JPH06189611A - Apparatus for cutting rush seedling to even length - Google Patents

Abstract

PURPOSE:To prevent a belt from loosening and further ensure the cutting of rush seedlings while facilitating the feed of the nipped and conveyed rush seedlings to a pair of upper and lower endless conveying belts in an apparatus for cutting the rush seedlings to an even length. CONSTITUTION:This apparatus is obtained by installing respective intermediate idler rollers 40 and 50 in a pair of upper and lower endless conveying belts 8 and 9 in an asymmetric state on the upstream side of the conveying from cutting means (14a) and (14b) and arranging the extended direction of a conveying surface by the endless conveying belt 8 from a winding, stretching and supporting roller 52 on the upstream side of conveying in the upper endless conveying belt 8 to the idler roller 50 so as to greatly spread and tilt toward the upstream side of the conveying relatively to the conveying direction by the lower endless conveying belt 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for trimming the roots and stems of rush seedlings prior to transplantation.

[0002]

2. Description of the Related Art As a prior art of this type of device, Japanese Patent Laid-Open No.
In Japanese Patent Laid-Open No. 108403, a pair of upper and lower endless conveyor belts sandwiches a stem portion of a rush seedling while transporting it in a direction intersecting with the stem axis line. In an aligning device for rush seedlings configured to cut the tip part, a pair of front and rear wrapping support rollers in the upper endless conveyor belt is a side surface with respect to a pair of front and rear wrapping support rollers in the lower endless conveyor belt. It is disposed with a positional shift on the downstream side in the transport direction as viewed. And
The intermediate idler roller of the lower endless conveyor belt is arranged upstream of the disc cutter blade, which is the cutting means, in the conveying direction, while the intermediate idler roller of the upper endless conveyor belt is arranged downstream of the disc cutter blade in the conveying direction. What has been done is disclosed.

[0003]

A pair of upper and lower intermediate idler rollers in the above-mentioned prior art has a function of preventing looseness of the endless conveyor belt when the rush seedlings are conveyed while being sandwiched by the pair of upper and lower endless conveyor belts. , And also has an action of preventing the grass seedlings to be sandwiched from escaping to the disk cutter blade portion. Further, when the pair of upper and lower idler rollers are arranged at the positions opposed to each other, the interval between the pair of endless conveyor belts is regulated at that position, and the grass plant seedlings larger than the interval may be damaged by the clamping pressure. As in the prior art, a pair of upper and lower intermediate idler rollers are arranged at non-opposing positions.

On the other hand, it is necessary to greatly widen the gap between the pair of endless conveyor belts on the upstream side of the conveyor so that the rush seedlings can be easily supplied to the pair of upper and lower endless conveyor belts. In order to solve this problem, in the above-mentioned prior art, if the position of the front side (transport upstream side) of the upper endless transport belt is arranged far away from the lower endless transport belt, the intermediate end of the upper endless transport belt is increased. Since the idler roller is arranged on the downstream side in the transport direction with respect to the disc cutter blade, the action of preventing the slack of the endless transport belt and the grass seedlings to be sandwiched do not escape to the disc cutter blade location. There is a problem that the action to do is weakened.

An object of the present invention is to solve these problems with a simple structure.

[0006]

In order to achieve the above-mentioned object, according to the present invention, a pair of upper and lower endless conveyor belts sandwiches the stem portion of a rush and conveys it in a direction intersecting with the stem axis. In the cutting and aligning device of the rush seedlings configured to cut the root lower part and the tip of the rush seedling by the cutting means, each intermediate idler roller in the pair of endless conveyor belts, The upper endless conveyor belts are arranged so as not to face each other, and the extension direction of the conveying surface from the winding support roller on the upstream side of the upper endless conveyor belt to the idler roller is conveyed with respect to the conveying direction by the lower endless conveyor belt. It is widened and inclined toward the upstream side.

