A slurry diluent spray device

Abstract

This utility model relates to the field of spray equipment technology, and more particularly to a paste diluent spraying device. It includes a worktable, an adjusting frame mounted on the upper surface of the worktable, an adjusting platform mounted on one side of the adjusting frame, a paste hopper mounted on one side of the adjusting platform, two scrapers mounted on the side of the paste hopper near the worktable, a placement platform mounted on the side of the adjusting frame near the scrapers, and a spraying mechanism on one side of the adjusting platform. The spraying mechanism includes a connecting rod, with both ends of the arc-shaped surface of the connecting rod fixedly connected to one side of the adjusting platform. The paste diluent spraying device provided by this utility model has the advantage of allowing timed addition of diluent to the paste hopper via the spraying mechanism. The spraying mechanism maintains the flow of the paste, preventing printing problems such as broken lines, indistinct printing, and excessive wet weight when the paste dries out.

Description

Technical Field

[0001] This utility model relates to the field of spray equipment technology, and in particular to a slurry diluent spraying device. Background Technology

[0002] A spraying device is a device used to adjust and dilute paste, and its function is to ensure that the paste is evenly and properly coated during the printing process of solar cells.

[0003] Utility model CN205836207U discloses a step-by-step printed main grid stencil for solar cells. The key technical points are: it includes a stencil substrate with multiple parallel straight main grid printing holes for step-by-step printing of the main grid lines on the silicon wafer; and multiple straight reference line printing holes around the main grid printing holes for printing straight reference lines on the silicon wafer near the inner edge of the wafer. By setting reference line printing holes on the main grid printing stencil, this utility model can simultaneously print reference lines with relatively close positions to the edge of the silicon wafer during the step-by-step printing of the main grid lines. This facilitates the operator's visual inspection to detect printing misalignment and timely adjustment of compensation parameters, thereby ensuring the printing accuracy of the main grid in step-by-step printing.

[0004] Regarding the aforementioned issues, the following technical defects exist: In the solar cell printing process, the paste diluent is an auxiliary liquid used to adjust the paste's viscosity, flowability, and drying speed. By adding diluent, the paste can adapt to different printing conditions, thereby improving printing quality. The solar cell is placed on a mounting table, and the adjusting table moves on an adjusting frame, which in turn moves the squeegee. The adjusting table allows the squeegee to contact the solar cell, and the paste can be evenly applied to the solar cell through the paste tank and the squeegee. However, currently, in solar cell printing, the paste diluent is added in whole bottles, which is the upper limit. The diluent evaporates over time, causing the paste to gradually dry, leading to a series of printing problems such as grid breaks, incomplete printing, and excessive wet weight, thus affecting the printing quality and efficiency of the solar cells. Utility Model Content

[0005] The purpose of this invention is to solve the problems in the existing technology of printing solar cells. In current printing, the diluent in the paste is added in whole bottles, which is the upper limit. The diluent evaporates over time, causing the paste to gradually dry out. This leads to a series of printing problems such as grid breakage, incomplete printing, and high wet weight, which affect the printing quality and efficiency of the solar cells.

[0006] To solve the above technical problems, this utility model provides a slurry diluent spraying device, comprising: a workbench, an adjusting frame mounted on the upper surface of the workbench, an adjusting platform mounted on one side of the adjusting frame, a slurry hopper mounted on one side of the adjusting platform, two scrapers mounted on the side of the slurry hopper near the workbench, a placement platform mounted on the side of the adjusting frame near the scrapers, a spraying mechanism provided on one side of the adjusting platform, the spraying mechanism including a connecting rod, both ends of the arc surface of the connecting rod being fixedly connected to one side of the adjusting platform, a rotating block rotatably connected to the arc surface of the connecting rod, a cover plate fixedly connected to one side of the rotating block, a sealing plate fixedly connected to the side of the cover plate near the slurry hopper, the side of the sealing plate being press-fitted to the inner wall of the slurry hopper, and a spray nozzle opened on the side of the cover plate. An adjusting plate is fixedly connected to one end of the slurry silo. A motor is fixedly connected to one side of the adjusting plate. A power rod is fixedly connected to the output end of the motor. An adjusting block is threadedly connected to the arc surface of the power rod. The side of the adjusting block is slidably connected to the inner wall of the adjusting plate. A moving plate is fixedly connected to one end of the adjusting plate. A connecting ring is fixedly connected to one side of the moving plate. A storage tank slides through one inner wall of the connecting ring. A spray pump is fixedly connected to one side of the storage tank. The spray nozzle of the spray pump is fixedly connected to the inner wall of the storage tank. A positioning rod is threaded through the other inner wall of the connecting ring. One end of the arc surface of the positioning rod abuts against the arc surface of the storage tank. A timer is fixedly connected to one side of the adjusting plate. A central controller is fixedly connected to the side of the adjusting plate closest to the timer.

