MLCC printing screen

Abstract

The application relates to a MLCC printing screen plate. The MLCC printing screen plate comprises a screen frame, screen gauze, a protective sticker, a first cushion block and a second cushion block. The screen frame is in a rectangular frame structure, and comprises a first support frame and a second support frame arranged oppositely. The screen gauze is covered on the bottom surface of the screen frame, and the edge of the screen gauze is connected to the screen frame. The protective sticker is covered at the connection between the screen gauze and the screen frame. The first cushion block comprises a first bottom plate covering the bottom surface of the protective sticker below the first support frame. The second cushion block comprises a second bottom plate covering the bottom surface of the protective sticker below the second support frame. The MLCC printing screen plate has the advantages of high production quality stability and low scrap rate.

Description

Technical Field

[0001] This application relates to the field of MLCC production equipment technology, and in particular to an MLCC printing screen. Background Technology

[0002] MLCC is a monolithic capacitor composed of a series of layered ceramic films and printed electrodes. In the production process of MLCC, a printing press prints the internal electrode paste onto the films using an MLCC printing screen. This process requires preventing other impurities from falling onto the films to avoid damage or contamination that would render them unusable.

[0003] MLCC printing screens consist of mesh fabric connected to the bottom of the screen frame via protective stickers. However, when the MLCC printing screen is installed onto the carrier plate of the printing press, the protective stickers are relatively soft and easily rub against the carrier plate, causing wear and tear. This wear and tear causes fragments of the protective stickers to fall onto the film surface, resulting in contamination and scrapping of the film. This leads to poor production quality stability and a high scrap rate. Utility Model Content

[0004] Therefore, it is necessary to provide a new type of MLCC printing screen to address the problems of poor production quality stability and high scrap rate caused by MLCC printing screens.

[0005] This utility model provides an MLCC printing screen, comprising: A wire frame, the wire frame having a rectangular frame structure, the wire frame including a first support frame and a second support frame disposed opposite to each other; A mesh covering the bottom surface of the mesh frame, with the edges of the mesh connected to the mesh frame; A protective sticker is used to cover the connection between the mesh and the frame. The first pad includes a first base plate that covers the bottom surface of the protective sticker below the first support frame; the second pad includes a second base plate that covers the bottom surface of the protective sticker below the second support frame.

[0006] In one embodiment, the first pad further includes two first side plates connected to the first base plate, the first side plates covering both sides of the first support frame in the length direction; the second pad further includes two second side plates connected to the second base plate, the second side plates covering both sides of the second support frame in the length direction.

[0007] In one embodiment, the first side plate is fixedly connected to both sides of the first support frame; the second side plate is fixedly connected to both sides of the second support frame.

[0008] In one embodiment, the first side plate is provided with a first connecting hole, and the two sides of the first support frame are provided with first threaded holes corresponding to the first connecting hole; the second side plate is provided with a second connecting hole, and the two sides of the second support frame are provided with second threaded holes corresponding to the second connecting hole.

[0009] In one embodiment, both the first connecting hole and the second connecting hole are waist-shaped holes extending vertically.

[0010] In one embodiment, the wire frame further includes a first connecting frame and a second connecting frame, wherein the first supporting frame, the first connecting frame, the second supporting frame, and the second connecting frame are sequentially connected to form the rectangular frame structure; the first supporting frame has first clearance mounting positions on both sides along its length direction, and when the first side plate is installed on both sides of the first supporting frame, the two sides along the length direction of the first supporting frame are flush with the outer edges of the first connecting frame and the second connecting frame, respectively; the second supporting frame has second clearance mounting positions on both sides along its length direction, and when the second side plate is installed on both sides of the second supporting frame, the two sides along the length direction of the second supporting frame are flush with the outer edges of the first connecting frame and the second connecting frame, respectively.

[0011] In one embodiment, the first pad further includes a third side plate connected to the first base plate, the third side plate being fixedly connected to the first base plate and the first side plate, and the third side plate covering the outer side of the first support frame; the second pad further includes a fourth side plate connected to the second base plate, the fourth side plate being fixedly connected to the second base plate and the second side plate, and the fourth side plate covering the outer side of the second support frame.

[0012] In one embodiment, the edges of the mesh are attached to the frame with adhesive.

