CN218742656U - Scraper coating device for laser printing slurry - Google Patents
Scraper coating device for laser printing slurry Download PDFInfo
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- CN218742656U CN218742656U CN202222833251.0U CN202222833251U CN218742656U CN 218742656 U CN218742656 U CN 218742656U CN 202222833251 U CN202222833251 U CN 202222833251U CN 218742656 U CN218742656 U CN 218742656U
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Abstract
The utility model relates to the technical field of solar cell printing, in particular to a scraper blade coating device for laser printing slurry, which comprises a frame, wherein a horizontally arranged support plate is arranged on the frame; the horizontal sliding pair is fixed on the supporting plate; the mounting plate is fixed at the movable end of the horizontal sliding pair; the scraper component is arranged on the mounting plate and comprises scrapers, and the scrapers are horizontally arranged and the length direction of the scrapers is vertical to the action direction of the horizontal sliding pair; the slurry spraying assembly is installed on the installation plate and provided with a bar-shaped spray head, a plurality of spray holes are uniformly distributed in the top surface of the bar-shaped spray head, the bar-shaped spray head is horizontally arranged and is parallel to the scraper, and the bar-shaped spray head is located on the front side of the scraper in the action direction of the horizontal sliding pair. The device has the advantages that the spraying amount of the slurry spraying assembly is controllable, the sliding speed of the horizontal sliding pair is also controllable, the slurry spraying on the whole carrier plate is uniform by matching with the scraper, and the uniformity of slurry coating is ensured.
Description
Technical Field
The utility model relates to a solar wafer printing technology field especially relates to a be used for laser printing thick liquids scraper blade coating unit.
Background
Grid lines are arranged on the solar cell pieces, and the grid lines are processed in a screen printing mode, a laser printing mode and the like. The laser printing method mainly comprises the steps of using a transparent carrier plate, forming a wire groove in the lower surface of the carrier plate according to a grid line, then coating slurry on the lower surface of the carrier plate to enable the slurry to be filled into the wire groove, finally placing a silicon wafer to be formed below the carrier plate, and printing the slurry to the silicon wafer to form the grid line by moving and irradiating a laser beam.
The existing coating method of the slurry on the carrier plate mainly depends on a scraper or other objects to directly coat the slurry on the surface of the carrier plate, but the quantity of the coated slurry is not well controlled, the coating is not uniform, stable light beam energy distribution is difficult to obtain during laser printing, so that the height and width of the obtained grid line are greatly different, and the conditions of grid breakage, poor straightness and the like occur in severe cases.
SUMMERY OF THE UTILITY MODEL
For overcoming current laser printing thick liquids and apply paint inhomogeneous technical defect with a brush, the utility model provides a be used for laser printing thick liquids scraper blade coating unit.
The utility model provides a be used for laser printing thick liquids scraper blade coating unit, include:
the device comprises a rack, wherein a supporting plate which is horizontally arranged is arranged on the rack;
the horizontal sliding pair is fixed on the supporting plate;
the mounting plate is fixed at the movable end of the horizontal sliding pair;
the scraper component is arranged on the mounting plate and comprises scrapers, and the scrapers are horizontally arranged and the length direction of the scrapers is perpendicular to the action direction of the horizontal sliding pair;
the thick liquids spraying component install on the mounting panel, thick liquids spraying component includes the bar shower nozzle, the top surface equipartition of bar shower nozzle has a plurality of orifices, bar shower nozzle horizontal arrangement and with the scraper is parallel, the bar shower nozzle is in lie in on the vice action direction of horizontal slip the front side of scraper.
Optionally, the horizontal sliding pair is provided with two groups which are parallel to each other, the two groups of horizontal sliding pairs are arranged at intervals, and two ends of the mounting plate are respectively fixed at the movable ends of the two horizontal sliding pairs.
Optionally, the horizontal sliding pair is an electric sliding table.
Optionally, still be equipped with two removals in the backup pad and assist the rail, two the removal assist the rail all with the vice parallel of horizontal slip just is located two vice holistic both sides that form of horizontal slip respectively, slidable mounting has the slider on the removal assistance rail, the vice expansion end of horizontal slip is fixed on the slider.
