A kind of silver paste mechanism for laser printing carrier plate roller coating

Abstract

The utility model relates to photovoltaic industry manufacturing equipment technical field especially, and more particularly to a kind of for laser printing carrier plate roller coating silver paste mechanism.The utility model provides such a kind for laser printing carrier plate roller coating silver paste mechanism, including bottom plate, the installation carrier of part;First support rod, left-right symmetrical type is connected on the bottom plate upper side front side;Second support rod, is connected on the bottom plate upper side rear side;Material box, is connected between two the first support rod and the second support rod upper end.The utility model drives first stirring knife and second stirring knife to and fro stirring by starting first motor and second motor, start screw rod motor drive coating roller and extruding roller shift, start third motor and fourth motor, drive coating roller and extruding roller rotation, make coating roller surface and material box inner silver paste fully contact, adjust extruding roller and coating roller between interval by adjusting piece, and coating roller is coated to printing plate on slurry to complete coating.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing equipment technology in the photovoltaic industry, and in particular to a mechanism for roller coating silver paste on laser printing carrier plates. Background Technology

[0002] As electronic devices develop towards miniaturization, flexibility, and high performance, the demand for high-precision conductive layers in fields such as printed circuit boards, flexible electronics, and solar cells is increasing. Silver paste, as a conductive material, has excellent conductivity and stability, but its fluidity, viscosity, and other properties have a significant impact on the coating process. By using laser printing, silver paste is coated onto a substrate (usually a silicon wafer) to form conductive lines or electrodes, which is used to improve the electrical performance and photoelectric conversion efficiency of photovoltaic cells.

[0003] However, due to the low activity of silver paste and its tendency to precipitate and separate, the existing mechanisms for roller coating silver paste on laser printing substrates lack effective stirring, affecting uniformity. Furthermore, the coating thickness is not precisely controlled, making it difficult to meet diverse needs. The low efficiency of the coordination between components and the insufficient degree of automation limit production efficiency.

[0004] In conclusion, there is an urgent need for a mechanism for roller coating silver paste on laser printing substrates to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of some roller coating mechanisms for laser printing substrates that lack effective stirring, affecting uniformity, and have inaccurate coating thickness control, this utility model mainly provides a roller coating mechanism for laser printing substrates.

[0006] A mechanism for roller coating silver paste on a laser printing substrate includes a base plate as a mounting carrier for parts; first support rods symmetrically connected to the front side of the upper surface of the base plate; a second support rod connected to the rear side of the upper surface of the base plate; a material box connected between the upper ends of the two first support rods and the second support rod; a first motor mounted on the right side of the lower surface of the material box; a second motor mounted on the left side of the lower surface of the material box; first guide rails symmetrically connected to the lower surface of the material box; rollers symmetrically rotatably connected to the lower surface of the material box; a conveyor belt wound around the two rollers on the same side; a first stirring blade slidably connected between the two first guide rails and connected to the left conveyor belt; a second stirring blade slidably connected between the two first guide rails and connected to the right conveyor belt, with the upper parts of both the first and second stirring blades located inside the material box; a second guide rail symmetrically connected to the rear side of the upper surface of the base plate, with the two second guide rails located between the second support rod and the first and second motors; and a mounting plate. The system comprises: a screw motor mounted on the mounting plate; a connecting plate connected to the screw motor nut seat; two sliding plates connected to the left and right sides of the connecting plate, each slidingly connected to a nearby second guide rail; a third motor mounted on the left sliding plate; a fourth motor mounted on the left sliding plate, the third motor positioned above the fourth motor; an adjusting member mounted on the front upper part of the two sliding plates; a coating roller rotatably connected between the upper parts of the two sliding plates facing each other; a pressing roller rotatably connected between the upper parts of the two adjusting members facing each other; a protective shell connected between the left sliding plate and the third and fourth motors; a friction rod connected between the left end of the coating roller and the right end of the output shaft of the third motor, the outer rings of the two friction rods in contact with each other; a pulley connected between the left end of the pressing roller and the right end of the output shaft of the fourth motor; and a flat belt wound between the two pulleys, the friction rod, the pulley, and the flat belt all located within the protective shell.

[0007] Furthermore, the coating roller and the extrusion roller are driven to rotate by the third motor and the fourth motor, respectively.

[0008] Furthermore, the transmission mechanism of the first stirring blade and the second stirring blade is located at the bottom of the material box, controlled by the first motor and the second motor, and driven by the roller, the conveyor belt and the first guide rail.

