Mixing device for photovoltaic adhesive film

Abstract

The invention relates to the technical field of mixing equipment, in particular to a photovoltaic adhesive film mixing device which comprises a mixing tank, a vibration mechanism and an extrusion mechanism, the mixing tank comprises a tank body and a top cover connected to the tank body, and the tank body is provided with a mixing cavity used for containing a mixing bag containing materials; the vibration mechanism is arranged at the bottom of the tank body and used for driving the tank body to vibrate; and the extruding mechanism is arranged on the top cover and is used for extruding and positioning a material mixing bag which is placed in the material mixing cavity and is filled with materials. According to the material mixing device for the photovoltaic adhesive film, materials with small balance weights can be conveniently and uniformly mixed (namely, materials with small total weight can be conveniently and uniformly mixed), and when different materials are continuously mixed, the material mixing tank does not need to be cleaned, so that the operation process is simplified, the labor intensity is reduced, and the production efficiency of material mixing is improved.

Description

Technical Field

[0001] This invention relates to the field of mixing equipment technology, and more specifically, to a mixing device for photovoltaic encapsulant films. Background Technology

[0002] Photovoltaic encapsulants typically use EVA (EVA stands for Polyethylene Vinyl Acetate) films, which are thermosetting adhesive films used to be placed between laminated glass. Due to the superior adhesion, durability, and optical properties of EVA films, they are increasingly being used in current-mode components and various optical products (e.g., the production of photovoltaic panels).

[0003] In the production process of photovoltaic encapsulant film, various raw materials need to be mixed, so a mixing device for photovoltaic encapsulant film is required.

[0004] However, the mixing device for photovoltaic encapsulant film provided by the relevant technology is not convenient for mixing small weight materials evenly (i.e., it is not convenient for mixing materials with a small total amount evenly), and the mixing device for photovoltaic encapsulant film needs to be cleaned every time different materials are mixed continuously, which is not easy to operate and will also reduce the mixing efficiency. Summary of the Invention

[0005] The present invention aims to provide a mixing device for photovoltaic encapsulant films, which facilitates the uniform mixing of materials with small weights (i.e., facilitates the uniform mixing of materials with a small total weight), and eliminates the need to clean the mixing tank when continuously mixing different materials, thereby simplifying the operation process, reducing labor intensity, and improving the production efficiency of mixing.

[0006] The embodiments of the present invention can be implemented as follows: This invention provides a mixing device for photovoltaic encapsulant films, comprising: A mixing tank, comprising a tank body and a top cover connected to the tank body, wherein the tank body is provided with a mixing chamber for placing a mixing bag containing materials; A vibration mechanism, located at the bottom of the tank, is used to drive the tank to vibrate; and, The extrusion mechanism, located on the top cover, is used to extrude and position the mixing bag containing the material placed in the mixing chamber.

[0007] In an optional embodiment, the extrusion mechanism includes a first lifting assembly disposed on the top cover, the first lifting assembly being configured to extend toward the bottom of the tank or retract toward the bottom of the tank.

[0008] In an optional embodiment, the extrusion mechanism further includes an extrusion block that is throttledly connected to the first lifting assembly, the extrusion block being able to move closer to or further away from the bottom of the tank under the lifting action of the first lifting assembly.

[0009] In an optional embodiment, a first wear-resistant layer is provided on the side of the extrusion block opposite to the first lifting assembly.

[0010] In an optional embodiment, the vibration mechanism includes a second lifting assembly, which is drively connected to the tank body to drive the tank body to move vertically; and / or, The vibration mechanism also includes a sliding assembly, which is connected to the tank body to drive the tank body to slide back and forth laterally.

[0011] In an optional implementation, the sliding assembly is driven to the tank via a second lifting assembly.

[0012] In an optional embodiment, the vibration mechanism includes multiple sliding components that are distributed in parallel, and each sliding component is connected to the tank via at least one second lifting component.

[0013] In an optional embodiment, the mixing tank further includes a heating assembly disposed within the tank body.

[0014] In an optional embodiment, the mixing tank further includes a viewing glass disposed within the tank body for observing the mixing chamber; and / or, The inner wall of the tank is provided with a second wear-resistant layer.

[0015] In an alternative implementation, the top cover is rotatably or detachably connected to the tank body.

[0016] The beneficial effects of the photovoltaic encapsulant film mixing device provided in this embodiment of the invention include: When mixing materials using the photovoltaic encapsulant film mixing device provided in this embodiment of the invention, a mixing bag containing the material to be mixed can be placed in the mixing chamber of the tank. Then, the mixing bag in the mixing chamber is positioned by a squeezing mechanism, and the mixing bag in the mixing chamber is vibrated synchronously by a vibration mechanism, so that the material in the mixing bag is mixed evenly. Since the material to be mixed is contained in a mixing bag, and the mixing bag is positioned in the mixing chamber by the squeezing mechanism, the material can be fully and evenly mixed in the relatively small volume of the mixing bag through vibration. Even small-weight materials (i.e., materials with a small total amount) can be fully mixed in the relatively small volume of the mixing bag, and the adhesion of materials inside the tank, which would lead to uneven mixing, can be reduced.

[0017] Meanwhile, since the mixed materials are contained in material bags for mixing, they will not leak and contaminate the inside of the tank. Even when mixing different materials continuously, there is no need to clean the tank and the top cover, which simplifies the operation process, reduces labor intensity, and improves the production efficiency of mixing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the mixing device for photovoltaic encapsulant film in an embodiment of the present invention; Figure 2 This is a schematic diagram of the mixing process of the photovoltaic encapsulant film mixing device in an embodiment of the present invention; Figure 3 This is a schematic diagram of the vibration mechanism in an embodiment of the present invention.

[0020] Icons: 010-Mixing device for photovoltaic encapsulant film; 100-Mixing tank; 110-Tank body; 120-Top cover; 200-Vibration mechanism; 210-Second lifting component; 220-Sliding component; 300-Extrusion mechanism; 400-Heating component; 500-Visualizing glass; 600-Control module; 700-Base; 800-Mixing bag. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0025] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0026] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0027] In the preparation of photovoltaic encapsulant films (e.g., EVA encapsulant films), it is usually necessary to use a mixing device to mix various raw materials.

[0028] The mixing device provided by the related technology includes a mixing tank and a stirring device. The mixing tank is used to hold the materials to be mixed. The stirring device includes stirring blades and a power component that drives the stirring blades. The stirring blades extend into the mixing tank. The power component drives the stirring blades to rotate, so as to break the static balance of the materials in the mixing tank by using the rotating stirring blades, and promote the uniform mixing of different material components, thereby meeting the requirements of the production process for material uniformity.

[0029] However, the inventors discovered that the mixing device provided by the related technology is only suitable for mixing materials with large counterweights (i.e., only suitable for mixing materials with a large total weight). If the material to be mixed has a small counterweight (i.e., a small total weight), the internal space occupied by the material after it is added to the mixing tank is limited. When the power component drives the stirring blades to rotate, some of the material is easily stuck to the tank wall and cannot be stirred by the stirring blades, resulting in uneven mixing. Moreover, since the material will stick to the inner wall of the mixing tank, the mixing tank and stirring blades need to be cleaned when continuously mixing different materials. This not only makes the operation complicated and increases the labor intensity, but also reduces the production efficiency of mixing.

[0030] To address the aforementioned issues, this embodiment provides a novel mixing device for photovoltaic encapsulant films. This device facilitates the uniform mixing of materials with small weights (i.e., facilitates the uniform mixing of materials with relatively small total weights). Furthermore, it eliminates the need for cleaning the mixing tank when continuously mixing different materials, simplifying the operation process, reducing labor intensity, and improving mixing production efficiency. The photovoltaic encapsulant film mixing device of this embodiment will be described below with reference to the accompanying drawings.

[0031] Please refer to Figure 1 , Figure 2 and Figure 3 The photovoltaic encapsulant film mixing device 010 of this embodiment includes a mixing tank 100, a vibration mechanism 200, an extrusion mechanism 300, and a mixing bag 800. The mixing tank 100 includes a tank body 110 and a top cover 120 connected to the tank body 110. The tank body 110 is provided with a mixing chamber for placing the mixing bag 800 containing materials. The vibration mechanism 200 is provided at the bottom of the tank body 110 and is used to drive the tank body 110 to vibrate. The extrusion mechanism 300 is provided at the top cover 120 and is used to extrude and position the mixing bag 800 containing materials placed in the mixing chamber.

