A dual-cylinder control system for a screen printing machine and a screen printing squeegee

Abstract

This application provides a dual-cylinder control system for a screen printing machine and a screen printing squeegee. The system includes a first cylinder with a first piston rod; a second cylinder with a second piston rod; a first connecting assembly including a first part, the second cylinder being fixedly connected to the first part, and the first piston rod being connected to the first part; and a squeegee holder connected to the second piston rod. This control system achieves rapid coarse adjustment and positioning of the squeegee holder with a large stroke using the first cylinder, while the second cylinder performs fine adjustment control, effectively balancing the adjustment range and positioning accuracy. This significantly improves the efficiency and stability of squeegee height control in screen printing, while also being simple, reliable, cost-effective, and highly practical.

Description

Technical Field

[0001] This application relates to the field of screen printing machines, and more particularly to a dual-cylinder control system for a screen printing machine and a screen printing squeegee. Background Technology

[0002] In the manufacturing process of ceramic capacitors, a screen printing machine is used to print ceramic paste onto a carrier film. Precise and effective control of the squeegee directly determines the printing quality and is a core aspect of ceramic capacitor production. Traditional adjustment methods are inefficient and lack precision, making them unsuitable for automated production. With technological advancements, pneumatic or electric actuators are gradually replacing manual operation, but inherent contradictions remain: if the actuator prioritizes wide stroke adjustment capabilities, positioning accuracy is limited; if high-precision control is emphasized, the adjustment range is significantly narrowed. Existing solutions struggle to simultaneously meet the dual requirements of large initial positioning and subtle height compensation, especially when facing variations in substrate thickness or dynamic printing scenarios, where stability and adaptability are challenged. While some high-precision drive technologies have achieved breakthroughs in local performance, they suffer from complex structures, high maintenance costs, and insufficient dynamic response, hindering large-scale application in high-efficiency production.

[0003] Therefore, the industry urgently needs an innovative solution that can combine the advantages of rapid large-stroke adjustment and micron-level precision, while ensuring that the system is responsive, compact, economical and reliable, thus providing key technical support for high-quality screen printing. Utility Model Content

[0004] This application provides a dual-cylinder control system for a screen printing machine and a screen printing squeegee. The control system uses a first cylinder to achieve rapid coarse adjustment and positioning of the squeegee holder over a large stroke, and a second cylinder for fine adjustment control. This effectively balances the adjustment range and positioning accuracy, significantly improving the efficiency and stability of squeegee height control in screen printing. At the same time, the system is simple and reliable, cost-controllable, and highly practical.

[0005] In a first aspect, a dual-cylinder control system for a screen printing machine is provided, the system comprising:

[0006] The first cylinder includes a first piston rod;

[0007] The second cylinder includes a second piston rod;

[0008] A first connecting assembly, the first connecting assembly includes a first part, a second cylinder is fixedly connected to the first part, and a first piston rod is connected to the first part;

[0009] A tool holder, which is connected to the second piston rod.

[0010] It should be understood that when the piston rod of the first cylinder drives the first connecting assembly to move, it simultaneously drives the overall displacement of the second cylinder connected to it, thereby achieving a large-range coarse adjustment and positioning of the scraper height. When the scraper enters the area near the target height, the second cylinder starts independently and pushes the blade holder for fine adjustment through its piston rod. At this time, the first cylinder remains stationary to eliminate interference. The movement of the two-stage cylinders is separated in time through the structural decoupling of the connecting assembly. In the coarse adjustment stage, the first cylinder provides rapid and large-stroke power output, while in the fine adjustment stage, the more responsive second cylinder completes high-precision position compensation. The entire control process is seamlessly connected through mechanical linkage, which significantly improves the overall accuracy and adaptability of scraper height control while ensuring response speed and reliability.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, the first part is provided with a first connecting hole on the side facing the first piston rod, and the first piston rod is connected to the first connecting hole.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the tool holder is provided with a second connecting hole on the side facing the second piston rod, and the second piston rod is connected to the second connecting hole.

[0013] In conjunction with the first aspect, in some implementations of the first aspect, the system includes a slide rail, a first slider and a second slider, the first slider and the second slider being distributed on the slide rail.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, the first connecting component includes a second part, which is fixedly connected to the first slider, and the first part and the second part are an integral structure.

