Sliding Drum Stepped Trough Webs Tobacco Transfer
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Solution Overview
Problem
In the tobacco processing industry, existing conveyor drums face challenges in efficiently transferring rod-shaped articles like filter rods and filter pieces from one drum to another without the need for additional devices like combing mechanisms, ensuring safe and precise alignment and transfer.
Innovation Solution
A sliding drum with receiving troughs arranged in a row, featuring uninterrupted trough webs with stepped areas that allow rod-shaped articles to be displaced longitudinally, and include suction holes and beveled edges for secure transfer, eliminating the need for external combing devices by engaging with downstream conveyor drum elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional conveyor drums are used to transfer rod-shaped articles, then the articles can be transported, but additional combing devices are required to ensure safe and precise alignment and transfer
Solution Approach 1:
The conveyor drum's trough ribs perform the alignment and combing function themselves through their stepped configuration, eliminating the need for separate combing devices. The trough ribs guide and align the rod-shaped articles during transfer, making the system self-sufficient for this function.
Solution Approach 2:
The trough ribs have different heights in different sections (stepped configuration), with the second section having a lower height than the first section. This local variation in geometry creates the alignment function at specific locations along the drum, enabling precise transfer without additional devices.
2Manufacturing precision
If additional combing devices are used to ensure safe transfer, then alignment precision is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The alignment and combing function is merged into the existing conveyor drum structure through the stepped trough ribs. Instead of adding separate alignment devices, the drum itself performs both conveying and alignment functions, simplifying the overall system while maintaining precision.
Solution Approach 2:
The stepped trough ribs create localized geometric features that provide alignment precision only where needed during the transfer process, rather than requiring precision throughout the entire drum structure or additional precision devices.
3Productivity
If the trough ribs have uniform height, then the structure is simpler, but the transfer of rod-shaped articles to subsequent conveyor drums is less efficient
Solution Approach 1:
The trough ribs have different heights in different sections, with the second section being lower than the first section. This local geometric variation enables the rod-shaped articles to be properly positioned and transferred to the subsequent conveyor drum, improving transfer efficiency without requiring complex additional mechanisms.
Solution Approach 2:
The stepped configuration of the trough ribs dynamically adapts to the transfer process, where the first higher section guides the articles and the second lower section facilitates their release and alignment with the receiving drum, optimizing transfer efficiency throughout the rotation cycle.
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
Facilitates safe and precise transfer of rod-shaped articles from the sliding drum to subsequent conveyor drums, ensuring reliable alignment and transfer without the requirement for additional combing devices, enhancing the efficiency of the tobacco processing machinery.
Implementation Method 1
The sliding drum (20) has suction holes (44) in the area of the recessed trough rib sections (36), wherein, after the sliding process of the rod-shaped articles in the receiving recesses (30), negative pressure is applied through the suction holes (44), whereby the displaced rod-shaped articles are held in a transfer area of the sliding drum (20).
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3b
AI summary
The invention relates inter alia to a sliding drum (20) for the tobacco processing industry with receiving recesses (30) arranged one behind the other in a row in the circumferential direction of the sliding drum (20) for rod-shaped articles (FS) for the tobacco processing industry, in particular filter rods and/or filter pieces and/or segmented products.The sliding drum (20) is rotatable about an axis of rotation (R), wherein the receiving troughs (30) each have a trough base (32), wherein the trough base (32) of the receiving troughs (30) is bounded by a trough web (34) leading in the conveying direction of the sliding drum (20) and by a trough web (34) trailing in the conveying direction of the sliding drum (20), wherein the trough webs (34) extend parallel to the axis of rotation (R) of the sliding drum (20) and wherein the rod-shaped articles (FS) are displaceable or are displaced in the longitudinal axial direction along the trough webs (34) during the rotation of the sliding drum (20) in the receiving troughs (30), wherein the trough webs (34) have at least one height-stepped trough web section (36) in the longitudinal direction.