JPH0256270A - Pushing-out device for high viscous material - Google Patents
Pushing-out device for high viscous materialInfo
- Publication number
- JPH0256270A JPH0256270A JP20544988A JP20544988A JPH0256270A JP H0256270 A JPH0256270 A JP H0256270A JP 20544988 A JP20544988 A JP 20544988A JP 20544988 A JP20544988 A JP 20544988A JP H0256270 A JPH0256270 A JP H0256270A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- viscosity material
- valve body
- valve seat
- air
- 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
- 239000011345 viscous material Substances 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims description 44
- 238000009423 ventilation Methods 0.000 claims description 16
- 238000001125 extrusion Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- -1 greases Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00583—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes the container for the material to be dispensed being deformable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/015—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with pneumatically or hydraulically actuated piston or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
- B05C17/014—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like comprising means for preventing oozing
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、シーリング材、コーキング材、グリース、接
着剤等の高粘度材を圧出供給するための高粘度材圧出装
置に関するものである。Detailed Description of the Invention [Object of the Invention] (Industrial Field of Application) The present invention is a high-viscosity material extrusion method for extruding and supplying high-viscosity materials such as sealants, caulking materials, greases, adhesives, etc. It is related to the device.
（従来の技術）−５
従来の高粘度材圧出装置としては、例えば、特開昭５９
−２２２２４９号公報に示されるように、電動ポンプか
ら圧送される空気によって蛇腹状押圧体を伸張駆動し、
この蛇腹状押圧体によってカートリッジ内のコーキング
材やシーリング材などの高粘度材をノズルから圧出する
ものがある。(Prior art)-5 As a conventional high viscosity material extrusion device, for example, JP-A-59
As shown in Japanese Patent No. 222249, a bellows-shaped pressing body is driven to extend by air pumped from an electric pump,
Some presses use this bellows-shaped pressing body to force out high-viscosity materials such as caulking and sealing materials in the cartridge from the nozzle.
そして、前記電動ポンプから蛇腹状押圧体へ空気を供給
する給気管から排気管が引出され、この排気管先端の排
気弁を開くことにより、蛇腹状押圧体内の圧縮空気を抜
き、高粘度材の圧出を停止するようにしている。Then, an exhaust pipe is pulled out from the air supply pipe that supplies air from the electric pump to the bellows-shaped pressing body, and by opening the exhaust valve at the tip of this exhaust pipe, the compressed air inside the bellows-shaped pressing body is extracted, and the high-viscosity material is removed. I am trying to stop the extrusion.
（発明が解決しようとする課題）
この従来の装置は、排気弁が開かれると蛇腹状押圧体の
内部から圧縮空気が外部に排気される作用が開始される
が、排気管や排気弁が有する流路抵抗によって前記排気
が瞬時になされるものではなく、排気弁操作から蛇腹状
抑圧体の押圧作用停止までに、ある程度の時間遅れが生
ずる。このため、その間に少量の高粘度材が吐出口から
漏出する「後垂れ」の問題がある。(Problem to be Solved by the Invention) In this conventional device, when the exhaust valve is opened, the action of exhausting compressed air from inside the bellows-shaped pressing body to the outside starts. Due to the flow path resistance, the evacuation is not instantaneous, and there is a certain amount of time delay from when the exhaust valve is operated until the pressing action of the bellows-shaped suppressor stops. For this reason, there is a problem of "sagging" in which a small amount of high-viscosity material leaks from the discharge port during that time.
本発明は、高粘度材圧出停止時の後垂れを防止すること
を目的とするものである。The object of the present invention is to prevent sag when the extrusion of a high viscosity material is stopped.
