CN102019676B - Heating equipment of steam heating mould - Google Patents
Heating equipment of steam heating mould Download PDFInfo
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- CN102019676B CN102019676B CN 201010526057 CN201010526057A CN102019676B CN 102019676 B CN102019676 B CN 102019676B CN 201010526057 CN201010526057 CN 201010526057 CN 201010526057 A CN201010526057 A CN 201010526057A CN 102019676 B CN102019676 B CN 102019676B
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Abstract
The invention relates to heating equipment of a steam heating mould, comprising a control device, a high-temperature dry air generating device, a high-temperature steam generating device and a mould, wherein the mould is provided with a mould cavity, a material importing sprue and a pouring gate communicating the mould cavity with the sprue; the high-temperature dry air generating device generates high-temperature dry air and outputs the dry air to the mould cavity of the mould; the high-temperature steam generating device generates high-temperature steam and outputs the steam to the mould cavity of the mould; and the control device controls time sequence for importing the material, high-temperature dry air and high-temperature steam into the mould cavity based on preset parameters. The high-temperature steam is utilized to heat the surface layer of the mould cavity, and then the high-temperature dry air is utilized to remove steam and moisture in the mould cavity, thus heating of thewhole mould core is not required, the mould heating time is reduced, and the energy consumption is also reduced; and meanwhile the structure of the mould is simple, and the mould production cost is low.
Description
[technical field]
The present invention relates to technology of die manufacturing, more particularly, relate to a kind of firing equipment that utilizes high-temperature steam heating mould die cavity top layer.
[background technology]
In the prior art, traditional injection mold heater adopts heating to add hot water or the good liquid of heat conduction wet goods heat-conductive characteristic usually, then heated water or conduction oil are fed in the mold heated runner, make mould can keep the temperature preset in the injecting glue stage, as patent CN293328, CN2621910Y and CN200957650.
Studies show that, having more than 100 degrees centigrade if can keep mold temperature in injection phase, especially, when mold temperature reaches more than 150 degrees centigrade, the part strength height that injection mo(u)lding is produced; This is because mould is heated during injection moulding, makes the flowability of raw material in die cavity improve, and has avoided the cooling back to be easy to generate region of stress concentration because internal density is inhomogeneous.In addition, because the superficial density of part is also very even, this makes surface quality of workpieces very good, welds line as eliminating piece surface, welds trace, ripple, filamentary silver line, surperficial shrink phenomenon, improve product surface quality, product does not need the follow-up process of surface treatment that sprays paint.After the mobile raising of raw material simultaneously, can reduce the floating fine phenomenon that adds fine part, improve yield rate 20-30%; Defectives such as the not high scarce material that produces of flowability, gas line in the time of also can avoiding because of thin-walled injection moulding; Injection cycle in the time of can also reducing the heavy wall moulding.
Increasing to the demand of injection-moulded plastic part surface best bright finish at present, what rise is various appearance to the mold heated technology thereupon, directly heat core rod technology etc. as high-temperature steam heating core rod technology, intermediate frequency or high-frequency heating core rod technology, high-temperature water or heat-conducting oil heating core rod technology and electrothermal tube, purpose is to make cavity surface keep higher temperature in the injection process, makes piece surface reach best bright finish, part bulk strength height.A something in common of these equipment is, cavity surface temperature is to rely on the heat conduction, with heat from the core rod conducted inside to cavity surface.The problem of its existence is that heat is not to be applied directly to cavity surface, and mold heated all needs the relative long time with the cooling required time; Because whole core rod all is heated, produce the required heat of core rod heating so need to consume bigger energy; And owing to bury heating element heater underground in core rod, make Mold Making process relative complex, production cost is very high.And these heating techniques or method only are aimed at the back mould and heat, because if to the front mould heating, because heat conducting cause, thimble also can progressively be heated, thereby the stuck phenomenon of mould thimble can take place easily; But only heating back mould core rod can not thoroughly solve the defective that moulding is easy to generate distortion or warpage again.
In addition, adopt in the mode of high temperature oil, water and Steam Heating mould, need special runner be set at core rod allows these thermal mediums pass through, but runner can be restricted in layout because of the structure of core rod itself, be easy to like this make that the skin temperature of back mould die cavity is inhomogeneous, the moulding defective that causes some structure can not be resolved.
In addition, also having a weak point in the said equipment is exactly to need to consume more energy.Be example with one 300 tons injection machines, the rated input power of electrical heating die apparatus is about 30kW, and the rated input power of 100 injection machines then reaches 3000kW.
France RocToo l company has developed the technology of utilizing electromagnetic induction phenomenon heating mould surface, and it is dark that the die surface part will be heated to 0.2mm, and the part of mould inside 99.9% still is in the state of cooling.But the module of mould must adopt the manufacturing of magnetic steel material.In order to guarantee effective electromagnetism conduction, must contain chromium or nickel in the mold materials, and the magnetic conductivity of P20 mould steel can not satisfy this requirement.P20 is U.S.'s mould steel trade mark, and corresponding is 718 mould steel of Sweden, is to make medium-to-high grade mould core material extremely commonly used, and its equipment cost is higher, and the die cost during manufacturing is also high.
