JPS56141909A - Method and apparatus for detecting cupping of wire - Google Patents
Method and apparatus for detecting cupping of wireInfo
- Publication number
- JPS56141909A JPS56141909A JP4319680A JP4319680A JPS56141909A JP S56141909 A JPS56141909 A JP S56141909A JP 4319680 A JP4319680 A JP 4319680A JP 4319680 A JP4319680 A JP 4319680A JP S56141909 A JPS56141909 A JP S56141909A
- Authority
- JP
- Japan
- Prior art keywords
- die
- wire
- bridge circuit
- ring
- decrease
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Metal Extraction Processes (AREA)
Abstract
PURPOSE: To detect the cupping as a decrease of unbalanced electric current value of the bridge circuit, and to prevent the breakdown fault of the wire in process of the wire drawing work or in practical service, by installing a drawing force detecting ring, which forms a bridge circuit, between the die and the die holder, and by processing the wire drawing work.
CONSTITUTION: A cylinder 7 preventing the die's rolling motion is provided with a die insert 8 for setting the die 3 at one end and with an insertion hole 9 for threading the wire (a) at another end; a drawing force detecting ring 10 is installed inside the said cylinder 7; this detecting ring 10 forms a bridge circuit, by sticking a couple of vertical strain sensing resistors (b) and a couple of horizontal strain sensing resistors (c) on the surface of the ring 10; thus constituted detector 4 is set in the die holder 2, and a die 3 is set in the die insert 8 of the detector 4; thereafter, the wire (a) is drawn through the die 3. If the ring 10 causes a compression deformation by the effect of deformation resistance and the friction resistance of the wire (a) against the die face, the strain sensing resistors (b) and (c) respectively changes its resistane so that an unbalanced electric current is generated in the bridge circuit. As a result, if a decrease is detected in the electric current, it informs of a decrease of the wire drawing force P.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4319680A JPS56141909A (en) | 1980-04-02 | 1980-04-02 | Method and apparatus for detecting cupping of wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4319680A JPS56141909A (en) | 1980-04-02 | 1980-04-02 | Method and apparatus for detecting cupping of wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56141909A true JPS56141909A (en) | 1981-11-05 |
| JPH0234684B2 JPH0234684B2 (en) | 1990-08-06 |
Family
ID=12657163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4319680A Granted JPS56141909A (en) | 1980-04-02 | 1980-04-02 | Method and apparatus for detecting cupping of wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56141909A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4516620Y1 (en) * | 1966-03-18 | 1970-07-09 |
-
1980
- 1980-04-02 JP JP4319680A patent/JPS56141909A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4516620Y1 (en) * | 1966-03-18 | 1970-07-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0234684B2 (en) | 1990-08-06 |
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