Glue weighing device and screen printing equipment

Abstract

The application discloses a glue amount weighing device and a silk printing equipment. The glue amount weighing device comprises a shell, a weighing assembly, a sampling assembly and a positioning table. The shell is internally provided with an accommodating space, the accommodating space is provided with an opening at one end in a first direction, the weighing assembly is arranged in the accommodating space, the sampling assembly is arranged in the accommodating space, the sampling assembly is in contact with the weighing assembly, and the positioning table is arranged around the inner side of the opening. Compared with the prior art, the electronic precision balance is not needed for weighing, thereby achieving the technical effects of reducing the weighing cost and simplifying the operation.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module technology, and more specifically, to an adhesive weighing device and a screen printing device. Background Technology

[0002] The grid lines used on photovoltaic cells are silver-supported strips attached to the cell surface. These consist of main grids and fine grids, with the main grids being thicker. After current is generated, it flows through the fine grids to the main grids, and then from there to the solder ribbon for discharge. OBB (Zero Busbar) technology is an innovative technique in photovoltaic cell manufacturing. It eliminates the silver electrodes of the main grids on the cell, replacing them with solder ribbons that directly interconnect with the fine grids to collect current from them. On one hand, this technology effectively reduces silver loss. On the other hand, compared to the 0.2-0.4mm diameter solder ribbons used in MBB (Multi-Busbar Technology in photovoltaics, defined as an advanced manufacturing process that optimizes current collection efficiency by increasing the number of main grids on the cell surface), the OBB process uses 0.2mm diameter solder ribbons, resulting in a smaller shading area and shorter current transmission distance, thus reducing power loss and improving power generation efficiency. The main stringing methods in the OBB process are dispensing, welding dispensing, etc. Welding dispensing generally involves first connecting the various grids on the cell with solder ribbon, and then applying adhesive droplets to the welding points between the grids and solder ribbon on the cell through dispensing or printing. The adhesive droplets are then cured to form adhesive dots, which reinforce and protect the welding points.

[0003] Using the above dispensing method, since the shape of a single glue droplet is very small (generally 1.2mm wide, 2.0mm long, and 0.3mm high), if it is necessary to obtain the total weight of glue consumed on a single battery cell, an electronic precision balance with an accuracy of one ten-thousandth or higher is required to weigh and measure the individual glue droplets, thereby obtaining the total weight of glue consumed on a single battery cell from the weight of the individual glue droplets.

[0004] Because measuring the total weight of adhesive consumed by a single droplet using an electronic precision balance is costly and complex, obtaining the total weight of adhesive consumed on a single battery cell suffers from both high cost and complex operation. Summary of the Invention

[0005] This application provides a glue weighing device and a screen printing equipment, which can reduce weighing costs and simplify operation.

[0006] In a first aspect, embodiments of this application provide a glue weighing device, including a housing, a weighing component, a sampling component, and a positioning stage. The housing has a receiving space with an opening at one end along a first direction. The weighing component and the sampling component are disposed within the receiving space, and the sampling component is in contact with the weighing component. The positioning stage is arranged around the inner side of the opening.

[0007] In the above technical solution, the glue weighing device collects all glue droplets during the glue dispensing or printing process of battery cells through the sampling component, so that the number of glue droplets during the weighing process is large and much larger than the number of individual glue droplets, thus making the weight of the weighed sample large enough, thereby eliminating the need to use an electronic precision balance for weighing, thereby achieving the technical effect of reducing weighing costs and simplifying operation.

[0008] In some embodiments, the sampling assembly includes a sampling element and a containment element, the containment element being disposed around the outer edge of the sampling element.

[0009] In the above technical solution, by setting a barrier around the outer edge of the sampling component, the sampling area can be defined by the sampling component and the barrier together, thereby confining the glue droplets within the sampling area on the surface of the sampling component and improving the accuracy of weighing measurement.

[0010] In some embodiments, the positioning stage includes a plurality of positioning stages, which are evenly and spaced apart around the inner side of the opening.

