JPH07236309A - Pot seeder - Google Patents

Abstract

PURPOSE:To provide a pot seeder capable of eliminating static electricity and sowing fine seeds to each pot without making lost strains in each pot, improved in operating efficiency and suitable for sowing fine seeds of Turkish bellflower by extending an earth cable from a part of the machine body of a pot seeder and grounding the earth cable. CONSTITUTION:In this pot seeder, an earth cable E is extended from a part of a machine body of a pot seeder absorbing seeds from a nozzle opening 9a having opened absorbing hole at the top and grounded, or preferably, the earth cable E is extended from the nozzle opening 9a and grounded, or more preferably, the earth cable E is extended from a nozzle body 9 integrally fixing plural nozzle openings 9a and grounded.

Description

Detailed Description of the Invention

[0001]

[Field of Industrial Application] The present invention, when cultivating flowers and cultivating vegetables, grows seedlings before transplantation inside pots, adsorbs fine seeds to each pot by an adsorption nozzle. And a sowing machine for sowing.

[0002]

2. Description of the Related Art Conventionally, a technique relating to a pot sowing machine has been known. For example, JP-A-58-67
It is the same as the technique described in Japanese Patent Laid-Open No. 104, Japanese Utility Model Laid-Open No. 1-155714, and Japanese Utility Model Laid-Open No. 1-168118.

[0003]

However, in the conventional pot sowing machine, in the case of particularly light seed such as Turkish bellflower, the seed is sucked by the suction nozzle and the suction state is released at the seeding drop opening. When attempting to drop the seeds, the static electricity generated in each part of the machine body may cause the adsorbed seeds not to drop. The present invention solves such a problem.

[0004]

The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be described. In claim 1, the suction hole 5 is formed at the tip.
In a pot sowing machine that adsorbs seeds through a nozzle port 9a having an opening 4, a ground wire E is extended from a part of the body of the pot sowing machine and grounded.

According to the second aspect of the present invention, in the pot sowing machine for adsorbing seeds through the nozzle opening 9a having the adsorption hole 54 at the tip, the earth wire E is extended from the nozzle opening 9a and grounded.

In a third aspect of the present invention, in a pot sowing machine for adsorbing seeds by means of a nozzle port 9a having a suction hole 54 at its tip, a ground wire E is attached from a nozzle body 9 integrally fixing the plurality of nozzle ports 9a. It is extended and grounded.

In a fourth aspect of the present invention, in a pot sowing machine for sucking and sowing seeds S in a seed dish by means of a nozzle port 9a having a suction hole 54 at the tip, an earth wire E is extended from the seed dish and grounded. It was made.

[0008]

[Operation] Next, the operation will be described. According to the first aspect, in the pot sowing machine that adsorbs seeds through the nozzle opening 9a having the adsorption hole 54 at the tip, the earth wire E is provided from a part of the machine body.
Since it has been extended and grounded, when sowing small seeds like a Turkish bellflower, when the seeds S are dropped by compressed air or pins after being adsorbed to the nozzle mouth 9a because the seeds are small and light It was possible to solve the problem that the seed S clung around the nozzle opening 9a due to static electricity and did not drop, resulting in a stock stall.

According to the second aspect, in the pot sowing machine for adsorbing seeds through the nozzle port 9a having the adsorption hole 54 at the tip, the earth wire E is extended from the nozzle port 9a and grounded. Since the static electricity is directly erased from the portion of the nozzle mouth 9a, which causes the stock loss when the seeds in the above state do not fall, the stock loss in the pot sowing can be reliably prevented.

According to the third aspect of the present invention, in the pot sowing machine for adsorbing seeds through the nozzle opening 9a having the adsorption hole 54 at the tip, the earth wire E is formed from the nozzle body 9 integrally fixing the plurality of nozzle openings 9a. Since I extended and grounded,
Since a large number of nozzle openings 9a are arranged for one unit, if the ground wire E is grounded for each nozzle opening 9a, the number of ground wires E will be large, but the nozzle body 9 having the nozzle openings 9a laid therein will have a large number. Since the nozzle body 9 and the nozzle opening 9a are electrically connected to each other by providing the ground wire E to the above, it is possible to obtain the same state as when the ground wire E is attached to all the nozzle openings 9a.

