JPH04256460A - Coating device for reactive type urethane hot melt adhesive - Google Patents
Coating device for reactive type urethane hot melt adhesiveInfo
- Publication number
- JPH04256460A JPH04256460A JP10217791A JP10217791A JPH04256460A JP H04256460 A JPH04256460 A JP H04256460A JP 10217791 A JP10217791 A JP 10217791A JP 10217791 A JP10217791 A JP 10217791A JP H04256460 A JPH04256460 A JP H04256460A
- Authority
- JP
- Japan
- Prior art keywords
- rollers
- coating
- roller
- adhesive
- hot melt
- 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
- 238000000576 coating method Methods 0.000 title claims abstract description 37
- 239000011248 coating agent Substances 0.000 title claims abstract description 34
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 239000004831 Hot glue Substances 0.000 title claims abstract description 13
- 239000011261 inert gas Substances 0.000 claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims abstract description 9
- 230000001070 adhesive effect Effects 0.000 claims abstract description 9
- 229920006362 Teflon® Polymers 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 26
- 239000007789 gas Substances 0.000 claims description 9
- 239000004809 Teflon Substances 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract 1
- 239000004823 Reactive adhesive Substances 0.000 description 41
- 239000000463 material Substances 0.000 description 12
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 238000012369 In process control Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分類】本発明は、自動車、電気機器等、
また、家具木工、建材等のうち、特に玄関扉、浴室、キ
ッチン等の扉、フリーアクセスフロアー等に使用される
耐熱、耐寒、耐湿、全天候、及び可とう性を要求される
素材の表面接着剤として使用される、反応型ウレタンホ
ットメルト接着剤の塗布装置の改良に関するものである
。[Industrial usage classification] The present invention applies to automobiles, electrical equipment, etc.
In addition, surface adhesives for materials that require heat resistance, cold resistance, moisture resistance, all-weather resistance, and flexibility are used for furniture woodworking, building materials, etc., especially entrance doors, bathroom doors, kitchen doors, raised floors, etc. This invention relates to an improvement of a coating device for reactive urethane hot melt adhesive used as a hot melt adhesive.
【０００２】0002
【従来の技術】従来この種技術は、実願昭５６−４３９
０９号、特公平−４３５８５号、実公昭６４−１０１４
号等の公報に記載開示されている。[Prior art] Conventionally, this type of technology was
No. 09, Special Publication No. 43585, Jikko No. 64-1014
It is described and disclosed in the official gazette such as No.
【０００３】しかしいづれも大気雰囲気中で溶融塗布可
能な普通のホットメルト接着剤を使用するための塗布装
置であって、反応型ウレタンホットメルト接着剤の塗布
装置ではないために、この種従来の塗布装置で塗布作業
を実施する場合は、反応型ウレタンホットメルト接着剤
（以下反応型接着剤と称す）の特性を組成する主成分で
あるウレタンプレポリマーが経時後は大気雰囲気中の湿
気と架橋反応を示すため、大気雰囲気中で塗布する場合
は大気中の湿気と反応して増粘して塗布作業中に、塗布
ローラ及びドクターローラ（以下両ローラと称する場合
がある）の上部中央凹部に一時貯溜する反応型接着剤と
、両ローラ外周表面に付着残存する反応型接着剤は、作
業開始時から３時間ないし４時間で、特に、両ローラの
外周表面に付着した反応型接着剤は硬化現象で被加工素
材の塗布面に塗布「むら」が発生するか、または、塗布
作業が不可能となる場合があった。However, these are coating devices for using ordinary hot melt adhesives that can be melted and coated in the atmosphere, and are not coating devices for reactive urethane hot melt adhesives. When performing coating work using a coating device, the urethane prepolymer, which is the main component that makes up the properties of reactive urethane hot melt adhesives (hereinafter referred to as reactive adhesives), crosslinks with moisture in the atmosphere after a period of time. Because it shows a reaction, when coating in the atmosphere, it reacts with the moisture in the atmosphere and thickens, and during the coating process, it forms in the upper center recess of the coating roller and doctor roller (hereinafter sometimes referred to as both rollers). The reactive adhesive that is temporarily stored and the reactive adhesive that remains attached to the outer peripheral surfaces of both rollers will harden within 3 to 4 hours from the start of work, especially the reactive adhesive that has adhered to the outer peripheral surfaces of both rollers. This phenomenon sometimes caused uneven coating on the coated surface of the processed material, or made the coating process impossible.
