CN101032880A - Screen printing device - Google Patents
Screen printing device Download PDFInfo
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- CN101032880A CN101032880A CN 200710085423 CN200710085423A CN101032880A CN 101032880 A CN101032880 A CN 101032880A CN 200710085423 CN200710085423 CN 200710085423 CN 200710085423 A CN200710085423 A CN 200710085423A CN 101032880 A CN101032880 A CN 101032880A
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Abstract
The screen printing device of the invention makes a scratch plate move on a shield slice surface thereby print the cataplasm on the shield slice to a substrate in order to print. The screen printing device includes: a scratch plate assembly which can hold the scratch plate at a status that the scratch is adjusted relative to the attack angle of the shield slice, and can make the scratch plate move relative to the shield slice; a control device for setting the attack angle to a prescribed angle to control the printing operation; and a cleaning device for removing the affixed cataplasm on the printed shield slice. The control device sets the attack angle to an original printing angle that the transferring print amount of the cataplasm amount is larger than the transferring print amount of common printing angle. Adopting the invention, a printing device can be provided which can not reduce the production efficiency, and can improve the transferring print amount of the cataplasm after the cleaning work, thereby can hold the transferring print amount of the cataplasm printed to the substrate at a certain amount.
Description
Technical field
The present invention relates to a kind of screen printing apparatus to pastes such as circuit substrates such as printed base plate coating paste scolders.
Background technology
In the past, common screen printing apparatus (below, abbreviate printing machine as), under the state that circuit substrate set on the print station and matte overlap each other, make pastes such as the paste scolder that is supplied to matte, conductive paste on matte, move (expansion of rolling) by scraper plate, thus through formed opening on the matte (matte opening) with paste printing (coating) to substrate.
Above-mentioned printing machine, under the state of scraper plate and matte butt, can adjust scraper plate makes it have the predetermined angular (angle of attack) that is suitable for printing with respect to the matte surface, and scraper plate is moved under the state that keeps this angle of attack on matte, with this paste is transferred on the substrate, to print accurately.
Then, after the substrate of printing regulation number, can be attached with paste on the matte, may influence the stability of printing state thus, therefore can remove attached to the paste on the matte by clearing apparatus set on the printing machine (for example, the open communique spy of Japan Patent opens flat 9-193362 number).Then, after the cleaning of matte finished, the scraper plate that is reset to the above-mentioned angle of attack moved on matte, prints with this.
But, after the cleaning of above-mentioned matte has just finished and the substrate that prints, the problem that exists the transfer printing amount of paste to reduce.That is, after the cleaning of matte was carried out, the paste that is attached to the matte peristome was removed, thus with cleaning before be transferred to the paste on the substrate the transfer printing amount compare, the transfer printing amount that is transferred to the paste on the substrate after the cleaning can reduce, and causes printing quality uneven thus.
In order to address the above problem, can be by reducing print speed printing speed (translational speed of scraper plate), increase print pass (scraper plate move back and forth number of times) etc., the transfer printing amount of the paste after the cleaning is increased.But the employing said method can make the productive temp time (tact time) of a substrate of printing increase, thereby production efficiency is descended.
Summary of the invention
The present invention does in view of the above problems, and its purpose is to provide a kind of production efficiency that can not make to descend, and can increase the transfer printing amount of the paste after cleaning has just finished, thereby the transfer printing amount that will be transferred to the paste of substrate remains on a certain amount of printing equipment.
In order to address the above problem, screen printing apparatus of the present invention, under the overlapping state of substrate and matte, make the surperficial butt of scraper plate and matte, and move back and forth, thus the paste on the matte being transferred on the substrate, it comprises, keep above-mentioned scraper plate can adjust above-mentioned scraper plate with respect to the state of the angle of attack on above-mentioned matte surface, and make scraper plate can carry out the relative scraper component that moves back and forth with respect to above-mentioned matte; The above-mentioned angle of attack is set to predetermined angular, controls the control device of printing operation with this; Be used to remove the clearing apparatus of paste accompanying on the matte after the printing; Above-mentioned control device after above-mentioned clearing apparatus has cleaned matte, is set to the above-mentioned angle of attack initial print angle of the transfer printing amount of paste greater than the transfer printing amount of common printing angle.
