CN100509386C - Equipment and method of making optical recording medium - Google Patents
Equipment and method of making optical recording medium Download PDFInfo
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- CN100509386C CN100509386C CNB2005101327736A CN200510132773A CN100509386C CN 100509386 C CN100509386 C CN 100509386C CN B2005101327736 A CNB2005101327736 A CN B2005101327736A CN 200510132773 A CN200510132773 A CN 200510132773A CN 100509386 C CN100509386 C CN 100509386C
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Abstract
An apparatus for preparing the optical record medium (disc) is composed of an injection moulding station with mother disc for producing disc substrates, a conveying belt for conveying, cooling and solidifying the disc substrates, a sputtering station for sputtering the reflecting material on the disc substrates, and an adhesive station for adhering the disc substrates to form disc. Said adhesive station has a voltage generator for applying instantaneous pulse voltage to each disc substrate to remove the air bubbles from adhesive and a rotating unit for rotating the each disc substrate in a disc by a relative angle to obtain better dynamic balance.
Description
Technical field
The present invention relates to the optical record medium field.Particularly, the present invention relates to make the Apparatus and method for of plate-like optical record medium, this plate-like optical record medium is used for transmission or digital-information recording, use described equipment and implement the irregularity degree that this method making dish can the minimizing dish, avoid dish contingent dynamic unbalance degree when reading simultaneously, and the bubble in the adhesive layer of elimination finished disk.
Background technology
DVD (universal disc) is one of most popular optic storage medium.DVD is intended to cover home entertaining, computer and commercial information with a kind of single number format.Technically, DVD is newer generation CD storage technique, and is more much bigger on numerical capacity than CD, and read/write speed is faster, can hold the video than CD audio frequency even the better similar film of picture computer data.DVD has been substituted laser disk, is expected to replace video-tape and video-game TV, and might finally replace audio frequency (Audio) CD and CD-ROM.
Prior art Chinese patent application CN1135638A has disclosed a kind of optical-information intermediat medium and manufacture method and manufacturing equipment, it utilizes radiation curable resins to link the first and second two substrates of optical record medium, and this manufacturing equipment also comprises second substrate is placed to the first suprabasil device, makes the device of substrate rotation and the device that shines radiation-curable resin.
Prior art Chinese patent application CN1459102A has disclosed a kind of optical disc manufacturing apparatus and manufacture method; it comprises the molding mechanism of manufacturing dish substrate; the cooling body of cooler pan substrate; the dish substrate is moved to the mobile placing device of cooling body and turntable; form parts from mobile placing device receiving plate substrate and at the film that coils substrate formation reflectance coating; turntable; the switching mechanism of upset dish substrate; with the overlaying mechanism of dish substrate mutual superposition, and to coiling the ultraviolet also hardening element of cure adhesive of radiation on the substrate.
Prior art Chinese patent application CN1320915A has disclosed a kind of adhesive bonding method and device of optic disc base board, it is by forming electric field between adhesive supply nozzle from adhesive to optic disc base board that supply with and optic disc base board, under this state, supply with adhesive to optic disc base board, and the overlapping spinning that carries out of two optic disc base boards is handled between the optic disc base board that suppresses bonding and formed hollow.
In the production of DVD dish, two-layer dish base is bonded together to form the DVD dish be a considerable step, bonding that incorrect meeting causes dish warpage, imbalance, align-err and generation bubble etc.Bonding bubble be meant two dish bases in conjunction with the time make gas in adhesive has been enclosed in adhesive layer.The reason that bubble produces is that adhesive is to the chemical attack in aluminium reflecting layer and the chemical erosion of adhesive self.Air in the bubble can produce oxidation to aluminium, can form pin hole behind the certain hour.The huge centrifugal force that the dish that contains bonding bubble can produce because rotation at a high speed in use and produce layering, it mainly influences the long-time stability of DVD disk ring border test, even directly causes dish to be scrapped and damage fetch equipment.In addition, every dish owing to the density difference of injected plastics material, moist gradient, the contraction of protective paint, the multiple reasons such as heat gradient during the injection moulding, produces distortion, warpage through regular meeting after pressing mold is made.Coil such irregularity degree and make that the geographic center of the physics center of gravity of dish and dish is inconsistent, thereby when dish is read, cause the dynamic unbalance of " beating " about the dish easily.This dynamic unbalance can influence to be play and the mechanical servo of player is caused damage, cause producing misread, noise, imprinting failure, the loss of data of preserving and can not preserve data etc. for a long time.
