JPH0928120A - Seed supply mechanism of seed gel coating device - Google Patents
Seed supply mechanism of seed gel coating deviceInfo
- Publication number
- JPH0928120A JPH0928120A JP18588795A JP18588795A JPH0928120A JP H0928120 A JPH0928120 A JP H0928120A JP 18588795 A JP18588795 A JP 18588795A JP 18588795 A JP18588795 A JP 18588795A JP H0928120 A JPH0928120 A JP H0928120A
- Authority
- JP
- Japan
- Prior art keywords
- seed
- supply mechanism
- suction tip
- nozzle
- suction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011248 coating agent Substances 0.000 title claims description 30
- 238000000576 coating method Methods 0.000 title claims description 24
- 238000005520 cutting process Methods 0.000 claims description 13
- 108010025899 gelatin film Proteins 0.000 claims description 11
- 238000005553 drilling Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 10
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 2
- 239000003349 gelling agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012213 gelatinous substance Substances 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pretreatment Of Seeds And Plants (AREA)
- Manipulator (AREA)
Abstract
(57)【要約】
【課題】 吸引チップに微細な種子吸引孔をドリル加工
することが困難である。
【解決手段】 吸引チプ３１の下端壁３１ａに、微細な
径のドリル加工が可能になる薄肉部３６を設ける。この
薄肉部３６は、下端壁３１ａの内壁面に設ける円錐形の
凹部３５によって形成するとよい。
(57) [Abstract] [PROBLEMS] It is difficult to drill a fine seed suction hole in a suction tip. SOLUTION: A lower wall 31a of a suction chip 31 is provided with a thin portion 36 that enables drilling with a fine diameter. The thin portion 36 may be formed by a conical recess 35 provided on the inner wall surface of the lower end wall 31a.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ゲル被覆種子を作
成する種子のゲル被覆加工装置を構成する１ユニットで
ある種子供給機構の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a seed supply mechanism, which is one unit constituting a seed gel-coating processing apparatus for producing gel-covered seeds.
【０００２】[0002]
【従来の技術】従来、種子はコーティングされないまま
播種されるのが一般的であるが、種子を動物の食害から
保護し、種子を播種する前に殺菌，発芽促進処理などの
予備処理を行うために種子を被覆するコーティング種子
がある。従来のコーティング種子としては、粘度や微砂
又はそれに糖類を混合したＣＭＣ等のバインダーを吹き
付けて種子表面に貼着させるものであり、被覆剤中に殺
菌剤，酸素発生剤などを添加する場合もある。これらは
比較的硬質の被覆の場合であるが、種子を、含水するこ
とにより膨潤するゲルやゼラチン状のものでコーティン
グする軟質の被覆もある。2. Description of the Related Art Conventionally, seeds are generally sown without being coated, but in order to protect the seeds from animal feeding damage and to carry out pretreatment such as sterilization and germination promotion treatment before sowing the seeds. There is a coated seed that coats the seed. As a conventional coated seed, a binder such as CMC or the like in which viscosity, fine sand or sugar is mixed is sprayed and attached to the seed surface, and even when a bactericidal agent, an oxygen generating agent or the like is added to the coating agent. is there. These are comparatively hard coatings, but there are also soft coatings in which the seeds are coated with a gel or gelatinous substance that swells when it contains water.
【０００３】然し、従来のコーティング技術において
は、表層のみを硬化させる水性ゲルを用いて種子をコー
ティングする例は見られなかった。かかる目的から、膜
状に形成されたゲルの上に種子を落下供給して種子をゲ
ル膜で被覆し、大径球状化する種子のゲル被覆加工装置
が開発されている（実開平５−７０１５号，実開平５−
７０１６号などの公報参照）。However, in the conventional coating technology, no example has been found of coating seeds with an aqueous gel that cures only the surface layer. For this purpose, a seed gel coating apparatus has been developed in which the seed is dropped and supplied onto a gel formed in a film shape to coat the seed with a gel film to make the seed into a large-diameter sphere (Actual Kaihei 5-7015). No., Actual Kaihei 5-
7016, etc.).