Adopt above-mentioned screen printing apparatus, after can finishing in the cleaning of matte, the angle of attack of scraper plate is set to the initial print angle of the transfer printing amount of paste greater than the transfer printing amount of the common printing angle that sets under the common printing state, therefore, at the substrate of firm end cleaning, can transfer printing paste during more than printing usually.Therefore, even removing by cleaning operation after cleaning that the paste that adheres on the matte peristome reduces the transfer printing amount of paste just finished, also can the enough pastes of transfer printing, keep certain so that be transferred to the transfer printing amount that is transferred to the paste on the substrate after the transfer printing amount of the paste on the substrate has just finished with cleaning before the cleaning.Therefore, increased the transfer printing amount by the angle of attack that changes scraper plate, so under the state that production efficiency can not descend, can obtain the stable printing result.
In addition, above-mentioned control device is set to the above-mentioned angle of attack after the above-mentioned initial print angle, when being printed onto the substrate of regulation number, the above-mentioned angle of attack can be set at common printing angle.
Adopt above-mentioned screen printing apparatus, after cleaning just finishes, make scraper plate be set to the initial print angle, and the substrate of the regulation number that can reduce the transfer printing amount of paste under this state prints, can increase the transfer printing amount of paste thus with respect to the substrate of afore mentioned rules number.Therefore, can remain on the transfer printing amount of the paste before and after the cleaning a certain amount of.
Above-mentioned control device is set at the above-mentioned angle of attack after the above-mentioned initial print angle, at each substrate, the angle of attack progressively is set to above-mentioned common printing angle from above-mentioned initial print angle.
Adopt above-mentioned screen printing apparatus,, after cleaning just finishes, can progressively adjust the recruitment of paste transfer printing amount at each substrate by progressively setting the angle of attack of scraper plate.Therefore, but at an amount of paste of each substrate transfer printing, thereby printing state can be stablized effectively.
Description of drawings
Fig. 1 is the side view of screen printing apparatus involved in the present invention.
Fig. 2 is the front view of above-mentioned screen printing apparatus.
Fig. 3 is the stereogram of above-mentioned screen printing apparatus.
Fig. 4 is the stereogram of the sweeper part of above-mentioned screen printing apparatus.
Fig. 5 is the stereogram of the scraper component of above-mentioned screen printing apparatus.
Fig. 6 is the side view of above-mentioned scraper component.
Fig. 7 is the block diagram of the control system of above-mentioned screen printing apparatus.
Fig. 8 is the flow chart of the integrated operation of the above-mentioned screen printing apparatus of expression.
Fig. 9 is the flow chart of subprogram of the printing operation of the above-mentioned screen printing apparatus of expression.
Figure 10 is the flow chart of subprogram of the cleaning operation of the above-mentioned screen printing apparatus of expression.
The specific embodiment
Below, accompanying drawings the specific embodiment of the present invention.
Fig. 1 and Fig. 2 roughly represent screen printing apparatus involved in the present invention, and Fig. 1 is the side view of this screen printing apparatus, and Fig. 2 is the front view of this screen printing apparatus.
As shown in Figure 1 and Figure 2, screen printing apparatus (below, the abbreviation printing equipment) on the pedestal 1, be provided with print station 3, and the both sides of this print station 3 be provided with printed base plate W (below, abbreviate substrate W as) the downstream conveyer belt 2C that moves into the upstream side conveyer belt 2A of print station 3 and take out of print station 3, constitute the substrate transferring line thus.
In addition, in the following description, the conveyance direction (direction of carrying line) of the conveyance substrate W that above-mentioned conveyer belt 2A, 2C are constituted is set at X-direction, direction setting with above-mentioned X-direction quadrature on horizontal plane is a Y direction, with the direction setting of X-direction and Y direction quadrature be Z-direction.
This print station 3 is supported by 4 shaft assemblies 10, and passes through the running of this 4 shaft assembly 10, and moves along X-axis, Y-axis, Z axle and R axle (around the rotation of Z axle).
Particularly, pedestal 1 is provided with the track 11 that extends along Y direction in horizontal plane, and Y-axis workbench 12 is installed on this track 11 sliding freely simultaneously.And, being arranged on ball-screw on the pedestal 1 (omitting diagram) and being connected with Y-axis workbench 12, Y-axis workbench 12 moves along Y direction with respect to pedestal 1 by the driving of this ball-screw.
