JP2005254313A - Heat plate temperature control device of hot press - Google Patents

Heat plate temperature control device of hot press Download PDF

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JP2005254313A
JP2005254313A JP2004072210A JP2004072210A JP2005254313A JP 2005254313 A JP2005254313 A JP 2005254313A JP 2004072210 A JP2004072210 A JP 2004072210A JP 2004072210 A JP2004072210 A JP 2004072210A JP 2005254313 A JP2005254313 A JP 2005254313A
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medium
temperature control
control device
hot plate
expansion tank
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JP4509606B2 (en
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Shinichi Yoshikawa
伸一 吉川
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Meiki Seisakusho KK
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Meiki Seisakusho KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat plate temperature control device capable of applying the head pressure to a medium without pressure-sealing inert gas in an expansion tank. <P>SOLUTION: In the heat plate temperature control device 1 to heat or cool a medium to regulate the temperature of a heat plate 14 of a hot press, and air feeder 13 and an exhaust pipe 9 are provided on an expansion tank 8 to fill the heating medium in a medium circuit including the heat plate 14. The air feeder 13 comprises a pressure regulating valve 11 to reduce the pneumatic pressure of a pneumatic pressure source 10 and a flow regulating valve 12 to regulate the volume of the decompressed air. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、ホットプレスの熱板を温調するための媒体を加熱または冷却する熱板温度制御装置に関するものである。   The present invention relates to a hot plate temperature control apparatus for heating or cooling a medium for adjusting the temperature of a hot plate in a hot press.

ホットプレスの熱板を温調するための媒体を加熱または冷却する熱板温度制御装置は、特許文献１ないし３に記載されるように、膨張タンクを備えている。膨張タンクはその機能上熱板より上方に設けられる必要があり、熱板を多数段設けた設置高さの高いホットプレスにおいては、膨張タンクの配設が困難である。この問題を解決する手段として、特許文献１ないし３に記載されるように、膨張タンクに窒素ガス等の不活性ガスを封入して媒体を加圧することが実施されている。   As described in Patent Documents 1 to 3, a hot plate temperature control device for heating or cooling a medium for controlling the temperature of a hot press hot plate includes an expansion tank. The expansion tank needs to be provided above the hot plate due to its function, and it is difficult to dispose the expansion tank in a hot press having a high installation height in which a plurality of hot plates are provided. As means for solving this problem, as described in Patent Documents 1 to 3, pressurizing a medium by enclosing an inert gas such as nitrogen gas in an expansion tank.

しかしながら、膨張タンクに不活性ガスを加圧封入することには、圧力容器の法規制があり、その管理には様々な費用と労力を必要とする。   However, pressurizing and sealing an inert gas in an expansion tank has a pressure vessel regulation, and its management requires various costs and labor.

特公平４−２４０９号公報（第２頁、第１図）Japanese Examined Patent Publication No. 4-2409 (page 2, Fig. 1) 特許第２５７１１３９号公報（第２頁、第１図）Japanese Patent No. 2571139 (page 2, FIG. 1) 特開２００３−２０５３９９号公報（段落００１２、段落００４１）JP 2003-205399 A (paragraph 0012, paragraph 0041)

本発明は、上記の課題を解決すべくなされたものであり、膨張タンクに不活性ガスを加圧封入することなく、媒体にヘッド圧力を加えることのできる熱板温度制御装置を提供することを目的とする。   The present invention has been made to solve the above-described problems, and provides a hot plate temperature control device capable of applying a head pressure to a medium without pressurizing and sealing an inert gas in an expansion tank. Objective.

すなわち本発明は、ホットプレスの熱板を温調するための媒体を加熱または冷却する熱板温度制御装置において、前記熱板を含む媒体回路中に前記熱媒を充満させるための膨張タンクに、エア供給装置と排気管とを設けたホットプレスの熱板温度制御装置に係る。   That is, the present invention provides an expansion tank for filling the heating medium in a medium circuit including the heating plate in a heating plate temperature control device for heating or cooling a medium for adjusting the temperature of a hot pressing hot plate, The present invention relates to a hot plate temperature control device for a hot press provided with an air supply device and an exhaust pipe.