【０００４】図５は種子のゲル被覆加工装置の従来例を
示す要部正面図であり、支柱１の上端に固着された載置
台２の上面に、エア駆動型のロータリアクチュエータで
ある回転駆動装置３がねじ４により締着される。回転駆
動装置３は、空圧により出力軸３ａが１８０度の範囲を
往復回動並びに停止する。出力軸３ａには、回転アーム
５の中央に設けられた円筒状の回転軸６が連結される。FIG. 5 is a front view of an essential part of a conventional example of a seed gel coating apparatus, in which a rotary drive device, which is an air-driven rotary actuator, is mounted on the upper surface of a mounting table 2 fixed to the upper end of a column 1. 3 is fastened with screws 4. In the rotary drive device 3, the output shaft 3a reciprocally rotates and stops within a range of 180 degrees by pneumatic pressure. A cylindrical rotary shaft 6 provided at the center of the rotary arm 5 is connected to the output shaft 3a.
【０００５】回転アーム５の両端に設けられた孔にノズ
ルアジャスタ７が挿入され、ノズルアジャスタ７の外周
面に設けられた雄ねじ７ａに螺合する２つのナット８に
より、ノズルアジャスタ７が回転アーム５の両端に固着
される。ノズルアジャスタ７の上端部に螺設された雌ね
じ７ｂに、管継手９がねじ込まれ（図６参照）、管継手
９に接続する可撓性の管路（チューブ）１０は、電磁弁
（図示しない）を介して空圧源及び負圧源（図示しな
い）に連通する（図５図参照）。The nozzle adjuster 7 is inserted into holes provided at both ends of the rotary arm 5, and the nozzle adjuster 7 is rotated by the two nuts 8 screwed onto the male screw 7a provided on the outer peripheral surface of the nozzle adjuster 7. Fixed to both ends of. The pipe joint 9 is screwed into the female screw 7b screwed on the upper end portion of the nozzle adjuster 7 (see FIG. 6), and the flexible pipe line (tube) 10 connected to the pipe joint 9 includes a solenoid valve (not shown). ) To communicate with an air pressure source and a negative pressure source (not shown) (see FIG. 5).
【０００６】ノズルアジャスタ７の下端に延設される小
径の筒部１１に、合成樹脂材より成る吸引チップ１２が
着脱自在に嵌着される。吸引チップ１２は、下端に向か
って小径となるテーパを有する筒状に形成され、吸引チ
ップ１２を小径の筒部１１の外周面に押し付けると、吸
引チップ１２が弾性変形を伴って小径の筒部１１に嵌着
される（図５図，図６参照）。以上述べた回転駆動装置
３，回転アーム５，ノズルアジャスタ７，可撓性の管路
１０及び吸引チップ１２により種子供給機構Ａが構成さ
れる。A suction tip 12 made of a synthetic resin material is detachably fitted to a small-diameter cylindrical portion 11 extending at the lower end of the nozzle adjuster 7. The suction tip 12 is formed in a tubular shape having a taper that becomes smaller in diameter toward the lower end, and when the suction tip 12 is pressed against the outer peripheral surface of the small-diameter cylindrical portion 11, the suction tip 12 is elastically deformed and has a small-diameter cylindrical portion. 11 is fitted (see FIGS. 5 and 6). A seed supply mechanism A is configured by the rotary drive device 3, the rotary arm 5, the nozzle adjuster 7, the flexible conduit 10 and the suction tip 12 described above.
【０００７】支柱１の一側（図５において左側）に摺動
案内部材１３がねじ止めされ、摺動案内部材１３に沿っ
て上下方向に移動可能な昇降部材（図示しない）の端部
に、上部が開口し内部に多数の種子が収容される種子容
器１４が取付けられ、昇降部材を上下に駆動するエアシ
リンダ（図示しない）により種子容器１４が昇降する。
支柱１の他側（図５において右側）に、図７に示す加工
ノズルＢが取付けられる。A slide guide member 13 is screwed to one side (left side in FIG. 5) of the support column 1 and is attached to an end portion of an elevating member (not shown) movable in the vertical direction along the slide guide member 13. A seed container 14 having an open upper portion and containing a large number of seeds is attached, and the seed container 14 is moved up and down by an air cylinder (not shown) that drives an elevating member up and down.
