CN102137752A - Press apparatus - Google Patents
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- CN102137752A CN102137752A CN2009801339208A CN200980133920A CN102137752A CN 102137752 A CN102137752 A CN 102137752A CN 2009801339208 A CN2009801339208 A CN 2009801339208A CN 200980133920 A CN200980133920 A CN 200980133920A CN 102137752 A CN102137752 A CN 102137752A
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- heat
- thermal medium
- temperature
- accumulation
- path
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/062—Press plates
- B30B15/064—Press plates with heating or cooling means
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- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The present invention provides a press apparatus, which cools hot plates while pressing a subject to be worked, after the subject was hot-pressed between the hot plates, and which then cold-presses the subject. The press apparatus comprises: a hot medium circulating passage, in which a heat medium passing through the hot plates and exchanging the heat with the hot plates circulates; a pump for circulating the heat medium in the hot medium circulating passage; a heating means for heating the heat medium; a first branch route branched from the hot medium circulating passage and returning again to the hot medium circulating passage; a regenerating means disposed in the first branch route and exchanging the heat with the heat medium passing through the branch route; a second branch route branched from the hot medium circulating passage and returning again to the hot medium circulating passage; a cooling means disposed in the second branch route for cooling the heat medium passing through the branch route; a first temperature detecting means for detecting the temperature of the heat medium in the heat medium circulating passage or the hot plates; a second temperature detecting means for detecting the temperature of the regenerating means; and a circulation route control means for controlling the flows of the heat media to the first and second branch routes, on the basis of the temperatures detected by the first and second temperature detecting means.
Description
Technical field
The present invention relates to a kind of between the heat dish decompressor with the machined object drawing.
Background technology
The machined object that the resin material and the Copper Foil of pre-impregnated sheet (prepreg sheet) etc. piled up formation heats between the heat dish and pressurizes (drop stamping) and the decompressor that forms goods such as printed circuit board (PCB) is used widely.When using this kind decompressor that goods are shaped, during for fear of refrigerated product after drop stamping, goods carry out the cold stamping of cooling off because of thermal stress produces warpage or distortion etc. under the state of pressed part between the heat dish.
In TOHKEMY 2002-153999 number (Japanese publication communique) etc., propose to have and use identical heat dish to carry out drop stamping and cold-stamped device.The decompressor that is recorded in TOHKEMY 2002-153999 number is that thermal medium is circulated in by the thermal medium circulation stream in the heat dish by pump etc., and the temperature by heater and cooler control thermal medium, can carry out the heating and the cooling of heat dish.
Summary of the invention
Identical hot coiling in hocket drop stamping and the cold-stamped decompressor, because whenever carry out a drawing, need the heat dish be heated to the heat energy that forming temperature is used from normal temperature, so the power consumption height of heater by heater fed as above-mentioned use.In other words, because outside being exhausted from system when the cold stamping from the heat of heater fed during drop stamping, so all produce a large amount of used heat when goods are shaped, the utilization ratio of heat energy is not high.
The present invention realizes that In view of the foregoing purpose is to provide a kind of high decompressor of utilization ratio of heat energy.
A kind of decompressor is provided according to the embodiment of the present invention, and it makes the variations in temperature of this heat dish under the state of pressurization machined object between the heat dish, carry out drop stamping and cold stamping continuously.This decompressor is characterised in that to possess: thermal medium circulating path, its part are to be made of the stream that is formed in the heat dish, and the thermal medium that is used to adjust the temperature of this heat dish is circulated in wherein; The pump that thermal medium is circulated in the thermal medium circulating path; Heating arrangements with the thermal medium heating; First individual path, it returns the thermal medium circulating path again after thermal medium circulating path branch; Accumulation of heat mechanism, it is arranged in first individual path, and by carrying out heat exchange between the thermal medium of individual path; Second individual path, it returns the thermal medium circulating path again after thermal medium circulating path branch; Cooling body, it is arranged in second individual path, and cooling is by the thermal medium of individual path; First temperature testing organization, it detects thermal medium or hot temperature of coiling in the thermal medium circulating path; Second temperature testing organization, it detects the temperature of accumulation of heat mechanism; With the circulating path controlling organization, it is controlled thermal medium and flows to first individual path and second individual path according to by first temperature testing organization and the detected temperature of second temperature testing organization; The circulating path controlling organization is controlled flowing of thermal medium as follows: when the beginning cold stamping, make thermal medium flow into first individual path, make accumulation of heat mechanism store heat, then in beginning during drop stamping, utilize thermal medium to flow into first individual path and the heat that is stored in accumulation of heat mechanism is come the heat hot medium.
When adopting above-mentioned embodiment, the part of heat that can be supplied to the heat dish when making the drop stamping step when cold stamping accumulation of heat in accumulation of heat mechanism, carry out the cooling of heat dish, when the drop stamping of the machined object that carries out the back, accumulation of heat is delivered to the heat dish and the heat dish is heated in the heat of accumulation of heat mechanism.Thereby the waste heat in the shaping once and the goods needed heat that is shaped is compared the amount of the amount of stored heat that has reduced heat-storing material.In addition, because the caloric value of heating arrangements has been suppressed the amount of the amount of stored heat of heat-storing material, so can realize the decompressor that the consumed energy of heating arrangements is little.
In the above-described embodiment, the circulating path controlling organization is preferably controlled flowing of thermal medium as follows: when reducing the temperature of thermal medium for cold stamping, make thermal medium flow into first individual path after, make thermal medium flow into second individual path.In addition, the circulating path controlling organization is preferably as follows mode and controls flowing of thermal medium: the temperature of thermal medium in being judged as the thermal medium circulating path or heat dish and the temperature of accumulation of heat mechanism form when approaching the state of poised state, do not make thermal medium flow into the first thermal medium individual path.In addition, the circulating path controlling organization is preferably controlled flowing of thermal medium as follows: when the circulating path controlling organization improves the temperature of thermal medium for drop stamping, when making thermal medium flow into first individual path, do not make the heating arrangements action, when not making thermal medium flow into first individual path, make the heating arrangements action.In addition, the circulating path controlling organization is preferably controlled flowing of thermal medium as follows: when heat mobile that carries out between thermal medium and the accumulation of heat mechanism, make the whole thermal mediums that circulate in the thermal medium circulating path flow into first individual path.
As above-mentioned, during formation circulating path controlling organization, can effectively utilize the heat energy that is stored in accumulation of heat mechanism.
The decompressor of above-mentioned embodiment preferably also possesses the first flow that is arranged at accumulation of heat mechanism and adjusts valve in first individual path, the circulating path controlling organization can be adjusted the aperture of valve by the control first flow, adjust the flow of the thermal medium that flows into first individual path, the temperature of accumulation of heat mechanism is controlled.And then the circulating path controlling organization is controlled the aperture that first flow is adjusted valve as follows: during the temperature of heat dish is maintained at forming temperature, make the part of thermal medium flow into above-mentioned first individual path.
During formation circulating path controlling organization, the time that the temperature from the beginning drop stamping to the heat dish reaches forming temperature shortens, and can make more multiple products with the short time as above-mentioned.
The decompressor of above-mentioned embodiment also can also possess from the thermal medium circulating path branch of the upstream side of heat dish and towards the 3rd individual path of cooling body; With second flow rate regulating valve that is arranged at the 3rd individual path.In this case, the circulating path controlling organization is adjusted the flow of walking around the heat dish and flowing to the thermal medium of cooling body by the aperture of control second flow rate regulating valve.And then the circulating path controlling organization is when drop stamping, so that the temperature of heat dish is maintained at the aperture that the mode of the forming temperature of machined object is controlled second flow rate regulating valve; When cold stamping, so that the temperature of heat dish is maintained at the aperture that the mode of normal temperature is controlled second flow rate regulating valve.
