Tool for preventing ultra-thin laminated membrane printing from sticking to net

Abstract

The utility model discloses a tool for preventing ultra-thin laminated film printing from sticking to a net, which relates to the field of printing devices of capacitors and comprises a first pressing piece and a second pressing piece which are both arranged on a printing table and are respectively positioned on two sides of a dielectric film belt. The first pressing piece and the second pressing piece are arranged to jointly press the electrode diaphragm on the dielectric film belt in the radial direction, and the dielectric film belt can axially move between the first pressing piece and the second pressing piece. According to the utility model, the at least two pressing pieces are arranged on the printing table, and the electrode diaphragm on the dielectric film belt is pressed, so that the problem that the quality of the electrode diaphragm is influenced due to the fact that the electrode diaphragm for electrode printing is easily adhered to a silk screen is avoided.

Description

Technical Field

[0001] This utility model relates to the field of capacitor printing apparatus, specifically to a printing and gluing fixture for anti-ultra-thin film. Background Technology

[0002] The continuous development of electronic information technology and the steady advancement of my country's aerospace industry have led to a surge in sales of high-reliability electronic products, which in turn has driven the growth of the capacitor industry. To meet market demand, there is an increasing need for high-quality, thin-layer and multilayer ceramic capacitors. The quality of electrode printing plays a crucial role in the capacitance, loss tangent, lifespan, and other performance characteristics of multilayer ceramic capacitors. While the printing machines currently used are among the most advanced on the market, the printing process still experiences issues such as the re-adhesion of ultra-thin films, resulting in problems with the quality of the electrode films.

[0003] In view of the above, this application is hereby submitted. Utility Model Content

[0004] The purpose of this invention is to provide a fixture for preventing ultra-thin film printing from sticking to the screen. By installing at least two clamping parts on the printing table, the electrode film on the dielectric film tape is pressed tightly, thereby solving the problem in the prior art that the electrode film printed on the electrode easily sticks back to the screen, affecting the quality of the electrode film.

[0005] This utility model embodiment is achieved through the following technical solution: This utility model embodiment provides a printing and bonding fixture for anti-ultra-thin film, including a first clamping member and a second clamping member. The first clamping member and the second clamping member are both disposed on the printing table and are respectively located on both sides of the dielectric film strip. The first clamping member and the second clamping member are configured to jointly perform radial clamping on the electrode film on the dielectric film strip. The dielectric film strip can move axially relative to the first clamping member and the second clamping member.

[0006] Optionally, the first clamping member and the second clamping member are arranged symmetrically along the axial direction of the medium film belt.

[0007] Optionally, the first clamping member includes a support member, a connecting rod, and a roller. The support member is provided with a through hole, the connecting rod passes through the through hole, one end of the connecting rod is connected to the roller, the roller is located on the outside of the support member, and is configured to rotate during the axial movement of the medium film belt after radially clamping it.

[0008] Optionally, the support member is a cuboid structure, and the through-hole member includes two through holes on opposite side walls of the support member. The connecting rod passes through both through holes simultaneously. Both through holes are longitudinal strip structures, and the connecting rod can be adjusted vertically within the through holes.

[0009] Optionally, a roller is disposed on the outside of one of the through holes, and a nut is disposed on the outside of the other through hole. The nut is threadedly connected to the other end of the connecting rod. The nut is configured to limit the vertical height of the connecting rod, and the roller is in a rolling connection with the connecting rod.

[0010] Optionally, a magnetic element is provided on the bottom surface of the support member, and the magnetic element is configured to be magnetically connected to the printing table.

[0011] Optionally, the magnetic component is provided with several limiting grooves, which are configured to cooperate with the limiting protrusions on the printing table.

[0012] Optionally, the connecting rod passes through the roller and protrudes outward from the center of the roller.

[0013] Optionally, the roller is cylindrical, the connecting rod is cylindrical, and the diameter of the roller is more than twice the diameter of the connecting rod.

[0014] Optionally, the outer surface of the roller includes an inner ring and an outer ring, the inner ring being recessed inward relative to the outer ring, a connecting rod passing through the inner ring, and the outer end face of the connecting rod being flush with the outer end face of the outer ring.