[0009] Furthermore, the coating roller and the extrusion roller are mounted on the same lifting shaft, and the screw motor can drive the coating roller and the extrusion roller to rise for coating and to fall for feeding.

[0010] Furthermore, during the coating process, the first and second agitators stir back and forth within the material box, and return to their safe positions on both sides after coating is completed.

[0011] Furthermore, both the first and second stirring blades have soft blocks attached to their lower surfaces, and these soft blocks are made of silicone rubber.

[0012] The beneficial effects of this utility model are:

[0013] This invention uses a first motor and a second motor to drive the first and second stirring blades to stir back and forth. A screw motor is started to drive the coating roller and the extrusion roller to shift. A third motor and a fourth motor are started to drive the coating roller and the extrusion roller to rotate, so that the surface of the coating roller is in full contact with the silver paste in the material box. The distance between the extrusion roller and the coating roller is adjusted by the adjusting component. The coating roller coats the paste onto the printing plate to complete the coating process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the base plate, the first support rod, and the second support rod of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the first stirring blade, the second stirring blade, and the roller of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the lead screw motor, connecting plate, and moving plate of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the coating roller, extrusion roller, and protective shell of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the friction rod, pulley, and flat belt of this utility model.

[0020] The markings in the attached diagram are as follows: 1: base plate, 2: first support rod, 3: second support rod, 4: material box, 5: first motor, 6: second motor, 7: first mixing blade, 8: second mixing blade, 9: roller, 10: conveyor belt, 11: first guide rail, 12: second guide rail, 13: mounting plate, 14: lead screw motor, 15: connecting plate, 16: moving plate, 17: third motor, 18: fourth motor, 19: adjusting component, 20: coating roller, 21: extrusion roller, 22: protective shell, 23: friction rod, 24: pulley, 25: flat belt. Detailed Implementation

[0021] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0022] Example: A mechanism for roller coating silver paste onto laser printing substrates, such as... Figures 1-6As shown, the assembly includes a base plate 1, a first support rod 2, a second support rod 3, a material box 4, a first motor 5, a second motor 6, a first stirring blade 7, a second stirring blade 8, rollers 9, a conveyor belt 10, a first guide rail 11, a second guide rail 12, a mounting plate 13, a lead screw motor 14, a connecting plate 15, a moving plate 16, a third motor 17, a fourth motor 18, an adjusting component 19, a coating roller 20, an extrusion roller 21, a protective shell 22, a friction rod 23, a pulley 24, and a flat belt 25. The base plate 1 serves as the mounting carrier for the parts. The first support rods 2 are symmetrically welded to the left and right sides of the upper front side of the base plate 1, and the second support rods 3 are welded to the rear side of the upper side of the base plate 1. The material box 4 is connected between the upper ends of the two first support rods 2 and the second support rod 3. The material box 4 is located on the lower right side. A first motor 5 is bolted to the bottom left of the material box 4, and a second motor 6 is bolted to the bottom left of the material box 4. First guide rails 11 are symmetrically connected to the bottom of the material box 4. The transmission mechanism for the first stirring blade 7 and the second stirring blade 8 is located at the bottom of the material box 4, controlled by the first motor 5 and the second motor 6, and driven by rollers 9, conveyor belts 10, and first guide rails 11. This mechanism enables integrated operation of feeding, extrusion, and coating. Rollers 9 are symmetrically rotatably connected to the bottom of the material box 4. A conveyor belt 10 is wound between two rollers 9 on the same side. A first stirring blade 7 is slidably connected between the two first guide rails 11 and the left conveyor belt 10, and a second stirring blade 7 is slidably connected between the two first guide rails 11 and the right conveyor belt 10. The upper parts of the two mixing blades 8, the first mixing blade 7, and the second mixing blade 8 are both located inside the material box 4. During the coating process, the first mixing blade 7 and the second mixing blade 8 stir back and forth inside the material box 4. After coating, they return to their safe positions on both sides to facilitate stable coating operations. Soft blocks made of silicone rubber are connected to the lower sides of both the first mixing blade 7 and the second mixing blade 8 to protect them. Second guide rails 12 are symmetrically welded to the rear side of the upper side of the base plate 1. The two second guide rails 12 are located between the second support rod 3 and the first motor 5 and the second motor 6. A mounting plate 13 is connected between the upper parts of the two opposing sides of the two second guide rails 12. A lead screw motor 14 is mounted on the mounting plate 13 by bolts. A connecting plate 15 is connected to the nut seat 14. Moving plates 16 are connected to the left and right sides of the connecting plate 15. The two moving plates 16 are slidably connected to the adjacent second guide rails 12. A third motor 17 and a fourth motor 18 are bolted to the left moving plate 16. The third motor 17 is located above the fourth motor 18. Adjusting components 19 are installed on the upper front of the two moving plates 16. A coating roller 20 is rotatably connected between the upper surfaces of the two moving plates 16 facing each other. The coating roller 20 and the extrusion roller 21 are driven to rotate by the third motor 17 and the fourth motor 18 respectively, facilitating the scraping off of excess silver paste from the coating roller 20. An extrusion roller 21 is rotatably connected between the upper surfaces of the two adjusting components 19 facing each other.The coating roller 20 and the extrusion roller 21 are mounted on the same lifting shaft, which facilitates the screw motor 14 to drive the coating roller 20 and the extrusion roller 21 to rise for coating and to fall for feeding. A protective shell 22 connects the left-side moving plate 16 to the third motor 17 and the fourth motor 18. A friction rod 23 is connected to the left end of the coating roller 20 and the right end of the output shaft of the third motor 17. The outer rings of the two friction rods 23 are in contact with each other. A pulley 24 is connected to the left end of the extrusion roller 21 and the right end of the output shaft of the fourth motor 18. A flat belt 25 is wound between the two pulleys 24. 3. Both the pulley 24 and the flat belt 25 are located inside the protective housing 22. The first motor 5 and the second motor 6 are started, driving the first stirring blade 7 and the second stirring blade 8 to stir back and forth. The lead screw motor 14 is started, driving the coating roller 20 and the extrusion roller 21 to shift. The third motor 17 and the fourth motor 18 are started, driving the coating roller 20 and the extrusion roller 21 to rotate, ensuring that the surface of the coating roller 20 is in full contact with the silver paste in the material box 4. The distance between the extrusion roller 21 and the coating roller 20 is adjusted by the adjusting component 19. The coating roller 20 then coats the paste onto the printing plate to complete the coating process.