[0013] In one embodiment, the protective sticker is an aluminum foil sticker.

[0014] In one embodiment, the first base plate, the first side plate, and the third side plate are integrally formed; the second base plate, the second side plate, and the fourth side plate are integrally formed.

[0015] The aforementioned MLCC printing screen connects the edge of the mesh to the bottom surface of the screen frame, with a protective sticker covering the connection between the mesh and the frame. To prevent the protective sticker from abrading the printing press's carrier plate, a first pad is installed on the first support frame of the screen frame, and a second pad is installed on the second support frame. The first base plate of the first pad covers the protective sticker on the first support frame, and the second base plate of the second pad covers the protective sticker on the second support frame. This prevents the protective sticker from directly contacting the printing press's carrier plate and causing abrasion, thus avoiding fragments of the worn protective sticker falling onto the film and causing contamination and scrap. This design offers advantages such as high production quality stability and a low scrap rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the MLCC printing screen described in the embodiments of this application.

[0017] Figure 2 This is a three-dimensional structural diagram of the MLCC printing screen described in the embodiments of this application.

[0018] Figure 3 This is a schematic diagram of the structure of the first pad and the second pad of the MLCC printing screen according to an embodiment of this application.

[0019] Figure 4 This is an exploded view of the MLCC printing screen described in the embodiments of this application.

[0020] Figure 5 for Figure 4 An enlarged schematic diagram of point A.

[0021] Figure 6 for Figure 4 An enlarged schematic diagram of point B.

[0022] Icon labels: 100, Frame; 110, First supporting frame; 110A, First threaded hole; 110B, First clearance mounting position; 120, Second supporting frame; 120A, Second threaded hole; 120B, Second clearance mounting position; 130, First connecting frame; 140, Second connecting frame; 200. Mesh fabric; 300. Protective sticker; 400, First pad; 410, First base plate; 420, First side plate; 420A, First connecting hole; 430, Third side plate; 440, First fastener; 500, Second pad; 510, Second base plate; 520, Second side plate; 520A, Second connecting hole; 530, Fourth side plate; 540, Second fastener. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0025] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0029] See Figures 1 to 3 This illustration shows a schematic diagram of the structure of an MLCC printing screen according to an embodiment of this application. The MLCC printing screen is applied to a printing press used in the production of MLCCs. The MLCC printing screen includes a frame 100, a mesh 200, a protective sticker 300, a first pad 400, and a second pad 500. The frame 100 has a rectangular frame structure and includes a first support frame 110 and a second support frame 120 disposed opposite to each other. Further, the frame 100 also includes a first connecting frame 130 and a second connecting frame 140. The first support frame 110, the first connecting frame 130, the second support frame 120, and the second connecting frame 140 are sequentially connected to form a rectangular frame structure.

[0030] Mesh 200 covers the bottom surface of mesh frame 100, and the edges of mesh 200 are connected to mesh frame 100. Protective sticker 300 covers the connection between mesh 200 and mesh frame 100.

[0031] The first pad 400 includes a first base plate 410, which covers the bottom surface of the protective sticker 300 below the first support frame 110; the second pad 500 includes a second base plate 510, which covers the bottom surface of the protective sticker 300 below the second support frame 120.

[0032] The MLCC printing screen described in this embodiment connects the edge of the mesh 200 to the bottom surface of the frame 100. A protective sticker 300 covers the connection between the mesh 200 and the frame 100. The protective sticker 300 protects the connection stability between the mesh 200 and the frame 100 and improves the flatness of the connection. When the MLCC printing screen is installed on a printing press, the first support frame 110 and the second support frame 120 of the frame 100 are supported by the printing press's support plate. To prevent wear between the protective sticker 300 of the MLCC printing screen and the printing press's support plate, a first pad 400 is installed on the first support frame 110 of the frame 100, and a second pad 500 is installed on the second support frame 120.

[0033] The MLCC printing screen described in this application embodiment, by installing a first pad 400 on the first support frame 110, so that the first base plate 410 of the first pad 400 covers the protective sticker 300 on the bottom surface of the first support frame 110, and installing a second pad 500 on the second support frame 120, so that the second base plate 510 of the second pad 500 covers the protective sticker 300 on the second support frame 120, avoids the protective sticker 300 on the bottom surface of the first support frame 110 and the bottom surface of the second support frame 120 from directly contacting the carrier plate of the printing machine and causing wear, thereby avoiding the fragments of the worn protective sticker 300 falling onto the film and causing contamination and scrap, has the advantages of high production quality stability and low scrap rate.