[summary of the invention]
The technical problem to be solved in the present invention is, the defective that power consumption height, production cycle are long or equipment cost is high, die cost is high at various mold heating devices existence in the prior art, a kind of firing equipment of Steam Heating mould is provided, and this equipment can utilize high-temperature steam that the die cavity top layer is directly heated.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of firing equipment that utilizes the Steam Heating mould, it is characterized in that, comprise control device, high temperature dry air generating means, high-temperature steam generation apparatus and mould; Mould, be provided with die cavity, import material cast gate, be communicated with the running channel of die cavity and cast gate; The high temperature dry air generating means produces high temperature dry air and exports described mould cavity to; High-temperature steam generation apparatus produces high-temperature steam and exports described mould cavity to; Control device is according to the sequential in parameter preset control material, high temperature dry air and the high-temperature steam importing die cavity; Described mould is provided with air inlet and gas outlet, is provided with air intake duct between described air inlet and the die cavity, is provided with gas off-take between described gas outlet and the die cavity; Be provided with the dry air branch road between the dry air outlet of described high temperature dry air generating means and the mould air inlet; Be provided with the steam branch road between the steam (vapor) outlet of described high-temperature steam generation apparatus and the mould air inlet; Described steam branch road comprises that connecting the steam master tracheae and the connection that are arranged between steam (vapor) outlet and the mould air inlet is arranged on steam (vapor) outlet and outside steam bypass line.
In the firing equipment of Steam Heating mould of the present invention, described dry air branch road comprises that connecting the dry air master tracheae and the connection that are arranged between dry air outlet and the mould air inlet is arranged on dry air outlet and outside dry air shunt valve.By dry air master tracheae is set, make things convenient for control device that the sequential that dry air imports in the die cavity is controlled; By the dry air shunt valve is set, make when the dry air branch road does not insert the mould air inlet, the too much high temperature dry air that produces in the high temperature dry air generating means in time can be discharged, avoid causing danger.
In the firing equipment of Steam Heating mould of the present invention, be provided with the dry air passage that is communicated with described running channel in the described mould, described dry air branch road comprises that connection is arranged on the dry air time tracheae between dry air outlet and the dry air passage.By dry air time tracheae is set, make dry air to enter in the die cavity from running channel, and then steam residual in the running channel can be taken away, and dry up the running channel surface, prevent that moisture is to the influence of material.
In the firing equipment of Steam Heating mould of the present invention, described high-temperature steam generation apparatus comprises clarifier, deionizater, boiler successively; Described clarifier inserts the water source and water is carried out exporting deionizater to behind the contaminant filter; Export boiler to behind the active metallic ion in the described deionizater removal water; Described boiler is delivered to the steam branch road after heating water to water vapour.
In the firing equipment of Steam Heating mould of the present invention, described high-temperature steam generation apparatus also comprises water storage box, moisturizing booster pump and the check valve that is arranged between deionizater and the boiler; Thereby in time lay in satisfactory water, in order to be used for making high-temperature steam.
In the firing equipment of Steam Heating mould of the present invention, described high-temperature steam generation apparatus also comprises circulating water treatment device, described circulating water treatment device comprises the condenser that entrance is connected with described mould gas outlet, the filter that is connected with condensator outlet, and the outlet of described filter is connected with described water storage box.The high-temperature steam that the gas outlet is discharged collects and is condensed into water, by filter will magazine wherein filter the back as clean water deposit in water storage box, avoided the waste of water, need not deionization again for the condensed water of collecting, saved consumption of raw materials.
In the firing equipment of Steam Heating mould of the present invention, described high temperature dry air generating means comprises air compressor, drier, cleaner and the heater that connects successively; Described air compressor sucks air and is compressed to drier; Described drier is sent into cleaner after removing airborne moisture; Described cleaner is sent into heater after removing airborne suspended impurity; Described heater is delivered to the dry air branch road after to air heat.
In the firing equipment of Steam Heating mould of the present invention, described high temperature dry air generating means also comprises check valve and the air accumulator that is arranged between cleaner and the heater.The dry air of deposit cleaning in time is in order to be used for making high temperature dry air.
In the firing equipment of Steam Heating mould of the present invention, described control device comprises processor, the logical air intake duct stop valve that closes of the described air intake duct of control, the logical gas off-take stop valve that closes of the described gas off-take of control, the logical running channel stop valve that closes of the described running channel of control; Processor is controlled described air intake duct stop valve, gas off-take stop valve and running channel stop valve, and then control material, high temperature dry air and high-temperature steam import the sequential in the die cavity.
In the firing equipment of Steam Heating mould of the present invention, described running channel stop valve comprises the slidably slide bar that arranges perpendicular to running channel and drives first drive unit that slide bar slides that slide bar is provided with the through hole that is complementary with running channel.
