Screen printing machine
By incorporating ventilation vents and transparent partitions into the screen printing machine, the dust pollution problem was solved, and the quality and production efficiency of MLCC products were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG VIIYONG ELECTRONIC TECH CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-12
AI Technical Summary
During the screen printing process of MLCCs, the internal structural movement of the printing mechanism can easily generate fine dust, and the wet film is prone to adhering to foreign objects, affecting product quality.
Design a screen printing machine comprising a housing, an exhaust vent, a printing mechanism, a pattern detection mechanism, and a vacuum device. Dust is extracted through the exhaust vent, and a dustproof component, such as a transparent partition, is installed on the pattern detection mechanism to prevent dust from falling. Simultaneously, front and rear suction rollers are used to adsorb dust.
It effectively prevents dust from contaminating the wet film, improves the quality of printed films and final MLCC products, and simplifies the cleaning and replacement of transparent separators.
Smart Images
Figure CN224224730U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of MLCC printing, and in particular to a screen printing machine. Background Technology
[0002] MLCC (Multi-layer Ceramic Capacitor), also known as multilayer capacitor or laminated capacitor, is the most widely used type of capacitor. MLCC is formed by stacking ceramic dielectric films with printed electrodes (internal electrodes) in an alternating pattern, sintering them at high temperature to form a ceramic block, and then sealing the ends of the ceramic block with metal layers (external electrodes).
[0003] The internal electrode printing process of MLCC is usually screen printing, which involves printing the internal electrode paste onto the ceramic film through a printing screen, and then drying it to obtain a clear and complete dielectric film.
[0004] During the screen printing process of MLCCs, the internal movement of the printing mechanism can easily generate fine dust inside the printing press, which may fall onto the printed film at any time. Furthermore, the film remains moist after printing, making it even more susceptible to foreign matter adhering to the product. Utility Model Content
[0005] Therefore, it is necessary to provide a screen printing machine that can solve the above-mentioned technical problems.
[0006] The above-mentioned objective of this application is achieved through the following technical solution:
[0007] This application provides a screen printing machine, comprising:
[0008] The outer casing has an exhaust vent on it;
[0009] Printing facilities;
[0010] A pattern inspection mechanism is located behind the workstation of the printing mechanism. The pattern inspection mechanism includes an inspection area for the film to pass through, and a dustproof component is provided above the inspection area to prevent dust from falling.
[0011] A vacuuming device includes a vacuum pump and an air duct, wherein the vacuum pump is connected to the exhaust port via the air duct.
[0012] In one embodiment, the dustproof component is a transparent partition, and a graphic detection device is also provided above the detection area, with the transparent partition positioned between the detection area and the graphic detection device.
[0013] In one embodiment, the graphic detection mechanism further includes a mounting frame, on which the graphic detection device is disposed;
[0014] The transparent partition is mounted on the mounting frame via a connecting assembly.
[0015] In one embodiment, the mounting frame includes a front mounting frame and a rear mounting frame arranged sequentially along the forward direction of the diaphragm, the front mounting frame and the rear mounting frame being arranged across the left and right sides of the diaphragm respectively, and the mounting frame further includes a connecting beam spanning between the front mounting frame and the rear mounting frame, with the graphic detection device disposed at the bottom of the connecting beam;
[0016] The connecting assembly includes multiple connectors, which are respectively disposed on the left and right sides of the front mounting bracket and the left and right sides of the rear mounting bracket; the connectors are U-shaped, with their upper ends fixed to the bottom of the front mounting bracket or the rear mounting bracket by fasteners, and their lower ends used to support the transparent partition.
[0017] In one embodiment, the detection area of the pattern detection mechanism and the film output area of the printing mechanism are located on the same horizontal plane, and one end of the transparent partition extends above the film output area of the printing mechanism.
[0018] In one embodiment, a drying mechanism is also included, which is disposed after the work station of the pattern detection mechanism and is used to dry the printed pattern on the film.
[0019] The film input area of the drying mechanism and the detection area of the pattern detection mechanism are located on the same horizontal plane, and the other end of the transparent partition extends above the film input area of the drying mechanism.
[0020] In one embodiment, the transparent partition is a glass plate.
[0021] In one embodiment, a front suction roller is also included, which is located in front of the station of the printing mechanism and is used to transport the film.
[0022] The surface of the front suction roller is provided with suction holes, and the interior of the front suction roller is provided with suction channels connected to the suction holes.
[0023] In one embodiment, the device further includes a drying mechanism and a rear suction roller. The drying mechanism is located after the workstation of the pattern detection mechanism, and the rear suction roller is located after the workstation of the drying mechanism. The drying mechanism is used to dry the printed pattern on the film, and the rear suction roller is used to transport the film.
