JPS5956086A - Cooling device for plastics molding machine - Google Patents

Cooling device for plastics molding machine

Info

Publication number
JPS5956086A
JPS5956086A JP57165902A JP16590282A JPS5956086A JP S5956086 A JPS5956086 A JP S5956086A JP 57165902 A JP57165902 A JP 57165902A JP 16590282 A JP16590282 A JP 16590282A JP S5956086 A JPS5956086 A JP S5956086A
Authority
JP
Japan
Prior art keywords
cooling water
molding machine
heat exchanger
primary cooling
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP57165902A
Other languages
Japanese (ja)
Inventor
Shigeru Matsubara
松原　茂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHUO KAGAKU HANBAI KK
Original Assignee
CHUO KAGAKU HANBAI KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHUO KAGAKU HANBAI KK filed Critical CHUO KAGAKU HANBAI KK
Priority to JP57165902A priority Critical patent/JPS5956086A/en
Publication of JPS5956086A publication Critical patent/JPS5956086A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
    • F28D5/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

PURPOSE:To prevent reduction of cooling efficiency as well as troubles and the like of the cooling device by a method wherein the circulating path of cooling water is sealed and a rust preventive, restraining production of scales in the cooling water, is dissolved into the cooling water. CONSTITUTION:An enclosed type heat exchanger 16 and a primary cooling water main tank 17 are connected to a primary cooling water pipeline 7 while a primary cooling water circulating pump 18 is connected between the heat exchanger 16 and injection molding machine groups 2-6 and the circulating path of the cooling device is sealed. The rust preventive, preventing the production of scales in the primary cooling water and the pipelines, is mixed and dissolved into the primary cooling water, therefore, the reduction of the cooling efficiency and the troubles caused in the device may be prevented.

Description

【発明の詳細な説明】 技術分野 この発明は例えば射出成形機等のプラスチック成形機の
ための冷却装置に関するものである。TECHNICAL FIELD This invention relates to a cooling device for a plastic molding machine, such as an injection molding machine.

従来技術 従来プラスチックの成形工場において成形機を冷却する
装置は大別して２つある。１つは地下水を大量に汲上げ
てそのまま冷却水として使用し、使用後はその冷却水を
廃棄するものであり、他の１つは地下水等を貯水槽に貯
留してそれを開放型の熱交換器を通して循環使用するも
のである。Prior Art Conventionally, there are two types of devices for cooling molding machines in plastic molding factories. One is to pump up a large amount of groundwater and use it directly as cooling water, and then discard the cooling water after use.The other is to store groundwater in a water tank and use it as an open heat source. It is used for circulation through an exchanger.

従って、前者の場合には地下水の豊富な地域でないと操
業が不可能であり、又、後者の場合には熱交換器が開放
型であるため水が空気に直接接触して、その冷却水中に
塵埃が混入したり、水藻が発生したり、スケールが生じ
たり、配管系統からの錆が混入したりりる。そしえ空気
との接触部において水が蒸発するために補給が必要であ
り、それが繰返されると前記の塵埃、水藻等が濃縮され
て冷却効率の低下、装着の故障等の原因となった。Therefore, in the former case, operation is only possible in areas with abundant groundwater, and in the latter case, since the heat exchanger is an open type, the water comes into direct contact with the air, and the cooling water is Dust may be mixed in, water algae may grow, scale may be formed, and rust may be mixed in from the piping system. Water then evaporates at the point of contact with the air, requiring replenishment, and if this process is repeated, the dust, water algae, etc. mentioned above become concentrated, resulting in a decrease in cooling efficiency and failure of installation.

又、前者の場合にも地下水の水質が悪い場合には配管系
統を痛めたりする不都合があった。Also, in the former case, if the quality of ground water is poor, there is the problem that the piping system may be damaged.

発明の目的 この発明の目的は以上のような欠陥を解消し得る冷却装
置を提供することにある。OBJECT OF THE INVENTION An object of the present invention is to provide a cooling device that can eliminate the above-mentioned defects.

