CN100480018C - Pressure controlling device for jetting unit of forming die - Google Patents
Pressure controlling device for jetting unit of forming die Download PDFInfo
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- CN100480018C CN100480018C CNB031284531A CN03128453A CN100480018C CN 100480018 C CN100480018 C CN 100480018C CN B031284531 A CNB031284531 A CN B031284531A CN 03128453 A CN03128453 A CN 03128453A CN 100480018 C CN100480018 C CN 100480018C
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Abstract
The present invention is pressure controller for jetting mold unit. The jetting mold unit includes at least one fixed mold kernel and one movable mold kernel to form one mold cavity in between. The movable mold kernel may be shifted axially to alter the size of the mold cavity so as to form molded object with thickness tolerance in certain range. The pressure controller includes one piezoelectric actuator, one pressure sensor, and one operation processor to store one ideal pressure curve. The piezoelectric actuator is connected to the movable mold kernel for axial motion and has reciprocating feeding precision much smaller than the thickness tolerance. The pressure sensor is connected to the fixed mold kernel to sense the pressure of the mold cavity. The operation processor is connected to the piezoelectric actuator and the pressure sensor to regulate the pressure of the mold cavity.
Description
Technical field
The present invention relates to a kind of device for injection moulding, particularly relate to a kind of pressure control device that can be made into the ejection shaping die unit of the uniform ejection formation thing of density.
Background technology
Fig. 1 is the pressue-graph of summary description die cavity pressure and molding time relation.As shown in Figure 1, for but existing Jet forming machine injects one by one fixedly in the process in die, the formed die cavity of a mavable module core with plastics, the internal pressure of this die cavity and time relation curve map, generally speaking, the pressure of this die cavity changes can divide into the Phase I that shoots material, compression stage II, reach three phases such as pressurize formative stage III, and at the pressurize formative stage, it is an ejection formation thing that plastics can begin hardened forming, therefore, the pressure in this die cavity also can descend gradually.
And, pressure in the quality of ejection formation thing and its moulding excessively changes confidential relation, so, in fact can by this fixedly the die side install a pressure sensor, and when writing down each ejection formation thing ejection formation, pressure curve in this die cavity changes, so, utilize the quality of analyzing each ejection formation thing, the pressure history of promptly can quality preferable ejection formation thing is as a desired pressure curve (ideal pressure curve), and can supply follow-up ejection formation operation reference, so as to continuing to produce high-quality ejection formation thing.
Fig. 2 is the existing half-finished cutaway view of a kind of optical mirror slip.As shown in Figure 2, in an existing ejection formation process, the raw material of optical mirror slip 1 is in the die cavity that size is maintained fixed, and uncontrollable adjustment raw material changes in the pressure of the inherent pressurize formative stage of die cavity, so uncontrollable this optical mirror slip 1 ejection formation quality each time.Moreover, its running channel is arranged on the side of die cavity, so, the pressure distribution of this optical mirror slip 1 on transverse direction and inhomogeneous (running channel inject a little pressure will be) when shooting material for the highest, cause the compact density inequality of this optical mirror slip 1, thereby can influence the physical optics character after this optical mirror slip 1 moulding.
Fig. 3 is the assembled sectional view of the employed die unit of existing a kind of secondary compacting journey, Fig. 4 is the assembled sectional view of this die unit, this secondary compacting Cheng Jinhang mold closing for the second time is described, dwindling die cavity, and Fig. 5 is the made half-finished cutaway view of an optical mirror slip of this secondary compacting journey.Secondary compacting journey shown in Fig. 3,4,5, it is to cooperate a die unit that comprises a movable side form seat board 2, a fixation side die holder plate 3, a compression spring mechanism 4 and two optics dies 5,6 to operate.This secondary compacting Cheng Shixian carries out the mold closing first time, and make between these optics die 5,6 opposing end surfaces form the expansion die cavity 7 that a thickness is t+ △ t (so as to reduce before an optical mirror slip 8 moulding thickness than), then, quantitative plastics are injected this die cavity 7 that fills up expansion.Then, utilize this compression spring mechanism 4 to carry out the mold closing second time, make the thickness of this die cavity 7 push the thickness t that is contracted to moulding that this optical mirror slip 8 is desired, and unnecessary plastics are squeezed in the overflow launder (figure does not show).So, compare the shortcoming that is produced though can improve this optical mirror slip 8 because of thickness, still, this secondary compacting journey still has following disappearance:
One, this mold closing action second time can only spacing be controlled this die cavity 7 sizes, and this die cavity 7 of still uncontrollable adjustment changes at the pressure of pressurize formative stage.
