CN201261255Y - Temperature control system for plastic injection molding - Google Patents
Temperature control system for plastic injection molding Download PDFInfo
- Publication number
- CN201261255Y CN201261255Y CNU2008200931484U CN200820093148U CN201261255Y CN 201261255 Y CN201261255 Y CN 201261255Y CN U2008200931484 U CNU2008200931484 U CN U2008200931484U CN 200820093148 U CN200820093148 U CN 200820093148U CN 201261255 Y CN201261255 Y CN 201261255Y
- Authority
- CN
- China
- Prior art keywords
- cooling
- molds
- steam
- cold
- heat source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a cold and heat control system for plastic injection forming, which comprises an injection forming machine, a mold unit, a water-cooling device, a steam-generating device and a cold and heat source valve controller, wherein one end of the cold and heat source valve controller is respectively connected with the water-cooling device and the steam-generating device, and the other end of the cold and heat source valve controller is connected with the mold unit. Before plastic raw material is injected, the cold and heat source valve controller controls steam generated by the steam-generating device to enter a mold cavity of the mold unit for heating, and after the plastic raw material enters the mold cavity of the mold unit, the cold and heat source valve controller controls cold water in the water-cooling device to enter the mold cavity of the mold unit for cooling. Accordingly, the utility model can rapidly adjust the mold temperature in a plastic injection forming process to further greatly improve the quality of plastic products. In addition, the utility model also greatly shortens the production period of the plastic injection forming, improves the production efficiency of the plastic products and decreases the production cost of the plastic products at the same time.
Description
Technical field
The utility model relates to a kind of plastic cement injection molding technology, especially relates to a kind of injection molding cold and hot control system of plastic cement that is used for.
Background technology
Existing plastic cement injection moulding process is to be entered in the screw rod of injection (mo(u)lding) machine by plastic material, and after colloidal sol became liquid state, the plastic material with liquid state was injected to set of molds again, and finally obtained plastic cement products through supercooling, moulding, die sinking, taking-up.Yet existing plastic cement injection product is because designing material and process limitation may produce following insurmountable quality problems:
1, weld mark belongs to the bad order of plastic cement products, and it produces reason and is: in the injection process of plastic material, when flowing mold filling because of colloidal sol in the die cavity of set of molds, because collosol temperature descends, be called weld mark so produce vestige at mating surface.
2, current mark (claiming snake again), the bad order that belongs to plastic cement products, it produces reason: in the injection process of plastic material, because of colloidal sol through the runner of set of molds in the die cavity way of set of molds, collosol temperature descends, front end produces cold burden and combines with heat material in the die cavity, and the vestige of generation is called current mark.
3, contraction distortion, the outward appearance and the dysplasia that belong to product, it produces reason: in the injection process of plastic material, because of colloidal sol enters that temperature is uneven in temperature behind the die cavity, cool time is not enough and cause asynchronous, take out the back and inhale the distortion that factor such as temperature produces at air and be called contraction distortion.
4, stress trace (claiming the gas trace again), the bad order that belongs to plastic cement products, it produces reason: in the injection process of plastic material, because of colloidal sol enters the uneven structure that the die cavity of set of molds is run into different shape in the die cavity, rising at the gas that produces of flowing fast is attached to the vestige that produces on the wall of chamber and is called the stress trace.
5, floating fine, the bad order that belongs to plastic cement products, it produces reason: the common engineering plastic cement is in order to increase product structure intensity and to reduce the contraction problem, can in plastic material, add fibers such as glass fibre or carbon fiber, but in the injection process, because of temperature inequality in the die cavity of set of molds, fiber can be attached on the wall of chamber in various degree, and it is floating fine to cause gloss uneven, defective such as coarse to be called.
6, can't realize highlighted, high gloss, belong to the bad order of plastic cement products, its generation reason is: in the injection process of plastic material, and the cold then low in glossiness of the die cavity of set of molds, the die cavity heat of set of molds then glossiness is good, but easily produces contraction distortion.Cool time long then cost height, die cavity temperature inequality, unstable all can causing do not reach highlighted, the reason of high gloss.
In summary, the cold and hot control technology in the described existing plastic cement injection moulding obviously exists inconvenience and defective, so be necessary to be improved on reality is used.
The utility model content
At above-mentioned defective, the purpose of this utility model is to provide a kind of injection molding cold and hot control system of plastic cement that is used for, and it can adjust mold temperature rapidly in the plastic cement process of injection molding, and then improves the quality of plastic cement products greatly.