実施例 以下、この発明を具体化した一実施例を図面に基づいて
説明する。工場の敷地１内には５種類の射出成形機２〜
６が設置されている。これらの射出成形機２〜６はプラ
スチックを押出すためのスクリュ一部２ａ〜６ａと、ス
クリューに回転力を附与するための駆動部２ａ〜６ｂと
を備えており、各駆動部２ｂ〜６ｂ及び射出成形機６の
スクリュー部６ａには一次冷却水管路７が分岐接続され
ている。又、射出成形機２〜５はそれぞれ温度調節機８
，９、冷却機１０，１１を備え、各温度調節機８，９、
冷却機１０，１１とスクリュ一部２ａ〜５ａの間にはそ
れぞれ冷却水管路１２〜１５が接続されており、射出成
形機２の冷却水管路１２には前記一次冷却水管路７が接
続されている。EXAMPLE Hereinafter, an example embodying the present invention will be described based on the drawings. There are 5 types of injection molding machines in the factory premises 1.
6 is installed. These injection molding machines 2 to 6 are equipped with screw parts 2a to 6a for extruding plastic and drive parts 2a to 6b for imparting rotational force to the screws. A primary cooling water pipe 7 is branched and connected to the screw portion 6a of the injection molding machine 6. In addition, each of the injection molding machines 2 to 5 has a temperature controller 8.
, 9, coolers 10, 11, each temperature controller 8, 9,
Cooling water pipes 12 to 15 are connected between the coolers 10 and 11 and the screw parts 2a to 5a, respectively, and the primary cooling water pipe 7 is connected to the cooling water pipe 12 of the injection molding machine 2. There is.

さらに、射出成形機５の冷却機１１には一次冷却水管路
７が分岐接続されている。なお、温度調節機８，９、冷
却機１０，１１は、スクリュ一部２ａ〜５ａの温度調節
を行うものであり、そのうち温度調節機８は一次冷却水
を利用して温度調節を行うものであり温度調節機９及び
冷却機１０は独自に温度調節を行うものである。冷却機
１０、１１は冷媒圧送用のコンプレッサを有するもので
あり、冷却機１１のコンプレッサは一次冷却水により冷
却され、冷却機１０のコンプレッサは空冷である。Further, a primary cooling water pipe 7 is branched and connected to the cooler 11 of the injection molding machine 5 . The temperature controllers 8 and 9 and the coolers 10 and 11 are used to adjust the temperature of the screw parts 2a to 5a, and among them, the temperature controller 8 is used to adjust the temperature using primary cooling water. The temperature controller 9 and the cooler 10 independently adjust the temperature. The coolers 10 and 11 have compressors for pumping refrigerant, and the compressor of the cooler 11 is cooled by primary cooling water, and the compressor of the cooler 10 is air-cooled.

前記−次冷却水管路７には密閉型の熱交換器１６と、一
次冷却用メインタンク１７とが接続されるとともに、熱
交換器１６と射出成形機２〜６群との間には一次冷却循
環用ポンプ１８が接続されている。従つて、この冷却装
置の循環経路は密閉されている。前記熱交換器１６は、
蛇行状をなす一次冷却水管路７の放熱部７ａと、その放
熱部７ａの下方に位置する二次冷却水用タンク１９と、
二冷冷却水循環用ポンプ２０により二次冷却水用タンク
１９内の二次冷却水を汲上げて、前記放熱部７ａに上方
から放水するためのシャワー装置２１と、放熱部７ａか
ら気化熱を奪うためのエアを供給するファン２２とを有
している。そして、前記一次冷却水循環用ポンプ１８に
より、熱交換器１６において冷却された一次冷却水が射
出成形機２〜６群側へ送り出され、その射出成形機群側
からの加熱水が一次冷却水用メインタンク１７を経て熱
交換器１６に送られる。二次冷却水が減少した場合には
バルブ２３が開かれて二次冷却水用タンク１９内に水の
補給が行われる。又、一次冷却水用メインタンク１７に
接続されたバルブ２４は通常開成されているが、何らか
の原因により一次冷却水が減少した時にそのバルブ２４
が開かれてサブタンク２５を経て一次冷却水用メインタ
ンク１７内に補給が行われる。A closed heat exchanger 16 and a primary cooling main tank 17 are connected to the secondary cooling water pipe 7, and a primary cooling tank 17 is connected between the heat exchanger 16 and the injection molding machines 2 to 6 groups. A circulation pump 18 is connected. Therefore, the circulation path of this cooling device is sealed. The heat exchanger 16 is
A heat radiation part 7a of the primary cooling water pipe 7 having a meandering shape, and a secondary cooling water tank 19 located below the heat radiation part 7a,
A shower device 21 for pumping up the secondary cooling water in the secondary cooling water tank 19 by the secondary cooling water circulation pump 20 and discharging water from above to the heat radiating section 7a, and removing heat of vaporization from the heat radiating section 7a. It has a fan 22 that supplies air for the purpose. Then, the primary cooling water cooled in the heat exchanger 16 is sent to the injection molding machine groups 2 to 6 by the primary cooling water circulation pump 18, and the heated water from the injection molding machine group side is used for the primary cooling water. It is sent to the heat exchanger 16 via the main tank 17. When the secondary cooling water decreases, the valve 23 is opened and water is replenished into the secondary cooling water tank 19. In addition, the valve 24 connected to the main tank 17 for primary cooling water is normally opened, but when the primary cooling water decreases for some reason, the valve 24 is opened.
is opened and the primary cooling water main tank 17 is replenished via the sub tank 25.