Summary of the invention
In order to solve the above-mentioned defective that exists in the prior art, the objective of the invention is to provide a kind of remarkable flatness of improving finished product, improve the manufacturing equipment and the method for the optical media of end product quality.
According to a first aspect of the invention, provide a kind of equipment of making optical media, having comprised: in order to the injection molding station of production dish base, this injection molding station comprises a stamper; Conveyer belt is used to transmit the dish base from injection molding station, makes its cooling and curing simultaneously; The sputter station is used to receive the dish base from conveyer belt, and to coiling basic sputter reflecting material, with the uniform deposition reflecting layer; Bonding station is used to receive the dish base from the sputter station, and forms the part of a dish or a dish with basic being bonded together of two dishes that a kind of adhesive will receive successively; Wherein said bonding station is provided with a voltage generator, is used for when each dish base is bonded as dish each dish base being applied transient pulse voltage, to eliminate issuable bubble in the adhesive that respectively coils between the base.
According to a preferred embodiment of the equipment of making optical media of the present invention, pulse voltage is the variable-frequency variable-voltage pulse.
According to another preferred embodiment of the equipment of making optical media of the present invention, the stamper of injection molding station is set to the deformation extent predeformation of the dish base made according to drawing up, with the distortion of the groove pattern on the dish base of compensation institute injection moulding.
Another preferred embodiment according to the equipment of making optical media of the present invention is provided with the receptacle, the adhesive that are used for the tray base in adhesion process at described bonding station and applies mouth, and it is bonding mutually that wherein receptacle promotes the dish base of institute's carrier band on it.
Also preferred embodiment according to the equipment of making optical media of the present invention, described bonding station is provided with the basic rotating mechanism of dish, be used for being bonded as dish and the time making and respectively to coil the base predetermined angular that rotates relative to one another will coiling base, so that the dynamic unbalance degree of institute's formation dish minimizes.
According to another preferred embodiment of the equipment of making optical media of the present invention, comprise that also the back solidifies cooling stations, be used for the dish base that transmits through conveyer belt is further cooled off, solidifies.
Also preferred embodiment according to the equipment of making optical media of the present invention also is provided with the adhesive curing system at described bonding station.
According to the another preferred embodiment of the equipment of making optical media of the present invention, described adhesive curing system is the UV lamp.
According to another preferred embodiment of the equipment of making optical media of the present invention, be provided with also that to be used for be dish or the armor coated additional stations of dish base.
According to a second aspect of the invention, provide a kind of equipment of making optical media, having comprised: in order to produce first injection molding station of the first dish base, this injection molding station comprises a stamper; First conveyer belt is used to transmit the first dish base from first injection molding station, makes its cooling and curing simultaneously; The first sputter station is used to receive the first dish base from first conveyer belt, and to the basic sputter reflecting material of first dish, with the uniform deposition reflecting layer; The stamper of wherein said first injection molding station is set to the deformation extent predeformation according to the dish base made of drawing up, with the distortion of the groove pattern on the dish base of compensation institute injection moulding.
A preferred embodiment of the equipment of making optical media according to a second aspect of the invention, also comprise: the first bonding station, be used to receive the first dish base, and form the part of a dish or a dish with basic being bonded together of two first dishes that a kind of adhesive will receive successively from the first sputter station.
Another preferred embodiment of the equipment of making optical media according to a second aspect of the invention also comprises: be used to produce second injection molding station of the second dish base, this injection molding station comprises a stamper; Second conveyer belt is used to transmit the second dish base from second injection molding station, makes its cooling and curing simultaneously; The second sputter station is used to receive the second dish base from second conveyer belt, and to the basic sputter reflecting material of second dish, with the uniform deposition reflecting layer; And first and second in the bonding station at least one, be respectively applied for the first and second dish bases of reception, and with a kind of adhesive the first and second dish bases be bonded together and form one and coil or the parts of a dish from the first and second sputter stations.
According to a third aspect of the invention we, provide a kind of equipment of making optical media, having comprised: in order to the injection molding station of production dish base, this injection molding station comprises a stamper; Conveyer belt is used to transmit the dish base from injection molding station, makes its cooling and curing simultaneously; The sputter station is used to receive the dish base from conveyer belt, and to coiling basic sputter reflecting material, with the uniform deposition reflecting layer; Bonding station is used to receive the dish base from the sputter station, and forms the part of a dish or a dish with basic being bonded together of two dishes that a kind of adhesive will receive successively; Be provided with the basic rotating mechanism of dish in the wherein said bonding station, be used for when each dish base is bonded as dish, making each dish base rotation one predetermined angular relatively, so that the dynamic unbalance degree of institute's formation dish minimizes.