On Y-axis workbench 12, be provided with track 13 along X-direction, X-axis workbench 14 is installed on this track 13 sliding freely simultaneously.And, being arranged on ball screw on the Y-axis workbench 12 (omitting diagram) and being connected with X-axis workbench 14, X-axis workbench 14 moves along X-direction with respect to Y-axis workbench 12 by the driving of this ball-screw.
On X-axis workbench 14, be provided with around plumb line (Z-direction) rotation R axle workbench 16 freely, this R axle workbench 16 can center on the rotation of Z axle with respect to X-axis workbench 14 by the driving of not shown drive unit.
On R axle workbench 16, be equipped with along above-below direction (Z-direction) slip slipping column 17 freely, on the top of this slipping column 17 lifting platform 18 is installed simultaneously.And, between lifting platform 18 and R axle workbench 16, being provided with ball-screw 19, lifting platform 18 drives and is guided by slipping column 17 by this ball-screw 19, moves along Z-direction (above-below direction) with respect to R axle workbench 16 thus.
So, 4 shaft assemblies 10 by driving above-mentioned each workbench 12,14,16,18 respectively, make print station 3 move along X-axis, Y-axis, Z axle and R axle (around the rotation of Z axle).
On lifting platform 18, be provided with a pair of main belt 2B along X-direction, also be provided with clamp mechanism 4, detent mechanism 5 and mounting table 20 etc. simultaneously.Thus, in the present embodiment, the above-mentioned print stations 3 that are used to keep substrate W of formation such as lifting platform 18, main belt 2B.
Mounting table 20 is by be positioned at the substrate W on the main belt 2B from the below lifting, with this supporting substrate W.This mounting table 20, be supported on freely on the lifting platform 18 by slipping column 21 liftings, by the driving of ball-screw set between this mounting table 20 and the lifting platform 18 (omitting diagram), move along Z-direction (above-below direction) simultaneously with respect to lifting platform 18.
On the other hand, above print station 3 grades, be provided with matte and keep assembly 6, scraper component 7, camera assembly 8 and sweeper 9 etc.
Matte keeps assembly 6, is used to keep matte 25.As shown in Figures 3 and 4, this matte keeps assembly 6, has the matte brace table 26 that is separately fixed on a pair of overhead shape support 30 that is supported on the pedestal 1, and being arranged on matte anchor clamps 27 on the matte brace table 26, the frame of clamping matte 25 by matte anchor clamps 27 makes matte 25 keep the horizontal extension state above above-mentioned print station 3.
Particularly, downside at above-mentioned support 30, be provided with the pair of tracks 35 of extending along Y direction respectively, and on these tracks 35, move the crossbeam 36 that extends along X-direction is installed freely, simultaneously, the ball-screw 38 that is supported on the support 30 and gives by motor 37 rotating drive screws togather with the not shown nut portion of this crossbeam 36.And, on crossbeam 36, be provided with the pair of tracks 39 of extending along X-direction, on these tracks 39, move camera head 40 is installed freely, the not shown ball-screw that carries simultaneously on crossbeam 36 and driven by motor screws togather with the not shown nut portion of camera head 40.That is, follow the rotation of above-mentioned each ball-screw, crossbeam 36 moves along Y direction with respect to above-mentioned support 30, and camera head 40 moves along X-direction with respect to crossbeam 36.
Sweeper 9 cleans from the below to matte 25, and it is installed on the above-mentioned crossbeam 36 with camera assembly 8.
Sweeper 9 has the sweeper head 44 that gives the lifting driving by not shown driving mechanism.In when cleaning, this sweeper head 44 enters lifting position, and follows moving of above-mentioned crossbeam 36 and pasting matte 25 and sliding, and cleans operation thus.In addition, though detailed icon not, sweeper head 44 maintains the cylinder (roll) that is wound with cleansing tissue, by the cleansing tissue of extracting out from this cylinder, draws the lower surface of wiping matte and the residual paste of peristome etc.
In addition, above-mentioned scraper component 7 is installed on the crossbeam 32 on the set trapped orbit 22 (with reference to Fig. 2) that extends along Z-direction, is connected with ball-screw 24 by servomotor 23 drivings simultaneously.Thus, scraper component 7 moves along Y direction with crossbeam 32, and scraper component 7 can move along Z-direction with respect to crossbeam 32 simultaneously.
Fig. 5～Fig. 6 represents the concrete structure of scraper component 7.