[0015] In conjunction with the first aspect, in some implementations of the first aspect, the system includes a second connecting component connected to the tool holder and connected to the second slider.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the first cylinder includes a first air inlet and a first air outlet; the second cylinder includes a second air inlet and a second air outlet.

[0017] In conjunction with the first aspect, in some implementations of the first aspect, the system includes a top, the first cylinder is fixedly connected to the top, the top includes multiple through holes, and pneumatic components are connected to the first air inlet, the first air outlet, the second air inlet and the second air outlet through the through holes to form a pneumatic circuit.

[0018] In conjunction with the first aspect, in some implementations of the first aspect, the system further includes a controller that controls the air pressure of the first cylinder and the second cylinder.

[0019] It should be understood that by integrating an intelligent controller into the dual-cylinder control system, the coordinated and precise control of the air pressure of the two-stage cylinders can be achieved, ensuring seamless connection between coarse adjustment and rapid positioning and fine adjustment and micro-compensation actions. This effectively avoids control deviations caused by air pressure fluctuations or response delays, significantly improves the stability and dynamic adaptability of scraper height adjustment, and enhances the overall reliability of the system.

[0020] In a second aspect, a screen printing squeegee is provided, characterized in that the screen printing squeegee comprises a system as described in any implementation of the first aspect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a screen printing squeegee provided in an embodiment of this application.

[0022] Figure 2 This is a schematic diagram of a dual-cylinder control system for a screen printing machine, provided as an embodiment of this application.

[0023] Figure 3 This is a schematic diagram of the connection structure of a dual-cylinder control system for a screen printing machine, provided as an embodiment of this application.

[0024] Figure 4 A side view of a dual-cylinder control system for a screen printing machine provided in an embodiment of this application. Detailed Implementation

[0025] The terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of this application, “at least one” and “one or more” refer to one, two, or more than two. The term “and / or” is used to describe the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can indicate: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0026] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0027] In ceramic capacitor production, precise control of the doctor blade height directly determines printing quality and is a core process. Traditional manual adjustment is inefficient and inaccurate, making it difficult to meet automation requirements. Current automation solutions have inherent contradictions: wide-stroke actuators lack positioning accuracy, and high-precision actuators have limited adjustment ranges, failing to simultaneously meet the needs of large-scale positioning and fine-tuning compensation, especially when dealing with variations in substrate thickness or dynamic conditions, resulting in insufficient stability. Furthermore, some high-precision drive technologies face bottlenecks in large-scale application, such as complex structures, high costs, and slow response times, hindering improvements in production efficiency.

[0028] This application provides a dual-cylinder control system for a screen printing machine and a screen printing squeegee to solve the above-mentioned problems.

[0029] The technical solutions provided in the embodiments of this application will be described below with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of a screen printing squeegee provided for an embodiment of this application. (Reference) Figure 1 In some examples, the screen squeegee can be used in a variety of work scenarios, such as to accurately and uniformly print the paste of ceramic capacitors onto the surface of a carrier film as a substrate, laying the foundation for the subsequent formation of capacitor components.

[0031] Figure 2 This is a schematic diagram of a dual-cylinder control system for a screen printing machine, provided as an embodiment of this application. (Reference) Figure 2 In some examples, the system includes:

[0032] The first cylinder 1 includes a first piston rod 10;

[0033] The second cylinder 2 includes a second piston rod 20;

[0034] The first connecting assembly 3 includes a first part 31, the second cylinder 2 is fixedly connected to the first part 31, and the first piston rod 10 is connected to the first part 31.

[0035] Tool holder 4, which is connected to the second piston rod 20.

[0036] Figure 3 This is a schematic diagram of the connection structure of a dual-cylinder control system for a screen printing machine, provided as an embodiment of this application. (Reference) Figure 3 In some examples, the first part 31 is provided with a first connecting hole 311 on the side facing the first piston rod 10, and the first piston rod 10 is connected to the first connecting hole 311.

[0037] Optionally, the end of the first piston rod 10 near the first connecting hole 311 is made of an elastic material. When the first cylinder 1 performs a large-stroke rapid adjustment, this elastic end absorbs mechanical impact energy through deformation, effectively mitigating instantaneous load fluctuations in the system and preventing component damage caused by rigid collisions. This design ensures coarse adjustment efficiency while providing a dynamic protection mechanism for the precision connection structure, significantly improving the reliability and service life of the system under high-speed conditions.