According to the fourth aspect of the present invention, in the pot sowing machine for sucking and sowing the seed S in the seed dish by the nozzle port 9a having the suction hole 54 at the tip, the ground wire E is extended from the seed dish. Since the seeds are grounded, the seeds are attracted to each other by static electricity inside the seed dish 1 to form an integral lump, which creates a gap between the seed mouth 1 and the nozzle opening 9a to deteriorate the attracted state, or the seed S. It was possible to solve the problem that the seeds were prevented from spreading widely in the seed dish 1.

[0012]

EXAMPLES Next, examples will be described. FIG. 1 is an overall side view of the pot sowing machine of the present invention, FIG. 2 is a side view of the adsorption nozzle N, the seed dish 1 and the seed guide pipe 3 of the pot sowing machine, and FIG. 3 is a view of the adjusting side plates 8L, 8R. FIG. 4 is a side view, FIG. 4 is an exploded perspective view of a portion of the seed dish 1, the suction nozzle N, and the seed guide pipe 3, and FIG. 5 is a perspective view of a disassembled state of a portion of the nozzle body 9 and the nozzle port 9a that constitute the suction nozzle N. 6 is a front cross-sectional view of the nozzle body 9 and the nozzle port 9a that form the suction nozzle N, and FIG. 7 is an enlarged cross-sectional view of the nozzle piston portion.
Is an enlarged cross-sectional view of a portion of the nozzle port 9a, and FIG. 9 is a pneumatic circuit diagram of the pot seeder of the present invention.

The overall construction of the pot sowing machine will be described with reference to FIGS. 1 and 2. The support frame 34 is placed on the support legs 41 with casters, bearings are supported by pulleys 39 and 42 at both front and rear ends of the support frame 34, and a belt is wound around the pulleys 39 and 42 to drive the drive motor 40. It is driven intermittently by. A pot seedling case 37 having a large number of pots is placed on the belt and is moved intermittently.

The side support plate 3 is attached to the support frame 34.
0,30 are supported. The side support plates 30, 30 are pivotally supported by a front pivot shaft 31 with respect to a support frame 34, and the rear vertical pivoting fixing bolt 33 is moved up and down within the elongated hole 32, whereby the side support plates 30 and 30 are moved. Angles of the portions 30 and 30 can be adjusted with respect to the support frame 34. Further, between the left and right side support plates 30, 30, the adjustment side plate 8L,
The seeding device supported on the 8R part is suspended by the left and right adjusting screws 29, 29 so that it can be adjusted up and down.

An adjusting handle 28 at the upper end of the adjusting screws 29, 29 is projected above the side supporting plates 30, 30, and the adjusting side plate 8 is rotated by rotating the left and right handles.
L and 8R move up and down, and the support scale body 26 fixed to the adjustment side plates 8L and 8R moves up and down. The portion of the bolt for fixing the support scale body 26 moves up and down in the elongated holes 35, 36 opened in the side surface support plates 30, 30. The tip of the support scale 26 points out the position of the scale of the scale 27, and the scale 27 is used to display the distance H between the lower end of the seed guide pipe 3 and the upper surface of the pot seedling case 37.