As above-mentioned, during formation circulating path controlling organization, can the heat dish be remained on uniform temperature with good precision.
In addition, preferred cycle path controlling organization is when drop stamping, and the temperature of thermal medium in the thermal medium circulating path or heat dish reaches before the forming temperature of machined object, closes second flow rate regulating valve fully; When cold stamping, the temperature of thermal medium in the thermal medium circulating path or heat dish is closed flow rate regulating valve before reaching normal temperature fully.
As above-mentioned, during formation circulating path controlling organization, the temperature of heat dish is changed rapidly, reach forming temperature or normal temperature fast.
In one embodiment of the invention, heating arrangements is the heater that is built in the heat dish.
In this case, because heating arrangements is contained in the heat dish, thus need not guarantee the space that is provided with of heating arrangements separately, and realize the decompressor of small-sized and simple structure.
In the other embodiment of the present invention, heating arrangements be can the heat hot medium in heat dish outside heater.
In this case, the restriction of the kind of employed heater, size etc. is relaxed, and the range of choice of heater enlarges, and can select to be more suitable for the heater of performance, cost.
In one embodiment of the invention, accumulation of heat mechanism also can have by at least one the formed heat accumulation plate of material that comprises in copper, aluminium, the iron.
When accumulation of heat mechanism adopts the sensible heat type heat exchanger of such simple structure, can cheaply realize the good accumulation of heat mechanism of thermal characteristics.In addition, in this case, heat accumulation plate is preferably covered by heat-barrier material.Suppress to be stored in the dispersing of heat of heat accumulation plate with heat-barrier material, the utilization ratio of energy further improves.
Description of drawings
Fig. 1 is the summary construction diagram of the decompressor of expression first embodiment of the invention.
Fig. 2 A is the summary construction diagram of the accumulation of heat mechanism that uses in the embodiments of the present invention of expression.
Fig. 2 B figure is I-I ' the line sectional view of Fig. 2 A.
Fig. 3 is the process chart in the basic example of first embodiment of the invention.
Fig. 4 is the heat dish during the punching press of the expression basic example of first embodiment of the invention and second embodiment is handled and the temperature variation of accumulation of heat mechanism.
Fig. 5 is the accompanying drawing of accumulation of heat path Rs in the basic example of expression first embodiment of the invention.
Fig. 6 is the accompanying drawing of circulating path Ro in the basic example of expression first embodiment of the invention.
Fig. 7 is the accompanying drawing of cooling path Rc in the basic example of expression first embodiment of the invention.
Fig. 8 is the accompanying drawing of circulating path Ro in the variation one of expression first embodiment of the invention.
Fig. 9 is the process chart in the variation one of first embodiment of the invention.
Figure 10 is the heat dish during the punching press of expression variation one of first embodiment of the invention and variation two is handled and the temperature variation of accumulation of heat mechanism.
Figure 11 is the accompanying drawing of circulating path Ro in the variation two of expression first embodiment of the invention.
Figure 12 be the expression first embodiment of the invention variation two in process chart.
Figure 13 is the summary construction diagram of the decompressor of expression second embodiment of the invention.
Figure 14 is the process chart in the second embodiment of the invention.
Figure 15 is the accompanying drawing of the accumulation of heat path Rs ' in the expression second embodiment of the invention.
Figure 16 is the accompanying drawing of the circulating path Ro ' in the expression second embodiment of the invention.
Figure 17 is the accompanying drawing of the cooling path Rc ' in the expression second embodiment of the invention.
The specific embodiment
Following with reference to accompanying drawing, embodiments of the present invention are elaborated.Fig. 1 represents the schematic configuration of the decompressor 101 of first embodiment of the invention (example substantially).Decompressor 101 is to pile up machined object S heating and pressurization (drop stamping) between flat heat dish of resin material such as pre-impregnated sheet and Copper Foil, and the decompressor that goods such as printed circuit board (PCB) are shaped.As shown in Figure 1, decompressor 101 has up and down three flat heat dishes (top heat dish 123, intermediate heat dish 124 and bottom heat dish 125) side by side.Below top heat dish 123, above the intermediate heat dish 124 and below and bottom heat dish 125 above be formed with the stamping surface that is used to push machined object S respectively.Configuration machined object S between the relative stamping surface of adjacent 2 heat dishes, drop stamping machined object S between heated heat dish and goods are shaped.In addition, in the present embodiment, because intermediate heat dish 124 is one decks, so the machined object S quantity of punching press simultaneously is two.But, in other embodiment, also two-layer above intermediate heat dish 124 can be arranged between top heat dish 123 and the bottom heat dish 125, and the machined object S of drawing simultaneously more than three.
Machined object S comprises resin materials such as pre-impregnated sheet, with the processing temperature of resin material (when resin material is thermosetting resin, be than the temperature that begins the high prescribed limit of hardening temperature, during for thermoplastic resin, for example be the temperature of the prescribed limit higher than glass transformation temperature) drawing (drop stamping step).In addition, be cooled to before the normal temperature because thermal stress and produce warpage etc. on machined object S for fear of the machined object S of the high temperature after drop stamping, machined object S is cooled under the state that is stamped between the heat dish near normal temperature (cold stamping step).In order to carry out this processing, the decompressor 101 of first embodiment of the invention can coil heat 123,124,125 temperature and be controlled between the high temperature and the temperature near normal temperature that carries out the drop stamping step.
Secondly, the temperature control device to heat dish 123,124,125 describes.In first embodiment of the present invention, in order to suppress the non-uniform temperature (temperature distributing disproportionation is even on stamping surface) that heat is coiled, spreading all in inside of each heat dish has for the mobile stream of silicone oil liquid heat mediums such as (silicon oil).Thereby thermal medium absorbs heat from high-temperature portion, and with the heat supply that absorbed to low-temp. portion, to suppress the non-uniform temperature of heat dish.In addition, dispose the heater H that is used for the thermal medium heating in the stream in being formed at each heat dish.In first embodiment, heater H is used cartridge heater (cartridge heater).The heat dish of built-in this kind cartridge heater for example is recorded in TOHKEMY 2002-153999 number the patent documentation.
At this, describe with regard to the mechanism that makes thermal medium be circulated in thermal medium circulation stream.Thermal medium circulates in thermal medium circulation stream by the pressure of 131 supplies from the pump unit.The part of thermal medium circulation stream is branched off into a plurality of streams, and the stream that separates is respectively by after in the corresponding heat dish, collaborates once again and returns pump unit 131.Between the pump discharge 131o of pump unit 131 and each heat dish 123,124,125, be provided with and be used for the thermal medium branch's block 141 that stream separates that circulates.In addition, between the pump intake 131i of each heat dish 123,124,125 and pump unit 131, be provided with the interflow block 142 that is used to make the thermal medium circulation stream that separates to collaborate once again.The two ends of stream that are formed at each heat dish 123,124,125 inside are respectively as thermal medium inlet 123i, 124i, 125i and thermal medium outlet 123o, 124o, 125o and at heat dish outside opening.As shown in Figure 1, thermal medium inlet 123i, the 124i of each heat dish, 125i are connected to a plurality of thermal medium outlet 141o that are located at branch's block 141 by flexible pipe.Similarly, thermal medium outlet 123o, the 124o of each heat dish, 125o are connected to a plurality of thermal medium inlet 142i that are located at interflow block 142 by flexible pipe.In addition, via each member described later, and the conduit by stainless steel etc., the pump discharge 131o of pump unit 131 is connected in the thermal medium inlet 141i of branch's block 141, and the thermal medium outlet 142o of interflow block 142 is connected in the pump intake 131i of pump unit 131.Promptly, the thermal medium of sending from the pump discharge 131o of pump unit 131 is separated into a plurality of (present embodiment is 3) stream branch's block 141 after, by each heat dish 123,124,125, collaborate into a stream once again by interflow block 142 after, return the pump intake 131i of pump unit 131.
