JPH1189372A - Stationary onion harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stationary onion harvester capable of automatically transferring prescribed amounts of onions with stem and leaf to a tapping apparatus without causing the damage of the onion. SOLUTION: The top of a group of onions 100 with stems and leaves guided by a slope and collected on a chute 3 at a prescribed amount is detected and the feeding action is stopped upon detection of the top by stopping the action of the transfer conveyor 2. When the amount of onions is decreased below a prescribed level, the operation of the conveyor is restarted to supply the onions 100 with stems and leaves to the chute 3. The optimum amount of onions 100 with stems and leaves are constantly retained on the chute 3 by this process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stationary onion harvester, which is driven by a self-propelled vehicle such as a tractor to a field, transferred to a tapping device provided with onions with foliage fed from an onion picker or the like, and cuts foliage. It concerns the device.

[0002]

2. Description of the Related Art A root-cut onion with foliage is harvested by an onion picker, and the foliage is cut by a tapping device and stored in a container or the like. A stationary onion harvesting device equipped with this tapping device (foliage cutting device) is shown in FIG.
At the bottom of the hopper, the onion with foliage (hereinafter referred to as onion) 100 is charged from the loading container as shown in FIG.
A rod conveyor 400 is provided, and the first rod conveyor 40 is provided.
0 drop-in section 401 and the drop-in section 50
1 is located, a second rod conveyor 500 is disposed, and the lifting section 4 of the second rod conveyor 500 is connected to the discharge section 502 of the second rod conveyor 500, and an upwardly inclined lifting conveyor 4 is disposed.
Tapping device (not shown)
The onion with foliage 100 is transferred to the foliage, and the foliage is cut by the tapping device. The lifting conveyor 4 has a lifting section 14 formed by projecting lifting rods 14a obliquely upward at equal intervals in a horizontal row, and spans the left and right chains 24, 24 in a circumferentially parallel manner. The onion 100 is supported one by one between the lifting rods 14a, 14a and transferred to the tapping device a4. In addition, the second rod conveyor
The lifting conveyor 4 and the lifting conveyor 4 are interlocked, and the operation of the first rod conveyor 4 can be controlled individually. The reason for disposing the second rod conveyor 500 directly below the first rod conveyor 400 with a suitable drop height is to use the drop height to loosen the cling of each of the foliage of the onions 100 as much as possible. That's why.

[0003]

Meanwhile, the onion 100 is transferred from the first rod conveyor 400 to the second rod conveyor 500 in a heaping state, and is transferred to the lifting conveyor 4 in a large amount.
It cannot be avoided that 0 is concentrated. In this case, the onion 100 having the processing function of the tapping device or more is lifted by each lifting portion 14 of the lifting conveyor 4 because the clinging of the stems and leaves of the onion 100 cannot be completely unraveled. It is transferred to the tapping device a4 and makes the cutting process of the foliage incomplete. Also, onion 100
Is damaged by the lifting force of the lifting conveyor 4 in the group of onions, rubbed by the lifting rod 14a, and further dropped while being lifted, thereby lowering the commercial value. . Therefore, in reality, a worker (operator) for controlling the operation of the first rod conveyor 400 and averaging the onions 100 transferred to the second rod conveyor 500 is currently secured. . Further, the onion 100 is once transferred to the second rod conveyor 500 so as to cross the boundary between the unloading section 401 of the first rod conveyor 400 and the loading section 501 of the second rod conveyor 500.
The onion 100 is bitten by the rod on the 400
There was also a risk of being crushed and damaged.

SUMMARY OF THE INVENTION The present invention has been made in view of the conventional circumstances, and an object thereof is to provide a stationary type onion harvesting apparatus which automatically transfers a predetermined amount to a tapping apparatus without damaging onions with foliage. It is in.

[0005]

According to a first aspect of the present invention, there is provided a hopper for feeding onions with foliage and a tapping device for cutting the onions and leaves. In the stationary onion harvesting device in contact, the transporting means includes a carry-in conveyor provided at the bottom of the hopper, a downwardly inclined shooter provided in communication with the carry-out portion of the carry-in conveyor, and foliage accumulated on the shooter. An upwardly inclined lifting conveyor for transferring onions to the tapping device, and a sensor provided above the shooter and for stopping the operation of the carry-in conveyor when detecting the top of a predetermined amount of onions with foliage accumulated on the shooter. And the means. According to a second aspect of the present invention, the carry-in conveyor according to the first aspect is a conveyor having a corrugated surface formed of an elastic member as a conveying surface, and the supporting member is positioned on the outer periphery of a pair of left and right chains around one circumference. In this state, the bridge member is installed at equal intervals on the bridge member, and the distal end portion serves as a mounting surface for each bottom portion of the corrugated surface. The inclination angle of the shooter is preferably around 30 degrees, and the lifting conveyor is preferably around 70 degrees. The predetermined amount is about 30 kg to 100 kg, and is appropriately adjusted based on the detection range of the sensor means according to the feeding capacity of the carry-in conveyor, the lifting capacity of the lifting conveyor, and the cutting ability of the tapping device.

