Rotatable Trimmer Spindle Mounts for Container Diameter Changeover

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Solution Overview

Problem

Existing container trimming machines require extensive adjustments and changes in components, including gears and blades, to accommodate different container diameters, leading to increased time, cost, and complexity in the change-over process.

Innovation Solution

A trimmer device with a circular inner and outer mounting block system, where the inner and outer spindles are positioned through respective bores, allowing for adjustable rotation to accommodate varying container diameters without changing gears, and using a cartridge assembly for easy adjustment and alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing trimming machines use fixed mounting blocks for spindles, then the machine can maintain stable operation, but it requires extensive adjustments and component changes to accommodate different container diameters

Engineering Contradiction:
Improveability to accommodate different container diametersVSAvoidnumber of components to adjust or replace
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The mounting blocks are made rotatable about the turret shaft, allowing dynamic adjustment of the distance between inner and outer spindles. This rotational capability enables the same mounting blocks to accommodate multiple container diameters without requiring physical changes to the components themselves.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mounting blocks serve multiple functions: they provide stable support for spindles during operation and enable diameter adjustment through rotation. This multi-functionality eliminates the need for separate adjustment mechanisms or multiple sets of mounting blocks for different container sizes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Manufacturing precision

If existing trimming machines require precise blade adjustments for different diameters, then trimming precision can be maintained, but the change-over process becomes time-consuming and complex

Engineering Contradiction:
Improveblade positioning precisionVSAvoidchange-over time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The rotatable mounting blocks allow rapid repositioning of spindles and blades by simply rotating the blocks to the appropriate position, eliminating time-consuming manual adjustment procedures while maintaining precise blade positioning relative to the container.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Multiple mounting block positions are pre-configured to correspond to different container diameters. Before production of a specific container size, the appropriate mounting block position is pre-set, allowing immediate operation without during-production adjustments.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If existing trimming machines use multiple gears to drive components at different diameters, then operational reliability is maintained, but the number of parts increases and change-over becomes more difficult

Engineering Contradiction:
Improveoperational reliabilityVSAvoidnumber of gears and drive components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The rotatable mounting blocks enable a single gear system to serve multiple container diameter applications. By changing the radial position of the mounting blocks, the same gears can effectively drive spindles for different diameter containers without requiring gear replacement or reconfiguration.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The dynamic repositioning of mounting blocks changes the effective leverage and drive geometry without requiring physical changes to the gear train. This maintains operational reliability through consistent gear engagement while adapting to different container sizes.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11819933B2Method and apparatus for trimming a container
Publication Date: 2023.11.21 BELVAC PRODUCTION MACHINERY INC
  • US11819933B2 patent drawing
  • US11819933B2 patent drawing
  • US11819933B2 patent drawing

AI summary

A trimmer device includes an inner mounting block having a first central aperture for receiving a turret shaft. The inner mounting block has an inner bore. The device includes an outer mounting block having a second central aperture for receiving the turret shaft. The outer mounting block has at least one outer bore. The device includes an inner trimmer spindle positioned through the inner bore. A first end of the inner trimmer spindle includes a pilot having an inner spindle blade. The device further includes an outer trimmer spindle positioned through the outer bore. The outer trimmer spindle includes an outer spindle blade positioned at a first end. At least one of the inner mounting block or the outer mounting block is rotatable about the turret shaft to adjust for a diameter of an article such that the article is positioned between the inner and outer spindle blades for trimming.