In the basic example of first embodiment of the invention, the thermal medium outlet 142o of interflow block 142 is connected in the inlet 151i of three-way switch valve 151.Three-way switch valve 151 is can be exporting 151o from first from the thermal medium of inlet 151i importing
1Or second the outlet 151o
2The valve that the mode of sending is switched.The second outlet 151o
2Be connected with the accumulation of heat of returning pump unit 131 via accumulation of heat described later mechanism 132 with branch's stream 166.In addition, the first outlet 151o
1Be connected with the thermal medium circulation stream that does not return pump unit 131 via accumulation of heat mechanism 132.That is, can be by three-way switch valve 151 control thermal mediums whether by accumulation of heat mechanism 132.
In addition, export 151o at first of three-way switch valve 151
1And be provided with first branching portion 161 between the pump intake 131i.The cooling branch's stream 162 that returns pump unit 131 via the cooler 133 that is used for heat of cooling medium is arranged from first branching portion, 161 branches.Flow into cooling and use the thermal medium of branch's stream 162 to enter the mouth 133i thermotropism media outlet 133o by behind the cooler 133, collaborate in thermal medium circulation stream in the first interflow portion 163 from thermal medium.Use in branch's stream 162 and the thermal medium circulation stream in cooling, after first branching portion 161, be respectively equipped with first stop valve 152 and second stop valve 154.That is, can whether pass through cooler 133 by first stop valve 152 and second stop valve, 154 control thermal mediums.
In addition, between the pump discharge 131o of thermal medium circulation stream and branch's block 141, be provided with second branching portion 164.Have towards the temperature adjustment of the thermal medium of cooler 133 inlet 133i with branch's stream 165 from second branching portion, 164 branches.The temperature adjustment with branch's stream 165 dispose diaphragm valve 153 midway, can adjust and flow into the flow of temperature adjustment with the thermal medium of branch's stream 165.When diaphragm valve 153 was opened a little, the part of the thermal medium of sending from pump discharge 131o branched to the temperature adjustment with branch's stream 165 second branching portion 164, and by returning pump unit 131 once again after cooler 133 coolings.Therefore, the aperture by adjusting diaphragm valve 153 can meticulous adjustment be supplied to the temperature of the thermal medium of heat dish 123,124,125.
At this, consider that switching three-way transfer valve 151 makes the thermal medium that will import from the inlet 151i of three-way switch valve from the first outlet 151o
1Send to the situation of thermal medium circulation stream.At this moment, under diaphragm valve 153 complete closing state, open first stop valve 152, and when closing second stop valve 154, because from the first outlet 151o of three-way switch valve
1The thermal medium of sending is all flowed through cooling with branch's stream 162 and by cooler 133, so thermal medium cools off rapidly.In addition, because diaphragm valve 153 closes fully, so the thermal medium of the low temperature of sending by pump unit 131 all is supplied to heat dish 123,124,125, and heat of cooling dish rapidly.In addition, closing first stop valve 152 and opening under the state of second stop valve 154, from the first outlet 151o of three-way switch valve 151
1Therefore the obstructed subcooler 133 of thermal medium that flows out is to return pump unit 131 under the state that temperature reduces hardly.So, first stop valve 152 and second stop valve 154 use when switching the cooling rapidly of whether carrying out the heat dish.
In addition, between second stop valve 154 of thermal medium circulation stream and the first interflow portion 163, be provided with the second interflow portion 167.In this second interflow portion 167, from the second outlet 151o of three-way switch valve 151
2The accumulation of heat of branch is collaborated in thermal medium circulation stream with branch's stream 166.Accumulation of heat with branch's stream 166 be provided with accumulation of heat mechanism 132 midway, heat energy is enough to be moved with between the thermal medium of branch's stream 166 and the accumulation of heat mechanism 132 flowing into accumulation of heat.
At this, with reference to the structure of Fig. 2 A and Fig. 2 B explanation accumulation of heat mechanism 132.The accumulation of heat mechanism 132 of first embodiment of the invention is the tabular component that is formed with the thermal medium stream of complications (crawling) in inside.Fig. 2 A is the summary sectional view in the accumulation of heat mechanism 132 that the face that is formed with stream cuts off.In addition, Fig. 2 B is the summary sectional view that the I-I ' section in Fig. 2 A cuts off.Shown in Fig. 2 A and Fig. 2 B, accumulation of heat mechanism 132 have thermal insulation layer 1324 with polyurethane foam (urethane foam) cover the heat accumulation plate 1322 that forms with aluminium around, the further structure that surrounds with stainless baffle 1326.In heat accumulation plate 1322, be formed with tortuous thermal medium stream 1320.Be equipped with in thermal medium stream 1320 openings at two ends and be used for the tubulature that is connected with branch's stream 166 with accumulation of heat, become inlet 132i and outlet 132o respectively.So the accumulation of heat mechanism 132 of the first embodiment of the invention that constitutes becomes the sensible heat type accumulation of heat mechanism of economy and excellent in workability.
In addition, the structure of accumulation of heat mechanism 132 is not limited to above-mentioned first embodiment.For example the material of heat accumulation plate 1322 is suitably for pyroconductivity and the high metal material of specific heat, for example also can use copper, aluminium or copper alloy, aluminium alloy.Also can use stainless steel.In addition, in the heat accumulation plate 1322 of first embodiment, be formed with a tortuous thermal medium stream 1320, but also can form the thermal medium stream 1320 of a plurality of parallel connections.In this case, the two ends of a plurality of thermal medium streams 1320 become the structure at the inside or the outer branches/interflow of heat accumulation plate 1322.In addition, in this case, thermal medium stream 1320 also can not be the tortuous linearity that forms.In addition, for example also can use the metal derby metal derby of flat column (for example cylindric and) that is formed with the wall thickness of pipe at central portion to come the substituted metal plate.In addition, also can use by high other solid material (pottery etc.) of pyroconductivity and specific heat, the sensible heat type accumulation of heat mechanism that fluent material (water, silicone oil etc.) forms, or the latent heat type accumulation of heat mechanism that carries out accumulation of heat of the latent heat during by phase change, or combination has the accumulation of heat mechanism of other form of sensible heat type accumulation of heat mechanism and latent heat type heat exchange mechanism etc.In addition, also part or all of heat-barrier material can be replaced to the space of vacuum, or vacuumize, in accumulation of heat mechanism, import the thermos bottle structure by the space that will fill heat-barrier material.In addition, also can adopt serial or parallel connection to connect the structure that a plurality of accumulation of heat mechanisms 132 shown in Figure 2 form.
In heat dish 123,124,125, be provided with temperature sensor 112.Similarly, in accumulation of heat mechanism 132, be provided with temperature sensor 114.Controller 110 carries out the control of three-way switch valve 151, first stop valve 152, second stop valve 154 and barrier film (diaphragm) valve 153 according to these temperature sensor 112,114 detected temperature, carries out the temperature control of heat dish.