【０００４】そのために作業を一時中断して両ローラの
外周表面に付着硬化した反応型接着剤を完全に清掃除去
する必要があり、また、被加工素材の塗布面の塗布「む
ら」の検査を必要とし工程管理の不安定、清掃除去のた
めの作業時間の空費等能率の向上を不可能にする諸条件
が発生していた。[0004] For this purpose, it is necessary to temporarily stop the work and completely clean and remove the reactive adhesive that has adhered and hardened on the outer peripheral surfaces of both rollers, and also to inspect the coated surface of the workpiece for ``unevenness.'' Various conditions have arisen that make it impossible to improve efficiency, such as unstable process control and wasted work time for cleaning and removal.
【０００５】[0005]
【発明が解決しようとする課題】本発明は前述のとおり
従来からの公知技術による反応型接着剤の塗布作業は、
大気雰囲気中で実施するため大気中の湿気及び天候によ
る湿気の増減等によって両ローラの上部中央凹部に一時
貯溜する反応型接着剤及び外周表面に付着して残存反応
型接着剤は、硬化現象が発生し易く作業開始から３時間
ないし４時間経時した時点では完全に硬化するため作業
継続も不可能となる、また、気象条件によっては作業開
始当初から一部硬化現象によっても被塗布表面に塗布「
むら」が発生し、即ち、塗布量の不均一現象の原因とも
なっていた。[Problems to be Solved by the Invention] As mentioned above, the present invention is based on the application of a reactive adhesive using conventionally known techniques.
Since the process is carried out in the atmosphere, the reactive adhesive that temporarily accumulates in the upper center recess of both rollers and the reactive adhesive that remains on the outer peripheral surface due to the humidity in the atmosphere and the increase or decrease of humidity due to the weather may cause a hardening phenomenon. It is easy for this to occur and the work will be completely cured within 3 to 4 hours after the start of work, making it impossible to continue working.Furthermore, depending on the weather conditions, some of the hardening phenomenon may occur from the beginning of work, causing the surface to be coated to harden.
This also causes "unevenness", ie, non-uniform coating amount.
【０００６】そのために作業開始当初から被加工素材の
塗布面の注意検査を実施し前述のとおり作業開始から３
時間ないし４時間経時後には、両ローラ外周表面に付着
硬化した反応型接着剤を完全に清掃除去するために作業
を一時中断して除去作業を実施する、その際に両ローラ
の外周表面を損傷する等の事故も発生する危険もあり、
また、前記大気雰囲気中の湿気と反応するために気象条
件によって変化するため作業時間の制約を受けて連続運
転は不可能であり、一時作業を中断して両ローラの清掃
除去作業のための時間の空費と場合によっては、両ロー
ラの外周表面の損傷の原因ともなり両ローラの取り外し
修理を必要とする事故の発生となり思わぬ損害をうけ、
そのために製品の不安定、工程管理の困難、能率の向上
を阻害する等の原因ともなっていた。For this purpose, a careful inspection of the coated surface of the workpiece material is carried out from the beginning of the work, and as mentioned above,
After 4 to 4 hours, the work will be temporarily interrupted to completely clean and remove the hardened reactive adhesive that has adhered to the outer circumferential surfaces of both rollers.During this process, the outer circumferential surfaces of both rollers will be damaged. There is a risk of accidents such as
In addition, since it reacts with the moisture in the atmosphere and changes depending on the weather conditions, continuous operation is impossible due to work time constraints, and the work is temporarily suspended to allow time for cleaning and removing both rollers. In some cases, it may cause damage to the outer peripheral surface of both rollers, resulting in an accident that requires removal and repair of both rollers, resulting in unexpected damage.
This has caused product instability, difficulty in process control, and impeded efficiency improvements.
