CN1683152A

CN1683152A - Press machine and press machine system

Info

Publication number: CN1683152A
Application number: CNA2005100598514A
Authority: CN
Inventors: 冈崎静明
Original assignee: KITAGAWASEIKI CO Ltd
Current assignee: KITAGAWASEIKI CO Ltd
Priority date: 2004-04-16
Filing date: 2005-03-31
Publication date: 2005-10-19
Anticipated expiration: 2025-03-31
Also published as: JP4309795B2; KR101164425B1; TWI376306B; TW200606012A; JP2005305464A; KR20060047161A; CN100445085C

Abstract

The press apparatus comprises a hot plate distance holding means for fixing one of a pair of the hot plates in the state departed from the other hot plate at a required distance, a metallic plate fixed to at least one of the hot plates so as to cover the workpiece side of at least one of a pair of the hot plates, a heating medium filled into the clearance between at least one of the hot plates and the metallic plate, a temperature control means for controlling the temperature of the hot plates, and a heating medium pressure regulating means for applying a pressing pressure to the workpiece arranged between a pair of the hot plates by adjusting the pressure of the heating medium when the distance between a pair of the hot plates is kept to be the required distance by means of the hot plate distance holding means. Thus,the invention provides a press apparatus which is less liable to cause faults such as deterioration of the accuracy in the thickness of a product, even when large hot plates are used, and also does not lengthen the forming time.

Description

Forcing press and press machine system

Technical field

The present invention relates to the forcing press that the sheet material that is formed by resin material formed by the tight mode of hot pressing.

Background technology

In the past, in order to make such as plastic IC-card (integrated circuit card), printed circuit board (PCB) (PWB) etc. adopt the forcing press that plastic workpiece is formed.Such forcing press is between two heat dishes, and folder is established the workpiece based on resin, and these two heat dishes are pushed (the tight step of hot pressing) to it when workpiece is heated, thus, form goods.

Adopting such forcing press, to such as, forming thickness is in the occasion of the printed circuit board (PCB) below 100 microns, if the flatness precision with the heat dish is not suppressed in 10 microns, produce then that the pressure act on the goods is followed the position on the heat dish and different phenomenons reduces the precision on thickness direction of printed circuit board (PCB), and follow the position of carrying out pressurized, the press pressure deficiency, the possibility of generation rough sledding.

In addition, in recent years,, has the forcing press that large-scale heat is coiled so can adopt owing to can make a plurality of drip moldings by pushing once.Because the area of heat dish is big more, be difficult to guarantee the flatness precision of heat dish more, so be not easy to the shaping of goods.

For fear of such phenomenon, in the past, as the described forcing press of the flat 11-197895 document of TOHKEMY, even with less in the surface roughness of sheet rubber etc., one side has under the situation of micro-strain, still the material that hardly surface accuracy of another side is impacted is held on it between workpiece and the heat dish as padded coaming.But,, be difficult to pass to workpiece, the problem that curring time prolongs so have the heat of heat dish because the pyroconductivity of the pyroconductivity specific heat dish of padded coaming is extremely low.In addition, with the occasion of sheet rubber,,, when the higher material of forming temperature being formed, can't use with degree of precision adopting large-scale heat dish because forming temperature is limited to 150 ℃ as padded coaming.

Summary of the invention

The present invention be directed to the problems referred to above proposes, the object of the present invention is to provide forcing press and press machine system, wherein, even under the situation that adopts large-scale heat dish, the precision that can be suppressed on the thickness direction of goods reduces, and does not prolong the forcing press and the press machine system of curring time.

In order to address the above problem, forcing press of the present invention comprises a pair of heat dish; Heat dish is maintaining body at interval, and this heat dish maintaining body at interval makes in the above-mentioned a pair of heat dish one fix with the isolated state of prescribed distance with another; Metallic plate, this metallic plate are fixed at least one heat dish according to the mode of the face that covers workpiece side; Heat transfer medium, this heat transfer medium are filled in the clearance portion of above-mentioned at least one heat dish and metallic plate; Temperature control device, the temperature of the above-mentioned heat dish of this temperature control device control; The heat transfer medium pressure adjustmenting mechanism, this heat transfer medium pressure adjustmenting mechanism is coiling maintaining body at interval by above-mentioned heat, when spacing keeps the spacing of above-mentioned a pair of heat dish according to the rules, adjust the pressure of above-mentioned heat transfer medium, the workpiece that is arranged between the above-mentioned a pair of heat dish is applied thrust.

So, according to forcing press of the present invention,, adjust the pressure of heat transfer medium by the heat transfer medium pressure adjustmenting mechanism, at the state that is installed on a metallic plate maintenance flat shape on the heat dish, aim at another heat dish, it is pushed.In this occasion, because the flatness precision of metallic plate only depends on its surface roughness,, the surface roughness of metallic plate is suppressed at than low degree by processing such as mirror finish, thus, can keep workpiece is carried out the flatness precision of the metallic plate of hot pressing when tight than the highland.

In addition, also can on above-mentioned at least one heat dish vacuum seal be installed, this vacuum seal seals the gap of above-mentioned a pair of heat dish when this workpiece is pushed, and outside relatively gas seals the space of the periphery of this workpiece.In addition, also can comprise vavuum pump, this vavuum pump reduces the air pressure in the space of this workpiece periphery when this workpiece is pushed.

If such formation, the occasion that need push under decompression state is because decompression only be space between a pair of heat dish, so can in the short period workpiece pressure on every side be reduced to required air pressure.

