Automatic silver paste stirring mechanism

Abstract

The utility model provides an automatic silver paste stirring mechanism, and belongs to the technical field of stirring. Comprising a stirrer body and a stirring barrel arranged on the side surface of the stirrer body. According to the photovoltaic silver paste stirring device, the protective cover and the semicircular collecting shell are arranged, in the stirring process, the protective cover can prevent photovoltaic silver paste from splashing out of the stirring barrel, waste of the photovoltaic silver paste is avoided, after the photovoltaic silver paste is stirred, the stirring shaft drives the stirring blades to move upwards, in the process, the photovoltaic silver paste on the stirring shaft is scraped off through the protective cover, and the photovoltaic silver paste is prevented from being wasted. After a stirring blade is attached to the bottom of a protective cover, the stirring blade drives the protective cover to move upwards synchronously, then two semicircular collecting shells move oppositely, at the moment, the two semicircular collecting shells are located at the bottom of the stirring blade, and the photovoltaic silver paste dripping from the stirring blade is collected in the semicircular collecting shells; and after the photovoltaic silver paste is collected for a period of time, the photovoltaic silver paste is taken out from the semicircular collection shell.

Description

Technical Field

[0001] This utility model relates to the field of stirring technology, and in particular to an automatic stirring mechanism for silver paste. Background Technology

[0002] Photovoltaic silver paste is an electronic paste used in the production of solar cells. It is mainly composed of silver powder, glass powder, organic carriers, and other components. It is coated onto the surface of silicon wafers through screen printing to form electrodes for collecting and transporting photogenerated charge carriers. It is a key material for current conduction in the fabrication of solar cells, and its performance directly affects the photoelectric conversion efficiency and reliability of the cells. In the production process of photovoltaic silver paste, the raw materials are poured into the mixing tank of the stirring mechanism. The motor on the mixer drives the stirring shaft to rotate, which in turn drives the stirring blades to rotate. The stirring blades rotate inside the mixing tank to mix the photovoltaic silver paste raw materials. After the photovoltaic silver paste is mixed, the hydraulic cylinder on the mixer drives the stirring blades upward to detach from the mixing tank, and the photovoltaic silver paste is removed from the mixing tank.

[0003] After the photovoltaic silver paste is stirred by the stirring blades, the stirring blades will detach upwards from the stirring tank. At this time, a large amount of photovoltaic silver paste will be attached to the stirring blades. After the stirring tank is removed, the photovoltaic silver paste on the stirring blades will drip onto the ground, resulting in waste of photovoltaic silver paste. There is a need for further optimization of the stirring mechanism to avoid waste of photovoltaic silver paste. Therefore, this application provides an automatic silver paste stirring mechanism to meet the needs. Summary of the Invention

[0004] This invention provides an automatic silver paste stirring mechanism to solve the problem that photovoltaic silver paste on the stirring blades drips onto the ground after the stirring tank is removed, resulting in waste of photovoltaic silver paste.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An automatic silver paste mixing mechanism includes a mixer body and a mixing tank placed on the side of the mixer body. A mixing shaft is fixed to the output end of the mixer body, the mixing shaft is inserted into the mixing tank, and a mixing blade is fixed to the end of the mixing shaft. The mixing blade is located inside the mixing tank. The mechanism also includes:

[0007] A protective cover is movably fitted onto the surface of the stirring shaft, and during the stirring process, the protective cover adheres to the top of the stirring tank;

[0008] The collection component includes two semi-circular collection shells symmetrically arranged on both sides of the mixing tank. A support and movement component is fixed to the top of the protective cover. The support and movement component is used to support and move the collection shells.

[0009] After mixing is complete, the stirring blades move upwards out of the mixing tank, and the two collection shells move towards each other to the bottom of the stirring blades via the supporting moving components.

[0010] Preferably, the supporting movable assembly includes a support sleeve fixed on the protective cover, and a U-shaped connecting rod is movably inserted into the end of the support sleeve. The U-shaped connecting rod consists of a long rod, a short rod, and a vertical rod. The long rod is movably inserted into the support sleeve, the vertical rod is located between the long rod and the short rod, and the end of the short rod is fixed to the side of the semi-circular collection shell.

[0011] Preferably, a limiting magnetic plate is fixed to the end of the long rod, and the side of the limiting magnetic plate is movably connected to the inner wall of the support sleeve. A magnetic block is fixed to the inner wall of the support sleeve on the side away from the long rod. When the two semi-circular collecting shells are attached together, the limiting magnetic plate is magnetically attracted to the surface of the magnetic block.

[0012] Preferably, a guide surface is provided at the corner of the semi-circular collection shell.

[0013] Preferably, the bottom of the inner wall of the semi-circular collecting shell is provided with a discharge port, and a valve is provided at the bottom of the discharge port.