According to a forth aspect of the invention, provide a kind of method of making optical media, may further comprise the steps: at injection molding station injection molded trays base; The dish base that generates is sent to the sputter station by conveyer belt, makes its cooling and curing simultaneously; To coiling basic sputter reflecting material, with the uniform deposition reflecting layer; At bonding station will through sputter respectively coil base carry out bonding, to form a dish or the part of a dish; In described adhesion step, the working voltage generator is treating to apply transient pulse voltage on the bonding dish base, so that eliminate issuable bubble in the adhesive that is expelled on the dish base.
According to a preferred embodiment of the method for making optical media of the present invention, the step of each dish base being carried out bonding formation dish comprises: mouthful go up the injection adhesive to the dish base by an adhesive dispensing; Move it and upload a receptacle that has the dish base, make this dish base bonding with the dish base on another receptacle.
According to another preferred embodiment of the method for making optical media of the present invention, the pulse voltage that is applied on the described dish base is the variable-frequency variable-voltage pulse.
According to the another preferred embodiment of the method for making optical media of the present invention, when each dish base is bonded as CD, makes and treat the bonding base predetermined angular that rotates relative to one another that respectively coils, coil the irregularity degree of the basic bonding dish that forms to reduce by each.
Also preferred embodiment according to the method for making optical media of the present invention in adhesion step, rotates the dish base on the receptacle at a high speed, makes adhesive treat uniform spreading between bonding dish base thus under action of centrifugal force.
According to another preferred embodiment of the method for making optical media of the present invention, also being included in is bonded together each described dish base makes the step of adhesive sclerosis in the process of formation dish.
Another preferred embodiment according to the method for making optical media of the present invention also is included in the step that quality test is carried out to the dish that comes the autoadhesion station in the testing station, deposits respectively will coil by whether qualified the classification according to the result of testing station test.
Also preferred embodiment according to the method for making optical media of the present invention also comprises coiling base or coiling armor coated additional treatment step.
According to a fifth aspect of the invention, provide a kind of method of making optical media, may further comprise the steps: at injection molding station injection molded trays base; The dish base that generates is sent to the sputter station by conveyer belt, makes its cooling and curing simultaneously; To coiling basic sputter reflecting material, with the uniform deposition reflecting layer; Wherein, in the step of injection molded trays base, adopt a stamper through predeformation, this stamper is set to the deformation extent predeformation of the dish base made according to drawing up, with the distortion of the groove pattern on the dish base of compensation institute injection moulding.
A preferred embodiment of the aspect of making optical media according to a fifth aspect of the invention, also being included in bonding station will carry out step for adhering through the base that respectively coils of sputter, to form the part of a dish or a dish.
According to a sixth aspect of the invention, provide a kind of method of making optical media, may further comprise the steps: at injection molding station injection molded trays base; The dish base that generates is sent to the sputter station by conveyer belt, makes its cooling and curing simultaneously; To coiling basic sputter reflecting material, with the uniform deposition reflecting layer; At bonding station will through sputter respectively coil base carry out bonding, to form a dish or the part of a dish; Wherein each dish base is being bonded as when dish, is making and treat the bonding base predetermined angular that rotates relative to one another that respectively coils, coiling the irregularity degree of the basic bonding dish that forms by each to reduce.
Description of drawings
Fig. 1 is the schematic diagram of equipment of the making optical media of the preferred embodiments of the invention;
Fig. 2 A is a dish base of the prior art and the schematic diagram with stamper of accurate replicating disk base reverse side information
Fig. 2 B is the schematic diagram of a dish base of the present invention and the stamper that is out of shape in advance;
Fig. 2 C shows is that injecting melted material by two is the cross-sectional view of the die cavity that forms of the stamper plane of one with stamper;
Fig. 2 D is the schematic diagram of the dish that injection material forms among Fig. 2 C, has shown that disk center's density of material is big less than marginal density;
Fig. 2 E is each side of the injection of the preferred embodiments of the invention, the graph of a relation of injection moulding position and compression process;
Fig. 3 A is the rotation schematic diagram of the dish that changes of thickness;
Fig. 3 B of the present inventionly is bonded as the process schematic diagram of dish with the irregularity degree that reduces to coil with two dish bases;
Fig. 3 C is the dynamically process schematic diagram of bonding two dish bases in uneven thickness of the present invention;
Fig. 4 is the schematic representation of apparatus that the basic bonding formation dish of two dishes is adopted of the present invention.