Optionally, the device for spreading laser printing paste by using a scraper further comprises:
and the slurry recycling box is fixed on the supporting plate and is positioned between the horizontal sliding pairs, and the slurry recycling box is lower than the mounting plate and the upper end of the mounting plate is open.
Optionally, the doctor assembly further comprises:
the fixing seat is fixed on the mounting plate;
the scraper is slidably mounted on the fixing seat, the sliding direction of the scraper is vertical, and an elastic part is pressed between the scraper and the fixing seat.
Optionally, two guide shafts which are vertically arranged are fixed on the fixing seat, two ends of the scraper are respectively and intermittently sleeved on the two guide shafts, and a limiting part which is suitable for preventing the scraper from being separated from the guide shafts is arranged at the top end of each guide shaft.
Optionally, a vertical lifting pair is fixed on the frame, and the support plate is fixed on a movable end of the vertical lifting pair.
Optionally, the vertical lifting pair is an electric sliding table.
Optionally, the scraper is provided with a pressure sensor suitable for detecting the pressure of the scraper, the pressure sensor is in communication connection with a controller, the controller is in communication connection with the vertical lifting pair, and the controller controls the vertical lifting pair to act according to a signal of the pressure sensor.
The technical scheme provided by the utility model compare with prior art and have following advantage:
the utility model provides a be used for laser printing thick liquids scraper blade coating unit is equipped with thick liquids spraying subassembly, and thick liquids pass through the mode of spraying and spray at the lower surface of support plate to realize the material loading on whole support plate surface through the horizontal slip pair, because the spraying volume of thick liquids spraying subassembly is controllable, the slip speed of horizontal slip pair is also controllable, makes the thick liquids spraying on the whole support plate all even like this, has guaranteed the degree of consistency that thick liquids were applied paint with a brush; the scraper is arranged behind the slurry spraying assembly, so that redundant slurry can be scraped to avoid influence of the redundant slurry on a subsequent printing process, the slurry can be uniformly scraped, and the uniformity of the slurry is further improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic structural diagram of a scraper coating device for laser printing paste according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a doctor assembly according to an embodiment of the present invention.
Wherein:
1. a frame; 2. a support plate; 3. a horizontal sliding pair; 4. mounting a plate; 5. a scraper assembly; 51. a scraper; 52. a fixed seat; 53. an elastic member; 54. a guide shaft; 55. a limiting member; 6. a slurry spray assembly; 61. a strip-shaped spray head; 71. moving the auxiliary rail; 72. a slider; 8. a slurry recovery tank; 9. and (5) a vertical lifting pair.
Detailed Description
In order that the above objects, features and advantages of the present invention may be more clearly understood, the aspects of the present invention will be further described below. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the invention may be practiced in other ways than those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present invention, and not all of the embodiments.
In one embodiment, as shown in fig. 1, a blade coating apparatus for laser printing paste includes: the device comprises a frame 1, a horizontal sliding pair 3, a mounting plate 4, a scraper component 5 and a slurry spraying component 6; a support plate 2 which is horizontally arranged is arranged on the frame 1; the horizontal sliding pair 3 is fixed on the supporting plate 2; the mounting plate 4 is fixed at the movable end of the horizontal sliding pair 3; the scraper component 5 is arranged on the mounting plate 4, the scraper component 5 comprises a scraper 51, and the scraper 51 is horizontally arranged and the length direction of the scraper is vertical to the action direction of the horizontal sliding pair 3; the slurry spraying component 6 is installed on the installation plate 4, the slurry spraying component 6 comprises a bar-shaped spray head 61, a plurality of spray holes are uniformly distributed on the top surface of the bar-shaped spray head 61, the bar-shaped spray head 61 is horizontally arranged and is parallel to the scraper 51, and the bar-shaped spray head 61 is positioned on the front side of the scraper 51 in the action direction of the horizontal sliding pair 3.