To in the decompressor 101 of above structure, the program of carrying out the punching press of machined object S is described below.Fig. 3 is the flow chart of punching press handling procedure in the basic example of expression first embodiment of the invention.In addition, in the following description and accompanying drawing, the step that punching press is handled abbreviates " S " as.In addition, Fig. 4 is the time variation diagram of the temperature of expression carry out the punching press of machined object S time heat dish and accumulation of heat mechanism 132.The transverse axis of the chart of Fig. 4 is represented the time (T), and the longitudinal axis is represented temperature (t).Represent the temperature (promptly by temperature sensor 112 detected temperature) of heat dish among Fig. 4 with solid line, and be represented by dotted lines the temperature (promptly by temperature sensor 114 detected temperature) of accumulation of heat mechanism 132.
As shown in Figure 4, at original state (T
1), the temperature of heat dish is normal temperature t
L, the temperature of accumulation of heat mechanism 132 is the forming temperature t near machined object S on the other hand
HTemperature t
1In addition, in original state, the heater H of heat dish 123,124,125 inside is failure to actuate.When this original state begins drop stamping, control circulation (Fig. 3: S101) among each valve represents thermal medium with thick line in Fig. 5 the circulating path Rs that passes through accumulation of heat mechanism 132 (hereinafter referred to as " accumulation of heat path Rs ").Particularly, controller 110 control three-way switch valves make thermal medium flow to the second outlet 151o from inlet 151i
2, close first stop valve 152, and then close diaphragm valve 153 fully.At this moment, thermal medium all circulates with branch's stream 166 via accumulation of heat.As shown in Figure 4, the temperature at original state heat dish is normal temperature t
L, the temperature that flows into the thermal medium of thermal medium circulation stream also is near normal temperature t
LTemperature.After this, because the temperature of accumulation of heat mechanism 132 is more than the high temperature t of normal temperature
1So heat moves to thermal medium from accumulation of heat mechanism 132, thereby the temperature of thermal medium rises.Then because thermal medium heats heat dish 123,124,125, so temperature of each heat dish is also as shown in Figure 4 from t
LRise to t
2On the other hand, the temperature of accumulation of heat mechanism 132, because thermal medium absorbs heat, and from t
1Be reduced to t
2
Then, reach when being suitable on machined object S, applying the temperature of stamping pressure, bottom platform 122 risen at heat dish 123,124,125, and between the heat dish punching press machined object (Fig. 3: S102, S103).
Heat continues when thermal medium moves from accumulation of heat mechanism 132, and the temperature of heat dish 123,124,125 and the temperature of accumulation of heat mechanism 132 are near temperature t
2, and become the state (Fig. 4: T that approaches the poised state that heat moves to thermal medium from accumulation of heat mechanism 132 hardly
2).Controller 110 is according to being arranged at the testing result that heat is coiled 123,124,125 temperature sensor 112 and is arranged at the temperature sensor 114 of accumulation of heat mechanism 132, when the temperature of judgement heat dish and accumulation of heat mechanism becomes near the state of poised state, controller 110 is opened the heater H (Fig. 3: S104, S105) that is built in heat dish 123,124,125, and controls each valve make circulation (Fig. 3: S106) among the circulating path Ro that thermal medium represents with thick line in Fig. 6.Particularly, controller 110 control three-way switch valves make thermal medium export 151o from inlet 151i to first
1Flow, and open second stop valve 154.In addition, this moment, first stop valve 152 and diaphragm valve 153 kept closing state.In this state, because thermal medium is not by absorbing the device of heat energetically from thermal medium, so the thermal medium that is heated by heater H heats the heat dish, as shown in Figure 4, the temperature of heat dish continues to rise.In addition, because thermal medium does not flow into accumulation of heat mechanism 132, so the temperature of accumulation of heat mechanism 132 changes hardly.In addition, controller 110 is in the setting (for example 5 ℃) time in the temperature difference of accumulation of heat mechanism 132 and heat dish for example, or the rate of rise in temperature of heat dish, the temperature of accumulation of heat mechanism 132 underspeed when being lower than the threshold value of regulation, and the temperature that is judged as heat dish and accumulation of heat mechanism forms the state near poised state.
Then, the temperature when the heat dish reaches forming temperature t
HThe time (Fig. 4: T
3), the part that controller 110 will flow into the thermal medium of circulating path Ro branches among Fig. 5 and adjusts path Rt (Fig. 3: S107, S108) with branch's stream 165 by the temperature of cooler 133 via the temperature adjustment with what thick chain-dotted line was represented.Particularly, controller 110 for temperature maintenance of each heat dish at forming temperature t
H,, and, adjust the thermal medium amount that temperature is adjusted path Rt that flows into by adjusting the aperture of diaphragm valve 153 according to temperature by temperature sensor 112 detected heat dishes.
Machined object S is with forming temperature t
HBe heated (Fig. 4: T behind the certain hour
4), controller 110 reduces the temperature of the heat dish 123,124,125 under the punching press machined object S state, the beginning cold stamping.During the beginning cold stamping, controller 110 at first cuts out the heater H (Fig. 3: S110) that is built in heat dish 123,124,125.Secondly, controller 110 switches to accumulation of heat path Rs (Fig. 3: S111) shown in Figure 5 with the path of thermal medium circulation once again.Particularly, controller 110 control three-way switch valves make thermal medium flow to the second outlet 151o from inlet 151i
2, and then close diaphragm valve 153 fully.At this moment, first stop valve 152 is still closed.In addition, this moment, thermal medium all circulated with branch's stream 166 via accumulation of heat.As shown in Figure 4, during the beginning cold stamping, because the temperature of accumulation of heat mechanism 132 is temperature t of specific heat dish
HLow temperature t
2So heat moves to accumulation of heat mechanism 132 from thermal medium, the temperature of thermal medium descends.Then, because the thermal medium of low temperature is with 123,124,125 coolings of heat dish, so the temperature of each heat dish also as shown in Figure 4, from t
HTo t
1Descend.In addition, the temperature of accumulation of heat mechanism 132 is because heated by thermal medium, so from t
2To t
1Rise.
And then heat continues from thermal medium when accumulation of heat mechanism 132 moves, and the temperature of heat dish 123,124,125 and the temperature of accumulation of heat mechanism 132 are near temperature t
1, and become state (Fig. 4: T of the poised state that moves to accumulation of heat mechanism 132 from thermal medium hardly near heat
5).The temperature that controller 110 is judged as the temperature that forms the heat dish and accumulation of heat mechanism is during near the state of poised state, controls circulate among each valve represents thermal medium with thick line in Fig. 7 the cooling path Rc (Fig. 3: S112, S113).Particularly, controller 110 is according to being located at the testing result that heat is coiled 123,124,125 temperature sensor 112 and is located at the temperature sensor 114 of accumulation of heat mechanism 132, the temperature that is judged as the temperature that becomes heat dish and accumulation of heat mechanism is during near the state of poised state, and the control three-way switch valve makes thermal medium flow to first from inlet 151i and exports 151o
1Controller 110 is opened first stop valve 152, and closes second stop valve 154.In addition, this moment, diaphragm valve 153 was still closed.Under this state, because all thermal medium flows to cooler 133 via cooling with branch's stream 162, so thermal medium is cooled off rapidly.In addition, because diaphragm valve 153 closes fully, so the thermal medium of the low temperature of sending by pump unit 131 all is delivered to heat dish 123,124,125, the heat dish is cooled off rapidly.In addition, because thermal medium does not flow into accumulation of heat mechanism 132, so the temperature of accumulation of heat mechanism 132 changes hardly.In addition, controller 110 is in the setting (for example 5 ℃) time in the temperature difference of accumulation of heat mechanism 132 and heat dish for example, or the temperature of heat dish underspeeds, when the rate of rise in temperature of accumulation of heat mechanism 132 is lower than the threshold value of regulation, the temperature that is judged as heat dish and accumulation of heat mechanism forms the state near poised state.