[0023] When this device is needed, silver paste is injected into the material box 4. The first motor 5 and the second motor 6 are started. The output shafts of the first motor 5 and the second motor 6 rotate, driving the corresponding rollers 9 and conveyor belt 10 to rotate. The conveyor belt 10 drives the first stirring blade 7 and the second stirring blade 8 to move. The first guide rail 11 guides the first stirring blade 7 and the second stirring blade 8. The first motor 5 and the second motor 6 are controlled to rotate in opposite directions, driving the rollers 9 and the conveyor belt 10 to rotate in opposite directions, so that the first stirring blade 7 and the second stirring blade 8 can perform a reset action. Repeat the above operation so that the first stirring blade 7 and the second stirring blade 8 can achieve back and forth stirring in the material box 4, which can ensure the uniformity of silver paste on the surface of the coating roller 20. The lead screw motor 14 is started. The nut seat on the lead screw motor 14 moves, driving the connecting plate 15 to move downward. The connecting plate 15 drives the third motor 17, the fourth motor 18, the adjusting component 19, the coating roller 20, the extrusion roller 21, the protective shell 22, the friction rod 23, the pulley 24, and the flat belt 25 to move through the moving plate 16, so that the coating roller 20, the extrusion roller 21, the protective shell 22, the friction rod 23, the pulley 24, and the flat belt 25 can move, so that the coating roller 20, the extrusion roller 21, the protective shell 22, the friction rod 23, the pulley 24, and the flat belt 25 can move downward ...0, the ex The surface of the coating roller 20 contacts the silver paste in the material box 4. Then, the third motor 17 and the fourth motor 18 are started. The output shaft of the third motor 17 rotates, driving the friction rod 23 to rotate. The friction between the two friction rods 23 drives the coating roller 20 to rotate, so that the surface of the coating roller 20 can fully contact the silver paste in the material box 4 to achieve material feeding. The output shaft of the fourth motor 18 rotates, driving the pulley 24 and the flat belt 25 to rotate, so that the extrusion roller 21 can rotate. Then, the extrusion roller 21 is driven forward by the adjusting component 19 to adjust the distance between it and the coating roller 20, thereby precisely controlling the thickness of the coating layer. The extrusion roller 21 extrudes the coating roller 20 to make its surface have a complete coating layer. The control screw motor 14 is reversed to drive the above components to perform a reset action. The paste on the coating roller 20 is coated onto the printing plate, thus completing one coating process. Subsequent printing can be repeated according to the above operation. After the printing operation is completed, the first motor 5, the second motor 6, the screw motor 14, the third motor 17 and the fourth motor 18 are turned off.