In the firing equipment of Steam Heating mould of the present invention, but described air intake duct stop valve comprise perpendicular to described air intake duct setting and block live in air flue push rod, make push rod break away from air intake duct flexible member, promote second drive unit that push rod slips into air intake duct; But described gas off-take stop valve comprise perpendicular to described gas off-take setting and block live gas off-take push rod, make push rod detach air flue flexible member, promote the 3rd drive unit that push rod slips into gas off-take.
Implement the firing equipment of Steam Heating mould of the present invention, has following beneficial effect: control material, high temperature dry air, high-temperature steam according to parameter preset and import sequential in the die cavity by control device is set, made before carrying out material feeding, earlier in die cavity, import high-temperature steam, high-temperature steam and cavity surface are carried out heat exchange, thereby have improved the temperature on die cavity top layer in the short time rapidly at the utmost point; After continuing in die cavity, to feed steam a period of time (setting according to Preset Time), the temperature on die cavity top layer (cavity surface begins about deeply 2-4mm) is identical with the temperature of cavity surface or be close, can arrange this temperature reach or slightly exceed shoot material before to the temperature requirement of die cavity (when needs shot material when this temperature design according to mould raw material in die cavity, have good flowability or requirement of strength design or surface quality require definite); And the temperature basically identical before the temperature at other positions of mould and the matched moulds makes this firing equipment only need a spot of energy like this, and does not need whole core rod heating, so energy consumption is low.By dry air branch road and steam branch road are set in firing equipment, it is more convenient to make control device control.By steam bypass line is set, make when the steam branch road does not insert the mould air inlet, the too much high-temperature steam that produces in the high-temperature steam generation apparatus in time can be discharged, avoid causing danger.High-temperature steam can be taken away the impurity that remains in cavity surface on the other hand, has guaranteed the fineness of cavity surface, thereby can obtain the more product surface of best bright finish.After the die cavity top layer reaches uniform temperature, in die cavity, import high temperature dry air again, the moisture content that utilizes high temperature dry air steam unnecessary in the die cavity can be discharged and will be sticked to cavity surface is taken away, and makes whole die cavity keep dry; Because the high temperature air of this moment is the high temperature that meets design requirement, therefore, the temperature on die cavity top layer can not reduce substantially.In die cavity, import material more afterwards, shoot material, pressurize, cooling, can finish whole process.When cooling, owing to have only the die cavity skin temperature higher, so shorten cool time, also shortened the production cycle of single-piece, improved production efficiency.
The invention will be further described below in conjunction with drawings and Examples.
[description of drawings]
Fig. 1 is the structural representation of the firing equipment of Steam Heating mould of the present invention;
Fig. 2 is mould structure schematic diagram in the firing equipment of Steam Heating mould of the present invention;
Fig. 3 is the schematic perspective view of the other direction of Fig. 2;
Fig. 4 is the front view of mould in the firing equipment of Steam Heating mould of the present invention;
Fig. 4 a is the A-A cutaway view of Fig. 5;
Fig. 4 b is the B-B cutaway view of Fig. 4;
Fig. 5 is the rearview of Fig. 4;
Fig. 5 a is the C-C cutaway view of Fig. 5.
[specific embodiment]
As shown in Figure 1, in the preferred embodiment of the firing equipment of Steam Heating mould of the present invention, comprise control device (not shown), high temperature dry air generating means 200, high-temperature steam generation apparatus 300 and mould 400.Wherein, shown in Fig. 5,5a, be provided with die cavity 401, cast gate 411 and running channel 410 in the mould 400, cast gate 411 is arranged on mould 400 surfaces, and running channel 410 is communicated with cast gate 411 and die cavity 401, can carry out injection moulding processing to injecting material in the die cavity 401 by cast gate 411.High temperature dry air generating means 200 is used for producing high temperature dry air and is delivered in the die cavity 401, and high temperature dry air generating means 200 is for generation of high temperature dry air and be delivered in the die cavity 401.Control device is used for according to the sequential in parameter preset control material, high temperature dry air and the high-temperature steam importing die cavity 401.
Shown in Fig. 4 a, 4b, in this preferred embodiment, mould 400 is provided with air inlet 421 and gas outlet 431, is provided with air intake duct 420 between air inlet 421 and die cavity 401, is provided with gas off-take 430 between gas outlet 431 and die cavity 401.Mould 400 can be set comprise front mould 402, back mould 403 and core rod 404, above-mentioned die cavity 401 is arranged in the core rod 404, processing for convenience, air intake duct 420 and gas off-take 430 can be arranged on front mould 402 and the back mould 403, and at core rod 404 corresponding passage is set, make gas off-take 430 and air intake duct 420 be communicated with the die cavity 401 of core rod inside.