Then, become normal temperature t in the temperature that detects the heat dish
LThe time (Fig. 4: T
6), controller 110 switches to circulating path Ro shown in Figure 6 with the path of thermal medium circulation once again, and the part of thermal medium is branched to temperature adjustment path Rt (Fig. 3: S115).Particularly, controller 110 control three-way switch valves make thermal medium flow to the first outlet 151o from inlet 151i
1, and close first stop valve 152, and open second stop valve 154.Then, adjust the aperture of diaphragm valve 153, temperature of each heat dish is roughly maintained normal temperature t according to the variations in temperature of heat dish
LThen, at normal temperature t
LCarry out (Fig. 4: T after the punching press of certain hour down
7), bottom platform 122 is descended, take out the machined object S (Fig. 3: S116, S117) that cold stamping is finished.
In the basic example of the first embodiment of the invention of above explanation, carry out the control of three-way switch valve 151, first stop valve 152, second stop valve 154 and diaphragm valve 153 according to the temperature of heat dish and accumulation of heat mechanism 132.But, the present invention is defined in said structure, also can constitute according to the temperature of the heat medium temperature in the thermal medium circulation stream (for example temperature of thermal medium circulation stream in the heat dish and the thermal medium in the pump unit 131), carry out the control of above-mentioned each valve 151,152,153,154 with accumulation of heat mechanism 132.
In addition, in the basic example of the invention described above first embodiment, in the temperature maintenance of heat dish at forming temperature t
H(the T among Fig. 4 during this time
3～T
4During this time) do not make thermal medium flow into accumulation of heat mechanism 132.But the present invention is defined in said structure.In two variation of first embodiment of following explanation, when drop stamping, flow into accumulation of heat mechanism 132 by a part that makes thermal medium, can be with 132 heating of accumulation of heat mechanism.In addition, the structure of the decompressor in the following variation one, identical because except being provided with threeway diaphragm valve 151 ' with the basic example of above-mentioned first embodiment with the replacement three-way switch valve 151, therefore omit detailed explanation.
Fig. 8 is in the variation one of expression first embodiment of the invention, with the temperature maintenance of heat dish at forming temperature t
HWith the accompanying drawing of circulating path Ro.As shown in Figure 8, in the decompressor 101 ' of variation one, be provided with threeway diaphragm valve 151 ' to replace three-way switch valve 151.Threeway diaphragm valve 151 ' has: the thermal medium that is connected in interflow block 142 exports the inlet 151i ' of 142o, is connected in the first outlet 151o of first branching portion 161
1' and via accumulation of heat be connected in branch's stream 166 accumulation of heat mechanism 132 second the outlet 151o
2'.Threeway diaphragm valve 151 ' is can adjust from the first outlet 151o
1' the thermal medium flow that flows out with from the second outlet 151o
2' valve of ratio of the thermal medium flow that flows out.In addition, the ratio of above-mentioned flow is by controller 110 controls.
Fig. 9 is the step of punching press processing is implemented in expression by the decompressor 101 ' of variation one a flow chart.In addition, Figure 10 is the heat dish of expression when carrying out the punching press of machined object S and the time variation diagram of the temperature of accumulation of heat mechanism 132.In variation one, the temperature of heat dish reaches forming temperature t
HThe time (Figure 10: T
3'), the part that controller 110 will flow into the thermal medium of circulating path Ro branches among Fig. 8 and adjusts path Rt (Fig. 9: S107, S108 ') via the temperature adjustment with branch's stream 165 and by the temperature of cooler 133 with what thick chain-dotted line was represented.Particularly, controller 110 for temperature maintenance of each heat dish at forming temperature t
H, according to temperature by the detected heat dish of temperature sensor 112, and by adjusting the aperture of diaphragm valve 153, and adjust the thermal medium amount that temperature is adjusted path Rt that flows into.
Further, controller 110 is adjusted the first outlet 151o from threeway diaphragm valve 151 '
1' the thermal medium flow that flows out with from the second outlet 151o
2' ratio of the thermal medium flow that flows out, a part that flows into the thermal medium of circulating path Ro is branched to the accumulation of heat of representing with 2 thick chain-dotted lines among Fig. 8 of passing through adjust path Rt with the accumulation of heat mechanism temperature of branch's stream 166
1, (Fig. 9: S108 ') are heated in accumulation of heat mechanism 132 with the thermal medium of shunting.Thus, in temperature maintenance of each heat dish at forming temperature t
HDuring (Figure 10: T
3'～T
4'), the temperature of accumulation of heat mechanism 132 is from t
2a' gradually to t
2b' rise, at the concluding time of drop stamping T
4', reach than the temperature t in the basic example of first embodiment
2High temperature.Thereby, time T
4The temperature difference of each heat dish and accumulation of heat mechanism 132 diminish, reach poised state rapidly.In addition, the temperature of the accumulation of heat mechanism 132 in the poised state after drop stamping (being the initial temperature of accumulation of heat mechanism 132) t
1' also than the temperature t in the basic example of first embodiment
1High.Thereby, the poised state (time T before the drop stamping in the cycle below
2) in temperature t
2a' also than the temperature t in the basic example of first embodiment
2Height, the temperature of each heat dish is from initial temperature t
1' reach forming temperature t
HTill time (T
3'-T
2') also shorten.Then, because whole shortening of the time that the intensification of hot dish and cooling need is handled the time of cost (from T so implement punching press by decompressor 101 ' in the variation one
1To T
7Till time), implementing punching presses than the decompressor 101 of the basic example by first embodiment, to handle the time that is spent short.Therefore, when adopting the structure of variation one, can be with the more goods of shorter time manufacturing.In addition, because the temperature t under the poised state before the drop stamping
2a' and forming temperature t
HDifference diminish, reduce so be used for the consumed energy that heat dish heats up.In addition, branch to accumulation of heat mechanism temperature and adjust path Rt
1The ratio of thermal medium can preestablish value arbitrarily.
In addition, also can setting-up time T
4' accumulation of heat mechanism 132 reach temperature.Under this situation, with to time T
4' till accumulation of heat mechanism 132 reach the mode of design temperature, control threeway diaphragm valve 151 ' is adjusted to accumulation of heat mechanism temperature automatically and is adjusted path Rt
1The ratio of the thermal medium of shunting.
In addition, thermal medium is adjusted path Rt to accumulation of heat mechanism temperature
1The shunting of (being accumulation of heat mechanism 132), the shunting of adjusting path Rt (being cooler 133) to temperature with thermal medium similarly has the effect that reduces heat medium temperature.Thereby, also thermal medium can be adjusted path Rt to accumulation of heat mechanism temperature
1The adjustment of shunt volume be used in the temperature adjustment of heat dish.Though can't utilize the heat of removing again by the cooling of having used cooler 133, but, because can utilize the heat of removing again, so the energy efficiency height that has utilized the temperature of the heat dish of accumulation of heat mechanism 132 to adjust by the cooling of having used accumulation of heat mechanism 132.
