JPH0626141Y2 - Earthmoving machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to, for example, a soil-filling machine of a seeding device for continuously supplying floor soil, irrigating water, sowing, and covering soil, and particularly an optimal soil for floor soil supply. Regarding entry.

(Prior art) A soil-filling soil feeder has a nursery box transfer mechanism in a support frame that supports each mechanism of the seeding device, and a belt conveyor is arranged on this transfer mechanism to remove the soil falling from the hopper. While being fed by a belt conveyor, it is dropped and fed into the nursery box that passes below it.

A sensor is installed to detect the seedling raising box so that soil is not supplied when the seedling raising box is not loaded on the belt conveyor.The belt conveyor is driven by detecting the tip of the seedling raising box and the rear end is detected. Is configured to stop its driving.

By the way, the position to detect the tip of the nursery box requires time until the soil is dropped even if the belt conveyor is driven immediately after the detection. In order to detect the front and rear ends of the nursery box with a single switch, a long detection piece that moves up and down in contact with the nursery box is provided.

(Problems to be solved by the invention) In the above-mentioned conventional technique, although the front and rear ends of the nursery box can be detected by the long detection piece, it is difficult to expect the detection piece to operate vertically, and the tilting causes the detection accuracy of the switch. May be low. Further, if the resistance of the detection piece is large, the transfer of the empty nursery box may become unstable.

According to the present invention, a pair of front and rear sensing rods detect the front and rear ends of the nursery box to activate one switch, thereby enabling accurate and reliable detection of the nursery box. The purpose is to provide a machine.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a transfer mechanism 13 for transferring the seedling raising box 8 on the support frame 2 and a contact type for detecting the seedling raising box 8 from below. A sensor 34 is provided, and a soil supply mechanism 22 for supplying soil to the seedling raising box 8 detected by the sensor 34 is arranged above the transfer mechanism 13, and the soil feeding mechanism 22 is provided in front of the sensor 34 in the seedling raising box transfer direction A. In the earth-entering machine in which a pressing roller 43 that comes into contact with the upper surface of the side wall is rotatably arranged, the sensors 34 are separately arranged in the transfer direction of the seedling-growing box and abut on and swing when the front end of the seedling-growing box 8 passes. Sensing rod 37
The second sensing rod 37F that swings when the contact is released by the passage of the rear end of the R and the nursery box 8, the interlocking member 39 that interlocks the two sensing rods 37R and 37F, and the swinging of the sensing rods 37R and 37F activates or And a switch 41 for releasing the operation.

(Operation) When the seedling raising box 8 is placed on the roller 15 of the transfer mechanism 13 and carried into the soil filling machine 3, the seedling raising box 8 is pressed by the pressing roller 43 before contacting the sensing rod 37 of the sensor 34. It is pressed to the side of roller 15. The pressing roller 43 is rotationally driven in the transfer direction A by the power from the transfer mechanism 13, and transfers the holding box 8 together with the transfer mechanism 13 while holding it. This nursery box 8 is a sensing rod 37R
Even if it comes into contact with, it overcomes the contact resistance and is transferred normally. When the sensing rod 37R rotates to operate the switch 41, the sensor 34 operates the motor 26 of the soil supply mechanism 22 to start the soil drop supply. The soil collides with the reflector 31 while falling,
Large grains enter the seedling raising box 8 before small grains, and small grains are deposited thereon. When the rear end of the nursery box 8 passes over the sensing rod 37F, both the sensing rods 37F and 37R swing upward, the switch 41 is deactivated, the motor 26 is stopped, and the soil supply is stopped.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 3, the seedling raising seeding device 1 has a bed soil feeder 3, a soil leveling machine 4, a watering machine 5, a seeder 6 and a soil covering feeder 7 arranged in a row on a support frame 2. The transfer mechanism provided on the support frame 2 transfers the seedling raising box 8 while placing it on the support frame 2 so that work can be continuously performed from the supply of floor soil to the supply of cover soil.

