CN105082732A - Solder printing press - Google Patents
Solder printing press Download PDFInfo
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- CN105082732A CN105082732A CN201410190406.0A CN201410190406A CN105082732A CN 105082732 A CN105082732 A CN 105082732A CN 201410190406 A CN201410190406 A CN 201410190406A CN 105082732 A CN105082732 A CN 105082732A
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- printing machine
- scraper plate
- circuit substrate
- measured value
- solder printing
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- Electric Connection Of Electric Components To Printed Circuits (AREA)
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Abstract
The invention provides a solder printing press, which comprises a photomask configured on a circuit board, a scraper for scraping paste solder into the photomask, a mobile device enabling the scraper to slide on the photomask, a pressing device for pressing the scraper sliding on the photomask onto the photomask, a sensor for determining pressure (i.e. printing pressure) of the pressing device and a processing device for judging whether a determined value of the sensor is in a normal range or not.
Description
Technical field
Technology disclosed herein relates to the technology of printing solder, particularly uses mask and scraper plate to print the technology (so-called serigraphy) of cream solder.
Background technology
Existing solder printing machine is recorded in Japanese Unexamined Patent Publication 2010-284874 publication.These solder printing facility are standby: be configured at the mask on circuit substrate; Cream solder brush is entered the scraper plate to mask; Make the mobile device that scraper plate slides on mask; And the press device scraper plate slided on mask pressed on mask.
Above-mentioned existing solder printing machine also possesses: the sensor measuring the pressing force of press device; And the treating apparatus of pressing force of press device is controlled according to the measured value of sensor.When the measured value of sensor is less than desired value, treating apparatus increases the pressing force of press device, and when the measured value of sensor is greater than desired value, treating apparatus reduces the pressing force of press device.
The power of the pressing force of press device and press device pressing scraper plate is commonly called " squeegee pressure ".Squeegee pressure is the important elements affecting printing quality, and inappropriate squeegee pressure can become the main cause causing printing bad.Therefore, in order to maintain printing quality, many existing solder printing machines are all formed in the mode of squeegee pressure being carried out to FEEDBACK CONTROL.But, in any case carry out FEEDBACK CONTROL to squeegee pressure, actual squeegee pressure all cannot be avoided to depart from desired value because of the variation of the reaction force such as caused by cream solder.Now, actual squeegee pressure also can depart from desired value sometimes widely, in that case, creates the bad possibility of printing and increases.But existing solder printing machine just carries out FEEDBACK CONTROL to squeegee pressure, even if the squeegee pressure of reality departs from desired value widely, also cannot identify it.
Summary of the invention
This description, in order at least reduce above-mentioned problem, discloses a kind of solder printing machine whether actual squeegee pressure is suitable that judges.
Disclosed in this description, solder printing facility are standby: be configured at the mask on circuit substrate; Cream solder brush is entered the scraper plate to mask; Make the mobile device that scraper plate slides on mask; The scraper plate slided is pressed on the press device on mask for mask; Measure the sensor of the pressing force (that is, squeegee pressure) of press device; And judge the treating apparatus of measured value whether in normal range (NR) of sensor.According to this formation, solder printing machine, when the squeegee pressure of reality deviate from normal range (NR), can identify this situation and inform such as operator.Thus, operator can utilize and such as visually check corresponding circuit substrate, thus confirms with or without printing bad.
Accompanying drawing explanation
Fig. 1 is the figure of the formation of the solder printing machine schematically showing embodiment.
Fig. 2 is the flow chart of the motion flow representing solder printing machine.
Fig. 3 is the figure of an example of the display frame represented shown by display unit.
Description of reference numerals
4 circuit substrates
10 printing machines
12 masks
14 scraper plates
20 scraper plate mobile devices
30 scraper plate press devices
34 squeegee pressure sensors
40 substrate transfer apparatus
42 baseplate support devices
46 substrate clamping devices
50 treating apparatus
52 memories
52a target value data
52b lower limit data
52c higher limit data
54 display unit
Detailed description of the invention
In an embodiment of this technology, be preferably, treating apparatus can store lower limit about the measured value of sensor and higher limit, and is judged as that when the measured value of sensor is the value between lower limit and higher limit the measured value of sensor is in normal range (NR).But treating apparatus does not necessarily store both lower limit and higher limit, also only can store the side in lower limit and higher limit simultaneously.