To achieve these goals, the utility model provides a kind of injection molding cold and hot control system of plastic cement that is used for, and comprises injection (mo(u)lding) machine, set of molds, water cooling plant, generation device of steam, Cooling and Heat Source valve positioner at least:
This set of molds is installed on the described injection (mo(u)lding) machine, in the plastic cement process of injection molding, plastic material from described injection (mo(u)lding) machine through the runnerless injection of set of molds to the die cavity of set of molds, treat that plastic material is in this die cavity behind the cooling forming, with each mold separation of described set of molds, from described die cavity, take out plastic cement products again;
One end of described Cooling and Heat Source valve positioner is connected with generation device of steam with described water cooling plant respectively, the other end of described Cooling and Heat Source valve positioner is connected with described set of molds, before the injection plastic material, described Cooling and Heat Source valve positioner is controlled the steam that described generation device of steam generates and is entered the die cavity of described set of molds to heat; Enter the die cavity of described set of molds at plastic material after, the cold water that described Cooling and Heat Source valve positioner is controlled in the described water cooling plant enters the die cavity of described set of molds to cool off.
According to cold and hot control system of the present utility model, described water cooling plant comprises cooling tower and water temperature regulater, one end of described cooling tower is connected with described water temperature regulater by cold water pipe, and described water temperature regulater is connected by the low-temperature receiver valve of cold water pipe and described Cooling and Heat Source valve positioner; The other end of described cooling tower realizes that with described injection (mo(u)lding) machine and set of molds ring type is connected respectively by some cold water pipes, so that described injection (mo(u)lding) machine and set of molds are carried out circulating water cooling; And/or
Described generation device of steam comprises steam boiler and steam storage vapour bottle, and described steam boiler is connected with described steam storage vapour bottle by hot steam pipe, and described steam storage vapour bottle is connected with the thermal source valve of described Cooling and Heat Source valve positioner by hot steam pipe.
According to cold and hot control system of the present utility model, described water temperature regulater is controlled at 10～30 ℃ with the temperature of output water in the cooling tower.
According to cold and hot control system of the present utility model, described water temperature regulater maybe should be used for controlling water temperature according to the character of plastic material.
According to cold and hot control system of the present utility model, described steam boiler burns till steam with water, and with this both vapor compression to being to be transported to behind 7～15KG/cm2 air pressure in the described steam storage vapour bottle to store.
According to cold and hot control system of the present utility model, described Cooling and Heat Source valve positioner is connected with a magnetic valve, described magnetic valve is connected with a processor by an electric appliance box, the thermal source valve and the low-temperature receiver valve of this Cooling and Heat Source valve positioner that automaticallyes switch under the control of described processor;
Before the injection plastic material, described Cooling and Heat Source valve positioner is switched to the thermal source valve, and the steam of described steam storage vapour bottle enters the die cavity of described set of molds to heat by hot steam pipe;
After plastic material entered the die cavity of described set of molds, described Cooling and Heat Source valve positioner was switched to the low-temperature receiver valve, and the cold water in the described cooling tower enters the die cavity of described set of molds to cool off by cold water pipe.
According to cold and hot control system of the present utility model, described Cooling and Heat Source valve positioner comprises shell body, piston and driving mechanism:
Be provided with the piston space that is used for ccontaining described piston in the described shell body, the upper and lower correspondence of this piston space be provided with first the heating on/lower channel; The upper and lower of this piston space also correspondence be provided with first the cooling on/lower channel, this first heating upper channel is connected with described set of molds by hot steam pipe, this first heating lower channel is connected with described steam storage vapour bottle by hot steam pipe, this first cooling upper channel is connected with described set of molds by cold water pipe, and this first cooling lower channel is connected with described water temperature regulater by cold water pipe;
Described piston is arranged at the piston space of described shell body, described piston can move in the piston space at shell body under the driving of described driving mechanism, be respectively equipped with second heat tunnel and second cooling duct on this piston, when described piston move in its second heat tunnel and first heating/when lower channel constituted path, the steam of described steam storage vapour bottle entered the die cavity of described set of molds to heat by hot steam pipe; Cool off when described piston moves to its second cooling duct and first/when lower channel constituted path, the cold water in the described cooling tower entered the die cavity of described set of molds to cool off by cold water pipe;
Described driving mechanism is connected with processor by described magnetic valve, electric appliance box, and described driving mechanism moves described piston under the control of described processor.
According to cold and hot control system of the present utility model, described Cooling and Heat Source valve positioner is connected with set of molds with hot steam pipe by a plurality of cold water pipes, and the number of described cold water pipe and hot steam pipe is decided according to the mould number of described set of molds.
According to cold and hot control system of the present utility model, described Cooling and Heat Source valve positioner was controlled the steam that described generation device of steam generates and is entered the die cavity of described set of molds, and rapidly described die cavity is warmed to 130～220 ℃ before the injection plastic material.