The specific embodiment
In conjunction with the accompanying drawings the preferred embodiments of the invention are described in detail now.
Usually, Yi Bian when when having the information of replisome, stamper that another side has forme to be put in the injection molding station, the melted material (as Merlon) of heat just is injected into the injection molding cavity that this stamper is formed.Melted material so just can be produced a replisome that stamper reverse side information is arranged at the groove pattern that forms under several tons the pressure effect on the stamper.But it is very difficult duplicating accurate stamper information, for example, when a kind of material such as Merlon is injection molded into smooth replisome, the optical property and the structure of stamper information is just quite accurately duplicated very difficulty.Compare with CD, the groove pattern of DVD dish is little, narrow and spacing is little each other, this makes when the material with Merlon is injected into the replisome of minor groove pattern of DVD specification, is difficult to more the optical property and the structure of stamper information are accurately duplicated.
In the prior art, be manufacturing dish base, need to have on the stamper and the corresponding accurate reverse side information of dish base.What show among Fig. 2 A is that a stamper 202 and that is provided with the accurate reverse side information of replisome coils base 204 in the prior art, and stamper 202 just in time has the information of replicating disk base 204 reverse side, that is to say, stamper 202 is made into 204 li desired opposing faces of replicating disk base.Yet, when with stamper high velocity compacted dish base,, pressed the groove pattern that coils on the base to deform because the press time shortens and be used as the reason of material (as the Merlon) character of dish base, make that final groove pattern is undesirable.
In addition, in the prior art, when injection moulding speed improves, can cause a lot of potential problems such as the dish warpage exceeds standard more.It is good that the quality of the feasible dish of result does not just have with the quality of the dish of enough time injection mouldings.One of common problem is exactly that the groove pattern of the dish base (dish that promptly duplicates or replisome) of injection moulding can deform.
It is different that the stamper that the present invention uses in injection moulding process and conventional stamper in the existing method are provided with, and it can effectively remedy this distortion of the basic groove pattern of dish.
A preferred embodiment of the present invention has been shown among Fig. 1, is the schematic diagram that example shows manufacturing equipment 100 with for example DVD9 (single-surface double-layer) optical media." one " that all are mentioned in this specification or the number of " two " they are in order more easily to understand the present invention, rather than in order to limit the present invention.The equipment that those skilled in the art will appreciate that manufacturing optical media of the present invention is not limited to setting and the configuration described in the above preferred embodiment.For example, this equipment 100 is easy to expand to the dish base of producing varying number in the same time and comes bonding formation dish, for example produces four dish bases and carries out bonding and obtain two-sided dual layer discs, as DVD18.Perhaps, equipment of the present invention can be arranged to produce single face single-layered disk or two-sided single-layered disk.
As shown in Figure 1, the equipment 100 of this making optical media can represent one independently production line or be used for produce the equipment component of the optical media of record or storing digital information, in the equipment of the manufacturing optical media of this embodiment, comprise first and second injection molding stations 102,103, first and second conveyer belts 106,107,104, the 105 and first and second bonding stations 110,111, the first and second sputter stations, two dish bases of this device fabrication, with these two the basic bonding formation single-surface double-layer dishes of dish, as DVD9.In the present invention, first and second injection molding stations 102,103 are set to a kind of raw material (as molten polycarbonate) are injected the die cavity of stamper.Produce first and second dish basic L0, the L1 of plate-like successively from injection molding station 102,103, first and second dish basic L0, the L1 are delivered to respectively on the conveyer belt 106,107 subsequently.The first and second dish bases being sent in the process at two corresponding sputter stations 104,105, make its cooling and sclerosis simultaneously by two conveyer belts 106,107.Being used for the transmission speed of conveyer belt 106,107 of transmission dish base can control or be provided with according to being used for the character of material of production dish base, so just can guarantee that the first and second dish bases have obtained suitably cooling and sclerosis before sputter is carried out at sputter station 104,105 arriving.The first and second dish bases that first and second conveyer belts will generate are sent to the first and second sputter stations 104,105 respectively and carry out metal sputtering, with one or more reflecting materials on the sputter, and for example silver, aluminium, gold or silver alloy, the reflecting layer of generation dish base.The first and second dish bases of at last sputter being crossed are sent to the first and second bonding stations 110,111, and by adhesive the first and second dish bases being bonded together forms the part of a dish or a dish.
