CN102139555B - screen printing device, paste material feeding method and manufacturing method of printing object - Google Patents
screen printing device, paste material feeding method and manufacturing method of printing object Download PDFInfo
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- CN102139555B CN102139555B CN201010585287.0A CN201010585287A CN102139555B CN 102139555 B CN102139555 B CN 102139555B CN 201010585287 A CN201010585287 A CN 201010585287A CN 102139555 B CN102139555 B CN 102139555B
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- creme
- scraper
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- 238000007639 printing Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000007650 screen-printing Methods 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 title abstract description 6
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims description 78
- 229910000679 solder Inorganic materials 0.000 abstract description 141
- 238000000576 coating method Methods 0.000 abstract description 6
- 239000006071 cream Substances 0.000 description 77
- 239000000758 substrate Substances 0.000 description 53
- 238000012545 processing Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Screen Printers (AREA)
Abstract
The invention provides a screen printing device which can realize the efficiency for process time and can form a paste material with a uniform rolling diameter in the length direction of a scraper during a paste material coating process, a paste material feeding method and a manufacturing method of a printing object. In the embodiment, solder pastes are not fed continuously to two regions A and B, are fed to the region A in the Nth feeding and are fed to the region B in the N+1th feeding. The efficiency for process time can be realized by alternately feeding solder pastes to different regions A and B at different time, and a solder paste with a uniform rolling diameter can be formed in the length direction of the scraper during the paste material coating process.
Description
Technical field
The present invention relates to the manufacture method of the silk-screen printing device of the creme such as printing soldering paste on object, creme supply method and object.
Background technology
In silk-screen printing device, placement substrate under the silk screen (mask plate) forming multiple hole is also coated with creme on this silk screen, thus optionally supplies creme in substrate by this some holes.By printing creme with various printed patterns on substrate like this.
Solder printing machine such as described in patent document 1, such as, as shown in its Figure 18, possesses the solder feedway of supply solder cream and is arranged at the scraper of solder feedway bottom.Scraper is arranged to removable, longer in the direction shape vertical with its moving direction.Solder cream is supplied between two panels scraper from the pipe of solder feedway, is coated with while scraper movement by this scraper on mask plate.Liftable is arranged to by scraper, alternatively uses respectively in the reciprocating action Zhong Wang road when being coated with and return road.
The solder supplied by pipe in the solder printing machine of patent document 1 is rolled by scraper, needs elapsed time being deployed in width (width in the direction vertical with the scraper moving direction) equal length with object and substrate.Such as during substrate large area, this problem becomes more remarkable.
Further, when once supplying a large amount of solder from the pipe of above-mentioned solder feedway, solder launches uneven on the length direction of scraper, and the diameter that rolls of solder produces deviation at its length direction.
Prior art document
Patent document 1 Japanese Unexamined Patent Publication 2004-306102 publication.
Summary of the invention
In view of the foregoing, the object of the present invention is to provide a kind of efficient activity that can realize the processing time, and the manufacture method of silk-screen printing device, creme supply method and the object with the creme rolling diameter uniformly can be formed at the length direction of scraper when being coated with creme.
For reaching above-mentioned purpose, the silk-screen printing device that the present invention one mode relates to comprises supporting mechanism, silk screen, scraper, feed unit, travel mechanism and control unit.
Described supporting mechanism is used for supporting printing object.
Described silk screen is oppositely disposed with the object supported by described supporting mechanism.
Described scraper is configured on described silk screen.
Described feed unit is set to move along the length direction of described scraper, for supplying creme in described silk screen.
Described travel mechanism moves described scraper, launches on described silk screen to make the described creme be supplied to.
The movement of described control unit to described feed unit controls, so that by described feed unit optionally to described silk screen supplies described creme along multiple regions that the described length direction of described scraper presets.
Feed unit does not such as make service time exceed time so far, and supplies creme several times at different time, thus can realize the efficient activity in processing time, and, can be formed at the length direction of scraper and have the creme rolling diameter uniformly.
Described travel mechanism can move back and forth by scraper described in the chien shih of primary importance on described silk screen and the described second place.At this moment, described control unit is during the first reciprocating action of described scraper, described feed unit is made to supply described creme to the first area in described multiple region, wherein, during this first reciprocating action for described scraper mobile from described primary importance after turn back to described primary importance till during; During second reciprocating action carried out with described first reciprocating action different time of described scraper, described feed unit is made to supply described creme to the second area different from first area in described multiple region, wherein, during this second reciprocating action for during till turning back to described primary importance after mobile from described primary importance.
Supply creme when different time carries out reciprocating action in zones of different as described above by scraper, even if during scraper repeatedly reciprocating action, also can be formed at the length direction of scraper and there is the creme rolling diameter uniformly.
Described silk-screen printing device can carry out printing treatment successively to the multiple described object be transported to successively in described silk-screen printing device.At this moment, after being terminated by the printing treatment of the first object in the described object carried successively to the printing treatment of next second object starts during, described control unit makes described feed unit supply described creme.That is, utilize supply creme by feed unit the swap time of the object in silk-screen printing device.Therefore, it is possible to improve the time efficiency of printing treatment.