[0007] The effects achieved by the above components are as follows: In the solar cell printing process, the paste diluent is an auxiliary liquid that adjusts the viscosity, fluidity, and drying speed of the paste. By adding diluent, the paste can adapt to different printing conditions, thereby improving the printing quality. The solar cell is placed on the placement table, and the adjustment table moves on the adjustment frame, which can drive the squeegee to move. The adjustment table can drive the squeegee to contact the solar cell, and the paste can be evenly applied to the solar cell through the paste tank and the squeegee. However, currently, in solar cell printing, the paste diluent is added in whole bottles, which is the upper limit. The paste diluent will evaporate over time, causing the paste to gradually dry out, resulting in a series of printing problems such as grid breaks, incomplete printing, and high wet weight, thus affecting the printing quality and efficiency of the solar cell. At this time, a spraying mechanism can be used to spray diluent into the paste tank at regular intervals, thereby preventing the paste from drying out and affecting the subsequent use of the paste.

[0008] Preferably, a limiting block is fixedly connected to the side of the adjusting platform near the connecting rod, and the limiting block has an arc-shaped cross-section.

[0009] The effect achieved by the above components is that when the cover is opened, the limiting block can temporarily support the opening angle of the cover by contacting the rotating block, thus preventing the cover from contacting one side of the adjusting frame and causing damage.

[0010] Preferably, a handle is fixedly connected to the side of the cover plate away from the sealing plate.

[0011] The effect achieved by the above components is that the handle can increase the speed of opening the cover.

[0012] Preferably, the positioning rod has a plurality of auxiliary grooves at one end of its arc surface, and the plurality of auxiliary grooves are evenly distributed on the positioning rod.

[0013] The effect achieved by the above components is that the auxiliary groove can increase the friction on the surface of the positioning rod and increase the speed of rotating the positioning rod.

[0014] Preferably, the inner wall of the slurry bin is provided with an auxiliary mechanism, which includes two rotating rods that rotatably penetrate the inner wall of the slurry bin. A turntable is fixedly connected to one end of the arc surface of each rotating rod, and a plurality of stirring rods are fixedly connected to the side of the turntable away from the rotating rod. The plurality of stirring rods are evenly distributed on the turntable. A connecting plate is fixedly connected to the other end of the arc surface of the rotating rod, and a force-applying rod is fixedly connected to the side of the connecting plate away from the rotating rod.

[0015] The effect achieved by the above components is that after the diluent is sprayed into the slurry tank, the slurry in the slurry tank can be stirred by the auxiliary mechanism. Thus, the mixing effect between the diluent and the slurry can be improved by stirring, thereby improving the stability of the diluent in diluting the slurry.

[0016] Preferably, a friction pad is fixedly connected to the arc surface of the force-adding rod, and the arc surface of the friction pad is provided with anti-slip texture.

[0017] The effect achieved by the above components is that the friction pad can increase the friction on the surface of the extension rod, resulting in better stability for the worker when operating the extension rod.

[0018] Preferably, the force-applying rod is a steel rod.

[0019] The effect achieved by the above components is that the surface of the steel extension rod is relatively hard and it is less likely to deform even after long-term use.

[0020] Compared with related technologies, the slurry diluent spraying device provided by this utility model has the following advantages:

[0021] Beneficial effects:

[0022] This utility model provides a paste diluent spraying device. By setting up a spraying mechanism, when adding diluent to the paste in the paste tank, the diluent can be added at a time. The spraying mechanism can maintain the flow effect of the paste and avoid a series of printing problems such as broken grids, indistinct printing, and high wet weight when the paste dries.

