A screen printing machine transport mechanism

Abstract

The embodiment of the application provides a screen printing machine transmission mechanism, which comprises a driving cylinder, a workbench, a guide rail, a sensor group and a controller; the driving cylinder is used for driving the workbench to move along the direction of the guide rail; the sensor group is used for collecting position information of the workbench and feeding back the position information to the controller; and the controller is used for controlling the driving cylinder to drive the workbench to move. The transmission mechanism is directly driven by the cylinder and cooperates with the guide rail, so that the mechanical structure of the transmission mechanism is simplified, the manufacturing cost and the maintenance difficulty are significantly reduced; meanwhile, a real-time closed-loop control system is constructed based on the cooperative feedback of multiple sensors, the displacement trajectory and the motion state of the workbench are directly monitored, the action of the cylinder is dynamically corrected, the position control misalignment problem caused by the traditional indirect measurement mode is effectively solved, and the cooperative optimization of high cost performance, strong adaptability and calibration-free reliable operation is realized.

Description

Technical Field

[0001] This application relates to the field of screen printing machine equipment, and more particularly to a screen printing machine transmission mechanism. Background Technology

[0002] In the manufacturing process of ceramic capacitors, the precise and uniform transfer of ceramic paste with specific electrical properties onto an ultra-thin and flexible carrier film via screen printing is a crucial step in forming a precision electrode layer. This step places stringent requirements on the transmission and positioning accuracy and stability of the screen printing machine.

[0003] Current mainstream transmission mechanisms generally rely on rotary motors in conjunction with mechanical transmission chains to drive the worktable. However, this control mode has inherent limitations: Firstly, the system typically calculates the worktable position indirectly only through the motor's built-in angle detection unit. This indirect measurement method cannot provide real-time feedback on the actual motion state of the load end. Especially when transmission components exhibit elastic deformation, backlash, or wear, the transmission error of the position signal is continuously amplified. Secondly, the lack of a multi-point collaborative sensing architecture results in the absence of monitoring of key parameters during the motion process. The actual trajectory, speed fluctuations, and positioning stability of the worktable are difficult for the system to perceive and correct in real time. This open-loop or semi-closed-loop control deficiency forces the equipment to use ultra-high-precision transmission components to compensate for measurement blind spots, significantly increasing manufacturing costs and assembly difficulty. Simultaneously, due to the inability to dynamically respond to positioning drift caused by load changes and mechanical wear, the equipment requires frequent production interruptions for manual calibration, severely restricting the process stability of continuous printing.

[0004] The aforementioned limitations reflect the structural bottlenecks of traditional drive architectures when facing modern industrial scenarios requiring high precision, low cost, and easy maintenance. There is an urgent need to explore simpler and more reliable alternatives for power transmission and position control to overcome obstacles to industrial upgrading. Utility Model Content

[0005] This application provides a transmission mechanism for a screen printing machine. This mechanism simplifies the mechanical structure and significantly reduces manufacturing costs and maintenance difficulty through direct cylinder drive and guide rail guidance. Simultaneously, a real-time closed-loop control system based on multi-sensor collaborative feedback directly monitors the worktable's displacement trajectory and motion state, dynamically correcting cylinder actions and effectively solving the position control inaccuracy problem caused by traditional indirect measurement methods. The dynamically adjustable sensor layout further enhances the system's adaptability to complex working conditions, ensuring long-term stability of positioning accuracy while achieving a synergistic optimization of high cost-effectiveness, strong adaptability, and calibration-free reliable operation. In a first aspect, a screen printing machine transmission mechanism is provided, comprising: a drive cylinder, a worktable, a guide rail, a sensor group, and a controller; the drive cylinder drives the worktable to move along the guide rail; the sensor group collects the worktable's position information and feeds it back to the controller; the controller controls the drive cylinder to drive the worktable to move.

[0006] It should be understood that by directly driving the worktable along the guide rail with cylinders, and combining this with multi-sensor collaborative real-time acquisition of the worktable's displacement trajectory and feedback to the controller, a closed-loop control system is formed, effectively overcoming the error problem of traditional indirect measurement methods. The system structure is simple and reliable, significantly reducing manufacturing and maintenance costs. At the same time, based on real-time feedback signals, the cylinder action is dynamically adjusted to ensure long-term stability and anti-interference capability of positioning accuracy under conditions without complex transmission chains, achieving a synergistic optimization of high cost-effectiveness and reliable operation.