[0011] In the above technical solution, a number of positioning platforms are evenly and spaced around the inner side of the opening. The multiple positioning platforms can provide multi-point positioning and support for the equipment used for dispensing or printing adhesive in the string welding process, thereby facilitating the assembly of the adhesive weighing device with the equipment used for dispensing or printing adhesive in the string welding process.

[0012] In some embodiments, the positioning stage includes an annular structure disposed around the inside of the opening.

[0013] In the above technical solution, in this embodiment, by setting the positioning platform as an annular structure surrounding the inner side of the opening, the annular structure can provide comprehensive positioning and support for the equipment used for dispensing or printing adhesive in the string welding dispensing process, thereby further facilitating the assembly of the adhesive weighing device with the equipment used for dispensing or printing adhesive in the string welding dispensing process.

[0014] In some embodiments, an opening / closing component is also included, which is disposed outside the receiving space and opens or closes the opening.

[0015] In the above technical solution, by setting an opening and closing component to open or close the opening, when the sampling component is sampling, the opening and closing component can open the opening to facilitate sampling. When the weighing component is weighing and measuring, the opening and closing component can close the opening, so that the containing space forms a closed space, thereby preventing foreign objects from entering the containing space, thus improving the accuracy of weighing and measuring.

[0016] In some embodiments, the opening and closing assembly includes a first motor, a first rotating shaft, and a roller blind. The drive end of the first motor is connected to the first rotating shaft, the first rotating shaft is disposed on the housing, and the roller blind is sleeved on the first rotating shaft. The first motor drives the first rotating shaft to open or close the opening of the roller blind.

[0017] In the above technical solution, the opening and closing components include a first motor, a first rotating shaft, and a roller blind. When the first motor rotates forward, it can drive the roller blind to extend to close the opening through the first rotating shaft. When the first motor rotates in reverse, it can drive the roller blind to retract to open the opening through the first rotating shaft.

[0018] In some embodiments, the opening and closing assembly includes a second motor, a second rotating shaft, a mounting base, and a cover plate. The drive end of the second motor is connected to the second rotating shaft, the second rotating shaft is rotatably connected to the mounting base, the mounting base is disposed on the housing, and the cover plate is connected to the second rotating shaft. The second motor drives the second rotating shaft to cause the cover plate to open or close the opening.

[0019] In the above technical solution, the opening and closing component includes a second motor, a second rotating shaft, a mounting base, and a cover plate. When the second motor rotates forward, the cover plate can be driven to rotate toward the opening to close the opening through the second rotating shaft. When the second motor rotates in reverse, the cover plate can be driven to rotate away from the opening through the second rotating shaft to open the opening.

[0020] In some embodiments, a handle is also included, which is disposed on the housing.

[0021] In the above technical solution, a handle is provided on the housing, which makes it easier for the operator to pick up the glue weighing device.

[0022] In some embodiments, the handles include two handles, which are disposed opposite each other on both sides of the housing.

[0023] In the above technical solution, by setting two handles on both sides of the housing and setting the two handles opposite each other, the operator can more easily pick up the glue weighing device through the two opposite handles.

[0024] Secondly, embodiments of this application provide a device for weighing adhesive volume, a stencil, and a scraper assembly, including any of the embodiments of the first aspect, wherein the stencil is disposed on the adhesive volume weighing device and the scraper assembly is disposed on the stencil. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, 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 this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 Structural diagrams of the adhesive weighing device provided in some embodiments of this application; Figure 2 For some embodiments of this application Figure 1 Top view; Figure 3 For other embodiments of this application Figure 1 Top view; Figure 4 Structural diagram of an adhesive weighing device provided for some embodiments of this application (showing opening and closing components); Figure 5 Structural diagram of an adhesive weighing device provided for other embodiments of this application (showing opening and closing components); Figure 6 Structural diagram of a glue weighing device provided for some embodiments of this application (showing the handle); Figure 7 This is a structural diagram of a screen printing device provided in some embodiments of this application.

