JPH02122858A - Liquid material quantitative discharge device - Google Patents
Liquid material quantitative discharge deviceInfo
- Publication number
- JPH02122858A JPH02122858A JP27701288A JP27701288A JPH02122858A JP H02122858 A JPH02122858 A JP H02122858A JP 27701288 A JP27701288 A JP 27701288A JP 27701288 A JP27701288 A JP 27701288A JP H02122858 A JPH02122858 A JP H02122858A
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- liquid material
- syringe
- amount
- liquid
- 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.)
- Pending
Links
- 239000011344 liquid material Substances 0.000 title claims abstract description 74
- 238000001514 detection method Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 abstract description 12
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000007665 sagging Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 1
- 239000013642 negative control Substances 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000010304 firing Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003287 optical 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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
-
- 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
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は、例えば光学部品や電子部品等を固定するため
の接着剤等を定量ずつ吐出する場合などに用いられる液
状材料定量吐出装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a liquid material dispensing device used, for example, to dispense a fixed amount of adhesive, etc. for fixing optical components, electronic components, etc. It is.
従来の液状材料定量吐出装置には、例えば第３図に示す
ように、ノズル１１を備えたシリンジ１２が設けられて
いる。シリンジ１２の内部には、接着剤等の液状材料が
貯留されるようになっている。また、シリンジ１２には
、切り換え弁１３を介し、例えば５ ｋｇ ／ ｃｉ程
度の加圧気体を１ ｋｇ ／ ｃｒＡ程度の一定の圧力
にするレギュレータ１４が接続されている。A conventional liquid material dispensing device is provided with a syringe 12 equipped with a nozzle 11, as shown in FIG. 3, for example. A liquid material such as an adhesive is stored inside the syringe 12 . Further, a regulator 14 is connected to the syringe 12 via a switching valve 13, for example, to adjust pressurized gas of about 5 kg/ci to a constant pressure of about 1 kg/crA.
このような液状材料定量吐出装置では、切り換え弁１３
を切り換えて、レギ、ル−タ１４から供給される加圧気
体をシリンジ１２に導入し、シリンジ１２内部の液状材
料を加圧することにより、ノズル１１の先端部から液状
材料を吐出する一方、シリンジ１２の内部を大気に解放
し、シリンジ１２内部の圧力を大気圧にすることにより
、液状材料の吐出を停止するようになっている。In such a liquid material metering discharge device, the switching valve 13
By switching the pressurized gas supplied from the leg and router 14 into the syringe 12 and pressurizing the liquid material inside the syringe 12, the liquid material is discharged from the tip of the nozzle 11, while the syringe Discharging of the liquid material is stopped by opening the inside of the syringe 12 to the atmosphere and bringing the pressure inside the syringe 12 to atmospheric pressure.
また、液状材料の粘度が、例えば２０，０ＯＯｃＰ程度
以下である場合には、液状材料の吐出を停止するときに
、シリンジ１２内部の圧力を大気圧にしても、液状材料
の自重によって液だれを起こすことがある。Furthermore, if the viscosity of the liquid material is, for example, about 20.0 OOcP or less, even if the pressure inside the syringe 12 is set to atmospheric pressure when dispensing the liquid material, the weight of the liquid material will prevent the liquid from dripping. It can happen.
そこで、例えば第４図に示すように、切り換え弁１３に
真空発生器１５を接続したものも用いられている。上記
真空発生器１５は、レギュレータ１７および定流量弁１
６を介して加圧気体が供給されることにより、負圧を発
生するようになっている。これによれば、液状材料の粘
度が低い場合でも、液状材料の自重等と、真空発生器１
５が発生する負圧とをバランスさせ、吐出停止時におけ
。Therefore, for example, as shown in FIG. 4, a switching valve 13 connected to a vacuum generator 15 is also used. The vacuum generator 15 includes a regulator 17 and a constant flow valve 1.