As Fig. 5, shown in Figure 6, scraper component 7 comprises the 7b of assembly portion and the head 7a that is used to be connected the 7b of this assembly portion that are used to keep scraper plate 86.This head 7a has the support 30 that aluminium etc. is made, and this support 30 comprises the horizontal part 30b that is fixed on this base 30a with moving the base 30a (as shown in Figures 1 and 2) that is installed in possibly on the said fixing track 22 and approximate horizontal.
At the downside of the horizontal part 30b of this support 30, be connected with gripper shoe 71 through slipping column 72 possibly along the Z-direction displacement, between this gripper shoe 71 and horizontal part 70b, be provided with the pressure sensor 74 that load cell (load cell) waits formation.In addition, assistant support 76 with respect to above-mentioned gripper shoe 71, is supported freely around the axis rotation that is parallel to Y-axis.Particularly, be provided with a pair of 71a of portion that hangs down at the downside (lower surface) of gripper shoe 71, cross this to the 1st back shaft 75 that the 71a of portion that hangs down extends along Y direction, supported freely through rotations such as bearings, assistant support 76 is installed on the 1st back shaft 75.Thus, assistant support 76 rotates around the axis that is parallel to Y-axis and is supported freely.
On above-mentioned assistant support 76, rotate and be supported with assembly assembling parts 78 possibly, and be equipped with the driving mechanism that is used to drive this assembly assembling parts 78.
In addition, in the present embodiment, rotate the part that is supported on possibly on the 1st back shaft 75, promptly assistant support 76, assembly assembling parts 78, aftermentioned scraper plate 86, gear-box 80 and servomotor 82 etc. are equivalent to the 7b of assembly portion.
As shown in Figure 5, the aftermentioned gear-box 80 with its formation one is installed on assistant support 76, and an end of the 2nd back shaft 77 (left end among Fig. 5), this gear-box 80 and outstanding run through to the outside.Thus, each connecting portion 78a of assembly assembling parts 78 in the both sides of assistant support 76 and gear-box 80, is fixed on the 2nd back shaft 77.
The partial fixing of the insertion gear-box 80 of the 2nd back shaft 77 has travelling gear (not shown), and this travelling gear is meshed with idle pulley (idle gear) (not shown) in being supported on gear-box 80.In addition, be fixed with the servomotor 82 as drive source in the side of gear-box 80, the output shaft of this servomotor 82 (driving shaft) inserts in the said gear case 80, and the driven wheel with above-mentioned idle pulley engagement is installed on this output shaft.That is, constitute above-mentioned driving mechanism by servomotor 82, above-mentioned each gear and the 2nd back shaft 77 etc.When servomotor 82 running, its rotating drive power is delivered to the 2nd back shaft 77 through each gear etc., with this assembly assembling parts 78 around the 2nd back shaft 77 rotating drive.
On said modules assembling parts 78, loading and unloading are equipped with scraper plate 86 freely.Particularly, scraper plate retainer 87 is installed on assembly assembling parts 78, scraper plate 86 remains on this scraper plate retainer 87.In addition, set a pair of screw shaft inserts on the said modules assembling parts 78 among the formed gathering sill 78b on the scraper plate retainer 87, and under the state that scraper plate retainer 87 and assembly assembling parts 78 overlap each other, nut part 88 and above-mentioned each screw shaft are screwed togather, thus scraper plate retainer 87 is fixed with respect to assembly assembling parts 78.
Above-mentioned scraper plate 86 is made by hard polyaminoester or stainless steel, is the plate-shaped member of elongate on X-direction.As shown in Figure 5, this scraper plate 86, the state with overlapped with the scraper plate retainer 87 that is elongate on X-direction is fixed on the above-mentioned scraper plate retainer 87.
At the two ends of the length direction of scraper plate retainer 87, be respectively arranged with anti-side leakage plate 89.When carrying out presswork,, can prevent that paste suppressing agent is to the both sides (outside of X-direction) of scraper plate 86 mobile (leakage) by this anti-side leakage plate 89.
