JP3037621B2 - Seedling box cleaning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling box washing machine capable of automatically washing a seedling box.

[0002]

2. Description of the Related Art As shown in FIG. 7, a conventional seedling box washing machine includes a swinging brush 102 and an intermediate brush 103 provided on both side plates 101B and 101C of a washing machine main body 101 from a supply port 120 side to an outlet 121 side. The rear brush 104 is rotatably supported, and the seedling box W ₀ (see FIG. 8) supplied from the supply port 120 is transported at low speed and intermittently rotated by the ratchet mechanism 125 (only 105B is shown). Rolls 105A and 107A that rotate freely
Roller mechanism 105 and take-out roller mechanism 1 provided with
07 and the guide rod 111 from the outlet 121.
The cleaning liquid is sprayed by the liquid supply pipe 108 before being discharged upward, and the entire surface is wiped by the oscillating brush 102, the side brushes 102B and 102C, the intermediate brush 103, and the rear brush 104 in order. It is configured. Incidentally, the supporting rollers 106 for supporting the seedling box W ₀ is provided between the supply roller mechanism 105 and the take-out roller mechanism 107.

[0003] Supply roller mechanism 1 of this conventional seedling box cleaning machine
05, as shown in FIG. 8, the clamping than shown lower the seedling box W ₀ by the pressing roll 105A to rotate freely disposed the transport rollers 105B and the upper side is forced rotation is disposed on the lower side it is intended to convey by friction force generated between the outer peripheral surface and the external surface of the bottom wall of the seedling box W ₀ in a state transport roll 105B. The take-out roller mechanism 107 is configured similarly to the supply roller mechanism 105 (JP-A-6-9 / 1994).
8639).

[0004]

In the above-mentioned prior art, since the supply roller mechanism and the take-out roller mechanism are configured as described above, a seedling box having a predetermined size and shape is transported at a low speed and the entire surface thereof is moved. Can be washed. But,
The size and shape of the seedling box are not standardized and vary depending on the manufacturer.For example, when used for washing seedling boxes with shallow depth,
An unsolved problem that the frictional force generated at the abutting portion between the seedling box and the transfer roll is small, so that the seedling box cannot be transported smoothly, and in some cases, the seedling box may stagnate in the main body of the washing machine. There were challenges.

[0005] Even when seedling boxes having the same size and shape are used for cleaning a seedling box having a small surface friction coefficient or a seedling box whose surface has been worn down for a long period of time, the seedling box may not be used. There is a problem that the frictional force generated at the contact portion between the roller and the transport roll is small, so that the transport cannot be performed smoothly.

The present invention has been made in view of the above-mentioned unsolved problems of the prior art, and is a seedling box having different dimensions and shapes, a seedling box having a small surface friction coefficient, or
It is an object of the present invention to realize a seedling box washing machine capable of transporting a seedling box, whose surface has been worn down for a long period of time, so that it can be transported smoothly and reliably to clean the entire surface.

[0007]

In order to achieve the above object, a seedling box washer according to the present invention comprises a box having a supply port on one side wall and a discharge port on the other side wall. A main body, an upper brush, a lower brush, and a side brush for wiping an upper surface, a lower surface, and a side surface of a seedling box introduced from the supply port into the main body; In a seedling box washing machine provided with a transport roll that comes into contact with an upper surface of the provided seedling box and a driving unit for forcibly rotating the upper brush, the lower brush, the side brush, and the transport roll, the upper brush and the A gate-shaped guide member having a swing fulcrum on the supply port side of the main body disposed between a transport roll and the lower brush and having a free end extending below the transport roll; Department A spacer integrally provided on the lower surface in the vicinity of the free end portion, and a position in which the elastic member constantly urges the spacer upward to directly contact the lower surface of the guide member and a position in contact with the lower surface of the spacer. And a guide roll freely rotatably supported by the support rod, and the guide roll has an outer diameter such that the support rod directly contacts the guide member. The outer peripheral surface of the guide roll has a dimension slightly protruding from the upper surface of the guide member, and the outer peripheral surface of the guide roll becomes the guide member when the spacer is brought into contact with the spacer. Dimensions that do not protrude from the upper surface.

In addition, instead of providing a spacer integrally on the lower surface near the free end of the guide member, a distal end side of a drain plate for preventing the washing liquid from scattering from an outlet provided near the outlet of the main body is provided. A spacer having a locking portion bent downward is protruded inward, and a notch portion is provided at the tip of the spacer, in which a guide roll freely rotatably supported by a support rod is loosely fitted. Is also good.