Preferably, solidify cooling stations after can in this manufacture process, being provided with one again, be used for the first and second dish bases are further cooled off, solidify.
According to the present invention, for preventing the dish base generation internal modification after the injection moulding, injection molding station has adopted so-called balance injection molding technology, the stamper elder generation that is wherein adopted is predeformation in one way, when deforming with the groove pattern of " distortion " on the dish base of convenient injection moulding, the pattern of groove just in time is repaired to such an extent that meet the requirements.
Fig. 2 B is the schematic diagram according to a dish base according to the present invention and the stamper that is out of shape in advance.Shown in Fig. 2 B, be used for suppressing groove stamper 210 tooth than the tooth of the stamper 202 of " accurately " among Fig. 2 A do longlyer, thinner.Because stamper 210 is out of shape in advance, so the groove pattern that the dish base that injects from stamper 210 is printed on is exactly the information on the stamper 210 of predeformation, experience then after the inherence distortion of material of injection molded trays base, the groove pattern on the dish base that obtains just is repaired to such an extent that just in time meet the requirements.
According to the present invention, by adopt so-called balance injection molding technology at injection molding station, it is this distortion of compensating disc base groove pattern effectively.And injection molding station is configured to produce the just shortening significantly of whole circulation cycle of a dish like this with than faster speed injection molded trays base in the prior art.
Among the present invention, injection, injection moulding position and compacting all can be controlled mutually.Understand in order to be more convenient for, Fig. 2 E shows the schematic diagram of injection, injection moulding position and compacting control, and what wherein trunnion axis was represented is the time, and vertical axes is represented pressure or position.Curve 230 represent the injection moulding position, for example two mould planes 222,224 one of them over time, when curve 230 overlaps with trunnion axis, represent that two mould planes compress mutually.The injection that curve 232 is represented melted material over time.The control that curve 234 is represented pressing process over time.In actual production, when two mould planes 222,224 mutually when compressing, just melted material is injected injection molding cavity.Finish after the injection of melted material, injection moulding has just begun.Shown in curve 234, after two planes are to good position, begin to exert pressure, pressure was increased to a maximum (as 5 tons) after injection was finished.Pressure drops to the horizontal segment 236 of certain limit subsequently.Afterwards, pressure is increased to another horizontal segment 238 again, and the zone that remains on another setting then descends gradually, until reducing to 0.Before the dish base was produced from injection molding cavity, pressure was increased to maximum again, and the dish base just can obtain enough sclerosis like this.
In any case, when coiling when reading at a high speed, the dynamic unbalance degree must be reduced to minimum.The dynamic unbalance of dish betides when the geometric center of the physics center of gravity of dish base and dish is inconsistent.One of modal problem of the dish base that injects from injection molding station is exactly the basic warpage of the whole inhomogeneous and feasible dish of disk substrate material Density Distribution, and the also out-of-flatness of dish of so bonding generation of dish base can make dish dynamic unbalance can occur thus when playing back at high speed.Referring to Fig. 2 C, show that melted material injects the injection molding cavity 220 that is formed by two mould planes 222,224, and two planes 222,224 and stamper are one.The result is shown in Fig. 2 D, and the density of coiling 228 center material does not have the density at edge big, and of this sort density unevenness is even to be to cause coiling one of irregular reason.
Fig. 3 A is the rotation schematic diagram of dish 300 in uneven thickness.When dish 300 rotates to surpass certain speed, owing to of the geometric center rotation of the different physical centre that cause 306 of gravitation around dish 300.As shown in Figure 3A, when reference line 304 during in dish 300 left side, center of gravity 306 makes dish produce warpage to the left side, and when the right side of reference line 304 at dish 300, center of gravity 306 makes dish produce warpage to the right.
In theory, when the speed of reading to coil improved, the depth of focus shortened, and therefore required more stable focusing.Generally speaking, the dish that irregularity degree is high about the meeting " beating ", makes the driving mechanism of player produce vibration when playing, and causes the focusing and the track-seeking signal of difference thus.The problem of the dynamic unbalance degree that this irregular dish produces when playing can cause broadcast mechanism to run slowly, even the read/write operation failure.
Although the variation that quick injection moulding meeting causes causing radially and the molecular density of tangential warpage distributes can come the molecular density distribution of material is regulated effectively by the motion and the pressure of control injection moulding process.