So, above-mentioned scraper plate 86 by the rotating drive of assembly assembling parts 78 around the 2nd back shaft 77, is the posture that predetermined angular tilts and remain on respect to matte 25.Particularly, be that the direction of advance that remains on respect to head 7a is the posture that leans forward, for example, as shown in Figure 6, when head 7a carries out when mobile to the right, shown in the solid line of Fig. 6, scraper plate 86 remains on the posture that leans forward to the right.That is, scraper plate 86 is set the angle of attack of regulation for respect to matte 25.At this, the angle of attack is meant matte 25 and scraper plate 86 formed angles, can change from the peristome of the matte 25 transfer printing amount by the paste that extrudes by adjusting this angle of attack.In addition, can set the angle of attack around the rotating drive of the 2nd back shaft 77, thereby when printing, can make paste be in optimal state by setting the angle of attack to the transfer printing amount of substrate W by Control Component assembling parts 78.In addition, the angle of attack in the present embodiment, as described later, common printing angle θ in the time of can being set at common printing and the initial print angle θ n that after sweeper 9 cleans, is set.
Fig. 7 is a block diagram of roughly representing the control system of above-mentioned printing equipment.
As shown in Figure 7, this printing equipment is provided with the unified control device 50 of controlling the driving of above-mentioned each assembly.This control device 50 comprises, display unit 59, control circuit 61, image processing circuit 62, illumination control circuits 63 such as input units such as control part main body 51, keyboard/mouse 58, LCD.
Above-mentioned control part main body 51, comprise, carry out the CPU of logical operation, the HDD of various data such as RAM, various program and the OS of temporary various data, storage production routine and I/O controller (IOC) etc. among the ROM, device operation of the various programs etc. of the above-mentioned CPU of storage control in advance.As functional structure, comprise master control part 51a, angle of attack configuration part 51b, storage part 52c.
Above-mentioned master control part 51a according to program stored in advance, through the motor of the various assemblies of control circuit 61 unified controls etc., carries out a series of printing operation with this, carries out the calculation of various necessity simultaneously in this printing operation.Particularly, control part main body 51, be connected with above-mentioned input unit 58 and display unit 59, also be connected with the image processing circuit 62 of the control circuit 61 that is used to control various motor etc., above-mentioned camera 41a, 41b and illumination control circuit 63 etc. simultaneously, master control part 51a, through above-mentioned input unit 58, display unit 59, control circuit 61, image processing circuit 62 and illumination control circuit 63, control the running of each assembly.
In addition, in Fig. 7,, for convenience, only the servomotor 82 that drives the 2nd back shaft 77 is illustrated as servomotor.But also comprise the motor that drives other various assemblies here, for example, drive the motor of sweeper 9, drive the not shown motor that camera head 40 makes it move along X-direction, the motor 37 of camera assembly 8, each drive unit of the X-axis of 4 shaft assemblies 10, Y-axis, Z axle and R axle, the various actuators such as lowering or hoisting gear of upstream side conveyer belt 2A, downstream conveyer belt 2C, main belt 2B, scraper plate 86.Above-mentioned various actuator is if adopt Motor Drive then to comprise various motor, if then comprise set electronic switching valve in pneumatic circuit (pneumatic circuit) way when being drive source with the cylinder.
Above-mentioned angle of attack configuration part 51b suitably sets the angle of attack according to printed state, so that keep certain from the transfer printing amount of the paste of matte 25, and drive control the 2nd back shaft 77, and so that scraper plate 86 constitutes the angle of attack of regulation with respect to matte 25.That is, the storage part 51c in control part main body 51 described later stores the data relevant with the angle of attack, and reads the related data of the angle of attack from this storage part 51c, thus with scraper plate 86 with respect to the angle initialization of matte 25 the angle of attack in regulation.
Particularly, at storage part 51, angle of attack data when storing common printing, be the data of common printing angle θ, and after cleaning by 9 pairs of mattes 25 of sweeper, during the substrate W of printing regulation number at the angle of attack data of each substrate, be initial print angle θ n (n=1,2,3 ...) data.Therefore, angle of attack configuration part 51b, when printing usually, from storage part 51c, read the data of common printing angle θ, the angle of attack of scraper plate 86 is set at common printing angle θ, clean after the operation, from storage part 51c, read the data that the N after the cleaning opens the pairing initial print angle of substrate W θ n, and the angle of attack of scraper plate 86 is set at initial print angle θ n.
