JP2000246737A - Cooling air jetting apparatus - Google Patents
Cooling air jetting apparatusInfo
- Publication number
- JP2000246737A JP2000246737A JP11052475A JP5247599A JP2000246737A JP 2000246737 A JP2000246737 A JP 2000246737A JP 11052475 A JP11052475 A JP 11052475A JP 5247599 A JP5247599 A JP 5247599A JP 2000246737 A JP2000246737 A JP 2000246737A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- mold
- cooled
- cooling
- cooling air
- 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
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 41
- 239000000112 cooling gas Substances 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば射出成形機
の金型を直接冷却するのに好適な冷却気体噴出装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling gas ejection device suitable for directly cooling a mold of an injection molding machine, for example.
【０００２】[0002]
【発明の目的】常温の気体（空気）を吹き付けるだけで
は、被冷却物を迅速且つ確実に冷却することが出来ない
場合に、有効に使用することが出来る冷却気体噴出装置
を提供することを目的とするものである。SUMMARY OF THE INVENTION An object of the present invention is to provide a cooling gas ejection device which can be used effectively when an object to be cooled cannot be cooled quickly and reliably only by blowing gas (air) at ordinary temperature. It is assumed that.
【０００３】[0003]
【前記目的を達成するための手段】本発明は前記目的を
達成するために以下の如き手段を採用した。請求項１の
発明は、気体噴出ノズルと、この気体噴出ノズルに接続
されると共に途中に開閉弁を有する気体導管と、この気
体導管に接続された気体供給源と、前記気体導管の熱交
換部を冷却する冷却機とを有しているものである。請求
項２の発明は、前記冷却機が補助蒸発器を有している請
求項１記載のものである。Means for Achieving the Object The present invention employs the following means to achieve the object. According to a first aspect of the present invention, there is provided a gas ejection nozzle, a gas conduit connected to the gas ejection nozzle and having an on-off valve in the middle, a gas supply source connected to the gas conduit, and a heat exchange unit of the gas conduit. And a cooler for cooling the water. The invention according to claim 2 is the one according to claim 1, wherein the cooler has an auxiliary evaporator.
【０００４】[0004]
【発明の効果】本発明は前記した如き構成によって以下
の如き効果を奏する。 請求項１の発明によれば、被冷却物に直接に冷却気体
を吹き付けて被冷却物を冷却することが出来るので、被
冷却物の冷却を迅速且つ確実に行なうことが出来る。 請求項２の発明によれば、冷却機が補助蒸発器を有し
ているので、気体噴出ノズルから冷却気体が噴出されて
いないときにおいて、即ち、気体の流れが停止していて
気体が流れている場合に比較して冷却機の蒸発器におい
て冷媒が気体から奪う熱が少ない場合、気化しきれない
液状の冷媒を補助蒸発器において強制的に気化させて、
冷却機の圧縮機に液状の冷媒が至らないようにして、冷
却機の圧縮機を保護することが出来る。According to the present invention, the following effects can be obtained by the above configuration. According to the first aspect of the present invention, the object to be cooled can be cooled by directly blowing the cooling gas to the object to be cooled, so that the object to be cooled can be cooled quickly and reliably. According to the invention of claim 2, since the cooler has the auxiliary evaporator, when the cooling gas is not ejected from the gas ejection nozzle, that is, when the gas flow is stopped and the gas flows, If less heat is taken by the refrigerant from the gas in the evaporator of the cooler than in the case where the liquid refrigerant that cannot be vaporized is forcibly vaporized in the auxiliary evaporator,
By preventing liquid refrigerant from reaching the compressor of the cooler, the compressor of the cooler can be protected.
【０００５】[0005]
【発明の実施の形態】以下に本発明の実施の形態を説明
する。公知の射出成形機１は、射出部２と、射出部２の
先端（図１の左側端）側に位置する固定盤３と、この固
定盤３に対向する、図１において左右動自在となされた
可動盤４とを有している。前記固定盤３には金型６の固
定型７が固定され、可動盤４には金型６の可動型８が固
定されている。Embodiments of the present invention will be described below. A known injection molding machine 1 is configured such that an injection unit 2, a fixed platen 3 located at the tip end (left end in FIG. 1) of the injection unit 2, and can move left and right in FIG. Movable platen 4. A fixed mold 7 of a mold 6 is fixed to the fixed board 3, and a movable mold 8 of the mold 6 is fixed to the movable board 4.
