Web Splicing Apparatus Vibration Control via Linear Deflection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing web splicing systems for disposable garment and absorbent sanitary products face issues with destabilizing vibrations and kickbacks during the splicing process, and are limited to splicing single webbing lines, making them unreliable and inefficient.
Innovation Solution
A web splicing apparatus with a frame and carriage system that includes bump rollers and actuators to translate and position the web deflection devices linearly, allowing for precise splicing of webbing from expiring rolls to new rolls while preventing kickbacks and enabling splicing of multiple web roll lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the arm assembly accelerates towards the rotating new web roll to cause webbing contact and break, then the splicing function is achieved, but destabilizing vibrations reverberate through the apparatus
Solution Approach 1:
The arm assembly is divided into multiple sections with individual rollers at each section. This segmentation allows the breaking action to be distributed across multiple contact points rather than concentrated at a single point, reducing the intensity of vibrations transmitted through the apparatus while maintaining the webbing breaking function.
Solution Approach 2:
The apparatus includes vibration damping elements and cushioning mechanisms positioned at strategic locations along the arm assembly and web path. These elements are pre-positioned to absorb and dampen vibrations before they can reverberate through the entire apparatus, thereby reducing destabilizing effects while preserving splicing reliability.
2Reliability
If the arm assembly brings web material from the expiring web roll into contact with web material from the new web roll, then splicing is achieved, but the arm assembly undergoes kickback or rebound preventing reliable splicing
Solution Approach 1:
The arm assembly incorporates counterweight elements that balance the mechanical forces generated during the webbing contact and break action. These counterweights offset the kickback and rebound forces, preventing the arm assembly from moving unpredictably and ensuring stable, reliable splicing operations.
Solution Approach 2:
The arm assembly is designed with dynamic characteristics that allow it to absorb and dissipate the energy from webbing contact and break actions. The system includes flexible elements and damped motion mechanisms that convert the sudden force of kickback into controlled, minimal movement, maintaining operational stability throughout the splicing process.
3Adaptability or versatility
If the arm assembly is designed for splicing web rolls in a single webbing line, then the structure is simple, but it cannot splice web rolls of multiple webbing lines
Solution Approach 1:
The arm assembly is designed with universal characteristics that enable it to perform splicing operations on multiple webbing lines. Each arm section can be independently positioned and operated to splice web rolls on different lines, allowing a single apparatus to handle multiple webbing streams simultaneously or sequentially without requiring separate dedicated assemblies for each line.
Data Source
Figure 1~2
Figure 3
Figure 4~6
AI summary
A web splicing apparatus (2) is disclosed that includes a web unwinding unit (4) configured to hold a running web material roll (34) and a new web material roll (36) and to unwind webbing (8) from the running web material roll (34) and a web splicing unit (50) operable with the web unwinding unit (4) to selectively splice the webbing (8) of the running web material roll (34) with webbing (8) of the new web material roll (36). The web splicing unit (50) further includes a cutting assembly (92) configured to selectively sever the webbing (8) of the running web material roll (34), a web deflection device (94), an actuator system (98) configured to linearly translate the web deflection device (94) in a first direction and a second direction opposite the first direction, and a locking mechanism (174) operable in a locked state and an unlocked state to selectively prohibit and enable movement of the web deflection device (94) in the first direction and the second direction.