As shown in Figure 1, in this preferred embodiment, high-temperature steam generation apparatus 300 comprises clarifier 302, deionizater 303, boiler 304 successively.Wherein, external water source inserts in the clarifier 302, and the impurity in 302 pairs of water of clarifier filters, and exports deionizater 303 then to; Avoid the impurity in the water to enter into die cavity 401 and be attached to die cavity 401 surfaces with steam by the filtration of clarifier 302, and then have influence on the surface smoothness of product.Water after the purification enters in the deionizater 303, exports boiler 304 to behind the active metallic ion that deionizater 303 is removed in the water.Because the active metallic ion in the water is more active under the condition of high temperature, be easy to mould 400 in metal ion replace, make die cavity 401 surfaces corrode easily, cause mould 400 to use that the fineness on its die cavity 401 surfaces has increased soon after a period of times, need often to safeguard that cost is higher.Active metallic ion by deionizater 303 is removed in the water reduces the corrosion to mould 400 surfaces, and then has reduced the maintenance cost of mould 400, has improved its service life.After pure water after treatment entered boiler 304, boiler 304 was heated to water vapour with pure water, is delivered to mould air inlet 421 by steam (vapor) outlet then, so just can carry high-temperature steam pure, that active metallic ion is few in die cavity 401.
In this preferred embodiment, high-temperature steam generation apparatus 300 also comprises water storage box 305, moisturizing booster pump 306 and the check valve 307 that is arranged between deionizater 303 and the boiler 304.Wherein, water storage box 305 is used for the good pure water of stores processor, so that at any time can be with pure water for the manufacture of high-temperature steam; Moisturizing booster pump 306 is used for the pure water pump in the water storage box 305 to boiler 304, and is excessive to prevent because of the pressure in the boiler 304, and pure water in time can't be supplemented in the boiler 304; Check valve 307 is used for preventing the opposing steam flow of boiler 304 inner high voltages.
For convenience the high-temperature steam that high-temperature steam generation apparatus 300 is produced imports die cavity 401, in this preferred embodiment, preferably between the steam (vapor) outlet 308 of high-temperature steam generation apparatus 300 and mould air inlet 421 the steam branch road is set.By logical the closing of control device control steam branch road, control the sequential in the high-temperature steam feeding die cavity 401.In this preferred embodiment, the steam branch road can be set comprise steam master tracheae 311 and steam bypass line 312.Wherein, 311 connections of steam master tracheae are arranged between steam (vapor) outlet 308 and the mould air inlet 421, the high-temperature steam that is used for high-temperature steam generation apparatus 300 is produced imports in the die cavity 401 through mould air inlet 421, can the first steam valve 311a be set at steam master tracheae 311, make things convenient for logical the closing of control device control steam master tracheae 311, and then the control high-temperature steam imports the sequential of die cavity 401.When equipment in when work, boiler 304 continues to produce water vapours; And when not needing to import high-temperature steam in die cavity 401, the vapor pressure in the boiler 304 constantly increases.Excessive for preventing steam pressure, this preferred embodiment arranges steam bypass line 312 between steam (vapor) outlet 308 and outside, in order to when steam pressure is excessive unnecessary steam is discharged.Can the second steam valve 312a be set at steam bypass line 312, make things convenient for control device that its logical closing is controlled, just discharge high-temperature steam when needed, and make this steam bypass line 312 keep normally off under the normal condition.
As shown in Figure 1, in this preferred embodiment, high temperature dry air generating means 200 comprises air compressor 201, drier 202, cleaner 203 and the heater 204 that connects successively; Air compressor 201 sucks air and is compressed to drier 202; Send into cleaner 203 after drier 202 is removed airborne moisture, avoid airborne moisture to enter into die cavity 401 interior backs and become condensed water at die cavity 401 surface condensations, and then have influence on the surface smoothness of product; Cleaner 203 is sent into heater 204 after removing airborne suspended impurity, avoids impurity to enter in the die cavity 401 and is attached to the surface smoothness that die cavity 401 surfaces have influence on product; Export by the dry air outlet after 204 pairs of air heat of heater, thereby provide high temperature dry air to die cavity 401.The height of drying-air temperature can be set as required, can realize by the control of control device to the working time of heater 204 particularly.In this preferred embodiment, high temperature dry air generating means 200 also comprises check valve and the air accumulator that is arranged between cleaner 203 and the heater 204.Air after the filtration stores in air accumulator earlier, check valve can prevent that the air of handling from flowing backward in the cleaner 203, thereby progressively increase the pressure in the air accumulator, make the high temperature dry air of output have certain malleation, so that high temperature dry air flows in the die cavity 401 fast.
