Forming method of cold-bent corrugated sheet with small corrugated sharp angle bending angle

Abstract

The invention discloses a forming method of a cold-bent corrugated plate with a small corrugated sharp-angle bending angle, which solves the problem of how to complete the cold-bending forming of the small corrugated sharp-angle bending angle; a fixed slide seat (3) of an upper roller is arranged on an upper crossbeam (1) of a U-shaped roller fixing frame, an upper roller lower pressure screw (4) is arranged obliquely on the fixed slide seat of the upper roller, an upper roller fixing seat (5) is connected to the upper roller lower pressure screw, and a An upper roller (7); a fixed slide seat (9) of a lower roller is arranged on a lower crossbeam (8) of a U-shaped roller fixed frame; a lower roller pressing screw (10) is arranged obliquely on the fixed slide seat of the lower roller; a lower roller fixing seat (11) is connected to the lower roller pressing screw; a lower roller (13) is arranged on the lower roller fixing seat; and a rolled steel plate (14) which has been corrugated at 90 degrees is arranged between the upper roller (7) and the lower roller.

Description

Technical Field

[0001] The invention relates to a corrugated steel plate cold bending forming device, in particular to a cold bending corrugated plate forming device with a small corrugation sharp angle bending angle and a forming method thereof. Background Art

[0002] On the top plate of the subway car, a corrugated plate with a thickness of 0.8 mm is often used. The height of the corrugations on the corrugated plate is relatively small, generally only 1.3 mm in height, and the bending angle of the corrugations is required to be an acute angle less than 90 degrees. The corrugations on the corrugated plate are obtained by cold bending and forming technology; in the existing cold bending and bending equipment of the corrugated plate, two upper and lower rolling straight rollers are generally provided, and the steel plate is rolled between the two straight rollers to bend the corrugations. The bending angle is generally 90 degrees. In order to form a bending angle less than 90 degrees, side vertical rollers are usually provided. Since the thickness of the bent steel plate is only 0.8 mm thick, the bending of the small corrugation acute angle cannot be completed by setting the side vertical rollers; at the same time, since there are multiple groups of corrugations that need to be formed on the corrugated plate, and the plate width of the corrugated plate is also relatively wide, it also becomes a factor that hinders the setting of the side vertical rods. How to achieve the cold bending of the small corrugation acute angle bending angle becomes a difficult problem that needs to be solved on site. Summary of the invention

[0003] The invention provides a forming device for a cold-bent corrugated plate with a small corrugated sharp-angle bending angle, which solves the technical problem of how to complete the cold-bending forming of the small corrugated sharp-angle bending angle.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The overall concept of the present invention is: the upper and lower straight rollers are fixed on the roller fixing seat in an inclined manner so that the central axes of the upper and lower straight rollers are parallel to the vertical sides of the acute angles of the pre-rolled and bent corrugations; the thin steel plate is first formed into a 90-degree right angle bend angle on the upper and lower straight roller rolling lines, and then the steel plate with a 90-degree right angle bend angle is subjected to acute angle forming rolling by the inclined upper and lower straight rollers of the present invention.

[0006] A forming device for cold-bent corrugated plates with small corrugated sharp-angle bending angles comprises a U-shaped roller fixing frame and a corrugated rolled steel plate, wherein a fixed slide seat of an upper roller is arranged on the upper crossbeam of the U-shaped roller fixing frame, a lower pressing screw of an upper roller is arranged obliquely on the fixed slide seat of the upper roller, an upper roller fixing seat is connected to the lower pressing screw of the upper roller, an upper roller connecting pin is arranged on the upper roller fixing seat, and an upper roller is arranged on the upper roller connecting pin; a fixed slide seat of the U-shaped roller fixing frame is provided with a fixed slide seat of the upper roller, and a fixed slide seat of the upper roller fixing seat is provided with a fixed slide seat of the upper roller, and a fixed slide seat of the upper roller fixing seat is provided with a fixed slide seat of the upper roller fixing seat ... A fixed slide for the lower roller is arranged on the crossbeam, on the fixed slide for the lower roller, a lower roller pressing screw is arranged obliquely, a lower roller fixed seat is connected to the lower roller pressing screw, a lower roller connecting pin is arranged on the lower roller fixed seat, and the lower roller is arranged on the lower roller connecting pin; a corrugated rolled steel plate with a 90-degree corrugation is arranged between the upper roller and the lower roller, and the 90-degree corrugated edge on the corrugated rolled steel plate passes through the rolling bite line between the upper roller and the lower roller.