According to cold and hot control system of the present utility model, the temperature of heating of the die cavity of described set of molds is decided according to the character or the application of plastic material.
The utility model is realized plastic cement injection moulding process by the cooperation of Cooling and Heat Source valve positioner and injection (mo(u)lding) machine, it is before the injection plastic material, the die cavity that the described Cooling and Heat Source valve positioner control steam that generation device of steam generated enters set of molds is heated, and preferably rapidly described die cavity is warmed to 130～220 ℃; Enter the die cavity of set of molds at plastic material after, the die cavity that the cold water in the described Cooling and Heat Source valve positioner control water cooling plant enters set of molds cools off.Whereby, it can adjust mold temperature rapidly the utility model in the plastic cement process of injection molding, avoided occurring weld mark, current mark, contraction distortion, stress trace, floating fine, can't realize quality problems such as highlighted, high gloss, thereby improve the quality of plastic cement products greatly.In addition, the utility model is owing to can be rapidly heat or cool off the die cavity of set of molds, and it has shortened the injection molding production cycle of plastic cement greatly, thereby has improved the production efficiency of plastic cement products, has reduced the production cost of plastic cement products simultaneously.
Description of drawings
Fig. 1 is the structural representation that the utility model is used for the injection molding cold and hot control system of plastic cement;
Fig. 2 is the structural representation of the preferred cold and hot control system of the utility model;
Fig. 3 is the preferred structure schematic diagram of the Cooling and Heat Source valve positioner of the cold and hot control system of the utility model system.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 shows the structure that the utility model is used for the injection molding cold and hot control system of plastic cement, this cold and hot control system comprises injection (mo(u)lding) machine 10 at least, set of molds 20, Cooling and Heat Source valve positioner 30, water cooling plant 40 and generation device of steam 50, this injection (mo(u)lding) machine 10 is installed set of molds 20 before plastic cement production, in the plastic cement process of injection molding, plastic material is expelled to the die cavity 22 of set of molds 20 from the runner 21 of injection (mo(u)lding) machine 10 through set of molds 20, treat that plastic material is in this die cavity 22 behind the cooling forming, each mold separation with described set of molds 20, from described die cavity 22, take out plastic cement products again, wherein:
Described injection (mo(u)lding) machine 10 includes screw rod 11 at least, and described screw rod 11 is standards bodies of injection (mo(u)lding) machine 10, has functions such as blanking, colloidal sol, injection.Plastic material enters in the screw rod 11 of injection (mo(u)lding) machine 10, and it is liquid that colloidal sol becomes, and is expelled in the die cavity 22 of set of molds 20 by the plastic material of this screw rod 11 with liquid state.
Described set of molds 20 is made up of some moulds, and comprises runner 21 and die cavity 22 in the described set of molds 20, and injection (mo(u)lding) machine 10 plastic material after runner 21 is with hot melt is expelled in the die cavity 22, and plastic material cools off the back and forms plastic cement products in die cavity 22.During actual plastic cement is produced, can be according to the demand difference of plastic cement products shape, this die cavity 22 can adopt different shapes.
Described water cooling plant 40 is connected with Cooling and Heat Source valve positioner 30 by cold water pipe, be used to produce cold water and be transported to the low-temperature receiver valve of Cooling and Heat Source valve positioner 30, under 30 controls of Cooling and Heat Source valve positioner, can cool off set of molds 20 by the cold water in the water cooling plant 40.
Described generation device of steam 50 is connected with Cooling and Heat Source valve positioner 30 by hot steam pipe, be used to produce steam and be transported to the thermal source valve of Cooling and Heat Source valve positioner 30, can be under 30 controls of Cooling and Heat Source valve positioner by the steam in the generation device of steam 50 to set of molds 20 is heated.
Described Cooling and Heat Source valve positioner 30 1 ends are connected with generation device of steam 50 with water cooling plant 40 respectively with hot steam pipe by cold water pipe, and its other end is connected with set of molds 20 with hot steam pipe by cold water pipe.And, described Cooling and Heat Source valve positioner 30 is connected with a magnetic valve, described magnetic valve is connected with a processor by an electric appliance box, the thermal source valve and the low-temperature receiver valve of this Cooling and Heat Source valve positioner 30 of automatic switchover under the control of described processor, described processor can be the computer that is used for industrial production control.
Before the injection plastic material, described Cooling and Heat Source valve positioner 30 is switched to the thermal source valve by processor, and the steam that control generation device of steam 50 is generated enters the die cavity 22 of set of molds 20, so that this die cavity 22 is heated rapidly.