For convenience the high temperature dry air that high temperature dry air generating means 200 is produced imports die cavity 401, in this preferred embodiment, preferably between the dry air outlet 205 of high temperature dry air generating means 200 and mould air inlet 421 the dry air branch road is set.By logical the closing of control device control dry air branch road, control the sequential in the high temperature dry air feeding die cavity 401.In this preferred embodiment, the dry air branch road can be set comprise dry air master tracheae 211 and dry air shunt valve 212.Wherein, 211 connections of dry air master tracheae are arranged between dry air outlet 205 and the mould air inlet 421, the high temperature dry air that is used for high temperature dry air generating means 200 is produced imports in the die cavity 401 through mould air inlet 421, can the first dry air valve 211a be set at dry air master tracheae 211, make things convenient for logical the closing of control device control dry air master tracheae 211, and then the control high temperature dry air imports the sequential of die cavity 401.When equipment in when work, heater 204 continues to produce high temperature dry air, and when not needing to import high temperature dry air in die cavity 401, the high temperature dry air air pressure of generations constantly increase in the heater 204, and accumulates in the air accumulator.Excessive for preventing high temperature dry air pressure, this preferred embodiment arranges dry air shunt valve 212 between dry air outlet 205 and outside, in order to when dry air pressure is excessive unnecessary dry air is discharged.Can the second dry air valve 212a be set at dry air shunt valve 212, make things convenient for control device that its logical closing is controlled, just discharge high temperature dry air when needed, and make this dry air shunt valve 212 keep normally off under the normal condition.In addition, after importing high-temperature steam to die cavity 401, the part high-temperature steam is trapped in the running channel 410 easily, and forms condensed water on running channel 410 surfaces; When by running channel 410 in the die cavity 401 during the importing material, steam and condensed water are brought in the die cavity 401, and then can have influence on the quality of product.For this reason, shown in Fig. 5 a, in this preferred embodiment, preferably at mould 400 dry air passage 440 is set, these dry air passage 440 1 ends are communicated to running channel 410, preferably are communicated with on running channel 410 near cast gate 411 positions; The other end of dry air passage 440 is communicated with the dry air air inlet 421 that mould 400 surfaces arrange.The dry air branch road is set comprises that also dry air time tracheae 213(sees Fig. 1), this time tracheae connects between the dry air air inlet 421 of the dry air outlet 205 be arranged on the high temperature dry air generating means and mould, and namely this time tracheae connects and is arranged between dry air outlet 205 and the running channel 410.So just high temperature dry air can be imported in the running channel 410, steam residual in the running channel 410 is taken away, and dry up running channel 410 surfaces, prevent that moisture is to the influence of material.Be preferably on the dry air time tracheae 213 the 3rd dry air valve 213a is set, make things convenient for control device that the high temperature dry air that imports running channel 410 is controlled.In this preferred embodiment, preferably dry air master tracheae 211 is divided into two branch roads, wherein a branch road is connected with dry air time tracheae 213, and another branch road is communicated with the air inlet 421 of mould; Control device reaches importing in the die cavity 401 and the sequential of the high temperature dry air in the running channel 410 is controlled by controlling the above-mentioned first dry air valve.Be preferably in two dry air valves are set on two branch roads again, one of them is the 3rd dry air valve on the above-mentioned dry air time tracheae 213, and another the 4th dry air valve 211b for arranging on another branch road makes things convenient for control device that logical the closing respectively of two branch roads controlled.
In this preferred embodiment, control device comprise processor, the logical air intake duct stop valve 120(that close of control air intake duct 420 see Fig. 4 a), the control gas off-take 430 logical gas off-take stop valve 130(that close see Fig. 4 b), the control running channel 410 logical running channel stop valve 110(that close see Fig. 5 a); Processor is controlled air intake duct stop valve 120, gas off-take stop valve 130 and running channel stop valve 110 according to pre-set programs, and then control material, high temperature dry air and high-temperature steam import the sequential in the die cavity 401.
Shown in Fig. 5 a, running channel stop valve 110 can be set comprise that slide bar 111 and the first drive unit 112(that drives slide bar 111 slips see Fig. 2,3).Wherein slide bar 111 arranges perpendicular to running channel 410, is provided with the slideway that slides for slide bar 111 in the mould 400, and slide bar 111 is provided with the through hole 113 that is complementary with running channel 410; First drive unit 112 is controlled by processor.First drive unit 112 can be set be the first cylinder 112a by processor control, when the first cylinder 112a promotes slide bar 111 slips, through hole 113 on the slide bar staggers with running channel 410, make running channel 410 be blocked by slide bar 111, prevent that high temperature dry air or the high-temperature steam in the die cavity 401 is back to cast gate 411 places.When the first cylinder 112a bounces back, drive slide bar 111 and reset, this moment, the through hole 113 of slide bar faced running channel 410, thereby opened running channel 410, in order to pass through running channel 410 to die cavity 401 interior material feedings.Preferably dry air passage 440 is arranged in the slide bar 111 in this preferred embodiment, particularly, the air flue 114 of hollow can be set in this slide bar 111, this air flue 114 is above-mentioned dry air passage 440.One end of this air flue 114 is provided with gas outlet 115, and this gas outlet 115 is arranged on slide bar 111 sides of die cavity one side; The other end of this air flue 114 is communicated with above-mentioned dry air time tracheae 213.When the first cylinder 112a promotes slide bar 111 slips, the gas outlet 115 of through hole 113 air flue with running channel 410 dislocation is over against running channel 410, and make air flue 114 towards die cavity one side and running channel conducting, and this air flue 114 is plugged towards cast gate one side, material can not enter in the die cavity 401 and the high temperature dry air that dry air time tracheae 213 imports can be dry air passage 440 by air flue 114(by running channel 410 like this) import in the running channel 410, to remove residual steam and condensed waters in the running channel 410; Driving slide bar 111 when the first cylinder 112a bounces back resets, this moment air flue gas outlet 115 with running channel 410 dislocation through hole 113 over against running channel 410, material can enter by running channel 410 and carry out injection moulding in the die cavity 401 like this, and dry air stops to import in the running channel 410, guarantee that the material that injects can not mix air, to guarantee the quality of product.
