TWI581874B - Separate Continuous Roller Forming Process for Continuous Double - beam Steel - roof Steel Rack - Google Patents

Description

Separate continuous roll forming process for processing continuous double girder light steel roofing members

The invention relates to a processing technology of a light steel component, in particular to a separate continuous roll forming process for processing a continuous double beam light steel roofing member.

Cold-formed thin-walled light steel buildings have the advantages of fast construction, energy saving and environmental protection, and are the architectural trends of the future.

In the prior art, when processing traditional light steel building components, the pre-processing is simple opening and rolling forming, and the complicated processing process is performed after the components are rolled and formed, so the process adopted is one-time completion. That is, the pre-processing step and the continuous rolling step of the member are completed in one step in the roll forming machine. The pre-machining step and the continuous rolling step use the same power system and control system, resulting in poor control of machining accuracy. This makes it impossible to process components for continuous double-beam light steel roof trusses with extremely high precision requirements.

The meaning of "continuous structural beam" in the so-called continuous double-beam light steel roof truss means that the structural beam and structural column at the intersection of the structural column and the structural beam are not cut off or uninterrupted, and the connection between the roof truss and the roof truss is also continuous beam and The structural columns are cross-bonded, and the structural beams and structural columns at the joint are not cut or uninterrupted. In the prior art, the beam or column is cut off where the structural beam and the structural column are cross-coupled.

Due to the high positional accuracy of the beam and column cuts, positioning holes, etc. in the continuous double beam, the length of the columns and beams is much longer than the length of the columns and beams in the existing light steel buildings. The longer the beam-column components, the more precise the punching and other process actions are, the more difficult it is to grasp. After analyzing the cause of the defect, the pre-machining process such as opening, slitting, concave-convex stamping, and printing mark of the general molding machine adopts the same control system and power system as the rolling forming process, and the strip keeps synchronous pulling, each processing action, The strip steel must be stopped at the position set by the automatic control. The power required for roll forming is large, and the error is easy to occur between pulling and stopping. When the machining action is too much, error accumulation will occur, which causes many defects in actual production. Existing equipment and processing techniques are difficult to meet the processing needs of continuous double beam light steel roofing components. In particular, it relates to a light steel roofing member described in the patent no. 200920171128.9, entitled "Light steel roof truss with continuous double beam structure" submitted by the inventor to the national intellectual property on August 20, 2009, and the present invention A light steel roofing member as described in Chinese Patent Application No. 201410035766.3, entitled "Light Steel Roof Truss with Continuous Structural Beams", filed on January 24, 2014.

In view of the above existing defects, the inventors have been actively researching and innovating based on years of rich practical experience and professional knowledge in the design and manufacture of such products, in order to create a new type of continuous double beam light steel for processing. The separate continuous roll forming process of the frame member makes it more practical. After continuous research and design, and after repeated trials of samples and improvements, we finally created an invention with practical value.

An object of the present invention is to overcome the defects that the existing continuous double-beam light steel roofing frame parts are difficult to control in processing, and the processed components are difficult to transport and install, and a separate continuous roll forming process is provided. The processing technology of the continuous double-beam light steel roofing frame is decomposed, and the pre-machining process such as opening, slitting, concave-convex stamping, printing mark and the roll forming process are separately operated, thereby being more suitable for practical use and industrially. Use value.

The object of the present invention and solving the technical problems thereof are achieved by the following technical solutions. A separate continuous roll forming process for processing a continuous double beam light steel roofing member according to the present invention, which comprises the following steps: a pre-processing step for the component strip; and a continuous rolling of the member strip a molding step; wherein the continuous double beam light steel roofing member comprises a beam and/or a column.

The object of the present invention and solving the technical problems thereof can be further achieved by the following technical measures.

The above-described separate continuous roll forming process, wherein the pre-machining step comprises performing a plurality of perforated stamping, slit stamping, bump stamping, printing marks, welding and/or riveting steel sheet reinforcement on the component strip.

The above-mentioned separate continuous roll forming process, wherein the continuous roll forming step further feeds the pre-processed component strip into a continuous roll forming machine for forming, or forming and cutting.

In the foregoing separate continuous roll forming process, the pre-processing step and the continuous roll forming step are operated independently of each other, the pre-processing step power system and control system, and the continuous roll forming step The power system and control system operate independently of each other.