Two, this secondary compacting journey penetrates back segment at plastics, promptly carry out the compressed action of mold closing for the second time simultaneously, so that unnecessary plastics are squeezed in this overflow launder, therefore, plastics can produce flowing of transverse direction in the process that is shaped to this optical mirror slip 8, (pressure injected a little of running channel will be for the highest so also can to cause the pressure distribution inequality of this optical mirror slip 8 on transverse direction, and the pressure of overflow launder inlet point will be for minimum), and cause the compact density inequality of this optical mirror slip 8, thereby can influence the physical optics character after these optical mirror slip 8 moulding.
Three, unnecessary plastics can be shaped to an overflow launder waste material 801 after these optical mirror slip 8 moulding, not only cause the waste of plastics, also cause the inconvenience of reprocessing.
Summary of the invention
A purpose of the present invention, promptly at the pressure control device that a kind of ejection shaping die unit is provided, this die unit comprises a movable link at least, one fixed component, but one is arranged at the mavable module core in this movable link, reach a fixedly die that is arranged in this fixed component, but be somebody's turn to do mavable module core and should fixedly form a die cavity between the die, inject formation one article shaped in this die cavity for a moulding material, but and should mavable module core can along one axially with respect to this fixedly die move, this pressure control device comprises: a piezo-activator, be connected but be arranged in this movable link and with this mavable module core, and but this piezo-activator can axially drive and should move by mavable module core along this, one pressure sensor, be arranged in this fixed component and with this fixedly die be connected, and this pressure sensor via this fixedly die measure the pressure of this die cavity, and export a signal, an and arithmetic processor, respectively with this piezo-activator, this pressure sensor electrically connects, and in order to store a desired pressure curve, this arithmetic processor receives this signal, and with this desired pressure curve ratio, after handling computing, drive and to move by mavable module core but drive this piezo-activator, to adjust the pressure in this die cavity.
According to above-mentioned purpose, the pressure control device of a kind of ejection shaping die unit of another kenel of the present invention, this die unit comprises a movable link at least, one fixed component, but one is arranged at the mavable module core in this fixed component, reach a fixedly die that is arranged in this movable link, but be somebody's turn to do mavable module core and should fixedly form a die cavity between the die, inject formation one article shaped in this die cavity for a moulding material, but and should mavable module core can along one axially with respect to this fixedly die move, this pressure control device comprises: a piezo-activator, be connected but be arranged in this fixed component and with this mavable module core, and but this piezo-activator can axially drive and should move by mavable module core along this, one pressure sensor, be arranged in this movable link and with this fixedly die be connected, and this pressure sensor via this fixedly die measure the pressure of this die cavity, and export a signal, an and arithmetic processor, respectively with this piezo-activator, this pressure sensor electrically connects, and in order to store a desired pressure curve, this arithmetic processor receives this signal, and with this desired pressure curve ratio, after handling computing, drive and to move by mavable module core but drive this piezo-activator, to adjust the pressure in this die cavity.
Another object of the present invention is to provide a kind of die unit, in a Jet forming machine, use, one moulding material is formed an article shaped, this die unit comprises: a fixed component, one movable link, be provided with this fixed component opposition, one fixing die is arranged in this fixed component, but a mavable module core, be arranged in this movable link, and and this fixedly form a die cavity between the die, a piezo-activator is arranged in this movable link, but and be connected with an end of this mavable module core, but so that should mavable module core along one axially with respect to this fixedly die move, an and pressure sensor is arranged in this fixed component, and with this fixedly an end of die be connected, in order to the pressure in this die cavity of sensing and export a signal.
According to above-mentioned another purpose, a kind of die unit of another kenel of the present invention, in a Jet forming machine, use, one moulding material is formed an article shaped, this die unit comprises: a fixed component, one movable link is provided with this fixed component opposition, a fixing die, be arranged in this movable link, but a mavable module core is arranged in this fixed component, and and this fixedly form a die cavity between the die, one piezo-activator, be arranged in this fixed component, but and be connected with an end of this mavable module core, but so that should mavable module core along one axially with respect to this fixedly die move, an and pressure sensor, be arranged in this movable link, and with this fixedly an end of die be connected, in order to the pressure in this die cavity of sensing and export a signal.
A further object of the present invention is to provide a kind of Jet forming machine, in order to a moulding material is formed an article shaped, comprise: a bearing base, one sandwich mold unit, be arranged on this bearing base, has a fixation side board fetching plate, an and movable side board fetching plate that is provided with this fixation side board fetching plate opposition, an aforesaid die unit, be arranged between this fixation side board fetching plate and this movable side board fetching plate, and the fixed component of this die unit is to be fixedly arranged on this fixation side board fetching plate, the movable link of this die unit is to be fixedly arranged on this movable side board fetching plate, one driver element, be arranged on this bearing base, can drive this movable side board fetching plate moves, so that this movable link is combined closely with this fixed component or is separated, one unit that shoots material, be arranged on this bearing base, and this moulding material provided to the die cavity of this die unit, an and arithmetic processor, in it, store a desired pressure curve, and electrically connect with the piezo-activator of this die unit and pressure sensor and to constitute a pressure control device, in the time of in this moulding material injects this die cavity, this pressure sensor measures this die cavity internal pressure and exports a signal to this arithmetic processor, this arithmetic processor according to this this signal of desired pressure curve processing computing after, modulate this piezo-activator and put on the interior pressure of this die cavity, make each article shaped all form with identical pressure curve.