[0007] In conjunction with the first aspect, in some implementations of the first aspect, the transmission mechanism includes a base, the guide rail is mounted on the base, and the drive cylinder is mounted at one end of the base.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the sensor group includes:

[0009] A first sensor, which moves along the guide rail together with the worktable;

[0010] The second sensor is mounted on the side of the base away from the drive cylinder.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, the sensor group further includes a third sensor mounted at the midpoint of the base, the third sensor being used to measure the moving speed of the worktable.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the first sensor and the third sensor cooperate to collect the position information of the worktable and the guide rail.

[0013] It should be understood that by combining the first sensor that moves with the workbench, the third sensor that is fixed at a remote end, and the collaborative detection mechanism of the two, accurate real-time monitoring of the workbench's position throughout the entire process and precise positioning of the terminal are achieved, which effectively improves the motion stability and positioning reliability of the transmission mechanism, while simplifying the structure and reducing maintenance difficulty.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, the first sensor may also collect the air pressure information of the driving cylinder and transmit the air pressure information to the controller.

[0015] It should be understood that by integrating the air pressure monitoring function to collect the air pressure information of the drive cylinder, its working status can be grasped, thereby enabling better control of the worktable.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the third sensor is movably connected to the base.

[0017] It should be understood that the addition of a movable third sensor to monitor the movement speed of the worktable in real time, and to work in conjunction with the first sensor to achieve dynamic feedback of the motion status throughout the process, effectively improves the ability to actively control the stability of the cylinder drive. At the same time, the adjustable sensor position design enhances the adaptability of the equipment to different adjustment strokes, and significantly optimizes the motion accuracy and reliability of the worktable movement process.

[0018] In conjunction with the first aspect, in some implementations of the first aspect, the worktable includes a connecting block, the connecting block being fixedly connected to the worktable and slidably connected to the guide rail. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a screen printing machine transmission mechanism provided in an embodiment of this application.

[0020] Figure 2 A side view of a screen printing machine transport mechanism provided in an embodiment of this application. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] In ceramic capacitor manufacturing, screen printing requires the precise transfer of ceramic paste to an ultra-thin carrier film to form precision electrodes, placing extremely high demands on the positioning accuracy and stability of the transmission mechanism. Current mainstream solutions rely on rotary motors to drive the worktable, but this control mode has inherent flaws: Firstly, the system only indirectly calculates the worktable position through the motor's built-in angle detection unit, failing to provide real-time feedback on the actual motion state of the load end. This leads to the continuous accumulation of errors caused by elastic deformation, backlash, or wear of the transmission components. Secondly, the sensing architecture lacks multi-point collaborative monitoring, making it difficult to perceive the actual trajectory, speed fluctuations, and positioning stability of the worktable. This semi-closed-loop control defect forces the equipment to use ultra-high-precision transmission components to compensate for measurement blind spots, significantly increasing costs and assembly difficulty. Furthermore, because it cannot dynamically respond to positioning drift caused by load changes and mechanical wear, frequent production interruptions for manual calibration are necessary, severely impacting the stability of continuous printing.

[0024] This application provides a screen printing machine transport mechanism to overcome the above-mentioned problems.

[0025] The technical solutions provided by the embodiments of this application will be described below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of a screen printing machine transmission mechanism provided in an embodiment of this application. Figure 2 A side view of a screen printing machine transport mechanism provided in an embodiment of this application.

[0027] refer to Figure 1 and Figure 2 In some examples, the mechanism includes: a drive cylinder 1, a worktable 2, a guide rail 3, a sensor group 4, and a controller 5; the drive cylinder 1 is used to drive the worktable 2 to move along the direction of the guide rail 3, the sensor group 4 is used to collect the position information of the worktable 2 and feed the position information back to the controller 5, and the controller 5 is used to control the drive cylinder 1 to drive the worktable 2 to move.

[0028] Continue to refer to Figure 1 and Figure 2 In some examples, the transmission mechanism includes a base 6, the guide rail 3 is mounted on the base 6, and the drive cylinder 1 is mounted on one end of the base 6.

