JPH106U - Seedling platform in transplanter - Google Patents

Abstract

(57) [Summary] [Purpose] To ensure continuous vertical feeding while removing gaps between mat seedlings placed on the upper and lower tiers of the seedling mounting table, and to efficiently carry out transplantation work without any stock loss. [Constitution] A transplanting machine 1 places a mat seedling W on a seedling mounting table 2 which is provided to be inclined in the front-rear direction of the machine, performs vertical feeding, and reciprocates in a left-right direction to plant a plant located below. Nail 4
The seedlings are scraped and planted. The seedling mounting table 2 has a steeply inclined lower seedling mounting surface 2a having a vertical feeding device 7 facing a planting portion, and a gentle inclined upper seedling mounting surface 2b provided with an auxiliary vertical feeding device 8 connected thereto. And the distance L between the vertical feeding device 7 and the auxiliary vertical feeding device 8 is set to be longer than the length H of the mat seedling W.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a seedling mounting table in a transplanting machine that includes a seedling mounting table having a lower seedling mounting surface having a vertical feeding device and an upper seedling mounting surface having an auxiliary vertical feeding device.

[0002]

[Prior art]

 Conventionally, mat seedlings are placed, tilted in the front-back direction of the machine, and the seedling mounting table of the transplanter that scrapes and seeds the seedlings one plant at a time at the planting section located below is mounted on the planting section. An endless belt-shaped vertical feeding device with protrusions is configured on the lower seedling mounting surface that faces.When the seedling mounting table is reciprocated in the horizontal direction and moves to the left and right side end parts, a predetermined amount of mat seedlings is moved by the vertical feeding device. They are fed vertically one by one. Further, the seedling mounting table has a length in which one or two mat seedlings can be placed in the front-rear direction, and is formed so that mat seedlings can be lined up in a lateral direction so that an appropriate number of plants can be planted. In order to save the supply of seedlings, a so-called long seedling mounting table is used, in which the seedling mounting surface is extended to extend the length of the seedling mounting, and two or more mat seedlings are usually mounted.

[0003]

[Problems to be solved by the invention]

 However, the upper seedling mounting surface should be lower than the lower seedling mounting surface in order to reduce the total height of the long seedling mounting table and to prevent the weight of the upper matting seedling from being added to the lower matting seedling. It is necessary to provide an auxiliary vertical feeding device that forcibly feeds the seedlings vertically on the upper seedling mounting surface because it is formed with a gentle slope. If the distance between the auxiliary vertical feeding device and the start end of the vertical feeding device provided on the steeply inclined surface is smaller than the length of the mat seedling, even if the vertical feeding of both is synchronized and the same feeding amount is obtained. Depending on the type of bed soil of the mat seedlings, the seeding amount, the condition of the rooting, etc., and the difference in the slope shape of the seedling table, etc., the mat seedlings placed vertically on the seedling table are connected vertically. As the paper is transported, there is a problem in that a difference in the amount of transportation occurs and a gap is formed between the front and rear of both mat seedlings, resulting in lack of stock and poor planting accuracy.

[0004] For this reason, if the vertical feed amount of the auxiliary vertical feed device is increased to prevent the above-mentioned gap from being generated, the front end of the upper mat seedling is pressed against the rear end of the lower mat seedling, and the mat seedling is removed. There is a problem that the middle part is bent upward and buckling occurs. In view of the above circumstances, the present invention accurately and continuously feeds a long seedling mounting platform that can solve the conventional problems without causing gaps or buckling between adjacent mat seedlings. This aims to provide a seedling platform for a transplanting machine that can efficiently feed a variety of mat seedlings in a well-adapted state in a good condition and can perform an efficient transplanting operation.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the seedling mounting table of the transplanter according to the present invention is arranged such that a mat seedling is placed on a seedling mounting table which is provided to be inclined in the front-rear direction, and is vertically fed, and is reciprocated in the left-right direction. In a transplanting machine which is configured to scrape and plant seedlings with a planting claw located below, a steeply inclined lower seedling mounting surface having a vertical feeding device for the seedling mounting table, and an auxiliary vertical feeding device connected thereto. The upper seedling mounting surface is provided with a gentle slope, and the vertical feeding device and the auxiliary vertical feeding device are spaced apart from each other by at least the length of one mat seedling.