As previously discussed, in variation one, by using threeway diaphragm valve 151 ', can be in the temperature maintenance of heat dish at forming temperature t
HDuring this time with 132 heating of accumulation of heat mechanism.The variation two of the first embodiment of the invention that the following describes is to reach example with variation one same effect by other structure.
Figure 11 be in the variation two of expression first embodiment of the invention with the temperature maintenance of heat dish at forming temperature t
HWith the accompanying drawing of circulating path Ro.As shown in figure 11, the decompressor 101 of variation two " have a structure roughly the same with the decompressor 101 of the basic example of first embodiment; and its difference is in bypass (walking around; the by pass) path 170 that flows into accumulation of heat mechanism 132 in the circuitous three-way switch valve 151 of a part that is provided with the thermal medium that will send from interflow block 142, and is provided with diaphragm valve 155 in this bypass path.Diaphragm valve 155 is the valves that can adjust the thermal medium flow that flows into bypass path 170.In addition, bypass path 170 is connected with the junction of two streams 169 of being located at accumulation of heat mechanism 132 leading portions with the branch point 168 of being located at three-way switch valve 151 leading portions.
Figure 12 is that the decompressor 101 of expression by variation two " implemented the flow chart of the program of punching press processing.In addition, in the punching press of variation two was handled, the temperature of heat dish and accumulation of heat mechanism was also according to chart variation shown in Figure 10.In the variation two, reach forming temperature t in the temperature of heat dish
HThe time (Figure 10: T
3), the part that controller 110 will flow into the thermal medium of circulating path Ro branch to represent with thick chain-dotted line among Figure 11, via the temperature adjustment with branch's stream 165 and adjust path Rt by the temperature of cooler 133 and cool off (Figure 12: S107, S108 ").Particularly, controller 110 for temperature maintenance of each heat dish at forming temperature t
H, according to temperature by the detected heat dish of temperature sensor 112, and by adjusting the aperture of diaphragm valve 153, and adjust the thermal medium amount that temperature is adjusted path Rt that flows into.
And then, controller 110 is adjusted the thermal medium flow that flows into diaphragm valve 155, a part that flows into the thermal medium of circulating path Ro is branched among Figure 11 represent, adjust path Rt by bypass path 170 and accumulation of heat with the accumulation of heat mechanism temperature of the part of branch's stream 166 with 2 thick chain-dotted lines
2, with the thermal medium of shunting with accumulation of heat mechanism 132 heating (Figure 12: S108 ").Branch to accumulation of heat mechanism temperature and adjust path Rt
2The ratio of thermal medium be adjusted to the value of regulation by the control of diaphragm valve 155.In addition, branch to accumulation of heat mechanism temperature and adjust path Rt
2The ratio of thermal medium can preestablish value arbitrarily.
In addition, also can set accumulation of heat mechanism 132 in time T
4' reach temperature.In this case, with to time T
4' till accumulation of heat mechanism 132 reach the mode of design temperature, control diaphragm valve 155 is adjusted to accumulation of heat mechanism temperature automatically and is adjusted path Rt
2The ratio of the thermal medium of shunting.
In addition, also thermal medium can be adjusted path Rt to accumulation of heat mechanism temperature
2The adjustment of shunt volume be used in the temperature adjustment of heat dish.
In the basic example of first embodiment of the invention, by the cartridge heater H that is built in heat dish 123,124,125 thermal medium and heat dish are heated, but the present invention is defined in said structure, also can be with other method with thermal medium and the heating of heat dish.Below Shuo Ming second embodiment of the present invention heats thermal medium by being arranged at the outside external heater system of heat dish.
Figure 13 represents the schematic configuration of the decompressor 102 of second embodiment of the invention.In the decompressor 102 of second embodiment, heater H is not built in the hot thermal medium circulation stream that coils in 123,124,125, and be arranged in the outside thermal medium circulation stream of heat dish, particularly be between first branching portion 161 and the second interflow portion 167, to be provided with external heater system 134.External heater system 134 for example can use the system that is recorded in No. the 2709566th, the Japanese patent gazette.The employed external heater of present embodiment system 134 is built in the tortuous pipeline many cartridge heater H '.Other structure of decompressor 102, since identical with the decompressor 101 (Fig. 1) of the basic example of first embodiment, so omit explanation.
To in the decompressor of second embodiment of said structure, the program of carrying out the punching press of machined object S describes.Figure 14 is the flow chart of the program handled of the punching press of expression second embodiment of the invention.In addition, similarly carry out the temperature adjustment of heat dish in second embodiment according to chart shown in Figure 4 with the basic example of first embodiment.
As shown in Figure 4, at original state (T
1), the temperature of heat dish is normal temperature t
L, the temperature of accumulation of heat mechanism 132 becomes the forming temperature t near machined object S on the other hand
HTemperature t
1In addition, be failure to actuate in original state external heater system 134.When this original state begins drop stamping, control each valve make that thermal medium is represented with thick line in Figure 15, by circulation (Figure 14: S201) among the accumulation of heat path Rs ' of accumulation of heat mechanism 132.Particularly, controller 110 control three-way switch valves make thermal medium flow to the second outlet 151o from inlet 151i
2, and close first stop valve 152, further close diaphragm valve 153 fully.This moment, thermal medium all circulated with branch's stream 166 via accumulation of heat.As shown in Figure 4, the temperature at original state heat dish is normal temperature t
L, and the temperature of the thermal medium of inflow thermal medium circulation stream also is near normal temperature t
LTemperature.Then, because the temperature of accumulation of heat mechanism 132 is more than the high temperature t of normal temperature
1So heat moves to thermal medium from accumulation of heat mechanism 132, thereby the temperature of thermal medium rises.Then, because heat moves from thermal medium thermotropism dish 123,124,125, so the temperature of each heat dish is also as shown in Figure 4 from t
LRise to t
2In addition, the temperature of accumulation of heat mechanism 132 is because of being absorbed heat by thermal medium and reducing.
Then, reach when being suitable on machined object S, applying the temperature of stamping pressure, make bottom platform 122 rise punching press machined object between the heat dish (Figure 14: S202, S203) at heat dish 123,124,125.
Heat continues when thermal medium moves from accumulation of heat mechanism 132, and the temperature of heat dish 123,124,125 and the temperature of accumulation of heat mechanism 132 are near temperature t
2, become state (Fig. 4: T of the poised state that moves to thermal medium from accumulation of heat mechanism 132 hardly near heat
2).Controller 110 is according to being located at the testing result that heat is coiled 123,124,125 temperature sensor 112 and is located at the temperature sensor 114 of accumulation of heat mechanism 132, when the temperature of judgement heat dish and the temperature of accumulation of heat mechanism form near the state of poised state, controller 110 makes external heater system 134 begin heating (Figure 14: S204, S205), and controls each valve is represented thermal medium with thick line in Figure 16 the middle circulation of circulating path Ro ' (Figure 14: S206).Particularly, controller 110 control three-way switch valves make thermal medium export 151o from inlet 151i to first
1Flow, and open second stop valve 154.In addition, this moment, first stop valve 152 and diaphragm valve 153 were still closed.Only passing through circulation among the circulating path Ro ' of external heater system 134 because of thermal medium under this state, so by external heater system 134 heated thermal mediums the heat dish is heated, as shown in Figure 4, hot temperature of coiling continues to rise.In addition, because thermal medium does not flow into accumulation of heat mechanism 132, so the temperature of accumulation of heat mechanism 132 changes hardly.In addition, controller 110 is in the setting (for example 5 ℃) time in the temperature difference of accumulation of heat mechanism 132 and heat dish for example, or the rate of rise in temperature of heat dish, the temperature of accumulation of heat mechanism 132 underspeed when being lower than the threshold value of regulation, and the temperature that is judged as heat dish and accumulation of heat mechanism forms the state near poised state.
