JP2002103344A - Apparatus for manufacturing casting polyamide resin and washing method therefor - Google Patents
Apparatus for manufacturing casting polyamide resin and washing method thereforInfo
- Publication number
- JP2002103344A JP2002103344A JP2000298686A JP2000298686A JP2002103344A JP 2002103344 A JP2002103344 A JP 2002103344A JP 2000298686 A JP2000298686 A JP 2000298686A JP 2000298686 A JP2000298686 A JP 2000298686A JP 2002103344 A JP2002103344 A JP 2002103344A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- casting
- component
- polyamide resin
- tank
- 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
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は注型ポリアミド樹
脂の成形体の製造装置及びその洗浄方法で、詳しくは実
質上無水のω−ラクタムに触媒を添加した成分液と助触
媒を添加した成分液をそれぞれタンク撹拌温調保持し、
計量混合して型に注入する注型ポリアミド樹脂の製造装
置及びその洗浄方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for producing a molded article of a cast polyamide resin, and more particularly to a component liquid obtained by adding a catalyst to a substantially anhydrous ω-lactam and a component liquid obtained by adding a cocatalyst. Are maintained in the tank stirring temperature control, respectively.
The present invention relates to an apparatus for manufacturing a cast polyamide resin which is measured and mixed and poured into a mold, and a method for cleaning the same.
【０００２】[0002]
【従来の技術】 実質上無水のω−ラクタムを注型タン
クにそれぞれ計量投入して、触媒を添加し溶解させた成
分液（Ａ液と呼ぶ）と助触媒を添加し溶解させた成分液
（Ｂ液と呼ぶ）とをそれぞれタンク撹拌温調保持し、少
量生産では成形型への計量混合注入は通常、タンクから
Ａ，Ｂ液をそれぞれ人手で計り取って人手で混合注入す
るケースが用いられる。注型量の大きな生産ではポンプ
計量をせず、Ａ，Ｂ液の大容量タンクに一定の窒素圧を
加え吐出配管のバランスを調整して定流量で所定時間排
出計量して注型する方法も用いられるが、多量生産にな
るとポンプ計量し充分な混合を必要とする時は注型ヘッ
ドで混合撹拌して自動注入する注型装置が通常用いられ
る。ポンプ計量には吐出流量レンジの広いギアーやプラ
ンジャーを有した回転ポンプ或いはヘッド撹拌で高圧吐
出し衝突撹拌させる高圧吐出注型シリンダーから成るシ
リンダーポンプも知られている。2. Description of the Related Art A substantially anhydrous ω-lactam is metered into a casting tank, and a component liquid (hereinafter referred to as a liquid A) in which a catalyst is added and dissolved and a component liquid in which a cocatalyst is added and dissolved ( In the case of small-scale production, metering and mixing into a mold is usually performed by manually measuring the liquids A and B from the tank and mixing and injecting them manually. . In production with a large casting volume, there is also a method in which a constant nitrogen pressure is applied to a large-capacity tank for liquids A and B to adjust the balance of the discharge pipe and discharge and weigh at a constant flow rate for a predetermined time without performing pump metering. A casting apparatus is generally used, in which, when mass production is carried out, when a pump is metered and sufficient mixing is required, the mixture is stirred and stirred by a casting head to automatically inject. For pump metering, a rotary pump having a gear or plunger with a wide discharge flow rate range or a cylinder pump composed of a high-pressure discharge casting cylinder that performs high-pressure discharge by head agitation and collisional agitation is also known.
【０００３】又、材料面でＡ，Ｂ液の性状に関わるもの
で、実質上無水のω−ラクタム液は溶剤性が高く加温状
態では更に潤滑性状に欠けることや、とりわけ助触媒を
添加し溶解させたＢ液については装置の接液面に付着生
成物を形成しやすい事から性能劣化が起こり易く、製造
装置を構成する注型装置のシール材や金属摺動部位の機
能維持等にあたって、定期的な分解清掃と計量精度等の
機能維持を短期的に繰り返し施工しているのである。[0003] Further, since the properties of the materials A and B are related to the properties of the liquids, the substantially anhydrous ω-lactam liquid has a high solvent property and thus lacks lubricating properties in a heated state. The dissolved liquid B tends to form adhered products on the liquid-contacting surface of the device, and thus easily deteriorates in performance.In maintaining the function of the sealing material and metal sliding parts of the casting device that constitutes the manufacturing device, Regular disassembly and cleaning and maintenance of functions such as measurement accuracy are repeatedly performed in the short term.
【０００４】[0004]
【発明が解決しようとする課題】しかし、この注型装置
は配合注型タンクと計量ポンプと注型ヘッド及びこれら
機器間に接続される送液配管から構成され、これらの接
液面では形成された付着生成物に対して、度々の分解清
掃に伴い洗浄費用ロスや清掃停止に伴う運転ロスが多く
生産上の課題がある。更に前述の様に、この液は溶剤性
が高く潤滑性状に欠けることから、計量送液用のギアー
ポンプの内器である歯車の摩耗や歯車に接するケースの
傷発生やポンプ回転軸シール摩耗等に伴う部品交換等の
保全費用を要して、装置保全費用低減の課題がある。However, this casting apparatus is composed of a compounding casting tank, a metering pump, a casting head, and a liquid feed pipe connected between these devices. For the adhered products, there are many problems in production, such as loss of cleaning cost due to frequent disassembly and cleaning and operation loss due to stoppage of cleaning. Further, as described above, since this liquid has high solvent properties and lacks lubricating properties, it causes wear of gears that are the inner parts of gear pumps for metering liquid supply, damage to the case that comes in contact with gears, wear of the pump rotating shaft seal, etc. A maintenance cost such as replacement of parts is required, and there is a problem of reducing the maintenance cost of the apparatus.
【０００５】又、例えば配管洗浄後に残った異物が計量
送液用のギアーポンプに突発的に噛み込んだりして故障
は解消できず、注型機能を安定維持する事が難しく信頼
性に欠けることから安定生産と生産効率の点に問題があ
る。とりわけ、イソシアネート、イソシアヌレート誘導
体等の助触媒を添加し溶解させたＢ液は付着生成物が発
生し易く、頻繁に洗浄を必要とする。この様に系内が汚
れやすい事から、望ましくは送液配管が汚れて流動抵抗
が増しポンプ吐出圧が増えてもポンプ本体内での漏れが
少なく吐出量が減少し難い計量ポンプ、つまり汚れに強
い計量ポンプの改良も課題である。In addition, for example, foreign matter left after washing the pipes suddenly bites into the gear pump for metering and feeding, and the failure cannot be eliminated, and it is difficult to maintain the casting function stably and lacks reliability. There are problems with stable production and production efficiency. In particular, the solution B in which a co-catalyst such as an isocyanate or isocyanurate derivative is added and dissolved is liable to generate adhered products, and requires frequent washing. Since the inside of the system is easily contaminated in this way, desirably, the metering pump, in which the liquid supply pipe is contaminated, the flow resistance increases, and even if the pump discharge pressure increases, there is little leakage in the pump body and the discharge amount is difficult to decrease, that is, Improvement of a strong metering pump is also an issue.