Next, referring to FIG. 4, the left and right adjusting side plates 8L,
The configuration of the seed dish 1, the suction nozzle N, the seed guide pipe 3 and the like supported by 8R will be described. Left and right adjustment side plates 8L, 8
The seed dish 1 is swingably moved back and forth between R by swing parallel links 10R, 11R, 10L, 11L.
The four swinging parallel links pivotally support the lower end, and pivotally support the lower support shafts 15 and 14 of the seed dish 1 at the upper end position. The upper ends of the swinging parallel links 10L and 10R pivotally support both ends of the support shaft 15 of the seed dish 1, and the swinging parallel links 11
The upper ends of L and 11R pivotally support both ends of the support shaft 14. The support shaft 15 is an arcuate elongated hole 8 of the adjusting side plates 8L and 8R.
It rotates inside c. The lower ends of the swinging parallel links 10L and 10R are pivotally supported by a pivot shaft 12, and the swinging parallel links 11L and 1
The lower end of 1R is pivotally supported on the pivot shaft 13.

The bracket 10 is attached to the swinging parallel link 10R.
a is provided, and the tip of the piston of the seed dish swinging cylinder 5 is pivotally connected. The other end of the seed dish swinging cylinder 5 is pivotally supported by a bracket 8a provided on the adjusting side plate 8R. Further, the support shafts 14 and 15 pass through and support the seed dish supports 19 and 20, and the seed dish 1 is mounted on the seed dish supports 19 and 20.
And the drop guide port 2 that is integrated is fixed. In addition, bolt holes 1a, 1a are formed on the lower surface of the seed dish 1,
A bifurcated diaphragm 4 bifurcated into the bolt holes 1a, 1a.
3 is fixed. With the branch diaphragm 43, the seed dish 1
The lower surface of the seed is vibrated so that the seeds are not biased.

On the seed dish 1, a suction nozzle N is supported between the adjusting side plates 8L and 8R. The suction nozzle N is composed of a nozzle body 9 and a plurality of nozzle openings 9a. There is one air passage inside the nozzle body 9, and only the tip is branched into a plurality of nozzle openings 9a. A compressed air pipe 38 is connected to the center of the nozzle body 9. The nozzle body 9 is fixed to the suction nozzle support rod 22, and both ends of the suction nozzle support rod 22 are fixed to the adjustment side plate 8.
It is possible to move up and down inside the locking elongated holes 25 formed in L and 8R. A locking step portion 25 'is provided at a position above the locking elongated hole 25, and the suction nozzle N is placed by placing a portion of the suction nozzle support rod 22 on the locking step portion 25'. The seed dish 1 can be removed by placing the seed plate 1 in the released state.

Further, a position adjusting screw 24 for regulating the position of the lower end of the suction nozzle support rod 22 is provided, and regulates the position of the lowermost end of the suction nozzle N. A downward urging spring 18 is urged on both sides of the suction nozzle support rod 22 so that the suction nozzle N is urged to be positioned at a position regulated by the position adjusting screw 24. Seed dish 1
By rotating the seed dish swinging cylinder 5 back and forth, the position between the inheritance guide port 4 and the nozzle port 9a is moved back and forth. Then, since the forward and backward movement of the seed dish 1 by the seed dish swinging cylinder 5 makes an arc motion, the seed placing surface 1b of the seed dish 1 rises below the nozzle opening 9a and approaches, and in this state, the compressed air pipe 38 Suction air from the nozzle port 9a
By making the tip of the negative pressure negative, the seed inside the seed dish 1 is adsorbed.

When the seed dish swinging cylinder 5 is contracted from the state where the seed is sucked by the nozzle mouth 9a, the nozzle mouth 9a and the seed placing surface 1b of the seed dish 1 are rotated so as to be farther from each other. The portion of the drop guide port 2 integrally formed with the front end portion of the seed dish 1 is located below the nozzle body 9. A part of the funnel portion of the drop guide port 2 is an opening, and the nozzle body 9 moves into the funnel part of the drop guide port 2 through the opening. A seed drop port is provided in the lower part of the funnel part, and the seed drops from the seed drop port to the long-hole funnel part of the inheritance guide port 4. A seed drop opening is opened in the lower part of the elongated funnel portion. A seed guide pipe 3 is communicated with the seed drop port.