In an embodiment of this technology, be preferably, no matter how, mobile device all makes scraper plate slide into preposition to the judged result for the treatment of apparatus.That is, be preferably, in the way of solder printing machine printing solder on circuit substrate, even if the measured value of sensor deviate from normal range (NR), also can not interrupt the printing to this circuit substrate, and the printing to this circuit substrate can be completed.This is because even if when the measured value of sensor deviate from normal range (NR), it is bad sometimes also can not to produce printing, and can print exactly.
In the above-described embodiment, solder printing machine also can possess and to be moved into predetermined printing position by circuit substrate and by the Handling device that takes out of from printing position of circuit substrate after printing.In this case, when the measured value of sensor is judged as not in normal range (NR), the circuit substrate after printing did not take out of by Handling device before sending instruction by operator.According to this formation, when the measured value of sensor deviate from normal range (NR), operator easily can carry out the operation of the circuit substrate after checking printing.
In an embodiment of this technology, be preferably, solder printing machine also possesses the display unit shown the judged result for the treatment of apparatus.According to this formation, operator can learn whether actual squeegee pressure maintains in normal range (NR).
In the above-described embodiment, be preferably, display unit also shows the measured value (that is, actual squeegee pressure) of sensor.In this case, be preferably, the curve map of display unit to the relation represented between the measured value of sensor and wiper positions now shows.And be preferably, normal range (NR) is shown on this curve map by display unit simultaneously.
Embodiment
With reference to accompanying drawing, the solder printing machine 10 (following, sometimes referred to as printing machine) of embodiment is described.Printing machine 10 is the devices printing cream solder 6 on printed thing and circuit substrate 4.Usually, printing machine 10 and the illustrated electronic part mounting of omission are together for electronic component mounting production line.In electronic component mounting production line, first, printing machine 10 prints cream solder 6 on circuit substrate 4, and secondly, electronic part mounting installs multiple electronic component on the circuit substrate 4 being printed with cream solder.
As shown in Figure 1, printing machine 10 possesses mask 12, squeegee unit 16, scraper plate mobile device 20, scraper plate press device 30, squeegee pressure sensor 34, substrate transfer apparatus 40, baseplate support device 42, substrate clamping device 46, treating apparatus 50 and display unit 54.
Mask 12 is plate-shaped member, has the one or more opening 12a corresponding to printed patterns.Mask 12 is configured on printed thing and circuit substrate 4.The mask 12 of the present embodiment is the metal mask formed by metal material.Also can adopt the mask of plastic raw materials (PET material etc.), concrete material, the structure of mask 12 are not particularly limited.Suitably can adopt known various mask in the technical field of serigraphy.By solder feedway (omitting diagram), the surperficial 12b to mask 12 supplies appropriate cream solder 6.
Squeegee unit 16 possesses at least one scraper plate 14, and each scraper plate 14 can be made to retreat relative to mask 12.The parts into mask 12 (being accurately the opening 12a of mask 12) by sliding on the surperficial 12b of mask 12, cream solder 6 brushed by scraper plate 14.Squeegee unit 16 is installed on scraper plate mobile device 20 via scraper plate press device 30.Squeegee unit 16 is electrically connected with treating apparatus 50, and its action is controlled by treating apparatus 50.Concrete material, the structure of scraper plate 14 are not particularly limited.As an example, the scraper plate 14 of the present embodiment is formed by polyurethane.In addition, the printing machine 10 of the present embodiment possesses two scraper plates 14 according to moving direction, but squeegee unit 16 also can possess the scraper plate 14 of more than or three.
Scraper plate mobile device 20 is the devices making scraper plate 14 movement on the surperficial 12b of mask 12.Scraper plate mobile device 20 is electrically connected with treating apparatus 50, and its action is controlled by treating apparatus 50.The concrete formation of scraper plate mobile device 20 is not particularly limited.As an example, the scraper plate mobile device 20 of the present embodiment possesses guide rail 22, movable body 24, feed screw 26 and servo motor 28.Guide rail 22 extends abreast with the surperficial 12b of mask 12, and movable body 24 is supported for and can be moved.Servo motor 28 is connected with movable body 24 via feed screw 26.By this formation, when servo motor 28 makes feed screw 26 rotate, movable body 24 moves along guide rail 22.Movable body 24 is support scratch board unit 16 via scraper plate press device 30.Therefore, when scraper plate mobile device 20 makes movable body 24 move, squeegee unit 16 moves abreast with the surperficial 12b of mask 12, and scraper plate 14 slides on the surperficial 12b of mask 12.
