SU1335356A1 - Method of producing corrugated shapes - Google Patents

Abstract

This invention relates to the pressure treatment of sheet material in rolls and can be used in the production of corrugated profiles. The aim of the invention is to improve the quality of profiles and the expansion of technological capabilities. In the process of making a corrugated profile with ridges on the horizontal walls of the corrugations, the areas corresponding to the horizontal walls of the corrugations deflect with a groove in the direction of the peaks of the future ridges. Then the tops of the grooves are moved in the opposite direction and at the same time molded in the center of the grooves are the places of the bends at the vertices of the ridges and the interface of the ridges with the sections of the horizontal walls of the main corrugations. This precludes metal thinning in all elements of the ridges, since the Sieg is formed under the condition of equality of the perimeters of the grooves to the perimeter of the horizontal walls of the corrugations with ridges on the finished profiles x. 6 hp ff, 6 ill., 5 tab. S S (L with with JV with JV 05

Description

The invention relates to the fur pressuring of sheet material with rolls and is intended for use primarily in ferrous metallurgy, as well as in construction in the manufacture of lightweight metal fencing.

The aim of the invention is to improve the quality of profiles and the expansion of technological capabilities.

FIG. Figure 1 shows the pattern of forming the ridge transitions from a curved chute to the top of the ridge of the section corresponding to the horizontal wall of the corrugation, as well as the transitional form of the chute and the finished wall of the corrugation with a ridge; in fig. 2 shows a pattern for obtaining ten profile crossings with ridges on horizontal walls, according to which the main corrugations of the profile are first formed and the horizontal walls of the corrugations are deflected simultaneously by the groove, after which the main corrugations are formed and ridges are formed on their walls; in fig. 3 is a scheme for obtaining a profile with ridges on the horizontal walls of the corrugations, according to which, at first, the channels corresponding to the horizontal walls of the corrugations of the profile are deflected by a groove, then the profile is formed, followed by the ridge; in fig. 4 shows a scheme for obtaining a profile with ridges, according to which the sections corresponding to the horizontal walls of the corrugations of the profile first bend by the chute, then the ridges are formed, after which the profile walls are bent up to the finished shape; in fig. 5 is a scheme for obtaining the same profile, according to which the main corrugations of the profile are first formed to the finished form, their horizontal walls are deflected by a groove at the same time, after which ridges are formed; in fig. 6 shows a scheme for obtaining a profile with ridges, according to which a corrugated profile is first performed, then the horizontal walls of the corrugations are deflected by the groove, after which the ridges are formed.

In the process of making a corrugated profile with ridges on the horizontal walls of the corrugations, it is advisable the sections corresponding to the horizontal walls of the corrugations 1 to deflect by the groove 2 towards the tops of future zigos 3, and the perimeters of the grooves and horizontal walls with ready ridges are equal, and then the tops of the grooves 2 are moved to the opposite side, at the same time, the shape in the center of the grooves 2 places of bends with the tops of the formed ridges 3 and the interface points of the tops of the ridges with the adjacent straight sections 4 of the horizontal walls major corrugations to their respective configurations in the finished profile. In this case, where PI is the central angle at the apex of trench 2; P2 - the central angle of the transitional form of the ridge 3, formed when moving the top of the gutter 2; d - cent0

five

0

five

0

five

0

five

0

five

Rally angle of the finished ridge 3; - height, respectively, of the gutter, transitional form of ridge and ready ridge; - the angles of inclination of the rectilinear sections 4 of the chute 2, the transitional shape of the chute to zig 3; - the corners of the formed junction points of the vertices of the ridges 3 with the adjacent straight sections 4 of the transitional and finished ridge forms.

In addition, it is advisable to maintain the width of the curved section 2 of the section bent constant during the process of moving the top of the channel and forming the ridge and equal to the width of the finished horizontal wall with the ridge. In this case, it is necessary that the vertical axes of the apex of the section bent by the groove and the ridge formed on it coincide.

In the process of making a corrugated profile with ridges on the horizontal walls of the corrugations, it is also advisable to first mold the main corrugations 1 and simultaneously deflect 2 sections corresponding to the horizontal walls of the main corrugations to the angle φ between the side walls of the corrugations 1 and the adjacent sections 4 of the grooves equal to this corner on the finished profile. The angle f is then kept constant during the final simultaneous forming of the corrugation and ridge.

Angles 1151 Cr |), where i | 3i is the angle at which the angle f has reached its final value; 32 and fg are the corners of the corrugations of the corrugations at the transitions in which the ridge and profile are formed to the finished one.

In addition, at the beginning of the workpiece, it is advisable to bend a chute 2 sections corresponding to the horizontal walls of the main corrugations (first and second transitions), then to shape the main corrugations of the profile (3-12th transitions), after which the tops of the grooves 2 it is advisable to move in the opposite direction, simultaneously form in the center of the grooves of the ridge 3.

First, on the workpiece, 2 sections corresponding to the horizontal walls of the main corrugations 1 (first and second transitions) are deflected with a groove, then the tops of the grooves 2 are moved in the opposite direction, while the shape in the center of the ridges 3 grooves (the third and fourth transitions) is formed, and then the main corrugations 1 are formed profile (5-14th transitions).

In addition, in the process of obtaining a corrugated profile with ridges, it is possible to first form the main corrugations of the 1 profile and simultaneously deflect 2 sections corresponding to the horizontal walls of the finished corrugations 1 (1 - 10 transitions) with the groove, and then move the tops of the grooves 2 in the opposite direction form in the center of the grooves 2 ridges 3 to match their configuration on the finished profile (11 - 12th transitions).