[0032] When mixing materials using the photovoltaic encapsulant film mixing device 010 of this embodiment, a mixing bag 800 containing the material to be mixed can be placed in the mixing chamber of the tank 110. Then, the mixing bag 800 in the mixing chamber is positioned by the extrusion mechanism 300, and the tank 110 and the mixing bag 800 in the mixing chamber are vibrated synchronously by the vibration mechanism 200, so that the material in the mixing bag 800 is mixed evenly. Since the material to be mixed is contained in the mixing bag 800, and the mixing bag 800 is positioned in the mixing chamber by the extrusion mechanism 300, the material can be fully and evenly mixed in the relatively small volume of the mixing bag 800 through vibration. Even small-weight materials (i.e., materials with a small total amount) can be fully mixed in the relatively small volume of the mixing bag 800, and the adhesion of materials inside the tank 110 can be reduced, thus reducing the phenomenon of uneven mixing.

[0033] Meanwhile, since the mixed materials are contained in material bags for mixing, they will not leak out and contaminate the inside of the tank 110. Even if different materials are mixed continuously, there is no need to clean the tank 110 and the top cover 120, which simplifies the operation process, reduces labor intensity, and improves the production efficiency of mixing.

[0034] It should be noted that when using the photovoltaic film mixing device 010, after the material to be mixed is placed in the mixing bag 800, an appropriate amount of air is left inside the mixing bag 800. The bag is then tied and sealed, and then placed in the mixing chamber of the tank 110. Based on the amount of air in the mixing bag 800, the extrusion mechanism 300 clamps and positions the mixing bag 800 between the extrusion mechanism 300 and the bottom wall of the tank 110. Because there is air in the mixing bag 800, when the vibration mechanism 200 drives the tank 110 to vibrate, it can drive the mixing bag 800 and the material inside to vibrate together, thereby achieving material mixing.

[0035] Optionally, the mixing bag 800 can be made of PE bag, etc., without specific limitations.

[0036] Optionally, the top cover 120 is rotatably connected to the tank body 110, so that the top cover 120 can be rotated as needed to open or close the opening of the mixing chamber.

[0037] Furthermore, the top cover 120 is rotatably connected to the tank body 110 via a pivot shaft, and when the top cover 120 rotates to close the opening of the mixing chamber, the top cover 120 also engages with the tank body 110 to lock the top cover 120 in the position of closing the opening of the mixing chamber, so as to ensure the reliability of the top cover 120 in closing the mixing chamber.

[0038] Optionally, the top cover 120 is connected with a buckle, and the tank body 110 is connected with a tooth. When the top cover 120 closes the opening of the mixing chamber, the buckle and the tooth engage.

[0039] Of course, in other embodiments, when the top cover 120 is rotated to close the opening of the mixing chamber, it can also be connected to the tank body 110 by fasteners such as bolts, that is, the top cover 120 is locked in the position of closing the opening of the mixing chamber by bolts.

[0040] In other embodiments, the top cover 120 may also be detachably connected to the tank body 110 to open or close the mixing chamber. The detachable connection methods described above include, but are not limited to, threaded connections and interference fits.

[0041] Optionally, the extrusion mechanism 300 includes a first lifting assembly disposed on the top cover 120. The first lifting assembly is configured to extend toward the bottom of the tank 110 or retract away from the bottom of the tank 110. When the top cover 120 closes the opening of the mixing chamber, the extension and retraction of the first lifting assembly reliably clamps the mixing bag 800 containing the material to be mixed between the top cover 120 and the bottom of the tank 110, and ensures that the mixing bag 800 contains an appropriate amount of air. That is, by adjusting the extension and retraction length of the first lifting assembly relative to the bottom of the tank 110, the problem of squeezing out all the air from the mixing bag 800 can be avoided, and the mixing bag 800 can be prevented from bursting.

[0042] Optionally, the extrusion mechanism 300 further includes an extrusion block that is driveably connected to the first lifting assembly. The extrusion block can move closer to or away from the bottom of the tank 110 under the lifting action of the first lifting assembly. When the top cover 120 closes the opening of the mixing chamber, the extrusion block can be moved towards or away from the bottom of the tank 110 by the extension and retraction of the first lifting assembly. This allows the extrusion block to reliably clamp the mixing bag 800 containing the material to be mixed between the top cover 120 and the bottom of the tank 110, ensuring that the mixing bag 800 contains an appropriate amount of air and is not easily crushed, thus ensuring the reliability of mixing within the mixing bag 800.

