Strip Member Cutting Device with Synchronous Feeding

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Solution Overview

Problem

The existing method for feeding a strip member to a cutter in tire belt manufacturing often results in the front end of the strip member catching in the cutter or failing to be fed successfully due to lack of holding, leading to inefficiencies in the cutting process.

Innovation Solution

A cutting method and device that employs a front end feeding device to hold and release the strip member, combined with a front end grasping hand and fixed-length feeding hand to synchronously feed the strip member a long distance, ensuring the front end is held and guided to prevent catching, while the cutter performs precise cuts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the strip member is fed in a free state without holding the front end, then the feeding process is simple, but the front end may catch in the cutter or fail to be fed successfully

Engineering Contradiction:
Improvefeeding operationVSAvoidfeeding reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The front end feeding device performs preliminary action by holding the front end of the strip member before it reaches the cutter, and the front end grasping hand performs preliminary action by holding the front end after the strip member is fed a short distance. This preliminary holding action prevents the front end from catching in the cutter or failing to be fed successfully, while maintaining simple operation.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the front end feeding device holds the strip member continuously, then the strip member does not catch, but the device complexity increases

Engineering Contradiction:
Improvefeeding reliabilityVSAvoidfeeding mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The feeding mechanism is segmented into multiple functional components: the front end feeding device for initial holding and short-distance feeding, the front end grasping hand for holding after short-distance feeding, and the fixed-length feeding hand for synchronous long-distance feeding. Each component performs a specific function, and they cooperate to prevent catching while maintaining manageable device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The front end grasping hand and fixed-length feeding hand perform synchronous feeding operations, merging their functions to feed the strip member a long distance together. This synchronization ensures reliable feeding without requiring each component to continuously hold the strip member, thus preventing catching while avoiding excessive device complexity.

Inventive Principle:
Principle #5Merging (Combining)

3Speed

If the strip member is fed a long distance without holding, then the feeding speed increases, but the front end catches and feeding fails

Engineering Contradiction:
Improvefeeding speedVSAvoidfeeding reliability
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The front end feeding device holds the strip member and feeds it a short distance before releasing, and the front end grasping hand holds the front end after the short-distance feeding. This preliminary holding action prevents the front end from catching during subsequent long-distance feeding, enabling high feeding speed while maintaining reliability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The front end grasping hand acts as an intermediary that holds the front end of the strip member during the long-distance feeding process. This intermediary holding action prevents catching while allowing the strip member to be fed a long distance at high speed, resolving the contradiction between speed and reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11045967B2Cutting method and cutting device for strip member
Publication Date: 2021.06.29 TOYO TIRE CORP
  • US11045967B2 patent drawing
  • US11045967B2 patent drawing
  • US11045967B2 patent drawing

AI summary

A front end feeding device 23 between a cutter 10 and a fixed-length feeding hand 30 that feeds a strip member 5 on an upstream side of the cutter 10 feeds a front end of the strip member 5 a short distance to a downstream side of the cutter 10, a front end grasping hand 60 on the downstream of the cutter 10 holds the front end of the strip member 5 fed the short distance, the fixed-length feeding hand 30 holds a part of the strip member 5 fed the short distance on the upstream side of the cutter 10, the front end grasping hand 60 and the fixed-length feeding hand 30 synchronously feed the strip member 5 a long distance to the downstream side, and the cutter 10 cuts the strip member 5 having been fed the long distance.