Title:
STRAIGHTENER HAVING STRETCHING CAPABILITIES AND LOWER DRIVING MIXED PRESSURE ROLLS
Document Type and Number:
WIPO Patent Application WO/2012/100738
Kind Code:
A1
Abstract:
A steel reinforcing bar (rebar) straightener having stretching capabilities and lower driving mixed pressure rolls, comprising a traction mechanism in the front section of the straightener, a straightening and stretching mechanism in the rear section of the traction mechanism, and a feed mechanism in the rear section of the straightening and stretching mechanism; the traction mechanism consists of a traction roll frame (1), lower traction rolls (2), upper traction rolls (3), and traction roll adjustment components (4); the straightening and stretching mechanism consists of a straightening roll frame (7), two rows of straightening rolls (8), and straightening roll adjustment components (9); the feed mechanism consists of a feed roll frame (12), a lower row of feed rolls (13), an upper row of feed rolls (14), and feed roll adjustment components (15). During operation, traction rolls connected to and driven by a prime mover grip a rebar (6) from both sides and move the rebar (6) continuously forward. The rebar is repeatedly bent by the driven straightening rolls of the straightening and stretching mechanism, and is straightened and stretched. The straightener can be used for two purposes and is easy to operate. The straightener simplifies the structure of straighteners, conserves the steel material needed to make straighteners, reduces the manufacturing cost, and lowers the operation energy consumption.
Inventors:
ZHANG GUANGWEI (CN)
Application Number:
PCT/CN2012/070690
Publication Date:
August 02, 2012
Filing Date:
January 21, 2012
Export Citation:
Assignee:
HENGYANG WEILI REBAR MACHINERY CO LTD (CN)
ZHANG GUANGWEI (CN)
ZHANG GUANGWEI (CN)
International Classes:
B21F1/02; B21D3/02
Foreign References:
| CN201519723U | 2010-07-07 | |||
| CN2306089Y | 1999-02-03 | |||
| CN102133609A | 2011-07-27 | |||
| JPH07148538A | 1995-06-13 |
Other References:
ZHAO, BINGLI ET AL.: "10LTMQ type steel bar stretch bending straightener design", MECHANICAL ENGINEER, vol. 6, December 1996 (1996-12-01), pages 24 - 25
Attorney, Agent or Firm:
GREENTREE INTELLECTUAL PROPERTY LAW OFFICE (CN)
北京青松知识产权代理事务所（特殊普通合伙） (CN)
北京青松知识产权代理事务所（特殊普通合伙） (CN)
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Claims: