Thickness-controllable full-opening steel plate

Abstract

The utility model relates to a full-opening steel plate with controllable thickness, which at least comprises a first metal layer and a second metal layer, the second metal layer is laminated on one side of the first metal layer, a printing opening is formed on the first metal layer, a printing area and a non-printing area are arranged on the second metal layer, the printing area corresponds to the printing opening, and the non-printing area corresponds to the printing opening. And a communicating part is arranged in the non-printing area and penetrates through the second metal layer. The communication part is additionally arranged on the second metal layer, so that a measuring instrument can conveniently extend into the communication part to be in contact with the first metal layer, independent thickness measurement of the first metal layer can be realized, the thickness measurement accuracy of the first metal layer is improved, and the high-precision requirement of printing is met.

Description

Technical Field

[0001] This utility model relates to the field of steel plate printing technology, and in particular to a fully open steel plate with controllable thickness. Background Technology

[0002] Fully open stencils are a new type of stencil used in screen printing technology. Their open areas penetrate directly into the material, forming a completely open channel for printing conductive paste, allowing a long grid to be formed on the surface of the solar cell in one go.

[0003] Traditional fully open-face steel plates are made by stacking two metal layers. Because the fully open-face steel plate is very thin after forming, the overall thickness cannot be accurately measured. Measuring the thickness of a single metal layer is even more difficult. Currently, neither manufacturers nor raw material suppliers can accurately measure and control the thickness of a single metal layer, which cannot meet the control requirements for high-precision printing.

[0004] Therefore, there is a need for a fully open steel plate with controllable thickness that can measure the thickness of a single metal layer, improve measurement accuracy, and meet the high-precision printing requirements. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a fully open steel plate with controllable thickness.

[0006] The technical solution of this utility model is as follows:

[0007] A fully open steel plate with controllable thickness includes at least a first metal layer and a second metal layer, the second metal layer being stacked on one side of the first metal layer, the first metal layer having a printing opening, the second metal layer having a printing area and a non-printing area, the printing area corresponding to the printing opening, the non-printing area having a connecting portion, the connecting portion penetrating the second metal layer.

[0008] As a further improvement of this utility model, the non-printing area surrounds the printing area.

[0009] As a further improvement of this utility model, the connecting part includes at least one through hole, the through hole being circular, rectangular, triangular, or trapezoidal in shape.

[0010] As a further improvement of this utility model, there are multiple through holes, which are evenly distributed around the printing area.

[0011] As a further improvement of this utility model, the number of through holes is even, and the through holes are arranged symmetrically with respect to the center of the printing area.

[0012] As a further improvement of this utility model, all of the through holes have the same shape and size.

[0013] As a further improvement of this utility model, the edge of the through hole away from the first metal layer is chamfered.

[0014] As a further improvement of this utility model, the connecting portion includes at least one through groove, and the through groove includes at least a straight portion or a curved portion.

[0015] As a further improvement of this utility model, the connecting portion includes at least one through loop surrounding the printing area.

[0016] As a further improvement of this utility model, the through ring is a circular ring, or a rectangular ring, or a triangular ring, or a trapezoidal ring.

[0017] According to the above-described solution, the beneficial effects of this utility model are as follows:

[0018] This invention adds a connecting part to the second metal layer, which facilitates the insertion of measuring instruments into the connecting part and their contact with the first metal layer. This enables separate thickness measurement of the first metal layer, improving the accuracy of the first metal layer thickness measurement and meeting the high-precision requirements of printing. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the present invention from a first angle;

[0020] Figure 2 This is a structural schematic diagram of the present invention from a second angle;

[0021] Figure 3 This is a schematic diagram of the chamfered structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the first embodiment of the through groove of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the second embodiment of the through groove of this utility model;

[0024] Figure 6 This is a schematic diagram of the through ring structure of this utility model.

[0025] In the diagram: 1. First metal layer; 2. Second metal layer; 31. Printed area; 32. Non-printed area; 4. Through hole; 41. Chamfer; 5. Through groove; 6. Through ring. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] See Figure 1 and Figure 2This utility model provides a fully open steel plate with controllable thickness, comprising at least a first metal layer 1 and a second metal layer 2. The second metal layer 2 is stacked on one side of the first metal layer 1. The side of the first metal layer 1 that is in contact with the second metal layer 2 is the first side, and the side of the first metal layer 1 that is away from the second metal layer 2 is the second side. The first metal layer 1 has a printing opening for printing an entire fine grid in a single print. The second metal layer 2 has a printing area 31 and a non-printing area 32. The printing area 31 corresponds to the printing opening, and the non-printing area 32 has a connecting portion that penetrates the second metal layer 2. In this design, considering the entire open-face steel plate, the surface of the first metal layer 1 is intact, while the surface of the second metal layer 2 has a connecting portion. From one side of the second metal layer 2, the first surface of the first metal layer 1 can be seen and contacted through this connecting portion. This invention, by adding a connecting portion to the second metal layer 2, facilitates the insertion of a measuring instrument into the connecting portion and its contact with the first surface of the first metal layer 1. This enables separate thickness measurement of the first metal layer 1, improving the accuracy of the thickness measurement and meeting the high-precision requirements of printing. Various measuring instruments can be used.