【０００７】[0007]
【課題を解決するための手段】前述の課題を解決するた
めに本発明は、特願平２年第３３９４９４号による「反
応型熱可塑性合成樹脂の熱溶解溶融装置」の出願によっ
て大気雰囲気中の湿気を遮断して固形の反応型ウレタン
ホットメルトを熱溶解溶融した反応型接着剤を付設のギ
ヤーポンプによって、大気雰囲気から遮断して両ローラ
の上部中央凹部に噴出して一時貯溜し、かつ、前記両ロ
ーラの外周及び塗布作業に支障のない範囲で下部も遮蔽
板で覆い、両ローラの外周表面に不活性ガスを噴出し遮
蔽板の内部に、前記不活性ガスを充満させて大気雰囲気
中の湿気との接触を遮断して、両ローラの上部中央凹部
に一時貯溜し、また両ローラの外周表面に付着した反応
接着剤の反応硬化現象を極力防止し、また、両ローラの
外周表面にテフロンコート（ケミコート）を施工して反
応型接着剤の転着性を向上させ、なお、作業終了後の両
ローラの外周表面に付着し硬化した反応型接着剤の清掃
作業を容易にし、かつ、両ローラ外周表面の清掃除去作
業の際に両ローラの外周表面を損傷する事故の発生を完
全に防止する。[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention is based on the application of Japanese Patent Application No. 339494 of 1994 for ``Apparatus for hot melting and melting of reactive thermoplastic synthetic resin''. A reactive adhesive obtained by thermally melting a solid reactive urethane hot melt while blocking moisture is sprayed into the upper center recess of both rollers using an attached gear pump and temporarily stored in the upper center recess of both rollers. The outer periphery of both rollers and the lower part thereof are covered with a shielding plate to the extent that it does not interfere with the coating work, and an inert gas is jetted onto the outer peripheral surface of both rollers, and the interior of the shielding plate is filled with the inert gas to remove the air from the atmosphere. It blocks contact with moisture and temporarily stores it in the upper central recess of both rollers, and prevents as much as possible the reaction hardening phenomenon of the reactive adhesive attached to the outer peripheral surfaces of both rollers. A coat (chemi coat) is applied to improve the transferability of the reactive adhesive, and it also makes it easier to clean the reactive adhesive that has adhered to and hardened on the outer peripheral surfaces of both rollers after work is completed. To completely prevent the occurrence of an accident that damages the outer peripheral surfaces of both rollers during cleaning and removal work on the outer peripheral surfaces of the rollers.
【０００８】[0008]
【作用】作用について添付図面に基づいて説明する。門
型本体１に、両端部を軸受によって支持された塗布ロー
ラ２と対向して反応型接着剤の塗布量の調整を可能とす
る、ドクターローラ３を配設し、かつ、両ローラ２・３
はそれぞれ回転速度が変更可能になるように駆動源から
駆動される。前記両ローラ２・３の上部中央凹部に本体
１の上部に保持された噴出管４を塗布幅に適応して１〜
２本配設する。[Operation] The operation will be explained based on the attached drawings. A doctor roller 3 is disposed on the gate-shaped main body 1, and the doctor roller 3 faces the application roller 2 whose both ends are supported by bearings to enable adjustment of the amount of reactive adhesive applied.
are each driven by a drive source so that the rotational speed can be changed. The ejection pipe 4 held at the upper part of the main body 1 is placed in the upper center recess of both the rollers 2 and 3 according to the coating width.
Install two.
【０００９】両ローラ２・３の外周表面上端部に仕切り
板５を対称に装着し、両ローラ２・３の上部中央凹部に
一時貯溜する反応型接着剤の漏れ及び両ローラ２・３の
塗布幅及びドクターローラ３の反応型接着剤の還流を調
整する。Partition plates 5 are installed symmetrically on the upper ends of the outer circumferential surfaces of both rollers 2 and 3 to prevent leakage of the reactive adhesive temporarily stored in the upper center recess of both rollers 2 and 3 and application of both rollers 2 and 3. Adjust the width and the reflux of the reactive adhesive of the doctor roller 3.
【００１０】門型本体１の上部取付板１２に左右対称に
蝶番６・７を所要個数固着し他方に遮蔽板８・９を装着
し、前記両ローラ２・３の外周を二者組み合せて完全に
覆い遮蔽するようにし、下部面も接着作業に支障のない
範囲で極力遮蔽し、かつ、前記遮蔽板８・９の左右側面
下部にガス噴出管１３・１４を固着し、かつ、前記ガス
噴出管１３・１４には吹付け穴１５を所要の個数配設す
る、一方前記両ローラ２・３の外周表面にテフロンコー
ト１０・１１を施工する。A required number of hinges 6 and 7 are fixed symmetrically to the upper mounting plate 12 of the gate-shaped main body 1, and shielding plates 8 and 9 are attached to the other side, and the outer circumferences of both the rollers 2 and 3 are combined to form a complete structure. The lower surface is also shielded as much as possible without interfering with the bonding work, and the gas jetting pipes 13 and 14 are fixed to the lower left and right sides of the shielding plates 8 and 9. A required number of spray holes 15 are provided in the tubes 13 and 14, and Teflon coats 10 and 11 are applied to the outer peripheral surfaces of both the rollers 2 and 3.