Feed unit can supply described creme to point-like on described silk screen.By like this, do not need the blowing unit of the creme of this feed unit to divide and formed longer along the length direction (longitudinal direction) of scraper.Therefore, the maintenance such as the cleaning transfiguration of feed unit is easy.
The creme supply method that the present invention one mode relates to is that wherein scraper is configured on the silk screen relative with object to the first area supply creme in multiple regions that the length direction along scraper presets.
By described scraper, the described creme being fed into described first area is launched on described silk screen.
Supply described creme to the second area in described multiple region, described second area is the region different from described first area on described silk screen.
By described scraper, the described creme being fed into described second area is launched on described silk screen.
Such as feed unit does not make service time once exceed time so far, and supplies creme respectively in these two regions at different time.By like this, the efficient activity in processing time can be realized, and can have in the length direction formation of scraper the creme rolling diameter uniformly.Creme can be supplied on silk screen to point-like.
In above-mentioned supply method, in order to make described creme be deployed on described silk screen, described scraper can perform the first reciprocating action, mobile from the described primary importance on described silk screen, turns back to described primary importance after the second place is turned back.And, be deployed on described silk screen to make described creme, described scraper can also perform the second reciprocating action carried out with described first reciprocating action different time, mobile from the described primary importance on described silk screen, turns back to described primary importance after the second place is turned back.During described first reciprocating action, supply described creme in described first area, during described second reciprocating action, supply described creme in described second area.
Printing treatment can be carried out successively to multiple described object.At this moment, terminate to play the printing treatment starting Next second object to the printing treatment of the first object in described multiple object before, described creme is supplied by described feed unit.
The manufacture method of the object that the present invention one mode relates to is that described scraper is configured on the silk screen relative with object to the first area supply creme in multiple regions that the length direction along scraper presets.
The described creme being fed into described first area is deployed on described silk screen by described scraper.
Supply described creme to the second area in described multiple region, described second area is the region different from described first area on described silk screen.
The described creme being fed into second area is deployed on described silk screen by described scraper.
The effect of invention
As mentioned above, the efficient activity in processing time can be realized according to the present invention, and, can be formed at the length direction of scraper during coating creme and there is the creme rolling diameter uniformly.
Accompanying drawing explanation
Fig. 1 is the schematic side elevation that the silk-screen printing device related to as one embodiment of the present invention illustrates such as solder print device;
Fig. 2 is the schematic plan view of solder print device shown in Fig. 1, wherein comprises the block diagram of the Control system architecture that this solder print device is shown;
Fig. 3 is the schematic diagram of feed unit;
Fig. 4 is the diagrammatic side view of doctor unit;
Fig. 5 is the schematic isometric that a doctor unit is shown;
Fig. 6 is the process chart of the action of solder print device;
Fig. 7 is the figure of the solder print device for illustration of action;
Fig. 8 is the figure of the solder print device for illustration of action;
Fig. 9 is the figure of the solder print device for illustration of action;
Figure 10 is the figure of the solder print device for illustration of action;
Figure 11 is the figure of the solder print device for illustration of action;
Figure 12 is the figure of the solder print device for illustration of action;
Figure 13 is the figure of the solder print device for illustration of action;
In Figure 14, (A) and (B) is the figure that supply solder cream position is described;
Figure 15 supplies the flow chart of solder cream time in the flow chart shown in Fig. 6 for ease of understanding; And
Figure 16 is the enlarged side view of scraper and silk screen.
Detailed description of the invention
With reference to the accompanying drawings embodiments of the present invention are described.
[structure of solder print device]
Fig. 1 is the schematic side elevation that the silk-screen printing device related to as one embodiment of the present invention illustrates such as solder print device.Fig. 2 is the schematic plan view of solder print device 100 shown in Fig. 1, wherein contains the block diagram of the structure of the control system for illustrating this solder print device 100.This solder print device 100 is the devices solder of paste and solder cream being printed in the circuit substrate W as object.In the following description, illustrate for ease of understanding, easily using the front portion of the right side of Y direction in Fig. 1 and 2 as solder print device 100, left side is as the rear portion of solder print device 100.
Solder print device 100 possesses table mechanism 30 as the supporting mechanism of supporting substrate and silk screen 5, table mechanism 30 is placed circuit substrate W, and silk screen 5 is oppositely disposed with the circuit substrate W supported by table mechanism 30.Further, solder print device 100 possesses in the toe lateral of solder print device 100: be configured at the doctor unit 20 on silk screen 5 and make this doctor unit 20 along the scraper moving mechanism 19 of Y direction movement; Possess in the rear portion side of solder print device 100: the feed unit 10 of supply solder cream on silk screen 5 and make feed unit 10 along the feed unit travel mechanism 18 of X and Y-axis movement.
Silk screen 5 has the mask portion 5b in such as framework 5a and framework 5a.The top of table mechanism 30 is provided with silk screen supporting mechanism 6, for fixing and supporting the framework 5a of silk screen 5.And, not shown silk screen 5 and silk screen supporting mechanism 6 etc. in fig. 2.
Circuit substrate W has multiple conductive welding pad (pad) i.e. pad (land), is coated on this pad by solder cream by mask portion 5b.That is, be provided with multiple holes (with reference to Figure 16) 5c corresponding with the configuration pattern of the pad of circuit substrate W in mask portion 5b, supply solder cream P (with reference to Figure 16) by this some holes 5c on pad from mask portion 5b.