[0007]

With this configuration, a large gap can be opened so that the upper endless conveyor belt is inclined at a large angle with respect to the lower endless conveyor belt on the upstream side of the conveyor, which is the rush seedling supply section. Therefore, it becomes easy to supply the plant of the rush seedling, and it is easy to hold it. Moreover, since the position of each intermediate idler roller on both endless conveyor belts is arranged at the non-opposing position (the position displaced in the front-rear direction in the conveying direction) on the upstream side of the conveying means relative to the cutting means, while sandwiching the rush seedlings. Both the action of preventing the slack of the pair of endless transport belts during transport and the action of preventing the grass seedlings to be sandwiched from escaping to the cutting site by the cutting means are not impaired. Has the effect of saying.

Further, since the position of the intermediate idler roller in the upper endless conveyor belt is merely located upstream of the cutting means in the conveying direction, it is not necessary to increase the number of idler rollers to be installed and the cost can be reduced. It has an effect of contributing.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. Fig. 1 is a left side view of a cutting and aligning device for hay plant, Fig. 2 is a front view taken along the line II-II of Fig. 1. 3 is a right side view, FIG. 4 is a front view of a main part, FIG. 5 is a plan view of a lower endless conveyor belt, and FIG. 6 is a plan view of an upper endless conveyor belt.

The cutting and aligning device 1 for rush seedlings comprises a main unit A and a trolley unit B. The trolley unit B has a pair of front and rear pipe-shaped frames 2a and 2b bent downward and a lower end. It consists of a pedestal 3 with caster wheels 6 on each frame 2
The pedestal 3 is vertically movably fitted into the hollow stanchions a and 2b, and the locking pins 5 are inserted into a plurality of pin holes 4 formed in the pedestal 3 at different height positions to adjust the height. Lock as much as possible.

The main unit A is supported by support members 7, 7 that connect the front and rear frames 2a, 2b on both left and right sides. In this machine section A, a lower endless conveyor belt 8 and an upper endless conveyor belt 9, a supply port 10 on the left side and a discharge port 11 in FIG.
Is arranged on the right side, and a pair of upper and lower endless conveyor belts 8 and 9 which are driven at the same speed sandwich the stalk portion of the rush seedling I in a direction intersecting the stem axis line (substantially right angle direction). Transport. In that case, the pair of upper and lower endless conveyor belts 8 and 9 are arranged such that the stem axis of the weed seedling I forms an angle θ1 with the horizontal plane.
Are arranged such that their transport surfaces are inclined (see FIG. 1).
Thus, the tip of the rush seedling I can be conveyed in a state in which the tip end side faces upward toward the front side of the machine unit A, and the root portion is rear side and lower side.

Cutting means 14a and 14b composed of a pair of upper and lower disc cutters 12 and 13 are arranged on the front edge side and the rear edge side of the endless conveyor belts at midpoints of the upper and lower pairs of the endless conveyor belts 8 and 9 in the conveying direction. Then, the root lower part Ib and the tip part Ia of the rush seedling I are cut and cut to a length L (see FIG. 7).
As described above, the stem axis of the rush plant I is at an angle θ1 with respect to the horizontal plane, and the root portion is located downward, so that the root is less likely to hang downward with respect to the stem axis. It is possible to reliably cut the lower root Ib of the.
Further, as described above, the fact that the stem axis is inclined and that the tip portion Ia of the rush seedling I is projected outside the machine near the upper side of the frame 2a on the front surface side of the bogie portion B are combined with the front surface of the machine portion A. It is possible to lower the height position of the hand of the operator who holds the tip portion Ia side of the rush seedling I on the side, and make it easier for the operator to stand or sit on the chair and improve work efficiency. it can.