[0014] Preferably, an inclined plate is fixed in the groove of the vertical surface of the semi-circular collecting shell, and when the two semi-circular collecting shells are attached together, the inclined plate is located above the joint between the two semi-circular collecting shells.

[0015] Preferably, a guide sleeve is fixed to the side of the protective cover, a guide rod is movably inserted into the inner wall of the guide sleeve, and the top of the guide rod is fixed to the mixer body.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects:

[0017] In the above scheme, by setting up a protective cover and a semi-circular collection shell, the protective cover can prevent the photovoltaic silver paste from splashing out of the mixing tank during the stirring process, thus avoiding waste of the photovoltaic silver paste. After the photovoltaic silver paste is stirred, the stirring shaft drives the stirring blade to move upward. During this process, the photovoltaic silver paste on the stirring shaft is scraped off by the protective cover, again avoiding waste of the photovoltaic silver paste. When the stirring blade is attached to the bottom of the protective cover, the stirring blade drives the protective cover to move upward synchronously. Then, the two semi-circular collection shells move towards each other. At this time, the two semi-circular collection shells are located at the bottom of the stirring blade. The photovoltaic silver paste dripping from the stirring blade will be collected in the semi-circular collection shells, further avoiding waste of the photovoltaic silver paste. After collecting for a period of time, the photovoltaic silver paste can be taken out from the semi-circular collection shells.

[0018] By setting a discharge port, after the semi-circular collection shell has collected photovoltaic silver paste for a period of time, the valve at the bottom of the discharge port can be opened to release the photovoltaic silver paste. There is no need to take out the photovoltaic silver paste from the top of the semi-circular collection shell, making the operation more convenient.

[0019] By setting a guide surface, when the semi-circular collection shells move towards each other, the semi-circular collection shells first contact the side of the protective cover. The guide surface guides the semi-circular collection shells, preventing them from getting stuck on the side of the protective cover, making the operation smoother.

[0020] By setting up a U-shaped connecting rod, a support sleeve, a limiting magnetic plate, and a magnetic block, the U-shaped connecting rod slides inside the support sleeve, realizing the movement and support of the semi-circular collection shell. The limiting magnetic plate can prevent the U-shaped connecting rod from detaching from the support sleeve, making the overall use more stable. When the semi-circular collection shells are attached together, the limiting magnetic plate is magnetically attracted to the surface of the magnetic block, which can prevent the two semi-circular collection shells from separating, further increasing the overall stability in use and avoiding the waste of photovoltaic silver paste.

[0021] By setting up an inclined plate, when the two semi-circular collection shells are attached together, the inclined plate is located at the top of the gap between the two semi-circular collection shells. When photovoltaic silver paste drips, it can slide down the inclined plate into the interior of the semi-circular collection shell, preventing the photovoltaic silver paste from flowing out from the gap between the two semi-circular collection shells and further avoiding the waste of photovoltaic silver paste. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side view of the present invention;

[0024] Figure 3 This is a cross-sectional view of the support sleeve of this utility model;

[0025] Figure 4 This is a schematic diagram of the semi-circular collection shell structure of this utility model.

[0026] In the diagram: 1. Mixer body; 2. Mixing shaft; 3. Mixing blades; 4. Mixing tank; 5. Protective cover; 6. Collection assembly; 7. Semi-circular collection shell; 8. Discharge port; 9. Guide surface; 10. U-shaped connecting rod; 11. Support sleeve; 12. Limiting magnetic plate; 13. Magnetic block; 14. Inclined plate; 15. Guide rod; 16. Guide sleeve.

[0027] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0028] The automatic silver paste stirring mechanism provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0029] like Figures 1-4 As shown, an embodiment of this utility model provides an automatic silver paste mixing mechanism, including a mixer body 1 and a mixing tank 4 placed on the side of the mixer body 1. A mixing shaft 2 is fixed to the output end of the mixer body 1, and the mixing shaft 2 is inserted into the mixing tank 4. A mixing blade 3 is fixed to the end of the mixing shaft 2, and the mixing blade 3 is located inside the mixing tank 4. The mixer body 1 includes a motor that can drive the mixing shaft 2 to rotate. The mixer body 1 also includes a hydraulic cylinder that can drive the mixing shaft 2 and the mixing blade 3 to move upward. The mechanism also includes:

[0030] The protective cover 5 is movably fitted onto the surface of the stirring shaft 2. During the stirring process, the protective cover 5 is attached to the top of the stirring tank 4.

[0031] The collection component 6 includes two semi-circular collection shells 7 symmetrically arranged on both sides of the mixing tank 4. A support and movement component is fixed to the top of the protective cover 5. The support and movement component is used to support and move the collection shells.