Shown in Fig. 4 a, in this preferred embodiment, air intake duct stop valve 120 can be set comprise that push rod 121, flexible member 122 and the second drive unit 123(see Fig. 2,3).Wherein, but push rod 121 arranges perpendicular to air intake duct 420 and air flue 420 is lived in block; Flexible member 122 is arranged between push rod 121 and the mould 400, can make push rod 121 break away from air intake duct 420; Second drive unit 123 is slipped in the air intake duct 420 for promotion push rod 121 by processor control air intake duct 420 is blocked.Particularly, mould 400 is provided with the slideway that slides for push rod 121, and this slideway arranges perpendicular to air intake duct 420; Flexible member 122 is for being arranged on the spring 122a between push rod 121 and the mould 400, and this spring 122a can drive push rod 121 and break away from air intake duct 420; It is the second cylinder 123a that is controlled by processor that second drive unit 123 can be set.When processor was controlled second cylinder 123a promotion push rod, 121 insertion air intake ducts 420, push rod 121 was blocked air intake duct 420, thereby closes air intake duct 420; When processor was controlled the second cylinder 123a and resetted, push rod 121 broke away from air intake duct 420 under the elastic force effect of spring 122a, thereby air intake duct 420 is opened.Because the restriction of mould 400 structures, the size of front and back mould 403 on the matched moulds direction is shorter usually, in this preferred embodiment, preferably with the piston rod 124 and push rod 121 vertical settings of cylinder, the inclined-plane 125 that cooperatively interacts is set between the end of piston rod 124 and push rod 121 ends, makes piston rod 124 can rely on this cooperations inclined-plane 125 to promote push rods 121 slips.
Equally, shown in Fig. 4 b, but can set out air flue stop valve 130 comprise perpendicular to gas off-take 430 arrange and block live gas off-take push rod 131, make push rod detach air flue flexible member 132, promote the 3rd drive unit 133 that push rod slips into gas off-take.
During use, utilize control device to set parameter preset earlier, this parameter preset comprises default steam time, default dry air time, default material feeding time.In each injection cycle, the processor of control device is control mould 400 matched moulds earlier; Control again running channel stop valve 110 close and control air intake duct stop valve 120, gas off-take stop valve 130 is opened, the steam branch road is inserted air intake duct 420 and continues the default steam time; Processor inserts the dry air branch road air intake duct 420 again and continues the default dry air time; Processor controls air intake duct stop valve 120 and gas off-take stop valve 130 again and cuts out and control running channel stop valve 110 and open, and imports materials and continues the default material feeding time in die cavity 401; Processor is controlled mould 400 disengagings again and is taken out product.Thereby realize the time sequence control in material, high temperature dry air and the high-temperature steam importing die cavity 401.
For convenience parameter preset is set, in this preferred embodiment, control device also comprises input unit, display unit, can set parameter preset by input unit, can show the numerical value of parameter preset by display unit.Control device preferably is set also comprises storage device, storage is provided with the parameter preset database in the storage device, comprise data such as weight and parameter preset in the parameter preset database, can select the parameter preset of coupling according to the product weight of input unit input from the parameter preset database, it is more simple to make this firing equipment operate; Only need input just can choose parameter preset automatically for weight or the overall size parameter of converted products, operating personnel need not to grasp empirical data and just can operate firing equipment.
In order to monitor real-time drying-air temperature and vapor (steam) temperature, in order to just start working when dry air and steam meet the requirements, the control device of firing equipment of the present invention also can comprise drying-air temperature detection module and vapor (steam) temperature detection module (not shown).Wherein, the drying-air temperature detection module is used for the high temperature dry air of high temperature dry air generating means 200 outputs is carried out temperature detection and obtained its real-time drying-air temperature, the drying-air temperature detection module can be set comprise the thermocouple that is arranged on 431 places, heater gas outlet, obtain real-time drying-air temperature by this thermocouple.The vapor (steam) temperature detection module is used for the high-temperature steam of high-temperature steam generation apparatus 300 outputs is carried out temperature detection and obtains the real-time steam temperature, the vapor (steam) temperature detection module can be set comprise the thermocouple that is arranged on 431 places, boiler gas outlet, obtain the real-time steam temperature by this thermocouple.