Then, the temperature when the heat dish reaches forming temperature t
HThe time (Fig. 4: T
3), the part that controller 110 will flow into the thermal medium of circulating path Ro ' branch to represent with thick chain-dotted line among Figure 16, adjust path Rt ' (Figure 14: S207, S208) via the temperature adjustment with branch's stream 165 and by the temperature of cooler 133.Particularly, controller 110 for temperature maintenance of each heat dish at forming temperature t
H,, adjust the thermal medium amount that temperature is adjusted path Rt ' that flows into thus according to the aperture of adjusting diaphragm valve 153 by the temperature of temperature sensor 112 detected heat dishes.
Machined object S is heated (Fig. 4: T behind the certain hour
4), controller 110 reduces the temperature of the heat dish 123,124,125 under the punching press machined object S state, the beginning cold stamping.During the beginning cold stamping, controller 110 at first stops heating (Figure 14: S210) of external heater system 134.Secondly, controller 110 switches to accumulation of heat path Rs ' (Figure 14: S211) shown in Figure 15 with the path of thermal medium circulation once again.Particularly, controller 110 control three-way switch valves make thermal medium flow to the second outlet 151o from inlet 151i
2, and then close diaphragm valve 153 fully.At this moment, first stop valve 152 is still closed.So as shown in figure 15, thermal medium all circulates with branch's stream 166 via accumulation of heat.As shown in Figure 4, during the beginning cold stamping, because the temperature of accumulation of heat mechanism 132 is temperature t of specific heat dish
HLow temperature t
2So heat moves to accumulation of heat mechanism 132 from thermal medium, the temperature of thermal medium descends.Then, the thermal medium heat of cooling dish 123,124,125 of low temperature is so the temperature of each heat dish also as shown in Figure 4, from t
HTo t
1Descend.In addition, because heated, so the temperature of accumulation of heat mechanism 132 is from t by thermal medium
2To t
1Rise.
And then heat continues from thermal medium when accumulation of heat mechanism 132 moves, and the temperature of heat dish 123,124,125 and the temperature of accumulation of heat mechanism 132 are near temperature t
1, and become state (Fig. 4: T of the poised state that moves to accumulation of heat mechanism 132 from thermal medium hardly near heat
5).When controller 110 is judged as formation near the state of poised state, controls each valve and make circulation (Figure 14: S212, S213) among the cooling path Rc ' that thermal medium represents with thick line in Figure 17.Particularly, controller 110 is according to being located at the testing result that heat is coiled 123,124,125 temperature sensor 112 and is located at the temperature sensor 114 of accumulation of heat mechanism 132, the temperature that is judged as the temperature that becomes heat dish and accumulation of heat mechanism is during near the state of poised state, and the control three-way switch valve makes thermal medium flow to first from inlet 151i and exports 151o
1, further open first stop valve 152, and close second stop valve 154.In addition, this moment, diaphragm valve 153 was still closed.This state is because all thermal medium uses branch's stream 162 also by cooler 133, so thermal medium is cooled off rapidly via cooling.In addition, because diaphragm valve 153 closes fully, so the thermal medium of the low temperature of sending by pump unit 131 all is delivered to heat dish 123,124,125, the heat dish is cooled off rapidly.In addition, because thermal medium does not flow into accumulation of heat mechanism 132, so the temperature of accumulation of heat mechanism 132 changes hardly.In addition, controller 110 is in the setting (for example 5 ℃) time in the temperature difference of accumulation of heat mechanism 132 and heat dish for example, or the temperature of heat dish underspeeds, when the rate of rise in temperature of accumulation of heat mechanism 132 is lower than the threshold value of regulation, the temperature that is judged as the temperature of heat dish and accumulation of heat mechanism becomes the state near poised state.
Then, controller 110 detects hot temperature of coiling becomes normal temperature t
LThe time (Fig. 4: T
6), the path with thermal medium circulation switches to circulating path Ro ' shown in Figure 16 once again, the part of thermal medium is branched to temperature adjust path Rt ' (Figure 14: S215).Particularly, controller 110 control three-way switch valves make thermal medium flow to the first outlet 151o from inlet 151i
1, and close first stop valve 152, and open second stop valve 154.Then, adjust the aperture of diaphragm valve 153, temperature summary of each heat dish is maintained normal temperature t according to the variations in temperature of heat dish
LThen, at normal temperature t
LUnder pass through (Fig. 4: T behind the certain hour
7), bottom platform 122 is descended, take out the machined object S (Figure 14: S216, S217) that cold stamping is finished.
In second embodiment of the present invention, for thermal medium is heated, employing utilizes the external heater system of electrothermal cartridge heater H ', but also can adopt the electrothermal heater that uses other kinds, the external heater system of boiler to substitute cartridge heater.
In addition, with the variation one of first embodiment of the invention and variation two similarly, the part that also can constitute the thermal medium that will flow out from interflow block 142 is delivered to accumulation of heat mechanism 132 and with 132 heating of accumulation of heat mechanism.
It more than is the explanation of embodiments of the present invention.The present invention is not limited to the structure of above-mentioned embodiment, can realize various distortion in the scope that does not break away from main idea of the present invention.For example in the respective embodiments described above, when drop stamping, for temperature maintenance of each heat dish at forming temperature t
H, use cooler 133, but also can use accumulation of heat mechanism 132 to carry out the temperature adjustment.Such processing for example can replace cooling by the structure that employing makes the temperature adjustment collaborate with branch's stream 166 in the upstream and the accumulation of heat of accumulation of heat mechanism 132 with branch's stream 165 and realize with branch's stream 162.
Claims (14)
1. decompressor, it makes the variations in temperature of this heat dish under the state of pressurization machined object between the heat dish, carry out drop stamping and cold stamping continuously, it is characterized in that possessing:
Thermal medium circulating path, its part are to be made of the stream that is formed in the described heat dish, and the thermal medium that is used to adjust the temperature of this heat dish is circulated in wherein;
The pump that thermal medium is circulated in described thermal medium circulating path;
Heating arrangements with described thermal medium heating;
First individual path, it returns this thermal medium circulating path again after described thermal medium circulating path branch;
Accumulation of heat mechanism, it is arranged in described first individual path, and by carrying out heat exchange between the thermal medium of this individual path;
Second individual path, it returns this thermal medium circulating path again after described thermal medium circulating path branch;
Cooling body, it is arranged in described second individual path, and cooling is by the thermal medium of this individual path;
First temperature testing organization, it detects thermal medium or described hot temperature of coiling in the described thermal medium circulating path;
Second temperature testing organization, it detects the temperature of described accumulation of heat mechanism; With
The circulating path controlling organization, it is controlled thermal medium and flows to described first individual path and described second individual path according to by described first temperature testing organization and the detected temperature of described second temperature testing organization;
Described circulating path controlling organization is controlled flowing of this thermal medium as follows: when the described cold stamping of beginning, make described thermal medium flow into described first individual path, make described accumulation of heat mechanism store heat, then in beginning during drop stamping, utilize this thermal medium to flow into this first individual path and the heat that is stored in this accumulation of heat mechanism heats this thermal medium.
2. decompressor as claimed in claim 1 is characterized in that:
Described circulating path controlling organization is controlled flowing of this thermal medium as follows: when reducing the temperature of described thermal medium for described cold stamping, make this thermal medium flow into described first individual path after, make this thermal medium flow into described second individual path.
