JPH0595225U - B. Plant transfer device for grass transplanter - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a seedling transfer device for a rush transplanter, which can prevent tilting of the roller portion on the free end side due to belt tension and the like, and can eliminate oblique feeding of seedlings and detachment of the belt. [Structure] On the seedling supplying side, a seedling receiving / transporting band 14a and a seedling pressing / transporting band 50 are provided above the seedling pressing / transporting band 50, and the seedling pressing / transporting band is supported by a support frame 55 of the seedling pressing / transporting band with the transport end side roller shaft 34 as a fulcrum.
The auxiliary member 60 is arranged sideways of the support frame, one end of the auxiliary member is fixed to the support frame, and the other end is rotated around the roller shaft on the transfer end side of the seedling pressing transfer belt. Freely pivoted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seedling conveying device for a grass transplanter.

[0002]

[Prior Art]

 The applicant of the present invention responded to the lodging transport section that transports the grass seedlings connected in strips by taping in the lodging posture, and the proper removal posture of the seedlings in the lodging posture sent by the lodging transport unit by the planting rod. We have proposed a grass transplanter equipped with a seedling transfer device in which a seedling posture changing and transferring section that transforms it to an upright posture is installed from the seedling supply side to the seedling take-out side (Practical application No. 3-56715).

[0003]

[Problems to be solved by the device]

 The present invention relates to an improvement of the above-mentioned grass-planting transplanter, in which a seedling-holding transport zone, which forms a part of the lodging transport section together with the seedling receiving transport zone, is used as a fulcrum at the transport end side. The open / close direction allows the seedlings to be easily replenished and the transporting action to be ensured, while the seedlings are transported by the rush transplanter, which has significantly increased the strength of the support frame of the seedling holding transport belt. It is intended to provide a device.

[0004]

[Means for Solving the Problems]

 The seedling conveying device of the grass transplanter according to the present invention was devised to achieve the above-mentioned problems, and a seedling receiving and conveying zone and a seedling pressing and conveying zone above it are provided on the seedling supplying side. In contrast, the seedling holding conveyor belt is constructed so that it can be tilted up and down together with the support frame of the seedling holding conveyor belt with the roller shaft on the conveying end side as a fulcrum. The gist is that one end of the material is fixed to the support frame, and the other end is pivotally supported on the roller shaft on the terminal end side of the seedling pressing carrier belt.

[0005]

[Action]

 According to the present invention, since the support frame structure of the seedling pressing conveyance belt is greatly strengthened by the auxiliary member, inclination of the free end side roller portion due to belt tension or the like is prevented, and thereby the conveyance belt detachment is eliminated. At the same time, the transfer posture will not be disturbed due to the oblique feeding of seedlings, and accurate transplantation will be performed.

[0006]

【Example】

 The structure of the present invention will be described with reference to an embodiment shown in the drawings. In the drawing, a lifting link is provided behind the running part (main unit) 1 of the riding rice transplanter having a driver's seat 1a, an assistant seat 1b, a spare seedling support frame 1c, an assistant footrest 1d, and an assistant backrest 1e. An example is shown in which a grass transplanter (six-row planting) P is attached via the mechanism 2. (A) The grass transplanter P is equipped with a planting section 7 composed of a seedling placing table 3, a drive case 4, a planting rod 5 and a float 6 for sliding down a rice field. At the seedling take-out port S, the planting rods 5 that move up and down draw a loop-shaped turning locus R at the seedling take-out port S, and scrape and sandwich the plants one by one. It is designed to be continuously planted in.

The seedling placing table 3 comprises bottom plates 9a and 9b fixed to a pair of left and right seedling conveying device supporting frames 9. Below the inclined upper end side of the seedling placing table 3, six seedlings corresponding to the number of rows of the planting portions 7 are provided. Seedling box mounting bases 11 on which the individual seedling boxes 10 are detachably mounted are respectively arranged. In each seedling box 10, the stem a is cut to 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 strip-shaped rush seedling (tape seedling) 12 wound in a spiral shape from the outside is accommodated in a zigzag shape (the length of the tape seedling is 10 to 12 m, the thickness is 15 to 25 mm, in the field). The planting length of the seedlings is about 100 m), and the strip-shaped grass seedlings 12 are installed from the tip end side between the partition plates 13 assembled on the seedling mounting table 3 in correspondence with each planting strip. Then, the seedlings are transported to the seedling take-out port S side by the planting rod 5.