[0027] icon: 1-Shell, 11-Opening, 12-Accommodation space; 2-Weighing components; 3-Sampling assembly, 31-Sampling component, 32-Enclosure component; 4-Positioning stage; 5-Opening and closing assembly, 51-First pivot, 52-Roller blind, 53-Second pivot, 54-Mounting base, 55-Cover plate; 6-Handle; 100-Scraper assembly; 200-Stencil; 300 - Glue weighing device; X - First direction. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0030] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0033] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0034] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0035] The main stringing methods in the OBB process are dispensing, welding dispensing, etc. Welding dispensing generally involves first connecting the various grids on the cell with solder ribbon, and then applying adhesive droplets to the welding points between the grids and solder ribbons on the cell through dispensing or printing. The adhesive droplets are then cured to form adhesive dots, which reinforce and protect the welding points.

[0036] In actual production, cost monitoring often requires measuring the total weight of adhesive consumed on a single solar cell. However, due to the tiny size of a single adhesive droplet (typically 1.2mm wide, 2.0mm long, and 0.3mm high), obtaining the total weight of adhesive consumed on a single solar cell typically requires weighing a single adhesive droplet using an electronic precision balance with an accuracy of 0.001% or higher. The total weight of adhesive consumed on a single solar cell can then be obtained from the weight of the single adhesive droplet.

[0037] Because measuring the total weight of adhesive consumed by a single droplet using an electronic precision balance is costly and complex, obtaining the total weight of adhesive consumed on a single battery cell suffers from both high cost and complex operation.

[0038] Based on the above considerations, in order to solve the problems of high cost and complex operation in obtaining the total weight of adhesive consumed on a single battery cell, this application provides an adhesive weighing device, including a housing, a weighing component, a sampling component, and a positioning stage. The housing has a receiving space with an opening at one end along a first direction. The weighing component and the sampling component are disposed within the receiving space and are in contact with each other. The positioning stage is arranged around the inner side of the opening.

[0039] In this adhesive weighing device, a positioning platform is first installed at the opening of the housing. This platform facilitates the assembly of the adhesive weighing device with equipment used for dispensing or printing adhesive in the stringing process. Secondly, a sampling component within the housing collects all adhesive droplets during the dispensing or printing process. Finally, a weighing component, located within the housing and in contact with the sampling component, measures the weight of all sampled adhesive droplets, thus obtaining the total weight of adhesive consumed for a single battery cell. Compared to using an electronic precision balance to measure individual adhesive droplets and obtain the total weight of adhesive consumed, this adhesive weighing device collects all adhesive droplets during the dispensing or printing process of the battery cell through the sampling component. This results in a larger number of adhesive droplets during the weighing process, far exceeding the number of individual droplets, thus making the weighed sample weight sufficiently large. Therefore, it eliminates the need for an electronic precision balance, achieving the technical effects of reducing weighing costs and simplifying operation.

[0040] Please refer to Figure 1 , Figure 1 This is a structural diagram of a glue weighing device provided in some embodiments of this application. An embodiment of this application provides a glue weighing device, including a housing 1, a weighing component 2, a sampling component 3, and a positioning platform 4. The housing 1 has a receiving space 12, with an opening 11 at one end along a first direction X. The weighing component 2 is disposed within the receiving space 12, and the sampling component 3 is disposed within the receiving space 12, contacting the weighing component 2. The positioning platform 4 is arranged around the inner side of the opening 11.

[0041] The housing 1 is used to house the various components that make up the glue weighing device. The housing 1 can be a hollow structure with an opening 11 at one end. The housing 1 can be in various shapes, such as cylindrical, cuboid, etc. The housing 1 can be made of various materials, such as copper, iron, aluminum, steel, aluminum alloy, etc.

[0042] The first direction X can be the thickness direction of the shell.

[0043] The weighing component 2 can be a mechanical balance, and may also include a weighing sensor and a weighing tray.

