RU2335367C2 - Method of manufacture of channeled profiles and profile mill for its realisation - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: shape direct channeled profiles on a strip consequently to transitions with flat sites between them. On last transition the cross-section corrugations are shaped on flat sites between direct corrugations with alternate step on all width of a profile. The profile mill contains two-high stands sequentially located on a bed work with calibers of the main instrument. Calibers of the stands on the first transitions are executed in the form of the packages containing the upper and lower main rollers, established between two pairs of the upper and lower gauging rollers. Packages in the stands are established due to amount of corrugations and linked among themselves with corresponding distant sleeve in each subsequent stand. The caliber of the stand of last transition is executed in the form of rollers placed on all length, a set from the upper and lower first gauging rollers established with step direct corrugations, and from the upper and lower second gauging rollers established between the first gauging rollers. Thus the upper second gauging rollers have built in two main punches, and the lower second gauging rollers have round-nose grooves corresponding to punches. The upper roller of the last stand it is driven, and its rotation is synchronised with rotation of the lower roller due to gear, the lower rollers are linked with a drive.

EFFECT: increased assortment of the profiles produced due to obtaining of a new relief of a profile.

4 cl, 6 dwg

Description

The invention relates to the processing of metals by pressure, namely the production of bent profiles on roll forming mills, and can be used for the manufacture of cladding panels.

A known method of manufacturing corrugated bent profiles according to copyright certificate No. 1433539, published on 10.30.88.

This method consists in the simultaneous formation in the first transitions of several longitudinal corrugations, followed by a gradual increase in their depth and an increase in the number of corrugations in the following transitions.

This method allows to produce profiles such as ribbed plates with longitudinal corrugations.

Closest to the proposed invention relating to the method of manufacturing corrugated panels, is a method of manufacturing corrugated profiles with flat sections between the corrugations according to copyright certificate No. 897329, published 01/15/82. The method consists in sequentially bending profile elements along transitions, starting with profiling the middle section, followed by profiling of the peripheral sections.

The profile relief made according to this method has only longitudinal corrugations.

According to the certificate of authorship No. 1516174, published on 10.23.89, a molding mill for the production of corrugated strips is known which is closest to the proposed one. This well-known mill contains two-roll work stands associated with a group drive. The mill allows you to get corrugated profiles with longitudinal corrugations.

The proposed inventions solve the problem of increasing the assortment of manufactured profiles by obtaining a new profile relief.

To obtain the technical result in the proposed method for the manufacture of corrugated profiles with flat sections between the longitudinal corrugations by sequentially profiling the corrugations along the transitions at the last transition along the entire width of the profile on the flat sections between the longitudinal corrugations, transverse corrugations are profiled with a periodic step.

In this case, the transverse corrugations on adjacent flat sections are profiled in a checkerboard pattern, in 1/2 steps.

To obtain the specified technical result in the proposed profiling mill for the manufacture of corrugated profiles, containing sequentially located on the bed working two-roll stands with gauges of the profiling tool, while the lower rolls are connected to the drive, the gauges of the stands at the first transitions are made in the form of sets containing upper and lower profiling rollers installed between two pairs of upper and lower calibrating rollers, while sets in stands are installed according to the number of profiling corrugations and in each subsequent stand are connected with each other by the corresponding spacer sleeve, the caliber of the stand of the last transition is made in the form of a set of upper and lower first calibrating rollers installed with a pitch of longitudinal corrugations placed along the entire length of the rolls, and of upper and lower second calibrating rollers, installed between the first calibrating rollers, while in the upper second calibrating rollers two profiling punches are integrated, and the lower second calibrating rollers have corresponding radius punches th groove, the upper roll of the last stand is configured a drive, and its rotation is synchronized with the rotation of the lower roller due to the gear, the lower rollers are connected with a drive by means of driving gears, arranged cantilevered on the inner side of the frame.

In this case, the punches on the calibrating rollers are oriented 180 ° relative to each other, while the adjacent second calibrating rollers are rotated 90 ° relative to each other.

The invention is illustrated by drawings, which depict:

figure 1 - diagram of the technological transitions of forming corrugated profile,

figure 2 - caliber profiling tool of the first technological transition,

figure 3 - caliber profiling tool 2-8 technological transitions,

figure 4 - caliber profiling tool of the ninth technological transition,

figure 5 (a, b) - profiling mill, General view, top view,

Fig.6 (a, b) - gears of the drive stands and rolls, General view, side view.

The profiling mill consists of sequentially located working two-roll stands 1-9, which are installed on the frame 10, the upper 11 and lower 12 rolls carrying calibers of the profiling tool. The rotation of the lower rolls 12 is carried out from a common drive, including a gearbox 13 and an electric motor 14, to one of the middle drive gears 15 located cantilever on the inside of the bed 10. The torque is transmitted to other stands by gears 15. To carry out the technological process of profiling transverse periodic corrugations 16, stand 9 is all-wheel drive, and the rotation of the upper roll 9 and lower roll 10 is synchronized by a gear (gear 17, gear 18).