Table mechanism 30 has: mounting table 32, for placing circuit substrate W; Clamp system 31, for clamping the both sides of the circuit substrate W that mounting table 32 is placed; And driver element 33, move at X, Y and Z axis for making mounting table 32.Clamp system 31 is by runnings such as the such as not shown actuators with spring.Mounting table 32 can have for the device by vacuum cup holding circuit substrate W.
Driver element 33 by moving mounting table 32 at X and Y-axis, relative on silk screen supporting mechanism 6 support silk screen 5, alignment circuit substrate W in X-Y plane.Further, driver element 33, by Z-direction lifting mounting table 32, makes the circuit substrate W that mounting table 32 is placed be contacted with on silk screen 5.
As shown in Figure 2, feed unit travel mechanism 18 is configured at the top of silk screen 5.Feed unit travel mechanism 18 possesses: X-axis travel mechanism 16, moves along X-direction for making feed unit 10; And guide rail 17a, arranging along this X-axis travel mechanism 16, moving along X-direction for guiding feed unit 10.Further, feed unit travel mechanism 18 possesses: Y-axis moving mechanism 17, moves along Y direction for making feed unit 10; And guide rail 17a, arranging along Y-axis moving mechanism 17, moving along Y direction for guiding feed unit 10.Two guide rail 17a are provided with in Y-axis moving mechanism 17.X-axis travel mechanism 16 is connected to these guide rails 17a.
X-axis travel mechanism 16 has not shown cylinder, is as followsly positioned in the X-axis direction on two positions.Y-axis moving mechanism 17 is ball screw drive mechanism, but can replace with driving mechanisms such as band, rack-and-pinion or line style engines.
Fig. 3 is the schematic diagram of feed unit 10.Feed unit 10 possess storage solder cream container 13, from container 13 opening portion 13a insert piston 3, be installed on the pipe 14 of the lower part of piston 3 and the lift motor 2 at Z-direction boost container 13.
The opening portion 13a that container 13 is supported by the support member 12 (with reference to Fig. 1 and 2) being connected to above-mentioned feed unit travel mechanism 18 and makes container 13 downward.Further, container 13 is supported in support member 12, and the driving by lift motor 2 utilizes the liftings such as not shown riser guide.The central authorities of piston 3 are provided with the through hole 3a extended at above-below direction, and this through hole 3a is communicated with the inside of pipe 14.
The bottom of pipe 14 is provided with the switch block 4 of the bottom that can clamp this pipe 14.Switch block 4 is moved in the horizontal direction by cylinder 7, thus grip tube 14 and block the opening of bottom, and, by removing this clamping and this opening open.Switch block 4 grip tube 14, is cut off the solder cream that will hang from pipe 14, is limited supply solder cream by above-mentioned action on silk screen 5 by pipe 14.
In order to improve convenience, directly can arrange commercially available container 13, concrete, feed unit 10 is provided with the not shown installing component for installing container 13 at support member 12.
In such feed unit 10, container 13 is driven by lift motor 2 and declines, and relatively piston 3 inserts inner by container 13 opening portion 13a.Insert in container 13 by this piston 3, in container 13, produce pressure, by this pressure, the solder cream in container 13 is supplied on silk screen 5 by the through hole 3a of piston 3 and pipe 14 point-like.
Point-like supply solder cream means that solder cream is to see that at X-Y plane impartial in X and Y direction essence or close to equal-sized bulk is supplied on silk screen 5.Such as, substrate length (or the length on long limit) within 1m time (such as 750mm), the solder cream of point-like supply is 10mm ~ 30mm in the size of this X-axis and Y direction, but is not limited to this scope.The amount of the unquestionable solder cream according to supplying from feed unit 10 of this scope and different.The viscosity of solder cream uses the material of 200 (Pas) left and right, but is not limited to this.
And feed unit 10, outside lift motor 2, can also possess and make container 13 rotate in X-Y plane while the driving mechanism that is elevated.Container 13 rotates while decline and relatively insert piston 3 in container 13, thus is applied to the power of container 13 when can alleviate insertion.
As shown in Figure 2, doctor unit 20 drives as described above by scraper moving mechanism 19, and this scraper moving mechanism 19 shares the guide rail 17a of above-mentioned Y-axis moving mechanism 17.Scraper moving mechanism 19 moves along guide rail 17a, has the frame parts 9 supporting doctor unit 20.The motor becoming the drive source of scraper moving mechanism 19 is different from the motor of the drive source of the Y-axis moving mechanism 17 becoming feed unit 10, independently drives feed unit 10 and scraper 21 (21a and 21b).Scraper moving mechanism 19 is also similarly ball screw drive mechanism with the Y-axis moving mechanism 17 of the travel mechanism of above-mentioned feed unit 10, but also can replace with driving mechanisms such as band, rack-and-pinion or line style engines.
Fig. 4 is the schematic side elevation for illustrating doctor unit 20.Doctor unit 20 such as has doctor blade holder 22 (22a and 22b), for making scraper 21 (front side scraper 21a and rear side scraper 21b) relative with silk screen 5, and to make these scrapers 21a and 21b keep scraper 21a and 21b along the moving direction of doctor unit 20 and the mode of Y direction arrangement.Further, doctor blade holder 22a and 22b keeps front side scraper 21a and rear side scraper 21b to make their length direction along X-direction.Doctor blade holder 22 is independently driven at above-below direction by not shown cylinder.