[0024] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A mechanism for roller coating silver paste onto a laser printing substrate, characterized in that, Including: The base plate (1) serves as the mounting carrier for the parts; The first support rod (2) is symmetrically connected to the front side of the upper side of the base plate (1); The second support rod (3) is connected to the rear side of the upper side of the base plate (1); The material box (4) is connected between the upper ends of the two first support rods (2) and the second support rods (3); The first motor (5) is installed on the lower right side of the material box (4); The second motor (6) is installed on the lower left side of the material box (4); The first guide rail (11) is symmetrically connected to the lower side of the material box (4); Rollers (9) are symmetrically connected to the lower side of the material box (4) in a rotating manner; The conveyor belt (10) is wound between the two rollers (9) on the same side of the left and right sides; The first stirring blade (7) is slidably connected between the two first guide rails (11) and connected to the conveyor belt (10) on the left side; The second stirring blade (8) is slidably connected between the two first guide rails (11) and connected to the conveyor belt (10) on the right side. The upper parts of the first stirring blade (7) and the second stirring blade (8) are both located in the material box (4). The first stirring blade (7) and the second stirring blade (8) are used to stir the silver paste. The second guide rail (12) is symmetrically connected to the rear side of the upper side of the base plate (1), and the two second guide rails (12) are located between the second support rod (3) and the first motor (5) and the second motor (6); Mounting plate (13) is connected between the upper part of the two opposing sides of the second guide rails (12); A lead screw motor (14) is mounted on the mounting plate (13); The connecting plate (15) is connected to the nut seat of the lead screw motor (14); Movable plate (16) is connected to the left and right sides of the connecting plate (15), and the two movable plates (16) are respectively slidably connected to the adjacent second guide rail (12); The third motor (17) is mounted on the movable plate (16) on the left side; The fourth motor (18) is mounted on the movable plate (16) on the left side, and the third motor (17) is located above the fourth motor (18); An adjusting element (19) is installed on the upper front side of the two movable plates (16). The adjusting element (19) is used to adjust the distance between the coating roller (20) and the extrusion roller (21). A coating roller (20) is rotatably connected between the upper surfaces of the two moving plates (16) facing each other, and the coating roller (20) is used for coating operations; The extrusion roller (21) is rotatably connected between the upper part of the two adjusting members (19) on opposite sides. The extrusion roller (21) is used to remove excess silver paste from the surface of the coating roller (20). The protective shell (22) is connected between the movable plate (16) on the left and the third motor (17) and the fourth motor (18); Friction rod (23) is connected to the left end of the coating roller (20) and the right end of the output shaft of the third motor (17), and the outer rings of the two friction rods (23) are in contact with each other; The pulley (24) is connected to the left end of the extrusion roller (21) and the right end of the output shaft of the fourth motor (18); A flat belt (25) is wound between the two pulleys (24), and the friction rod (23), the pulleys (24) and the flat belt (25) are all located inside the protective shell (22).

2. The mechanism for roller coating silver paste on a laser printing substrate according to claim 1, characterized in that: The coating roller (20) and the extrusion roller (21) are driven to rotate by the third motor (17) and the fourth motor (18), respectively.

3. The mechanism for roller coating silver paste on a laser printing substrate according to claim 2, characterized in that: The transmission mechanism of the first stirring blade (7) and the second stirring blade (8) is located at the bottom of the material box (4), controlled by the first motor (5) and the second motor (6) and driven by the roller (9), the conveyor belt (10) and the first guide rail (11).

4. The mechanism for roller coating silver paste on a laser printing substrate according to claim 3, characterized in that: The coating roller (20) and the extrusion roller (21) are mounted on the same lifting shaft. The screw motor (14) can drive the coating roller (20) and the extrusion roller (21) to rise for coating and to fall for feeding.

5. A mechanism for roller coating silver paste on a laser printing substrate according to claim 4, characterized in that: During the coating process, the first stirring blade (7) and the second stirring blade (8) stir back and forth in the material box (4), and return to the safe positions on both sides after the coating is completed.

6. A mechanism for roller coating silver paste on a laser printing substrate according to claim 5, characterized in that: Both the first stirring blade (7) and the second stirring blade (8) have soft blocks attached to their lower sides, and the soft blocks are made of silicone rubber material.

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