[0034] Combination Figure 4 The diagram shows an exploded view of an MLCC printing screen according to one embodiment of this application. In some embodiments, the first pad 400 further includes two first side plates 420 connected to the first base plate 410, and the first side plates 420 cover both sides of the first support frame 110 along its length. The second pad 500 further includes two second side plates 520 connected to the second base plate 510, and the second side plates 520 cover both sides of the second support frame 120 along its length.

[0035] In this embodiment, by connecting first side plates 420 to both sides of the first base plate 410 along its length, the first side plates 420 cover both ends of the first support frame 110 along its length, preventing wear on the protective stickers 300 attached to both sides of the first support frame 110 along its length. Similarly, by connecting second side plates 520 to both sides of the second base plate 510 along its length, the second side plates 520 cover both ends of the second support frame 120 along its length, preventing wear on the protective stickers 300 attached to both sides of the second support frame 120 along its length. This further improves the protection range of the first pad 400 and the second pad 500, and enhances the reliability of the first pad 400 and the second pad 500.

[0036] In an optional embodiment, such as Figure 2 As shown, the first side plate 420 is fixedly connected to both sides of the first support frame 110; the second side plate 520 is fixedly connected to both sides of the second support frame 120.

[0037] In this embodiment, the first pad 400 can be fixedly connected to the first support frame 110 via the first side plate 420, facilitating connection between the first pad 400 and the first support frame 110 during installation. Similarly, second side plates 520 are connected to both sides of the second base plate 510 along its length, facilitating connection between the second pad 500 and the second support frame 120 during installation, thus providing the advantage of easy installation. In other embodiments, the first pad 400 can be fixedly connected to the first support frame 110 at other locations, and the second pad 500 can be fixedly connected to the second support frame 120 at other locations; this application is not limited to these embodiments.

[0038] In an optional embodiment, such as Figures 3 to 6 As shown, the first side plate 420 is provided with a first connecting hole 420A, and the two sides of the first support frame 110 are provided with first threaded holes 110A corresponding to the first connecting hole 420A. The second side plate 520 is provided with a second connecting hole 520A, and the two sides of the second support frame 120 are provided with second threaded holes 120A corresponding to the second connecting hole 520A.

[0039] Specifically, such as Figure 2 and Figure 6 As shown, the first fastener 440 is connected to the first threaded hole 110A of the first support frame 110 through the first connecting hole 420A, so that the first pad 400 and the first support frame 110 are fixedly connected; the second fastener 540 is connected to the second threaded hole 120A of the second support frame 120 through the second connecting hole 520A, so that the second pad 500 and the second support frame 120 are fixedly connected.

[0040] In this embodiment, by providing corresponding first connecting holes 420A and first threaded holes 110A, the first fastener 440 passes through the first connecting hole 420A and connects to the first threaded hole 110A, thereby conveniently fixing the first side plate 420 to the side of the first support frame 110. Similarly, by providing corresponding second connecting holes 520A and second threaded holes 120A, the second fastener 540 passes through the second connecting hole 520A and connects to the second threaded hole 120A, thereby conveniently fixing the second side plate 520 to the side of the second support frame 120. The installation of the first pad 400 via the first fastener 440 and the second pad 500 via the second fastener 540 has the advantages of convenient installation and high connection stability. In other embodiments, the first pad 400 and the second pad 500 can also be connected to the mesh frame 100 by adhesive, clamping, or other methods; this application is not limited to these methods.

[0041] In an exemplary embodiment, both the first fastener 440 and the second fastener 540 are hand-tightening screws. Hand-tightening screws allow the first pad 400 and the second pad 500 to be installed onto the mesh frame 100 without the need for tools, which has the advantage of convenient installation.

[0042] In an optional embodiment, such as Figure 5 and Figure 6 As shown, both the first connecting hole 420A and the second connecting hole 520A are waist-shaped holes extending in the vertical direction.

