Container Cap Manufacturing Tool With Retention Incisions
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Solution Overview
Problem
Conventional container caps are easily separated, lost, soiled, and contribute to environmental pollution due to complex designs requiring difficult manipulation to return to a closed state, and their manufacture is complex or expensive.
Innovation Solution
A cap design featuring incision lines that allow the cap to remain connected to the container, with connecting pins and portions that facilitate easy separation and reattachment, using injection molding or rotary cutting to form incision lines, ensuring the cap stays attached even after opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cap designs are used, then the cap can be easily manufactured, but the cap becomes separated, lost, and soiled after opening
Solution Approach 1:
The cap is divided into multiple segments including a cap body, connecting portion, and connecting pins. The connecting portion includes incision lines that allow the cap to be separated into functional segments while maintaining overall connectivity to the container through the pins.
Solution Approach 2:
The connecting pins are integrated within the cap structure, with the cap body nested over the connecting portion which contains the pins. This nested arrangement allows the cap to remain connected to the container through the pins while maintaining a compact, simple overall structure.
2Reliability
If complex connecting structures are used to keep cap attached, then cap retention is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The cap body, connecting portion, and connecting pins are formed as a single integrated component through injection molding. This merging of multiple functional elements into one piece simplifies manufacturing while maintaining the cap attachment function.
Solution Approach 2:
The connecting portion serves multiple functions: it provides structural connection between the cap body and container, contains the connecting pins for attachment, and includes incision lines for controlled separation. This multi-functionality reduces the need for separate components.
3Reliability
If complex designs are used to prevent cap separation, then cap retention is improved, but ease of operation deteriorates due to difficult manipulation
Solution Approach 1:
The cap design allows dynamic states: the cap body can rotate relative to the container, the connecting portion can flex, and the cap can be easily manipulated between open and closed positions. This dynamic design maintains secure attachment while enabling easy user operation.
Solution Approach 2:
The incision lines in the connecting portion are designed with specific geometric parameters that allow controlled flexibility. The depth, width, and pattern of these incisions are optimized to provide enough give for easy manipulation while maintaining sufficient strength for secure retention.
Data Source
AI summary
A tool for manufacturing a cap for a container comprises a blade set that includes a plurality of knives. The knives are configured to make incisions in a cap having a main body having a top plate and a circular sidewall. The top plate has a top surface, wherein two opposite sides of the circular sidewall circularly connect to each other, one periphery of the circular sidewall connects to one surface of the top plate forming a closed end, and the other periphery of the circular sidewall at the opposite side of the closed end forms an opened end and a ring member, which is located at the opened end of the main body. There is a first tab on the ring member and a second tab on the sidewall.