Rotatable Grippers for Group Container Feeding

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Solution Overview

Problem

Existing container feeding systems face challenges in efficiently feeding containers in groups to cycled treatment machines, particularly when using continuous supply methods, as they often require interruptions and are not adaptable to uninterrupted transport movements.

Innovation Solution

A device with rotatable or pivotable grippers is used to pick up and transfer containers from a continuous stream, allowing simultaneous group pickup and adaptation to the transport movement, ensuring uninterrupted operation and efficient feeding to cycled processing machines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If containers are continuously fed via a rotary feeder, then the transport flow is uninterrupted, but interrupting the inlet device to pick up containers in groups is very disadvantageous and reduces productivity

Engineering Contradiction:
Improvecontinuous transport operationVSAvoidgroup feeding efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The inlet device is divided into a rotary feeder section for continuous supply and a linear transport section for group pickup. The grippers are segmented into multiple units that can independently pick up containers at different positions along the linear section, allowing group formation without interrupting the overall continuous feed from the rotary feeder.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A linear transport section acts as an intermediary between the rotary feeder and the group pickup mechanism. Containers are first continuously fed by the rotary feeder onto the linear section, where they are then picked up in groups by the grippers. This intermediary section allows the continuous flow from the rotary feeder to be converted into grouped delivery without interrupting either process.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If grippers are used to pick up containers from a moving stream, then group feeding is achieved, but the grippers must be stationary or move in a fixed pattern, making adaptation to continuous transport difficult

Engineering Contradiction:
Improveadaptation to transport movementVSAvoidgripper mechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The grippers are designed with rotational freedom about a vertical axis, allowing them to dynamically adjust their orientation and position as they move along the linear transport section. This dynamic capability enables the grippers to adapt to the continuous movement of containers from the rotary feeder while maintaining their gripping function, resolving the contradiction between adaptability and complexity.

Inventive Principle:
Principle #15Dynamics

3Productivity

If the inlet device is interrupted to feed containers in groups, then group processing is enabled, but the continuous transport flow is broken, causing loss of time and reduced efficiency

Engineering Contradiction:
Improvegroup processing capabilityVSAvoidinterruption time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The system maintains continuous useful action by keeping the rotary feeder operating without interruption while the linear transport section and grippers handle the group formation and transfer. The containers continue to flow continuously through the system, and the group pickup process occurs alongside the continuous feed rather than interrupting it, thereby eliminating idle time and maintaining productivity.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP3713861B1Device and method for grouped feeding of containers to a cyclical processing machine
Publication Date: 2023.08.02 KHS GMBH
  • EP3713861B1 patent drawingFigure 1
  • EP3713861B1 patent drawingFigure 2
  • EP3713861B1 patent drawingFigure 3

AI summary

The invention relates to a device for the grouped take-up and feeding of a group of containers (BG) to a cyclical processing machine, comprising a cyclical take-up system for taking up the group of containers (BG). The device comprises an intake system in the form of an endless conveyor section (TS) and a supply system. The intake system (2) has a linear conveyor section portion and the intake system is designed for suspended conveying of the containers along the conveyor section (TS). A transfer apparatus is provided in a transition region between the intake system and the take-up system, the transfer apparatus comprising a plurality of grippers for taking-up a group of containers (BG) from the continuous stream of containers in the region of the conveyor section portion (LTS) of the intake system, and being suitable for feeding the taken-up group of containers (BG) to the cyclical take-up system. The grippers of the transfer apparatus are designed, particularly advantageously, to rotate or pivot about a vertical axis of rotation (DA), in order to take up the containers (B) of the group of containers (BG) that are moved along the conveyor section portion (LTS).