[0043] This embodiment sets the first connecting hole 420A and the second connecting hole 520A as oblong holes, thereby allowing the relative position of the first pad 400 and the first support frame 110 in the vertical direction to be adjusted during installation, so that the first base plate 410 fits against the bottom surface of the first support frame 110. Similarly, the relative position of the second pad 500 and the second support frame 120 in the vertical direction can be adjusted during installation, so that the second base plate 510 fits against the bottom surface of the second support frame 120. This avoids deviations in the assembly accuracy of the first pad 400 and the second pad 500 due to machining accuracy issues with the first connecting hole 420A and the second connecting hole 520A, thus preventing horizontal tilting when the MLCC printing screen is installed on the carrier plate. This embodiment has the advantages of high assembly accuracy and high reliability.

[0044] In an optional embodiment, such as Figure 5 and Figure 6As shown, the first support frame 110 has first clearance mounting positions 110B on both sides along its length. When the first side plate 420 is installed on both sides of the first support frame 110, the two sides along its length are flush with the outer edges of the first connecting frame 130 and the second connecting frame 140, respectively. The second support frame 120 has second clearance mounting positions 120B on both sides along its length. When the second side plate 520 is installed on both sides of the second support frame 120, the two sides along its length are flush with the outer edges of the first connecting frame 130 and the second connecting frame 140, respectively.

[0045] In this embodiment, by setting a first clearance mounting position 110B, when the first side plate 420 is installed on the first support frame 110, the first side plate 420 is embedded in the first clearance mounting position 110B, making the first side plate 420 flush with the outer edges of the first connecting frame 130 and the second connecting frame 140. Similarly, the second side plate 520 is embedded in the second clearance mounting position 120B of the second support frame 120, making the second side plate 520 flush with the outer edges of the first connecting frame 130 and the second connecting frame 140. This makes the overall width of the MLCC printing screen consistent with the overall width of a traditional MLCC printing screen, avoiding the inability of the MLCC printing screen to adapt to the mounting position of the printing press.

[0046] In an optional embodiment, such as Figures 3 to 6 As shown, the first pad 400 also includes a third side plate 430 connected to the first base plate 410. The third side plate 430 is fixedly connected to the first base plate 410 and the first side plate 420, and covers the outer side of the first support frame 110. The second pad 500 also includes a fourth side plate 530 connected to the second base plate 510. The fourth side plate 530 is fixedly connected to the second base plate 510 and the second side plate 520, and covers the outer side of the second support frame 120.

[0047] This embodiment also provides a third side plate 430 to cover the outer side of the first support frame 110 to prevent wear on the protective sticker 300 attached to the outer side of the first support frame 110, and a fourth side plate 530 to cover the outer side of the second support frame 120 to prevent wear on the protective sticker 300 attached to the outer side of the second support frame 120, thereby further improving the protection range of the first pad 400 and the second pad 500 and improving the reliability of the first pad 400 and the second pad 500.

[0048] In an optional embodiment, the outer side of the first support frame 110 is provided with a third clearance mounting position, and the third side plate 430 is embedded in the third clearance mounting position. The outer side of the second support frame 120 is provided with a fourth clearance mounting position, and the fourth side plate 530 is embedded in the fourth clearance mounting position.

[0049] In this embodiment, the third side plate 430 is embedded in the third clearance mounting position, and the fourth side plate 530 is embedded in the fourth clearance mounting position, so that the overall length of the MLCC printing screen is consistent with the overall length of the traditional MLCC printing screen, thus avoiding the inability of the MLCC printing screen to fit the mounting position of the printing press.

[0050] In an optional embodiment, the edges of the screen mesh 200 are glued to the frame 100, making the connection stronger and tighter, providing stable and durable tension support for the screen mesh 200. Furthermore, the glue connection can evenly distribute the stress on the edges of the screen mesh 200, reducing the risk of tearing and ensuring the overall flatness and printing stability of the MLCC printing screen, meeting the high-precision production requirements of MLCCs.

[0051] In an optional embodiment, the protective sticker 300 is an aluminum foil sticker. The rigidity and ductility of the aluminum foil sticker provide strong physical protection for the mesh 200 and the frame 100, and the aluminum foil sticker will not damage the surface of the frame 100 when removed, thus extending the service life of the MLCC printing screen.