[0007] The U-shaped roller fixing frames are arranged at intervals along the longitudinal rolling line. On each U-shaped roller fixing frame, upper rollers and lower rollers are correspondingly arranged up and down; the two adjacent groups of rollers are respectively arranged on the forming positions on both sides of the same corrugation on the corrugated rolled steel plate.

[0008] A method for forming a cold-bent corrugated plate with a small corrugated sharp bending angle, comprising a square-shaped roller fixing frame and a corrugated rolled steel plate, characterized by the following steps:

[0009] The first step is to cold-bend a thin steel plate with a thickness of 0.8 mm into a 90-degree bending angle to obtain a 90-degree bending angle corrugation;

[0010] The second step is to arrange a fixed slide seat of the upper roller on the upper crossbeam of the U-shaped roller fixed frame, and to obliquely arrange a lower pressure screw of the upper roller on the fixed slide seat of the upper roller, and to connect the upper roller fixed seat to the lower pressure screw of the upper roller, and to arrange the upper roller on the upper roller connecting pin shaft arranged on the upper roller fixed seat;

[0011] The third step is to arrange a fixed slide seat of the lower roller on the lower crossbeam of the U-shaped roller fixed frame, and to obliquely arrange a lower roller pressing screw on the fixed slide seat of the lower roller, and to connect the lower roller fixing seat to the lower roller pressing screw, and to arrange the lower roller on the lower roller connecting pin arranged on the lower roller fixing seat;

[0012] Step 4: Adjust the inclination of the upper roller pressing screw and the lower roller pressing screw so that the bending angle formed by the upper roller and the lower roller matching is the acute angle required for rolling;

[0013] Step 5: Place the thin steel plate with 90-degree bending angle corrugations between the upper roller and the lower roller, and place the forming edge at the rolling forming bite between the upper roller and the lower roller.

[0014] The invention installs two upper and lower rollers by tilting the shaft, and realizes the continuous forming of the small-angle corrugation angle of less than 90 degrees of the corrugated plate by rolling the two upper and lower rollers at a certain angle to the corrugated plate surface; the structure is simple and the implementation is easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 It is a diagram showing the coordination relationship between the corrugated rolled steel plate 2 of the present invention and the rollers along the rolling line. DETAILED DESCRIPTION

[0017] The present invention is described in detail below in conjunction with the accompanying drawings:

[0018] A forming device for cold-bent corrugated plates with small corrugated sharp angle bending angles, comprising a U-shaped roller fixing frame and a corrugated rolled steel plate 2, wherein a fixed slide seat 3 of an upper roller is arranged on an upper crossbeam 1 of the U-shaped roller fixing frame, a lower pressing screw 4 of an upper roller is arranged obliquely on the fixed slide seat 3 of the upper roller, an upper roller fixing seat 5 is connected to the lower pressing screw 4 of the upper roller, an upper roller connecting pin 6 is arranged on the upper roller fixing seat 5, and an upper roller 7 is arranged on the upper roller connecting pin 6; a fixed roller 8 is arranged on the lower crossbeam 8 of the U-shaped roller fixing frame, A fixed slide 9 of the lower roller, on which a lower roller pressing screw 10 is obliquely arranged, a lower roller fixed seat 11 is connected to the lower roller pressing screw 10, a lower roller connecting pin 12 is arranged on the lower roller fixed seat 11, and a lower roller 13 is arranged on the lower roller connecting pin 12; a corrugated rolled steel plate 2 with a 90-degree corrugation is arranged between the upper roller 7 and the lower roller 13, and the 90-degree corrugated edge 15 on the corrugated rolled steel plate 2 passes through the rolling bite line between the upper roller 7 and the lower roller 13.

[0019] The U-shaped roller fixing frame is arranged at intervals along the longitudinal rolling line. On each U-shaped roller fixing frame, an upper roller 7 and a lower roller 13 are correspondingly arranged up and down; the two adjacent groups of rollers are respectively arranged on the forming positions on both sides of the same corrugation 16 on the corrugated rolled steel plate 2.