The processing nozzle B shown in FIG. 7 is attached to the other side (right side in FIG. 5) of the column 1.
【０００８】加工ノズルＢは、ほぼ直方体のバルブ本体
１５の内部に被覆剤の収容室１６が形成され、収容室１
６はバルブ本体１５の下端面の開口１７につながる。開
口１７は、被覆剤タンク（図示しない）に連通する管路
（図示しない）が取り付けられ、開口１７と被覆剤の収
容室１６との間には、鋼球１８ａとばね１８ｂによって
構成される逆止弁１８が設けられる。被覆剤の収容室１
６に充填されるゲル化剤は加圧プランジャ（図示しな
い）によって加圧，減圧される。In the processing nozzle B, a coating chamber 16 is formed inside a valve body 15 having a substantially rectangular parallelepiped shape.
6 is connected to the opening 17 at the lower end surface of the valve body 15. A pipe line (not shown) communicating with a coating agent tank (not shown) is attached to the opening 17, and a reverse side formed by a steel ball 18a and a spring 18b is provided between the opening 17 and the coating material storage chamber 16. A stop valve 18 is provided. Covering agent storage chamber 1
The gelling agent filled in 6 is pressurized and depressurized by a pressure plunger (not shown).
【０００９】バルブ本体１５の左側面にバルブケース２
０が取り付けられ、バルブケース２０を上下方向に貫通
するプランジャ挿入孔２１の下端に弁座２１ａが形成さ
れ、プランジャ挿入孔２１の内面にブッシュ２２が嵌着
され、ブッシュ２２の内面に中空のノズルプランジャ２
３が昇降可能に挿入される。ノズルプランジャ２３の下
半部の外周面を小径にすることにより受圧面２４が形成
される。プランジャ挿入孔２１と被覆剤の収容室１６と
を連通する被覆剤流路２５が設けられ、被覆材タンク
（図示しない）内の被覆剤（ゲル化剤）が開口１７，逆
止弁１８を経由して被覆剤の収容室１６に補給され、更
に、被覆剤流路２５，プランジャ挿入孔２１に充填され
ている。The valve case 2 is provided on the left side surface of the valve body 15.
0 is attached, a valve seat 21a is formed at the lower end of a plunger insertion hole 21 penetrating the valve case 20 in the vertical direction, a bush 22 is fitted on the inner surface of the plunger insertion hole 21, and a hollow nozzle is formed on the inner surface of the bush 22. Plunger 2
3 is inserted so that it can move up and down. The pressure receiving surface 24 is formed by reducing the diameter of the outer peripheral surface of the lower half portion of the nozzle plunger 23. A coating material flow path 25 that connects the plunger insertion hole 21 and the coating material storage chamber 16 is provided, and the coating material (gelling agent) in the coating material tank (not shown) passes through the opening 17 and the check valve 18. Then, it is replenished in the coating material storage chamber 16 and further filled in the coating material flow path 25 and the plunger insertion hole 21.
【００１０】バルブケース２０の上面には、プランジャ
挿入孔２１を取り巻く円筒部２６が設けられ、円筒部２
６の外周面に螺設された雄ねじにスプリングアジャスタ
２７の内面に設けられた雌ねじが螺合する。ノズルプラ
ンジャ２３の上にはスプリング受け２８が載置され、ス
プリング受け２８とスプリングアジャスタ２７との間に
スプリング２９が挿入される。A cylindrical portion 26 surrounding the plunger insertion hole 21 is provided on the upper surface of the valve case 20.
A female screw provided on the inner surface of the spring adjuster 27 is engaged with a male screw provided on the outer peripheral surface of the spring 6. A spring receiver 28 is placed on the nozzle plunger 23, and a spring 29 is inserted between the spring receiver 28 and the spring adjuster 27.