[0015] Compared with the prior art, the embodiments of this utility model have the following advantages and beneficial effects:

[0016] 1. The anti-ultra-thin film printing screen-adhesion fixture provided in this embodiment of the utility model, by installing a first clamping member and a second clamping member on the printing table, radially presses the electrode films on the dielectric film tape from both sides. During the printing process, the dielectric film tape, driven by the carrier belt, passes through the printing table, and the printing equipment continuously screen prints multiple electrode films onto the dielectric film tape. The first and second clamping members apply radial pressure to the electrode films to prevent them from sticking back to the screen. At the same time, the film tape moves axially relative to the clamping members, ensuring that the printing paste can be printed evenly and continuously onto the film tape. This fixture can significantly improve the quality of electrode printing, ensuring the performance indicators of capacitors such as capacitance, loss tangent, and long lifespan. It can also reduce the distance between blank films between electrode films, thereby reducing raw material waste and improving production efficiency.

[0017] 2. The number of clamping components in this utility model embodiment can be set to multiple, which can be set according to actual needs. Generally speaking, the more clamping components there are, the greater the radial clamping strength on the electrode diaphragm. This utility model embodiment ensures that the electrode diaphragm is subjected to uniform pressure in the printing area by symmetrically arranging the first clamping component and the second clamping component along the axial direction of the dielectric film belt, thereby further ensuring the consistency of printing quality.

[0018] 3. In this embodiment of the utility model, by specifically setting the structure of a single clamping member, the rollers of the first and second clamping members radially clamp the electrode diaphragm. The rollers allow the dielectric film to rotate smoothly during movement, reducing friction and preventing the electrode diaphragm from sticking back. The through-hole member is set as a longitudinal strip structure, so that the connecting rod can be adjusted in the vertical direction to adapt to dielectric film strips and electrode diaphragms of different thicknesses, ensuring the appropriate application of clamping force.

[0019] In general, the anti-ultra-thin film printing screen sticking fixture provided by the embodiments of this utility model, by setting at least two clamping parts installed on the printing table, presses the electrode film tightly, so as to avoid the electrode film being easily stuck back onto the screen and affecting the quality of the electrode film. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A top-view schematic diagram illustrating the working principle of the anti-ultra-thin film printing and screen bonding fixture provided in this embodiment of the utility model;

[0022] Figure 2 A first-view structural schematic diagram of the first or second clamping member provided in an embodiment of this utility model;

[0023] Figure 3 A second-view structural schematic diagram of the first or second clamping member provided in an embodiment of this utility model;

[0024] Figure 4 A third-view structural schematic diagram of the first or second clamping member provided in the embodiments of this utility model.

[0025] The attached diagram shows the markings and corresponding component names:

[0026] 1-First clamping component, 2-Second clamping component, 3-Printing table, 4-Dielectric film belt, 5-Support component, 6-Connecting rod, 7-Roller, 8-Through hole, 9-Nut, 10-Magnetic suction component, 11-Limiting groove, 12-Inner ring, 13-Outer ring, 14-Electrode diaphragm, 15-Carrier belt. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "first", "second", "third", etc. are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0031] Example

[0032] like Figure 1 As shown, this embodiment of the invention provides a screen printing fixture for anti-ultra-thin film, including a first clamping member 1 and a second clamping member 2. Both the first clamping member 1 and the second clamping member 2 are disposed on a printing table 3 and located on opposite sides of a dielectric film belt 4. The first clamping member 1 and the second clamping member 2 are configured to jointly apply radial pressure to the electrode films 14 on the dielectric film belt 4. The dielectric film belt 4 is axially movable relative to the first clamping member 1 and the second clamping member 2. Specifically, the first clamping member 1 and the second clamping member 2 are fixed to the printing table 3 to ensure that they can stably apply pressure when the dielectric film belt 4 passes through. During printing, the electrode films 14 are located between the first clamping member 1 and the second clamping member 2. The clamping members apply radial pressure to the electrode films 14 while allowing the dielectric film belt 4 to move axially relative to them without affecting its continuous movement and the printing process. During the printing process, the dielectric film belt 4 passes through the printing table 3 under the drive of the carrier belt 15, and the printing equipment performs continuous screen printing on the film belt to print multiple electrode films 14. The tooling of this utility model embodiment prevents the diaphragm from sticking back, ensures the clarity and integrity of the printed pattern, reduces printing defects, and improves the quality of the electrode diaphragm 14.