By supplying pressurized gas through 6, negative pressure is generated. According to this, even when the viscosity of the liquid material is low, the weight of the liquid material and the vacuum generator 1
5 to balance the negative pressure generated when the discharge is stopped.
る液だれを防止することができるようになっていた。This made it possible to prevent dripping.
（発明が解決しようとする課８］
シリンジ１２の内部を負圧にする場合、ノズル１１の先
端部における液状材料の状態は、第５図に示すように、
負圧の大きさによって変化する。(Problem 8 to be Solved by the Invention) When creating a negative pressure inside the syringe 12, the state of the liquid material at the tip of the nozzle 11 is as shown in FIG.
It changes depending on the magnitude of negative pressure.
例えば負圧が小さい場合、すなわち、負圧の大きさが液
だれ発生領域の大きさである場合には、やはり液だれを
生じ、吐出量が不安定になってしまう。また、負圧が大
きすぎる場合、すなわち、空打ち発生領域の大きさであ
る場合には、液状材料がノズル１１の先端から奥の方ま
で吸い込まれ、切り換え弁１３を切り換えて加圧気体を
シリンジ１２に導入しても液状材料が吐出されない、い
わゆる空打ちが発生してしまう。For example, if the negative pressure is small, that is, if the magnitude of the negative pressure is equal to the size of the dripping region, dripping will still occur and the discharge amount will become unstable. In addition, if the negative pressure is too large, that is, if it is the size of the dry injection occurrence area, the liquid material is sucked from the tip of the nozzle 11 to the back, and the switching valve 13 is switched to transfer the pressurized gas to the syringe. 12, the liquid material is not discharged, resulting in so-called dry firing.
それゆえ、適正な吐出を行うためには、真空発生器１５
が発生ずる負圧の大きさを、安定吐出領域下限負圧と、
安定吐出領域上限負圧との間の安定吐出領域の大きさに
なるように調節する必要がある。Therefore, in order to perform proper discharge, it is necessary to use the vacuum generator 15.
The magnitude of the negative pressure that occurs is defined as the lower limit negative pressure in the stable discharge area.
It is necessary to adjust the size of the stable discharge region to be between the stable discharge region upper limit negative pressure and the stable discharge region upper limit negative pressure.
とごろで、上記安定吐出領域は、シリンジ１２内に貯゛
留されている液状材料の量によって変化する。例えば、
液状材料として日本ロックタイト株製の接着剤＃３２５
ｔＪＶを用い、また、内径が０゜５８ ｍｍのノズル１
１を用いた場合、シリンジ１２に貯留されている接着剤
量に応じた負圧の安定吐出領域は、第６図のようになる
。The above-mentioned stable discharge region changes depending on the amount of liquid material stored in the syringe 12. for example,
Adhesive #325 manufactured by Nippon Loctite Co., Ltd. as a liquid material
Using tJV, nozzle 1 with an inner diameter of 0°58 mm
1, the stable negative pressure discharge area according to the amount of adhesive stored in the syringe 12 is as shown in FIG.
すなわち、シリンジ１２に貯留されている接着剤量がｌ
Ｏｎ＋４２であるときに、液だれか発生しないように、
真空発生器１５の発生する負圧を５ｍｍＨｇに調節した
とすると、接着剤の吐出に伴ってシリンジ１２内に残留
する接着剤が３ ｍｌ以下に減少した場合、こんどは空
打ちが発生してしまうことになる。That is, the amount of adhesive stored in the syringe 12 is l.
To prevent liquid from being generated when On+42,
Assuming that the negative pressure generated by the vacuum generator 15 is adjusted to 5 mmHg, if the amount of adhesive remaining in the syringe 12 decreases to 3 ml or less as the adhesive is discharged, dry ejection will occur. It turns out.