【００１１】以上のように構成された加工ノズルＢによ
るゲル膜形成動作を、種子供給機構Ａ及び種子容器１６
との動作と関連して説明すると、下方に付勢されている
ノズルプランジャ２３の下端部は、弁座２１ａを閉鎖し
ているが、加圧プランジャが被覆剤の収容室１６内の被
覆剤を昇圧すると、被覆剤流路２５を経由して受圧面２
４が押圧され、ノズルプランジャ２３が上昇して開弁
し、ノズルプランジャ２３の下端より流出した被覆剤が
ゲル膜を形成する。The gel film forming operation by the processing nozzle B configured as described above is performed by the seed supply mechanism A and the seed container 16
The lower end of the nozzle plunger 23, which is biased downward, closes the valve seat 21a, but the pressurizing plunger prevents the coating agent in the storage chamber 16 of the coating agent. When the pressure is increased, the pressure receiving surface 2 passes through the coating agent flow path 25.
4, the nozzle plunger 23 rises to open the valve, and the coating agent flowing out from the lower end of the nozzle plunger 23 forms a gel film.
【００１２】加圧プランジャが後退して被覆剤の収容室
１６が減圧されると、スプリング２９に押圧されている
ノズルプランジャ２３が下降して閉弁すると共に、逆止
弁１８から被覆剤が補充される。ノズルプランジャ２３
が下降して閉弁すると、被覆剤の吐出が停止するが、ノ
ズルプランジャ２３の下方に形成されていたゲル膜が自
重により次第に垂れ下がる。When the pressurizing plunger retracts and the pressure of the coating agent accommodating chamber 16 is reduced, the nozzle plunger 23 pressed by the spring 29 descends and closes, and the check valve 18 replenishes the coating agent. To be done. Nozzle plunger 23
When is lowered and the valve is closed, the discharge of the coating material is stopped, but the gel film formed below the nozzle plunger 23 gradually hangs down due to its own weight.
【００１３】一方、種子容器１４が上昇し、負圧が供給
されている吸引チップ１２が種子容器１４の多数の種子
の中に挿入され、吸引チップ１２が種子を吸引した後
に、種子容器１４が下降し、次に、回転アーム５が１８
０度回転し、種子を吸引した吸引チップ１２が加工ノズ
ルＢの上方に位置され、吸引チップ１２に空圧が供給さ
れて種子がゲル膜に落下，供給される。落下，供給され
た種子は垂れ下がるゲル膜に包まれ、次の開弁によって
補充されたゲルが垂れ下がったゲル膜の上部に供給さ
れ、種子がゲル膜に被覆される。次に閉弁すると、重量
を支え切れないゲル膜が下方に落下し、表面張力によっ
て球形化しながら下方の硬化槽（図示しない）に供給さ
れ、硬化槽内の硬化剤で表面を硬化された後に、水洗槽
に送られて硬化剤が除去される。On the other hand, the seed container 14 rises, the suction tip 12 to which a negative pressure is supplied is inserted into a large number of seeds in the seed container 14, and after the suction tip 12 sucks the seed, the seed container 14 is And then the rotary arm 5 moves to 18
The suction tip 12 that rotates 0 degrees and sucks the seed is positioned above the processing nozzle B, and pneumatic pressure is supplied to the suction tip 12 so that the seed falls and is supplied to the gel film. The seeds dropped and supplied are wrapped in a hanging gel film, and the gel supplemented by the next valve opening is supplied to the upper part of the hanging gel film, so that the seeds are covered with the gel film. Next, when the valve is closed, the gel film that cannot support the weight falls downward, and while being spherical due to surface tension, it is supplied to the lower curing tank (not shown) and after the surface is cured by the curing agent in the curing tank. Then, it is sent to a washing tank to remove the curing agent.
【００１４】以上述べた種子供給機構では、吸引チップ
１２に負圧が供給されたときに、吸引チップ１２の下端
に１粒の種子だけが吸引されるようにするため、種子の
大きさに応じた最適の孔径を有する吸引チップ１２に取
替る。然し、図６に示すような従来の吸引チップ１２で
は、孔径を小さくすることに限度があり、微小な種子を
吸引することができないので、図３及び図４に示すよう
に、微小な孔径の吸引孔３０を穿設した吸引チップ３１
をノズルアジャスタ７′に取付ける方法が考えられる。In the seed supply mechanism described above, when a negative pressure is supplied to the suction tip 12, only one seed is sucked at the lower end of the suction tip 12, so that the size of the seed is changed. The suction tip 12 having the optimum hole diameter is replaced. However, in the conventional suction tip 12 as shown in FIG. 6, there is a limit in reducing the hole diameter, and it is not possible to suck minute seeds. Therefore, as shown in FIG. 3 and FIG. Suction tip 31 having a suction hole 30
It is conceivable that the nozzle adjuster 7'is attached.