Specifically, the horizontal sliding pair 3 can be implemented by adopting a common linear power structure such as an electric sliding table, a motor screw pair and a linear motor. Preferably, an electric sliding table is adopted, so that the reaction is fast, the operation is stable, and the movement precision is high.
It is easy to understand that the horizontal sliding pair 3 is composed of a fixed shell and a movable end, and the so-called horizontal sliding pair 3 is fixed on the support plate 2, that is, the fixed shell of the horizontal sliding pair 3 is fixed on the support plate 2.
Specifically, the scraper 51 may be made of PEEK, POM, polyurethane, or the like.
The slurry spraying assembly 6 is configured to spray the slurry at a certain pressure, and the amount of the slurry sprayed is controllable, and the uniformity of the slurry can be ensured by using the point.
It will be readily appreciated that the slurry spraying does not require the strip-shaped spray heads 61 to be in direct contact with the carrier plate, whereas the doctor blade 51 needs to be in direct contact with the carrier plate, so that the doctor blade 51 is arranged higher than the strip-shaped spray heads 61, so that structural interference is avoided. Of course, the distance between the strip-shaped spray head 61 and the carrier plate depends on the speed and amount of spraying, which is easy to design for a person skilled in the art.
During specific implementation, the slurry is sprayed on the lower surface of the carrier plate in a spraying mode, and the feeding of the whole carrier plate surface is realized through the horizontal sliding pair 3, and the spraying amount of the slurry spraying component 6 is controllable, so that the sliding speed of the horizontal sliding pair 3 is also controllable, the slurry spraying on the whole carrier plate is uniform, and the uniformity of slurry coating is ensured; the scraper 51 is arranged behind the slurry spraying assembly 6, so that redundant slurry can be scraped to avoid the influence of the redundant slurry on the subsequent printing process, the slurry can be uniformly scraped, and the uniformity of the slurry is further improved.
In some embodiments, referring to fig. 1, the horizontal sliding pairs 3 are provided with two parallel groups, the two groups of horizontal sliding pairs 3 are arranged at intervals, and two ends of the mounting plate 4 are respectively fixed at the movable ends of the two horizontal sliding pairs 3. The two sets of horizontal sliding pairs 3 make the mounting plate 4 more stable in support due to the larger transverse span of the blade assembly 5 and the slurry spraying assembly 6.
Further, referring to fig. 1, two movable auxiliary rails 71 are further arranged on the support plate 2 of the slurry scraper coating device for laser printing, the two movable auxiliary rails 71 are both parallel to the horizontal sliding pair 3 and are respectively located on two sides of the whole formed by the two horizontal sliding pairs 3, a sliding block 72 is slidably mounted on the movable auxiliary rails 71, and the movable end of the horizontal sliding pair 3 is fixed on the sliding block 72. Because the transverse span of the scraper component 5 and the slurry spraying component 6 is large, the movable auxiliary rail 71 can play a role in auxiliary guiding and bearing, so that the whole structure is more stable.
Further, referring to fig. 1, the device for coating the laser printing paste scraper further comprises a paste recovery box 8, wherein the paste recovery box 8 is fixed on the support plate 2 and located between the two sets of horizontal sliding pairs 3, and the paste recovery box 8 is lower than the mounting plate 4 and has an open upper end. After the scraper 51 scrapes off the redundant slurry from the lower surface of the carrier plate, the slurry falls into the slurry recovery box 8 for recycling, so that the waste of the slurry can be avoided.
In some embodiments, referring to fig. 2, the doctor assembly 5 further comprises a holder 52, the holder 52 being fixed to the mounting plate 4; the scraper 51 is slidably mounted on the fixing base 52, the sliding direction is vertical, and an elastic member 53 is pressed between the scraper 51 and the fixing base 52.