【００１１】前述のとおり遮蔽板８・９の両側面下部に
装着したガス噴出管１３・１４の吹付け穴１５から不活
性ガスを両ローラ２・３の外周表面に吹付け、前記遮蔽
板８・９の内部に不活性ガスが充満するために、両ロー
ラ２・３上部中央凹部に移送され一時貯溜され、また、
両ローラ２・３の外周表面に付着した反応型接着剤は大
気雰囲気中の湿気に接触することもなく両ローラ２・３
の外周表面に付着した反応型接着剤も極力接触を防止が
可能となり、また、両ローラ２・３の外周表面にテフロ
ンコート１０・１１を施工したために、反応型接着剤の
転着性も一段と向上し、作業終了後に両ローラ２・３の
外周表面に付着残存し硬化した反応型接着剤の清掃除去
作業も簡単で容易となり、かつ、両ローラ２・３の外周
表面の損傷は完全に防止する。As described above, inert gas is sprayed onto the outer circumferential surfaces of both rollers 2 and 3 from the blowing holes 15 of the gas jet pipes 13 and 14 attached to the lower portions of both sides of the shielding plates 8 and 9.・Since the inside of roller 9 is filled with inert gas, it is transferred to the central recess at the top of both rollers 2 and 3 and is temporarily stored.
The reactive adhesive attached to the outer peripheral surfaces of both rollers 2 and 3 does not come into contact with moisture in the atmosphere.
Contact with the reactive adhesive attached to the outer peripheral surface of the rollers can be prevented as much as possible, and since the outer peripheral surfaces of both rollers 2 and 3 are coated with Teflon coats 10 and 11, the transferability of the reactive adhesive is further improved. This makes it easier to clean and remove the cured reactive adhesive that remains on the outer circumferential surfaces of both rollers 2 and 3 after work is completed, and damage to the outer circumferential surfaces of both rollers 2 and 3 is completely prevented. do.
【００１２】0012
【実施例】本発明の一実施例を図面によって説明する。
門型に形成された門型本体１の左右門柱部に、一対の左
右両端に軸部を設け軸受を装着し、前記門型本体１の左
右門柱部に支持され自在に回動する塗布ローラ２とドク
ターローラ３を装着する。該両ローラ２・３はそれぞれ
駆動源からの駆動によって回転数を任意制御可能となる
ように装着されている、また、ドクターローラ３の両端
軸受部には超微調整可能なエヤーシリンダを左右対称に
装着し（図示なし）適宜反応型接着剤の塗布量の調整を
実施する以上は公知技術を採用している。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. A pair of shaft parts are provided at both left and right ends of the left and right gate pillars of the gate-shaped main body 1 formed in a gate shape, and bearings are mounted thereon, and an application roller 2 is supported by the left and right gate pillars of the gate-shaped main body 1 and rotates freely. and attach Doctor Roller 3. Both rollers 2 and 3 are each mounted so that the rotation speed can be arbitrarily controlled by driving from a drive source, and air cylinders that can be ultra-finely adjusted are installed symmetrically on both end bearings of the doctor roller 3. (not shown) and adjust the amount of reactive adhesive applied as appropriate, using known techniques.
【００１３】両ローラ２・３の外周表面には、本発明者
が種々試作、試験の結果テフロンコート（ケミコート）
１０・１１をそれぞれ被加工素材の種類に適した厚さに
施工して被加工素材の塗布面への転着性を向上させ、ま
た、作業終了後に、両ローラ２・３の外周表面に付着残
存し硬化した反応型接着剤の清掃及び除去を簡単に実施
することを可能とし、また、残存する硬化した反応型接
着剤を除去する際に両ローラ２・３の外周表面を損傷す
る危険を完全に防止する。The outer circumferential surfaces of both rollers 2 and 3 are coated with Teflon coat (chemicoat) as a result of various trial production and tests conducted by the present inventor.
10 and 11 are applied to a thickness suitable for the type of material to be processed to improve the adhesion of the material to the coated surface, and also to adhere to the outer peripheral surfaces of both rollers 2 and 3 after the work is completed. This makes it possible to easily clean and remove the remaining cured reactive adhesive, and also eliminates the risk of damaging the outer peripheral surfaces of both rollers 2 and 3 when removing the remaining cured reactive adhesive. Completely prevent.