The above-mentioned separate continuous roll forming process, wherein the member is directly subjected to a continuous roll forming step without undergoing a pre-machining step, and the member is prevented from being disposed between the pre-processing step and the continuous roll forming step A buffer space that produces traction pull.

The above-mentioned separate continuous roll forming process, wherein the member is directly wound into a steel coil after being cut off by a pre-machining step or uncut, and then the processed steel strip or steel coil is fed into a continuous rolling press. Forming machine cutting and cutting.

The above-mentioned separate continuous roll forming process, wherein: the continuous beam is L-shaped, U-shaped, C-shaped, Z-shaped and/or flat-shaped, and the column is C-shaped, U-shaped, open-squared and/or Or bend the square.

According to the above technical solution, the separate continuous roll forming process of the beam-column member of the continuous double-beam light steel roof truss of the present invention has at least the following advantages:

First, the processing and process of opening, slitting, concave-convex stamping, and printing marks of continuous double-beam light steel roofing members, the power involved in strip pulling is smaller than that involved in roll forming, so pre-processing and The rolling forming power system runs independently, and the pre-machining adopts a high-precision power system for precise positioning, and then performs processing after positioning to improve accuracy;

Secondly, the power required for the strip forming process of the strip forming process is much larger than that of the opening, the slit, the concave-convex stamping, the printing mark, and the like, and the precision is not high. The system of the invention can be quickly rolled and formed after being separated independently. ;

Thirdly, when the two processes of pre-processing and rolling are linked, the strip steel after the completion of the processing such as strip stamping reinforcement is not cut off, and the buffer space is set between the two processes, so that the strip does not generate traction force, and the two processes do not interfere with each other. It can save plant space and reduce strip transfer;

Fourth, after the completion of the processing such as strip steel stamping and reinforcement, the steel strip is rolled into steel coil, and then the steel is used for roll forming, which is beneficial to long-distance transfer, reducing transportation cost and reducing deformation and damage of the steel during transportation;

Fifthly, in the present invention, the pre-processing step and the continuous roll forming step are operated independently of each other, but may be performed simultaneously at the same time, or may be performed in an unused time and space as needed;

Sixth, the processing properties and precision requirements of the two systems of pre-processing and roll forming are different. The separation of the two process systems can save investment in equipment costs.

In summary, the continuous double-beam light steel roof truss of the present invention has a separate continuous roll forming process for beam-column members, and the process separates the beam-column member stamping and reinforcing process from a continuous roll forming machine to strip steel After the completion of the processing such as punching and reinforcing, the strip is cut off or unrolled into coils, and the processed strip/roll is then fed into a continuous roll forming machine for forming, or forming and cutting. The separate continuous roll forming processing process is beneficial to the continuous complex and precise processing of the beam-column members, as well as saving transportation costs and reducing damage during transportation, and has the above-mentioned advantages and practical values, and is in the same kind of products. No similar structural design has been published or used, and it is truly innovative. It has great improvements in the structure or function of the product, and has made great progress in technology, and has produced useful and practical effects. Compared with the existing roll forming processing technology, it has many functions of enhancement, which is more suitable for practical use, and has extensive use value of the industry, and is a novel, progressive and practical new design.

The above description is only an overview of the technical solutions of the present invention, and the technical means of the present invention can be more clearly understood and can be implemented in accordance with the contents of the specification. Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In order to further illustrate the technical means and efficacy of the present invention for achieving the intended purpose, the continuous continuous roll forming of the beam-column members of the continuous double-beam light steel roof truss according to the present invention will be described below with reference to the accompanying drawings and preferred embodiments. The specific implementation method, characteristics and efficacy of the processing technology are described in detail later.

Please refer to FIG. 1, which shows a solution of a preferred embodiment of the present invention. In the present embodiment, the pre-processing step B and the continuous roll forming step D operate independently of each other, but are continuously performed with each other, that is, continuously at the same place. A buffer space C is provided between the pre-machining step B and the continuous roll forming step D. The separate continuous roll forming process of the beam-column component of the continuous double-beam light steel roof truss proposed by the invention comprises a pre-processing step B such as press reinforcement and a continuous roll forming step D. In operation, the component strip to be processed (ie strip steel coil A) is subjected to a pre-processing step B, and the pre-machined strip steel coil A passes through the buffer space C before the continuous roll forming step D, thereby avoiding The component strip produces traction pulling force. After the independently operated pre-processing step B and the continuous roll forming step D, the finished steel section E is produced.

