Feeding spoon for photovoltaic silver paste production

Abstract

The utility model provides a kind of feeding spoon for photovoltaic silver paste production, comprising: scoop head (1), the scoop head has first side and opposite second side;Spoon handle (2), it includes :-the first linear section (21) that extends from the first side of scoop head;-the curved section (20) that extends from the first linear section along the curved path of second side departure;-the second linear section (22) that extends from curved section;And the third linear section (23) that extends from second linear section, wherein the included angle α is formed between second linear section and third linear section;Wherein, the spoon handle has the first fulcrum (3) at the connecting place of second linear section and curved section, and the second fulcrum (4) at the connecting place of second linear section and third linear section.This feeding spoon adopts bending type spoon handle, can reduce wrist pressure when operating, improves holding comfort.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic material preparation, and in particular to a feeding spoon used in the production process of photovoltaic silver paste. Background Technology

[0002] Photovoltaic silver paste is a key material used in the fabrication of solar cell electrodes, and its production process places high demands on the precision, efficiency, and operational safety of the feeding process. With the rapid development of the photovoltaic industry, higher standards have been set for the automation and refinement of silver paste production processes. In the silver paste preparation stage, feeding is the primary step, and its operation directly affects the accuracy of the silver paste ratio, material utilization, and production efficiency.

[0003] Currently, the commonly used methods for silver paste dispensing in the industry mainly include the pouring method combined with a dropper and the traditional dispensing spoon method. However, these traditional methods generally have the following problems: On the one hand, the pouring and dropper method is labor-intensive and easily causes silver paste to splash, which wastes materials and brings potential safety hazards; on the other hand, the structural design of traditional dispensing spoons is not good, especially the lack of ergonomic considerations in the handle design, which can easily lead to operator hand fatigue after prolonged use, and due to the poor compatibility between the spoon body and the container or equipment, it is difficult to achieve high-precision dispensing, thus affecting the stability and consistency of the entire production process.

[0004] Therefore, there is a need for a feeding tool that is structurally optimized, lightweight and convenient, and has good process adaptability to improve the feeding efficiency, safety and accuracy in the photovoltaic silver paste production process. Utility Model Content

[0005] The purpose of this invention is to solve one or more of the above-mentioned problems and other problems, and to provide a feeding device with optimized structure, convenient operation and good ergonomic design, which is suitable for the production process of photovoltaic silver paste and can effectively improve operating efficiency and process safety.

[0006] Therefore, this utility model provides a feeding spoon for photovoltaic silver paste production, the feeding spoon comprising: a spoon head having a first side and an opposite second side, the spoon head defining a spoon cavity suitable for receiving silver paste raw materials; a spoon handle including a first straight section extending from the first side of the spoon head; an arcuate section extending from the first straight section along a curved path away from the second side; a second straight section extending from the arcuate section; and a third straight section extending from the second straight section, wherein the second straight section and the third straight section form an included angle α; wherein the spoon handle has a first fulcrum at the connection between the second straight section and the arcuate section, and a second fulcrum at the connection between the second straight section and the third straight section.

[0007] The main improvement of the aforementioned feeding spoon lies in providing a handle with a fishing rod-like bending design. The handle is composed of multiple straight segments and an arc-shaped segment connected sequentially, forming a first and second fulcrum. This two-point positioning creates a lever-like mechanical structure, optimizing the direction of force application during use, reducing operating effort, and improving the labor-saving scooping effect. The handle with this structure is ergonomic, facilitating stable control and reducing hand fatigue during manual feeding.

[0008] In a preferred embodiment, the spoon handle further includes a finger support extending vertically from the end of the third straight segment toward the spoon head. Advantageously, the finger support is preferably configured to conform to the fingers and has a length of 2cm ± 0.5cm. Providing such a finger support facilitates the operator's grip on the spoon handle, provides a stable support point for the fingers, reduces hand fatigue, and enhances grip comfort and operational accuracy.