The stands gauges at the first transitions are made in the form of sets containing upper 19 and lower 20 profiling rollers installed between two pairs of upper 21 and lower 22 calibrating rollers, while the sets in the stands are installed by the number of profiled longitudinal corrugations 23. One set is installed in stand 1 , and in each of the subsequent stands 2-9 two sets are installed that are interconnected by the corresponding spacer sleeve 24. The gauge of the stand 9 of the last transition is made in the form of rolls 11, 12 placed along the entire length of An ora of the upper 25 and lower 26 of the first calibrating rollers installed with a pitch of longitudinal corrugations 23, and of the upper 27 and lower 28 of the second calibrating rollers installed between the first calibrating rollers, with two profiling punches 29 embedded in the upper 27 second calibrating rollers ( the second punch (not shown), oriented 180 ° relative to each other, and the lower 28 second calibrating rollers have radius grooves 30 corresponding to the punch (the second groove is not shown). The second calibrating rollers in adjacent rows are oriented 90 ° relative to each other. In the process of profiling, the combination of punches 29 with grooves 30 is provided by the synchronous rotation of the upper and lower rolls 11, 12 of stand 9.

The input device consists of rolls 31, a table 32 with side guide prisms 33.

Working stands 1-9 are installed on the frame 10 with the ability to change when setting to a different type of profile, by basing them on the guide columns 34, supports 35 and fastening with bolts 36.

To regulate the gap between the rolls of the stands in the process of setting up the profiling mill, a device is provided that includes a wedge 37 and an adjusting screw 38.

There is an adjustment of the lateral clearance in the gearing (gear 18, gear 17).

The proposed method is carried out in the following sequence. First, at the first transition 1p, one longitudinal corrugation is profiled 23. Then at the 2p-8p junctions, the number of longitudinal corrugations with flat sections between them is increased by simultaneously profiling one longitudinal corrugation 23 on each side of the finished profile.

The profiling of longitudinal corrugations is carried out on an undeformed section of the sheet by pulling the strip material from the edges to the center, which provides a set of metal for the formation of relief, reduces local stretching of the material, accompanied by a decrease in thickness, prevents damage to the sheet coating (anticorrosive and decorative).

Next, at the last transition 9n, across the entire width of the finished profile on flat sections between the longitudinal corrugations, transverse corrugations 16 are shaped with a periodic step.

On adjacent flat areas, the transverse corrugations are stitched in a checkerboard pattern (in 1/2 steps).

Profiling mill for the manufacture of corrugated profiles works as follows. Through the rolls 31 and prisms 33 of the table 32 of the input device, the strip is defined in the profiling mill.

Then turn on the drive of stands 1-9 (gearbox 13, electric motor 14, gear 15) and set the strip in stand 1, where the central part of the strip is profiled. The profiling rollers 19, 20 profile the longitudinal corrugation 23, and the calibrating rollers 21, 22 smooth flat areas on both sides of the profiled relief. Then the strip is fed into stand 2, in which simultaneously on one side the finished corrugation 23 is likewise profiled on both sides of the finished profile 23. Further profiling of the strip from stand to stand is repeated, gradually increasing the number of corrugations. The final profiling of the corrugations is carried out in stand 9, where periodic transverse corrugations 16 are profiled in flat sections between the longitudinal corrugations 23 and on the side flanges 39 of the punches 29. In this case, the first corrugations 25, 26 calibrate the longitudinal corrugations 23, formed in stands 1-8, and the second calibrating rollers 27, 28 smooth flat areas adjacent to the edges of the finished profile, and between two longitudinal corrugations 23 and transverse corrugations 16.

The proposed profiling mill is shown for the option of obtaining a profile with a pitch of longitudinal corrugations of 77 mm. The profiling mill allows you to get a profile with a step of longitudinal corrugations of 100 mm by reducing the number of working stands.

Profiles made according to the proposed inventions are characterized by high quality, and also allow to obtain corrugated profiles with another combination of relief imitating brickwork (trapezoidal longitudinal corrugations and fillet transverse corrugations).

The use of inventions is possible using well-known technical means.

Claims (4)

1. A method of manufacturing corrugated profiles, including profiling on a strip of longitudinal corrugations with flat sections between them and located on flat sections between longitudinal corrugations with a periodic step of transverse corrugations, characterized in that the longitudinal corrugations are profiled sequentially along the transitions, and the transverse corrugations are profiled over the entire width profile at the last transition. 2. The method according to claim 1, characterized in that the transverse corrugations on adjacent flat sections are profiled in 1/2 steps. 3. Profiling mill for the manufacture of corrugated profiles, containing sequentially located on the bed working two-roll stands with gauges of the profiling tool, the lower rolls of which are connected to the drive, characterized in that the gauges of the stands at the first transitions are made in the form of sets containing upper and lower profiling rollers, installed between two pairs of upper and lower calibrating rollers, sets in stands are installed according to the number of corrugations to be profiled and in each subsequent stand interconnected a corresponding spacer sleeve, the gauge of the stand of the last transition is made in the form of a set of upper and lower first calibrating rollers installed with a pitch of longitudinal corrugations placed along the entire length of the rolls, and of upper and lower second calibrating rollers installed between the first calibrating rollers, while the upper second calibrating rollers are integrated in two profiling punches, and the lower second calibrating rollers have radius grooves corresponding to the punches, the upper roll of the last stand is made original, with the possibility of its synchronized rotation with the rotation of the lower roll by means of a gear transmission, and the lower rolls are connected to the drive by means of drive gears, cantilever located on the inside of the bed. 4. The mill according to claim 3, characterized in that the punches on the upper calibrating rollers are oriented 180 ° relative to each other, while the adjacent second calibrating rollers are rotated 90 ° relative to each other.

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