（課題を解決するための手段）
本発明は、蛇腹容器６１内に収容された高粘度材を圧出
する高粘度材圧出装置において、装置本体１１に圧縮空
気の供給を受ける３方弁１６が設けられ、この３方弁１
６に対して弁操作部２７が設けられ、前記３方弁１６を
経て圧縮空気を給排気される外筒４４が装置本体１１に
取付けられ、この外筒４４の先端間口にキャップ５１が
気密に設けられ、このキャップ５１に高粘度材吐出口５
５が設けられ、このキャップ５１の高粘度材吐出口５５
に外筒４４内に収容された蛇腹容器６１の高粘度材出口
部６２が接続され、この蛇腹容器６１の反対端部に受圧
部６４が設けられ、前記３方弁１６として、弁本体２１
の一側に圧縮空気の供給を受ける給気弁座７１が設けら
れ、弁本体２１の他側に大気に連通する排気弁座７３が
設けられ、前記給気弁座７１から排気弁座７３にわたっ
て弁本体２１の内部に通気間隙３３を介して弁体２２が
軸方向に移動自在に嵌合され、この弁体２２の両側部に
弁本体２１の給気弁座７１または排気弁座７３に対し両
開き状態を経て接離自在の一対の閉止部３１．３２が設
けられ、この一対の閉止部３１．３２の間の前記通気間
隙３３に対して弁本体２１に給排気小孔３６が開口され
、この給排気小孔３６が前記外筒４４内に連通されたも
のである。(Means for Solving the Problems) The present invention provides a high viscosity material extrusion device for extruding a high viscosity material housed in a bellows container 61. is provided, and this three-way valve 1
An outer cylinder 44 is attached to the main body 11, and a valve operation part 27 is provided for the outer cylinder 44, and compressed air is supplied and exhausted through the three-way valve 16. A high viscosity material discharge port 5 is provided in this cap 51.
5 is provided, and a high viscosity material discharge port 55 of this cap 51 is provided.
A high viscosity material outlet portion 62 of a bellows container 61 housed in the outer cylinder 44 is connected to the bellows container 61 , and a pressure receiving portion 64 is provided at the opposite end of the bellows container 61 .
An air supply valve seat 71 that receives compressed air supply is provided on one side, and an exhaust valve seat 73 that communicates with the atmosphere is provided on the other side of the valve body 21. A valve body 22 is fitted into the inside of the valve body 21 through a ventilation gap 33 so as to be freely movable in the axial direction. A pair of closing portions 31.32 are provided which can be freely moved toward and away from each other through a double-opening state, and a small supply/exhaust hole 36 is opened in the valve body 21 to the ventilation gap 33 between the pair of closing portions 31.32. This small supply/exhaust hole 36 communicates with the inside of the outer cylinder 44 .
（作用）
本発明は、弁操作部２７によって３方弁１６の弁体２２
の一方の閉止部３１が給気弁座７１を開くとともに、他
方の閉止部３２が排気弁座１３を閉じているときは、圧
縮空気が、給気弁座７１、通気間隙３３さらに給排気小
孔３６等を経て外筒４４の内部に圧入され、蛇腹容器６
１の受圧部６４が押圧され、蛇腹容器６１の内部から高
粘度材吐出口５５等を経て容器内高粘度材が圧出される
。(Function) The present invention allows the valve operating section 27 to control the valve body 22 of the three-way valve 16.
When one closing portion 31 opens the air supply valve seat 71 and the other closing portion 32 closes the exhaust valve seat 13, compressed air flows through the air supply valve seat 71, the ventilation gap 33, and the air supply/exhaust small. The bellows container 6 is press-fitted into the outer cylinder 44 through the hole 36 etc.
The first pressure receiving part 64 is pressed, and the high viscosity material inside the container is forced out from the inside of the bellows container 61 through the high viscosity material discharge port 55 and the like.
次に、高粘度材の圧出を停止するために、弁操作部２７
によって弁体２２の一方の閉止部３１が閉じ他方の閉止
部３２が開く方向に移動すると、その段階で、給気弁座
７１および排気弁座７３の両方が開く両開きの状態があ
る。このとき、給気弁座７１から通気間隙３３、排気弁
座７３を経て外部に圧縮空気が噴出する流れが生じ、こ
の高速空気流に臨む給排気小孔３６はエゼクタと同様の
作用で負圧となる。Next, in order to stop extruding the high viscosity material, the valve operating section 27
When one closing portion 31 of the valve body 22 moves in the direction of closing and the other closing portion 32 opens, at that stage, there is a double-opening state in which both the air intake valve seat 71 and the exhaust valve seat 73 are opened. At this time, a flow of compressed air is generated from the air supply valve seat 71 through the ventilation gap 33 and the exhaust valve seat 73 to the outside, and the small air supply and exhaust hole 36 facing this high-speed air flow has a negative pressure due to the same effect as an ejector. becomes.
したがって、この給排気小孔３６に連通する外筒４４の
内部からの排気が瞬時になされ、蛇腹容器６１の受圧部
６４を押圧していた空気圧が一瞬のうちに解消されるの
で、高粘度材の圧出が直ちに停止するとともに、高粘度
材の後垂れが生じない。Therefore, the air is instantly exhausted from the inside of the outer cylinder 44 that communicates with the small air supply/exhaust hole 36, and the air pressure that was pressing against the pressure receiving part 64 of the bellows container 61 is instantly released. The extrusion of the material stops immediately, and the high viscosity material does not sag.
