Vertical Packaging Machine Gripper Drive Extraction

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Solution Overview

Problem

Traditional box-motion closure packaging machines have drive organs positioned on the sealing and cutting carriage, increasing the mass and slowing down the operating unit, which limits production capacity and increases costs due to reduced movement flexibility.

Innovation Solution

The vertical packaging machine employs two independent motors positioned on the base to control the main movements of the sealing grippers via screws, ensuring they maintain speed and distance from each other, allowing continuous operation without stopping, even with varying film speed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If drive organs are positioned on the sealing and cutting carriage, then the grippers can perform sealing and cutting operations, but the mass of the operating unit increases and movement flexibility is limited

Engineering Contradiction:
Improvegripper operation capabilityVSAvoidmass of operating unit
Core Design Contradiction:
Ease of operationVSWeight of moving object

Solution Approach 1:

The drive organs (motors and drive mechanisms) are extracted from the sealing and cutting carriage and repositioned to the fixed machine frame. This separation removes the weight burden from the moving carriage, enabling it to move more freely and quickly while still performing sealing and cutting operations through the transmitted mechanical force.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If drive organs are positioned on the sealing and cutting carriage, then sealing and cutting functions can be performed, but production capacity is reduced due to slower operation

Engineering Contradiction:
Improvesealing and cutting functionVSAvoidproduction capacity
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

By extracting the drive organs from the moving carriage and fixing them to the machine frame, the carriage is no longer overloaded with drive mechanisms. This enables faster and more flexible movement of the sealing and cutting carriage, directly increasing the production capacity while maintaining all necessary sealing and cutting functions.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If drive organs are positioned on the sealing and cutting carriage, then grippers can be controlled, but movement flexibility is drastically limited

Engineering Contradiction:
Improvegripper control capabilityVSAvoidmovement flexibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The drive organs are extracted from the moving carriage and repositioned to the fixed frame, allowing the carriage to move independently without being constrained by heavy drive mechanisms. This dramatically improves movement flexibility and adaptability, enabling the carriage to quickly adjust its position and speed while gripper control is maintained through the transmitted mechanical linkages.

Inventive Principle:
Principle #2Taking out (Extraction)

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 design simplifies production, reduces overburdening, and enhances production stage efficiency by maintaining gripper speed and distance, ensuring continuous operation and increased production capacity without increasing production costs.

Implementation Method 1

The main movements of the grippers are controlled by two screws operated by two motors

Methodology Applied
Scientific EffectScrew mechanism: Screw

Data Source

PatentUS9598188B2Vertical packaging machine for food products
Publication Date: 2017.03.21 PFM
  • US9598188B2 patent drawing
  • US9598188B2 patent drawing
  • US9598188B2 patent drawing

AI summary

A packaging machine comprising a transversal sealing unit (20) of bags, substantially consisting of a plate support (21) which comprises a series of additional supports and kinematic organs for the horizontal and vertical activation of grippers (22, 23), one internal and the other external, for the sealing and cutting of each bag, said machine comprising motors (25, 26), mounted on a fixed support (24), which cause the vertical movement of a main carriage (29) and of a gripper carriage (30) by means respectively of a screw shaft (27) and a screw shaft (28), said main carriage (29) supporting two pairs of horizontal and sliding parallel arms (33, 34), the internal first of which control the horizontal movement of the internal grippers (22) and the second control the horizontal movement of the external grippers (23), while the vertical movement of the grippers to follow the moving bag is achieved by the vertical movement of the main carriage (29).