そしく、一次冷却水中にはその一次冷却水内のスケール
の発生を阻止するとともに、配管系統の錆の発生を防止
する防錆剤が溶解混合されている。Moreover, a rust preventive agent is dissolved and mixed in the primary cooling water to prevent the formation of scale in the primary cooling water and to prevent the formation of rust in the piping system.

以上のように、この冷却装置においては熱交換器１６を
含む配管系統が密封されてその蜜月配管系統内において
一次冷却水が循環使用されるため、地下水を大量に使用
したりすることが不要なばかりでなく、塵埃の混入や水
藻の発生を防止することができる、又、一次冷却水中に
はスケールの発生をも押える防錆剤が溶解されているた
め、熱によるスケールの発生を押えることができるとと
もに、配管系統の錆を防止して冷却水中にその錆が混入
するという恐れも防止することかできる。従って、地下
水の有無にかかわらず操業が可能であり、冷却効率の低
下や装置の故障の恐れもなく、メンテナンスが容易であ
る。As described above, in this cooling system, the piping system including the heat exchanger 16 is sealed and the primary cooling water is circulated within the honeymoon piping system, so there is no need to use large amounts of ground water. In addition, it can prevent dust contamination and the growth of algae, and since a rust preventive agent that suppresses scale formation is dissolved in the primary cooling water, it is possible to suppress the formation of scale due to heat. At the same time, it is possible to prevent rust in the piping system and prevent the rust from entering the cooling water. Therefore, operation is possible regardless of the presence or absence of groundwater, and there is no fear of a decrease in cooling efficiency or equipment failure, and maintenance is easy.

第２図はこの発明の第２実施例を示すものである。この
第２実施例では、一次冷却水管路７の放熱部７ａが二次
冷却水用タンク１９の二次冷却水中に浸漬され、前記第
１実施例におけるファンやシャワー装置は設けられてい
ない。その他この第２実施例は前記第１実施例と構成の
異なる部分が存在するが、それらの説明は不要なんで省
略する。FIG. 2 shows a second embodiment of the invention. In this second embodiment, the heat radiation section 7a of the primary cooling water pipe 7 is immersed in the secondary cooling water of the secondary cooling water tank 19, and the fan and shower device in the first embodiment are not provided. There are other parts in this second embodiment that are different in configuration from the first embodiment, but their explanations are unnecessary and will therefore be omitted.

発明の効果 以上実施例において例示したように、この発明は冷却水
の循環経路を密封するとともに、冷却水中にスケールの
発生をも押える防錆剤を溶解したことにより、地下水の
有無にかかわらず操業が可能になり、メンテナンスが容
易になるとともに、高い冷却効率を長期間に渡って保有
することができる優れた効果を奏する。Effects of the Invention As illustrated in the examples, this invention seals the circulation path of cooling water and dissolves a rust preventive agent that suppresses the formation of scale in the cooling water, so that it can be operated regardless of the presence or absence of groundwater. This makes maintenance easier, and has the excellent effect of maintaining high cooling efficiency over a long period of time.