[0044] In an embodiment where the weighing component 2 includes a weighing sensor and a weighing tray, the weighing sensor is disposed at the bottom of the receiving space 12, the weighing tray is connected to the weighing sensor, and the surface of the weighing tray facing away from the weighing sensor is in contact with the surface of the sampling component 3.

[0045] The opening 11 has two oppositely arranged sidewalls, one of which is close to the receiving space 12 and the other is away from the receiving space 12. The positioning platform 4 is arranged around the inner side of the opening 11, which can be the sidewall of the opening 11 close to the receiving space 12.

[0046] In this embodiment, a positioning platform 4 is first set at the opening 11 of the housing 1. The positioning platform 4 facilitates the assembly of the glue weighing device with the equipment used for dispensing or printing glue in the string welding dispensing process. Secondly, the sampling component 3 set in the accommodating space 12 collects all glue droplets during the dispensing or printing process. Finally, the weighing component 2 set in the accommodating space 12 and in contact with the sampling component 3 completes the weight measurement of all sampled glue droplets, thereby obtaining the total weight of glue consumed by a single battery cell. Compared with using an electronic precision balance to measure a single glue droplet to obtain the total weight of glue consumed, the glue weighing device collects all glue droplets during the battery cell dispensing or printing process through the sampling component 3. This results in a larger number of glue droplets during the weighing process, which is much larger than the number of a single glue droplet, thus making the weight of the weighed sample large enough. Therefore, it is not necessary to use an electronic precision balance for weighing, thereby achieving the technical effects of reducing weighing costs and simplifying operation.

[0047] In some embodiments, please continue to refer to Figure 1 The sampling component 3 includes a sampling element 31 and a containment element 32, with the containment element 32 surrounding the outer edge of the sampling element 31.

[0048] The sampling element 31 can be a sampling plate. In the embodiment where the opening 11 is rectangular, the sampling element 31 is rectangular. It can be understood that the orthographic projection of the sampling element 31 is rectangular in the projection plane perpendicular to the first direction X. In the embodiment where the opening 11 is circular, the sampling element 31 is circular. It can be understood that the orthographic projection of the sampling element 31 is circular in the projection plane perpendicular to the first direction X.

[0049] The enclosure component 32 can be a enclosure plate, and there can be multiple enclosure components 32. Multiple enclosure components 32 are arranged around the outer edge of the sampling component 31 and connected in sequence.

[0050] The sampling component 31 can be fixedly connected to the enclosure component 32, for example, by bonding or integral molding.

[0051] The sampling component 31 can be detachably connected to the enclosure component 32, for example, by threaded connection, snap-fit ​​connection, etc.

[0052] In this embodiment, by providing a surrounding baffle 32 around the outer edge of the sampling member 31, the sampling area can be defined by the sampling member 31 and the surrounding baffle 32 together, thereby confining the glue droplets within the sampling area on the surface of the sampling member 31 and improving the accuracy of weighing measurement.

[0053] In some embodiments, please refer to Figure 2 , Figure 2 For some embodiments of this application Figure 1 The top view shows that the positioning platform 4 comprises multiple platforms, which are evenly spaced around the inner side of the opening 11.

[0054] Positioning stations 4 can be 4, 6, 8, etc.

[0055] The positioning platform 4 can be fixedly connected to the opening 11, for example, by bonding or integral molding.

[0056] The positioning platform 4 can be detachably connected to the opening 11, for example, by threaded connection, snap-fit ​​connection, etc.

[0057] In this embodiment, a number of positioning platforms 4 are evenly and spaced around the inner side of the opening 11. The multiple positioning platforms 4 can provide multi-point positioning and support for the equipment used for dispensing or printing adhesive in the string welding dispensing process, thereby facilitating the assembly of the adhesive weighing device with the equipment used for dispensing or printing adhesive in the string welding dispensing process.

[0058] In some embodiments, please refer to Figure 3 , Figure 3 For other embodiments of this application Figure 1 A top view. The positioning platform 4 includes a ring-shaped structure that surrounds the inside of the opening 11.