Scraper plate press device 30 is the devices pressed on by the scraper plate 14 slided on the surperficial 12b of mask 12 on mask 12.Scraper plate press device 30 can carry out increase and decrease to its pressing force and regulate.In this manual, sometimes the pressing force of scraper plate press device 30 is called " squeegee pressure ".Scraper plate press device 30 is electrically connected with treating apparatus 50, and its action is controlled by treating apparatus 50.The concrete formation of scraper plate press device 30 is not particularly limited.As an example, the scraper plate press device 30 of the present embodiment is servo motor, is connected with squeegee unit 16 via feed screw 32.Feed screw 32 vertically extends with the surperficial 12b of mask 12, when scraper plate press device 30 (that is, servo motor) makes feed screw 32 rotate, squeegee unit 16 relative to mask 12 surperficial 12b and retreat.Scraper plate press device 30, by controlling the position of rotation of feed screw 32, can regulate squeegee pressure.In addition, scraper plate press device 30 also can utilize servoBcylinder to form.
Squeegee pressure sensor 34 measures the pressing force of scraper plate press device 30 and the sensor of squeegee pressure.Squeegee pressure sensor 34 is electrically connected with treating apparatus 50, and the measured value of squeegee pressure sensor 34 is imported into treating apparatus 50.The concrete formation of squeegee pressure sensor 34 is not particularly limited.As an example, the squeegee pressure sensor 34 of the present embodiment is load cell (such as, force cell), is configured between movable body 24 and scraper plate press device 30.
Substrate transfer apparatus 40 is moved into predetermined printing position from outside by circuit substrate 4 and the device externally taken out of from this printing position by the circuit substrate 4 after printing.Substrate transfer apparatus 40 is electrically connected with treating apparatus 50, and its action is controlled by treating apparatus 50.The concrete formation of substrate transfer apparatus 40 is not particularly limited.As an example, the substrate transfer apparatus 40 of the present embodiment is a pair ribbon conveyer of the carrying direction configured in parallel along circuit substrate 4.
Baseplate support device 42 supports the circuit substrate 4 being moved to printing position by substrate transfer apparatus 40 and circuit substrate 4 is configured at the device immediately below mask 12 from below.Substrate clamping device 46 to be clamped by the circuit substrate 4 supported by baseplate support device 42 from side and by circuit substrate 4 stationary device.Baseplate support device 42 and substrate clamping device 46 are electrically connected with treating apparatus 50, and their action is controlled by treating apparatus 50.The concrete formation of baseplate support device 42 and substrate clamping device 46 does not limit.As an example, the baseplate support device 42 of the present embodiment possesses the multiple supporting pins 44 that can retreat along the vertical direction, is formed in the mode lifted from substrate transfer apparatus 40 by circuit substrate 4.
Treating apparatus 50 is the devices of the action controlling printing machine 10.Treating apparatus 50 utilizes computer and forms, and has the memory 52 for storage of electronic information.Memory 52 at least can store: describe the target value data 52a of the desired value T of squeegee pressure, describe the higher limit data 52c of the higher limit Y of the lower limit data 52b of the lower limit X of squeegee pressure and description squeegee pressure.In addition, the production information data of memory 52 identifying information, the quantity of circuit substrate 4 that should print and so on that can also store other printing condition data, printing object and circuit substrates 4 of the translational speed and displacement and so on of scraper plate 14.Treating apparatus 50, based on the various data being stored in memory 52, controls the action of printing machine 10.
Display unit 54 is devices operator being shown to various information.In addition, the display unit 54 of the present embodiment is also receive the operating means from the various instructions of operator.The concrete formation of display unit 54 is not particularly limited.As an example, display unit 54 utilizes touch pad and forms.
Then, with reference to Fig. 2, the printing action of printing machine 10 is described.As shown in Figure 2, first, circuit substrate 4 is moved into printing position (S12) by substrate transfer apparatus 40.Secondly, circuit substrate 4 lifts from substrate transfer apparatus 40 by baseplate support device 42, and circuit substrate 4 clamps (S14) by substrate clamping device 46.That is, squeegee unit 16 makes scraper plate 14 decline, and scraper plate mobile device 20 starts scraper plate 14 is moved.Thus, start to carry out printing (S16).
In press, treating apparatus 50 obtains the measured value (S18) of squeegee pressure sensor 34, and acquired measured value regulates the action (S20) of scraper plate press device 30.Specifically, when the measured value of squeegee pressure sensor 34 is less than the desired value T being stored in memory 52, increase the pressing force of scraper plate press device 30, when this measured value is greater than desired value T, reduce the pressing force of scraper plate press device 30.That is, treating apparatus 50 performs FEEDBACK CONTROL and makes actual squeegee pressure and desired value T-phase etc.