【００１５】ノズルアジャスタ７′は、先端にテーパ状
の小径部３２を形成したもので、吸引チップ３１は、下
端壁３１ａに周壁３１ｂを周設し、下端壁３１ａに小径
の吸引孔３０を穿設したものである。吸引チップ３１の
取付け方法には、周壁３１ｂの内壁面をテーパ状に形成
し、吸引チップ３１の内壁面をノズルアジャスタ７′の
下端に嵌着する（図３参照）固定方法と、テーパ状の内
壁面に螺設した雌ねじ３３を、テーパ状の小径部３２に
螺設した雄ねじ３４に螺合する固定方法がある。The nozzle adjuster 7'has a tapered small diameter portion 32 formed at its tip. The suction tip 31 has a lower wall 31a provided with a peripheral wall 31b and a lower end wall 31a having a small diameter suction hole 30 formed therein. It was set up. The suction tip 31 can be attached by fixing the inner wall surface of the peripheral wall 31b to a taper shape and fitting the inner wall surface of the suction tip 31 to the lower end of the nozzle adjuster 7 '(see FIG. 3). There is a fixing method in which a female screw 33 screwed on the inner wall surface is screwed with a male screw 34 screwed on the tapered small diameter portion 32.
【００１６】[0016]
【発明が解決しようとする課題】下端壁３１ａに吸引孔
３０をドリル加工すれば、吸引チップ１２の内径よりも
小さな孔が得られるが、極めて小さい種子を１粒だけ吸
引するには、吸引孔３０の孔径を０.1〜０.2mm程度に加
工しなければならず、このような微細な孔はドリル加工
では極めて困難な問題がある。０.1〜０.2mmの孔は、放
電加工することができるが、微細な径の電極が必要にな
り、且つ消耗度が激しいので、吸引チップ３１の製作費
が高価になる欠点がある。本発明はかかる課題を解決す
ることを目的としており、微細な種子を１粒だけ吸引す
ることができる微細な孔を安価に製作できる吸引チップ
３１を提供するものである。When the suction hole 30 is drilled in the lower end wall 31a, a hole smaller than the inner diameter of the suction tip 12 can be obtained. However, in order to suck only one very small seed, the suction hole is required. The hole diameter of 30 must be processed to about 0.1 to 0.2 mm, and such a minute hole has a very difficult problem in drilling. The hole of 0.1 to 0.2 mm can be subjected to electric discharge machining, but since it requires an electrode having a fine diameter and is highly consumed, it has a drawback that the manufacturing cost of the suction tip 31 becomes expensive. An object of the present invention is to solve such a problem, and to provide a suction tip 31 capable of inexpensively producing a fine hole capable of sucking only one fine seed grain.
【００１７】[0017]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、ノズルアジャスタの先端に、種子吸引孔
を穿設した吸引チップを着脱自在に嵌着し、該吸引チッ
プにより種子容器内の種子を吸引し、吸引した種子を加
工ノズルに形成されるゲル膜に供給する種子のゲル被覆
加工装置の種子供給機構において、上記吸引チップは、
下端壁の一部に薄肉部を形成し、該薄肉部に微小径のド
リルにより上記種子吸引孔を穿設することを特徴とする
ものである。この薄肉部は、上記下端壁の内壁面に、微
小径のドリルの刃先の案内面となる円錐形の凹部を設け
ることにより形成するとよい。In order to achieve the above object, the present invention has a nozzle adjuster in which a suction tip having a seed suction hole is detachably fitted to the tip of a nozzle adjuster, and the suction tip is used to dispose a seed container. In the seed supply mechanism of the gel coating processing apparatus for seeds, which sucks the seeds in and supplies the sucked seeds to the gel film formed in the processing nozzle, the suction tip is
It is characterized in that a thin-walled portion is formed in a part of the lower end wall, and the seed suction hole is bored in the thin-walled portion with a drill having a small diameter. This thin portion may be formed by providing a conical concave portion on the inner wall surface of the lower end wall, which serves as a guide surface for the cutting edge of a small diameter drill.
