RU2371269C1 - Section-shaping roller machine - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: invention is related to the field of metal plastic working, in particular to equipment for making of section bars with periodically varying corrugations. Gears installed along edges of working shaping roller are arranged to interact with gears of rotary units, which are installed at the edges of rotary axis, which interacts with hydraulic drive, and shaping cartridge is installed at eccentric section of rotary axis with the possibility to interact with driving working shaping roller. Opening of shaping rollers that roll the main section bar, is carried out due to retracting of independently rotating cartridge, which interacts with driving working shaping roller.

EFFECT: invention provides for reliable feed of initial strip and higher accuracy along length of shaped corrugation periods, reduced scope of equipment design and manufacturing.

3 dwg

Description

The invention relates to the field of metal forming, in particular to equipment for the manufacture of profiles with periodically repeating corrugations.

For example, a work stand for corrugating rolls adopted as an analogue is known, consisting of a bed, work rolls with ring forming elements, bearing pillows and hydraulic cylinders, the plungers of which interact with the pillows of the lower roll, ensuring its vertical movement. The movement of the work roll and the required duration of its standing in the working position are controlled by a speed variator having two shafts, one of which is rigidly connected to the movable upper work roll, a profile cam mounted on the other variator shaft, and a pusher connecting the cam to the hydraulic spool / A.s. 827214 USSR. Crate roll forming mill. - V.I. Anisimov et al. - Publ. in B.I., 1981, No. 17 /.

A disadvantage of the known device is its implementation of the molding of gaps between the corrugations without contact of the strip in close proximity to the forming rolls, and the strip should be supplied with additional pulling devices when the intermediate section is received. This negatively affects the accuracy of the lengths of the periods of the molded corrugations, increases the composition of the equipment and complicates the control system.

The closest of the devices providing an increase in traction is a work stand containing a bed in the form of two racks, an upper drive forming roll with bearing bearings and a lower forming roll / A.c. 1139535 CCCP. Roll work stand roll forming mill. - I.S. Trishevsky and others. - Publ. in B.I., 1985, No. 6 /.

The disadvantage of this device is the presence in the kinematic connection of the forming roller with the profile disc elements of the friction gear, which is unreliable to ensure the traction of the forming roller.

The technical result of the proposed profile-forming roll machine is to increase the reliability of the feed of the original strip and increase the accuracy along the length of the periods of the molded corrugations, reduce the rejection on the formed profiles, reduce the amount of design and manufacture of equipment.

The technical result is achieved by supplying a machine connected to a hydraulic drive with a rotary axis with an eccentric section, installing rotatably at the edges of the rotary axis and pressing the feeding blocks with gears arranged along the edges of the drive forming roller to the upper forming roll, and gears interacting with the gears of the feeding blocks, the lower forming roll is made in the form of a forming sleeve and is located on the eccentric section of the rotary axis with the possibility of rotation and periodically who interact with the forming roll drive.

Figure 1 schematically shows the proposed profile-forming roll machine.

Figure 2 shows the place 1 of figure 1 in the position of the forming rolls when molding the main profile.

Figure 3 shows the divorced position of the rolls when forming the gap periodically repeating profile.

The machine consists of a bed 1, which consists of two racks, in the grooves of which are pillows with bearings for forming rolls, and a drive 2 with an electric motor 3. The upper drive forming roll 4 is a shaft with rings mounted on it, providing in cooperation with the forming sleeve 5 forming longitudinal channels of a periodically repeating profile. On the working drive forming roll 4, gears 7 are installed at the edges, which are in constant engagement with gears 8 of the feeding blocks 9. Both feeding blocks mounted on the concentric parts of the eccentric shaft 6 are pressed against the upper drive roller and constantly supply the original strip with simultaneous molding technological collar. The eccentric shaft 6 due to the drive from the hydraulic cylinder 10 has the ability to rotate 90 degrees. In the eccentric part of the shaft 6, a sleeve 5 is mounted on the bearings, which is involved in the molding of the main middle part of the profile. When turning the eccentric shaft 6 between the sleeve 5 and the working forming roller 4, a gap is formed and the middle, the main part of the profile is not formed. In this case, the initial strip, while remaining clamped in the supply units 9, is reliably protruded from the machine. The operation of the hydraulic cylinder 10 to rotate the eccentric shaft 6 is carried out from the command of the sensor of the length meter 11 of the molded strip according to a given program.

The proposed profile-forming roll machine can be used in the production line of a periodically repeating profile for the walls of oil transformer coolers.

The initial roll strip, passing through the machine due to periodic operation of the eccentric shaft rotation mechanism, is formed into a profile with longitudinal channels and with a smooth middle part, while the dimensions of the main profile and the gaps are determined by a given program of the automatic control system, and can also be stamped in smooth parts the collector neck and connecting holes are made.

Thus, the proposed profile-forming roll machine with gears located on the edges of the forming roll, located in cooperation with the gears of the rotating blocks installed on the edges of the rotary axis, and placing on the eccentric section of the rotary axis of the rotating forming sleeve, interacting with the hydraulic drive and arranged to periodically interaction with the drive forming roll, allows you to:

- establish certain traction forces of the forming roller;

- reduce the marriage of manufacturing profiles in length and height;

- to exclude additional pulling devices from the equipment;

- reduce the cost of manufacturing and installation of equipment;

- reduce the time for the design and manufacture of equipment.

Claims (1)

A profile-forming roll machine containing a bed in the form of two racks, an upper drive forming roll with bearings and a lower forming roll, characterized in that it is equipped with a rotary axis connected to the hydraulic drive with an eccentric section mounted rotatably along the edges of the rotary axis and pressed against the upper forming roll feed blocks with gears located on the edges of the drive forming roll, gears interacting with the gears of the feeding blocks, and the lower muyuschy roll is designed as a sleeve and forming an eccentric portion located on the pivot axis and rotatably drive intermittent interaction with the forming roll.

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