JPH0442978Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a multi-film perforation device for a seedling transplanter. Specifically, when the perforation device descends to open a seedling planting hole in the multi-film, This invention relates to a multi-film perforation device for a seedling transplanter, which can prevent the perforation device from being damaged by moving upward and climbing over the obstacle even if there is an obstacle such as a stone in the soil.

2. Description of the Related Art In general, a seedling transplanting machine is known that includes a planter section that rotates in conjunction with the travel of the machine body, and that plants seedlings held in the planter part into ridges as the machine body travels. For example, when planting seedlings in a ridge covered with a mulch film, such as early cultivation of sweet potatoes, planting holes must be opened at predetermined positions in the mulch film in advance. For this reason, conventionally,
A cutting device that moves up and down is installed, and the mulch sheet is cut by the cutting device that is lowered in response to the planting operation of the planter section.At this time, if there are obstacles such as stones in the soil, the lowered cutting device will cut the mulch sheet. There were inconveniences such as the cutting device being damaged due to excessive force being applied when the device came into contact with an obstacle.

Problems to be Solved by the Present Invention The present invention was devised in view of the above-mentioned actual situation and to eliminate the drawbacks of the conventional technology. Even though a planting hole is opened at a predetermined position corresponding to planting in the planter section, even if there is an obstacle such as a stone in the soil, the drilling device moves upward and clears the obstacle. It is an object of the present invention to provide a multi-film perforation device for a seedling transplanter that can reliably prevent the device from being damaged.

Means for Solving the Problems In order to solve the above problems, the technical means adopted by the present invention includes a planter part that is linked to the movement of the machine, and the seedlings held in the planter part are transferred to a multi-film film. In a seedling transplanter for planting on a ridge from a drilled hole, a vertically movable multi-film perforating device provided in front of the planter part is biased and supported in a downward direction via a bullet. , a driving body is provided on the lower moving side of the drilling device, and the driving body is provided on the lower moving side of the drilling device and guides the drilling device to a lower operating position and an upper moving position; It is characterized by being configured so that it can be separated from the driving body against the bias of the machine.

Effects of the invention Next, the effects of the invention configured as described above will be explained. Now, when planting seedlings on a ridge covered with mulch film, if you hold the seedlings in the planter section while moving the machine along the ridge, the mulch installed in front of the planter section can move up and down. The film perforation device is guided by the drive body and moves up and down between the operating position and the non-operating position and perforates the multi-film, so the seedlings held in the planter section are linked to the movement of the machine and the perforations are made. It can be planted in rows. Even if there is an obstacle such as a stone in the soil, when the drilling device that has been lowered to the operating position comes into contact with the obstacle, the drilling device that is biased in the downward movement direction will be forced by the reaction force of the obstacle. moves upward against the bias by
Obstacles can be overcome without any damage to the drilling device, and seedlings can be planted smoothly.

Embodiment The embodiment of the present invention will be explained in detail based on the attached drawings of a sweet potato seedling transplanting machine. 1 is a body frame equipped with front wheels 2 and rear wheels 3, and an engine 4 mounted at the rear; Frame 1 has front wheels 2 and rear wheels 3.
A planter 5 is mounted so as to be vertically movable via a link mechanism 6. Planta 5
is connected via a chain 7 to a transmission mechanism that transmits the power of the engine 4 to the rear wheels 3, and rotates in the same direction as the rear wheels 3 in conjunction with the travel of the aircraft. Then, when the planter 5 rotates downward, the seedlings a held on the seedling holding surface 5a of the planter 5 are planted into the soil through the holes formed in the mulch film 8 covering the ridges.

Reference numeral 9 denotes a punching device for the multi-film 8, in which a cutter head 10 consisting of a heating element is attached to the tip of a cutter arm 12 which is pivotally supported on a fulcrum 11 and can freely swing up and down. A roller 12a that abuts from below is attached to a cam-shaped driving body 14 that is fixedly attached to the rotating shaft 13 of the planter 5. Further, behind the fulcrum 11 of the cutter arm 12, a tensioning machine 15 is installed between the cutter arm 12 and the machine body to constantly urge the cutter head 10 in a downward direction, and the roller 12a moves the cutter head 10 downward. It presses into contact with the cam surface 14a of the driver 14 from the side. The cam surface 14a is formed in a shape corresponding to the planting operation of the planter 5, and the cam surface 14a is formed in a shape that corresponds to the planting operation of the planter 5.
The cutter head 10 attached to the tip of the cutter arm 12 guided by the cutter arm 12 has two positions: an operating position in which it moves downward to open a hole into which a seedling is planted when the planter 5 rotates downward, and an inoperative position in which it moves upward. It moves up and down. Even if the cutter head 10 in the lower operating position comes into contact with an obstacle 16 such as a stone and an unreasonable force is applied, the cutter arm 12 resists the bias of the tension bomb 15 and moves away from the driver 14. The cutter head 10 can overcome an obstacle 16 while moving upward.