In press, the measured value of squeegee pressure sensor 34 is stored in memory 52 by treating apparatus 50, and is shown in display unit 54 (S22) in real time.Fig. 3 represents an example of the display frame being shown in display unit 54.As shown in Figure 3, represent that the numerical value (62 parts in figure) of the measured value M of squeegee pressure sensor 34 can together be shown in display unit 54 with the numerical value (60 parts in figure) of expression desired value T.In addition, also the preferred curve map (64 in figure, 66 parts) by the measured value M representing squeegee pressure sensor 34 is shown in display unit 54.At this, the curve Figure 64 shown in Fig. 3,66 transverse axis represent the position of scraper plate 14, the longitudinal axis represents measured value M.That is, curve Figure 64,66 represents the relation between the measured value M of squeegee pressure sensors 34 and the position P of scraper plate 14 now.Curve Figure 64,66 can show at least one (preferably whole) in desired value T, the lower limit X of squeegee pressure, higher limit Y in the lump.At this, a curve Figure 64 represent scraper plate 14 to a direction (in Fig. 1, squeegee pressure time from right to left) mobile, another curve Figure 66 represent scraper plate 14 to other direction (in Fig. 1, squeegee pressure time from left to right) mobile.
In press, treating apparatus 50 judges that the measured value M of squeegee pressure sensor 34 is whether in normal range (NR) (S24).The scope between lower limit X and higher limit Y is referred in this said normal range (NR).When measured value M is not in normal range (NR) (in S24, "No"), treating apparatus 50 shows its content (S26) in display unit 54.In the present embodiment, as shown in Figure 3, the icon 72 of the label posting " squeegee pressure is abnormal " is highlighted.Next, abnormality mark is stored in memory 52 (S28) by treating apparatus 50.Thus, the measured value M for the treatment of apparatus 50 pairs of squeegee pressure sensors 34 deviate from this fact of normal range (NR) and stores.On the other hand, during measured value M is in normal range (NR) (in S24, "Yes"), in display unit 54, the icon 70 of the label posting " squeegee pressure is normal " is highlighted.
Turn back to Fig. 2, no matter above-mentioned the result of judgement process (S24) how, all proceeds to print (that is, the movement of scraper plate 14) (in S30, "No") before scraper plate 14 arrives predetermined stop position.This is because, even if the squeegee pressure of reality deviate from normal range (NR), sometimes also can not produce printing bad.On the other hand, when midway interrupt printing time, this moment can produce on circuit substrate 4 print bad, cause circuit substrate 4 necessarily to become defective work.When scraper plate 14 arrives predetermined stop position (in S30, "Yes"), treating apparatus 50 makes scraper plate 14 stop.That is, printing terminates (S32).At the end of printing, the clamping of substrate clamping device 46 relieving circuit substrate 4, baseplate support device 42 makes circuit substrate 4 decline, and circuit substrate 4 is handed off to substrate transfer apparatus 40 (S34).Further, if do not store abnormality mark (in S36, "No") in memory 52, then receive the instruction from treating apparatus 50, circuit substrate 4 externally takes out of (S42) by substrate transfer apparatus 40.Further, next circuit substrate 4 is moved into from outside (turning back to S12) by substrate transfer apparatus 40.
On the other hand, when storing abnormality mark in memory 52 (in S36, "Yes"), treating apparatus 50 applied standby instruction (S38, S40) to substrate transfer apparatus 40 before receiving the instruction from operator.That is, circuit substrate 4 is not taken out of.Thus, when being judged as that squeegee pressure is abnormal, operator can check this circuit substrate 4 by such as visual.Thereafter, when operator sends instruction via display unit 54 (in S40, "Yes"), substrate transfer apparatus 40 receives the instruction from treating apparatus 50 and is externally taken out of (S42) by circuit substrate 4.Further, next circuit substrate 4 is moved into from outside (turning back to S12) by substrate transfer apparatus 40.
As mentioned above, the printing machine 10 of the present embodiment can not only perform the FEEDBACK CONTROL of squeegee pressure, but also can the normal range (NR) (that is, lower limit X and higher limit Y) of memory print pressure, and judges actual squeegee pressure whether in normal range (NR).And its context notification, when the squeegee pressure of reality deviate from normal range (NR), can be caused the attention of operator by the printing machine 10 of the present embodiment to operator.In this case, operator passes through check circuit substrate 4 immediately, can prevent containing printing bad circuit substrate 4 for production afterwards.
Above, concrete example of the present invention is illustrated in detail, but these concrete examples only illustrate, and non-limiting claim.Technology described in claim comprises to carry out various distortion, change and the technology obtained by above illustrative concrete example.