【０００６】本発明の目的は、このような問題点を改善
して、注型装置の接液部分の注型ごとの汚れを最小にし
て装置系内の掃除頻度を大幅に少なくし費用を低減する
事と汚れに強い計量ポンプ手段を用いて注型精度が高く
安定稼働が出来る製造装置を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to improve such a problem, minimize the contamination of the liquid contacting part of the casting apparatus for each casting, greatly reduce the frequency of cleaning the inside of the apparatus system, and reduce the cost. It is an object of the present invention to provide a manufacturing apparatus capable of performing high casting accuracy and stable operation using a measuring pump means resistant to dirt.
【０００７】[0007]
【課題を解決するための手段】即ち、本願請求項１記載
の発明では、実質上無水のω−ラクタムに触媒を添加し
た成分液と助触媒を添加した成分液を型内に注型して注
型ポリアミド樹脂を製造する装置において、上記各成分
液を窒素封入したタンク内で撹拌しながら温調保持する
注型タンク部と、タンクから送られてきた各成分液をそ
れぞれ計量して送り出す計量ポンプ部と、計量ポンプ部
を介してタンクから送り出された各成分液を注型ヘッド
へ集計させる送液配管から構成され、そして上記計量ポ
ンプ部を最下方位置に配置するとともに、送液配管に前
記計量ポンプ部への流れ勾配を付けて、該計量ポンプ部
へ成分液を集液してここから液抜き出来る様にした事を
特徴とし、とりわけ装置系内に残留し停滞すると系内の
接液面に付着形成しがちな残液を確実に排出除去する対
応を可能とすることにある。That is, according to the first aspect of the present invention, a component solution obtained by adding a catalyst to a substantially anhydrous ω-lactam and a component solution obtained by adding a cocatalyst are cast into a mold. In an apparatus for manufacturing a cast polyamide resin, a cast tank section for maintaining the temperature of each component liquid while stirring it in a nitrogen-filled tank, and measuring and sending out each component liquid sent from the tank. A pump section and a liquid feed pipe for summing each component liquid sent out from the tank via the metering pump section to the casting head, and the metering pump section is arranged at the lowest position, and the liquid feed pipe is It is characterized in that a flow gradient to the metering pump section is provided so that the component liquid can be collected in the metering pump section and drained therefrom. Adhesion formation on liquid surface It is to enable the corresponding to reliably discharged removed tend bottoms.
【０００８】本願請求項２記載の発明は、前記送液配管
が、移動可能な注型ヘッドに繋がる吐出配管を含み、該
吐出配管に回転継ぎ手を用いて構成される。これにより
注型ヘッドの移動に必要なホース等の可撓配管で不定形
の撓みを持つパイプに代えて、流れ勾配を確実に維持出
来るから残液の滞留を最小に留める事が出来る。又、注
入時の経路配管がホース等の可撓配管と異なり流路変形
が無い事から流路を流れる流動圧力変動が最小になり注
入計量精度が改善できる。[0008] In the invention according to claim 2 of the present application, the liquid supply pipe includes a discharge pipe connected to a movable casting head, and the discharge pipe is configured using a rotary joint. As a result, the flow gradient can be reliably maintained in place of a flexible pipe such as a hose required for moving the casting head and having an irregular bending, so that the retention of the residual liquid can be minimized. Also, since the path piping at the time of injection is different from flexible pipes such as hoses and the like, there is no deformation of the flow path, the fluctuation of the flow pressure flowing through the flow path is minimized, and the injection measurement accuracy can be improved.
【０００９】本願請求項３記載の発明では、計量ポンプ
部がピストンロッドを入れた計量シリンダーと該ピスト
ンロッドの駆動手段で構成する事を特徴としている。こ
の構成により計量機構で噛み合い個所を持ち注型ポンプ
として多用されるギヤーポンプ等と異なり、噛み込み箇
所がなく異物に妨げられず突発的な故障が防止出来る。
更に、計量シリンダーによれば計量液室をピストン弾性
シールで漏れ無く送液できる事から、弾性シールの難し
いギヤーポンプ等に較べ吐出圧力が高くなっても漏れが
変わらず計量精度が高い。この事は配管に付着物が形成
し流動抵抗が増して吐出圧が上がっても計量精度が高
く、つまり配管汚れに影響され難い。従って、多少の汚
れに対しても所定の計量精度を損なうことが無く洗浄頻
度の削減に効果的である。これに加え、最下方位置に置
いた計量シリンダーで液抜きを行う上で、そのシリンダ
ーヘッド部の最下方部位に排出口を設置できる事から、
ギヤーポンプ等に較べ計量機器内の残液が少なく液抜き
が確実に簡単にできる。The invention according to claim 3 of the present application is characterized in that the metering pump section comprises a metering cylinder containing a piston rod and driving means for the piston rod. With this configuration, unlike a gear pump or the like which has a meshing point in the metering mechanism and is frequently used as a casting pump, there is no biting portion and it is not hindered by foreign matter, so that a sudden failure can be prevented.
Further, according to the measuring cylinder, since the liquid in the measuring liquid chamber can be sent without leakage by the piston elastic seal, even if the discharge pressure becomes high, the leakage does not change and the measuring accuracy is high as compared with a gear pump or the like in which the elastic seal is difficult. This means that even if deposits are formed on the pipe and the flow resistance increases and the discharge pressure increases, the measurement accuracy is high, that is, the pipe is hardly affected by contamination. Therefore, it is effective to reduce the frequency of cleaning without impairing the predetermined measurement accuracy even for a small amount of dirt. In addition to this, the drainage can be set at the lowest part of the cylinder head part when draining with the measuring cylinder placed at the lowest position,
Compared with gear pumps, etc., the amount of residual liquid in the measuring device is small, and liquid can be drained easily and reliably.
【００１０】本願請求項４記載の発明では、前述の製造
装置に係わる洗浄方法について規定するもので、実質上
無水のω−ラクタムに触媒を添加した成分液と助触媒を
添加した成分液を計量して型内に注型した後の注型ポリ
アミド樹脂の製造装置の洗浄方法において、上記各成分
液を計量し型内に注型し終えた直後に、窒素を噴入させ
て、成分液の残存しているタンク内と配管内から残液を
抜き取って内部の洗浄を行うことを特徴とした方法であ
る。この洗浄方法により注型ポリアミド樹脂の製造装置
である注型装置において、注型終了直後に残液を抜き取
るからタンクや配管等の接液面で付着形成する時間が最
小に出来て、汚れ難く洗浄が容易になる。The invention according to claim 4 of the present application specifies the cleaning method relating to the above-mentioned manufacturing apparatus, and weighs a component solution obtained by adding a catalyst to a substantially anhydrous ω-lactam and a component solution obtained by adding a cocatalyst. In the washing method of the apparatus for manufacturing a cast polyamide resin after casting in a mold, immediately after the above-mentioned component liquids are measured and cast in the mold, nitrogen is injected to cause the component liquid to be injected. This method is characterized in that residual liquid is extracted from the remaining tank and piping and the inside is cleaned. With this casting method, the remaining liquid is drawn out immediately after the casting is completed in the casting device, which is a device for manufacturing the cast polyamide resin. Becomes easier.