【００１４】門型本体１の上部に装着した取付板１２に
所要の蝶番６・７を左右対称に固着し、該蝶番６・７に
遮蔽板８・９を装着する、該遮蔽板８・９は、両ローラ
２・３の外周、即ち、上面、前後面、左右側面及び塗布
作業に支障のない範囲で下面も組み合せ遮蔽し、かつ、
左右両側面の下部にガス噴出管１３・１４を装着し、該
ガス噴出管１３・１４にはガス導入口２０・２０’に調
圧した不活性ガスタンク（図示なし）から不活性ガスを
導入し吹付け穴（複数個以上）１５から、前記両ローラ
２・３の外周表面に対向して吹付け可能に配設し、門型
本体１の中間部に保持板２１を固着し、該保持板２１に
左右対称に保持棒１６・１７を所要の個数配設し、前記
遮蔽板８・９を保持する。Required hinges 6 and 7 are symmetrically fixed to the mounting plate 12 attached to the upper part of the gate-shaped main body 1, and shielding plates 8 and 9 are attached to the hinges 6 and 7. The outer peripheries of both rollers 2 and 3, that is, the upper surfaces, front and rear surfaces, left and right sides, and the lower surfaces are also combined and shielded to the extent that it does not interfere with the coating operation, and,
Gas ejection pipes 13 and 14 are installed at the bottom of both left and right sides, and inert gas is introduced into the gas inlet ports 20 and 20' from a pressure-regulated inert gas tank (not shown). A holding plate 21 is fixed to the middle part of the gate-shaped main body 1, and the holding plate 21 is arranged so as to be able to be sprayed from the spraying holes (a plurality or more) 15 facing the outer circumferential surfaces of the rollers 2 and 3. A required number of holding rods 16 and 17 are arranged symmetrically on 21 to hold the shielding plates 8 and 9.
【００１５】前述のとおり門型本体１の上部取付板１２
に左右対称に所要の個数を固着した蝶番６・７に係止さ
れた遮蔽板８・９は支持棒１６・１７によって保持され
両ローラ２・３の外周全面を遮蔽され、かつ、下面も塗
布作業に支障のない範囲で組み合せ遮蔽し、かつ、該遮
蔽板８・９の左右側面下部のガス噴出管１３・１４を装
着し、該ガス噴出管１３・１４の吹付け穴１５の複数個
以上から調圧された不活性ガスを両ローラ２・３の外周
表面に吹付け、従って前記遮蔽板８・９の内部に不活性
ガスが充満する。As mentioned above, the upper mounting plate 12 of the portal body 1
Shielding plates 8 and 9 are held by support rods 16 and 17, and are held by hinges 6 and 7, which are fixed in a required number symmetrically on the left and right sides, and shield the entire outer periphery of both rollers 2 and 3, and coat the lower surfaces as well. Combining and shielding within a range that does not interfere with work, and installing the gas jetting pipes 13 and 14 at the lower left and right sides of the shielding plates 8 and 9, and installing a plurality of or more blowing holes 15 of the gas jetting pipes 13 and 14. An inert gas whose pressure is regulated is sprayed onto the outer circumferential surfaces of both rollers 2 and 3, so that the insides of the shielding plates 8 and 9 are filled with the inert gas.
【００１６】他方前述の反応型熱可塑性合成樹脂の熱溶
解溶融装置に付設されたギヤーポンプ及び移送管（図示
なし）から噴出管４に移送された反応型接着剤は、両ロ
ーラ２・３の上部中央凹部に噴出一時貯溜された反応型
接着剤は、両ローラ上部端部に左右対称に配設され、か
つ、塗布幅に対応し保持板２１に装着し、両ローラ２・
３の上部外周表面当接し、両ローラ２・３の回転による
摩耗に対しては上部の長穴１９（複数個以上）によって
調整し、両ローラ２・３の上部中央凹部に一時貯溜する
反応型接着剤の漏れを防止し、かつ、塗布幅を規制し、
かつ、ドクターローラ３の外周表面に付着した反応型接
着剤の回帰を助成する、また、被加工素材の塗布幅が増
大する場合は、前記の噴出管４を塗布幅に対応して増設
することも簡単に容易に可能である。On the other hand, the reactive adhesive transferred from the gear pump and transfer pipe (not shown) attached to the above-mentioned reactive thermoplastic synthetic resin thermal melting device to the ejection pipe 4 is transferred to the upper part of both rollers 2 and 3. The reactive adhesive that is ejected and temporarily stored in the central recess is arranged symmetrically at the upper ends of both rollers, and is attached to the holding plate 21 in a manner corresponding to the application width.