Foldable auxiliary stands 9 and 10 are provided in front of and behind the support frame 2, and a transfer mechanism is also extended to these. The transfer mechanism may have the same speed over the entire length, but the transfer speed of the nursery boxes may be different for each work. In that case, for example, when the cover soil supply work speed is 1, the floor soil supply work speed is 0.
9, seeding work speed 0.95, front and rear auxiliary table transfer speed 1.
2. Set the speed ratio of irrigation work to approximately the same speed as the soil supply or seeding work.

Referring to FIGS. 1 and 2, a pair of channel members 12 having a U-shaped cross section are arranged to face each other in a supporting frame 2, and a transfer mechanism 13 supports a rotating shaft 14 at a longitudinal interval between the pair of channel members 12. Then, each rotating shaft 14 is provided with a roller 15 for mounting the seedling raising box 8, a sprocket 16 is provided at the shaft end, and power from a motor 17 mounted on the channel material 12 is fully rotated through a transmission means 18 and a chain. It can be transmitted to the shaft 14.

The floor soil feeder 3 that uses the soil feeder to supply the floor soil is the support frame 2
A hopper 21 and a soil supply mechanism 22 are supported by a frame 20 fixed above. The soil supply mechanism 22 includes a pair of front and rear rollers 23, 24.
A belt 25 is wound around the roller 25, one motor 23 can be driven by a motor 26, and the other roller 24 can be positionally adjusted by a tension adjusting means 27. A gate member 28 is provided at the front part of the hopper 21, and the height of the gate member 28 with respect to the belt 25, that is, the gate interval can be adjusted by the elevating means 29.

31 is a reflecting plate arranged in the lower front of the soil supply mechanism 22,
The soil supplied from the belt 25 is arranged at a position where it can collide. The left and right side walls 32 of the reflector 31 are detachably attached to the frame 20 with bolts 33, and the reflector 31
The angle of is adjustable.

A sensor 34 for detecting a nursery box is arranged below the soil supply mechanism 22. The sensor 34 has a pair of sensing rods 37 and an interlocking arm 38 fixed to two shafts 35F and 35R rotatably installed between the left and right channel members 12, respectively, and front and rear shafts 35F and 35R.
The interlocking arm 38 of is connected by a rod 39, and an operating arm 40 is provided at one end of the rear shaft 35R.
The channel material 12 is provided with a switch 41 such as a limit switch which is turned on and off. That is, the sensors 34 are separately arranged in the transfer direction of the nursery box, and abut on the rear sensing rod (first sensing rod) 37R that abuts and swings when the front end of the nursery box 8 and the rear end of the nursery box 8 contact. Front sensing rod (second sensing rod) 37F that swings when released, and both sensing rods 37R and 37F
Rod (interlocking member) 39 that interlocks and connects the sensing rods 37R, 3
And a switch 41 that is activated or deactivated by swinging 7F.

When the nursery box 8 on the transfer mechanism 13 is transferred from the right side in FIG. 1 to the left direction, when the rear sensing rod 37R on the front side in the transfer direction A comes into contact with the nursery box 8 and swings, the switch 41 is turned on. Then, the motor 26 is operated, the belt 25 is moved, and the soil falls when the front end of the seedling raising box 8 reaches the front sensing rod 37F. The switch 41 is not turned off even when the rear end of the nursery box 8 passes over the rear sensing rod 37R, and is turned off only after passing over the front sensing rod 37F to stop the motor 26. The soil supply shortage at the front and rear of the box 8 is prevented.

A pressing roller 43 is arranged between the transfer mechanism 13 and the soil supply mechanism 22 on the front side of the sensor 34 in the transfer direction A. A pair of left and right pressing rollers 43 are provided on the horizontal shaft 44 and can come into contact with the upper surfaces of the left and right side walls of the seedling raising box 8. The horizontal shaft 44 is pivotally supported by a pair of left and right support arms 45, and a sprocket 46 is fixed to one end thereof. Left and right support arm 45
Is swingably supported by the rotary shaft 14 of the transfer mechanism 13, an idler sprocket 47 is pivotally supported at one lower part, and a chain 48 is wound between the idler sprocket 47 and the sprocket 46. A drive sprocket 49 provided at the end of the rotary shaft 14 is engaged with the presser roller 43 by the power of the transfer mechanism 13 to rotate in the transfer direction A of the nursery box (rotate in the opposite direction of the rotation of the roller 15). Power transmission means 50 is configured.

