JPH0337744Y2 - - Google Patents
Info
- Publication number
- JPH0337744Y2 JPH0337744Y2 JP12483283U JP12483283U JPH0337744Y2 JP H0337744 Y2 JPH0337744 Y2 JP H0337744Y2 JP 12483283 U JP12483283 U JP 12483283U JP 12483283 U JP12483283 U JP 12483283U JP H0337744 Y2 JPH0337744 Y2 JP H0337744Y2
- Authority
- JP
- Japan
- Prior art keywords
- width
- slit nozzle
- gear pump
- coating
- inlet
- 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
Links
- 239000007788 liquid Substances 0.000 claims description 45
- 239000011248 coating agent Substances 0.000 claims description 36
- 238000000576 coating method Methods 0.000 claims description 36
- 239000000758 substrate Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 description 17
- 239000004744 fabric Substances 0.000 description 5
- 239000010426 asphalt Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
Description
【考案の詳細な説明】
本考案は、塗料、接着剤、合成樹脂液、石こう
スラリー、アスフアルト混合液等の高粘度液を、
紙、布、合成樹脂フイルム、金属板、カーペツト
基布等の基材に連続して塗布する装置に関する。[Detailed description of the invention] This invention allows high viscosity liquids such as paints, adhesives, synthetic resin liquids, gypsum slurry, asphalt mixed liquids, etc.
This invention relates to a device that continuously coats substrates such as paper, cloth, synthetic resin film, metal plates, carpet base fabrics, etc.
この種の装置としてはロールコーター及びカテ
ンフローコーターが代表的なものであるが、ロー
ルコーターはロールの回転ムラ、振動等により塗
布量にバラツキが生ずる欠点があり、カーテンフ
ローコーターはホツパー内の塗布液ヘツドを一定
に保つためのオーバーフロー装置及びスリツトノ
ズルからの流出量のバラツキを補うために過剰の
塗布液を流出させるがその過剰分を回収する装置
が必要であり、更には塗布液の流出が自然落下に
よるため高粘度液になるにしたがい塗布量の調節
が困難になるという欠点がある。即ち、カーテン
フローコーターによる塗布量の調節は、スリツト
ノズルのスリツト間隔、ノズルと基材受台との間
隔、基材の送り速度等を調節することにより行わ
れるが、スリツト間隔の調節はスペーサーの交換
によりなされるため微調整が難しく、また、液洩
れの心配もあり、更に高粘度液の場合はノズルか
らの吐出流量が少いため基材の送り速度を遅くせ
ねばならず、生産性の低下を余儀なくされる等、
いくつかの問題を有している。 Roll coaters and curtain flow coaters are typical of this type of equipment, but roll coaters have the disadvantage that the coating amount varies due to uneven rotation of the rolls, vibration, etc., while curtain flow coaters have the disadvantage that the amount of coating varies due to uneven roll rotation, vibration, etc. An overflow device is required to keep the liquid head constant, and a device is required to collect the excess coating liquid that flows out to compensate for variations in the amount flowing out from the slit nozzle. There is a drawback that it becomes difficult to adjust the amount of application as the viscosity of the liquid increases due to falling. In other words, the amount of coating applied by a curtain flow coater is adjusted by adjusting the slit spacing of the slit nozzle, the spacing between the nozzle and the base material holder, the feeding speed of the base material, etc., but the slit spacing can be adjusted by replacing the spacer. It is difficult to make fine adjustments, and there is also the risk of liquid leakage.Furthermore, in the case of high viscosity liquids, the flow rate discharged from the nozzle is low, so the feeding speed of the substrate must be slowed down, which reduces productivity. Being forced, etc.
It has some problems.
本考案は上述のような従来装置の欠点を解消せ
んとするもので、簡単な機構を用いて高粘度液を
基材上に均一に塗布することができ、塗布量調節
も容易であり、しかも生産性を高めることができ
る塗工装置を提供することを目的とする。 The present invention aims to solve the above-mentioned drawbacks of the conventional apparatus, and uses a simple mechanism to uniformly apply a high viscosity liquid onto a substrate, and it is easy to adjust the amount of application. The purpose is to provide a coating device that can increase productivity.