[0043] Optionally, the first lifting component is an electric actuator. Of course, in other embodiments, the first lifting component can also be a hydraulic cylinder.

[0044] Optionally, the cross-sectional shape of the extrusion block on the set plane is the same as the cross-sectional shape of the mixing chamber of the tank 110, and the cross-sectional area of ​​the extrusion block on the set plane is less than or equal to the cross-sectional area of ​​the mixing chamber; wherein, the set plane is perpendicular to the extension and retraction direction of the first lifting component. This arrangement can further ensure that the mixing bag 800 is reliably clamped between the extrusion block and the bottom of the tank 110 by the extrusion block, so that the material in the mixing bag 800 is reliably mixed evenly when the vibration mechanism 200 drives the tank 110 to vibrate.

[0045] Optionally, a first wear-resistant layer is provided on the side of the extrusion block opposite to the first lifting assembly, for example, a first wear-resistant layer made of PTFE wear-resistant material with a low coefficient of friction. By providing the first wear-resistant layer, the mixing bag 800 used in conjunction with the mixing tank 100 can be protected, improving the problem of the mixing bag 800 being easily worn and damaged.

[0046] Optionally, the first wear-resistant layer can be attached to the side of the extrusion block away from the first lifting assembly by means of bonding or other methods.

[0047] Optionally, the connection method between the extrusion block and the first lifting assembly includes, but is not limited to, threaded connection, snap-fit ​​connection, or connection with fasteners such as bolts.

[0048] Optionally, the connection between the first lifting component and the top cover 120 may include, but is not limited to, threaded connection, snap-fit ​​connection, or connection with fasteners such as bolts.

[0049] Optionally, the inner wall of the tank 110 is provided with a second wear-resistant layer, for example, a second wear-resistant layer made of PTFE wear-resistant material with a low coefficient of friction. By providing a second wear-resistant layer, the mixing bag 800 used in conjunction with the mixing tank 100 can be protected, improving the problem of the mixing bag 800 being easily worn and damaged.

[0050] Alternatively, the tank body 110 itself may be made of plastic or metal materials, without specific limitations.

[0051] Optionally, the second wear-resistant layer may be attached to the inner wall of the tank 110 by means including but not limited to adhesive bonding.

[0052] The structure of the vibration mechanism 200 can be selected as needed; in this embodiment, the vibration mechanism 200 includes a second lifting assembly 210, which is connected to the tank 110 in a transmission manner to drive the tank 110 to rise and fall vertically. During the process of the second lifting assembly 210 driving the tank 110 to rise and fall vertically, it can also drive the mixing bag 800 in the mixing chamber to rise and fall vertically together, and during the rising and falling process, the material in the mixing bag 800 vibrates and mixes.

[0053] Furthermore, the vibration mechanism 200 also includes a sliding assembly 220, which is connected to the tank 110 to drive the tank 110 to slide back and forth laterally. During the process of the sliding assembly 220 driving the tank 110 to slide back and forth laterally, it can also drive the mixing bag 800 in the mixing chamber to move back and forth laterally, and during the process of moving back and forth laterally, the material in the mixing bag 800 vibrates and mixes back and forth.

[0054] Optionally, the sliding component 220 is driven to the tank 110 via the second lifting component 210. That is, the sliding component 220 is driven to the second lifting component 210, and the second lifting component 210 is driven to the tank 110. When the sliding component 220 drives the second lifting component 210 to slide back and forth laterally, the second lifting component 210 drives the tank 110 to slide back and forth laterally, and the second lifting component 210 can directly drive the tank 110 to lift vertically. With this configuration, the sliding component 220 and the second lifting component 210 can be used to achieve lateral and vertical vibration of the tank 110, the mixing bag 800 placed in the mixing chamber of the tank 110, and the material in the mixing bag 800, respectively, to efficiently mix the material.

[0055] Of course, in other embodiments, the connection relationship between the sliding component 220, the second lifting component 210 and the tank 110 can also be set as follows: the second lifting component 210 is connected to the tank 110 through the sliding component 220, that is, the second lifting component 210 is connected to the sliding component 220 through transmission, and the sliding component 220 is directly connected to the tank 110 through transmission. When the second lifting component 210 drives the sliding component 220 to move vertically up and down, the tank 110 can be moved up and down through the sliding component 220.

