JP2584057Y2 - Flow control valve used for hot melt resin coating device - Google Patents
Flow control valve used for hot melt resin coating deviceInfo
- Publication number
- JP2584057Y2 JP2584057Y2 JP8725792U JP8725792U JP2584057Y2 JP 2584057 Y2 JP2584057 Y2 JP 2584057Y2 JP 8725792 U JP8725792 U JP 8725792U JP 8725792 U JP8725792 U JP 8725792U JP 2584057 Y2 JP2584057 Y2 JP 2584057Y2
- Authority
- JP
- Japan
- Prior art keywords
- hot melt
- melt resin
- valve
- resin
- coating device
- 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.)
- Expired - Fee Related
Links
Landscapes
- Coating Apparatus (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、ホツトメルト樹脂塗布
装置の樹脂の給送路に接続された還流路に介設されてそ
の還流量を調整することにより塗布器からの吐出量を制
御するのに用いる流量調整弁に関する。BACKGROUND OF THE INVENTION The present invention relates to a method for controlling the amount of discharge from an applicator by adjusting the amount of reflux provided in a reflux path connected to a resin supply path of a hot melt resin coating apparatus. The present invention relates to a flow control valve used for the above.
【０００２】[0002]
【従来の技術】ホツトメルト樹脂塗布装置は、ホツトメ
ルト樹脂をギヤポンプで汲み上げて給送路により塗布器
に給送する一方、その給送路にギヤポンプの吐出口側か
ら吸込口側に帰還する還流路を接続して、その還流路に
介設した流量調整弁で還流量を調整することにより、塗
布器からの樹脂の吐出量を制御するようになつており、
従来、その流量調整弁としては、弁口に接離して開度を
変化させる弁体の圧力バランス用の押付力をばね力で調
整する構造のものが使用されていた。2. Description of the Related Art In a hot melt resin coating apparatus, a hot melt resin is pumped up by a gear pump and fed to a coating device through a feed path. Connected, the amount of resin discharged from the applicator is controlled by adjusting the amount of reflux with a flow control valve interposed in the reflux path,
Conventionally, as the flow control valve, a valve having a structure in which a pressing force for pressure balance of a valve body that changes its opening degree by coming into contact with and separating from a valve port is adjusted by a spring force has been used.
【０００３】[0003]
【考案が解決しようとする課題】しかしながら、従来の
ばねで弁体の押付力を調整するものは、樹脂の流通に伴
つてばねが弾性変形する等により押付力が安定せず、し
たがつて、樹脂の還流量が安定しないために、塗布器か
らの樹脂の吐出量に変動が生じやすい欠点があつた。However, in the conventional spring in which the pressing force of the valve body is adjusted by the spring, the pressing force is not stabilized due to the elastic deformation of the spring due to the flow of the resin. Since the reflux amount of the resin is not stable, there is a disadvantage that the discharge amount of the resin from the applicator tends to fluctuate.
【０００４】また、ばね力の調整部分が高温の樹脂が流
通する流量調整弁自体に設けられているため、ばね力の
調整時にやけど等の事故を起こす危険性もあつた。Further, since the spring force adjusting portion is provided on the flow control valve itself through which the high-temperature resin flows, there is a danger of an accident such as a burn when adjusting the spring force.
【０００５】[0005]
【課題を解決するための手段】本考案のホツトメルト樹
脂塗布装置に用いる流量調整弁は、叙上の点に鑑み案出
されたものであつて、還流路に形成した弁口の開度を変
化させる弁体を作動エアにより駆動されるエアシリンダ
のロツドと連結し、その作動エアの供給路にエアレギユ
レータを介設した構成とした。SUMMARY OF THE INVENTION A flow control valve used in the hot melt resin coating apparatus of the present invention has been devised in view of the above points, and changes the degree of opening of a valve opening formed in a reflux path. The valve body to be operated is connected to a rod of an air cylinder driven by working air, and an air regulator is provided in a supply path of the working air.
【０００６】[0006]
【考案の作用及び効果】本考案は上記構成になり、弁体
の駆動をエアシリンダで行うようにし、しかも、そのエ
アシリンダの駆動用の作動エアはエアレギユレータを介
することにより一定の圧力に制御されて供給されるか
ら、弁体には常に一定の力が作用することとなつて、弁
口の開度すなわち樹脂の還流量が安定し、その結果、塗
布器からの樹脂の吐出量を安定させることができる。Operation and effect of the present invention The present invention has the above-mentioned structure, and the valve body is driven by an air cylinder, and the operating air for driving the air cylinder is controlled to a constant pressure through an air regulator. Is supplied to the valve body, a constant force always acts on the valve body, and the opening degree of the valve port, that is, the amount of resin reflux is stabilized, and as a result, the amount of resin discharged from the applicator is stabilized. be able to.