[0006]

[Action]

 With the above configuration, the upper and lower mat seedlings W connected and placed on the upper seedling mounting surface 2b and the lower seedling mounting surface 2a are vertically fed by the respective vertical feeding devices 7 and the auxiliary vertical feeding device 8. Is done. The gap created between both mat seedlings W, W in the middle of the vertical feeding is such that when the upper mat seedling W is fed vertically and its end comes off the auxiliary vertical feeding device 8, there is no forced vertical feeding device. The problem is solved by quickly sliding down the steep slope of the seedling mounting surface interval (free sliding surface) L, and closely joining the front end thereof to the end surface of the mat seedling W being vertically fed on the vertical feeding device 7. Can be. Accordingly, the upper mat seedling W is connected to the lower mat seedling W without any gap, and the vertical feeding by the vertical feeding device 7 is continuously and smoothly performed. It works to do it properly.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. A is a riding-type transplanter, and a planting device 3 having a seedling table 2 according to the embodiment of the present invention, which is inclined rearward and downward at a rear portion of an airframe 1 having running wheels 1a and a driver's seat 1b. Is provided so as to be able to ascend and descend through an elevating link mechanism 1c, and is input to a transmission case 3a of the planting device 3 by a transmission shaft 1d to operate the planting claw 4 and reciprocate the seedling mounting table 2 in the lateral direction. It is configured as follows. The seedling mounting table 2 is mounted on an apron 6 fixed to the transmission case 3a via an apron guide 5 inserted at the tip of the seedling mounting table 2 so as to be slidable in the lateral direction and at the rear. A slide piece 5a is provided in the section and is slidably supported by a slide guide 6a fixed to the machine frame 3b.

[0008] Reference numeral 7 denotes a vertical feeding device having a steeply formed lower seedling mounting surface 2a and a transport surface exposed at an opening 2c cut out of the lower seedling mounting surface 2a. The vertical feeding device 7 is pivotally mounted on the back surface of the lower seedling mounting surface 2a. An endless belt (vertical feeder) 7 with a projection is stretched between the drive roller 7a and the floating roller 7b, and a drive shaft 7c for fixing the drive roller 7a is reciprocated in the horizontal direction of the seedling table 2. At each moving end, a well-known configuration is used to feed vertically one stock at a time. Reference numeral 8 denotes an auxiliary vertical feeding device, which is connected to the lower seedling mounting surface 2a and protrudes from an opening 2c formed in the upper seedling mounting surface 2b which is formed to be gently inclined forward and is mounted on this portion. Mat seedling W is fed vertically. The auxiliary vertical feeding device 8 fixes a roller (auxiliary vertical feeding device) 8 with a protrusion formed of plastic as shown in FIG. 4 to a rotating shaft 8a pivotally supported on the back surface of the upper seedling mounting surface 2b. A transmission belt 9 stretched and guided by a guide roller 9a is stretched between the rotating shaft 8a and the driving shaft 7c, and is configured to rotate synchronously with the vertical feeding device 7 at the same speed.

The above-mentioned seedling mounting table 2 has a front and rear end having a total length of about two and a half mats as a seedling mounting surface on which mat seedlings are mounted. The gap L between the auxiliary vertical feeding device 8 and the auxiliary vertical feeding device 8 is provided to be wider than the length H in the feeding direction of one mat seedling. As shown in FIG. 3, the vertical feeding device 7 and the auxiliary vertical feeding device 8 are mounted on the single-row seedling table 2 divided by the partition walls 2d and 2d. Two pairs are arranged side by side to make up all sections. Further, the auxiliary vertical feeding device 8 is provided with a one-way rotation mechanism with respect to the rotation shaft 8a. That is, the hollow roller (auxiliary vertical feeding device) 8 is provided with a hub 10 having a hole and is loosely fitted on the rotary shaft 8a, and is directed to the inner peripheral wall of the roller 8 with the step portion 11a and the arrow in the vertical feeding direction. A plurality of projections 11 having inclined surfaces 11b are formed continuously, and a spring piece 12 having a bent end is provided so as to engage with a step 11a of the projection 11, and an attachment length formed at the base of the spring piece 12 is formed. The hole 12a is fixed to the rotary shaft 8a by a bolt 13 so that the mounting position is variable and the spring pressure is adjustable.