A brush 17 faces the front of the cutter head 10 and is attached to the cutter cover 19 via a leaf spring 18. The brush 17 is supported in a pressing manner toward the cutter head 10, and when the multi-film 8 is perforated, the brush 17 is attached to the cutter cover 19 via a leaf spring 18. Film residue, sand, etc. adhering to the cutter head 10 can be removed along the upward movement path of the cutter head 10.
20 is a sensor that detects the height of the ridge, 20a is a sensor roller, 21 is an actuator that moves the planter 5 up and down, 22 is a driver's seat, and 23 is a pressure roller. FIG. 6 shows another embodiment of the brush, in which a pair of brushes 17', 17' contacting the cutter head 10 from both sides are attached to a cutter cover 19 via a leaf spring 18'. .

In this embodiment, the fulcrum 11 of the cutter arm 12
Although a tension bomb 15 is shown stretched behind the cutter head 10, the present invention is not limited to this, and a compression bullet may be provided in front of the fulcrum 11. In short, the cutter head 10 is moved downward in the direction of the cutter head 10. It is good if it can hold a biased bullet. Further, the drive body 14 may be a plunger type solenoid device or the like that presses the cutter arm 12, and the cutter head 10 may of course be equipped with a cutting blade or the like instead of a heating element. .

In the above configuration, when transplanting seedlings to the ridge covered with multi-film, if the machine is run across the ridge, the planter 5 will rotate in the direction of arrow A in conjunction with the running of the machine. The cutter arm 12 swings guided by the cam surface 14a of the drive body 14 fixed to the rotating shaft 13, and the cutter head 10, which is a heat generating element attached to the tip of the cutter arm 12, moves up and down to plant the planter 5. Since the multi-film 8 can be fused and the perforated hole opened at a position corresponding to the attaching operation, the seedling a held in the planter 5 can be removed from the perforated hole through the perforated hole when the planter 5 rotates downward. can be planted in

Even if there is an obstacle 16 such as a stone in the soil and the cutter head 10 comes into contact with it and an unreasonable force is applied, the cutter arm 12 is attached in the direction in which the cutter head 10 moves downward via the tension bomb 15. Since the bullet is held in force, it can move upward away from the drive body 14 against the bias of the tension bomb 15.
Since the obstacle 16 can be easily overcome, the cutter head 10 will not be damaged. Also, when the cutter head 10 moves downward and perforates the multi-film 8, even if film scum, sand, etc. adhere, the leaf spring 18
Since it can be automatically removed by the brush 17 that is supported in a pressing manner through the hole, the hole can always be opened in an accurate shape, and the seedling transplantation work can be carried out smoothly. Further, according to another embodiment shown in FIG. 6, film residue and the like can be removed more reliably.

Effects of the Invention In short, the present invention provides a seedling transplanter which is equipped with a planter section that is linked to the movement of the machine body, and in which the seedlings held in the planter section are planted onto the ridges through holes in the multi-film. A vertically movable multi-film perforation device provided in front of the planter section is biased and supported in the downward movement direction via a bullet, and the operating position is moved downwardly by contacting the perforation device and moved upwardly. The driving body is guided to the non-operating position.
The perforating device is installed on the lower moving side of the perforating device, and the above-mentioned perforating device is configured so that it can be separated from the driving body on the upper moving side against the bias of the bullet. Even if there is an obstacle such as a stone in the soil, the drilling device, which is biased and supported in the downward direction, will move downward when it comes into contact with the obstacle. It is extremely useful because it moves upward away from the cam body that guides it and can overcome obstacles, ensuring that the perforation device is not damaged and allows for smooth seedling transplantation work. It has many practical effects.

[Brief explanation of drawings]

The drawings show an embodiment of the multi-film cutting device in the seedling transplanter according to the present invention, in which Fig. 1 is a side view of the main parts, Fig. 2 is an overall side view of the sweet potato seedling transplanter, and Fig. 3 is a side view of the main part. , and FIG. 4 is an action explanatory diagram,
5A and 5B are a partially enlarged side view and a plan view, and FIGS. 6A and 6B are a partially enlarged side view and a plan view showing another embodiment. In the figure, 5...Planter, 9...Multi-film punching device, 14...Driver, 15...Tension bullet machine.

Claims (1)

[Scope of utility model registration request] A seedling transplanter is provided with a planter section that is linked to the movement of the machine, and the seedlings held in the planter section are planted onto the ridges through holes in a multi-layer film. A drive that biases and supports a movable multi-film perforation device in a downward movement direction via a bullet, and guides the perforation device to an operating position in which it moves downward and a non-operation position in which it moves upward by contacting the perforation device. A mulch in a seedling transplanter, characterized in that a body is provided on the lower moving side of the perforating device, and the perforating device is configured to be able to be separated from the driving body on the upper moving side against the bias of a bullet. Film punching device.