[0023] By setting up an auxiliary mechanism, when it is necessary to stir the slurry to improve the mixing effect between the slurry and the diluent, the purpose of stirring the slurry can be accomplished through the auxiliary mechanism, thereby improving the mixing effect between the diluent and the slurry and improving the flowability of the slurry. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of a slurry diluent spraying device provided by this utility model;

[0025] Figure 2 for Figure 1 The diagram shown is a structural schematic of the spray mechanism.

[0026] Figure 3 for Figure 1 A schematic diagram of the disassembled structure of the spray mechanism shown;

[0027] Figure 4 for Figure 3 The enlarged view of point A shown;

[0028] Figure 5 for Figure 3 The enlarged view at point B is shown below;

[0029] Figure 6 for Figure 3 The enlarged view at point C is shown below;

[0030] Figure 7 for Figure 1 The diagram shows the structure of the auxiliary mechanism.

[0031] Figure 8 for Figure 1 The diagram shows the disassembled structure of the auxiliary mechanism.

[0032] The diagram shows the following components: 1. Workbench; 2. Spraying mechanism; 201. Connecting rod; 202. Rotating block; 203. Cover plate; 204. Spray nozzle; 205. Sealing plate; 206. Adjusting plate; 207. Motor; 208. Power rod; 209. Adjusting block; 210. Moving plate; 211. Storage tank; 212. Spray pump; 213. Positioning rod; 214. Connecting ring; 215. Timer; 216. Central controller; 217. Limit block; 218. Handle; 219. Auxiliary trough; 3. Auxiliary mechanism; 31. Rotating rod; 32. Turntable; 33. Stirring rod; 34. Connecting plate; 35. Force rod; 36. Friction pad; 4. Adjusting frame; 5. Adjusting platform; 6. Slurry bin; 7. Scraper; 8. Placement platform. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0035] Please see Figures 1 to 8 The present invention provides a slurry diluent spraying device, comprising: a workbench 1, an adjusting frame 4 mounted on the upper surface of the workbench 1, an adjusting platform 5 mounted on one side of the adjusting frame 4, a slurry hopper 6 mounted on one side of the adjusting platform 5, two scrapers 7 mounted on the side of the slurry hopper 6 near the workbench 1, a placement platform 8 mounted on the side of the adjusting frame 4 near the scrapers 7, a spraying mechanism 2 provided on one side of the adjusting platform 5, and an auxiliary mechanism 3 provided on the inner wall of the slurry hopper 6.

[0036] In the embodiments of this utility model, please refer to Figures 2 to 6The spraying mechanism 2 includes a connecting rod 201. Both ends of the arc surface of the connecting rod 201 are fixedly connected to one side of the adjusting table 5. A rotating block 202 is rotatably connected to the arc surface of the connecting rod 201. A cover plate 203 is fixedly connected to one side of the rotating block 202. A sealing plate 205 is fixedly connected to the side of the cover plate 203 near the slurry tank 6. The side of the sealing plate 205 is press-fitted to the inner wall of the slurry tank 6. A spray nozzle 204 is provided on the side of the cover plate 203. An adjusting plate 206 is fixedly connected to one end of the slurry tank 6. A motor 207 is fixedly connected to one side of the adjusting plate 206. A power rod 208 is fixedly connected to the output end of the motor 207. An adjusting block 209 is threadedly connected to the arc surface of the power rod 208. The side of the adjusting block 209 is connected to the adjusting plate 206. The inner wall is slidably connected. One end of the adjusting plate 206 is fixedly connected to the moving plate 210. A connecting ring 214 is fixedly connected to one side of the moving plate 210. One inner wall of the connecting ring 214 slides through the storage tank 211. A spray pump 212 is fixedly connected to one side of the storage tank 211. The spray nozzle 204 of the spray pump 212 is fixedly connected to the inner wall of the storage tank 211. A positioning rod 213 is threaded through the other inner wall of the connecting ring 214. One end of the arc surface of the positioning rod 213 abuts against the arc surface of the storage tank 211. A timer 215 is fixedly connected to one side of the adjusting plate 206. A central controller 216 is fixedly connected to the side of the adjusting plate 206 near the timer 215. In the solar cell printing process, the paste diluent is a kind of adjustment agent. The auxiliary liquid for adjusting the viscosity, fluidity, and drying speed of the printing paste, by adding a diluent, allows the paste to adapt to different printing conditions, thereby improving printing quality. The solar cell is placed on the placement table 8, and the adjusting table 5 moves on the adjusting frame 4, which drives the doctor blade 7 to move. The adjusting table 5 allows the doctor blade 7 to contact the solar cell, and the paste is evenly applied to the solar cell through the paste tank 6 and the doctor blade 7. However, currently, in solar cell printing, the paste diluent is added online, bottle by bottle. The diluent evaporates over time, causing the paste to gradually dry, resulting in a series of printing problems such as broken grids, incomplete printing, and high wet weight, thus affecting the printing quality and efficiency of the solar cell. This can be addressed by using a spray mechanism 2. A diluent is periodically sprayed into the slurry bin 6 to prevent the slurry from drying out and affecting its subsequent use. A limiting block 217 is fixedly connected to the side of the adjusting platform 5 near the connecting rod 201. The limiting block 217 has an arc-shaped cross-section. When the cover plate 203 is opened, the limiting block 217 can contact the rotating block 202 to temporarily support the opening angle of the cover plate 203, preventing the cover plate 203 from contacting the side of the adjusting frame 4 and causing damage. A handle 218 is fixedly connected to the side of the cover plate 203 away from the sealing plate 205. The handle 218 can increase the speed when opening the cover plate 203. Several auxiliary grooves 219 are opened at one end of the arc surface of the positioning rod 213. The auxiliary grooves 219 are evenly distributed on the positioning rod 213.The auxiliary groove 219 can increase the friction on the surface of the positioning rod 213, thereby increasing the speed at which the positioning rod 213 rotates.

