Sealing Head Application Unit for Beverage Capsule Manufacturing
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Solution Overview
Problem
Current methods for producing coffee capsules with hollow bodies initially devoid of both bottom and top walls are inefficient and ineffective, leading to low productivity and poor quality final products due to slow and poorly designed packaging machines.
Innovation Solution
A packaging machine with an application unit that uses a sealing wheel and sealing heads with gripping and retaining devices to continuously apply and heat-seal bottom and top walls to hollow bodies at constant speed, ensuring precise pressure control and efficient sealing, while also including control wheels for tightness checks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a sealing conveyor with multiple sealing heads is used to apply walls to hollow bodies, then the productivity can be improved, but the device complexity increases
Solution Approach 1:
The sealing conveyor is divided into multiple independent sealing heads (first sealing head, second sealing head, third sealing head, fourth sealing head) that can operate simultaneously on different hollow bodies, enabling parallel processing and increasing productivity without requiring a single complex sealing mechanism
Solution Approach 2:
The sealing conveyor serves multiple functions: it conveys hollow bodies through the sealing zone, positions them correctly, and enables simultaneous sealing operations at multiple stations, reducing the need for separate specialized mechanisms
2Device complexity
If sealing heads are positioned close to each other to reduce machine size, then the device complexity is reduced, but the manufacturing precision of wall application deteriorates
Solution Approach 1:
The sealing heads are arranged in the longitudinal dimension of the conveyor path rather than clustering in the transverse dimension, allowing precise individual positioning of each sealing head while maintaining compact overall machine footprint through efficient spatial utilization
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
The machine achieves high productivity and quality by ensuring continuous operation at constant speed, reducing mechanical stress on products, and simplifying manufacturing and maintenance with structurally simple components.
Implementation Method 1
a sealing member (25) that together with the sealing head (87) is movable between a rest position in which the sealing member is detached from the hollow body (FD) carried by the corresponding seat (10) and a work position in which the sealing element presses against the hollow body (FD) carried by the corresponding seat (10)
Data Source
AI summary
Unit and method for applying a wall to a hollow body in a manufacturing process for producing a beverage capsule; are provided: a sealing conveyor which advances along a sealing path; a sealing head conveyed by the sealing conveyor and which supports a gripping device for gripping the wall and a retaining device suited to retain the hollow body; a first feed station for feeding the wall to the sealing head, so that the wall is gripped by the gripping device; and a second feed station arranged downstream from the first feed station along the sealing path, for feeding the hollow body to the sealing head, so the hollow body is coupled to the wall gripped by the gripping device, and is retained by the retaining device.