Case Loader Gravity Alignment and Back Pressure Management
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Solution Overview
Problem
Existing case loading systems face challenges in efficiently loading multiple articles into open crates, particularly in aligning and guiding containers of varying sizes into rows and columns, and in managing back pressure from continuously advancing cases on the conveyor.
Innovation Solution
A case loader system comprising a frame, container station, container guide, and release mechanism, with adjustable components and a container guide alignment mechanism, that uses gravity to load containers into cases positioned at an incline, and includes a case assist device to alleviate back pressure and ensure accurate alignment and loading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If containers of varying sizes are loaded into cases using a conventional conveyor system, then the loading process can be automated, but alignment precision and positioning accuracy deteriorate
Solution Approach 1:
A container guide is introduced as an intermediary component between the conveyor and the case. The guide includes a guide surface that contacts the container and a movable member that can adjust its position. This intermediary mechanism ensures precise alignment and positioning of containers of varying sizes into the case, while maintaining automated operation through the adjustable nature of the movable member.
2Productivity
If cases are continuously advanced on the conveyor, then productivity increases, but back pressure from advancing cases increases
Solution Approach 1:
The back pressure problem is addressed by extracting or removing the source of the pressure. The case assist device includes a movable member that can move in response to back pressure, effectively separating the pressure buildup from the loading operation. This allows continuous advancement of cases at high speed while preventing excessive back pressure from accumulating.
3Device complexity
If a fixed container guide is used, then the structure is simple, but adaptability to containers of varying sizes decreases
Solution Approach 1:
The container guide transitions from a fixed structure to a dynamic one with a movable member. This movable member can adjust its position along the guide surface to accommodate containers of varying sizes. The dynamic adjustment capability maintains structural simplicity while significantly improving adaptability, allowing the same guide mechanism to handle different container dimensions.
4Productivity
If containers are loaded at high speed, then productivity increases, but placement precision and reliability decrease
Solution Approach 1:
The container guide performs preliminary alignment and positioning action on containers before they are released into the case. The guide surface and movable member work together to pre-position containers accurately, ensuring that even at high loading speeds, the placement precision and reliability are maintained. This preliminary action occurs continuously as containers move through the guide.
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 system enables efficient loading of containers of different sizes into rows and columns within cases, while the case assist device helps in overcoming back pressure issues, ensuring reliable and precise container placement and reducing the risk of case damage during the loading process.
Implementation Method 1
a container guide positioned under the container station, the container guide being sized and shaped to gravity load containers, received within the container station and released with the container release, into a case
Data Source
AI summary
A case loader is fed containers by a container conveyor. The containers then rest on a hinged ledge. When the number of containers required to fill the case is present in the loader, a first sensor is activated. The cases are conveyed to the loader below and beside the position of the containers. The cases are tipped up and, when in place, they activate the second sensor. When both sensors are activated, the containers drop and fall into a chute (directing the containers from the loading station and into the cases. When the containers have dropped, the ledge is reset to receive the next group of containers. The force of the containers tips the case back onto the conveyor and it is carried away. An optional device may assist in case tipping. An optional device may move case facing edge of each chute.