[0032] After stirring, the stirring blade 3 moves upward out of the stirring tank 4. The two collection shells move towards each other to the bottom of the stirring blade 3 via the supporting moving component. During stirring, the protective cover 5 fits tightly against the top of the stirring tank 4 to form a closed space, effectively preventing the splashing of photovoltaic silver paste caused by stirring and reducing silver paste waste. After stirring, the protective cover 5 can scrape off the silver paste attached to the stirring shaft 2, further avoiding material loss. The semi-circular collection shell 7 in the collection component 6 works with the protective cover 5 to catch the dripping silver paste after the stirring blade 3 moves upward, realizing the full-process recycling of silver paste and reducing production costs.

[0033] like Figures 1-4As shown in this embodiment, the supporting moving component includes a support sleeve 11 fixed on the protective cover 5. A U-shaped connecting rod 10 is movably inserted into the end of the support sleeve 11. The U-shaped connecting rod 10 consists of a long rod, a short rod, and a vertical rod. The long rod is movably inserted into the support sleeve 11, the vertical rod is located between the long rod and the short rod, and the end of the short rod is fixed to the side of the semi-circular collecting shell 7. The support sleeve 11 and the U-shaped connecting rod 10 form a sliding connection structure, providing stable support and flexible movement guidance for the semi-circular collecting shell 7. By pushing the U-shaped connecting rod 10, the operator can drive the semi-circular collecting shell 7 to slide along the long rod within the support sleeve 11, realizing the opposite or opposite movement of the collecting shell, accurately adjusting the position of the collecting shell, and ensuring that it effectively receives silver paste under the stirring blade 3. The operation is convenient and stable.

[0034] like Figure 3 As shown in this embodiment, a limiting magnetic plate 12 is fixed to the end of the long rod. The side of the limiting magnetic plate 12 is movably connected to the inner wall of the support sleeve 11. A magnetic block 13 is fixed to the inner wall of the support sleeve 11 on the side away from the long rod. When the two semi-circular collection shells 7 are attached together, the limiting magnetic plate 12 is magnetically attracted to the surface of the magnetic block 13. The magnetic attraction between the limiting magnetic plate 12 and the magnetic block 13 restricts the U-shaped connecting rod 10 from sliding excessively in the support sleeve 11, preventing it from detaching from the support sleeve 11 and causing the collection shell to fall off. On the other hand, when the two semi-circular collection shells 7 move to the attached state, the magnetic attraction makes the collection shell tightly fixed, avoiding separation of the collection shell due to external force or impact from silver paste dripping, and ensuring the stability and sealing of the silver paste collection process.

[0035] like Figure 4 As shown in this embodiment, a guide surface 9 is provided at the corner of the semi-circular collection shell 7. The oblique design of the guide surface 9 can effectively prevent the collection shell from getting stuck due to angular deviation or positional misalignment when it moves, so that the collection shell can move smoothly and accurately to the designated position below the stirring blade 3, thereby improving the smoothness of operation.

[0036] like Figures 3-4 As shown in this embodiment, a discharge port 8 is provided at the bottom of the inner wall of the semi-circular collection shell 7. A valve (not shown in the figure) is provided at the bottom of the discharge port 8. The discharge port 8, together with the bottom valve, provides a convenient discharge channel for the collected silver paste. When the semi-circular collection shell 7 is full of silver paste, the operator only needs to open the valve of the discharge port 8 to quickly release the silver paste, avoiding spillage or waste of silver paste due to the pouring operation. At the same time, it simplifies the silver paste recycling process and improves work efficiency.

[0037] like Figures 3-4As shown in this embodiment, an inclined plate 14 is fixed in the groove of the vertical surface of the semi-circular collection shell 7. When the two semi-circular collection shells 7 are attached together, the inclined plate 14 is located above the joint between the two semi-circular collection shells 7. After the two semi-circular collection shells 7 are attached together, the inclined plate 14 covers the joint and forms a flow guiding structure. When silver paste drips into the joint of the collection shell, the inclined plate 14 can guide the silver paste to slide down the inclined surface into the inside of the collection shell, preventing the silver paste from leaking from the joint and avoiding ground pollution or material loss, thereby further improving the integrity and cleanliness of silver paste collection.

[0038] like Figures 1-2 As shown in this embodiment, a guide sleeve 16 is fixed to the side of the protective cover 5, and a guide rod 15 is movably inserted into the inner wall of the guide sleeve 16. The top of the guide rod 15 is fixed to the mixer body 1. The guide sleeve 16 and the guide rod 15 form a guide structure. During the process of the stirring blade 3 driving the protective cover 5 to move up and down, a stable moving track is provided for the protective cover 5. By sliding the guide sleeve 16 along the guide rod 15, the protective cover 5 can be prevented from shifting or shaking during movement.