本発明は、ホットプレスの熱板を温調するための媒体を加熱または冷却する熱板温度制御装置において、前記熱板を含む媒体回路中に前記熱媒を充満させるための膨張タンクに、エア供給装置と排気管とを設けたので、多大な費用と労力なしに媒体にヘッド圧力を加えることができ、膨張タンクを比較的低い位置に配設できるとともに、媒体の温度をより高い温度まで加熱することができる。   The present invention relates to a hot plate temperature control device for heating or cooling a medium for adjusting the temperature of a hot plate of a hot press, and an expansion tank for filling the heat medium in a medium circuit including the hot plate, Since the supply device and exhaust pipe are provided, the head pressure can be applied to the medium without much cost and labor, the expansion tank can be arranged at a relatively low position, and the temperature of the medium is heated to a higher temperature. can do.

図面に基づいて本発明の実施の形態を詳細に説明する。図１は、本発明の熱板温度制御装置の媒体回路と膨張タンクの加圧機構を説明するブロック図である。   Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram for explaining a medium circuit and an expansion tank pressurizing mechanism of the hot plate temperature control apparatus of the present invention.

図１に示すように、熱板温度制御装置１は、プリント配線基板等を積層成形するホットプレスに多数段対向させて配設される熱板１４を４００℃前後まで加熱するための熱媒を、加熱または冷却して温度制御する装置である。熱板温度制御装置１のニュートラル時には、供給ポンプ４から吐出された媒体は、熱板１４に穿孔された複数の穿孔穴を流通して熱板１４を経由し、冷却三方弁６のＡＢポートからＢポートへ流通して循環する。また、循環ポンプ３が吐出した媒体は、温度センサ１５で温度が検出され、図示しない制御装置によりヒータ２で所定温度となるように通電制御されて加熱三方弁５のＡＢポートからＢポートへ流通して循環する。制御装置から加熱の指令が出たときには、媒体は温度センサ１５の検出温度に基づいて（熱板１４の近傍の管路に設けた図示しない温度センサに基づくこともある。）、加熱三方弁５のＡＢポートからＡポートへ流量が制御されて流通し、その媒体は供給ポンプ４により熱板１４に供給されて熱板１４を加熱する。このとき、冷却三方弁６はＡＢポートからＢポートへ切り換えられたままであるから、ヒータ２で加熱された媒体は、循環ポンプ３と供給ポンプ４との接続管路部で平衡を保ちながら、略全量が熱板１４に供給される。   As shown in FIG. 1, the hot plate temperature control device 1 is a heating medium for heating a hot plate 14 arranged to face a hot press for laminating and forming a printed wiring board and the like up to about 400 ° C. It is a device that controls the temperature by heating or cooling. When the hot plate temperature control device 1 is in the neutral state, the medium discharged from the supply pump 4 passes through the hot plate 14 through a plurality of perforated holes drilled in the hot plate 14, and from the AB port of the cooling three-way valve 6. Circulate and circulate to B port. Further, the temperature of the medium discharged from the circulation pump 3 is detected by the temperature sensor 15, energized and controlled by the control device (not shown) so as to reach a predetermined temperature by the heater 2, and flows from the AB port of the heating three-way valve 5 to the B port And circulate. When a heating command is issued from the control device, the medium is based on the temperature detected by the temperature sensor 15 (may be based on a temperature sensor (not shown) provided in a pipe line near the hot plate 14). The flow rate is controlled to flow from the AB port to the A port, and the medium is supplied to the hot plate 14 by the supply pump 4 to heat the hot plate 14. At this time, since the cooling three-way valve 6 is still switched from the AB port to the B port, the medium heated by the heater 2 is substantially maintained while maintaining equilibrium in the connecting line portion between the circulation pump 3 and the supply pump 4. The entire amount is supplied to the hot plate 14.

一方、制御装置から冷却の指令が出たときには、加熱三方弁５はＡＢポートからＢポートへ流通するように切り換えられる。そして、媒体は温度センサ１５の検出温度に基づいて（熱板１４の近傍の管路に設けた図示しない温度センサに基づくこともある。）、冷却三方弁６のＡＢポートからＡポートへ流量が制御されて流通し、その媒体は冷却器７で冷却された後、供給ポンプ４により熱板１４へ供給されて熱板１４を冷却する。 On the other hand, when a cooling command is issued from the control device, the heating three-way valve 5 is switched so as to flow from the AB port to the B port. The medium is flowed from the AB port of the cooling three-way valve 6 to the A port based on the temperature detected by the temperature sensor 15 (may be based on a temperature sensor (not shown) provided in a pipe line near the hot plate 14). The medium is controlled and circulated, and the medium is cooled by the cooler 7 and then supplied to the hot plate 14 by the supply pump 4 to cool the hot plate 14.