Description of drawings
The present invention is described in detail below in conjunction with drawings and Examples:
Fig. 1 is the relation curve schematic diagram of a kind of die cavity pressure and molding time.
Fig. 2 is the existing half-finished cutaway view of a kind of optical mirror slip.
Fig. 3 is the assembled sectional view of the employed die unit of existing a kind of secondary compacting journey.
Fig. 4 is the assembled sectional view of this die unit, this secondary compacting Cheng Jinhang mold closing for the second time is described, to dwindle die cavity.
Fig. 5 is the made half-finished cutaway view of an optical mirror slip of this secondary compacting journey.
Fig. 6 is that the present invention one first embodiment is arranged at the schematic diagram on the Jet forming machine.
Fig. 7 is that the system of this first embodiment links schematic diagram.
Fig. 8 is the die unit of this first embodiment and this Jet forming machine, the assembled sectional view of sandwich mold unit.
Fig. 9 is the local enlarged diagram of Fig. 8.
Figure 10 is the schematic diagram () of this first embodiment moulding, one optical mirror slip.
Figure 11 is the schematic diagram (two) of this this optical mirror slip of first embodiment moulding.
Figure 12 is the assembled sectional view of the present invention one second embodiment and a die unit.
Figure 13 is the assembled sectional view of the die unit of the present invention 1 the 3rd embodiment.
The specific embodiment
Before proposing detailed description, be noted that in the following description similarly assembly is to represent with identical numbering.
Fig. 6 is that the present invention one first embodiment is arranged at the schematic diagram on the Jet forming machine, Fig. 7 is that the system of this first embodiment links schematic diagram, Fig. 8 is the die unit of this first embodiment and this Jet forming machine, the assembled sectional view of sandwich mold unit, and Fig. 9 is the local enlarged diagram of Fig. 8.Consult Fig. 6,7,8,9, the pressure control device 30 of the ejection shaping die unit of first embodiment of the invention is to use with a Jet forming machine 100 collocation, and, this Jet forming machine 100 includes a bearing base 110, and is arranged at the unit 10 that shoots material, a die unit 20, on this bearing base 110 and is arranged at sandwich mold unit 40, on this bearing base 110 and is arranged at a driver element 50 on this bearing base 110 and a push rod 60.This sandwich mold unit 40 has a fixation side board fetching plate 41, and a movable side board fetching plate 42 that is provided with this fixation side board fetching plate 41 opposition.This die unit 20 is arranged between this fixation side board fetching plate 41 and this movable side board fetching plate 42, and, one fixed component 21 of this die unit 20 is to be fixedly arranged on this fixation side board fetching plate 41, and a movable link 22 of this die unit 20 is to be fixedly arranged on this movable side board fetching plate 42.This driver element 50 can drive this movable side board fetching plate 42 and move back and forth towards this fixation side board fetching plate 41, and make this movable side board fetching plate 42 near or away from this fixation side board fetching plate 41, so that the fixed component 21 of this die unit 20 is combined closely with movable link 22 or separated.This die unit 20 comprises fixedly die 23 of this fixed component 21, this movable link 22,, but an and mavable module core 24.This fixed component 21 comprises a cavity adaptor plate 211 and a fixation side template 212.This movable link 22 comprise a core adaptor plate 221, a mould pin 222, a board 223,
One movable side template 224, at least one liftout plate 225, a knock pin 226, a linear axes 227, a sliding bearing 228 and a resetting spring 229.These liftout plates 225 are to be arranged between this core adaptor plate 221 and this board 223, the push rod 60 of this Jet forming machine 100 can promote these liftout plates 225 and move towards this fixation side template 212, and this resetting spring 229 then can be with these liftout plate 225 reverse pushed home.