3. decompressor as claimed in claim 1 or 2 is characterized in that:
Described circulating path controlling organization is controlled flowing of this thermal medium as follows: when the temperature formation of the temperature of thermal medium in being judged as described thermal medium circulating path or described heat dish and described accumulation of heat mechanism approaches the state of poised state, do not make described thermal medium flow into the described first thermal medium individual path.
4. as each described decompressor in the claim 1～3, it is characterized in that:
When described circulating path controlling organization improves the temperature of described thermal medium for described drop stamping, when making described thermal medium flow into described first individual path, do not make described heating arrangements action, when not making this thermal medium flow into this first individual path, make this heating arrangements action.
5. as each described decompressor in the claim 1～4, it is characterized in that:
Described circulating path controlling organization is controlled flowing of this thermal medium as follows: when heat mobile that carries out between described thermal medium and the described accumulation of heat mechanism, make the whole thermal mediums that circulate in described thermal medium circulating path flow into described first individual path.
6. decompressor as claimed in claim 1 or 2 is characterized in that:
The first flow that also possesses the upstream that is arranged at described accumulation of heat mechanism in described first individual path is adjusted valve,
Described circulating path controlling organization is adjusted the aperture of valve by the described first flow of control, adjusts the flow of the thermal medium that flows into described first individual path, and the temperature of described accumulation of heat mechanism is controlled.
7. decompressor as claimed in claim 6 is characterized in that:
Described circulating path controlling organization is controlled the aperture that described first flow is adjusted valve as follows: during the temperature of described heat dish is maintained at forming temperature, make the part of thermal medium flow into described first individual path.
8. as each described decompressor in the claim 1～7, it is characterized in that also possessing:
From the described thermal medium circulating path branch of the upstream side of described heat dish and towards the 3rd individual path of described cooling body; With
Be arranged at second flow rate regulating valve of described the 3rd individual path,
Described circulating path controlling organization is adjusted the flow of walking around described heat dish and flowing to the thermal medium of described cooling body by the aperture of described second flow rate regulating valve of control.
9. decompressor as claimed in claim 8 is characterized in that:
Described circulating path controlling organization is when described drop stamping, so that the temperature of described heat dish is maintained at the aperture that the mode of the forming temperature of described machined object is controlled described second flow rate regulating valve; When described cold stamping, so that the temperature of described heat dish is maintained at the aperture that the mode of normal temperature is controlled described second flow rate regulating valve.
10. decompressor as claimed in claim 9 is characterized in that:
Described circulating path controlling organization is when described drop stamping, and the temperature of thermal medium in described thermal medium circulating path or described heat dish is closed described flow rate regulating valve before reaching the forming temperature of described machined object fully; When described cold stamping, the temperature of thermal medium in described thermal medium circulating path or described heat dish is closed described flow rate regulating valve before reaching normal temperature fully.
11., it is characterized in that as each described decompressor in the claim 1～10:
Described heating arrangements is the heater that is built in the described heat dish.
12., it is characterized in that as each described decompressor in the claim 1～11:
Described heating arrangements is the external heater that can heat described thermal medium in the outside of described heat dish.
13., it is characterized in that as each described decompressor in the claim 1～12:
Described accumulation of heat mechanism has by at least one the formed heat accumulation plate of material that comprises in copper, aluminium, the iron.
14. decompressor as claimed in claim 13 is characterized in that:
Described heat accumulation plate is covered by heat-barrier material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008220792 | 2008-08-29 | ||
| JP2008-220792 | 2008-08-29 | ||
| PCT/JP2009/064732 WO2010024220A1 (en) | 2008-08-29 | 2009-08-24 | Press apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102137752A true CN102137752A (en) | 2011-07-27 |
Family
ID=41721388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801339208A Pending CN102137752A (en) | 2008-08-29 | 2009-08-24 | Press apparatus |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5171957B2 (en) |
| CN (1) | CN102137752A (en) |
| TW (1) | TWI422483B (en) |
| WO (1) | WO2010024220A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090173A (en) * | 2014-05-08 | 2015-11-25 | 佛山市恒力泰机械有限公司 | Displacement-sensor-free pressurizing method of dual-acting oil cylinder |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI574008B (en) * | 2011-10-25 | 2017-03-11 | 國際計測器股份有限公司 | Testing machine |
| PL2762300T3 (en) * | 2013-02-01 | 2016-11-30 | Wood material panel hot press plant and method for operating such a plant | |
| JP7388993B2 (en) | 2020-08-06 | 2023-11-29 | 三菱重工業株式会社 | How to start a gas turbine |
| WO2023194887A1 (en) * | 2022-04-06 | 2023-10-12 | Dario Toncelli | Catalysis oven and method for controlling the operation of a catalysis oven |
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| JP2571139B2 (en) * | 1989-12-26 | 1997-01-16 | 株式会社名機製作所 | Hot plate temperature control device in hot press |
| JP2002153999A (en) * | 2000-11-16 | 2002-05-28 | Kitagawa Elaborate Mach Co Ltd | Press device |
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| CN1785644A (en) * | 2004-12-07 | 2006-06-14 | 株式会社技术高 | Metal mould heating and cooling system and its method for heat pressing |
| CN101146671A (en) * | 2005-03-25 | 2008-03-19 | 北川精机株式会社 | Press apparatus |
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| JPS60127135A (en) * | 1983-12-14 | 1985-07-06 | Hitachi Ltd | Hot press |
| JPH01165412A (en) * | 1987-12-22 | 1989-06-29 | Meiki Co Ltd | Apparatus for cooling hot plate in hot press apparatus |
| JP4410146B2 (en) * | 2005-05-06 | 2010-02-03 | 株式会社名機製作所 | Temperature control method for hot press equipment |
| JP4827640B2 (en) * | 2006-07-12 | 2011-11-30 | コマツ産機株式会社 | Press forming apparatus and method |
-
2009
- 2009-08-24 JP JP2010526697A patent/JP5171957B2/en active Active
- 2009-08-24 WO PCT/JP2009/064732 patent/WO2010024220A1/en active Application Filing
- 2009-08-24 CN CN2009801339208A patent/CN102137752A/en active Pending
- 2009-08-26 TW TW98128727A patent/TWI422483B/en not_active IP Right Cessation
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63302011A (en) * | 1987-06-02 | 1988-12-08 | Meiki Co Ltd | Heating plate temperature control device for hot press |
| JP2571139B2 (en) * | 1989-12-26 | 1997-01-16 | 株式会社名機製作所 | Hot plate temperature control device in hot press |
| JP2002153999A (en) * | 2000-11-16 | 2002-05-28 | Kitagawa Elaborate Mach Co Ltd | Press device |
| CN1365881A (en) * | 2000-11-16 | 2002-08-28 | 北川精机株式会社 | Pressurizing device, control method of pressurizing device and hot plate of pressurizing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090173A (en) * | 2014-05-08 | 2015-11-25 | 佛山市恒力泰机械有限公司 | Displacement-sensor-free pressurizing method of dual-acting oil cylinder |
| CN105090173B (en) * | 2014-05-08 | 2017-03-15 | 佛山市恒力泰机械有限公司 | A kind of pressure method of two-way cylinder without gap sensors |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI422483B (en) | 2014-01-11 |
| TW201008766A (en) | 2010-03-01 |
| JP5171957B2 (en) | 2013-03-27 |
| JPWO2010024220A1 (en) | 2012-01-26 |
| WO2010024220A1 (en) | 2010-03-04 |
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Application publication date: 20110727 |