In addition, press machine system of the present invention comprises first forcing press that workpiece is heated with set point of temperature; Second forcing press, it is tight that this second forcing press carries out hot pressing to the workpiece by above-mentioned first forcing press heating; Belt conveyer, this belt conveyer is positioned over above-mentioned workpiece on metal being with, and it from first forcing press, is sent on second forcing press, this system is according to passing through above-mentioned first and second forcing presses, and the mode of this workpiece being pushed together with band constitutes.

According to such press machine system, because together with metal band, workpiece is pushed, so do not need mechanism that workpiece conveyer relative pressure machine is lived in retirement, can shorten the time of pushing more.In addition, because workpiece is positioned on higher metal being with of heat conductivity, the heat that comes the self-heating dish is transferred on the workpiece apace by band.

According to the present invention,, do not produce the forcing press and the press machine system of rough sledding such as precision reduction of the thickness direction of goods even realize under the situation that adopts large-scale heat dish, still need not prolonging curring time.

Description of drawings

Fig. 1 is the side view of the intermittent pressure machine system of embodiments of the invention;

Fig. 2 is the schematic diagram of the structure of expression heated press of the present invention;

Fig. 3 is for representing the oil pressure element of embodiments of the invention and the figure of oil cylinder portion 230 in a schematic way;

The cutaway view that Fig. 4 cuts the bottom heat dish of the hot dish in bottom of the present invention portion open for along continuous straight runs;

Fig. 5 is the vertical direction cutaway view of the metal buffer spare 280 of embodiments of the invention;

Fig. 6 represents the block diagram of structure of the push-button controller of embodiments of the invention for illustration.

The specific embodiment

Specifically describe at structure below as the forcing press of embodiments of the invention.Fig. 1 is the side view of the intermittent pressure machine system 1 of embodiments of the invention.This intermittent pressure machine system 1 comprises preheating pressure machine 100, and heated press 200 is with cooling pressure machine 300.The goods P (being IC-card in the present embodiment) that is formed by resin, metal, semiconductor etc. passes through belt conveyer 400 left side from figure, transmits to the right, by preheating pressure machine 100, heated press 200, cooling pressure machine 300 is exerted pressure successively, forms to have required form, the goods P of rerum natura.Promptly, the temperature of goods P rises to set point of temperature by preheating pressure machine 100, follows, and heats by heated press 200 to compress, then be cooled to normal temperature, push the mode that contacts with fixed disk by the movable disk that makes the top that is arranged at fixed disk and carry out by cooling pressure machine 300.

Belt conveyer 400 comprises a pair roller 401L, the 401R of the upstream and downstream that is arranged at three forcing presses 100～300, and the steel band 403 of the circulation of cross-over connection on this roller.This roller 401L drives along the rotation of the clockwise direction among Fig. 1 by motor 409, and steel band 403 is followed the rotation of this roller and driven.

As shown in Figure 1, the top of steel band 403 is arranged between the movable disk portion 110,210,310 and fixed disk portion 120,220,320 of each forcing press 100～300.In addition, on belt conveyer 400, be provided with that the top that makes steel band 403 is lifted and the band of the usefulness that descends come-up device 405,407.This band come-up device 405,407 in the following manner, the position of the vertical direction on the top of change steel band 403, this mode is: but steel band 403 get the top of steel band 403 and be positioned over pressed state (the solid line portion among Fig. 1) in the fixed disk portion 120,220,320, but any state in the shipping situation (dotted line part among Fig. 1) that the top relative fixed dish portion 120,220,320 of steel band 403 floats slightly.

As shown in Figure 1, band come-up device 405 is arranged at the upstream side of preheating pressure machine 100, and in addition, band come-up device 407 is arranged at the downstream of cooling pressure machine 300.Band come-up device 405 comprises can be around the bar 405L of axle 405S swing, with the roller 405R of the front end that is installed on bar 405L.This roller 405R contacts from the top of below with steel band 403.In addition, roller 405R follows the driving of steel band 403 and freely rotates, and does not hinder the driving of steel band 403.

Bar 405L is by not shown driving mechanism (gas and oil cylinder, solenoid etc.) drive, first state (the solid line portion among Fig. 1) of the position that the top of getting roller 405R substantially equates substantially with the end face of fixed disk portion 120,220,320 is arranged in any state of second state (dotted line part of Fig. 1) of the position of the end face that is higher than fixed disk portion 120,220,320 with the top of roller 405R.

Also comprise

bar

407L, 407S and the roller 407R that has with last float means 405 identical functions with last float means 407.

That is, when float means 405 and 407 is got first state on tape, but steel band 403 is in pressed state, and when float means 405 and 407 is got second state on tape, but steel band 403 is in shipping situation.

On the top of steel band 403, place goods P.With goods P when the movable disk portion 110,210,310 of each forcing press 100～300 and between the fixed disk portion 120,220,320 any one are transported, according to the mode that is in second state with

last float means

405 and 407, float means on the rotating band, but make steel band 403 be in shipping situation.At this state, CD-ROM drive motor 409 between the movable disk portion and fixed disk portion of required forcing press, transports goods P.At this state, owing to steel band 403 does not contact with each forcing press 100～300, thus prevent because of this contact, steel band 403 breakages, or, hinder the situation of transporting of goods P because of acting on the frictional resistance between each forcing press 100～300 and the steel band 403.

After goods P is transported to the desired position, drive according to the mode that is in first state with last float means 405 and 407, make steel band 403 be in the state that can push.If steel band 403 is in the state that can push, because this steel band 403 is positioned in the fixed disk portion, so can be between movable disk portion and fixed disk portion, P pushes to goods.

In addition, movable disk portion the 110,210, the 310th connects, and they side by side rise/descend.In addition, the interval of the interval of preheating pressure machine 100 and heated press 200 and heated press 200 and cooling pressure machine 300 equates (below this distance being called L).So, can be by cooling pressure machine 300, to certain goods cool off during, to another goods carry out preheating and/or hot pressing tight, so-called series connection is pushed.