[0030] Measuring instrument 1: micrometer. When measuring, the operator inserts one end of the micrometer into the connecting part and abuts it against the first surface of the first metal layer 1, and abuts the other end of the micrometer against the second surface of the first metal layer 1. The thickness of the first metal layer 1 can be obtained from the reading of the micrometer.

[0031] Measuring Instrument 2: Rangefinder. During measurement, the staff sets up two rangefinders on both sides of the fully open steel plate. The laser of one rangefinder shines on the second surface of the first metal layer 1 and measures the distance L1 between it and the second surface of the first metal layer 1. The laser of the other rangefinder shines on the surface of the first surface of the first metal layer 1 through the connecting part and measures the distance L2 between it and the first surface of the first metal layer 1. The distance L3 between the two rangefinders is also measured. The thickness L4 of the first metal layer 1 is calculated based on the three measured distances, i.e., L4 = L3 - L2 - L1.

[0032] Of course, the measuring instruments are not limited to the two types mentioned above; other instruments with measuring distances can also be used to measure the thickness of the first metal layer 1.

[0033] As one embodiment of this utility model, the printed area 31 and the non-printed area 32 can adopt the following three structures:

[0034] Structure 1: Non-printing area 32 surrounds printing area 31;

[0035] Structure 2: Printed area 31 surrounds non-printed area 32;

[0036] Structure 3: The printing area 31 and the non-printing area 32 are set adjacent to each other, that is, the printing area 31 and the non-printing area 32 are independent of each other and there is no enclosing relationship between them.

[0037] As one embodiment of this utility model, the connecting part includes at least one through hole 4. The through hole 4 is circular, rectangular, triangular, trapezoidal, rhomboid, or any other irregular shape, as long as it meets the measurement requirements of the measuring instrument and will not interfere with the measuring instrument when it is working, thus avoiding unnecessary impact on the measurement results.

[0038] As an embodiment of this utility model, there are multiple through holes 4, which are evenly distributed around the printing area 31. The operator can measure multiple sets of thickness values ​​of the first metal layer 1 through the multiple through holes 4, and confirm whether the overall thickness of the first metal layer 1 is uniform based on the measured thickness values, especially whether the thickness of the first metal layer 1 in each area around the printing area 31 is uniform, so as to control the overall thickness distribution of the first metal layer 1.

[0039] As an embodiment of this utility model, the number of through holes 4 is even, and the through holes 4 are arranged symmetrically with respect to the center of the printing area 31, that is, the through holes 4 are grouped in pairs, and the line connecting the two through holes 4 in each group is the radius of a circle with the center of the printing area 31 as the center. Preferably, the distance between the lines connecting the two through holes 4 in each group is the same, that is, all the through holes 4 are arranged on the circumference of a circle with the center of the printing area 31 as the center, which can further control the thickness distribution of the first metal layer 1 around the printing area 31. Preferably, there are four through holes 4, and the four through holes 4 are respectively arranged at one diagonal of the printing area 31.

[0040] As one embodiment of this utility model, the shape and size of the through hole 4 can adopt the following five structures:

[0041] Structure 1: All through holes 4 have the same shape and size;

[0042] Structure 2: All through holes 4 have the same shape, and at least one through hole 4 has a different size from the other through holes 4;

[0043] Structure 3: All through holes 4 have the same area, and at least one through hole 4 has a different shape from the other through holes 4;

[0044] Structure 4: At least one through hole 4 has a shape that is different from the other through holes 4, and at least one through hole 4 has an area that is different from the other through holes 4. The two through holes 4 mentioned above can be two separate through holes 4 or the same through hole 4, that is, the shape and size of the through hole 4 are different from the other through holes 4.

[0045] Structure 5: All the through holes 4 have different shapes and sizes.

[0046] See Figure 3As an embodiment of this utility model, the edge of the through hole 4 away from the first metal layer 1 is provided with a chamfer 41. When the measuring instrument uses a micrometer or other equipment that needs to be inserted into the through hole 4, the chamfer 41 can prevent the edge of the through hole 4 from scratching or damaging the surface of the measuring instrument, thereby improving the safety of the measuring instrument.