【００１１】更にタンクや配管内の流れの悪い局所に停
滞した液も、窒素を噴入させる事で確実に抜き取ること
が出来る。これに加え、以上の洗浄方法では型から型へ
の注入停止間隔を最小にしており、洗浄を挟まず連続注
型をして、送液配管等の接液部も液が入れ替わり停滞汚
れを解消できる。洗浄頻度を減じて生産効率を高められ
る。更に洗浄管理に当たって注型制御に簡単に一連の自
動洗浄制御が付加出来て確実により効率よく洗浄管理が
出来て実効が上がる。[0011] Further, the liquid that has stagnated in a poorly flowing part of the tank or pipe can be reliably removed by injecting nitrogen. In addition to the above, in the above cleaning method, the interval between injection stops from mold to mold is minimized, and continuous casting is performed without intervening washing, and the liquid is replaced in the liquid contact part such as the liquid supply pipe, eliminating stagnant stains. it can. Production efficiency can be increased by reducing the frequency of cleaning. In addition, a series of automatic cleaning controls can be easily added to the casting control in the cleaning management, so that the cleaning management can be performed more reliably and efficiently, and the effectiveness is improved.
【００１２】本願請求項５記載の発明は洗浄方法に係わ
り、残液を抜き取り、実質上無水のω−ラクタムをタン
ク底部に投入して注型ヘッドの先端部位の吐出口までの
経路配管内と計量ポンプ内等で該液が触れる内壁面に充
満し、窒素を噴入する事で、少なくとも助触媒を添加し
た成分液の系内を洗浄する方法である。前述した様にＢ
液の助触媒系は、Ａ液に比較し更に付着物を形成しがち
であり、液抜き後に洗浄液として溶剤性のあるω−ラク
タム液をタンク底部から配管内を流して満たした後、前
述の液抜き取りを行う洗浄をする。これにより一層の洗
浄効果を高めることが出来る。[0012] The invention according to claim 5 of the present application relates to a cleaning method, in which a residual liquid is drawn out, substantially anhydrous ω-lactam is charged into the tank bottom, and the inside of a pipe to a discharge port at a tip portion of a casting head is connected. This is a method in which at least the inside of the component liquid system to which the cocatalyst is added is washed by filling the inner wall surface with which the liquid comes into contact with the inside of a measuring pump and injecting nitrogen. As mentioned above, B
The co-catalyst system of the liquid tends to form more deposits than the liquid A, and after the liquid is drained, a solvent-based ω-lactam liquid is supplied as a cleaning liquid from the bottom of the tank by flowing the inside of the pipe to fill the liquid. Wash with drainage. This can further enhance the cleaning effect.
【００１３】[0013]
【発明の実施の形態】以下添付図面の図１は本発明の注
型ポリアミド樹脂の製造装置側面図、図２は注型装置の
洗浄フロー図、図３は注型装置の計量シリンダー断面詳
細図、図４は計量ポンプ部の機構図である。図５は洗浄
プロセスステップ図、図６は注型装置の自動洗浄制御図
を参照して、本実施例の注型ポリアミド樹脂の製造装置
を構成する注型装置について説明し、その洗浄方法につ
いては後述することにする。先ず図１に示すように、注
型ポリアミド樹脂の製造装置１は成形型に配合を注型す
る注型装置２と、注型装置２で充液された複数の金型１
０を搬送して重合後脱型するライン装置から成る成形装
置９と、脱型した樹脂成形体を整形加工する加工装置
（図示せず）とから構成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 of the accompanying drawings is a side view of an apparatus for producing a cast polyamide resin of the present invention, FIG. 2 is a flow chart of cleaning of the cast apparatus, and FIG. 3 is a detailed sectional view of a measuring cylinder of the cast apparatus. FIG. 4 is a mechanism diagram of the metering pump section. FIG. 5 is a flowchart of a cleaning process, and FIG. 6 is a flowchart of an automatic cleaning control of the casting apparatus. The casting apparatus constituting the apparatus for manufacturing a cast polyamide resin of this embodiment will be described. It will be described later. First, as shown in FIG. 1, a casting polyamide resin manufacturing device 1 includes a casting device 2 for casting a compound into a molding die, and a plurality of dies 1 filled with the casting device 2.
It comprises a molding device 9 comprising a line device for transporting 0 and demolding after polymerization, and a processing device (not shown) for shaping the demolded resin molded product.
【００１４】以下、成形型に配合を注型する注型装置２
について、図１を用いて説明する。主原料であるω−ラ
クタムを受け入れて添加物を調合配合して昇温温調保持
する配合注型タンク３と、成型サイズから決まる注型量
を各成分液で計量して定量送液する計量ポンプ部４と、
成形型に各成分液を混合して注入する注型ヘッド６と、
これらの機器間を配管で接続してタンクから計量ポンプ
を経て注型ヘッドに送液する送液配管５と、鋼材で溶接
構造から成る架台８とから構成されている。Hereinafter, a casting apparatus 2 for casting a compound into a molding die.
Will be described with reference to FIG. A compounding casting tank 3 that receives and mixes and mixes additives and receives the main raw material, ω-lactam, and maintains a temperature rise and temperature control. A pump section 4;
A casting head 6 for mixing and injecting each component liquid into a molding die,
These devices are connected by pipes, and are composed of a liquid sending pipe 5 for sending a liquid from a tank to a casting head via a metering pump, and a gantry 8 made of steel and having a welding structure.
【００１５】図１に示すように、注型装置２は架台８の
上方位置に２基の注型タンク部３を、下方位置に計量ポ
ンプ部４を配設し、隣接して配置される成型設備９上の
金型１０に対して、接近と離間の移動をする注型ヘッド
６から注入出来る位置に立体配設される。送液配管５
は、タンク１４から計量シリンダー１８の間を吸入配管
２５で、計量シリンダー１８から注型ヘッド６の間を吐
出配管２６で繋設して構成される。この様に移動する注
型ヘッド６に繋がった吐出配管２６は可撓性が必要にな
る（後述する）。As shown in FIG. 1, the casting apparatus 2 has two casting tank sections 3 above the gantry 8 and a metering pump section 4 below it. The mold 10 on the equipment 9 is three-dimensionally arranged at a position where injection can be performed from the casting head 6 that moves closer to and away from the mold 10. Liquid sending pipe 5
The suction pipe 25 connects the tank 14 to the measuring cylinder 18 and the discharge pipe 26 connects the measuring cylinder 18 to the casting head 6. The discharge pipe 26 connected to the casting head 6 that moves in this manner requires flexibility (described later).