With reference to Fig. 2, the structure of heated press 200 is described.In addition, preheating pressure machine 100 has identical structure respectively with heated press 200.

Fig. 2 is the appearance shape figure of the structure of expression heated press 200.In Fig. 2, provide the cutaway view (with reference to Fig. 1) of the A-A line of heated press 200, the block diagram of the various devices that adopted when carrying out exercises with heated press 200.This heated press 200 comprises pushes support 203, as the hot dish in the top of movable disk portion portion 210, and as the hot dish in the bottom of fixed disk portion portion 220, with oil cylinder portion 230.This is pushed support 203 and is supported on forcing press rigidly and is provided with on the bottom of portion.The fixed disk 221 of this bottom hot dish portion 220 is fixed on the bottom 203b that pushes support 203.In addition, oil cylinder portion 230 is fixed on the bottom surface of the top 203a that pushes support 203.

This oil cylinder portion 230 comprises cylinder body 231, and when sliding with the inwall of cylinder body 231, piston 232 moving up and down with the bottom surface pars intermedia from piston 232, extends and the bar 233 that forms vertically downward.The place offers through hole 231a in the middle of the bottom surface of this cylinder body 231, and this bar 233 is followed moving up and down of piston 232, and this through hole 231a and sliding moves up and down simultaneously relatively.In the bottom of this bar 233, be fixed with the movable disk 211 of top hot dish portion 210.

The hollow bulb 234 of cylinder body 231 is by piston 232, be divided into hollow bulb (on) 234a and hollow bulb (descending) 234b.This hollow bulb (on) among 234a and hollow bulb (descending) 234b, be full of hydraulic oil respectively.The action of piston 232 (that is, the hot dish in top portion 210 moves up and down) is undertaken by the mode of oil pressure element 260 control hydraulic oil.

Structure to oil pressure element 260 is described below.Fig. 3 represents oil pressure element 260 and oil cylinder body 230 in a schematic way.As shown in Figure 3, the hollow bulb of oil cylinder 231 (on) 234a is connected with pipe 262, in addition, hollow bulb (descending) 234b with manage 263 and be connected.Pipe 262 all is connected with direction transfer valve SV3 with 263 the other end.In addition, on direction transfer valve SV3, connect pipe 261 and the open pipe 264c of an end that an end is connected with pump 266.Direction transfer valve SV3, switches with " tube connector 261 and 263, and the state of tube connector 262 and 264c " " tube connector 261 and 262, and the state of tube connector 263 and 264c " corresponding to the operation from the outside.

Pump 266 will be inhaled on the hydraulic oil from fuel tank 265, and it is sent to pipe 261.Get at direction transfer valve SV3 " tube connector 261 and 262; and the state of tube connector 263 and 264c " occasion, pump 266 with hydraulic oil be sent to cylinder body 231 hollow bulb (on) 234a, on the other hand, the hydraulic oil of hollow bulb (descending) 234b is discharged by pipe 264a and guiding check-valves RV3.In addition, the output mechanism about the hydraulic oil of hollow bulb (descending) 234b will be explained hereinafter.

In addition, get at this direction transfer valve SV3 " tube connector 261 and 263; and the state of tube connector 262 and 264c " occasion, pump 266 is sent to hydraulic oil hollow bulb (descending) 234b of cylinder body 231, on the other hand, hollow bulb (on) hydraulic oil of 234a discharges by pipe 264b and guiding check-valves RV2.In addition, about hollow bulb (on) output mechanism of the hydraulic oil of 234a, will be explained hereinafter.

Pipe 262 and manage 263 near direction transfer valve SV3, be respectively arranged with check-valves TV1 and TV2.The direction that flows of the hydraulic oil that this check-valves TV1 and TV2 will flow in pipe 262 and pipe 263 is limited only within from direction transfer valve SV3, towards the direction of cylinder body 231, prevents the adverse current of hydraulic oil.So in principle, hydraulic oil flows to pipe 264c not from direction transfer valve SV3.

In addition, on pipe 262 and pipe 263, according to the mode that forms branch road pipe 264b and 264a are set respectively.On pipe 264b and 264a, connect guiding check-valves RV2 and RV3 respectively.The hydraulic oil by it is discharged in RV2 and RV3 action when oil cylinder rises and descend respectively, makes cylinder action.That is, pump 266 with hydraulic oil send into cylinder body 231 hollow bulb (on) 234a, if manage 262 in press and rise and more than setting, then guide check-valves RV3 to open, discharge the hydraulic oil of hollow bulb (descend) 234b, cylinder body decline.Equally,, press in the pipe 263 and rise and more than setting, then guide check-valves RV2 to open, discharge the hydraulic oil of hollow bulb (descend) 234b, the cylinder body rising if pump 266 is sent hydraulic oil into hollow bulb (descending) 234b of cylinder body 231.

As above-mentioned, if in the present embodiment, hydraulic oil is sent to a hollow bulb in the cylinder body 231, then the hydraulic oil in another hollow bulb is discharged from this hollow bulb.So, according to present embodiment, pump 266 and direction transfer valve SV3 are controlled, thus, piston 232 and movable disk 211 are moved up and down.