Then, the seedling carrier 8 transfers the seedlings in a lodging posture to the lodging carrier unit 14, and the seedlings 12 in the lodging position sent by the lodging carrier unit 14 are properly taken out by the planting rod 5. The seedling posture changing / conveying unit 15 transforms into a corresponding standing posture. Reference numeral 16 is a planting part rolling support hitch, 17 is a wire drawing marker, 18 is a stay, 19 is a planting part stand that can be raised and lowered, and 20 is a transmission cover.

Reference numeral 21 denotes a seedling feeding portion provided on the feeding end portion side (the seedling take-out port S side) of the seedling posture changing / transporting portion 15, which is a seedling support composed of upper and lower three-stage feeding rotors 22, 22a, 22b and an elastic body. It is composed of guides 23, 23a, 23b, and a cutting part 24 for dividing each band-shaped seedling into individual plants. Further, a pair of cutting blades 25 and receiving blades 26 that reciprocally swing toward and away from each other are arranged in the cutting portion 24 of each line. The operation of the cutting unit 24 is set so as to match the transfer speed of the seedling transfer device 8 and the rotation of the planting rod 5, and the scraping amount of one plant can be adjusted. ing. Reference numeral 27 is a gutter-shaped seedling root guide, 28 is a planting guide arranged along the descending locus of the planting rod 5, and 29 is a feeder bracket.

By the way, the lodging transfer unit 14 and the seedling posture changing transfer unit 15 which constitute the seedling transfer device 8 are each composed of a wide belt (transfer belt), and are arranged on the side of the base of the lodging transfer unit 14 and on the tip side of the stem. The seedling receiving and conveying belt 14a, which is distributed and erected on the left and right, is stretched between a roller 31 supported by a roller shaft 30 and a roller 33 fixed to the first drive shaft 32. Further, the transport belts (twist belts) 15a and 15b on the seedling posture changing transport section 15 side are located in the middle of the left and right seedling receiving transport zones 14a on the lodging transport section 14 side so as to sandwich the midway portion of the transported seedling 12 in the stem body direction. And a roller 35, 36 fixed to the first drive shaft 32 and a second drive shaft 34 that meshes with the first drive shaft 32 in the opposite direction via the gears G 1 and G'in relation to the first drive shaft 32 and the seedling. The rollers 37 and 38 supported in the feeder bracket 29 of the feeding portion 21 are respectively stretched from a horizontal direction to a vertical direction in a twisted state. Reference numeral 39 is a rubber blade rotating body for feeding the seedlings which rotates integrally with the roller 31. A pair of upper and lower tension rollers 40, which press the non-conveying working side of the conveying belts 15a and 15b, are provided on the side of the conveying belts 15a and 15b nearer to the conveying start end so as to rotate via a roller shaft 41. 42 is a tension plate and 43 is a tension roller. Reference numeral 44 is a rubber body for preventing the rollers from slipping, and 45 is a belt guide plate.

Reference numeral 50 denotes a seedling holding and conveying belt which is rotatably provided above the conveying surface of the seedling receiving and conveying belt 14a which constitutes the lodging conveying section 14, and the seedling holding and conveying belt 50 is a seedling feeding seedling. The seedling supply side is vertically movable with the front side in the transport direction as a fulcrum so that it can be easily set to the back. In this embodiment, the seedling holding and conveying belt 50 is arranged above the seedling receiving and conveying belt 14a on the side closer to the root of the seedling 12. Immediately, the roller 52 is rotatably supported by the L-shaped plate 51 rotatably supported on the second drive shaft (transport end side roller shaft) 34, and is used for lifting and tension adjustment. A plate 54 having a handle 53 fixed thereto is connected and fixed through a long hole c and a bolt d so as to be adjustable forward and backward, and a supporting frame 55 is provided between the roller 52 and a roller 56 fixed to the second drive shaft 34. The seedling pressing conveying belt 50 is hung, and the seedling receiving conveying belt 14a and the seedling pressing conveying belt 50 are configured so that the hard root side of the grass seedling 12 is conveyed while being clamped from above and below with an appropriate pressing force. It is a thing. Then, the L-shaped rod 57 protruding from the support frame 51 is fixed on the partition plate 13 in order to keep the seedling-holding carrying belt 50 at an appropriate holding interval (10 to 15 mm) with respect to the carrying surface of the seedling receiving and carrying belt 14a. It is detachably held by the elastic clamp 58. In addition, the seedling pressing conveyance 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 shaft 34.