3, and the wear caused by the rotation of both rollers 2 and 3 is adjusted by the elongated holes 19 (more than one) in the upper part, and the reaction type is temporarily stored in the upper center recess of both rollers 2 and 3. Prevents adhesive leakage and regulates application width.
In addition, it assists the return of the reactive adhesive attached to the outer peripheral surface of the doctor roller 3, and when the coating width of the workpiece material increases, the above-mentioned ejection pipe 4 can be added in accordance with the coating width. is also easily possible.
【００１７】被塗布素材に反応型接着剤を塗布する場合
に、塗布ローラ２の外周表面に多少加圧する場合は門型
本体１の下部基板２４を上方に加圧し、特に被加工素材
が薄物の場合は、前記塗布ローラ２の外周表面から離脱
する際に、該ローラ２の外周表面に巻き込まれる可能性
があるためにスクレーパー２５を所要の個数装着するこ
とも簡単に可能である。When applying a reactive adhesive to a material to be coated, if some pressure is to be applied to the outer circumferential surface of the coating roller 2, the lower substrate 24 of the portal body 1 should be pressed upward, especially if the material to be processed is thin. In this case, it is possible to easily install a required number of scrapers 25 because there is a possibility that the scrapers 25 will be caught in the outer peripheral surface of the application roller 2 when the scrapers 25 are separated from the outer peripheral surface of the application roller 2.
【００１８】本発明による塗布装置による反応型ウレタ
ンホットメルト接着剤の特性は通常表面部材を接着する
場合は、熱プレスは不用のため、塗布ローラ２の下部基
板２４に、タッチロール及び搬送コンベアーを設置し搬
送途中で普通の簡単なロールプレスを設置し、表面部材
をプレス接着し、また、途中で反転して再度表面に反応
型接着剤を塗布し再度表面部材を加圧プレスすることも
簡単に実施することも可能であり、溶解した反応型接着
剤を大気雰囲気から遮断して湿気を遮断して反応型接着
剤の硬化現象及びそのための反応型接着剤の劣悪化を防
止して、一貫した流れ作業を実施して長時間の作業が可
能となるために作業能率の向上は飛躍的増大し、完成品
の安定化及び作業要員の削減も可能となる。Characteristics of the reactive urethane hot melt adhesive produced by the coating apparatus of the present invention are that when bonding surface members, a heat press is not required, so a touch roll and a conveyor are attached to the lower substrate 24 of the coating roller 2. It is also easy to set up a simple roll press and press-bond the surface material while it is being installed and transported, and then turn it over midway, apply the reactive adhesive to the surface again, and press the surface material again. It is also possible to carry out the process in a consistent manner by shielding the dissolved reactive adhesive from the atmosphere and blocking moisture to prevent the curing phenomenon of the reactive adhesive and the resulting deterioration of the reactive adhesive. Since it becomes possible to carry out assembly line work and work for a long time, the improvement in work efficiency increases dramatically, and it also becomes possible to stabilize the finished product and reduce the number of work personnel.
【００１９】[0019]
【発明の効果】本発明の反応型ポリウレタンホットメル
ト接着剤の塗布装置を提供することによって、大気雰囲
気中の湿気に反応して短時間に反応型接着剤が硬化現象
を誘発し接着ローラ及びドクターローラの外周表面に硬
化した反応型接着剤が付着し固着し、そのために被加工
素材の塗布面に塗布「むら」が発生を防止するために、
両ローラの四周を極度に遮蔽し、かつ、内部に不活性ガ
スを噴出し、従って内部を不活性ガスで充満させて大気
雰囲気の湿気を遮断し、両ローラ上部中央凹部に一時貯
溜し両ローラの外周表面に付着した反応型接着剤をそれ
ぞれ硬化及び劣悪化を極力防止して本装置の長期連続運
転を可能とする。[Effects of the Invention] By providing the reactive polyurethane hot melt adhesive coating device of the present invention, the reactive adhesive reacts with moisture in the atmosphere to induce a hardening phenomenon in a short period of time. In order to prevent the cured reactive adhesive from adhering and sticking to the outer peripheral surface of the roller, resulting in uneven coating on the coated surface of the workpiece,
The four circumferences of both rollers are extremely shielded, and inert gas is ejected into the interior, filling the interior with inert gas to block out moisture in the atmosphere, and temporarily storing it in the central recess at the top of both rollers. The reactive adhesive adhered to the outer peripheral surface of the device is prevented from curing and deterioration as much as possible, thereby enabling long-term continuous operation of the device.