Enter the die cavity 22 of set of molds 20 at plastic material after, described Cooling and Heat Source valve positioner 30 is switched to the low-temperature receiver valve by processor, and the cold water of controlling in the described water cooling plant 40 enters the die cavity 22 of set of molds 20, so that this die cavity 22 is cooled off rapidly.
Preferably, before the injection plastic material, the steam that described Cooling and Heat Source valve positioner 30 control generation device of steam 50 are generated enters the die cavity 22 of set of molds 20, and rapidly described die cavity 22 being warmed to 130～220 ℃, the temperature of heating of the die cavity 22 of described set of molds 20 can be decided according to the character or the application of plastic material.Because the utility model can be adjusted mold temperature rapidly in the plastic cement process of injection molding, avoided occurring weld mark, current mark, contraction distortion, stress trace, floating fine, can't realize quality problems such as highlighted, high gloss, thereby improve the quality of plastic cement products greatly.In addition, the utility model is owing to can be rapidly heat or cool off the die cavity 22 of set of molds 20, and it has shortened the injection molding production cycle of plastic cement greatly, thereby has improved the production efficiency of plastic cement products, has reduced the production cost of plastic cement products simultaneously.
The utility model is used for the injection molding cold and hot control system of plastic cement, and its raising to the plastic cement products quality is mainly reflected in the following aspects:
1, solved the product quality problem of weld mark.
Set of molds 20 of the present utility model is secondary antenatal at each mould, very fast die cavity 22 temperature with set of molds 20 rise to 130～220 ℃, concrete heating-up temperature is decided according to the character or the application of plastic material, make and obtain the temperature insulation when colloidal sol flows filling in the process of injection molding in die cavity 22, be difficult for producing cold burden, can well converge, die sinking is taken out behind the very fast again cooling and shaping, does not have the generation of weld mark.Here so-called each mould time production is meant: a production cycle of plastic cement products, comprise heat, process flow steps such as injection, mold filling, cooling, moulding, die sinking and taking-up.
2, solved the product quality problem of current mark.
Set of molds 20 of the present utility model is secondary antenatal at each mould, very fast die cavity 22 temperature with set of molds 20 rise to 130～220 ℃, make that the runner 21 and the die cavity 22 of set of molds 20 obtains fine insulation in the process of injection molding, be that colloidal sol is obtaining insulation in runner 21 ways, make the difficult foremost cold burden and the hardened layer of producing of the colloidal sol that flows, also just do not have cold burden and hardened layer to enter the die cavity 22 of set of molds 20, die sinking is taken out behind the very fast cooling and shaping, does not just have the generation of current mark.
3, solved the product quality problem of contraction distortion.
Set of molds 20 of the present utility model is secondary antenatal at each mould, very fast die cavity 22 temperature with set of molds 20 rise to 130～220 ℃, make colloidal sol in the process of injection molding can not produce cold burden through the runner 21 of set of molds 20 and the die cavity 22 that enters set of molds 20, make filling speed and density equalization, the pressure loss is little, die sinking is taken out behind the very fast again cooling and shaping, can reduce degree of deformation as far as possible, to guarantee that this degree of deformation is minimum and to belong to received scope.
4, solved the product quality problem of stress trace.
Set of molds 20 of the present utility model is secondary antenatal at each mould, very fast die cavity 22 temperature with set of molds 20 rise to 130～220 ℃, make that the runner 21 and the die cavity 22 of set of molds 20 obtains fine insulation in the process of injection molding, colloidal sol can not produce cold burden and hardened layer, fill smooth and easyly, take high pressure, low speed, pressurize, make colloidal sol when die cavity 22 is filled, be difficult for rolling gas and be attached to the chamber wall in uneven structure, die sinking is taken out behind the very fast again cooling and shaping, promptly removes the stress trace.Described injection (mo(u)lding) machine 10 can be adjusted control injection moulding machined parameters separately by computer when producing, this injection moulding machined parameters is set in computer in advance according to the character and the application of plastic material.The injecting condition machined parameters mainly is divided into pressure, speed, and wherein pressure is used to guarantee that the plastic cement that is expelled to die cavity 22 can not be back to outside runner 21 and the die cavity 22, causes shortcomings such as product shrink, off-dimension.Owing to can adjust the injection moulding machined parameters separately, just whole process of production can be guaranteed and is controlled under the working environment of high pressure, low speed, pressurize.
5, solved the product quality problem of floating fibre.
Set of molds 20 of the present utility model is secondary antenatal at each mould, very fast die cavity 22 temperature with set of molds 20 rise to 130～220 ℃, make set of molds 20 in the process of injection molding runner 21 and die cavity 22 well is incubated and balanced, make the colloidal sol that adds fiber be difficult for solidifying, and directive fiber is difficult for emersion, die sinking is taken out behind the very fast again cooling and shaping, gets final product to such an extent that one has good appearance and do not have floating fine product.