【０００６】金型６が開いた際に固定型７と可動型８と
の間に入り込み、金型６が閉じた際に金型６と衝突・干
渉しないように退避するように、固定型７又は可動型８
の少なくとも一方に気体噴出口１２が対向する気体噴出
ノズル１１が、金型６に対して進退移動自在となされて
いる。気体噴出ノズル１１を進退移動させる作動装置
（図示略）は公知の任意のものが使用される。気体噴出
ノズル１１が金型６が開いた際に固定型７と可動型８と
の間に入り込む方向は、上・下・左・右いずれからでも
よい。When the mold 6 is opened, it enters between the fixed mold 7 and the movable mold 8, and when the mold 6 is closed, the fixed mold 7 is retracted so as not to collide with or interfere with the mold 6. Or movable type 8
The gas ejection nozzle 11 whose gas ejection port 12 is opposed to at least one of them is configured to be movable forward and backward with respect to the mold 6. Any known actuator (not shown) for moving the gas ejection nozzle 11 forward and backward may be used. The direction in which the gas ejection nozzle 11 enters between the fixed mold 7 and the movable mold 8 when the mold 6 is opened may be from any of the upper, lower, left, and right sides.
【０００７】前記気体噴出ノズル１１には断熱機能を有
する可撓性気体導管１４が接続され、この可撓性気体導
管１４に開閉弁１５が接続され、この開閉弁１５には気
体導管１６の熱交換部１７が接続され、この熱交換部１
７の他端は除湿器２０の出口に接続され、この除湿器２
０の入口にアキュムレーター１８の出口が接続され、こ
のアキュムレーター１８の入口にコンプレッサー１９の
吐出口が接続されている。前記除湿器２０は、気体に含
まれる水分を除去して、気体の露点を摂氏−４０度以下
程度として、冷却される気体の含有水分を少なくして熱
交換部１７内で凍結することを防止するための機器であ
る。アキュムレーター１８とコンプレッサー１９とによ
って気体供給源２１が構成されているが、気体供給源２
１の構造は任意である。[0007] A flexible gas conduit 14 having a heat insulating function is connected to the gas ejection nozzle 11, and an on-off valve 15 is connected to the flexible gas conduit 14. The exchange unit 17 is connected to the heat exchange unit 1.
7 is connected to the outlet of the dehumidifier 20.
The outlet of the accumulator 18 is connected to the inlet of the compressor 0, and the outlet of the compressor 19 is connected to the inlet of the accumulator 18. The dehumidifier 20 removes the moisture contained in the gas, sets the dew point of the gas to about -40 degrees Celsius or less, reduces the moisture contained in the gas to be cooled, and prevents the gas from being frozen in the heat exchange unit 17. It is a device for performing. The gas supply source 21 is constituted by the accumulator 18 and the compressor 19,
The structure of 1 is optional.
【０００８】前記熱交換部１７は、冷却機２３の蒸発器
２８内に位置させられている。前記冷却機２３は、圧縮
機２４、凝縮器２５、受液室２６、膨張弁２７、蒸発器
２８及び補助蒸発器２９を有しており、それらがエンド
レスの冷媒循環路を構成している。なお、蒸発器２８で
は複数の冷媒導管が、熱交換の効率を上げるため、換言
すれば、気体の冷却効率を上げるため、並列に配管され
ている。また、補助蒸発器２９は、大気を冷媒導管に吹
き付ける送風用ファン（図示略）を有している。また、
凝縮器２５も、大気を冷媒導管に吹き付ける冷却用ファ
ン（図示略）を有している。前記補助蒸発器２９は以下
の機能を有している。気体の流れが停止していて気体が
流れている場合に比較して冷却機２３の蒸発器２８にお
いて冷媒が気体から奪う熱が少ない場合、気化しきれな
い液状の冷媒を補助蒸発器２９において強制的に気化さ
せて、冷却機２３の圧縮機２４に液状の冷媒が至らない
ようにして、冷却機２３の圧縮機２４を保護している。The heat exchange section 17 is located inside an evaporator 28 of the cooler 23. The cooler 23 has a compressor 24, a condenser 25, a liquid receiving chamber 26, an expansion valve 27, an evaporator 28, and an auxiliary evaporator 29, and these constitute an endless refrigerant circulation path. In the evaporator 28, a plurality of refrigerant conduits are arranged in parallel in order to increase the efficiency of heat exchange, in other words, to increase the cooling efficiency of the gas. Further, the auxiliary evaporator 29 has a blower fan (not shown) for blowing the air to the refrigerant conduit. Also,
The condenser 25 also has a cooling fan (not shown) for blowing air to the refrigerant conduit. The auxiliary evaporator 29 has the following functions. When less heat is taken from the gas by the refrigerant in the evaporator 28 of the cooler 23 than in the case where the gas flow is stopped and the gas is flowing, the liquid refrigerant that cannot be vaporized is forcibly forced in the auxiliary evaporator 29. The compressor 24 of the cooler 23 is protected by preventing the liquid refrigerant from reaching the compressor 24 of the cooler 23 by gasification.