According to the above technical means, the following effects are obtained. (Claim 1) The stationary type onion harvesting device detects the top of a predetermined amount of onions with foliage accumulated on the shooter guided by the inclination angle of the shooter, and when the predetermined amount is confirmed by the detection, the operation of the carry-in conveyor is performed. Is stopped, and when it is no longer detected, the operation is started and the onion with foliage is sent to the shooter.
This makes it possible to supply an appropriate amount of onion with foliage to the lifting conveyor by the guide action of the shooter. (Claim 2) The stationary type onion harvesting device is a conveyor having a corrugated surface formed of an elastic member as a conveying surface, and a mounting surface of each bottom of the corrugated surface on the outer periphery of a pair of left and right chains around one circumference. The supporting members are erected at equal intervals on the piece member. Therefore, the onion with foliage when it is put into the hopper is protected by the gentle touch (cushioning property) of the corrugated conveyor, and the onion is reliably fed to the shooter by the corrugated shape. When the corrugated conveyor is guided by the sprocket of the carry-out part and goes round, the corrugated part is located on the outer end of the chain between the support members because the mounting surface of the support member is located on the outer periphery one side outside the chain. It is extended in an arc shape so as to follow closely, and biting due to the remaining wave portion is prevented.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 8 show an embodiment of a stationary type onion harvesting apparatus according to the present invention. Reference symbol A is a stationary onion harvesting device.

As shown in FIG. 1, a stationary type onion harvesting apparatus A includes an onion with foliage from an airframe a1, a mounting table a2 which can be moved up, and a loading container 200 mounted on the mounting table a2.
A hopper a3 into which the 100 is put, a conveying means a5 for transferring the onion with foliage 100 put into the hopper a3 to a tapping device a4, a sensor means a6, a foliage discharge conveyor a7 arranged below the tapping device a4, An elevator conveyor a8 provided in communication with a carry-in section at the lower end portion of the carry-out section of the tapping device a4, a rod conveyor a9 provided in communication with a carry-out section at the rising end of the elevator conveyor a8, and carry-out of the rod conveyor a9. The conveyer is provided with an unloading conveyer a10 provided so as to be orthogonal to the rod conveyer a9 and a foldable mounting table a11 provided directly below the unloading portion at both ends of the unloading conveyer a10.

The stationary type onion harvesting apparatus A is towed by a self-propelled vehicle such as a tractor and is stationary in a field or the like.

The loading table a2 of the carry-in conveyor is connected to the driving means 1 such as a hydraulic cylinder, and is mounted on the upstream end of the machine body a1, that is, at the left end in FIG. Rotation around the shaft attachment part enables dumping,
Specifically, it is rotatable. The mounting table a2 is a box-shaped table for stably mounting a carry-in container 200 accommodating an onion with foliage (hereinafter, simply referred to as onion) 100. The carry-in container 20 is provided by an onion picker or the like.
0 is transferred to the mounting table a2.

The conveying means a5 includes a carry-in conveyor 2 serving as a bottom of the hopper, a shooter 3 having an upper end connected to a carry-out portion of the carry-in conveyor 2, and a lifting conveyor 4 having a carry-in portion connected to a lower end of the shooter 3. It is composed of

The carry-in conveyor 2 is provided with a slight upward inclination toward the downstream as shown in FIG. 1, and as shown in FIG. 5, the transfer surface 12 is constituted by a corrugated surface 12 'formed by an elastic member. .

The carry-in conveyor 2 has an L-shaped bracket 52 fixed at equal intervals to the inner surfaces of the pair of left and right chain members 32,. The supporting member 42 is erected in such a manner that the front end plane is located on the outer circumference of the piece member 32 around the circumference of 52a, 52a, and the front end plane of the supporting member 42 is used as the mounting surface 42a.
Each of the bottoms 12 "of the 2 'is fixed, and the corrugated surface 12' is provided endlessly (see Figs. 5 to 7).

The shooter 3 is connected to the unloading section of the carry-in conveyor 2 and slanted downwardly. The inclination angle of the shooter 3 is set to about 30 degrees in the present embodiment as shown in FIG.
The onion 100 with foliage transferred from the conveyor is supplied to the lifting start end, which is the lower end of the lifting conveyor 4, by a guide function based on a gradient.