【００１８】本発明の吸引チップは、下端壁の一部に薄
肉部を形成し、その薄肉部をドリル加工するので、ドリ
ルに加わる切削抵抗が極めて小さくなり、下端壁は中央
部のみが薄肉となっているので切削中の振動が起きにく
い形状であり、円錐形の凹部はドリル先端の案内になる
ので切削開始時の動揺やスライドを防止する効果があ
り、微小径のドリルの折損を防止することができる。か
くして、吸引チップに微細な孔のドリル加工が可能にな
り、吸引チップは、微細な種子を１粒だけ吸引すること
ができる。In the suction tip of the present invention, since a thin portion is formed on a part of the lower end wall and the thin portion is drilled, the cutting resistance applied to the drill becomes extremely small, and the lower end wall is thin only in the central portion. Since it has a shape that does not cause vibration during cutting, the conical recess serves as a guide for the drill tip, so it has the effect of preventing shaking and sliding at the start of cutting, and prevents breakage of a small diameter drill. be able to. Thus, it becomes possible to drill a fine hole in the suction tip, and the suction tip can suck only one fine seed.
【００１９】[0019]
【発明の実施の形態】本発明の種子のゲル被覆加工装置
の種子供給機構は、上記の従来例の種子供給機構を部分
的に改善するものであり、種子供給機構のなかの大部分
の部品は従来例と同様であるので、従来例と同一符号を
付してその詳細説明を省略する。本発明の実施の形態の
具体例について図面を参照して説明すると、図１は種子
のゲル被覆加工装置の種子供給機構Ａ1 の正面図であ
り、図２は図１の部分拡大図である。回転駆動装置３に
より回転アーム５が１８０度往復回転することは従来例
と同様である。BEST MODE FOR CARRYING OUT THE INVENTION The seed supply mechanism of the seed gel coating apparatus of the present invention is a partial improvement of the seed supply mechanism of the above-mentioned conventional example, and most of the parts of the seed supply mechanism. Since this is the same as the conventional example, the same reference numerals as those of the conventional example are given and the detailed description thereof is omitted. A specific example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a seed supply mechanism A 1 of a seed gel coating processing apparatus, and FIG. 2 is a partially enlarged view of FIG. . It is the same as in the conventional example that the rotary arm 5 is reciprocally rotated by 180 degrees by the rotary drive device 3.
【００２０】回転アーム５の両端に取付けられるノズル
アジャスタ７′は、２個のナット９の締め付けで固定さ
れ、ノズルアジャスタ７′の上端に接続する管路１０が
電磁弁を介して空圧源及び負圧源に連通することは従来
例と同様であるが、ノズルアジャスタ７′の下端面にテ
ーパ状の小径部３２が形成される（図２参照）。吸引チ
ップ３１は、例えばプラスティック材のように、弾性を
有する材料から形成され、下端壁３１ａと、下端壁３１
ａに周設される周壁３１ｂとを有し、周壁３１ｂを小径
部３２に弾性的に嵌着する。或いは、図４に示すよう
に、周壁３１ｂの内面に設けた雌ねじ３３を、小径部３
２に設けた雄ねじ３４に螺合する。Nozzle adjusters 7'mounted on both ends of the rotary arm 5 are fixed by tightening two nuts 9, and a pipe line 10 connected to the upper end of the nozzle adjuster 7'is connected to an air pressure source and an air pressure source via a solenoid valve. Although communicating with the negative pressure source is similar to the conventional example, a tapered small diameter portion 32 is formed on the lower end surface of the nozzle adjuster 7 '(see FIG. 2). The suction tip 31 is formed of an elastic material such as a plastic material, and has a lower end wall 31a and a lower end wall 31.