[0039] Working principle: When using the automatic silver paste stirring mechanism, first pour the photovoltaic silver paste into the stirring tank 4. At this time, the protective cover 5 is movably sleeved on the stirring shaft 2 and makes it fit against the top of the stirring tank 4. The protective cover 5 is used to prevent the silver paste from splashing during the stirring process. Start the stirring machine body 1. The motor in the stirring machine body 1 drives the stirring shaft 2 to rotate. The stirring shaft 2 drives the stirring blade 3 to stir the silver paste in the stirring tank 4.

[0040] After mixing is completed, the hydraulic cylinder inside the mixer body 1 drives the mixing shaft 2 to move upward. The mixing shaft 2 drives the mixing blades 3 to move upward. During the upward movement of the mixing shaft 2, the protective cover 5 is still located at the top of the mixing tank 4. The protective cover 5 scrapes off the silver paste attached to the mixing shaft 2. When the mixing blades 3 are attached to the bottom of the protective cover 5, the protective cover 5 continues to move upward synchronously. At this time, the two U-shaped connecting rods 10 are manually pushed. The U-shaped connecting rods 10 slide in the support sleeve 11, which drives the semi-circular collection shells 7 symmetrically arranged on both sides of the mixing tank 4 to move towards each other. The guide surface 9 of the semi-circular collection shell 7 contacts the side of the protective cover 5 to achieve guidance and prevent jamming.

[0041] When the two semi-circular collection shells 7 move to the bottom of the stirring blade 3 and stick together, the limiting magnetic plate 12 is magnetically attracted to the surface of the magnetic block 13 to prevent the semi-circular collection shells 7 from separating. The silver paste dripping from the stirring blade 3 is collected in the semi-circular collection shells 7. If silver paste drips into the gap between the two semi-circular collection shells 7, it will slide down the inclined plate 14 into the shell.

[0042] After collecting for a period of time, open the valve of the discharge port 8 at the bottom of the inner wall of the semi-circular collection shell 7 to release the collected silver paste. Throughout the process, the guide sleeve 16 and the guide rod 15 cooperate to ensure the stability of the protective cover 5 during its up-and-down movement.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic silver paste mixing mechanism, comprising a mixer body (1) and a mixing tank (4) placed on the side of the mixer body (1), wherein a mixing shaft (2) is fixed at the output end of the mixer body (1), the mixing shaft (2) is inserted into the mixing tank (4), and a mixing blade (3) is fixed at the end of the mixing shaft (2), the mixing blade (3) being located inside the mixing tank (4), characterized in that, Also includes: The protective cover (5) is movably sleeved on the surface of the stirring shaft (2). During the stirring process, the protective cover (5) is attached to the top of the stirring tank (4). The collection component (6) includes two semi-circular collection shells (7) symmetrically arranged on both sides of the mixing tank (4). A support and movement component is fixed on the top of the protective cover (5). The support and movement component is used to support and move the collection shells. After stirring is completed, the stirring blade (3) moves upward out of the stirring tank (4), and the two collection shells move towards each other to the bottom of the stirring blade (3) through the support moving component.

2. The automatic silver paste stirring mechanism according to claim 1, characterized in that, The supporting moving assembly includes a support sleeve (11) fixed on the protective cover (5). A U-shaped connecting rod (10) is movably inserted into the end of the support sleeve (11). The U-shaped connecting rod (10) consists of a long rod, a short rod and a vertical rod. The long rod is movably inserted into the support sleeve (11), the vertical rod is located between the long rod and the short rod, and the end of the short rod is fixed to the side of the semi-circular collection shell (7).

3. The automatic silver paste stirring mechanism according to claim 2, characterized in that, The end of the long rod is fixed with a limiting magnetic plate (12). The side of the limiting magnetic plate (12) is movably connected to the inner wall of the support sleeve (11). A magnetic block (13) is fixed on the inner wall of the support sleeve (11) away from the long rod. When the two semi-circular collection shells (7) are attached together, the limiting magnetic plate (12) is magnetically attracted to the surface of the magnetic block (13).

4. The automatic silver paste stirring mechanism according to claim 1, characterized in that, A guide surface (9) is provided at the corner of the semi-circular collection shell (7).

5. The automatic silver paste stirring mechanism according to claim 1, characterized in that, The bottom of the inner wall of the semi-circular collection shell (7) is provided with a discharge port (8), and a valve is provided at the bottom of the discharge port (8).

6. The automatic silver paste stirring mechanism according to claim 1, characterized in that, An inclined plate (14) is fixed in the groove of the vertical surface of the semi-circular collection shell (7). When the two semi-circular collection shells (7) are attached together, the inclined plate (14) is located above the gap between the two semi-circular collection shells (7).

7. The automatic silver paste stirring mechanism according to claim 1, characterized in that, The protective cover (5) has a guide sleeve (16) fixed on its side. A guide rod (15) is movably inserted into the inner wall of the guide sleeve (16). The top of the guide rod (15) is fixed on the mixer body (1).

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