Further, it is effective to provide a liquid storage member having a recess for storing the cleaning liquid below the lower brush.

[0010]

When a sufficient frictional force is obtained between the surface of the seedling box and the transport roll, the guide rod is supported by the support rod so as to be freely rotatable by contacting the support rod with the lower surface of the spacer. The outer peripheral surface of the seedling box does not protrude from the upper surface of the guide member, so that the seedling box can be elastically pressed toward the upper brush and the transport roll by the guide member. As a result, even if seedling boxes with different heights are transported smoothly and reliably, the entire surface can be completely washed.

If the surface condition of the seedling box does not provide a sufficient frictional force with the transport roll, the support rod is brought into direct contact with the lower surface of the guide member to freely rotate on the support rod. By setting the outer peripheral surface of the supported guide roll to slightly protrude from the upper surface of the guide member, the seed roll can be elastically pressed toward the upper brush and the transport roll by the guide roll. As a result, for example, even a seedling box having a small surface friction coefficient or a seedling box whose surface has been worn down for a long time can be transported smoothly and reliably to completely clean the entire surface.

[0012]

Embodiments of the present invention will be described with reference to the drawings.

1 and 2 show a seedling box washing machine according to one embodiment of the present invention. FIG. 1 is a schematic plan view showing a state where a cover, an upper brush and the like are removed, and FIG. 2 is a state where a side wall is removed. It is a schematic side view shown.

The seedling box washer of this embodiment is shown in FIGS.
As shown in FIG. 1, the main body 1 has a box shape, a cover 1a is detachably provided at an upper opening, and four legs 2a are detachable from the main body 1. It is supported by the frame 2.

A supply port 4a for introducing a seedling box is provided on a front wall 4, which is one of the mutually facing side walls of the main body 1, and a seedling box is discharged on a rear wall 5, which is the other side wall. Outlets 5a are provided respectively for
A nozzle 29, which is a liquid supply means for spraying the cleaning liquid, is provided at an upper portion in the main body 1, and a motor 8 is provided below the portion of the bottom wall 7 other than the drain port 7a. .

In the present embodiment, the supply port 4a and the discharge port 5a are provided with flexible plates 4c and 5b made of rubber or the like in the form of goodwill so that the cleaning liquid is not scattered outside the machine. I have.

At a position near the bottom wall of both side walls 6a and 6b substantially parallel to the traveling direction of the seedling box of the main body 1, a main shaft 12 is
A lower brush 23 and side brushes 24 disposed on both sides thereof are attached to the main shaft 12 so as to rotate integrally therewith.

An upper brush shaft 26 integrally provided with an upper brush 25 is rotatably provided via a bearing (not shown) above the main shaft 12 on both side walls 6a and 6b. Further, the roll shaft 18a of the transport roll 18 is provided at a position near the discharge port 5a on both side walls 6a and 6b.
8b so as to be rotatable.

In this embodiment, the transport rolls 18
Is composed of a pair of grooved rolls arranged at an interval in contact with both side edges of the seedling box, but is not limited thereto, and may be a single roll having a length in contact with both side edges of the seedling box. .

Here, the upper brush 25, the lower brush 23 and the side brush 24, and the transport roll 18
An example of the driving means for forcibly rotating the motor will be described.

A large pulley 10 is integrally provided at one end of a main shaft 12 projecting from one side wall 6a, and is integrally provided at a tip of an output shaft 8a of a motor 8 projecting from one side wall 6a. A belt 11 is looped between the small pulley 9 and the large pulley 10. The other end of the main shaft 12 protruding from the other side wall 6b is provided with the driving sprocket 1
4 are integrally provided, and the driving sprocket 1
4 is connected to a distal end side of a crank rod 15a of a crank mechanism 15 via a pin 14a.

A driven sprocket (not shown) is provided at the tip of the upper brush shaft 26 projecting from the other side wall 6b.
Are provided integrally, and a chain (not shown) is provided between the driving sprocket 14 and the driven sprocket.
Is being circulated. Further, a ratchet mechanism 13 is attached to the tip of the roll shaft 18a protruding from the other side wall 6b.