In the planting apparatus 3 configured as described above, two mat seedlings W, W are placed on the seedling mounting table 2, the planting claws 4 are operated as the machine body 1 advances, and the seedling mounting table 2 is moved. From the front end of the mat seedling W that has been laterally fed and placed on the lower seedling mounting surface 2a, seedlings for one plant are sequentially scraped and planted in the field with the planting claws 4. At this time, the drive shaft 7c of the vertical feeding device 7 is forcibly rotated when the seedling mounting table 2 reaches the horizontal feeding end portion, so that the lower mat seedling W placed on the vertical feeding device 7 is moved to one position. An auxiliary vertical feeding device 8 that performs vertical feeding only for the stock and is transmitted from the drive shaft 7c by a transmission belt 9 similarly performs vertical feeding of the upper mat seedling W placed on the upper seedling mounting surface 2b. . At this time, the upper stage mat seedling W has a difference in longitudinal feed drag depending on the fact that it is placed on the upper seedling mounting surface 2b that is curved at a gentle inclination, and the type of floor soil, the seeding amount, the state of rooting, and the like. Therefore, a slight slippage occurs between the mat seedling W and the auxiliary vertical feeding device 8 to cause a delay in the vertical feeding. Therefore, as the vehicle approaches the vertical feeding device 7 during the vertical feeding, the lower mat seedling W There may be a gap between the end and the upper end of the mat seedling W. Such gaps are also caused by improper replenishment of the upper mat seedlings.

In such a case, according to the present invention, when the end of the upper mat seedling W is vertically fed and disengaged from the auxiliary vertical feeding device 8, the seedling mounting surface interval (free sliding) where the forced vertical feeding device does not exist is provided. The steep slope of the falling surface L is freely slid downward, and its front end is tightly joined to the terminal surface of the lower mat seedling W being vertically fed on the vertical feeding device 7. Accordingly, the upper mat seedling W is connected to the lower mat seedling W without any gap when the end of the lower mat seedling W is in the vicinity of the end portion of the vertical feeding device 7, and continues to the lower mat seedling W vertically. Longitudinal feeding by the feeding device 7 is continuously and conveniently performed, and a good transplanting operation without lack of stock or poor planting can be accurately performed. Also, when the upper mat seedling W is fed vertically and there is a space for one mat seedling W to be placed in front of the upper seedling mounting surface 2b, the next new mat seedling W is quickly moved. The seedlings can be efficiently replenished by replenishing crabs.

The above-mentioned new mat seedlings W are supplied by pushing the mat seedlings W on the upper seedling mounting surface 2b extending forward at a gentle inclination and pushing in the direction of the arrow in FIG. At this time, the auxiliary vertical feeding device 8 rotates freely in the direction of the arrow while engaging with the protrusion of the mat seedling W by the one-way rotation mechanism, and the auxiliary vertical feeding device 8 supplies the mat seedling W. It is performed smoothly and efficiently without any hindrance. In addition, the auxiliary vertical feeding device 8 configured as described above can adjust the pressing force against the protrusion 11 by loosening the bolt 13 and adjusting the amount of protrusion of the spring piece 12, so that the braking force adapted to the situation of the mat seedling W can be reduced. Can be provided, and buckling or the like does not occur when the mat seedlings W are supplied.

[0013]

[Effect of the invention]

 Since the present invention is configured as described above, the mat seedlings placed on the gentle seedling upper seedling mounting surface are vertically fed by the auxiliary vertical feeding device, and when the terminal ends come off from the auxiliary vertical feeding device, By providing a gap between the vertical feeding device and the auxiliary vertical feeding device that is longer than the length of the mat seedling, the slid quickly on the seedling mounting surface where there is no forced feeding device, and the vertical feeding device is feeding vertically. It is connected tightly to the end surface of the mat seedling of the mat, and is connected in a state where there is no gap between the upper and lower mat seedlings. Good planting work without stocks or planting failures can be performed properly.

[Brief description of the drawings]

FIG. 1 is a side view of a transplanting apparatus equipped with a seedling mounting according to an embodiment of the present invention.

FIG. 2 is a side view of the transplantation device showing the seedling mounting table partially broken away.

FIG. 3 is a plan view of a seedling mounting table.

FIG. 4 is a cross-sectional view of a roller (auxiliary vertical feeding device).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transplanter 2 Seedling stand 2a Lower seedling mounting surface 2b Upper seedling mounting surface 3 Planting device 4 Planting claw 7 Vertical feeder (belt) 8 Auxiliary vertical feeder (roller) W Mat seedling

Claims (1)

[Utility model registration claims] 1. A mat seedling is placed on a seedling mounting table which is provided to be inclined in the front-rear direction to make a vertical feed, and is reciprocated in the left-right direction to scrape and plant the seedling with a planting claw located below. In the transplanting machine, the seedling mounting table is composed of a steeply inclined lower seedling mounting surface having a vertical feeding device and a gentle inclined upper seedling mounting surface provided with an auxiliary vertical feeding device connected thereto. A seedling table in the transplanting machine, wherein the vertical feeding device and the auxiliary vertical feeding device are spaced apart from each other by at least the length of one mat seedling.