【００１６】次に図２を加えて、詳細を説明する。先ず
注型タンク部３は、触媒成分のＡ液と助触媒成分のＢ液
の２成分数である２基から成っている。Ａ，Ｂ液とも構
成は同等だからＡ液について説明する。概ね８０°Ｃの
主原料のω―ラクタム液を流量計（図示せず）で計量し
て受け入れる投入弁１１を有して所定量を注型タンク１
４に投入する。タンク外周は２重構造で、この間に熱媒
を通して１００〜１５０°Ｃに加熱温調（図示してな
い）が出来る。調合された触媒を添加口１３から投入し
攪拌機１２で混合して、乾燥して無酸素の雰囲気を維持
出来る様に０．０１〜０．０４ＭＰａの窒素ガスがパー
ジされている。Next, details will be described with reference to FIG. First, the casting tank unit 3 is composed of two units, that is, two components, a solution A of the catalyst component and a solution B of the co-catalyst component. Since the composition is the same for both liquids A and B, liquid A will be described. A casting tank 1 having a charging valve 11 having a charging valve 11 for measuring and receiving a ω-lactam liquid of a main raw material at about 80 ° C. by a flow meter (not shown)
Put into 4. The outer periphery of the tank has a double structure, during which heating temperature can be adjusted to 100 to 150 ° C. (not shown) through a heat medium. The prepared catalyst is charged from the addition port 13 and mixed by the stirrer 12, dried, and purged with nitrogen gas of 0.01 to 0.04 MPa so as to maintain an oxygen-free atmosphere.
【００１７】続いて計量ポンプ部４は、計量ポンプであ
る計量シリンダー１８、シリンダーの吸入側の吸入弁１
７、吐出側の吐出弁１９と、図４に示す様に計量ポンプ
を伸縮させる駆動シリンダー２１、計量シリンダー１８
と駆動シリンダー２１の連結部材である駆動チャンネル
３７から成っている。計量シリンダー１８はＡ，Ｂ液の
２基があり駆動チャンネル３７にそれぞれ連結して、１
基の駆動シリンダー２１でＡ，Ｂ同時に駆動する構成を
示している。所定流量はストローク移動速度で、注型量
はピストン３２の移動ストローク長さで調整し、吐出弁
１９を閉じ吸入弁１７を開け計量シリンダー１８の液室
容積を増加させタンクから圧送される液を吸入する。次
に吸入弁１７を閉じて吐出弁１９を開け計量シリンダー
１８の液室容積を減じて注型ヘッドに送液するものであ
る。計量シリンダー１８の液室の増減は内部ピストン３
２の移動によって行い、内部ピストン３２の移動はピス
トンロッド３３で連結された駆動シリンダー２１により
移動する。従って流量は内部ピストン３２の液室容積を
減ずる移動速度と移動距離を調整して行う。駆動シリン
ダー２１の伸張長さはストロークに連動するリニアース
ケールで検出して、油圧を用いて駆動制御し、一連の作
動は注型制御として予め設定した値で自動制御され組み
込まれている。Subsequently, the metering pump section 4 includes a metering cylinder 18, which is a metering pump, and the suction valve 1 on the suction side of the cylinder.
7. Discharge valve 19 on the discharge side, drive cylinder 21 for expanding and contracting the metering pump as shown in FIG.
And a drive channel 37 which is a connecting member of the drive cylinder 21. The measuring cylinder 18 has two units, A and B, which are connected to the drive channel 37, respectively.
A configuration in which A and B are simultaneously driven by a base drive cylinder 21 is shown. The predetermined flow rate is adjusted by the stroke moving speed, and the casting amount is adjusted by the moving stroke length of the piston 32, the discharge valve 19 is closed, the suction valve 17 is opened, the volume of the liquid chamber of the measuring cylinder 18 is increased, and the liquid pumped from the tank is discharged. Inhale. Next, the suction valve 17 is closed, the discharge valve 19 is opened, and the volume of the liquid chamber of the measuring cylinder 18 is reduced to feed the liquid to the casting head. Increase and decrease of the liquid chamber of the measuring cylinder 18
2, the internal piston 32 is moved by the drive cylinder 21 connected by the piston rod 33. Therefore, the flow rate is adjusted by adjusting the moving speed and moving distance for reducing the volume of the liquid chamber of the internal piston 32. The extension length of the drive cylinder 21 is detected on a linear scale linked to the stroke, and drive control is performed using hydraulic pressure. A series of operations are automatically controlled at a preset value as casting control and incorporated.
【００１８】更に、図３に示す様に、円筒状の計量シリ
ンダー１８の内部は筒状のシリンダー本体３１とこの内
壁に内挿しシールパッキング３５で密接するピストン３
２とこれに締結されたロッド３３で構成される。シリン
ダー本体３１は２重構造のジャケットにしてあり温調熱
媒で加熱保温してある。シールパッキング３５はフッ素
樹脂製の丸断面の環状リングを挟んで角断面の環状リン
グ体を両側に設けて、伸縮摺動時の密封性を確保した低
圧使用の簡便な構造である。Further, as shown in FIG. 3, the inside of the cylindrical measuring cylinder 18 has a cylindrical cylinder body 31 and a piston 3 which is inserted into the inner wall of the cylindrical measuring cylinder 18 and is in close contact with a seal packing 35.
2 and a rod 33 fastened thereto. The cylinder body 31 has a double-structured jacket and is heated and kept warm by a temperature control heat medium. The seal packing 35 has a simple structure of low pressure using a ring-shaped ring body having a square cross section provided on both sides of a circular ring made of a fluororesin so as to secure sealing performance during expansion and contraction sliding.
【００１９】次に注型ヘッド６は、計量ポンプ部４から
送液される各液を先端にノズル口２４を設けて集合導入
してある。また成形型１０の真上に接近し成形型の移動
に合わせて離間移動させる移動シリンダー２８の支持機
構を付属して、可撓性のある吐出配管で接続不要として
いる。本事例では、金型１０注型時に型内で衝突混合す
る事で、注型ヘッドでの撹拌を不要として有り、Ａ液と
Ｂ液の吐出配管２６を注型ヘッド４に導入し、常にＡ，
Ｂ液を同時タイミングで型に注入する構成にしてある。Next, the casting head 6 collectively introduces each liquid fed from the metering pump section 4 by providing a nozzle port 24 at the tip. In addition, a support mechanism for a moving cylinder 28 that comes close to the mold 10 and moves away according to the movement of the mold is attached, and connection is not required by a flexible discharge pipe. In this case, the mixing and stirring in the casting head during the casting of the mold 10 eliminates the necessity of stirring in the casting head. ,
The liquid B is injected into the mold at the same time.