According to the present invention, not only can improve the quality of finished disk by adopting improved stamper and balance injection molding technology, and, also can use the dynamic equilibrium adhesive bonding method to make the dynamic unbalance degree of dish be reduced to minimum.When forming a dish when two dish bases from injection molding station production are bonded together, at first with these two dish bases toward each other rotation one special angle, the irregularity degree that makes two dishes combine is reduced to minimum.For example, a kind of method of measuring this angle is: all out-of-flatnesses of bonding two dish bases are treated in supposition, measure in two dish bases the corresponding pattern of each earlier with one or more sensors (as pressure sensor or optical pickocff); After measuring the pattern of dish base, one of them coils gene card out-of-flatness and just can measure (for example measuring angle is 1 degree) around the anglec of rotation of its axis, another can be coiled the center of gravity symmetry that base be rotated into and this dish is basic like this, so that the irregularity degree after the combination of two dish bases is reduced to minimum.Perhaps, one in two dish bases is rotated gradually with respect to another, irregularity degree that just can the measurement dish, this anglec of rotation also can be measured by minimizing of dynamic irregularity degree.
Fig. 3 B is according to another example of the present invention, illustrates two dish bases 310,312 are bonded as the process schematic diagram of dish with the irregularity degree that reduces to coil.In this example, shown in Fig. 3 B, dish base 320 and 322 all is irregular.It is contemplated that sign has a reference point 316 on the dish 310.Before two dishes 310,312 being bonded together, will coil angle of 310 rotations, as 25.24 ° with a kind of adhesive 314.Aborning, any one in two dishes can be with reference to another with this angle rotation.
Fig. 3 C is the process schematic diagram of dynamically bonding two dish bases 320,322 of the present invention, and wherein two dish bases 320,322 all are irregular.If two dish bases are directly bonding, the irregularity degree of the dish 324 that obtains will enlarge.According to dynamic equilibrium adhesive bonding method described above, suppose to record and one of them is coiled basic Rotate 180 ° can make finished disk when reading, obtain minimum dynamic unbalance degree, then can select will coil earlier basic 320 Rotate 180s °, and then and dish base 322 be bonded together and form a dish 326.The result is shown in 328, and the irregularity degree of two dish bases 320,322 is effectively controlled.
Fig. 4 is the schematic diagram with the device 400 that adopted of the basic bonding formation dish of two dishes of the present invention.Device 400 can be used as among Fig. 1 any one in two bonding stations 110,111.According to the present invention, can a voltage generator (not shown) be set at bonding station, be used for when two dish bases are bonded as dish, two dish bases being applied transient pulse voltage, to eliminate the bubble in the adhesive between the two dish bases.
As shown in Figure 4, device 400 comprises a mounting portion 402 and a stick portion 404.Mounting portion 402 is used for depositing the dish base that sends from two injection molding stations, and then the first dish base and the second dish base are sent to stick portion 404.As shown in Figure 4, preferably, stick portion 404 comprises two receptacles 406,408, and higher receptacle 406 is deposited the basic L0 of first dish, and lower receptacle 408 is deposited the basic L1 of second dish.Adhesive dispensing mouthful (not shown) is installed in the top of the second dish primary surface, and when bonding, it is injected at adhesive 410 on the surface of the second dish base.In the process of injection adhesive, the second dish base rotation can be coated in adhesive on the dish base thus equably.Then, to press on the second dish basal orientation, when the adhesive on the second dish base soon contacts with the first dish base, pulse voltage (as 10KV) when applying a flash by the voltage generator (not shown), help adhesive 410 on the composition surface of the first and second dish bases, evenly to spread out, and can eliminate issuable bubble in two adhesives 410 that coil between the bases.Simultaneously, because the basic surface that is forced into the first dish base of second dish, two dish bases rotate with certain speed according to the character of adhesive 410, and adhesive 410 will be sprawled between two dish bases because of action of centrifugal force and come like this.
Preferably, this voltage generator can be a variable voltage variable frequency pulse generating unit, with in adhesion process to treating that bonding dish base applies the variable-frequency variable-voltage pulse.
Preferably, also can provide lower second receptacle rotation second to coil base in the tight back of application of adhesive adhesive 410 is coated in equably the step on the second dish base.Owing to exist the dish base of irregularity degree to use top adhesive bonding method to make its irregularity degree can not get controlling most effectively, can be preferably according to aforementioned balance adhesive bonding method, before the step that is being the second dish base injection adhesive, can make according to the irregularity degreees of two dish bases a dish base or two dish bases all relatively another rotation one special angles that record with the irregularity degreees of the dish that reduces the basic bonding formation of first and second dishes.