上記目的を達成すべくなされた本考案は、高粘
度液を基材に塗布する装置において、高粘度液を
収容するホツパーと、ギアポンプと、高粘度液を
基材上に供給する吐出口を持つたスリツトノズル
とが上方から順次に連結されており、前記ギアポ
ンプは１対の歯車と流入口と流出口を有し、該歯
車の歯巾と流入口及び流出口の巾とは、前記スリ
ツトノズルの吐出口巾にほぼ等しくなつており、
前記スリツトノズルはその下端に、基材上に塗布
された高粘度液層に接触し平滑化する平坦面を有
し、該平坦面の下流側の角部は25〜35度の鋭角と
なつていることを特徴とする塗工装置を要旨とす
る。 The present invention, which was made to achieve the above object, is an apparatus for applying a high viscosity liquid onto a substrate, which has a hopper for accommodating the high viscosity liquid, a gear pump, and a discharge port for supplying the high viscosity liquid onto the substrate. The gear pump has a pair of gears, an inlet port, and an outlet port, and the tooth width of the gear and the widths of the inlet port and the outlet port are connected sequentially from above. It is approximately equal to the exit width,
The slit nozzle has a flat surface at its lower end that contacts and smoothes the high viscosity liquid layer applied on the base material, and the downstream corner of the flat surface has an acute angle of 25 to 35 degrees. The gist is a coating device characterized by the following.
以下、図示実施例を用いた本考案を更に詳細に
説明する。 Hereinafter, the present invention will be explained in more detail using illustrated embodiments.
第１図、第２図において、貯留タンク（図示せ
ず）より移送された塗布液４（図示実施例ではア
スフアルト混合液）を受入れるホツパー１の下部
流出口１Ａにはギアポンプ２の流入口２Ａが連結
され、更にギアポンプ２の下部流出口２Ｂにはス
リツトノズル３の流入口３Ａが連結されており、
スリツトノズル３の吐出口３Ｂの下方には基材受
台６が配置されている。スリツトノズル３は、そ
の吐出口３Ｂから吐出された塗布液が直接、基材
受台６上の基材５（図示実施例ではカーペツト基
布）に供給され、基材５上に塗布されるよう、基
材５に極めて接近して配置されており、従つて、
吐出口３Ｂの巾は所望の塗工巾と同等である。ま
た、吐出口３Ｂの巾は流入口３Ａの巾に等しく、
塗布液がノズル３内を均一に下向きに流下するよ
うになつている。更にスリツトノズル３には塗工
巾方向における吐出量の多少のバラツキを修正す
るためにスリツト間隔の微調節用ボルト７がスリ
ツトノズル３の巾方向に数ヶ所にわたつて等間隔
で付設されている。 1 and 2, an inlet 2A of a gear pump 2 is connected to a lower outlet 1A of a hopper 1 that receives a coating liquid 4 (asphalt mixed liquid in the illustrated embodiment) transferred from a storage tank (not shown). Furthermore, the inlet 3A of the slit nozzle 3 is connected to the lower outlet 2B of the gear pump 2.
A base material holder 6 is arranged below the discharge port 3B of the slit nozzle 3. The slit nozzle 3 is configured such that the coating liquid discharged from its discharge port 3B is directly supplied to the base material 5 (carpet base fabric in the illustrated embodiment) on the base material holder 6, and is applied onto the base material 5. is located in close proximity to the substrate 5 and therefore
The width of the discharge port 3B is equivalent to the desired coating width. Further, the width of the discharge port 3B is equal to the width of the inlet port 3A,
The coating liquid is configured to flow downward uniformly within the nozzle 3. Further, the slit nozzle 3 is provided with bolts 7 for fine adjustment of the slit interval at several locations at equal intervals in the width direction of the slit nozzle 3 in order to correct some variations in the discharge amount in the coating width direction.
第３図に拡大して示すように、スリツトノズル
３の下端には、基材５上に塗布された塗布液層４
Ａに接触する平坦面３Ｃがある。この平坦面３Ｃ
は塗布液層４Ａの厚みを規制しかつその表面を平
滑化する。平坦面３Ｃの下流側（第３図右側）の
角部３Ｄは角度θが25〜35度の鋭角になされてお
り、このような形状にすると角部３Ｄでの液切が
よくなり、塗布液層４Ａ表面の平滑さを一層増加
させる効果がある。 As shown in an enlarged view in FIG.
There is a flat surface 3C that contacts A. This flat surface 3C
controls the thickness of the coating liquid layer 4A and smoothes its surface. The corner 3D on the downstream side (right side in Figure 3) of the flat surface 3C has an acute angle θ of 25 to 35 degrees, and this shape allows for better liquid drainage at the corner 3D, allowing the application liquid to This has the effect of further increasing the smoothness of the surface of layer 4A.
