Screen Printing Adjustment Mechanism for Deformation Prevention
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Solution Overview
Problem
Conventional screen printing machines face inefficiencies due to the inability to adjust the screen's position simultaneously in both the X and Y directions, leading to increased production time and potential screen deformation during cleaning, which affects print quality and user safety.
Innovation Solution
A moving-out and adjustment device featuring a frame with pneumatic cylinders, sliding members with guiding rails and slots, and an adjustment mechanism that allows synchronized movement in the X-Y plane, providing stable support and preventing deformation during screen removal and repositioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the screen is pulled outward for cleaning, then the screen becomes accessible for cleaning, but the screen deforms due to insufficient support
Solution Approach 1:
The screen printing unit is designed with movable and pivotal capabilities, allowing the screen to be dynamically adjusted between a horizontal printing position and an upward pivotal position for cleaning. This dynamic repositioning provides cleaning accessibility while the supporting frame and guiding rails maintain screen stability and prevent deformation during the movement process.
Solution Approach 2:
A lifting plate is introduced as an intermediary component between the screen and the supporting frame. The lifting plate provides uniform support across the screen surface during movement, preventing local deformation while enabling the screen to be moved outward and upward for cleaning access.
2Ease of operation
If the screen printing unit is pivoted upward for cleaning, then the screen becomes accessible, but the unit sways and causes safety issues without proper support
Solution Approach 1:
The lifting plate serves as a mediator that distributes the screen's weight uniformly across the supporting frame during pivotal movement. This intermediary support prevents unit swaying and maintains stability, while still allowing the screen to be pivoted upward for cleaning access.
Solution Approach 2:
Guiding rails are provided at specific locations to constrain and guide the pivotal movement of the screen printing unit. These localized guiding structures ensure controlled movement along the intended path, preventing unwanted swaying while maintaining the ability to pivot the screen upward for cleaning.
3Adaptability or versatility
If separate adjusting members are used for forward-backward and left-right movement, then the screen can be positioned in both directions, but the adjustment time increases
Solution Approach 1:
The adjusting mechanism is designed to combine forward-backward and left-right adjustment capabilities into a single integrated system. The slide block with guiding slots and the drive mechanism work together to enable simultaneous or coordinated adjustment in both directions, eliminating the need for separate sequential adjustments and reducing total adjustment time.
4Volume of moving object
If the distance between the screen and the table is narrow, then the structure is compact, but the screen cleaning becomes inconvenient
Solution Approach 1:
The screen printing unit is designed with pivotal movement capability, allowing it to rotate upward from the compact horizontal position during cleaning operations. This dynamic repositioning creates sufficient clearance for cleaning access while maintaining a compact structure during normal printing operations, thus resolving the contradiction between compactness and cleaning convenience.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables fast, precise, and convenient screen cleaning and adjustment, reducing production time and preventing screen deformation, thus enhancing operational efficiency and safety while supporting mass production.
Implementation Method 1
The two sliding members 20 are respectively arranged at a left side and a right side of the upper frame 11 symmetrically. A screen 40 is assembled between the two sliding members 20 and is moved out horizontally by the sliding members 20
Data Source
AI summary
A moving-out and adjustment device for screens is revealed. The moving-out and adjustment device is applied to screen printing machines and having a frame, two sliding member and an adjustment mechanism. The frame consists of an upper frame and a lower frame. The two sliding members are disposed on two sides of the upper frame symmetrically and a screen is mounted between the two sliding members. Thus the screen is moved from a printing position of a screen printing machine horizontally by the sliding members. The bending and deformation of the screen can be avoided. The adjustment mechanism is arranged at the frame and having a first moving unit and a second moving unit. By operating the first moving unit and the second moving unit, the upper frame is moved in both the X direction and the Y direction in the X-Y plane in relation to the lower frame.