As shown in Figure 8, this cavity adaptor plate 211 is to be installed on this fixation side board fetching plate 41, and this core adaptor plate 221 is to be arranged at along an axial x in contrast to this cavity adaptor plate 211 on this movable side board fetching plate 42.This fixation side template 212 is installed on this cavity adaptor plate 211 and towards this core adaptor plate 221, and this movable side template 224 is installed on this core adaptor plate 221 and in contrast to this fixation side template 212.Should be fixedly die 23 be installed on this fixation side template 212 and towards this core adaptor plate 221, but and should mavable module core 24 be installed on this movable side template 224 and in contrast to this fixing die 23, wherein, but this fixedly can form a die cavity 25 that enlarges between die 23 and opposing end surface that should mavable module core 24.Preferably, more be provided with this board 223 and this mould pin 222 between this movable side template 224 and this core adaptor plate 221.This die cavity 25 can inject a moulding material 11 (see figure 10)s for this unit 10 that shoots material, and, mavable module core 24 can die 23 moves relative to being somebody's turn to do fixedly along this axial x but be somebody's turn to do, widen this die cavity 25 so that extruding is dwindled/loosened, and make this moulding material 11 form an article shaped 12 (seeing Figure 11) that needs shape and density.In the first embodiment of the present invention, this moulding material 11 is that a kind of plastics and this article shaped 12 are an optical mirror slip, and this article shaped 12 has a thickness acceptable tolerance on this axial x.Generally speaking, the thickness acceptable tolerance standard of this article shaped 12 is between ± 0.01mm～0.05mm.This pressure control device 30 comprises: piezo-activator a 31 (piezoelectric actuator, abbreviation PZA), a pressure sensor (pressure sensor) 32, an and arithmetic processor (processor) 33, wherein this arithmetic processor 33 has a charge amplifier (charge amplifier) 331, one simulation/digital converter (A/Dconverter) 332, and a CPU (CPU) 333.
As shown in Figure 8, this board 223 has one first hole 2231 and one second hole 2241 that is communicated with respectively with this movable side template 224, and this core adaptor plate 221, this mould pin 222 form one with this board 223 and eject space 2232 for these liftout plate 225 settings, but being somebody's turn to do mavable module core 24 and this piezo-activator 31 is placed in this first and second hole 2231,2241, and these piezo-activator 31 1 ends are fixed in this liftout plate 225, but the other end be with this mavable module core 24 in contrast to this fixedly an end of die 23 be connected.In the first embodiment of the present invention, this piezo-activator 31 is counter-rotating piezo-electric effects (converse piezoelectric effect) of utilizing piezoelectric but drives and should move along this axial x by mavable module core 24.Therefore, the voltage that is subjected to different sizes when this piezo-activator 31 is done the time spent, but this piezo-activator 31 can drive and should move by mavable module core 24 along this axial x, for example, when providing positive voltage for this piezo-activator 31, increase the pressure in this die cavity 25 but this piezo-activator 31 is pushed mavable module core 24, when providing negative voltage for this piezo-activator 31, but this piezo-activator 31 draws and moves back this mavable module core 24 so that reduce pressure in this die cavity 25.In addition, this piezo-activator 31 has the reciprocating feed precision of a fine setting, and this reciprocating feed precision is the acceptable tolerance less than these article shaped 12 thickness, and in first embodiment of the invention, the reciprocating feed precision of this piezo-activator 31 is 2.4nm.
This pressure sensor 32 is to be placed in the hole 213 of this fixation side template 212, but its pressure sensor end is borrowed a bolt 321 with this fixedly die 23 be connected in contrast to an end of this mavable module core 24.This pressure sensor 32 can be via this fixedly strain of die 23 on this axial x, and the pressure in this die cavity 25 of real-time sensing is also exported a voltage signal.In first embodiment, this pressure sensor 32 is its polarization charge values of direct piezoelectricity effect (direct piezoelctric effect) sensing of utilizing piezoelectric.
This charge amplifier 331 is to be electrically connected between this pressure sensor 32 and this analog/digital converter 332.These charge amplifier 331 receptions and amplification are then exported one and are amplified voltage signal from the voltage signal of this pressure sensor 32.
This analog/digital converter 332 is to electrically connect with this CPU 333, and it receives from the amplification voltage signal of this charge amplifier 331 and converts a digital signal to.
Have more a storage assembly (figure does not show) in this CPU 333, can store a known desired pressure curve, and this CPU 333 is connected with this piezo-activator 31 and this analog/digital converter 332 respectively.This CPU 333 is handled the digital signal that receives, and with the computing of desired pressure curve comparison, but and export suitable voltage and drive this piezo-activator 31 and drive and should move by mavable module cores 24.Further, this pressure control device 30 is adjusted the pressure size in this die cavity 25, so that pressure in this die cavity 25 and known desired pressure curve are complementary.