[0024] The surface of the rear suction roller is provided with suction holes, and the interior of the rear suction roller is provided with suction channels connected to the suction holes.
[0025] In one embodiment, a main frame is also included, which is disposed within the housing, and the printing mechanism and the graphic detection mechanism are both disposed on the main frame.
[0026] This application has the following beneficial effects:
[0027] This application integrates the functional components of a screen printing machine into a housing and incorporates a vacuum device to remove dust generated during operation. Furthermore, a dustproof component is installed on the graphic inspection mechanism behind the printing station to prevent dust from falling onto the still-wet film after printing, thus improving the quality of the printed film and the final MLCC product. This application also facilitates the cleaning or replacement of the transparent partition and includes front and rear suction rollers to adsorb dust from the non-printing surface of the film. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of a screen printing machine in an exemplary embodiment;
[0029] Figure 2 This is a schematic diagram of the structure of a graphic detection mechanism in an exemplary embodiment;
[0030] Figure 3 This is a schematic diagram of the structure of a connector in an exemplary embodiment;
[0031] Figure 4 This is a schematic diagram of the installation of a transparent partition in an exemplary embodiment.
[0032] Explanation of icon numbers:
[0033] 100. Screen printing machine; 10. Housing; 11. Exhaust vent; 20. Unwinding mechanism; 31. Front tensioning mechanism; 32. Rear tensioning mechanism; 41. Front suction roller; 42. Rear suction roller; 50. Printing mechanism; 51. Film output area; 60. Pattern detection mechanism; 62. Detection area; 631. Front mounting bracket; 632. Rear mounting bracket; 633. Connecting beam; 64. Pattern detection equipment; 65. Transparent partition; 66. Connector; 70. Drying mechanism; 71. Film input area; 80. Rewinding mechanism; 90. Ceramic film. Detailed Implementation
[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, a detailed description of specific embodiments of this application is provided below. 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.
[0035] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0037] To address the technical problems mentioned in the background section, this application provides a screen printing machine that can be used to print internal electrode patterns on ceramic thin films. For example... Figure 1 As shown, in one embodiment, the screen printing machine 100 includes a housing 10, on which an exhaust port 11 is provided. Preferably, the exhaust port 11 is located at the top center of the housing 10.
[0038] In one embodiment, a main frame (not shown) is provided inside the housing 10. The internal mechanisms of the screen printing machine 100 may be all or partly located on the main frame, or they may be provided with separate mounting frames. In this embodiment, the screen printing machine 100 is also provided with a printing mechanism 50, a pattern detection mechanism 60, and a vacuum device (not shown).
[0039] In this embodiment, both the printing mechanism 50 and the pattern inspection mechanism 60 are mounted on the main frame. The printing mechanism 50 is used to fix the input ceramic diaphragm 90 and print the internal electrode pattern on the ceramic diaphragm 90 by screen printing. The pattern inspection mechanism 60 is located behind the printing mechanism 50 and is used to detect whether there are defects in the internal electrode pattern printed on the surface of the ceramic diaphragm 90 by visual inspection.
[0040] The vacuum device is located outside the housing 10. The vacuum device includes a vacuum pump and an air duct. The vacuum pump is connected to the exhaust port 11 through the air duct and is also connected to the inside of the housing 10. The housing 10 can be designed as a sealed or semi-sealed type. When the vacuum pump is working, it draws air from the housing 10 through the air duct, so that a negative pressure is formed inside the housing 10. The dust generated by the internal mechanism of the screen printing machine 100 inside the housing 10 can be drawn out to the outside through the exhaust port 11 by the air flow generated by the negative pressure.
[0041] After printing, the ceramic diaphragm 90 is still in a moist state, and the air flow caused by the exhaust makes the moist diaphragm more prone to foreign matter adhering to the product. Therefore, in this embodiment, the pattern detection mechanism 60 includes a detection area 62 for the ceramic diaphragm 90 to pass through, and a dustproof component is provided above the detection area 62 to prevent dust from falling.
[0042] In this embodiment, the dustproof component is positioned above the detection area 62 to block dust falling from above it. Therefore, its structure can be adjusted according to the specific structure of the pattern detection mechanism 60. For example, if the pattern detection mechanism 60 also has a pattern detection device 64 above the detection area 62, the dustproof component can be a cover or partition positioned above the pattern detection device 64. It can be installed separately on the main frame or on a mounting frame inside the pattern detection mechanism 60. In other examples, the dustproof component can also be positioned between the pattern detection device 64 and the detection area 62. In this case, it can be fixed to a mounting frame inside the pattern detection mechanism 60, but it needs to avoid the movement trajectory of the pattern detection device 64 when it moves back and forth, or it can be made transparent so as not to affect the detection of the ceramic diaphragm 90 by the pattern detection device 64.