[0052] In an optional embodiment, such as Figure 3 As shown, the first base plate 410, the first side plate 420, and the third side plate 430 are integrally formed. The second base plate 510, the second side plate 520, and the fourth side plate 530 are also integrally formed.

[0053] In this embodiment, the first pad 400 and the second pad 500 are manufactured as a single piece, which avoids stress concentration problems caused by assembly gaps in spliced ​​structures, reduces positioning deviations caused by assembly errors, and ensures the overall strength and accuracy of the first pad 400 and the second pad 500. At the same time, the single-piece structure eliminates the splicing and assembly process, facilitates standardized production, and reduces the production time and cost of the first pad 400 and the second pad 500.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An MLCC printing screen, characterized in that, include: The frame (100) has a rectangular frame structure and includes a first support frame (110) and a second support frame (120) disposed opposite to each other. A mesh (200) covers the bottom surface of the mesh frame (100), and the edge of the mesh (200) is connected to the mesh frame (100). A protective sticker (300) is used to cover the connection between the mesh (200) and the frame (100); as well as A first pad (400) and a second pad (500), the first pad (400) including a first base plate (410) covering the bottom surface of the protective sticker (300) below the first support frame (110); the second pad (500) including a second base plate (510) covering the bottom surface of the protective sticker (300) below the second support frame (120).

2. The MLCC printing screen according to claim 1, characterized in that: The first pad (400) also includes two first side plates (420) connected to the first base plate (410), and the first side plates (420) cover both sides of the first support frame (110) in the longitudinal direction; The second pad (500) also includes two second side plates (520) connected to the second base plate (510), the second side plates (520) covering both sides of the second support frame (120) in the longitudinal direction.

3. The MLCC printing screen according to claim 2, characterized in that: The first side plate (420) is fixedly connected to both sides of the first support frame (110); the second side plate (520) is fixedly connected to both sides of the second support frame (120).

4. The MLCC printing screen according to claim 3, characterized in that: The first side plate (420) is provided with a first connecting hole (420A), and the first support frame (110) is provided with a first threaded hole (110A) on both sides corresponding to the first connecting hole (420A); the second side plate (520) is provided with a second connecting hole (520A), and the second support frame (120) is provided with a second threaded hole (120A) on both sides corresponding to the second connecting hole (520A).

5. The MLCC printing screen according to claim 4, characterized in that: Both the first connecting hole (420A) and the second connecting hole (520A) are waist-shaped holes extending in the vertical direction.

6. The MLCC printing screen according to claim 2, characterized in that: The frame (100) further includes a first connecting frame (130) and a second connecting frame (140), wherein the first supporting frame (110), the first connecting frame (130), the second supporting frame (120) and the second connecting frame (140) are connected in sequence to form the rectangular frame structure; The first support frame (110) has first clearance mounting positions (110B) on both sides of its length direction. When the first side plate (420) is installed on both sides of the first support frame (110), the two sides of the first support frame (110) in its length direction are flush with the outer edges of the first connecting frame (130) and the second connecting frame (140), respectively. The second support frame (120) has second clearance mounting positions (120B) on both sides of its length direction. When the second side plate (520) is installed on both sides of the second support frame (120), the two sides of the second support frame (120) in its length direction are flush with the outer edges of the first connecting frame (130) and the second connecting frame (140), respectively.

7. The MLCC printing screen according to claim 2, characterized in that: The first pad (400) also includes a third side plate (430) connected to the first base plate (410), the third side plate (430) being fixedly connected to the first base plate (410) and the first side plate (420), and the third side plate (430) covering the outer side of the first support frame (110); The second pad (500) also includes a fourth side plate (530) connected to the second base plate (510), the fourth side plate (530) being fixedly connected to the second base plate (510) and the second side plate (520), and the fourth side plate (530) covering the outer side of the second support frame (120).

8. The MLCC printing screen according to claim 1, characterized in that: The edge of the mesh (200) is attached to the mesh frame (100) by glue.

9. The MLCC printing screen according to claim 1, characterized in that: The protective sticker (300) is an aluminum foil sticker.

10. The MLCC printing screen according to claim 7, characterized in that: The first base plate (410), the first side plate (420), and the third side plate (430) are integrally formed; The second base plate (510), the second side plate (520) and the fourth side plate (530) are integrally formed.

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