At this, after matte 25 cleaned, paste accompanying on the peristome of matte 25 was removed, therefore, if print with common printing angle θ, the transfer printing amount of paste before the transfer printing amount of substrate W will be less than cleaning then.Therefore, keep certain to the transfer printing amount of substrate W in order to make paste, the angle of attack in the time of need making the angle of attack after the cleaning less than printing usually, thus the transfer printing amount of paste is increased.That is, initial print angle θ n is set at less than the common value of printing angle θ.Then, at the 1st substrate W after cleaning, the angle of attack is set at less than the common initial print angle θ 1 of printing angle θ, at the 2nd substrate W after cleaning, consider the attachment state of the paste on the matte 25, the angle of attack is set at less than common printing angle θ greater than the initial print angle θ 2 of initial print angle θ 1.That is, in the present embodiment, initial print angle θ 1, θ 2 ... the value of θ n progressively increases in this order.That is, the value of initial print angle θ n is step by step near common printing angle θ.
As mentioned above, above-mentioned storage part 51c, be used for storing the necessary various data of presswork of this printing equipment, as the data relevant with the angle of attack, the data relevant with the production number of substrate W are with the relevant data of number of printed base plate W after the cleaning, production routine, the information relevant with the drive condition of each assembly, the relevant information of matte 25, the relevant information of substrate etc.
Below, in conjunction with the flow chart of Fig. 8～Figure 10, describe with regard to the control of the printing operation of 50 couples of substrate W of above-mentioned control device.
Fig. 8 represents flow chart that a succession of printing operation is controlled according to time series.
This printing equipment when beginning to produce, at first reads in suitable production routine, and to the count value P of the production number that is used for memory substrate W reset (P=0) (step S1, S2).
Then, the substrate W mounting that will come from upstream side conveyer belt 2A conveyance is moved into operation (step S3) with what this finished substrate W, and is passed through clamp mechanism 4 fixing base W to main belt 2B.Particularly, mounting table 20 is risen, moved into the substrate W of main belt 2B with this lifting, 5 couples of substrate W position by detent mechanism, and by clamp mechanism 4 chucking substrate W (step S4).
Then, by substrate identification camera 41b and matte identification camera 41a, reference mark on the shooting substrate W and the reference mark on the matte 25, thus discern (step S5, S6) through 62 pairs of marks of image processing circuit, adjust substrate W and matte 25 positions (step S7).That is, make 10 runnings of 4 shaft assemblies, substrate W and print station 3 are together risen, thereby make substrate W from downside and matte 25 overlapping (step S4).At this moment, can obtain the relative position relation of substrate W and matte 25, and, drive control 4 shaft assemblies 10 etc., substrate W be located with respect to matte 25 with this according to this position relation according to the recognition result of the reference mark among step S5, the S6.
Below, the printing operation of step S8 is described.Fig. 9 is the flow chart of the subprogram of step 8.During this is handled, after matte 25 cleaned, with initial print angle θ n (n=1,2,3 ... X) print until X and open substrate, promptly the situation during for X describes to initial print running setting value.
At first, judge that whether aforesaid substrate W is by sweeper 9 cleanings (step S21).Particularly, can judge that if there is not mark E (E=0), then be judged as common printing, in the direction that step S21 enters NO, the angle of attack of scraper plate 86 is set to common printing angle θ by cleaning end mark E.That is, angle of attack configuration part 51b reads the data of common printing angle θ from storage part 51c, and rotating drive the 2nd back shaft 77 is set at common printing angle θ with the angle of attack of scraper plate 86.
In addition, if cleaning end mark E (E=1) then is judged as the printing after cleaning finishes, the direction that enters YES at step S21, thus whether the number of judging the substrate W after cleaning finishes is below the initial print running setting value X.Particularly, count value C and the initial print running setting value X that storage cleaning is finished the number of the printed substrate W in back compares (step S22).At this, if count value C is below the initial startup setting value X, promptly, after cleaning finishes, the substrate W that is located with respect to matte 25 is that C opens that (during the substrate W of C≤X), step 22 enters the direction of YES, and the angle of attack will be set at initial print angle θ c (step S23).Then, count value C becomes C+1, cleaning is finished the number of the printed substrate W in back and counts (step S24).In addition, at step S22, if count value C is greater than initial print running setting value X, promptly, after cleaning finished, the substrate W that is located with respect to matte 25 was that C opens that (during the substrate W of C＞X), step S22 enters the direction of NO, end mark E (E=0) is cleaned in cancellation, and the angle of attack of scraper plate 86 is set at common printing angle θ (step S27, S28).