Below with reference to Fig. 2, the structure of hot dish portion of the hot dish in top portion 210 and bottom 220 is described.Top heat dish 213 in this top hot dish portion 210 is fixed from the mode that suspend in midair the bottom surface of being fixed in movable disk 211 with by heat-barrier material 212.Equally, the bottom heat dish 223 in the hot dish in the bottom portion 220 is fixed on the end face of fixed disk 221 by heat-barrier material 222.In addition, on the end face of the bottom heat dish 223 in the hot dish in bottom portion 220, fixing metal bolster 280 (will be explained hereinafter).In addition, on the bottom surface of the top of the hot dish in top portion 210 heat dish 213, be fixed with vacuum seal installing plate 214.This vacuum seal installing plate 214 is the higher metallic plate of heat conductivity, and the heat of top heat dish 213 moves in vacuum seal installing plate 214 apace.That is, vacuum seal installing plate 214 has the function as the heat dish baffle that prevents the contact between goods P and the top heat dish 213.

Drive oil pressure element 260, drive top hot dish portion 210 downwards, thus, the goods P that is positioned on the steel band 403 can be held between the vacuum seal installing plate 214 of the hot dish of metal buffer spare 280 and top portion 210, it is pushed.In addition, distance bar 270 is from the end (two ends, the left and right sides Fig. 2) of the end face of bottom heat dish 223, elongation vertically upward.If top heat dish 213 is descended, then the top of distance bar 270 contacts with the bottom surface of top heat dish 213, and the hot dish in top can't further descend.So the spacing between distance bar 270 dish of heat up and down as will push the time keeps certain, and the bottom surface of vacuum seal installing plate 214 is kept a kind of guide of level.

In addition, during goods P was pushed, the bottom heat dish 223 of the top of the hot dish in top portion 210 heat dish 213 and the hot dish in bottom portion 220 was heated to the forming temperature of goods P respectively by heating system 240.In addition, adjust the method for temperature that heat is coiled, will be explained hereinafter about heating system 240.By like this, when goods P is heated, it to be pushed, the tight step of so-called hot pressing is carried out the shaping of goods P.In addition, comprise the occasion of thermoplastic resin, after step is pushed in the heating of this heated press 200, carry out cooling pressurization steps described later, thus, carry out the shaping of goods P at goods P.

With reference to Fig. 2 the structure of heating system 240 is described.This heating system 240 comprises pump 241, and this pump 241 makes the heating heat transfer medium pipeline inner loop of heat transfer medium oil in the inside that is formed at top heat dish 213 and bottom heat dish 223; The heating component 242 that this heat transfer medium oil is heated.In addition, pump 241, top heat dish 213 and bottom heat dish 223, heating component 242 with heat transfer medium pipe 244, forms the heat transfer medium path by heating.

This pump 241 is sent heat transfer medium into the heat transfer medium inlet of heating with the heat transfer medium pipeline.By this heat transfer medium, adjust the temperature of top heat dish 213 and bottom heat dish 223.The heat transfer mediums oil that hot dish 213 and bottom heat dish 223 are sent from the top passes through heating with heat transfer medium pipe 244, flows to heating component 242.

This heating component 242 is to pass through heater, the device that the heat transfer medium oil by it is heated.By the control of thyristor, the temperature of heater is controlled, thus, can control the temperature of heat transfer medium oil.

In addition, the heat transfer medium oil of sending from heating component 242 passes through filter screen, sends into pump 241, flows to top heat dish 213 and bottom heat dish 223 once more.

Fig. 4 is bottom heat dish 223 cutaway views cut of along continuous straight runs with the hot dish in bottom portion 220.

Bottom heat dish 223 is for being foursquare steel plate substantially.In bottom heat dish 223, (order according to the hole in the left side from Fig. 4 is called 2231a, 2231b to be formed with first hole 2231a～h of eight through holes that are parallel to each other of offering along the above-below direction among Fig. 4,2231c, 2231d, 2231e, 2231f, 2231g, 2231h); Bottom in Fig. 4 of bottom heat dish 223, according to the whole perpendicular mode of first hole 2231a～h, along second hole 2232 that the left and right directions among Fig. 4 is offered; According to the top ends left side from Fig. 4 of bottom heat dish 223, with the perpendicular mode of first hole 2231a～f, along the 3rd hole 2233 that the left and right directions among Fig. 4 is offered; According to from the top ends right side among Fig. 4 of bottom heat dish 223, with the first hole 2231g and the perpendicular mode of 2231h, along the 4th hole 2234 that the left and right directions among Fig. 4 is offered.At the two ends of first hole 2231b～g, embedding respectively has blind lid 2236.At first hole 2231a and the 2231h, only the top ends in this Fig. 4 embeds blind lid 2236.In addition, two ends in second hole 2232 respectively, the part between the first hole 2231a and the 2231b, and first the part between hole 2231c and the 2231d, part between the first hole 2231e and the 2231f, and the part between the first hole 2231g and the 2231h embed blind lid 2236.In addition, the left end in the 3rd hole 2233 respectively, the part between the first hole 2231b and the 2231c, and the part between the first hole 2231d and the 2231e embed blind lid 2236.In addition, the right-hand member in the 4th hole 2234 embeds blind lid 2236.At first hole 2231a～h, second hole 2232, in the respective aperture in the 3rd hole 2233 and the 4th hole 2234, as above-mentioned, embed blind lid 2236, thus, first hole 2231a～h, 2232, the three holes 2233, second hole and the 4th hole 2234 are two ends with the bottom among Fig. 3 of the bottom among Fig. 4 of the first hole 2231a 2238 and the first hole 2231h 2239, as a heating heat transfer medium pipeline that extends in the inside complications of bottom heat dish 223.

Use in the heat transfer medium pipeline in this heating,,, bottom heat is coiled 223 heat by this heat transfer medium oil by the heat transfer medium oil circulation of heating system 240 (Fig. 2) heating.In addition, in this bottom heat dish 223, not shown temperature sensor is installed.This temperature sensor is connected with not shown controller in the heated press 200, when 200 couples of goods P of this heated press heat, temperature according to the top heat dish of measuring by this temperature sensor 213 is as the mode about 300 degree of heating forming temperature, controller is controlled heating system 240, adjusts the temperature of the heat transfer medium oil that flows through above-mentioned pipeline.