6, solved and to have realized highlighted, the product quality problem of high gloss.
Highlighted, the product of high gloss have relatively high expectations to mould and injection moulding processing conditions, and problems such as weld mark, current mark, contraction distortion, stress trace, floating fibre all can not have.So set of molds 20 of the present utility model is secondary antenatal at each mould, very fast die cavity 22 temperature with set of molds 20 rise to 130～220 ℃, again with stable condition of molding by colloidal sol injection, pressurize, die sinking is taken out behind the very fast again cooling and shaping, can obtain highlighted, the product of high gloss.
Fig. 2 has used the structure that the utility model preferably is used for plastic cement injection molding cold and hot control system, include injection (mo(u)lding) machine 10, set of molds 20, Cooling and Heat Source valve positioner 30 equally, but different with cold and hot control system shown in Figure 1 is, water cooling plant 40 among Fig. 1 specifically is mainly to be made of cooling tower 41 and water temperature regulater 42, generation device of steam 50 among Fig. 1 then specifically is mainly to be made of steam boiler 51 and steam storage vapour bottle 52, wherein:
One end of described cooling tower 41 is connected with water temperature regulater 42 by cold water pipe 60, and described water temperature regulater 42 is connected by the low-temperature receiver valve of cold water pipe 60 and Cooling and Heat Source valve positioner 30.The other end of described cooling tower 41 realizes that with set of molds 20 ring type is connected with injection (mo(u)lding) machine 10 respectively by some cold water pipes 80, so that institute's injection (mo(u)lding) machine 10 and set of molds 20 are carried out circulating water cooling.So-called circulating water cooling is meant, after with the cold water of normal temperature in the cooling tower 41 set of molds 20 being cooled off, with the cold water of mistake by cold water pipe 80 be back to cooling tower 41 cool off after utilization again; Perhaps, after with steam set of molds 20 being heated, condense into water, and utilize again after being expelled back into cooling tower 41 and cooling off by cold water pipe 80 with the steam of crossing.
Described water temperature regulater 42 maybe should be used for controlling water temperature according to the character of plastic material, generally the temperature of output water in the cooling tower 41 is controlled in 10～30 ℃ the normal temperature scope.After plastic material entered the die cavity 22 of described set of molds 20, described Cooling and Heat Source valve positioner 30 was switched to the low-temperature receiver valve, and the cold water in the described cooling tower 41 enters the die cavity 22 of set of molds 20 to cool off by cold water pipe 60.Water temperature regulater 42 is extremely important, and its steady operation could guarantee cooling effect, guarantees constant product quality.When cooling tower 41 has fan coolling, then water temperature regulater 42 must and cooling tower 41 keep segment distances, blow too moistly with the fan of the water tower 41 of avoiding being cooled.
Described steam boiler 51 is connected with steam storage vapour bottle 52 by hot steam pipe 70, and described steam storage vapour bottle 52 is connected with the thermal source valve of Cooling and Heat Source valve positioner 30 by hot steam pipe 70.Described steam boiler 51 has coal, and fuel oil type fires combustion systems such as electric formula, and steam boiler 51 burns till steam with water, and with this both vapor compression to being to be transported to storage in the steam storage vapour bottle 52 behind 7～15KG/cm2 air pressure.Steam storage vapour bottle 52 is independent matured products, does not run out of steam if fruit has steam storage vapour bottle 52 might cause the time of steaming out to go up steam boiler 51.Before the injection plastic material, described Cooling and Heat Source valve positioner 30 is switched to the thermal source valve, the die cavity 22 that the steam of described steam storage vapour bottle 52 enters set of molds 20 by hot steam pipe 70 preferably is warmed to 130～220 ℃ with described die cavity 22 rapidly to heat.
Described Cooling and Heat Source valve positioner 30 is connected with set of molds 20 with hot steam pipe 70 by a plurality of cold water pipes 60, and the number of described cold water pipe 60 and hot steam pipe 70 is decided according to the mould number of set of molds 20, in other words, all can be connected at least one cold water pipe 60 and a hot steam pipe 70 on each mould of described set of molds 20.
Present embodiment forms the injection molding cyclic process technology of plastic cement fast by the cooperation of Cooling and Heat Source valve positioner 30 and injection (mo(u)lding) machine 10, specifically comprises the steps:
1) step of heating: before the injection plastic material, steam boiler 51 produces hot vapour, is stored in the steam storage vapour bottle 52; Switch to the thermal source valve by Cooling and Heat Source valve positioner 30, the steam that allows steam store up in the vapour bottle 52 enters the die cavity 22 of set of molds 20 rapidly, with very fast die cavity 22 is warming up to 130～220 ℃.