【００２０】続いて吸入配管２５と吐出配管２６から成
る送液配管５は、その管壁が７０〜１５０°Ｃに保温温
調されて前述のように吐出配管２６は注型ヘッド４の移
動に伴って、可撓性を必要とするがヒーター付きフレキ
シブルホース等に代えて以下の回転継ぎ手２７、２９を
用いている。Subsequently, the liquid supply pipe 5 composed of the suction pipe 25 and the discharge pipe 26 has its wall kept at a temperature of 70 to 150 ° C. and the discharge pipe 26 is moved by the casting head 4 as described above. Accordingly, the following rotating joints 27 and 29 are used instead of a flexible hose with a heater, which requires flexibility.
【００２１】本発明では図１，２に示すようにＡ、Ｂ液
の吐出配管を平行四辺形に構成して、その４箇所の支点
に回転継ぎ手２７、２９を繋設して下辺を構成する吐出
管２６Ａ、２６Ｂを固設して、注型ヘッド６は上辺の先
端に繋設し、図中の立ち上がり辺を構成した吐出管をシ
リンダー２８で伸縮させて先端にある注型ヘッド６を移
動させるものである。In the present invention, as shown in FIGS. 1 and 2, the discharge pipes for the liquids A and B are formed in a parallelogram, and the lower joints are formed by connecting rotary joints 27 and 29 to the four fulcrums. The discharge pipes 26A and 26B are fixed, the casting head 6 is connected to the top end of the upper side, and the discharge pipe forming the rising side in the figure is expanded and contracted by the cylinder 28 to move the casting head 6 at the front end. It is to let.
【００２２】さて以上に詳述した注型装置の構成と機能
に基づき、洗浄について詳細説明する。先ず液抜き構造
においては、図２に示す様に中央に向けて傾斜したタン
ク底部は中央に向け排出口となる吸入弁１７へ連通し、
最下方位置の計量シリンダー１８の液室に向かって流れ
勾配を設けている。注型ヘッド６を含む吐出配管２６は
上辺に配した回転継ぎ手２９Ａ，２９Ｂを配管頂部にし
て注型口２４への排出と計量シリンダー１８の液室に向
かって逆流れ勾配を設けている。The cleaning will be described in detail based on the configuration and functions of the casting apparatus described in detail above. First, in the liquid draining structure, as shown in FIG. 2, the tank bottom inclined toward the center communicates with a suction valve 17 serving as a discharge port toward the center.
A flow gradient is provided toward the liquid chamber of the metering cylinder 18 at the lowest position. The discharge pipe 26 including the casting head 6 has a reverse flow gradient toward the discharge chamber 24 and the liquid chamber of the measuring cylinder 18 with the rotary joints 29A and 29B arranged on the upper side at the top of the pipe.
【００２３】上述したが図１，２に示すようにＡ、Ｂ液
の吐出配管を平行四辺形に構成して４箇所の支点に回転
継ぎ手２７を繋設する施工により停滞箇所を排除するも
のである。同時に計量シリンダーの液室は集液が終わる
最後には、ピストン３２をシリンダーヘッド３４に隣接
させ残量を最小にして、液抜き接続口３６へ押し出す作
用を与えている。液抜き接続口３６はその開口断面高さ
のほぼ３分の１をシリンダー３１の内壁面の最低位部よ
り低く開口接続して停滞を最小にしている。以上の注型
タンク部３、計量シリンダー部１８、注型ヘッド６、送
液配管５等の全ての接液部はジャケット構造を有して温
調熱媒でシールドしてあり系内温調温度は凝固温度６９
°Ｃ付近のω―ラクタムの保持条件に適応した７０〜１
５０°Ｃの条件下で構成してあり、凝固した残液の停滞
を解消した機器配置と送液配管としてある。As described above, as shown in FIGS. 1 and 2, the discharge pipes for the liquids A and B are formed in a parallelogram, and the stagnant portion is eliminated by connecting the rotary joint 27 to four fulcrums. is there. At the same time, in the liquid chamber of the measuring cylinder, at the end of the liquid collection, the piston 32 is provided adjacent to the cylinder head 34 to minimize the remaining amount and to push the piston 32 to the liquid drain connection port 36. The liquid drain connection port 36 is connected to the lower end of the inner wall surface of the cylinder 31 so that approximately one-third of the opening cross-sectional height is lower than the lowest position, thereby minimizing stagnation. All the liquid contact parts such as the casting tank part 3, the measuring cylinder part 18, the casting head 6, the liquid feeding pipe 5, etc. have a jacket structure and are shielded by a temperature control heat medium. Is the solidification temperature 69
70 to 1 adapted to ω-lactam retention conditions around ° C
It is configured under the condition of 50 ° C., and has a device arrangement and a liquid sending pipe in which stagnation of solidified residual liquid is eliminated.
【００２４】続いて液切り構造については、上述の液抜
きの終期にはタンクパージした封入窒素ガスが通過し吸
入配管２５の局所に停滞する残液を、また吐出配管２６
の残液は回転継ぎ手２９Ａ，２９Ｂとなる配管頂上部に
窒素パージ接続口が設けあり、吐出配管２６内に噴射さ
せて注入ヘッド先端のノズル口２４と計量シリンダー１
８の液室を経て液抜き接続口３６から液抜き弁２０へ排
出する。Next, regarding the liquid draining structure, at the end of the above-described liquid draining, the residual liquid that has passed through the tank-purged sealed nitrogen gas and stagnated locally in the suction pipe 25 and the discharge pipe 26
The remaining liquid is provided with a nitrogen purge connection port at the top of the pipe which will be the rotary joints 29A and 29B, and is sprayed into the discharge pipe 26 so that the nozzle port 24 at the tip of the injection head and the measuring cylinder 1
The liquid is discharged from the liquid drain connection port 36 to the liquid drain valve 20 through the liquid chamber 8.
【００２５】さて、以下は本発明に係わるポリアミド樹
脂の製造装置の洗浄方法について説明する。先ずポリア
ミド樹脂成形体の製造工程中の１つである成型工程は型
予熱工程、注型工程、重合工程、脱型工程の４工程から
順に構成され１サイクルに概ね１〜２時間が必要であ
る。一方、本発明に係わる注型工程は計量、溶解、昇
温、注型の順に４つの機能で構成され注型迄の準備（成
型工程の外段取り）として計量、溶解、昇温におおよそ
２０〜４０分が必要である。注型工程では注型液温が１
００〜１５０°Ｃと高く、配合した後の配合の存置時間
は概ね１時間で、早く使い切ることが成型品質や装置内
の接液面の汚れ防止になり、洗浄頻度を軽減出来る。Now, a method of cleaning the apparatus for producing a polyamide resin according to the present invention will be described. First, the molding step, which is one of the steps of manufacturing a polyamide resin molded article, is composed of four steps: a mold preheating step, a casting step, a polymerization step, and a demolding step, and one cycle generally requires 1 to 2 hours. . On the other hand, the casting process according to the present invention is composed of four functions in the order of measuring, melting, heating, and casting, and as a preparation for casting (outer setup of the molding process), measuring, melting, and heating are approximately 20 to 20 times. It takes 40 minutes. In the casting process, the casting liquid temperature is 1
The temperature is as high as 00 to 150 ° C., and the residence time of the compound after the compounding is about 1 hour. The use up quickly can prevent molding quality and contamination of the liquid contact surface in the apparatus, and can reduce the cleaning frequency.