In addition, in the present embodiment, make and carried out temperature controlled heat transfer medium oil and coil inner loop, thus, adjust temperature of heat plate in heat, still, also can be according to by imbedding the heater in the heat dish, the mode that the heat dish is heated constitutes.

Fig. 5 is the vertical direction cutaway view of metal buffer spare 280.As shown in Figure 5, this metal buffer spare 280 is included in the end face pars intermedia, forms the plate member 281 of the slab shape of recess 281H, with the metallic plate 282 of the stainless steel that covers this recess 281H.Under situation very close to each other, full week ground with the end welding of plate member 281 and metallic plate 282, thus,, form metal buffer spare 280 according to forming the mode of one with plate member 281 and metallic plate 282.

In the bottom surface of plate member 281, form a plurality of screwed hole 281B that offer vertically upward (in Fig. 5, only illustrating).In each hole of this screwed hole 281B, cut out chimeric screw thread, the bolt 283 that passes the through hole 2237 on the side that vertically is opened in bottom heat dish 223 is screwed togather with this screw thread, thus, metal buffer spare 280 is anchored on the bottom heat dish 223.

Between the recess 281H and metallic plate 282 of board 281, form clearance portion 284.This clearance portion 284 is communicated with heat transfer medium path 285 with pressurization.This pressurization is connected with loading controls 250 with the other end of heat transfer medium path 285.In addition, be filled with heat transfer medium oil in clearance portion 284 with in pressurizeing with heat transfer medium path 285.In a single day be filled in clearance portion 284 and pressurization with the oily heat that absorbs board 281 of the heat transfer medium in the heat transfer medium path 285, then this heat discharged to metallic plate 282.Because between metallic plate 282 and board 281 is to have mobile heat transfer medium oil, so apace metallic plate 282 is heated.Loading controls 250 is connected with the not shown controller in the forcing press 200 with heating, and this controller can be controlled loading controls 250, changes to be filled in clearance portion 284 and the pressure of pressurization with the heat transfer medium oil in the heat transfer medium path 285.Concrete structure about loading controls 250 will be explained hereinafter.

End face to metallic plate 282 carries out minute surface fine finishining, and its surface roughness is in several microns scope.So if keep press pressure and be filled in clearance portion 284 and the pressurization balance with the pressure of the heat transfer medium oil in the heat transfer medium path 285, metallic plate 282 is kept flat state, then the flatness precision of the bottom surface of metallic plate 282 is kept 10 microns in.

In addition, minute surface fine finishining is carried out in the top and bottom of steel band 403 (Fig. 1), its surface roughness is in several microns scope.In addition, on goods P, place the thin plate B of stainless steel.Also this thin plate B is carried out minute surface fine finishining here.Because the distortion of the end face of bottom heat dish 223 absorbs by metal buffer spare 280, so if make bottom hot dish portion 220 near the hot dish in top portion, then steel band 403 is with degree of precision, the state on maintenance plane is held on goods P between itself and the thin plate B.In addition, in top heat dish 213, form with bottom heat and coil 223 the identical pressurization heat transfer medium pipeline of pipeline, apace this top heat dish 213 is heated.

On the circumference of the bottom surface of vacuum seal installing plate 214, by the fastening vacuum seal 219 of engage thread.This vacuum seal 219 centers on the full week of vacuum seal installing plate 214 and is provided with, if make this vacuum seal installing plate 214 near metal buffer spare 280, then the gap between vacuum seal installing plate 214 and the metal buffer spare 280 seals by this vacuum seal 219.In the bottom surface of this vacuum seal installing plate 214, be formed with the opening 214a (Fig. 2) that is communicated with vavuum pump 290.So, if the gap between this vacuum seal installing plate 214 and metal buffer spare 280 during by 219 sealings of this vacuum seal, drives vavuum pump 290, then can reduce goods P around pressure.

The structure of cooling pressure machine 300 is basic identical with heated press 200, and still, the heat transfer medium that flows through the heat dish adopts cooling water, by making its circulation, the heat dish is cooled off.

Below with reference to Fig. 6, the structure of loading controls 250 is described.Fig. 6 is for representing the block diagram of the structure of loading controls 250 in a schematic way.Heating controller 250 comprises first oil hydraulic cylinder, 251, the second oil hydraulic cylinders 252, to the pump 259a of second oil hydraulic cylinder, 252 supply hydraulic oil, to the fuel tank 259b of pump 259a supply hydraulic oil, with direction transfer valve SV5.

First oil hydraulic cylinder 251 comprises sleeve 251a, piston 251b and bar 251c.Piston 251b is for slidably being installed on the parts of the inner face of sleeve 251a.Bar 251c is according to the one side from piston 251b, along sleeve 251a axially (that is, and the direction of action of piston 251b, among Fig. 6 to right) mode of extending fixes, its end 251d is outstanding from sleeve 251a.By piston 251b, the inner space of sleeve 251a is divided into front space 251e (left side among Fig. 6) and back space 251f (right side among Fig. 6).

Fill heat transfer medium oil in the front space 251e of first oil hydraulic cylinder 251, this front space 251e is connected by managing 254 with heat transfer medium path 285 with pressurization in being formed at metal buffer spare 280.In addition, the back space 251f of first oil hydraulic cylinder 251 is in atmospheric state.So by power F, towards front space 251e, 251c is pressed into bar, thus, the pressure P 1 of the heat transfer medium oil in the front space 251e is F/A1 (A1: the sectional area of piston 251b).So,, can control the pressure that is filled in the heat transfer medium oil between metallic plate 282 and the board 281 by power F is controlled.