In the following description, for front side scraper 21a and rear side scraper 21b, only otherwise the difference both needing to illustrate, do not need to compare explanation, then the scraper of in both is described as scraper 21.
Fig. 5 is the schematic perspective view that a doctor unit 20 is shown.As shown in the figure, what doctor blade holder 22 such as kept scraper 21 to make the direct of travel of scraper 21 (in Fig. 5 right arrow shown in) faces oblique below.Symbol P represents the solder cream rolled on silk screen 5 by scraper 21.And as shown in Figure 5, doctor blade holder 22 keeps the whole of scraper 21 top along X-direction, but is not limited to this mode, only can keep the central portion of the X-direction on scraper 21 top or keep the many places such as central portion and both ends.
As shown in Figure 4, the side, rear side scraper 21b place in doctor unit 20 is provided with range sensor 57.Range sensor 57 measures this range sensor 57 and distance between the solder cream P rolled by front side scraper 21a.Range sensor 57 can use the optical sensor of such as reflection-type.This distance is measured, the solder cream P diameter that presumption front side scraper 21a rolls or amount by this range sensor 57.
As shown in Figure 1, solder print device 100 possesses moveable camera 58, and this camera 58 is configured in placement and the height and position be supported between the circuit substrate W of mounting table 32 and silk screen 5.In order to alignment circuit substrate W, camera 58 obtains the image of the alignment mark such as pre-set in circuit substrate W many places at X and Y direction two-dimensional movement.
Further, for moving into circuit substrate W to solder print device 100 and the not shown conveying device taking out of this circuit substrate W after this circuit substrate W printing terminates is connected to solder print device 100.Conveying device can use the device of such as band, roller mode, at X-direction delivery circuit substrate W as illustrated in fig. 1 and 2.
As shown in Figure 2, the control system of solder print device 100 possesses master computer 50, X-axis travel mechanism controller 51, Y-axis moving mechanism controller 52, feed unit controller 53, table mechanism controller 54, scraper moving mechanism controller 55 and doctor unit controller 56.
X-axis travel mechanism controller 51 controls the driving of the X-axis travel mechanism 16 of feed unit 10.Y-axis moving mechanism controller 52 controls the driving of the Y-axis moving mechanism 17 of feed unit 10.Feed unit controller 53 controls the driving of the lift motor 2, switch block 4 etc. of feed unit 10.Table mechanism controller 54 is controlled the driving in the horizontal plane of the mounting table 32 undertaken by table mechanism 30 and lifting driving.Scraper moving mechanism controller 55 controls the movement of doctor unit 20 along Y direction.Doctor unit controller 56 controls moving up and down of front side scraper 21a and rear side scraper 21b.
Master computer 50 is blanket controls above-mentioned each controller.Further, master computer 50 is also connected to range sensor 57 and camera 58.Master computer 50 receives the information obtained by range sensor 57 and camera 58, based on the process of the aftermentioned regulation of this information and executing.
Above-mentioned each controller with hardware implementing, also can realize with both software and hardwares.When realizing with both software and hardwares, this hardware at least comprises the memory device of storing software program.Master computer 50 too.In these master computer 50 and each controller, at least one works as control unit.
Above-mentioned hardware is typically via CPU (central processing unit, Central Processing Unit), MPU (microprocessor, Micro Processing Unit), RAM (random access memory, Random Access Memory), ROM (read-only storage, Read Only Memory), DSP (digital signal processor, Digital Signal Processor), FPGA (field programmable gate array, Field Programmable Gate Array), ASIC (special IC, Application Specific Integrated Circuit), other known hardware implementing such as network interface.Master computer 50 too.
[action of solder print device]
The action of the solder print device 100 with structure described above is described.Fig. 6 is process chart in this action.Further, Fig. 7 ~ 13 are the figure of the solder print device 100 for illustration of this action.In Fig. 7 ~ 13, (A-1) and (A-2) illustrates respectively at the side view of the solder print device 100 of mutually the same time and plane.Further, (B-1) and (B-2) illustrates too respectively at the side view of the solder print device 100 of mutually the same time and plane.Further, (B-1) and (B-2) of each figure of Fig. 7 ~ 13 middle diagram omitting silk screen 5, table mechanism 30 etc.
Such as connect the power supply of solder print device 100, pressed (ST101) such as printing start buttons by the not shown operation inputting part being located at the toe lateral of solder print device 100 by operator.Or, after ST110 described later, start the printing treatment (ST101) to circuit substrate W.
In the following description, mainly to from finish the printing treatment of initial one or more pieces circuit substrates W and new lower a slice circuit substrate W move into solder print device 100 the flow process that starts of moment of printing treatment be described.
If beginning printing treatment, then master computer 50 judges that doctor unit 20 posteriorly moves side from the toe lateral of solder print device 100 from now on, still in contrast (ST102).Such as, master computer 50 can the present position of doctor unit 20 judges by utilizing scraper moving mechanism 19 to confirm.