As shown in FIG. 2, on the left side of the supply port 10, there is provided a slide guide 15 having a shape of a letter when viewed from the front, and a bracket 17 on the left side surface of the cover body 16 of the lower endless conveyor belt 9.
While being fixed via the contact plate 18, the back end of the supply guide slide 15 having the width dimension (W1) extends obliquely upward at a right angle to the upper surface thereof and extends in the direction of the supply port 10.
And the root portion of the rush seedling I placed on the supply guide slide 15 is brought into contact with the pad plate 18. The cover plate 18 is attached to the cover body 19 of the upper endless conveyor belt 8 and the cover body 1.
6 is slidably mounted on a pair of upper and lower guide rails 20 fixed to the left side surface of 6, respectively, and positioned by a fixing means such as a wing nut to perform positioning adjustment with respect to the cutting means 14b for cutting the roots. Reference numeral 21 is a discharge guide for guiding the sown rush seedlings toward the storage box 22, and reference numeral 23 is a box for storing the cut lower part Ib (shavings) which is naturally dropped. The worker holds the tip of the rush seedling I by hand and accompanies the outlet 11.

Next, the structures of the upper endless conveyor belt 8 and the lower endless conveyor belt 9 will be described with reference to FIGS. 2 and 4 to 6. The lower endless conveyor belt 9 is wound around and supported by a drive winding support roller 24 on the downstream side (right side in FIG. 2) in the transport direction and a winding support roller 25 for tension on the upstream side (left side in FIG. 2) in the transport direction. The lower drive shaft 27 of the winding support roller 24 is connected to the lower support frames 26, 2 of the front-rear pair.
6 is rotatably supported by a shaft. The lower endless conveyor belt 9 is driven by a chain 31 wound around a chain sprocket 28 attached to the lower drive shaft 27 and a chain sprocket 30 of a drive motor 29 with a speed change mechanism arranged in the space inside the lower cover body 19.

Large-diameter disk cutters 13, 13 are detachably and non-rotatably fixed to the cutting lower drive shaft 32 of the cutting means 14a, 14b rotatably supported by the lower support frames 26, 26. It is rotationally driven via a chain 35 wound around a chain sprocket 33 of a drive motor 29 and a chain sprocket 34 of a lower cutting drive shaft 32. Both ends of a support shaft 36 that rotatably supports the winding support roller 25 for tension are attached to the lower support frame 2.
Brackets 3 which are slidably supported by front and rear elongated holes 37, 37 formed in 6, 6 and are attached to both ends of a support shaft 36.
The tension of the endless conveyor belt 9 is adjusted via the 8 and the adjusting screw 39.

The idler roller 40 is on the front side of the disk cutter 13 in the carrying direction, and is also on the disk cutter 13.
By locating in the vicinity of the overlapping position (cutting position substantially along the transport direction) between the upper and the upper disk cutter 12, the position of the rush seedling I at the time of cutting is regulated from shifting to the radius center side of the disk cutter 13, and cutting is performed. The action can be improved. The guide support plate 57 is attached to the outside of the rear lower support frame 26 via the bolts 58 and the bracket 59, and the root lower part Ib conveyed to the guide support plate 57 rides on the rear lower part support frame 26 so that the root lower part Ib is attached to the stem axis. It is possible to prevent drooping at a large angle with respect to, and the cutting is more reliable.

The upper endless conveyor belt 8 is divided into an upper root side conveyor belt 8a and an upper tip side conveyor belt 8b in the longitudinal direction of the belt. 42 is a pair of upper and lower support frames 4
A gear 44, which is rotatably supported by 3, 43 and is attached to the upper drive shaft 42, meshes with a gear 45, which is attached to the lower drive shaft 27, and is rotationally driven in a predetermined direction. Further, small-diameter disk cutters 12, 12 are detachably and non-rotatably fixed to the cutting upper drive shaft 46 of the cutting means 14a, 14b, and the upper drive shaft 42 and the cutting upper drive shaft 46 are connected to the chain 4.
7. Chain sprocket 48, 49 interlock.