In order to adapt to different needs, also can set different operational modes in the firing equipment of the present invention.As rated temperature operational mode, test temperature operational mode etc., can select its operational mode by the input unit of control device.Under different operational modes, the pre-set programs of firing equipment is also inequality.When firing equipment enters the test temperature operational mode, no matter the temperature level of the high-temperature steam that the high temperature dry air that control device high temperature dry air generating means 200 produces and high-temperature steam generation apparatus 300 produce is directly controlled firing equipment and entered injection cycle; Obtain real-time drying-air temperature and real-time steam temperature respectively at injection cycle inner controller control drying-air temperature detection module and vapor (steam) temperature detection module; Determine according to the parameters such as surface smoothness that obtain product whether product is qualified again, determine whether to need to revise the temperature of high temperature dry air and high-temperature steam with this, to obtain the empirical value of default drying-air temperature and default vapor (steam) temperature.
In this preferred embodiment, parameter preset also can comprise default drying-air temperature, default vapor (steam) temperature.When firing equipment enters the rated temperature operational mode, the drying-air temperature detection module of control device and vapor (steam) temperature detection module detect the real time temperature of high temperature dry air and high-temperature steam respectively, and compare respectively with default drying-air temperature and default vapor (steam) temperature; The processor of control device during greater than default vapor (steam) temperature, is controlled firing equipment and is entered injection cycle greater than default drying-air temperature and real-time steam temperature in real-time drying-air temperature.
In the above-described embodiments, the high-temperature steam that high-temperature steam generation apparatus 300 produces directly is expelled in the environment by gas off-take 430 after die cavity 401 is heated, and only carries the small amount of impurities in the die cavity 401 in the steam of discharge; And the water that produces high-temperature steam again and need earlier the water source to be sent here filters to handle with deionization and could heat use.In order to take full advantage of the steam of this discharge, in this preferred embodiment, high-temperature steam generation apparatus 300 preferably is set also comprises circulating water treatment device.As shown in Figure 1, circulating water treatment device comprises condenser 321 and filter 322.Wherein, the entrance of condenser 321 is connected with mould 400 gas outlets 431, and filter 322 is connected with condenser 321 outlets, and the outlet of filter 322 is connected with water storage box 305.The steam of discharging from gas off-take 430 forms condensed water after condenser 321 condensations like this, filter the back through filter 322 again and form spendable condensed water, it is interior for using that this condensed water directly enters water storage box 305, through forming high-temperature steam again after boiler 304 heating, realizes recycling of water.In order to increase the flowability of high-temperature steam, preferably in condenser 321 porch magnetic drive pump 323 is set, also can check valve 324 be set at gas off-take 430 places simultaneously, prevent that steam from flowing backwards.
In the above-described embodiments, also be provided with steam channel 450 in the mould 400, the steam branch road comprises that also connection is arranged on the steam time tracheae 313 between steam (vapor) outlet 308 and the steam channel 450.Steam channel 450 is arranged in the mould 400, but is not communicated with die cavity 401; Steam time tracheae 313 imports high-temperature steam in the steam channel 450 mould 400 is assisted heating, to improve the firing rate of mould 400; Preferably steam channel 450 is arranged in the core rod 404, because die cavity 401 is arranged in the core rod 404.Also the outlet of steam channel 450 can be communicated with setting with the condenser 321 of above-mentioned circulating water treatment device, make the steam of discharging to be recycled.The exit of steam channel 450 also is provided with check valve 325, prevents opposing steam flow.Be preferably on the steam time tracheae 313 the 3rd steam valve 313a is set, make things convenient for control device that the high-temperature steam that imports running channel 410 is controlled.In this preferred embodiment, preferably steam master tracheae 311 is divided into two branch roads, wherein a branch road is connected with steam time tracheae 313, and another branch road is communicated with the air inlet 421 of mould; Control device reaches importing in the die cavity 401 and the sequential of the high-temperature steam in the running channel 410 is controlled by controlling above-mentioned first steam valve.Be preferably in two steam valves are set on two branch roads again, one of them is the 3rd steam valve 313a on the above-mentioned steam time tracheae 313, and another the 4th steam valve 311b for arranging on another branch road makes things convenient for control device that logical the closing respectively of two branch roads controlled.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (11)
1. the firing equipment of a Steam Heating mould is characterized in that, comprises control device, high temperature dry air generating means, high-temperature steam generation apparatus and mould;
Mould, be provided with die cavity, import material cast gate, be communicated with the running channel of die cavity and cast gate; The high temperature dry air generating means produces high temperature dry air and exports described mould cavity to;
High-temperature steam generation apparatus produces high-temperature steam and exports described mould cavity to;
Control device is according to the sequential in parameter preset control material, high temperature dry air and the high-temperature steam importing die cavity;
Described mould is provided with air inlet and gas outlet, is provided with air intake duct between described air inlet and the die cavity, is provided with gas off-take between described gas outlet and the die cavity; Be provided with the dry air branch road between the dry air outlet of described high temperature dry air generating means and the mould air inlet; Be provided with the steam branch road between the steam (vapor) outlet of described high-temperature steam generation apparatus and the mould air inlet;
Described steam branch road comprises that connecting the steam master tracheae and the connection that are arranged between steam (vapor) outlet and the mould air inlet is arranged on steam (vapor) outlet and outside steam bypass line.