【００２６】この事から、前述の外段取りに当たり製造
計画時にロット生産計画し、複数個の金型を注型の１ロ
ットとして編成する。次に成型工程で型予熱工程の進度
を把握して、外段取りである注型装置の計量を開始して
溶解、昇温を完了と共に成型工程の注型工程に同期させ
て、注型直前に配合完了させ、注型装置の待ち時間を最
小にする。For this reason, in the above-described external setup, lot production is planned at the time of manufacturing planning, and a plurality of dies are knitted as one casting lot. Next, in the molding process, the progress of the mold preheating process is grasped, and the casting of the casting device, which is an external setup, is started, melting and heating are completed, and synchronized with the casting process of the molding process. Complete compounding and minimize casting equipment wait time.
【００２７】 次に、前述の注型の１ロットとして編成
した複数個の金型に、順次繰り返して注型する。金型間
での注型停止時間を最小にして注入ヘッド部を洗浄する
ことなく連続して自動注型を行い、装置系内の接液面で
のＡ，Ｂ液の停滞時間を最小にする。続いて、洗浄操作
を自動にして自動注型の完了に引き続いて前述した液抜
きと液切りをＡ，Ｂ液で行い自動洗浄する。Next, casting is repeatedly and sequentially performed on a plurality of molds knitted as one lot of the above-described casting. Automatic casting is performed continuously without cleaning the injection head by minimizing the casting stop time between the dies, and the stagnation time of the A and B liquids on the liquid contact surface in the apparatus system is minimized. . Subsequently, the washing operation is automatically performed, and after the completion of the automatic casting, the above-described liquid drainage and liquid drainage are performed with the liquids A and B to perform automatic cleaning.
【００２８】 続いて、以上の液抜きから液切り方法に
ついて図５，６を用いて詳細説明する。図５はＡ，Ｂ液
共通であり１液のみを示している。注型ＳＴＡＲＴ時に
洗浄の自動・手動の操作選択Ｓ１１をする。自動注型が
始まり予熱された成形型に、所定の注型量と所定の注型
速度でＡ，Ｂ液を注入して製造ロット分の全数の型に注
型完了したところで、洗浄工程が開始する。Next, a method of draining and draining the liquid will be described in detail with reference to FIGS. FIG. 5 is common to the liquids A and B, and shows only one liquid. At the time of casting start, an automatic / manual operation selection S11 for cleaning is performed. When the automatic casting starts, the A and B liquids are injected into the preheated mold at a predetermined casting amount and a predetermined casting speed, and the casting process is started when the casting is completed in all the molds of the production lot. I do.
【００２９】先ず洗浄第１ステップＳ１３に入り、タン
ク３Ａと吸入配管２５Ａの残液を図５（１）の通り、タ
ンク下の吸入弁１７Ａと液抜き弁２０Ａとを開きタンク
内窒素パージ圧と計量シリンダー１８Ａのピストン３２
Ａを伸縮摺動させて液抜きし工程の終期にパージ窒素が
噴出して局所に停滞した液切りをする。First, in the first washing step S13, the residual liquid in the tank 3A and the suction pipe 25A is opened by opening the suction valve 17A and the liquid drain valve 20A below the tank as shown in FIG. Piston 32 of measuring cylinder 18A
A is stretched and slid to drain liquid at the end of the draining process, and purged nitrogen is blown out to drain liquid that has stagnated locally.
【００３０】この間を所定時間タイマーＴ１１で行い、
タイムアップで洗浄第２ステップＳ１４に入り、注型ヘ
ッド６と吐出配管２６Ａの残液を図５（２）の通り、液
抜き弁２０Ａは開いたままタンク下の吸入弁１７Ａを閉
じて吐出弁１９Ａを開き計量シリンダー１８Ａをのピス
トン３２Ａを伸縮摺動させて液抜きし、タイムアップ
（図示せず）の後、配管頂部の窒素パージ接続口１１Ａ
に繋がる窒素噴出弁１５Ａを開いてパージ窒素の噴出で
吐出管２６Ａを液切りし、第２洗浄タイマーＴ１２のタ
イムアップで、洗浄第３ステップＳ１５の洗浄完了状態
で一連の自動洗浄を終了する方法である。This interval is performed by a timer T11 for a predetermined time.
When the time is up, the cleaning second step S14 is entered, and the remaining liquid of the casting head 6 and the discharge pipe 26A is discharged as shown in FIG. 5 (2) by closing the suction valve 17A under the tank with the drain valve 20A open. 19A is opened, the liquid is drained by extending and sliding the piston 32A of the measuring cylinder 18A, and after a time-up (not shown), the nitrogen purge connection port 11A at the top of the pipe is opened.
A method of opening the nitrogen ejection valve 15A and draining the discharge pipe 26A with the ejection of purge nitrogen, and terminating the second washing timer T12 to end a series of automatic washing in the washing completion state of the third washing step S15. It is.
【００３１】更に、接液面に付着形成しがちな助触媒を
添加したＢ液については、主原料の実質上無水のω―ラ
クタム液を用いて更に追加洗浄する。この方法について
は前述の図５，６を用いた自動洗浄で説明した図５
（３）洗浄第３ステップ終了状態から、更にＢ液タンク
底部に少量の実質上無水のω―ラクタム液を投入弁１１
Ｂから流量計で計量して自動投入する。丁度、タンク底
部に注型残液が残った注型完了状態と同様で残液が実質
上無水のω―ラクタム液に入れ替わった状態となる。こ
れで液抜き取りを繰り返せば無水のω―ラクタム液で液
洗浄が出来る。従って前述の自動洗浄を再度繰り返す方
法である。Further, the solution B to which a co-catalyst which tends to adhere to the liquid contact surface is added is further washed with a substantially anhydrous ω-lactam solution as a main raw material. This method is described in FIG. 5 described in the automatic cleaning using FIGS.
(3) From the end of the third washing step, a small amount of substantially anhydrous ω-lactam solution is further injected into the bottom of the solution B tank 11
From B, it is measured by a flow meter and automatically charged. Just like the casting completed state where the casting residue remains at the bottom of the tank, the remaining solution is replaced with a substantially anhydrous ω-lactam solution. By repeating the draining, the liquid can be washed with an anhydrous ω-lactam solution. Therefore, this is a method in which the above-described automatic cleaning is repeated again.
【００３２】本発明で使用する上記ω−ラクタムは、実
質上無水のα−ピペリドン、ε−カプロラクタム、ω−
ラウロラクタム、ω−エナントラクタム、ω−カプリル
ラクタム、ω−デカノラクタム、ω−ウンデカノラクタ
ム、等あるいはこれらの２種以上の混合物であり、工業
的に有利なラクタムはε−カプロラクタムとω−ラウロ
ラクタムである。The ω-lactam used in the present invention is substantially anhydrous α-piperidone, ε-caprolactam, ω-lactam.