[0038] Continue to refer to Figure 3 In some examples, the tool holder 4 is provided with a second connecting hole 41 on the side facing the second piston rod 20, and the second piston rod 20 is connected to the second connecting hole 41.

[0039] Continue to refer to Figure 3 In some examples, the system includes a slide rail 5, a first slider 51 and a second slider 52, which are distributed on the slide rail.

[0040] Continue to refer to Figure 3 In some examples, the first connecting component 3 includes a second part 32, which is fixedly connected to the first slider 51, and the first part 31 and the second part 32 are an integral structure. (Continue to refer to...) Figure 3 In some examples, the system includes a second connection component 6 connected to the tool holder 4 and the second slider 52.

[0041] Figure 4 A side view of a dual-cylinder control system for a screen printing machine provided as an embodiment of this application. (Reference) Figure 2 and Figure 3 In some examples, the first cylinder 1 includes a first air inlet 11 and a first air outlet 12; the second cylinder 2 includes a second air inlet 21 and a second air outlet 22.

[0042] Continue to refer to Figure 4In some examples, the system includes a top 7, to which the first cylinder 1 is fixedly connected. The top includes a plurality of through holes 71, through which pneumatic components are connected to the first air inlet 11, the first air outlet 12, the second air inlet 21, and the second air outlet 22 to form a pneumatic circuit.

[0043] In some examples, the system also includes a controller that controls the air pressure of the first cylinder 1 and the second cylinder 2.

[0044] Optionally, the blade holder 4 integrates a sensor that monitors the dynamic distance between the blade holder and the surface of the product to be printed in real time, providing feedback to form the basis of closed-loop control. When the blade height deviates slightly due to mechanical vibration or material deformation, the controller can trigger the second cylinder for dynamic compensation based on the real-time distance measurement data, effectively suppressing printing pressure fluctuations. This design significantly improves the control accuracy of the system.

[0045] This application provides a screen printing squeegee, which includes the system described in any of the foregoing examples.

[0046] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or variations made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A dual-cylinder control system for a screen printing machine, characterized in that, The system includes: The first cylinder (1) includes a first piston rod (10); The second cylinder (2) includes a second piston rod (20); A first connecting assembly (3) includes a first part (31), a second cylinder (2) fixedly connected to the first part (31), and a first piston rod (10) connected to the first part (31); and a tool holder (4) connected to the second piston rod (20).

2. The system according to claim 1, characterized in that, The first part (31) has a first connecting hole (311) on the side facing the first piston rod (10), and the first piston rod (10) is connected to the first connecting hole (311).

3. The system according to claim 2, characterized in that, The tool holder (4) is provided with a second connecting hole (41) on the side facing the second piston rod (20), and the second piston rod (20) is connected to the second connecting hole (41).

4. The system according to claim 3, characterized in that, The system includes a slide rail (5), a first slider (51) and a second slider (52), the first slider (51) and the second slider (52) being distributed on the slide rail.

5. The system according to claim 4, characterized in that, The first connecting component (3) includes a second part (32), which is fixedly connected to the first slider (51). The first part (31) and the second part (32) are an integral structure.

6. The system according to claim 5, characterized in that, The system includes a second connecting component (6), which is connected to the tool holder (4) and the second slider (52).

7. The system according to claim 6, characterized in that, The first cylinder (1) includes a first air inlet (11) and a first air outlet (12); the second cylinder (2) includes a second air inlet (21) and a second air outlet (22).

8. The system according to claim 7, characterized in that, The system includes a top (7), the first cylinder (1) is fixedly connected to the top (7), the top includes multiple through holes (71), and pneumatic components are connected to the first air inlet (11), the first air outlet (12), the second air inlet (21) and the second air outlet (22) through the through holes (71) to form a pneumatic circuit.

9. The system according to claim 8, characterized in that, The system also includes a controller that controls the air pressure of the first cylinder (1) and the second cylinder (2).

10. A screen printing squeegee, characterized in that, The screen printing squeegee comprises the system as described in any one of claims 1 to 9.

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