Specifically, the sliding installation manner of the scraper 51 on the fixing seat 52 is not limited, and may be as shown in fig. 2, two guide shafts 54 vertically arranged are fixed on the fixing seat 52, two ends of the scraper 51 are respectively and intermittently sleeved on the two guide shafts 54, and a limiting member 55 adapted to prevent the scraper 51 from being separated from the guide shafts 54 is arranged at the top end of the guide shafts 54; a sliding shaft can be used to replace the guide shaft 54, the sliding shaft is inserted in the fixed seat 52 in a sliding manner, the fixed seat 52 is provided with a limit part 55 suitable for preventing the sliding shaft from being separated from the fixed seat 52, and the scraper 51 is fixed on the sliding shaft; the scraper 51 may also be mounted by a sliding rail pair structure.
In particular, the elastic member 53 may be a spring or an elastic rubber or other commonly used elastic structure having a restoring function.
Specifically, as shown in fig. 2, the mounting structure of the elastic member 53 may be formed by forming a groove on the top surface of the fixing seat 52, placing the elastic member 53 partially in the groove and partially exposed from the groove, and abutting the top of the elastic member 53 against the bottom surface of the scraper 51; the elastic member 53 may be directly fitted around the guide shaft 54, and both ends of the elastic member may abut against the bottom surface of the scraper 51 and the top surface of the holder 52, respectively.
In specific implementation, the scraper 51 is in flexible contact with the carrier plate through the elastic member 53, so that the carrier plate is prevented from being scratched by the scraper 51.
In some embodiments, as shown in fig. 1, a vertical lifting pair 9 is fixed on the frame 1, and the support plate 2 is fixed on the movable end of the vertical lifting pair 9.
Specifically, the vertical lifting pair 9 can be realized by adopting common linear power structures such as an electric sliding table, a motor screw pair and a linear motor. Preferably, an electric sliding table is adopted, so that the reaction is fast, the operation is stable, and the movement precision is high.
During specific implementation, through the lifting action of the vertical lifting pair 9, firstly, a position avoiding effect on the carrier plate can be realized, then the coating height of the scraper can be adjusted, and the slurry can be ensured to reach a good effect after being scraped by the scraper 51.
Further, scraper 51 is equipped with and is suitable for the pressure sensor who detects scraper 51 pressure, and pressure sensor communication connection has the controller, and the controller is connected with vertical lift pair 9 communication, and the controller is according to pressure sensor's signal control vertical lift pair 9 action.
As will be readily understood, the pressure sensor is used to detect the pressure of the scraper 51, so the probe of the pressure sensor needs to be in rigid contact with the scraper 51 to ensure the detection accuracy. For example, when the pressure sensor is disposed below the scraper 51 and the scraper 51 abuts against the carrier plate, the pressure is transmitted to the pressure sensor through the rigid structure of the scraper 51 itself, thereby completing the detection of the pressure.
In specific implementation, the pressure sensor detects the pressure of the scraper 51 on the carrier plate, and transmits a pressure signal to the controller: when the controller judges that the pressure is greater than the preset value, the controller controls the vertical lifting pair 9 to act to drive the scraper 51 to move downwards, so that the pressure is reduced until the preset value is reached; when the controller judges that the pressure is smaller than the preset value, the controller controls the action of the vertical lifting pair 9 to drive the scraper 51 to move upwards, so that the pressure is increased until the preset value is reached. In this way, it is possible to ensure that the pressure of the support plate against the scraper 51 is consistently interpreted throughout, thereby ensuring the flatness of the slurry.
Based on all the above embodiments, the working process of the device for coating the laser printing slurry scraper blade is as follows:
the method comprises the following steps: conveying the support plate to a sizing station through a conveying mechanism;
step two: the scraper component 5 and the slurry spraying component 6 are lifted through the vertical lifting pair 9, and the scraper component 5 and the slurry spraying component 6 are lifted to a set height;
step three: the mounting plate 4 is transversely moved through the horizontal sliding pair 3, so that the scraper component 5 and the slurry spraying component 6 transversely move along with the horizontal sliding pair, the slurry spraying component 6 coats the carrier plate with slurry, the scraper 51 scrapes off the redundant slurry after the slurry is coated on the carrier plate, and the slurry falls to the slurry recovery box 8;
step four: and moving the coated carrier plate to a printing area for laser printing.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A device for blade coating of laser printing paste, comprising:
the device comprises a rack (1), wherein a supporting plate (2) which is horizontally arranged is arranged on the rack (1);
a horizontal sliding pair (3) fixed to the support plate (2);
the mounting plate (4) is fixed at the movable end of the horizontal sliding pair (3);
the scraper component (5) is installed on the installation plate (4), the scraper component (5) comprises scrapers (51), and the scrapers (51) are horizontally arranged, and the length direction of the scrapers (51) is perpendicular to the action direction of the horizontal sliding pair (3);
thick liquids spray assembly (6) install on mounting panel (4), thick liquids spray assembly (6) include bar shower nozzle (61), the top surface equipartition of bar shower nozzle (61) has a plurality of orifices, bar shower nozzle (61) horizontal arrangement and with scraper (51) are parallel, bar shower nozzle (61) are in lie in on the action direction of the vice (3) of horizontal slip the front side of scraper (51).