Laurolactam, ω-enantholactam, ω-caprylactam, ω-decanolactam, ω-undecanolactam, etc. or a mixture of two or more thereof. Industrially advantageous lactams are ε-caprolactam and ω-laurolactam. It is.
【００３３】触媒は水素化ナトリウム、水素化リチウ
ム、ナトリウム、カリウム等公知のω−ラクタムの重合
触媒を使用することができ、その添加量はω−ラクタム
に対して０．１〜２．０モル％である。As the catalyst, known ω-lactam polymerization catalysts such as sodium hydride, lithium hydride, sodium and potassium can be used, and the addition amount thereof is 0.1 to 2.0 mol based on ω-lactam. %.
【００３４】そして、助触媒としては、例えばＮ−アセ
チル−ε−カプロラクタム、イソシアネート、ジイソシ
アネート、尿素誘導体、ウレタン、イソシアヌレート誘
導体であり、その添加量はω−ラクタムに対して０．０
５〜１．０モル％の範囲が好ましい。The co-catalyst is, for example, N-acetyl-ε-caprolactam, isocyanate, diisocyanate, urea derivative, urethane or isocyanurate derivative.
A range of 5 to 1.0 mol% is preferred.
【００３５】尚、実施の形態は前記に限定されるもので
はなく、例えば次の様に変更実施しても良い。 （１）Ａ，Ｂ液の数は２以上の場合は、１系増やす対応
で良い。 （２）注形ヘッドに混合攪拌機を不要としているが、必
要であれば注型ヘッドの交換で対応できる。 （３）Ａ，Ｂ液配合比率は本事例では１対１にて説明し
ているが、これ以外の比率では計量シリンダー毎に駆動
シリンダーを設けるか、又計量シリンダーの径を交換し
て対応出来る。The embodiment is not limited to the above, and may be modified as follows, for example. (1) When the number of liquids A and B is two or more, it is sufficient to increase the number of systems by one. (2) Although a mixing stirrer is not required for the casting head, it can be dealt with by replacing the casting head if necessary. (3) The mixing ratio of liquids A and B is described as 1: 1 in this case, but other ratios can be handled by providing a driving cylinder for each measuring cylinder or changing the diameter of the measuring cylinder. .
【００３６】[0036]
【発明の効果】以上の説明の様に、本願の請求項１〜５
記載の注型ポリアミド樹脂の製造装置及びその洗浄方法
による発明では、請求項１、２の構成によってＡ，Ｂ液
の装置系内に残留して接液面に停滞する付着しがちな大
半の残液を排出する事が出来る。更に請求項５のω―ラ
クタム液での追加洗浄方法を実施する事により、残液抜
きだけでは接液面の付着汚れを解消出来ない助触媒Ｂ液
の汚れも最小に出来る。As described above, claims 1 to 5 of the present application are provided.
According to the casting polyamide resin manufacturing apparatus and the method for cleaning the same according to the invention, most of the residual liquid remaining in the apparatus system of the liquids A and B and liable to adhere to the liquid contact surface due to the constitutions of claims 1 and 2. The liquid can be drained. Further, by carrying out the additional cleaning method with the ω-lactam solution according to the fifth aspect, it is possible to minimize the contamination of the co-catalyst B solution which cannot remove the adhered contamination on the liquid contact surface only by removing the residual liquid.
【００３７】請求項３の計量ポンプを、簡便な計量シリ
ンダー方式として低圧で充分に対応出来るピストン構造
を採用する事で、ポンプ内の残液洗浄が確実に出来る事
に加えて異物噛み込みの故障もなく、とりわけ計量精度
が安定して成型品質の向上になる。By adopting the simple construction of the metering pump according to the third aspect of the present invention as a simple measuring cylinder system and using a piston structure capable of sufficiently coping with low pressure, the residual liquid in the pump can be reliably washed, and the failure of foreign matter getting caught can be prevented. None, especially, the measurement accuracy is stabilized and the molding quality is improved.
【００３８】請求項４の一連の洗浄方法を採用すること
で、洗浄遅れや洗浄時間のバラツキによる除去不足が解
消出来る。とりわけ自動化して人手を最小に出来、且つ
洗浄管理が可能になり、突発保全が回避出来る。請求項
４の洗浄方法は、請求項１，２，３の製造装置に係わる
改良成果を運用面で更に明確なものとし、確実にする方
法を規定した。By employing a series of cleaning methods according to the fourth aspect, it is possible to eliminate insufficient cleaning due to delay in cleaning or variation in cleaning time. In particular, automation can be performed to minimize manual labor, and cleaning management can be performed, and sudden maintenance can be avoided. The cleaning method according to claim 4 clarifies the improvement results of the manufacturing apparatus according to claims 1, 2, and 3 in terms of operation, and defines a method for ensuring the result.
【図１】本発明の注型ポリアミド樹脂の製造装置の機器
配置図である。FIG. 1 is an equipment layout diagram of an apparatus for producing a cast polyamide resin of the present invention.
【図２】注型装置の洗浄フロー図である。矢印は残液の
抜き取り流れ方向を示している。FIG. 2 is a cleaning flow chart of the casting apparatus. The arrows indicate the direction of the drainage flow of the residual liquid.
【図３】注型装置の計量シリンダー本体の断面詳細図で
ある。FIG. 3 is a detailed sectional view of a measuring cylinder main body of the casting apparatus.
【図４】注型装置の計量ポンプ部の機構図である。FIG. 4 is a mechanism diagram of a measuring pump unit of the casting device.
【図５】注型装置の洗浄プロセスステップ図である。FIG. 5 is a flowchart of a cleaning process of the casting apparatus.
【図６】注型装置の自動洗浄制御図である。FIG. 6 is an automatic cleaning control diagram of the casting apparatus.