ギアポンプ２は、塗布液の流入口及び流出口の
巾がスリツトノズル３の吐出口巾と同等であり、
流出口２Ｂの奥行D1がスリツト間隔とほぼ同等
であり流入口２Ａの奥行D2が流出口のそれより
大であるように形成され、その内部に１対の歯車
８を有している。歯車８の歯巾は流入口及び流出
口の巾とほぼ同等にされており、このため塗布液
はギアポンプ２及びノズル３内を塗工巾全体にわ
たつて下向きに流れ、吐出量が極めて均一とな
る。なお、実際には歯車８の歯巾は流出口の巾よ
りもわずかに大きくされており、塗布液層４Ａの
耳部の厚みが薄くなるのを防止している。歯車８
の歯としては断面寸法の極めて小さいものが使用
され、換言すれば、歯数が通常のギアポンプに比
べて極めて多くなつており、これによりギアポン
プ脈動を小さくしている。 The width of the inlet and outlet of the coating liquid in the gear pump 2 is equal to the width of the discharge opening of the slit nozzle 3,
The depth D 1 of the outlet 2B is approximately equal to the slit spacing, and the depth D 2 of the inlet 2A is greater than that of the outlet, and a pair of gears 8 are provided therein. The tooth width of the gear 8 is made almost equal to the width of the inlet and outlet, so the coating liquid flows downward across the entire coating width in the gear pump 2 and nozzle 3, and the discharge amount is extremely uniform. Become. Note that the tooth width of the gear 8 is actually made slightly larger than the width of the outlet to prevent the thickness of the edge portion of the coating liquid layer 4A from becoming thinner. gear 8
The teeth used have extremely small cross-sectional dimensions; in other words, the number of teeth is significantly greater than that of a normal gear pump, thereby reducing gear pump pulsation.
ホツパー１は塗布液４の流入口１Ｂの巾及び流
出口１Ａの巾ともギアポンプ２の流入口２Ａの巾
と同等であり、第２図からよくわかるように、流
出口１Ａの奥行がギアポンプ２の流入口２Ａのそ
れと同等であり上方に向つてラツパ状に広がつて
大きい流入口１Ａ（貯留タンクからの液受入口）
を形成するものである。ホツパー１及びギアポン
プ２には加熱装置（図示せず）が付設され、常温
では流動性のほとんどない溶液も加熱して流動性
を与え、容易に塗工しうるようになつている。 The width of the inlet 1B and the width of the outlet 1A of the coating liquid 4 in the hopper 1 are equal to the width of the inlet 2A of the gear pump 2, and as can be clearly seen from FIG. The inlet 1A is similar to the inlet 2A and widens upward in a large shape (liquid receiving port from the storage tank).
It forms the A heating device (not shown) is attached to the hopper 1 and the gear pump 2, which heats a solution that has almost no fluidity at room temperature to give it fluidity, so that it can be easily coated.
次に、上記装置による作動を説明する。ホツパ
ー１内に収容された塗布液４は強制回転されてい
るギアポンプ２によりスリツトノズル３に定量的
に供給され、スリツトノズル３の吐出口３Ｂから
基材５上に吐出される。基材５は駆動装置（図示
せず）により矢印９方向に連続的に送られている
ため、スリツトノズル３からの塗布液は基材５上
に連続的に塗布され、スリツトノズル３下端の平
坦面３Ｃにより均一厚さにならされ、かつ表面が
平滑化される。このさい、ギアポンプ２は塗工巾
の全巾にわたる歯を備えているので、塗工巾の巾
方向に均一に塗布液を定量供給し、従つて巾方向
に均一な塗工厚さが得られる。塗布量（塗工厚
さ）を変えるには、スリツトノズル３と基材５と
の間隔（具体的には基材受台６の取付高さ）及び
ギアポンプ２の回転速度を調整するだけでよく、
また高粘度液に変える場合でも、スリツト間隔を
微調節するだけでよく、基材５の送り速度を変え
る必要はない。 Next, the operation of the above device will be explained. The coating liquid 4 contained in the hopper 1 is quantitatively supplied to the slit nozzle 3 by the gear pump 2 which is forcibly rotated, and is discharged onto the substrate 5 from the discharge port 3B of the slit nozzle 3. Since the base material 5 is continuously fed in the direction of arrow 9 by a drive device (not shown), the coating liquid from the slit nozzle 3 is continuously applied onto the base material 5, and the flat surface 3C at the lower end of the slit nozzle 3 is coated continuously. The thickness is made uniform and the surface is smoothed. At this time, since the gear pump 2 is equipped with teeth that span the entire width of the coating width, it can supply a constant amount of coating liquid uniformly in the width direction of the coating width, and therefore, a uniform coating thickness can be obtained in the width direction. . To change the coating amount (coating thickness), it is sufficient to simply adjust the distance between the slit nozzle 3 and the base material 5 (specifically, the mounting height of the base material holder 6) and the rotation speed of the gear pump 2.
