Bottle Blowing Machine Single Rotation Shaft Mechanism

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Solution Overview

Problem

Conventional bottle blowing machines are complex and bulky, making them inconvenient to operate and costly, with multiple mechanisms that are not efficiently integrated for simultaneous operation.

Innovation Solution

A bottle blowing machine design featuring a rotation shaft that drives three assemblies simultaneously for mould closing, elevating, and locking, simplifying the structure and operation by using a fixed mould plate, a rotatable moving mould plate, an elevating assembly with a guiding groove, and a locking mechanism with a swing member and elastic member for efficient cavity formation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If conventional separate mechanisms are used for mould opening/closing, elevating, and locking, then each function can be performed independently, but the device becomes bulky and complex in structure

Engineering Contradiction:
Improvestructure complexityVSAvoidoperational efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent combines three separate mechanisms (mould opening/closing, elevating, and locking) into a single integrated mechanism driven by one air cylinder. The moving mould plate is designed with an L-shape configuration where one end connects to the air cylinder for opening/closing motion, while the other end incorporates the elevating and locking functions through integrated components like the elevating bracket and locking blocks, eliminating the need for separate mechanisms and reducing overall structural complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single air cylinder-driven moving mould plate performs multiple functions simultaneously: it opens and closes the mould, elevates the bottom mould through the elevating bracket and cam mechanism, and locks the bottom mould in position through the locking mechanism. This multi-functional design allows one component to replace three separate mechanisms, simplifying the device structure while maintaining all necessary operational capabilities

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

2Ease of operation

If multiple separate mechanisms are used for mould operations, then each operation can be controlled independently, but the machine becomes inconvenient to operate and high-cost

Engineering Contradiction:
Improveoperational convenienceVSAvoidmechanism quantity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges three separate control mechanisms into a single air cylinder that drives all mould operations. The moving mould plate translates the linear motion from the air cylinder into coordinated movements for opening/closing, elevating, and locking functions, reducing the number of control components and simplifying operation

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated mechanism automatically coordinates the timing and sequence of mould opening, elevating, and locking operations through the mechanical linkage design. The L-shaped moving mould plate and associated components self-regulate the operational sequence without requiring complex external control systems, making the machine easier to operate while reducing mechanism quantity

Inventive Principle:
Principle #25Self-service

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 design results in a simpler, more efficient bottle blowing machine with simultaneous operation of mould closing, elevating, and locking steps, improving the overall process efficiency and reducing operational complexity and costs.

Implementation Method 1

a power source for driving the rotation of the rotation shaft

Methodology Applied
Scientific EffectRotation:

Implementation Method 2

a guiding groove is opened on the protrusion, and the sliding block is slidably inserted into the guiding groove, in the course of rotation of the rotation shaft, the contact position of the guiding groove with the sliding block rises or descends

Methodology Applied
Scientific EffectGuiding:

Implementation Method 3

A spring is sheathed on the guide rod... the elevating bracket is uplifted under the effect of the spring

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 4

The bottom mould cam is located above the roll wheel and contacts the roll wheel. The guide rod is mounted on a support plate laterally extending on the top of the elevating bracket and. The spring is located between the support plate and the machine frame. The bottom mould elevating mechanism presses the elevating bracket by means of the bottom mould cam such that the bottom mould descends

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 5

the locking part contacts against the bottom mould such that the bottom mould is separated from the machine frame

Methodology Applied
Scientific EffectMechanical Contact: Mechanical Force

Data Source

PatentEP2977171B1Bottle blowing machine
Publication Date: 2017.07.12 JIANGSU NEWAMSTAR PACKAGING MACHINERY
  • EP2977171B1 patent drawingFigure 1
  • EP2977171B1 patent drawingFigure 2
  • EP2977171B1 patent drawingFigure 3

AI summary

A bottle blowing machine is provided in the invention. The bottle blowing machine comprises a machine frame, a mould opening and closing assembly, an elevating assembly, a bottom mould locking assembly and a driving assembly. The mould opening and closing assembly comprises a bottom mould, a fixed mould plate and a moving mould plate. The elevating assembly comprises a protrusion, an elevating rod and a sliding block. A guiding groove is opened on the protrusion, and the sliding block is slidably disposed in the guiding groove. The bottom mould is fixed on the upper end of the elevating rod. The bottom mould locking assembly comprises a rotation member, a swing member and a sliding block slidably disposed on the machine frame. The driving assembly comprises a rotation shaft and a power source for driving the rotation of the rotation shaft. The moving mould plate, the protrusion and the rotation member are simultaneously fixedly connected with the rotation shaft. When the rotation shaft rotates, the fixed mould plate and the moving mould plate close the mould, the elevating rod drives the bottom mould to rise, and the sliding block slides into between the machine frame and a bottom mould. In the bottle blowing machine of the invention, three assemblies are simultaneously driven only by one rotation shaft to move, and the steps of mould closing, elevating and locking are operated simultaneously. Thus, the bottle blowing machine of the invention is simple in structure and convenient in operation, thereby improving the efficiency of the process of bottle blowing.