The ratchet mechanism 13 may be a known one. For example, the outer ring is oscillated through a crank mechanism 15 and is integrated with an inner ratchet disposed inside the ratchet via a ratchet (not shown). What is necessary is just to be able to intermittently rotate the provided roll shaft 18a at a low speed in the direction of transporting the seedling box.

Brackets 4b are provided just below both side edges of the opening of the supply port 4a of the front wall 4, and both brackets 4b are provided at both ends of a gate-shaped guide member 19 having a bar-like body bent. Are swingably mounted. That is,
The gate-shaped guide member 19 has a swing fulcrum on the supply port 4a side of the main body 1 and is set to have a size such that its free end 19a reaches the vicinity of the discharge port 5a below the pair of transport rolls 18. ing.

At the portion near the free end 19a on the illustrated lower surface of the gate-shaped guide member 19, both ends are tension springs 28.
Support rod 27 suspended on both side walls 6a, 6b through
Is abutted.

In this embodiment, a pair of guide rolls 27a are provided on the support rod 27 so as to be freely rotatable. The outer diameter of the pair of guide rolls 27a is such that the support rod 27 is attached to the lower surface of the guide member 19. In the case of direct contact, the outer peripheral surface slightly protrudes upward in the figure from the upper surface of the guide member 19 (about 3 m).
m).

On the other hand, a pair of spacers 30 are attached to the lower surface near the free end 19a of the guide member 19, and the thickness of the spacer 30 is such that the support bar 27 is in contact with the lower surface. At times, the outer peripheral surfaces of the pair of guide rolls 27 a are set to dimensions that do not protrude from the upper surface of the guide member 19.

Although not shown, it is preferable to provide a concave portion or a convex portion for preventing the sliding of the support rod 27 in contact with the lower surface of the spacer 30. In addition, one guide roll that is not divided may be used instead of the pair of guide rolls.

As is clear from the above description, the support rod 2
7 is devised so that it can be switched between a position directly in contact with the lower surface of the guide member 19 and a position in contact with the lower surface of the spacer by being constantly urged upward by a tension spring 28 which is an elastic member. ing.

In this embodiment, the support rod 2
7 are locked by stepped portions 20a of a pair of guide / stoppers 20 for guiding the seedling boxes projecting from both sides of the opening of the outlet 5a of the rear wall 5 toward the outlet 5a. With such a configuration, a predetermined interval is always maintained between the guide member 19 and the pair of transport rolls 18. Also, as shown in FIG.
A hood portion 6c which protrudes outward is provided integrally with the peripheral edge portions of both side walls 6a and 6b constituting the above-mentioned structure, and the driving means is configured to fit inside the opening surface of the hood portion 6c. I have. Therefore, it is possible to prevent the driving means from being exposed to the outside only by attaching a detachable flat side cover (not shown) to the hood 6c, which is excellent in terms of safety and maintenance.

Next, the operation of the seedling box washer according to the present embodiment will be described.

(When the support rod 27 is brought into contact with the lower surface of the spacer 30 in order to wash the seedling box in which a sufficient frictional force is obtained between the seedling box and the transport roll) As shown in FIG. Then, the transport roll 18 is forcibly rotated in a direction for feeding the seedling box, and the upper brush 25, the lower brush 23, and the side brush 24 (see FIG. 1) are forcibly rotated in the directions of arrows.

Next, when the seedling box (not shown) is pushed down to a position where the tip of the seedling box reaches between the upper brush 25 and the lower brush 23, it is urged upward by the elastic force of the tension spring 28. The guide member 19 elastically presses the seedling box toward the upper brush 25 via the support rod 27 provided.

After the above, the seedling box advances while pushing down the guide member 19 against the elastic force of the tension spring 28, during which the washing liquid is sprayed from the nozzle 29 and at the same time the upper brush 25 and the lower brush 23 The upper, lower, and side surfaces of the seedling box are reliably wiped by the side brush 24 and the entire surface is cleaned.

In the present invention, the upper and lower surfaces of the seedling box are
The surface of the seedling box introduced into the main body 1 faces upward and downward, respectively. For example, when the bottom wall is introduced downward, the outer surface of the bottom wall is the lower surface.

After the above, the leading end side of the seedling box is discharged to the outside from the discharge port 5a, and the rear end side of the seedling box is
The guide member 19 resiliently presses the seedling box toward the transport roll 18 by the elastic force of the tension spring 28 during the transport to the portion located between the guide member 8 and the guide member 19. An appropriate frictional force is generated between the member 19 and the seedling box, and the seedling box is transported in the main body 1 at a stable speed, and the guide rod 21c is smoothly moved from the discharge port 5a without popping out vigorously. Is discharged onto the discharge guide member 21 having the same.