したがって、上記従来の液状材料定量吐出装置では、液
状材料の吐出に伴って、真空発生器１５の発生する負圧
の大きさの調節や、シリンジ１２への液状材料の補給を
頻繁に行わなければ、液だれや空打ちを防止することが
できず、適正な吐出を行うことができないという問題点
を有していた。Therefore, in the conventional liquid material dispensing device described above, it is necessary to frequently adjust the magnitude of the negative pressure generated by the vacuum generator 15 and replenish the liquid material to the syringe 12 as the liquid material is discharged. However, there was a problem in that it was not possible to prevent liquid dripping or dry firing, and it was not possible to perform proper discharge.
本発明に係る液状材料定量吐出装置は、上記の課題を解
決するために、シリンジに貯留された液状材料を定量ず
つノズルから吐出する液状材料定量吐出装置において、
シリンジに貯留されている液状材料の量を検出する検出
手段と、シリンジ内の圧力が負圧になるようにする負圧
発生手段と、検出手段からの信号に基づいて、負圧発生
手段の発生する負圧の大きさが、シリンジに貯留されて
いる液状材料の量に応じた大きさになるように制御する
負圧制御手段とを備えたことを特徴としている。In order to solve the above-mentioned problem, the liquid material metering discharge device according to the present invention is a liquid material metering discharge device that discharges the liquid material stored in a syringe in fixed amounts from a nozzle.
A detection means for detecting the amount of liquid material stored in the syringe, a negative pressure generation means for making the pressure inside the syringe negative pressure, and a generation of the negative pressure generation means based on the signal from the detection means. The present invention is characterized by comprising negative pressure control means for controlling the magnitude of the negative pressure to be in accordance with the amount of liquid material stored in the syringe.
（作 用）
上記の構成により、液だれを生じない下限の負圧、およ
び空打ちを生じない上限の負圧の大きさは、シリンジに
貯留されている液状材料の量に応じて変化するが、負圧
発生手段の発生する負圧の大きさは、制御手段によって
、検出手段からの信号に基づき、シリンジに貯留されて
いる液状材料の量に応じた大きさになるように制御され
る。それゆえ、液状材料の吐出に伴っ−（液状材料の量
が変化しても、常に、液だれや空打ちが発生することな
く適正な吐出を行うことができる。(Function) With the above configuration, the lower limit of negative pressure that does not cause dripping and the upper limit of negative pressure that does not cause empty injection change depending on the amount of liquid material stored in the syringe. The magnitude of the negative pressure generated by the negative pressure generating means is controlled by the control means based on the signal from the detection means so that the magnitude corresponds to the amount of liquid material stored in the syringe. Therefore, even if the amount of the liquid material changes as the liquid material is discharged, proper discharge can always be performed without causing dripping or empty firing.
本発明の一実施例を第１図および第２図に基づいて説明
すれば、以下の通りである。An embodiment of the present invention will be described below based on FIGS. 1 and 2.
液状材料定量吐出装置２０には、例えば第１図に示すよ
うに、ノズル２１を備えたシリンジ２２が設けられてい
る。シリンジ２２の内部には、接着剤等の液状材料が貯
留されるようになっている。また、シリンジ２２には、
切り換え弁２３を介し、例えば５ ｋｇ ／ ｃ消程度
の加圧気体を１ｋｇ／ｃ＋ｆ１程度の一定の圧力にする
レギュレータ２４が接続されている。切り換え弁２３と
レギュレータ２４とを接続する管路中には、圧力計３１
が設けられている。The liquid material metering discharge device 20 is provided with a syringe 22 equipped with a nozzle 21, as shown in FIG. 1, for example. A liquid material such as an adhesive is stored inside the syringe 22 . In addition, the syringe 22 includes
A regulator 24 is connected via a switching valve 23 to make the pressurized gas at a pressure of, for example, 5 kg/c to a constant pressure of about 1 kg/c+f1. A pressure gauge 31 is installed in the pipe connecting the switching valve 23 and the regulator 24.
is provided.