Further, even when changing to a high viscosity liquid, it is only necessary to finely adjust the slit interval, and there is no need to change the feeding speed of the base material 5.
なお、上記実施例ではホツパー１の巾、ギアポ
ンプ２の流入口、流出口の巾、及びスリツトノズ
ル３の巾をすべて同一とし、かつギアポンプ２の
歯車の巾をこれらよりわずかに大きくしている
が、本考案はこれに限定されず、塗工厚みの均一
さが許容範囲内であれば、各部の寸法を多少変え
てもよい。また、上記装置はホツパー１及びギア
ポンプ２に加熱装置を備えているが、常温で流動
性のある溶液を塗布する場合には、この加熱装置
を設けなくてもよい。更に上記実施例では、塗布
液４としてアスフアルト混合液を、基材５として
カーペツト基布を示したが、塗布液としては、接
着剤、合成樹脂液、塗料、石こうスラリー等が、
基材としては、紙、布、プラスチツクフイルムの
如きシート状物及び鋼板、合板等の如き板状物が
使用可能である。 In the above embodiment, the width of the hopper 1, the width of the inlet and outlet of the gear pump 2, and the width of the slit nozzle 3 are all the same, and the width of the gear of the gear pump 2 is made slightly larger than these. The present invention is not limited to this, and the dimensions of each part may be slightly changed as long as the uniformity of the coating thickness is within an allowable range. Further, although the above-mentioned apparatus is equipped with a heating device in the hopper 1 and the gear pump 2, this heating device may not be provided when applying a fluid solution at room temperature. Further, in the above embodiment, an asphalt mixture was used as the coating liquid 4 and a carpet base cloth was used as the base material 5, but the coating liquid may include adhesives, synthetic resin liquids, paints, plaster slurry, etc.
As the base material, sheet-like materials such as paper, cloth, and plastic film, and plate-like materials such as steel plates, plywood, etc. can be used.
以上のように、本考案の装置は、塗布液がギア
ポンプにより巾方向に均一に、かつ一定の流量を
保つてスリツトノズルから吐出されるため、ホツ
パー内の液ヘツド或は液粘度の変動による吐出量
のバラツキがなく、その全量を均一に塗布するこ
とができる。従つてホツパーにオーバーフロー装
置を付設したり基材受台に過剰液回収装置を付設
する必要がない。また、ギアポンプの回転速度を
変えることにより、塗布液の吐出量を制御できる
ので、塗布量調節が容易であり、しかも従来の自
然流下式の装置に比して生産性を向上しうる。更
に、スリツトノズル下端の平坦面が塗布液層の厚
みを規制しかつその表面を平滑化し、25〜35度の
鋭角の角部が塗布液層からの液切を良好とするの
で、極めて平滑な塗布液層を形成することができ
る等、幾多の優れた効果を奏する。 As described above, in the device of the present invention, the coating liquid is discharged from the slit nozzle by the gear pump uniformly in the width direction and at a constant flow rate, so that the discharge amount does not change due to fluctuations in the liquid head in the hopper or the liquid viscosity. There is no variation in the amount, and the entire amount can be applied uniformly. Therefore, there is no need to attach an overflow device to the hopper or an excess liquid recovery device to the substrate holder. Furthermore, since the amount of coating liquid discharged can be controlled by changing the rotational speed of the gear pump, the amount of coating liquid can be easily adjusted, and productivity can be improved compared to conventional gravity flow type devices. Furthermore, the flat surface at the bottom of the slit nozzle regulates the thickness of the coating liquid layer and smooths its surface, and the sharp corners of 25 to 35 degrees allow for good drainage from the coating liquid layer, resulting in extremely smooth coating. It has many excellent effects such as being able to form a liquid layer.
