Blister Packaging Machine Punching Unit for Rounded Corners
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Solution Overview
Problem
Existing blister packaging machines face challenges in maintaining productivity while preventing contamination from film scraps during the manufacturing of blister packs with rounded corners, as the punching process generates excessive waste and requires additional processing steps, limiting design flexibility and increasing costs.
Innovation Solution
A blister packaging machine configuration that includes a punching unit to form the blister pack's outer edge shape by punching the container and inner cover films continuously along the conveying direction, eliminating the need for separate corner rounding and reducing scrap separation, thereby enhancing design flexibility and productivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a punching process is added to form rounded corners before cutting, then the outer edge shape flexibility is improved, but the device complexity and productivity deteriorate due to requiring separate punching and cutting processes
Solution Approach 1:
The patent combines the punching process and cutting process into a single integrated operation. The punching unit forms rounded corners and the cutting unit cuts the container film along the same operational sequence without requiring separate dedicated punching and cutting stages, thereby maintaining design flexibility while improving productivity by reducing process steps
2Adaptability or versatility
If a punching process is added to form rounded corners, then the outer edge shape flexibility is improved, but the device complexity increases due to additional processing steps
Solution Approach 1:
The patent integrates the punching and cutting operations into a unified manufacturing sequence where both operations are performed in close succession within the same production line, reducing the number of separate processing stages and equipment interfaces while still achieving the desired rounded corner effect
3Shape
If the punching process separates scraps from the container film, then the corner rounding is achieved, but contamination risk increases due to scattered scraps
Solution Approach 1:
The patent extracts and removes the punched scraps from the production area in a controlled manner, separating them from the container film before the cutting process. This prevents the scraps from contaminating the final product while still achieving the desired corner rounding effect
4Shape
If separate punching and cutting processes are used, then the corner rounding is achieved, but the productivity decreases due to increased number of processes
Solution Approach 1:
The patent merges the punching and cutting processes into an integrated operational sequence where both functions are performed within the same production flow without requiring separate dedicated stages. This maintains the ability to produce rounded corners while eliminating the productivity loss associated with multiple separate processes
Data Source
AI summary
A blister packaging machine that manufactures a blister pack, wherein the blister pack comprises: a lidded container that includes a container main body and an outer lid portion; and an inner cover film attached to close the opening of the container main body, the blister packaging machine comprising: a conveyor; a molding device that executes a molding process to a strip-shaped container film and form a lidded container-corresponding part corresponding to the lidded container; a placing device that is disposed downstream of the molding device and places the article in a container part; a sealing device that is disposed downstream of the placing device and attaches the inner cover film to close an opening of the container part; and a punching device that is disposed downstream of the sealing device and punches out the lidded container-corresponding part along with the inner cover film to produce the blister pack.