最後に、弁体２２の一方の閉止部３１が給気弁座７１を
完全に閉じるとともに、他方の閉止部３２が排気弁座７
３を開き、高粘度材圧出停止状態が維持される。Finally, one closing portion 31 of the valve body 22 completely closes the intake valve seat 71, and the other closing portion 32 closes the exhaust valve seat 71.
3 is opened, and the high viscosity material extrusion stopped state is maintained.
（実施例）
以下、本発明を図面に示される実施例を参照して詳細に
説明する。(Examples) Hereinafter, the present invention will be described in detail with reference to examples shown in the drawings.
第１図に示されるように、装置本体１１の下部にグリッ
プ１２が一体成形され、このグリップ１２の内部に圧縮
空気供給穴１３が穿設されている。この圧縮空気供給穴
１３の下端はコンプレツサ等の圧縮空気供給源に接続さ
れる。圧縮空気供給穴１３の上端はスプリング装着溝１
４に連通され、この溝１４に対して弁装首穴１５が設け
られている。そして、この弁装首穴１５にエゼクタ機能
を有する３方弁１６が装着されている。As shown in FIG. 1, a grip 12 is integrally molded at the bottom of the main body 11 of the apparatus, and a compressed air supply hole 13 is bored inside the grip 12. The lower end of this compressed air supply hole 13 is connected to a compressed air supply source such as a compressor. The upper end of the compressed air supply hole 13 is the spring mounting groove 1.
4, and a valve neck hole 15 is provided for this groove 14. A three-way valve 16 having an ejector function is attached to this valve neck hole 15.
この３方弁１６は、前記弁装首穴１５に弁本体２１が嵌
着され、この弁本体２１の中心軸孔に弁体２２が軸方向
に移動自在に嵌合され、この弁体２２の右端部にスプリ
ング受部２３が一体成形され、このスプリング受部２３
に前記スプリング装着溝１４に装着された圧縮コイルス
プリング２４の一端が当接されている。また、弁体２２
の左端部には引金係合部２５が一体に嵌着され、装置本
体１１に軸２６によって枢着された弁操作部としての引
金２７がこの引金係合部２５に係合されている。In this three-way valve 16, a valve body 21 is fitted into the valve neck hole 15, and a valve body 22 is fitted into the central axis hole of this valve body 21 so as to be movable in the axial direction. A spring receiving portion 23 is integrally molded on the right end portion, and this spring receiving portion 23
One end of a compression coil spring 24 mounted in the spring mounting groove 14 is brought into contact with the spring mounting groove 14 . In addition, the valve body 22
A trigger engaging portion 25 is integrally fitted into the left end portion of the device, and a trigger 27 serving as a valve operation portion pivotally connected to the device body 11 by a shaft 26 is engaged with this trigger engaging portion 25. There is.
弁体２２の右側部には一方の閉止部（０リング）３１が
嵌着され、左側部には他方の閉止部（Ｏリング）３２が
嵌着され、また、弁本体２１と弁体２２どの間に通気間
隙３３が設けられ、さらに弁本体２１と引金係合部２５
との間に排気間隙３４が設けられている。One closing part (O-ring) 31 is fitted to the right side of the valve body 22, and the other closing part (O-ring) 32 is fitted to the left side. A ventilation gap 33 is provided between the valve body 21 and the trigger engaging portion 25.
An exhaust gap 34 is provided between the two.
さらに、弁本体２１の外周面に設けられた凹ｔｉ３５か
ら前記通気間隙３３にわたって、弁本体２１に給排気小
孔３６が斜めに穿設されている。Further, a small supply/exhaust hole 36 is diagonally bored in the valve body 21 from the recess ti35 provided on the outer circumferential surface of the valve body 21 to the ventilation gap 33.
装置本体１１の上部には外筒取付部４１が一体成形され
、前記臼ｆｉ３５からこの外筒取付部４１の前面にわた
って通気孔４２が穿設され、さらに、この外筒取付部４
１の前面にバッキング４３を介して外筒４４の基端部４
５が、裏板４６に螺合されるボルト４７の締付けによっ
て固定されている。裏板４６には通気穴４８が設けられ
ている。An outer cylinder attachment part 41 is integrally molded on the upper part of the device main body 11, and a ventilation hole 42 is bored from the mortar fi 35 to the front surface of this outer cylinder attachment part 41.