2A and 2B show another preferred embodiment of the present invention. The strip steel coil A is not cut off after the pre-processing step B, but is rolled into a coil, and then the continuous roll forming step D can be carried out at different sites. This has the advantage that the pre-machining step B (i.e., as shown in Fig. 2A) and the continuous roll forming step D (i.e., as shown in Fig. 2B) can be independently processed according to actual needs. This has the advantage of increasing the accuracy of the pre-machining step B while saving processing costs, as well as the convenience of the machined components.

Figure 3 shows another preferred embodiment of the invention. In this embodiment, the strip steel coil A is cut off after the pre-processing step B, that is, the steel strip H which is cut off after the pre-machining step such as press reinforcement is obtained, and then the continuous roll forming step D is performed.

The technical innovation of the continuous continuous roll forming process of the beam-column component of the continuous double-beam light steel roof truss of the present invention thus constituted by the above method and structure has many merits for the technicians in the same industry today, and indeed has Technological advancement.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the preferred embodiments, it is not intended to limit any of the techniques of the present invention. A person skilled in the art can make some modifications or modifications to equivalent embodiments by using the technical content disclosed above without departing from the technical scope of the present invention, but the present invention does not depart from the technical solution of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of the technical solutions of the present invention.

The reference numerals of the drawings are as follows:
A‧‧‧Steel coil
B‧‧‧Pre-processing steps such as stamping reinforcement
C‧‧‧ buffer space
D‧‧‧Continuous roll forming step
E‧‧‧Finished steel
F‧‧‧Steel belt processing direction
G‧‧‧Rolling steel coils after completion of pre-machining steps such as strip stamping reinforcement
H‧‧‧Steel strips cut after completion of pre-machining steps such as stamping reinforcement

Figure 1 shows a preferred embodiment of the present invention, that is, a schematic diagram of the two processes of B and D; Figure 2A and Figure 2B show another preferred embodiment of the present invention, wherein Figure 2A shows the present invention. Schematic diagram of a pre-processing B for stamping, reinforcing, etc.; FIG. 2B is a schematic view of a continuous roll forming process D according to the present invention; and FIG. 3 shows another preferred embodiment of the present invention, namely, the present invention The stamping, reinforcing and other pre-processing processes B are completed after the completion of the strip H, and sent to the continuous roll forming process D schematic.

A‧‧‧Steel coil

B‧‧‧Pre-processing steps such as stamping reinforcement

C‧‧‧ buffer space

D‧‧‧Continuous roll forming step

E‧‧‧Finished steel

F‧‧‧Steel belt processing direction

Claims (6)

A separate continuous roll forming process for processing continuous double beam light steel roofing members, characterized in that the process comprises the following steps: a pre-processing step for the component strip steel; and a continuous roll forming of the component strip steel a step of said strip pre-machining step and said continuous roll forming step operating independently of each other, said pre-processing step of the power system and its control system being both with said continuous roll forming step of the power system and The control system is operated independently of each other, wherein the member is subjected to a continuous roll forming step without being cut off after the pre-processing step, and the pre-machining step and the continuous roll forming step are provided to avoid the The strip of the component creates a buffering space for the traction force; wherein the continuous double beam light steel roofing member comprises the beam and/or the column made of the strip. The separate continuous roll forming process of claim 1, wherein the pre-machining step comprises performing an open hole stamping, a slit stamping, a bump stamping, a stamping, a soldering, and/or a riveting steel on the component strip. The film is reinforced. The separate continuous roll forming process according to claim 1, wherein the continuous roll forming step further feeds the pre-processed component steel strip into a continuous roll forming machine for molding or molding. Truncated. The separate continuous roll forming process according to claim 1, wherein the member is directly cut off after the pre-processing step, or directly rolled into a steel coil without cutting, and then the processed steel strip or steel The rolls are fed into a continuous roll forming machine for forming and/or cutting. The separate continuous roll forming process according to any one of claims 1 to 3, wherein the pre-processing step and the roll forming step are interlocked, and the avoidance is provided between the two steps. The component strip produces a buffering space for pulling tension. The separate continuous roll forming process according to any one of claims 1 to 3, wherein the continuous beam is L-shaped, U-shaped, C-shaped, Z-shaped and/or flat-shaped, and the column is C-shaped, U-shaped, open square and/or curved square.