Like this, the heat transfer medium oil that is used for that metallic plate 282 is pressurizeed only is filled in between metallic plate 282 and the board 281, in the pipeline in the front space 251e of first oil hydraulic cylinder 251.So even under the situation of metallic plate 282 breakages, the heat transfer medium oil of outflow is still a spot of.In addition, in the occasion of the living thermal expansion of heat transfer medium fry dried food ingredients, piston 251b moves according to the bulking value of back space 251f expansion, thus, can keep the pressure of heat transfer medium oil under the situation that does not adopt overflow valve.

On the other hand, second oil hydraulic cylinder 252 comprises the sleeve 252a that is filled with heat transfer medium oil, piston 252b, and bar 252c, the limiting sensor 252g that advances and retreats limiting sensor 252h.Piston 252b is for slidably being installed on the parts of the inner face of sleeve 252a.In addition, bar 252c is according to the one side from piston 252b, fixes along the mode that axial (that is, the direction of action of piston 252b, the direction left among Fig. 6) of sleeve 252a extends, and its end 252d is outstanding from sleeve 252a.By piston 252b, the inner space of sleeve 252a is divided into front space 252f (left side among Fig. 6) and back space 252e (right side among Fig. 6).

Heat transfer medium oil is filled in front space 252f and back space 252e in the two.Be injected into the pressure of the heat transfer medium oil among this front space 252f and the back space 252e by control, driving force arbitrarily, along sleeve 252a axially, drive rod 252c.

The end 251d of the bar 251c of first oil hydraulic cylinder 251 is connected by attaching parts 253 with the end 252d of the bar 252c of second oil hydraulic cylinder 252.So,, can control the pressure P 1 of the heat transfer medium oil in the front space 251e by the driving force of control drive rod 252c.In the present embodiment, when among front space 252f and the back space 252e any one pressurizeed, another person's pressure was atmospheric pressure, will be described later about specifying of this point.So, along from back space 252e, towards the occasion of direction (direction left among the figure) the drive rod 251c of front space 252f, its driving force is to be filled in the pressure P 2 of the heat transfer medium oil among the back space 252e and the value of the product of the sectional area A2 of piston 252b.That is, the pressure P 1 of the heat transfer medium oil in the front space 251e is P2 * A2/A1.So the sectional area A2 of the piston 252b by changing second oil hydraulic cylinder 252 can change the pressure P 1 of heat transfer medium oil, that is, and to the scope of the pressure of metallic plate 282 pressurizations.

The limiting sensor 252g that advances is the sensor whether detection piston 252b is positioned at corresponding installation site with retreating limiting sensor 252h.In the present embodiment, according to piston 252b being controlled in the mode of advancing limiting sensor 252g and retreat between the limiting sensor 252h.The position control method that employing is advanced limiting sensor 252g and retreated limiting sensor 252h will be explained hereinafter.

Control method to the driving force of drive rod 252c is described below.

Direction transfer valve SV5 is for having the first port P1, the second port P2, the 4 port transfer valves of the 3rd port P3 and the 3rd port P4.This direction transfer valve SV5 switches " P1 and P3 conducting, and P2 and P4 conducting " two states with " P1 and P4 conducting, and P2 and P3 conducting ".The outlet of the first port P1 and pump 259a is connected by managing 257.One end of the pipe 258 that is connected with the second port P2 is in open state.In addition, the front space 252f of the sleeve 252a of second oil hydraulic cylinder 252 and back space 252e by pipe 255 and 256, are connected with the 3rd port P4 with the 3rd port P3 of direction transfer valve SV5 respectively.

So when being in the state of " P1 and P3 conducting, and P2 and P4 conducting " in the setting of direction transfer valve SV5, the heat transfer medium oil of sending from pump 259a passes through pipe 255, flows to the front space 252f of the sleeve 252a of second oil hydraulic cylinder 252.On the other hand, the back space 252e of the sleeve 252a of second oil hydraulic cylinder 252 is connected with pipe 258.Consequently, the piston 252b of second oil hydraulic cylinder 252 moves towards back space 252e (among Fig. 6 to right), and the part of the heat transfer medium oil in the back space 252e is discharged by managing 258.

In addition, when the setting of direction transfer valve SV5 was in the state of " P1 and P4 conducting, and P2 and P3 conducting ", the heat transfer medium oil of sending from pump 259a passed through pipe 256, flows to the back space 252e of the sleeve 252a of second oil hydraulic cylinder 252.On the other hand, front space 252f is connected with pipe 258.Consequently, piston 252b moves towards front space 252f (direction left among Fig. 6), and the part of the heat transfer medium oil in the front space 252f is discharged by managing 258.

The change action of above-mentioned direction transfer valve SV5 is controlled by loading controls 250 (not shown)s.

On pipe 256, be provided with electromagnetic relief valve RV4.This electromagnetic relief valve RV4 controls by loading controls 250, is controlled at the mode of the pressure of regulation according to the pressure that will manage the heat transfer medium oil in 256, is fit to the on-off action of valve.Because it is identical with the pressure of managing the heat transfer medium oil in 256 to be filled in the pressure of the heat transfer medium oil between metallic plate 282 and the board 281, so the switching by control electromagnetic relief valve RV4 can be controlled at the pressure that is filled in the heat transfer medium oil between metallic plate 282 and the board 281 in the required scope.In addition, the pressure sensor PG1 that is arranged at pipe 254 is adopted in the switching of electromagnetic relief valve RV4, or is arranged at the testing result of the pressure sensor PG2 of pipe 256, carries out FEEDBACK CONTROL.