A plate-shaped auxiliary member 60 is disposed on the side of the support frame 55 of the seedling pressing conveyance belt 50, and one end of the auxiliary member 60 is supported via a bracket 61 and a stay 62. The frame 55 is fixed to the L-shaped plate 51, and the other end is rotatably supported by the second drive shaft (transport end roller shaft) 34 of the seedling pressing transport belt 50 via a collar 34 '. With this configuration, the support frame 55 in a cantilevered state with respect to the second drive shaft 34 is integrally connected to the auxiliary member 60, and a frame structure having a rectangular shape in plan view as a whole is formed via the second drive shaft 34. Is becoming

Reference numeral 63 denotes a seedling sensor for detecting the seedling shortage that detects that the grass seedlings 12 on the lodging transportation unit 14 have disappeared (or have decreased). It is located on one side of the seedling placing table 3 and is provided on the back side of the seedling placing table 3, and its elastic sensing portion (sensor bar) 63a is exposed through the window hole 9b opened in the seedling placing table bottom plate 9a into the seedling conveying passage r 2. The bullet is urged upward as much as possible. The seedling sensor 63 is linked to an alarm means 65 such as a buzzer or a lamp provided on the monitor panel 64, and the sensing unit of the seedling sensor 63 while the rush seedling 12 is flowing on the lodging transport unit 14. Since the switch 63a is held in the OFF state because 63a is in contact with the seedling a and is pushed downward, when the seedling 12 is cut off, the sensor 63a elastically returns upward and the switch is turned on and the alarm means 65 is automatically activated. It is designed to be displayed (or buzzer notification). This seedling sensor 63 is provided for each row, and each seedling sensor 63 is connected in parallel or in series to the alarm means 65, and an alarm is issued when the seedling 12 of any row is in a seedling-out state. It is like this. A pressing body 66 is provided near the upper part of the seedling sensor 63 to control the rising of the seedlings. In this embodiment, one end of a pressing body 66 made of an elastic wire which is long in the seedling conveying direction is fixed to the mounting stay 62 of the auxiliary member 60.

Numeral 70 is a detection arm for detecting seedling clogging, and this detection arm 70 is in a state where the detection arm 70 is in close proximity to the feeding terminal end of the seedling posture changing and carrying section 15 and straddles the seedling take-out port S to the left and right. And the posture for detecting seedling clogging can be switched. When the detection arm 70 changes from the proper seedling scraping posture to the seedling jam detection posture, the detection arm 70 is electrically connected to a safety circuit such as an alarm circuit to notify the seedling jam. In the present embodiment, the detection arm 70 is made of a wire rod having a substantially U-shape in a plan view with the central portion projecting forward in the seedling feeding direction and bent in an inverted V shape in a side view. 23, 23a, the left and right base ends of which are vertically rotatably fitted around a support shaft 71 projecting from the left and right side plates of the feeder bracket 29, and one of the winding ends is attached. The micro switch 72 is fixed to one side of the feeder bracket 29, and the free end side of the switch actuating piece 72a made of a leaf spring is attached to the detecting arm side actuating portion 70a while extending laterally to form the actuating portion 70a. To a proper state for scraping the seedlings by elastically abutting the seedlings (the seedling contact portion at the tip of the arm is located below the support shaft 71 as shown by the solid line in FIG. 10). Keep the seedling pressure F higher than a predetermined pressure on the detection arm 70. Then, the detection arm 70 rotates downward about the support shaft 71 as a fulcrum against the spring pressure of the actuating piece 72a and transforms into the seedling clogging detection posture (state shown by phantom line) and the actuating piece 72a moves. The switch button 72b is pressed to turn on the switch, whereby the seedling clogging warning lamp 73 is turned on.

