Medicine Mixer Assembly Table for Automated Medical-Grade Joining

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Solution Overview

Problem

Existing assembly equipment for medicine mixers is complex and cannot automatically assemble the mixers, limiting industrialization and use due to the need for manual assembly and failure to meet medical criteria.

Innovation Solution

A machine with a rotatable dividing table and various mounting devices (cup, plug, clip, needle, coverplate, and soldering) that automatically assembles the medicine mixer components, including a dripping device for quantitative liquid addition, using a PLC-controlled system with oscillating disks and tracks for efficient part conveyance and assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual assembly is used for medicine mixer, then flexibility and adaptability are maintained, but working efficiency is low and productivity is limited

Engineering Contradiction:
Improveworking efficiencyVSAvoidassembly equipment complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The assembly machine divides the medicine mixer assembly process into multiple independent workstations (mounting devices for cup, plug, clip, needle, coverplate, and soldering) arranged around a rotatable dividing table. Each workstation performs a specific assembly operation, allowing parallel processing and improving overall productivity while keeping each individual station relatively simple.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The rotatable dividing table serves multiple functions: it positions components at different workstations, enables sequential assembly operations, and facilitates automated material handling. This single multi-functional device replaces what would otherwise require multiple separate assembly machines, improving productivity without proportionally increasing device complexity.

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

2Productivity

If automated assembly equipment is used, then productivity and working efficiency improve, but device complexity increases and existing equipment cannot assemble medicine mixer

Engineering Contradiction:
Improveassembly efficiencyVSAvoidassembly equipment structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent combines multiple mounting devices (for cup, plug, clip, needle, coverplate, and soldering) and a rotatable dividing table into a single integrated assembly machine. This merging of functions into one coordinated system achieves high automated assembly efficiency while avoiding the need for multiple separate complex devices.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The rotatable dividing table provides dynamic positioning, allowing the assembly machine to automatically transition between different workstations and adapt to various assembly sequences. This dynamic mechanism enables flexible automated assembly without requiring rigid, overly complex fixed positioning systems.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If manual assembly is used, then device complexity is low, but manufacturing precision and quality control do not meet medical criteria

Engineering Contradiction:
Improveassembly precisionVSAvoidassembly equipment
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The automated assembly machine performs precise positioning and assembly operations without human intervention. The mounting devices automatically align and secure components (cup, plug, clip, needle, coverplate) with high precision, ensuring consistent quality that meets medical criteria while eliminating manual assembly errors.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical assembly with automated mounting devices that use controlled mechanical movements for precise component placement. The soldering device provides automated thermal processing with consistent parameters, ensuring high manufacturing precision and quality control without the variability of manual operations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Productivity

If automated assembly with multiple mounting devices is implemented, then productivity improves, but the number of components and device complexity increase

Engineering Contradiction:
Improveassembly outputVSAvoidnumber of components
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The assembly machine segments the assembly process into distinct operations (mounting cup, plug, clip, needle, coverplate, soldering) performed at separate workstations around the dividing table. This segmentation allows each component to be handled by a specialized mounting device, improving assembly output while organizing the complexity into manageable modular units.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3482871B1Assembling machine for assembling a medicine mixer
Publication Date: 2021.12.15 CHONGQING LUMMY PHARMA
  • EP3482871B1 patent drawingFigure 1a~1e
  • EP3482871B1 patent drawingFigure 2~3
  • EP3482871B1 patent drawingFigure 4~6

AI summary

The present invention discloses an assembly machine for a medicine mixer, comprising a rack, a medicine mixing cup mounting device, a rubber plug mounting device, an elastic clip mounting device, a puncture needle mounting device, a coverplate mounting device, a soldering device and an output device. The medicine mixing cup mounting device, the rubber plug mounting device, the elastic clip mounting device, the puncture needle mounting device, the coverplate mounting device, the soldering device and the output device are arranged annularly along an outer circumference of the dividing table successively. The assembly machine for a medicine mixer according to the present invention is controlled by PLC. A feeding system consisting of a plurality of groups of oscillating disks and tracks conveys each part at an interface of the medicine mixer to given positions of the equipment; each part is conveyed and assembled on the dividing table driven by a servo motor or a pneumatic dividing table or a cam indexing unit through a machine hand, a vacuum suction head or a fetching device, which effectively improves the working efficiency, saves manpower resources and ensures product assembling qualities.