The speed that adhesive 410 is sprawled is relevant with the rotary speed of two dish bases, and this rotary speed can be by imposing on the Control of Voltage of dish base.For example voltage swing and application time wait and control and be provided with this voltage by a series of parameter.Like this, the method with the bonding dish base of transient pulse voltage just can effectively be suppressed at the reboil bubble that produces in the conventional adhesive method.
In order to make adhesive obtain suitable hardening effect fast, also can the adhesive curing system be set, such as the UV lamp at bonding station.
Preferably, for convenience the dish that comes autoadhesion station 110 is carried out quality control, as shown in Figure 1, equipment of the present invention can comprise the dish apparatus for temporary storage of being made up of first buffer 112 and second buffer 114 116, is used for receiving respectively the dish from two bonding stations 110,111.
Whether in addition, equipment of the present invention can also comprise testing station 118, come the dish of producing at autoadhesion station to meet the requirements with test.To coil base behind the bonding generation dish in bonding station, stand after tested 118 the test, this dish apparatus for temporary storage 116 will coil whether qualified the storing classifiedly of test result according to testing station 118, for example: deposit qualified after tested dish for one in first and second buffers 112,114, another buffer is deposited underproof after tested dish.By the dish in two buffers 112,114 is tested, indicate which bonding station existing problem according to getting the whether qualified result of placing, in follow-up production routine, to adjust the quality of control panel.
Preferably, in order to test the result of each production routine in the whole dish production process, corresponding additional testing station can also be set in each production routine.For example, at injection molding station whether satisfactory test panel based injection molding shaping parameters additional testing station be set; At driving-belt the first and second dish bases are sent in the process at sputter station, the additional testing station of test first and second dish base coolings and hardening effect is set; Additional testing station that whether test sputter material uniformity, thickness and distributed areas meet the demands etc. is set at the sputter station.
When some dish was required the situation of bells and whistles, for example the one or both sides at dish all required to provide protective layer or when the one side of dish requires printing information is provided, can increase one or more optionally work stations in device 100.For example, increase additional stations 120 and be used for the dish that comes autoadhesion station 110 is coated with layer protective layer, dish in use just can not produce possible cut like this.
Situation in the real-time monitoring equipment production process or realization Long-distance Control can preferably optionally be provided with one or more camera (not shown) in each operation of production dish for convenience.For example, can one or more cameras be installed at injection molding station and be used for monitoring injection moulding process in two injection molding stations 102,103; Can one or more cameras be installed in the operation of conveyer belt transmission dish base and come the transport process of monitoring panel base from 102,103 to two sputter stations 104,105 of two injection molding stations; Also can monitor and to coil the process that base is bonded as dish at the one or more cameras of bonding station 110 installations.In addition, other states that one or more cameras come the monitoring flow waterline can be installed also, as testing station 118 or buffer 112,114.Under these situations, will see from one or more watch-dogs from the information of camera.These information can be digitized, encode, compress by the network equipment and transfer to installs far monitoring place, so that the problem of whole production line appearance is in time adjusted, thus the quality of production of control panel.
Be appreciated that above-mentioned embodiment is exemplary, and also nonrestrictive, for the one of ordinary skilled in the art, can carry out multiple change and/or improvement without departing from the inventive concept of the premise.
Claims (17)
1. equipment of making optical media comprises:
In order to the injection molding station of production dish base, this injection molding station comprises a stamper;
Conveyer belt is used to transmit the dish base from injection molding station, makes its cooling and curing simultaneously;
The sputter station is used to receive the dish base from conveyer belt, and to coiling basic sputter reflecting material, with the uniform deposition reflecting layer;
Bonding station is used to receive the dish base from the sputter station, and forms the part of a dish or a dish with basic being bonded together of two dishes that a kind of adhesive will receive successively;
Wherein said bonding station is provided with a voltage generator, is used for when each dish base is bonded as dish each dish base being applied transient pulse voltage, to eliminate issuable bubble in the adhesive that respectively coils between the base.
2. the equipment of making optical media as claimed in claim 1 is characterized in that, described pulse voltage is the variable-frequency variable-voltage pulse.
3. the equipment of making optical media as claimed in claim 1 is characterized in that, the stamper of described injection molding station is set to the deformation extent predeformation according to the dish base made of drawing up, with the distortion of the groove pattern on the dish base of compensation institute injection moulding.