上記のような熱板１４を含めた媒体回路に媒体が常に満たされているようにするため、全ての機器の上方となる位置に、媒体回路に連通した膨張タンク８が配設される。膨張タンク８は、媒体の熱膨張による増量分を吸収した場合であっても、その上部に空間が残るような容積を有する。そして、膨張タンク８の最上部には、前記空間から大気に連通する排気管９が設けられる。さらに、膨張タンク８最上部の排気管９から離隔した位置には、エア供給装置１３が設けられる。   In order to ensure that the medium is always filled in the medium circuit including the hot plate 14 as described above, an expansion tank 8 communicating with the medium circuit is disposed at a position above all the devices. The expansion tank 8 has a volume such that a space remains in the upper part even when the increase due to the thermal expansion of the medium is absorbed. An exhaust pipe 9 that communicates from the space to the atmosphere is provided at the top of the expansion tank 8. Further, an air supply device 13 is provided at a position separated from the exhaust pipe 9 at the top of the expansion tank 8.

エア供給装置１３は、０．３〜０．４Ｍｐａの空圧源１０からのエアを０．０２Ｍｐａ程度に減圧する圧力調整弁１１と、圧力調整弁１１から膨張タンク８への管路に分岐して設けられる流量調整弁１２とからなる。エア供給装置１３から膨張タンク８へ供給されたエアは、膨張タンク８の上部空間を経由して排気管９から大気へ放出される。このとき、排気管９はその通路が絞られているので、エアは圧力調整弁１１で減圧された所定の圧力を保つのである。そして、この空圧が媒体の液面を押圧するので、媒体にはヘッド圧力が発生する。そのため、膨張タンク８は、空圧０．０２Ｍｐａが高さ２０００ｍｍに相当するので、空圧に応じてより低い位置に配設可能となり、熱板温度制御装置１の高さを低くすることができる。   The air supply device 13 branches into a pressure regulating valve 11 that depressurizes air from the air pressure source 10 of 0.3 to 0.4 Mpa to about 0.02 Mpa, and a pipe line from the pressure regulating valve 11 to the expansion tank 8. The flow rate adjusting valve 12 is provided. The air supplied from the air supply device 13 to the expansion tank 8 is discharged from the exhaust pipe 9 to the atmosphere via the upper space of the expansion tank 8. At this time, since the passage of the exhaust pipe 9 is restricted, the air maintains a predetermined pressure reduced by the pressure regulating valve 11. Since this air pressure presses the liquid level of the medium, a head pressure is generated on the medium. Therefore, since the expansion tank 8 has an air pressure of 0.02 Mpa corresponding to a height of 2000 mm, it can be disposed at a lower position according to the air pressure, and the height of the hot plate temperature control device 1 can be reduced. .

また、熱媒が加圧されることにより熱媒の蒸気圧が上昇して、より高い温度での熱板の温度制御が可能となるとともに、熱媒が気化しないので循環ポンプ３や供給ポンプ４にキャビティーションが発生せずポンプの寿命が延びる。なお、空圧を０．０２Ｍｐａ高くしたことにより、熱媒の蓄熱温度を通常の最高温度より１０℃高くすることが可能となった。   Further, when the heat medium is pressurized, the vapor pressure of the heat medium is increased, so that the temperature of the hot plate can be controlled at a higher temperature and the heat medium is not vaporized, so that the circulation pump 3 and the supply pump 4 are used. No cavitation occurs and the pump life is extended. Note that, by increasing the air pressure by 0.02 Mpa, the heat storage temperature of the heat medium can be increased by 10 ° C. from the normal maximum temperature.

この発明は以上説明した実施例に限定されるものではなく、発明の趣旨を逸脱しない範囲内において種々の変更を付加して実施することができる。   The present invention is not limited to the embodiments described above, and various modifications can be added and implemented without departing from the spirit of the invention.