[0037] In the embodiments of this utility model, please refer to Figure 7 and Figure 8 The auxiliary mechanism 3 includes two rotating rods 31, both of which rotatably penetrate the inner wall of the slurry bin 6. A turntable 32 is fixedly connected to one end of the arc surface of each rotating rod 31. Several stirring rods 33 are fixedly connected to the side of the turntable 32 away from the rotating rods 31, and are evenly distributed on the turntable 32. A connecting plate 34 is fixedly connected to the other end of the arc surface of each rotating rod 31. A force-applying rod 35 is fixedly connected to the side of the connecting plate 34 away from the rotating rods 31. After the diluent is sprayed into the slurry bin 6, it can be... The auxiliary mechanism 3 is used to stir the slurry in the slurry tank 6. By stirring, the mixing effect of the diluent and the slurry can be improved, and the stability of the diluent in diluting the slurry can be improved. The arc surface of the extension rod 35 is fixedly connected to the friction pad 36. The arc surface of the friction pad 36 is provided with anti-slip texture. The friction pad 36 can improve the friction of the surface of the extension rod 35, and the stability of the extension rod 35 when the worker operates it is better. The extension rod 35 is a steel rod. The surface of the steel extension rod 35 is relatively hard and it is not easy to deform even after long-term use.

[0038] The working principle of the slurry diluent spraying device provided by this utility model is as follows: When diluent needs to be added to the slurry in the slurry silo 6 at regular intervals, the slurry is added into the slurry silo 6. By rotating the cover plate 203 and the rotating block 202 on the connecting rod 201, the sealing plate 205 is brought into contact with the slurry silo 6, thus sealing the slurry silo 6. The motor 207 installed on the adjusting plate 206 is started. The movement of the motor 207 drives the power rod 208 to rotate through the output end. The power rod 208 can drive the adjusting block 209 to slide within the adjusting plate 206. At this time, the moving plate 210 and the storage tank 211 can be moved, and the connecting ring 214 can be moved above the spray nozzle 204. The diluent is poured into the storage tank 211 and the storage tank is tightened. The sealing cap of tank 211 is used to place the storage tank 211 into the connecting ring 214, and connect the mist outlet of the storage tank 211 to the spray nozzle 204. The positioning rod 213 rotates within the connecting ring 214, causing the connecting ring 214 to abut against the surface of the storage tank 211, thus fixing the storage tank 211 within the connecting ring 214. The spraying time can be timed by the timer 215. When the spraying time is reached, the timer 215 will transmit the spray signal to the central controller 216, which will then transmit the signal to the spray pump 212. The spray pump 212 will spray the diluent in the storage tank into the slurry bin 6 through the mist outlet and the spray nozzle 204, thus achieving the effect and purpose of spraying the diluent onto the slurry surface at a time.