[0033] Meanwhile, in this embodiment of the utility model, the first clamping member 1 and the second clamping member 2 can radially clamp the printed electrode film 14, so that it forms a certain height difference with the printing platform, thereby preventing the film from sticking back to the screen. Due to the action of the clamping member, the original 120mm large gap between the two electrode films 14 can be adjusted to a 20mm small gap, saving 100mm of film per electrode film 14, reducing the waste of raw materials, and also reducing the distance of film belt operation, thus improving printing efficiency. By adjusting the gap of the electrode films 14 from 120mm to 20mm, 100mm of film can be saved per electrode film 14, significantly reducing the waste of raw materials and improving material utilization.

[0034] It should be noted that in this embodiment of the present invention, the clamping members are not limited to two; three, four, etc., can also be provided, as long as they can ensure that the electrode films 14 on the dielectric film belt 4, which are being printed or have just finished printing, are radially pressed, so that the electrode films 14 and the printing platform form a certain height difference, thus preventing the electrode films 14 from sticking back to the screen. As a preferred embodiment of the present invention, the first clamping member 1 and the second clamping member 2 are symmetrically arranged along the axial direction of the dielectric film belt 4, ensuring that the electrode films 14 on the dielectric film belt 4 are subjected to uniform pressure in the printing area, thereby ensuring the consistency of printing quality. The axially symmetrical structure ensures that the electrode films 14 are subjected to balanced clamping force on both sides, avoiding deformation of the electrode films 14 or uneven printing caused by uneven pressure.

[0035] For example, such as Figure 2-4 As shown, the first clamping member 1 includes a support member 5, a connecting rod 6, and a roller 7. The support member 5 is provided with a through hole 8, and the connecting rod 6 passes through the through hole 8. One end of the connecting rod 6 is connected to the roller 7. The roller 7 is located on the outside of the support member 5 and is configured to rotate during the axial movement of the dielectric membrane belt 4 after radially clamping it. Specifically, the support member 5 provides a stable structural foundation to ensure the correct installation and positioning of the connecting rod 6 and the roller 7. The connecting rod 6 connects the support member 5 and the roller 7, transmitting the supporting force of the support member 5 to the roller 7, so that the roller 7 can apply radial pressure to the electrode diaphragm 14 on the dielectric membrane belt 4. For example, the roller 7 can be positioned above the dielectric membrane belt 4 and in contact with the upper surface of the dielectric membrane belt 4. When the dielectric membrane belt 4 moves, it can drive the roller 7 to rotate. At the same time, radially, the rollers 7 on both sides clamp the motor diaphragm.

[0036] This structure significantly reduces friction between the film strip and the clamping element, preventing damage to the film strip due to excessive friction. The rotation of roller 7 ensures that the motor diaphragm can pass smoothly under clamping conditions for printing the next electrode diaphragm 14, avoiding film strip misalignment or uneven printing caused by friction, thereby improving the clarity and consistency of the printed pattern. Simultaneously, during continuous screen printing, the rotation of roller 7 allows the dielectric film strip 4 to continuously pass through the printing area, ensuring that the printing paste is evenly and continuously printed onto the dielectric film strip 4, improving printing efficiency.

[0037] It should be noted that the structure of the support member 5 is not limited here, and can be set according to actual needs, as long as it can ensure stable connection with the printing table 3 and stable transmission of clamping force to the roller 7. For example, the support member 5 can be cylindrical, prismatic, etc. As a preferred embodiment of this utility model, the support member 5 has a cuboid structure, and the through holes 8 include two through holes 8 on opposite side walls of the support member 5. The connecting rod 6 passes through both through holes 8. Both through holes 8 are longitudinal strip structures, and the vertical height of the connecting rod 6 can be adjusted within the through holes 8.

[0038] In this embodiment of the invention, the through-hole component 8 includes two through-holes 8 on opposite side walls of the support component 5. Both through-holes 8 are longitudinal elongated structures, allowing the connecting rod 6 to be adjusted vertically. The connecting rod 6 passes through both through-holes 8, connecting the support component 5 and the roller 7. By adjusting the vertical height within the through-holes 8, it can accommodate dielectric film strips 4 and electrode films 14 of different thicknesses, ensuring appropriate application of clamping force. In actual production, the thickness of the dielectric film strip 4 may vary. By adjusting the height of the connecting rod 6, it can ensure that the clamping component applies appropriate pressure to the electrode film 14, avoiding printing quality problems caused by excessive or insufficient pressure. The cuboid structure of the support component 5 can withstand greater pressure, ensuring that the clamping component does not deform or shift when applying pressure to the dielectric film strip 4. It should be noted that the shape of the through-holes 8 is not limited here; it can be rectangular, or a rectangle with symmetrical semicircles on both sides, as long as it satisfies the purpose of adjustability and stable positioning after adjustment.

