JPH0563220U - Seedling holding conveyor belt device for transplanters - Google Patents

Abstract

(57) [Summary] [Purpose] Belt-shaped misaligned belts are pushed in the proper direction while pressing the belt-shaped seedlings on the seedling-transporting belt in an appropriate gap according to their thickness to crush the belt-shaped seedlings to a certain thickness. Provide a conveyor belt that does not come off. [Constitution] Seedling conveyor belt 17 provided below and this belt
A belt-shaped seedling is conveyed laterally in the conveyance direction by a seedling-holding conveyor belt 18 provided at a predetermined interval slightly above the thickness of the belt-shaped seedling 17 and conveyed. Providing a ridge portion 18A in the longitudinal direction of the back surface,
A seedling holding conveyer belt device for a transplanter in which pressing plates 26 made of an elastic material are fixed to brackets 23 supporting the seedling holding conveyer belt on both sides of the protruding portion 18A.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seedling-holding conveyor belt device for a transplanter, which is mounted on a traveling machine body and sequentially conveys a band-shaped seedling to a planting device side while being transported by a transport mechanism and is planted in a field scene by a planting claw. ..

[0002]

[Prior Art]

 The inventor of the present invention conveys strip-shaped seedlings formed by pinching the roots of plant seedlings such as grass with a paper adhesive tape from both sides and winding the tape portion from the outside in a spiral shape. We propose a transplanter that has a transplanting part that is cut by a predetermined number at the end of the plant and then held by a planting claw that carries out a planting motion and planted in a field scene (Japanese Patent Application No. 3-180340). ..

In such a transplanter, a transplant portion is mounted on a rear portion of a traveling body so as to be able to move up and down, a driver's seat facing the traveling direction of the traveling body is provided in the center of the body, and a driver sits there. While riding and maneuvering the traveling aircraft, the vehicle is traveling in a predetermined direction in a field scene. A seedling box is supported on the seedling box support frame above the transplanting section, and the strip-shaped seedlings in the seedling box are transported to the lower part for planting while being held in a lying state and orthogonal to the transport direction. (1) A transport mechanism, and a second transport mechanism that transforms the strip-shaped seedlings transported downward to a standing state so that they can be easily captured by the planting claws and transfers them to the seedling feeding device side are further provided. The planting guide provided at the end of the feeding of the device guides the seedlings held by the planting claws of the planting rod while planting them in the field.Generally, these transplanters are multi-row planting. There is.

[0004]

[Problems to be solved by the invention]

 In the above-mentioned first transfer mechanism, seedling transfer belts are installed in the lower part between the partition plates that stand upright, and the band-shaped seedlings supported and transferred by the transfer surface of the seedling transfer belt are not disturbed in the collapsed state. In order to hold and convey the seedlings while holding them, the seedling holding conveyor belt is provided with a predetermined gap that is slightly narrower than the conveying surface of the seedling conveying belt and the thickness of the band-shaped seedlings. The drive shaft on the terminal side of the seedling transportation can be lifted up and down freely.

On the other hand, the above-mentioned seedling pressing conveyor belt moves while pressing an irregular shaped belt-shaped seedling placed orthogonally on the seedling conveyor belt. Is thick and hard, and the stem side tends to be thin, and it is rarely pressed with a uniform force overall, so there is a problem that the belt shifts in the width direction or comes off. There was a risk that the band-shaped seedlings would not be conveyed correctly and planting would not be carried out smoothly. In addition, the thickness of the band-shaped seedlings is often not constant at about 15 to 25 mm, and therefore, if the thickness of the band-shaped seedlings is too thick, the band-shaped seedling holding conveyor belt may damage the band-shaped seedlings.

As described above, in the first transport mechanism, the band-shaped seedlings lying sideways in the advancing direction of the seedling-holding carrier belt are crushed to a certain thickness by appropriately changing the pressure depending on the thickness of the band-shaped seedlings. However, it is necessary to install a belt for transferring seedlings that can be transported in the correct direction for smooth planting of band-shaped seedlings. As described above, according to the present invention, it is possible to convey the belt-shaped seedlings on the seedling conveying belt in the correct direction while pressing the belt-shaped seedlings on the conveyor belt in an appropriate gap according to the thickness and crushing the belt-shaped seedlings to a certain thickness. Alternatively, it is intended to provide a seedling pressing conveyor belt which does not come off.