[0009] In a preferred embodiment, the length of the first straight section of the spoon handle can be selected as 11cm ± 2cm.

[0010] In a preferred embodiment, the radius of curvature of the arc segment can be selected as 4cm ± 0.5cm, and the central angle β of the arc segment can be selected as 67° ± 5°.

[0011] In one design, the length of the second straight segment can be selected as 3cm ± 0.5cm.

[0012] In one design, the length of the third straight section can be chosen to be 6cm ± 1cm.

[0013] According to a preferred embodiment of the present invention, the second straight segment is tangent to the arc segment, and the included angle α between the second straight segment and the third straight segment is 150°±5°.

[0014] The feeding spoon of this utility model, by adopting a spoon handle with the above-mentioned dimensions, not only allows the length of the feeding spoon to be adapted to various containers in the industrial environment, namely most sizes of material buckets, but also this bent spoon handle is suitable for hanging, making it easy to store the feeding spoon.

[0015] Furthermore, those skilled in the art should understand that the dimensional data of the aforementioned segments of the spoon handle are merely exemplary. Depending on the specific application scenario, other suitable dimensions may also be selected, which are also covered within the scope of this application.

[0016] In a preferred embodiment, the handle is constructed with a rectangular cross-section, and the width of the handle is greater than its thickness. This structural configuration of the handle ensures that the spoon is not easily twisted or deformed during use.

[0017] In one embodiment of this invention, to enhance structural strength and adapt to the physicochemical properties of silver paste raw materials, the feeding spoon preferably adopts an integral molding structure, and the material is stainless steel or polytetrafluoroethylene.

[0018] In summary, the feeding spoon provided by this utility model has good operational performance, high structural strength, and good stability in use, and is particularly suitable for the needs of precise and stable feeding in the production process of photovoltaic silver paste. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of one embodiment of a feeding spoon suitable for the production process of photovoltaic silver paste according to the present invention.

[0021] The accompanying drawings are merely illustrative and not necessarily drawn to scale. They show only those parts necessary to illustrate the invention, while other parts may be omitted or simply mentioned. In addition to the components shown in the drawings, the invention may include other components. Detailed Implementation

[0022] The crucible tongs with a double-layer clamping structure according to an exemplary embodiment of the present invention are described below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to enable those skilled in the art to gain a more complete understanding of the present invention. However, it will be apparent to those skilled in the art that implementations of the present invention may not include some of these specific details. Furthermore, it should be understood that the present invention is not limited to the specific embodiments described. Rather, the present invention can be conceived to be practiced with any combination of the following features and elements, regardless of whether they relate to different embodiments. Therefore, the following features, embodiments, and advantages are for illustrative purposes only and should not be construed as elements or limitations of the claims unless expressly set forth in the claims.

[0023] The terms "first" and "second" are used below to describe the elements of this application. These terms are used only to distinguish the individual elements and not to limit the nature, order, or number of these elements. The terms "comprising" and "having" are used to indicate an open-ended inclusion and mean that there may be additional elements / components besides those listed.

[0024] Figure 1A preferred embodiment of a feeding scoop 10 for photovoltaic silver paste production according to the present invention is shown. As can be seen from the figure, the feeding scoop 10 includes a scoop head 1 suitable for containing silver paste raw materials and a bent scoop handle 2 extending from the scoop head. The scoop head 1 constitutes a front-end scooping component, preferably with a bowl-shaped structure. Furthermore, the scoop head 1 has a first side 11 and an opposing second side 12, with the scoop handle 1 extending from the first side of the scoop head 1, the entire handle located on the first side 11. In practical applications, the shape of the scoop head 1 can be designed as circular, elliptical, or asymmetrical, and its capacity can be designed to meet the requirements of single-quantity feeding, for example, 100ml to 300ml. The scoop head is preferably made of a metal such as stainless steel or polytetrafluoroethylene, a material with good chemical stability, to withstand the corrosiveness of the active ingredients in the silver paste.