The intermediate idler roller 50 in the upper endless conveyor belt 8 is separated into a small-diameter roller 50b on the root side and a large-diameter roller 50a on the tip side, which are independently rotatably supported by a support shaft 51. ing. The idler roller 50 is provided with the disc cutters 12, 12
The idler roller 4 in a side view on the upstream side of the conveyance
It is not opposed to 0 and is disposed close to the lower endless conveyor belt 9. On the other hand, the tension winding support roller 52 on the upstream side in the transport direction is disposed at a position away from the lower endless transport belt 9, and the endless transport belt 8 from the winding support roller 52 to the idler roller 50 is provided. The extension direction of the transport surface is configured to be largely spread and inclined (angle θ2) toward the transport upstream side (supply side) with respect to the transport direction of the lower endless transport belt 9.

A support shaft 53 for rotatably supporting the winding support roller 52 is slidably supported in a long hole 54 formed in the upper support frames 43, 43 so as to be pulled in the direction of the inclination angle θ2. The tension of the endless conveyor belt 8 is adjusted via brackets 55 and adjustment screws 56 attached to both ends of the support shaft 53. Thus, since the intermediate idler rollers 50 and 40 of the pair of endless conveyor belts 8 and 9 driven at the same speed are arranged in a non-opposing manner on the upstream side of the conveyance from the cutting means, as shown in FIG. In addition, the endless conveyor belts 8 and 9 for conveying the rush seedlings I while sandwiching them.
There is an effect that neither the action of preventing the looseness nor the action of preventing the grass seedlings to be sandwiched from escaping to the cut portion by the roller cutter blades 12 and 13 is impaired.

The upper endless conveyor belt 8 is also provided with a winding support roller 52 on the upstream side of the conveyor to an idler roller 50.
The winding support roller 52 is extended from the lower endless conveyor belt 9 so that the extending direction of the endless conveyor belt 8 up to and including the lower endless conveyor belt 9 is greatly expanded and inclined toward the upstream side with respect to the extending direction of the lower endless conveyor belt 9. Since the idler roller 50 is arranged so as to approach the lower endless conveyor belt 9, the idler roller 50 is arranged so that the conveyor surface of the upper endless conveyor belt 8 with respect to the lower endless conveyor belt 9 is on the upstream side of the conveyor which is the supply section of the rush seedling I. The gap can be wide open so that it can be inclined at a large angle. Therefore, the rush seedling stock should be supplied to the feed port 1 of this machine unit A.
It is easy to supply to 0, and it is easy to pinch. Moreover, since the position of the intermediate idler roller 50 in the upper endless conveyor belt 8 is merely located upstream of the cutting means 14a, 14b in the conveying direction, the above-mentioned two effects can be achieved without increasing the number of idler rollers installed. (The effect of preventing the slack of the endless conveyor belt when nipping and transporting rush seedlings and the effect of preventing the entwined weed seedlings I from escaping to the cutting point) This simplifies the manufacturing process and also reduces the manufacturing cost.

If the operator moves the stalk portion of the rush seedling I on the tip end side by hand from the supply port 10 to the discharge port 11, the labor of the worker increases. Therefore,
As shown in FIGS. 9 to 11, the upper and lower stalk-holding conveyor belts 6 are provided on the front side of the main unit A in both endless conveyor belts 8 and 9.
0 and 61 are arranged so that both endless conveyor belts 8 and 9 can be conveyed at the same speed. Protrusions 62 for preventing the sliding of the stems are provided on the outer peripheral surfaces of the upper and lower stem-holding and conveying belts 60, 61.
Are formed at appropriate intervals. As a result, after the stem portion on the tip side of the rush seedling I is manually attached and guided to the 10 supply ports, the stem portion on the tip side is clamped by the pair of stem clamping conveyor belts 60, 61. The person can let go and move to the next work of supplying the rush seedlings I to improve work efficiency and reduce fatigue.

The pulley 63 for supporting the downstream end of the lower stalk-holding and conveying belt 61 on the conveying downstream side is provided with the cutting means 14a.
By arranging the lower endless conveyor belt 9 between the lower endless conveyor belt 9 and the winding support roller 41 for supporting the end portion on the downstream side of the conveyor, the stalk (the portion to be discarded as unnecessary) on the side of the tip is separated from the lower endless conveyor belt. Since it is not brought to the transport downstream end of 9, that is, the discharge location of the grass seedlings to be trimmed, the subsequent sorting work is extremely easy.

