Confectionery Wrapping Edge Alignment via Intermediary Guide
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Solution Overview
Problem
Existing methods for wrapping confectionery products often result in irregular folds and flaws due to incorrect junction of cold welding zones, especially at high speeds, leading to compromised wrapping quality and material inefficiency.
Innovation Solution
The method involves partially wrapping a confectionery product with a wrapping sheet where opposite longitudinal edges protrude asymmetrically, using sliding abutment means to keep them spaced during transfer, and then folding them simultaneously with folding means that interpose abutment plates at a longitudinal plane parallel to the product's rotation axis, ensuring precise alignment and welding of the edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the wrapping assembly operates at high speed, then productivity is improved, but the cold welding zones join in irregular manner creating undesired folds and flaws
Solution Approach 1:
A guide member is introduced as an intermediary element between the folding means and the protruding edges. This guide member defines a guide plane that constrains the edges during the folding process, ensuring they join precisely at the cold welding zones even at high wrapping speeds. The guide member acts as a mediator that transfers the folding motion while maintaining edge alignment.
Solution Approach 2:
The guide member is designed to work in conjunction with the folding means where the folding means applies force to the guide member, which in turn guides the edges into proper alignment. The system uses the folding motion itself to activate the guiding function, making the alignment process self-regulating without requiring additional active control mechanisms.
2Productivity
If the edges are folded simultaneously, then the wrapping process is simplified and productivity is improved, but inertial movements cause incorrect junction of edges
Solution Approach 1:
The guide member serves as a mediator that receives the simultaneous folding action from both edges and converts it into controlled motion along a defined guide plane. This ensures that even though the edges are folded simultaneously, their junction is controlled and reliable, preventing inertial movements from causing misalignment.
Solution Approach 2:
The guide member is pre-positioned to define the guide plane before the folding operation begins. This preliminary positioning ensures that when the edges are folded simultaneously, they are already constrained to follow the correct path, preventing inertial deviations and ensuring reliable junction at the cold welding zones.
Data Source
Figure 1~6
Figure 2~3
Figure 4~5
AI summary
The method for wrapping confectionery products provides to transfer to a folding station (6) the products (2) partially wrapped with a respective wrapping sheet (20) having longitudinal edges (21, 22) protruding from the product (2). During the transfer step, at least one of said protruding longitudinal edges (21, 22) of the wrapping sheet (20) engages sliding abutment means (30) suitable to maintain the same longitudinal edges (21, 22) spaced. Between the protruding longitudinal edges (21, 22) of the wrapping sheet (20), abutment means (17) are then interposed, suitable to cooperate with fold means (10) at a longitudinal plane (B) of said product (2). The abutment means (17) are removed in suitable step relationship with the completion of the folding of the edges (21, 22), in order to allow the union between welding zones of the folded edges (21, 22).