The seed guide pipe 3 is made of an elastic body such as synthetic resin or rubber. And seed guide pipe 3
The lower end of is fixed to the lower end drop port 21. The lower end drop port 21 is supported by the holder 6. The holder 6
Is supported by the adjustment side plates 8L and 8R by a suspension rod 17 and a support rod 16. Therefore, by turning the adjusting handle 28 to adjust the adjusting screws 29, 29, the seed guide pipe 3
Since the holder 6 and the lower end drop port 21 also move up and down, the distance H between the lower end of the seed guide pipe 3 and the upper surface of the pot seedling case 37 can be adjusted.

Next, referring to FIG. 3, the position of the seed dish 1 and the procedure of sowing will be described. In FIG. 3, the seed dish swinging cylinder 5 is in an extended state, and the seed dish 1 is swinging to the left side of the drawing. Therefore, the seed dish 1 is at the highest position, and the nozzle mouth 9
The tip of a and the surface of the seed placement surface 1b are close to each other, and the seed S is easily adsorbed to the nozzle opening 9a. Next, the seed dish rocking cylinder 5 is slightly contracted, and the seed dish 1 starts moving to the right side of the drawing. In this state, the seed S is adsorbed on the tip of the nozzle port 9a. When the seed dish swinging cylinder 5 is further contracted, the nozzle body 9 is moved inside the drop guide port 2 at the end of the seed dish 1, and at this position, the suction negative pressure is released, and the compressed air is compressed. Nozzle mouth 9
When the seed S is pushed out from a, the seed S drops from the drop guide port 2 to the long-hole funnel portion of the inheritance guide port 4, and passes through the seed guide pipe 3 from the lower end drop port 21 to each pot of the pot seedling case 37. To fall.

Next, the structure of the suction nozzle N will be described with reference to FIGS. 5, 6 and 7. The suction nozzle N is composed of a nozzle port 9a, a nozzle body 9, a nozzle core manipulator 44, and the like. The interior of the nozzle body 9 is an elongated cavity 9c, and the nozzle core operation body 44 is vertically movable inside the elongated cavity 9c. The elongated cavity 9c is covered with the nozzle body lid 9b and fixed with bolts. The nozzle cylinder 45 is fixed at a substantially central position of the nozzle body 9 with an O-ring 51 interposed so as to be hermetically sealed. A nozzle piston 47 is fitted in a cylinder portion inside the nozzle cylinder 45.

Nozzle piston 47 and nozzle cylinder 4
An O-ring 50 is wound between 5 and 5 to improve the airtightness. Further, a valve seat is formed on the upper surface of the nozzle piston 47, and the nozzle packing 46 is placed on this portion. A pore 66 is opened at the center of the nozzle packing 46. A nozzle cap 49 that limits the rising distance of the nozzle packing 46 and closes the upper portion of the nozzle cylinder 45 is screwed, and a collective joint 48 is screwed to the nozzle cap 49. Negative and positive pressure air is supplied to the collective joint 48 from the compressed air pipe 38.

On the lower surface of the nozzle body 9, the nozzle port 9
A plurality of screw holes corresponding to the number a are provided, and the nozzle port 9a is screwed from below. The nozzle opening 9a has a suction hole 54 formed at the tip thereof, and a cylindrical hole 9d into which the nozzle core 52 is fitted is formed therein. The nozzle opening 9a and the suction hole 54 communicate with each other, and the notch 5 is formed inside the nozzle opening 9a.
5, a nozzle core 52 that is vertically movable is fitted. A nozzle needle 53 is integrally projectingly provided at the tip of the nozzle core 52, and the nozzle needle 53 can project from the suction hole 54 by a projecting width a shown in FIG. Further, when the seed is adsorbed, as shown in FIG. 8, it is configured to be retracted from the tip of the adsorption hole 54 by a distance b.