[0059] In the embodiment where the opening 11 is rectangular, the positioning platform 4 is a rectangular ring structure. It can be understood that the orthographic projection of the positioning platform 4 is a rectangular ring in the projection plane perpendicular to the first direction X. In the embodiment where the opening 11 is circular, the positioning platform 4 is a circular ring structure. It can be understood that the orthographic projection of the positioning platform 4 is a circular ring in the projection plane perpendicular to the first direction X.

[0060] In this embodiment, by setting the positioning platform 4 as an annular structure surrounding the inner side of the opening 11, the annular structure can provide comprehensive positioning and support for the equipment used for dispensing or printing adhesive in the string welding dispensing process, thereby further facilitating the assembly of the adhesive weighing device with the equipment used for dispensing or printing adhesive in the string welding dispensing process.

[0061] In some embodiments, please refer to Figures 4-5 , Figure 4 A structural diagram of the adhesive weighing device provided for some embodiments of this application (showing the opening and closing components). Figure 5 This is a structural diagram of a glue weighing device provided for other embodiments of this application (showing an opening and closing assembly). It also includes an opening and closing assembly 5, which is disposed on the housing 1 and opens or closes the opening 11.

[0062] In this embodiment, by setting the opening and closing component 5 to open or close the opening 11, when the sampling component 3 is sampling, the opening and closing component 5 can open the opening 11 to facilitate sampling. When the weighing component 2 is weighing and measuring, the opening and closing component 5 can close the opening 11, so that the accommodating space 12 forms a closed space, thereby preventing foreign objects from entering the accommodating space 12, thus improving the accuracy of weighing and measuring.

[0063] In some embodiments, please continue to refer to Figure 4 The opening and closing assembly 5 includes a first motor ( Figure 4 (not shown in the image), first rotating shaft 51 and roller shutter 52, first motor ( Figure 4 The drive end of the first motor (not shown) is connected to the first rotating shaft 51, which is mounted on the housing 1. The roller shutter 52 is sleeved on the first rotating shaft 51. Figure 4 (Not shown in the image) Drive the first rotating shaft 51 to drive the roller shutter 52 to open or close the opening 11.

[0064] In this embodiment, the opening and closing component 5 includes a first motor ( Figure 4 (not shown in the image), first rotating shaft 51 and roller shutter 52, first motor ( Figure 4 When the first motor (not shown) rotates forward, it can drive the roller shutter 52 to extend and close the opening 11 via the first rotating shaft 51. Figure 4 When reversed (not shown), the first rotating shaft 51 can drive the roller shutter 52 to retract and open the opening 11.

[0065] In some embodiments, please refer to Figure 5 The opening and closing assembly includes a second motor ( Figure 5 (not shown in the image), second rotating shaft 53, mounting base 54 and cover plate 55, second motor ( Figure 5 The drive end of the second motor (not shown) is connected to the second rotating shaft 53. The second rotating shaft 53 is rotatably connected to the mounting base 54, which is mounted on the housing 1. The cover plate 55 is connected to the second rotating shaft 53. Figure 5 (Not shown in the image) Drive the second rotating shaft 53 to cause the cover plate 55 to open or close the opening 11.

[0066] In this embodiment, the opening and closing component 5 includes a second motor ( Figure 5 (not shown in the image), second rotating shaft 53, mounting base 54 and cover plate 55, second motor ( Figure 5 When the second motor (not shown) rotates forward, it can drive the cover plate 55 to rotate toward the opening 11 to close the opening 11 via the second rotating shaft 53. Figure 5 When reversed (not shown), the cover plate 55 can be rotated away from the opening 11 by the second rotating shaft 53 to open the opening 11.

[0067] In some embodiments, please refer to Figure 6 , Figure 6 This is a structural diagram of a glue weighing device provided in some embodiments of this application (showing a handle). It also includes a handle 6, which is disposed on the housing 1.

[0068] In this embodiment, a handle 6 is provided on the housing 1, which makes it easier for the operator to pick up the glue weighing device.

