JPH0568208U - Seedling conveyor belt for transplanter - Google Patents

Abstract

(57) [Summary] [Purpose] Distorting the position of the band-shaped seedlings by preventing the position of the band-shaped seedlings from slipping off from the tension roller due to the twisting of the belt when changing the posture of the band-shaped seedlings from the lying state to the standing position Provided is a device for feeding, cutting and planting in the absence of the presence. [Structure] Two belts 40, 41 are diverted to the vicinity of the transport start ends of the two seedling transport belts 40, 41 that transport the belt-shaped seedlings on the seedling mounting table 2a by changing the posture from the lying state to the standing state. Among the tension rollers 45, 46 with the brim 48 for imparting tension, the upper tension roller 45 is formed in a conical shape along the rising direction of the belt 40, and is attached from the opposite side to the rising side of the belt 41. Energizing the lower tension roller 46 from the direction opposite to the rising side of the belt 41, and urging the lower tension roller 46 from the rising side of the belt 41 to support the seedling table conveyor belt of the transplanter. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is mounted on a traveling machine, and transforms a band-shaped seedling from a fallen state to a standing state on a seedling mounting table and transports it. It is about the belt.

[0002]

[Prior Art]

 The inventor of the present invention has developed a belt-shaped seedling in which the roots of plant seedlings such as rush are pinched from both sides with paper adhesive tape and the tape portion is wound with a thread from the outside at the end of transportation of each strip. It proposes a transplanter that has a transplanting part that is cut into a predetermined number of plants at a planting part and then planted in a field scene with planting claws that perform a planting movement (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. The planting is carried out while riding and operating the traveling airframe while traveling in the field in the prescribed direction. A seedling box is supported on the seedling box support frame at the upper part of this transplanting section, and the first transport mechanism that holds the belt-shaped seedlings in the seedling box in a lying state and transports them downward for planting, and transports them downward. A second transport mechanism that transforms the strip-shaped seedlings into a standing shape and transfers them to the seedling feeding device side is provided. Furthermore, a planting guide is provided at the feeding end portion of the seedling feeding device to provide a planting rod. The planting nails are used to plant seedlings in the field, and in general, these transplanters are multi-row planting.

In the above-mentioned first transfer mechanism, a seedling transfer belt is provided in the lower part between the partition plates in which a plurality of strips are erected, and a predetermined gap corresponding to the thickness of the band-shaped seedlings transferred is held on the transfer surface of the belt. In addition, a seedling holding conveyor belt is provided, and the seedling holding conveyor belt can be vertically moved up and down with a drive shaft on the seedling carrying end side as a fulcrum. Next, in the second transfer mechanism described above, two pulleys that are parallel to each other vertically keep the strip-shaped seedlings in the lying state on the seedling-transporting start side, and change the strip-shaped seedlings to the standing state on the seedling-transporting end side. Two seedling carrier belts for belt-shaped seedling carrier are arranged by stretching endless belts between the two pulleys standing in parallel to the left and right sides.

Therefore, in the above-described second transport mechanism, the belt-shaped seedlings are deflected from the lying state to the standing state by 90 °, so that the belt-shaped seedlings of this seedling transport belt stand up and are transformed. In the vicinity of each pulley of the two seedling transport belts at the transport start end, one tension roller is provided for deflecting each belt and applying tension.

[0006]

[Problems to be solved by the invention]

 However, since the seedling transport belts that come into contact with these tension rollers are twisted around the contact points with the tension rollers as fulcrums, there is a problem in that the seedling transport belts are displaced or come off from the tension rollers. As a result, the belt-shaped seedlings in the lodging state are displaced to the standing state, and the position of the conveyed belt-shaped seedlings is displaced with respect to the seedling body direction. There is a risk that the posture of the plant will be disturbed and smooth feeding, cutting and planting will not be possible.

The present invention provides a transplanter capable of preventing the belt-shaped seedlings from being displaced from the tension rolls due to the twisting of the belt when the posture of the belt-shaped seedlings is changed from the lodging state to the standing state as described above. The purpose is to provide a seedling conveyor belt.

