Gear Amplifier for Big Bag Handling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing automated handling systems for large sacks require high actuation forces, leading to the use of large and heavy components, and are not suitable for handling by belt loops, posing challenges in efficiency and maintenance.
Innovation Solution
A receiving arrangement with a suspension device featuring an actuator, gear, and holding device that converts actuation force into a higher holding force, using pneumatic or electrical actuators with a gear for power amplification, and incorporating a locking mechanism and clamping fingers with eccentric or wedge effects to enhance holding power without excessive stress on the actuator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If high actuation forces are used to hold large sacks, then the holding force is sufficient, but the actuator and components become large and heavy
Solution Approach 1:
A gear mechanism is introduced as an intermediary between the actuator and the holding device. The gear amplifies the actuation force to generate sufficient holding force, allowing the use of smaller, lighter actuators while maintaining the required holding capability for large sacks
Solution Approach 2:
The patent replaces direct mechanical force transmission with a gear-based mechanical advantage system. This substitution allows force amplification without proportionally increasing the size and weight of the actuator components
2Force
If high actuation forces are applied, then the holding force is sufficient, but the actuator experiences high stress and wear
Solution Approach 1:
The gear acts as a force-amplifying intermediary that reduces the actuation force required from the actuator. By converting actuation force into amplified holding force through the gear mechanism, the actuator operates under lower stress conditions, reducing wear and improving reliability
Solution Approach 2:
The locking mechanism provides self-locking functionality that maintains the holding force without continuous actuator engagement. Once the gear mechanism establishes the holding position, the system maintains itself without additional actuator force, reducing cyclic stress on the actuator
3Force
If mechanical or pneumatic clamping jaws are used to fix strap loops, then the holding is secure, but the device complexity and component size increase
Solution Approach 1:
The patent extracts the force amplification function from the clamping mechanism itself and places it in a separate gear mechanism. This separation allows the clamping jaws to be simpler in design while the gear handles the force multiplication, reducing overall device complexity
Solution Approach 2:
The gear mechanism serves multiple functions: it amplifies force, controls the clamping action timing, and integrates with the actuator system. This multi-functionality reduces the need for separate complex control mechanisms, simplifying the overall device
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 solution allows for efficient and secure handling of large sacks with reduced actuator stress, enabling automated filling and handling processes while minimizing wear and tear, and allowing for gentle material handling and easy adaptation to different conditions.
Implementation Method 1
a gear acts between the actuator and the holding device, which gear converts the actuating force applied by the actuator into a holding force acting on the holding device, which is greater than the actuating force applied
Implementation Method 2
The locking mechanism then locks the holding device in this position while maintaining the holding force, while the actuator remains free of forces
Implementation Method 3
Knee lever mechanisms can be used as a latching mechanism, which are adjusted via their latching or dead center and then apply the holding force in a self-locking manner
Implementation Method 4
The suspension element can then be fixed or clamped in a non-positive and/or positive manner (e.g. via a thickening in the corner loops) between these active surfaces
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The frame has a hanging device (150) for holding a corner loop, which is arranged on a big bag. The hanging device includes a holding device (153), which is displaceable between holding and releasing positions. A power amplifying gear (152) acts between an actuator (151) i.e. pneumatic cylinder unit, and the holding device. The gear transforms control force applied by the actuator into holding force acting on the holding device. The holding force is larger than the control force. A knee lever mechanism (152a) fixes the holding device in the holding position.