切り換え弁２３には、また、負圧調整弁３２を介して負
圧源３３が接続され、この負圧調整弁３２と負圧源３３
とによって、シリンジ２２内の圧力が負圧になるように
する負圧発生手段である負圧発生装置３４が構成されて
いる。A negative pressure source 33 is also connected to the switching valve 23 via a negative pressure regulating valve 32, and the negative pressure regulating valve 32 and the negative pressure source 33
A negative pressure generating device 34, which is a negative pressure generating means for making the pressure inside the syringe 22 negative pressure, is configured by the above.
上記負圧調整弁３２には、負圧制御手段である負圧制御
装置３５が接続されている。負圧制御装置３５には、シ
リンジ２２に貯留されている液状材料の液面位置を検知
する液面センサ３６が接続されている。この液面センサ
３６は、シリンジ２２に貯留されている液状材料の液面
位置を検知することにより、液状材料の量を検出する検
出手段として作用するようになっている。ここで検出手
段としては、液面センサ３６に限らず、液状材料の吐出
回数を計数するカウンタを用いて液状材料の量を検出す
るようにしてもよい。A negative pressure control device 35, which is negative pressure control means, is connected to the negative pressure regulating valve 32. A liquid level sensor 36 that detects the level position of the liquid material stored in the syringe 22 is connected to the negative pressure control device 35 . The liquid level sensor 36 is adapted to act as a detection means for detecting the amount of liquid material by detecting the level position of the liquid material stored in the syringe 22. Here, the detection means is not limited to the liquid level sensor 36, and a counter that counts the number of times the liquid material is discharged may be used to detect the amount of the liquid material.
上記負圧制御装置３５は、液面センサ３６からの信号に
基づいて、負圧発生装置３４の発生する負圧の大きさが
、シリンジ２２に貯留されている液状材料の量に応した
大きさになるように制御する負圧制御手段として作用す
るようになっている。The negative pressure control device 35 determines, based on the signal from the liquid level sensor 36, that the magnitude of the negative pressure generated by the negative pressure generator 34 is a magnitude corresponding to the amount of liquid material stored in the syringe 22. It acts as a negative pressure control means to control the pressure so that
上記の構成において、シリンジ２２に貯留された液状材
料の吐出を行うときには、例えば、図示しない切り換え
弁制御装置によって切り換え弁２３を切り換え、レギュ
レータ２４から供給される一定の圧力の加圧気体を所定
の時間だけシリンジ２２に供給する。すると、シリンジ
２２内部の液状材料は加圧され、加圧気体が供給されて
いる時間に応じた一定量の液状材料が、ノズル２１の先
端部から吐出される。In the above configuration, when discharging the liquid material stored in the syringe 22, the switching valve 23 is switched by a switching valve control device (not shown), and the pressurized gas at a constant pressure supplied from the regulator 24 is controlled to a predetermined level. time into the syringe 22. Then, the liquid material inside the syringe 22 is pressurized, and a certain amount of the liquid material is discharged from the tip of the nozzle 21 according to the time period during which the pressurized gas is supplied.
シリンジ２２への加圧気体の供給が開始されてから所定
の時間だけ経過すると、切り換え弁２３が切り換わって
、こんどは、負圧発生装置３４の負圧調整弁３２がシリ
ンジ２２に接続される。すると、シリンジ２２の内部は
負圧になるので、液状材料の吐出は停止する。When a predetermined period of time has elapsed after the supply of pressurized gas to the syringe 22 was started, the switching valve 23 is switched, and the negative pressure regulating valve 32 of the negative pressure generator 34 is then connected to the syringe 22. . Then, since the inside of the syringe 22 becomes negative pressure, the discharge of the liquid material is stopped.
ここで、負圧制御装置３５は、液面センサ３６からの信
号に基づいて、負圧発生装置３４の発生する負圧が、液
だれを生じない下限の負圧と空打ちを生じない上限の負
圧との中間の大きさになるように制御する。それゆえ、
液状材料の自重等とシリンジ２２内部の負圧とはバラン
スするので、再度、切り換え弁２３が切り換わって吐出
が行われるときには、安定した量の適正な吐出が行われ
る。Here, the negative pressure control device 35 determines, based on the signal from the liquid level sensor 36, that the negative pressure generated by the negative pressure generating device 34 is a lower limit negative pressure that does not cause dripping and an upper limit that does not cause dry firing. The pressure is controlled to be between the negative pressure and the negative pressure. therefore,
Since the weight of the liquid material and the negative pressure inside the syringe 22 are balanced, when the switching valve 23 is switched again to perform discharge, a stable and appropriate amount of discharge is performed.