[0020] A method for forming a cold-bent corrugated plate with a small corrugated sharp bending angle, comprising a square-shaped roller fixing frame and a corrugated rolled steel plate 2, characterized by the following steps:

[0021] The first step is to cold-bend a thin steel plate with a thickness of 0.8 mm into a 90-degree bending angle to obtain a 90-degree bending angle corrugation 16;

[0022] Step 2: On the upper crossbeam 1 of the U-shaped roller fixing frame, a fixed slide 3 of the upper roller is arranged, on the fixed slide 3 of the upper roller, an upper roller pressing screw 4 is arranged obliquely, an upper roller fixing seat 5 is connected to the upper roller pressing screw 4, and an upper roller 7 is arranged on the upper roller connecting pin 6 arranged on the upper roller fixing seat 5;

[0023] Step 3: On the lower crossbeam 8 of the U-shaped roller fixing frame, a fixed slide 9 of the lower roller is arranged, on the fixed slide 9 of the lower roller, a lower roller pressing screw 10 is arranged obliquely, a lower roller fixing seat 11 is connected to the lower roller pressing screw 10, and a lower roller 13 is arranged on the lower roller connecting pin 12 arranged on the lower roller fixing seat 11;

[0024] Step 4: Adjust the inclination of the upper roller pressing screw 4 and the inclination of the lower roller pressing screw 10 so that the bending angle formed by the upper roller 7 and the lower roller 13 after cooperation is the acute angle required for rolling;

[0025] Step 5: Set the thin steel plate with the 90-degree bending angle corrugation 16 between the upper roller 7 and the lower roller 13, and set the forming edge 15 at the rolling forming bite between the upper roller 7 and the lower roller 13.

[0026] The fixed slide 3 of the upper roller is fixedly connected to the upper crossbeam 1 by the upper slide fixing bolts 17; the fixed slide 9 of the lower roller is fixedly connected to the lower crossbeam 8 by the lower slide fixing bolts 14; if the size and angle of the cross-sectional corrugation of the rolled profile changes, the position of the roller can be adjusted laterally by moving the position of the fixed slide to adapt to the change in the position of the corrugation bending angle, and the shape and size of the working surface of the roller can be changed at the same time to adapt to the change in the bending angle side length required for the corrugation; and the shaft seat with different hole positions of the fixed positioning bolts can be replaced to change the inclination angle of the downward pressure screw to adapt to the change in the corrugation angle of the profile.

Claims

1. A method for forming a cold-bent corrugated sheet with a small corrugated sharp bending angle, comprising a square-shaped roller fixing frame and a corrugated rolled steel sheet (2), characterized by the following steps: The first step is to cold-bend a thin steel plate with a thickness of 0.8 mm into a 90-degree bending angle to obtain a 90-degree bending angle corrugation (16); The second step is to arrange a fixed slide seat (3) of the upper roller on the upper crossbeam (1) of the U-shaped roller fixing frame, and to arrange an upper roller lower pressure screw (4) on the fixed slide seat (3) of the upper roller in an inclined manner, and to connect the upper roller fixing seat (5) to the upper roller lower pressure screw (4), and to arrange an upper roller (7) on an upper roller connecting pin (6) arranged on the upper roller fixing seat (5); the third step is to arrange a fixed slide seat (9) of the lower roller on the lower crossbeam (8) of the U-shaped roller fixing frame, and to arrange a lower roller lower pressure screw (10) on the fixed slide seat (9) of the lower roller in an inclined manner, and to connect the lower roller fixing seat (11) to the lower roller lower pressure screw (10), and to arrange a lower roller (13) on a lower roller connecting pin (12) arranged on the lower roller fixing seat (11); Step 4: adjusting the inclination of the upper roller pressing screw (4) and the inclination of the lower roller pressing screw (10) so that the bending angle formed by the upper roller (7) and the lower roller (13) after cooperation is the acute angle required for rolling; Step 5: The thin steel plate with the 90-degree bending angle corrugation (16) is arranged between the upper roller (7) and the lower roller (13), and the forming edge (15) is arranged at the rolling forming bite between the upper roller (7) and the lower roller (13).

2. The forming method of a cold-bent corrugated sheet with a small corrugated acute angle bending angle according to claim 1, characterized in that: The fixed slide seat (3) of the upper roller is fixedly connected to the upper crossbeam (1) via the upper slide seat fixing bolts (17); the fixed slide seat (9) of the lower roller is fixedly connected to the lower crossbeam (8) via the lower slide seat fixing bolts (14).

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