In the process of obtaining a corrugated profile with ridges, the main corrugations of the first profile (1-10 transitions) are first formed, then 2 sections corresponding to the horizontal walls of the main corrugations 1 (11-12 transitions) are deflected by a groove, after which the tops of the grooves are moved to the opposite side, the shape at the same time in the center of the gutters 2 ridges. 3 (13-14th transitions).

The method can be implemented on a profiligate unit containing a set of rolls for profiling sheet metal.

For example, for the implementation of the proposed method, the calibration of rolls for profiling from steel billet of 08kp grade, 0.8 mm thick corrugated profile with three corrugations, 44 mm high and three ridges on the horizon of the table is calculated. 2 shows the parameters of the profile molding mode according to the proposed method according to paragraphs. 1-4 claims.

corrugated walls of corrugations 6 mm deep. In order for the chute to deflect the sections 2 corresponding to the horizontal walls of the corrugations, two transitions are required, and to move the vertices of the chutes 2 and simultaneously form the ridges 3 on them, two transitions are also required - the ninth and the tenth. The forming of the main corrugations of the profile is carried out in ten transitions. The width of the groove 2 is equal to the width of the horizontal wall of the finished corrugation 1 with zigom 3

108 mm.

In tab. 1 shows the parameters for the proposed method of profile molding according to paragraphs. 1-3 formulas of the invention.

The perimeter of the gutter corresponds to the perimeter of the horizontal wall of the finished corrugation with a die and is equal to 104.6 mm.

Table 1

The perimeter of the gutter corresponds to the perimeter of the horizontal wall of the finished corrugation with a die and is equal to 104.6 mm.

In tab. 3 shows the parameters of the profile forming mode according to the proposed method.

eight

14

eight

ABOUT

26

table 2

bu according to nn. 1 and 5 of the claims.

Table 3

25 14

5 3,5

154

In tab. 4 shows the parameters of the profile forming mode according to the proposed method. Continuation of table. 3

bu according to nn. 1 and 6 of the claims.

That b-person 4

YU

In tab. 5 shows the parameters modeabu according to paragraphs. 1 and 7 of the profile isobreformovki formulas on the proposed way-shadow.

Table 5

A corrugated profile with ridges on the horizontal walls of the corrugations was obtained. Zigov depth is 6 mm. In addition, the proposed method allows to obtain sig to a depth of up to ten thicknesses of the metal to be profiled.

According to the data of experiments and tests, the proposed method, in comparison with the known method, makes it possible to reduce the number of transitions by 1.5–2 times (from nineteen to ten); It makes it possible to obtain ridges with a depth of up to ten thicknesses of the metal to be profiled, i.e., it allows the technological capabilities of existing equipment to be expanded without the use of additional devices. In addition, the metal thinning on all elements of the ridges decreases significantly and is 7-

YU

45

50

55

ten%. At the same time, the proposed method makes it possible to maintain a protective coating during the profiling process and to improve the quality of the finished product in business.

Claims (7)

1. Method for the production of corrugated profiles with main corrugations of predominantly trapezoidal shape and with ridges on the horizontal walls of these corrugations, including sequential hemming along the transitions of the main corrugations and forming the ridges on the horizontal walls of the main corrugations, characterized in that, in order to improve the quality of the profiles, in the process of forming, the sections corresponding to the horizontal walls of the corrugations deflect, in the direction of the vertices of future ridges, ridges are formed on these sections symmetrically vertical B portions, the portions with perimeters ridges take equal perimeters of these sections on the finished profile, and forming the bending point at the top of each ridge and places zheny zigov conjugated with adjacent portions of the horizontal main steuok corrugations performed simultaneously -c decreasing deflection to zero horizontal walls. 2. Method according to claim 1, characterized in that the widths of the bent horizontal sections in the process of shaping remain constant and equal to the widths of the horizontal walls with ridges on the finished profile. 3. A method according to claim 1, characterized in that firstly the main corrugations of the profile are pre-formed with the simultaneous deflection of their horizontal walls towards the vertices of future ridges to the angles between the side walls and the adjacent horizontal wall sections equal to finished profile, and keeping them constant the final molding of the main corrugations is restored and the deflection down to zero is carried out simultaneously with the final molding of the basic corrugations. 4. A method according to claim 1, characterized in that the deflection of the preform areas corresponding to the horizontal walls of the corrugations is carried out at the first transitions, then the main corrugations are formed, and the reduction of the deflection of the said sections is carried out after the main corrugations of the profile are formed. 5. A method according to claim 1, characterized in that the formation of the main corrugations is carried out after the final forming of the ridges in the areas of the workpiece corresponding to the horizontal walls of the profile. 6. A method according to claim I, characterized in that the deflection of the workpiece areas corresponding to the horizontal walls of the corrugations is carried out simultaneously with the formation of the main corrugations. 7. A method according to claim 1, characterized in that the deflection of the portions corresponding to the horizontal walls of the corrugations is carried out after the formation of the main corrugations. Transition i Transition 2 Perehodb Transition 7 Transition S N Transition 9 Moving Transition 2 1, d. Re; (od 1 Transition Pere Code 5 lepexodft  2 Transition 5 H Transition fU Fig.Ch Translation 1 Transition 1 Transition 1 FIG. AT