以下、同様に、シリンジ２２が切り換わるたびに、液状
材料の吐出、停止が行われ、シリンジ２２に貯留されて
いる液状材料の量は徐々に減少する。そこで、液だれを
生じない下限の負圧、および空打ちを生じない上限の負
圧の大きさも徐々に減少するが、シリンジ２２に貯留さ
れている液状材料の量は、常に、液面センサ３６によっ
て検出される。そして、負圧制御装置３５は、負圧調整
弁３２の発生する負圧の大きさがシリンジ２２に貯留さ
れている液状材料の量に応じた大きさになるように制御
する。Similarly, each time the syringe 22 is switched, the liquid material is discharged and stopped, and the amount of the liquid material stored in the syringe 22 gradually decreases. Therefore, the lower limit negative pressure that does not cause dripping and the upper limit negative pressure that does not cause empty injection gradually decrease, but the amount of liquid material stored in the syringe 22 is always maintained by the liquid level sensor 36. detected by. The negative pressure control device 35 controls the negative pressure generated by the negative pressure regulating valve 32 so that it corresponds to the amount of liquid material stored in the syringe 22.
したがって、液状材料の吐出に伴って液状材料の量が変
化しても、常に、液だれや空打ちが発生することなく適
正な吐出を行うことができるので、例えば電子部品の接
着を行う自動化ライン等において、］／１００ｍｊ！以
下程度の微小量の吐出を安定して行う場合などにも用い
ることができる。Therefore, even if the amount of liquid material changes as it is being discharged, it can always be discharged properly without dripping or dry discharge, making it possible, for example, to create an automated line for gluing electronic components. etc., ]/100mj! It can also be used when ejecting a minute amount, such as the following, in a stable manner.
なお、本実施例においては、負圧調整弁３２と負圧源３
３とによって負圧発生装置３４を構成し、負圧源３３が
発生した負圧を負圧調整弁３２によって調整する例につ
いて説明したが、これに限らず、例えば第２図に示すよ
うに、加圧空気が供給されて負圧を発生する真空発生器
４１と、真空発生器４１に供給する加圧空気の流量を負
圧制御装置３５の制御により調整する流量調整弁４２と
によって構成したものなどでもよい。In addition, in this embodiment, the negative pressure regulating valve 32 and the negative pressure source 3
3 constitutes the negative pressure generating device 34, and the negative pressure generated by the negative pressure source 33 is adjusted by the negative pressure regulating valve 32. However, the present invention is not limited to this, and for example, as shown in FIG. It is composed of a vacuum generator 41 that is supplied with pressurized air and generates negative pressure, and a flow rate adjustment valve 42 that adjusts the flow rate of the pressurized air that is supplied to the vacuum generator 41 under the control of the negative pressure control device 35. etc.
〔発明の効果］
本発明に係る液状材料定量吐出装置は、以上のように、
シリンジに貯留された液状材料を定量ずつノズルから吐
出する液状材料定量吐出装置において、シリンジに貯留
されている液状材料の量を検出する検出手段と、シリン
ジ内の圧力が負圧になるようにする負圧発生手段と、検
・山手段からの信号に基づいて、負圧発生手段の発生す
る負圧の大きさが、シリンジに貯留されている液状材料
の量に応じた大きさになるように制御する負圧制御手段
とを備えた構成である。[Effects of the Invention] As described above, the liquid material metering discharge device according to the present invention has the following features:
A liquid material dispensing device for discharging a fixed amount of liquid material stored in a syringe from a nozzle includes a detection means for detecting the amount of liquid material stored in the syringe, and a detection means for making the pressure inside the syringe negative pressure. Based on the signals from the negative pressure generating means and the inspection/piling means, the magnitude of the negative pressure generated by the negative pressure generating means is made to be a magnitude corresponding to the amount of liquid material stored in the syringe. This configuration includes negative pressure control means for controlling the negative pressure.