図面は本考案の１実施例を示したものであつ
て、第１図は正面図、第２図は側面断面図、第３
図は１部拡大側面断面図である。
１……ホツパー、２……ギアポンプ、２Ａ……
流入口、２Ｂ……流出口、３……スリツトノズ
ル、３Ｂ……吐出口、３Ｃ……平坦面、４……塗
布液、５……基材、８……歯車。
The drawings show one embodiment of the present invention, in which Fig. 1 is a front view, Fig. 2 is a side sectional view, and Fig. 3 is a side sectional view.
The figure is a partially enlarged side sectional view. 1...Hopper, 2...Gear pump, 2A...
Inlet, 2B... Outlet, 3... Slit nozzle, 3B... Discharge port, 3C... Flat surface, 4... Coating liquid, 5... Base material, 8... Gear.
Claims (1)
度液を収容するホツパーと、ギアポンプと、高粘
度液を基材上に供給する吐出口を持つたスリツト
ノズルとが上方から順次に連結されており、前記
ギアポンプは１対の歯車と流入口と流出口を有
し、該歯車の歯巾と流入口及び流出口の巾とは、
前記スリツトノズルの吐出口巾にほぼ等しくなつ
ており、前記スリツトノズルはその下端に、基材
上に塗布された高粘度液層に接触し平滑化する平
坦面を有し、該平坦面の下流側の角部は25〜35度
の鋭角となつていることを特徴とする塗工装置。 In an apparatus for applying a high viscosity liquid onto a substrate, a hopper containing the high viscosity liquid, a gear pump, and a slit nozzle having a discharge port for supplying the high viscosity liquid onto the substrate are sequentially connected from above. , the gear pump has a pair of gears, an inlet and an outlet, and the tooth width of the gear and the widths of the inlet and outlet are as follows:
The width of the discharge opening of the slit nozzle is approximately equal to that of the slit nozzle. A coating device characterized by having sharp corners of 25 to 35 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12483283U JPS6031375U (en) | 1983-08-10 | 1983-08-10 | Coating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12483283U JPS6031375U (en) | 1983-08-10 | 1983-08-10 | Coating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6031375U JPS6031375U (en) | 1985-03-02 |
| JPH0337744Y2 true JPH0337744Y2 (en) | 1991-08-09 |
Family
ID=30284425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12483283U Granted JPS6031375U (en) | 1983-08-10 | 1983-08-10 | Coating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6031375U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002210403A (en) * | 2001-01-19 | 2002-07-30 | Nippon Kyushutai Gijutsu Kenkyusho:Kk | Coating apparatus for liquid permeable sheet like base material |
| JP5250299B2 (en) * | 2008-04-21 | 2013-07-31 | 日東電工株式会社 | Die coating apparatus and die coating method |
-
1983
- 1983-08-10 JP JP12483283U patent/JPS6031375U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6031375U (en) | 1985-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2439425C (en) | Spattering apparatus | |
| US3192895A (en) | Web coating apparatus | |
| US7101438B2 (en) | Coater for dispersed slurry | |
| JPS58177179A (en) | Apparatus for uniformly applying prescribable liquid amount on roller or flat strip material | |
| AU2002234428A1 (en) | Spattering apparatus | |
| US3348526A (en) | Coating apparatus for coating webs | |
| US5031569A (en) | Apparatus for coating a travelling web | |
| EP0784516B1 (en) | Tension ascension knife coating method | |
| CA1054873A (en) | Coating method and apparatus therefor | |
| US4283443A (en) | Method and apparatus for coating webs | |
| JP2530202B2 (en) | Application method | |
| JPH0337744Y2 (en) | ||
| US5520889A (en) | Method for controlling the discharge of granules from a nozzle onto a coated sheet | |
| KR100324050B1 (en) | Apparatus and method for applying coating liquid to surface | |
| JPS5948146B2 (en) | Coating device with blade type applicator | |
| JP4310855B2 (en) | Method and apparatus for producing ceramic green sheet | |
| US6228431B1 (en) | Curtain feed method for a gravure process | |
| JPS5832776Y2 (en) | flow coater | |
| JPH08216373A (en) | Coating feeder of photogravure cylinder | |
| JPS6143102B2 (en) | ||
| JP2667031B2 (en) | Roller curtain coating method | |
| JPH0653245B2 (en) | Coating equipment | |
| JPH0323335Y2 (en) | ||
| JPH0116551B2 (en) | ||
| JPS6218284Y2 (en) |