Belt Conveyor Hook Fixing Tooling with Guided Punches

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Solution Overview

Problem

Existing tooling for fixing hooks on belt conveyors results in imperfect positioning and durability issues due to clearance between staples and the conveyor belt, leading to potential detachment under traction and interference with scrapers.

Innovation Solution

Incorporation of a complementary punch that guides and hits the upper face of the hook, coupled with the main punch, to ensure precise flattening and secure fixation of the upper plate against the conveyor belt, using a combination of manual or powered hammering mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual hammers are used for positioning staples, then the operation is simple and equipment-free, but the positioning accuracy is poor and durability is compromised due to clearance between staples and conveyor belt

Engineering Contradiction:
Improvepositioning accuracyVSAvoidtooling complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent introduces a punch as an intermediary tool between the hammer and the staple. The punch is guided by fingers engaged in holes of both the lower and upper parts of the tooling, ensuring precise positioning and control of the staple driving force, thereby eliminating clearance issues while maintaining operational simplicity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces direct manual hammering of staples with a guided punch system. Instead of directly hitting the staple with a hammer, the hammer strikes the punch which then precisely drives the staple through the hook and conveyor belt, substituting the direct mechanical action with a controlled intermediary mechanism.

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

2Manufacturing precision

If punched holes are used for staple positioning, then positioning precision is improved, but the upper plate may not be perfectly flattened against the conveyor belt, creating clearance

Engineering Contradiction:
Improvestaple positioning precisionVSAvoidhook fixation reliability
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The punch serves as an intermediary that not only drives the staple but also ensures the upper plate is perfectly flattened against the conveyor belt. The guided punch transfers force uniformly, eliminating clearance between the staple and conveyor belt while maintaining reliable hook fixation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent combines two functions into a single guided punch operation: driving the staple through the hook and conveyor belt, and simultaneously flattening the upper plate against the conveyor belt. This merging of functions ensures both precise positioning and reliable fixation without clearance.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If clearances exist between staples and conveyor belt, then the hook may detach under strong traction or interfere with scrapers, but increasing fixation strength requires more complex tooling

Engineering Contradiction:
Improvehook fixation reliabilityVSAvoidtooling complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The guided punch acts as an intermediary that ensures uniform force distribution during staple driving, perfectly flattening the upper plate against the conveyor belt. This eliminates clearances that would otherwise cause detachment or scraper interference, achieving high reliability without complex additional tooling.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces direct hammering methods that create clearance with a guided punch system that eliminates clearance. The mechanical substitution provides controlled, uniform force application that reliably fixes the hook without requiring additional complex fixation mechanisms.

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

Data Source

PatentUS8915417B2Tooling for fixing hooks connecting the ends of belt conveyors
Publication Date: 2014.12.23 ASER SARL
  • US8915417B2 patent drawing
  • US8915417B2 patent drawing
  • US8915417B2 patent drawing

AI summary

Tooling intended for fixing hooks connecting the ends of belt conveyors including a fixed lower part forming an anvil linked to a movable upper part by positioning and centering fingers, a main punch, and a complementary punch. The main punch includes a head provided with enlarged parts and can slide in a vertical channel. The complementary punch can slide in a vertical channel. A vertical guiding groove staple is arranged on the side of the complementary punch. A pneumatic hammer provided with a head hammers the main punch which drives the staple in and drives, or hammers, the complementary punch which simultaneously hammers the upper of the hook.