これにより、負圧発生手段の発生する負圧の大きさは、
制御手段が、検出手段からの信号に基づいて、シリンジ
に貯留されている液状材料の量に応じた大きさになるよ
うに制御するので、吐出に伴って液状材料の量が変化し
ても、常に、液だれや空打ちを生じることなく適正な吐
出が行われる。As a result, the magnitude of the negative pressure generated by the negative pressure generating means is
The control means controls the size of the liquid material in accordance with the amount of liquid material stored in the syringe based on the signal from the detection means, so even if the amount of liquid material changes as it is discharged, Appropriate discharge is always performed without dripping or empty firing.
それゆえ、シリンジ内に貯留し得る液状材料量の制限が
大幅に緩和され、−度に多量の液状材料を充填すること
ができるので、安定した適正な吐出をＩ員なうことなく
、液状材料の充填回数を低減することができるという効
果を奏する。Therefore, the restriction on the amount of liquid material that can be stored in the syringe is significantly relaxed, and a large amount of liquid material can be filled at one time. This has the effect that the number of times of filling can be reduced.
第１図および第２図は本発明の一実施例を示すものであ
って、第１図は液状材料定量吐出装置の構成を示ずブａ
’７り図、第２図は真空発生器と流量調整弁とによっ
て負圧発生装置が構成される場合の例を示すブロック図
である。
第３図ないし第６図は従来例を示すものであって、第３
図は従来の液状材料定量吐出装置の構成を示すブロック
図、第４図は従来の他の液状材料定量吐出装置の構成を
示すブロック図、第５図はシリンジ内部の負圧の大きさ
と、ノズルの先端部における液状材料の状態との関係を
示す説明図、第６図はシリンジに貯留されている液状材
料の量と、シリンジ内部の負圧の大きさにおける安定吐
出領域との関係を示すグラフである。
２０は液状材料定量吐出装置、２１はノズル、２２はシ
リンジ、３４は負圧発生装置（負圧発生手段）、３５は
負圧制御装置（負圧制御手段）、３６は液面センサ（検
出手段）である。
一
く！
一1 and 2 show an embodiment of the present invention, and FIG. 1 does not show the structure of the liquid material metering discharge device, but shows the configuration of the liquid material dispensing device.
FIG. 7 and FIG. 2 are block diagrams showing an example of a negative pressure generating device configured by a vacuum generator and a flow rate regulating valve. Figures 3 to 6 show conventional examples.