【００２０】本装置の提供によって反応型ウレタンホッ
トメルト接着剤の特性である高接着力、耐熱、耐寒、耐
湿、全天候及び可とう性と幅広い接着性を十分に発揮可
能となり、また、連続塗布作業も十分可能とした、また
、本装置は固形の反応型ウレタンホットメルトの熱溶解
溶融の時点から不活性ガスを封入して熱溶解され必要な
塗布量に対応してギヤーポンプによって移送されるため
に、本塗布装置においても両ローラの外周を極力遮蔽し
て内部に不活性ガスを噴出充満させるために、大気雰囲
気の湿気を遮断して、湿気に反応して反応型接着剤の硬
化現象を極力防止するために長期連続運転を可能とする
。[0020] By providing this device, it is possible to fully demonstrate the characteristics of reactive urethane hot melt adhesives, such as high adhesive strength, heat resistance, cold resistance, moisture resistance, all-weather and flexibility, and a wide range of adhesion properties, and it is also possible to perform continuous application work. In addition, this device encloses an inert gas from the point of hot melting of solid reactive urethane hot melt and transfers it by a gear pump according to the required coating amount. In this application device as well, in order to shield the outer periphery of both rollers as much as possible and fill the interior with inert gas, moisture in the atmosphere is blocked and the phenomenon of curing of the reactive adhesive in response to moisture is minimized. To prevent this, long-term continuous operation is possible.
【００２１】本装置に付設して搬送用コンベアー及び簡
単なロールプレを設置することによって、本反応型接着
剤の特性である初期接着力の強力さを利用して、表面部
材の接着も可能となる、また、追加の搬送コンベアーを
増設することによって、表裏両面に表面部材の接着も可
能である。[0021] By installing a conveyor and a simple roll press attached to this device, it becomes possible to bond surface materials by utilizing the strong initial adhesive force that is a characteristic of this reactive adhesive. Furthermore, by adding an additional conveyor, it is possible to bond surface members to both the front and back surfaces.
【００２２】本装置の塗布ローラ及びドクターローラの
外周表面にテフロンコートを施工することによって、特
に、塗布ローラの外周表面からの被加工素材の塗布面へ
の反応型接着剤の転着性が向上し、また作業終了後の両
ローラ外周表面に付着し硬化した残存する反応型接着剤
の清掃除去の際も両ローラからの剥離除去作業も簡単で
容易になり、従来から前記の作業の際に、両ローラの外
周表面を損傷して最悪の場合は両ローラの交換を必要と
し思わぬ損害を受けそのために作業の停止等の問題が発
生していたが、テフロンコートを施工することによって
両ローラの外周表面は被覆されるために完全に前記の危
険は防止され反応型接着剤の転着性は格段に向上する。By applying a Teflon coat to the outer peripheral surfaces of the applicator roller and doctor roller of this device, the transferability of the reactive adhesive from the outer peripheral surface of the applicator roller to the coated surface of the workpiece material is particularly improved. In addition, when cleaning and removing the residual reactive adhesive that has adhered to and hardened on the outer circumferential surfaces of both rollers after the work is completed, the work of peeling it off from both rollers becomes easier and easier. However, by applying a Teflon coat, both rollers could be replaced. Since the outer peripheral surface of the adhesive is coated, the above-mentioned danger is completely prevented and the transferability of the reactive adhesive is greatly improved.
【００２３】本装置の提供によって長時間の塗布作業が
可能となり、両ローラの清掃付着硬化した反応型接着剤
の除去作業も両ローラの外周表面の損傷に対する考慮を
必要とせず、また、付設の設備を追加増設することによ
って反応型ウレタンホットメルト接着剤の特性を十分に
利用することが可能な塗布装置を提供する、そのため作
業の一貫性を確保し、作業を中途で中止しての清掃除去
作業も不用となり、また、そのために長時間連続作業も
実施でき、計画、工程管理も容易となり、完成品の安定
化、能率の向上及び人員の削減等々の効果は顕著である
。[0023] By providing this device, long-time application work is possible, and the work of cleaning and removing the hardened reactive adhesive on both rollers does not require consideration of damage to the outer circumferential surfaces of both rollers. By adding additional equipment, we provide a coating device that can fully utilize the properties of reactive urethane hot melt adhesives, ensuring work consistency and eliminating the need to stop work midway for cleaning and removal. This eliminates the need for additional work, allows continuous work to be carried out for long periods of time, facilitates planning and process control, and has significant effects such as stabilizing finished products, improving efficiency, and reducing the number of personnel.