Doctor unit 20 is (ST102 is) when posteriorly side is moved from the toe lateral of solder print device 100, and the action of doctor unit 20 is as follows.That is, as shown in Fig. 7 (A-1) and (A-2) to Fig. 7 (B-1) and (B-2), front side scraper 21a declines, on front side of this, the lower end of scraper 21a is contacted with silk screen 5, is moved by scraper moving mechanism 19 along Y direction from anterior side direction rear portion side simultaneously.By like this, solder cream is deployed on silk screen 5, according to the printed patterns coating solder of regulation in circuit substrate W.
As described below, before the printing of ST101 starts, mounting table 32 is driven by driver element 33 and rises, and circuit substrate W contacts with the inner surface of silk screen 5.
And, in the present embodiment, moved from anterior side direction rear portion side by a scraper such as front side scraper 21a, complete the printing treatment of a slice circuit substrate W.Further, moved from rear side toe lateral by rear side scraper 21b, complete the printing treatment of another circuit substrate W.That is, the printing treatment of two panels circuit substrate W is completed by doctor unit 20 reciprocating action in the Y-axis direction.
Reciprocating action herein refers to that doctor unit 20 doctor unit 20 from original position moves along Y direction, and turns back in the position of the rear portion side of the rear end side corresponding to circuit substrate W, the action of reposition again.The original position of doctor unit 20 refer to front side scraper 21a be arranged in the position more corresponding than the front end (right-hand member of Fig. 1 and 2 circuit substrate W) with circuit substrate W more toe lateral time the position of doctor unit 20, the position of such as, doctor unit 20 shown in Fig. 1 and 2.
When above-mentioned ST102 is for being, master computer 50 setting is masked as vacation (ST103), and wherein, this mark is for judging the supply by feed unit 10 solder cream.Be masked as fictitious time, what measure (presumption) solder by range sensor 57 rolls diameter (ST104).Now, at least range sensor 57 works as measurement parts.
Master computer 50 judges whether to need to supply solder cream (ST105) by feed unit 10 based on the information that this rolls diameter.Such as, roll when diameter is greater than the threshold value preset and do not need to supply solder cream, need when it is less than threshold value to supply solder cream.When ST105 judges to need supply solder cream, master computer 50 sets above-mentioned being masked as true (ST106) in order to the process performed after aftermentioned ST111.
And at first at the power supply connecting solder print device 100, during initial driving scraper, solder cream is not supplied on silk screen 5, is therefore judged as YES at ST105.
Printing treatment terminates (ST107 is), then, as shown in Fig. 8 (A-1) and (A-2), carry out version separation (circuit substrate W is separated from silk screen 5).Like this as shown in Fig. 8 (B-1) and (B-2), taken out of the circuit substrate W (ST108) being always positioned over mounting table 32 by conveying device.As shown in Fig. 9 (A-1) and (A-2), solder print device 100 is moved into the circuit substrate W then carrying out printing treatment.Then, as shown in Fig. 9 (B-1) and (B-2), circuit substrate W is placed and is supported in (ST109) on mounting table 32.Solder print device 100 is transported to successively according to such circuit substrate W.
Then, as shown in Figure 10 (A-1) and (A-2), the aligning (ST110) of the substrate be placed on mounting table 32 is performed by camera 58 and table mechanism 30.Complete on time, return ST101.Then, as shown in Figure 10 (B-1) and (B-2), driven by table mechanism 30, circuit substrate W is contacted with on silk screen 5, is deployed on silk screen 5 by rear side scraper 21b solder cream.
In above-mentioned ST102, doctor unit 20 is (ST102's is no) when moving from the rear side toe lateral of solder print device 100, and master computer 50 judges whether to need to supply solder cream (ST111) on silk screen 5.That is, when the state of solder print device 100 is for state such as shown in Fig. 7 (B-1) and (B-2), master computer 50 receives by range sensor 57 (with reference to Fig. 4) information that solder cream rolls diameter, performs the judgement of above-mentioned ST103.
When not needing to supply solder cream (ST111's is no), as shown in Figure 10 (A-1), (A-2), (B-1) and (B-2), perform printing treatment.
(YES) when needing to supply solder cream in above-mentioned ST111, carries out process as described below.
When needing supply solder cream, moved to the position (ST112) of regulation by feed unit travel mechanism 18 feed unit 10.Figure 14 (A) and (B) are the figure for illustration of supply solder cream position.As shown in these Figure 14 (A) and (B) and Fig. 5, any one party of feed unit 10 in the region and region A and B of the point-like preset on silk screen 5 optionally supplies solder cream.And, the quality entity of typically solder cream PA and PB of supply area A and B is respectively fixing.
The position of these regions A and B is set according to the configuration of circuit substrate W and scraper 21 (rear side scraper 21b).When the X-direction center of circuit substrate W is consistent in fact with the X-direction center of rear side scraper 21b, the position of the X-direction of these regions A and B is to both ends lateral deviation from the position of predetermined distance from the center of scraper 21b on rear side of this.Predetermined distance is such as 100mm ~ 300mm, but is not limited to this scope.
Further, the position of the feed unit 10 in such as, X-direction from solder cream PA to region A when supplying is the original position of this X-direction.Then, the position to the feed unit 10 in X-direction during region B supply solder cream PB is become by the position of the X-axis travel mechanism 16 of feed unit travel mechanism 18, the feed unit 10 of such as above-mentioned air cylinder driven movement.