2) injecting step: plastic material enters in the screw rod 11 of injection (mo(u)lding) machine 10, and it is liquid that colloidal sol becomes, and plastic material is expelled in the die cavity 22 of set of molds 20 after the runner 21 of set of molds 20 is with hot melt again
3) cooling, moulding, die sinking, taking-up step: treat that plastic material is in die cavity 22 behind the cooling forming, make each mold separation of set of molds 20, again the plastic cement products of the formed solid die cavity 22 from set of molds 20 is taken out, promptly finish the injection molding process of plastic cement one time.
Fig. 3 has used the structure of the preferred Cooling and Heat Source valve positioner of the cold and hot control system of the utility model, and described Cooling and Heat Source valve positioner 30 comprises shell body 31, piston 32 and driving mechanism.Described driving mechanism preferably mainly comprise drive rod 331 and cylinder 332, the driving mechanism of described Cooling and Heat Source valve positioner 30 is connected with a magnetic valve, described magnetic valve is connected with a processor by an electric appliance box, and described driving mechanism mobile piston 32 under the control of processor.This processor can be the computer equipment of an industrial controlling, and prestores the injection molding machined parameters of plastic cement in this computer, at thermal source valve and the low-temperature receiver valve of described computer, wherein according to this Cooling and Heat Source valve positioner 30 of automatic switchover of this machined parameters:
Be provided with the piston space 311 that is used for ccontaining described piston 32 in the described shell body 31, the upper and lower correspondence of this piston space 311 is provided with the first heating upper channel A1 and the first heating lower channel A2; The upper and lower of this piston space 311 also correspondence is provided with the first cooling upper channel B1 and the first cooling lower channel B2, this first heating upper channel A1 is connected with set of molds 20 by hot steam pipe 70, this first heating lower channel A2 is connected with described steam storage vapour bottle 52 by hot steam pipe 70, this first cooling upper channel B1 is connected with set of molds 20 by cold water pipe 60, and this first cooling lower channel B2 is connected with water temperature regulater 42 by cold water pipe 60.
Described piston 32 is arranged in the piston space 311 of shell body 31, described piston 32 can move in the piston space 311 at shell body 31 under the driving of described driving mechanism, when control cylinder 332 at described computer according to default injection moulding machined parameters allows drive rod 331 advance, when allow drive rod 331 move back, and then realize that promoting piston 32 by drive rod 331 moves in piston space 311.Be respectively equipped with the second heat tunnel A3 and the second cooling duct B3 on this piston 32, when described piston 32 move in its second heat tunnel A3 and first heating/when lower channel A1 and A2 constituted path, the steam of described steam storage vapour bottle 52 entered the die cavity 22 of set of molds 20 to heat by hot steam pipe 70; When piston 32 move in its second cooling duct B3 and first cooling/when lower channel B1 and B2 constituted path, the cold water in the described cooling tower 41 entered the die cavity 22 of set of molds 20 to cool off by cold water pipe 60.
The structure of described Cooling and Heat Source valve positioner 30 is not limited to exemplary construction shown in Figure 3, as long as it can realize switching the function of thermal source valve and low-temperature receiver valve, promptly before the injection plastic material, described Cooling and Heat Source valve positioner 30 is switched to the thermal source valve and carries out mold heated, at this moment the low-temperature receiver valve closing.Enter the die cavity 22 of set of molds 20 at plastic material after, described Cooling and Heat Source valve positioner 30 is switched to the low-temperature receiver valve and carries out mold cools down, at this moment the thermal source valve closing.For example, Cooling and Heat Source valve positioner 30 can also be the valve mechanism of similar water tap etc.
In summary, the utility model is realized plastic cement injection moulding process by the cooperation of Cooling and Heat Source valve positioner and injection (mo(u)lding) machine, it is before the injection plastic material, the die cavity that the described Cooling and Heat Source valve positioner control steam that generation device of steam generated enters set of molds is heated, and preferably rapidly described die cavity is warmed to 130～220 ℃; Enter the die cavity of set of molds at plastic material after, the die cavity that the cold water in the described Cooling and Heat Source valve positioner control water cooling plant enters set of molds cools off.Whereby, it can adjust mold temperature rapidly the utility model in the plastic cement process of injection molding, avoided occurring weld mark, current mark, contraction distortion, stress trace, floating fine, can't realize quality problems such as highlighted, high gloss, thereby improve the quality of plastic cement products greatly.In addition, the utility model is owing to can be rapidly heat or cool off the die cavity of set of molds, and it has shortened the injection molding production cycle of plastic cement greatly, thereby has improved the production efficiency of plastic cement products, has reduced the production cost of plastic cement products simultaneously.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (5)
1, a kind of injection molding cold and hot control system of plastic cement that is used for is characterized in that, comprises injection (mo(u)lding) machine, set of molds, water cooling plant, generation device of steam, Cooling and Heat Source valve positioner at least:
This set of molds is installed on the described injection (mo(u)lding) machine;
One end of described Cooling and Heat Source valve positioner is connected with generation device of steam with described water cooling plant respectively, and the other end of described Cooling and Heat Source valve positioner is connected with described set of molds.