A peripheral wall 31b is provided around a, and the peripheral wall 31b is elastically fitted to the small diameter portion 32. Alternatively, as shown in FIG. 4, the female screw 33 provided on the inner surface of the peripheral wall 31b is attached to the small diameter portion 3
It is screwed onto the male screw 34 provided on the No. 2.
【００２１】微小径のドリルの折損の原因には、 イ）切削中に切削抵抗が大きくなる場合 ロ）回転するドリル刃先に芯振れがある場合 ハ）被切削物が振動し易い場合 ニ）ドリル刃先が被切削物を切削し始めるときに、ドリ
ル刃先が横にスライドし易く、スライドしたときにドリ
ル刃先に無理がかかる場合 などがあり、本発明では、これらの課題を次のようにし
て解決した。The causes of breakage of a small-diameter drill are: a) When cutting resistance increases during cutting b) When there is runout at the rotating drill cutting edge c) When the work piece easily vibrates d) Drill When the cutting edge begins to cut the work piece, the drill cutting edge easily slides laterally, and there are cases where the drill cutting edge is overloaded when it slides.In the present invention, these problems are solved as follows. did.
【００２２】下端壁３１ａの内壁面のほぼ中央に、比較
的に大径のドリルの先端で円錐形の凹部３５を加工する
と、凹部３５の底面により、小径のドリル加工が可能に
なる薄肉部３６が形成される。下端壁３１ａは、ほぼ中
央部のみが薄肉であり、周縁部に向かって次第に厚肉と
なるので、下端壁３１ａの強度並びに剛性は保たれる。
従って、下端壁３１ａ全体が薄肉に形成された場合に比
較して、ドリル加工時に、振動が発生し難い利点があ
る。When a conical recess 35 is machined in the center of the inner wall surface of the lower end wall 31a with the tip of a relatively large-diameter drill, the bottom surface of the recess 35 enables a small-diameter portion 36 to be drilled. Is formed. Since the lower end wall 31a is thin only in the substantially central portion and gradually becomes thicker toward the peripheral portion, the strength and rigidity of the lower end wall 31a are maintained.
Therefore, compared with the case where the entire lower end wall 31a is formed thin, there is an advantage that vibration is less likely to occur during drilling.
【００２３】本発明は、下端壁３１ａの内側から、円錐
形の凹部３５の底を、微小径のドリルで孔加工すると、
薄肉部３６の厚さ寸法が小さいので、ドリルの切削抵抗
を極めて小さくすることができ、０.1〜０.2mm程度の大
きさの種子吸引孔３７を加工することができる。又、円
錐形の凹部３５は、小径のドリルの刃先の動揺やスライ
ドを防止する案内面となるので、切削開始時のドリルの
折損を防止する効果がある。According to the present invention, when the bottom of the conical concave portion 35 is bored from the inside of the lower end wall 31a with a small diameter drill,
Since the thickness of the thin portion 36 is small, the cutting resistance of the drill can be made extremely small, and the seed suction hole 37 having a size of about 0.1 to 0.2 mm can be processed. Further, the conical recess 35 serves as a guide surface for preventing the blade tip of a small-diameter drill from swaying and sliding, and therefore has the effect of preventing breakage of the drill at the start of cutting.
【００２４】[0024]
【発明の効果】本発明は以上のように構成されているの
で、吸引チップの下端壁の一部に形成された薄肉部をド
リル加工することにより、微細な径のドリルを折損する
ことなく微細な孔を加工することが可能になった。この
薄肉部を、円錐形の凹部によって形成すると、微細なド
リルの折損防止効果を更に高めることができた。かくし
て、小さな種子を１粒だけ吸引できる微細な種子吸引孔
を備えた吸引チップを安価に製作することが可能になっ
た。EFFECTS OF THE INVENTION Since the present invention is constructed as described above, by drilling a thin portion formed on a part of the lower end wall of the suction tip, it is possible to make a fine drill without breaking it. It has become possible to process large holes. If this thin portion is formed by a conical recess, the effect of preventing breakage of the fine drill can be further enhanced. Thus, it becomes possible to inexpensively manufacture a suction tip having a fine seed suction hole capable of sucking only one small seed.
【図１】本発明の種子のゲル被覆加工装置の種子供給機
構の要部正面図である。FIG. 1 is a front view of a main part of a seed supply mechanism of a seed gel coating processing apparatus of the present invention.