As above-mentioned, in the present embodiment, adopt following scheme, wherein, two oil hydraulic cylinders are connected, and drive the bar of one of them oil hydraulic cylinder, thus, adjust the pressure that is filled in the heat transfer medium oil in another oil hydraulic cylinder.That is, or not heat transfer medium oil is not pressurizeed directly by pump.So, even in reason, can't directly pressurize under such situation by pump to heat transfer medium oil because of temperature conditions etc., according to the scheme of present embodiment, still can heat transfer medium oil be pressurizeed according to required pressure.

In addition, advance limiting sensor 252g and retreat the testing result of limiting sensor 252h of employing, control in the following manner, this mode is: by carrying out the control of pump, the piston 252b of second oil hydraulic cylinder 252 is advancing limiting sensor 252g and retreating between the limiting sensor 252h at ordinary times.That is,, stop pump advancing limiting sensor 252g or retreat the occasion that limiting sensor 252h detects piston 252b.

On pipe 255 and 256, be respectively arranged with overflow valve RV5 and RV6.When pipe 255 and 256 interior pressure reached setting, this overflow valve RV5 and RV6 opened, and heat transfer medium oil is discharged to the outside of pipe, with the stiffling of pipe 255 and 256 below setting.

Near the port P3 and P4 of pipe 255 and 256, be respectively arranged with choke valve TV3 and TV4.This choke valve TV3 and TV4 control the flow that flows through pipe 255 and 256 heat transfer medium oil, and the responsiveness of cylinder body 512 and 522 is controlled.

The above-mentioned such forcing press that constitutes of following object, the step of pushing shaping of goods P is described.In addition, before beginning to push, movable disk portion 110,210,310 and fixed disk portion 120,220,320 are spaced apart fully, if but be in shipping situation, then can be by therebetween at the steel band 403 that is placed with goods P.

When pushing, at first, carry out the temperature control of the heat dish of each forcing press.That is, in preheating pressure machine 100 and heated press 200, the heat dish is heated, its temperature is the forming temperature of goods P, on the other hand, the heat dish of cooling pressure machine 300 is cooled off, and its temperature is remained on the normal temperature degree.In addition, in the present embodiment, the forming temperature of goods P is 300 degree.

Then, goods P is positioned on the end face on top of steel band 403.Goods P is positioned over the part of the upstream side that preheating pushes here.

Then, float means 405 and 407 on the rotating band, but make steel band 403 be in pressed state.Then, CD-ROM drive motor 409 moves goods P between the movable disk portion 110 of preheating pressure machine 100 and fixed disk portion 120.Then, stop the driving of motor 409, goods P is arranged between movable disk portion 110 and the fixed disk portion 120.

Afterwards, float means 405 and 407 on the rotating band, but make steel band 403 be in pressed state.Then, movable disk portion 110,210,310 is moved downwards, make movable disk portion near fixed disk portion, the heat dish touches distance bar 270 until the top.At this moment, the spacing between the end face on the top of the bottom surface of the vacuum seal installing plate of each movable disk portion and steel band 403 is in the scope of 0.5～1mm.At this state, the vacuum seal that is installed in the corresponding movable disk portion acts on fully, can be to sealing around the goods P.In addition, the oil cylinder portion of each forcing press of this moment is (in heated press 200, be oil cylinder portion 230) output, promptly, the value of the product of the interior pressure horizontal direction sectional area of the cylinder body of oil cylinder portion (in heated press 200, being cylinder body 232) and the top side hollow bulb of oil cylinder portion (hollow bulb of heated press 200 (on) 234a (Fig. 2)) fully is higher than the value at the product of the horizontal direction sectional area of setting press pressure described later and goods P.

Afterwards, drive vavuum pump, the pressure around the goods P is reduced to the setting vacuum pressure.

Then, drive loading controls, will pressurize is pressurized to the setting press pressure with heat transfer medium oil.As aforementioned, the output of the oil cylinder portion of each forcing press is higher than the value of product of the horizontal direction sectional area of setting press pressure described later and goods P fully, thus, do not have because of coming the pressure of self-pressurization, with the situation of lifting on the vacuum seal installing plate with heat transfer medium oil.So, set press pressure by this, goods P is carried out preheating push.After through the regulation pressurization retention time, driving pump, pressure with heat transfer medium oil reduces to pressurize.Then, open with path that vavuum pump is connected in not shown flow divider, the air pressure around the goods P is turned back to pressure.Then, movable disk portion 110 is moved upward.By above step, preheating is pushed and is finished.

In movable disk portion 110,210,310 after (but when steel band 403 is in shipping situation, the discontiguous degree of goods P and movable disk portion) rises fully, float means 405 and 407 on the rotating band, but steel band 403 is in shipping situation.Then, CD-ROM drive motor 409 is between the movable disk portion 210 and fixed disk portion 220 of heated press 200, according to the mobile goods P of distance.Consequently, goods P moves between movable disk portion 210 and fixed disk portion 220.Then, stop the driving of motor 409, goods P is arranged between movable disk portion 210 and the fixed disk portion 220.In occasion, also on tape before the driving of float means,, place goods P ' at the end face of the tip side of steel band 403 with next goods P ' that should push.In this occasion, goods P ' is according to distance preheating pressure machine 100, predetermined distance L, be positioned over the position of upstream side, goods P is arranged between movable disk portion 210 and the fixed disk portion 220, and at this moment, goods P ' is arranged between the movable disk portion 110 and fixed disk portion 120 of preheating pressure machine 100.

Then, by pushing identical step, carry out the heating of goods P and push with above-mentioned preheating.In addition, in occasion, simultaneously, carry out the preheating of goods P ' and push with next goods P ' that should push.