[0025] In the above embodiment, the handle 2 of the feeding spoon 10 is a bent structure formed by connecting multiple segments sequentially. Specifically, the handle 2 sequentially includes a first straight segment 21 extending from the first side 11 of the spoon head 1, an arc-shaped segment 20 extending from the first straight segment 21 in a direction away from the second side 12 of the spoon head, a second straight segment 22 extending from the arc-shaped segment 20, and a third straight segment 23 extending from the second straight segment 22. The second straight segment 22 is tangent to the arc-shaped segment 20, and an obtuse angle α is formed between the second straight segment and the third straight segment, preferably within the range of 150°±5°. The handle constructed in this way has a first fulcrum 3 at the connection between the second straight segment and the arc-shaped segment, and a second fulcrum 4 at the connection between the second straight segment and the third straight segment. This handle, with its two fulcrums providing positioning, constructs a lever-like mechanical structure, which optimizes the direction of force application, reduces operating force, and improves the effort-saving effect of scooping during use.

[0026] Furthermore, the relative positions and angles between the aforementioned sections form a "fishing rod" bending structure, making the feeding spoon more ergonomic in actual use, reducing wrist rotation angles, and thus alleviating fatigue from prolonged operation. The angled design gives the spoon handle a fishing rod-like slanted shape, allowing the user to naturally keep their wrist upright during operation, effectively preventing fatigue or pain caused by prolonged use.

[0027] See you again Figure 1In the illustrated embodiment, the spoon handle 2 may further include a finger support 24 extending from the end 230 of the third straight segment toward the spoon head, the finger support 24 being perpendicular to the third straight segment 23. Preferably, the finger support is configured to conform to the shape of the finger and has a length of 2cm ± 0.5cm. This finger support provides a stable support point, reduces hand fatigue, and enhances grip comfort and operational accuracy. Furthermore, the finger support is preferably configured to conform to the gripping area of ​​the middle segment of the finger, providing additional support during feeding, flipping, or operation, which helps improve control accuracy and safety. The finger support may also be designed with a slightly curved surface to enhance comfort.

[0028] In the above embodiment, the length of the first straight segment 21 can be selected, for example, 11cm ± 2cm. Furthermore, the first straight segment 21 is substantially perpendicular to the plane of the spoon head. This configuration allows the user's wrist to be in a natural position when holding or operating the spoon head, reducing fatigue. Moreover, the length is chosen such that the spoon can easily enter the container to retrieve materials without being too long and causing operational inconvenience. The arc-shaped segment 20 of the spoon handle 2 has a certain radius of curvature and central angle, preferably a radius of curvature of 4cm ± 0.5cm and a central angle β of 67° ± 5°. The presence of the arc-shaped segment helps adjust the overall angle and center of gravity of the spoon, improving stability during dispensing and reducing the risk of spillage. The second straight segment 22 connects to the arc-shaped segment 20 and continues to extend away from the spoon head, with a length of, for example, 3cm ± 0.5cm, and is a key segment for achieving the structural fulcrum function. The first fulcrum 3 at the connection between the second straight segment 22 and the arc-shaped segment 20 is the rotation center when the spoon is tilted.

[0029] In this embodiment, the length of the third straight section is, for example, 6cm ± 1cm. The second fulcrum 4 at the connection between the third straight section 23 and the second straight section 22 serves as a support point, contacting the container edge or other fixed surface when the user holds the spoon handle, pours, or dispenses a quantity of material. This acts as a lever fulcrum, helping the operator to flip or tilt the spoon head with less hand force. It also reduces wrist strain, especially during frequent dispensing or operations with large amounts of silver paste, effectively alleviating hand fatigue. When the spoon is operating at the container edge, the second fulcrum 4 acts as a contact limit point, preventing the spoon handle from sliding further down and avoiding dispensing errors or over-pouring due to instability. The second fulcrum 4 forms a repeatable and controllable contact reference point during operation. The user can rely on this second fulcrum to fix the angle for precise control each time they dispense material, making it particularly suitable for dispensing materials like photovoltaic silver paste that are highly sensitive to proportions.