[0039] To improve the limiting stability of the connecting rod 6 after vertical adjustment, a roller 7 can be positioned outside one of the through holes 8, and a nut 9 can be positioned outside the other through hole 8. The nut 9 is threadedly connected to the other end of the connecting rod 6, and the nut 9 is used to limit the vertical height of the connecting rod 6. The roller 7 is in a rolling connection with the connecting rod 6. Specifically, the roller 7 is positioned outside one of the through holes 8 and is in a rolling connection with the connecting rod 6. After radially pressing the electrode diaphragm 14, the roller 7 can rotate during the axial movement of the dielectric film 4, reducing friction. The nut 9 is positioned outside the other through hole 8 and is threadedly connected to the other end of the connecting rod 6. By adjusting the nut 9, the height of the connecting rod 6 can be precisely controlled, thereby ensuring that the clamping element applies appropriate pressure to the dielectric film 4.

[0040] During installation, firstly, the connecting rod 6 is passed through the two longitudinal elongated through holes 8 on the support member 5, ensuring that the connecting rod 6 can move freely within the through holes 8. At this time, one end of the connecting rod 6 is connected to the roller 7, and the other end is threadedly connected to the nut 9. Use a tool (such as a wrench) to loosen the nut 9 threadedly connected to the connecting rod 6, so that it no longer restricts the movement of the connecting rod 6. Depending on the thickness of the dielectric membrane 4, move the connecting rod 6 up or down to reach the appropriate position. During the movement, the connecting rod 6 slides within the through holes 8. The elongated design of the through holes 8 allows the connecting rod 6 to be adjusted vertically within a certain range. When the connecting rod 6 moves to the appropriate position, the roller 7 is also adjusted to the corresponding height. Ensure that the roller 7 can apply appropriate radial pressure to the electrode diaphragm 14, and can rotate smoothly when the membrane moves axially. After the connecting rod 6 is adjusted to the appropriate position, retighten the nut 9 to ensure a tight threaded connection with the connecting rod 6. The tightening effect of nut 9 restricts the vertical movement of connecting rod 6, ensuring that the clamping element remains stable during operation and applies constant pressure to electrode diaphragm 14.

[0041] In a preferred embodiment of this utility model, a magnetic suction element 10 is provided on the bottom surface of the support member 5, and the magnetic suction element 10 is configured to magnetically connect with the printing table 3. Specifically, the magnetic suction element 10 can firmly fix the support member 5 on the printing table 3. This fixing method is simple and quick, without the need for complex mechanical connections, and is convenient for installation and disassembly. At the same time, it allows the position of the support member 5 on the printing table 3 to be adjusted as needed. For example, the position of the clamping element can be reasonably arranged according to the width of the medium film belt 4 and the layout of the printing area to achieve the best printing effect. If it is necessary to disassemble the support member 5, the magnetic suction element 10 can be gently pried off the printing table 3 with a tool (such as a screwdriver) to facilitate maintenance and replacement. More preferably, the magnetic suction element 10 is provided with a plurality of limiting grooves 11, which are configured to cooperate with the limiting protrusions on the printing table 3. This structure further enhances the positioning accuracy of the support member 5 on the printing table 3. The cooperation between the limiting grooves 11 and the limiting protrusions allows the support member 5 to be quickly aligned with the predetermined position during installation, avoiding printing quality problems caused by positional deviations. The engagement of the limiting groove 11 and the limiting protrusion further enhances the stability of the support member 5. This dual fixing method (magnetic attraction and limiting engagement) makes the support member 5 more secure during the printing process, effectively resisting the influence of vibration and other external forces, and ensuring the uniformity and consistency of the pressure applied by the clamping member to the dielectric film 4. Of course, in other embodiments, the connection method is not limited to magnetic attraction; it can be a locking mechanism, threaded connection, or other connection methods, as long as sufficient connection stability can be achieved.

[0042] Preferably, the connecting rod 6 passes through the roller 7 and protrudes outward from the center of the roller 7. Exemplarily, the roller 7 is cylindrical, the connecting rod 6 is cylindrical, and the diameter of the roller 7 is greater than twice the diameter of the connecting rod 6. More preferably, the outer surface of the roller 7 includes an inner ring 12 and an outer ring 13, the inner ring 12 being concave inward relative to the outer ring 13, the connecting rod 6 passing through the inner ring 12, and the outer end face of the connecting rod 6 being flush with the outer end face of the outer ring 13. Specifically, the diameter of the roller 7 being greater than twice the diameter of the connecting rod 6 provides a larger contact area, better supporting the electrode diaphragm 14 and improving the stability of the clamping element. Simultaneously, the cylindrical structure of the roller 7 helps reduce friction generated during relative movement with the dielectric film belt 4.