[0043] This application improves the quality of printed films and final MLCC products by housing the functional components of a screen printing machine within a housing and installing a vacuum device to remove dust generated during operation of each component. Furthermore, a dustproof component is installed in the graphic inspection mechanism behind the printing station to prevent dust from falling onto the still-wet film after printing.
[0044] In a preferred embodiment, such as Figure 1 and 2 As shown, the dustproof component is a transparent partition 65, which is disposed between the detection area 62 and the pattern detection device 64. In other words, the transparent partition 65 is disposed between the ceramic diaphragm 90 and the pattern detection device 64, which can prevent dust from falling onto the ceramic diaphragm 90 to the greatest extent possible, while avoiding affecting the detection of the internal electrode pattern printed on the surface of the ceramic diaphragm 90 by the pattern detection mechanism 60.
[0045] In one embodiment, the pattern detection mechanism 60 further includes a mounting frame, on which the pattern detection device 64 is disposed; a transparent partition 65 is mounted on the mounting frame via a connecting assembly. In this embodiment, the pattern detection device 64 may be a CCD camera, which scans and detects the internal electrode pattern on the surface of the passing ceramic diaphragm 90 by moving back and forth and left and right.
[0046] Specifically, such as Figure 2 As shown, the mounting frame includes a front mounting frame 631 and a rear mounting frame 632 arranged sequentially along the forward direction of the ceramic diaphragm 90, and the front mounting frame 631 and the rear mounting frame 632 are mounted on the mounting platform. The front mounting frame 631 and the rear mounting frame 632 are respectively arranged across the left and right sides of the ceramic diaphragm 90. The mounting frame also includes a connecting beam 633 spanning between the front mounting frame 631 and the rear mounting frame 632, and the pattern detection device 65 is disposed at the bottom of the connecting beam 633. In this embodiment, the pattern detection mechanism may also include a driving device (not shown), which can drive the connecting beam 633 to slide left and right relative to the front mounting frame 631 and the rear mounting frame 632, and can also drive the pattern detection device 65 to slide back and forth at the bottom of the connecting beam 633, thereby realizing the forward, backward, left and right movement of the pattern detection device. In one embodiment, the driving device can be implemented by a motor, lead screw and guide rail in the conventional technology, which will not be described in detail here.
[0047] like Figure 2 and 3 As shown, the connecting assembly includes multiple connectors 66, which are respectively disposed on the left and right sides of the front mounting bracket 631 and the left and right sides of the rear mounting bracket 632. The connectors 66 have a U-shaped structure, with their upper ends fixed to the bottom of the front mounting bracket 631 or the rear mounting bracket 632 by fasteners, and their lower ends used to support the transparent partition. The fasteners can be screws.
[0048] In this embodiment, the transparent partition 65 can be easily cleaned or replaced by simply taking it out.
[0049] In a preferred embodiment, such as Figure 1-3 As shown, the detection area 62 of the pattern detection mechanism 60 and the film output area 51 of the printing mechanism 50 are located on the same horizontal plane, and one end of the transparent partition 65 extends above the film output area 51 of the printing mechanism.
[0050] In one embodiment, such as Figure 1-3 As shown, the screen printing machine 100 also includes a drying mechanism 70, which is located after the work station of the pattern detection mechanism 60 and is used to dry the internal electrode pattern printed on the ceramic film 90.
[0051] The membrane input area 71 of the drying mechanism 70 and the detection area 62 of the pattern detection mechanism 60 are located on the same horizontal plane, and the other end of the transparent partition 65 extends above the membrane input area 71 of the drying mechanism 70.
[0052] In the application embodiment, the transparent partition 65 extends from the pattern detection mechanism 60 to the outlet of the printing mechanism 50 and the inlet of the drying mechanism 70, respectively, which can minimize the amount of dust falling onto the ceramic film 90 in a wet state.
[0053] In one embodiment, preferably, the transparent partition 65 is a glass plate. In other examples, it may also be a transparent plastic plate, or a transparent sheet made of other materials.
[0054] In a preferred embodiment, such as Figure 1 As shown, the screen printing machine 100 also includes a front suction roller 41, which is mounted on the main frame and located in front of the printing mechanism 50. The front suction roller 41 is used to transport the ceramic film 90.
[0055] The front suction roller 41 has suction holes (not shown) on its surface and suction channels connected to the suction holes inside. The front suction roller 41 is used to adsorb dust on the lower surface of the ceramic diaphragm 90.