In the above-mentioned configuration, first, the handle 53 is lifted to erect the seedling retainer carrying belt 50 as shown in FIG. 4, and the feeding tip end side of the band-shaped grass seedlings 12 housed in each seedling box 10 is fed. After placing the seedlings on the seedling receiving and transporting belts 14a of the lodging transporter 14 and lowering the seedling holding and transporting belt 50, when the float 6 is grounded on the paddy field and the machine 1 is advanced to start planting, The seedling 12 is transported in a lying posture while the stem portion a near the root portion b is sandwiched by the seedling receiving and transporting zone 14a and the seedling holding and transporting zone 50. From the terminal end of the lodging transport section 14, the grass seedlings 12 are taken over by the transport zones 15a and 15b of the seedling posture changing transport section 15, and the intermediate zones in the stem and blade direction are sandwiched by both transport zones 15a and 15b, and gradually fall from the lying posture. After being transferred to the seedling feeding section 21 side while being transformed into a standing posture with the root b facing downward, the tape T portion is cut one by one from the feeding tip end side by the cutting blade 25 and the receiving blade 26 one by one, and then at all times. It is sandwiched by the rotating planting rods 5 and continuously planted on the rice field.

By the way, in the case where the seedling pressing conveyance belt 50 is mounted on the second drive shaft (conveying end side roller shaft) 34 simply in a cantilevered manner so that it can be tilted up and down. (The leading end side roller shaft 52 cannot be fixed and must be a free end.) If the belt tension is adjusted, the conveyance starting end side roller 52 part tends to tilt in the belt tension direction due to backlash of the shaft support. Although the seedlings 12 may be slanted (disturbed in conveyance) and the transfer belt 50 may be displaced (belt disengagement) frequently, the seedling pressing transfer belt 50 is attached to the second drive shaft 34 by the support frame 55 and the auxiliary member 60. On the other hand, since it has a structure in which it is supported at two points by sandwiching the transport belts 15a and 15b of the seedling posture changing transport unit 15, the support frame structure of the seedling pressing transport belt 50 has a planar rectangular shape via the second drive shaft 34. A strong frame structure and belt tension Even if the alignment is performed, the conveyance start end side roller 52 does not incline in the belt tension direction, and therefore, the seedling conveyance disturbance or belt detachment due to the inclination of the conveyance start end side roller 52 part is prevented.

As shown in FIGS. 2 and 5, the auxiliary member 60 is located above the left and right seedling receiving and conveying belts 14a and 14a, and is installed along the seedling conveying surface from the side closer to the start side to the end side. As a result, the auxiliary member 60 has a conveyance guide action that also functions to prevent floating on the tip side of the stem, and the conveyance action of the seedlings is performed extremely well.

[0018]

[Effect of the device]

 Since the present invention is configured as described above, the supporting member structure for supporting the seedling pressing conveyor belt is significantly strengthened by the auxiliary member, so that the inclination of the free end side roller portion due to belt tension and the like can be prevented. The removal of the transfer belt is eliminated, and the transfer posture is not disturbed due to the oblique feeding of seedlings, which enables accurate transplantation.

[Brief description of drawings]

FIG. 1 is a side view showing a state in which a rush planting machine is mounted on a main body of a riding rice transplanter.

FIG. 2 is a perspective view of a seedling carrier device and a seedling feeding section.

FIG. 3 is a partially cutaway plan view of a fall transport unit.

FIG. 4 is a side view of a laid-down conveyance unit.

FIG. 5 is a partially cutaway sectional view of a main part.

FIG. 6 is a side view of a striped grass plant.

FIG. 7 is a perspective view of a seedling feeding section.

FIG. 8 is a schematic side view showing a relationship between a seedling feeding part and a planting rod.

FIG. 9 is a plan view of a seedling clogging detection device.

FIG. 10 is an explanatory view of the operation of the seedling clogging detection device.

[Explanation of symbols]

 5 Planting rod 8 Seedling transfer device 12 Bush seedling 14 Overturning transfer part 14a Seedling receiving transfer band 15 Seedling posture changing transfer part 34 Transfer end side roller shaft of seedling pressing transfer band 50 Seedling pressing transfer band 55 Supporting seedling pressing transfer band Frame 60 Auxiliary member

Claims (1)

[Scope of utility model registration request] 1. A seedling receiving and conveying belt and a seedling pressing and conveying belt are provided above the seedling supplying side, and the seedling holding and conveying belt is started together with the support frame of the seedling pressing and conveying belt with the roller shaft on the conveying end side as a fulcrum. It is configured to be inclinable, an auxiliary member is arranged on the side of the support frame, one end of the auxiliary member is fixed to the support frame, and the other end is rotatable about the roller shaft on the transfer end side of the seedling pressing transfer belt. A seedling transfer device for a grass transplanter characterized by being pivotally supported.