Baling Press Feed Device Counter-Air Flow Protection
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Solution Overview
Problem
Baling technologies face significant challenges in preventing fiber contamination of the feed device and produced bales, as loose fibers tend to contaminate the feeder and bales, leading to issues like fiber sticking and destruction, especially during fiber type changes.
Innovation Solution
A counter-air flow is directed against fiber flight to prevent contamination, and a perforated plate feed element allows air exchange, preventing fiber access to the drive and guide areas. The feed device includes an overpressure chamber with passage openings for the drive and guide elements, creating a fiber-free protective space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a feed device is used to transport loose fiber material, then the fiber material can be fed into the baling press, but fibers contaminate the feed device and produced bales
Solution Approach 1:
The housing is divided into a drive area and a feed area by a partition wall with a passage opening. This segmentation isolates the drive components from direct fiber contact while allowing necessary mechanical passage, thereby preventing contamination while maintaining feeding functionality.
Solution Approach 2:
A comb-like seal is introduced as an intermediary element at the passage opening. This seal acts as a barrier that allows the drive rod to pass through while blocking fibers from entering the drive area, effectively mediating between the feed area and drive area to prevent contamination.
2Object-affected harmful factors
If the drive area is sealed to protect from fiber contamination, then fiber contamination is reduced, but drive components cannot access the feed area
Solution Approach 1:
The partition wall creates a segmented structure with a controlled passage opening. This allows the drive area to be sealed off from fiber contamination while still permitting drive rods to access the feed area through the designated passage, resolving the contradiction between protection and access.
Solution Approach 2:
The seal is applied locally at the passage opening rather than sealing the entire partition. This localized sealing approach protects against fiber contamination at the critical interface while maintaining necessary mechanical access for drive components through the passage opening.
3Device complexity
If fibers are allowed to enter the drive area, then the feed device structure is simpler, but fibers stick to and contaminate the feed device and bales
Solution Approach 1:
By segmenting the housing into separate drive and feed areas with a partition wall, the invention prevents fibers from reaching drive components. This simple structural division effectively eliminates fiber sticking and contamination issues without adding complex mechanisms.
Solution Approach 2:
The harmful factor (fibers) is extracted from the drive area by introducing a partition wall and seal. This removes the source of contamination from the sensitive drive component area, preventing sticking and contamination while maintaining overall system simplicity.
4Object-affected harmful factors
If a partition wall with passage opening is introduced to separate drive and feed areas, then fiber contamination is prevented, but the device structure becomes more complex
Solution Approach 1:
The partition wall with passage opening provides an effective segmentation solution that prevents fiber contamination. While it adds structural elements, the design remains relatively simple compared to alternative contamination prevention methods, achieving protection with minimal complexity increase.
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
This solution effectively prevents fiber contamination of the feed device and bales by blowing away fibers with a counter-air flow and ensuring air pressure equalization, reducing fiber sticking and destruction, and maintaining a clean environment for the drive and guide components.
Implementation Method 1
a protective device (3) which protects the drive and, if necessary, guide area of the feed device (4), in particular its bearing (19), from flying fibers with a counter-air flow (27)
Implementation Method 2
The feed element (14, 15) is designed as a perforated plate and has air-permeable through-holes in the plate surface. These allow for air exchange and pressure equalization in the areas in front of and behind the perforated plate
Data Source
Figure 1
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AI summary
The invention relates to a feed device for use on a baling press (1) and for a loose fiber material (2) to be compressed, wherein the feed device (4) has a movable and driven and possibly guided feed element (14, 15). The feed device (4) is assigned a protection device (3), which protects the drive area and possibly the guiding area of the feed device (4), in particular the bearing (19) thereof, against airborne fibers by using an opposing airstream (27).