[0047] See Figure 4 and Figure 5 As one embodiment of this utility model, the connecting portion includes at least one through groove 5. The measuring instrument can continuously measure the thickness of the first metal layer 1 through the through groove 5, and can more accurately and conveniently control the thickness distribution of the first metal layer 1. Preferably, the through groove 5 includes at least a straight portion or a curved portion, that is, the through groove 5 can adopt the following various structures:

[0048] Structure 1: The through slot 5 is a straight line;

[0049] Structure 2: The through slot 5 is a curve;

[0050] Structure 3: The through groove 5 is a broken line, formed by bending a straight line;

[0051] Structure 4: Through slot 5 can be any combination of straight lines, curves, and broken lines.

[0052] See Figure 6 As an embodiment of this utility model, the connecting part includes at least one through ring 6, which surrounds the printing area 31. The measuring instrument can perform a comprehensive, accurate and continuous measurement of the thickness distribution of the first metal layer 1 around the printing area 31 through the through ring 6. Of course, multiple through rings 6 can be set, and multiple through rings 6 can expand outward from the printing area 31 in sequence, which can further improve the control over the thickness distribution of the first metal layer 1.

[0053] As one embodiment of this utility model, the through ring 6 can be of any shape, such as a circular ring, a rectangular ring, a triangular ring, or a trapezoidal ring. It is sufficient to surround the printing area 31 within the through ring 6. When multiple through rings 6 are provided, the shapes of the multiple through rings 6 can be the same or different. Each through ring 6 is independent of each other and does not interfere with each other.

[0054] As one embodiment of this utility model, the connecting part can adopt any combination of through hole 4, through groove 5, and through ring 6, that is, it can adopt the following four combinations:

[0055] Assembly 1: The connecting part includes at least one through hole 4 and at least one through groove 5;

[0056] Combination 2: The connecting portion includes at least one through hole 4 and at least one through ring 6;

[0057] Combination 3: The connecting part includes at least one through groove 5 and at least one through loop 6;

[0058] Combination 4: The connecting part includes at least one through hole 4, at least one through groove 5, and at least one through ring 6.

[0059] Staff can select appropriate combinations of connecting parts according to specific usage requirements to meet the specific accuracy and comprehensiveness requirements for measuring the thickness of the first metal layer 1, thereby improving the overall applicability.

[0060] In summary, this utility model provides a fully open steel plate with controllable thickness. By adding a connecting part to the second metal layer 2, it is easy for measuring instruments to extend into the connecting part and contact the first metal layer 1, enabling individual thickness measurement of the first metal layer 1, improving the accuracy of the thickness measurement, and meeting the high precision requirements of printing. Multiple through holes 4 are evenly distributed around the printing area 31, allowing operators to measure multiple sets of thickness values ​​of the first metal layer 1 through the through holes 4, and to confirm whether the overall thickness of the first metal layer 1 is uniform based on the measured thickness values, thereby controlling the overall thickness distribution of the first metal layer 1. The chamfer 41 can prevent the edges of the through holes 4 from scratching or damaging the surface of the measuring instrument, improving the safety of the measuring instrument.

[0061] It should be emphasized that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A fully open steel plate with controllable thickness, characterized in that, It includes at least a first metal layer (1) and a second metal layer (2), the second metal layer (2) being stacked on one side of the first metal layer (1), the first metal layer (1) having a printing opening, the second metal layer (2) having a printing area (31) and a non-printing area (32), the printing area (31) corresponding to the printing opening, the non-printing area (32) having a connecting portion, the connecting portion penetrating the second metal layer (2).

2. The thickness-controllable fully open steel plate according to claim 1, characterized in that, The non-printed area (32) surrounds the printed area (31).

3. The thickness-controllable fully open steel plate according to claim 2, characterized in that, The connecting portion includes at least one through hole (4), the through hole (4) being circular, rectangular, triangular, or trapezoidal in shape.

4. The thickness-controllable fully open steel plate according to claim 3, characterized in that, There are multiple through holes (4), and the multiple through holes (4) are evenly distributed around the printing area (31).

5. The thickness-controllable fully open steel plate according to claim 4, characterized in that, The number of the through holes (4) is even, and each pair of through holes (4) is arranged symmetrically with respect to the center of the printing area (31).

6. The thickness-controllable fully open steel plate according to claim 3, characterized in that, All of the through holes (4) have the same shape and size.

7. The thickness-controllable fully open steel plate according to claim 3, characterized in that, The through hole (4) has a chamfer (41) at one end away from the first metal layer (1).

8. The thickness-controllable fully open steel plate according to claim 2, characterized in that, The connecting portion includes at least one through groove (5), and the through groove (5) includes at least a straight portion or a curved portion.

9. The thickness-controllable fully open steel plate according to claim 2, characterized in that, The connecting portion includes at least one through loop (6) surrounding the printing area (31).

10. The thickness-controllable fully open steel plate according to claim 9, characterized in that, The through loop (6) is a circular ring, or a rectangular ring, or a triangular ring, or a trapezoidal ring.

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