Whereby, consult Fig. 7,10,11, the present invention before this article shaped 12 of ejection formation, but drive earlier this piezo-activator 31 should mavable module core 24 with this fixedly die 23 separate, enlarging this die cavity 25, and inject for this moulding material 11 of quantitative volume.Then, but drive this piezo-activator 31 again and should mavable module core 24 move near fixing die 23.Then, the pressure in this this die cavity 25 of piezo-activator 31 modulation of this pressure control device 30 controls makes the pressure in this die cavity 25, during this moulding material 11 is moulded, matches with known desired pressure curve.But and push equably in the process of this moulding material 11 utilizing this piezo-activator 31 to drive these mavable module cores 24, this arithmetic processor 33 can be at any time according to the force value signal (or voltage signal) and known desired pressure curve comparison of this pressure sensor 32, but and finely tune this piezo-activator 31 drive these mavable module cores 24 the amount of feeding (but but not only can make should mavable module core 24 with fixing die 23 close also can make this mavable module core 24 and fixedly die 23 away from), to change the pressure size in this die cavity 25, pressure in this die cavity 25 are changed can be at any time and the desired pressure curves.Therefore, the present invention can reappear the desired pressure curve in the process of each ejection formation, and it is all identical effectively to control this article shaped 12 ejection formation quality each time.
Via above explanation, can again advantage of the present invention be summarized as follows:
One, the present invention is in the ejection formation process of this article shaped 12, from compression stage, can remove to control the pressure of adjusting in this die cavity 25 according to the desired pressure curve at any time and change, so the present invention can effectively control this article shaped 12 all identical production quality each time.In addition, in these piezo-activator 31 processes of fine setting, because the size (10-9m) of the reciprocating feed precision of this piezo-activator 31 is very less than the thickness acceptable tolerance (10-5m) of this article shaped 12, and reach quadruplicate gap, therefore, the present invention can not influence the final compact dimensions precision of this article shaped 12 fully yet when adjusting these die cavity 25 pressure.
Two, the present invention is after treating that this quantitative moulding material 11 is injected in this die cavity 25 of expansion, should equably this moulding material 11 be exerted pressure along this axial x by mavable module core 24 but utilize this piezo-activator 31 to drive again, but not as existing skill be to exert pressure to the plastics that fill up die cavity in the utilization unit that shoots material.Therefore, the present invention can not produce the pressure of cross direction profiles inequality in the process of this moulding material 11 of extruding, and this moulding material 11 uniformly density fashion into this article shaped 12, and make this article shaped 12 have good physical optics character.
Three, after this article shaped 12 of moulding of the present invention, can not form unnecessary overflow waste material, therefore, the present invention can not cause the waste of plastics, and the inconvenience that can avoid these article shaped 12 reprocessing to wipe out the overflow waste material.
As shown in figure 12, be one second embodiment of the present invention, this second embodiment is similar to this embodiment, and its difference part is: this fixedly die 23 be to be installed in this movable link 22, but should mavable module core 24 be to be installed in this fixed component 21.In addition, have hole 213 in this fixation side template 212, and this piezo-activator 31 is placed in this hole 213, and the one end is fixed in this cavity adaptor plate 211, but its other end be with this mavable module core 24 in contrast to this fixedly an end of die 23 be connected.Moreover this liftout plate 225 has a hole 2251 that is communicated with this mould pin 222, but this pressure sensor 32 be arranged in this hole 2251 and borrow a bolt 321 and with this fixedly die 23 be connected in contrast to an end of this mavable module core 24.So, second embodiment also can reach purpose and the effect identical with above-mentioned first embodiment.In addition, the die unit 20 ' of present embodiment exposure also can use in these Jet forming machine 100 (see figure 6)s.
As shown in figure 13, be one the 3rd embodiment of the present invention, the die unit 20 of the 3rd embodiment " be the structure that is similar to the die unit 20 of first embodiment; and its difference part has and is: the movable link 22 of present embodiment comprises a mould pin 222, a board 223, one movable side template 224, two liftout plates 225, and a knock pin 226, and; this push rod 60 is fixing with this liftout plate 225; for example fixing each other in the mode of being spirally connected, and therefore, this push rod 60 can back and forth drive these liftout plates 225 and move.Secondly, but this piezo-activator 31 is to be installed on this liftout plate 225 in contrast to an end of this mavable module core 24.In addition, the die unit 20 of present embodiment exposure " also can in these Jet forming machine 100 (see figure 6)s, use.
What deserves to be mentioned is that in the present invention, before these piezo-activator 31 runnings, the cast gate of this unit 10 that shoots material has utilized barrier structure design sealing.
Conclude above-mentionedly, the pressure control device of ejection shaping die of the present invention unit not only can be fully all pressed the uniform ejection formation thing of ground compact density, and can be avoided forming the overflow waste material, so can reach the purpose of invention really according to the desired pressure curve.