Since the notch 55 is provided between the cylindrical hole 9d and the nozzle core 52, negative pressure / positive pressure air can flow in and out. Further, the diameter of the nozzle needle 53 is equal to the suction hole 54.
Since the diameter is smaller than the diameter of and the gap is formed between the two, positive pressure / negative pressure air can pass through this gap. Further, the upper end of the nozzle opening 9a has an elongated cavity 9c.
The part that protrudes inside the is configured as a spring receiving part,
An upper biasing spring 56 is interposed between the spring receiver and the flange portion 67 at the upper end of the nozzle core 52. The upper urging spring 56 allows the nozzle core manipulator 44 to be operated during seed adsorption.
Is pushed back to retract the nozzle needle 53 from the suction hole 54.

When seeds are adsorbed, the nozzle switching valve 61 shown in FIG. 9 is switched to the adsorption side, and the ejector 65 is
The negative pressure generated by is applied to the nozzle piston 47 from the compressed air pipe 38 via the collective joint 48.
As a result, the nozzle packing 46 floats up, the force for pushing the nozzle piston 47 disappears, and the nozzle core operating body 4 pushed down by the nozzle piston 47 is lowered.
4 is pushed up by the total force of the upper biasing springs 56. Therefore, the nozzle core 52 rises and the nozzle needle 53 retracts by the distance b. As a result, a negative pressure is generated in the adsorption hole 54 portion to adsorb the seed.

Next, when dropping the adsorbed seeds,
The nozzle switching valve 61 is switched to the falling side. As a result, from the state in which the negative pressure on the ejector 65 side has been supplied until then, the positive pressure on the compressor C side is supplied via the divider 62. As a result, a positive pressure is applied to the nozzle packing 46 from the compressed air pipe 38 via the collective joint 48, the nozzle packing 46 is closed, and the nozzle piston 47 is pressed. When the nozzle piston 47 is pressed downward, the pressing portion 69 of the nozzle piston 47 presses the upper surface of the nozzle core operating body 44 and resists the upper biasing spring 56 to lower the nozzle core operating body 44. As the nozzle core manipulating body 44 descends, the nozzle core 52 descends, and the nozzle needle 53 at the tip projects from the suction hole 54 by the distance a. Also in this case, positive pressure is discharged from the fine holes 66 of the nozzle packing 46 into the inside of the elongated cavity 9c through the air holes 68 below, and the compressed air is generated between the suction holes 54 and the nozzle needles 53. It serves to forcefully blow off the seeds that have been adsorbed and adsorbed.

Next, referring to FIG. 9, a pneumatic circuit diagram will be described. Compressed air from the compressor C is supplied to the ejector 65, the nozzle switching valve 61, and the seed dish operation valve 58 via the divider 62. A pressure gauge 63 and a regulator 64 are interposed between the divider 62 and the ejector 65. The ejector 65 is a mechanism that generates negative pressure by passing compressed air. Further, the compressed air supplied from the divider 62 to the seed dish operating valve 58 is transmitted through the speed controllers 59 and 60 to the seed dish swinging cylinder 5
Is being supplied to.

In the overall construction of the pot sowing machine as described above, in the present invention, the static electricity generated in each part of the body of the pot sowing machine causes the seeds S to come in contact with each other or the nozzle opening
The ground wire E is provided in order to eliminate static electricity from the various parts of the machine body because it makes the distance between a and the seed S worse and causes the stock stall. The most adverse effect of static electricity is the lack of seeds that occurs when the seed S does not separate even if the negative pressure is released from the state of being adsorbed to the nozzle mouth 9a. Ground wire E
Are connected. Further, when the seeds S retained inside the seed dish 1 are adsorbed to each other and one grain is adsorbed, 2 to 3 grains are adsorbed, resulting in excessive seeding or a gap is formed in the adsorption hole 54. Since the seeds 1 will be out of stock due to the non-adsorption of the seeds, the ground wire E is also grounded to eliminate static electricity from the seed dish 1.