Then, after the attack angle theta of scraper plate 86, θ n are set,, make scraper plate 86 with matte 25 butts and print by driving control servomotor 23.That is, the pressure (squeegee pressure) of control scraper plate 86 and matte 25 makes scraper plate 86 slide along the surface of matte 25 simultaneously, prints (step S25, S26) with this, then finishes a series of printing operation.
As mentioned above, finish after the printing operation of the step S8 among Fig. 8, operate 4 shaft assemblies 10 substrate W and print station 3 together descended, carry out from matte 25 separately substrate W from version operation (step S9), remove fixing (step S10) to substrate W thereby remove clamp mechanism 4.Then, the substrate that finishes printing from main belt 2B conveyance to downstream conveyer belt 2C, thereby carry out substrate W take out of operation (step S11).
Then, at step S12, carry out periodicity cleaning operation.At this, Figure 10 is the flow chart of the subprogram of cleaning operation.
Step S31 in Figure 10 judges whether matte 25 is cleaned.Particularly, judge,, then enter the direction of YES, begin cleaning operation (step S32) at step S31 if reached the condition that matte 25 is cleaned according to the conditions such as substrate W of whether having produced the regulation number.Particularly,, sweeper 9 and this crossbeam 36 are together moved back and forth along Y direction, make sweeper head 44 from side contacts matte 25 down and slided simultaneously, thereby clean operation by driving control crossbeam 36.Then, the count value C of the number of the substrate W after the expression cleaning finishes becomes C=1, occurs cleaning end mark E (E=1) (step S33) simultaneously, thereby finishes the cleaning operation.In addition, if do not reach the condition of cleaning, then step S31 enters the direction of NO, does not just finish the cleaning operation thereby do not clean.
As mentioned above, after the cleaning operational processes of step S12 finishes, the count value P of the production number of memory substrate W is set at P+1 (step S13), will produces number P and compare (step S14) with predetermined production number.If do not arrive the predetermined number of producing, then step S14 enters the direction of YES, begins to repeat above-mentioned processing from above-mentioned steps S3, if reached predetermined production number, then completed product run.
As mentioned above, adopt screen printing apparatus of the present invention, can be after the cleaning of matte 25, the angle of attack of scraper plate 86 is set to the initial print angle of the transfer printing amount of paste greater than the transfer printing amount of the common printing angle that sets under the common printing state, therefore, at the substrate W that just finishes to clean, can transfer printing paste during more than printing usually.Therefore, even removing by cleaning operation after cleaning that the paste that adheres on matte 25 peristomes reduces the transfer printing amount of paste just finished, also can the enough pastes of transfer printing, keep certain so that be transferred to the transfer printing amount that is transferred to the paste on the substrate W after the transfer printing amount of the paste on the substrate W has just finished with cleaning before the cleaning.Therefore, need not to reduce production efficiency, can obtain the stable printing result.
In addition, in the above-mentioned embodiment, each substrate W after just just having finished at cleaning, the example that progressively increases initial print angle θ n is illustrated, but screen printing apparatus of the present invention, also above-mentioned initial print angle θ n can be set at angle [alpha] (α is the fixed value of α＜θ) and print, the N after cleaning finishes opens substrate W.At this moment, owing to the initial print angle [alpha] that adopts the transfer printing amount greater than the transfer printing amount of common printing angle θ, therefore also can avoid causing the uneven problem of printing quality because of the transfer printing amount after the cleaning end reduces.
In addition, in the above-described embodiment, to printing with initial print angle θ n, the example that X after cleaning finishes opens substrate W (initial print running setting value X) is illustrated, but,, have no particular limits for initial print running setting value X.For example, the 1st substrate W after also can only finishing cleaning prints with initial print angle θ 1, prints with common printing angle θ since the 2nd substrate W.
In addition, in the above-described embodiment, use the example of the data of the initial print angle θ n that is input to storage part 51c in advance to be illustrated at initial print angle θ n, but also can use the input value of the initial print angle θ n that imports by the operator at every substrate W.