Claims (24)
1. the pressure control device of an ejection shaping die unit, this die unit comprises a movable link at least, but a fixed component, is arranged at the mavable module core in this movable link, reach a fixedly die that is arranged in this fixed component, but be somebody's turn to do mavable module core and should fixedly form a die cavity between the die, inject formation one article shaped in this die cavity for a moulding material, but and should mavable module core can along a set direction with respect to this fixedly die move, this pressure control device comprises a piezo-activator, a pressure sensor, and an arithmetic processor, it is characterized in that:
This piezo-activator, but be arranged in this movable link and be connected with this mavable module core, but and this piezo-activator drive and should this set direction of mavable module core edge move;
This pressure sensor, be arranged in this fixed component and with this fixedly die be connected, and this pressure sensor via this fixedly die measure the pressure of this die cavity, and export a signal; And
This arithmetic processor, electrically connect with this piezo-activator, this pressure sensor respectively, and in order to store a desired pressure curve, this arithmetic processor receives this signal, and with this desired pressure curve ratio, handle computing after, drive and to move by mavable module core but drive this piezo-activator, to adjust the pressure in this die cavity.
2. the pressure control device of ejection shaping die as claimed in claim 1 unit is characterized in that:
This arithmetic processor more comprises:
One charge amplifier receives and amplifies signal from this pressure sensor, and exports one and amplify signal;
One digital/analog converter receives this amplification signal and exports a digital signal; And
One CPU receives this digital signal, then with this desired pressure curve comparison computing after, control this piezo-activator and change pressure in this die cavity.
3. the pressure control device of ejection shaping die as claimed in claim 1 unit is characterized in that:
This piezo-activator has a reciprocating feed precision, and this reciprocating feed precision is the thickness acceptable tolerance less than this article shaped.
4. the pressure control device of an ejection shaping die unit, this die unit comprises a movable link at least, but a fixed component, is arranged at the mavable module core in this fixed component, reach a fixedly die that is arranged in this movable link, but be somebody's turn to do mavable module core and should fixedly form a die cavity between the die, inject formation one article shaped in this die cavity for a moulding material, but and should mavable module core can along a set direction with respect to this fixedly die move, this pressure control device comprises a piezo-activator, a pressure sensor, and an arithmetic processor, it is characterized in that:
This piezo-activator, but be arranged in this fixed component and be connected with this mavable module core, but and this piezo-activator drive and should this set direction of mavable module core edge move;
This pressure sensor, be arranged in this movable link and with this fixedly die be connected, and this pressure sensor via this fixedly die measure the pressure of this die cavity, and export a signal; And
This arithmetic processor, electrically connect with this piezo-activator, this pressure sensor respectively, and in order to store a desired pressure curve, this arithmetic processor receives this signal, and with this desired pressure curve ratio, handle computing after, drive and to move by mavable module core but drive this piezo-activator, to adjust the pressure in this die cavity.
5. the pressure control device of ejection shaping die as claimed in claim 4 unit is characterized in that:
This arithmetic processor more comprises:
One charge amplifier receives and amplifies signal from this pressure sensor, and exports one and amplify signal;
One digital/analog converter receives this amplification signal and exports a digital signal; And
One CPU receives this digital signal, then with this desired pressure curve comparison computing after, control this piezo-activator and change pressure in this die cavity.
6. the pressure control device of ejection shaping die as claimed in claim 4 unit is characterized in that:
This piezo-activator has a reciprocating feed precision, and this reciprocating feed precision is the thickness acceptable tolerance less than this article shaped.
7. die unit, in a Jet forming machine, use, a moulding material is formed an article shaped, but this die unit comprises a fixed component, a movable link, fixedly die, a mavable module core, a piezo-activator, and a pressure sensor, it is characterized in that:
This movable link is provided with this fixed component opposition;
Fixedly die is arranged in this fixed component;
But should mavable module core, be arranged in this movable link, and and this fixedly form a die cavity between the die;
This piezo-activator is arranged in this movable link, but and be connected with an end of this mavable module core, but so that should mavable module core along a set direction with respect to this fixedly die move; And
This pressure sensor is arranged in this fixed component, and with this fixedly an end of die be connected, in order to the pressure in this die cavity of sensing and export a signal.
8. die unit as claimed in claim 7 is characterized in that:
Piezo-activator in this die unit and pressure sensor electrically connect with an arithmetic processor that stores a desired pressure curve respectively, this arithmetic processor receives this signal, and with this desired pressure curve ratio, handle computing after, drive and to move by mavable module core but drive this piezo-activator, to adjust the pressure in this die cavity.
9. die unit as claimed in claim 7 is characterized in that:
This fixed component comprises:
One cavity adaptor plate; And
One fixation side template, affixed with this cavity adaptor plate, and have a hole, fixedly die and this pressure sensor are arranged at this hole for these.