2, cold and hot control system according to claim 1, it is characterized in that, described water cooling plant comprises cooling tower and water temperature regulater, one end of described cooling tower is connected with described water temperature regulater by cold water pipe, and described water temperature regulater is connected by the low-temperature receiver valve of cold water pipe and described Cooling and Heat Source valve positioner; The other end of described cooling tower realizes that with described injection (mo(u)lding) machine and set of molds ring type is connected respectively by some cold water pipes, so that described injection (mo(u)lding) machine and set of molds are carried out circulating water cooling; And/or
Described generation device of steam comprises steam boiler and steam storage vapour bottle, and described steam boiler is connected with described steam storage vapour bottle by hot steam pipe, and described steam storage vapour bottle is connected with the thermal source valve of described Cooling and Heat Source valve positioner by hot steam pipe.
3, cold and hot control system according to claim 2, it is characterized in that, described Cooling and Heat Source valve positioner is connected with a magnetic valve, described magnetic valve is connected with a processor by an electric appliance box, the thermal source valve and the low-temperature receiver valve of this Cooling and Heat Source valve positioner that automaticallyes switch under the control of described processor.
4, cold and hot control system according to claim 3 is characterized in that, described Cooling and Heat Source valve positioner comprises shell body, piston and driving mechanism:
Be provided with the piston space that is used for ccontaining described piston in the described shell body, the upper and lower correspondence of this piston space be provided with first the heating on/lower channel; The upper and lower of this piston space also correspondence be provided with first the cooling on/lower channel, this first heating upper channel is connected with described set of molds by hot steam pipe, this first heating lower channel is connected with described steam storage vapour bottle by hot steam pipe, this first cooling upper channel is connected with described set of molds by cold water pipe, and this first cooling lower channel is connected with described water temperature regulater by cold water pipe;
Described piston is arranged at the piston space of described shell body, described piston can move in the piston space at shell body under the driving of described driving mechanism, be respectively equipped with second heat tunnel and second cooling duct on this piston, when described piston move in its second heat tunnel and first heating/when lower channel constituted path, the steam of described steam storage vapour bottle entered the die cavity of described set of molds to heat by hot steam pipe; Cool off when described piston moves to its second cooling duct and first/when lower channel constituted path, the cold water in the described cooling tower entered the die cavity of described set of molds to cool off by cold water pipe;
Described driving mechanism is connected with processor by described magnetic valve, electric appliance box, and described driving mechanism moves described piston under the control of described processor.
5, cold and hot control system according to claim 2 is characterized in that, described Cooling and Heat Source valve positioner is connected with set of molds with hot steam pipe by a plurality of cold water pipes, and the number of described cold water pipe and hot steam pipe is decided according to the mould number of described set of molds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200931484U CN201261255Y (en) | 2008-04-02 | 2008-04-02 | Temperature control system for plastic injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200931484U CN201261255Y (en) | 2008-04-02 | 2008-04-02 | Temperature control system for plastic injection molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201261255Y true CN201261255Y (en) | 2009-06-24 |
Family
ID=40807721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200931484U Expired - Fee Related CN201261255Y (en) | 2008-04-02 | 2008-04-02 | Temperature control system for plastic injection molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201261255Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407078A (en) * | 2013-07-31 | 2013-11-27 | 成都万顺达模具零件有限公司 | Forming mold for fan blades |
| CN104214756A (en) * | 2013-06-01 | 2014-12-17 | 黄金虎 | High-frequency induction steam generation device and die temperature regulating system with same |
| CN104571201A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electricity multi-channel temperature controller |