4. the equipment of each described making optical media in the claim 1 to 3, it is characterized in that, be provided with the receptacle, the adhesive that are used for the tray base in adhesion process at described bonding station and apply mouth, it is bonding mutually that wherein receptacle promotes the dish base of institute's carrier band on it.
5. as the equipment of each described making optical media in the claim 1 to 3, it is characterized in that, described bonding station is provided with the basic rotating mechanism of dish, is used for being bonded as to make when coiling and respectively coiling the base predetermined angular that rotates relative to one another will coil base, so that the dynamic unbalance degree of institute's formation dish minimizes.
6. the equipment of each described making optical media in the claim 1 to 3 is characterized in that, also comprises back curing cooling stations, is used for the dish base that transmits through conveyer belt is further cooled off, solidifies.
7. the equipment of each described making optical media in the claim 1 to 3 is characterized in that, also is provided with the adhesive curing system at described bonding station.
8. the equipment of the described making optical media of claim 7 is characterized in that, described adhesive curing system is the UV lamp.
9. the equipment of each described making optical media in the claim 1 to 3 is characterized in that, also is provided with to be used for being dish or the armor coated additional stations of dish base.
10. method of making optical media may further comprise the steps:
At injection molding station injection molded trays base;
The dish base that generates is sent to the sputter station by conveyer belt, makes its cooling and curing simultaneously;
To coiling basic sputter reflecting material, with the uniform deposition reflecting layer;
At bonding station will through sputter respectively coil base carry out bonding, to form a dish or the part of a dish;
In described adhesion step, the working voltage generator is treating to apply transient pulse voltage on the bonding dish base, so that eliminate issuable bubble in the adhesive that is expelled on the dish base.
11. the method for the described making optical media of claim 10 is characterized in that, the step of each dish base being carried out bonding formation dish comprises:
Go up the injection adhesive by an adhesive dispensing mouth to the dish base;
Move it and upload a receptacle that has the dish base, make this dish base bonding with the dish base on another receptacle.
12. the method for claim 10 or 11 described making optical medias is characterized in that, the pulse voltage that is applied on the described dish base is the variable-frequency variable-voltage pulse.
13. the method for the described making optical media of claim 10 is characterized in that, each dish base is being bonded as when dish, makes to treat the bonding base predetermined angular that rotates relative to one another that respectively coils, and coils the irregularity degree of the basic bonding dish that forms to reduce by each.
14. the method for claim 10 or 11 described making optical medias is characterized in that, in adhesion step, the dish base on the receptacle is rotated at a high speed, makes adhesive treat uniform spreading between bonding dish base thus under action of centrifugal force.
15. the method for claim 10 or 11 described making optical medias is characterized in that, also is included in the step that makes the adhesive sclerosis in the process with the basic formation dish that is bonded together of each described dish.
16. the method for claim 10 or 11 described making optical medias is characterized in that, also is included in the step that quality test is carried out to the dish that comes the autoadhesion station in the testing station, deposits respectively will coil by whether qualified the classification according to the result of testing station test.
17. the method for claim 10 or 11 described making optical medias is characterized in that, also comprises coiling base or coiling armor coated additional treatment step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101327736A CN100509386C (en) | 2005-12-26 | 2005-12-26 | Equipment and method of making optical recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101327736A CN100509386C (en) | 2005-12-26 | 2005-12-26 | Equipment and method of making optical recording medium |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710090175 Division CN101051490A (en) | 2005-12-26 | 2005-12-26 | Device and method for producing optical recording medium |
| CN200710090174A Division CN100587822C (en) | 2005-12-26 | 2005-12-26 | Device and method for producing optical recording medium |
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| Publication Number | Publication Date |
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| CN1830661A CN1830661A (en) | 2006-09-13 |
| CN100509386C true CN100509386C (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005101327736A Active CN100509386C (en) | 2005-12-26 | 2005-12-26 | Equipment and method of making optical recording medium |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101295522B (en) * | 2007-04-23 | 2010-06-09 | 东莞宏威数码机械有限公司 | Production system for manufacturing single-face single-layer DVDR recordable optical disk |
| CN101197157B (en) * | 2007-11-20 | 2010-09-15 | 东莞宏威数码机械有限公司 | Double-end DVD9 optical disk producing system |
| CN101829998B (en) * | 2010-01-29 | 2011-09-28 | 东莞宏威数码机械有限公司 | Locating device and locating method |
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