As shown in FIG. 4, the lifting conveyer 4 has lifting rods 14a projecting obliquely upward in a horizontal line at predetermined intervals in the circumferential direction across the left and right chains 24,24. And has a conventionally well-known structure in which a large number is provided in parallel with each other, and is obliquely provided on the downstream side of the shooter 3 with an inclination angle of about 70 degrees. Although this lifting conveyor 4 is not described in detail, the onion 100
Is a well-known conveyor that supports and lifts one by one.

The sensor means a6 is a distance detecting sensor such as a photoelectric sensor, and is disposed at an appropriate height above the shooter 3, and the onion accumulated on the shooter 3
The onion 100 at the top of the 100 group is detected, and when it is confirmed that the amount of stagnation becomes larger than a predetermined amount, the operation of the carry-in conveyor 2 is stopped. When the detection is stopped, the onion 100 is sent to the shooter 3. Loading conveyor 2
Is a detection element for controlling the operation. This sensor means a6
The onion 100 is always stagnated on the shooter 3 by the operation control of the carry-in conveyor 2 by the detection of. This appropriate amount of onion
100 indicates the amount of onion 100 that is not lifted by the lifting portion 14 due to excessive supply of onion. Onion 100 intertwined with onion 100 raised by this
100 onions with foliage left on them are forcibly rotated or dragged in a group and lifted together
It is possible to prevent as much as possible a defect on onion damage such as falling on the way.

Reference numeral a12 denotes an intermediate conveyor. This intermediate conveyor a12 is arranged at the lower end of the unloading section of the lifting conveyor 4 so as to be parallel to the unloading section, and is configured to rotate upstream. The onion 100 falling from the discharge section of the hoisting conveyor 4 is received and transferred to a tapping device a4 disposed below.

The tapping device a4 forms a spiral feeder 6 on the surface of each of the screw conveyors 5, 5 comprising a pair of rotary cylinders in parallel, and functions as the spiral feeder 6. During the transportation, the onion 100 gradually changes its direction so that the foliage part faces downward.
0 is moved downstream, and only the foliage is cut by the disc blade 7 and the receiving disc 8 which are disposed at the transport side end thereof and press against each other. Several pairs of screw conveyors 5 having 5 are arranged side by side.

The onions whose stems and leaves have been cut by the tapping device a4 are conveyed upward by a connected elevator conveyor a8, and the stems and leaves 101 are discharged outside by a discharge conveyor a7 arranged below the tapping device a4.

A carry-out conveyor a10 is provided at a carry-out portion, which is the rising end of the elevator conveyor a8, via a rod conveyor a9 toward the upstream side, below the carry-out portion of the rod conveyor a9 so as to be orthogonal to the carry-out portion. .

The unloading conveyor a10 is rotatable in the forward and reverse directions, and unloads the cut onions 100 to an unloading container 300 mounted on a mounting table a11 provided at the left and right end portions of the machine body a1. be able to.

The mounting table a11 of the unloading container 300 is rotatably mounted within a range that is horizontal with the ground from a 90-degree angle along the left and right end surfaces of the body a1. It stands up along the left and right end faces, rotates at a desired angle or becomes horizontal when loading the unloading container 300, and receives and accommodates the onions 100 falling from both unloading portions of the unloading conveyor a10. Reference numeral 9 denotes a hydraulic cylinder for rotating the mounting table a11.

The operation of the stationary type onion harvesting apparatus A constructed as described above will now be described.
The on-loading container 200 is loaded with the onion (onion with foliage) 100 into the hopper by the dumping function (rotating function) of the mounting table a2. The loaded onion 100 is a carry-in conveyor 2 in which the transport surface 12 is constituted by a corrugated surface 12 ′ made of an elastic member.
The shock is alleviated. The carry-in conveyor 2 operates and sends the onion 100 to the shooter 3. The sent onion 100 slides on the slope and stays on the shooter 3. Initially, lifting conveyor 4 and loading conveyor 2
Operate synchronously and the lifting conveyor 4
4. Lift onion 100 and transfer it. Since the feeding amount of the carry-in conveyor 2 is larger in function than the lifting amount of the lifting conveyor 4 to the tapping device a4, the shooter 3
Onion 100 stagnates on top. When the top of the group of onions 100 is detected by the sensor means a6 and a predetermined amount of stagnation is confirmed, the operation of the carry-in conveyor 2 is stopped. When the carry-in conveyor 2 is continuously lifted and the amount of stagnation becomes smaller than a predetermined amount, the detection is released. Therefore, the carry-in conveyor 2 starts operating and the onion 100 is fed onto the shooter 3. In this way, the operation of the carry-in conveyor 2 is repeatedly started and stopped, and an appropriate amount of the onion 100 is constantly stagnated on the shooter 3. The stagnation of the appropriate amount of onion 100 eliminates the possibility that a large amount of the onion 100 is lifted by the tapping device a4, and forces the onion 100 that is intertwined with the onion 100 to be lifted among the remaining onion 100. It is possible to prevent the onion damage such as the onion 100 that has been rotated and rubbed or dragged and dropped together halfway.