[0069] In some embodiments, please continue to refer to Figure 6 The handle 6 includes two handles, which are arranged opposite each other on both sides of the housing 1.

[0070] In this embodiment, by providing two handles 6 on each side of the housing 1 and positioning the two handles 6 opposite each other, the operator can more easily pick up the glue weighing device using the two opposing handles 6.

[0071] Please refer to Figure 7 , Figure 7 This is a structural diagram of a screen printing device provided in some embodiments of this application. The embodiments of this application provide a screen printing device, including a glue weighing device 300, a stencil 200, and a squeegee assembly 100 as provided in any of the above embodiments. The stencil 200 is disposed on the glue weighing device 300; the squeegee assembly 100 is disposed on the stencil 200.

[0072] The mesh plate 200 can be installed on the positioning platform 4 of the glue weighing device 300.

[0073] The scraper assembly 100 can be mounted above the screen plate 200 via a mounting bracket, and there is a gap between the scraper assembly 100 and the screen plate 200.

[0074] In this embodiment, firstly, a corresponding mesh plate 200 is selected according to the position and number of welding points between the fine grid and the solder ribbon on the battery cell. That is, the position and number of mesh holes on the mesh plate 200 correspond to the position and number of welding points between the fine grid and the solder ribbon on the battery cell. Secondly, the mesh plate 200 is installed on the weighing device 300. Then, photosensitive adhesive is sprayed on the area of ​​the mesh plate 200 without mesh holes. Finally, the photosensitive adhesive is scraped through the mesh plate 200 by the scraper assembly to form adhesive droplets that fall onto the sampling component 3 of the adhesive weighing device 300. The weighing component 2 completes the weighing measurement of all sampled adhesive droplets. Thus, before proceeding to the next step of adhesive application on the battery cell, the total weight of adhesive consumed by the battery cell can be obtained.

[0075] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0076] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A glue weighing device, characterized in that, include: A housing, wherein the housing has an accommodating space, and one end of the accommodating space has an opening along a first direction; A weighing component, wherein the weighing component is disposed within the accommodating space; A sampling component is disposed within the accommodating space and is in contact with the weighing component; A positioning platform is arranged around the inside of the opening.

2. The adhesive weighing device as described in claim 1, characterized in that, The sampling assembly includes a sampling element and a containment element, wherein the containment element is arranged around the outer edge of the sampling element.

3. The adhesive weighing device as described in claim 1, characterized in that, The positioning platform includes multiple platforms, which are evenly and spaced apart around the inner side of the opening.

4. The adhesive weighing device as described in claim 1, characterized in that, The positioning platform includes a ring structure that surrounds the inner side of the opening.

5. The adhesive weighing device according to any one of claims 1-4, characterized in that, It also includes an opening and closing component, which is disposed outside the receiving space, and the opening and closing component opens or closes the opening.

6. The adhesive weighing device as described in claim 5, characterized in that, The opening and closing assembly includes a first motor, a first rotating shaft, and a roller blind. The drive end of the first motor is connected to the first rotating shaft, the first rotating shaft is disposed on the housing, and the roller blind is sleeved on the first rotating shaft. The first motor drives the first rotating shaft to drive the roller blind to open or close the opening.

7. The adhesive weighing device as described in claim 5, characterized in that, The opening and closing assembly includes a second motor, a second rotating shaft, a mounting base, and a cover plate. The drive end of the second motor is connected to the second rotating shaft, and the second rotating shaft is rotatably connected to the mounting base. The mounting base is disposed on the housing, and the cover plate is connected to the second rotating shaft. The second motor drives the second rotating shaft to open or close the opening.

8. The glue weighing device according to any one of claims 1-4, characterized in that, It also includes a handle, which is disposed on the housing.

9. The adhesive weighing device as described in claim 8, characterized in that, The handles include two, which are disposed opposite each other on both sides of the housing.

10. A screen printing device, characterized in that, include: The adhesive weighing device as described in any one of claims 1-9; A stencil, which is mounted on the adhesive weighing device; A scraper assembly is disposed on the mesh plate.

Images