[0056] In a preferred embodiment, such as Figure 1 As shown, the screen printing machine 100 also includes a rear suction roller 42. The drying mechanism 70 is located behind the work station of the graphic detection mechanism 60, and the rear suction roller 42 is located behind the work station of the drying mechanism 70. The rear suction roller 42 is used to transport the ceramic film 90. The surface of the rear suction roller 42 is provided with suction holes, and the interior of the rear suction roller is provided with suction channels connected to the suction holes. The rear suction roller 42 is used to adsorb dust on the lower surface of the printed ceramic film 90.
[0057] In this embodiment, the suction channels inside the front suction roller 41 and the rear suction roller 42 can be connected to the vacuum pump of the aforementioned vacuuming device, or the vacuuming device can be set separately inside or outside them.
[0058] like Figure 1As shown, in one embodiment, the screen printing machine 100 further includes an unwinding mechanism 20, a front tensioning mechanism 31, a rear tensioning mechanism 32, and a rewinding mechanism 80. The ceramic film 90 is unwound by the unwinding mechanism 20, passes through the front tensioning mechanism 31, and is then fed into the printing mechanism 50 by the front suction roller 41 to print the inner electrode pattern. After drying, the ceramic film 90 is fed into the rear tensioning mechanism 32 by the rear suction roller 42 and then rewound by the rewinding mechanism 80, completing the printing process. In other examples, a pre-printing inspection mechanism is also provided between the front suction roller 41 and the printing mechanism 50 to visually inspect the surface of the ceramic film 90 for defects.
[0059] 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.
[0060] 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 utility model patent. 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 application should be determined by the appended claims, and the specification can be used to interpret the content of the claims.
Claims
1. A screen printing machine, characterized in that, include: The outer casing has an exhaust vent on it; Printing facilities; A pattern inspection mechanism is located behind the workstation of the printing mechanism. The pattern inspection mechanism includes an inspection area for the film to pass through, and a dustproof component is provided above the inspection area to prevent dust from falling. A vacuuming device includes a vacuum pump and an air duct, wherein the vacuum pump is connected to the exhaust port via the air duct.
2. The screen printing machine as described in claim 1, characterized in that: The dustproof component is a transparent partition, and a graphic detection device is also provided above the detection area. The transparent partition is located between the detection area and the graphic detection device.
3. The screen printing machine as described in claim 2, characterized in that: The graphic detection mechanism also includes a mounting frame, on which the graphic detection device is mounted; The transparent partition is mounted on the mounting frame via a connecting assembly.
4. The screen printing machine as described in claim 3, characterized in that: The mounting frame includes a front mounting frame and a rear mounting frame arranged sequentially along the forward direction of the diaphragm. The front mounting frame and the rear mounting frame are respectively arranged across the left and right sides of the diaphragm. The mounting frame also includes a connecting beam spanning between the front mounting frame and the rear mounting frame. The graphic detection device is disposed at the bottom of the connecting beam. The connecting assembly includes multiple connectors, which are respectively disposed on the left and right sides of the front mounting bracket and the left and right sides of the rear mounting bracket; the connectors are U-shaped, with their upper ends fixed to the bottom of the front mounting bracket or the rear mounting bracket by fasteners, and their lower ends used to support the transparent partition.
5. The screen printing machine as described in claim 2, characterized in that: The detection area of the graphic detection mechanism and the film output area of the printing mechanism are located on the same horizontal plane, and one end of the transparent partition extends above the film output area of the printing mechanism.
6. The screen printing machine as described in claim 5, characterized in that: It also includes a drying mechanism, which is located after the work station of the pattern detection mechanism and is used to dry the printed pattern on the film. The film input area of the drying mechanism and the detection area of the pattern detection mechanism are located on the same horizontal plane, and the other end of the transparent partition extends above the film input area of the drying mechanism.
7. The screen printing machine as described in claim 2, characterized in that: The transparent partition is a glass plate.
8. The screen printing machine as described in claim 1, characterized in that: It also includes a front suction roller, which is located in front of the station of the printing mechanism and is used to transport the film. The surface of the front suction roller is provided with suction holes, and the interior of the front suction roller is provided with suction channels connected to the suction holes.
9. The screen printing machine as described in claim 8, characterized in that: It also includes a drying mechanism and a rear suction roller. The drying mechanism is located after the work station of the pattern detection mechanism, and the rear suction roller is located after the work station of the drying mechanism. The drying mechanism is used to dry the printed pattern on the film, and the rear suction roller is used to transport the film. The surface of the rear suction roller is provided with suction holes, and the interior of the rear suction roller is provided with suction channels connected to the suction holes.
10. The screen printing machine as described in claim 1, characterized in that: It also includes a main frame, which is disposed within the housing, and the printing mechanism and the graphic detection mechanism are both disposed on the main frame.