The proximal end 4 of the outer cylinder 44 is attached to the front surface of the outer cylinder 44 via the backing 43.
5 is fixed by tightening a bolt 47 screwed into the back plate 46. A ventilation hole 48 is provided in the back plate 46.
また、前記外筒４４の先端開口にキャップ５１の螺合部
５２がバッキング５３を介して気密に螺合されている。Further, a threaded portion 52 of a cap 51 is hermetically threaded into the opening at the tip of the outer cylinder 44 via a backing 53.
キャップ５１にはノズル取付部５４が一体成形され、こ
の取付部５４に高粘度材吐出口５５が設けられている。A nozzle attachment part 54 is integrally molded on the cap 51, and a high viscosity material discharge port 55 is provided in this attachment part 54.
キャップ５１の螺合部５２には安全穴５６が穿設されて
いる。この安全穴５６は、キャップ５１の螺合部５２が
摩耗したり緩んだときに外筒４４内の圧縮空気がこの安
全穴５６を経て外部に排気されるようにして、キャップ
５１が突発的に外れるおそれを防止するものである。A safety hole 56 is bored in the threaded portion 52 of the cap 51. This safety hole 56 allows the compressed air in the outer cylinder 44 to be exhausted to the outside through this safety hole 56 when the threaded portion 52 of the cap 51 is worn out or loosened, so that the cap 51 can be suddenly removed. This prevents the possibility of it coming off.
前記キャップ５１の高粘度材吐出口５５の内側に、外筒
４４内に収容された蛇腹容器６１の高粘度材出口部６２
が螺合され、その日６３がキャップ５１の高粘度材吐出
口５５に接続連通されている。蛇腹容器６１の反対端部
には受圧部６４が設けられている。蛇腹容器６１は、収
縮方向に復元性を有する合成樹脂製容器であり、内部に
はシーリング材、コーキング材、グリースまたは接着剤
等の高粘度材が封入されている。A high viscosity material outlet portion 62 of a bellows container 61 housed in the outer cylinder 44 is located inside the high viscosity material discharge port 55 of the cap 51.
are screwed together, and the wire 63 is connected and communicated with the high viscosity material discharge port 55 of the cap 51. A pressure receiving part 64 is provided at the opposite end of the bellows container 61. The bellows container 61 is a synthetic resin container that has resilience in the direction of contraction, and a high viscosity material such as a sealant, caulking material, grease, or adhesive is sealed inside.
さらに、前記３方弁１６は、第２図乃至第４図に示され
るように、弁本体２１の右側に圧縮空気の供給を受ける
給気弁座７１が設けられ、この給気弁座７１と前記一方
の閉止部３１との間に給気間隙７２が設けられ、また、
弁本体２１の左側に大気に連通ずる排気弁座７３が設け
られ、この排気弁座７３と前記他方の閉止部３２どの間
に排気間隙７４が設けられている。Furthermore, as shown in FIGS. 2 to 4, the three-way valve 16 is provided with an air supply valve seat 71 on the right side of the valve body 21 to receive compressed air. An air supply gap 72 is provided between the one closing part 31, and
An exhaust valve seat 73 communicating with the atmosphere is provided on the left side of the valve body 21, and an exhaust gap 74 is provided between the exhaust valve seat 73 and the other closing portion 32.
次に、この実施例の作用を説明する。Next, the operation of this embodiment will be explained.
第１図に示されるように、引金２７が引かれ、３方弁１
６の弁体２２がスプリング２４に抗して開き操作される
と、弁体２２の一方の閉止部３１が給気弁座７１を開く
とともに、他方の閉止部３２が排気弁座７３を閉じ、圧
縮空気給気穴１３からスプリング装着溝１４に供給され
た圧縮空気は、第２図に示されるように、給気間隙７２
、通気間隙３３、給排気小孔３６、凹溝３５、通気孔４
２さらには裏板４６の通気穴４８を経て外筒４４の内部
に圧入され、外筒４４内の空気圧が高まる。そして、蛇
腹容器６１の受圧部６４であって高粘度材出口部６２の
断面積に対応する面積にかかる空気圧によって蛇腹容器
６１が圧縮され、この容器６１内の高粘度材料が前記出
口部６２の口６３から押出され、高粘度材吐出口５５に
接続された高粘度材吐出ノズル（図示せず）を経て対象
物に圧出される。As shown in FIG. 1, the trigger 27 is pulled and the three-way valve 1
When the valve body 22 of No. 6 is opened against the spring 24, one closing part 31 of the valve body 22 opens the intake valve seat 71, and the other closing part 32 closes the exhaust valve seat 73. The compressed air supplied from the compressed air supply hole 13 to the spring mounting groove 14 flows through the air supply gap 72 as shown in FIG.