１ 注型ポリアミド樹脂の製造装置 ２ 注型装置 ３ 注型タンク部 ４ 計量ポンプ部 ５ 送液配管 ５Ａ Ａ液（触媒）送液配管 ５Ｂ Ｂ液（触媒）送液配管 ６ 注形ヘッド ９ 成型装置 １０ 金型 １８ 計量シリンダー １８Ａ Ａ液計量シリンダー １８Ｂ Ｂ液計量シリンダー ２０ 液抜き弁 ２７、２９ 回転継ぎ手 ３２ ピストン DESCRIPTION OF SYMBOLS 1 Casting polyamide resin manufacturing apparatus 2 Casting apparatus 3 Casting tank section 4 Metering pump section 5 Liquid supply pipe 5A Liquid A (catalyst) liquid supply pipe 5B Liquid B (catalyst) liquid supply pipe 6 Casting head 9 Molding device DESCRIPTION OF SYMBOLS 10 Die 18 Measuring cylinder 18A A liquid measuring cylinder 18B B liquid measuring cylinder 20 Liquid drain valve 27, 29 Rotary joint 32 Piston
Claims (5)
した成分液と助触媒を添加した成分液を型内に注型して
注型ポリアミド樹脂を製造する装置において、上記各成
分液を窒素封入したタンク内で撹拌しながら温調保持す
る注型タンク部と、タンクから送られてきた各成分液を
それぞれ計量して送り出す計量ポンプ部と、計量ポンプ
部を介してタンクから送り出された各成分液を注型ヘッ
ドへ集計させる送液配管から構成され、そして上記計量
ポンプ部を最下方位置に配置するとともに、送液配管に
前記計量ポンプ部への流れ勾配を付けて、該計量ポンプ
部へ成分液を集液してここから液抜き出来る様にしたこ
とを特徴とする注型ポリアミド樹脂の製造装置。1. An apparatus for producing a cast polyamide resin by casting a component liquid obtained by adding a catalyst to a substantially anhydrous ω-lactam and a component liquid obtained by adding a co-catalyst, wherein each of the above component liquids is used. A casting tank section for maintaining the temperature while stirring in a tank filled with nitrogen, a measuring pump section for measuring and sending each component liquid sent from the tank, and a measuring pump section for sending out the liquid component from the tank. The measuring pump is constituted by a liquid sending pipe for summing the respective component liquids to the casting head, and the metering pump is disposed at the lowest position, and the liquid sending pipe is provided with a flow gradient to the metering pump. An apparatus for producing a cast polyamide resin, wherein a component liquid is collected in a section and drained therefrom.
に繋がる吐出配管を含み、該吐出配管に回転継ぎ手を用
いた請求項１記載の注型ポリアミド樹脂の製造装置2. The apparatus for producing a cast polyamide resin according to claim 1, wherein the liquid feed pipe includes a discharge pipe connected to a movable casting head, and a rotary joint is used for the discharge pipe.
た計量シリンダーと該ピストンロッドの駆動手段で構成
する請求項１または２記載の注型ポリアミド樹脂の製造
装置。3. The casting polyamide resin production apparatus according to claim 1, wherein the metering pump section comprises a metering cylinder containing a piston rod and driving means for the piston rod.
した成分液と助触媒を添加した成分液を計量して型内に
注型した後の注型ポリアミド樹脂の製造装置の洗浄方法
において、上記各成分液を計量し型内に注型完了し終え
た直後に、窒素を噴入させて、成分液の残存しているタ
ンク内と配管内から残液を抜き取って内部の洗浄を行う
ことを特徴とする注型ポリアミド樹脂の製造装置の洗浄
方法。4. A method for cleaning an apparatus for producing a cast polyamide resin after weighing a component solution obtained by adding a catalyst to a substantially anhydrous ω-lactam and a component solution obtained by adding a co-catalyst into a mold. Immediately after the component liquids are measured and the casting is completed in the mold, nitrogen is blown out to remove residual liquid from the tank and the piping where the component liquids remain, and to clean the inside. A method for cleaning an apparatus for producing a cast polyamide resin, characterized by comprising:
タムをタンク底部に投入して注型ヘッドの先端部位の吐
出口までの経路配管内と計量ポンプ内等で該液が触れる
内壁面に充満し、窒素を噴入する事で、少なくとも助触
媒を添加した成分液の系内を洗浄する請求項４記載の注
型ポリアミド樹脂の製造装置の洗浄方法。5. An inner wall surface with which the residual liquid is withdrawn, a substantially anhydrous ω-lactam is charged into the bottom of the tank, and the liquid comes into contact with the liquid in a pipe to a discharge port at a tip portion of a casting head and in a metering pump. 5. The method for cleaning a cast polyamide resin production apparatus according to claim 4, wherein at least the inside of the system of the component liquid to which the co-catalyst is added is washed by injecting nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000298686A JP4588857B2 (en) | 2000-09-29 | 2000-09-29 | Polyamide resin molded body manufacturing apparatus and cleaning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000298686A JP4588857B2 (en) | 2000-09-29 | 2000-09-29 | Polyamide resin molded body manufacturing apparatus and cleaning method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002103344A true JP2002103344A (en) | 2002-04-09 |
| JP4588857B2 JP4588857B2 (en) | 2010-12-01 |
Family
ID=18780616
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000298686A Expired - Fee Related JP4588857B2 (en) | 2000-09-29 | 2000-09-29 | Polyamide resin molded body manufacturing apparatus and cleaning method thereof |
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| Country | Link |
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| JP (1) | JP4588857B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017007266A (en) * | 2015-06-25 | 2017-01-12 | 学校法人日本大学 | Pultrusion manufacturing equipment of fiber-reinforced polyamide composite material, and pultrusion manufacturing method |
| JP2018154024A (en) * | 2017-03-17 | 2018-10-04 | 株式会社二幸技研 | Resin molding apparatus |
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| JPS63176117A (en) * | 1987-01-16 | 1988-07-20 | Sumitomo Rubber Ind Ltd | Two pack reaction injection |
| JPH0278505A (en) * | 1988-09-14 | 1990-03-19 | Noritake Co Ltd | Mixing and discharge device of two-pack type resin |
| JPH06134796A (en) * | 1992-10-22 | 1994-05-17 | Yoshida Kogyo Kk <Ykk> | Pipe joint in rotational operation unit of vertical injection molding machine and injection molding machine utilizing the same |
| JPH06134791A (en) * | 1992-10-23 | 1994-05-17 | Sumitomo Rubber Ind Ltd | Reactive injection molding device |
| JPH08155973A (en) * | 1994-12-08 | 1996-06-18 | Kansai Henseiki Kogyo Kk | Molding apparatus and method having washing function |
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2000
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58179610A (en) * | 1982-04-15 | 1983-10-20 | Toyota Motor Corp | Washing method for combined pressure feeder and mixer for high-viscosity resin |
| JPS63176117A (en) * | 1987-01-16 | 1988-07-20 | Sumitomo Rubber Ind Ltd | Two pack reaction injection |
| JPH0278505A (en) * | 1988-09-14 | 1990-03-19 | Noritake Co Ltd | Mixing and discharge device of two-pack type resin |
| JPH06134796A (en) * | 1992-10-22 | 1994-05-17 | Yoshida Kogyo Kk <Ykk> | Pipe joint in rotational operation unit of vertical injection molding machine and injection molding machine utilizing the same |
| JPH06134791A (en) * | 1992-10-23 | 1994-05-17 | Sumitomo Rubber Ind Ltd | Reactive injection molding device |
| JPH08155973A (en) * | 1994-12-08 | 1996-06-18 | Kansai Henseiki Kogyo Kk | Molding apparatus and method having washing function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017007266A (en) * | 2015-06-25 | 2017-01-12 | 学校法人日本大学 | Pultrusion manufacturing equipment of fiber-reinforced polyamide composite material, and pultrusion manufacturing method |
| JP2018154024A (en) * | 2017-03-17 | 2018-10-04 | 株式会社二幸技研 | Resin molding apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4588857B2 (en) | 2010-12-01 |
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