2. firing equipment according to claim 1 is characterized in that, described dry air branch road comprises that connecting the dry air master tracheae and the connection that are arranged between dry air outlet and the mould air inlet is arranged on dry air outlet and outside dry air shunt valve.
3. firing equipment according to claim 1 is characterized in that, is provided with the dry air passage that is communicated with described running channel in the described mould, and described dry air branch road comprises that connection is arranged on the dry air time tracheae between dry air outlet and the dry air passage.
4. firing equipment according to claim 1 is characterized in that, described high-temperature steam generation apparatus comprises clarifier, deionizater, boiler successively; Described clarifier inserts the water source and water is carried out exporting deionizater to behind the contaminant filter; Export boiler to behind the active metallic ion in the described deionizater removal water; Described boiler is delivered to the steam branch road after heating water to water vapour.
5. firing equipment according to claim 4 is characterized in that, described high-temperature steam generation apparatus also comprises water storage box, moisturizing booster pump and the check valve that is arranged between deionizater and the boiler.
6. firing equipment according to claim 5, it is characterized in that, described high-temperature steam generation apparatus also comprises circulating water treatment device, described circulating water treatment device comprises the condenser that entrance is connected with described mould gas outlet, the filter that is connected with condensator outlet, and the outlet of described filter is connected with described water storage box.
7. firing equipment according to claim 1 is characterized in that, described high temperature dry air generating means comprises air compressor, drier, cleaner and the heater that connects successively; Described air compressor sucks air and is compressed to drier; Described drier is sent into cleaner after removing airborne moisture; Described cleaner is sent into heater after removing airborne suspended impurity; Described heater is delivered to the dry air branch road after to air heat.
8. firing equipment according to claim 7 is characterized in that, described high temperature dry air generating means also comprises check valve and the air accumulator that is arranged between cleaner and the heater.
9. firing equipment according to claim 1, it is characterized in that described control device comprises processor, the logical air intake duct stop valve that closes of the described air intake duct of control, the logical gas off-take stop valve that closes of the described gas off-take of control, the logical running channel stop valve that closes of the described running channel of control; Processor is controlled described air intake duct stop valve, gas off-take stop valve and running channel stop valve, and then control material, high temperature dry air and high-temperature steam import the sequential in the die cavity.
10. firing equipment according to claim 9 is characterized in that, described running channel stop valve comprises the slidably slide bar that arranges perpendicular to running channel and drive first drive unit that slide bar slides that slide bar is provided with the through hole that is complementary with running channel.
11. firing equipment according to claim 9, it is characterized in that, but described air intake duct stop valve comprise perpendicular to described air intake duct setting and block live in air flue push rod, make push rod break away from air intake duct flexible member, promote second drive unit that push rod slips into air intake duct; But described gas off-take stop valve comprise perpendicular to described gas off-take setting and block live gas off-take push rod, make push rod detach air flue flexible member, promote the 3rd drive unit that push rod slips into gas off-take.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010526057 CN102019676B (en) | 2010-10-29 | 2010-10-29 | Heating equipment of steam heating mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010526057 CN102019676B (en) | 2010-10-29 | 2010-10-29 | Heating equipment of steam heating mould |
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| CN102019676A CN102019676A (en) | 2011-04-20 |
| CN102019676B true CN102019676B (en) | 2013-10-09 |
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| EP3011101A2 (en) * | 2013-03-28 | 2016-04-27 | Indesit Company S.p.A. | Ironing appliance, in particular for household use |
| CN114179300A (en) * | 2021-11-29 | 2022-03-15 | 葛洪三 | Injection mold and injection molding system |
| CN114179307A (en) * | 2021-11-29 | 2022-03-15 | 葛洪三 | Injection molding method |
| CN116551907B (en) * | 2023-06-28 | 2023-10-10 | 苏州泽汉汽车零部件有限公司 | EPP bumper forming device and forming method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CH647860A5 (en) * | 1982-03-19 | 1985-02-15 | Euroburner | CIRCUIT FOR TRANSFERRING CALORIES TO A FLUID. |
| JP2538476B2 (en) * | 1992-02-12 | 1996-09-25 | リョービ株式会社 | Mold cooling device |
| JP5069503B2 (en) * | 2007-06-26 | 2012-11-07 | 三菱重工プラスチックテクノロジー株式会社 | Injection molding system, computer program, injection molding method, injection molding machine |
| CN201169046Y (en) * | 2007-11-23 | 2008-12-24 | 北京中拓机械有限责任公司 | Apparatus for rapidly controlling injection mold temperature change |
| JP2010012682A (en) * | 2008-07-03 | 2010-01-21 | Shisuko:Kk | Multi-heating/cooling system of mold |
| CN101362375B (en) * | 2008-08-26 | 2011-06-08 | 深圳大学 | Heating arrangement of steam heating die and injection technology using the same |
| CN201824538U (en) * | 2010-10-29 | 2011-05-11 | 深圳大学 | Heating equipment for steam heating mould |
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