot transport belt 50, it is possible to detect a seedling shortage condition at a relatively early time and prevent a delay in supplementation. The 60 also moves upward together with the seedling pressing conveyor belt 50, and the sensing portion of the sensor 60 can be separated from the conveying surface of the lateral conveying portion 15 as far as possible, so that the sensor 60 interferes with the seedling supply. It is easy to supply seedlings without causing problems and can be easily inserted deeply (forward in the transport direction) to join the tip of the supplemented seedling to the end of the preceding seedling. At the time of this seedling replenishment, hold the handle 53 to raise the seedling holding belt 50, open the state, join the feeding tip of the new seedling 12 to the rear end of the preceding seedling, and then put the seedling holding belt 50 back to the original position. Restore and restart planting work. As a result, there is no gap between the preceding seedling and the succeeding seedling and the feeding of seedlings is not intermittent, so reliable and reliable seedling feeding is always performed.

[0013]

[Effect of the device]

 Since the present invention is constructed as described above, the feeding posture of seedlings is not disturbed, and there is no gap between the preceding seedling and the succeeding seedling, so that the feeding of seedlings is not intermittent, and it is smooth and reliable. In addition to the ability to feed seedlings, it is possible to eliminate damage to seedlings and jams in transport, and to smoothly transfer seedlings to the seedling posture changing and transporting section. In addition, since the seedling run-out condition in the horizontal transport section is detected and an alarm is automatically issued, there is no chance of missing the seedling supply timing and stalls occur. By doing so, the sensor also retracts upward together with the seedling holding conveyor belt, so seedlings can be easily supplied.

[Brief description of drawings]

FIG. 1 is a side view showing a state in which a grass transplanter transplanter is attached to a main unit of a riding rice transplanter.

FIG. 2 is a plan view showing a state in which a grass transplanter transplanter is attached to the passenger rice transplanter.

FIG. 3 is a side view of a grass plant transplanter.

FIG. 4 is a perspective view of a main part.

FIG. 5 is a partially cutaway front view of the seedling carrier device without the endless belt.

FIG. 6 is a front view of a seedling cutting part.

FIG. 7 is a plan view of a seedling box mounting table.

FIG. 8 is a schematic explanatory view of a transmission mechanism.

FIG. 9 is an explanatory diagram showing a structure of a transmission mechanism.

FIG. 10 is a cross-sectional view of a line stopper device.

FIG. 11 is a side view of a conventional rush plant transplanting machine.

[Explanation of symbols]

 8 Seedling Conveying Device 12 Bush Seedling 14 Lateral Conveying Section 14a Endless Belt 15 Seedling Posture Transfer Conveying Section 15a Endless Belt 15b Endless Belt 50 Seedling Holding Conveying Belt 55 Mounting Frame 60 Sensor 62 Alarm Means

Claims (1)

[Scope of utility model registration request] 1. A lateral transport unit for transporting seedlings in a lying posture, and a seedling posture conversion for transforming the seedlings in the lying posture sent by the lateral transport unit into an upright posture corresponding to an appropriate take-out posture by a planting rod. In a seedling transplanter equipped with a seedling transfer device which is constructed from a seedling supply side to a seedling removal side with a transfer section, a seedling pressing transfer belt is rotatably provided above the lateral transfer section, and the seedling pressing transfer is performed. The band is constructed so that the seedling supply side can open and close in the vertical direction with the front side in the transport direction as a fulcrum, and a sensor is installed in the mounting frame of the seedling retainer transport band to detect that there is no seedling on the horizontal transport section. A seedling transfer device for a seedling transplanter, wherein the sensor is linked to an alarm means.