Bag-Making Machine Receiving Member Positioning
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Solution Overview
Problem
Existing bag-making and packaging machines face challenges in preventing damage to articles and packaging material when articles are dropped multiple times, as the catcher can pinch the articles inside the packaging material, causing damage to both the articles and the material.
Innovation Solution
A bag-making and packaging machine with a transverse sealing mechanism, a receiving member, and a control unit that switches between two modes to adjust the receiving member's position relative to the packaging material, ensuring the articles are not pinched during multiple drops, thereby preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiving member contacts the outer surface of the packaging material at a fixed height position to receive articles, then the articles can be received effectively, but the articles may be pinched by the receiving member when dropped multiple times, causing damage to both articles and packaging material
Solution Approach 1:
The receiving member is made movable in the vertical direction, allowing it to dynamically adjust its position between contacting and non-contacting states with the packaging material. This dynamic adjustment prevents pinching damage while maintaining effective article reception capability.
Solution Approach 2:
The height position parameter of the receiving member is changed between two modes: first mode where it contacts the outer surface above the seal portion, and second mode where it contacts the seal portion. This parameter change allows the system to adapt to different operational requirements and avoid harmful pinching effects.
2Reliability
If the receiving member is positioned to receive articles effectively, then article reception is reliable, but the packaging material may sustain damage from repeated contact with the receiving member
Solution Approach 1:
The receiving member's vertical movement allows it to alternately contact the outer surface and the seal portion, distributing the mechanical stress and preventing concentrated damage to the packaging material while maintaining reliable article reception.
Solution Approach 2:
The control unit switches between first mode and second mode in a periodic manner, creating alternating contact patterns that prevent continuous stress on the same location of the packaging material, thereby preserving material integrity.
3Reliability
If a shutter is installed above the transverse sealing mechanism to catch articles, then damage to articles and packaging material can be prevented, but the cost of retrofitting existing machines increases significantly
Solution Approach 1:
The receiving member is integrated with the transverse sealing mechanism, allowing it to serve dual functions: sealing the packaging material and receiving/catching articles. This eliminates the need for a separate shutter component, reducing retrofitting costs while maintaining damage prevention capability.
Solution Approach 2:
The receiving member and transverse sealing mechanism are merged into a single integrated unit, combining the sealing function and article reception function. This consolidation eliminates the need for additional components like shutters, thereby reducing manufacturing and retrofitting costs.
Data Source
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AI summary
A bag-making and packaging machine (10) packages, in bags made from a film, articles discharged and dropped from an article discharge apparatus (20). The bag-making and packaging machine has a transverse sealing mechanism (15), a receiving member (17), a vertical moving mechanism (55), and a control unit (16). The transverse sealing mechanism (15) transversely seals a film tube. The receiving member (17) contacts an outer surface of the film tube above the transverse sealing mechanism and receives the articles A that drop through the inside of the film tube. The vertical moving mechanism (55) moves the transverse sealing mechanism and the receiving member in the up and down direction. The control unit (16) switches between a first mode and a second mode. In the second mode, the receiving member contacts the outer surface of the film tube at a lower height position than in the first mode.