, ventilation gap 33, supply/exhaust small hole 36, groove 35, ventilation hole 4
2 Furthermore, it is press-fitted into the outer cylinder 44 through the ventilation hole 48 of the back plate 46, and the air pressure inside the outer cylinder 44 increases. Then, the bellows container 61 is compressed by the air pressure applied to the pressure receiving part 64 of the bellows container 61 in an area corresponding to the cross-sectional area of the high viscosity material outlet part 62, and the high viscosity material in this container 61 is transferred to the outlet part 62. The material is extruded from the opening 63 and is extruded onto the object through a high viscosity material discharge nozzle (not shown) connected to the high viscosity material discharge port 55 .
次に、高粘度材の圧出を停止するために、引金２７を解
放すると、３方弁１６の弁体２２が圧縮コイルスプリン
グ２４の復元力によって左方へ移動され、一方の閉止部
３１が閉じ他方の閉止部３２が聞く方向に移動する。こ
の移動中に、第３図に示されるように給気弁座７１およ
び排気弁座７３の両方が開く「両開き状態」が瞬間的に
生ずる。この過渡的な「両開き状態」においては、給気
間隙７２から通気間隙３３、排気間隙７４を経て外部に
圧縮空気が噴出する流れが生じ、この高速空気流に臨む
給排気小孔３６は、エゼクタで良く知られているように
負圧となる。したがって、この給排気小孔３６に通気孔
４２等を経て連通ずる外筒４４の内部からの排気が瞬時
になされ、蛇腹容器６１の受圧部６４を押圧していた空
気圧が一瞬のうちに解消されるので、高粘度材の圧出が
直ちに停止するとともに、吐出口５５に接続されたノズ
ルの先端からの高粘度材の後型れが防止される。Next, when the trigger 27 is released to stop the extrusion of the high-viscosity material, the valve body 22 of the three-way valve 16 is moved to the left by the restoring force of the compression coil spring 24, and one closing part 31 is moved to the left by the restoring force of the compression coil spring 24. closes and the other closing part 32 moves in the listening direction. During this movement, a "double-open state" in which both the intake valve seat 71 and the exhaust valve seat 73 are opened, as shown in FIG. 3, momentarily occurs. In this transient "double-open state," a flow of compressed air is generated from the air supply gap 72 through the ventilation gap 33 and the exhaust gap 74 to the outside, and the small air supply/exhaust hole 36 facing this high-speed air flow is connected to the ejector. As is well known, negative pressure occurs. Therefore, the air is instantly exhausted from the inside of the outer cylinder 44, which communicates with the small supply/exhaust hole 36 via the ventilation hole 42, etc., and the air pressure that was pressing against the pressure receiving part 64 of the bellows container 61 is instantly released. Therefore, the extrusion of the high-viscosity material is immediately stopped, and the high-viscosity material is prevented from coming out from the tip of the nozzle connected to the discharge port 55.
最後に、第４図に示されるように、弁体２２の一方の閉
止部３１が給気弁座７１を完全に閉じるとともに、他方
の閉止部３２が排気弁座７３を開き、高粘度材圧出停止
状態が維持される。Finally, as shown in FIG. 4, one closing part 31 of the valve body 22 completely closes the intake valve seat 71, and the other closing part 32 opens the exhaust valve seat 73, causing the high viscosity material to The stopped state is maintained.
本発明によれば、エゼクタ機能を有する３方弁によって
高粘度材圧出停止時の後型れを効果的に防止できる。According to the present invention, the three-way valve having an ejector function can effectively prevent molding after the extrusion of the high-viscosity material is stopped.
第１図は本発明の高粘度材圧出装置の一実施例を示す断
面図、第２図、第３図および第４図はその３方弁の作用
を示す断面図である。
１１・・装置本体、１６・・３方弁、２１・・弁本体、
２２・・弁体、２７・・弁操作部としての引金、３１、
３２・・閉止部、３３・・通気間隙、３６・・給排気小
孔、４４・・外筒、５１・・キャップ、５５・・高粘度
材吐出口、６１・・蛇腹容器、６２・・高粘度材出口部
、６４・・受圧部、７１・・給気弁座、７３・・排気弁
座。FIG. 1 is a cross-sectional view showing one embodiment of the high-viscosity material extrusion apparatus of the present invention, and FIGS. 2, 3, and 4 are cross-sectional views showing the operation of the three-way valve. 11...Device body, 16...3-way valve, 21...Valve body,
22... Valve body, 27... Trigger as valve operation part, 31.