(When the support rod 27 is directly in contact with the lower surface of the guide member 19 in order to wash the seedling box in which a sufficient frictional force cannot be obtained between the seedling box and the transport roll) As shown in FIG. The upper brush 25 and the lower brush 2
3 and the side brush 24 (see FIG. 1) are forcibly rotated in the directions of the arrows.

Next, when the seedling box is pushed down to a position where the tip of the seedling box reaches between the upper brush 25 and the lower brush 23, the guide member 19 is moved upward through the support rod 27 by the elastic force of the tension spring 28. The seedling box is pressed toward the upper brush 25 because it is urged toward.

After the above, the seedling box advances while pushing down the guide member 19 against the elastic force of the tension spring 28, and the lower surface of the tip rides on the guide roll 27a, so that the frictional force with the seedling box decreases. . During this time, the cleaning liquid is sprayed from the nozzle 29 and the upper brush 2
5, the upper surface, the lower surface, and the side surfaces are reliably wiped by the lower brush 23 and the side brushes 24, and the entire surface is cleaned.

After the above, the leading end side of the seedling box is discharged outside through the discharge port 5a, and the rear end side of the seedling box is
The guide roll 27a resiliently presses the seedling box toward the transport roll 18 by the elastic force of the tension spring 28 while the guide roll 27a is transported to a portion located between the guide roll 27 and the guide roll 27a. The frictional force between the seedling box 27a and the seedling box is reduced, and the seedling box is moved by the transport roll 18 with an appropriate pressing force.
And is transported at a stable speed.
It is discharged onto the discharge guide member 21 having 1c.

Next, modified examples of the guide member and the spacer in the seedling box washing machine of the present invention will be described.

In this modification, as shown in FIG.
In the vicinity of a, a drain plate 50 is disposed so as to cross the lower edge of the opening of the discharge port 5a, and a guide of a pair of guide rolls 27a provided on the support bar 27 so as to freely rotate on the drain plate 50 is provided. A pair of spacers 4 for switching the height with respect to the member 19
0 is provided.

The spacer 40 has a substantially U-shaped cross section, and has at its tip a pair of cutouts 42 of a size such that the tip 41 is bent downward and the pair of guide rolls 27a are loosely fitted. And protrudes inward from the liquid drainage plate 50.

At the position where the guide member 19 is in contact with the surface of the locking portion 41, the support rod 27 directly contacts the lower surface of the guide member 19, and the peripheral surface of the guide roll 27a is
Slightly protrudes from the upper surface of. That is, in this state, the outer peripheral surfaces of the pair of guide rolls 27a contact the lower surface of the seedling box.

On the other hand, in a state where the support rod 27 is in contact with the lower surface between the locking portion 41 of the spacer 40 and the liquid cutting plate 50,
The outer peripheral surface of the guide roll 27a does not protrude from the upper surface of the guide member 19, and in this state, the guide member 19 directly contacts the seedling box. Except for the above, the configuration is the same as that of the above-described embodiment, and a description thereof will be omitted.

FIG. 6 shows another embodiment of the seedling box washing machine of the present invention. The seedling box washing machine of this embodiment has a liquid reservoir member 60 provided below the lower brush 23 in the main body 1. And
The liquid storage member 60 is formed by bending a sheet metal by press working or the like to form a recess 60 a for storing the cleaning liquid 70.

Other than the above, the present embodiment may be the same as the above-described embodiment or modified example, and the description thereof will not be repeated.

According to the present embodiment, the cleaning liquid 70 collected in the recess 60a can be flipped up by the lower brush 23 and struck against the seedling box W for cleaning. Can be reduced, and operating costs can be reduced.

In the present invention, the upper brush is not limited to the above-mentioned embodiment, but may have a channel brush projecting obliquely outward at both ends. Also,
Rotate the upper brush 25 in the direction opposite to the arrow (see FIG. 3),
The lower brush 23 and the side brush 24 may be rotated in opposite directions.

[0050]

Since the present invention is configured as described above, the following effects can be obtained.

Since the seedling box introduced from the supply port is elastically pressed toward the upper brush by the guide member or the guide roll, the seedling box does not flutter due to the rotation of the upper brush and the lower brush, and is smooth. In addition to being able to be introduced into the seedling box washing machine, even if the height of the seedling box is changed by a maker or the like, the seedling box can be smoothly introduced and the entire surface can be completely washed.