[0029] Continue to refer to Figure 1 and Figure 2 In some examples, the sensor group 4 includes:

[0030] The first sensor 41 moves along the guide rail 3 together with the worktable 2;

[0031] The second sensor 42 is mounted on the side of the base 6 away from the drive cylinder 1.

[0032] Continue to refer to Figure 1 and Figure 2 In some examples, the sensor group 4 further includes a third sensor 43, which is mounted at the midpoint of the base and is used to measure the moving speed of the worktable 2.

[0033] Continue to refer to Figure 1 and Figure 2 In some examples, the first sensor 41 and the third sensor 43 cooperate to collect the position information of the workbench 2 and the guide rail 3.

[0034] Continue to refer to Figure 1 and Figure 2 In some examples, the first sensor 41 can also collect the air pressure information of the drive cylinder 1 and transmit the air pressure information to the controller 5.

[0035] In one possible implementation, the base 6 of the transmission mechanism is fixedly mounted with a guide rail 3, and the drive cylinder 1 is horizontally positioned at the end of the base 6 and rigidly connected to the worktable 2 via a piston rod; the first sensor 41, which moves synchronously with the worktable 2, collects the worktable displacement data in real time, and simultaneously integrates a pneumatic pressure monitoring module to detect the pressure in the cylinder chamber; the second sensor 42, installed at a fixed position at the far end of the base 6, accurately senses the worktable's position; the controller 5 synchronously receives the displacement, pneumatic pressure, and position signals, dynamically adjusts the cylinder valve opening to maintain the worktable's movement, and triggers a buffer brake in case of abnormal conditions to ensure the smooth operation of the worktable 2.

[0036] Continue to refer to Figure 1 and Figure 2 In some examples, the third sensor 43 is movably connected to the base 6.

[0037] In one possible implementation, the third sensor 43 is embedded in a sliding block at the midpoint of the base 6, and its axial relative position with the guide rail is manually adjusted by a displacement scale. The third sensor 43 monitors the speed signal of the workbench 2 in real time and uploads it to the controller 5. The controller 5 controls the cylinder driving force based on the data, so that the smoothness control capability of the motion trajectory breaks through the limitation of fixed monitoring points and directly matches complex working conditions such as variable stroke and variable load.

[0038] Continue to refer to Figure 1 and Figure 2 In some examples, the workbench 2 includes a connecting block 21, which is fixedly connected to the workbench 2 and slidably connected to the guide rail 3.

[0039] 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 screen printing machine transport mechanism, characterized by, The mechanism includes: a drive cylinder (1), a worktable (2), a guide rail (3), a sensor group (4), and a controller (5); the drive cylinder (1) is used to drive the worktable (2) to move along the direction of the guide rail (3), the sensor group (4) is used to collect the position information of the worktable (2) and feed the position information back to the controller (5), and the controller (5) is used to control the drive cylinder (1) to drive the worktable (2) to move.

2. The transport mechanism of claim 1, wherein, The transmission mechanism includes a base (6), a guide rail (3) mounted on the base (6), and a drive cylinder (1) mounted on one end of the base (6).

3. The transport mechanism of claim 2, wherein, The sensor group (4) includes: The first sensor (41) moves along the guide rail (3) together with the worktable (2); The second sensor (42) is mounted on the side of the base (6) away from the drive cylinder (1).

4. The transport mechanism of claim 3, wherein, The sensor group (4) also includes a third sensor (43), which is installed at the midpoint of the base and is used to measure the moving speed of the workbench (2).

5. The transport mechanism of claim 4, wherein, The first sensor (41) and the third sensor (43) cooperate to collect the position information of the workbench (2) and the guide rail (3).

6. The transport mechanism of claim 5, wherein, The first sensor (41) can also collect the air pressure information of the drive cylinder (1) and transmit the air pressure information to the controller (5).

7. A transport mechanism according to claim 6, wherein, The third sensor (43) is movably connected to the base (6).

8. The transport mechanism of claim 7, wherein, The workbench (2) includes a connecting block (21), which is fixedly connected to the workbench (2) and slidably connected to the guide rail (3).

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