Then, the onion 100 from which the foliage 101 has been cut by the tapping device a4 is carried out to the carry-out container 300 via the elevator conveyor a8, the rod conveyor a9, and the carry-out conveyor a10.

[0025]

As described above, the present invention has the following advantages. (Claim 1) Since the sensor means for stopping the operation of the carry-in conveyor when detecting the top of a predetermined amount of onions with foliage accumulated on the shooter is provided, when the predetermined amount of stagnation is confirmed, the operation of the carry-in conveyor is stopped, When it is not detected, it operates and sends the onion with foliage to the shooter,
An appropriate amount of onion with foliage is always stagnated on the shooter, so that a heaped onion with foliage is not supplied to the lifting conveyor as in the related art. Therefore, it is possible to avoid the risk that a large amount of onions with foliage are concentrated on the lifting conveyor and a lot of onions with foliage are lifted at each lifting part as much as possible, and to ensure the foliage cutting processing by the tapping device. it can. In addition, the onion with foliage attached to the onion with foliage lifted at the upper part is dragged and forcibly rotated in the onion accumulated on the shooter, or the onion with foliage lifted and pulled together on the way It is possible to provide a stationary onion-harvesting device that is effective in preventing a problem such as falling onion damage and minimizing a decrease in commercial value. In addition, since the control of the carry-in conveyor is performed by the automatic management by the sensor means, it is not necessary to manage the operation state of the conveyor or to secure a dedicated worker for evenly leveling the onions with foliage. (Claim 2) In addition, since the carry-in conveyor is constituted by a corrugated conveyor made of an elastic member, onions with foliage supplied in a large amount from a container or the like of the onion picker are not damaged by the impact of falling on the conveying surface. When it is guided by the sprocket of the carry-out part and goes round, the wave part is extended between the support members in an arc shape so as to be close to the outer end surface of the chain, so that the wave part is left behind Onion can be prevented from being bitten, which is more effective in maintaining high quality.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing a stationary type onion harvesting apparatus according to an embodiment of the present invention, partially cut away.

FIG. 2 is a partially cutaway view of the same plan view.

FIG. 3 is a partially cutaway view of the front view.

FIG. 4 is a side view showing an outline of a conveying means.

FIG. 5 is a perspective view of a carry-in conveyor.

FIG. 6 is a partially enlarged cross-sectional view showing a main part of the carry-in conveyor.

FIG. 7 is a sectional view taken along line (7)-(7) of FIG. 6;

FIG. 8 is a side view schematically showing a main part of a conventional stationary onion harvesting device.

[Explanation of symbols]

A: Stationary type onion harvesting device 100: Onion with foliage a3: Hopper a4: Tapping device a5: Conveying means 2: Carry-in conveyor 3: Shooter a6: Sensor means 12: Conveying surface (conveying surface of carry-in conveyor) 12 ': Corrugated surface 22: Chain 32: Piece member 42: Support member 4: Lifting conveyor 12 ": Each bottom of corrugated surface 42a: Mounting surface

Claims (2)

[Claims] 1. A stationary type onion harvesting device in which a hopper for feeding onion with foliage and a tapping device for cutting the onion and foliage of the onion are connected by a transporting means, wherein the transporting means includes a loading conveyor provided at the bottom of the hopper. A downwardly inclined shooter provided in communication with the unloading section of the carry-in conveyor, an upwardly inclined lifting conveyor for transferring onions with foliage accumulated on the shooter to the tapping device, and provided above the shooter. And a sensor means for stopping the operation of the carry-in conveyor upon detecting the top of a predetermined amount of onions with foliage accumulated on the shooter. 2. The carrying conveyor according to claim 1, wherein the carrying member is a conveyor having a corrugated surface formed by an elastic member as a conveying surface, and the supporting member has its leading end located on the outer periphery of a pair of right and left chains. The stationary type onion harvesting device according to claim 1, wherein the bridge member is installed at equal intervals on the piece member, and the tip portion is a mounting surface for each bottom portion of the corrugated surface.