SHELF-PLATE CRACK DETECTING METHOD, HONEYCOMB STRUCTURE DELIVERING METHOD, SHELF-PLATE CRACK DETECTING APPARATUS, AND SHELF PLATE DELIVERING APPARATUS

• US 20160282248A1
• Filed: 03/17/2016
• Published: 09/29/2016
• Est. Priority Date: 03/26/2015
• Status: Active Grant

• Current Assignee: NGK Insulators Limited
• Original Assignee: NGK Insulators Limited
• Inventors: YAMASAWA, Kazuyuki, IHARA, Chikashi, TOKUNAGA, Takeshi
• Granted Patent: US 10,101,254 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01G 19/52 Weighing apparatus combined with other objects, e.g. furniture with walking sticks A45B3/08
• CPC Class Codes: G01N 3/40 Investigating hardness or rebound hardness

Abstract

A detecting apparatus includes: a lifting mechanism section that is provided with a lifting portion for lifting honeycomb structures and a shelf plate; an actual load value measuring section that measures an actual load value; a total load value calculating section that adds up the plurality of measured actual load value; a total load value determining section that compares a standard total weight value of the honeycomb structures and the shelf plate to the total load value and determines whether to satisfy a total load value determining condition; an actual load value determining section that compares the actual load value to the specified load value and determines whether to satisfy an actual load value determining condition; and a shelf-plate crack determining section that determines that the shelf plate is cracked when the total load value determining condition or the actual load value determining condition is not satisfied.

Claims

1. A shelf-plate crack detecting method comprising:

a lifting process of lifting a shelf plate mounted with honeycomb structures using a plurality of lifting portions;

an actual load value measuring process of measuring actual load values applied to the lifting portions by which the shelf plate is lifted, for each of the lifting portions;

a total load value calculating process of adding up the plurality of measured actual load values and calculating a total load value;

a total load value determining process of comparing a prescribed standard total weight value related to a total weight of the honeycomb structures and the shelf plate to the calculated total load value and determining whether the standard total weight value coincides with the total load value;

an actual load value determining process of comparing a specified load value to the actual load value and determining whether the actual load value is equal to or larger than the specified load value, the specified load value being obtained by multiplying the standard total weight value by a specified coefficient specified in advance depending on the number of the lifting portions; and

a shelf-plate crack determining process of determining that the shelf plate mounted with the honeycomb structures is cracked when at least one condition of the total load value determining process or the actual load value determining process is not satisfied.

2. The shelf-plate crack detecting method according to claim 1, wherein the specified coefficient is set by subtracting a measurement error from a standard distribution ratio decided by a prescribed standard mounting position of the honeycomb structure on the shelf plate and a standard lifting position of the lifting portion.

3. The shelf-plate crack detecting method according to claim 1, wherein the lifting portion includes an extension portion extending in proportion to the actual load value.

4. A honeycomb structure delivering method using the shelf-plate crack detecting method according to claim 1, the method comprising:

a stop process of notifying the determination in the shelf-plate crack determining process that the shelf plate is cracked and stopping a delivery of the honeycomb structures due to the shelf plate at the same time; and

a shelf plate delivering process of delivering the shelf plate mounted with the honeycomb structures to a predetermined position when it is determined by the shelf-plate crack determining process that the shelf plate is not cracked.

5. A shelf-plate crack detecting apparatus comprising:

a lifting mechanism section including a plurality of lifting portions that lifts a shelf plate mounted with honeycomb structures;

actual load value measuring sections incorporated in the lifting portions to measure actual load values applied to the lifting portions by which the shelf plate is lifted, for each of the lifting portions;

a total load value calculating section that adds up the plurality of actual load values measured by the actual load value measuring section and calculates a total load value;

a total load value determining section that compares a prescribed standard total weight value related to a total weight of the honeycomb structures and the shelf plate to the calculated total load value and determines whether the standard total weight value coincides with the total load value;

a specified load value calculating section that calculates a specified load value obtained by multiplying the standard total weight value by a specified coefficient specified in advance depending on the number of the lifting portions;

an actual load value determining section that compares the calculated specified load value to the actual load value and determines whether the actual load value is equal to or larger than the specified load value; and

a shelf-plate crack determining section that determines that the shelf plate mounted with the honeycomb structures is cracked when at least one condition of the total load value determining section or the actual load value determining section is not satisfied.

6. A shelf plate delivering apparatus using the shelf-plate crack detecting apparatus according to claim 5, comprising:

a delivery stopping section that notifies the determination in the shelf-plate crack determining section that the shelf plate is cracked and stops a delivery of the honeycomb structures due to the shelf plate at the same time; and

a shelf plate delivering section that delivers the shelf plate mounted with the honeycomb structures to a predetermined position when it is determined by the shelf-plate crack determining section that the shelf plate is not cracked.