The left and right support arms 45 can be arranged inside the frame 20, but here they are arranged outside.
A hole 51 through which the horizontal shaft 44 penetrates is formed in 20 and the horizontal shaft 44 can move up and down.

A bracket 52 is fixed to at least one end of the left and right support arms 45, and a bolt 53 is attached downward to the bracket 52.
Are screwed together. The bolt 53 abuts on the upper surface of the channel member 12 and serves as a stopper that adjustably sets the lower limit of the pressing roller 43.

Further, between the bracket 52 and the channel member 12,
An elastic member 54 for pulling the bracket 52 downward is provided. The elastic member 54 is formed of a spring and elastically presses the pressing roller 43 toward the nursery box 8 side, and the pressing roller 43 and the roller 15 elastically clamp the nursery box 8 therebetween.

The present invention is not limited to the above-mentioned embodiment and can be variously modified. For example, the hole 51 can be formed in an arc groove whose center of curvature is the swing center of the support arm 45.

(Effect of the Invention) According to the present invention described in detail above, the sensors 34 are separately arranged in the transfer direction of the nursery box, and the first sensing rod 37R and the nursery box 8 that abut and swing when the front end of the nursery box 8 passes. The second sensing rod 37F that swings by releasing the contact when the rear end passes and both sensing rods 37F
Since the interlocking member 39 for interlocking the R and 37F and the switch 41 for actuating or deactivating by swinging the sensing rods 37R, 37F are provided, the two sensing rods 37R, 37F are located at the front and rear end detection positions of the nursery box 8. Can be properly and individually arranged, and can be detected, accurately and reliably, and can be detected by one switch 41 even if the sensing rods 37R and 37F are separated in the front and rear, and the sensing rods 37R and 37F can be detected.
Since it is a rod, the contact resistance with the nursery box 8 can be reduced and the nursery box 8 can be pressed from above by the pressing roller 43, so that the transfer of an empty nursery box does not become unstable at the time of detection, and stable transfer is possible. Accurate detection is possible depending on the condition.

[Brief description of drawings]

FIGS. 1 and 2 show an embodiment of the present invention. FIG. 1 is a sectional front view, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is a front view of the whole seeding device. is there. 2 ... Support frame, 3 ... Floor soil feeder (earthing machine), 8 ... Nursery box,
13 ... Transfer mechanism, 15 ... Roller, 21 ... Hopper, 22 ... Soil supply mechanism, 34 ... Sensor, 37 ... Sensing rod, 41 ... Switch, 43 ... Press roller, 45 ... Support arm, 50 ... Power transmission means.

Claims (1)

[Scope of utility model registration request] 1. A transfer mechanism (13) for transferring a seedling raising box (8) while placing it on a support frame (2) and a contact type sensor (34) for detecting the seedling raising box (8) from below, Arranging a soil supply mechanism (22) for supplying soil to the nursery box (8) detected by the sensor (34) above the transfer mechanism (13), and the sensor (34) nursery box transfer direction (A) Pressing roller that comes into contact with the upper surface of the side wall of the nursery box (8) in front
A soiling machine in which (43) is rotatably arranged, wherein the sensor (34) is arranged separately in the transfer direction of the nursery box and abuts and oscillates when the front end of the nursery box (8) is passed. A second sensing rod (37F) that swings by releasing contact with the rod (37R) and the rear end of the nursery box (8) and an interlocking member (39) that interlocks and connects both sensing rods (37R) (37F). And a switch (41) which is activated or deactivated by swinging the sensing rods (37R) (37F).