[0008]

[Means for Solving the Problems]

 The seedling conveyor belt of the transplanter according to the present invention for achieving the above object conveys a band-shaped seedling along the upper surface of the seedling placing table, and a cutting device provided at the lower end of the seedling placing table. In a transplanter configured to be cut into a predetermined number with and to be planted in the field by a planting claw provided at the tip of the planting rod, the striped seedlings are moved from the lying state to the standing state on the seedling mounting table. Of the tension rollers with flanges that turn each belt in the vicinity of the transport start end of the two seedling transport belts that are raised and transported, and the tension roller on the upper side, the upper one is the belt. The tension roller on the lower side is configured to have a conical shape along the rising direction of the belt while being biased from the direction opposite to the rising side of the belt.

[0009]

[Work]

 The seedling conveyor belt is turned 90 ° from the horizontal state to the vertical state. At this time, by providing a pair of upper and lower tension rollers on the starting side of the conveyance, the upper belt receives reaction force from the rising side of the belt by urging the tension roller from the opposite direction and The belt on the side can receive the reaction force acting from the opposite side, and there is no displacement of the band-shaped seedlings sandwiched by the two seedling transport belts, and the seedling transport belt is held by the collar of the tension roller and disengaged. There is no.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the 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. 1, and FIG. 2 is a perspective view of the belt-shaped seedling transport mechanism seen from the back side, and FIG. 4 is a perspective view of an essential part of the transport end portion of the second transport mechanism of FIG.

First, FIGS. 1 and 2 show the entire structure of a transplanter, in which 1 is a traveling machine body having a drive wheel and a steering wheel, and a transplanting section 2 for multi-row planting is lifted up and down at the rear part thereof. It is mounted so that it can be moved up and down by the link 1a, and at the front part of the traveling body 1, a spare seedling support frame 5 that supports a seedling box 4 that stores the belt-shaped seedlings in a zigzag shape is equipped. At the center, as shown in each drawing, a driver's seat 6 facing the traveling direction F of the machine body is provided.

In addition, the first transfer mechanism 10 for holding the strip-shaped seedlings of the seedling box 4 supported by the seedling-box supporting frame 9 of the transplanting section 2 in a lying state and transporting them downward, and the strip-shaped seedlings transported from there A second transfer mechanism 30 that transforms into a standing shape and transfers the seedlings to the seedling feeding device 11 is provided along each seedling placing table 2a for each row. An attached guide 13 is provided, and seedlings are planted in a field by a planting claw 16 at the tip of a planting rod 15 which is rotatably supported by a drive case 14.

Details of the transplantation part of the present invention have already been proposed in Japanese Patent Application No. 3-180340, Japanese Patent Application No. 3-56 680, Japanese Patent Application No. 3-69034, etc. Structures and explanations of parts not described in the above shall refer to the specification and drawings of these applications. On the other hand, as shown in FIG. 3, in the first transfer mechanism 10, seedling transfer belts 17 as endless belts are provided in the lower part between the partition plates 12, and the seedling transfer belts 17 are provided to the upper part of the belt-shaped seedlings. It is provided so that the seedling pressing conveyor belt 18 can be held and moved in the same direction in synchronization, and the seedling pressing conveyor belt 18 can be undulated up and down as shown by the arrow X in the figure with the drive shaft 19 as the fulcrum. The belt-shaped seedlings are easily sandwiched between the belts 17 and 18.

Next, as shown in FIG. 3, the second transport mechanism 30 holds the band-shaped seedlings at a predetermined gap, that is, while maintaining the thickness of the band-shaped seedlings at the seedling-transporting start end side, and brings them into the lying state. Between the two vertical pulleys 31 and 32 that are held vertically and the two pulleys 33 and 34 that are erected in parallel on the left and right sides of the seedling transfer end side of FIG. Two seedling conveyor belts 40 and 41, each of which is an endless belt, are arranged in the.

[0015] Fig. 5 shows the transport start end portion of the seedling transport belts 40, 41, and Fig. 4 shows the transport end portion, respectively. The belt-shaped seedlings of these two seedling transport belts 40, 41 are erected from a horizontal position. The belt clamping surface is twisted to change the figure to 90 °. Further, a pair of left and right tension rollers 42, 43 are respectively provided in order to keep the belt holding surface in a tensioned state at the end of the conveyance.

On the other hand, as shown in FIG. 5, the seedling conveying belts 40 and 41 are provided near the conveying start end portions thereof while the seedling conveying belts 40 and 41 are twisted from the horizontal direction to the vertical direction while holding the belt holding surface. Two tension rollers 45 and 46 for applying tension to keep the seedlings always in tension are provided above and below the seedling carrier belts 40 and 41 along the seedling placing table 2a, respectively.

