Shot Processing Guide Pipe Alignment and Vibration Control

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Solution Overview

Problem

Existing shot processing devices face challenges in aligning the positions of guide pipes and effectively reducing vibration and bending of wire rods during the blasting process, leading to increased wear and maintenance costs.

Innovation Solution

A shot processing device configuration featuring first guide pipes with gradually reducing insertion holes and second guide pipes with convex portions and flange portions, allowing for easy alignment and point contact support of wire rods, reducing vibration and bending, and incorporating a gap for shot media passage and vibration-absorbing members for enhanced stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If spherical support members are used to hold the wire rod, then vibration of the wire rod is reduced and high surface quality is obtained, but the contact portions between the wire rod and support members wear away and running cost increases

Engineering Contradiction:

Improvevibration of wire rodVSAvoidwear of support members

Core Design Contradiction:

Object-affected harmful factorsVSLoss of substance

Solution Approach 1:

The patent replaces durable spherical support members with sacrificial guide pipes that are designed to be replaced rather than maintained. The guide pipes have insertion holes with gradually reduced diameter that contact the wire rod, and when worn, the entire guide pipe is replaced rather than refurbishing spherical members, reducing maintenance costs.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

Instead of using spherical members that roll and create point contact, the patent inverts the approach by using guide pipes with insertion holes that have gradually reduced diameter. This creates a complementary fit where the wire rod contacts the inner surface of the insertion hole, reversing the wear mechanism and reducing harmful vibration.

Inventive Principle:

Principle #13The other way round (Inversion)

2Object-affected harmful factors

If multiple guide pipes are adjacently disposed in series with gradually decreased insertion hole diameter, then wire rod vibration and bending are reduced, but alignment of insertion hole positions becomes difficult

Engineering Contradiction:

Improvevibration and bending of wire rodVSAvoidalignment of insertion holes

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent merges multiple guide pipes into a single integrated guide pipe structure with multiple insertion holes positioned along its length. This eliminates the alignment problems between separate guide pipes while maintaining the vibration-reducing effect of multiple contact points with gradually decreased diameter.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The guide pipe is segmented into multiple sections, each with insertion holes of gradually decreased diameter. This segmentation allows the wire rod to be supported at multiple points along its length, reducing vibration and bending without requiring complex alignment of separate components.

Inventive Principle:

Principle #1Segmentation

3Loss of substance

If guide pipes with gradually reduced insertion hole diameter are used, then wire rod is supported in point contact manner reducing wear, but device complexity increases

Engineering Contradiction:

Improvewear of guide pipesVSAvoidstructure of guide pipes

Core Design Contradiction:

Loss of substanceVSDevice complexity

Solution Approach 1:

The guide pipe structure serves multiple functions simultaneously: it guides the wire rod, reduces vibration through point contact support, and minimizes wear through its gradually reduced diameter design. This multi-functionality reduces overall device complexity compared to separate components for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 solution enables easy alignment of guide pipes, reduces wire rod vibration and bending, and minimizes wear, thereby lowering maintenance costs and improving processing efficiency.

Implementation Method 1

the wire rod is supported, in a point contact manner, with any of the inner surfaces of the guide pipes depending on the vibration

Methodology Applied

Scientific EffectPoint contact support:

Data Source

PatentUS11213928B2Shot processing device

Publication Date: 2022.01.04 SINTOKOGIO LTD

AI summary

First guide pipes are disposed on both sides of blasting areas, and second guide pipes are disposed on both sides of the blasting area. A wire rod W is inserted through the first guide pipes and the second guide pipes, penetrating in a conveying direction of the wire rod W. The diameter of each of first insertion holes of the first guide pipes and second insertion holes of the second guide pipes is gradually reduced toward the downstream side in the conveying direction. The second guide pipe is installed in a state in which the downstream-side end portion in the conveying direction is inserted into the first insertion hole from the inlet side of the first guide pipe.