10. die unit as claimed in claim 7 is characterized in that:
This movable link comprises:
One core adaptor plate;
One mould pin, affixed with this core adaptor plate;
One board, affixed with this mould pin, and have one first hole, this board, this mould pin and this core adaptor plate form one and eject the space;
One movable side template, affixed with this board, and have second hole that is communicated with this first hole; And
One liftout plate is arranged at this and ejects in the space;
Be arranged in this first hole and this second hole but but this mavable module core reaches this piezo-activator that is connected with this mavable module core, and this piezo-activator is fixed in this liftout plate.
11. die unit as claimed in claim 7 is characterized in that:
This piezo-activator has a reciprocating feed precision, and this reciprocating feed precision is the thickness acceptable tolerance less than this article shaped.
12. die unit, in a Jet forming machine, use, a moulding material is formed an article shaped, but this die unit comprises a fixed component, a movable link, fixedly die, a mavable module core, a piezo-activator, and a pressure sensor, it is characterized in that:
This movable link is provided with this fixed component opposition;
Fixedly die is arranged in this movable link;
But should mavable module core, be arranged in this fixed component, and and this fixedly form a die cavity between the die;
This piezo-activator is arranged in this fixed component, but and be connected with an end of this mavable module core, but so that should mavable module core along a set direction with respect to this fixedly die move; And
This pressure sensor is arranged in this movable link, and with this fixedly an end of die be connected, in order to the pressure in this die cavity of sensing and export a signal.
13. die unit as claimed in claim 12 is characterized in that:
Piezo-activator in this die unit and pressure sensor electrically connect with an arithmetic processor that stores a desired pressure curve respectively, this arithmetic processor receives this signal, and with this desired pressure curve ratio, handle computing after, drive and to move by mavable module core but drive this piezo-activator, to adjust the pressure in this die cavity.
14. die unit as claimed in claim 12 is characterized in that:
This fixed component comprises:
One cavity adaptor plate; And
One fixation side template, affixed with this cavity adaptor plate, and have a hole, but this mavable module core and this piezo-activator are arranged at this hole.
15. die unit as claimed in claim 12 is characterized in that:
This movable link comprises:
One core adaptor plate;
One mould pin, affixed with this core adaptor plate;
One board, affixed with this mould pin, and have one first hole, this board, this mould pin and this core adaptor plate form one and eject the space;
One movable side template, affixed with this board, and have one second hole that is communicated with this first hole; And
One liftout plate is arranged at this and ejects in the space;
Should be fixedly die and with this fixedly this pressure sensor of being connected of die be arranged in this first hole and this second hole, and this pressure sensor is fixed in this liftout plate.
16. die unit as claimed in claim 12 is characterized in that:
This piezo-activator has a reciprocating feed precision, and this reciprocating feed precision is the thickness acceptable tolerance less than this article shaped.
17. Jet forming machine, in order to a moulding material is formed an article shaped, this Jet forming machine comprises a bearing base, a sandwich mold unit, a die unit as claimed in claim 7, a driver element, a unit that shoots material, and an arithmetic processor, it is characterized in that:
This sandwich mold unit is arranged on this bearing base, has a fixation side board fetching plate, and a movable side board fetching plate in contrast to this fixation side board fetching plate;
This die unit, be arranged between this fixation side board fetching plate and this movable side board fetching plate, and the fixed component of this die unit is to be fixedly arranged on this fixation side board fetching plate, and the movable link of this die unit is to be fixedly arranged on this movable side board fetching plate;
This driver element is arranged on this bearing base, can drive this movable side board fetching plate and move, so that this movable link is combined closely with this fixed component or separated;
This unit that shoots material is arranged on this bearing base, and this moulding material is provided to the die cavity of this die unit; And
This arithmetic processor, in it, store a desired pressure curve, and electrically connect with the piezo-activator of this die unit and pressure sensor and to constitute a pressure control device, in the time of in this moulding material injects this die cavity, this pressure sensor measures this die cavity internal pressure and exports a signal to this arithmetic processor, this arithmetic processor according to this this signal of desired pressure curve processing computing after, modulate this piezo-activator and put on the interior pressure of this die cavity, make each article shaped all form with identical pressure curve.
18. Jet forming machine as claimed in claim 17 is characterized in that:
The fixed component of this die unit comprises:
One cavity adaptor plate, affixed with this fixation side board fetching plate; And
One fixation side template, affixed with this cavity adaptor plate, and have a hole, fixedly die and this pressure sensor are arranged at this hole for these.