[0030] In a preferred embodiment, the spoon handle 2 may have a uniform cross-section, which may be rectangular, with a width greater than its thickness, for example, a width of 1.5 cm and a thickness of 0.6 cm. The rectangular cross-section not only enhances the grip friction but also improves the bending stiffness, preventing torsion or deformation during loading or feeding.

[0031] Preferably, the feeding spoon of this invention is an integral structure, which can be manufactured by one-time molding or injection molding processes, or by welding followed by polishing. The preferred material for the feeding spoon is stainless steel or polytetrafluoroethylene (PTFE). Stainless steel has high strength, corrosion resistance, and is easy to clean, making it suitable for high-frequency applications; while PTFE is chemically inert, does not easily adhere to silver paste residue, and is suitable for silver paste raw materials that are corrosive to metals.

[0032] When using the feeding spoon 10 provided by this utility model, the operator can hold the spoon handle 2 with one hand and control the angle and direction of the spoon head 1 by resting the thumb or forefinger on the finger support part 24, thereby accurately feeding the silver paste raw material into the designated device or container. The first fulcrum 3 and the second fulcrum 4 provided by the spoon handle 2 provide good mechanical support for the entire spoon body during rotation, tilting, and placement.

[0033] In summary, the feeding spoon provided by this utility model, through its scientific and reasonable structural design, especially the "fishing rod" bending structure, the two-point support design, and the ergonomic finger support, has good feel, operability, and industrial adaptability, making it particularly suitable for weighing and feeding operations in high-precision processes such as photovoltaic silver paste.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, it is not limited thereto. Any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope defined in the claims.

Claims

1. A feeding spoon for photovoltaic silver paste production, characterized in that, The feeding spoon (10) includes: A spoon head (1), the spoon head having a first side (11) and an opposite second side (12); Spoon handle (2), the spoon handle comprising: - A first straight segment (21) extending from the first side (11) of the spoon head; - An arc-shaped segment (20) extending from the first straight segment along a curved path away from the second side (12); - The second straight segment (22) extending from the arc-shaped segment; and - A third straight segment (23) extending from the second straight segment, wherein an obtuse angle α is formed between the second straight segment and the third straight segment; The spoon handle has a first fulcrum (3) at the junction of the second straight section and the arcuate section, and a second fulcrum (4) at the junction of the second straight section and the third straight section.

2. The feeding spoon according to claim 1, characterized in that, The spoon handle (2) also includes a finger support (24) extending from the end (230) of the third straight section toward the spoon head, and the finger support is perpendicular to the third straight section.

3. The feeding spoon according to claim 1, characterized in that, The length of the first straight segment (21) is 11cm ± 2cm.

4. The feeding spoon according to claim 3, characterized in that, The radius of curvature of the arc segment (20) is 4cm ± 0.5cm, and the central angle β of the arc segment is 67° ± 5°.

5. The feeding spoon according to claim 3 or 4, characterized in that, The length of the second straight segment (22) is 3cm ± 0.5cm.

6. The feeding spoon according to claim 5, characterized in that, The length of the third straight section (23) is 6cm ± 1cm.

7. The feeding spoon according to any one of claims 1 to 4, characterized in that, The second straight segment (22) is tangent to the arc segment (20), and the included angle α between the second straight segment (22) and the third straight segment (23) is 150°±5°.

8. The feeding spoon according to claim 2, characterized in that, The finger support is configured to fit the finger and has a length of 2cm ± 0.5cm.

9. The feeding spoon according to any one of claims 1 to 4, characterized in that, The spoon handle has a rectangular cross-section, and the width of the spoon handle is greater than its thickness.

10. The feeding spoon according to any one of claims 1 to 4, characterized in that, The feeding spoon is a one-piece structure and is made of stainless steel or polytetrafluoroethylene.

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