【０００９】[0009]
【発明の実施の形態の作用】次に発明の実施の形態の作
用を説明する。コンプレッサー１９及び圧縮機２４は常
時作動している。金型６が開いて成形品が取り出される
と、気体噴出ノズル１１がその作動装置（図示略）によ
って退避位置から固定型７と可動型８との間に突出させ
られる。その後、今まで閉じていた開閉弁１５が所定時
間だけ開く。その結果、気体噴出口１２より金型６に向
かって冷却気体（例えば、摂氏−３０度前後の温度のも
の）が噴出される。その後、気体噴出ノズル１１は退避
位置に戻る。そうすると、金型６が閉じ次の成形が行な
われる。Next, the operation of the embodiment of the present invention will be described. The compressor 19 and the compressor 24 are always operating. When the mold 6 is opened and the molded product is taken out, the gas ejection nozzle 11 is caused to protrude from the retracted position between the fixed mold 7 and the movable mold 8 by its operating device (not shown). Thereafter, the on-off valve 15 that has been closed is opened for a predetermined time. As a result, a cooling gas (for example, one having a temperature of about −30 degrees Celsius) is ejected from the gas ejection port 12 toward the mold 6. Thereafter, the gas ejection nozzle 11 returns to the retracted position. Then, the mold 6 is closed and the next molding is performed.
【００１０】[0010]
【変形例等】以下に変形例等について説明を加える。 （１）冷却機２３を、物を入れることが出来る冷却室を
有するものとし、その冷却室に熱交換部１７を収納する
ようにしてもよい。 （２）補助蒸発器２９はない場合もある。 （３）被冷却物は金型６に限定されない。 （４）凝縮器２５は、水冷式のものであってもよい。[Modifications and the like] Modifications and the like will be described below. (1) The cooler 23 may have a cooling chamber in which an object can be put, and the heat exchange unit 17 may be housed in the cooling chamber. (2) The auxiliary evaporator 29 may not be provided. (3) The object to be cooled is not limited to the mold 6. (4) The condenser 25 may be a water-cooled type.
【図１】本発明の実施の形態を示す系統図である。FIG. 1 is a system diagram showing an embodiment of the present invention.
【符号の説明】 １ 射出成形機 １１ 気体噴出ノズル １２ 気体噴出口 １４ 可撓性気体導管 １５ 開閉弁 １６ 気体導管 １７ 熱交換部 １８ アキュムレーター １９ コンプレッサー ２１ 気体供給源 ２３ 冷却機 ２８ 蒸発器DESCRIPTION OF SYMBOLS 1 Injection molding machine 11 Gas ejection nozzle 12 Gas ejection port 14 Flexible gas conduit 15 Open / close valve 16 Gas conduit 17 Heat exchange unit 18 Accumulator 19 Compressor 21 Gas supply source 23 Cooler 28 Evaporator
Claims (2)
に接続されると共に途中に開閉弁を有する気体導管と、
この気体導管に接続された気体供給源と、前記気体導管
の熱交換部を冷却する冷却機とを有している冷却気体噴
出装置。1. A gas ejection nozzle, a gas conduit connected to the gas ejection nozzle and having an on-off valve in the middle thereof.
A cooling gas ejection device having a gas supply source connected to the gas conduit and a cooler for cooling a heat exchange section of the gas conduit.
求項１記載の冷却気体噴出装置。2. The cooling gas ejection device according to claim 1, wherein the cooling device has an auxiliary evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11052475A JP2000246737A (en) | 1999-03-01 | 1999-03-01 | Cooling air jetting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11052475A JP2000246737A (en) | 1999-03-01 | 1999-03-01 | Cooling air jetting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000246737A true JP2000246737A (en) | 2000-09-12 |
Family
ID=12915758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11052475A Pending JP2000246737A (en) | 1999-03-01 | 1999-03-01 | Cooling air jetting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000246737A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4524331B1 (en) * | 2009-08-27 | 2010-08-18 | 新田谷 敦 | Casting method |
-
1999
- 1999-03-01 JP JP11052475A patent/JP2000246737A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4524331B1 (en) * | 2009-08-27 | 2010-08-18 | 新田谷 敦 | Casting method |
| JP2011045907A (en) * | 2009-08-27 | 2011-03-10 | Nittaya Atsushi | Casting method |
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Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20031212 |
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