[0043] The inner ring 12 of roller 7 allows the connecting rod 6 to pass through it, and the outer end face of the connecting rod 6 is flush with the outer end face of the outer ring 13 of roller 7, reducing the possibility of dangerous accidents caused by the outward protrusion of the connecting rod 6. Due to the large diameter of roller 7 and the inward concavity of the inner ring 12 relative to the outer ring 13, roller 7 can more flexibly adapt to media film belts 4 of different widths. The connecting rod 6 passing through the inner ring 12 of roller 7 improves the connection stability, clamping stability, and rotational stability of roller 7, thereby improving the reliability and service life of the tooling.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model. It should be noted that the structures or components illustrated in the accompanying drawings are not necessarily drawn to scale, and descriptions of well-known components, processing techniques, and processes are omitted to avoid unnecessarily limiting the utility model.

Claims

1. A tooling for printing and bonding screens to prevent ultra-thin film coatings, characterized in that, It includes a first clamping member (1) and a second clamping member (2). The first clamping member (1) and the second clamping member (2) are both disposed on the printing table (3) and are respectively located on both sides of the dielectric film strip (4). The first clamping member (1) and the second clamping member (2) are configured to jointly perform radial clamping on the electrode film on the dielectric film strip (4). The dielectric film strip (4) can move axially relative to the first clamping member (1) and the second clamping member (2).

2. The anti-ultra-thin film printing screen adhesive fixture according to claim 1, characterized in that, The first clamping member (1) and the second clamping member (2) are arranged symmetrically along the axial direction of the medium film belt (4).

3. The anti-ultra-thin film printing screen adhesive fixture according to claim 2, characterized in that, The first clamping member (1) includes a support member (5), a connecting rod (6) and a roller (7). The support member (5) is provided with a through hole (8). The connecting rod (6) passes through the through hole (8). One end of the connecting rod (6) is connected to the roller (7). The roller (7) is located on the outside of the support member (5) and is configured to rotate during the axial movement of the medium film belt (4) after radially clamping it.

4. The anti-ultra-thin film printing screen adhesive fixture according to claim 3, characterized in that, The support member (5) is a cuboid structure. The through hole (8) includes two through holes (8) on opposite side walls of the support member (5). The connecting rod (6) passes through both through holes (8) simultaneously. Both through holes (8) are longitudinal strip structures. The connecting rod (6) can adjust its vertical height within the through holes (8).

5. The anti-ultra-thin film printing screen adhesive fixture according to claim 4, characterized in that, The roller (7) is disposed on the outside of one of the through holes (8), and a nut (9) is disposed on the outside of the other through hole (8). The nut (9) is threadedly connected to the other end of the connecting rod (6). The nut (9) is configured to limit the vertical height of the connecting rod (6). The roller (7) is in rolling connection with the connecting rod (6).

6. The anti-ultra-thin film printing screen adhesive fixture according to claim 4, characterized in that, A magnetic suction element (10) is provided on the bottom surface of the support member (5), and the magnetic suction element (10) is configured to be magnetically connected to the printing table (3).

7. The anti-ultra-thin film printing screen adhesive fixture according to claim 6, characterized in that, The magnetic suction component (10) is provided with a plurality of limiting grooves (11), which are configured to cooperate with the limiting protrusions on the printing table (3).

8. The anti-ultra-thin film printing screen adhesive fixture according to claim 5, characterized in that, The connecting rod (6) passes through the roller (7) and protrudes outward from the center of the roller (7).

9. The anti-ultra-thin film printing screen adhesive fixture according to claim 8, characterized in that, The roller (7) is cylindrical, the connecting rod (6) is cylindrical, and the diameter of the roller (7) is more than twice the diameter of the connecting rod (6).

10. The anti-ultra-thin film printing screen adhesive fixture according to claim 9, characterized in that, The outer surface of the roller (7) includes an inner ring (12) and an outer ring (13). The inner ring (12) is recessed inward relative to the outer ring (13). The connecting rod (6) passes through the inner ring (12). The outer end face of the connecting rod (6) is flush with the outer end face of the outer ring (13).

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