In addition, when the condition of the surface of the seedling box is not only when a sufficient frictional force is obtained between the seedling box and the transport rolls, but also when a sufficient frictional force is not obtained between the seedling box and the transport rolls, the support is simply provided. A simple operation of switching between a state in which the rod is in contact with the lower surface of the spacer and a state in which the support rod is directly in contact with the lower surface of the guide member can be achieved.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an embodiment of a seedling box washing machine according to the present invention, with a cover and an upper brush removed.

FIG. 2 is a schematic side view showing the seedling box cleaning machine shown in FIG. 1 with a side wall removed.

3A and 3B show an example of a guide member and a spacer in the seedling box washer of the present invention, wherein FIG. 3A is a schematic side view showing a state where a support rod is in contact with the spacer, and FIG. It is a schematic perspective view which shows the state which made contact.

4A is a schematic side view of the guide member and the spacer shown in FIG. 3 in a state where a support rod is directly in contact with the guide member, and FIG. 4B is a schematic side view in which the support rod is directly in contact with the guide member. It is a schematic perspective view which shows the state which was turned.

FIG. 5 is a schematic perspective view showing a modified example of a guide member and a spacer in the seedling box cleaning machine of the present invention.

FIG. 6 is a schematic side view showing another embodiment of the seedling box cleaning machine of the present invention.

FIG. 7 is a schematic plan view showing an example of a conventional seedling box washing machine with a cover removed.

8 is a partial perspective view showing a supply roller mechanism of the seedling box cleaning machine shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 1a Cover 2 Machine frame 2a Leg 4 Front wall 4a Supply port 4b Bracket 5 Rear wall 5a Outlet port 6a, 6b Side wall 6c Hood part 7 Bottom wall 7a Discharge port 8 Motor 8a Output shaft 9 Small pulley 10 Large pulley 11 Belt 12 Main shafts 12a, 18b Bearings 13 Ratchet mechanism 14 Drive-side sprocket 14a Pin 15 Crank mechanism 15a Crank rod 18 Transport roll 18a Roll shaft 19 Guide member 19a Free end 20 Guide / stopper 21 Release guide member 21a, 21b Guide arm 21c Guide Rod 23 Lower brush 24 Side brush 25 Upper brush 27 Support rod 27a Guide roll 28 Tension spring 29 Nozzle 30, 40 Spacer 41 Engagement part 50 Drain plate 60 Liquid storage member 60a Recess 70 Cleaning liquid

Claims (3)

(57) [Claims] 1. A box-shaped main body having a supply port on one of the side walls facing each other and a discharge port on the other side wall, and an upper surface of a seedling box introduced into the main body from the supply port. An upper brush, a lower brush, and a side brush for wiping a lower surface and a side surface, respectively, a transport roll contacting an upper surface of the seedling box disposed near the discharge port of the main body, and an upper brush and a lower brush. In a seedling box cleaning machine provided with a driving means for forcibly rotating a brush, a side brush and a transport roll, the supply port of the main body disposed between the upper brush and the transport roll and the lower brush. A gate-shaped guide member having a swing fulcrum on its side and a free end extending below the transport roll; a spacer integrally provided on a lower surface near the free end of the guide member; A support rod that is constantly urged upward by a material to switch between a position directly in contact with the lower surface of the guide member and a position in contact with the lower surface of the spacer, and the support rod is freely rotatable. And an outer diameter of the guide roll slightly protrudes from an upper surface of the guide member when the outer diameter of the guide roll directly contacts the support bar with the guide member. A seedling box washer, wherein the spacer has a thickness such that an outer peripheral surface of the guide roll does not protrude from an upper surface of the guide member when the support rod is brought into contact with the spacer. 2. Instead of integrally providing a spacer on the lower surface near the free end of the guide member, a leading end of a guide plate for preventing the washing liquid from scattering from a discharge port provided near the discharge port of the main body is provided. A spacer having a locking portion bent downward is protruded inwardly, and a notch portion is provided at the tip of the spacer, into which a guide roll freely rotatably supported by a support rod is loosely fitted. The seedling box washing machine according to claim 1, wherein 3. A liquid storage member having a recess for storing a cleaning liquid is provided below the lower brush.
Or the seedling box washer according to 2.