本発明の熱板温度制御装置の媒体回路と膨張タンクの加圧機構を説明するブロック図である。It is a block diagram explaining the pressurization mechanism of the medium circuit and expansion tank of the hot plate temperature control apparatus of this invention.

符号の説明Explanation of symbols

１ 熱板温度制御装置
２ ヒータ
３ 循環ポンプ
４ 供給ポンプ
５ 加熱三方弁
６ 冷却三方弁
７ 冷却器
８ 膨張タンク
９ 排気管
１０ 空圧源
１１ 圧力調整弁
１２ 流量調整弁
１３ エア供給装置
１４ 熱板
１５ 温度センサ DESCRIPTION OF SYMBOLS 1 Hot plate temperature control apparatus 2 Heater 3 Circulation pump 4 Supply pump 5 Heating three-way valve 6 Cooling three-way valve 7 Cooler 8 Expansion tank 9 Exhaust pipe 10 Air pressure source 11 Pressure adjustment valve 12 Flow rate adjustment valve 13 Air supply device 14 Heat plate 15 Temperature sensor

Claims (2)

ホットプレスの熱板を温調するための媒体を加熱または冷却する熱板温度制御装置において、
前記熱板を含む媒体回路中に前記熱媒を充満させるための膨張タンクに、エア供給装置と排気管とを設けたことを特徴とするホットプレスの熱板温度制御装置。 In a hot plate temperature control device for heating or cooling a medium for temperature control of a hot press hot plate,
A hot plate temperature control device for a hot press, wherein an air supply device and an exhaust pipe are provided in an expansion tank for filling the heat medium in a medium circuit including the heat plate. 前記エア供給装置は、空圧源の空圧を減圧する圧力調整弁と、減圧された空気の量を調整する流量調整弁とからなる請求項１に記載のホットプレスの熱板温度制御装置。   2. The hot plate temperature control device of a hot press according to claim 1, wherein the air supply device includes a pressure adjustment valve for reducing the air pressure of the air pressure source and a flow rate adjustment valve for adjusting the amount of the reduced air.
JP2004072210A 2004-03-15 2004-03-15 Hot press hot plate temperature control device Expired - Fee Related JP4509606B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100934042B1 (en) * 2009-05-15 2009-12-29 조중상 Apparatus for controlling temperature of thermal oil
CN106945338A (en) * 2017-03-30 2017-07-14 扬力集团股份有限公司 A kind of control system of forcing press dry clutch brake
CN111705427A (en) * 2020-07-26 2020-09-25 潍坊驼王实业有限公司 Hot air conveying device of polyester filament non-woven geotextile production equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5628399A (en) * 1979-08-16 1981-03-19 Sanki Eng Co Ltd Control device for water hammer preventive air tank in liquid transfer pipeline
JPS63302011A (en) * 1987-06-02 1988-12-08 Meiki Co Ltd Heating plate temperature control device for hot press
JPH03197044A (en) * 1989-12-26 1991-08-28 Meiki Co Ltd Hot plate temperature control apparatus in hot press
JP2003205399A (en) * 2001-11-06 2003-07-22 Kitagawa Elaborate Mach Co Ltd Press device, and control method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5628399A (en) * 1979-08-16 1981-03-19 Sanki Eng Co Ltd Control device for water hammer preventive air tank in liquid transfer pipeline
JPS63302011A (en) * 1987-06-02 1988-12-08 Meiki Co Ltd Heating plate temperature control device for hot press
JPH03197044A (en) * 1989-12-26 1991-08-28 Meiki Co Ltd Hot plate temperature control apparatus in hot press
JP2003205399A (en) * 2001-11-06 2003-07-22 Kitagawa Elaborate Mach Co Ltd Press device, and control method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100934042B1 (en) * 2009-05-15 2009-12-29 조중상 Apparatus for controlling temperature of thermal oil
CN106945338A (en) * 2017-03-30 2017-07-14 扬力集团股份有限公司 A kind of control system of forcing press dry clutch brake
CN106945338B (en) * 2017-03-30 2019-03-01 扬力集团股份有限公司 A kind of control system of press machine dry clutch brake
CN111705427A (en) * 2020-07-26 2020-09-25 潍坊驼王实业有限公司 Hot air conveying device of polyester filament non-woven geotextile production equipment

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