[0007]

[Means for Solving the Problems]

 The seedling-holding conveyor belt device of the transplanter according to the present invention conveys the band-shaped seedlings along the upper surface of the seedling placing table and cuts them into a predetermined number by the cutting device provided at the lower end of the seedling placing table. In the transplanter configured to be planted in the field by the planting claws provided at the tip of the planting rod, the seedling conveyor belt provided at the bottom and the thickness of the belt-like seedling above this belt were made slightly smaller than the thickness. A band-shaped seedling is conveyed laterally in the conveying direction by a seedling-holding conveyer belt provided at a predetermined interval, and a ridge is formed on the back surface of the seedling-holding conveyer belt in the longitudinal direction. The pressing plate made of an elastic material is fixed to both sides of the ridge, and the pressing plate is fixed to the bracket that supports the seedling pressing belt.

[0008]

[Work]

 Since the seedling pressing conveyor belt has a protrusion on the back surface in the longitudinal direction and is guided by the pressing plates arranged on both sides of this protrusion, there is no lateral slippage of the conveyor belt or disengagement due to this, and it is correct. The belt-shaped seedlings can be conveyed while being pinched in the direction, and the pressing plate has elasticity so that the belt-shaped seedlings are crushed to a certain thickness, and the pressure is appropriately changed according to the thickness of the belt-shaped seedlings. be able to.

[0009]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall side view showing an embodiment of a transplanter provided with a seedling presser conveying belt device according to the present invention, FIG. 2 is an enlarged side view of the transplanter of FIG. 1, and FIG. 3 is a belt-like seedling conveying mechanism of FIG. FIG. 4 is a perspective view of the holding plate in the seedling-holding conveyor belt shown in FIG. 3, and FIG. 5 is a side view of another example of the holding plate shown in FIG. ..

First, referring to FIG. 1 and FIG. 2, reference numeral 1 is a traveling machine body having drive wheels and steering wheels, and a transplanting section 2 for multi-row planting is rearwardly movable by a lifting link 1a. Is mounted on the front of the traveling body 1 and is equipped with a spare seedling support frame 5 that supports a seedling box 4 that stores the belt-shaped seedlings in a folded shape. As shown in the drawing, a driver's seat 6 facing the traveling direction F of the aircraft is provided.

Further, a first transfer mechanism 10 for holding the belt-shaped seedlings of the seedling box 4 supported by the seedling box support frame 9 of the transplanting section 2 in a lying state orthogonally to the transport direction and transporting the same downward, Each strip is provided with a second transport mechanism 30 that transforms the transported strip-shaped seedlings into a standing state so that they can be easily planted and transfers them to the seedling feeding device 11. Then, the seedlings held by the planting claws 16 of the planting rods 15 rotatably supported by the drive case 14 are guided by the planting guides 13 provided at the feeding end portions of the above-mentioned seedling feeding devices 11. Then, it can be planted in the field.

Details of the transplantation part of the present invention have already been proposed in Japanese Patent Application No. 3-180340, Japanese Patent Application No. 3-56680, Japanese Patent Application No. 3-69034, etc., and are described in this specification. The structure and description of the parts not described shall refer to the specification and drawings of these applications. The first transfer mechanism 10 arranges seedling transfer belts 17 and 17a on both sides of a guide plate 20 which forms a part of the seedling mounting table between the two partition plates 12, and the seedling transfer belts 17 have an upper surface. Seedling holding belts 18 are provided in parallel with each other while keeping an interval H of, for example, about 10 to 15 mm, which is slightly narrower than the thickness of a band-shaped seedling having a thickness of 15 to 25 mm. On the other hand, the seedling conveying belts 17 and 17a are wound around the pulleys 21 and 22, and the seedling pressing belt 18 is provided with a pulley 24 provided at the tip of the bracket 23 that swings in the arrow X direction with the drive shaft 19 as the pivot point. It is wound around a pulley 25 provided on the drive shaft 19 so that the belt-shaped seedlings can be easily opened between the belts 17 and 18 when the belt-shaped seedlings are sandwiched between the seedling conveying belt 17 and the seedling-holding belt 18. It is configured to be able to.

Further, a hook 23a is fixed to the bracket 23, and the hook 23a is fitted to a holder 23b made of a leaf spring fixed to the partition plate 12 and supported at a predetermined position. , The distance H is maintained. The second transport mechanism 30 has a pair of belts 31 and 31a wound around a pulley 25 provided on the drive shaft 19 and a pulley 25a provided on the drive shaft 19a, and is laid sideways by the first transport mechanism 10. The belt-like seedlings are twisted by 90 ° so that the transferred belt-like seedlings can be received as they are and the seedling feeding device 11 below can change them to a standing state.