【図２】種子供給機構に取付けられる吸引チップの縦断
面図である。FIG. 2 is a vertical sectional view of a suction tip attached to a seed feeding mechanism.
【図３】薄肉部が設けられていない場合の吸引チップの
一例を示す縦断面図である。FIG. 3 is a vertical cross-sectional view showing an example of a suction tip when a thin portion is not provided.
【図４】薄肉部が設けられていない場合の吸引チップの
他の例を示す縦断面図である。FIG. 4 is a vertical cross-sectional view showing another example of the suction tip when a thin portion is not provided.
【図５】従来の種子供給機構の要部正面図である。FIG. 5 is a front view of a main part of a conventional seed supply mechanism.
【図６】図５の部分拡大図である。FIG. 6 is a partially enlarged view of FIG. 5;
【図７】ノズル部を説明する縦断面図である。FIG. 7 is a vertical cross-sectional view illustrating a nozzle portion.
Ａ1 種子供給機構 Ｂ 加工ノズル ７′ ノズルアジャスタ １４ 種子容器 ３１ 吸引チップ ３１ａ 下端壁 ３５ 円錐径の凹部 ３６ 薄肉部 ３７ 種子吸引孔A 1 seed supply mechanism B processing nozzle 7'nozzle adjuster 14 seed container 31 suction tip 31a lower end wall 35 conical recessed portion 36 thin-walled portion 37 seed suction hole
Claims (2)
を穿設した吸引チップを着脱自在に嵌着し、該吸引チッ
プにより種子容器内の種子を吸引し、吸引した種子を加
工ノズルに形成されるゲル膜に供給する種子のゲル被覆
加工装置の種子供給機構において、 上記吸引チップは、下端壁の一部に薄肉部を形成し、該
薄肉部に微小径のドリルにより上記種子吸引孔を穿設す
ることを特徴とする種子のゲル被覆加工装置の種子供給
機構。1. A suction tip having a seed suction hole is detachably fitted to the tip of a nozzle adjuster, the seed in a seed container is sucked by the suction tip, and the sucked seed is formed on a processing nozzle. In the seed supply mechanism of the gel coating processing apparatus for seeds to be supplied to the gel film, the suction tip has a thin-walled part formed in a part of the lower end wall, and the seed suction hole is drilled in the thin-walled part with a small diameter drill. A seed supply mechanism of a seed gel coating processing apparatus, wherein the seed supply mechanism is provided.
の刃先の案内面となる円錐形の凹部を設け、該凹部によ
り上記薄肉部が形成されることを特徴とする請求項１記
載の種子のゲル被覆加工装置の種子供給機構。2. The inner wall surface of the lower end wall is provided with a conical recess serving as a guide surface for the cutting edge of a drill having a small diameter, and the thin wall is formed by the recess. Seed feeding mechanism of the seed gel coating processing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07185887A JP3095113B2 (en) | 1995-07-21 | 1995-07-21 | Seed feeding mechanism of seed gel coating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07185887A JP3095113B2 (en) | 1995-07-21 | 1995-07-21 | Seed feeding mechanism of seed gel coating machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0928120A true JPH0928120A (en) | 1997-02-04 |
| JP3095113B2 JP3095113B2 (en) | 2000-10-03 |
Family
ID=16178624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07185887A Expired - Fee Related JP3095113B2 (en) | 1995-07-21 | 1995-07-21 | Seed feeding mechanism of seed gel coating machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3095113B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1194049A (en) * | 1997-09-22 | 1999-04-09 | Jatco Corp | Torque converter |
| JP2023064232A (en) * | 2021-10-26 | 2023-05-11 | ヤンマーホールディングス株式会社 | suction pad |
-
1995
- 1995-07-21 JP JP07185887A patent/JP3095113B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1194049A (en) * | 1997-09-22 | 1999-04-09 | Jatco Corp | Torque converter |
| JP2023064232A (en) * | 2021-10-26 | 2023-05-11 | ヤンマーホールディングス株式会社 | suction pad |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3095113B2 (en) | 2000-10-03 |
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