[0039] When it is necessary to stir the slurry in the slurry bin 6, the connecting plate 34 is rotated by the force rod 35. The rotation of the connecting plate 34 will cause the rotating rod 31 to rotate in the slurry bin 6. At this time, the rotating rod 31 can drive the turntable 32 to rotate. The rotation of the turntable 32 will drive the stirring rod 33 to stir the slurry in the slurry bin 6, thereby promoting the fusion of the diluent and the slurry through stirring.

[0040] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A slurry diluent spraying device, characterized in that, include: A workbench (1) is provided, and an adjustment frame (4) is installed on the upper surface of the workbench (1). An adjustment platform (5) is installed on one side of the adjustment frame (4). A slurry bin (6) is installed on one side of the adjustment platform (5). Two scrapers (7) are installed on the side of the slurry bin (6) near the workbench (1). A placement platform (8) is installed on the side of the adjustment frame (4) near the scrapers (7). A spraying mechanism (2) is provided on one side of the adjustment platform (5). The spraying mechanism (2) includes a connecting rod (201). Both ends of the arc surface of the connecting rod (201) are connected to the adjustment platform. A rotating block (202) is rotatably connected to one side of the connecting rod (201) and a cover plate (203) is fixedly connected to one side of the rotating block (202). A sealing plate (205) is fixedly connected to the side of the cover plate (203) near the slurry tank (6). The side of the sealing plate (205) is press-fitted to the inner wall of the slurry tank (6). A spray nozzle (204) is provided on the side of the cover plate (203). An adjusting plate (206) is fixedly connected to one end of the slurry tank (6). A motor (207) is fixedly connected to one side of the device. A power rod (208) is fixedly connected to the output end of the motor (207). An adjusting block (209) is threadedly connected to the arc surface of the power rod (208). The side of the adjusting block (209) is slidably connected to the inner wall of the adjusting plate (206). A moving plate (210) is fixedly connected to one end of the adjusting plate (206). A connecting ring (214) is fixedly connected to one side of the moving plate (210). A storage tank (211) slides through one of the inner walls of the connecting ring (214). A spray pump (212) is fixedly connected to one side of the material tank (211). The spray nozzle (204) of the spray pump (212) is fixedly connected to the inner wall of the material tank (211). A positioning rod (213) is threaded through the other inner wall of the connecting ring (214). One end of the arc surface of the positioning rod (213) abuts against the arc surface of the material tank (211). A timer (215) is fixedly connected to one side of the adjusting plate (206). A central controller (216) is fixedly connected to the side of the adjusting plate (206) near the timer (215).

2. The slurry diluent spraying device according to claim 1, characterized in that, The adjustment platform (5) is fixedly connected to a limiting block (217) on the side near the connecting rod (201), and the limiting block (217) has an arc-shaped cross section.

3. The slurry diluent spraying device according to claim 1, characterized in that, A handle (218) is fixedly connected to the side of the cover plate (203) away from the sealing plate (205).

4. The slurry diluent spraying device according to claim 1, characterized in that, The positioning rod (213) has several auxiliary grooves (219) on one end of its arc surface, and the several auxiliary grooves (219) are evenly distributed on the positioning rod (213).

5. The slurry diluent spraying device according to claim 1, characterized in that, The inner wall of the slurry bin (6) is provided with an auxiliary mechanism (3). The auxiliary mechanism (3) includes two rotating rods (31). Both rotating rods (31) rotate through the inner wall of the slurry bin (6). One end of the arc surface of the rotating rod (31) is fixedly connected to a turntable (32). A number of stirring rods (33) are fixedly connected to the side of the turntable (32) away from the rotating rod (31). The number of stirring rods (33) are evenly distributed on the turntable (32). The other end of the arc surface of the rotating rod (31) is fixedly connected to a connecting plate (34). A force-applying rod (35) is fixedly connected to the side of the connecting plate (34) away from the rotating rod (31).

6. The slurry diluent spraying device according to claim 5, characterized in that, The arc surface of the force-adding rod (35) is fixedly connected to a friction pad (36), and the arc surface of the friction pad (36) is provided with anti-slip texture.

7. The slurry diluent spraying device according to claim 5, characterized in that, The force-adding rod (35) is a steel rod.

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