Bag Lining Machine Articulated Gripping Device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing equipment for automating the lining of packaging cartons with stacked bags is costly due to the need for fragile zones on the bags, which increases manufacturing costs and does not optimize the available volume for product packaging.
Innovation Solution
A machine with an articulated gripping device that performs horizontal and vertical movements to separate and insert bags into cartons without pre-weakening, combined with a shaper that presses the bag against the carton walls to ensure optimal volume utilization and precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fragile zones are created on the bags to enable automated release, then automated bag release is improved, but manufacturing cost increases
Solution Approach 1:
The invention extracts the fragile zone requirement from the bag design by transferring the separation function to the gripping device itself. The articulated gripping device with its movable arm and suction cup performs the separation action externally, eliminating the need for pre-created fragile zones on the bags while maintaining automated operation.
Solution Approach 2:
The invention replaces the mechanical fragile zone structure with a pneumatic-suction-based gripping system. Instead of relying on pre-weakened bag structures, the system uses controlled suction and mechanical articulation to achieve bag release, substituting a more complex gripping mechanism for a simpler bag design.
2Extent of automation
If bags are stacked on support rods for automated processing, then automation is improved, but bag separation becomes difficult without fragile zones
Solution Approach 1:
The invention introduces dynamic movement to the gripping device, specifically a movable arm that can articulate between different positions. This dynamic capability allows the device to approach the bag stack, engage the top bag, and perform separation movements without requiring static fragile zones, thereby simplifying the bag design while maintaining automation.
Solution Approach 2:
The articulated gripping device acts as an intermediary between the support rods and the bags. Instead of directly manipulating the bags from the support rod configuration, the movable gripping device with suction cup mediates the separation process, enabling automated processing without requiring complex bag structures or direct manipulation of the support rod system.
3Ease of manufacture
If the bag insertion process is simplified, then manufacturing cost is reduced, but positioning precision may worsen
Solution Approach 1:
The invention incorporates feedback mechanisms in the form of sensors that detect the presence and position of bags and cartons. This feedback allows the control system to adjust the gripping force, movement speed, and positioning of the articulated device, ensuring precise bag placement even though the bag design itself is simplified without fragile zones.
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 allows for reproducible and precise bag placement within cartons, optimizing the packaging volume and reducing costs by eliminating the need for pre-weakened zones, thus enhancing the efficiency and cost-effectiveness of product packaging.
Implementation Method 1
The first translational movement carried out by the articulated gripping device results from suction, by conventional means which said gripping device comprises, of the front sheet of the bag to be gripped
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The machine according to the invention lines cardboard boxes (2) traveling on a conveyor (1) with plastic bags (3) stored stacked in a bag magazine. The bags are threaded onto support rods through suspension loops located near their upper edge. The machine comprises an articulated device (4) for gripping each bag individually, as well as a former (5) for placing each bag individually into the boxes. It uses simple and inexpensive bags with no other weak points than those resulting from the presence of their suspension loops.