Technology essential factor illustrated in this description or accompanying drawing plays technical validity individually or by various combination, is not limited to combination described in claim when applying for.In addition, technology illustrated in this description or accompanying drawing realizes multiple object simultaneously, realizes one of them object and the validity that self just possesses skills.
Claims (10)
1. a solder printing machine, possesses:
Be configured at the mask on circuit substrate;
Cream solder brush is entered the scraper plate to described mask;
Make the mobile device that described scraper plate slides on mask;
The scraper plate that described mask slides is pressed on the press device on described mask;
Measure the sensor of the pressing force of described press device; And
Judge the treating apparatus of measured value whether in normal range (NR) of described sensor.
2. solder printing machine according to claim 1, wherein,
Described treating apparatus can store lower limit about the measured value of described sensor and higher limit, and is judged as that when the measured value of described sensor is the value between described lower limit and described higher limit the measured value of described sensor is in normal range (NR).
3. solder printing machine according to claim 2, wherein,
No matter how, described mobile device all makes scraper plate slide into preposition to the judged result of described treating apparatus.
4. solder printing machine according to claim 3, wherein,
Described solder printing machine also possesses to be moved into circuit substrate to predetermined printing position and the Handling device taken out of from described printing position by the circuit substrate after printing,
When the measured value of described sensor is judged as not in normal range (NR), the circuit substrate after printing did not take out of by described Handling device before sending instruction by operator.
5. the solder printing machine according to any one of Claims 1 to 4, wherein,
Described solder printing machine also possesses the display unit shown the judged result of described treating apparatus.
6. solder printing machine according to claim 5, wherein,
Described display unit also shows the measured value of described sensor.
7. solder printing machine according to claim 6, wherein,
The curve map of described display unit to the relation represented between the measured value of described sensor and wiper positions now shows.
8. solder printing machine according to claim 7, wherein,
Described normal range (NR) is shown on described curve map by described display unit simultaneously.
9. solder printing machine according to claim 1, wherein,
No matter how, described mobile device all makes scraper plate slide into preposition to the judged result of described treating apparatus.
10. solder printing machine according to claim 9, wherein,
Described solder printing machine also possesses to be moved into circuit substrate to predetermined printing position and the Handling device taken out of from described printing position by the circuit substrate after printing,
When the measured value of described sensor is judged as not in normal range (NR), the circuit substrate after printing did not take out of by described Handling device before sending instruction by operator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190406.0A CN105082732B (en) | 2014-05-07 | 2014-05-07 | Solder printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190406.0A CN105082732B (en) | 2014-05-07 | 2014-05-07 | Solder printing machine |
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| Publication Number | Publication Date |
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| CN105082732A true CN105082732A (en) | 2015-11-25 |
| CN105082732B CN105082732B (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410190406.0A Active CN105082732B (en) | 2014-05-07 | 2014-05-07 | Solder printing machine |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0848026A (en) * | 1994-08-03 | 1996-02-20 | Alps Electric Co Ltd | Printing control method for screen printing and screen printing apparatus |
| CN202685519U (en) * | 2012-07-19 | 2013-01-23 | 东莞市科隆威自动化设备有限公司 | X-direction surface mounted technology (SMT) printer for light-emitting diode (LED) circuit board |
| CN202782140U (en) * | 2012-09-11 | 2013-03-13 | 深圳德森精密设备有限公司 | Scraper pressure self-adaption stabilizing device of full-automatic vision printer |
| CN203157330U (en) * | 2013-04-01 | 2013-08-28 | 深圳德森精密设备有限公司 | Oscillating scraper pressure feedback device and full-automatic vision printing machine |
-
2014
- 2014-05-07 CN CN201410190406.0A patent/CN105082732B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0848026A (en) * | 1994-08-03 | 1996-02-20 | Alps Electric Co Ltd | Printing control method for screen printing and screen printing apparatus |
| CN202685519U (en) * | 2012-07-19 | 2013-01-23 | 东莞市科隆威自动化设备有限公司 | X-direction surface mounted technology (SMT) printer for light-emitting diode (LED) circuit board |
| CN202782140U (en) * | 2012-09-11 | 2013-03-13 | 深圳德森精密设备有限公司 | Scraper pressure self-adaption stabilizing device of full-automatic vision printer |
| CN203157330U (en) * | 2013-04-01 | 2013-08-28 | 深圳德森精密设备有限公司 | Oscillating scraper pressure feedback device and full-automatic vision printing machine |
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| CN105082732B (en) | 2020-01-03 |
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