Claims (3)
1. screen printing apparatus is characterized in that:
Under the overlapping state of substrate and matte, make the surperficial butt of scraper plate and matte, and move back and forth, thus the paste on the matte is transferred on the substrate,
This screen printing apparatus comprises,
Scraper component keeps above-mentioned scraper plate can adjust above-mentioned scraper plate with respect to the state of the angle of attack on above-mentioned matte surface, and makes this scraper plate can carry out relative moving back and forth with respect to above-mentioned matte;
Control device is set to predetermined angular with the above-mentioned angle of attack, controls printing operation with this;
Clearing apparatus is used to remove accompanying paste on the matte after the printing;
Above-mentioned control device after above-mentioned clearing apparatus has cleaned matte, is set to the above-mentioned angle of attack initial print angle of the transfer printing amount of paste greater than the transfer printing amount of common printing angle.
2. screen printing apparatus according to claim 1 is characterized in that:
Above-mentioned control device is set to the above-mentioned angle of attack after the above-mentioned initial print angle, when being printed onto the substrate of regulation number, the above-mentioned angle of attack is set to common printing angle.
3. screen printing apparatus according to claim 1 is characterized in that:
Above-mentioned control device is set at the above-mentioned angle of attack after the above-mentioned initial print angle, at each substrate, the angle of attack progressively is set to above-mentioned common printing angle from above-mentioned initial print angle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006065864 | 2006-03-10 | ||
| JP2006-065864 | 2006-03-10 | ||
| JP2006065864A JP4932285B2 (en) | 2006-03-10 | 2006-03-10 | Screen printing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101032880A true CN101032880A (en) | 2007-09-12 |
| CN101032880B CN101032880B (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100854238A Active CN101032880B (en) | 2006-03-10 | 2007-03-05 | Screen printing device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4932285B2 (en) |
| CN (1) | CN101032880B (en) |
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| CN102092188A (en) * | 2010-10-20 | 2011-06-15 | 天津市中环高科技有限公司 | Process for cleaning high-precision screen printing plates |
| CN102858540A (en) * | 2010-04-27 | 2013-01-02 | 富士机械制造株式会社 | Screen printing device |
| CN103158341A (en) * | 2011-12-12 | 2013-06-19 | 雅马哈发动机株式会社 | Printing apparatus and printing method |
| CN103619593A (en) * | 2011-06-21 | 2014-03-05 | 雅马哈发动机株式会社 | Screen printing apparatus |
| US8863659B2 (en) | 2010-04-27 | 2014-10-21 | Fuji Machine Mfg. Co., Ltd. | Screen printing line and screen printing method |
| US8919248B2 (en) | 2010-04-27 | 2014-12-30 | Fuji Machine Mfg. Co., Ltd. | Screen printing machine |
| US9296198B2 (en) | 2009-12-24 | 2016-03-29 | Yamaha Hatsudoki Kabushiki Kaisha | Screen printing apparatus |
| CN113474172A (en) * | 2019-03-20 | 2021-10-01 | 松下知识产权经营株式会社 | Screen printing apparatus and screen printing method |
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| JP3384414B2 (en) * | 1993-09-22 | 2003-03-10 | ソニー株式会社 | Solder screen printing method |
| JPH07266538A (en) * | 1994-03-31 | 1995-10-17 | Murata Mfg Co Ltd | Screen printing method |
| JP3685097B2 (en) * | 2001-07-12 | 2005-08-17 | 松下電器産業株式会社 | Screen printing apparatus and screen printing method |
| CN2637166Y (en) * | 2003-07-22 | 2004-09-01 | 创宇科技工业股份有限公司 | Improvement of Squeegee Control Device for Screen Printing |
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| CN102858540A (en) * | 2010-04-27 | 2013-01-02 | 富士机械制造株式会社 | Screen printing device |
| CN102858540B (en) * | 2010-04-27 | 2014-07-02 | 富士机械制造株式会社 | Screen printing device |
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| CN103619593A (en) * | 2011-06-21 | 2014-03-05 | 雅马哈发动机株式会社 | Screen printing apparatus |
| CN103158341A (en) * | 2011-12-12 | 2013-06-19 | 雅马哈发动机株式会社 | Printing apparatus and printing method |
| CN113474172A (en) * | 2019-03-20 | 2021-10-01 | 松下知识产权经营株式会社 | Screen printing apparatus and screen printing method |
| CN114786362A (en) * | 2021-12-02 | 2022-07-22 | 恩和 | 3D printing solder paste printing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101032880B (en) | 2012-11-21 |
| JP4932285B2 (en) | 2012-05-16 |
| JP2007237668A (en) | 2007-09-20 |
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