Further, as shown in Figure 14 (B), the Y direction position of region A and B is respectively the position of the rear portion side (rear portion side of solder print device 100) of the rear end side of such as circuit substrate W (in figure left side).
When being region A with reference to previous supply solder cream region after Fig. 5, ST112 (ST113 is), feed unit 10 moves to region B (ST114) by feed unit travel mechanism 18 specifically.On the other hand, when previous supply solder cream region is region B (ST113's is no), feed unit 10 moves to region A (ST115) by feed unit travel mechanism 18 specifically.Then, as shown in Figure 11 (A-1), (A-2), (B-1), (B-2), Figure 12 (A-1) and (A-2), feed unit 10 supplies the dotted region of solder cream PA or PB on region A or B and silk screen 5.After supply solder cream, as shown in Figure 12 (B-1) and (B-2), feed unit 10 returns the retreating position (original position) of rear portion side originally by the driving of feed unit travel mechanism 18.
Then, return ST101, as shown in Figure 13 (A-1), (A-2), (B-1) and (B-2), start printing treatment by front side scraper 21a.By utilizing the printing treatment of scraper 21a on front side of this, front side scraper 21a moves to the rear end side of circuit substrate W, then, as shown in dotted line in Figure 13 (B-2), the solder cream PA being supplied to region A merges with the solder cream P that front side scraper 21a rolls at present.By such action, the solder cream rolling diameter needed for having can be formed automatically.
According to the result of the judgement process of ST113, next time supplies solder cream to region B.
From Figure 10 ~ 12, from the printing treatment of current circuit substrate W terminate to next circuit substrate W printing treatment before, terminate the supply process of solder cream of feed unit 10.By like this, the time efficiency of printing treatment can be improved.Figure 15 is for ease of understanding the flow chart of this point.Typically be about 15s from the N time time of printing treatment to the N+1 time printing treatment, between this 15s, supply a solder cream to any one party in A and B of region.
As mentioned above, in the present embodiment, and discontinuous supply solder cream is in two region A and B, as present embodiment, and the supply area A when the N time supply, the supply area B when the N+1 time supply.By alternatively supplying solder cream at different time like this in zones of different A and B, service time once can be avoided longer than the time so far.Therefore, it is possible to realize the efficient activity in processing time, and, during coating creme, can be formed at the length direction of scraper and there is the creme rolling diameter uniformly.
Further, advantage as described below is had by such process.Such as, when being previously determined service time once, be difficult in two region A and B, supply solder cream continuously as described above.Now, temporarily solder print device 100 must be stopped.In the present embodiment, need not temporarily stop solder print device 100, can form at the length direction of scraper the solder cream having and roll diameter uniformly.
And then in the present embodiment, scraper 21 (first reciprocating action and with it in reciprocating action second reciprocating action that the different time carries out) when different time carries out reciprocating action supplies solder cream in region A and B of different 2.Even if by like this at scraper 21 during carrying out repeatedly reciprocating action, also can be formed at the length direction of scraper 21 and have the solder cream P rolling diameter uniformly.
Further, in the present embodiment, feed unit 10 is utilized to supply solder cream on silk screen 5 by pipe 14 point-like.That is, owing to not having to use such as long in the X-direction nozzle such as multiinjector types of nozzles, slit type nozzle, therefore feed unit 10 cleaning becomes easy.By labour and the time of maintenance can be alleviated like this.
Such as, when not being when supplying the structure of solder from pipe 14, such as, using the scraper module shown in Fig. 2,11 of patent document 1, time namely by device provisioning solders such as slit (groove) types of nozzles, there is the problem that this nozzle of cleaning is bothersome.In order to suppress scraper module blocked, the maintenance number of times forming scraper module in the construction and device of solder printing machine is relatively many.But, there is no such problem in the present embodiment.
Figure 16 is the enlarged side view of scraper 21 and silk screen 5.Angle between the face contacted with solder cream P of scraper 21 and silk screen 5 surface is attack angle theta, and θ is set as about 60 °.
If solder cream P to roll diameter too small, then sometimes can not fill the solder cream of substantial amount in the hole 5c of silk screen 5.Now, being attached to circuit substrate W pad etc., to become the amount of solder cream of the part of coating object insufficient and may become bad reason.On the other hand, the diameter that rolls of solder cream P changes, then the density of solder cream P, pressure (pressure to circuit substrate W pad) will be different.In view of these problems, need to make to roll diameter fixing as far as possible.
Other embodiment
Embodiment described in the present invention is not limited to embodiment described above, has other various embodiment.
In the above-described embodiment, solder cream is supplied alternately to region A and B successively.But, such as the N time supply time be region A, the N+1 time supply time be region A, N+2 time supply time be region B, N+4 time supply time be region A......, according to such A → A → B → A → A → B → ..., this supply method is also passable.The quality entity of the at this moment solder cream of supply area A and B is respectively fixing.
Or the number of times that the pattern setting such as also should be able to printed corresponding to circuit substrate W supplies to supply solder cream region or order etc.Such as described above, region A → A → B → A → A → B → ..., this supply method is applicable to the sum (total aperture area of passing hole) of the corresponding side opening of region A in the X-direction of the circuit substrate W situation more than the sum of region B.
