Rotary Platform Wrapping Machine Synchronous Disc Rotation

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Solution Overview

Problem

Existing wrapping machines with a rotary platform and vertical guide upright have a long operating cycle due to fixed guide uprights, limiting productivity.

Innovation Solution

A wrapping machine design featuring a rotary platform with a feeding disc and gantry system where the disc and platform rotate in opposite directions, facilitated by an electric motor and mechanical transmission, allowing for a shorter wrapping cycle and increased productivity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the guide upright is fixed and the rotary platform rotates at threshold speed, then safety standards are met, but the operating cycle becomes long and productivity is reduced

Engineering Contradiction:
ImprovesafetyVSAvoidproductivity
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

Instead of rotating the guide upright in the opposite direction to the rotary platform as in prior art, this invention inverts the approach by making both the guide upright and the feeding disc rotate in the same direction. This allows the wrapping band to be fed effectively while enabling higher rotation speeds that meet safety standards, thereby reducing the operating cycle and improving productivity

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The invention transitions from a static fixed guide upright to a dynamic rotating guide upright that rotates synchronously with the feeding disc. This dynamic configuration allows the system to operate at higher speeds while maintaining safety, as the rotating guide upright can feed the wrapping band more efficiently during the wrapping operation

Inventive Principle:
Principle #15Dynamics

2Productivity

If the guide upright rotates in the opposite direction to the rotary platform, then productivity is improved, but the device complexity increases

Engineering Contradiction:
ImproveproductivityVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The invention combines the rotation functions of the feeding disc and the guide upright into a single synchronous rotation system. Both components rotate in the same direction at the same speed, which simplifies the transmission mechanism compared to opposing rotations while still achieving improved productivity through faster operating cycles

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If the operating cycle is shortened to increase productivity, then productivity is improved, but the wrapping precision may be compromised

Engineering Contradiction:
ImproveproductivityVSAvoidwrapping precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The invention employs a control unit that receives signals from sensors to detect the position and rotation of the rotary platform and feeding disc. This feedback mechanism ensures that even at higher rotation speeds, the wrapping band is applied with precise control, maintaining wrapping precision while achieving shorter operating cycles and higher productivity

Inventive Principle:
Principle #23Feedback

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 achieves a shorter operating cycle and higher productivity by synchronizing the rotation of the disc and platform in opposite directions, reducing the time needed to wrap each product and eliminating the need for electrical power supply cables.

Implementation Method 1

mechanical transmission, allowing for a shorter wrapping cycle

Methodology Applied
Scientific EffectMechanical transmission: Gear

Data Source

PatentEP3871986B1Wrapping machine with a rotary platform
Publication Date: 2023.09.13 MITEC SRL
  • EP3871986B1 patent drawingFigure 1
  • EP3871986B1 patent drawingFigure 2
  • EP3871986B1 patent drawingFigure 3

AI summary

A wrapping machine with a rotary platform (7) to wrap products (2) with at least one band of wrapping material (3) has a base (4), a rotary platform (7), which defines a support surface (P) for at least one product (2) and is mounted so as to rotate around a rotation axis (8), and a support slide (36), which is configured to receive and hold a spool (37) of the band of wrapping material (3) and is movable along a guide upright (34), which is mounted so as to rotate around the rotation axis (8) with a rotation direction that is contrary to a rotation direction of the rotary platform (7).