Fig. 4 is a block diagram showing the configuration of a conventional liquid material dispensing device, Fig. 4 is a block diagram showing the configuration of another conventional liquid material dispensing device, and Fig. 5 shows the magnitude of the negative pressure inside the syringe and the nozzle. Fig. 6 is a graph showing the relationship between the amount of liquid material stored in the syringe and the stable discharge area depending on the magnitude of negative pressure inside the syringe. It is. 20 is a liquid material metering discharge device, 21 is a nozzle, 22 is a syringe, 34 is a negative pressure generator (negative pressure generation means), 35 is a negative pressure control device (negative pressure control means), 36 is a liquid level sensor (detection means) ). One! one
Claims (1)
ら吐出する液状材料定量吐出装置において、シリンジに
貯留されている液状材料の量を検出する検出手段と、シ
リンジ内の圧力が負圧になるようにする負圧発生手段と
、検出手段からの信号に基づいて、負圧発生手段の発生
する負圧の大きさが、シリンジに貯留されている液状材
料の量に応じた大きさになるように制御する負圧制御手
段とを備えたことを特徴とする液状材料定量吐出装置。1. In a liquid material metering dispensing device that discharges a fixed amount of liquid material stored in a syringe from a nozzle, there is a detection means for detecting the amount of liquid material stored in the syringe, and a means for controlling the pressure inside the syringe to become negative pressure. Based on the signal from the negative pressure generating means and the detecting means, the negative pressure generated by the negative pressure generating means is adjusted to a size corresponding to the amount of liquid material stored in the syringe. A device for dispensing a fixed amount of liquid material, characterized in that it is equipped with a negative pressure control means for controlling the amount of liquid material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27701288A JPH02122858A (en) | 1988-10-31 | 1988-10-31 | Liquid material quantitative discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27701288A JPH02122858A (en) | 1988-10-31 | 1988-10-31 | Liquid material quantitative discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02122858A true JPH02122858A (en) | 1990-05-10 |
Family
ID=17577535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27701288A Pending JPH02122858A (en) | 1988-10-31 | 1988-10-31 | Liquid material quantitative discharge device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02122858A (en) |
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|---|---|---|---|---|
| JPH03217271A (en) * | 1990-01-23 | 1991-09-25 | Musashi Eng Co Ltd | Constant-amount discharger for liquid |
| JPH06170304A (en) * | 1992-12-11 | 1994-06-21 | Toshiba Seiki Kk | Adhesive applicator and method for pellet bonding |
| JPH06277598A (en) * | 1993-03-25 | 1994-10-04 | Nec Corp | Dispenser and its method for storing liquid agent |
| JPH06315662A (en) * | 1993-04-30 | 1994-11-15 | Sony Corp | Liquid coating device |
| JPH09108605A (en) * | 1995-10-20 | 1997-04-28 | Tdk Corp | Intermittent coating application method and intermittent coating applicator |
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| JPH11244757A (en) * | 1998-03-06 | 1999-09-14 | Musashi Eng Co Ltd | Liquid discharging device |
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| JP2004105968A (en) * | 2003-12-22 | 2004-04-08 | Musashi Eng Co Ltd | Liquid discharging device |
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| WO2006022458A1 (en) * | 2004-08-26 | 2006-03-02 | Musashi Engineering, Inc. | Device for discharging fixed quantity of liquid |
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-
1988
- 1988-10-31 JP JP27701288A patent/JPH02122858A/en active Pending
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|---|---|---|---|---|
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| JPH06170304A (en) * | 1992-12-11 | 1994-06-21 | Toshiba Seiki Kk | Adhesive applicator and method for pellet bonding |
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| JPH06315662A (en) * | 1993-04-30 | 1994-11-15 | Sony Corp | Liquid coating device |
| JPH09108605A (en) * | 1995-10-20 | 1997-04-28 | Tdk Corp | Intermittent coating application method and intermittent coating applicator |
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| JPH11244757A (en) * | 1998-03-06 | 1999-09-14 | Musashi Eng Co Ltd | Liquid discharging device |
| JP2000149929A (en) * | 1998-11-11 | 2000-05-30 | Matsushita Electric Ind Co Ltd | Device for intermittent coating of coating material to substrate and production equipment of electrode plate for battery |
| KR100447113B1 (en) * | 2000-09-04 | 2004-09-04 | 가부시키가이샤 히다치 인더스트리즈 | Paste coating apparatus |
| KR100511352B1 (en) * | 2002-02-27 | 2005-08-31 | 엘지.필립스 엘시디 주식회사 | An apparatus for dispensing liquid crystal and a method of controlling liquid crystal dropping amount |
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| JP2004105968A (en) * | 2003-12-22 | 2004-04-08 | Musashi Eng Co Ltd | Liquid discharging device |
| WO2006022458A1 (en) * | 2004-08-26 | 2006-03-02 | Musashi Engineering, Inc. | Device for discharging fixed quantity of liquid |
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| JP2006061824A (en) * | 2004-08-26 | 2006-03-09 | Musashi Eng Co Ltd | Liquid quantitative discharge apparatus |
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