[0056] Optionally, the vibration mechanism 200 includes multiple sliding components 220, which are distributed in parallel, and each sliding component 220 is connected to the tank 110 via at least one second lifting component 210. By using multiple sliding components 220 to drive the tank 110 to reciprocate laterally, the reliability and stability of the tank 110 driving the mixing bag 800 and the material filled in the mixing bag 800 to sway laterally and mix evenly can be improved.

[0057] The number of sliding components 220 and the number of second lifting components 210 connected to each sliding component 220 can be selected as needed.

[0058] For example, the vibration mechanism 200 includes five sliding components 220, which are arranged in parallel and spaced apart. Along the direction in which the five sliding components 220 are arranged in sequence, the number of second lifting components 210 that are driven to the sliding components 220 is one, one, three, one, and one in sequence. Among them, the three second lifting components 210 that are driven to the same sliding component 220 are arranged in spaced apart in sequence along the direction in which the sliding component 220 drives the second lifting component 210 to slide.

[0059] It should be noted that by setting multiple second lifting components 210, the corresponding positions of the tank 110 can be selectively used to drive the corresponding positions of the second lifting components 210 to move vertically up and down as needed. This ensures the flexibility of the material filled in the mixing bag 800 within the vibrating tank 110, which is beneficial for improving the uniformity of mixing. Of course, multiple second lifting components 210 can also be used simultaneously to drive the tank 110 to rise and fall, so that the material vibrates and mixes evenly.

[0060] The sliding assembly 220 can be selected as needed, for example, a lead screw assembly or a slide rail assembly. Taking the lead screw assembly as an example, the lead screw assembly includes a motor, a lead screw, a threaded component (e.g., a nut or a slider with a threaded hole), and a guide component. The guide component has a slide groove, and the threaded component is slidably inserted into the slide groove. The motor is mounted on the guide component and is connected to the lead screw drive to drive the lead screw to rotate around its own axis. The threaded component is threadedly connected to the lead screw, and the second lifting assembly 210 is connected to the threaded component. When the motor drives the lead screw to rotate around its own axis, the threaded component can move along the axial direction of the lead screw, and drive the second lifting assembly 210 to move along the axial direction of the lead screw (i.e., lateral movement), thereby enabling the tank body 110 to move laterally through the second lifting assembly 210.

[0061] It should be noted that the number of threaded parts connected to the lead screw is adapted to the number of second lifting components 210 that are driven to the sliding assembly 220. For example, when three second lifting components 210 need to be driven to the sliding assembly 220, the lead screw of the sliding assembly 220 has three threaded parts connected to it, and each threaded part is connected to one second lifting component 210. Alternatively, when at least two second lifting components 210 are driven to the sliding assembly 220, all the second lifting components 210 are connected to the same threaded part.

[0062] The second lifting assembly 210 can be selected as needed, including but not limited to electric push rods and hydraulic cylinders.

[0063] Optionally, the photovoltaic encapsulant film mixing device 010 also includes a base 700, and a sliding component 220 is mounted on the base 700, for example, the guide of the sliding component 220 is connected to the base 700.

[0064] After the photovoltaic encapsulant film material is mixed, it needs to be left to stand for a certain period of time to keep warm. This process is to allow the additives in the material to be better absorbed. In order to achieve the heat preservation effect of the material, the mixing tank 100 in this embodiment also includes a heating component 400, which is disposed in the tank body 110.

[0065] It should be noted that the heating component 400 can be connected to the outside of the bottom wall of the tank 110 or to the outside of the side wall of the tank 110 as needed, so as to ensure that the heating component 400 can reliably heat and keep the material in the mixing chamber, while improving the problem that the mixing bag 800 is easily burned by the heating component 400.

[0066] The heating element 400 can be selected as needed, including but not limited to PTC heating elements, resistance wire heating elements, etc.

[0067] Optionally, the mixing tank 100 also includes a viewing glass 500, which is disposed on the side wall of the tank body 110 for observing the mixing chamber. By providing the viewing glass 500 on the side wall of the tank body 110, the mixing status of the materials inside the tank body 110 can be conveniently observed. For example, it facilitates timely detection of problems such as damage to the mixing bag 800, or observation of whether the mixing bag 800 is stably clamped between the extrusion block and the bottom wall of the tank body 110.