なおこの発明とは直接関係ないが、この発明で具体化し
た冷却装置をビルの冷房システム、変電所におけるトラ
ンスの冷却システム等に応用することも可能である。Although not directly related to this invention, the cooling device embodied in this invention can also be applied to building cooling systems, transformer cooling systems in substations, and the like.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの発明を具体化した第１実施例を示す説明図
、第２図は同じく第２実施例を示す説明図である。 射出成形機２〜６、一次冷却水管路７、放熱部７ａ、熱
交換器１６、シャワー装置２１。 特許出願人中火化セド・販売株式会ネ１代理人弁理士Ｊ
２１７＋１ｔｖ實 手続ン１１７ｉ−Ｅ昇１（自発） １１Ｎ和５フイＴ１０Ｊ１２２０ 特許庁長官若杉和夫殿 ２、発明の名称 プラスブック成形機のＩこめの冷７ＪＩ装置３、補正を
りる者 事件との関係：＋：＋ｉｉ’ｆ出願人 住所岐中市西部菱野町１丁目２７ｗ１地氏名中火化学販
売株式会社 （名称） 成語ｈｋ訃１漬ｎＲ１β ４、代理人 住所〒５００岐串市端詰町２番地FIG. 1 is an explanatory diagram showing a first embodiment embodying the present invention, and FIG. 2 is an explanatory diagram showing the second embodiment. Injection molding machines 2 to 6, primary cooling water pipe 7, heat radiation section 7a, heat exchanger 16, and shower device 21. Patent applicant Nakaka Sedo Sales Co., Ltd. Representative Patent Attorney J
217+1tv Practical Procedures 117i-E Ascension 1 (Spontaneous) 11N Wa 5 Fi T10J1220 Commissioner of the Japan Patent Office Kazuo Wakasugi 2, Title of Invention Plus Book Molding Machine I-Kome no Cold 7JI Device 3, Relationship with the Amendment Case :+:+ii'f Applicant's address: 1-27w1, Nishibuhishino-cho, Gichu-shi Name: Nakahi Kagaku Sales Co., Ltd. (Name) Seigo hk Soichitsuzuke nR1β 4, Agent's address: 2 Hatazume-cho, Gikushi-shi, 500

Claims (3)

【特許請求の範囲】[Claims] １．プラスチック成形機と熱交換器との間において冷却
水を循環さけ、プラスチック成形機の熱を熱交換器によ
って冷却するようにした冷却装置において、冷却水の循
環経路を密封するとともに、冷却水中にスケールの発生
をもおさえる防錆剤を溶解したことを特徴とするプラス
チック成形機のための冷却装置。1. In a cooling system that circulates cooling water between a plastic molding machine and a heat exchanger and uses the heat exchanger to cool the heat of the plastic molding machine, the cooling water circulation path is sealed and scale is removed from the cooling water. A cooling device for a plastic molding machine characterized by dissolving a rust preventive agent that suppresses the occurrence of rust. ２．熱交換器は、冷却水経路の放熱部にシャワーにより
放水するようにしたものである特許請求の範囲第１項記
載のプラスチック成形機のための冷却装置。2. 2. A cooling device for a plastic molding machine according to claim 1, wherein the heat exchanger is configured to spray water onto a heat radiation section of a cooling water path by means of a shower. ３．熱交換器は、冷却水経路の放熱部を別の冷却水中に
浸漬したものである特許請求の範囲第１項記載のプラス
デック成形機のための冷却装置。3. 2. The cooling device for a Plus Deck molding machine according to claim 1, wherein the heat exchanger is a cooling water path whose heat dissipating portion is immersed in separate cooling water.
JP57165902A 1982-09-22 1982-09-22 Cooling device for plastics molding machine Pending JPS5956086A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57165902A JPS5956086A (en) 1982-09-22 1982-09-22 Cooling device for plastics molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57165902A JPS5956086A (en) 1982-09-22 1982-09-22 Cooling device for plastics molding machine

Publications (1)

Publication Number Publication Date
JPS5956086A true JPS5956086A (en) 1984-03-31

Family

ID=15821159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57165902A Pending JPS5956086A (en) 1982-09-22 1982-09-22 Cooling device for plastics molding machine

Country Status (1)

Country Link
JP (1) JPS5956086A (en)

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