Of the upper and lower tension rollers 45, 46, the upper tension roller 45 is urged as shown by an arrow f from the rising side of the belt 40, that is, the direction opposite to the left side in the figure. The belt 40 is fully tensioned, the washer 50 is inserted, and the pin 51 is fixed to the roller shaft 52. Also, the lower tension roller 46 is urged from the rising side of the belt 41, that is, from the left side in the figure as indicated by the arrow g, so that the belt 41 is fully tensioned and the washer 50 is inserted by the upper pin 51. It is fixed to the roller shaft 52.

In this embodiment, the body of the upper tension roller 45 has a conical shape along the twist of the belt 40 so as not to hinder the twist of the belt 40. In addition, both tension rollers 45, 46 are provided with a flange 48, which prevents the belts 40, 41 from coming off due to the reaction force due to the twisting for changing the direction of the seedling conveying belts 40, 41, and at the same time, for each tension roller. By fixing the rollers 45 and 46 by urging them in the directions of the arrows f and g, respectively, the above reaction forces are received.

Further, in the present invention, since each tension roller is provided with the flange portion, there is an advantage that the belt is not detached from the tension roller. In FIG. 5, 53 is a tight roller, which is rotatably supported by a tight shaft 54 located on the back surface of the seedling carrying belt 41 and biases the back surface of the seedling carrying belt 41 to the arrow h side. The belt-shaped seedlings are sandwiched between the belts 40 and 41 to be conveyed. Since a pressing force is applied to the tension roller 46 as shown by an arrow g to prevent the seedling conveying belt 41 from being displaced, the seedling conveying belt 41 on the tight roller 53 is placed on the roller 53. Can be moved along its axis.

[0020]

[Effect of the device]

 The seedling conveyor belt of the transplanter of the present invention conveys the band-shaped seedlings along the upper surface of the seedling mounting table, cuts it into a predetermined number by the cutting device provided at the lower end of the seedling mounting table, and transplants it. In a transplanter configured to be planted in a field by a planting claw provided at the tip of a rod, two seedlings are transported on the above-mentioned seedling mounting table by changing their postures from a lying state to a standing state and changing their postures. Of the tension rollers with flanges that turn each belt in the vicinity of the transport start end and apply tension to each belt, the upper tension roller is formed in a conical shape along the rising direction of the belt. Along with this, the belt is biased from the direction opposite to the rising side of the belt, and the lower tension roller is biased from the rising side of the belt to be supported.

Therefore, when the belt is deflected by the tension roller in order to change the posture of the belt-shaped seedling from the lodging state to the standing state, the reaction force acting on the belt is prevented without hindering the twisting of the belt. The belt-shaped seedlings can be received by the tension roller, the belt-shaped seedlings are securely sandwiched by the two belts that are always in tension, and the transformed belt-shaped seedlings are not displaced during the transformation process. The posture can be smoothly conveyed in a normal state. As a result, there is an effect that a series of operations of feeding, cutting and planting seedlings in the subsequent process can be smoothly performed.

[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.

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

FIG. 4 is a perspective view showing a main part of a transport end portion of the second transport mechanism of FIG.

5 is a front sectional view of a main part in the direction AA of FIG.

[Explanation of symbols]

40, 41 Seedling transport belt 45, 46 Tension roller 48 Collar part 50 Washer 51 Pin

Claims (1)

[Scope of utility model registration request] 1. A strip-shaped seedling is transported along an upper surface of a seedling mounting table, cut into a predetermined number by a cutting device provided at a lower end portion of the seedling mounting table, and provided at a tip of a planting rod. In a transplanter configured to be planted in a field by using the above-mentioned planting claws, transport start end portions of two seedling transport belts for transporting the belt-shaped seedlings on the seedling mounting table while changing their posture from a fallen state to a standing state Of each tension roller with a collar that deflects each belt in the vicinity of and also applies tension to each belt, urges the upper tension roller from the direction opposite to the rising side of the belt and lowers the lower tension roller. A seedling conveying belt for a transplanter, which is configured in a conical shape along the rising direction of the belt and is biased and supported from the rising side of the belt.