In the embodiment shown in FIGS. 12 and 13, the height position and inclination angle of the main body section A of the cutting and aligning device for rush seedlings are determined according to the height of the worker and the type of standing work and sitting work on a chair. It is an example of a configuration that allows adjustment and change. In this embodiment, as described above, the trolley portion B is composed of a pair of front and rear pipe-shaped frames 2a and 2b bent downward and a pedestal 3 having caster wheels 6 at its lower end. The pedestal 3 is vertically movably fitted into the hollow stanchions of the frames 2a and 2b, and the locking pins 5 are inserted into a plurality of pin holes 4 formed in the stanchion 3 at different height positions. Adjustably locked.

On the other hand, of the front and rear frames 2a, 2b,
Brackets 6 attached to the left and right sides of the front frame 2a
While the main body unit A is rotatably supported at 65 pivotal support shafts 64 and 64, a plurality of replacement holes 67 for changing the rotation angle are provided in brackets 66 attached to the left and right sides of the rear frame 2b. And the locking pin 68 inserted into the optional replacement hole 67 is fitted and supported in the locking hole (not shown) on the side surface of the main unit A. It should be noted that a plurality of replacement holes may be provided on the side surface of the main unit A and the locking hole may be provided on the bracket 66 side. In this way, the angle θ1 at which the stem axis of the rush plant I to be conveyed is inclined with respect to the horizontal plane can be changed and adjusted arbitrarily (0 to 90 degrees) as shown by the chain double-dashed line in FIG. Therefore, in addition to the height adjustment of the trolley portion B, the height and inclination posture of the device can be finely adjusted according to the difference between the standing work and the sitting work on the chair and the difference in the height of the worker. .

[Brief description of drawings]

FIG. 1 is a left side view of a cutting and aligning device for weed seedlings.

FIG. 2 is a front view taken along the line II-II of FIG.

FIG. 3 is a right side view of the same.

FIG. 4 is an enlarged front view of the main part of the main unit.

FIG. 5 is a partially cutaway plan view of a lower endless conveyor belt.

FIG. 6 is a partially cutaway plan view of an upper endless conveyor belt.

FIG. 7 is an explanatory view showing trimming of rush seedlings.

FIG. 8 is an explanatory diagram showing a state of transporting rush seedlings by the upper and lower endless transport belts.

FIG. 9 is a front view showing another embodiment.

FIG. 10 is a plan view of the upper endless transport belt.

FIG. 11 is a plan view of the lower endless conveyor belt of the same.

FIG. 12 is a fold side view of an example showing a configuration for adjusting the posture of the trimming device for rush seedlings.

FIG. 13 is a plan view of the same.

[Explanation of symbols]

 A Main machine section B Truck section I Ikusa seedling 1 Cutting and aligning device 2a, 2b Frame 3 Pillar 8 Upper endless conveyor belt 9 Lower endless conveyor belt 10 Supply port 11 Discharge port 12 Upper disc cutter 13 Lower disc cutter 14a, 14b Cutting means 15 Supply guide slide 16, 19 Cover body 18 Abutment plate 24, 25, 41, 52 Winding support roller 29 Drive motor 40, 50 Idler roller 60, 61 Stem sandwiching conveyor belt

Claims (1)

[Claims] 1. A pair of upper and lower endless conveyor belts sandwiches a stem portion of a rush seedling while transporting it in a direction intersecting with the stem axis, and then, by a cutting means, a lower root portion and a tip portion of the rush seedling. In the cutting and aligning device for edible grass seedlings configured to cut, the intermediate idler rollers in the pair of endless conveyor belts are arranged in a non-opposing manner upstream of the cutting means, and the upper endless endless rollers are provided. The extension direction of the conveyance surface from the winding support roller on the conveyance upstream side of the conveyance belt to the idler roller is largely inclined toward the conveyance upstream side with respect to the conveyance direction of the lower endless conveyance belt. Cutting and cutting device for rush seedlings.