2. The device for spreading the laser printing paste scraper blade according to claim 1, characterized in that the horizontal sliding pairs (3) are provided with two groups parallel to each other, the two groups of horizontal sliding pairs (3) are arranged at intervals, and two ends of the mounting plate (4) are respectively fixed at the movable ends of the two horizontal sliding pairs (3).
3. The device for spreading laser-printed paste squeegees according to claim 2 characterized in that said horizontal sliding pair (3) is an electric slide table.
4. The device for spreading a laser printing paste scraper according to claim 2, characterized in that two moving auxiliary rails (71) are further provided on the support plate (2), the two moving auxiliary rails (71) are both parallel to the horizontal sliding pair (3) and are respectively located on two sides of the whole formed by the two horizontal sliding pairs (3), a sliding block (72) is slidably mounted on the moving auxiliary rails (71), and the movable end of the horizontal sliding pair (3) is fixed on the sliding block (72).
5. The blade coating apparatus for laser printing paste according to any one of claims 2 to 4, characterized by further comprising:
and the slurry recovery box (8) is fixed on the supporting plate (2) and is positioned between the two horizontal sliding pairs (3), and the slurry recovery box (8) is lower than the mounting plate (4) and the upper end of the mounting plate is open.
6. The device for the blade coating of laser printing paste according to claim 1, characterized in that the blade assembly (5) further comprises:
a fixed seat (52) fixed on the mounting plate (4);
the scraper (51) is slidably mounted on the fixed seat (52) and the sliding direction is vertical, and an elastic part (53) is pressed between the scraper (51) and the fixed seat (52).
7. The device for spreading the laser printing paste scraper blade according to claim 6, characterized in that two vertically arranged guide shafts (54) are fixed on the fixed base (52), two ends of the scraper (51) are respectively and intermittently sleeved on the two guide shafts (54), and the top end of the guide shaft (54) is provided with a limit piece (55) which is suitable for preventing the scraper (51) from being separated from the guide shafts (54).
8. The device for spreading a laser printing paste scraper according to claim 1, characterized in that a vertical lifting pair (9) is fixed on the frame (1), and the support plate (2) is fixed on the movable end of the vertical lifting pair (9).
9. The device for spreading laser-printed paste squeegees according to claim 8 characterized in that said vertical lifting pair (9) is an electric slide.
10. The device for laser printing paste scraper coating according to claim 9, characterized in that the scraper (51) is equipped with a pressure sensor adapted to detect the pressure of the scraper (51), the pressure sensor being communicatively connected with a controller, the controller being communicatively connected with the vertical lifting pair (9), the controller controlling the action of the vertical lifting pair (9) in dependence on the signal of the pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222833251.0U CN218742656U (en) | 2022-10-27 | 2022-10-27 | Scraper coating device for laser printing slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222833251.0U CN218742656U (en) | 2022-10-27 | 2022-10-27 | Scraper coating device for laser printing slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218742656U true CN218742656U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222833251.0U Active CN218742656U (en) | 2022-10-27 | 2022-10-27 | Scraper coating device for laser printing slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218742656U (en) |
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2022
- 2022-10-27 CN CN202222833251.0U patent/CN218742656U/en active Active
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