[0031]

Since the present invention is configured as described above, it has the following effects. In the pot sowing machine for adsorbing seeds by the nozzle port 9a having the adsorbing hole 54 at the tip thereof as described in claim 1, since the ground wire E is extended from a part of the machine body to be grounded, as in the case of Turkish bellflower, When sowing seeds, the nozzle mouth 9
When the seeds S are dropped by compressed air or pins after being adsorbed by a, static electricity is generated and the seeds S cling to the periphery of the nozzle opening 9a and do not drop, which eliminates the problem of stock stalls. I was able to do it.

In a pot sowing machine for adsorbing seeds by means of a nozzle port 9a having an adsorption hole 54 at its tip as in claim 2, the earth wire E is extended from the nozzle port 9a and grounded, so that it is particularly adsorbed. Since the static electricity is directly erased from the portion of the nozzle port 9a, which causes the lack of seeds when the seeds in the state do not fall, it is possible to reliably prevent the lack of seeds in pot sowing.

In a pot sowing machine for adsorbing seeds by means of a nozzle port 9a having an adsorption hole 54 at its tip, a ground wire E is attached from a nozzle body 9 integrally fixing the plurality of nozzle ports 9a. Since they are extended and grounded, a large number of nozzle openings 9a are arranged for one unit,
Since the ground wire E is grounded for each nozzle opening 9a, the number of ground wires E is large. However, by providing the ground wire E on the nozzle body 9 on which the nozzle opening 9a is laid, the nozzle body 9 and the nozzle Since the openings 9a are electrically connected to each other, it is possible to obtain the same status as when all the nozzle openings 9a are provided with the ground wire E.

In the pot sowing machine for sucking and sowing the seed S in the seed dish through the nozzle opening 9a having the suction hole 54 at the tip, the earth wire E is extended from the seed dish and grounded. As a result, the seeds are attracted to each other by static electricity inside the seed dish 1 to form an integral lump, which forms a gap between the seed mouth 1 and the nozzle opening 9a to deteriorate the adsorption state, or the seed S It was possible to solve the problem that the shallow spread of the seed dish 1 was prevented.

[Brief description of drawings]

FIG. 1 is an overall side view of a pot seeder of the present invention.

FIG. 2 is a side view of the suction nozzle N, the seed dish 1, and the seed guide pipe 3 of the pot sowing machine.

FIG. 3 is a side view of the adjustment side plates 8L and 8R.

FIG. 4 is an exploded perspective view of a portion of a seed dish 1, a suction nozzle N, and a seed guide pipe 3.

FIG. 5 is a perspective view showing a disassembled state of a nozzle main body 9 and a nozzle port 9a which form a suction nozzle N.

FIG. 6 is a front cross-sectional view of a nozzle body 9 and a nozzle port 9a forming a suction nozzle N.

FIG. 7 is an enlarged sectional view of a nozzle piston portion.

FIG. 8 is an enlarged sectional view of a portion of a nozzle port 9a.

FIG. 9 is a pneumatic circuit diagram of the pot seeder of the present invention.

[Explanation of symbols]

 E Earth wire N Suction nozzle S Seed 1 Seed dish 9 Nozzle body 9a Nozzle mouth 52 Nozzle core 53 Nozzle needle 54 Suction hole

Claims (4)

[Claims] 1. A nozzle port 9 having a suction hole 54 at its tip.
In the pot sowing machine for adsorbing seeds by a, the pot sowing machine is characterized in that a ground wire E is extended from a part of the body of the pot sowing machine to be grounded. 2. A nozzle port 9 having a suction hole 54 at its tip.
A pot sowing machine for adsorbing seeds by means of a, wherein a ground wire E is extended from the nozzle opening 9a and grounded. 3. A nozzle port 9 having a suction hole 54 at its tip.
In the pot sowing machine for adsorbing seeds by a, the pot sowing machine is characterized in that the earth wire E is extended from the nozzle body 9 integrally fixing the plurality of nozzle openings 9a and grounded. 4. A nozzle port 9 having a suction hole 54 at its tip.
The pot sowing machine for sucking and sowing the seed S in the seed dish according to a, wherein the ground wire E is extended from the seed dish and grounded.