[0068] Optionally, the photovoltaic encapsulant film mixing device 010 further includes a control module 600, which is disposed on the outer wall of the tank 110 and electrically connected to the first lifting component, the second lifting component 210, the sliding component 220 and the heating component 400, so as to control the first lifting component, the second lifting component 210, the sliding component 220 and the heating component 400 through the control module 600.

[0069] It should be noted that the control module 600 can refer to a CNC controller (foreign name: computer numerical control), etc., and its working principle is similar to related technologies, so no specific limitation is made here.

[0070] The working process of the photovoltaic encapsulant film mixing device 010 in this embodiment includes: filling all the materials to be mixed into the mixing bag 800, binding and sealing the opening of the mixing bag 800, and leaving air inside the mixing bag 800; placing the mixing bag 800 in the mixing chamber of the tank 110, and closing the opening of the mixing chamber using the top cover 120; controlling the first lifting mechanism to drive the extrusion block to clamp the mixing bag 800 between the extrusion block and the bottom wall of the tank 110, and keeping air inside the mixing bag 800; activating the sliding component 220 and the second lifting component 210 to make the tank 110 vibrate reciprocally in the horizontal and vertical directions, thereby vibrating and mixing the materials in the mixing bag 800 evenly.

[0071] In summary, the photovoltaic film mixing device 010 of the present invention facilitates the uniform mixing of materials with small counterweights (i.e., facilitates the uniform mixing of materials with a small total weight), and does not require cleaning of the mixing tank 100 when continuously mixing different materials, thus simplifying the operation process, reducing labor intensity, and improving the production efficiency of mixing.

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A compounding device for photovoltaic encapsulants, characterized by, The mixing tank (100) comprises a tank body (110) and a top cover (120) connected to the tank body (110), the tank body (110) is provided with a mixing cavity for placing a mixing bag (800) containing materials. A vibration mechanism (200) is arranged at the bottom of the tank body (110) to drive the tank body (110) to vibrate. An extrusion mechanism (300) is arranged on the top cover (120) to extrude and position the mixing bag (800) containing materials placed in the mixing cavity. The extrusion mechanism (300) comprises a first lifting assembly arranged on the top cover (120), which is configured to be elongated towards the bottom of the tank body (110) or shortened away from the bottom of the tank body (110). The extrusion mechanism (300) further comprises an extrusion block in transmission connection with the first lifting assembly, which can approach or move away from the bottom of the tank body (110) under the lifting action of the first lifting assembly.

2. The photovoltaic paste mixing device of claim 1, wherein, The side of the extrusion block away from the first lifting assembly is provided with a first wear-resistant layer.

3. The photovoltaic paste mixing device of claim 2, wherein, The vibration mechanism (200) comprises a second lifting assembly (210) in transmission connection with the tank body (110) to drive the tank body (110) to vertically lift; and / or 4. The photovoltaic paste mixing device of claim 3, wherein, The vibration mechanism (200) further comprises a sliding assembly (220) in transmission connection with the tank body (110) to drive the tank body (110) to slide back and forth in the horizontal direction.

5. The photovoltaic paste mixing device of claim 1, wherein, The sliding assembly (220) is in transmission connection with the tank body (110) through the second lifting assembly (210). The vibration mechanism (200) comprises a plurality of sliding assemblies (220) distributed in parallel, and each sliding assembly (220) is in transmission connection with the tank body (110) through at least one second lifting assembly (210).

6. The photovoltaic paste mixing device of claim 5, wherein, The mixing tank (100) further comprises a heating assembly (400) arranged on the tank body (110).

7. The photovoltaic paste mixing device of claim 5, wherein, The mixing tank (100) further comprises a visual glass (500) arranged on the tank body (110) for observing the mixing cavity; and / or 8. The photovoltaic paste mixing device of claim 1, wherein, The inner wall of the tank body (110) is provided with a second wear-resistant layer.

9. The photovoltaic paste mixing device of claim 1, wherein, The top cover (120) is in rotation connection or detachable connection with the tank body (110). ​ 10. The photovoltaic paste mixing device of claim 1, wherein, ​

Images