Europe and the United States-based highway guard rail board molding process design and analysis
Jia Shi Le
(Dalian Bo Luole Steel Co., Ltd. 116 033)
Abstract European and American-style highway guard rail board molding process design and analysis, that the product was introduced open-type
Steel unit designed on the basis of completed transformation, through pilot production to achieve the desired results and success of a one-time test.
Keywords cold-formed steel highway guard rail board molding equipment design and analysis process
1 Overview
Highway guard rail roll forming a common European board
US-Japanese line-type streamlined and two forms, as shown in Figure 1
Is the European-style highway guardrail plate sections.
This fence board process:
Double-cut strip uncoiler coil → strip head and tail and butt
→ 9 roller plate leveler → 160 t press a red one
Group line entry hole → → 12 of Guide Roll (including roll
Type Length Encoder) → Length Cutting Machine hydraulic computer →
→ Packaging storage product testing.
Figure 1 guardrail plate section diagram Roll forming machine
The feasibility of full theoretical requirements, but also to meet the unit structure
Demand and flexible to ensure the product accuracy. The pass has been set
LW 500 debug unit successfully, the operation is flexible, for me
Design of complex cross sections were accumulated experience.
References
1 Shougang steel welding factory, eds. High frequency straight seam tube production. Beijing:
Metallurgical Industry Press, 1988
2 Wang advanced. Cold-formed steel production and application. Beijing: Metallurgical Industry the
University Press, 1994
3 crown. Wide steel plate forming technology summary. Cold-formed steel
Communications, 1994 (2)
4 Zhang Antai, Zhang Jun color. Guardrail plate pass design. Welded, 1997
(3)
(Received date: 2001-06-25)Roll former
Pipe 24 * 40 * No. 6 November 2001
© 1995-2005 Tsinghua Tongfang Optical Disc Co., Ltd. All rights reserved.
Including punching, forming and cutting technology of the production line
Higher levels of process. Punching process to fence boards at both ends
20 holes (some for 18 holes) completed the first punching the
Press process is 160 t imported from Italy, crank
Press, die by the specialized factory processing. Molding process
Roll from the 11 levels to complete (the production line without forming the Legislative
Roll). Hydraulic shearing process computer control, Length
Accurate. Shear device can cut the original width of the largest
160 mm of the profile, one shear lack of space, and second, liquid
Ability of pressure points is not enough. In order to meet the production fence boards
Necessary, re-designed die cut machine and profile cutting (the
Shearing machine is also suitable for producing the opening section profiles, large
Large broadening of the production line of processing capacity and range). Dalian
Machine Tool Research Institute prepared for the production of the corresponding fluid line
Pressure points.Roll forming
As the production line set punching, forming, shearing was
Body, relatively speaking, more difficult, plus the full product line
Is a fully automatic computer controlled, so invested with electrical engineers
When the effort to meet the technological requirements of the production line.