【０００７】また、還流量の調整は、高温の樹脂が流通
する流量調整弁の本体部分から離れた位置に設けられた
エアレギユレータにおいてその設定圧を調整すれば良い
から、作業者がやけどをするおそれが無くて安全性に優
れる効果がある。In addition, the amount of recirculation can be adjusted by adjusting the set pressure of an air regulator provided at a position distant from the main body of the flow regulating valve through which the high-temperature resin flows. There is no effect, and the effect is excellent in safety.
【０００８】[0008]
【実施例】以下、本考案の一実施例を図１に基づいて説
明する。図において、符号１は、ホツトメルト樹脂ａを
溶融状態で貯留するタンクであつて、このタンク１内の
樹脂ａがモータ３で駆動されるギヤポンプ２により一定
の吐出量で吐出され、ヒーテイングホース５を設けた給
送路４により塗布ガン６のノズル７に給送されるととも
に、上記の樹脂ａの給送路４に、樹脂ａの一部をギヤポ
ンプ２の吐出側から吸込側に向かつて還流させる還流路
８が接続され、その還流路８に介設した流量調整弁１０
で樹脂ａの還流量を調整することによつて、塗布ガン６
のノズル７からの樹脂ａの吐出量を制御するようになつ
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG. In the figure, reference numeral 1 denotes a tank for storing hot melt resin a in a molten state. The resin a in the tank 1 is discharged by a gear pump 2 driven by a motor 3 at a constant discharge rate. Is fed to the nozzle 7 of the coating gun 6 by the feed path 4 provided with the resin, and a part of the resin a is returned to the feed path 4 of the resin a from the discharge side of the gear pump 2 toward the suction side. A flow control valve 10 connected to the return passage 8 is provided.
By adjusting the reflux amount of the resin a with the
The amount of the resin a discharged from the nozzle 7 is controlled.
【０００９】本実施例の流量調整弁１０は、上記の還流
路８の途中に設けた弁口と、その弁口に接離して開度を
調整する弁体１２とを備えた本体１１に、エアシリンダ
１３が取り付けられて、そのピストンロツド１４の先端
が上記の弁体１２と結合されている。The flow control valve 10 of the present embodiment comprises a main body 11 having a valve port provided in the middle of the above-mentioned recirculation path 8 and a valve element 12 for adjusting the opening degree by coming into contact with and separating from the valve port. An air cylinder 13 is attached, and the tip of a piston rod 14 is connected to the valve body 12.
【００１０】エアシリンダ１３のピストン１５の前面室
１６と後面室１７とは、方向切換弁１８を介してエア供
給源１９に接続されており、そのエア供給路２０にエア
レギユレータ２１が介設されている。A front chamber 16 and a rear chamber 17 of the piston 15 of the air cylinder 13 are connected to an air supply source 19 via a direction switching valve 18, and an air regulator 21 is provided in the air supply path 20. I have.
【００１１】また、上記の方向切換弁１８は、ギヤポン
プ２の駆動用モータ３の駆動とその停止に連動して切り
換えられるようになつている。The direction switching valve 18 can be switched in conjunction with the driving of the driving motor 3 of the gear pump 2 and the stop thereof.
【００１２】本実施例はこのような構造になり、ギヤポ
ンプ２のモータ３が起動すると、方向切換弁１８が図１
の状態に切り換わつて、エアシリンダ１３のピストン１
５の後面室１７に作動エアが供給されるとともに前面室
１６が大気に開放されてピストンロツド１４が進出し、
それより弁体１２に押付力が作用してその押付力と還流
される樹脂ａの圧力のバランスにより弁口の開度が調整
されて樹脂ａの還流量が調整される。This embodiment has such a structure, and when the motor 3 of the gear pump 2 is started, the directional control valve 18 is moved to the position shown in FIG.
Is switched to the state shown in FIG.
5, the working air is supplied to the rear chamber 17 and the front chamber 16 is opened to the atmosphere, and the piston rod 14 advances,
As a result, a pressing force acts on the valve body 12, and the degree of opening of the valve port is adjusted by the balance between the pressing force and the pressure of the recirculated resin a, thereby adjusting the amount of resin a recirculated.
【００１３】その際、エアシリンダ１３の後面室１７に
供給される作動エアは、エアレギユレータ２１を介する
ことにより設定された一定の圧力に制御されているか
ら、弁体１２には常に一定の押付力が作用することとな
つて、弁口の開度すなわち樹脂ａの還流量が安定し、そ
の結果、塗布ガン６のノズル７からの樹脂ａの吐出量が
変動することなく安定する。At this time, the operating air supplied to the rear chamber 17 of the air cylinder 13 is controlled to a constant pressure set through the air regulator 21, so that the valve body 12 always has a constant pressing force. Act, the opening degree of the valve port, that is, the recirculation amount of the resin a is stabilized, and as a result, the discharge amount of the resin a from the nozzle 7 of the coating gun 6 is stabilized without fluctuation.
【００１４】塗布ガン６からの樹脂ａの吐出量すなわち
還流量を調整する場合は、エアレギユレータ２１の二次
圧の設定値を変更してエアシリンダ１３への作動エアの
供給圧を制御すれば良く、そのエアレギユレータ２１は
高温の樹脂ａが流通する流量調整弁１０の本体１１とは
別の離れた位置に設けられているから、調整作業に際し
てやけどをする危険性が無い。When adjusting the discharge amount of the resin a from the application gun 6, ie, the recirculation amount, the set value of the secondary pressure of the air regulator 21 may be changed to control the supply pressure of the working air to the air cylinder 13. Since the air regulator 21 is provided at a position separated from the main body 11 of the flow control valve 10 through which the high-temperature resin a flows, there is no danger of burns during the adjustment work.
【００１５】また、ギヤポンプ２の稼働の停止に際して
モータ３を停止すると、それと連動して方向切換弁１８
が図１とは逆に切り換わり、エアシリンダ１３のピスト
ン１５の前面室１６内に作動エアが供給されるとともに
後面室１７が大気に開放されることによつて、ピストン
ロツド１４並びに弁体１２が後退して弁口が全開され、
塗布ガン６側の残圧が還流路８を通つて抜けて安全な状
態となる。When the motor 3 is stopped when the operation of the gear pump 2 is stopped, the direction switching valve 18
1 is switched in the opposite direction to that in FIG. 1, the working air is supplied into the front chamber 16 of the piston 15 of the air cylinder 13 and the rear chamber 17 is opened to the atmosphere, so that the piston rod 14 and the valve element 12 are opened. Retreat and the valve port is fully opened,
The residual pressure on the application gun 6 side passes through the recirculation path 8 to be in a safe state.
【図１】本考案の一実施例の構成図である。FIG. 1 is a configuration diagram of an embodiment of the present invention.
ａ：ホツトメルト樹脂 ２：ギヤポンプ ４：給送路
６：塗布ガン（塗布器） ８：還流路 １０：流量調整
弁 １１：本体 １２：弁体 １３：エアシリンダ １
４：ピストンロツド ２０：エア供給路 ２１：エアレ
ギユレータa: Hot melt resin 2: Gear pump 4: Feeding path
6: Coating gun (applicator) 8: Recirculation path 10: Flow control valve 11: Main body 12: Valve 13: Air cylinder 1
4: Piston rod 20: Air supply path 21: Air regulator
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−180667（ＪＰ，Ａ) 特開 平２−149369（ＪＰ，Ａ) 特開 昭63−111963（ＪＰ，Ａ) 特開 平６−55109（ＪＰ，Ａ) 特開 平３−296463（ＪＰ，Ａ) 実開 平３−34857（ＪＰ，Ｕ) 実開 昭61−178977（ＪＰ，Ｕ) 実開 平４−81667（ＪＰ，Ｕ) 実開 平６−45663（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) B05C 7/00 - 21/00──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-180667 (JP, A) JP-A-2-149369 (JP, A) JP-A-63-111963 (JP, A) JP-A-6-118 55109 (JP, A) JP-A-3-296463 (JP, A) JP-A-3-34857 (JP, U) JP-A-61-178977 (JP, U) JP-A-4-81667 (JP, U) 6-45663 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) B05C 7/00-21/00
Claims (1)
み上げて塗布器に給送する給送路に前記ギヤポンプの吐
出口側から吸込口側に帰還する還流路を接続して、該還
流路に介設した流量調整弁で還流量を調整することによ
り、前記塗布器からのホツトメルト樹脂の吐出量を制御
するようにしたホツトメルト樹脂塗布装置の前記流量調
整弁であつて、 前記還流路に形成した弁口の開度を変化させる弁体を作
動エアにより駆動されるエアシリンダのロツドと連結
し、該作動エアの供給路にエアレギユレータを介設した
ことを特徴とするホツトメルト樹脂塗布装置に用いる流
量調整弁。1. A reflux path, which returns a hot melt resin from a discharge port side to a suction port side of a gear pump to a feed path for pumping hot melt resin by a gear pump and feeding the resin to an applicator, is connected to the return path. The flow rate adjusting valve of the hot melt resin coating device, wherein the discharge amount of the hot melt resin from the coating device is controlled by adjusting the amount of reflux by an adjusting valve, wherein an opening of a valve port formed in the reflux path is opened. A flow regulating valve for use in a hot melt resin coating device, wherein a valve body for changing the degree is connected to a rod of an air cylinder driven by working air, and an air regulator is provided in a supply path of the working air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8725792U JP2584057Y2 (en) | 1992-11-25 | 1992-11-25 | Flow control valve used for hot melt resin coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8725792U JP2584057Y2 (en) | 1992-11-25 | 1992-11-25 | Flow control valve used for hot melt resin coating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0645667U JPH0645667U (en) | 1994-06-21 |
| JP2584057Y2 true JP2584057Y2 (en) | 1998-10-30 |
Family
ID=13909729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8725792U Expired - Fee Related JP2584057Y2 (en) | 1992-11-25 | 1992-11-25 | Flow control valve used for hot melt resin coating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2584057Y2 (en) |
-
1992
- 1992-11-25 JP JP8725792U patent/JP2584057Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0645667U (en) | 1994-06-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
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| LAPS | Cancellation because of no payment of annual fees |