Blister Pack Machine Clean Area Contamination Prevention
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Solution Overview
Problem
High-speed blister pack machines integrated with box carton machines face contamination issues as bacteria from non-clean areas can enter clean areas through conveyor belts, compromising bioclean environments.
Innovation Solution
The design incorporates separate grid conveying devices in clean and non-clean areas, utilizing a height difference and air pressure differential to prevent bacterial contamination, along with a blister pack transferring manipulator and a sample collecting system for efficient conveying and inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single conveyor belt passes through both clean and non-clean areas, then continuous transmission is achieved, but bacteria from the non-clean area can enter the clean area causing contamination
Solution Approach 1:
The conveyor system is divided into two separate segments: a clean area grid conveying device and a non-clean area grid conveying device. These segments are physically separated by a partition wall, preventing bacteria from the non-clean area from contaminating the clean area while maintaining continuous transmission through height difference and transfer mechanisms.
Solution Approach 2:
A transfer manipulator acts as an intermediary device between the non-clean area conveyor and the clean area conveyor. It receives blister packs from the non-clean area, transfers them through a transfer chute, and deposits them onto the clean area conveyor, thereby mediating the connection between the two contaminated and clean zones without direct contact.
2Object-affected harmful factors
If the clean area and non-clean area are separated by a partition wall, then bacterial transmission is prevented, but continuous conveying is disrupted
Solution Approach 1:
The partition wall is designed with a transfer chute that extends from the non-clean area to the clean area. The transfer manipulator utilizes vertical movement (up and down motion) to transfer blister packs through the partition wall via the chute, adding a vertical dimension to the transfer process and maintaining continuous conveying despite the horizontal separation.
Solution Approach 2:
The transfer manipulator serves as an intermediary that bridges the gap created by the partition wall. It picks up blister packs from the non-clean area conveyor, moves them vertically through the transfer chute in the partition wall, and deposits them onto the clean area conveyor, thereby maintaining continuous material flow while preserving area separation.
3Object-affected harmful factors
If a transfer manipulator is used to move blister packs between conveyors, then contamination is prevented, but device complexity increases
Solution Approach 1:
The transfer manipulator is designed to automatically perform the transfer operation without manual intervention. It self-regulates its picking, lifting, and depositing actions based on the position of blister packs on the conveyors, reducing the need for additional control systems and operators while maintaining contamination prevention.
Solution Approach 2:
The transfer manipulator utilizes controlled changes in vertical position (up and down motion) to achieve transfer. By varying the vertical parameter of the manipulator arm, the system simplifies the transfer mechanism to primarily a single-degree-of-freedom movement, reducing mechanical complexity compared to multi-axis robotic systems.
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
Effectively prevents bacteria from entering the clean area through both conveyor belts and air, ensuring compliance with international hygiene standards for drug packaging by maintaining a sterile environment.
Implementation Method 1
The position of the clean area grid conveying device is higher than the position of the non-clean area grid conveying device
Implementation Method 2
The air pressure of the clean area is higher than the air pressure of the non-clean area
Data Source
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AI summary
The present disclosure provides a high-speed blister pack machine integrated with a box carton machine, which can effectively prevent the bacteria in the non-clean area from entering the clean area through the conveyor belt. The high-speed blister pack machine integrated with the box carton machine includes a blister packing machine and a box carton machine. The blister pack machine is connected to a discharging grid conveying device. The discharging grid conveying device includes a clean area grid conveying device located in the clean area and a non-clean area grid conveying device located in the non-clean area. The position of the clean area grid conveying device is higher than the position of the non-clean area grid conveying device. The front end of the clean area grid conveying device and the rear end of the non-clean area grid conveying device are connected to each other through a slideway to achieve a continuous transmission. In the high-speed blister pack machine integrated with the box carton machine, independent grid conveying devices are respectively arranged in the clean area and the non-clean area, and the material transition is realized by utilizing the height difference of the two grid conveying devices, thereby preventing the bacteria in the non-clean area from entering the clean area through the conveying belt.