According to like this, also the master computer 50 of solder print device 100 number of times, order etc. that supply multiple supply area can be changed according to the setting of user.Such as, can be the pattern of pattern, only supply area B of only supply area A.Or can for supplying the pattern of solder cream continuously to region A and B.
Being the mode that container 13 is elevated in above-mentioned feed unit 10, also can be the mode that piston 3 is elevated.Now, container 13 is supported for opening portion 13a upwards by support member 12, and container 13 bottom arranges squit hole, and piston 3 can be inserted in container 13 by this opening portion 13a.
Feed unit travel mechanism 18 carries out the location of feed unit 10 two positions by the driving of cylinder, supply solder cream is in two dotted region A and B.But feed unit 10 also can be positioned in the position of more than three, at this moment supply the dotted region of solder cream on more than three silk screens 5.
In the above-described embodiment, be provided with front side scraper 21a and rear side scraper 21b, but can be at least one scraper.Now, in reciprocating action, solder cream also can Jin Wang road or return road be launched on silk screen by this scraper.Or, even if scraper also such as namely can use the two sides of scraper in the inclination alternately changing scraper in road and return road of reciprocating action.Or, even during a scraper, can by this scraper in alternately 180 degree of rotations in X-Y plane in road and return road, thus solder cream launched toward road and return road.
Feed unit travel mechanism 18 or other above-mentioned driving mechanism are not limited to cylinder, such as, can use ball-screw, rack-and-pinion, band, line style engine etc.
Region A and B on silk screen 5 can not be point-like, such as, be the line-like area of the length direction along scraper.Now, feed unit 10 is moved by X-axis travel mechanism one edge X-direction and sprays solder cream, by being linearly supplied in the multiple regions (multiple line-like area) preset on silk screen 5 like this.Typically multiple line-like area is be divided into the region of two along its length at scraper center.Linearly supply solder cream and mean that the Y of the solder cream be supplied on silk screen 5 and the aspect ratio of X-direction are set as difference.This aspect ratio is set as such as more than 1: 1.5 (such as 1: 3,1: 5 etc.).
The mode of such wire supply solder cream is not only applicable to, to the situation of the region supply solder cream of two on silk screen 5, be applicable to the situation supplying solder cream to the region of more than three yet.Or also can be mixed with dotted region and line-like area in multiple region.
The mode of wire supply solder cream as above is not limited to the mode supplied by the feed unit 10 described in above-mentioned embodiment, can use the nozzle of such as slit type.
Use solder cream as creme in above-mentioned embodiment, but also can use scaling powder, insulating paste, other creme.
Symbol description
W... circuit substrate A, B... dotted region
5... silk screen 10... feed unit
18... feed unit travel mechanism 19... scraper moving mechanism
20... doctor unit 21... scraper
Scraper on rear side of scraper 21b... on front side of 21a...
30... table mechanism 50... master computer
53... feed unit controller 54... table mechanism controller
55... scraper moving mechanism controller 56... doctor unit controller
57... range sensor 100... printing equipment
Claims (5)
1. a silk-screen printing device, comprising:
Supporting mechanism, for supporting printing object;
Silk screen, is oppositely disposed with the object supported by described supporting mechanism;
Scraper, is configured on described silk screen;
Feed unit, is set to move along the length direction of described scraper, for supplying creme on described silk screen;
Travel mechanism, mobile described scraper is to make the described creme be supplied on described silk screen; And
Control unit, the movement of described control unit to described feed unit controls, so that the multiple regions on the described silk screen optionally preset to the described length direction along described scraper by described feed unit supply described creme,
Described travel mechanism makes to move back and forth between the primary importance of described scraper on described silk screen and the second place,
Described control unit is during the first reciprocating action of described scraper, described feed unit is made to supply described creme to the first area in described multiple region, wherein, during described first reciprocating action for described scraper move to from described primary importance turn back to described primary importance till during; And, described control unit is during second reciprocating action carried out with described first reciprocating action different time of described scraper, described feed unit is made to supply described creme to the second area different from first area in described multiple region, during described second reciprocating action for described scraper move to from described primary importance turn back to described primary importance till during
Described silk-screen printing device can carry out printing treatment successively to the multiple described object be transported to successively in described silk-screen printing device,
After being terminated by the printing treatment of the first object in the described object carried successively to the printing treatment of next second object starts during, described control unit makes described feed unit supply described creme,
Described control unit obtains by the information rolling diameter of the creme rolled, and the described supply of described creme is carried out in control when judging based on this information to need to supply creme.
2. silk-screen printing device according to claim 1, wherein,
Described feed unit supplies described creme to point-like on described silk screen.
3. a creme supply method, wherein,
First area supply creme in multiple regions that the length direction along scraper presets, described scraper is configured on the silk screen relative with object;
By described scraper, the described creme being fed into described first area is launched on described silk screen;
Supply described creme to the second area in described multiple region, described second area is the region different from described first area on described silk screen;
By described scraper, the described creme being fed into described second area is launched on described silk screen,
Described scraper performs from the primary importance on described silk screen, moves to the first reciprocating action turning back to described primary importance after the second place is turned back, to make described creme launch on described silk screen,
Described scraper performs from the described primary importance on described silk screen, moves to the second reciprocating action to turn back to described primary importance after the second place is turned back, that carry out with described first reciprocating action different time, launch on described silk screen to make described creme
During described first reciprocating action, supply described creme to described first area,
During described second reciprocating action, supply described creme to described second area,
Successively printing treatment is carried out to multiple described object,
After the printing treatment of the first object in described multiple object terminates to starting the printing treatment of next second object during, supply described creme,
Control unit obtains by the information rolling diameter of the creme rolled, and the described supply of described creme is carried out in control when judging based on this information to need to supply creme.