In movable disk portion 110,210,310 after (but when steel band 403 is in shipping situation, goods P, P ' and the discontiguous degree of movable disk portion) rises fully, float means 405 and 407 on the rotating band, but steel band 403 is in shipping situation.Then, CD-ROM drive motor 409 between the movable disk portion 310 and fixed disk portion 320 of cooling pressure machine 300, moves goods P according to distance L.Consequently, goods P is between movable disk portion 310 and fixed disk portion 320.In addition, another goods P ' is being carried out the occasion that preheating is pushed, these goods P ' moves between the movable disk portion 210 of heated press 200 and fixed disk portion 220.Then, stop the driving of motor 409, between movable disk portion 310 and fixed disk portion 320, goods P is set.In addition, has the goods P that next should be pushed " occasion, also on tape before the driving of float means,, place goods P " at the end face of the tip side of steel band 403.In this occasion, " according to distance preheating pressure machine 100, predetermined distance L; be positioned over the position of upstream side; goods P is arranged between movable disk portion 210 and the fixed disk portion 220, at this moment, goods P " is arranged between the movable disk portion 110 and fixed disk portion 120 of preheating pressure machine 100 goods P.

Then, by pushing identical step, carry out the cooling of goods P and push with above-mentioned preheating.The preheating of " occasion, carry out the heating of goods P ' simultaneously and push goods P " is pushed in addition, to have goods P ', the P that next should be pushed.

Then, movable disk portion 110,210,310 fully (but when steel band 403 is in shipping situation, goods P, P ', P " with the discontiguous degree of movable disk portion) rise after, float means 405 and 407 on the rotating band, but steel band 403 is in shipping situation.Then, CD-ROM drive motor 409, according to distance L, the mode of mobile downstream goods P drives steel band 403.Like this, the goods P that pushes end is to the downstream of cooling pressure machine 300, and it takes out by not shown pick-up.

Claims

1. forcing press is characterized in that: this forcing press comprises,

A pair of heat dish;

The heat dish is maintaining body at interval, and this heat dish maintaining body at interval makes one in the above-mentioned a pair of heat dish fixing with the isolated state of prescribed distance with another;

Metallic plate, this metallic plate are fixed at least one heat dish according to the mode of the face that covers workpiece side;

Heat transfer medium, this heat transfer medium are filled in the clearance portion of above-mentioned at least one heat dish and metallic plate;

Temperature control device, the temperature of the above-mentioned heat dish of this temperature control device control;

The heat transfer medium pressure adjustmenting mechanism, this heat transfer medium pressure adjustmenting mechanism is coiling maintaining body at interval by above-mentioned heat, when spacing keeps the spacing of above-mentioned a pair of heat dish according to the rules, adjust the pressure of above-mentioned heat transfer medium, the workpiece that is arranged between the above-mentioned a pair of heat dish is applied thrust.

2. forcing press according to claim 1 is characterized in that: above-mentioned heat dish maintaining body at interval is the bar of the specified altitude on the fixing above-mentioned heat dish, and this bar extends towards above-mentioned another heat dish.

3. forcing press according to claim 1, it is characterized in that: on above-mentioned at least one heat dish, vacuum seal is installed, this vacuum seal when this workpiece is pushed, extraneous gas relatively, seal the gap of above-mentioned a pair of heat dish, the space of the periphery of this workpiece is sealed.

4. forcing press according to claim 3 is characterized in that: above-mentioned forcing press comprises vavuum pump, and this vavuum pump reduces the air pressure in the space of this workpiece periphery when this workpiece is pushed.

5. forcing press according to claim 1 is characterized in that: this workpiece is positioned over metal being with, and is transported between the above-mentioned a pair of heat dish, and the mode that above-mentioned forcing press is pushed this workpiece together with band constitutes.

6. press machine system is characterized in that: this system comprises,

First forcing press, this first forcing press is heated to set point of temperature with workpiece;

Second forcing press, it is tight that this second forcing press carries out hot pressing to the workpiece by above-mentioned first forcing press heating;

Belt conveyer, this belt conveyer is positioned over above-mentioned workpiece on metal being with, and workpiece is sent to second forcing press from first forcing press;

This system is according to passing through above-mentioned first and second forcing presses, and the mode of this workpiece being pushed together with band constitutes.

7. press machine system according to claim 6 is characterized in that: this press machine system comprises the 3rd forcing press, and the 3rd forcing press has a pair of heat dish, and this is pushed this workpiece with method of clamping the heat dish; Metal bolster, this metal bolster be according to the mode of the bottom surface that covers this workpiece side, is fixed at least one the face of workpiece side of above-mentioned heat dish, cools off carrying out the tight workpiece of hot pressing by above-mentioned second forcing press;

Above-mentioned belt conveyer constitutes in the following manner, and this mode is: this workpiece is positioned over above-mentioned being with, and workpiece is transported on the 3rd forcing press from above-mentioned second forcing press, by the 3rd forcing press, together with band this workpiece is pressurizeed.

8. press machine system according to claim 7 is characterized in that: the spacing between above-mentioned first forcing press and second forcing press equates with spacing between second forcing press and the 3rd forcing press.

9. press machine system according to claim 6 is characterized in that: above-mentioned band constitutes according to the mode of the bottom surface integral body that covers this workpiece.

10. press machine system according to claim 9 is characterized in that: be subjected to mirror finish with the workpiece contact-making surface in the above-mentioned band.

11. press machine system according to claim 6, it is characterized in that: have the float means of being with, this is with float means according to when transporting this workpiece, and above-mentioned workpiece and the mode that above-mentioned band does not contact with above-mentioned forcing press make in the space of above-mentioned band between above-mentioned a pair of heat dish and float.