As shown in FIG. 4, the guiding means of the seedling conveying belt 17 which constitutes the seedling pressing conveyer belt device is a seedling pressing conveyer that clamps and conveys a belt-shaped seedling laterally placed on the seedling conveying belt 17 while holding it. A belt 18 is provided, and a ridge portion 18A is provided in the center of the back surface of the seedling pressing conveyor belt 18 in the longitudinal direction. Two pieces made of an elastic material are provided on both sides of the ridge portion 18A. One end of the pressing plate 26 is fixed to a bracket 23a fixed to a bracket 23 provided with pulleys 24 and 25 for supporting the seedling pressing conveyor belt 18. The pressing plate 26 in this embodiment is made by bending an elastic material into a U-shape and fixing two of them to a bracket 23a with a space therebetween, and connecting the free ends of the plates with a connecting plate 26a. The back surface of the belt 18 is provided in the longitudinal direction so that the vertical movement of the belt 18 can be absorbed.

As the holding plate 26, a U-shaped one having one opening as shown in FIG. 4 or a ring-shaped one having both ends connected as in the modification of FIG. 5 can be adopted. Also in the structure, it is arranged on both sides of the ridge portion 18A, and is configured to prevent lateral displacement of the seedling pressing conveyor belt 18 and disengagement from the pulleys 24, 25. Further, as another structure of the pressing plate 26, although not shown, a shoe having a U-shaped cross section so as to guide the protruding portions 18A to the lower surfaces on both sides of the pressing plate made of one elastic material. A member or a member provided with a small grooved roller can be used.

As described above, the ridges 18A are formed on the back surface of the seedling pressing conveyer belt 18 in the longitudinal direction thereof. The ridges 18A are formed along both sides of the ridges 18A like a warp. A book holding plate 26 is arranged, and this holding plate 26 presses and slides on the rear surface of the seedling holding conveying belt 18 due to its elasticity, so that the direction of the seedling holding conveying belt 18 is accurately regulated and the pulley 24 It is possible to prevent the belt 18 from slipping or coming off without fear of getting on the 25 or 25 or coming off.

Since the pressing plate 26 uses an elastic material such as a leaf spring material, it is possible to effectively press the seedling pressing belt 18 from the back surface according to the individual thickness H of the belt-shaped seedlings to be transferred. it can. The band-shaped seedlings can be transferred to the second transfer mechanism 30 while being crushed to a predetermined thickness.

[0018]

[Effect of the device]

 The seedling-holding conveyor belt of the transplanter of the present invention conveys the band-shaped seedlings along the upper surface of the seedling table and cuts them into a predetermined number by the cutting device provided at the lower end of the seedling table. In a transplanter configured to be planted in a field by a planting claw provided at the tip of the attachment rod, a seedling transport belt provided below the belt and a predetermined amount slightly narrower than the belt-like seedling thickness above this belt. The band-shaped seedlings are sandwiched laterally in the transport direction by the seedling-holding conveyor belt provided at a distance between the seedling-bearing conveyor belt and the seedling-holding conveyor belt. Pressing plates made of an elastic material are fixed on both sides of the ridges to brackets that support the seedling pressing conveyer belt.

Therefore, the belt-shaped seedlings can be conveyed while being properly pressed in the laid-down state without being displaced by the belt or detached from the belt pulley, so that the belt-shaped seedlings can be conveyed and planted favorably and smoothly. effective. Further, according to the present invention, since the transferred seedlings can be pressed and changed by the elastic force of the pressing plate according to the thickness thereof, it is possible to maintain a good transfer posture of the band-shaped seedlings.

[Brief description of drawings]

FIG. 1 is an overall side view of a transplanter according to an embodiment of the present invention.

FIG. 2 is an enlarged side view of the transplanter of FIG.

3 is a perspective view of the belt-shaped seedling transport mechanism of FIG. 2 as viewed from the back side.

FIG. 4 is an enlarged perspective view of an essential part showing a pressing plate arranged in the seedling pressing belt.

FIG. 5 is a side view of the holding plate of FIG. 4 according to another embodiment.

[Explanation of symbols]

2 Transplanting part 17 Seedling transfer belt 18 Seedling presser transfer belt 18A Protrusion 23 Bracket 24, 25 Pulley 26 Presser plate 23a Bracket.

Claims (1)

[Scope of utility model registration request] 1. A strip-shaped seedling is transported along an upper surface of a seedling placing table, cut into a predetermined number by a cutting device provided at a lower end portion of the seedling placing table, and provided at a tip of a planting rod. In a transplanter configured to be planted in a field by using a planting claw, a seedling conveyor belt provided below the belt and a seedling retainer provided above the belt with a predetermined distance slightly smaller than the thickness of the band-shaped seedling. The belt-shaped seedlings are sandwiched laterally in the conveying direction by the conveyor belt and conveyed.Furthermore, a ridge is provided in the longitudinal direction on the back surface of the seedling pressing conveyor belt, and elastic material is provided on both sides of the ridge. A seedling-holding conveyor belt device for a transplanter, in which the holding plate is fixed to a bracket that supports the seedling-holding conveyor belt.