| CN104571200A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electricity multi-channel controller |
| CN104552855A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electric multi-channel voltage controller |
| CN104597941A (en) * | 2014-12-31 | 2015-05-06 | 李久伦 | Main controller of hot runner temperature control system |
| CN104596831A (en) * | 2014-12-31 | 2015-05-06 | 聚光科技(杭州)股份有限公司 | Gas pretreatment device and gas pretreatment method |
| CN105082489A (en) * | 2014-05-13 | 2015-11-25 | 汉达精密电子(昆山)有限公司 | Temperature control system |
| CN105128298A (en) * | 2015-08-05 | 2015-12-09 | 艾立东 | Temperature adjusting system for plastic mold |
| CN105172080A (en) * | 2015-10-08 | 2015-12-23 | 上海交通大学 | Cooling control device and method for injection mold |
| CN107824761A (en) * | 2017-11-14 | 2018-03-23 | 宁波图冠精密模具有限公司 | A kind of speed changer die casting |
-
2008
- 2008-04-02 CN CNU2008200931484U patent/CN201261255Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214756A (en) * | 2013-06-01 | 2014-12-17 | 黄金虎 | High-frequency induction steam generation device and die temperature regulating system with same |
| CN104214756B (en) * | 2013-06-01 | 2016-12-28 | 黄金虎 | High-frequency induction steam raising plant and utilize its mould thermoregulating system |
| CN103407078A (en) * | 2013-07-31 | 2013-11-27 | 成都万顺达模具零件有限公司 | Forming mold for fan blades |
| CN103407078B (en) * | 2013-07-31 | 2016-03-30 | 成都万顺达模具零件有限公司 | Fan blade mould |
| CN105082489A (en) * | 2014-05-13 | 2015-11-25 | 汉达精密电子(昆山)有限公司 | Temperature control system |
| CN104596831A (en) * | 2014-12-31 | 2015-05-06 | 聚光科技(杭州)股份有限公司 | Gas pretreatment device and gas pretreatment method |
| CN104597941A (en) * | 2014-12-31 | 2015-05-06 | 李久伦 | Main controller of hot runner temperature control system |
| CN104552855A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electric multi-channel voltage controller |
| CN104571200A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electricity multi-channel controller |
| CN104571201A (en) * | 2014-12-31 | 2015-04-29 | 李久伦 | Three-phase electricity multi-channel temperature controller |
| CN104596831B (en) * | 2014-12-31 | 2017-08-11 | 聚光科技(杭州)股份有限公司 | Gas pretreatment device and method |
| CN105128298A (en) * | 2015-08-05 | 2015-12-09 | 艾立东 | Temperature adjusting system for plastic mold |
| CN105172080A (en) * | 2015-10-08 | 2015-12-23 | 上海交通大学 | Cooling control device and method for injection mold |
| CN107824761A (en) * | 2017-11-14 | 2018-03-23 | 宁波图冠精密模具有限公司 | A kind of speed changer die casting |
| CN107824761B (en) * | 2017-11-14 | 2019-07-30 | 宁波图冠精密模具有限公司 | A kind of speed changer die casting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201261255Y (en) | Temperature control system for plastic injection molding | |
| CN103085247B (en) | A kind of Steam Heating rapid thermal circulation injection mould | |
| CN103552223B (en) | A kind of injection mold Fast Heating and cooling means and system | |
| CN106541546B (en) | A kind of fast temperature adjusting method of temperature control injection mold | |
| CN1853903A (en) | Jet forming system and method | |
| CN101913225A (en) | Spraying-free high-surface gloss traceless injection molding process for rear cover of digital camera | |
| CN102785338B (en) | Highlight injection mould heating and cooling device and heating and cooling method thereof | |
| CN201261256Y (en) | Temperature control system for plastic injection molding | |
| CN203543045U (en) | Quick heating and cooling system of injection mould | |
| CN101531052B (en) | An energy-saving type highlight non-trace injection mold temperature control system | |
| KR101264893B1 (en) | Injection Mold Die of Air Cooling System And Method for The Same | |
| CN101559632A (en) | Mold core cooling device | |
| CN101100106A (en) | Plastic mould rapid heating and cooling temperature controlling device | |
| CN101531053A (en) | An isolation electrical heating high light injection mold temperature control system | |
| CN103317692B (en) | A kind of die temperance control device with miniature boiler | |
| CN101559641A (en) | Injection mold system | |
| CN201240042Y (en) | High gloss injection mold | |
| CN103817893A (en) | Temperature control system of injection mold | |
| CN204997962U (en) | Structure of product weld bond is eliminated to anxious heat of injection mold rapid cooling | |
| CN203092982U (en) | Steam-heating rapid heat cycle plastic injection mould | |
| CN210590446U (en) | Plastic mold capable of being rapidly cooled and formed | |
| CN102825732A (en) | Mould gating system | |
| CN102744844A (en) | Highlight die and temperature control system thereof | |
| CN205219712U (en) | Notes blow forming die | |
| CN201399874Y (en) | Rapid temperature changing injection mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20120402 |