19. Jet forming machine as claimed in claim 17 is characterized in that:
The movable link of this die unit comprises:
One core adaptor plate, affixed with this movable side board fetching plate;
One mould pin, affixed with this core adaptor plate;
One board, affixed with this mould pin, and have one first hole, this board, this mould pin and this core adaptor plate form one and eject the space;
One movable side template, affixed with this board, and have second hole that is communicated with this first hole; And
One liftout plate is arranged at this and ejects in the space;
Be arranged in this first hole and this second hole but but this mavable module core reaches this piezo-activator that is connected with this mavable module core, and this piezo-activator is fixed in this liftout plate.
20. Jet forming machine as claimed in claim 17 is characterized in that:
This piezo-activator has a reciprocating feed precision, and this reciprocating feed precision is the thickness acceptable tolerance less than this article shaped.
21. Jet forming machine, in order to a moulding material is formed an article shaped, this Jet forming machine comprises a bearing base, a sandwich mold unit, a die unit as claimed in claim 12, a driver element, a unit that shoots material, and an arithmetic processor, it is characterized in that:
This sandwich mold unit is arranged on this bearing base, has a fixation side board fetching plate, and a movable side board fetching plate in contrast to this fixation side board fetching plate;
This die unit, be arranged between this fixation side board fetching plate and this movable side board fetching plate, and the fixed component of this die unit is to be fixedly arranged on this fixation side board fetching plate, and the movable link of this die unit is to be fixedly arranged on this movable side board fetching plate;
This driver element is arranged on this bearing base, can drive this movable side board fetching plate and move, so that this movable link is combined closely with this fixed component or separated;
This unit that shoots material is arranged on this bearing base, and this moulding material is provided to the die cavity of this die unit; And
This arithmetic processor, in it, store a desired pressure curve, and electrically connect with the piezo-activator of this die unit and pressure sensor and to constitute a pressure control device, in the time of in this moulding material injects this die cavity, this pressure sensor measures this die cavity internal pressure and exports a signal to this arithmetic processor, this arithmetic processor according to this this signal of desired pressure curve processing computing after, modulate this piezo-activator and put on the interior pressure of this die cavity, make each article shaped all form with identical pressure curve.
22. Jet forming machine as claimed in claim 21 is characterized in that:
The fixed component of this die unit comprises:
One cavity adaptor plate, affixed with this fixation side board fetching plate; And
One fixation side template, affixed with this cavity adaptor plate, and have a hole, but this mavable module core and this piezo-activator are arranged at this hole.
23. Jet forming machine as claimed in claim 21 is characterized in that:
The movable link of this die unit comprises:
One core adaptor plate, affixed with this movable side board fetching plate;
One mould pin, affixed with this core adaptor plate;
One board, affixed with this mould pin, and have one first hole, this board, this mould pin and this core adaptor plate form one and eject the space;
One movable side template, affixed with this board, and have second hole that is communicated with this first hole; And
One liftout plate is arranged at this and ejects in the space;
Should be fixedly die and with this fixedly this pressure sensor of being connected of die be arranged in this first hole and this second hole, and this pressure sensor is fixed in this liftout plate.
24. Jet forming machine as claimed in claim 21 is characterized in that:
This piezo-activator has a reciprocating feed precision, and this reciprocating feed precision is the thickness acceptable tolerance less than this article shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031284531A CN100480018C (en) | 2003-04-28 | 2003-04-28 | Pressure controlling device for jetting unit of forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031284531A CN100480018C (en) | 2003-04-28 | 2003-04-28 | Pressure controlling device for jetting unit of forming die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1541825A CN1541825A (en) | 2004-11-03 |
| CN100480018C true CN100480018C (en) | 2009-04-22 |
Family
ID=34322162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031284531A Expired - Fee Related CN100480018C (en) | 2003-04-28 | 2003-04-28 | Pressure controlling device for jetting unit of forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100480018C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100429064C (en) * | 2005-06-24 | 2008-10-29 | 亚洲光学股份有限公司 | Die unit and injection forming machine |
| CN103895149B (en) * | 2012-12-31 | 2016-08-24 | 成纶企业股份有限公司 | The plastic object forming method more than injection locomotive wall size |
| TWI631070B (en) * | 2017-01-06 | 2018-08-01 | 國立台灣科技大學 | Method of producing optical element having micro-structure |
| US11524472B2 (en) | 2017-01-06 | 2022-12-13 | National Taiwan University Of Science And Technology | Method of manufacturing optical component having micro-structures |
| US10836088B2 (en) | 2017-04-25 | 2020-11-17 | Kistler Holding, Ag | Method for reproducing injection molded parts of quality and injection molding unit for performing the method |
| TWI769288B (en) * | 2018-08-08 | 2022-07-01 | 揚明光學股份有限公司 | Mold for injection molding and method of manufacturing polymer material component |
-
2003
- 2003-04-28 CN CNB031284531A patent/CN100480018C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1541825A (en) | 2004-11-03 |
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