4. creme supply method according to claim 3, wherein,
Point-like described creme is supplied on described silk screen.
5. a manufacture method for object, wherein,
First area supply creme in multiple regions that the length direction along scraper presets, described scraper is configured on the silk screen relative with object;
By described scraper, the described creme being fed into described first area is launched on described silk screen,
Supply described creme to the second area in described multiple region, described second area is the region different from described first area on described silk screen;
By described scraper, the described creme being fed into described second area is launched on described silk screen,
Described scraper performs from the primary importance on described silk screen, moves to the first reciprocating action turning back to described primary importance after the second place is turned back, to make described creme launch on described silk screen,
Described scraper performs from the described primary importance on described silk screen, moves to the second reciprocating action to turn back to described primary importance after the second place is turned back, that carry out with described first reciprocating action different time, launch on described silk screen to make described creme
During described first reciprocating action, supply described creme to described first area,
During described second reciprocating action, supply described creme to described second area,
Successively printing treatment is carried out to multiple described object,
After the printing treatment of the first object in described multiple object terminates to starting the printing treatment of next second object during, supply described creme,
Control unit obtains by the information rolling diameter of the creme rolled, and the described supply of described creme is carried out in control when judging based on this information to need to supply creme.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-288300 | 2009-12-18 | ||
| JP2009288300A JP5724178B2 (en) | 2009-12-18 | 2009-12-18 | Screen printing apparatus and paste material supply method |
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| Publication Number | Publication Date |
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| CN102139555A CN102139555A (en) | 2011-08-03 |
| CN102139555B true CN102139555B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010585287.0A Expired - Fee Related CN102139555B (en) | 2009-12-18 | 2010-12-10 | screen printing device, paste material feeding method and manufacturing method of printing object |
Country Status (2)
| Country | Link |
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| JP (1) | JP5724178B2 (en) |
| CN (1) | CN102139555B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5832864B2 (en) * | 2011-11-14 | 2015-12-16 | 富士機械製造株式会社 | Screen printing machine |
| JP2013233673A (en) * | 2012-05-07 | 2013-11-21 | Panasonic Corp | Screen printer and screen printing method |
| JP6100905B2 (en) * | 2013-08-06 | 2017-03-22 | 富士機械製造株式会社 | Screen printing machine |
| TWI659784B (en) * | 2015-02-04 | 2019-05-21 | 萬潤科技股份有限公司 | Liquid material coating method and device |
| DE112019006502T5 (en) * | 2018-12-28 | 2021-09-23 | Panasonic Intellectual Property Management Co., Ltd. | Solder paste recovery device and screen printing device |
| CN115179645B (en) * | 2022-09-06 | 2022-12-20 | 徐州日托光伏科技有限公司 | SMT welding tin cream printing device with automatic feeding function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1796109A (en) * | 2004-12-13 | 2006-07-05 | 株式会社电装 | Screen printing machine and printing method thereof |
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| JPS63151836U (en) * | 1987-03-26 | 1988-10-05 | ||
| JPH01192556A (en) * | 1988-01-29 | 1989-08-02 | Yamatake Honeywell Co Ltd | Screen printing machine |
| JP2927796B2 (en) * | 1988-04-19 | 1999-07-28 | 大日本印刷株式会社 | Screen printing machine |
| JP2588801Y2 (en) * | 1992-08-31 | 1999-01-20 | 太陽誘電株式会社 | Screen printing equipment |
| JP3344829B2 (en) * | 1994-07-19 | 2002-11-18 | 松下電器産業株式会社 | Printing equipment |
| EP0768176A1 (en) * | 1995-10-10 | 1997-04-16 | Lucent Technologies Inc. | System and method for high resolution screen printing |
| JP2001315302A (en) * | 2000-05-10 | 2001-11-13 | Mitsubishi Electric Corp | Printer |
| JP2002307653A (en) * | 2001-04-12 | 2002-10-23 | Casio Comput Co Ltd | Printing method for conductive ink |
| JP4419749B2 (en) * | 2004-08-16 | 2010-02-24 | 株式会社村田製作所 | Screen printing method and screen printing apparatus |
| JP2009226776A (en) * | 2008-03-24 | 2009-10-08 | Yamaha Motor Co Ltd | Printer |
| JP4887324B2 (en) * | 2008-03-31 | 2012-02-29 | ヤマハ発動機株式会社 | Printing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1796109A (en) * | 2004-12-13 | 2006-07-05 | 株式会社电装 | Screen printing machine and printing method thereof |
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| JP特开2001-315302A 2001.11.13 * |
| JP特开2006-51757A 2006.02.23 * |
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| CN102139555A (en) | 2011-08-03 |
| JP5724178B2 (en) | 2015-05-27 |
| JP2011126207A (en) | 2011-06-30 |
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