32... Closing part, 33... Ventilation gap, 36... Small supply/exhaust hole, 44... Outer tube, 51... Cap, 55... High viscosity material discharge port, 61... Bellows container, 62... High Viscosity material outlet part, 64...Pressure receiving part, 71...Air supply valve seat, 73...Exhaust valve seat.
Claims (1)
度材圧出装置において、装置本体に圧縮空気の供給を受
ける３方弁が設けられ、この３方弁に対して弁操作部が
設けられ、前記３方弁を経て圧縮空気を給排気される外
筒が装置本体に取付けられ、この外筒の先端開口にキャ
ップが気密に設けられ、このキャップに高粘度材吐出口
が設けられ、このキャップの高粘度材吐出口に外筒内に
収容された蛇腹容器の高粘度材出口部が接続され、この
蛇腹容器の反対端部に受圧部が設けられ、前記３方弁は
、弁本体の一側に圧縮空気の供給を受ける給気弁座が設
けられ、弁本体の他側に大気に連通する排気弁座が設け
られ、前記給気弁座から排気弁座にわたって弁本体の内
部に通気間隙を介して弁体が軸方向に移動自在に嵌合さ
れ、この弁体の両側部に弁本体の給気弁座または排気弁
座に対し両開き状態を経て接離自在の一対の閉止部が設
けられ、この一対の閉止部の間の前記通気間隙に対して
弁本体に給排気小孔が開口され、この給排気小孔が前記
外筒内に連通されたことを特徴とする高粘度材圧出装置
。(1) In a high-viscosity material extrusion device that presses out a high-viscosity material housed in a bellows container, a three-way valve that receives compressed air is provided in the device body, and the valve is operated to operate the three-way valve. An outer cylinder is attached to the apparatus main body, and a cap is airtightly provided at the tip opening of the outer cylinder, and a high viscosity material discharge port is provided in this cap. A high viscosity material outlet portion of a bellows container housed in the outer cylinder is connected to a high viscosity material discharge port of the cap, a pressure receiving portion is provided at the opposite end of the bellows container, and the three-way valve is An air supply valve seat is provided on one side of the valve body to receive compressed air, and an exhaust valve seat that communicates with the atmosphere is provided on the other side of the valve body, and the valve body extends from the air supply valve seat to the exhaust valve seat. A valve body is fitted into the inside of the valve body through a ventilation gap so as to be movable in the axial direction, and a pair of valve bodies are provided on both sides of the valve body so as to be able to move toward and away from the intake valve seat or the exhaust valve seat of the valve body through a double-open state. A closing part is provided, a small supply/exhaust hole is opened in the valve body with respect to the ventilation gap between the pair of closing parts, and the small supply/exhaust hole is communicated with the inside of the outer cylinder. High viscosity material extrusion equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20544988A JPH0638936B2 (en) | 1988-08-18 | 1988-08-18 | High viscosity material extrusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20544988A JPH0638936B2 (en) | 1988-08-18 | 1988-08-18 | High viscosity material extrusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0256270A true JPH0256270A (en) | 1990-02-26 |
| JPH0638936B2 JPH0638936B2 (en) | 1994-05-25 |
Family
ID=16507064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20544988A Expired - Fee Related JPH0638936B2 (en) | 1988-08-18 | 1988-08-18 | High viscosity material extrusion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0638936B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005246278A (en) * | 2004-03-05 | 2005-09-15 | Ckd Corp | Liquid discharge apparatus |
| CN105057182A (en) * | 2015-08-29 | 2015-11-18 | 袁诚才 | Manual glue injection gun for precise injection molding |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9724135B2 (en) * | 2010-12-17 | 2017-08-08 | DePuy Synthes Products, Inc. | Methods and systems for minimally invasive posterior arch expansion |
-
1988
- 1988-08-18 JP JP20544988A patent/JPH0638936B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005246278A (en) * | 2004-03-05 | 2005-09-15 | Ckd Corp | Liquid discharge apparatus |
| CN105057182A (en) * | 2015-08-29 | 2015-11-18 | 袁诚才 | Manual glue injection gun for precise injection molding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0638936B2 (en) | 1994-05-25 |
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