【００２４】[0024]
【図１】本装置の要部断面図である。FIG. 1 is a sectional view of essential parts of the present device.
【図２】ガス噴出管の立体図である。FIG. 2 is a three-dimensional view of a gas ejection pipe.
【図３】反応型接着剤の仕切り板の立体図である。FIG. 3 is a three-dimensional view of a partition plate of a reactive adhesive.
１ 門型本体 ２ 塗布ローラ ３ ドクラーローラ ４ 噴出管 ５ 仕切り板 ６・７ 蝶番 ８・９ 遮蔽板 １０・１１ テフロンコート １３・１４ ガス噴出管 １５ 吹付け穴 ２５ スクレーパー 1 Gate-shaped main body 2 Application roller 3 Dokler Roller 4. Ejection pipe 5 Partition board 6.7 Hinge 8.9 Shielding plate 10/11 Teflon coat 13/14 Gas ejection pipe 15 Blow hole 25 Scraper
Claims (2)
で離反するように回動される一対のドクターローラ３の
上部中央凹部に溶融された接着剤を一時貯溜するように
した接着剤塗布ブロックを構成した塗布装置において、
前記塗布ローラ２とドクターローラ３の外周、即ち、上
面、左右前後四面及び塗布作業に支障のない範囲内で下
面も、遮蔽板８・９で遮蔽し、かつ、前記遮蔽板８・９
の左右両側面下部にそれぞれガス噴出管１３・１４を装
着し、吹付け穴１５から両ローラ２・３の外周表面に不
活性ガスを吹付け、前記遮蔽板８・９の内部に不活性ガ
スを充満させることを特徴とする反応型ウレタンホット
メルト接着剤の塗布装置。1. Adhesive application in which molten adhesive is temporarily stored in the upper center recess of application rollers 2 facing each other and a pair of doctor rollers 3 rotated so as to separate from each other on opposing surfaces. In the coating device configured as a block,
The outer peripheries of the coating roller 2 and doctor roller 3, that is, the upper surfaces, the left, right, front, and rear surfaces, and the lower surfaces within a range that does not hinder the coating operation are also shielded with shielding plates 8 and 9, and the shielding plates 8 and 9
Gas jetting pipes 13 and 14 are attached to the lower portions of both left and right sides of the rollers, and inert gas is sprayed from the spray holes 15 onto the outer peripheral surfaces of both rollers 2 and 3, and the inert gas is injected into the inside of the shielding plates 8 and 9. A reactive urethane hot melt adhesive application device characterized by being filled with.
塗布ローラ２とドクターローラ３の外周表面にテフロン
コート（ケミコート）１０・１１を施工したことを特徴
とする請求項１項記載の反応型ウレタンホットメルト接
着剤の塗布装置。2. The coating device according to claim 1, comprising:
2. The reactive urethane hot melt adhesive coating apparatus according to claim 1, wherein Teflon coats (chemi coats) 10 and 11 are applied to the outer peripheral surfaces of the coating roller 2 and the doctor roller 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10217791A JP2689187B2 (en) | 1991-02-06 | 1991-02-06 | Reactive urethane hot melt adhesive application device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10217791A JP2689187B2 (en) | 1991-02-06 | 1991-02-06 | Reactive urethane hot melt adhesive application device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04256460A true JPH04256460A (en) | 1992-09-11 |
| JP2689187B2 JP2689187B2 (en) | 1997-12-10 |
Family
ID=14320406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10217791A Expired - Fee Related JP2689187B2 (en) | 1991-02-06 | 1991-02-06 | Reactive urethane hot melt adhesive application device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2689187B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012161967A (en) * | 2011-02-04 | 2012-08-30 | Ricoh Co Ltd | Image forming apparatus and processing solution applying device |
-
1991
- 1991-02-06 JP JP10217791A patent/JP2689187B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012161967A (en) * | 2011-02-04 | 2012-08-30 | Ricoh Co Ltd | Image forming apparatus and processing solution applying device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2689187B2 (en) | 1997-12-10 |
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